item: #1 of 1243
          id: ap-1000
      author: Ficker, T.
       title: Statistics of Electron Avalanches and Streamers
        date: 2007-01-06
       words: 3194
      flesch: 67
     summary: Assuming linear proportionality u c n� � , our curve w(u) will preserve the same shape as that of Furry w n n D( ) ( )� � � �const 1 , i.e. they will both possess the same value of the exponent (1+D). After passing a certain initial distance � � 0 and gathering a certain number of ener- getic electrons N d� �e� 1, which are capable of creating a group of UV photons, a photoionisation process starts and a swarm of K � 1smaller avalanches with mean pop- ulations nd d , ( ) 1 � �e� � appear along the parent ava- lanche.
    keywords: avalanches; d j; data; distribution; e �; electron; ficker; fig; fractal; furry; generation; j j; law; multiplication; n d; n n; new; nonnenmacher; parent; pareto; pattern; phys; populated; populations; probability; statistical; streamer; vol
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        item: #2 of 1243
          id: ap-1002
      author: Frank, H.
       title: Influence of Oxidation Media on the Transport Properties of Thin Oxide Layers of Zirconium Alloys
        date: 2007-01-06
       words: 4923
      flesch: 62
     summary: c� � �2 , but with negative coeffi- cient a. If the voltage is switched off, and the sample is short-circuited, there flows an adequate extraction current I Iex in� � of opposite polarity [13] of the form I B t nex � � � .
    keywords: acta; activation; air; characteristics; charge; circuit; constant; contact; current; dependence; electrode; energy; fig; greater; grey; higher; injection; layer; limited; linear; measured; oxidation; oxide; permittivity; phase; relative; resistance; resistivity; room; samples; short; space; steam; table; temperature; time; voltage; white; zirconium; zr1nb; zry-4w
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        item: #3 of 1243
          id: ap-1004
      author: Chmelík, T.; Zámyslický, P.
       title: EU Emissions Trading Scheme as Implemented in the Czech Republic
        date: 2007-01-06
       words: 1841
      flesch: 52
     summary: The system is based on the following five pillars: � Allocation (a system of distribution of emission allowances to participants, based on harmonized criteria). No. 6/2007 Share of total emissions Number of installations Public energy production (Utilities) 66.59 % 139 Corporate energy production 3.53 % 135 Refineries 1.10 % 4 Chemicals 5.28 % 17 Coke 0.26 % 2 Production and processing of metals 16.22 % 19 Cement 2.95 % 6 Lime 1.34 % 5 Glass 0.84 % 21 Ceramics 0.78 % 60 Pulp 0.19 % 2 Paper and board 0.91 % 16 Total 426 Source: Ministry of the Environment, 2005 Table 1: NAP for the Czech Republic, by sector 0 00
    keywords: allocation; allowances; co2; company; criteria; czech; emissions; energy; ets; european; installations; nap; national; number; paper; participants; plan; production; republic; scheme; sector; share; system; total; trading
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        item: #4 of 1243
          id: ap-1005
      author: Okurka, T.
       title: Wireless Telegraphy at the German Universal Exhibition in Ústí nad Labem in 1903 [1]
        date: 2008-01-03
       words: 1750
      flesch: 62
     summary: [1] T. Okurka This paper focuses on the transmission of wireless telegraphy between Ústí nad Labem and Teplice during the German Universal Exhibition in Ústí nad Labem in 1903. This oblivion can also be explained by the fact that wireless telegraphy was not widely used after the presentation in Ústí nad Labem.
    keywords: austria; bohemia; czech; device; exhibition; fig; für; german; labem; nad; nad labem; pavilion; station; successful; technical; telegraphy; teplice; transmission; universal; vol; wireless; zeitschrift; ústí; ústí nad
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        item: #5 of 1243
          id: ap-1006
      author: Kohout, K.; Nahodil, P.
       title: Simulation Environment for Artificial Creatures
        date: 2007-01-06
       words: 4131
      flesch: 60
     summary: This internal state covers the state of agent sensors and effectors (some of these may be damaged or partial by malfunctioning) and the Vege- tative System Block. It can be used to observe agent parameters at any time of simulation.
    keywords: abstract; actions; agent; analysis; architecture; artificial; behavior; body; communication; control; czech; data; different; effectors; engine; environment; etc; example; external; fig; information; interface; internal; layers; life; mind; modules; new; physical; prague; run; sensors; simulation; step; task; technical; university; use; value; visualization; wal; world
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        item: #6 of 1243
          id: ap-1007
      author: Behrens, A.; Atorf, L.; Schwann, R.; Ballé, J.; Herold, T.; Telle, A.
       title: First Steps into Practical Engineering for Freshman Students Using MATLAB and LEGO Mindstorms Robots
        date: 2008-01-03
       words: 4024
      flesch: 51
     summary: Thus it is very impor- tant to motivate first semester students by confronting them with practical situations, in which they “feel like engineers” right from the beginning of their studies [2]. 48 No. 3/2008 First Steps into Practical Engineering for Freshman Students Using MATLAB and LEGO Mindstorms Robots A. Behrens, L. Atorf, R. Schwann, J. Ballé, T. Herold, A. Telle Besides lectures on basic theoretical topics, contemporary teaching and learning concepts for first semester students give more and more consideration to practically motivated courses.
    keywords: aachen; addition; algorithms; applications; available; basic; bluetooth; communication; complex; computer; concept; course; developed; direct; electrical; engineering; evaluation; exercises; fig; functions; hardware; image; individual; interface; laboratory; learning; lego; level; major; mathematical; matlab; methods; mindstorms; new; nxt; online; practical; process; processing; programming; project; real; results; robot; rwth; section; semester; sensor; skills; software; students; tasks; team; time; toolbox; university; vol
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        item: #7 of 1243
          id: ap-1008
      author: Holub, J.
       title: Finite Automata Implementations Considering CPU Cache
        date: 2007-01-06
       words: 3413
      flesch: 70
     summary: Suitable im- plementations are described in Section 5. 2 Nondeterministic finite automaton Nondeterministic finite automaton (NFA) is a quintuple (Q, �, �, q0, F), where Q is a finite set of states, � is a set of input sym- bols, � is a mapping � �Q Q� ( ) ( )� � �� � , q Q0 � is an initial state, and F Q� is a set of final states. AP_07_6.vp 1 Introduction The original formal study of finite state systems (neural nets) is from 1943 by McCulloch and Pitts [14].
    keywords: approach; automata; automaton; cache; case; cpu; current; cycles; czech; dfa; eds; fig; finite; hard; holub; implementation; input; memory; nfa; number; run; simulation; state; string; suffix; suitable; symbol; table; technical; time; transition; university; vol
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        item: #8 of 1243
          id: ap-1010
      author: Teng, C. P.; Bai, S.; Angeles, J.
       title: Shape Synthesis in Mechanical Design
        date: 2007-01-06
       words: 4973
      flesch: 68
     summary: Specifically, these con- straints are, � �0( , , )� � �� �� � A , � �n B� � �� �1( , , )� � � , (18) where �A and �B are the curvature values of curve �a at point A and of curve �b at point B, respectively, thereby formulating an equality constrained optimum-design problem. Further, we define the n � 2-dimensional vectors, �, �� and ��� , namely, � � �� � � �0 1 1, , , ,� n n T (1) � � � � � � �� � � � �0 1 1, , , ,� n n T (2) �� � �� �� �� �� �� � � � �0 1 1, , , ,� n n T (3) Letting � �k( ) be the cubic polynomial between two consec- utive supporting points
    keywords: 6/2007; a0 �; acta; agile; angeles; blending; continuity; coordinates; cross; cubic; curvature; curve; czech; design; fig; geometric; house; housing; http://ctn.cvut.cz/ap/; k k; lamé; link; mid; non; optimization; optimum; parametric; points; polytechnica; problem; publishing; radius �; section; segment; shape; splines; stress; structural; supporting; synthesis; tan �; technical; university; values; vol; wrist; � c; � k; � n; � y; � �
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        item: #9 of 1243
          id: ap-1013
      author: Behrens, A.
       title: Creating Panoramic Images for Bladder Fluorescence Endoscopy
        date: 2008-01-03
       words: 3270
      flesch: 57
     summary: An external camera is attached at the tail end of the rigid cystoscope, as shown in Fig. 2, and captures video images with a resolution of 720×576 pixels at a frame rate of 25 frames per second. A software implementation in C�� should improve the per- formance, and will be applied in future work.
    keywords: affine; algorithm; bladder; cancer; correspondences; cystoscopy; descriptor; detection; endoscopic; feature; field; fig; frames; homography; illumination; image; interpolation; invariant; local; matching; method; model; mosaicing; panoramic; pdd; point; process; region; results; scale; section; sequence; sift; small; step; stitching; technical; transform; university; urinary; video; vol; � �
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        item: #10 of 1243
          id: ap-1015
      author: Stache, N. C.; Nguyen, T. P.
       title: Automatic Compensation of Workpiece Positioning Tolerances for Precise Laser
        date: 2008-01-03
       words: 4410
      flesch: 59
     summary: Thus, the problem to be minimized can be formulated as Q B B B B BT T T( ) ( ) minu u u u u u� � � �2 2 , (5) with the constraint of u 2 1� to avoid obtaining the trivial so- lution. The use of line-shaped profiles for contour point de- tection instead of entire images or ROIs permits a speed up, which is required for executing one detection and welding cycle per second (detection with a standard PC, 2.6 GHz, Dual-Core, C�� implementation).
    keywords: accuracy; acquisition; addition; algorithm; approach; beam; case; circle; contour; detection; determined; edge; end; estimation; feature; fig; filter; fitting; high; image; laser; line; machine; model; nominal; number; offset; parts; points; position; positioning; procedure; production; profiles; results; robust; roi; rotation; scanner; sought; step; system; technical; university; use; vol; welding; workpiece
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        item: #11 of 1243
          id: ap-1017
      author: Doutres, O.; Dauchez, N.; Genevaux, J.-M.; Dazel, O.
       title: Validity of the One-Dimensional Limp Model for Porous Media
        date: 2008-01-03
       words: 3573
      flesch: 63
     summary: (2) gives the propagation equation on uf ~ ~ limK u upf f f� � �2 2 0� � , (7) with ~ K f the bulk modulus of the air in the pores and ~ lim� p the modified density of the air. AP08_3.vp 1 Introduction In recent years, poroelastic numerical models using finite element method have been widely developed to improve the acoustic efficiency of porous materials used in the aeronautic and automotive industries.
    keywords: acoust; biot; boundary; bulk; critical; density; dimensional; displacement; fig; fluid; frame; frequency; fsi; fsir; influence; layer; limp; limp model; material; model; modulus; parameter; phase; porous; properties; radiation; ratio; soc; solid; stiffness; theory; value; vol; wave
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        item: #12 of 1243
          id: ap-1019
      author: Bednář, M.
       title: The Precision Simulation of the First Generation Matrix Converter
        date: 2008-01-03
       words: 1761
      flesch: 61
     summary: Keywords: Matrix converter, real-time system, simulation, energy conversion. Fig. 1: Configuration of the real system Fig. 2: Bidirectional switch configuration Fig. 48 No. 3/2008 The Precision Simulation of the First Generation Matrix Converter M. Bednář This paper describes simulation of first generation matrix converter, which was realized in the lab.
    keywords: 3/2008; acta; block; configuration; control; converter; current; czech; description; fig; fpga; generation; house; http://ctn.cvut.cz/ap/; matrix; output; polytechnica; program; publishing; real; simulation; switching; system; technical; time; university; vol; voltage; word
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        item: #13 of 1243
          id: ap-1021
      author: Steffen, M.; Leonhardt, S.
       title: Non-Contact Monitoring of Heart and Lung Activity by Magnetic Induction Measurement
        date: 2008-01-03
       words: 2258
      flesch: 56
     summary: (drift compensation Ch4. - Ch. 3) vs. heart reference (PPG) (Volunteer in back position) 5 Conclusion The elimination of electric contact between a medical de- vice and the patient’s body is a promising idea, and this paper presents one feasible approach to non-contact monitoring, based on magnetic induction. (Combination Ch. 4 + Ch. 6) vs. heart reference (PPG) (Volunteer lying on the right side) interference.
    keywords: 3/2008; acta; activity; body; channels; coils; contact; czech; excitation; field; fig; heart; house; http://ctn.cvut.cz/ap/; induced; induction; inductive; lung; magnetic; measurement; monitoring; polytechnica; ppg; publishing; reference; sensor; setup; signal; steffen; technical; university; volunteer
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        item: #14 of 1243
          id: ap-1023
      author: Řeřábek, M.
       title: Space Variant PSF – Deconvolution of Wide-Field Astronomical Images
        date: 2008-01-03
       words: 2309
      flesch: 58
     summary: 2 Transfer characteristics of optical imaging systems The description of transfer characteristics (mainly PSF) of optical imaging system is presented in the following section. This relation affects the transfer characteristics of optical systems and makes them spatially variant.
    keywords: aberrations; astronomical; bootes; characteristics; czech; data; deconvolution; double; fig; function; image; imaging; invariant; meteors; object; observation; optical; paper; processing; psf; response; space; system; transfer; university; use; uwfc; variant; wavefront; � �
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        item: #15 of 1243
          id: ap-1025
      author: Bauer, J.
       title: Single-Phase Pulse Width Modulated Rectifier
        date: 2008-01-03
       words: 2375
      flesch: 64
     summary: The power transferred from the supply to the input termi- nals of the rectifier is: P U U XSR s r s � sin � (1) � U Is s cos �, (2) where Us RMS value of input supply voltage (V), Ur RMS value of first harmonics consumed by AC rectifier input (V), � phase displacement between phasors Us a Ur, Xs input inductor reactance at 50Hz (�), � power factor.
    keywords: analysis; angle; consumed; consumption; control; converters; cos; current; czech; diagram; displacement; effects; electric; factor; fig; harmonics; input; modulation; network; output; phase; power; pulse; pwm; reactive; rectifier; sinusoidal; supply; supply voltage; technical; type; value; voltage; waveforms; width
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        item: #16 of 1243
          id: ap-1027
      author: Sokoll, J.; Fingerhuth, S.
       title: Psychoacoustic Properties of Fibonacci Sequences
        date: 2008-01-04
       words: 2440
      flesch: 58
     summary: Table 1 shows the binary Fibonacci Sequence for the first 8 years. The sequence of the number of pairs Fn is the original Fibonacci Sequence.
    keywords: adobe; binary; false; fibonacci; fibonacci sequence; fig; frequency; golden; immature; length; listening; number; pair; pass; pdf; peak; pitch; polytechnica; psychoacoustic; rabbits; ratio; results; sequence; sine; sound; spectrum; subjects; technical; tests; true; university; vol; year
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        item: #17 of 1243
          id: ap-1029
      author: Šimeček, I.
       title: Acceleration of Sparse Matrix-Vector Multiplication by Region Traversal
        date: 2008-01-04
       words: 4967
      flesch: 61
     summary: D I I( )� � . If � �n r, then the R-CSR format is chosen, otherwise the R-XY format is chosen.
    keywords: 4/2008; acta; adobe; algorithm; approach; array; box; cache; cbsa; common; csr; csr format; czech; data; elements; false; fig; fit; format; good; house; http://ctn.cvut.cz/ap/; large; locality; matrices; matrix; memory; misses; multiplication; nonzero; number; optimal; overhead; performance; polytechnica; publishing; ratio; region; row; size; sparse; speedup; spm×v; storage; strategy; technical; time; transformation; traversal; traversing; true; university; vector; vol
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        item: #18 of 1243
          id: ap-1031
      author: Jirout, T.; Fořt, I.
       title: An Investigation of the Erosion Wear of Pitched Blade Impellers in a Solid-Liquid Suspension
        date: 2008-01-04
       words: 4705
      flesch: 61
     summary: Pitched blade impellers with four adjustable inclined plane blades made from construction steel (pitch angle � � 30°), pumping downwards were investigated in a fully baffled flat bottomed cylindrical agitated vessel (vessel diame- ter T � 300 mm, four baffles of width b � 30 mm, impeller Keywords: pitched blade impeller, erosion wear, solid-liquid suspension. Fig.
    keywords: 4/2008; acta; average; blade; concentration; constant; corundum; czech; dependence; diameter; different; erosion; false; fig; geometric; house; http://ctn.cvut.cz/ap/; impeller; levels; min; parameter; particle; polytechnica; process; publishing; rate; solid; speed; suspension; table; technical; time; true; university; values; vol; volumetric; wear; weight
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        item: #19 of 1243
          id: ap-1033
      author: Klenko, Y.; Scholtz, V.
       title: Influence of a Point-to-Plane DC Negative Corona Discharge on Gel Surfaces
        date: 2008-01-04
       words: 2440
      flesch: 52
     summary: This paper focuses on an experimental investigation of the influence of the single-point and multi-point corona discharge electric field on gel surface. Each type of gel electrode was placed in a standard Petri dish (90 mm in diameter).
    keywords: adobe; agar; applications; atmospheric; corona; corona discharge; current; czech; deformation; dependence; depth; diameter; dimple; discharge; electrode; exposition; false; fig; gel; hollow; influence; ions; medium; min; needle; pdf; petri; plane; plasma; point; pressure; standard; surface; temperature; time; true; vol
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        item: #20 of 1243
          id: ap-1035
      author: Semančík, P.; Cimbala, R.; Záliš, K.
       title: Thermal – Oxidation Stability of Insulating Fluids
        date: 2008-01-04
       words: 2289
      flesch: 51
     summary: The test was carried out under the following conditions [1]: � temperature 100 °C, � volume of oil samples 5 l, � bubbling of oil dried and refined by air in larger amounts than are needed for reaction of oil with the air, � accelerator: copper wires in quantities cca 0.1 cm2/g mea- sured oil. Test conditions: The filtered fluid sample oxidizes under the following conditions [3]: � oil weight: 25 g � 0.1 g, � oxidation gas: air, � gas flow speed: 0.15 l/h � 0.015 l/h, � test period: � 164 h – for uninhibited oil, � 500 h – for inhibited oil, � accelerator: copper wires in quantities 28.6 cm2 � 0.3 cm2 measured oil.
    keywords: a.s; adobe; air; chamber; conditions; czech; dielectric; false; high; insoluble; insulating; method; oil; oils; orgrez; oxidation; parameters; pdf; polytechnica; sample; sediments; stability; technical; temperature; test; thermal; true; university; values; vol; čez
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        item: #21 of 1243
          id: ap-1039
      author: Fořt, I.; Hasal, P.; Paglianti, A.; Magelli, F.
       title: Axial Force at the Vessel Bottom Induced by Axial Impellers
        date: 2008-01-04
       words: 4478
      flesch: 55
     summary: It follows from Figs. 3 and 4 that the subregion between ra- dius r1 (R1) and radius r2 (R2) of the flow along the bottom practically diminishes at the level of impeller C T � 1 3. (2) Figs. 3 and 4 illustrate the above mentioned radial profiles of the mean time local dynamic pressure, always at two levels of impeller speed.
    keywords: adobe; agitated; axial; axial dynamic; blade; blade impeller; clearance; coordinate; cylindrical; czech; dimensionless; direction; distance; dynamic; dynamic pressures; experiments; false; fax; fax1; fig; figs; flat; flow; force; form; impeller; liquid; local; mean; mixing; pressure; profiles; quantity; radial; radius; rpmn �; speed; subregion; time; transducers; true; values; vessel; vol; wall
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        item: #22 of 1243
          id: ap-1041
      author: Frydrýšek, K.
       title: Probabilistic Analysis of the Hard Rock Disintegration Process
        date: 2008-01-04
       words: 3057
      flesch: 50
     summary: Keywords: Hard rock (ore), cutting bit, disintegration process, FEM, probability, SBRA method, parallel computing. The evaluation of one force measurement (Fig. 19) shows that the maximum force is RMAXEXP � 5280 N. Hence, the relative error calculated for the acquired median value RMAXSBRA, FEM MED� � 5068 N, see Fig. 18, is: �R R R RMAX � � � � � MAX MAX MAX EXP SBRA, FEM MED EXP 0 01 4 02 . .
    keywords: acta; adobe; application; bit; carlo; computers; cpu; czech; disintegration; elements; engineering; false; fem; fig; forces; fracture; house; http://ctn.cvut.cz/ap/; inputs; large; material; method; monte; msc.marc/mentat; ore; parallel; polytechnica; process; publishing; reaction; results; sbra; simulations; software; solution; stochastic; stress; technical; true; university; vol
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        item: #23 of 1243
          id: ap-1043
      author: Hilar, M.; Pruška, J.
       title: Statistical Analysis of Input Parameters Impact on the Modelling of Underground Structures
        date: 2008-01-05
       words: 3352
      flesch: 59
     summary: One way is to define the probability that a safety factor F is less than a prescribed value F0: P F F n N ( )� �0 , (2) where n � number of trials in which F < F0 , N � number of selections. 48 No. 5/2008 0.5�1 �0.5 0 1 0 F t( ) Range of the input parameters ´qi 0.5 0.6 0.8 1 0.4 0.2 �1 Fig. 2: Dividing the distribution function into intervals 0.45 0 0.4 0.35 0.25 0.15 0.05 0.3 0.2 0.1 Standard variable t f t( ) �3 �2 �1 0 1 2 3 Fig. 1: Probability density function – Gaussian distribution u u N i Ni � � �( )1 , (3) where i n� 1 2, , ,� (n number of values), u � a random number (u � 0 1, ), ui � random numbers in the i th interval, N � number of the non-overlaying intervals.
    keywords: acta; analysis; behaviour; carlo; classification; czech; engineering; excavation; fig; function; fuzzy; ground; house; http://ctn.cvut.cz/ap/; hypercube; input; interval; latin; mass; membership; method; modelling; monte; number; numerical; parameters; polytechnica; prague; probability; publishing; random; results; rock; sampling; set; sets; simulation; statistical; technical; tunnel; university; values; variable; vol
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        item: #24 of 1243
          id: ap-1045
      author: Jilemnická, L.; Berka, V.; Hromada, E.
       title: Development of Real Estate Market in the Czech Republic
        date: 2008-01-05
       words: 1727
      flesch: 62
     summary: The slow growth in interest rates slightly increases the ten- dency to sell older flats. A similar trend can also be observed in the tenancy of older flats.
    keywords: average; categories; category; czech; estate; fig; flats; floorage; market; metre; older; prague; prices; quotations; real; republic; software; square; technical; time; units; university
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        item: #25 of 1243
          id: ap-1047
      author: Prajzler, V.; Jeřábek, V.; Lyutakov, O.; Hüttel, I.; Špirková, J.; Machovič, V.; Oswald, J.; Chvostová, D.; Zavadil, J.
       title: Optical Properties of Erbium and Erbium/Ytterbium Doped Polymethylmethacrylate
        date: 2008-01-05
       words: 3795
      flesch: 72
     summary: � The content of Er3� and Er3� � Yb3� ions had a significant effect on the transmission spectra. Yb In d e x o f re fr a c ti o n (- ) Wavelength (nm) Fig. 6: Wavelength dependence of the refractive indices a) of the Er3� and b) Er3��Yb3� doped PMMA layers using erbium(III) and ytter- bium(III)
    keywords: acta; bands; czech; doped; earth; er3; erbium; erbium(iii; erf3; fig; house; http://ctn.cvut.cz/ap/; indices; ions; issue; journal; layers; materials; optical; pmma; polymer; polytechnica; properties; publishing; refractive; samples; spectra; technical; university; vol; wavelength; yb3; ytterbium; ytterbium(iii
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        item: #26 of 1243
          id: ap-1049
      author: Římal, J.; Šindler, D.
       title: Comparison of Temperature Loadings of Bridge Girders
        date: 2008-01-05
       words: 2808
      flesch: 52
     summary: Using reference temperature t f � 10 °C (tem- perature when the bridge girder was placed on the bearings), the uniform temperature components are as follows: �t t tmax max� � � � � � �0 40 10 30 °C �t t tmin Keywords: temperature loading, temperature gradients,bridge constructions, temperature difference components, deformation, temperature distribution, maximum moments from temperature loading. Fig. 1: Border bridge on the D8 motorway in summer and in winter 2.2 Loading according to ENV 1991-2-5 This standard groups structures for temperature loading into three types: � Type 1 – steel deck on steel girders.
    keywords: bridge; changes; component; composite; concrete; czech; deck; difference; direction; env; fig; girder; gradient; loading; moments; standard; steel; structure; technical; temperature; type; uniform; university; values; vertical; vol; čsn
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        item: #27 of 1243
          id: ap-1051
      author: Šimeček, I.
       title: Memory Hierarchy Behavior Study during the Execution of Recursive Linear Algebra Library
        date: 2008-01-05
       words: 2693
      flesch: 64
     summary: A B A B A B 1 2 1 2 gemm gemm ( , ) ( , ) C( ) , ( )k C C A A B B A A � � � � � � � � �� � �� � � � � 1 2 1 2 1 2 1 2 gemm � � � � � � � � ( ) ( , ) ( , ) B B A B A B A B A B 1 2 1 1 2 2 1 1 2 2gemm gemm 3.3 Compulsory misses During the execution of GEMM(A, B, C, i, j, k) routine all ele- ments from arrays A, B and C must be loaded or written to the cache. A B� � (abbreviated as GEMM, assuming the ordering of loops: i, j, k) is as follows: 3.2 Recursion in matrix-matrix multiplication Let us denote C(i) if the final result (matrix C) is computed from the recursion by i variable.
    keywords: acta; algebra; cache; codes; comparison; czech; data; different; fig; gemm; good; house; http://ctn.cvut.cz/ap/; implementation; linear; matrix; memory; multiplication; performance; polytechnica; procedure; ratio; recursive; size; technical; tlb; university; utilization; variants; vol
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        item: #28 of 1243
          id: ap-1053
      author: Rieger, F.
       title: Dissipative Heating in a Rotational Viscometer with Coaxial Cylinders
        date: 2008-01-05
       words: 2483
      flesch: 72
     summary: Using this model, the dependence of shear stress � on shear rate can be expressed by the relation: � �� K n� , (1) where K is the coefficient of consistency and n stands for the flow behaviour index. Using this model, the relation of shear stress � and shear rate �� can be expressed by the following relation: � � � �� �p� 0 for � �� 0, (2) where �0 is the yield stress and �p stands for plastic viscosity.
    keywords: cylinder; dimensionless; exp; inner; outer; pa �; shear; t h; t k; t t; temperature; y �; � fig
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        item: #29 of 1243
          id: ap-1055
      author: Svítek, M.
       title: Wave Probabilistic Model of Binary Time Series
        date: 2008-01-05
       words: 4987
      flesch: 69
     summary: A A A A r r n k r r r n k n 1 1 2 1 0 1 � � � � � � � � � � � � � � � A A2 2 0) ( )� � �� � N (10) which yields into form: P A A( )r r nn1 1 1 � �� � � � �� (11) where A r ii �� means the inversion state in comparison with A r ii �� on quantum object ( )� � i . i � � � � � � � � � � � � � 0 1 0 1 0 0 1 0 1 0 e e �1, (25) where �(.) are DFT transformed functions.
    keywords: binary; complex; e �; entanglement; equation; ergodic; events; exclusion; following; functions; inclusion; models; n n; non; objects; p(a; parameters; phase; position �; principle; probabilistic; probabilities; probability; quantum; series; state; theorem; time; vol; wave; � cos; � n
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        item: #30 of 1243
          id: ap-1057
      author: Khalil, S. A.; Fathy, A. M.
       title: An Empirical Method for Estimating Global Solar Radiation over Egypt
        date: 2008-01-05
       words: 3456
      flesch: 62
     summary: List of symbols Gc clear sky global solar radiation in kW/m 2, S sunshine duration in hours, N length of the daylight in hours, G0 extraterrestrial solar radiation on a horizontal sur- face in kW/m2, E0 correction factor of the Earth’s orbit, � sunrise/sunset hour angle, dn day number in the year (1 365� �dn ), � declination of the sun, � latitude of the station, � day angle in radiance, RMSE root mean square error, MBE mean bias error, n number of data pairs, � % absolute percentage error, Gm measured values of global solar radiation, Ges estimated values of global solar radiation. The linear relation correlating G G0 and S N is given in [4] as: G G a b S N0 � �{ ( )}.
    keywords: abu; best; data; different; egypt; empirical; energy; ges; global; global solar; halaib; lat; marsa; matruh; measured; method; radiation; shalatin; simble; sites; solar; solar radiation; values; vol
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        item: #31 of 1243
          id: ap-1059
      author: Novak, M.; Dolšak, B.
       title: An Intelligent System for Structural Analysis-Based Design Improvements
        date: 2008-01-06
       words: 4061
      flesch: 53
     summary: Keywords: computer-aided design, structural optimisation, knowledge based systems, decision support experience gained by many design iterations are of crucial importance. On the other hand, design changes are necessary for under-dimensioned structure, which cannot bear the loadings and will fail during its exploitation.
    keywords: 6/2008; acta; analysis; application; artificial; base; cad; changes; critical; czech; decision; design; designer; element; engineering; experience; fig; finite; help; hole; house; http://ctn.cvut.cz/ap/; improvement; intelligent; knowledge; optimisation; polytechnica; possible; process; propose; publishing; redesign; results; rules; software; steps; stress; structure; support; system; technical; university; user; vol
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        item: #32 of 1243
          id: ap-1061
      author: Škorpík, J.
       title: The Amount of Regenerated Heat Inside the Regenerator of a Stirling Engine
        date: 2008-01-06
       words: 3194
      flesch: 69
     summary: J/kg K, TH � 900 K, TC � 330 K, pmean � 15 MPa, VHC,max � 160 cm 3, VHD � 191 cm 3, VCD � 110 cm 3, VR � 28 cm 3, � � 105°) (b) – Q R, 0�� diagram for the same Stirling engine but in the case of V V VHD CD R� � � 0 cm 3 Qreg amount of regenerated heat inside the regenerator in case (a). 48 No. 6/2008 Volume of the hot side V V VH HC HD( ) ( )� �� � .
    keywords: assumptions; cold; crank; cycle; energy; engine; equation; fig; gas; heat; hot; idealization; max; regenerator; schmidt; stirling; temperature; volume; working
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        item: #33 of 1243
          id: ap-1063
      author: Lidmila, M.; Horníček, L.; Krejčiříková, H.; Tyc, P.
       title: Prerequisites for Increasing the Axle Load on Railway Tracks in the Czech Republic
        date: 2008-01-06
       words: 3439
      flesch: 62
     summary: The allow- able load per linear meter for track load class D3 is 7.2 t�m�1, and for track load class D4 the allowable load per linear meter is 8.0 t�m�1. 143 % 150 % Table 3: Results of deflection measurements on track bed model 30SD E25 22.5 t corresponds to track load classes D3 and D4.
    keywords: axle; axle load; bearing; bed; capacity; corridor; czech; deflection; experimental; fig; gravel; increase; layer; load; loading; model; mpa; permanent; rail; railway; republic; sleeper; substructure; table; technical; thickness; track; values
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        item: #34 of 1243
          id: ap-1065
      author: Zemanová, A.; Zeman, J.; Šejnoha, M.
       title: Simple Numerical Model of Laminated Glass Beams
        date: 2008-01-06
       words: 3554
      flesch: 59
     summary: x x xe i e i e i e i e i) ( ) , ( ) ( ) ,, ( ) , ( ) ( ) , ( ) , ( )� �N r N r� � � � � � � � � �e i e i e i e i e i ex x x x ( ) , ( ) , ( ) ( ) , ( )( ) ( ) , ( ) ( )� �N r N r , ( ) ,� i where e is used to denote the element number, �e and �e denote a relevant searched and test field restricted to the e-th element, Ne i ,• ( ) is the associated matrix of the basis functions and re i ,• ( ) is the matrix of nodal unknowns. i e w iR � � � � � � � � , where K Kew i we i( ) ( )( )� T and � r re i e ai e bi e ai e bi e w e au u w w( ) ,( ) ,( ) ,( ) ,( ) , ,, , , , ,� �� � T � e b, .
    keywords: acta; analysis; analytical; beam; behavior; czech; discretization; e e; e w; element; experimental; fig; finite; form; glass; independent; laminated; layer; layered; load; method; model; numerical; polytechnica; results; section; strain; structures; thickness; vol
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        item: #35 of 1243
          id: ap-1067
      author: Frank, H.
       title: Influence of Simulated LOCA on the Properties of Zircaloy Oxide Layers
        date: 2008-01-06
       words: 2150
      flesch: 61
     summary: c� � �2 , (1) allowing computation of resistivity �, mobility � and carrier concentration n. 4 Results and discussion Further details concerning the theoretical aspects are given in [3, 4]. steam 1200 3 78.79 3a Zry-4W 3744337 steam 1200 3 78.74 Table 1: Characterization of Samples 0 10 20 30 40 50 60 70 0 20 40 60 80 100 voltage (V) c u rr e n t (p A ) Zr1Nb (1200), Ag, T (°C)
    keywords: characteristics; charge; current; energy; extraction; fig; high; injection; layer; linear; oxide; oxidized; pre; properties; resistivity; samples; space; steam; temperature; voltage; zr1nb; zry-4w
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        item: #36 of 1243
          id: ap-1069
      author: Dočekal, A.; Kreidl, M.; Šmíd, R.
       title: Evaluation of Methods used for Separation of Vibrations Produced by Gear Transmissions
        date: 2008-01-06
       words: 5396
      flesch: 60
     summary: Feature selection methods are therefore used that can find a suboptimal solution only, but their computation is less de- manding. 3.1 Branch and Bound Feature Selection The Brand and Bound Feature Selection (BBFS) method is a method of feature selection designed to select features valid for solving the task from the set of given features.
    keywords: algorithm; applied; case; class; computing; criterion; czech; data; datasets; different; error; evaluation; experiment; feature; feature selection; fig; frequency; function; game; gear; gear transmission; gearbox; genetic; group; load; methods; mia; models; multiple; number; power; process; rate; results; search; selection; separation; sermd; set; signal; space; state; technical; testing; time; torque; transmission; university; value; vibration; vibration signal; vol
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        item: #37 of 1243
          id: ap-1071
      author: Vacek, J.; Vacek, J.; Chocholoušová, J.
       title: Rock Burst Mechanics: Insight from Physical and Mathematical Modelling
        date: 2008-01-06
       words: 2745
      flesch: 69
     summary: For rock bursts (also called bumps) to occur, the rock has to possess certain particular rock burst properties leading to accumulation of energy and the potential to release this energy. We observed the mechanism and the history of coal rock bursts.
    keywords: 6/2008; acta; bump; burst; cell; coal; cycles; czech; distribution; experimental; fig; force; house; http://ctn.cvut.cz/ap/; loading; mass; material; mathematical; meters; mining; modelling; particles; photo; polytechnica; properties; publishing; rock; seam; stress; technical; time; university; vacek; vol
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        item: #38 of 1243
          id: ap-1073
      author: Štancl, J.; Skočilas, J.; Šesták, J.; Žitný, R.
       title: Properties of Starch Based Foams Made by Thermal Pressure Forming
        date: 2008-01-06
       words: 6710
      flesch: 61
     summary: * * * ( )1 1 1 1 1 * * , 1 1 1� � � � � � � � �h a s (5) where h* is the relative thickness of an idealized compact crust without pores, and � �� �f ( )*1 h is the mean porosity of the whole sandwich plate. The nonlinear parameter yc was identified by a linear search, so that the criterion s2 was minimized � �s
    keywords: 6/2008; acta; analysis; conductivity; constant; contact; corresponding; crust; czech; density; direct; electric; electrodes; engineering; evaluated; experiments; fig; foam; food; fraction; heated; heating; house; http://ctn.cvut.cz/ap/; indirect; journal; manufactured; mass; mean; mold; ohmic; parameters; pixels; plates; polytechnica; porosity; potato; process; products; properties; publishing; results; sample; sandwich; specific; starch; suspension; table; tanh; technical; temperature; thermal; thermal conductivity; thickness; time; university; values; vol; water
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        item: #39 of 1243
          id: ap-1075
      author: Macek, K.
       title: Pareto Principle in Datamining: an Above-Average Fencing Algorithm
        date: 2008-01-06
       words: 3042
      flesch: 64
     summary: The Pareto principle arises if there is a set P X� where p P X P P X X ( , ) ( ) ( ) ( ) ( ) � � �� � � � � 1 (1) and r P P X( ) ( ) ( )� ��� � 0. O i� � � � � � � � � � � � ( ) ( ) , cc is the complement coding cc : � �n n� 2 and k is a parameter.
    keywords: acta; algorithm; approach; attributes; average; binary; categorical; clustering; czech; data; datamining; fencing; high; http://ctn.cvut.cz/ap/; input; insurance; intervals; mapping; means; methods; new; numerical; pair; pareto; polytechnica; principle; problem; production; results; set; sets; size; subset; table; technical; university; validation; variables; vol
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        item: #40 of 1243
          id: ap-1077
      author: Correia, António J. P. Moura; Rodrigues, Joao Paulo C.; Silvac, Valdir Pignatta e
       title: Influence of Brick Walls on the Temperature Distribution in Steel Columns in Fire
        date: 2009-01-01
       words: 2397
      flesch: 63
     summary: This paper presents the results of fire resistance tests in steel columns embedded on walls, carried out at the Laboratory of Testing Materials and Structures of the Uni- versity of Coimbra. Fire resistance tests were carried out with two different column cross-sections, two ori- entations of the inertia axis in relation to the fire and two thicknesses of the building walls [3].
    keywords: case; columns; cross; design; experimental; exposed; fig; fire; furnace; minutes; resistance; section; steel; structures; temperatures; tests; thermal; thermocouple; time; university; walls; web
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        item: #41 of 1243
          id: ap-1079
      author: Law, A.; Gillie, M.; Pankaj, P.
       title: Incorporation of Load Induced Thermal Strain in Finite Element Models
        date: 2009-01-01
       words: 2384
      flesch: 56
     summary: 1: Plastic flow, and model setup constituents are irrecoverable [5], i.e. they are plastic strains. This means that plastic strains are induced in directions other than the one in which the load is applied.
    keywords: actual; apparent; behaviour; concrete; constituents; constitutive; curve; different; directions; drucker; element; fig; finite; lits; loading; material; model; modulus; non; plastic; prager; strains; stress; surface; total; university; vol; yield
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        item: #42 of 1243
          id: ap-1081
      author: Rahmanian, I.; Wang, Y.
       title: Thermal Conductivity of Gypsum at High Temperatures – A Combined Experimental and Numerical Approach
        date: 2009-01-01
       words: 3001
      flesch: 54
     summary: Thermal properties of gypsum are temperature-depend- ent and among them, thermal conductivity has a critical influ- ence, but there is a wide difference in reported values in litera- ture. Given the effects of porosity, non-homogeneity and moisture in gypsum, direct experimental measurement of thermal conductivity of gypsum at high temperatures is not an easy task.
    keywords: analysis; board; conductivity; density; effective; fig; fire; gyproc; gypsum; heat; high; k t; kiln; material; method; panel; reported; results; specific; temperature; thermal; time; transfer; university; vol; water
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        item: #43 of 1243
          id: ap-1083
      author: Crosti, C.
       title: Structural Analysis of Steel Structures under Fire Loading
        date: 2009-01-01
       words: 3392
      flesch: 55
     summary: By means of non linear analyses, it was possible to include considerations of structural fire resistance, and also to figure out how some elements, such as the columns, are fundamen- tal for the stability of the whole structure. We can conclude that, in performance fire analyses, the global behavior of the struc- ture is more important than a study of the individual elements composing the structure.
    keywords: acta; action; analysis; beam; behavior; buckling; collapse; critical; czech; element; fig; finite; fire; house; http://ctn.cvut.cz/ap/; increase; initial; load; material; meters; pcr; plastic; polytechnica; publishing; resistance; scenario; section; shape; steel; structure; technical; temperature; thermal; trend; university; vol; yield
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        item: #44 of 1243
          id: ap-1085
      author: Santos, S. O.; Rodrigues, J. P. C.; Toledo, R.; Velasco, R. V.
       title: Compressive behaviour at High Temperatures of Fibre Reinforced Concretes
        date: 2009-01-01
       words: 2740
      flesch: 61
     summary: Five type K thermocouples (Cromo-Alumel) 0.5 mm in di- ameter were placed within the specimen and on its surface to measure the temperature during high temperatures tests. A Portuguese study and a Brazilian study are described, which were carried out to develop fiber concrete compositions with better fire behavior.
    keywords: behavior; c t; compositions; compressive; concrete; diameter; fibers; fibres; glass; high; hpc; hsc; load; loss; maximum; polypropylene; results; room; spalling; specimens; steel; strength; table; temperatures; tests; university; vol
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        item: #45 of 1243
          id: ap-1087
      author: Klingsch, E.; Frangi, A.; Fontana, M.
       title: Experimental Analysis of Concrete Strength at High Temperatures and after Cooling
        date: 2009-01-01
       words: 3187
      flesch: 60
     summary: Starting at relative cold strength of 1.0 at 20 °C, the relative hot strength is given by the continuous line, the dots corresponding to the 36 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 49 No. 1/2009 Fig. 4: Concrete specimen after the test Step Measured Category Temperature Level 1 Cold Strength 20 °C 2 Hot strength 300 °C; 500 °C; 700 °C 3 Residual Strength After concrete cooled down to 20 °C from the three hot strength temperature levels from step 2 4 Interim Values 700 °C – 500 °C; 700 °C – 300 °C; 500 °C – 300 °C 5 Slow heating rate (on CEM II-A-LL cement only) 500 °C – hot strength 500 °C – 20 °C (residual strength after cooling down) 6 Magnetic Resonance Imaging (one CEM I specimen only) 300 °C – 20 °C Table 2. It is shown that the SSC concrete specimens perform similar to ordinary cement specimens.
    keywords: aggregates; analysis; cement; cold; concrete; cycle; fig; fire; furnace; heating; higher; hot; level; loss; maximum; phase; rate; residual; results; slag; specimens; ssc; strain; strength; stress; supersulfated; temperature; test; testing; thermal; vol
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        item: #46 of 1243
          id: ap-1089
      author: Espinós, A.; Hospitaler, A.; Romero, M. L.
       title: Fire Resistance of Axially Loaded Slender Concrete Filled Steel Tubular Columns – Development of a Three-Dimensional Numerical Model and Comparison with Eurocode 4
        date: 2009-01-01
       words: 2546
      flesch: 57
     summary: The results of the simulations were compared with a series of fire resistance tests available in the literature [11], as well as with the predictions of the Eurocode 4 [6] simplified calculation model. This model was validated by comparing the simulation results with fire resistance tests carried out by other researchers, as well as with the predictions of the Eurocode 4 simplified calculation model.
    keywords: axial; behaviour; cen; cft; columns; comparison; concrete; displacement; ec4; eurocode; fig; fire; frr; model; numerical; resistance; results; simplified; simulation; specimens; standard; steel; structural; table; temperature; test; thermal; values; vol
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        item: #47 of 1243
          id: ap-1091
      author: Schneider, U.; Schneider, M.; Franssen, J.-M.
       title: Calculation of a Tunnel Cross Section Subjected to Fire – with a New Advanced Transient Concrete Model for Reinforced Structures
        date: 2009-01-01
       words: 5978
      flesch: 64
     summary: 4 2.2.2 Results of measurements and calculations of total strains with an ATCM and EC2 Model The result of the calculation with the EC2 Model with the recommended value of PSS is signifi- cantly different from the calculations with the ATCM and from the test results.
    keywords: acta; atcm; axial; beam; behaviour; bending; calculated; calculation; comparison; concrete; conditions; czech; data; different; e n; ec2; ec2 model; fig; fire; forces; function; heating; high; higher; history; house; http://ctn.cvut.cz/ap/; load; m e; material; maximum; measured; model; new; node; peak; polytechnica; pss; publishing; relationship; restraint; results; schneider; strain; stress; structures; technical; temperature; thermal; time; total; transient; tunnel; university; value; vol
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        item: #48 of 1243
          id: ap-1093
      author: Song, Y.; Huang, Z.; Burgess, I.; Plank, R.
       title: A New Design Method for Industrial Portal Frames in Fire
        date: 2009-01-01
       words: 9476
      flesch: 61
     summary: The non-linear model comprises thermal strain, elastic strain, plastic strain and transient temperature strains, and load history modelling of restraint concrete structures subjected to fire. Further understanding of the behaviour of portal frames in fire is required, to provide other design options so that over-design of column bases and foundations can be avoided, and a more reasonable prediction of real critical temperatures can be made.
    keywords: acta; atcm; axial; base; beam; behaviour; bending; calculated; calculation; capacity; collapse; column; comparison; concrete; concrete model; conditions; critical; czech; data; deformation; design; different; e n; ec2; ec2 model; failure; fig; fire; forces; frame; function; heating; high; higher; hinge; history; house; http://ctn.cvut.cz/ap/; load; lower; m e; material; maximum; measured; mechanism; method; model; moment; new; node; numerical; peak; phase; phase mechanism; plastic; polytechnica; portal; position; pss; publishing; relationship; restraint; results; schneider; second; section; single; stability; steel; strain; strength; stress; structures; technical; temperature; thermal; time; total; transient; tunnel; university; value; vol
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        item: #49 of 1243
          id: ap-1095
      author: Mesquita, L. M. R.; Piloto, P. A. G.; Vaz, M. A. P.; Pinto, T. M. G.
       title: Decomposition of Intumescent Coatings: Comparison between a Numerical Method and Experimental Results
        date: 2009-01-01
       words: 3802
      flesch: 61
     summary: At the moving front, the boundary conditions are: k T x q T T h T T T s t t T k r a av p � � � ��� �� � � � � �� ( ) ( ) ( ( ), ) ,4 4 c for v p � � � � T x k T x Q T s t t TH� � � �c for ( ( ), ) , (6) in which QH is the heat flux due to the endothermic decom- position of the virgin material, given by Q h s tH � � p v� �( ), where hp represents the decomposition enthalpy. The virgin material decomposition produces a fraction of gas, equal to the porosity, �, and a solid char fraction equal to ( )1 � � .
    keywords: calorimeter; char; coating; cone; decomposition; different; energy; equal; equation; experimental; fig; fire; flux; gas; heat; higher; intumescence; loss; mass; material; measured; model; plates; protection; rate; results; steel; t t; technical; temperature; tests; thermal; thickness; university; values; variation; virgin; vol
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        item: #50 of 1243
          id: ap-1097
      author: Pada, D.
       title: Simulation and Study of Natural Fire in a Wide-Framed Multipurpose Hall with Steel Roof Trusses
        date: 2009-01-01
       words: 2622
      flesch: 63
     summary: Keywords: Natural fire safety concept, case study, multipurpose hall, steel roof truss, design fires, sprinkler system, fire resistance, fire simulation, FDS, steel temperature, structural analysis, FEM. Fig. 4.4 Data measured The most important data measured during the fire simu- lation, from the point of view of structural fire safety design, was the adiabatic surface temperature every 5 m of the bottom chord of the steel roof trusses situated above and near to the fire.
    keywords: adiabatic; chord; design; design fire; exhibition; fig; fire; hall; maximum; model; multipurpose; rhr; roof; safety; simulation; spectator; sprinkler; stand; stand fire; steel; study; surface; system; temperature; total; truss; trusses
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        item: #51 of 1243
          id: ap-1099
      author: Anderson, K.; Gillie, M.
       title: Investigation into Methods for Predicting Connection Temperatures
        date: 2009-01-01
       words: 3364
      flesch: 58
     summary: This paper examines two current methods available for predicting connection temperatures as defined in Eurocode 3 [2]. A 3D finite element model is also created to predict connection temperatures using the commercial software package Abaqus
    keywords: average; beam; capacitance; concrete; connection; connection temperatures; cooling; effect; element; emissivity; end; eurocode; experimental; fig; finite; fire; flexible; gas; heat; heating; lower; material; method; mid; modelling; plate; radiative; results; slab; steel; structural; temperatures; tests; time; transfer; university
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        item: #52 of 1243
          id: ap-1101
      author: Chlouba, J.; Wald, F.
       title: Connection Temperatures during the Mokrsko Fire Test
        date: 2009-01-01
       words: 2610
      flesch: 65
     summary: Keywords: Fire test, FE simulation, fire safe connection, temperature prediction, Angelina beam, compartment fire. 4.1 Temperatures The prediction of the gas temperatures by the parametric fire curve and by the zone model conservatively expected a temperature of 1057 °C in 60 min of fire, see Fig. 7.
    keywords: acta; beam; behaviour; bolt; castellated; column; compartment; composite; concrete; connection; czech; fig; fire; flange; gas; height; house; http://ctn.cvut.cz/ap/; load; lower; measured; min; polytechnica; prague; publishing; slab; steel; structure; technical; temperature; test; university; upper; vol
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        item: #53 of 1243
          id: ap-1103
      author: Kallerová, P.; Wald, F.; Sokol, Z.
       title: Connections of Trapezoidal Sheets under Fire
        date: 2009-01-01
       words: 3354
      flesch: 61
     summary: Steel sheets 10 mm in thickness simulated the bearing roof structure and they were anchored into the grips of the testing machine, see Fig. Two modes of failure were observed for sheet thickness 0.80 mm.
    keywords: action; bearing; behaviour; capacity; catenary; connection; czech; deformation; experiments; failure; fig; fire; force; furnace; higher; load; measured; mechanical; resistance; screws; set; sheet; specimen; steel; structure; temperature; tests; thermal; thickness; thin; trapezoidal; trapezoidal sheet; washer
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        item: #54 of 1243
          id: ap-1105
      author: Rajnoha, J.
       title: Multi-Condition Training for Unknown Environment Adaptation in Robust ASR Under Real Conditions
        date: 2009-01-02
       words: 4428
      flesch: 53
     summary: The decrease by 29 % and 14 % in word error rate in comparison with clean speech training data was achieved for the non-adapted and adapted system, respectively. 20 50 100 200 500 1000 all time 65 s 2.8 min 5.7 min 10.9 min 26.9 min 57.2 min 7.8 h Table 3: Average amount of speech data for limited adaptation subsets ALL OFFICE CAR CLEAN NOISY HISNR LOSNR AVG avg avg CS0 CS1 CS0 CS1 CS0 CS1 CS0 CS1 CS0 CS1 CS0 CS1 CS0 CS1 CS0 CS1 noSS 8.32 14.72 3.47 8.14 7.03 35.17 4.0 11.07 13.09 18.79 7.03 10.2 11.88 17.65 12.18 7.83 16.53 SS 8.46 13.53 4.17 8.01 5.2 29.97 4.45 9.82 11.31 16.56 6.83 9.41 11.76 16.31 11.13 7.45 14.8 Imp. �1.68 8.08 �20.17 1.6 26.03 14.79 �11.25 11.29 13.6 11.87 2.84 7.75 1.01 7.59 8.66 4.82 10.48 Table 4: WER for different environmental conditions w/o and with ESS in front-end processing.
    keywords: adaptation; adobe; avg; avg cs0; background; car; clean; condition; condition training; cs0 cs1; czech; data; different; end; environment; false; fig; hisnr; improvement; initial; losnr; matching; material; mllr; models; multi; noise; office; particular; pass; procedure; processing; real; recognition; reduction; results; robust; signal; single; speaker; spectral; speech; subset; subtraction; system; table; task; technical; testing; training; true; university; unknown; vol; wer
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        item: #55 of 1243
          id: ap-1107
      author: Hekrdla, M.
       title: A Constellation Space Dimensionality Reduced Sub-Optimal Receiver for Orthogonal STBC CPM Modulation in a MIMO Channel
        date: 2009-01-02
       words: 5481
      flesch: 63
     summary: The term in (22) simplifies P s s P s b s s b� � � � � � � i i N i H i i N j H i i H j i N j Np 2 1 1 11� � �� � � �� �� � . The maximal termination tail length in symbols is obtained considering U U U Vn n n L n� � � �� � � � �1 2 1 1� as N P M Ltt d � � � � � � � � � � � 1 1 1, (13) � denotes modulo P addition and � �* is an integer part rounded up.
    keywords: acta; adobe; basis; block; burst; channel; code; codeword; coding; communications; constellation; continuous; cpm; criterion; czech; data; differences; distance; eigenvalues; equal; error; fading; false; fig; free; house; http://ctn.cvut.cz/ap/; ieee; linear; matrix; mimo; minimal; minimum; modulation; n n; number; optimal; orthogonal; ostbc; paths; performance; phase; polytechnica; projection; publishing; rank; rate; rayleigh; receiver; s s; s t; signal; space; subspace; t n; t t; technical; time; transactions; true; uncoded; university; vn �; vol
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        item: #56 of 1243
          id: ap-1109
      author: Gross, S.; Kollenbrandt, M.
       title: Technical Evolution of Medical Endoscopy
        date: 2009-01-02
       words: 4419
      flesch: 52
     summary: 8 Computer-based image processing in medical endoscopy Image processing is a crucial part of the efforts to increase the quality and significance of medical images. A review of the technical evolution of medical endoscopy is given in this paper.
    keywords: /qfactor; /tilewidth; aachen; acta; adobe; band; bladder; body; bozzini; camera; candle; capsule; cavities; clinical; czech; diagnostic; diameter; electric; endoscopy; enhancement; equipment; evolution; examination; example; false; field; fig; flexible; fluorescence; germany; history; house; http://ctn.cvut.cz/ap/; human; illumination; images; imaging; inside; later; light; medical; narrow; patient; pdf; pill; polytechnica; processing; publishing; quality; research; rigid; rwth; section; small; spectral; systems; technical; today; true; tubes; university; video; vol; white
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        item: #57 of 1243
          id: ap-1111
      author: Bolom, V.
       title: Noise Reduction in Car Speech
        date: 2009-01-02
       words: 5186
      flesch: 64
     summary: U ei j T j j T� � � 0 for all i j� ) and the desired signal is uncorrelated with the interferences ( [ ( ) ( )]E S e The input signal at the m-th channel can be expressed as x n s n u nm m[ ] [ ] [ ]� � , (1) where s[n] denotes the n-th sample of the desired signal, and um[n] denotes the noise and interference at the m-th sensor.
    keywords: acta; adaptive; adobe; algorithms; array; bap; block; car; coefficients; coherence; criteria; czech; domain; e e; e j; enhancement; false; fig; frequency; gsc; house; http://ctn.cvut.cz/ap/; input; interference; j t; lar; lcb; mcf; methods; microphone; model; msc; multichannel; noise; polytechnica; processing; publishing; real; results; signal; snre; snrin; spatial; speech; system; t �; technical; true; university; vol; weights; y j; � �
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        item: #58 of 1243
          id: ap-1113
      author: Flouri, T.
       title: On Tree Pattern Matching by Pushdown Automata
        date: 2009-01-02
       words: 5818
      flesch: 69
     summary: Set � � is defined as � �� � * �{�}. An (extended) non-deterministic pushdown automaton (non- -deterministic PDA) is a seven-tuple M Q G q Z F� ( , , , , , , )� � 0 0 , where Q is a finite set of states, � is an input alphabet, G is a pushdown store alphabet, � is a mapping from Q G� �( { })
    keywords: acm; acta; adobe; alphabet; arity; automata; automaton; case; cfg; context; czech; deterministic; false; fig; finite; form; free; input; languages; lr(0; matching; new; node; non; notation; ordered; pattern; prefix; pushdown; pushdown automaton; pushdown store; ranked; searching; set; snpda; state; store; string; symbol; transition; tree; tree pattern; true; university; valid; vol; � �
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        item: #59 of 1243
          id: ap-1115
      author: Meiwes, H.
       title: Technical and Economic Assessment of Storage Technologies for Power-Supply Grids
        date: 2009-01-02
       words: 5777
      flesch: 50
     summary: In this situation the operation of energy storage systems can help to allow a higher amount of renewable energy sources (RES) by stabilizing the grid and finally decreasing the consumption of fossil fuels. Having in mind the huge amount of needed storage ca- pacity, other possibilities for energy storage systems such as compressed air energy storage (CAES) or the possibilities of hydrogen production and storage have to be investigated.
    keywords: acid; acta; adobe; air; applications; available; batteries; battery; bromine; caes; capacity; caverns; class; compressed; conventional; costs; cycle; czech; discharge; economic; efficiency; electricity; energy; energy storage; false; fig; flow; gas; germany; grid; high; hours; house; http://ctn.cvut.cz/ap/; hydrogen; kwh; large; lead; leveling; lifetime; limited; lithium; load; long; necessary; number; operation; plants; plug; polytechnica; possible; potential; power; process; production; publishing; range; redox; regard; renewable; reserve; salt; scale; secondary; storage; storage systems; suited; systems; technical; technologies; technology; term; time; today; true; typical; university; vehicles; vol; wind; years; zinc
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        item: #60 of 1243
          id: ap-1117
      author: Janda, J.
       title: Age Dependence of Children’s Speech Parameters
        date: 2009-01-02
       words: 2776
      flesch: 59
     summary: i T i( ) ln ( ) ln ( ) ( )d d C d C d� � � � � � � i i� � 1 , (8) where C i is the covariance matrix, �i is the mean value and ( )d hi is the probability rate of the results on d data, on the as- sumption that hypothesis hi applies. Keywords: children’s speech, age dependence, phonetic analysis.
    keywords: /s/; adobe; age; analysis; central; centre; children; classification; correlation; czech; dependence; deviation; false; fig; frequency; gravity; house; kurtosis; moment; onset; parameters; pdf; phonetic; power; prague; publishing; rate; skewness; spectral; spectrum; speech; standard; time; true; vocal; voice; vol; years
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        item: #61 of 1243
          id: ap-1119
      author: Cingroš, F.; Hron, T.
       title: Working Fluid Quantity Effect on Magnetic Field Control of Heat Pipes
        date: 2009-01-02
       words: 2678
      flesch: 51
     summary: Keywords: Heat pipes, magnetic field, variable conductance, oxygen, cryogenic. Fig. 1: Experimental installation The heat pipe was made from a brassy tube (length 470 mm, outside diameter 8 mm, wall thickness 1 mm). Heat pipes are commonly used for cooling and heat transport in electronic devices, techno- logical processes and in many other types of equipment.
    keywords: adobe; characteristics; control; czech; difference; experiments; exposure; false; field; fig; filling; fluid; heat; heat pipe; influence; liquid; lower; magnetic; magnetic field; mpa; operation; oxygen; pdf; pipe; pressure; quantity; republic; static; temperature; transport; true; vol
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        item: #62 of 1243
          id: ap-1121
      author: Chvalina, M.
       title: Demand Modelling in Telecommunications
        date: 2009-01-02
       words: 2930
      flesch: 53
     summary: y y y y y t t t t t t t � � � � � � � � � � � �� � � � � � � 1 1 11 1 2 � � � � � � � � � � � � �� � � � � � � � ( ) ( ) [ ( ) � ] ( ) 1 1 1 1 1 2 2 3y y y y y t t t t � t t i t y y y � � �� � � � � � � � � � 1 2 2 0 1 1 1 1 ( ) ( ) ( ) � ( ) � � � � � � � � � �
    keywords: adobe; arima; artificial; average; box; characteristics; czech; demand; exponential; false; fig; form; gprs; intelligence; jenkins; l �; linear; methods; model; modelling; n �; network; neural; prague; process; series; smoothing; statistical; t n; t t; telecommunications; time; true; tt �; university; values; y t; y y; yt t
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        item: #63 of 1243
          id: ap-1123
      author: Nevrkla, M.
       title: Capillary Discharge XUV Radiation Source
        date: 2009-01-02
       words: 3439
      flesch: 56
     summary: The apparatus will serve as experimental device for studying of capillary discharge plasma, for test- ing X-ray optics elements and for investigating the interaction of water-window radiation with biological samples. 6: High-frequency equivalent circuit of Rog. coil the capillary end.
    keywords: acta; adobe; apparatus; bank; breakdown; capacitor; capillary; ceramic; circuit; coil; current; czech; discharge; electron; false; fig; frequency; gap; gas; high; http://ctn.cvut.cz/ap/; integration; ionization; laser; length; marx; measured; pdf; pinch; plasma; polytechnica; pre; pressure; probe; radiation; region; rogowski; self; spark; technical; time; transitions; true; tube; uind; university; voltage; xuv
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        item: #64 of 1243
          id: ap-1131
      author: Adamec, M.
       title: Transformation of Commercial Flows into Physical Flows of Electricity – Flow Based Method
        date: 2009-01-02
       words: 3591
      flesch: 58
     summary: The baseband representation of the signal is then after the DSP the resulting LINC signals can be written as S t Va t k t t1 1 2 ( ) ( ) exp( ( ) ( ))� �� � , (3) S t Va t k t t2 1 2 ( ) ( ) exp( ( ) ( ))� �� � . The other values are �C � 0 95.
    keywords: acta; adobe; amplifier; approach; class; clier; components; cos; current; diode; eer; efficiency; envelope; false; fig; frequency; function; high; house; http://ctn.cvut.cz/ap/; hybrid; input; linc; measured; network; order; outphasing; output; phase; polytechnica; power; publishing; recycling; reflection; schottky; signal; supply; system; true; university; vol; voltage
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        item: #65 of 1243
          id: ap-1133
      author: Wang, F.; Koch, O.
       title: Implementation of a Power Combining Network for a 2.45 GHz Transmitter Combining LINC and EER
        date: 2009-01-02
       words: 3591
      flesch: 58
     summary: The baseband representation of the signal is then after the DSP the resulting LINC signals can be written as S t Va t k t t1 1 2 ( ) ( ) exp( ( ) ( ))� �� � , (3) S t Va t k t t2 1 2 ( ) ( ) exp( ( ) ( ))� �� � . The other values are �C � 0 95.
    keywords: acta; adobe; amplifier; approach; class; clier; components; cos; current; diode; eer; efficiency; envelope; false; fig; frequency; function; high; house; http://ctn.cvut.cz/ap/; hybrid; input; linc; measured; network; order; outphasing; output; phase; polytechnica; power; publishing; recycling; reflection; schottky; signal; supply; system; true; university; vol; voltage
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        item: #66 of 1243
          id: ap-1137
      author: Dirix, M.; Koch, O.
       title: 2.45 GHz Class E Power Amplifier for a Transmitter Combining LINC and EER
        date: 2009-01-02
       words: 3222
      flesch: 56
     summary: I ts DC R R( ) sin ( ) sin ( ) sin ( )� � � � � �� � � � � � . 2 Theory For lossless operation of the Class E amplifier there are two criteria that have to be met: First, zero voltage across the transistor terminals when the switch closes [4] u t ts c( )� �� � 0.
    keywords: adobe; amplifier; capacitor; circuit; class; clier; current; czech; design; eer; efficiency; false; fig; frequency; ghz; high; impedance; implementation; input; koch; linc; line; load; network; non; operation; output; pdf; phase; polytechnica; power; real; response; results; signal; simulated; simulation; sin; supply; switch; technical; terminals; transistor; transmission; transmitter; true; university; voltage
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        item: #67 of 1243
          id: ap-1139
      author: Brož, J.; Rieger, F.
       title: Mixing Suspensions in Tall Vessels with a Draught Tube
        date: 2010-01-01
       words: 1033
      flesch: 67
     summary: The power number at the speed necessary to initiate particle suspension Pop does not differ significantly from the power number at the speed necessary to keep a particle in suspension Pok, and its mean value is Po � �163 0 07. . . 2 Modifications to a draught tube for particle suspension
    keywords: agitator; czech; draught; fig; mixing; number; particle; power; speed; suspension; tube
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        item: #68 of 1243
          id: ap-1141
      author: Kučera, O.
       title: Self Heating of an Atomic Force Microscope
        date: 2010-01-01
       words: 1804
      flesch: 66
     summary: This feature of ICN measurements, and of AFM measurements generally, is not widely known and it may lead to incorrect determination of noise characteristics such RMS value of the noise, etc. 4 Conclusion A major problem of AFM measurements (especially on an atomic scale) is the influence of any kind of noise.
    keywords: afm; air; atomic; cantilever; contact; czech; deflection; fig; force; heating; intrinsic; laser; measurements; microscope; min; noise; pspd; resolution; sample; self; signal; temperature; time; tip; vertical; voltage
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        item: #69 of 1243
          id: ap-1143
      author: Ficker, T.
       title: A Note on the Population Statistics of Electron Avalanches and Streamers
        date: 2010-01-01
       words: 733
      flesch: 58
     summary: Keywords: Population statistics, electron avalanches, fractal statistical pattern, ultraviolet data. Fig. The pattern, i.e. the probability density function, has the fol- lowing form F n n K N N n n x j j n j J ( ) ( ) , exp ( ) � � � � � � � � � � � � � � � � 1 1 1 0 � dx D K N x 0 � � � � � � � � , ln ( )
    keywords: avalanches; data; electron; fig; fractal; pattern; pulses; tests; ultraviolet
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        item: #70 of 1243
          id: ap-1145
      author: Hájek, J.
       title: Adaptation of an Evolutionary Algorithm in Modeling Electric Circuits
        date: 2010-01-01
       words: 2958
      flesch: 67
     summary: The following transformations were used for scaling and re-scaling: R R Ri i N norm � , (7) C C f RN N1 12norm � � , (8) L L f R N N 1 12norm � � . Values F � 0.8 and Cr � 0.5 do not always guarantee good convergence.
    keywords: adaptation; algorithm; auto; best; circuits; convergence; evolutionary; factor; fig; function; influence; insertion; loss; min; model; population; rand; results; solution; strategy; technical; test; tested; values; variables; variants; vector
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        item: #71 of 1243
          id: ap-1147
      author: Vyroubal, J.
       title: Using the Spindle Cooling Temperature as a Tool for Compensating the Thermal Deformation of Machines
        date: 2010-01-01
       words: 2296
      flesch: 64
     summary: This delay can cancel the thermal compensation of machine deformation. In terms of heat generation, the spindle is the major source of heat, and its thermal deformation is a ma- jor cause of overall machine deformation.
    keywords: analysis; axis; behavior; calculation; compensation; czech; deformation; fig; frame; heat; liquid; machine; measurement; min; multinomial; phase; place; reaction; sensors; spindle; technical; temperature; thermal; time; tool; type; university; vol
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        item: #72 of 1243
          id: ap-1149
      author: Večeř, P.; Kreidl, M.; Šmíd, R.
       title: Gearbox Condition Monitoring Using Advanced Classifiers
        date: 2010-01-01
       words: 4516
      flesch: 65
     summary: A B C D RMS1 (m/s2) 4.74 5.80 1.32 2.43 RMS2 (m/s2) 2.77 8.74 2.35 3.13 Skew1 (-) 0.35 0.31 �0.09 �0.17 Skew2 (-) 0.39 0.43 0.24 �0.63 Kur1 (-) 3.02 2.80 2.95 2.74 Kur2 (-) 2.16 2.19 2.56 2.99 Table 2: Typical values of input vectors for the 1st gear Fig. 4: Sammon’s visualization of the learned map after the sec- ond phase C A D B 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 Fig. 5: Distance between reference vectors neighboring neurons and the input vector for first-gear test mapping (lighter gray – shorter distance, darker gray – longer distance) distance between the reference vector neighboring units and input vector mapping is visualized in Fig. tj i ij i N � � � � � ( ) ( ) 2 0 1 , (1) where xi is the i-th element of input vector x in time t, wij is the i-th value of the weight vector for the j-th output neuron in time t.
    keywords: acta; adaptive; anfis; classification; classifier; condition; czech; data; decision; diagnostics; distance; features; fig; fuzzy; gearbox; gearboxes; house; http://ctn.cvut.cz/ap/; index; input; kohonen; layer; learning; map; mapping; network; neural; neuron; organizing; polytechnica; process; processing; publishing; quality; results; rms; rules; second; signal; som; surface; system; table; technical; test; tested; training; type; university; value; vector; vibration; vol
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        item: #73 of 1243
          id: ap-1151
      author: Mocková, D.
       title: Allocation and Location of Transport Logistics Centres
        date: 2010-01-01
       words: 3612
      flesch: 51
     summary: 1.3 Multiple criteria decision making Multiple criteria decision making involves modeling deci- sion-making situations containing a defined set of options and a set of criteria according to which the options will be evaluated. We have therefore merely outlined the theoretical side of using multiple criteria decision making and the solution methodology.
    keywords: algorithm; best; bit; costs; criteria; criterion; crossover; decision; decision making; depots; evaluation; evaluation criteria; field; fig; fitness; generation; importance; individual; location; logistics; making; methods; multiple; mutation; node; number; objectives; optimal; options; problem; quality; set; solution; subset; tasks; technical; transport; value
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        item: #74 of 1243
          id: ap-1153
      author: Pfof, Z.; Vaculík, P.
       title: Ultracapacitors Utilization for Automotive Applications
        date: 2010-01-01
       words: 2275
      flesch: 62
     summary: The ultracapacitor also has other advantages – it is capable of very fast charges and dis- charges, a millions of cycles without degradation, extremely low internal resistance or ESR, high output power, etc. Power losses of hard-switching vs. soft-switching Hard-switching is very widely used for power inverters, whereas soft-switching is used only in high frequency applications.
    keywords: boost; converter; current; drive; fig; fuel; hard; high; loss; mode; output; power; resonant; semiconductor; simulation; soft; switching; technical; transistor; turn; ultracapacitors; unit; university; value; voltage; zvs
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        item: #75 of 1243
          id: ap-1155
      author: Ficker, T.
       title: Statistical Distributions of Electron Avalanches and Streamers
        date: 2010-01-01
       words: 4446
      flesch: 60
     summary: Since the voltage pulses u were not calibrated against the number of electrons n, the resultant distribution curves w1 are dependent on u instead of n. Assuming linear proportionality u c n� � , the curve w u c u D1 0 1( ) ( )� � � � will preserve the same shape as w n1( ), i.e. they will both possess the same slope � �( )1 D . The populations of displaced ava- lanches of the j-th generation that reach the anode can easily be expressed: � �n d jd j, exp ( )� �� � .
    keywords: avalanches; case; czech; data; dimension; discharge; distribution; exp; ficker; fig; fitting; fractal; function; furry; gap; house; http://ctn.cvut.cz/ap/; linear; multiplication; n n; new; number; parameter; parent; pareto; pattern; photoionization; phys; polytechnica; populated; population; publishing; section; statistics; streamer; technical; university; value; vol; � �
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        item: #76 of 1243
          id: ap-1157
      author: Vaněček, D.; Klement, V.
       title: Electronic Education at the Faculty of Nuclear Sciences and Physical Engineering
        date: 2010-01-01
       words: 3070
      flesch: 58
     summary: First attempts to introduce e-learning appeared around the year 1999, and since then the number of projects dealing with this topic is increasing. This paper deals with the current issue of electronic education, and is based on a study of Internet support for education at the Faculty of Nu- clear Sciences and Physical Engineering at the Czech Technical University in Prague.
    keywords: chart; content; course; creation; czech; development; education; electronic; engineering; faculty; fig; form; internet; learning; lms; management; materials; nuclear; number; physical; results; sciences; students; study; subject; support; systems; teachers; technical; technologies; time; university; use; web
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        item: #77 of 1243
          id: ap-1159
      author: Amann, W.
       title: New Policies to Facilitate Affordable Housing in Central and Eastern Europe
        date: 2010-01-01
       words: 3733
      flesch: 52
     summary: Keywords: affordable housing, housing law, housing construction, CEE countries, Romania. and landlords, a Condominium Law, a Housing Manage- ment and Maintenance Law that covers all regulations in the field of housing operation, administration, accounting, main- tenance and refurbishment, and a Housing Subsidy Law that defines the legal basis for all activities of the state in (co-)financing housing construction, refurbishment, housing benefits and related activities. 3 Structured financing for PPP housing PPP housing legislation has been described as a strategy leading toward the establishment of a new business sector, targeting at affordable housing, particularly rental housing (UNECE 2005a, Lux 2006, Chiquier/Lea 2009).
    keywords: 2005; affordable; amann; approach; austria; basis; capital; cee; cent; condominiums; construction; costs; countries; development; dwellings; equity; european; finance; financing; framework; groups; h!fact; households; housing; iibw; income; interest; international; kemeny; law; legal; legislation; limited; loans; low; lpha; maintenance; major; market; model; mundt; new; policy; ppp; prices; private; public; refurbishment; regulations; rental; rental housing; rents; romanian; sector; social; state; subsidies; transition
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        item: #78 of 1243
          id: ap-1161
      author: Frank, H.
       title: Differences Between Doped and Undoped Zirconium Alloy Oxide Layers
        date: 2010-01-02
       words: 1810
      flesch: 58
     summary: 6: Temperature dependence of resistivity using data of I-Vcharacteristics, (each samplemeasured twice toprove re- producibility), activation energy of resistivity equal in both samples Fig. 7: Equal temperature dependence of mobility in both samples Fig. 8: Equal temperature dependence of carrier concentra- tion in both samples energy. Keywords: Zirconium alloy oxide layers, doped and undoped samples, I-V characteristics, temperature dependence of transport parameters, activation energy, injection and extraction currents and their time dependence, reduction semicon- ductor.
    keywords: acta; activation; characteristics; current; dependence; doping; equal; extraction; fig; figs; higher; injection; measured; mobility; oxide; resistivity; samples; temperature; undoped; voltage
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        item: #79 of 1243
          id: ap-1163
      author: Granja, C.; Linhart, V.; Platkevič, M.; Jakůbek, J.; Krouský, E.; Pospíšil, S.; Renner, O.; Slavíček, T.
       title: Active Detectors for Plasma Soft X-Ray Detection at PALS
        date: 2010-01-02
       words: 4344
      flesch: 57
     summary: Two types of detector systems have been adapted for this purpose: hybrid semiconductor pixel detectors, and fast scintillating detectors. Fig. 4: BaF2 detector with lead (Pb), Aluminum (Al) and Polyethylene (PE) shield Fig. 5: Shield assembly for BaF2 detector with lead (Pb), Aluminum (Al) and Polyethylene (PE) segments.
    keywords: acta; active; assembly; baf2; board; chamber; czech; data; detection; detector; direct; emi; energy; excitation; experimental; figure; granja; high; institute; interaction; interface; jakůbek; kev; laser; low; mail; medipix; noise; nuclear; operation; pals; phone; physics; pixel; plasma; polytechnica; pospíšil; power; prague; radiation; readout; republic; setup; shield; shielding; shot; single; system; target; time; usb; view; vol
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        item: #80 of 1243
          id: ap-1165
      author: Šulc, R.; Svačina, O.
       title: Flock Growth Kinetics for Flocculation in an Agitated Tank
        date: 2010-01-02
       words: 3875
      flesch: 58
     summary: For flocculation taking place in an agitated tank, Šulc and Ditl [2] recommend dimension- less flocculation time t∗F given by: t∗F = n · tF (3) where tF is flocculation time, and n is impeller rota- tional speed. Using the statistical hypothesis test, the fractal dimension was found to be independent of flocculation time, and the value Df2 =1.442 ±0.125 was determined as the average value for the given conditions.
    keywords: agitated; analysis; area; camera; correlation; data; df2; dfmax; dimension; dimensionless; experimental; fig; flocculant; flocculation; flock; fractal; generalized; growth; hypothesis; image; impeller; kaolin; kinetics; log; maximum; min; mixing; model; ntf; parameters; residual; size; table; tank; time; turbidity; value; vessel; vol; wastewater
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        item: #81 of 1243
          id: ap-1167
      author: Zahradnický, T.; Lórencz, R.
       title: FPU-Supported Running Error Analysis
        date: 2010-01-02
       words: 4417
      flesch: 64
     summary: 50 No. 2/2010 FPU-Supported Running Error Analysis T. Zahradnický, R. Lórencz Abstract A-posteriori forward rounding error analyses tend to give sharper error estimates than a-priori ones, as they use actual data quantities. One of such a-posteriori analysis – running error analysis – uses expressions consisting of twoparts; one generates the error and the other propagates input errors to the output.
    keywords: absolute; acta; analysis; approach; bound; calculated; case; class; computer; const; czech; data; department; double; error; error analysis; estimate; evaluation; extended; fldl; forward; fpu; instruction; line; load; point; polytechnica; posteriori; prague; precision; priori; result; rounded; rounding; running; sum; times; traditional; type; university; u|ŝ|; value; vol
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        item: #82 of 1243
          id: ap-1169
      author: Cisek, J.
       title: Injection and Combustion of RME with Water Emulsions in a Diesel Engine
        date: 2010-01-02
       words: 4590
      flesch: 53
     summary: 50 No. 2/2010 Injection and Combustion of RME with Water Emulsions in a Diesel Engine J. Cisek Abstract This paper presents ways of using the fully-digitised triggerable AVL VideoScope 513D video system for analysing the injection and combustion inside a diesel engine cylinder fuelled by RME with water emulsions. The research objects were: standard diesel fuel, rapeseed methyl ester (RME) and RME – water emulsions.
    keywords: acta; angle; bar; chamber; combustion; cylinder; diesel; diesel fuel; different; emissions; emulsion; engine; ester; exhaust; fig; flame; flow; fuel; fuel injection; fuel jet; gas; ignition; images; injection; jet; maximum; measurements; methyl; nox; polytechnica; pressure; process; rapeseed; rate; reduction; repeated; rme; rotation; rotation angle; rpm; shaft; shaft rotation; smoke; standard; standard diesel; temperature; vol; water; water emulsion; water fig
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        item: #83 of 1243
          id: ap-1171
      author: Dostál, M.; Petera, K.; Rieger, F.
       title: Measurement of Heat Transfer Coefficients in an Agitated Vessel with Tube Baffles
        date: 2010-01-02
       words: 6104
      flesch: 62
     summary: Dimensionless parameters are usually used to de- scribe the relation between heat transfer coefficients and other parameters, e.g. mixing intensity. [5] also measured heat transfer coefficients in a vessel with tube baffles.
    keywords: acta; agitated; agitated liquid; area; baffles; blade; case; coefficient; confidence; constant; cooling; correlation; czech; data; diameter; difference; figure; fit; flow; heat; heat transfer; heating; impeller; inlet; interval; k−1; liquid; mean; measured; media; method; model; number; nusselt; outlet; overall; parameters; polytechnica; power; probability; rate; region; results; rotation; specific; squares; sum; temperature; time; transfer; transfer coefficient; transient; tube; value; vessel; viscosity; vol; water
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        item: #84 of 1243
          id: ap-1173
      author: Koller, J.
       title: Treatment of Biogas for Use as Energy
        date: 2010-01-02
       words: 2669
      flesch: 51
     summary: 50 No. 2/2010 Treatment of Biogas for Use as Energy J. Koller Abstract The biogas generated in biogas plants offers significant potential for the production of energy from renewable energy sources. Biogas plants usually use co-generation units to generate electricity and heat.
    keywords: acta; anaerobic; animal; biogas; biogas plants; biomethane; co2; compounds; content; czech; degradable; efficiency; electricity; energy; fermentation; fermentor; generation; heat; heating; high; hydrogen; materials; means; operation; optimum; organic; plant; polytechnica; production; renewable; republic; separation; significant; substances; substrates; sulphide; unit; utilization; vol; wastes; water
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        item: #85 of 1243
          id: ap-1175
      author: Sajbrt, V.; Rosol, M.; Ditl, P.
       title: A Comparison of Distillery Stillage Disposal Methods
        date: 2010-01-02
       words: 4268
      flesch: 60
     summary: Keywords: disposal of distillery stillage, economic comparison, energy requirements. % Table 4: All operating costs of transportation to a biogas plant Total neutralization costs: 170 EUR/day 7.0 % Total cost – electric energy for centrifuge: 60 EUR/day 2.5 % Total transport costs of stillages: 1 810 EUR/day 74.5% Total transport costs of digestate to the fields: 390 EUR/day 16.0 % Total price of generated electric energy from biogas: −1 020
    keywords: acta; biogas; centrifuge; chemical; combustion; concentration; condensate; content; costs; day; disposal; distillery; dry; dryer; drying; electric; energy; ethanol; eur; evaporation; feeding; fermentation; fig; high; line; livestock; main; mash; mass; method; operating; operating costs; organic; plant; polytechnica; pretreatment; process; production; stillage; suitable; total; total operating; transport; treatment; vol; waste
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        item: #86 of 1243
          id: ap-1177
      author: Zueva, G. A.; Padokhin, V. A.; Ditl, P.
       title: Stochastic Models of Solid Particles Grinding
        date: 2010-01-02
       words: 3438
      flesch: 58
     summary: Mathematical models of disintegration kinetics are classified on the basis of the class of Markov process that they belong to. 1 Introduction Alongside the traditional approach, based on phe- nomenological introduction of the mechanics of a con- tinuous medium into a description of chemical en- gineering processes, in particular, milling processes, stochastic approaches, particularly those based on Markov processes, have become widely applied.
    keywords: calculated; chemical; conditions; continuous; density; device; differential; discrete; distribution; equation; experimental; grinder; grinding; initial; kinetics; markov; material; mathematical; matrix; milling; models; moment; particle; probabilities; probability; process; processes; shock; size; states; stochastic; system; technology; theoretical; theory; time; transition; vector; vol; π(0; π(t
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        item: #87 of 1243
          id: ap-1179
      author: Azcárraga, J. A. de; Izquierdo, J. M.
       title: Topics on n-ary Algebraic Structures
        date: 2010-01-03
       words: 4238
      flesch: 84
     summary: 50 No. 3/2010 [3] de Azcárraga, J. A., Pérez-Bueno, J. C.: Higher- order simple Lie algebras,Commun. For semisimple Lie algebras, Whitehead’s lemma states that H20(g)= 0, H 2 ad(g, g)= 0.
    keywords: a=1; adx; algebras; ary; azcárraga; bracket; central; cohomology; deformations; extensions; fa1; fas; filippov; fn−1; fundamental; generalized; identity; leibniz; lemma; lie; math; nambu; p+1∑; phys; poisson; semisimple; simple; structures; trivial; vol; xn−1; xp+1; x̂j; α1(x
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        item: #88 of 1243
          id: ap-1181
      author: Bandos, I. A.
       title: On multiple M2-brane model(s) and its N=8 Superspace Formulation(s)
        date: 2010-01-03
       words: 6229
      flesch: 70
     summary: Here we speak in terms of the case with M �= N, which is terminologically simpler, but all our arguments clearly also apply for M = N. The Grassmann spinorial covariant derivatives DIα in (51) includes the gaugegroup SU(M)×SU(N) con- nection and obey the algebra {DIα, D J β} = iγ a αβ δIJDa .8), and a Spin(8) 8s- plet of Majorana anticommuting Sl(2;R) spinor fields ψA (A = 1, . . .
    keywords: abjm; acta; action; algebra; bagger; bandos; blg; brackets; branes; chern; complex; covariant; d3y; dimensional; dαȧ; equation; fields; filippov; formalism; formulation; gauge; hep; identities; invariant; jhep; lagrangian; lambert; lcs; lie; like; matrix; mij; model; motion; multiple; phys; plet; polytechnica; potential; pre; pure; respect; scalar; sdiff3; shell; simons; spinor; strength; superfield; superspace; symmetry; system; terms; theories; theory; use; vector; vol; wȧḃ
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        item: #89 of 1243
          id: ap-1183
      author: Fedoruk, S.
       title: Superconformal Calogero Models as a Gauged Matrix Mechanics
        date: 2010-01-03
       words: 4323
      flesch: 77
     summary: (2.19) 3 N =2 superconformal Calogero model N = 2 supersymmetric generalization of the sys- tem (2.1) is described by • the even hermitian (n × n)-matrix superfield Xba(t, θ, θ̄), (X) + = X , a, b =1, . . . i(xa − xb)p b a − i(pa − pb)x b a + (2.12)
    keywords: + +; acta; action; bosonic; brackets; calogero; case; constraints; d(2,1;α; dirac; d̄x; e2v; fields; following; gauge; hermitian; invariant; ivanov; jhep; lechtenfeld; lett; matrix; mechanics; model; multiplets; nucl; phys; physical; polytechnica; quantum; rev; superconformal; superfield; supermultiplets; system; term; transformations; u(n; vol
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        item: #90 of 1243
          id: ap-1185
      author: Gazeau, J. P.; Baldiotti, M. C.; Gitman, D. M.
       title: Coherent State Quantization and Moment Problem
        date: 2010-01-03
       words: 3929
      flesch: 72
     summary: The average of the random variable n �→ xn is 〈xn〉 = t. Contrariwise to the standard case X = N, the continuous (gammalike) distribution t �→ 1 E(t) tn xn! with parameter n is not a probabilitydistributionwith respect to the Lebesgue measure dt:∫ (ii) The map C � z �→ |vz〉 is continuous (continu- ity).
    keywords: acta; classical; coherent; complex; corresponding; d2z; def; distribution; f(z; field; gazeau; j.-p; measure; moment; momentum; motion; operator; parameter; particle; phase; phys; plane; polytechnica; probability; problem; quantization; resolution; sequence; space; standard; states; unity; vol; xn+1; |en; |z0; |z|2
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        item: #91 of 1243
          id: ap-1187
      author: Kerner, R.
       title: Lorentz and SU(3) Groups Derived from Cubic Quark Algebra
        date: 2010-01-03
       words: 3833
      flesch: 63
     summary: The quarks transform with matrices U (or Ū for the anti-quarks), but these matrices are not unitary: their determinants are equal to j2 or j, respectively. (16) Matrix Ū is the complex conjugate of matrix U, and det(Ū) is equal to j.
    keywords: algebra; anti; ḃa; case; choice; combinations; complex; components; conjugate; covariance; cubic; equal; expressions; following; form; fundamental; generators; grade; group; independent; indices; like; linear; lorentz; matrices; matrix; matter; non; products; properties; quarks; relations; representation; similar; space; su(3; ternary; time; values; θaθb
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        item: #92 of 1243
          id: ap-1189
      author: Mickelsson, J.
       title: From Gauge Anomalies to Gerbes and Gerbal Representations: Group Cocycles in Quantum Theory
        date: 2010-01-03
       words: 4223
      flesch: 71
     summary: Then we investigate how group cohomology of degree 3 comes from a prolongation problem for group extensions and we discuss its role in quantumfield theory. In the case of Lie groups, there is a corresponding Lie algebra cocycle representing a class in H3(g, a), where a is the Lie algebra of a.
    keywords: abelian; acta; action; acts; algebra; bundle; c(x; case; central; class; cocycle; cohomology; compact; complex; condition; corresponding; degree; element; example; extension; field; fock; form; function; gauge; group; hilbert; in(b; left; lie; lie algebra; loop; math; operator; phys; point; polytechnica; projective; quantization; quantum; representation; space; theory; vector; vol
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        item: #93 of 1243
          id: ap-1191
      author: Sorokin, D.
       title: Higher-Spin Triplet Fields and String Theory
        date: 2010-01-03
       words: 4203
      flesch: 68
     summary: In particular, I would like to discuss a sys- tem of higher spin fields which are called triplets. Quartet unconstrained formulation for massless higher spin fields, Nucl.
    keywords: acta; action; as−; bosonic; brst; case; condition; connection; consistent; dxm; equations; fermionic; fields; formulation; frame; free; gauge; geometrical; gravity; hep; higher; higher spin; indices; interactions; like; limit; local; massless; nucl; particles; phys; physical; polytechnica; problem; reducible; space; spin; spin fields; states; string; symmetric; symmetry; tensionless; theory; torsion; transformations; triplet; vasiliev; vielbein; vol
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        item: #94 of 1243
          id: ap-1193
      author: Todorov, I.
       title: Gause Symmetry and Howe Duality in 4D Conformal Field Theory Models
        date: 2010-01-03
       words: 5599
      flesch: 67
     summary: 50 No. 3/2010 [35] Nikolov, N. M., Rehren, K.-H., Todorov, I. T.: Partial wave expansion and Wightman positiv- ity in conformal field theory, Nucl. For D = 4, infinite dimensional Lie algebras are generated by bifields Vij(x1, x2) which naturally arise in the OPE of a (finite) set of (say, her- mitean, scalar) localfields φi ofdimension d(> 1): (x212) d φi(x1)φj(x2)= Nij + x 2 12 Vij(x1, x2)+ O((x 2 12) 2) , x12
    keywords: acta; algebras; bifields; bilocal; central; cft; chiral; commun; commutator; compact; conformal; correlation; corresponding; dimensional; dual; energy; fact; fields; fock; free; functions; gauge; group; harmonic; hep; higher; howe; infinite; invariant; irreducible; kac; l(f; left; lie; local; massless; math; nikolov; number; pair; phys; physics; point; polytechnica; positive; product; quantum; real; reductive; rehren; remark; representations; scalar; sect; set; space; superselection; tensor; theory; time; todorov; u(n; unitary; variables; vertex; vol; weight; ρ13; ρ24
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        item: #95 of 1243
          id: ap-1195
      author: Znojil, M.
       title: Time-Dependent and/or Nonlocal Representations of Hilbert Spaces in Quantum Theory
        date: 2010-01-03
       words: 4395
      flesch: 56
     summary: Vice versa, once the Hamilto- nian H proves solvable in Hilbert space H(T), we may rely upon the availability of the closed solutions of the underlying Schrödinger equations and on the related specific spectral representations of the necessary oper- ators (cf. The rectification transition between Hilbert spaces H(T) and H(F) is tractable as an equivalence transformation under this assumption [10].
    keywords: acta; arxiv; certain; complex; context; coordinates; cryptohermitian; dependent; dyson; equations; equivalence; evolution; form; friendly; functions; h(f; h(p; h(s; h(t; hamiltonian; hilbert; hilbert space; lett; math; mechanics; metric; models; new; non; nontrivial; notation; nuclear; observables; operators; paper; phys; physical; physics; polytechnica; potentials; quantum; representations; review; role; scattering; space; standard; state; symmetric; theory; time; tobogganic; unitary; use; vector; vol; wave; znojil
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        item: #96 of 1243
          id: ap-1197
      author: Bičák, J.
       title: Gravitomagnetism (extended abstract)
        date: 2010-01-03
       words: 926
      flesch: 46
     summary: One has to realize that the physical effects associatedwith Mach’s ideas, e.g. the “dragging of inertial frames” (“gravitomag- netic effects”) have a global character and require spe- cial coordinate systems, special gauges. In more recent papers [5, 6], we show that within General Relativity, any general statement of Mach’s principle that attributes all dragging of inertial frames solely to the distribution of energy and momentum of matter as the originof inertia is false: Gravitomagnetic effects are also caused by gravitational waves.
    keywords: bičák; distribution; effects; energy; frame; gauges; general; gravitational; gravitomagnetic; gravity; inertial; katz; mach; momentum; pages; principle; universe; waves
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        item: #97 of 1243
          id: ap-1199
      author: Caprini, I.; Fischer, J.; Vrkoč, I.
       title: Asymptotic Power Series of Field Correlators
        date: 2010-01-03
       words: 2992
      flesch: 72
     summary: [6] Caprini, I., Fischer, J., Vrkoč, I.: J. Phys. 50 No. 3/2010 Asymptotic Power Series of Field Correlators I. Caprini, J. Fischer, I. Vrkoč Abstract We address the problem of ambiguity of a function determined by an asymptotic perturbation expansion.
    keywords: a(s; analyticity; asymptotic; b(u; borel; caprini; contour; convergence; czech; disc; expansion; f(z; fischer; form; function; g(r; lemma; perturbation; phys; physics; plane; qcd; rev; series; singularities; special; vol; watson
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        item: #98 of 1243
          id: ap-1201
      author: Doebner, H.-D.
       title: On Global and Nonlinear Symmetries in Quantum Mechanics
        date: 2010-01-03
       words: 4060
      flesch: 58
     summary: A discussion of these relations is the topic of my paper: The global structure of the set {Q(M, K)} of quantizations of the kinematics in aHilbert space H is connected with a nonlinear representation of a matrix group G which leads also to a quantization of other observables through nonlinear operators. With (21) one obtains an already mentioned non- linear realization of G(3) with linear generators of the Galilei-algebrawith the exception of the freeHamilto- nian which appears as nonlinear operator.
    keywords: -d(m; algebra; b(m; borel; case; classical; complex; c∞(m; differential; doebner; domain; e.g.; ect0(m; esa; global; group; h.-d; hermitean; k(m; l2(m; lie; maps; math; model; n[ψ; nonlinear; observables; operators; order; phys; physical; position; properties; q(m; quantization; quantum; representation; set; smooth; structure; symmetry; system; tangent; vol
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        item: #99 of 1243
          id: ap-1203
      author: Engelen, J.
       title: Physics on the Terascale (extended abstract)
        date: 2010-01-03
       words: 951
      flesch: 50
     summary: In addition, the huge amounts of data of 15 PetaBytes per year required a new approach to com- puting: the now operational worldwide LHC comput- ing GRID (wLCG), also serving as a platform for ap- plications outside high energy physics. The LHC is a marvel of technology in all its facets, crowned by the super- conducting dipole magnets.
    keywords: additional; boson; collider; energy; field; helium; higgs; ingredient; large; lhc; magnets; marvel; mechanism; new; order; september; system; technology; terascale; tev
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        item: #100 of 1243
          id: ap-1205
      author: Furlan, P.; Petkova, V. B.; Stanishkov, M.
       title: A Finite Liouville Dress for c
        date: 2010-01-03
       words: 3053
      flesch: 67
     summary: β1 − σ1 − σ2 + b 2 ) Indeed they satisfy the charge conservation conditions (Q − β3)+β2+β1 = Q and β3+(Q − β2 − b/2)+(β1 − b/2)= Q, respectively, and their residua equal 1/2π (to agree with the normalisation in [9]).
    keywords: acta; boundary; case; charges; correlator; corresponding; cyclic; degenerate; dual; equation; expression; factor; field; formula; g(−)(σ2; general; hep; liouville; matter; non; pentagon; phys; point; polynomials; polytechnica; reflection; representations; string; tachyon; values; vol; σ3,σ2,σ1
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        item: #101 of 1243
          id: ap-1207
      author: Ivanov, E.
       title: M2-Branes in N = 3 Harmonic Superspace
        date: 2010-01-03
       words: 3396
      flesch: 67
     summary: • Constructing the full effective actions of M2- branes in terms of the N = 3 superfields (with a Nambu-Goto action for scalar fields in the case of oneM2-braneand its nonabeliangeneralization for N branes). [19] Buchbinder, I. L., Ivanov, E. A., Lechtenfeld, O., Pletnev, N. G., Samsonov, I. B., Zupnik, B. M.: Quantum N = 3, d = 3 Chern-Simons Matter Theories in Harmonic Superspace, JHEP 0910 (2009) 075, arXiv:0909.2970
    keywords: + +; 3,3d; abjm; action; ads; algebra; blg; branes; case; cft; chern; correspondence; energy; fields; formulation; gauge; group; harmonic; hep; hidden; jhep; limit; low; matter; phys; scalar; shell; simons; superconformal; superfield; superspace; supersymmetry; theories; theory; u(n
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        item: #102 of 1243
          id: ap-1209
      author: Jenni, P.
       title: The ATLAS Experiment Entering into Operation: Overview, Motivation and Status of the Project (extended abstract)
        date: 2010-01-03
       words: 420
      flesch: 51
     summary: 50 No. 3/2010 The ATLAS Experiment Entering into Operation: Overview, Motivation and Status of the Project P. Jenni The Large Hadron Collider LHC at the European Laboratory for Particle Physics CERN near Geneva will deliverparticle collisionsat thehighest energyever achieved in a laboratory. ATLAS will address questions like: Why do particles have a mass, What is the non-visible dark matter in the Universe, Are there more than four dimensions in Nature, and What are the smallest building blocks of matter?
    keywords: atlas; cern; collaboration; construction; jenni; laboratory; large; niederle; operation; overview
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        item: #103 of 1243
          id: ap-1211
      author: Niederle, J.; Nikitin, A. G.; Kuriksha, O.
       title: Maxwell-Chern-Simons Models: Their Symmetries, Exact Solutions and Non-relativistic Limits
        date: 2010-01-03
       words: 4098
      flesch: 71
     summary: In contrast to the CFJ model, ourmodels are rela- tivistically invariant and include this model as a par- ticular sector corresponding to constant solutions for vector field F μ. The MCS model in the (1+3)-dimensional Minkovski space Let us start with the following Lagrangian L=− 1 4 Fμν F μν − 1 2 FμF μ − κ 4 εμνρσ F μAν F ρσ + ejμA μ + qj4A 4. (3) Here the Greek indices run over the values 0,1,2,3, Aν and F μν = ∂μAν − ∂ν
    keywords: acta; additional; axion; cfj; constant; contraction; corresponding; electrodynamics; equations; exact; field; following; form; fμν; galilean; galilei; gauge; generators; group; invariant; lagrangian; lie; limit; lorentz; maxwell; model; nikitin; non; phys; poincaré; polytechnica; possible; potential; related; relativistic; representation; solutions; space; symmetries; symmetry; system; tensor; variables; vector; vol; w.r.t
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        item: #104 of 1243
          id: ap-1213
      author: Schnabl, M.
       title: Algebraic Solutions in Open String Field Theory – a Lightning Review
        date: 2010-01-03
       words: 4972
      flesch: 68
     summary: Let us describe string field theory states as linear combina- tions of surfaces with vertex operator insertions, such as inFig. 50 No. 3/2010 Algebraic Solutions in Open String Field Theory – a Lightning Review M. Schnabl Abstract In this short paper we review basic ideas of string field theory with the emphasis on the recent developments.
    keywords: acta; action; analytic; arxiv; background; cft; classical; closed; distributions; energy; erler; f(k; f(z; field; field theory; functions; gauge; general; geometric; ghost; hep; infinite; inverse; laplace; non; open; operator; o′c; perturbative; physics; polytechnica; product; rez; safe; sen; solution; space; star; states; string; string field; surface; tachyon; theories; theory; transform; trivial; vacuum; vertex; vol; witten; worldsheet
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        item: #105 of 1243
          id: ap-1215
      author: Sissakian, A.
       title: The Science Policy of the Joint Institute for Nuclear Research
        date: 2010-01-03
       words: 2945
      flesch: 45
     summary: Prime Minister of Czechia J. Paroubek congratu- lated the audience on the 50th anniversary of JINR and noted the great role of the Dubna international physics centre in founding and developing nuclear physics in all countries – JINR Member States, in- cluding Czechoslovakia and Czechia. JINR has a huge foundation based on three “pillars”: • great experience in nuclear physics research and the world-wide recognized traditions of its scien- tific schools • a large and unique park of basic facilities for fun- damental and applied research • the status of an international intergovernmental organization For over 50 years of JINR’s existence, first-class theoretical and experimental researchprogrammes im- plemented at JINR have led to a significant scientific output in fundamental nuclear science.
    keywords: activities; basic; centre; cern; collaboration; complex; cooperation; countries; czech; czechia; detector; development; dubna; elements; energy; experimental; facilities; fundamental; general; heavy; high; innovation; institute; international; jinr; joint; large; matter; member; new; nica; nuclear; order; phase; physics; policy; polytechnica; priority; programme; projects; reactor; research; role; russian; sciences; scientific; special; states; strategic; studies; university; vol; year
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        item: #106 of 1243
          id: ap-1217
      author: Bauer, J.
       title: Single Phase Voltage Source Inverter Photovoltaic Application
        date: 2010-01-04
       words: 2466
      flesch: 64
     summary: Keywords: voltage source inverter, L-C-L filter, hysteresis controller, pulse width modulation. PWM control is used for this purpose.
    keywords: area; calculated; connected; control; controller; converter; current; cycle; design; duty; fig; filter; frequency; grid; hysteresis; inductance; inverter; l filter; mode; network; output; phase; power; pwm; resistor; results; solar; source; supply; switching; system; virtual; voltage
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        item: #107 of 1243
          id: ap-1219
      author: Behrens, A.; Röllinger, H.
       title: Analysis of Feature Point Distributions for Fast Image Mosaicking Algorithms
        date: 2010-01-04
       words: 3861
      flesch: 57
     summary: However, in the case of small and sparse sets of feature points of fixed size, suitable for real-time image mosaicking algorithms, a uniform spatial feature distribution across the image becomes relevant. While in many natural image scenes feature points can usually be extracted across the whole image, spatial distribution is often a relevant consideration for medical images, e.g. en- doscopic images of the internal urinary bladder wall.
    keywords: acta; algorithms; anms; bladder; computer; contrast; data; descriptors; different; distribution; errors; feature; feature points; fig; filter; global; high; homography; image; interest; list; local; matching; mosaicking; number; partitioning; points; polytechnica; radius; real; regions; registration; response; results; robust; sample; section; selection; sequence; set; sets; spatial; suppression; surf; time; tree; values; vision; vol
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        item: #108 of 1243
          id: ap-1221
      author: Dirix, M.; Koch, O.
       title: Conductivity Measurements of Silverpastes
        date: 2010-01-04
       words: 2783
      flesch: 58
     summary: 3: Transmission measurement of the T-Resonator Structure Table 1: Electrical conductivity measurements using the T-resonator structure Sample σ 50 No. 4/2010 Table 2: Electrical conductivity measurements using the dielectric resonator Sample σ
    keywords: carrier; circuit; conducting; conductivity; conductor; copper; dielectric; electrical; factor; frequency; ghz; high; line; losses; material; measurements; metal; order; pastes; possible; quality; resistance; resonance; resonator; sample; structure; stub; surface; transmission; unloaded; vol; wavelength
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        item: #109 of 1243
          id: ap-1223
      author: Drnek, K.
       title: Prague’s Sewerage System in the 1930’ and the General Sewerage Project (1933–1936)
        date: 2010-01-04
       words: 3340
      flesch: 73
     summary: [4] Vondráček, B.: Brief survey about the general conclusion of the committee accredited to judge projects in the competition for new sewage plants for the capital city of Prague. Keywords: sewerage, sewage plant, Máslo-Douda project, Řež, competition, projects, Dorr, Čistá půda, Roztoky.
    keywords: acta; area; biological; citizens; city; cleaning; competition; dorr; douda; group; ideas; ing; island; location; mechanical; mil; new; old; pipelines; plant; polytechnica; prague; problem; process; project; river; roztoky; sand; sewage; sewage plant; sewerage; sludge; survey; system; tanks; treatment; vol; water
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        item: #110 of 1243
          id: ap-1225
      author: Faltin, P.; Behrens, A.
       title: Projective 3D-reconstruction of Uncalibrated Endoscopic Images
        date: 2010-01-04
       words: 3716
      flesch: 64
     summary: [11] Pollefeys, M.: Self-calibration and metric 3D re- construction from uncalibrated image sequences. The radial distortion is modeled by the function �xd = �z + λ(r) · (�xu − �z) (1) with distorted point �xd, center of distortion �z, a func- tion depending on the radius λ(r) and corrected point �xu.
    keywords: 4/2010; acta; advanced; algorithm; bladder; camera; computer; correspondences; data; different; distortion; endoscopic; epipolar; error; features; fig; fundamental; geometry; germany; image; matching; matrices; matrix; method; number; point; polytechnica; process; projective; ransac; reconstruction; results; scene; second; section; sequences; set; tensor; trifocal; uncalibrated; view; vol
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        item: #111 of 1243
          id: ap-1227
      author: Fikejz, F.
       title: Subjective Evaluation of Audiovisual Signals
        date: 2010-01-04
       words: 3617
      flesch: 66
     summary: Keywords: subjective test, audiovisual signal quality, compression, JPEG, MP3. As subjective test is a type of psychometric test in which the subjects evaluate, in our case, sound and image quality in a defined way.
    keywords: acta; anova; audiovisual; average; best; better; bit; case; combination; compressed; compression; evaluation; experienced; fig; image; jpeg; mean; method; mp3; music; original; polytechnica; processing; quality; rate; rating; reference; results; samples; scale; second; signal; simple; situation; sound; subjective; subjects; tab; table; test; types; values; variance; vol; wav; worst
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        item: #112 of 1243
          id: ap-1229
      author: Grabowski, M.; Buchenauer, A.
       title: Valve Concepts for Microfluidic Cell Handling
        date: 2010-01-04
       words: 3682
      flesch: 57
     summary: The first valve geometry (valve type 1) was built up with an interrupted microfluidic chan- 41 Acta Polytechnica Vol. The second valve geometry (valve type 2) was designed without the in- tersection in the fluidic channel, using a microfluidic channel with just a rectangular cross-section (Fig. 3).
    keywords: 4/2010; aachen; acta; ansys; applications; bar; cell; chamber; channel; chip; closed; cross; engineering; fig; flow; fluidic; fluidic channel; fusion; geometry; handling; inlet; layer; lines; liquid; membrane; microfluidic; negative; open; pdms; pneumatic; pneumatic layer; polytechnica; pressure; results; section; series; simulation; state; suitable; system; test; type; user; valve; valve type; vol
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        item: #113 of 1243
          id: ap-1231
      author: Hajný, O.; Farkašová, B.
       title: A Study of Gait and Posture with the Use of Cyclograms
        date: 2010-01-04
       words: 2236
      flesch: 63
     summary: Keywords: simulation, human body model, walking, artificial intelligence, gait angles, bilateral cyclograms. 1 Methods For a study of gait angles, we decided to use meth- ods based on measurements of the geometric proper- ties ofbilateral cyclograms(also calledangle-angledia- grams).
    keywords: 4/2010; acta; angles; biomedical; body; camera; coefficients; ctu; cyclograms; data; engineering; fig; function; gait; hip; human; joints; knee; markers; methods; model; movement; polytechnica; program; research; segments; space; study; system; use; vol; walking; weight
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        item: #114 of 1243
          id: ap-1233
      author: Hübner, J.
       title: Capillary Discharge Parameter Assessment for X-ray Laser Pumping
        date: 2010-01-04
       words: 2030
      flesch: 64
     summary: For each calculation, we listed the parameter data, information about the maximum value and the time of reaching gain, the pinch time (the time when the maximum of electron density Ne is reached). We will plot the curve for an individual quantity, such as electron density, electron temperature, inversion of population, and gain. Fig.
    keywords: capillary; carbon; cm−3; current; data; density; discharge; dt|t=0; electron; fig; function; gain; gmax; imax; initial; laser; maximum; parameters; pinch; pulse; temperature; time
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        item: #115 of 1243
          id: ap-1235
      author: Müntjes, J.; Meine, S.; Flach, E.; Görtz, M.; Hartmann, R.; Schmitz-Rode, T.; Trieu, H. K.; Mokwa, W.
       title: Assembly of a Pulmonary Artery Pressure Sensor System
        date: 2010-01-04
       words: 1678
      flesch: 48
     summary: Her work focuses on assembly technologies in the field of pressure sensor systems in medical technology. Keywords: heart insufficiency, pressure sensor, microsystems technology, assembly.
    keywords: aachen; artery; assembly; capacitive; carrier; catheter; chips; electrical; electronics; element; engineering; fig; germany; heart; hospitalization; institute; metal; pressure; pressure sensor; process; pulmonary; sensor; silicon; stress; system; temperature; tube; university
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        item: #116 of 1243
          id: ap-1237
      author: Najman, R.
       title: Nonlinear Aspects of Heat Pump Utilization
        date: 2010-01-04
       words: 2109
      flesch: 65
     summary: 2: Air, water, soil to water heat pumps [*2] 2 Input values and equations 2.1 Subject for testing our mathematical model Our test subject is a house with a surface area of 400 m2 (surfaces with applicable thermal insulation). Keywords: heat pumps, thermal mass of an object, coefficient of performance.
    keywords: air; cop; equations; fig; heat; heating; input; insulation; losses; mass; model; outdoor; output; power; pump; soil; source; temperature; thermal; variant; water; year
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        item: #117 of 1243
          id: ap-1239
      author: Pavlátka, P.
       title: Option Derivatives in Electricity Hedging
        date: 2010-01-04
       words: 3264
      flesch: 59
     summary: 50 No. 4/2010 Option Derivatives in Electricity Hedging P. Pavlatka Abstract Despite the high volatility of electricity prices, there is still little demand for electricity power options, and the liquidity on the power exchanges of these power derivatives is quite low. Keywords: option derivatives, electricity hedging, evaluation models, electricity prices.
    keywords: acta; case; cash; commodity; contract; convenience; daily; demand; derivatives; electricity; end; exercise; fig; formula; forward; futures; generators; hedge; hedging; important; increases; long; margin; market; mwh; options; polytechnica; positions; power; price; pricing; results; risk; short; spot; strike; supply; term; value; volatility; yield
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        item: #118 of 1243
          id: ap-1241
      author: Scheirich, J.
       title: The DEPFET Mini-matrix Particle Detector
        date: 2010-01-04
       words: 2254
      flesch: 59
     summary: The DEPFET detector will be integrated as an inner detector in the BELLE II and ILC experiment. Keywords: DEPFET, BELLE II, ILC, silicon pixel detector.
    keywords: acta; amplifiers; channel; charge; clear; contact; control; current; czech; daq; depfet; detector; drain; electrons; fig; frame; gate; internal; internal gate; matrix; measuring; mini; monitor; mosfet; noise; particle; physics; pixel; polytechnica; potential; readout; sensor; signal; small; substrate; system; university; voltage
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        item: #119 of 1243
          id: ap-1243
      author: Tučan, M.; Žák, P.
       title: Influence of Climatic Cycles on Properties of Leadfree Solders
        date: 2010-01-04
       words: 1444
      flesch: 59
     summary: Keywords: climatic tests, shocks, leadfree solder. Apart from problems such as tin corro- sion and faster oxidation due to higher temperature, which appear in the production phase, there is the matter of the long-term behavior of leadfree solders.
    keywords: change; climatic; cold; conditions; electrical; fig; figure; heat; joints; leadfree; moisture; pest; properties; resistance; results; shocks; solder; surface; temperature; tests; thermal; tin; use
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        item: #120 of 1243
          id: ap-1245
      author: Uřičář, T.
       title: Parameter-Invariant Hierarchical Exclusive Alphabet Design for 2-WRC with HDF Strategy
        date: 2010-01-04
       words: 4964
      flesch: 56
     summary: The output code- word and its code symbols are cR and cR. These are mapped into signal space channel symbols v ∈ AR and signal space codewords v with the codebook v ∈ CR andare broadcast to destinations A and B. (1, −1) Fig. 5: Channel symbol mapper (As) and the resulting constellation space patterns (U′iRe) for the example of PI- HXA Here we show an example of a two-dimensional 4- ary (|As| = |Ac| = 4) PI-HXA, designed according to the assumptions given in this section.
    keywords: acta; alphabet; approach; boundaries; capacity; case; channel; classical; code; complex; constellation; criteria; data; decision; design; example; exclusive; fig; forward; hdf; hierarchical; hxa; hxa design; hxc; information; invariant; layered; mac; mapper; mode; node; parameter; parametric; parametrization; patterns; phase; phxc; polytechnica; processing; received; region; relay; signal; simple; solution; source; space; strategy; symbols; system; um1; useful; vol; way; wireless; wrc
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        item: #121 of 1243
          id: ap-1247
      author: Valentová, M.
       title: Barriers to Energy Efficiency – Focus on Transaction Costs
        date: 2010-01-04
       words: 5280
      flesch: 56
     summary: Energy efficiency transaction costs can be divided into four main stages in which transaction costs can occur: the planning phase, the implementation phase, monitoring phase and the verification phase (Ta- ble 1). One factor is the actual share of energy costs in total costs, while an- other factor is the development of energy prices.
    keywords: access; acta; actors; audit; authors; barriers; capital; case; consumption; costs; decision; demand; development; different; discount; economic; efficiency; empirical; energy; energy efficiency; energy prices; equipment; future; households; implementation; important; income; information; instruments; investment; lack; lead; level; likely; limited; lower; main; making; market; measures; mundaca; phase; policy; polytechnica; potential; prices; problem; programme; project; rate; related; risk; savings; sector; services; size; source; studies; study; time; transaction; transaction costs; vol
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        item: #122 of 1243
          id: ap-1249
      author: Vaněk, O.
       title: Agent-based Simulation of the Maritime Domain
        date: 2010-01-04
       words: 3462
      flesch: 49
     summary: The configuration of the simulation (e.g. the num- ber of vessels, the files containing vessel andGIS data, etc.) as well as the parameters of each of the mod- ules is specified in a single Groovy3 script file4. 50 No. 4/2010 Table 1: Main parameters of different types of vessel agents.
    keywords: 4/2010; acta; agent; algorithms; analysis; architecture; behavior; configuration; control; data; date; description; domain; earth; environment; fishing; general; geographical; google; information; list; main; maritime; model; modules; operational; output; parameters; piracy; pirate; planner; planning; platform; polytechnica; real; route; section; ship; simulated; simulation; simulation step; simulation time; size; somali; state; step; time; traffic; transport; vessel; vol; world; zones
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        item: #123 of 1243
          id: ap-1251
      author: Verteletskaya, E.; Sakhnov, K.
       title: Voice Activity Detection for Speech Enhancement Applications
        date: 2010-01-04
       words: 2713
      flesch: 64
     summary: 1. VAD design involves extracting acoustic features that can appropriately indicate the probability of tar- get speech signals existing in observed signals. The performance of the proposed VAD algorithm is tested on real speech signals.
    keywords: 4/2010; acta; active; activity; algorithm; audio; band; czech; decision; detection; detector; energy; estimation; features; fig; frame; frequency; high; input; led; low; noise; output; performance; periodicity; polytechnica; presence; processing; ratio; regions; short; signal; silence; speech; threshold; time; total; vad; value; voice; vol
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        item: #124 of 1243
          id: ap-1253
      author: Vrbová, B.; Víšek, L.
       title: Simulation of Hyperthermic Treatment Using the Matrix of Stripline Applicators
        date: 2010-01-04
       words: 2177
      flesch: 47
     summary: In this paper we compare the SAR distribution in a cylindrical homogeneous agar phantom (which has similar characteristics to biological tissue) and in an anatomically based biological model of the femur (which has been developed from a computer tomography scan) using a matrix of two applicators of the same type. In our case, the applicator is filled with distilled water, because 70 % of biological tissue consists of water.
    keywords: 4/2010; acta; agar; applicators; biological; case; cells; dielectric; distribution; dosimetry; electromagnetic; energy; femur; field; fig; homogeneous; hyperthermia; length; matrix; microwave; model; numerical; phantom; planning; polytechnica; prague; sar; stripline; temperature; tissue; treatment; tumor; type; vol
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        item: #125 of 1243
          id: ap-1255
      author: Ambrož, P.
       title: Tilings Generated by Ito-Sadahiro and Balanced (-ß)-numeration Systems
        date: 2010-01-05
       words: 3137
      flesch: 80
     summary: On the other hand there are five distances between consecutive elements in the set Z−β, namely {1, β2 − β − 1, β − 1, β, β2 − β}. 6 Examples of tilings In the rest of the paper we provide several examples of tilings associated with β cubic Pisot units, i.e., the minimal polynomial of β is of the form x3 − ax2 − bx ± 1.
    keywords: 5/2010; acta; admissible; balanced; base; case; db,−β; digit; distances; expansion; ito; minimal; negative; number; numeration; pisot; polynomial; polytechnica; rényi; sadahiro; set; string; system; theorem; tilings; vol
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        item: #126 of 1243
          id: ap-1257
      author: Amore, P.; Fernández, F. M.
       title: Two-particle Harmonic Oscillator in a One-dimensional Box
        date: 2010-01-05
       words: 3430
      flesch: 72
     summary: 50 No. 5/2010 ϕ(0)n1,n2(q1, q2)= ⎧⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎨ ⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎩ √ 2 − δij {cos[(2i − 1)πq1]cos[(2j − 1)πq2] +cos[(2j − 1)πq1]cos[(2i − 1)πq2]} Ag √ 2{cos[(2i − 1)πq1]cos[(2j − 1)πq2] −cos[(2j − 1)πq1]cos[(2i − 1)πq2]} Bg √ 2{cos[(2i If we assumea linear force between the particles then the Hamiltonian operator reads Ĥ = − h̄2 2 ( 1 m1 ∂2 ∂x21 + 1 m2 ∂2 ∂x22 ) + k 2 (x1 − x2)2 (1) and the boundary conditions are ψ =0 when xi = ±L/2.
    keywords: 5/2010; acta; box; confined; eigenfunctions; eigenvalues; energies; energy; fig; functions; harmonic; linear; lsf; method; model; order; oscillator; perturbation; phys; polytechnica; problem; q21; quantum; sec; states; symmetry; theory; variational; vol
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        item: #127 of 1243
          id: ap-1259
      author: Duplij, S.; Sinel’shchikov, S.
       title: On Uq (sl2)-actions on the Quantum Plane
        date: 2010-01-05
       words: 3070
      flesch: 79
     summary: Note that the series labeledwith pairs of nonzero symbolic matrices at both positions are empty, be- cause each such matrix determines a pair of specific weight constants α and β (16)–(19)which fails to co- incide to any pair of such constants associated to the set of nonzero symbolic matrices at the second posi- tion (28)–(32). The symbolic matrix ( � 0 0 � ) 1 can be dis- carded from the list of symbolic matrices with at least one 0 at every row or column, because of (21), 26 Acta Polytechnica Vol.
    keywords: action; algebra; classical; constants; cq[x; e(x)=; e(y)=; matrices; matrix; nonzero; plane; quantum; q−1; structures; symbolic; weight
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        item: #128 of 1243
          id: ap-1261
      author: Havlíček, M.; Pelantová, E.; Tolar, J.
       title: On Representations of sl(n, C) Compatible with a Z2-grading
        date: 2010-01-05
       words: 5907
      flesch: 66
     summary: If we do not insist on the irreducibility of representation r, the class of representations compatible with the Z2- grading obtained by the automorphism OutI is larger. I, where I is the identity operator on the representation space of representation r and σ1 denotes the first Pauli matrix.
    keywords: acta; algebra; automorphism; basis; case; compatible; contractions; contragredient; corresponding; decomposition; dimensional; equations; finite; form; gel’fand; graded; grading; group; inner; irreducible; k−1; lie; lie algebra; m1,n; m2,n; matrix; non; order; outer; outi; paper; parameters; patera; polytechnica; r(x; representation; rg2; simulation; sl(n; solutions; space; theory; tseitlin; vector; vol; ⎜⎜⎝; ⎟⎟⎠
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        item: #129 of 1243
          id: ap-1263
      author: Havlíček, M.; Pošta, S.
       title: The Diamond Lemma and the PBW Property in Quantum Algebras
        date: 2010-01-05
       words: 3686
      flesch: 74
     summary: − ac − ca − bc and (cb)b = (−ab − ba − ac − ca − bc)b = −ab2 − bab − acb − cab − bcb = −ab − bab − a(−ab − cab − b(−ab − ba − ac − ca − bc)= −ab − bab + a2b + aba + a2c + aca + abc − cab + bab + b2a + bac +
    keywords: aba; abc; aca; acta; algebra; bab; bac; basis; bca; cab; case; casimir; center; complex; diamond; elements; form; generators; irreducible; lemma; monomials; polynomial; polytechnica; quantum; relations; root; rules; unity; vol; ′q(so3; −ab
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        item: #130 of 1243
          id: ap-1265
      author: Jakubský, V.
       title: Aharonov-Bohm Effect and the Supersymmetry of Identical Anyons
        date: 2010-01-05
       words: 3031
      flesch: 67
     summary: In addition, we can define W = Q Q̃ = Q̃ Q. (1.12) By contrast, the system described by H0α,− allows singular wave functions.
    keywords: acta; aharonov; anyons; body; bohm; bosons; composite; effect; fermions; field; following; functions; hamiltonian; identical; interaction; magnetic; operators; particles; phys; polytechnica; potential; relations; rev; solenoid; spin; statistics; supersymmetry; system; vol; wave
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        item: #131 of 1243
          id: ap-1267
      author: Kalina, M.; Paseka, J.; Riečanová, Z.
       title: Sharply Orthocomplete Effect Algebras
        date: 2010-01-05
       words: 4733
      flesch: 78
     summary: Namely, the center C(E), the compatibility cen- ter B(E) and the set S(E) of sharp elements of Archimedean atomic lattice effect algebras E can be expressed by set-theoretical operations on their atomic blocks. Lattice effect algebras are in some sense a nearest common generalization of orthomodular lattices [13] that may include non- compatible pairs of elements, and MV-algebras
    keywords: algebra; algebra e; archimedean; atomic; bifull; block; c(e; complete; dominating; effect; effect algebra; elements; iff; lattice; lattice effect; orthocomplete; orthogonal; orthomodular; riečanová; s(e; set; sharp; sub; system; theorem
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        item: #132 of 1243
          id: ap-1269
      author: Kochan, D.
       title: Does a Functional Integral Really Need a Lagrangian?
        date: 2010-01-05
       words: 2478
      flesch: 66
     summary: Scl = κ 4 (q1 − q0) (q0 +3q1)e −κt1 − (q1 +3q0)e−κt0 e−κt0 − e−κt1 and A(q1, t1|q0, t0)= √ κ [1], the probability amplitude of the transition of a system fromthe space-time con- figuration (q0, t0) to (q1, t1) is given as follows: A(q1, t1 | q0, t0) ∝∫
    keywords: a(q1; acta; classical; dissipative; equation; extended; feynman; formula; functional; hamiltonian; hdt; integral; kochan; lagrangian; motion; padq; path; phase; phys; polytechnica; probability; quantization; quantum; scl; space; surface; systems; vol
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        item: #133 of 1243
          id: ap-1271
      author: Mine, T.
       title: Self-adjoint Extensions of Schrödinger Operators with ?-magnetic Fields on Riemannian Manifolds
        date: 2010-01-05
       words: 7281
      flesch: 84
     summary: The case X = Y = A† can be treated similarly. V = 0 (but Γ = ∅) is exhaustively studied.
    keywords: a(0; a(1; acta; adjoint; aharonov; assume; assumption; bohm; case; closed; continuous; coordinate; c∞0; d(hmax; d(lk; d(x; deficiency; define; definition; extensions; field; following; follows; form; function; gmn; hmin; independent; inverse; k=1; lemma; linear; local; magnetic; map; max; min; operator; polytechnica; proof; proposition; second; section; self; space; step; subspaces; term; theorem; theory; vector; vol; χkf; ψ−1k
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        item: #134 of 1243
          id: ap-1273
      author: Rotter, I.
       title: Exceptional Points and Dynamical Phase Transitions
        date: 2010-01-05
       words: 2695
      flesch: 57
     summary: The nar- row resonance states appear due to resonance trap- ping, i.e. as a consequenceof the alignmentof a small number of resonance states to the environment (for details see [2]). Furthermore, the number of trapped resonance states is smaller than the number of individual (basic) states.
    keywords: continuum; coupling; discrete; dynamical; eigenfunctions; environment; exceptional; hermitian; level; non; number; open; operator; parameter; phase; physics; points; quantum; regime; resonance; resonance states; states; system; transition; wavefunctions
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        item: #135 of 1243
          id: ap-1275
      author: Shapiro, B.
       title: Root Asymptotics for the Eigenfunctions of Univariate Differential Operators
        date: 2010-01-05
       words: 3188
      flesch: 70
     summary: The Cauchy transform C(z) of the asymptotic root measure μ of the scaled eigenpolynomial qn(z) = pn(n dz) of a degenerate T satisfies the following al- gebraic equation for almost all complex z: zj0Cj0(z)+ ∑ j∈A αj,degQj z degQj Cj(z)= 1, where A is the set consisting of all j for which the maximum d := max j∈[j0+1,k] ( j − j0 j − degQj ) is attained, i.e. A = {j : (j − j0)/(j − degQj)= d}. I)(z + I)(z − 2+3I)(z − 3 − 2I) d4 dz4 ; T3 = (z − I)(z +
    keywords: acta; asymptotic; cauchy; coefficients; corresponding; definition; degenerate; degree; eigenfunctions; equation; examples; fig; finite; lines; math; measure; operator; p(z; pn(z; polynomial; polytechnica; problem; qk(z; root; sequence; shapiro; solvable; spectral; stokes; theorem; union; vol; z2l
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        item: #136 of 1243
          id: ap-1277
      author: Znojil, M.
       title: Rectifiable PT -symmetric Quantum Toboggans with Two Branch Points
        date: 2010-01-05
       words: 3892
      flesch: 65
     summary: This formula guarantees the P T symmetry of the re- sulting contour aswell as the stability of the position of our pair of branch points. In an opposite direction one could also contem- plate tobogganic models where a larger number of branch points would have to be taken into account.
    keywords: )(s; acta; branch; c(0)(s; certain; change; circle; complex; contours; critical; curve; descriptors; equation; equivalent; fig; figures; lett; line; models; non; nontrivial; numerical; phys; points; polytechnica; present; quantum; real; rectifiable; ref; schrödinger; shift; single; spectra; straight; symmetry; tobogganic; transition; vol; znojil; ψn(x
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        item: #137 of 1243
          id: ap-1279
      author: Augustin, R.; Koleňák, R.
       title: Microstructure of the Transitional Area of the Connection of a High-temperature Ni-based Brazing Alloy and Stainless Steel AISI 321 (X6CrNiTi 18–10)
        date: 2010-01-06
       words: 2578
      flesch: 56
     summary: Connections between Ni-based brazing alloys (NI 102) with a small content of B and AISI 321 stainless steel (X6CrNiTi 18–10) were created in a vacuum (10−2 Pa) at various brazing temperatures and for various holding times at the brazing temperature. Keywords: NI 102 brazing alloy, AISI 321, wetting, chemical microanalysis, diffusion zones.
    keywords: aisi; alloy; boundaries; brazing; brazing alloy; chemical; diffusion; fig; high; holding; influence; interface; microanalysis; min; parameters; solubility; specimens; stainless; temperature; time; wetting; zone
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        item: #138 of 1243
          id: ap-1281
      author: Ceres, D.; Jirout, T.; Rieger, F.
       title: Pitched Blade Turbine Efficiency at Particle Suspension
        date: 2010-01-06
       words: 1339
      flesch: 67
     summary: This paper deals with effect relative impeller size and particle content on the efficiency of a pitched six-blade turbine at particle suspension. Keywords: Pitched blade turbine, particle suspension, agitator efficiency.
    keywords: agitator; blade; concentration; content; diameter; fig; impeller; liquid; measurements; mixing; particle; power; rieger; solid; speed; suspension; vessel; volumetric
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        item: #139 of 1243
          id: ap-1283
      author: Čech, I.
       title: A Model of Active Roll Vehicle Suspension
        date: 2010-01-06
       words: 4851
      flesch: 68
     summary: Load transfer ratio front and rear Sw1/sst1 = kw1(Zw1 − Zk1)/sst1, Sw2/sst2 = kw2(Zw2 − Zk2)/sst2. where the static forces are sst1 = 2(mb + ms + mw)agxw2/xw, sst2 = 2(mb + ms + mw)agxw1/xw Seat-body displacements front and rear Zsb1 =Zs1 − Zb, Zsb2 =Zs2 − Zb Dynamic-to-static ratio of lateral forces between wheels and road, front and rear Sy1/sst1 = ky1Yky1/sst1, Sy2/sst2 = ky2Yky2/sst2. [N] Sqs Sf qs sqs lateral force in the joint due to the seat
    keywords: acceleration; acta; active; actuator; axis; axle; body; centre; constant; control; damping; displacement; dynamic; effective; equation; fig; force; frequency; gyration; height; impulse; inertia; input; joint; lateral; lateral acceleration; load; low; mass; model; moments; motion; parameters; passive; polytechnica; proportional; radius; rear; road; roll; seat; solid; spring; sqb; sqs; sst1; sst2; stability; static; stiffness; suspension; tyre; values; variant; vehicle; vertical; vol; wheel; zr2; zw2
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        item: #140 of 1243
          id: ap-1285
      author: Ficker, T.
       title: Fractality of Fracture Surfaces
        date: 2010-01-06
       words: 4289
      flesch: 70
     summary: Keywords: fractal dimension, fracture surfaces, porous materials, compressive strength. 3 Explanatory remarks and discussion The following paragraphs provide comments on the proposed concept of fractal compressive strength in order to clarify all its crucial points.
    keywords: 3−di; 6/2010; balshin; case; cement; clusters; compact; components; compressive; dependence; different; dimension; euclidean; ficker; fractal; fracture; function; i=0; length; materials; model; non; number; pcr; phys; point; polytechnica; porosity; porous; relation; sample; size; solid; space; spheres; strength; structure; surfaces; vol; volume
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        item: #141 of 1243
          id: ap-1287
      author: Hassan, A. H.; Rahoma, U. A.; Sabry, M.; Fathy, A. M.
       title: Color Portion of Solar Radiation in the Partial Annular Solar Eclipse, October 3rd, 2005, at Helwan, Egypt
        date: 2010-01-06
       words: 4767
      flesch: 58
     summary: Keywords: diffuse infrared solar radiation, partial solar eclipse, meteorological data, optical depth, transparency, linke turbidity and Angstrom turbidity. Due to the decreasing fraction of direct radiation at shorter wavelengths, all three parame- ters showed much weaker cloud shading effects than global solar radiation.
    keywords: absorption; acta; air; atmospheric; bands; color; components; day; depth; different; diffuse; direct; duration; eclipse; egypt; fig; fraction; gir; global; guv; helwan; high; higher; hourly; infrared; low; maximum; measurements; optical; percentage; polytechnica; portion; radiation; region; shows; solar; solar eclipse; solar radiation; spectral; temperature; total; transparency; turbidity; ultraviolet; values; variation; vol; wavelength
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        item: #142 of 1243
          id: ap-1289
      author: Jirsa, J.; Žáček, J.
       title: UML-oriented Risk Analysis in Manufacturing Systems
        date: 2010-01-06
       words: 3769
      flesch: 62
     summary: Keywords: risk analysis, Unified Modelling Language, manufacturing systems. For this we need risk analysis.
    keywords: acta; activity; analysis; application; behaviour; better; cable; case; classes; core; czech; description; diagram; example; failures; fig; hazards; important; language; line; management; manufacturing; method; modelling; necessary; new; object; paper; pay; polytechnica; portal; possible; potential; process; processing; reel; risk; risk analysis; scenarios; sequence; software; specific; steps; systems; technical; techniques; technological; tools; uml; unified; unit; use; vol
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        item: #143 of 1243
          id: ap-1291
      author: Kopecký, M.
       title: Ensemble Empirical Mode Decomposition: Image Data Analysis with White-noise Reflection
        date: 2010-01-06
       words: 4070
      flesch: 65
     summary: This is due to the use of a finite, not infinitesimal, amplitude of white noise which forces the ensemble to exhaust all possible solutions in the sifting process. The main purpose of adding white noise was to provide a uniform reference frame in the time–frequency space.
    keywords: acta; adaptive; analysis; approach; comparison; cube; data; decomposition; different; dyadic; edge; eemd; emd; empirical; ensemble; example; fig; filter; fluctuations; frequency; highs; huang; image; imfs; input; intermittent; introduction; line; local; lows; main; mean; method; mixing; mode; noise; number; original; panel; polytechnica; process; result; scale; series; set; sifting; signal; test; time; vol; white; white noise
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        item: #144 of 1243
          id: ap-1293
      author: Laurent, R.; Henriet, J.; Gschwind, R.; Makovicka, L.
       title: A Morphing Technique Applied to Lung Motions in Radiotherapy: Preliminary Results
        date: 2010-01-06
       words: 5741
      flesch: 59
     summary: 1.2 Simulation of lung motions The aim of simulating lung motion is to minimize radiation exposure due to 4DCT and to help trace the accurate motion of the lung. The first section of this paper begins with a brief review of organ motion in radiotherapy, followed by an overview of the simulation of lung motion, as well as anoverviewofmorphingalgorithmsand toolsused inmedicine.
    keywords: account; acta; algorithm; approach; biol; brain; breathing; contour; cycle; data; deformable; deformation; different; dimensions; end; expiration; fig; files; final; geometrical; ieee; image; imaging; implemented; important; input; inspiration; intermediate; lines; lung; medical; method; model; motion; number; order; organ; patient; phase; phys; polytechnica; radiation; radiotherapy; registration; respiratory; results; scan; section; simulation; slice; step; study; table; target; technique; transformation; treatment; tumour; use; vol; voxels; vsource
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        item: #145 of 1243
          id: ap-1295
      author: Nerádová, M.; Kovačócy, P.
       title: Welding of Aluminum Using a Pulsed Nd:YAG Laser
        date: 2010-01-06
       words: 1775
      flesch: 59
     summary: Because of the possibility of assessing the impact of voltage-inspiring geometry, penetration welding was carried out at voltages 350 V and 375 V. Based on themeasureddimensions influencesof voltageenergy, pulse duration and standoff distance on the weld ge- ometrywereevaluated. Keywords: welding parameters, laser welding, aluminum, weldability of aluminum.
    keywords: acta; aluminum; beam; fig; geometry; hardness; heat; high; internet; joints; laser; material; max; metal; microstructure; oxidic; parameters; pass; passes; penetration; polytechnica; surface; use; vol; welding; welds
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        item: #146 of 1243
          id: ap-1297
      author: Provazník, M.; Koleňák, R.
       title: A Study of the Interface of Soldered Joints of SnInAgTi Active Solder with Ito Ceramics
        date: 2010-01-06
       words: 1653
      flesch: 61
     summary: 3: DTA of SnInAgTi solder Fig. 4: Microstructure of SnInAgTi active solder [3] Fig. 4 presents the heterogeneous microstructure of theSnInAgTi soft active solder in themolten state. Keywords: ultrasonic activation, active solder, ITO (indium-tin oxide) ceramics.
    keywords: acta; activation; active; analysis; ceramics; cooling; creation; element; fig; high; indium; interface; ito; joint; materials; metal; phases; polytechnica; power; sninagti; soft; solder; soldering; temperature; ultrasonic; ultrasound; use; vol
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        item: #147 of 1243
          id: ap-1299
      author: Sivkov, O.
       title: Practical Results of a Five-level Flying Capacitor Inverter
        date: 2010-01-06
       words: 3638
      flesch: 61
     summary: f angular frequency L = x/Ω inductance Z = √ RR + XX impedance Uc01 =3/4U dc initial voltage on the capacitor C1 Uc02 =1/2U dc initial voltage on the capacitor C2 Uc03 =1/4U dc initial voltage on the capacitor C3 Fig. 4: Output voltage Uout, output current Iout and flying capacitor voltages Uc1, Uc2 and Uc3 of five-level FCMI with a resistive inductive load Fig. 5: A zoom-in of output voltage Uout, output current Iout and capacitor voltages Uc1, Uc2, Uc3 shown in Fig. 4 77 Acta Polytechnica Vol. The lower levels on phase outputs A, B, C are achievedas the difference between supply voltage Udc and capacitor voltages Uc1,2,3.
    keywords: amplitude; capacitor; control; converters; current; experimental; fcmi; fig; frequency; igbt; input; inverter; level; level fcmi; load; multilevel; number; output; output voltage; phase; polytechnica; power; resistance; results; scheme; simulation; simulink; source; states; strategy; switches; switching; topology; uc1; uc2; uc3; umax; uout; values; voltage
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        item: #148 of 1243
          id: ap-1301
      author: Šimáně, Č.
       title: Non Mechanical (Mezic) Type Forces in the Foundations of Quantum Mechanics
        date: 2010-01-06
       words: 3244
      flesch: 55
     summary: dt = μ(�v + �u)[div�u(�v + �u)+div�v(�v + �u)]δV = μ�v div�vδV + μudiv�uδV (9) Then the equations of motion of the unit volume el- ement take the form μ d�v dt + μ d�u dt +�v [( ∂μ ∂t ) �u +�v∇μ ] + μ�v div�v + �u [( ∂μ ∂t ) �v + �u∇μ ] + μ�udiv�u + e m μ∇ϕ + �uq =0 (10) or by putting together the third and the fourth, and the fifth, sixth and the lastmember members in (10) μ d�v dt +�v [( ∂μ ∂t ) �u +div(μ�v) ] + e m μ∇ϕ+ μ d�u dt + �u [( ∂μ ∂t ) �v +div (μ�u) ] + �uq =0 (11) Here again the partial timederivativesmust be taken at �v and �u constant. dV (2) as a sum consisting of two Lagrangeans in which the integrand is the sum of the densities of the kinetic potentials corresponding to the motions with uncor- related velocities �v and �u(rot�v = rot�u = 0) and the 81 Acta Polytechnica Vol.
    keywords: classical; cloud; continuity; continuous; density; electrical; electron; equation; existence; field; forces; form; independent; matter; mechanical; member; mezic; motion; non; nucleus; particle; potential; quantum; schrödinger; state; steady; substance; time; velocity; volume
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        item: #149 of 1243
          id: ap-1303
      author: Zamarovský, P.
       title: Cosmos, Time and Creation (Remarks to the Philosophical, Theological and Physical Conceptions of Creation)
        date: 2010-01-06
       words: 2283
      flesch: 55
     summary: Keywords: Big Bang, creation, cosmos, time scale, imaginary time, horizon, singularity. 50 No. 6/2010 Cosmos, Time and Creation Remarks to the Philosophical, Theological and Physical Conceptions of Creation P. Zamarovský Abstract The concept of the beginning of Cosmos appears to be problematic.
    keywords: acta; ancient; approaches; bang; beginning; big; century; chronometric; clocks; concept; conceptions; cosmos; creation; czech; day; definition; genesis; god; horizon; imaginary; new; ordering; ordinary; philosophical; physical; physics; polytechnica; processes; scale; singularity; theological; thomas; time; universe; vol; world
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        item: #150 of 1243
          id: ap-1305
      author: Živčák, J.; Roško, M.
       title: How to Protect Patients Digital Images/Thermograms Stored on a Local Workstation
        date: 2010-01-06
       words: 2776
      flesch: 54
     summary: Auditing fingerprint logon attempts generates security events, depending on whether the audit of successes or failures, or both (in our case we audited both), is enabled. Fingerprints cannot be forgotten, shared or misplaced.
    keywords: acceptance; access; attempts; authentication; biometric; cit; claim; digital; enrollee; error; failed; false; far; fingerprint; fraud; frr; genuine; identity; images; information; line; logins; logon; negative; notebook; number; positive; process; rates; reader; recognition; reject; security; successful; system; tab; table; thermograms; total; true; user; vol; windows
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        item: #151 of 1243
          id: ap-1306
      author: Blažek, M.; Anisimova, E.; Páta, P.
       title: Application of Wavelet Transform for Image Denoising of Spatially and Time Variable Astronomical Imaging Systems
        date: 2011-01-01
       words: 2269
      flesch: 61
     summary: Fig. 3: Test image for wavelet transform 2.1 Results of the denoising We observed the changes of the standard deviation of the sky (background) value depending strongly on the decomposition level and the intensities of the nearby stars. Only soft thresholding [9] was ap- plied, due to its better peak signal to noise ratio for image denoising, and no thresholding was done to 1http://www.mathworks.com/ 2http://iraf.noao.edu/ 12 Acta Polytechnica Vol.
    keywords: acta; algorithms; application; astronomical; biorthogonal; changes; data; decomposition; denoising; detection; field; function; image; influence; level; new; noise; photometry; polytechnica; processing; psf; standard; stellar; systems; table; transform; variant; vol; wavelet; wide; δmmax
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        item: #152 of 1243
          id: ap-1308
      author: Castro-Tirado, A. J.
       title: Robotic Astronomy and the BOOTES Network of Robotic Telescopes
        date: 2011-01-01
       words: 2464
      flesch: 58
     summary: 1: Distribution of robotic telescopes in the world 1following the consensus reached after one hour of discussion amongst the 80 participants who attended the “Workshop in Robotic Autonomous Observatories”, held in Málaga (Spain) on May 18–21, 2009. Nowadays it consists of 4 stations, three of them hosting 60 cm fast slewing robotic telescopes aimed at contributing significantly to various scientific fields.
    keywords: 10′; acta; astronomical; astronomy; bootes; bootes-2; camera; castro; ccd; coordinator; different; field; fig; filters; fov; grbs; new; observation; observatories; observer; optical; polytechnica; ray; reflector; robotic; sky; spain; station; system; telescope; tirado; transient; vol
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        item: #153 of 1243
          id: ap-1310
      author: Giovannelli, F.; Sabau-Graziati, L.
       title: X-ray Transient Sources (Multifrequency Laboratories) The Case of the Prototype A0535+26/HDE 245770
        date: 2011-01-01
       words: 6787
      flesch: 66
     summary: The shape and intensity of X-ray outbursts are dependent on the strength of the activity of the primary. Thus the passage of the neutron star at the periastron occurs with a periodicity of 110.856 ± 0.02 days and the different kinds of X-ray outbursts of A0535+26 — following the definitions reported in the reviewbyGiovannelli & Sabau-Graziati (1992) —occur just after ∼ 8 days.
    keywords: a0535; acta; activity; bartolini; caballero; case; companion; cycle; days; emission; energy; et al; fig; flavia; giovannelli; giovannelli et; graziati; guarnieri; hde; high; lines; luminosity; mass; measurements; multifrequency; neutron; neutron star; october; optical; orbital; outbursts; passage; periastron; period; polytechnica; primary; pulsar; ray; ray outburst; red; sabau; sources; star; stellar; strong; system; time; vol; wind; xray
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        item: #154 of 1243
          id: ap-1312
      author: Grinberg, V.; Kreykenbohm, I.; Fürst, F.; Wilms, J.; Pottschmidt, K.; Bel, M. Cadolle; Rodriguez, J.; Marcu, D. M.; Suchy, S.; Markowitz, A.; Nowak, M. A.
       title: Timing Analysis with INTEGRAL: Comparing Different Reconstruction Algorithms
        date: 2011-01-01
       words: 2087
      flesch: 58
     summary: The power spectrum densities (PSDs) calculated from the above discussed ii light lightcurves are shown in Fig. So while a better noise correction is re- quired, ii light lightcurves are still well suited for timing studies with a 10s to 0.1s resolu- tion in the regime above 20keV. 4 Summary and Conclusions We have shown that it is possible to perform tim- ing studies with a resolution of up to 0.1 s with IN- TEGRAL when using the ii light tool.
    keywords: 10s; analysis; band; consistent; countrates; cyg; different; extract; extraction; field; fig; grs; image; integral; light; lightcurves; offset; resolution; results; scws; source; time; timing; usa; x-1
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        item: #155 of 1243
          id: ap-1314
      author: Hudec, R.; Blažek, M.; Hudcová, V.
       title: Czech Participation in the INTEGRAL Satellite: A Review
        date: 2011-01-01
       words: 2932
      flesch: 63
     summary: The results of the first 7 years of investigations of various scientific targets e.g. cataclysmic variables, blazars, X-ray sources, and GRBs with the ESA INTEGRAL satellite with Czech participation are briefly presented and discussed. [26] Hudec, R. et al.: Nuclear Physics B Proceedings Supplements, 2007, Vol. 166, p. 255–257.
    keywords: acta; blazars; camera; cataclysmic; curve; cvs; czech; data; deg; esa; et al; fig; fov; gamma; hard; high; hudec; ibis; integral; ips; kev; light; objects; observations; omc; optical; paper; participation; polytechnica; project; ray; rays; related; republic; results; satellite; sources; time; variables; vol
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        item: #156 of 1243
          id: ap-1316
      author: Hudec, R.; Pína, L.; Maršíková, V.; Inneman, A.; Skulinová, M.; Míka, M.
       title: Czech Participation in International X-Ray Observatory (IXO)
        date: 2011-01-01
       words: 3960
      flesch: 58
     summary: Keywords: X-ray satellites, X-ray telescopes, X-ray optics. 1 Introduction The design and development of X-ray optics has a long tradition in the Czech Republic (e.g. Hudec et al., 1991, 1999, 2000, 2001, Inneman et al. 1999, 2000).
    keywords: accuracy; alternative; athena; czech; design; development; esa; fig; forming; future; glass; high; hudec; imaging; inneman; ixo; large; microroughness; mirrors; optical; optics; order; parameters; prague; precise; process; project; ray; ray optics; republic; required; samples; silicon; space; spie; surface; technologies; technology; telescopes; thermal; vol; wafers; wolter
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        item: #157 of 1243
          id: ap-1318
      author: Hudec, R.; Hudec, L.; Klíma, M.
       title: Ultra Low-Dispersion Spectroscopy with Gaia and Photographic Objective Prism Surveys
        date: 2011-01-01
       words: 2865
      flesch: 56
     summary: 51 No. 2/2011 5 Conclusion Variability studies based on low-dispersion spectra are expected to provide unique novel data, and can use the algorithms recently developed for automatic analyses of digitized spectral Schmidt plates. The nearest analogy is digitized prism spectral plates: the Sonneberg, PARI, Hamburg and Byurakan surveys.
    keywords: acta; algorithms; astronomical; byurakan; classification; czech; data; deg; digitized; dispersion; emission; esa; fig; figure; gaia; henize; hudec; images; large; lines; low; mode; objective; objects; pari; photometric; pixel; plates; polytechnica; prism; resolution; schmidt; sky; southern; spectral; spectroscopy; stars; straizys; survey; telescope; ultra; vol
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        item: #158 of 1243
          id: ap-1320
      author: Hudec, R.
       title: The Puzzle of V407 Cygni
        date: 2011-01-01
       words: 1603
      flesch: 65
     summary: 1 Introduction V407 Cyg is a symbiotic binary harboring a Mira variable, of 745 day pulsation and a possible orbital period of 43 years, at a distance of 2.5/3.0 kpc and a reddening of E(B − V ) = 0.5/0.6 (Munari et al. 1990). 51 No. 2/2011 Fig. 1: The historical light curve of V407 Cyg (Munari et al., 1990) Fig. 2: INTEGRAL IBIS observation of the V407 Cyg position (Bassani, 2010) shows the new transient to be located between two persistent hard X-ray sources, with no confirmation of the transient detection Fig.
    keywords: aql; astronomical; atel; box; cbet; cyg; czech; et al; fermi; gamma; hudec; mira; munari; object; observations; optical; outburst; possible; ray; republic; source; star; symbiotic; transient; v407; variable; vol
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        item: #159 of 1243
          id: ap-1322
      author: Chernenko, A.
       title: On the Intrinsic Simplicity of Spectral Variability of GRBs
        date: 2011-01-01
       words: 2766
      flesch: 58
     summary: This analysis allows us to identify time intervals where emission variability can be reduced to a single physical parameter and can therefore be robustly attributed to a single physical emitter. [1..N ], N being the total number of time intervals for a given GRB.
    keywords: acta; analysis; correlation; curves; different; dimensional; eigenvalues; emission; energy; entire; figure; gamma; individual; intervals; light; matrices; matrix; multi; non; number; panel; polytechnica; properties; ray; scale; series; single; spectral; sub; time; variability; vol
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        item: #160 of 1243
          id: ap-1324
      author: Kovács, A.; Bagoly, Z.; Balázs, L. G.; Horváth, I.; Veres, P.
       title: Cosmology with Gamma-Ray Bursts Using k-correction
        date: 2011-01-01
       words: 1831
      flesch: 72
     summary: The output of the calculations is the comoving isotropic energy Eiso, but this is not the endpoint: this data can be useful for estimating the ΩM parameter of the Universe and for making a GRB Hubble diagram using Amati’s relation. The Prompt Energy Re- lease of Gamma-Ray Bursts using a Cosmological k-Correction, The Astronomical Journal, 2001, Vol. 121, Issue 6, pp.
    keywords: amati; budapest; bursts; correlation; data; distribution; eiso; energy; figure; fluence; gamma; grb; hungary; issue; parameters; ray; relation; results; university; vol
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        item: #161 of 1243
          id: ap-1326
      author: Kreykenbohm, I.; Fürst, F.; Barrágan, L.; Wilms, J.; Rothschild, R. E.; Suchy, S.; Pottschmidt, K.
       title: 4U 1909+07: a Hidden Pearl
        date: 2011-01-01
       words: 3548
      flesch: 73
     summary: Neither the photoelectric absorption nor the power law index Γ varies with pulse phase. The temperature kT of the blackbody on the other hand does not change with pulse phase.
    keywords: 4u1909; accretion; acta; analysis; apj; best; blackbody; cutoffpl; data; energies; energy; field; figure; high; integral; kev; line; magnetic; model; neutron; parameters; pca; peak; period; phase; polytechnica; profile; pulse; ray; resolution; rxte; source; spectral; spectrum; star; strong; time; vol; wilms
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        item: #162 of 1243
          id: ap-1328
      author: Lovisari, L.; Schindler, S.; Kapferer, W.
       title: XMM Observations of Metal Abundances in Galaxy Clusters
        date: 2011-01-01
       words: 2173
      flesch: 63
     summary: Due to the large potential wells of galaxy clusters they retain all the enriched material. [3] Kapferer, W., Ferrari, C., Domainko, W., Mair, M., Kronberger, T., Schindler, S., Kimes- wenger, S., van Kampen, E., Breitschwerdt, D., Ruffert, M.: Simulations of galactic winds and starbursts in galaxy clusters, A & A, 447, 2006, p. 827.
    keywords: cluster; distribution; enrichment; galactic; galaxies; galaxy; gas; high; icm; iron; kapferer; maps; metallicity; metals; newton; pressure; ram; schindler; stripping; temperature; winds; xmm
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        item: #163 of 1243
          id: ap-1330
      author: Mészáros, A.; Řípa, J.; Balázs, L. G.; Bagoly, Z.; Veres, P.; Horváth, I.
       title: Cosmology and the Subgroups of Gamma-ray Bursts
        date: 2011-01-01
       words: 922
      flesch: 69
     summary: 51 No. 2/2011 Cosmology and the Subgroups of Gamma-ray Bursts A. Mészáros, J. Ř́ıpa, L. G. Balázs, Z. Bagoly, P. Veres, I. Horváth Abstract Both short and intermediate gamma-ray bursts are distributed anisotropically in the sky (Mészáros, A. et al. ApJ, 539, 98 (2000), Vavrek, R. et al. MNRAS, 391, 1741 (2008)). T90 is in seconds; for definitions of hardness, durationT90 and formore details see Horváth et al.:
    keywords: apj; bursts; et al; fig; gamma; grbs; horváth; mészáros; ray; redshifts; short
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        item: #164 of 1243
          id: ap-1332
      author: Miškovičová, I.; Hanke, M.; Wilms, J.; Nowak, M. A.; Pottschmidt, K.; Schulz, N. S.
       title: Spectroscopy of the Stellar Wind in the Cygnus X-1 System
        date: 2011-01-01
       words: 3409
      flesch: 70
     summary: The distribution of X-ray dips with or- bital phase peaks around phase 0.0 [1]. The distribution of X-ray dips with orbital phase in Cygnus X-1, MNRAS, 311, 2000, p. 861–868.
    keywords: absorption; accretion; astrophys; binaries; binary; black; chandra; clumps; color; curve; cygnus; different; dipping; dips; fig; hard; high; hole; light; lines; mass; mode; non; observations; obsid; orbital; phase; present; ray; soft; spectra; spectrum; star; state; stellar; strong; structure; system; time; transitions; wind; x-1
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        item: #165 of 1243
          id: ap-1334
      author: Řeřábek, M.; Páta, P.
       title: Advanced Processing of Images Obtained from Wide-field Astronomical Optical Systems
        date: 2011-01-01
       words: 3716
      flesch: 59
     summary: An experiment for estimating the optical aber- rations of real optical systems was implemented. Optical aberrations models for linear space invariant and variant (LSI/LSV) systems are there- fore outlined in this paper.
    keywords: aberration; acta; algorithm; astronomical; characteristics; coma; data; deconvolution; distance; error; field; figure; fov; function; gaussian; image; image data; invariant; measurements; model; object; optical; optical system; original; polytechnica; processing; profile; psf; real; space; star; system; transfer; use; uwfc; variant; wavefront; wide; zernike; |m|
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        item: #166 of 1243
          id: ap-1336
      author: Schindler, J.; Páta, P.; Klíma, M.; Fliegel, K.
       title: Astronomical Image Compression Techniques Based on ACC and KLT Coder
        date: 2011-01-01
       words: 3286
      flesch: 55
     summary: [9] seems to be a better solution for astronomical image data compression. Keywords: astronomical image compression, Karhunen-Loève transform, dark frame compression, loss less compression algorithm, Astronomical Context Coder (ACC), JPEG 2000.
    keywords: acc; acta; algorithms; astronomical; background; better; bootes; coder; coding; comparison; compression; context; czech; dark; data; deep; error; estimation; field; figure; flat; format; image; input; jpeg2000; klt; loève; lossless; lossy; methods; multimedia; new; noise; pixel; polytechnica; processing; properties; ratio; results; reversible; scientific; set; sky; specific; system; technique; transform; vol; wavelet
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        item: #167 of 1243
          id: ap-1338
      author: Sokołowski, M.; Należyty, M.; Majczyna, A.; Wawrzaszek, R.; Wajer, P.
       title: Searching for Space Debris Elements with the “Pi of the Sky” System
        date: 2011-01-01
       words: 3012
      flesch: 61
     summary: 51 No. 2/2011 Distance to closest satellite Entries 9660 Mean 8346 RMS 4750 Distance from event to closest satellite [arcsec] 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 N u m b e r o f e v e n ts 210 Distance to closest satellite Entries 9660 Mean 8346 RMS 4750 = 1800’’satR Night 20070526 MC Distance to closest satellite : night 20070526 and MC Fig. 2: The image on the left shows the distribution of the distance from a flash event candidate to the closest satellite from the catalog, for events found by the coincidence algorithm during night of 2007.05.26/27. 51 No. 2/2011 Fig. 7: Example of a text file containing satellite observational data and χ2par/χ 2 line < 2, parabolic fit parameters are cho- sen.
    keywords: algorithms; analysis; closest; data; database; debris; earth; elements; events; figure; geostationary; image; large; line; moving; new; night; normal; objects; observations; optical; orbit; orbital; order; parameters; polytechnica; prototype; satellites; single; sky; space; space debris; system; track; transients; vol
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        item: #168 of 1243
          id: ap-1340
      author: Vítek, S.; Fliegel, K.; Páta, P.; Koten, P.
       title: MAIA: Technical Development of a Novel System for Video Observations of Meteors
        date: 2011-01-01
       words: 1533
      flesch: 53
     summary: Keywords: imaging systems, image processing, ethernet camera, image intensifier, system testing, astronomy, meteors. 1 Introduction Double station observation of meteors using two video systems coupled with image intensifiers started at the Ondřejov observatory about a decade ago[1].
    keywords: analog; automatic; camera; current; czech; ethernet; image; image intensifier; input; intensifier; lens; measured; meteors; mtf; new; observation; output; overall; paper; resolution; response; spatial; spectral; system; video
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        item: #169 of 1243
          id: ap-1342
      author: Żarnecki, A. F.; Małek, K.; Sokołowski, M.
       title: Improving the Photometry of the Pi of the Sky System
        date: 2011-01-01
       words: 2394
      flesch: 53
     summary: With a new calibration algorithm taking into account the spectral type of reference stars, the stability of the photometry algorithm can be significantly improved. This is an iteration procedure where stars from the list are matched against reference stars from the catalog (the TYCHO catalog is currently used).
    keywords: algorithms; analysis; average; bgind; cameras; catalogue; ccd; correction; data; detector; fast; field; fig; figure; filter; las; line; magnitudo; measurements; new; optical; photometry; physics; precision; prototype; ray; reference; sky; spectral; stars; system; time; university; variable; warsaw
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        item: #170 of 1243
          id: ap-1344
      author: Ananikian, N.; Ananikyan, L.; Chakhmakhchyan, L.; Kocharian, A.
       title: Thermal Entanglement and Critical Behavior of Magnetic Properties on a Triangulated Kagomé Lattice
        date: 2011-01-02
       words: 3562
      flesch: 63
     summary: Thus, the Kagomé lattice of the Ising spins (monomers) con- tains inside each triangle unit a smaller triangle of Heisenberg spins (trimer). There is a strong Heisenberg Jaa (antiferro) exchange coupling between trimeric sites of type a and a weaker Ising-type (ferro) exchange (Jab) be- tween trimeric types a and monomeric b.
    keywords: 3λaa; acta; behavior; bogoliubov; c(ρ; concurrence; critical; density; effective; entanglement; exchange; features; field; fig; frustrated; gibbs; heisenberg; inequality; interactions; isotropic; jaa; kagomé; lattice; magnetic; model; non; phase; phys; polytechnica; properties; quantum; rev; sec; sites; spins; state; system; temperature; thermal; transition; triangles; triangulated; type; vol; yerevan
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        item: #171 of 1243
          id: ap-1346
      author: Bellucci, S.; Krivonos, S.; Sutulin, A.
       title: N = 4, d = 1 Supersymmetric Hyper-Kähler Sigma Models and Non-Abelian Monopole Background
        date: 2011-01-02
       words: 5674
      flesch: 66
     summary: Indeed, if we rewrite (3.7) as φ̇ = Bav̇a − f,a(λσaλ̄)+ f A, f,a ≡ ∂ ∂va f, (4.1) then the r.h.s. of (4.1) has to transform as a full time derivative under supersymmetry transforma- tions (2.15). The resulting action includes a wide class of N = 4 supersymmetric mechanics describing the motion of an isospin-carrying particle over spaces with non-trivial geometry.
    keywords: abelian; acta; action; aij; arxiv; auxiliary; background; bellucci; bosonic; case; components; coupling; dimensional; fermionic; fermions; flat; function; gauge; harmonic; hep; hyper; instanton; isospin; ivanov; kähler; krivonos; mechanics; models; non; nut; particle; phys; physical; polytechnica; potential; qiα; rev; sigma; spaces; superfield; supermultiplet; supersymmetric; taub; tensor; time; variables; vij; vol; |v|; η̄i
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        item: #172 of 1243
          id: ap-1348
      author: Bellucci, S.; Krivonos, S.; Sutulin, A.
       title: Five-dimensional N = 4 Supersymmetric Mechanics
        date: 2011-01-02
       words: 4250
      flesch: 64
     summary: Next, we introduce the standardPoissonbrackets for bosonic fields {π,Λ} =1, { π̄,Λ } =1, {pφ, φ} =1, (2.13) so that the generators of the transformations (2.11), 2We used the following definition of the superspace measure: d4θ ≡ − 1 96 DiaDibD bj Dja. 23 Acta Polytechnica Vol. (2.16) Performing a Routh transformation over the vari- ables (Λ,Λ, φ), we reduce the action (2.8) to S̃ = S − ∫ dt { π Λ̇+ π̄ Λ̇+ pφφ̇ } (2.17) and substitute the expressions (2.16) in S̃. At the final step, we have to choose the proper parametriza- tion for bosonic components qiαA (2.6), taking into account that they contain only five independent vari- ables.
    keywords: abelian; acta; action; arxiv; bellucci; bosonic; case; components; dimensional; fermionic; fields; form; general; group; hep; hypermultiplets; invariant; isospin; ivanov; krivonos; lechtenfeld; mechanics; monopole; motion; non; ordinary; phys; polytechnica; possible; qiαa; qiα̂a; reduction; rev; sector; su(2; superfields; superspace; supersymmetric; system; variables; vol; vαv̄β; yang
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        item: #173 of 1243
          id: ap-1350
      author: Castro, O. Osuna; Wagner, E.
       title: Quantum Moment Map and Invariant Integration Theory on Quantum Spaces
        date: 2011-01-02
       words: 2415
      flesch: 68
     summary: q2y, E � y =0, F � y = q1/2((1+ q−2)x − (1+ s)), K � x = x, E � x = q1/2y, F � x = q5/2y∗, K � y∗ = q−2y∗, E � y∗ = q−3/2((1+ q−2)x − (1+ s)), F � y∗ =0. 30 Acta Polytechnica Vol. Using the relations ke = q2ek, f k = q2kf, ef − f e = (q − q−1)−1(sk − k−1), (9) one easily proves that (8) defines a U-action on L+(D) turning it into a left U-module *-algebra.
    keywords: -algebra; action; approach; hilbert; integral; integration; invariant; l+(d; map; moment; operator; quantum; relations; representations; s(a; set; space; theoretic; theory; trace; xηn; yηn
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        item: #174 of 1243
          id: ap-1352
      author: Dimakis, A.; Kanning, N.; Müller-Hoissen, F.
       title: Bidifferential Calculus, Matrix SIT and Sine-Gordon Equations
        date: 2011-01-02
       words: 3319
      flesch: 77
     summary: =1, as follows, p = p0 − tr ( (SK + KS)ΞKΞ (IM +(KΞ) 2)−1 ) = p0 +tr ( (IM +(KΞ) 2)x (I M +(KΞ) 2)−1 ) x , (22) using (19) and the identity (detM)x =tr(M xM −1) detM for an invertiblematrix function M. q in (20) can be expressed as q =2tr ( SKΞ (IM +(KΞ) 2)−1 ) .
    keywords: algebra; a−1; bidifferential; calculus; consequence; equation; exact; gordon; graded; integrable; invertible; let; mat(m; mat(n; matrices; matrix; miura; phys; proposition; r2)−1; result; second; self; sine; sit; solutions; system; transformation
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        item: #175 of 1243
          id: ap-1354
      author: Kandirmaz, N.; Sever, R.
       title: Path Integral Solution of PT-/non-PT-Symmetric and non-Hermitian Hulthen Potential
        date: 2011-01-02
       words: 1743
      flesch: 81
     summary: 2 PT-Symmetric and Non-Hermitian Hulthen Potential The kernel of a point particle moving in the V (x) potential in one dimension is represented by the fol- lowing path integral K(xb, tb;xa, ta) = ∫ DxDp 2π · (1) exp{i ∫ dt[pẋ − p2 2m − V (x)]} where h̄ = 1. = 1 2 √ 2 √ n +1 √ 4(n +1) 2 − (λn − Kn) 2 · √ Γ(n +1)Γ(Kn + λn + n)
    keywords: energy; functions; hermitian; hulthen; integral; kernel; non; path; phys; potential; sever; sin2; spectrum; symmetric
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        item: #176 of 1243
          id: ap-1356
      author: Lanczewski, T.
       title: The Velocity Tensor and the Momentum Tensor
        date: 2011-01-02
       words: 2124
      flesch: 75
     summary: Keywords: relativistic classical mechanics, velocity tensor, momentum tensor. (11) the Galilean transformation in the form G(v)= ( 1 0 −v 1 ) and hence we get Π(v)= ( 1 0 v 1 )( Π00 Π 0 1 Π10 Π 1 1 )( 1 0 −v 1 ) = ( Π00 − vΠ 0 1 Π 0 1 Π10 + v ( Π00 −Π 1 1 ) − v2Π01 Π 1 1 + vΠ 0 1 ) , (12) where all elements Πμν in Eq.
    keywords: case; classical; constant; description; dimensional; dynamics; equation; form; general; matrix; mechanics; momentum; relativistic; tensor; time; velocity; β(π; π00; π01
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        item: #177 of 1243
          id: ap-1358
      author: Ferreira, L. A.; Kato, S.; Sawado, N.; Toda, K.
       title: Quantized Solitons in the Extended Skyrme-Faddeev Model
        date: 2011-01-02
       words: 1793
      flesch: 73
     summary: We have found new Hopf soliton solutions for the extended Skyrme- Faddeev model. We construct static soliton solutions carrying non- trivialHopf topological charges for afield theory that has found interesting applications in many areas of physics.
    keywords: energy; faddeev; field; hopf; lattice; model; phys; physics; rev; science; skyrme; solitons; solutions; su(2; theory; university; ∂iu
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        item: #178 of 1243
          id: ap-1360
      author: Fotopoulos, A.; Tsulaia, M.
       title: Current Exchanges for Reducible Higher Spin Modes on AdS
        date: 2011-01-02
       words: 2178
      flesch: 84
     summary: References [1] Vasiliev, M. A.: Fortsch. Phys. B 291, 141 (1987), Annals Phys. 177, 63 (1987), Vasiliev, M. A.: Phys.
    keywords: ads; arxiv; cubic; field; fronsdal; gauge; hep; higher; interaction; jhep; lagrangian; lett; modes; nucl; phys; rev; s(s; spin; tsulaia
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        item: #179 of 1243
          id: ap-1362
      author: Palese, M.; Winterroth, E.
       title: Infinitesimal Algebraic Skeletons for a (2 + 1)-dimensional Toda Type System
        date: 2011-01-02
       words: 3514
      flesch: 70
     summary: An algebraic skeleton on V is a triple (E, G, ρ), with G a (possibly infinite-dimensional) Lie group, E = V ⊕ g, g the Lie algebra of G, and ρ a repre- sentation of G on E (infinitesimally of g on E) such that ρ(g)x = Ad(g)x, for g ∈ G, x ∈ g. Let Z be a manifold of type V (i.e. ∀z ∈ Z, TzZ � V ). Keywords: Toda type system, integrability, infinitesimal skeleton, tower, Cartan connection.
    keywords: absolute; algebra; algebraic; cartan; connection; conservation; continuous; different; dimensional; equations; forms; group; infinitesimal; integrability; l(ξ; laws; lie; math; nonlinear; parallelism; particular; phys; problem; prolongation; p̄(ξ; representation; skeleton; structure; symmetries; system; terms; toda; tower; type; ∧dz
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        item: #180 of 1243
          id: ap-1364
      author: Poghosyan, V. S.; Priezzhev, V. B.
       title: The Problem of Predecessors on Spanning Trees
        date: 2011-01-02
       words: 2905
      flesch: 74
     summary: The known equivalence between the loop erased random walk (LERW) and the directed path on the spanning tree states that P(1) is the probability for the LERW started at i to reach the neighboring site j. 51 No. 1/2011 The Problem of Predecessors on Spanning Trees V. S. Poghosyan, V. B. Priezzhev Abstract We consider the equiprobable distribution of spanning trees on the square lattice.
    keywords: fixed; large; lattice; lerw; lett; loop; model; nearest; p(1; p(r; path; phys; predecessors; priezzhev; probability; problem; random; rev; ruelle; set; site; spanning; square; stat; tree; vertex; walk
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        item: #181 of 1243
          id: ap-1366
      author: Schulze-Halberg, A.
       title: Propagators of Generalized Schrödinger Equations Related by First-order Supersymmetry
        date: 2011-01-02
       words: 3608
      flesch: 73
     summary: 51 No. 1/2011 Propagators of Generalized Schrödinger Equations Related by First-order Supersymmetry A. Schulze-Halberg Abstract Weconstruct an explicit relation betweenpropagators of generalized Schrödinger equations that are linkedbyafirst-order supersymmetric transformation. We re- strict ourselves to first-order SUSY transformations of generalized Schrödinger equations, a brief review of which and of related theory is given in section 2.
    keywords: boundary; case; discrete; dψ0,x; equation; e→e0; f(y)h(y; function; generalized; green; k0(x; k1(x; lim; means; note; problem; propagators; relation; solutions; spectrum; susy; value; vol; ψ0(y; ∣∣∣∣∣
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        item: #182 of 1243
          id: ap-1368
      author: Shilin, I. A.; Nizhnikov, A. I.
       title: Some Formulas for Legendre Functions Induced by the Poisson Transform
        date: 2011-01-02
       words: 2029
      flesch: 89
     summary: mn−2 ≥ 0, K = (k0, k1, . . . ,0,sinhα) and put K = (0, . .
    keywords: cone; formulas; functions; group; i=1; moscow; subgroup; transform; vol
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        item: #183 of 1243
          id: ap-1370
      author: Takasaki, K.
       title: Toda Tau Functions with Quantum Torus Symmetries
        date: 2011-01-02
       words: 1465
      flesch: 74
     summary: Keywords: Toda hierarchy, melting crystal model, quantum torus algebra. Toda hierarchy [5] is given by τ(s, T , T̄)= 〈s|exp ( ∞∑ k=1 TkJk ) gexp ( − ∞∑ k=1 T̄kJ−k ) |s〉, (10) where T =(T1, T2, · · ·) and T̄ =(T̄1, T̄2, · · ·) are time variables of the Toda hierarchy, 〈s| and |s〉 are the ground states 〈s| = 〈−∞| · · · ψ∗s−1ψ ∗ s , |s〉 = ψ−sψ−s+1 · · · | − ∞〉 in the charge-s sector of the Fock space, and g is an element of GL(∞)= exp ( gl(∞) ) .
    keywords: algebra; exp; function; hierarchy; k)m; k=1; math; model; quantum; relations; shift; symmetries; takasaki; tau; toda; torus; τ(s
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        item: #184 of 1243
          id: ap-1372
      author: Catto, S.; Choun, Y.
       title: Supersymmetry in the Quark-Diquark and the Baryon-Meson Systems
        date: 2011-01-02
       words: 2551
      flesch: 74
     summary: In the above equation n∑ n=0 (−1)n(nr −1)!(nr + l − 12)! The diagonal pieces are bilocal fields representing color singlet 1+35 mesons and 1+35+405 exotic mesons, respectively, with respect to the subgroup SU(3)c × SU(6) of the algebra.
    keywords: antidiquark; catto; color; components; dab; dimensional; fields; function; mass; mesons; new; quark; representation; respect; scalar; su(3)c; su(6/1; supergroup; supersymmetry; system; york
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        item: #185 of 1243
          id: ap-1374
      author: Ficker, T.; Martišek, D.; Jennings, H. M.
       title: Surface Roughness and Porosity of Hydrated Cement Pastes
        date: 2011-01-03
       words: 5186
      flesch: 50
     summary: In our preliminary study [9], it was illustrated that, in addition to the roughness numbers RN, there are very promising surface parameters of another kind called the sur- face profile (SP) and surface roughness (SR) pa- rameters derived from three-dimensional (3D) dig- ital replicas of fracture surfaces. RN numbers quan- tify the increase in the area of fracture surfaces, i.e. they are overall area characteristics, whereas SP/SR parameters evaluate surface irregularities, i.e. they quantify height differences on fracture reliefs.
    keywords: 20×; acta; behavior; cement; cement ratio; components; dependents; different; f(xi; fig; figure; fracture; fracture surfaces; function; graphs; hydrated; irregularities; irregularity; larger; length; linear; magnification; materials; parameters; pastes; polytechnica; porosity; profile; profile parameters; quantities; ratio; ratio r; results; roughness; roughness parameters; scales; source; spa; spc; specimens; spp; spq; spv; spz; sra; srp; srq; srv; statistical; surface; values; vol; water
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        item: #186 of 1243
          id: ap-1376
      author: Ficker, T.
       title: Fracture Surfaces of Porous Materials
        date: 2011-01-03
       words: 2126
      flesch: 56
     summary: [4] Lange,D.A., Jennings,H.M., Shah,S.P.: Rela- tionship between fracture surface roughness and fracture behavior of cement paste and mortar, J. Am. Keywords: roughness analysis, fracture surfaces, cement-based materials, confocal microscopy.
    keywords: analysis; behavior; capillary; cement; dependence; figure; fracture; function; graphs; ha(p; height; irregularities; jennings; lange; linear; materials; pastes; porosities; porosity; profile; roughness; shah; small; specimens; surfaces; value
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        item: #187 of 1243
          id: ap-1378
      author: Hilar, M.
       title: 3D Modelling of a Tunnel Re-excavation in Soft Ground
        date: 2011-01-03
       words: 3239
      flesch: 53
     summary: The model was prepared for analysing the conditions input into the 2D calcu- lations (location of geotechnical units, input param- eters, tunnel lining, etc.) 51 No. 3/2011 Fig. 11: Tunnel construction under micropile umbrellas the horizontal jet grouting columns (to increase their stiffness), but like the jet grouting columns drilled into the face, this approach was finished after the third section.
    keywords: acta; area; bench; calculations; collapsed; concrete; conditions; construction; excavation; face; figure; ground; heading; invert; lining; measures; method; modelling; monitoring; parameters; pile; pile walls; polytechnica; pre; primary; results; sprayed; stability; support; tunnel; tunnel lining; vault; vol; walls
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        item: #188 of 1243
          id: ap-1380
      author: Kutílek, P.; Hozman, J.
       title: Determining the Position of Head and Shoulders in Neurological Practice with the use of Cameras
        date: 2011-01-03
       words: 3492
      flesch: 53
     summary: In our recent method for studying only head po- sition [5], two cameras are required for determining head positions. The reason for this is the large devia- tion of head position from the optimum location in the middle distance between the two cameras, which causes large differences in the distances between the CCD sensors (cameras) and the measured head and shoulders.
    keywords: acta; anatomical; angle; arcsin; axes; axis; cameras; ccd; clinical; const; coordinates; correction; displacement; distance; fig; flexion; head; image; inclination; left; measured; measurement; method; mutual; neurological; optical; polytechnica; position; posture; practice; profile; right; rotation; sensors; shoulders; software; system; technique; tragus; use; vol
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        item: #189 of 1243
          id: ap-1382
      author: Litecká, J.; Fabianová, J.; Pavlenko, S.
       title: Relation between Cutting Surface Quality and Alloying Element Contents when Using a CO2 Laser
        date: 2011-01-03
       words: 2629
      flesch: 59
     summary: The experimental results are shown in graphs which illustrate the suitability of materials for achieving required cutting surface quality parameters. 51 No. 3/2011 3 Description of the experiment The following materials were chosen for an exper- iment to determine the quality characteristics of material cutting using a CO2 laser with different structures, i.e. with different alloys: S355J2C+N, QStE380TM and S2355JR.
    keywords: acta; chemical; cutting; experiment; fig; figure; gas; high; iso; kosice; laser; lower; material; measured; measurement; mechanical; microhardness; parameters; polytechnica; prešov; properties; quality; results; roughness; s355j2c+n; sample; speed; steel; surface; table; value; vickers; vol
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        item: #190 of 1243
          id: ap-1384
      author: Stefanovič, M.; Vrbová, M.
       title: Optimization of a Water Window Capillary Discharge Radiation Source
        date: 2011-01-03
       words: 3267
      flesch: 57
     summary: Keywords: water window radiation, capillary discharge, soft X rays, nitrogen plasma. Capillary pinching discharge as water window radiation source.
    keywords: absorption; capillary; channel; code; current; density; discharge; distribution; electric; electrodes; electron; field; figure; filling; gas; geometry; group; high; initial; ions; line; maximum; nitrogen; output; parameters; plasma; power; pressure; radial; radiation; radius; shielded; source; spectral; temperature; time; water; window
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        item: #191 of 1243
          id: ap-1386
      author: Vaněček, D.; Jirsa, J.
       title: Electronic Education
        date: 2011-01-03
       words: 4610
      flesch: 58
     summary: Keywords: e-learning, LMS, computer animation. We will fo- cus on computer animations, which are discussed in greater detail in the second and third parts of this paper.
    keywords: acta; adobe; animation; available; basic; browser; classical; computer; content; course; development; e.g.; education; electronic; elements; features; file; flash; frames; graphic; idea; information; interactive; internet; knowledge; lcms; learning; lms; media; multimedia; necessary; need; new; paper; parts; pictures; polytechnica; principle; screenshots; second; size; software; speed; students; study; suitable; support; systems; teacher; teaching; technical; technologies; technology; time; use; user; vividness; vol; way; web; wink
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        item: #192 of 1243
          id: ap-1388
      author: Vaněček, D.; Jirsa, J.
       title: A Taxonomy of Technical Animation
        date: 2011-01-03
       words: 1514
      flesch: 47
     summary: Our aim is to show the taxonomy of education animation. This article deals with computer animation in technical education.
    keywords: acta; animation; computer; didactic; dimensional; education; example; fig; figure; heat; model; motivational; polytechnica; praha; presentation; process; simulation; specific; stroke; student; taxonomy; technology; topic; vaněček; vol
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        item: #193 of 1243
          id: ap-1390
      author: Vaněček, D.; Jirsa, J.
       title: Practical Implementation of Animation for Students of Pedagogical Studies at MIAS CTU in Prague
        date: 2011-01-03
       words: 2936
      flesch: 59
     summary: ap-3-11.dvi Acta Polytechnica Vol. 51 No. 3/2011 Practical Implementation of Animation for Students of Pedagogical Studies at MIAS CTU in Prague D. Vaněček, J. Jirsa Abstract This paper shows computer animation as a teaching and learning instrument in technical education. Our aim is to show good practice in creating computer animations.
    keywords: acta; adobe; animated; animation; approach; appropriate; cabin; computer; concept; educational; figure; flash; following; implementation; individual; internet; layers; learning; line; necessary; order; paper; piloting; polytechnica; product; rotor; school; simple; specific; stage; students; symbols; technical; testing; topic; type; use; vol
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        item: #194 of 1243
          id: ap-1392
      author: Amore, P.; Fernández, F. M.
       title: Rational Approximation to the Solutions of Two-Point Boundary Value Problems
        date: 2011-01-04
       words: 3189
      flesch: 79
     summary: Keywords: nonlinear differential equations, Ginzburg-Landau, Wilson’s renormalization, Wegner-Houghton, Riccati equation, Padé-Hankel method. The purpose of this paper is to investigate whether a kind of Padé-Hankel method may be use- ful for two-point boundary value problems given by nonlinear ordinary differential equations.
    keywords: approach; boundary; coefficients; convergence; differential; equation; fernández; hankel; method; phys; point; problems; references; sequences; series; solution; table; value; −0.461; −1.588
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        item: #195 of 1243
          id: ap-1394
      author: Brody, D. C.; Graefe, E. M.
       title: Coquaternionic Quantum Dynamics for Two-level Systems
        date: 2011-01-04
       words: 4264
      flesch: 68
     summary: For this purpose, let us write i = 1 ν (iu2 + ju4 + ku5), (12) where ν = √ u22 − u24 − u25 if u24 + u25 < By differentiating σl in t for each l and using the dynamical equation (14), we deduce, after rearrange- ments of terms, the following set of generalised Bloch equations: 1 2 σ̇1 = νσ3 − u3 ν (u2σ2 + u4σ4 + u5σ5) 1 2 σ̇2 = 1 ν (u2u3σ1 − u1u2σ3 + u0u5σ4 − u0u4σ5) 1 2 σ̇3 = −νσ1 + u1 ν (u2σ2 + u4σ4 + u5σ5) (16) 1 2 σ̇4 = 1 ν (−u3u4σ1 + u0u5σ2 + u1u4σ3 + u0u2σ5) 1 2 σ̇5 = 1 ν (−u3u5σ1 − u0u4σ2 + u1u5σ3 − u0u2σ4), where we have assumed u24 + u 2 5 < u 2 2 so that ν =√ u22 − u24 − u25.
    keywords: acta; complex; conjugate; coquaternionic; dynamical; dynamics; eigenvalues; energy; equations; evolution; form; hamiltonian; hermitian; hyperbolic; imaginary; mechanics; open; orbits; phys; polytechnica; q22; q23; quantum; real; reduced; space; state; state space; symmetric; system; time; u22; u24; u25; unitary; use; variables
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        item: #196 of 1243
          id: ap-1396
      author: Jones, H. F.
       title: Perturbation Theory for PT-Symmetric Sinusoidal Optical Lattices at the Symmetry-Breaking Threshold
        date: 2011-01-04
       words: 3108
      flesch: 74
     summary: 2(k0 + 1 2kB )√ (w2 + 4iz) (14) η2 = kB z − x + 12iw 2(k0 + 1 2kB )√ (w2 + 4iz) . In that case, as long as w2 � 4z the arguments may be treated as effectively real, and each error function behaves like a sign function of its argument (see Figure 2(a)), so that the sum of the two behaves like the step func- tion θ(kB z − |x|).
    keywords: 4iz; amplitude; behaviour; case; equation; error; form; functions; jordan; large; lett; linear; order; perturbation; phys; propagation; ref; rev; second; theory; wave
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        item: #197 of 1243
          id: ap-1398
      author: Kalina, M.
       title: Two Remarks to Bifullness of Centers of Archimedean Atomic Lattice Effect Algebras
        date: 2011-01-04
       words: 4722
      flesch: 85
     summary: such that i �= j. � � �� � � � � � � � � � � p1 p2 p3 p4 p5 p6 pn pn+1 � � �� � � � � � � � � � � a0 b0 a1 b1 a2 b2 an bn � � � � � � � � � � � � � � � � c1 c2 c3 cn−1 d1 d2 d3 dn−1 Fig. For κ ∈ E we get complete atomic Boolean algebras B̃κ generated by sets of atoms Ãκ = ⋃ i∈J {pi} ∪ {aκ, bκ} ∪ ⋃ i ∈ J i > κ {ai, bi}.
    keywords: algebra; archimedean; atomic; atoms; bifull; boolean; c(e; center; complete; effect; elements; exists; lattice; orthomodular; riečanová; s(e; set; sets; sublattice
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        item: #198 of 1243
          id: ap-1400
      author: Kirillov, O. N.
       title: Singularities in Structural Optimization of the Ziegler Pendulum
        date: 2011-01-04
       words: 6455
      flesch: 60
     summary: The proof of optimality in non-conservative optimization problems is a mathematical challenge related to multiple eigenvalues, singularities in the stability domain, and non-convexity of the merit functional. This phenomenon has been observed in many numerical studies of non-conservative optimization problems [4, 6, 7, 9, 10, 13, 14, 17, 18] and was described analytically by Kirillov and Seyranian in [27, 28].
    keywords: acta; beck; boundary; case; coefficients; column; conservative; corresponds; critical; critical flutter; critical load; damping; design; divergence; eigenvalues; equation; extrema; figure; finite; flutter; flutter load; follower; free; function; increase; journal; kirillov; link; load; local; mass; masses; maximum; non; optimal; optimization; pendulum; point; polytechnica; problems; singularities; stability; stiffness; structural; surface; systems; umbrella; undamped; vertical; vibration; vol; whitney; ziegler
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        item: #199 of 1243
          id: ap-1402
      author: Kisil, V. V.
       title: Erlangen Programme at Large 3.2 Ladder Operators in Hypercomplex Mechanics
        date: 2011-01-04
       words: 6037
      flesch: 69
     summary: Then there is an additional pair of hyperbolic ladder operators, which are identical (up to factors) to (26): L±j = X̃ ∓ jỸ = jq ± jh d dq . 51 No. 4/2011 Table 1: The action of hyperbolic ladder operators on a 2D lattice of eigenspaces.
    keywords: acta; action; algebra; case; classical; clifford; corresponding; double; dq2; dual; eigenvalues; eigenvectors; elliptic; equations; following; form; fsb; functions; group; hamiltonian; harmonic; heisenberg; hyperbolic; hypercomplex; kisil; ladder; ladder operators; lie; linear; l±h; mathematical; mechanics; non; numbers; operators; oscillator; parabolic; phase; polytechnica; principle; quantum; representation; respective; shale; similarity; sp(2; sp2; space; subgroups; symplectic; s̃p(2; theory; vol; weil; z̃/2; ρswh̄
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        item: #200 of 1243
          id: ap-1404
      author: Kotvytskiy, A. T.; Kruchkov, D. V.
       title: Dynamical Symmetry Breaking in RN Quantum Gravity
        date: 2011-01-04
       words: 2952
      flesch: 69
     summary: Thus, we obtain the final form of the second vari- ation δ(2)Sg = 1 2M2 ∫ d4x ( √ −g · ( N RN−1h2 + 1 2 N (N − 1)RN−2h21 ) − N 2 √ −g hμν K μν RN−1h1 − (25) hμν hαβ F μναβ 2 √ −g RN − (hμν K μν )2 8 √ −g3 RN ) . Rμν � 1 2 ( ημν − hμν + hμρhνρ ) × (13)( ∂α∂μh α ν − ∂α∂ αhμν − ∂μ∂ν h
    keywords: action; background; breaking; case; corrections; dynamical; dyson; effect; equations; exact; field; flat; following; formalism; gravitational; gravity; hμν; metric; model; order; phys; propagator; quantum; schwinger; second; shil’nov; space; symmetry; time
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        item: #201 of 1243
          id: ap-1406
      author: Masáková, Z.; Pelantová, E.
       title: Ito-Sadahiro numbers vs. Parry numbers
        date: 2011-01-04
       words: 4310
      flesch: 79
     summary: Keywords: numeration systems, negative base, Pisot number, Parry number. 51 No. 4/2011 Ito-Sadahiro numbers vs. Parry numbers Z. Masáková, E. Pelantová
    keywords: acta; algebraic; base; coefficients; conjugates; d−β; expansions; form; i=0; infinite; integer; ito; minimal; negative; number; numeration; parry; periodic; perron; pisot; polynomial; proof; properties; q(β; real; sadahiro; set; system; theorem; word
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        item: #202 of 1243
          id: ap-1408
      author: Paseka, J.; Janda, J.
       title: More on PT-Symmetry in (Generalized) Effect Algebras and Partial Groups
        date: 2011-01-04
       words: 6796
      flesch: 85
     summary: In such a case the set E(H) of effects is the set of all self-adjoint operators A on a Hilbert space H between the null operator 0 and the identity operator 1 and endowed with the partial operation + defined iff A + B is in E(H), where + is the usual operator sum. if A + B is unbounded and (D(A)= D(B) or one out of A, B is bounded) , (A + B)b if A + B is bounded and D(A)= D(B), undefined otherwise and ≤ be a relation on Gr(H) defined for A, B ∈ Gr(H) by A ≤ B iff there is a positive linear operator C ∈ Gr(H) such that B =
    keywords: algebra; b)b; cases; commutative; complex; d(a; d(b; d(c; dimensional; effect; following; generalized; gr(h; grd; group; hermitian; hilbert; infinite; linear; operator; partial; positive; set; sgr(h; space; theorem; unbounded; wop
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        item: #203 of 1243
          id: ap-1410
      author: Riečanová, Z.; Zajac, M.
       title: Extensions of Effect Algebra Operations
        date: 2011-01-04
       words: 4335
      flesch: 81
     summary: ∈ E and partial binary op- eration ⊕ satisfying for any x, y, z ∈ E the conditions (GE1) x ⊕ y = y ⊕ x if one side is defined, (GE2) (x ⊕ y) ⊕ z = x ⊕ (y ⊕ z) if one side is defined, (GE3) We say that the operation ⊕2 extends ⊕1 (written ⊕1 ⊂ ⊕2) if for any a, b ∈ E the existence of a ⊕1 b implies that a ⊕2 b exists and a ⊕2 b =
    keywords: algebra; d(a; d(h; definition; effect; generalized; hilbert; linear; operators; partial; set; space; sub; sum; v(h
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        item: #204 of 1243
          id: ap-1412
      author: Riečanová, Z.
       title: Effect Algebras of Positive Self-adjoint Operators Densely Defined on Hilbert Spaces
        date: 2011-01-04
       words: 3539
      flesch: 76
     summary: Moreover, A⊕B (for A, B ∈ V(H)) and A ⊕S B (for A, B ∈ Sp(H)) coincide with the usual sum of operators A, B when at least one of them is bounded. An operator A : D(A) → H is called closed if for every sequence (xn)n∈N, xn ∈ D(A), such that xn → x ∈ H and Axn → y ∈ H as n → ∞ one has x ∈ D(A) and Ax = y. Since A ∈ V(H) is positive and hence also symmetric (see [3], p. 142) there exists a closed operator
    keywords: adjoint; algebra; d(a; effect; exists; generalized; hilbert; linear; operation; operators; partial; positive; self; sp(h; space; theorem; unbounded; usual; v(h
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        item: #205 of 1243
          id: ap-1414
      author: Rivers, R. J.
       title: Path Integrals for (Complex) Classical and Quantum Mechanics
        date: 2011-01-04
       words: 4818
      flesch: 72
     summary: For reasons that will rapidly become clear, we shall initially restrict ourselves to Hermitian Hamil- tonians, even though part of the original motivation for considering complex phase space was to accom- modate pseudo-Hermitian Hamiltonians which, by virtue of PT-symmetry, had real spectra. 51 No. 4/2011 4 Complex Classical Mechanics (CCM) We now consider complex phase space, repeating the analysis of Smilga
    keywords: acta; behaviour; bender; ccm; classical; classical mechanics; complex; dimensions; energy; extended; formalism; gozzi; hamiltonian; hcl(ϕ; integral; lett; mechanics; mfqm; o(h̄; particle; path; phase; phase space; phys; polytechnica; quantum; quantum mechanics; quasi; real; similarities; solutions; space; systems; time; trajectories; tunnelling; variables; vol
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        item: #206 of 1243
          id: ap-1416
      author: Shapiro, B.; Tater, M.
       title: Polynomial Solutions of the Heun Equation
        date: 2011-01-04
       words: 2452
      flesch: 71
     summary: Given a pair of polynomials {Q, P } and a positive integer n find all polynomials V such that (1) has a polynomial solution S of degree n. Polynomials V are referred to as Van Vleck poly- nomials and polynomials S as Stieltjes polynomials. Figure 3 suggests that the asymptotic root distribution of Van Vleck polynomials has a more complicated structure than before.
    keywords: asymptotic; case; corresponding; distribution; equation; heun; measure; polynomials; results; roots; sequence; shapiro; spectral; stieltjes; support; van; vleck; zeros
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        item: #207 of 1243
          id: ap-1418
      author: Wunner, G.; Cartarius, H.; Koeberle, P.; Main, J.; Rau, S.
       title: Exceptional Points for Nonlinear Schroedinger Equations Describing Bose-Einstein Condensates of Ultracold Atomic Gases
        date: 2011-01-04
       words: 4239
      flesch: 59
     summary: 2π, with radius r = 10−8 is per- formed around the critical scattering length N2a/au = −3π/8. From (3) it can be seen that these solutions only exist for N2a/au ≥ −3π/8. Accurate numerical stationary solutions of (1) can be determined by direct outward integration start- ing with suitable initial conditions at r = 0
    keywords: acta; atoms; bifurcation; bose; chemical; circle; complex; condensates; critical; dipole; einstein; energy; equation; exceptional; field; figure; functions; gaussian; gross; interaction; length; long; main; mean; permutation; phys; pitaevskii; point; polytechnica; potential; radius; range; results; rev; scattering; solutions; state; stationary; values; variational; vol; wave
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        item: #208 of 1243
          id: ap-1420
      author: Znojil, M.
       title: The Horizons of Observability in PT-symmetric Four-site Quantum Lattices
        date: 2011-01-04
       words: 5887
      flesch: 70
     summary: One of the bound- aries (viz., the doublet of hyperbolas W (a, 0, c) = 0) describes in fact a sign-non-changing (i.e., the reality- of-energies non-changing) curve of the doubly degen- erate (and, hence, irrelevant and removable) zeros of the function W (a, 0, c) = (8 + c2 − a2)2. This recipe generates the two auxiliary roots 4 s = 4 s(±) = 20 − 2 a2 − 2 c2 − 4 b2 ± 2 √ W (a, b, c) where we already know the function of Eq.
    keywords: acta; attention; auxiliary; boundaries; boundary; case; circle; circular; connected; coupling; curves; d(h; d(p; decrease; domain; dynamical; elementary; energies; fact; figure; form; general; h(s; hamiltonian; hilbert; interior; lattice; line; math; mathematical; mechanics; model; new; non; phys; physical; polytechnica; present; q(a; quantum; real; ref; refs; site; small; space; spectra; straight; strong; symmetric; theor; vol; znojil
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        item: #209 of 1243
          id: ap-1422
      author: Bartošek, J.
       title: A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting
        date: 2011-01-05
       words: 3181
      flesch: 64
     summary: Secondly, temporal forgetting is applied in order to avoid penalizing pitch jumps after prosodic pauses of one speaker or changes in pitch connected with turn-taking in dialogs. This is the lowest frequency on which the signal is periodic, and we sense this frequency as the height (pitch) of the sound.
    keywords: acta; algorithm; best; candidate; cents; detection; difference; domain; er[n; errors; forgetting; frame; frequency; function; fundamental; geh; gross; higher; lower; methods; mnbfcv2; mnfbc; pda; pitch; polytechnica; precision; probability; procedure; processing; prosodic; range; rate; results; signal; speech; table; temporal; threshold; time; transition; unvoiced; viterbi; vol; xw2
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        item: #210 of 1243
          id: ap-1424
      author: Brejcha, M.
       title: A Wideband Low-Pass Filter for Differential Mode Distortion
        date: 2011-01-05
       words: 2061
      flesch: 65
     summary: Keywords: filter, filtering, low-pass, wideband, EMC, differential mode. Ordinary filters are usually proposed for filtering the distortion from 150 kHz to 30 MHz.
    keywords: attenuation; band; capacitors; circuit; converter; corrective; fig; figure; filter; frequency; impedance; inductance; inductor; khz; low; mhz; parameters; parasitic; parts; resonant; section; switching; values
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        item: #211 of 1243
          id: ap-1426
      author: Brueser, Ch.
       title: Unobtrusive Non-Contact Detection of Arrhythmias using a “Smart” Bed
        date: 2011-01-05
       words: 3415
      flesch: 57
     summary: Our work prepares the way for future research on fully automatic algorithms for detecting arrhyth- mias in BCG signals. [5] Kortelainen, J. M., Virkkala, J.: FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat in- terval, Proc.
    keywords: aachen; acta; activity; arrhythmias; atrial; bcg; bed; cardiac; cardiopulmonary; cardioversion; clinical; ecg; electromechanical; emfi; estimation; estimators; fibrillation; figure; frequency; germany; heart; hospital; ieee; lines; long; mattress; measurement; monitoring; non; normal; order; patients; peaks; polytechnica; psd; rate; reference; sensor; signal; sinus; spectral; spectrograms; study; subject; system; time; university; unobtrusive; vol
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        item: #212 of 1243
          id: ap-1428
      author: Černý, V.
       title: Topology Control with Anisotropic and Sector Turning Antennas in Ad-hoc and Sensor Networks
        date: 2011-01-05
       words: 4686
      flesch: 59
     summary: Keywords: ad-hoc network simulation, interference, antenna radiation patterns,mobile network simulation, Omnet++, topology control, interference, sector antennas, rotating antennas, wireless networks, anisotropic antennas, sensor net- works. Pmin execute: • exchange NT tables with neighbours; • test connectivity with neighbours through intermediate nodes (acting as relays); • if no nodes missing P = P −ΔPmin; • else P = P +ΔPmin and end while cycle.
    keywords: acta; algorithms; anisotropic; antenna; case; cluster; condition; connectivity; control; dbi; dbm; distribution; example; execute; fig; figure; gain; graph; imin; interference; level; lobe; model; neighbours; network; nodes; number; parameters; pattern; pmax; pmin; polytechnica; power; radiation; radio; receiver; rmin; sector; sta; step; topology; total; transmitter; turning; uniform; vol; δθmin
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        item: #213 of 1243
          id: ap-1430
      author: Drnek, K.
       title: Prague’s Water Supply Station in Podolí — a Solution for the Problems of Clean Water in the 1930s
        date: 2011-01-05
       words: 3144
      flesch: 72
     summary: His answer to the growing needs for more water was to build dual water pipelines to Prague, and to build more water plants to collect more water. Water supply plant inPodoĺı and Antońın Engel.
    keywords: building; city; clean; day; degree; engel; fig; filters; filtration; fine; floor; height; káraný; large; mesh; new; pipelines; plant; podoĺı; prague; prefilters; river; source; space; supply; system; vancl; vltava; vol; water; water plant; water supply
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        item: #214 of 1243
          id: ap-1432
      author: Faltin, P.; Chaisaowong, K.
       title: 3D Surface-based Detection of Pleural Thickenings
        date: 2011-01-05
       words: 2802
      flesch: 59
     summary: To evaluate the results, we measure both the totally de- tected volume of all thickenings, and the number of detected thickenings, for each patient. Fig. 7: Totally detected thickening volume depending on the size of the sliding convex hull Fig. 8: Detected number of thickenings depending on the size of the sliding convex hull 5 Discussion Neither an exactnumber of thickeningsnor the thick- ening volume could be determined because of the inter- and intra-reader variances.
    keywords: aachen; anatomical; computer; convex; data; detection; diagnosis; different; erosion; fig; figure; germany; healthy; hull; image; institute; level; lung; mask; model; number; pleural; results; rwth; segments; slice; step; structures; surface; thickenings; university; vol; volume
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        item: #215 of 1243
          id: ap-1434
      author: Ficker, T.
       title: Surface Morphology of Porous Cementitious Materials Subjected to Fast Dynamic Fractures
        date: 2011-01-05
       words: 1057
      flesch: 49
     summary: References [1] Ficker,T.,Martǐsek,D., Jennings,H.M.: Rough- ness of fracture surfaces andcompressive strength of hydrated cement pastes, Cem. [3] Ficker, T.: Fracture surfaces of porous materials, Acta Polytechnica 51(2011), no. 3, 21–24.
    keywords: cement; confocal; dimensional; dynamic; ficker; figure; fracture; height; hydrated; irregularities; materials; pastes; porous; profile; specimens; static; strength; surface
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        item: #216 of 1243
          id: ap-1436
      author: Gruenwald, O.
       title: Introduction to Modeling of Buying Decisions
        date: 2011-01-05
       words: 5043
      flesch: 53
     summary: The Kano model makes it possible to divide customer needs into a mandatory category, a one- dimensional category and an attractive category of requirements. The fourth type of question will evoke requirements that are already known, and consumers are aware about their expec- tations, but they have yet not been obtained in the product.
    keywords: acta; analysis; approach; attractive; buying; categories; category; choice; class; coefficient; conjoint; current; customer; decision; degree; dimensional; dominant; factors; importance; information; interview; kano; level; marketing; model; modeling; needs; number; opportunities; order; performance; polytechnica; process; product; purchasing; question; questionnaire; related; requirements; respondents; responses; result; satisfaction; satisfied; second; specific; students; study; survey; system; theory; type; university; use; vol
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        item: #217 of 1243
          id: ap-1438
      author: Hekrdla, M.
       title: Numerically Optimized Uniformly Most Powerful Alphabets for Hierarchical-Decode-and-Forward Two-Way Relaying
        date: 2011-01-05
       words: 3141
      flesch: 50
     summary: Table 1: Numerically optimized UMP alphabets Md Ns δ 2 min, not UMP δ 2 min, AA = AB δ 2 min, AA �= AB 2†) 1 4 4 4 4 1‡) 2 0.4 0.68 4†) 2 2.6 2 2.18 4 3 2.6 2.6 2.6 Alphabets † have the identical spectral efficiency r = log2 Md Ns = 1, where the extra dimensional- ity is taken as extra time-slots and a fair mutual comparison by minimal Euclidean distance can be made; here we need to reflect that the modulation should have the same mean symbol energy per time- slot (i.e. with the same mean power), thus in fact the case (Md = 4, Ns = 2, AA = AB), called a 4ary 2D-UMP alphabet, has δ2min = 4, which is directly equal to BPSK, and the alphabet (Md = 4, Ns = 2, AA �= AB), called a 4ary unequal 2D- UMP alphabet, then has δ2min = 4.36, which is bet- ter by 10log10 4.36 4 � 0.37dB than BPSK, see its hierarchical minimal distance in Figure 2 and the error performance comparison in Fig. In contrast to [9], whereUMP frequency-modulation alphabets have been designed, we face a problem of general UMP alphabet design with a natural unit mean symbol energy constraint, ε̄ = 1 Md Md−1∑ i=0 ||si||2.
    keywords: 4ary; alphabets; case; channel; coding; condition; data; decode; design; dimensional; distance; error; exclusive; fading; fig; forward; hdf; hierarchical; k=10db; linear; minimal; modulation; multi; network; optimization; parametrization; performance; problem; quaternary; rayleigh; relay; rice; rician; stage; strategy; symbol; terminals; ump; unequal; vol; way; wireless; zmd; δ2min
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        item: #218 of 1243
          id: ap-1440
      author: Krejčí, R.
       title: PhpHMM Tool for Generating Speech Recogniser Source Codes Using Web Technologies
        date: 2011-01-05
       words: 2535
      flesch: 60
     summary: About the author Robert Krejč́ı deals with digital signal processing and speech recognition focusing on optimisation of speech recogniser algorithms for systemswith limited hardware resources. For this purpose, the Speech Pro- cessing Group at the Department of Circuit Theory, CTU in Prague has been developing a “phpHMM” tool that facilitates and integrates the development of speech recognition algorithms to alternative hard- ware platforms.
    keywords: 0.000000e+00; 0.000000e+00 0.000000e+00; acta; algorithms; calculation; code; data; database; fig; file; hardware; input; language; methods; model; optimisation; output; parametrisation; phphmm; platform; polytechnica; processing; recogniser; recognition; results; server; signal; source; speech; speech recogniser; structures; text; time; tool; use; vol; web; words
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        item: #219 of 1243
          id: ap-1442
      author: Kříž, R.
       title: Chaos in GDP
        date: 2011-01-05
       words: 2570
      flesch: 63
     summary: Hurst exponent H is directly related to fractal di- mension D, because the maximum fractal dimension for a planar tracing is 2: D + H =2 (8) 2.4 Correlation dimension Correlationdimension (DC) describes thedimension- ality of the underlying process in relation to its ge- ometrical reconstruction in phase space. [9] Alligood, T. K., Sauer, D. T., Yorke, J. A.: CHAOS an introduction to dynamical systems. Springer, 2000.
    keywords: analysis; calculated; chaos; chaotic; correlation; data; deterministic; dimension; discrete; dynamical; economics; equation; exponent; fig; figure; fractal; function; gdp; gross; hurst; lyapunov; nonlinear; paper; phase; polytechnica; process; product; range; rescaled; series; set; space; system; time; trend; value; vol
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        item: #220 of 1243
          id: ap-1444
      author: Kunkemoeller, M.; Dietrich, P.; Pollow, M.
       title: Synthesis of Room Impulse Responses for Variable Source Characteristics
        date: 2011-01-05
       words: 3193
      flesch: 53
     summary: Room acoustic measurements nowadays only account for omnidirectional source characteristics. This motivates a measurement method that is capable of obtaining room impulse responses for these specific radiation patterns by using a superposition approach of several measurements with technically well-defined sound sources.
    keywords: aachen; acoustics; acta; angle; array; chassis; complex; domain; error; fig; figure; frequency; harmonics; impulse; institute; inverse; linear; loudspeaker; measurement; method; order; pattern; polytechnica; radiation; reference; representation; responses; results; room; setup; signal; single; sound; source; spherical; superposition; synthesis; target; technical; time; variances; vol; γ̂t
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        item: #221 of 1243
          id: ap-1446
      author: Obreja, R.; Edu, I. R.
       title: Limited Angle Torque Motors Having High Torque Density, Used in Accurate Drive Systems
        date: 2011-01-05
       words: 2305
      flesch: 58
     summary: Normal flux density diagram in the stator core area Fig. 22: Torque motor with a large air-gap in load condi- tions at 1A – magnetic field distribution 78 Acta Polytechnica Vol. Users nowadays require very high-performance limited angle torque motors with high density torque.
    keywords: air; angle; area; area fig; axis; axis fig; density; density diagram; diagram; field; fig; flux; flux density; gap; large; limited; magnet; magnet axis; magnetic; motor; normal; normal flux; stator; tangential; torque; vol
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        item: #222 of 1243
          id: ap-1448
      author: Petrák, V.; Krucký, J.; Vlčková, M.
       title: Boron Doped Nanocrystalline Diamond Films for Biosensing Applications
        date: 2011-01-05
       words: 2957
      flesch: 54
     summary: In this work we attempt to construct and disrupt supported lipid membranes (SLB) on boron doped nanocrystalline diamond (B-NCD). This is themain reason why the B-NCD sensor will work much more effectively with hydrogenated surfaces.
    keywords: absolute; acta; addition; band; bending; biomedical; change; circuit; czech; data; diamond; disruption; eis; electrode; equivalent; formation; frequency; impedance; lipid; liposomes; melittin; membrane; modeling; ncd; peptide; phase; polytechnica; prague; resistance; samples; sensor; slbs; solid; solution; supported; surface; technical; university; value; vol
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        item: #223 of 1243
          id: ap-1450
      author: Petráková, V.
       title: Optical Detection of Charged Biomolecules: Towards Novel Drug Delivery Systems
        date: 2011-01-05
       words: 2523
      flesch: 53
     summary: When comparing the effects observed on fluori- nated ND with the effects on oxidized ND, we find that the effect is much stronger for fluorinated ND. In our work, we study how surface modification of ND can change the color of ND luminescence (PL).
    keywords: acta; bond; cellular; centers; changes; charge; czech; delivery; density; diamond; different; drug; effect; figure; fluorinated; high; hydrogen; imaging; luminescence; modeling; molecules; nanodiamond; observed; polymers; polytechnica; properties; size; solution; spectra; states; surface; systems; temperature; vivo; vol; work
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        item: #224 of 1243
          id: ap-1452
      author: Safan, M. A.
       title: Performance of Beams Made of Low-cost Self-compacting Concrete in an Aggressive Environment
        date: 2011-01-05
       words: 6139
      flesch: 59
     summary: 3 Experimental study The experimental work included the manufacture of two sets of test beams. 51 No. 5/2011 Fig. 4: Exposure of test beams in an open environment under a sustained load Fig.
    keywords: aci; acta; aggregate; ash; beams; carbonation; cement; chloride; concrete; content; control; corroded; corrosion; cost; cracking; days; deflection; different; dolomite; ductility; durability; environment; exposure; failure; figure; fine; fly; fresh; fume; high; index; limestone; load; loading; low; main; materials; maximum; measured; mixes; penetration; percent; performance; polytechnica; powder; properties; rate; rebars; reduction; reinforcement; resistance; results; scc; self; service; silica; silica fume; specific; steel; stiffness; strength; structural; sustained; table; terms; test; test beams; type; ultimate; use; vol; water; weight; year
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        item: #225 of 1243
          id: ap-1454
      author: Schlebusch, T.
       title: Unobtrusive Health Screening on an Intelligent Toilet Seat
        date: 2011-01-05
       words: 3220
      flesch: 53
     summary: Keywords: monitoring of vital parameters, personal healthcare, ambient assisted living, electrocardiogram, bioimpe- dance, toilet seat. 51 No. 5/2011 Fig. 6: Comparison of toilet seat ECG with conventional lead 1 a) typical male b) typical female Fig. 7: Weight distribution on a toilet seat 4.2 ECG measurement An example of an ECGmeasurement is shown in Fi- gure 6.
    keywords: aachen; acta; amplifier; analysis; bioimpedance; bis; body; care; contact; current; daily; data; device; ecg; electrodes; electronics; engineering; figure; gel; health; heart; higher; home; human; hydro; ieee; impedance; intelligent; kim; layer; leonhardt; measurement; medical; monitoring; paper; parameters; patient; polytechnica; possible; rate; reference; results; right; seat; signal; subject; systems; toilet; toilet seat; typical; use; vol
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        item: #226 of 1243
          id: ap-1456
      author: Schommartz, A.; Eilebrecht, B.; Wartzek, T.; Walter, M.; Leonhardt, S.
       title: Advances in Modern Capacitive ECG Systems for Continuous Cardiovascular Monitoring
        date: 2011-01-05
       words: 3136
      flesch: 53
     summary: This principle can also achieve interference reduction in capacitive ECG measurements. Multi-channel cECG systems enable the extraction of ECG signals even in the presence of coupled interferences, due to the additional redundant information.
    keywords: aachen; acta; body; capacitive; cecg; chair; channel; contact; coupling; degree; dipl.-ing; ecg; eilebrecht; electrodes; engineering; feedback; figure; filter; frequency; gain; germany; high; ieee; impedance; information; lead; leonhardt; low; measurements; medical; monitoring; multi; patient; polytechnica; pressure; research; robust; signal; surface; systems; technique; technology; university; vol; years
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        item: #227 of 1243
          id: ap-1458
      author: Ulbrich, M.; Schauermann, A.; Leonhardt, S.
       title: The Influence of Heart and Lung Dynamics on the Impedance Cardiogram — A Simulative Analysis
        date: 2011-01-05
       words: 2509
      flesch: 51
     summary: Impedance changes have been computed for all points in time and both dynamic sources, so that in total 206 simulations have been conducted (see Fi- gure 5). Fig. 4: Simulation model and current density results All simulations have been calculated on a per- sonal computer with a 64 bit operating system, an IntelR© XeonR© 5240processorwith2coresand24GB RAM.
    keywords: aachen; acta; addition; bioimpedance; cardiography; change; conductivity; current; data; dynamic; engineering; figure; finite; fit; frequency; heart; high; human; icg; impedance; influence; lung; measured; model; physiological; polytechnica; resolution; results; signal; simple; simulations; sources; technique; technology; temporal; thorax; time; tissue; vol; volume
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        item: #228 of 1243
          id: ap-1460
      author: Vecka, J.
       title: Impacts of New EU and Czech Environmental Legislation on Heat and Electricity Prices of Combined Heat and Power Sources in the Czech Republic
        date: 2011-01-05
       words: 4111
      flesch: 56
     summary: Table 2: Pollution fees — current and proposed in CZK per ton Pollutant Dust SOx NOx VOC Current 3000 1000 800 2000 2012–2016 4200 1350 1100 2700 2017 6300 2100 1700 4200 2018 8400 2800 2200 5600 2019 10500 3500 2800 7000 2020 12600 4200 3300 8400 2021 14700 4900 3900 9800 2022 and further 29400 9800 7800 19600 3 Future of heat prices in the Czech Republic after 2012 In the case of heat prices, therewill be no direct impact on costs or revenues for these com- panies because of the heat price structure (regulated by the Energy Regulatory Office).
    keywords: allocation; allowances; benchmark; co2; coal; czech; decision; derogation; directive; district; efficiency; electricity; emission; energy; environmental; eua; eur; fees; free; fuel; future; gas; heat; heating; ied; impact; implementation; increase; legislation; limits; model; natural; new; pollution; price; producers; production; republic; respect; scenario; sources; table; technology; tool; trading; value; vol
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        item: #229 of 1243
          id: ap-1462
      author: Anisimova, E.; Páta, P.; Blažek, M.
       title: Stellar Object Detection Using the Wavelet Transform
        date: 2011-01-06
       words: 1721
      flesch: 60
     summary: Keywords: stellar object detection, wavelet transform. For each image there are in the first line: the number of detected stars with the coordi- nates found in the catalog, the number of detected stars not found in the catalog, the percentage of de- tected starswith coordinates found in the catalogout of the total number of objects in the catalog for the image (second row).
    keywords: algorithm; astronomical; background; catalog; coefficients; decomposition; detected; detection; image; level; light; number; objects; results; sextractor; stars; stellar; total; transform; trous; vol; wavelet; web
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        item: #230 of 1243
          id: ap-1464
      author: Gális, R.; Hric, L.; Kundra, E.; Münz, F.
       title: Cataclysmic Variables — X-rays and Optical Activity in V1223 Sgr and V709 Cas
        date: 2011-01-06
       words: 2381
      flesch: 64
     summary: X-ray emission is produced by the inter- action of the accreting matter with the WD surface. Typically, soft X-ray modulations were observed in the orbital period, in spin period ofWD, or a beat between the two in IPs.
    keywords: activity; analysis; astron; astrophys; band; bremsstrahlung; curves; cvs; data; emission; energy; fluxes; hard; ibis; integral; intermediate; ips; light; long; magnetic; objects; optical; orbital; panel; period; polars; ray; s−1; temperature; term; time; v1223sgr; variability
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        item: #231 of 1243
          id: ap-1466
      author: Hölzl, J.; Wilms, J.; Kreykenbohm, I.; Schmid, Ch.; Grossberger, Ch.; Wille, M.; Eikmann, W.; Brand, T.
       title: Observing Galaxy Clusters with eROSITA: Simulations
        date: 2011-01-06
       words: 1365
      flesch: 65
     summary: Galaxy clusters form inareasoverdensewith respect to themeanden- sity of the universe and therefore trace the large-scale structure, such that a statistically complete sample of clusters provides us with information about the cosmological parameters [4]. Amain objective of the survey is to observe galaxy clusters in order to constrain cosmological parameters and to obtain further knowledge about dark matter and dark energy.
    keywords: astrophys; catalogue; clusters; cosmological; dark; density; energy; erosita; evolution; function; galaxy; gamma; mass; matter; parameters; power; ray; redshift; simulation; sky; spectrum; survey; telescopes; universe
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        item: #232 of 1243
          id: ap-1468
      author: Hudec, R.; Blažek, M.; Hudcová, V.
       title: Czech Participation in INTEGRAL: 1996–2011
        date: 2011-01-06
       words: 4949
      flesch: 56
     summary: In this paper, we deal with examples of observa- tions and analyses of INTEGRAL data with Czech participation, focusing on two categories of objects, namely cataclysmic variables (CVs) and blazars. In addition, wehaveworkedon transferring ISDC s/w packages, further development of tools for effec- tive and interactive scientific analyses and the use of INTEGRAL data, further improving the quality of astrometry and photometry, and on operating the second (local) ISDC center/office (Ondrejov Integral Data Center, OIDC) at the Ondrejov Astronomical Institute, enabling the astronomical community in the Czech Republic and in Central and East Europe to participate in scientific activities related to IN- TEGRAL, data evaluation, data archiving, and in- terpretation.
    keywords: access; acta; analysis; archive; astronomical; available; blazars; camera; cases; cataclysmic; catalogue; center; code; cvs; czech; data; database; deg; development; energy; esa; et al; field; fig; fov; gamma; ground; hard; high; hudec; ibis; images; information; integral; involvement; ips; isdc; java; kev; kubanek; long; new; objects; observations; observatory; omc; optical; pages; participation; petr; pixel; polytechnica; provide; ray; related; republic; results; rts2; satellite; science; scientific; sources; space; telescope; test; time; tool; use; variables; view; vol; web; years
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        item: #233 of 1243
          id: ap-1470
      author: Hudec, R.; Pína, L.; Maršíková, V.; Inneman, A.; Skulinová, M.; Míka, M.
       title: Czech Contribution to Athena
        date: 2011-01-06
       words: 3827
      flesch: 57
     summary: 1 Introduction Design and development of X-ray optics have a long tradition in the Czech Republic (e.g. Hudec et al., 1991, 1999, 2000, 2001, Inneman et al. 1999, 2000). However, the application of this technology in X-ray optics is re- lated to the need to improve accuracy significantly andminimize errors.
    keywords: accuracy; alternative; athena; available; baez; czech; design; development; esa; foils; forming; future; glass; high; hudec; inneman; large; mirrors; optical; optics; order; parameters; prague; precise; process; project; ray; ray optics; republic; results; samples; si wafers; silicon; space; spie; substrates; surface; technologies; technology; telescopes; thermal; thickness; vol; wafers; wolter
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        item: #234 of 1243
          id: ap-1472
      author: Lewandowska, N.; Elsäesser, D.; Mannheim, K.
       title: Search for a Correlation Between Radio Giant Pulses and VHE Photons of the Crab Pulsar
        date: 2011-01-06
       words: 2016
      flesch: 63
     summary: 51 No. 6/2011 Search for a Correlation Between Radio Giant Pulses and VHE Photons of the Crab Pulsar N. Lewandowska, D. Elsäesser, K. Mannheim Abstract The Crab pulsar is a unique source of pulsar radio emission. Among the regular pulses, radio giant pulses (GPs) are known as a special form of pulsar radio emission.
    keywords: astrophysical; bilous; cherenkov; correlation; crab; emission; fermi; giant; gps; hankins; journal; kondratiev; lyutikov; model; observations; photons; proceedings; pulsar; pulses; radio; science; vol
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        item: #235 of 1243
          id: ap-1474
      author: Litzinger, E.; Pottschmidt, K.; Wilms, J.; Suchy, S.; Rothschild, R. E.; Kreykenbohm, I.
       title: Monitoring PSR B1509–58 with RXTE: Spectral analysis 1996–2010
        date: 2011-01-06
       words: 1454
      flesch: 70
     summary: 3: Pulse profiles for the energy range 3–43keV of PSR B1509–58 for the three major epochs 3, 4 and 5 5 Phase resolved spectra All pulsed (i.e., peak minus off-peak) and unpulsed (regular background) spectrawere summed to obtain averaged spectra for epochs 3–5, respectively. 51 No. 6/2011 Table 1: Best fit parameters for the phase averaged PCU2 spectra of calibration epoch 3–5 Parameter Epoch 3 Epoch 4 Epoch 5 Γ 2.022±0.001 2.021±0.001
    keywords: averaged; b1509–58; best; calibration; emission; epoch; fig; fit; law; line; monitoring; parameters; pcu2; phase; power; psr; pulse; resolved; sec; spectra; table; time; unpulsed
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        item: #236 of 1243
          id: ap-1476
      author: Meddi, F.; Ambrosino, F.; Rossi, C.; Nesci, R.; Sclavi, S.; Ruggieri, A.; Sestito, S.; Bruni, I.; Gualandi, R.
       title: A New Fast Silicon Photomultiplier Photometer
        date: 2011-01-06
       words: 1515
      flesch: 53
     summary: 51 No. 6/2011 Fig. 5: Power Spectra of the Crab Pulsar signal detected by MPPC0 (upper) and P3E0 (lower) Fig. : Crab Pulsar light curves folded by “efold” for MPPC0 (upper) and P3E0 (lower)
    keywords: astronomical; crab; data; detectors; electronic; fast; fig; figure; light; loiano; magnitude; mppc0; optical; p3e; photometer; pps; pulsar; pulse; ray; signal; sipm; system; telescope; time; unit
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        item: #237 of 1243
          id: ap-1478
      author: Mészáros, A.; Řípa, J.; Ryde, F.
       title: A Crazy Question: Can Apparently Brighter Gamma-ray Bursts Be Farther Away?
        date: 2011-01-06
       words: 1764
      flesch: 73
     summary: In these mainly statistical studies, akeyrole is playedby theassumption that— on average — apparently fainter bursts should lie in smaller redshifts. Here it is quite evident that some of the distant bursts exceed in their observed fluence and peak-fluxes the values of those with smaller redshifts.
    keywords: brighter; bursts; erg; fluences; fluxes; grbs; left; long; l̃(z; mészáros; observed; p(z; panel; peak; quadrants; redshifts; right; sample; swift; units
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        item: #238 of 1243
          id: ap-1480
      author: Obst, M.; Pottschmidt, K.; Lohfink, A.; Wilms, J.; Böck, M.; Smith, D. M.; Tomsick, J. A.; Kreykenbohm, I.
       title: GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole
        date: 2011-01-06
       words: 1621
      flesch: 68
     summary: Soft states are highlighted for episodes reaching a photon index above 2 Fig. During themonitoring, there are 7 occurrences of soft states with photon indices softer than 2.
    keywords: acta; black; emission; figure; flux; galactic; grs1758–258; hard; hardness; hid; hole; line; monitoring; observations; persistent; photon; polytechnica; pottschmidt; ridge; rxte; soft; source; spectrum; state; vol
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        item: #239 of 1243
          id: ap-1482
      author: Páta, P.
       title: Influence of the Lossy Compression JPEG2000 standard on the Deformation of PSF
        date: 2011-01-06
       words: 1253
      flesch: 53
     summary: Image compression based on the wavelet transform is nowadays very popular because of its nice properties. Keywords: Astronomical lossy image compression, PSFdeformation, Astronomical ContextCoder (ACC), JPEG2000.
    keywords: acta; algorithms; astronomical; compression; deformation; different; figure; function; image; imaging; influence; jpeg2000; lossy; object; paper; point; polytechnica; processing; psf; quality; spread; standard; system
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        item: #240 of 1243
          id: ap-1484
      author: Piotrowski, L. W.; Zarnecki, A. F.
       title: Analysis and Simulation of the Pi of the Sky Detector Response
        date: 2011-01-06
       words: 1789
      flesch: 55
     summary: 51 No. 6/2011 Fig. 5: Left: Comparison of the position determination accuracy from polynomial model profile astrometry and from ASASaperture astrometry, for stars brighter than 9m; 2 Laboratory measurements and modelling The derivation of a PSF requires a star profile with sub-pixel resolution, which can be obtained from a superposition of single star images.
    keywords: ccd; centre; data; diode; field; figure; frame; function; images; laboratory; large; left; measurements; model; optical; photometry; pixel; point; polynomial; position; prf; psf; results; right; sensitivity; signal; single; sky; spot; stars
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        item: #241 of 1243
          id: ap-1486
      author: Roháč, J.; Řeřábek, M.; Hudec, R.
       title: Multi-functional star tracker — future perspectives
        date: 2011-01-06
       words: 1634
      flesch: 50
     summary: Variousattitude reference sources canbe used for obtaining attitude information, e.g. Earth horizon sensors, which can be directed towards the Sun, Moon, or other planets and stars, Sun sensors, magnetometers, and star trackers (STs). The ST autonomously performs pattern recognition of stars in FoV, compares the re- sults with the star catalogue stored in the internal memory, and estimates the attitude.
    keywords: astronomical; attitude; camera; concept; current; czech; data; field; fov; function; idea; image; information; lens; multi; optical; power; prague; precise; processing; profile; sensors; sky; space; star; stellar; sts; systems; tracker; uwfc; wfst; wide
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        item: #242 of 1243
          id: ap-1488
      author: Siudek, M.; Batsch, T.; Castro-Tirado, A. J.; Czyrkowski, H.; Cwiok, M.; Dabrowski, R.; Jelínek, M.; Kasprowicz, G.; Majcher, A.; Majczyna, A.; Malek, K.; Mankiewicz, L.; Nawrocki, K.; Opiela, R.; Piotrowski, L. W.; Sokolowski, M.; Wawrzaszek, R.; Wrochna, G.; Zaremba, M.
       title: Pi of the Sky Telescopes in Spain and Chile
        date: 2011-01-06
       words: 1825
      flesch: 58
     summary: Keywords: Gamma Ray Burst (GRB), prompt optical emissions, optical flashes, nova stars, variable stars, robotic telescopes. Cameras with STA0820 2k ×
    keywords: acta; cameras; ccd; detector; fig; figure; final; flashes; gamma; gcn; institute; new; observations; observatory; optical; poland; polytechnica; prompt; prototype; ray; robotic; sky; spain; spda; stars; system; telescopes; time; unit; university; vol; warsaw
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        item: #243 of 1243
          id: ap-1490
      author: Siudek, M.; Malek, K.; Mankiewicz, L.; Opiela, R.; Sokolowski, M.; Zarnecki, A. F.
       title: Photometric Analysis of the Pi of the Sky Data
        date: 2011-01-06
       words: 1723
      flesch: 53
     summary: 51 No. 6/2011 Photometric Analysis of the Pi of the Sky Data M. Siudek, K. Malek, L. Mankiewicz, R. Opiela, M. Sokolowski, A. F. Żarnecki Abstract A database containing star measurements from the period 2006–2009 taken by the Pi of the Sky detector located in Las Campanas Observatory in Chile contains more than 2 billion measurements of almost 17 million objects. 51 No. 6/2011 Fig. 1: Precision dispersion of star brightness measurements from standard photometry for 200s exposures (20 coad- ded frames) from the Pi of the Sky prototype at the Las Campanas Observatory in Chile.
    keywords: analysis; average; correction; curve; data; database; detector; fig; figure; filters; interface; light; magnitudo; measurements; objects; order; photometry; precision; quality; reference; sky; spectral; stars; system; variable; vol; web
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        item: #244 of 1243
          id: ap-1492
      author: Švéda, L.; Landováa, M.; Míka, M.; Pína, L.; Havlíková, R.; Maršíková, V.
       title: Thermal Forming of Glass — Experiment vs. Simulation
        date: 2011-01-06
       words: 2124
      flesch: 59
     summary: Keywords: X-ray mirrors, Comsol Multiphysics, simulations, thermal forming, gravity forming, in-situ measurements, data processing. [3] Chen, Y.: Thermal forming process for precision freeform optical mirrors and micro glass optics, PhD thesis, The Ohio State University, 2010.
    keywords: data; doors; experiments; figure; forming; function; glass; image; measurements; method; optics; order; points; polytechnica; prague; process; processing; ray; sample; shape; shaping; simulation; speed; support; temperature; thermal; time; values; vol
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        item: #245 of 1243
          id: ap-1494
      author: Valtonen, M.; Sillanpää, A.
       title: 2005–2010 Multiwavelength Campaing of OJ287
        date: 2011-01-06
       words: 5688
      flesch: 70
     summary: [5] Sillanpää, A., Haarala, S., Valtonen,M. J., Sun- delius, B., Byrd,G.G.: Astrophys. [8] Valtonen, M. J.: Workshop onTwo Years of In- tensive Monitoring of OJ 287 and 3C66A, Pro- ceedings of the meeting held in Oxford.
    keywords: accretion; acta; astron; astrophys; band; binary; black; bremsstrahlung; curve; cycle; data; disk; et al; expected; extinction; figure; flux; galaxy; general; hole; host; jet; lehto; light; line; m. j.; mass; model; mon; nature; observations; oj287; optical; orbit; order; outburst; period; points; polarization; polytechnica; precessing; prediction; radiation; radio; ras; ref; relativity; secondary; september; sillanpää; spectrum; test; time; timing; valtonen; value; vol; year
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        item: #246 of 1243
          id: ap-1496
      author: Bagoly, Z.; Veres, P.; Horváth, I.; Mészáros, A.; Balázs, L. G.
       title: On the Relation Between GRB Classes and X-ray Flashes
        date: 2012-01-01
       words: 2129
      flesch: 64
     summary: The observational properties show that intermediate bursts are the softest among the three groups, meaning that their emission is concentrated to low-energy bands. 52 No. 1/2012 Table 1: Bivariate model parameters for the best-fitted (EEI) model.
    keywords: average; best; bic; bivariate; budapest; bursts; class; classification; component; definition; different; duration; energy; flashes; grbs; group; hardness; hungary; intermediate; long; model; parameters; population; ray; short; softest; swift; university; xrfs
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        item: #247 of 1243
          id: ap-1498
      author: Giovannelli, F.; Sabau-Graziati, L.
       title: The Intriguing Nature of the Cataclysmic Variable SS Cygni
        date: 2012-01-01
       words: 4805
      flesch: 70
     summary: Martinez-Pais et al. also determined that the optical companion of SS Cyg system is a K2–K3 late-type star. However, they cannot fit SS Cyg data by a simple model as white dwarf plus accretion disk.
    keywords: 1/2012; accretion; acta; apj; behaviour; cvs; cyg; data; disk; dwarf; emission; et al; field; gaudenzi; giovannelli; intermediate; ips; lines; luminosity; magnetic; martinez; multifrequency; nature; novae; optical; orbital; outburst; pais; panel; period; polar; polytechnica; quiescence; ray; ss cyg; system; s−1; vol; warner; white
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        item: #248 of 1243
          id: ap-1500
      author: Grossberger, C.; Kadler, M.; Wilms, J.; Müller, C.; Beuchert, T.; Ros, E.; Ojha, R.; Aller, M.; Aller, H.; Angelakis, E.; Fuhrmann, L.; Nestoras, I.; Schmidt, R.; Zensus, J. A.; Krichbaum, T. P.; Ungerechts, H.; Sievers, A.; Riquelme, D.
       title: Structural Variability of 3C 111 on Parsec Scales
        date: 2012-01-01
       words: 2501
      flesch: 67
     summary: 4 Summary In this paper, the ejection of new jet components on parsec scales were associated with a major flux density outburst of 3C 111 in 2007. It was shown that the major flux density outburst can be asso- ciated with the ejection of a primary jet component and secondary component.
    keywords: aller; apj; associated; component; core; data; density; ejection; epoch; et al; evolution; figure; flux; flux density; galaxies; jet; jets; major; model; outburst; polytechnica; primary; program; radio; region; secondary; source; time; trailing; vlba
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        item: #249 of 1243
          id: ap-1502
      author: Hudec, R.; Kopel, F.; Krapp, P.; Heber, U.; Cayé, W.
       title: The Optical Transient Search in the Bamberg Southern Sky Survey: Preliminary Results
        date: 2012-01-01
       words: 1907
      flesch: 56
     summary: We have identified a total of 189 suspicious objects (possible OT candidates according to notes in the measurement logs) found in 6 measurement logs, corresponding to a total of 5 004 fully investi- gated southern sky patrol plates. We have re-analysed these logs and re-detected and investigated relevant OT candidates.
    keywords: acta; afterglows; astronomical; bamberg; blinkmicroscope; candidates; fig; gamma; hudec; image; left; measurement; new; objects; observatory; optical; past; patrol; photographic; plates; ray; right; sky; southern; stars; study; surveys; total; variable; vol
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        item: #250 of 1243
          id: ap-1504
      author: Hudec, R.; Hudec, L.; Klíma, M.
       title: Ultra Low Dispersion Spectroscopy with Gaia and Astronomical Slitless Surveys
        date: 2012-01-01
       words: 3692
      flesch: 59
     summary: The motivation for studies comparing these two databases is as follows: (1) A comparison of the sim- ulated Gaia BP/RP images with those obtained from digitized Schmidt spectral plates (both using disper- sive elements) for 8 selected test fields, and (2) A fea- sibility study for application for the algorithms devel- oped for the plates for Gaia. Variability studies based on low dispersion spec- tra are expected to provide unique novel data, and can use the algorithms recently developed for auto- matic analyses of digitized spectral Schmidt plates.
    keywords: 1/2012; acta; algorithms; alpha; analyses; astronomical; czech; data; deg; digitized; dispersion; emission; emphasis; esa; examples; fig; figure; gaia; henize; hudec; image; institute; large; lds; lines; low; methods; objective; objects; pari; photometric; pixel; plates; polytechnica; prism; project; resolution; schmidt; sky; sonneberg; southern; spectral; spectroscopy; stars; study; survey; telescope; ultra; usa; variability; vol
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        item: #251 of 1243
          id: ap-1506
      author: Jelínek, M.; Gorosabel, J.; Castro-Tirado, A. J.; Postigo, A. de Ugarte; Guziy, S.; Cunniffe, R.; Kubánek, P.; Prouza, M.; Vítek, S.; Hudec, R.; Reglero, V.; Sabau-Graziati, L.
       title: BOOTES Observation of GRB 080603B
        date: 2012-01-01
       words: 2597
      flesch: 77
     summary: [3] Eisenstein, D. J., Weinberg, D. H., Agol, E., Ai- hara, H., Allende Prieto, C., Anderson, S. F., Arns, J. A., Aubourg, É., Bailey, S., Bal- binot, E., et al.: SDSS-III: Massive Spectro- scopic Surveys of the Distant Universe, the Milky Way, and Extra-Solar Planetary Systems. 5 Conclusions The 0.6 m telescope BOOTES-2 in La Mayora ob- served the optical afterglow of GRB 080603B in three filters.
    keywords: 080603b; afterglow; b-1b; b-2; band; bootes; break; circular; clear; decay; distribution; gamma; gcn; gcn circular; grb; grb080603b; images; infrared; jun; lightcurve; mjy; observations; optical; pairitel; ray; spain; table; telescope; trigger; vol
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        item: #252 of 1243
          id: ap-1508
      author: Nesci, R.; Maselli, A.; Montagni, F.; Sclavi, S.
       title: S5 1803+78 Revisited
        date: 2012-01-01
       words: 2366
      flesch: 75
     summary: Many BL Lacs are X-ray sources and are a substantial part of the extragalactic sources detected in γ rays. I = 1.1 mag during all our monitoring, a typical value for LBL sources, corresponding to spectral index −1.6.
    keywords: compton; curve; data; days; emission; flares; flux; gst; lacs; lbl; light; mag; monitoring; nesci; observations; observed; optical; ray; scale; source; spectral; synchrotron; time; variations
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        item: #253 of 1243
          id: ap-1510
      author: Szécsi, D.; Bagoly, Z.; Horváth, I.; Balázs, L. G.; Veres, P.; Mészáros, A.
       title: GRB Duration Distribution Considering the Position of the Fermi
        date: 2012-01-01
       words: 1479
      flesch: 68
     summary: Keywords: gamma-ray burst, Fermi, background. We need further investigations to decide this question, but since the shape of the dis- tribution is analogous to the literature (logarithmic distribution with two peaks), we will develop and use this method for further Fermi GRB analyses.
    keywords: background; budapest; burst; data; detector; distribution; fermi; figure; gamma; gbm; lightcurve; method; orientation; position; ray; statistical; time; university
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        item: #254 of 1243
          id: ap-1512
      author: Kapilan, N.
       title: Production of Biodiesel from Vegetable Oil Using Microware Irradiation
        date: 2012-01-01
       words: 2941
      flesch: 59
     summary: The fuel property analysis shows that the properties of jatropha oil biodiesel satisfy the biodiesel standards, and are close to the fossil diesel standards. The production of biodiesel from jatropha oil using a conventional heating method takes more than 1h.
    keywords: 1/2012; acid; acta; alternative; analysis; astm; biodiesel; biodiesel production; bis; calorific; content; conventional; curcas; energy; fossil; fuel; higher; india; irradiation; jatropha; jatropha oil; june; method; microwave; mob; nmr; oil; point; polytechnica; production; properties; reaction; renewable; standard; step; sustainable; time; transesterification; value; vegetable; vol; work
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        item: #255 of 1243
          id: ap-1514
      author: Kutilek, P.; Viteckova, S.
       title: Prediction of Lower Extremity Movement by Cyclograms
        date: 2012-01-01
       words: 5756
      flesch: 59
     summary: For a study of gait we have used new methods based on an analysis of gait angles using cyclograms (also called angle-angle diagrams or cyclokinograms) and artificial intelligence to predict human motion of legs/prostheses. The creation of cyclograms is based on gait angles that are objective, reliable and well suited for statistical study [14].
    keywords: account; acta; analysis; angle; applications; area; artificial; axis; body; control; curve; cycle; cyclogram; data; diagram; dimensional; figure; gait; hip; human; inclination; input; intelligence; issue; joint; knee; learning; lower; markers; methods; model; moment; motion; movement; network; neural; neural network; new; points; polytechnica; practice; predicted; prediction; rehabilitation; second; segments; speed; states; study; subject; symbols; system; table; target; time; training; university; use; values; vol; walking
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        item: #256 of 1243
          id: ap-1516
      author: Sláma, J.
       title: Plasma Flow and Temperature in a Gliding Reactor with Different Electrode Configurations
        date: 2012-01-01
       words: 2017
      flesch: 58
     summary: Keywords: gliding discharge, spectra, shape of electrodes, plasma reactor, plasma flow, temperature. Based on the NIST database [4], we found four spectral lines — λA, λB, λC and λD — typical for low temperature plasma in air.
    keywords: axis; camera; circular; configuration; discharge; distribution; divergent; electrodes; figure; flow; gas; gliding; guide; high; infrared; plasma; probes; reactor; region; shapes; spectra; temperature; visible
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        item: #257 of 1243
          id: ap-1518
      author: Al-Turki, Y. A.; Attia, A.-F.; Soliman, H. F.
       title: Optimization of Fuzzy Logic Controller for Supervisory Power System Stabilizers
        date: 2012-01-02
       words: 4753
      flesch: 61
     summary: However, the output space has 5 dif- ferent fuzzy sets. The idea of a 2nd order fuzzy set was introduced byMelikhov to obtain a boundary ofGaussian shape of themembership function [13].
    keywords: 2/2012; 2nd; acta; adaptive; adaptive fuzzy; algorithm; case; change; chromosome; conditions; constraints; controller; deviation; dynamic; equal; fig; figure; function; fuzzy; fuzzy set; gaflc; gaussian; generator; genetic; input; lines; load; logic; machine; order; output; parameters; polytechnica; power; proposed; pss; results; rotors; rules; set; sets; sflc; simulation; speed; static; study; synchronous; system; table; time; variables; vol
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        item: #258 of 1243
          id: ap-1520
      author: Balázs, L. G.; Mészáros, A.; Horváth, I.; Bagoly, Z.; Veres, P.; Tusnády, G.
       title: Angular Distribution of GRBs
        date: 2012-01-02
       words: 5335
      flesch: 67
     summary: There are several tests for checking the complete randomness of point patterns, but these procedures do not always give information for both properties simultaneously. [14] Cline, D. B., Matthey, C., Otwinowski, S.: Gamma-Ray Bursts: 5th Huntsville Symp., In Kippen, R. M., Mallozzi, R. S., Fishman, G. J. (eds.):
    keywords: 2/2012; acta; angular; apj; area; bagoly; balázs; batse; bursts; case; cell; correlated; different; dimension; distances; distribution; euclidean; factor; grbs; hidden; horváth; intermediate; long; mean; mészáros; minimal; mnras; mst; non; number; p256; paper; pattern; point; polytechnica; randomness; samples; section; short; significance; simulated; simulations; sky; spanning; spectrum; sphere; squared; statistical; t90; tesselation; test; tree; variables; vol; voronoi
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        item: #259 of 1243
          id: ap-1522
      author: Baroch, V.; Duchoň, B.; Faifrová, V.; Říha, Z.
       title: Teaching Management at Technical Universities, Business Reality in the Academic Environment
        date: 2012-01-02
       words: 2808
      flesch: 55
     summary: 52 No. 2/2012 Teaching Management at Technical Universities, Business Reality in the Academic Environment V. Baroch, B. Duchoň, V. Faifrová, Z. Ř́ıha Abstract Students of technical universities often do not understand why their studies should include learning management skills (in addition to the study of economics). It also follows from these surveys that businesses require management skills to be trained at universi- ties (in-service training courses are an additional ex- pense for business companies [3]).
    keywords: 2/2012; acta; board; business; company; concept; ctu; decision; economics; environment; experience; form; game; graduates; graph; knowledge; making; management; polytechnica; practical; praha; real; simulation; skills; soft; source; students; study; survey; teaching; team; teamwork; technical; telecommunications; time; transportation; universities; university; vol
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        item: #260 of 1243
          id: ap-1524
      author: Ficker, T.
       title: An Optimal Procedure for Determining the Height Parameters of Fracture Surfaces
        date: 2012-01-02
       words: 1186
      flesch: 53
     summary: The first problem is that we do not know the optimal number of surface sites to be visited with the confocal mi- croscope in order to obtain reliable profile parameter values. 52 No. 2/2012 An Optimal Procedure for Determining the Height Parameters of Fracture Surfaces T. Ficker Abstract This paper presents an attempt to find an optimal procedure for determining the height parameters of fracture surfaces.
    keywords: acta; cement; confocal; deviation; ficker; fracture; height; measurements; measuring; number; parameters; percentage; polytechnica; profile; roughness; sites; statistical; surface; values
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        item: #261 of 1243
          id: ap-1526
      author: Havlásek, P.; Jirásek, M.
       title: Modeling of Concrete Creep Based on Microprestress-solidification Theory
        date: 2012-01-02
       words: 5958
      flesch: 57
     summary: 5 Conclusions The material model based on MPS theory has been successfully implemented into the OOFEM finite el- ement package, and has been used in simulations of concrete creep at variable temperature andhumidity. Tem- perature effect on concrete creep modeled by microprestress-solidification theory, Journal of Engineering Mechanics, 2004, 130, 6, 691–699.
    keywords: 2/2012; acta; age; aging; assumed; basic; compliance; compressive; concrete; constant; creep; cyclic; data; days; different; drying; duration; evolution; experimental; experimental data; figure; fit; humidity; loaded; loading; mechanical; microprestress; model; mpa; mps; original; parameters; polytechnica; relative; results; sealed; set; solidification; specimens; strain; t=71; temperature; theory; thermal; time; value; −6.27
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        item: #262 of 1243
          id: ap-1528
      author: Michalec, I.; Marônek, M.
       title: Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation
        date: 2012-01-02
       words: 2127
      flesch: 59
     summary: However, the surface layer is a major problem during the welding process, and welding specialists face many problems regarding the weldability of steel sheets. Keywords: steel sheet, nitrooxidation, Cold Metal Transfer, porosity.
    keywords: 2/2012; analysis; cmt; corgon18; ferrite; figure; joints; layer; material; metal; method; microhardness; microscopic; nitrooxidation; parameters; polytechnica; porosity; process; properties; research; results; sheets; steel; surface; table; treatment; values; vol; welding
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        item: #263 of 1243
          id: ap-1530
      author: Povolotskaya, E.; Mach, P.
       title: FMEA and FTA Analyses of the Adhesive Joining Process using Electrically Conductive Adhesives
        date: 2012-01-02
       words: 3780
      flesch: 62
     summary: FMEA is a technique for analyzing the occur- rence of process failures and their effect on the re- sult of a process [7]. There are four basic types of FMEA: process FMEA, system FMEA, de- signFMEAand serviceFMEA.FMEAproduces risk priority numbers (RPNs) as outcomes.
    keywords: 2/2012; acta; adhesive; analysis; approach; assessment; basic; causes; conductive; control; detection; eca; effect; electrical; engineering; events; failure; fault; fig; fmea; fta; improper; inappropriate; industrial; joining; joint; lead; material; methods; mode; nonlinearity; numbers; occurrence; pad; parts; polytechnica; potential; process; quality; reliability; resistance; risk; severity; step; table; technique; tree; types; typical; vol; × ×
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        item: #264 of 1243
          id: ap-1532
      author: Vítek, S.; Fliegel, K.; Páta, P.; Koten, P.
       title: Utilization of Image Intensifiers in Astronomy
        date: 2012-01-02
       words: 1113
      flesch: 55
     summary: 52 No. 2/2012 Utilization of Image Intensifiers in Astronomy S. V́ıtek, K. Fliegel, P. Páta, P. Koten Abstract In this paper we present the properties of image intensifiers, used together with fast TV cameras for astronomical purposes within the MAIA project(Meteor Automatic Imager and Analyser, primarily focused on observing meteoric events with high time resolution). This fact puts greater demands on image calibration.
    keywords: astronomical; automatic; camera; fliegel; gain; image; input; intensifier; koten; lens; light; mtf; noise; paper; resolution; response; spatial; spectral; system
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        item: #265 of 1243
          id: ap-1534
      author: Andert, David; Frydrych, Jan; Gerndtová, Ilona
       title: Use of Grasses and Mixtures of Grasses for Energy Purposes
        date: 2012-01-03
       words: 2240
      flesch: 62
     summary: Particular grass- land mixtures and grass species also react differently in terms of dry matter yield and optimum harvest time for biomass and its utilization for energy pur- poses during the harvest year. The optimum proportion of grass dry matter is from 35 to 50 % in the total d.m.
    keywords: agrostis; biogas; biomass; brome; canary; conditions; content; dry; dry matter; energy; fertilized; fertilized variant; gigantea; grass; grasses; grassland; green; harvest; highest; material; matter; mixtures; production; reed; results; seed; species; variant; yield
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        item: #266 of 1243
          id: ap-1536
      author: Biath, Peter; Ondruška, Juraj
       title: Idealized Compression Ratio for a Screw Briquetting Press
        date: 2012-01-03
       words: 1967
      flesch: 59
     summary: 52 No. 3/2012 Figure 2: Basic parts of the new screw press (1 – drive, 2 – storage node for screw and spindle, 3 – pressing chamber, 4 – feeding system) Figure 3: Pressing chamber (1, 2 – nozzles; 3 – pressing screw, 4 – feeding screw, 5 – collet, A, B, C, D, E – location of compaction) However, in this paper we will pay attention to creating the compression ratio by screw compaction only.
    keywords: briquetting; chamber; compaction; compression; compression ratio; design; feeder; feeding; figure; idealized; machine; material; nozzles; paper; parts; pressing; ratio; screw; section; space; technology; volume
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        item: #267 of 1243
          id: ap-1538
      author: Bukovský, Ivo; Kolovratník, Michal
       title: A Neural Network Model for Predicting NOx at the Mělník 1
        date: 2012-01-03
       words: 3077
      flesch: 55
     summary: For more recent works, including studies of conventional NN in energetic processes, we may refer to papers [5–8], which deal with computational intelligence tools (neural networks, genetic algorithms) focused on biomass combustion. 52 No. 3/2012 Figure 2: NOx prediction by the neural network (1)–(7) with re-configurations and re-training (Figure 1) Figure 3: Detail from Figure 2 — a good prediction Figure 4: Detail from Figure 2 — a bad prediction due to outliers in the training data which is a typical problem with the improper use of neural networks for complicated systems.
    keywords: 3/2012; acta; algorithm; boiler; combustion; control; conventional; data; dynamic; emissions; figure; hidden; ieee; input; layer; learning; measured; minute; model; modeling; network; neural; neural network; non; nox; order; output; polytechnica; prediction; preprocessing; process; qnu; real; recurrent; retraining; time; upca(k; variables; vol
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        item: #268 of 1243
          id: ap-1540
      author: Chríbik, Andrej; Polóni, Marián; Lach, Ján
       title: Effect of Gas Mixture Composition on the Parameters of an Internal Combustion Engine
        date: 2012-01-03
       words: 2270
      flesch: 53
     summary: The introduction is a brief statement of the nature of gas mixture compositions that are useful for the purposes of combustion engines, together with the basic physical and chemical properties relevant to the burning of this gas mixture. Several previously published results have shown a significant effect of blending hydrogen into natural gas with the aim to improve the emission parameters of internal combustion engines.
    keywords: basic; co2; combustion; combustion engine; course; engine; figure; fuel; gas; gases; h2ng0; h2ng15; hydrogen; increases; internal; internal combustion; lean; lgw; mixture; natural; natural gas; nox; operation; oxygen; parameters; proportion; range; syngas; synthesis; vol
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        item: #269 of 1243
          id: ap-1542
      author: Ismail, W. Ali; Braim, R. Rasul; Ketuly, K. Aziz; Awang Bujag, D. Siti Shamsiah; Arifin, Zainudin
       title: Production of Biocellulosic Ethanol from Wheat Straw
        date: 2012-01-03
       words: 4447
      flesch: 53
     summary: Acid hydrolysis is becoming more popular, due to its lower cost and greater ef- fectiveness than enzymatic hydrolysis [7]. Acid hydrolysis can be divided into two groups: (a) concentrated-acid hydrolysis and (b) dilute-acid hydrolysis.
    keywords: acetic; acid; acid hydrolysis; arabinose; baker; cellulose; cerevisiae; concentrated; concentration; culture; detoxification; effects; ethanol; ethyl; fermentation; figure; furfural; glucose; hclo4; heating; hemicellulose; hmf; hydrolysate; hydrolysis; l g; materials; min; perchloric; process; production; saccharomyces; stage; stipitis; straw; sugars; syringaldehyde; temperature; time; vanillin; wheat; wheat straw; xylose; yeast; yield
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        item: #270 of 1243
          id: ap-1544
      author: Janeba, Břetislav; Kolovratník, Michal; Bartoš, Ondřej
       title: Measurement of O2 in the Combustion Chamber of Apulverized Coal Boiler
        date: 2012-01-03
       words: 1921
      flesch: 59
     summary: Another disadvantage of classical types of O2 analyzers is that a flue gas sam- ple cooler needs to be used, which makes the entire measurement system complicated and delays the de- livery of the acquired information. Keywords: O2 measurement, Lambda probe, Pulverized coal boiler.
    keywords: air; analyzer; ash; boiler; chamber; cleaning; coal; combustion; combustion chamber; concentration; extraction; extraction line; figure; flue; gas; information; line; measured; measurement; min; new; operational; periodic; pipe; plant; power; sensor; tests
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        item: #271 of 1243
          id: ap-1546
      author: Jiříček, Ivo; Rudasová, Pavla; Žemlová, Tereza
       title: A Thermogravimetric Study of the Behaviour of Biomass Blends During Combustion
        date: 2012-01-03
       words: 2166
      flesch: 60
     summary: The handbook of biomass combustion and co-firing. The difference in burnout temper- ature between charcoal and other biomass samples was in the range of 51–73 ◦C, see Tabular 2.
    keywords: additive; biomass; blends; burning; burnout; ccf; charcoal; combustion; figure; fuels; heat; ignition; lignin; oxygen; particle; peat; process; rate; release; samples; size; straw; study; tbo; temperature; thermogravimetric; vol
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        item: #272 of 1243
          id: ap-1548
      author: Kolařík, Ladislav; Sahul, Miroslav; Kolaříková, Marie; Sahul, Martin; Turňa, Milan; Felix, Michal
       title: Resistance Spot Welding of dissimilar Steels
        date: 2012-01-03
       words: 1768
      flesch: 62
     summary: Praha, Czech Republic Correspondence to: Ladislav.Kolarik@fs.cvut.cz Abstract This paper presents an analysis of the properties of resistance spot welds between low carbon steel and austenitic CrNi stainless steel. Austenitic stainless steel and low carbon steel possess a good combination of mechanical properties, forma- bility, weldability and resistance to corrosion.
    keywords: analysis; austenitic; carbon; current; deltaspot; dissimilar; edx; figure; haz; joint; low; materials; metal; nugget; properties; resistance; spot; stainless; steel; welding; welds
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        item: #273 of 1243
          id: ap-1550
      author: Kracík, Petr; Pospíšil, Jiří; Šnajdárek, Ladislav
       title: Heat Exchangers for Condensation and Evaporation Applications Operating in a Low Pressure Atmosphere
        date: 2012-01-03
       words: 2076
      flesch: 64
     summary: [W] (5) • derivation equations of heat transfer through a circular wall The heat passage of the wall is composed of conduction, convection and also radiation. The calculation is based on Newton’s principle of heat transfer and the Fourier heat conduction principle, provided there is a parallel arrangement of pipes.
    keywords: 3/2012; acta; apparatus; bundle; chamber; coefficient; data; exchanger; figure; flow; heat; heat transfer; kpa; liquid; loops; measured; number; outside; polytechnica; power; pressure; temperature; thermocouples; transfer; tube; vacuum; vol; δtln
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        item: #274 of 1243
          id: ap-1552
      author: Krátký, Lukáš; Jirout, Tomáš; Nalezenec, Jiří
       title: Lab-scale Technology for Biogas Production from Lignocellulose Wastes
        date: 2012-01-03
       words: 2751
      flesch: 55
     summary: 52 No. 3/2012 A – scheme of the unit B – lab unit 1 – bottle with substrate, 2 – burette, 3 – balancing bottle Figure 6: Lab testing unit for investigating biogas yield In general, substrate pretreated with LHW is more digestible, the amount of biogas is increased, the residence time in the fermenter decreases, and pumping and homogenization are facilitated [5]. The effectiveness of a macerator is evaluated by the energy demand for comminution, the structure, and biogas tests of the treated material.
    keywords: anaerobic; ball; batch; biogas; biomass; comminution; energy; expansion; fermenter; figure; glucose; hot; lab; lhw; lignocellulose; liquid; macerator; methane; organic; potential; pressure; pretreatment; processing; scale; size; structure; substrate; technology; temperature; testing; tests; time; unit; vessel; vol; wastes; water; yield
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        item: #275 of 1243
          id: ap-1554
      author: Križan, Peter; Matúš, Miloš; Kers, Jaan; Vukelić, Djordje
       title: Change of Pressing Chamber Conicalness at Briquetting Process in Briquetting Machine Pressing Chamber
        date: 2012-01-03
       words: 2911
      flesch: 54
     summary: This type of pressing chamber is often used in the structure of briquetting machines. 52 No. 3/2012 Figure 6: Pressing force distribution across the pressing chamber Figure 6, left).
    keywords: axial; briquette; briquetting; chamber; compacting; conditions; conical; conical chamber; conicalness; density; experiment; figure; final; force; friction; impact; length; material; mathematical; model; parameters; pressed; pressing; pressure; process; quality; shape; temperature; wall
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        item: #276 of 1243
          id: ap-1556
      author: Lisý, Martin; Baláš, Marek; Moskalík, Jiří; Štelcl, Otakar
       title: Biomass Gasification — Primary Methods for Eliminating Tar
        date: 2012-01-03
       words: 3100
      flesch: 57
     summary: However, it seems that the addition of dolomite in the fluidized bed may be an effective primary measure for cutting down the tar content in fuel gas. The chart shows that a moderate drop in tar content in the gas was achieved, but that this drop was insignificant.
    keywords: 3/2012; acta; air; amounts; bed; biomass; calcination; catalyst; co2; composition; content; course; dolomite; drop; energy; engineering; experiments; feedstock; fluidized; fluidized bed; fuel; gas; gasification; gasifiers; grain; impact; interval; measures; methods; particles; polytechnica; primary; process; reactor; reduction; size; tar; temperature; use; vol; ways
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        item: #277 of 1243
          id: ap-1558
      author: Matúš, Miloš; Križan, Peter
       title: Modularity of Pressing Tools for Screw Press Producing Solid Biofuels
        date: 2012-01-03
       words: 2534
      flesch: 54
     summary: 52 No. 3/2012 Figure 1: Newly-patented design of a screw press Figure 2: Pressing chamber with tools (1 – feeding screw, 2 – pressing screw, 3 – pressing chamber, 4 – nozzles) and the continuous solid spindle with pressing screws on the ends (compressive stress). Pressing screws are designed as monolithic (Figure 3), as well as folded (Figure 8, Figure 9), which can have a rotating tip to reduce friction.
    keywords: axial; biomass; chamber; compaction; design; diameter; different; figure; geometry; high; increase; machine; material; modularity; nozzle; parameters; pressing; pressure; process; quality; raw; requirements; screw; screw press; shape; thread; tip; tools; variant; vol
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        item: #278 of 1243
          id: ap-1560
      author: Moskalík, Jiří; Škvařil, Jan; Štelcl, Otakar; Baláš, Marek; Lisý, Martin
       title: Energy Recovery from Contaminated Biomass
        date: 2012-01-03
       words: 2640
      flesch: 60
     summary: References [1] Baláš, M., Lisý, M.: Water-steam influence on biomass gasification process, Acta Metallurgica Slovaca, 11, 1, 2005, 14–21, (in Czech). The experiments show that the optimum temper- ature for chipboard gasification is somewhere around 800 ◦C. In gasification at temperatures in excess of 820 ◦C, fuel caking occurs in the fluidized bed, and it also solidifies above the grate.
    keywords: 3/2012; acta; analysis; ash; bed; biomass; chipboard; combustion; composition; compounds; contaminated; content; crushed; energy; experimental; fluidized; fuel; furniture; gasification; gasifier; heat; material; polytechnica; primary; process; production; sample; substances; table; tar; temperature; values; vol; wastes; wood
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        item: #279 of 1243
          id: ap-1562
      author: Pavlatová, Monika; Horáková, Marta; Hladík, Jan; Špatenka, Petr
       title: Plasma Surface Treatment of Powder Materials — Process and Application
        date: 2012-01-03
       words: 2800
      flesch: 53
     summary: 7 Conclusion This paper has presented a plasma treatment method for powder materials. [2,3] The bonding of new functional groups on the molecular chain during plasma surface treatment of polymer materials is one way in which this type of treatment can be used.
    keywords: 3/2012; abrasion; acta; adhesion; applications; cycles; czech; energy; figure; foam; higher; industrial; layer; material; modification; modified; paint; particles; plant; plasma; polyolefin; polytechnica; powder; process; production; properties; republic; sample; scale; sintered; surface; test; treatment; varnish; vol; water; wettability
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        item: #280 of 1243
          id: ap-1564
      author: Plaček, Viktor; Oswald, Cyril; Hrdlička, Jan
       title: Optimal Combustion Conditions for a Small-scale Biomass Boiler
        date: 2012-01-03
       words: 1869
      flesch: 52
     summary: However, a smaller combustion chamber leads to issues with combustion process control. Both the economic aspects and the ecological as- pects of optimal combustion can be affected by con- trolling the current excess air ratio.
    keywords: air; algorithm; approach; biomass; boiler; combustion; conditions; control; current; czech; emissions; excess; experimental; figure; fuel; grate; lambda; need; operation; optimal; prague; probe; process; ratio; scale; small; sweeping
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        item: #281 of 1243
          id: ap-1566
      author: Pilař, Lukáš; Hrdlička, Jan
       title: Research and development of CO2 Capture and Storage Technologies in Fossil Fuel Power Plants
        date: 2012-01-03
       words: 2449
      flesch: 56
     summary: – decreased efficiency — for this case, the post- combustion CO2 capture technology decreases the power plant’s efficiency by approximately 11 percentage points. The ammonia process consists of the following main components: – flue gas cooling and the flue gas fan – CO2 absorption – final cleaning of the scrubbed flue gas – CO2 desorption – CO2 final cleaning – CO2 compression – auxiliary cooling source – ammonia treatment A more detailed description is provided in the fol- lowing paragraphs: – flue gas cooling — the absorption process for the ammonia method takes place at low tem- peratures (5–10 ◦C), so the flue gas must be cooled down as much as possible before entering the process.
    keywords: absorption; amine; ammonia; capture; co2; coal; combustion; compressor; consumption; cooling; current; czech; efficiency; energy; flue; flue gas; gas; heat; method; mwe; parameters; plant; power; process; republic; solvent; steam; table; technology; temperature; vol; water
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        item: #282 of 1243
          id: ap-1568
      author: Štefanica, Jiří; Hrdlička, Jan
       title: Experimental Investigation of Radial Gas Dispersion Coefficients in a Fluidized Bed
        date: 2012-01-03
       words: 1933
      flesch: 61
     summary: Tracer gas was injected by pipe 3 in the middle of the perforated plate dis- tributor 5 (open area of 2.51 %) that was supporting the fluidized bed. %] concentration of tracer gas at a given point c∞ [vol.
    keywords: air; balls; bed; ceramic; coefficient; combustion; concentration; dgr; dispersion; experiment; figure; flow; fluidization; fluidized; gas; height; material; method; mixing; model; radial; rep; state; tracer; umf; velocity; vol
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        item: #283 of 1243
          id: ap-1570
      author: Turňa, Milan; Ondruška, Jozef; Turňová, Zuzana
       title: Explosion Cladding of Lead on Steel
        date: 2012-01-03
       words: 1921
      flesch: 68
     summary: Owing to its low melting point, lead is used with working temperatures only from 150 to 170 ◦C. Only technically pure lead is used in the chemical in- dustry as pure lead has the highest resistance against corrosion. 52 No. 3/2012 Explosion Cladding of Lead on Steel Milan Turňa1, Jozef Ondruška1, Zuzana Turňová1 1 Slovak University of Technology, Faculty of Materials Science and Technology, J. Bottu 25, 917 24 Trnava, Slovakia Correspondence to: milan.turna@stuba.sk Abstract This work deals with explosion cladding of lead on steel.
    keywords: 3/2012; acta; bimetals; boundary; chemical; cladding; explosion; figure; lead; materials; max; mechanical; mpa; peel; polytechnica; properties; quality; shear; specimens; steel; strength; table; technology; test; type; vol; welding
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        item: #284 of 1243
          id: ap-1572
      author: Baláš, Marek; Lisý, Martin; Štelcl, Ota
       title: The Effect of Temperature on the Gasification Process
        date: 2012-01-04
       words: 2064
      flesch: 50
     summary: Reactor parameters: • Capacity (in produced gas) 100 kWt • Fuel demand (consumption, requirement) 150 kWt • Wood consumption 40 kg · h−1 • Air flow rate 50 m3n · h−1 The basic fluid generator operation characteris- tics are described below: • Operation of the fluid generator – after ig- nition, the fluid generator is operated in combus- tion mode, so that its heating is quickit heats up quickly. This paper describes experiments that investigate the effect of temperature and pressure on gas composition and low calorific value.
    keywords: air; bed; biomass; calorific; chart; combustion; composition; content; dependency; effect; energy; figure; fluid; fuel; gas; gasification; generator; increase; lower; pressure; production; proportion; results; technology; temperature; value; vol
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        item: #285 of 1243
          id: ap-1574
      author: Balcau, Monica; Plesa, Angela; Opruta, Dan
       title: Contributions to the Study of Dynamic Absorbers, a Case Study
        date: 2012-01-04
       words: 1992
      flesch: 62
     summary: Figure 1: Mechanical system This case starts from the differential equation sys- tem governing the torsional vibrations created by the mechanical system presented in Figure 2: m1 d2a1 dt2 + c12(a1 − a2) = 0 m2 d2a2 dt2 + c12(a2 − a1) + c23(a2 − a3) = 0 Figure 2: Equivalent mechanical system The relative linear elongations (displacement) ai measured on the reduced circle of radius r (of the vibrations of the four reduced masses) are expressed in relation to the linear amplitudes Ai:
    keywords: absorber; c12; dt2; dynamic; figure; l l; mass; masses; mechanical; order; reduced; system; vibrations; x2ω20
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        item: #286 of 1243
          id: ap-1576
      author: Banyai, Daniel; Marcu, Lucian
       title: A Flexible Adjustment and Control System for Hydraulic Machines
        date: 2012-01-04
       words: 2408
      flesch: 50
     summary: Keywords: adjustable pump, control system, dynamic behavior. the electricity supply and control system for the proportional distributor, the sensors and the distributor to simulate the load; 5
    keywords: adjustable; adjustment; behavior; chamber; command; control; control system; controller; displacement; dynamic; electro; equations; figure; flow; hydraulic; linear; machines; model; motor; piston; power; pressure; proportional; pump; romania; signal; system; valve; variable; vol
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        item: #287 of 1243
          id: ap-1578
      author: Brázdil, Marian; Pospíšil, Jiří
       title: A Way to Use Waste Heat to Generate Thermoelectric Power
        date: 2012-01-04
       words: 1765
      flesch: 48
     summary: Only materials which possess ZT > 0.5 are re- garded as thermoelectric materials [3]. Keywords: thermoelectricity, thermoelectric generator, seebeck effect, waste heat.
    keywords: 4/2012; acta; biomass; boiler; combustion; conversion; effect; efficiency; electricity; energy; figure; fuel; gas; generator; heat; high; low; materials; merit; polytechnica; potential; power; prototype; seebeck; source; systems; temperature; thermal; thermoelectric; voltage; waste
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        item: #288 of 1243
          id: ap-1580
      author: Stunová, Barbora Bryksí
       title: Strontium As a Structure Modifier for Non-binary Al–Si Alloy
        date: 2012-01-04
       words: 3525
      flesch: 56
     summary: [2,5] that the mor- phology of iron intermetallic phases can be influenced by adding strontium. Oc- casionally there are skeletal particles of magnesium phase Mg2Si, always tied to the eutectic silicon or iron phase.
    keywords: addition; agent; alloy; alsr10; aluminum; binary; cast; cavities; changes; coarse; defects; effect; eutectic; figure; formations; gas; influence; intermetallic; iron; magnesium; manganese; mg2si; modification; modified; morphology; non; nucleation; phases; porosity; pure; samples; shrinkage; silicon; skeletal; strontium; structure; vol
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        item: #289 of 1243
          id: ap-1582
      author: Čermáková, Jiřina; Mrázek, Jakub; Fliegerová, Kateřina; Tenkrát, Daniel
       title: Replacing Natural Gas by Biogas — Determining the Bacterial Contamination of Biogas by PCR
        date: 2012-01-04
       words: 3143
      flesch: 51
     summary: Most of the biogas that is produced comes from treated sewage sludge and biogas plants, and these systems do not contain a pasteurization step. Proteobacteria; Alphaproteobacteria Decompose polysaccharide, can cause infection SB Lactobacillus fermentum 98 Firmicutes; Lactobacillales Produce lactic acid, can cause infection SB Uncultured Lachnospiraceae bacterium 98 Firmicutes; Clostridia – SB, SW Uncultured Bacteroidetes clone 100 Bacteroidetes Produce propionic, lactic and acetic acid, can cause infection B1W, NG Uncultured clostridium clone 36 Firmicutes, Clostridia – B2W Leucobacter 100 Actinobacteria; Actinobacteridae – SB Uncultured Bacteroidetes bacterium 95 Bacteroidetes Produce propionic, lactic and acetic acid, can cause infection NG Uncultured clostridiales bacterium 100 Firmicutes, Clostridia – B1W, B2W, BB, SW, SB, NG E. coli 100 Proteobacteria; Gammaproteobacteria From intestinal micro-flora, can cause toxins NG Staphylococcus sp. 100 Firmicutes; Bacili Very adaptable pathogen B1W, B2W, NG Pseudomonas fluorescens 99 Proteobacteria; Gammaproteobacteria Reduce nitrate, opportunistic pathogen SW Candidatus Nitrospiradefluvii 99 Nitrospirae; Nitrospira Reduce nitrate SA Column S for percentage similarity of closest sequence in GenBank B1W biogas behind the digester from waste water treatment B2W biogas behind the adsorption unit from waste water treatment BB biogas from biogas plant SW sludge from waste water treatment SB substrate from biogas plant NG natural gas 35 Acta Polytechnica Vol.
    keywords: 4/2012; acta; adsorption; anaerobic; b1w; b2w; bacterial; bacteria·m−3; biogas; biomethane; corrosion; czech; digester; digestion; distribution; energy; firmicutes; grid; heat; methods; microbial; microorganisms; molecular; natural; natural gas; number; pcr; plant; polytechnica; present; process; republic; samples; sludge; species; substrate; table; total; treatment; uncultured; unit; use; vol; waste; water
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        item: #290 of 1243
          id: ap-1584
      author: Čermáková, Jiřina; Doucek, Aleš; Polák, Lukáš
       title: Energy Accumulation by Hydrogen Technologies
        date: 2012-01-04
       words: 1879
      flesch: 55
     summary: This discordance between energy production and energy utilization can be dealt with by hydrogen accumulation. • Longer-term lack of energy production due to unfavourable weather conditions; basically this period is not longer than 7–10 days.
    keywords: cell; consumption; electricity; electrolyzer; energy; figure; fuel; household; hybrid; hydrogen; immediate; model; panels; photovoltaic; plants; power; pressure; production; results; simulation; storage; system; tank
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        item: #291 of 1243
          id: ap-1586
      author: Demianová, Kristína; Ožvold, Milan; Turňa, Milan
       title: Application of Induction Heating for Brazing Parts of Solar Collectors
        date: 2012-01-04
       words: 1881
      flesch: 63
     summary: 52 No. 4/2012 a) 2.26 kW, 35 s, FL10 b) 2.9 kW, 18 s, FL10 c) 2.6 kW, 25 s, FL10 d) 2.6 kW, 25 s, FL10 Figure 3: Brazed joints fabricated with various parameters a) 2.6 kW, 26 s, Nocolok b) 2.6 kW, 28 s, FL20 c) 2.69 kW, 24 s, FL20 Figure 4: Brazed joints fabricated with various parameters 2.6 kW, 26 s, FL20 Figure 5: Macrostructure of the brazed joint of specimen P6 with a detail of the microstructure cal melting of the flange at brazing time 18 s. A se- ries of brazed joints were fabricated with three types of fluxes (Nocolok, BrazeTec F32/80 and BrazeTec F30/70) and the AlSi12brazing alloy type.
    keywords: alloy; brazetec; brazing; coil; collectors; figure; flange; flux; heating; induction; joint; materials; melting; nocolok; parameters; parts; polytechnica; power; solar; suitable; surface; technology; time; type; vol
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        item: #292 of 1243
          id: ap-1588
      author: Dlouhý, Tomáš; Dupal, Tomáš; Dlouhý, Jan
       title: A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology
        date: 2012-01-04
       words: 3231
      flesch: 59
     summary: • Enter the connection order of – Water and steam – Flue gas – Air • Define the heat transfer from flue gas to wa- ter/steam/air. According to generally presented recommendations, backed up by our own calculations, a 70 % flue gas recycling ra- tio is considered (i.e. approximately twice the amount of flue gas that forms).
    keywords: 4/2012; acta; air; boiler; co2; coal; combustion; conditions; design; economizer; figure; flow; flue; flue gas; gas; heating; lower; model; modifications; new; order; outlet; output; oxyfuel; oxygen; oxygen combustion; plant; polytechnica; rate; recycling; reference; reheater; size; span; steam; superheater; surface; technology; temperature; vol; water
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        item: #293 of 1243
          id: ap-1590
      author: Goliaš, Marcel; Palenčár, Rudolf
       title: Determination of Uncertainties for Correlated Input Quantities by the Monte Carlo Method
        date: 2012-01-04
       words: 1572
      flesch: 52
     summary: Figure 2 shows the probability density functions and the frequency distributions (histograms) of the rectangle obtained by the distribution propagation by Monte Carlo simulation for the three correlation coef- ficients. Keywords: uncertainty of measurement, Monte Carlo method, correlation.
    keywords: carlo; correlation; density; distribution; input; measurement; method; model; monte; output; probability; propagation; quantities; quantity; simulation; uncertainties; uncertainty
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        item: #294 of 1243
          id: ap-1592
      author: Grepl, Martin; Pagáč, Marek; Petrů, Jana
       title: Laser Cutting of Materials of Various Thicknesses
        date: 2012-01-04
       words: 2312
      flesch: 65
     summary: 52 No. 4/2012 Table 5: Laser cutting velocities with 80 % power Number of cut Velocities of laser cutting [mm · min−1] Cut 8a 500 Cut 8b 600 Cut 8c 400 Cut 8d 300 Cut 8e 450 Figure 6: The cuts of variable cutting velocity with constant power 80 % Cuts nos. Figure 1: Principle of laser cutting 62 Acta Polytechnica Vol.
    keywords: 4/2012; acta; alloy; cut; cuts; cutting; delta; figure; gas; laser; material; metal; min−1; nos; output; parameters; polytechnica; power; process; quality; recast; source; speed; suitable; system; thickness; view; vol
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        item: #295 of 1243
          id: ap-1594
      author: Janásek, Adam; Čep, Robert; Brychta, Josef
       title: Checking the Geometric Accuracy of a Machine Tool for Selected Geometric Parameters
        date: 2012-01-04
       words: 2716
      flesch: 73
     summary: References [1] ISO 10791-2 – Test conditions for machine cen- tres — Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis). [5] ISO 10791-1 – Test conditions for machine cen- tres — Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (hor- izontal Z-axis).
    keywords: axis; distance; figure; geometric; machine; measured; measurement; milling; scheme; spindle; standard; table; terms; test; value
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        item: #296 of 1243
          id: ap-1596
      author: Janovec, Jiří; Poláchová, Daniela; Junek, Michal
       title: Lifetime Assessment of a Steam Pipeline
        date: 2012-01-04
       words: 2269
      flesch: 60
     summary: Another topic for research is the design of checks on the service life of steam pipelines in the area of creep damage and damage assessment of the mi- crostructures of grade 15 steels and the new class of T23, T24, P91, P92 and E911 steels. 78 Acta Polytechnica Vol. Keywords: life assessment of a steam pipeline, creep damage, assessment of microstructure damage.
    keywords: 4/2012; acta; assessment; cavitation; cavities; class; creep; czech; damage; figure; hours; hrs; joints; life; lifetime; material; method; microstructure; min; mpa; necessary; operating; parameters; pipeline; piping; plants; polytechnica; power; service; stage; states; steam; steel; table; tests; type; vol
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        item: #297 of 1243
          id: ap-1598
      author: Jusko, Ondrej
       title: New Abrasive Materials and Their Influence on the Surface Quality of Bearing Steel After Grinding
        date: 2012-01-04
       words: 1390
      flesch: 63
     summary: This situation provided the moti- vation to seek a new direction in the development of grinding wheels, and to investigate a type of grind- ing wheel with an innovative abrasive material. A 99A 60J 9V grinding wheel was used.
    keywords: abral; abrasive; al2o3; bearing; cbn; conventional; cycle; figure; grains; grinding; high; influence; material; min; new; results; roughness; roundness; steel; surface; wheel
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        item: #298 of 1243
          id: ap-1600
      author: Kolařík, Ladislav; Kolaříková, Marie; Kovanda, Karel; Pantůček, Marek; Vondrouš, Petr
       title: Advanced Functions of a Modern Power Source for GMAW Welding of Steel
        date: 2012-01-04
       words: 2594
      flesch: 68
     summary: Developments in modern microelectronics have led to rapid advances in welding sources. Research and development carried out by manufacturers of welding sources focuses on rapid optimal control of the welding parameters dur- ing welding.
    keywords: arc; control; current; evolution; faces; figure; function; gmaw; heat; iac; input; layer; lower; metal; migatronic; parameters; position; process; repeat; root; sample; sequence; short; source; spatter; standard; table; time; transfer; vertical; voltage; welding
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        item: #299 of 1243
          id: ap-1602
      author: Kupec, Tomáš; Hlavačová, Ivana; Turňa, Milan
       title: Metallurgical Joining of Magnesium Alloys by the FSW Process
        date: 2012-01-04
       words: 1393
      flesch: 58
     summary: 1 % Nital Figure 5: Microstructure of weld metal, etch. The measured microhardness values in the base metal, HAZ and weld metal did not differ consider- ably.
    keywords: 4/2012; acta; alloy; base; boundary; equipment; figure; friction; fsw; institute; magnesium; materials; metal; microhardness; parameters; phase; pin; polytechnica; process; stir; technology; tool; vol; welding
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        item: #300 of 1243
          id: ap-1604
      author: Laska, Mateusz; Kazior, Jan
       title: Influence of Various Process Parameters on the Density of Sintered Aluminium Alloys
        date: 2012-01-04
       words: 1358
      flesch: 53
     summary: The results showed that the green density increases with compaction pressure, but that sintered density is independent of green density (compaction pressure) for each sintering temperature. Figure 2 presents the relationship between sintered density and com- paction pressure for different sintering temperatures.
    keywords: alloys; aluminium; compaction; compacts; densification; density; different; ea231; ea321; factor; figure; function; green; powders; pressure; samples; silicon; sintered; sintering; specimens; theoretical
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        item: #301 of 1243
          id: ap-1606
      author: Marcu, Ioan-Lucian; Banyai, Daniel-Vasile
       title: Fundamental Research on Hydraulic Systems Driven by Alternating Flow
        date: 2012-01-04
       words: 2089
      flesch: 46
     summary: 52 No. 4/2012 Fundamental Research on Hydraulic Systems Driven by Alternating Flow Ioan-Lucian Marcu1, Daniel-Vasile Banyai1 1 Technical University of Cluj-Napoca, Department of Mechanical Engineering, B-dul Muncii Nr. 103-105 Cluj-Napoca Romania Correspondence to: Lucian.Marcu@termo.utcluj.ro Abstract This paper presents a new approach to rotary hydraulic systems, and the functional principles of rotary hydraulic systems that can work using alternating flows. Hydraulic transmissions using alternating flows are based on bidirectional displacement of a predefined volume of fluid through the connection pipes between the alternating flow, the pressure energy generator and the motor.
    keywords: alternating; connection; drop; experimental; figure; flow; fluid; functioning; generator; hydraulic; hydraulic motor; instantaneous; max; motor; output; parameters; phase; pistons; pressure; principles; rotary; star; stroke; system; volume; way; working
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        item: #302 of 1243
          id: ap-1608
      author: Petera, Pavel
       title: Holding Pressure and Its Influence on Quality in PIM Technology
        date: 2012-01-04
       words: 1566
      flesch: 56
     summary: It can be seen from these graphic relations, which show the density across the sample, that where there was higher holding pressure the distribution of the density values was more homogeneous. Keywords: PIM, holding pressure, phase separation.
    keywords: binder; ceramic; density; different; distribution; higher; influence; injection; material; molding; necessary; pim; places; polymeric; powder; pressure; processing; quality; specimens; technology; values
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        item: #303 of 1243
          id: ap-1610
      author: Purgar, Amon; Winter, Franz
       title: Concepts of Emission Reduction in Fluidized Bed Combustion of Biomass
        date: 2012-01-04
       words: 2305
      flesch: 57
     summary: This status report focuses on the current operation of fluidized bed combustors. Various emission reduction concepts for fluidized bed combustors that are typical for their industrial sector are discussed.
    keywords: air; bed; biomass; capacity; catalytic; cleaning; combustion; combustors; communal; conversion; energy; figure; flue; fluidization; fluidized; fuel; gas; industry; material; paper; plants; pulp; reduction; sewage; sludge; system; thermal; treatment; waste
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        item: #304 of 1243
          id: ap-1612
      author: Skaloń, Mateusz; Kazior, Jan
       title: Influence of the Amount of Master Alloy on the Properties of Austenitic Stainless Steel AISI 316L Powder Sintered in Hydrogen
        date: 2012-01-04
       words: 1971
      flesch: 61
     summary: 3.3 Microhardness Figure 3 presents the results of microhardness mea- surements of sintered AISI 316L powders. The major in- crease in sintered density for 0.3 % wt. amount of boron suggests some changes in the sintering mech- anisms than when smaller lower amounts of boron were added.
    keywords: 316l; addition; aisi; austenitic; boron; density; figure; grain; hardness; influence; layer; liquid; material; metallurgy; microhardness; microstructure; porosity; powder; sintered; sintering; stainless; steel; surface; vol
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        item: #305 of 1243
          id: ap-1614
      author: Vavruška, Petr
       title: Creating a Multi-axis Machining Postprocessor
        date: 2012-01-04
       words: 2473
      flesch: 61
     summary: It is usually possible to specify the limits of machine tool axes and then during transformation the postprocessor checks the positions of the axes in the whole machine tool. Multi-axis machine tools are distinguished by their nomenclature (location of the rotary axes), and hence transformation equations can be created.
    keywords: axes; axis; cam; case; control; data; figure; file; functions; language; machine; machining; method; multi; necessary; positions; postprocessor; prague; production; program; rotary; system; tool; transformation
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        item: #306 of 1243
          id: ap-1616
      author: Zahradník, Radek
       title: The Simulation of the Influence of Water Remnants on a Hot Rolled Plate after Cooling
        date: 2012-01-04
       words: 1034
      flesch: 60
     summary: Keywords: water remnants, FEA, simulation, hot plate. This paper focuses on a numerical calculation (finite ele- ment analysis) of rolled plate deformations, and the goal is to find whether the water remnants have a significant influence on the shape of the rolled plate.
    keywords: analysis; cooling; displacement; element; field; figure; finite; heat; hot; model; plate; remnants; temperature; transfer; water
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        item: #307 of 1243
          id: ap-1618
      author: Murray-Smith, David J.
       title: An Application of the Individual Channel Analysis and Design Approach to Control of a Two-input Two-output Coupled-tanks System
        date: 2012-01-04
       words: 8757
      flesch: 57
     summary: The avail- ability of a comprehensive nonlinear model of the system, together with linearised representations ap- propriate for control system design, also makes this system suitable for the teaching of practical aspects of multi-input multi-output control system analysis and design using ICAD or other approaches. This could also illustrate the benefits of bringing together simulation and experimental testing within the processes of control system design and implemen- tation.
    keywords: 4/2012; acta; analysis; application; approach; area; axis; case; changes; channel; closed; continuous; control; control system; controller; cross; demanded; design; diagram; drain; equations; experimental; feedback; figure; flow; frequency; function; gain; horizontal; icad; individual; input; level; line; liquid; loop; magnitude; methodology; methods; model; multivariable; nonlinear; operating; output; paper; performance; phase; plant; point; polytechnica; process; reference; results; robustness; shows; similar; simulation; simulation results; single; small; step; structure; system; tank; terms; test; time; transfer; use; values; vol
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        item: #308 of 1243
          id: ap-1620
      author: Bauer, Jan
       title: Simulation of a Matrix Converter Fed Drive With Sliding Mode Control
        date: 2012-01-05
       words: 4331
      flesch: 63
     summary: Let us to investigate the existence condition for sliding mode torque control. There will always be one vector Figure 7: Principle of sliding mode torque control.
    keywords: 5/2012; acta; algorithm; amplitude; analysis; approach; available; circuit; control; controller; converter; current; drive; equivalent; fig; figure; flux; frequency; induction; input; inverter; link; machine; matrix; mode; modulation; motor; order; output; paper; phase; polytechnica; power; sliding; space; state; switches; switching; system; target; time; torque; torque control; value; variables; vector; virtual; voltage; voltage vector
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        item: #309 of 1243
          id: ap-1622
      author: Beniak, Juraj; Ondruška, Juraj; Čačko, Viliam
       title: Design Process of Energy Effective Shredding Machines for Biomass Treatment
        date: 2012-01-05
       words: 2133
      flesch: 61
     summary: However, it is also necessary to design an experiment for other types of materials and for other subsidiary parameters that can affect the process of material disintegration, and thus increase the energy consumed in these processes (by these devices). [6] shows the impact of moisture on the shear strength of pine and spruce wood material.
    keywords: angle; design; device; disintegrative; energy; experiment; face; figure; force; impact; input; machinery; machines; material; moisture; moment; necessary; parameters; plan; power; process; selected; shredding; tool; torque; values; vol; wedge; wood
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        item: #310 of 1243
          id: ap-1624
      author: Brabec, Jiří; Helmich, Martin
       title: Development of an Ultralight with a Ducted Fan
        date: 2012-01-05
       words: 3207
      flesch: 58
     summary: Keywords: available thrust, required thrust, propulsion, ducted fan. These character- istics are represented by values called available thrust, i.e. the thrust that the plane can use for a specific flight speed, and the required thrust for the plane drag.
    keywords: aerodynamic; aircraft; airplane; available; bed; category; characteristics; design; development; device; drag; engine; fan; figure; fuselage; maximum; measured; necessary; outlet; plane; power; power unit; problems; propeller; propulsion; propulsion unit; required; speed; system; tests; theoretical; thrust; tunnel; ultralight; unit; values; weight; work
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        item: #311 of 1243
          id: ap-1628
      author: Černek, Petr; Brejcha, Michal; Hájek, Jan; Pígl, Jan
       title: A Comparison of Power Quality Controllers
        date: 2012-01-05
       words: 2047
      flesch: 65
     summary: FACTS: modelling and sim- ulation in power networks. In recent decades, power quality has become topic number one.
    keywords: active; ahf; analysis; buildings; controllers; distribution; disturbances; equipment; factor; figure; filter; harmonic; important; load; network; paper; phase; power; quality; reactive; shunt; solution; stability; suitable; supply; system; voltage
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        item: #312 of 1243
          id: ap-1630
      author: Černý, Viktor
       title: Energy Estimation of Distributed Phase-shift Beamforming
        date: 2012-01-05
       words: 6194
      flesch: 69
     summary: In order to prevent this situation, we can install batteries with higher capacities at the relays, or we can increase the num- ber of relay modules. M modules per cluster.
    keywords: 5/2012; acknowledgement; acta; antenna; axis; beamforming; broadcasts; case; cd2(1; classic; cluster; communication; constant; data; device; distance; emod; end; energy; etot; fig; figure; frequency; method; modules; multiple; network; number; order; packets; paper; phase; polytechnica; power; receiver; relay; repeater; results; shift; signal; single; size; step; t)d2; time; total; transmission; vol
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        item: #313 of 1243
          id: ap-1634
      author: Grünwald, Ondrej
       title: Model of Customer Buying Behavior in the CZ Mobile Telecommunication Market
        date: 2012-01-05
       words: 6800
      flesch: 64
     summary: Price level was clearly the most common considera- tion that was chosen as the must-avoid level. 52 No. 5/2012 C o u n t o f ta ri ff s 268 251 239 228 216 201 181 166 150 135 121 112 100 84 65 58 51 40 35 29 22 16 11 6 1 Price [CZK] 3 2 5 0 3 0 2 0 2 9 1 0 2 8 1 0 2 7 1 0 2 6 1 0 2 5 1 0 2 4 1 0 2 3 1 0 2 2 1 0 2 1 1 0 2 0 1 0 1 9 1 0 1 8 1 0 1 7 1 0 1 6 1 0 1 5 1 0 1 4 1 0 1 3 1 0 1 2 1 0 1 1 1 0 1 0 1 0 9 1 0 8 1 0 7 1 0 6 1 0 5 1 0 4 1 0 3 1 0 2 1 0 1 1 0 Page 1 Figure 8: Distribution of tariff prices in screening sections.
    keywords: acbc; analysis; attribute; byo; choice; concepts; conjoint; customer; czk; data; e c; e n; e t; estimation; figure; individual; levels; lump; m b; m s; market; minutes; mobile; model; míru; n s; n t; n u; new; number; operator; price; product; r e; respondent; s u; sawtooth; screening; section; services; set; share; sms; step; student; sum; table; tariff; te s; u m; u t; u te
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        item: #314 of 1243
          id: ap-1636
      author: Halupka, Ivan; Kollár, Ján; Pietriková, Emília
       title: A Task-driven Grammar Refactoring Algorithm
        date: 2012-01-05
       words: 4877
      flesch: 47
     summary: This paper also briefly introduces the reader to processes occurring in grammar refactoring, a method for describing desired properties that a refactored grammar should fulfill, and there is a discussion of the overall significance of grammar refactoring. The problem is that grammar refactoring is in many cases a non-trivial task, and if done manually it is prone to errors, especially in the case of larger grammars.
    keywords: algorithm; approach; automated; basis; chain; command; commandsequence; context; corresponding; creation; development; entity; equivalent; evolution; expression; free; function; generation; grammar; grammar population; grammar refactoring; ident; initial; instance; language; left; martinica; number; objective; objective function; order; parameters; phase; population; procedure; process; processes; random; refactoring; refactoring process; sequence; size; specific; step; task; test; value; work
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        item: #315 of 1243
          id: ap-1638
      author: Henychová, Petra; Hiřmanová, Klára; Vraný, Martin
       title: Diamond Films for Implantable Electrodes
        date: 2012-01-05
       words: 2432
      flesch: 61
     summary: [3] P. W. May, W. J. Ludlow, M. Hannaway, et al. Raman and conductivity studies of boron-doped microcrystalline diamond, faceted nanocrystalline diamond and cauliflower diamond films. In this paper, we focus on optimizing the growth of thin diamond films by plasma-enhanced microwave chemical vapor deposition.
    keywords: afm; boron; chemical; cm−1; conditions; deposition; diamond; doping; electrodes; films; growth; high; highest; implantable; intensity; level; low; material; method; ncd; peak; quality; raman; rate; resistance; sample; size; spectra; spectroscopy; substrate; surface; temperature; thickness
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        item: #316 of 1243
          id: ap-1644
      author: Náhlík, Josef; Janoušek, Michal; Šobáň, Zbyněk
       title: Gated Graphene Electrical Transport Characterization
        date: 2012-01-05
       words: 1765
      flesch: 62
     summary: Water molecules behave as doping atoms, because the gate voltage affects their polarization and they add their own electric field intensity to the intensity caused by the Figure 2: Scheme of the polarization of water molecules by gate voltage in backgated graphene. Polarized molecules and their electric intensity could be one of the effects that cause hysteresis be- tween the forward and backward sweep of gate voltage in the resistivity/gate voltage characteristic.
    keywords: applied; backward; behavior; carbon; characteristics; electrical; fig; figure; forward; gate; graphene; high; hysteresis; interesting; layer; material; method; molecules; resistivity; samples; second; silicon; speed; substrate; sweep; temperature; transparent; transport; voltage
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        item: #317 of 1243
          id: ap-1648
      author: Schneider, Dorian
       title: Control Algorithms for Large-scale Single-axis Photovoltaic Trackers
        date: 2012-01-05
       words: 4000
      flesch: 67
     summary: This fact is exploited to further simplify the subsequent calculations: A variable δ is introduced, according to: δ = { +1 sun is in the east, i.e. ψη ∈ ]0◦, 180◦], −1 sun is in the west, i.e. ψη ∈ ]−180◦, 0◦]. [h] an g le [° ] backtracking backtracking tracking + backtracking optimal tracking sun azimuth sun elevation Figure 5: Tracking and backtracking angles, sun azimuth and elevation plotted for January 1st, 2012 in Berlin.
    keywords: 5/2012; acta; alignment; angle; axis; azimuth; backtracking; control; cos; elevation; extra; fig; figure; free; location; module; optimal; photovoltaic; plane; polytechnica; position; power; results; rotation; sat; sats; section; shading; shadow; sin; single; solar; sun; surface; system; tilt; tracker; tracking; vector; west; yield; ; 
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        item: #318 of 1243
          id: ap-1650
      author: Selecký, Martin; Meiser, Tomáš
       title: Integration of Autonomous UAVs into Multi-agent Simulation
        date: 2012-01-05
       words: 3584
      flesch: 55
     summary: In this paper we present solutions to the problems that we had to deal with in the process of integrating two hardware UAVs into an existing multi-agent simulation system with additional virtual UAVs, resulting in a mixed reality system where hardware UAVs and virtual UAVs can co-exist, coordinate their flight and cooperate on common tasks. Hardware UAVs are capable of on-board planning and reasoning, and can cooperate and coordinate their movement with one another, and also with virtual UAVs.
    keywords: 5/2012; acta; agent; agent system; agentfly; aircraft; autonomous; autopilot; avoidance; bandwidth; board; collision; communication; computer; connected; control; cooperative; coordinate; curves; distance; error; exchange; figure; flight; gps; ground; hardware; kestrel; mechanisms; multi; planning; plans; polytechnica; position; range; real; safety; section; simulated; simulation; system; telemetry; time; trajectory; turn; uavs; virtual; vol; wind
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        item: #319 of 1243
          id: ap-1652
      author: Spohner, Milan
       title: A Study of the Properties of Electrical Insulation Oils and of the Components of Natural Oils
        date: 2012-01-05
       words: 2002
      flesch: 54
     summary: Keywords: conductivity, density, dielectric constant, FAME, insulating oil, lauric acid, loss number, methyl ester, midel, oleic acid, rapeseed oil, stearic acid, transformer oil, vegetable oil, vibratory viscometer, viscosity. 2.2 Dielectric properties For a study of dielectric properties, samples of FAME and rapeseed oil methyl ester were selected for a com- parison with the two fatty acids found in rapeseed oil.
    keywords: acid; activation; agilent; conductivity; density; dependence; dielectric; electrical; energy; ester; fame; figure; frequency; kmol−1; liquid; loss; methyl; midel; mineral; natural; number; oil; oils; oleate; parameters; properties; rapeseed; temperature; transformer; values; viscosity
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        item: #320 of 1243
          id: ap-1654
      author: Turoň, Václav
       title: A Study of Parameters Setting of the STADZT
        date: 2012-01-05
       words: 3305
      flesch: 60
     summary: 52 No. 5/2012 600 1200 10 20 30 40 50 60 600 1200 10 20 30 40 50 60 75 150 10 20 30 40 50 60 75 150 10 20 30 40 50 60 19 38 10 20 30 40 50 60 19 38 10 20 30 40 50 60 9 19 10 20 30 40 50 60 9 19 10 20 30 40 50 60 a) Time index[−] b) Time index[−] c) Time index[−] d) Time index[−] k [− ] k [− ] k [− ] k [− ] e) Time index[−] f) Time index[−] g) Time index[−] h) Time index[−] k [− ] k [− ] k [− ] k [− ] 0 0 0 0 0 0 0 0 Figure 4: STADZT zolograms created by window length 128 samples and various overlap a) 127 samples ∼ 99 % overlap, b) 120 samples ∼ 93 % overlap, c) 96 samples ∼ 75 % overlap, and d) 64 samples ∼ 50 % overlap. STFT spectrograms created by window length 128 samples and various window shape: e) 127 samples ∼ 99 percent overlap, f) 120 samples ∼ 99 % overlap, g) 96 samples ∼ 75 % overlap, and h) 64 samples ∼ 99 % overlap.
    keywords: analysed; analysis; basis; coefficients; figure; fourier; frequency; frequency resolution; function; index[−; information; length; non; overlap; paper; parameters; polynomials; processing; resolution; samples; segmentation; shape; signal; spectral; stadzt; stationary; stft; time; time index[−; time resolution; transform; window; zolotarev
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        item: #321 of 1243
          id: ap-1656
      author: Visioli, Antonio
       title: Research Trends for PID Controllers
        date: 2012-01-05
       words: 4554
      flesch: 58
     summary: Keywords: PID controllers, design, tuning, control structures. PID controllers are still a very active field of research, because it is recognized that they are often poorly tuned in industrial applications, and the performance that is achieved can be improved many times by using a more effective design technique for the PID-based control system.
    keywords: acta; action; applications; assessment; automatic; control; controllers; dead; derivative; design; disturbance; effective; engineering; error; event; feedforward; following; fractional; hägglund; ifac; industrial; integral; journal; load; new; order; parameters; particular; performance; pid; pid controllers; point; polytechnica; practical; practice; proceedings; process; process control; processes; proportional; research; response; rules; set; signal; step; structures; suitable; system; techniques; time; tuning; unit; value; visioli; vol
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        item: #322 of 1243
          id: ap-1658
      author: Votava, Ondřej
       title: A Network Simulation Tool for Task Scheduling
        date: 2012-01-05
       words: 4297
      flesch: 66
     summary: Keywords: task scheduling, DAG scheduling, simulation, network simulation. (2) 2.1 Scheduling algorithms The problem of task scheduling is claimed to be NP- complete [21, 7] and therefore intensive research in heuristics has been done.
    keywords: acta; algorithms; application; bps; communication; computation; computer; computing; conference; data; delay; differences; distributed; dynamic; execution; expected; figure; gbit; graph; heterogeneous; heuristics; idea; international; limited; model; network; new; nodes; omnet++; order; paper; parallel; polytechnica; problem; proceedings; properties; real; results; schedule; scheduling; set; simulation; specific; static; structure; systems; task; testing; time; tool; vol
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        item: #323 of 1243
          id: ap-1660
      author: Weyer, Sören; Röthlingshöfer, Lisa; Walter, Marian; Leonhardt, Steffen
       title: Evaluation of Bioelectrical Impedance Spectroscopy for the Assessment of Extracellular Body Water
        date: 2012-01-05
       words: 3176
      flesch: 56
     summary: For -2ó +2ó Mean of fluid balance and BIS ECF [ ] l D if fe re n c e b e tw e e n f lu id b a la n c e a n d B IS E C F [ l ] 0 0.5 1 1.5 2 2.5 3 3.5 4 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 Figure 5: Bland-Altman plots illustrating the small- est and greatest difference between the changes in extracellular body fluid (ECF) estimated by BIS and the logged fluid balance plotted against the mean of the two methods. 1 Introduction Maintenance of a constant volume and stable composi- tion of body fluids is essential for homeostasis.
    keywords: 5/2012; acta; animal; balance; bioelectrical; bioimpedance; bis; blood; body; circuit; clinical; cole; conductive; current; dispersion; ecmo; electrical; experiment; extracellular; extracellular fluid; figure; fluid; frequencies; hanai; impedance; infusion; journal; khz; measurement; medium; membrane; methods; model; nonconductive; parallel; parameters; physiological; pig; pigs; polytechnica; possible; resistance; resistivity; specific; spectroscopy; status; suspension; tissue; volume; water; weight
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        item: #324 of 1243
          id: ap-1664
      author: Závodná, Michaela
       title: The Electrification of Tramways in Ostrava in 1900–1901
        date: 2012-01-05
       words: 1617
      flesch: 66
     summary: Electric trams were to be put into operation in Ostrava in October 1900 3 Municipal involvement Although the municipal authorities knew about the tram electrification, because the municipality itself was a shareholder in Mährisch-Ostrauer Elektrizitäts- Aktien-Gesellschaft and some members of the mu- nicipal self-government held shares in Brünner Loka- leisenbahngesellschaft, the municipal self-government itself did not attempt to municipalize the network of electric tramways in Ostrava.
    keywords: amo; brünner; company; economic; electricity; electrification; fund; ganz; inv; lokaleisenbahngesellschaft; moravská; municipal; new; ostrava; power; proceedings; public; schuckert; smmd; steam; trams; tramways; transport; werke
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        item: #325 of 1243
          id: ap-1666
      author: Kratochvíl, Jan; Kružík, Martin
       title: Energetic Approach to Large Strain Gradient Crystal Plasticity
        date: 2012-01-06
       words: 3845
      flesch: 72
     summary: t ∈ [0, 1]. ∈ Ω } .
    keywords: 6/2012; acta; approach; crystal; deformation; density; dissipation; domain; elastic; energetic; energy; evolution; existence; finite; forces; fp,∇fp; framework; gradient; gurtin; independent; internal; materials; mech; mielke; model; p,∇p; phys; plasticity; polytechnica; problem; q(t; rate; results; slip; solution; strain; system; theory; time; variables; y(t),z(t
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        item: #326 of 1243
          id: ap-1668
      author: Demo, Pavel; Sveshnikov, Alexey; Hošková, Šárka; Ladman, David; Tichá, Petra
       title: Physical and Chemical Aspects of the Nucleation of Cement-Based Materials
        date: 2012-01-06
       words: 3624
      flesch: 58
     summary: Possible connections with the corresponding properties for cement paste are discussed. Keywords: cement paste, induction period, calcium concentration, nucleation rate, time lag.
    keywords: 6/2012; acta; barrier; ca2; calcium; cement; cement paste; cluster; concentration; concrete; corresponding; critical; czech; energy; figure; formation; growth; hydrating; hydration; hypothesis; induction; initial; ions; lag; membrane; method; nucleation; paste; period; phase; polytechnica; portlandite; process; rate; republic; size; solution; stage; steady; supersaturation; surface; system; time; volume; water
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        item: #327 of 1243
          id: ap-1670
      author: Šmilauer, Vít; Hlaváček, Petr; Padevět, Pavel
       title: Micromechanical Analysis of Cement Paste with Carbon Nanotubes
        date: 2012-01-06
       words: 3952
      flesch: 65
     summary: There are controversial results for cement paste with admixed CNT up to 500 µm in length. [3, 19] and specifically for cement pastes [2, 4, 5, 9, 12].
    keywords: 6/2012; acta; carbon; cement; chm; clinker; clustering; clusters; cnf; cnt; composites; compressive; concrete; damage; distribution; energy; experimental; fibers; figure; flexural; fracture; grains; hydration; increase; length; mass; material; micromechanical; microstructure; mpa; nanotubes; paste; plain; polytechnica; properties; reinforcement; results; simulations; small; specimens; strain; strength; surface; table; tensile; uniform; volume; water
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        item: #328 of 1243
          id: ap-1672
      author: Nežerka, Václav; Zeman, Jan
       title: A Micromechanics-Based Model for Stiffness and Strength Estimation of Cocciopesto Mortars
        date: 2012-01-06
       words: 5048
      flesch: 69
     summary: These include estimates of the effective ther- mal conductivity of rubber-reinforced cement compos- ites [31], elasticity predictions for early-age cement [5] or alkali-activated [35] pastes, upscaling the compres- sive strength of cement mortars [26], and multi-scale simulations of three-point bending tests of concrete specimens [34]. Although these limi- tations have been overcome with the use of Portland cement in the last 50 years, lime mortars still find use in the restoration of historic structures.
    keywords: 6/2012; acta; available; brick; building; cement; coating; cocciopesto; concentration; concrete; construction; crushed; data; deviatoric; dil; dilute; e.g.; effect; elastic; estimates; experimental; factors; fig; figure; g(ik+1; gel; individual; influence; itz; lime; materials; matrix; mechanical; micromechanics; model; mori; mortars; order; overall; particles; phase; pichler; polytechnica; porosity; predictions; properties; r=1; representation; research; results; sand; scheme; section; stiffness; strength; stresses; tanaka; transition; vol; volume; volumetric; zaoui; zone
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        item: #329 of 1243
          id: ap-1674
      author: Rypl, Daniel; Bým, Tomáš
       title: Geometrical Modeling of Concrete Microstructure for the Assessment of ITZ Percolation
        date: 2012-01-06
       words: 6589
      flesch: 51
     summary: This paper deals with geometrical modeling of the concrete microstructure using realistic shapes of aggregate particles, the geometry of which is represented in terms of spherical harmonic expansion. In this continuum model, each randomly-placed 38 Acta Polytechnica Vol. 52 No. 6/2012 aggregate particle is surrounded by a shell of constant thickness representing the ITZ.
    keywords: 6/2012; acta; aggregate; aggregate particles; algorithm; bentz; bounding; bounding box; box; case; cement; center; closest; concrete; content; d.p; distance; e.j; expansion; figure; garboczi; geometrical; geometry; hard; harmonic; individual; integration; interfacial; intersection; itz; journal; level; material; microstructure; model; number; numerical; order; packing; particle; paste; percolation; periodic; phase; points; polytechnica; procedure; projection; properties; r(η,ϕ; refined; refined bounding; refinement; representative; representative volume; shapes; shell; single; size; spheres; spherical; starting; surface; thickness; transport; triangulation; volume; volumetric
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        item: #330 of 1243
          id: ap-1678
      author: Patzák, Bořek
       title: OOFEM — an Object-oriented Simulation Tool for Advanced Modeling of Materials and Structures
        date: 2012-01-06
       words: 4147
      flesch: 48
     summary: The implementation of individual elements is further facilitated by the library of classes representing inte- gration points, integration rules, and finite element interpolation spaces. The load balance recovery is achieved by reparti- tioning the problem domain and transferring the work (typically represented by finite elements) from one sub-domain to another.
    keywords: 6/2012; abstract; acta; adaptive; analysis; anchor; balancing; class; classes; code; concrete; corresponding; cross; design; details; different; domain; dynamic; element; elementevaluator; engineering; example; fig; figure; finite; functionality; geometry; implementation; individual; inheritance; integration; interface; load; local; material; methods; model; multiphysics; multiscale; nodes; object; oofem; optional; parallel; parent; particular; patzák; polytechnica; problem; rypl; section; services; simulation; solution; sparse; specific; step; test; vol; work
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        item: #331 of 1243
          id: ap-1680
      author: Kruis, Jaroslav; Koudelka, Tomáš; Krejčí, Tomáš
       title: Hygro-Thermo-Mechanical Analysis of a Reactor Vessel
        date: 2012-01-06
       words: 4369
      flesch: 57
     summary: The application of damage models is described in detail in [5]. Several damage models were used in the computer simulation.
    keywords: 6/2012; acta; analysis; boundary; computer; concrete; conditions; containment; creep; czech; damage; damage model; durability; equations; figure; finite; form; heat; humidity; hygro; increase; loading; local; losses; material; matrix; measurements; mechanical; model; moisture; nuclear; parameters; polytechnica; prescribed; prestress; radial; reactor; relative; results; service; situ; strength; temperature; tendon; tensile; thermo; time; transport; vapour; vessel; vol; water
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        item: #332 of 1243
          id: ap-1682
      author: Pospíšilová, Adéla; Lepš, Matej
       title: Global Optima for Size Optimization Benchmarks by Branch and Bound Principles
        date: 2012-01-06
       words: 5402
      flesch: 66
     summary: It is thus advan- tageous to decrease the upper bound on the basis of already obtained objective function values. (a) If the value of objective function m is lower than mmax, the algorithm goes to Step 2. (b) If objective function value m is greater than mmax, the value of the third variable from the end increases by one and the value of the next-to-last variable is set to its mini- mum.
    keywords: algorithm; areas; bar; benchmarks; bound; branch; constraints; continuous; cross; data; discrete; enumeration; function; global; global optimum; in2; ksi; lower; maximum; method; minimum; mmax; mmin; number; objective; objective function; optima; optimization; optimum; possible; potential; problem; programming; results; searched; sectional; set; solutions; space; step; structure; time; truss; upper; value; variables; vol; weight
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        item: #333 of 1243
          id: ap-1684
      author: Valášek, Michael; Šika, Zbynek
       title: Synthesis of Mechanisms by Methods of Nonlinear Dynamics
        date: 2012-01-06
       words: 6055
      flesch: 64
     summary: The currently used methods seem to be sufficiently powerful and able to find solutions for most problems in mechanism synthesis. The fundamental objective functions are typically constructed on the network of mechanism positions within the desired workspace.
    keywords: 6/2012; acta; angles; associated; bar; constant; constraints; coordinates; cos; design; dimensions; dissipative; dynamical; dynamics; equations; equilibrium; evolution; example; fig; figure; follows; forces; formulation; general; initial; j=1; length; lever; masses; mechanism; method; new; n∑ j=1; optimization; parameters; points; polytechnica; positions; rssr; set; simple; simulation; subsystems; synthesis; synthesized; system; task; time; transmission; values; vector; vol; yyxx; β1i; 
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        item: #334 of 1243
          id: ap-1688
      author: Skalák, Zdenek
       title: The Asymptotic Properties of Turbulent Solutions to the Navier-Stokes Equations
        date: 2012-01-06
       words: 4048
      flesch: 75
     summary: Strong Lp− solutions of the Navier- Stokes equations in Rm, with applications to weak solutions, Math. Z. 187 1984, 1471–480. On optimal decay rates for weak solutions to the Navier-Stokes equations in Rn, Math. Bohem., 126, 2001, 443– 455.
    keywords: acta; besov; concentration; condition; decay; decrease; definition; energy; equations; following; frequencies; initial; l2σ; large; lim; math; miyakawa; navier; paper; rate; results; schonbek; section; solutions; space; stokes; symmetric; t)−5/4; theorem; time; turbulent; vol; weak; ‖u(t)‖2
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        item: #335 of 1243
          id: ap-1690
      author: Sváček, Petr; Horáček, Jaromír; Honzátko, Radek; Kozel, Karel
       title: Simulation of Free Airfoil Vibrations in Incompressible Viscous Flow — Comparison of FEM and FVM
        date: 2012-01-06
       words: 6136
      flesch: 66
     summary: This corresponds to the results of the numeri- cal simulations presented since the system was found stable for upstream flow velocity 35 m/s and unstable for upstream flow velocity 40 m/s in the case of FEM and 42.5 m/s in the case of FVM. Symbol D denotes the diagonal matrix D = diag(0, 1, 1), non-dimensional time is denoted by t, and the non-dimensional space coordinates are denoted by x,y. Symbols u = (u,v)T and p stand for the dimensionless velocity vector and the dimen- sionless pressure, respectively.
    keywords: -20; 6/2012; acta; aeroelastic; aeroelasticity; airfoil; ale; analysis; angle; application; approximation; axis; boundary; cells; ci(t; computations; conditions; czech; dependence; dimensional; displacement; domain; dual; element; equations; fem; figure; finite; flow; fluid; flutter; frequency; fvm; incompressible; mesh; method; motion; n+1; nonlinear; numerical; order; polytechnica; pressure; problem; profile; results; rotation; scheme; solution; stokes; structure; system; time; tn+1; upstream; vector; velocity; vertical; viscous; vol; volume; γwt
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        item: #336 of 1243
          id: ap-1698
      author: Beskin, Grigorii; Greco, Giuseppe; Oganesyan, Gor; Karpov, Sergey
       title: On Some Statistical Properties of GRBs with Measured Redshifts Having Peaks in Optical Light Curves
        date: 2013-01-01
       words: 3965
      flesch: 76
     summary: • P: optical peaks arise during the main phases of the prompt gamma-ray emission; we will refer to these as prompt optical emission. In particular, we were interested in comparing the rising phases of optical emission with simultaneous behaviour at gamma-ray wavelengths, as observed by space-borne telescopes.
    keywords: a(u; acta; activity; classes; correlations; cosmological; emission; energy; erg; events; fit; frame; gamma; grbs; light; linear; lo g; luminosity; op t; optical; parameters; peak; polytechnica; prompt; ray; −0.04; −0.09; −0.20; −0.21; −0.25
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        item: #337 of 1243
          id: ap-170
      author: Toman, J.; Černý, R.
       title: Thermal and Hygric Expansion of High Performance Concrete
        date: 2001-01-01
       words: 1437
      flesch: 57
     summary: The experimental results show that both the effect of temperature on the values of linear thermal expansion coefficients and the effect of moisture on the values of linear hygric expansion coefficients are very significant and cannot be neglected in practical applications. Keywords: concrete, linear thermal expansion, linear hygric expansion, moisture, temperature.
    keywords: changes; coefficient; concrete; czech; expansion; high; hygric; kgm; length; linear; measured; moisture; performance; samples; temperature; thermal
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        item: #338 of 1243
          id: ap-1700
      author: Giovannelli, Franco
       title: Astroparticle Physics Today
        date: 2013-01-01
       words: 10368
      flesch: 63
     summary: This enhances the efficiency of the process of mass transfer from the primary star onto the secondary collapsed star, as discussed by Giovannelli & Ziolkowski (1990) and by Giovannelli et al. (2007) in the case of A 0535+26. Giovannelli & Sabau-Graziati (2011) discussed the history of the discovery of optical indicators of high energy emission in the prototype system A0535+26/HDE 245770 ≡ Flavia’ star, updated to the March–April 2010 event when a strong optical activity occurred roughly 8 days before the X-ray out- burst (Caballero et al., 2010) that was predicted by Giovannelli, Gualandi & Sabau-Graziati (2010). Recent evidence from the Pierre Auger Observatory suggests a transition, at 5 EeV–10 EeV in the com- position of UHECRs, from protons to heavier nuclei such as iron (Abraham et al., 2010).
    keywords: abdo; acta; apj; astronomy; astroparticle; astrophysics; background; beall; behaviour; bologna; chaty; compact; composition; compositori; cosmic; cosmic rays; cosmological; dark; data; density; discovery; distribution; e.g.; ebl; eds; emission; energies; energy; energy cosmic; et al; evolution; experiments; extragalactic; fermi; fields; formation; frontier; galactic; galaxies; galaxy; gamma; gev; giovannelli; graziati; grbs; high; high energy; history; important; intensity; italian; italy; jets; knee; large; light; magnetic; mannocchi; mass; matter; measurements; mem; model; multifrequency; nature; near; neutrino; neutron; new; nuclei; objects; observations; observed; open; optical; origin; particle; particle physics; physical; physics; polytechnica; possible; problems; radiation; radio; range; ray; rays; references; reionization; results; review; sabau; society; sources; space; spectrum; star; study; systems; tev; time; uhecrs; universe; vhe; years
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        item: #339 of 1243
          id: ap-1702
      author: Hudec, René; Hudec, Lukáš
       title: Finding Hidden Treasures: Investigations in US Astronomical Plate Archives
        date: 2013-01-01
       words: 1848
      flesch: 60
     summary: 5. Suggested strategy Our suggested strategy for data mining and plate digitization in US plate archives is as follows. We report here on an ongoing investigation of US astronomical plate archives and tests of the suitability of transportable scanning devices for in situ digitization of archival astronomical plates.
    keywords: acta; archival; archives; astronomical; available; cases; collections; czech; device; difficult; digitization; example; figure; hudec; images; information; mccormick; number; numerous; observatories; observatory; osborn; photographic; plate; polytechnica; project; robbins; scientific; series; transportable; university
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        item: #340 of 1243
          id: ap-1704
      author: Hudec, René; Kopel, Fabian; Macsics, Robert; Hadwige, Markus; Heber, Ulrich; Cayé, Walter
       title: Classification of Variable Objects for Search for GRB Candidates on Bamberg Photographic Plates
        date: 2013-01-01
       words: 1978
      flesch: 54
     summary: Acta Polytechnica Acta Polytechnica 53(1):27–29, 2013 © Czech Technical University in Prague, 2013 available online at http://ctn.cvut.cz/ap/ CLASSIFICATION OF VARIABLE OBJECTS FOR SEARCH FOR GRB CANDIDATES ON BAMBERG PHOTOGRAPHIC PLATES René Hudeca,b,∗, Fabian Kopelc, Robert Macsicsc, Markus Hadwigec, Ulrich Heberd, Walter Cayéc a Astronomical Institute, Academy of Sciences of the Czech Republic, Ondřejov, Czech Republic b Cech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic c Dientzenhofer Gymnasium, Bamberg, Germany d Dr Remeis Observatory, University of Erlangen, Bamberg, Germany ∗ corresponding author: rhudec@asu.cas.cz Abstract. We have re-analysed the objects recorded in 6 mea- surement books for southern sky surveys, with empha- sis on detailed investigation of non-classified objects suspected to occur only once (i.e., visible only on one plate and below the limit of other plates).
    keywords: acta; asteroids; astronomical; bamberg; candidates; catalogue; classification; classified; czech; defects; detailed; emulsion; figure; grb; high; hudec; images; jugend; non; objects; observatory; patrol; plates; project; real; size; sky; southern; stars; study; variable
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        item: #341 of 1243
          id: ap-1706
      author: Hudec, René; Petráček, Vojtěch; Šnita, Dalimil
       title: Czech Contribution to LOFT
        date: 2013-01-01
       words: 1938
      flesch: 51
     summary: Acta Polytechnica Acta Polytechnica 53(1):30–32, 2013 © Czech Technical University in Prague, 2013 available online at http://ctn.cvut.cz/ap/ CZECH CONTRIBUTION TO LOFT René Hudeca,b,∗, Vojtěch Petráčekc, Dalimil Šnitad a Astronomical Institute, Academy of Sciences of the Czech Republic, CZ-25165 Ondřejov, Czech Republic b Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 2, CZ-16627 Prague, Czech Republic c Czech Technical University in Prague, Faculty of Nuclear Engineering, Břehová 78/7, CZ-11000 Prague, Czech Republic d Institute of Chemical Technology, Technická 5, CZ-16628 Prague,Czech Republic ∗ corresponding author: rhudec@asu.cas.cz Abstract. Production expertise The collaboration teams also have the following pro- duction expertise: • prototype production of SDD for the ALICE exper- iment – ICM Prague; • Post-prototyping contacts in the ON Semiconduc- tor: Roznov, Czech Republic (together with our team, the company tested double-sided technology and later succesfully produced many of the pixel detectors for the ATLAS detector at LHC); • selection and detector tests – participation in de- tector construction (Trieste and Torino); • design and production of the low voltage power supply system for ALICE SDD.
    keywords: area; available; consortium; contribution; ctu; czech; design; detector; drift; esa; expertise; eye; feroci; following; glass; hudec; institute; large; lobster; loft; mission; monitor; onboard; participation; plates; prague; production; ray; republic; sdd; silicon; space; team; technical; technology; tests; university
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        item: #342 of 1243
          id: ap-1710
      author: Karpov, Sergey; Beskin, Grigory; Bondar, Sergey; Perkov, Alexey; Ivanov, Evgeny; Guarnieri, Adriano; Bartolini, Corrado; Greco, Giuseppe; Shearer, Andy; Sasyuk, Vyacheslav
       title: Status and Perspectives of the Mini-MegaTORTORA Wide-field Monitoring System with High Temporal Resolution
        date: 2013-01-01
       words: 4448
      flesch: 57
     summary: Such studies have been performed [24, 25], but due to tech- nical limitations it has only been possible either to achieve high temporal resolution of tens of millisec- onds in monitoring of 5′–10′ fields, or to use 5–10 seconds time resolution in wider fields. For FAVOR, TORTORA and Mini-MegaTORTORA the limits correspond to 3σ detection on a single frame, and may differ from their real-time operational values due to non-ergodic pixel statistics when using the image intensifier. and classification of fast optical transients.
    keywords: acta; beskin; bondar; ccd; channel; color; complex; data; design; detection; different; et al; fast; favor; field; filters; follow; frames; grb; high; image; imaging; intensifier; karpov; kazan; light; limit; megatortora; mini; mmt; mode; monitoring; noise; objective; objects; observations; operation; optical; pixel; polarimetric; processing; real; regime; resolution; search; second; short; sky; spain; study; system; telescope; temporal; time; transients; university; variability; variant; view; wide
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        item: #343 of 1243
          id: ap-1712
      author: Opiela, Rafał; Małek, Katarzyna; Mankiewicz, Lech; Siudek, Małgorzata; Sokołowski, Marcin; Żarnecki, Aleksander Filip
       title: Photometric Analysis of Pi of the Sky Data
        date: 2013-01-01
       words: 4134
      flesch: 64
     summary: Precision dispersion of star brightness measurements from standard photometry for 200 s exposures (20 co-added frames) from the Pi of the Sky prototype at the Las Campanas Observatory in Chile. • Identification in the image by photometry with catalog stars from external star catalogs.
    keywords: acta; analysed; analysis; bad; basis; brightness; calculated; case; catalog; catalog stars; ccd; correction; dark; data; database; detector; experiment; figure; frames; good; histograms; image; large; light; line; magnitudo; measurements; med|; methods; new; object; photometry; polytechnica; procedure; project; prototype; quality; reduction; sky; stars; system; time; value; variable; |mcorr
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        item: #344 of 1243
          id: ap-1716
      author: Ulyanov, Alexei; Hanlon, Lorraine; McBreen, Sheila; Foley, Suzanne
       title: Study of Silicon Photomultipliers for the GRIPS Calorimeter Module
        date: 2013-01-01
       words: 2342
      flesch: 56
     summary: On-axis point source sensitivity versus calorimeter energy resolution (in units of the baseline resolution) for a narrow line (106 s exposure) source and a continuum GRB spectrum (1 s exposure). On-axis continuum point source sensitivity for a 106 s exposure versus transverse crystal size (left) and versus calorimeter depth resolution (right); E−2 spectrum, 0.5 MeV <
    keywords: 10×; baseline; calorimeter; compton; continuum; crystals; depth; design; detector; energy; factor; figure; gamma; grb; grips; grm; initial; kev; mev; mission; module; pair; photomultipliers; ray; readout; resolution; scintillator; sensitivity; sensl; silicon; simulations; sipm; size; source; spectrum; study; telescope
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        item: #345 of 1243
          id: ap-1718
      author: Żarnecki, Aleksander Filip; Piotrowski, Lech Wiktor; Mankiewicz, Lech; Małek, Sebastian
       title: Luiza: Analysis Framework for GLORIA
        date: 2013-01-01
       words: 2957
      flesch: 50
     summary: The Luiza analysis framework for GLORIA is based on the Marlin package, which was originally developed for data analysis in the new High Energy Physics (HEP) project, International Linear Collider (ILC). Keywords: Telescope network, image processing, data analysis.
    keywords: acta; analysis; basic; chain; class; classes; collider; computing; data; dedicated; detector; development; documentation; example; experiments; figure; file; fits; framework; gloria; ilc; image; large; linear; luiza; marlin; methods; modules; object; output; package; parameter; physics; pixel; polytechnica; processing; processor; project; reconstruction; simple; steering; step; structure; tasks; tools; user; warsaw
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        item: #346 of 1243
          id: ap-1719
      author: Bartlova, Milada; Aubrecht, Vladimir; Bogatyreva, Nadezhda; Holcman, Vladimir
       title: Multigroup Approximation of Radiation Transfer in SF6 Arc Plasmas
        date: 2013-01-02
       words: 2832
      flesch: 61
     summary: Net emission coefficients Assuming local thermodynamic equilibrium, coeffi- cient of absorption κν is related to the coefficient of emission εν by Kirchhoff’s law εν = Bνκν. Net emission coefficients of SF6 plasma with radius 0.1 cm as a function of temperature for two different cuttings of the frequency interval and various absorption means; comparison with re- sults of Aubrecht
    keywords: absorption; acta; approximation; arc; aubrecht; calculated; coefficients; cutting; emission; free; frequency; function; groups; high; isothermal; mean; method; mpa; multigroup; net; phys; planck; plasma; ptfe; radiation; results; rosseland; sf6; species; spectral; switching; temperature; transfer; values
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        item: #347 of 1243
          id: ap-172
      author: Toman, J.; Černý, R.
       title: Temperature and Moisture Dependence of the Specific Heat of High Performance Concrete
        date: 2001-01-01
       words: 1905
      flesch: 57
     summary: [Te, Ts], K is the heat capacity of the calorimeter, mw is the mass of the water, cw is the specific heat of water, Tw0 is the initial water temperature, L is the latent heat of evaporation of water, Qr is the reaction heat, �m is the mass of evaporated water, � � �m m m m m Upon adding � �Q m c
    keywords: building; calorimeter; changes; concrete; czech; dependence; dry; heat; high; kgm; mass; materials; measured; moisture; range; results; sample; size; specific; specific heat; temperature; water
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        item: #348 of 1243
          id: ap-1721
      author: Batani, Dimitri; Hulin, Sebastien; Ducret, Jean Eric; d’Humieres, Emmanuel; Tikhonchuk  et al., Vladimir
       title: Development of the PETAL Laser Facility and its Diagnostic Tools
        date: 2013-01-02
       words: 4832
      flesch: 61
     summary: The first phase of PETAL commissioning (start- ing from 2015) will include characterization of laser systems and diagnostics, studies of protons, X-rays, and electrons produced in laser plasma interactions. EMP measurements performed by CEA on laser facilities: 2000-2004 LLE-Omega; 2006 LULI2000; 2007-2009 LULI-Pico2000; 2009-2010 LLE; in addition Omega EP US feedback on NIF and EMP measure- ments on TITAN National Ignition Campaign.
    keywords: acta; activation; angular; beam; bordeaux; cea; chamber; conference; construction; density; design; development; diagnostics; electron; emission; emp; energy; experiments; facilities; facility; fast; fields; figure; france; fusion; hard; high; ignition; intensity; interaction; ions; large; laser; lmj; magnetic; matter; mev; m−1; nif; omega; parabola; particles; particular; petal; petal laser; phase; physics; plasma; polytechnica; project; proton; pulse; radiation; radiography; range; rays; research; review; science; scientific; second; shock; short; solid; source; spectrometer; spectrum; system; target; tools
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        item: #349 of 1243
          id: ap-1723
      author: Bogachev, Nikolay N.; Bogdankevich, Irina L.; Gusein-zade, Namik G.; Tarakanov, Vladimir P.
       title: Computer Simulation of a Plasma Vibrator Antenna
        date: 2013-01-02
       words: 1475
      flesch: 62
     summary: Many experiments have been carried out with plasma antennas to transmit and receive signals. Keywords: computer simulation, plasma antenna, KARAT code, MMANA program.
    keywords: antenna; coaxial; code; computer; density; dipole; figure; frequency; karat; length; mda; metal; mmana; modeling; pda; physics; plasma; power; radiation; simulation; studies; vibrator
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        item: #350 of 1243
          id: ap-1725
      author: Bordusau, Siarhei; Madveika, Siarhei; Dostanko, Anatolii
       title: The Process of Plasma Chemical Photoresist Film Ashing from the Surface of Silicon Wafers
        date: 2013-01-02
       words: 2759
      flesch: 51
     summary: [1, 4, 5]. Peculiar features of microwave energy and silicon wafer interaction should be taken into consideration as well as used in developing and their processing in plasma microwave discharge. Keywords: microwave plasma, microwave plasmatron, plasma chemical ashing of photoresist.
    keywords: ashing; beginning; chamber; chemical; chemical photoresist; delay; discharge; energy; film; formation; generation; influence; investigation; microwave; microwave energy; microwave plasma; photoresist; plasma; plasma chemical; power; process; processes; rate; reaction; respect; semiconductor; silicon; silicon wafers; stage; surface; treatment; wafers; warming
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        item: #351 of 1243
          id: ap-1727
      author: Borgun, Ievgeniia V.; Azarenkov, Mykola O.; Hassanein, Ahmed; Tseluyko, Oleksandr F.; Maslov, Vasyl I.; Ryabchikovk, Dmitro L.
       title: The Formation of a Power Multi-Pulse Extreme Ultraviolet Radiation in the Pulse Plasma Diode of Low Pressure
        date: 2013-01-02
       words: 4185
      flesch: 63
     summary: Radiation energies (spike and wide pulse en- ergies) in the 12.2 ÷ 15.8 nm wavelength range as func- tions of the stored energy for the different anode di- ametres: da = 1.5, 2.5, 5.0 mm. and third half-periods is high in spite of a much lower (as compared to the first half-period) energy pump, indicates that the number of particles in the dense radiating plasma remains nearly constant for a fairly long time (approximately 6 µs). The conversion efficiency of pumped energy into radiation energy at the double layer formation (beam mechanism of plasma heating) is essentially higher in comparison with ordinary heating by current, be- cause in first case approximately all energy is pumped in very small volume.
    keywords: anode; beam; conversion; current; dense; detector; diode; discharge; discharge current; double; efficiency; electrode; electron; energies; energy; euv; extreme; figure; formation; half; heating; high; intensity; ions; layer; multi; period; plasma; power; pulse; radiation; radiation energy; range; region; second; spikes; stored; surface; tin; voltage; wavelength; wavelength range
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        item: #352 of 1243
          id: ap-1729
      author: Caniello, Roberto; Vassallo, Espedito; Cremona, Anna; Grosso, Giovanni; Dellasega, David; Canetti, Maurizio; Miorin, Enrico
       title: Growth and Physical Structure of Amorphous Boron Carbide Deposited by Magnetron Sputtering on a Silicon Substrate with a Titanium Interlayer
        date: 2013-01-02
       words: 3004
      flesch: 61
     summary: [21] A. Z. Sadek, et al. Anodization of Ti thin film deposited on ITO. [11] C. C. Klepper, et al. Amorphous boron coatings produced with vacuum arc deposition technology.
    keywords: acta; adhesion; amorphous; b4c; bare; boron; boron carbide; carbide; coatings; columnar; deposition; diffraction; effect; fig; films; growth; high; increases; interlayer; magnetron; measurements; microscopy; milan; physical; pressure; properties; roughness; scratch; silicon; solid; sputtering; stress; structure; substrate; surface; technology; temperature; thickness; thin; titanium; vacuum
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        item: #353 of 1243
          id: ap-1731
      author: Cech, Jan; Hanusova, Jana; Stahel, Pavel; Slavicek, Pavel
       title: Diffuse Coplanar Surface Barrier Discharge in Nitrogen: Microdischarges Statistical Behavior
        date: 2013-01-02
       words: 2288
      flesch: 54
     summary: From the presented data the tendency is that the substantial number of microdischarges (identi- fied as discharge current peaks) do not form new mi- crochannels but rather prolongate or branch existing discharge microchannels. Diffuse coplanar surface barrier discharge and its applications for in-line processing of low-added-value materials.
    keywords: barrier; behavior; cell; coplanar; corresponding; crossing; current; dcsbd; dielectric; discharge; electrode; fig; gap; half; high; iccd; images; incidence; input; matrices; microchannels; microdischarges; negative; nitrogen; number; peaks; period; plasma; positive; setup; surface; voltage
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        item: #354 of 1243
          id: ap-1735
      author: Cikhardt, Jakub; Klír, Daniel; Kubeš, Pavel; Kravárik, Josef; Rezác, Karel; Šíla, Ondrej; Shishlov, Alexander V.; Labetsky, Alexey Yu.
       title: The Construction of the Fast Resistive Bolometer for a SXR Measurement on the GIT-12 Facility
        date: 2013-01-02
       words: 2780
      flesch: 62
     summary: Introduction The ohmic bolometer is based on the principle of trans- formation of radiated energy into thermal energy. Shot Current Triple shell SXR energy No. (MA) Gas-puff (kJ) 1 3.73 Ne-Ne-Ne 50 2 3.55 D2-D2-D2 13 3 3.64 D2-D2-D2 22 4 2.58 D2-D2-D2 21 5 3.60 Ne-D2-D2 28 6 3.36 Ne-D2-D2 23 7 3.36 Ne-D2-D2 26 8 3.10 Ne-D2-D2 18 9 3.28 Ne-D2-D2 24 10 3.66 Ar-D2-D2 14 11 2.16 D2-D2-D2 27 Table 2.
    keywords: bolometer; characteristic; copper; current; detector; deuterium; element; energy; experiments; facility; fig; foil; gas; git-12; kinetic; material; measured; measurement; neon; power; puff; pulse; radiation; resistance; resolution; sensitive; sensitivity; shell; supply; sxr; temperature; thermal; time
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        item: #355 of 1243
          id: ap-1737
      author: Cutroneo, Mariapompea; Torrisi, Lorenzo; Ando’, Lucio; Cavallaro, Salvatore; Ullschmied, Jiri; Krasa, Josef; Margarone, Daniele; Velyhan, Andreji; Pfeifer, Miroslav
       title: Thomson Parabola Spectrometer for Energetic Ions Emitted from Sub-ns Laser Generated Plasmas
        date: 2013-01-02
       words: 2601
      flesch: 57
     summary: Several homogeneous Au samples ranging in thickness from 0.6 to 50 mi- crons were irradiated at the same experimental and geometrical conditions for laser energy, focal position and magnetic-electric deflections. The lowermost parabola corresponds to the deflected protons, while the other parabolas corresponds to Au ions with high charge states.
    keywords: acceleration; charge; density; detector; different; direction; electric; electron; energies; energy; experimental; fields; figure; forward; high; intensity; ion; ions; kinetic; laser; magnetic; maximum; mev; order; parabola; physics; plasma; prague; proton; results; spectrometer; state; target; thickness; thin; thomson; torrisi; tosca; tps
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        item: #356 of 1243
          id: ap-1739
      author: Fantova, Vladyslava; Bujaček, Karol; Kříha, Vítězslav; Julák, Jaroslav
       title: Inactivation of Candida albicans by Corona Discharge: The Increase of Inhibition Zones Area After Far Subsequent Exposition
        date: 2013-01-02
       words: 2437
      flesch: 55
     summary: The overlapping of inhibition zones was observed for the distance of 1 cm, where it was difficult to distinguish particular inhibition zones, therefore this sample was excluded from the data processing. In case of the four times exposed agars, we observed significant differences in inhibition zone areas, dependent not only on the exposition site distances, but also on the exposition order.
    keywords: agar; albicans; areas; atmospheric; candida; cap; concentration; corona; czech; decontamination; direct; discharge; dish; distance; effect; electrode; experiments; expositions; factors; far; figure; inactivation; inhibition; near; negative; order; petri; plasma; point; prague; radiation; species; subsequent; surface; treatment; university; zone
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        item: #357 of 1243
          id: ap-174
      author: Toman, J.; Černý, R.
       title: Thermal Conductivity of High Performance Concrete in Wide Temperature and Moisture Ranges
        date: 2001-01-01
       words: 1803
      flesch: 62
     summary: LS c T t x t x t x t t t � ��� � � � � , , d d 0 0 1 2 � � ��� � � � � � �� � c T t x t x t c T t x t x t t x t x t x t t , , ,, , (4) Denoting IT c T t t c T� �� �� � � �d d� � we obtain LS
    keywords: c t; concrete; conductivity; czech; dependence; fraction; heat; high; k t; kgm–3; materials; measurements; moisture; range; sand; size; t t; t �; temperature; thermal; water
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        item: #358 of 1243
          id: ap-1741
      author: Godun, Dmitriy V.; Bordusov, Sergey. V.; Dostanko, Anatoliy P.
       title: Systems of Electronic Overcurrent Protection in Pulse Power Generator Operating on Plasma Load
        date: 2013-01-02
       words: 1685
      flesch: 52
     summary: When elaborating current protection systems opti- cal systems of data transfer with the switch period up to 75 ns has been applied which ensure the reten- tion interval necessary to turn the generator off. The fast-acting complex protection system of pulse power generator is to ensure its blocking with the lapse of time not exceeding 100 nanoseconds.
    keywords: circuit; control; current; discharge; driver; electronic; generator; high; igbt; load; operating; permissible; plasma; power; protection; protection system; pulse; pulse current; system; temperature; threshold; transistors; value; voltage
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        item: #359 of 1243
          id: ap-1743
      author: Golosov, Dmitriy A.; Zavatskiy, Sergey M.; Melnikov, Sergey N.
       title: Physical and Electrical Properties of Yttria-Stabilized Zirconia Thin Films Prepared by Radio Frequency Magnetron Sputtering
        date: 2013-01-02
       words: 3427
      flesch: 64
     summary: In the present paper, the authors report the syn- thesis of YSZ thin films by RF magnetron sputtering and report the results of studying the structural and electrical properties of YSZ films. In order to form the crystalline structure, the deposited films were annealed in air over a temperature range of 700 ÷ 900 ◦C. By XRD analysis it was established that as the deposited films were amorphous, they crystallized into a pure cubic structure as a result of annealing in air at a temperature above 820 ◦C. The electrophysical properties of YSZ films were investigated on structures such as Ni/YSZ/Pt/Ti/Si and Ni/YSZ/Si.
    keywords: air; annealing; conductivity; constant; deposited; deposition; dielectric; figure; films; frequency; gas; high; ionic; loss; magnetron; min; power; properties; rate; solid; sputtering; stabilized; structures; substrates; tangent; temperature; thin; time; ysz; yttria; zirconia
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        item: #360 of 1243
          id: ap-1747
      author: Gurin, Anatolii A.; Adamenko, Andrii S.; Adamenko, Stanislav V.; Kuzmenko, Mykola M.
       title: Proton- and -radiation of the Micro-Pinch with the Boron-Containing Target
        date: 2013-01-02
       words: 4213
      flesch: 62
     summary: (This number is determined by counting the total number of proton tracks, de- flected by the magnetic field, directly in the magnet gap with an additional small 5 mm aperture at the en- trance into magnet). “Heads” of strips, its close to the pinhole axis edges, are formed by deep latent tracks of fast protons with energies from 0.6 to 1 MeV, while the continuation of the strips represented highly degraded tracks down to the bottom of track formation energy 100 keV. The images, and all of their details recorded by the pin- hole, are not snapshots of hot spot but the integral pictures without any time binding.
    keywords: acceleration; alpha; analyser; anode; average; axis; beam; boron; camera; case; current; data; dense; detectors; diode; energy; experiments; fast; field; figure; fusion; groups; heavy; helium; high; hot; hot spot; image; ions; kev; loci; magnetic; mev; micro; nuclei; number; parabola; particles; pinch; pinhole; plasma; protons; radiation; range; results; sdam; solid; spot; target; theor; thomson; time; total; tracks; values
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        item: #361 of 1243
          id: ap-1749
      author: Hlavatá, Lucie; Serbanescu, Rodica; Hlochová, Lenka; Kozáková, Zdenka; Krčma, František
       title: Pin Hole Discharge Creation in Na2SO4 Water Solutions
        date: 2013-01-02
       words: 2392
      flesch: 61
     summary: Oxidative processes occurring when pulsed high voltage discharges degrade phenol in aqueous solution. Oscilloscope Tektronix TDS 1012B operating up to 100 MHz with Tektronix P6015A high volt- age probe was used to obtain time resolved charac- teristics of discharge voltage and current with focus on the breakdown moment.
    keywords: acta; barrier; breakdown; bubble; characteristics; cm−1; conductivity; configuration; creation; current; diaphragm; dielectric; discharge; electrical; electrode; electrolyte; figure; formation; high; hole; increase; mean; moment; pin; plasma; solution; thickness; time; values; voltage; water
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        item: #362 of 1243
          id: ap-1751
      author: Horký, Miroslav
       title: Instability Growth Rate Dependence on Input Parameters During the Beam–Target Plasma Interaction
        date: 2013-01-02
       words: 2532
      flesch: 69
     summary: [ i F(0)α · eB mα + ( c2sαk 2 + ω2pα ) k · eB k2 ]} − 2∏ α=1 ω2pα k2 [ Ω2αk 2 −ω2cα (eB · k) 2 ] = 0, (3) where Ωα = ω − k · u(0)α , (4) ωcα is the cyclotron frequency, F (0) α is the Lorentz magnetic force, eB is the unit vector in the direc- tion of magnetic field and csα is the sound velocity. The two-stream instability without magnetic field is described by the well-known Buneman dispersion relation.
    keywords: buneman; cos; cs1; cs2; dependence; dispersion; field; fig; figure; instability; jet; magnetic; non; parameters; pigr; plasma; polynomial; relation; results; simulations; sin; solution; stream; value; velocity; ωc1; ωc2; ωp2
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        item: #363 of 1243
          id: ap-1753
      author: Jakubova, Ivana; Senk, Josef; Laznickova, Ilona
       title: The Influence of Nitrogen in Ar+N2 Mixture on Parameters of High-Temperature Device with Electric Arc
        date: 2013-01-02
       words: 4377
      flesch: 60
     summary: Conclusions can be useful for the design of high temperature devices operating with argon/nitrogen mixture. Similarly, Figure 7 includes the data measured for 1.6 and 8 % for variant B. Com- paring the efficiency of the device in both configura- tions, clearly better efficiency at the output of the an- ode channel for configuration B compared to configu- ration A is deteriorated by higher power loss of reac- tor 1 in variant B.
    keywords: anode; anode channel; arc; argon; cathode; channel; concentration; configuration; current; device; efficiency; figure; gas; heater; higher; individual; input; length; loss; mass; mean; measured; mixture; nitrogen; output; plasma; power; power loss; properties; pure; reaction; reactor; segment; temperature; variant; velocity; voltage; working
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        item: #364 of 1243
          id: ap-1755
      author: Kortanek, Jiri; Kubes, Pavel
       title: Calculation of the Inductance of Plasma Column at PF-1000 Device with Assumed Current Distribution
        date: 2013-01-02
       words: 2080
      flesch: 68
     summary: Inductance of shots No. 9011 and No. 9013 using plasma border detection. These constants are set for the borders to follow the places where we see a sharp rise or drop in plasma density.
    keywords: border; column; current; density; diagnostics; distribution; figure; flows; fusion; implosion; inductance; kubes; magnetic; method; neutron; pf-1000; pinch; plasma; probe; shot; signal; time; value
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        item: #365 of 1243
          id: ap-1757
      author: Lee, Won-Ho; Lee, Jong-Chul
       title: Atmospheric Argon Free burning Arcs with a Simplified Unified Model Using CFD-Arc Modeling
        date: 2013-01-02
       words: 2431
      flesch: 60
     summary: The present results for 200 A, com- pared with those of [3, 11] given in brackets, were maximum arc temperature 24 300 K (23 700 K), max- imum axial velocity 500 m/s (500 m/s) and arc volt- age 10.5 V (12.9 V). Free burning arcs, where the work piece acts as an anode, are frequently used for a number of applications.
    keywords: acta; anode; arc; arcs; argon; atmospheric; axial; axis; burning; cathode; column; conditions; electrodes; energy; equations; farmer; flow; free; haddad; high; investigation; lte; model; phys; plasma; polytechnica; pressure; results; simplified; temperature; thermal; unified; velocity
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        item: #366 of 1243
          id: ap-1759
      author: Makhlaj, Vadym A.; Garkusha, Igor E.; Aksenov, Nikolay N.; Chuvilo, Alexander A.; Landman, Igor S.
       title: High-Speed Monitoring of Dust Particles in ITER ELMs Simulation Experiments with QSPA Kh-50
        date: 2013-01-02
       words: 2496
      flesch: 62
     summary: The main parameters of QSPA plasma streams were as follows: ion impact energy about 0.4 ÷ 0.6 keV, the maximum plasma pressure 3.2 bar, and the plasma stream diameter about 18 cm. It is interesting to compare the results of QSPA Kh-50 plasma exposures with performed ex- periments on erosion product monitoring in QSPA-T facility [3, 1].
    keywords: camera; cracking; different; droplets; dust; elm; energy; erosion; experiments; fig; fusion; heat; high; interaction; iter; layer; load; material; monitoring; m−2; particles; plasma; qspa; results; simulation; speed; start; surface; target; threshold; time; tungsten; velocity
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        item: #367 of 1243
          id: ap-176
      author: Vognar, M.; Šimáně, Č.; Chvátil, D.
       title: Faraday Cup for Electron Flux Measurements on the Microtron MT 25
        date: 2001-01-01
       words: 2371
      flesch: 57
     summary: Keywords: microtron, Faraday cup, electron beams, electron flux measurement Fig. 1: Assembly drawing of the Faraday cup in the vacuum housing: 1 – cavity, 2 – graphite cup, 3 – steel stopper, 4 – permanent magnets, 5 – ceramic insulators, 6 – dece- lerating electrode, 7 – insulators, 8 – cylindrical part of the vacuum housing, 9 – housing bottom, 10 – collar, 11 – rear flange, 12 – rubber gasket, 13 – Al foil entry win- dow, 14 – front flange, 15 – pumping sleeve, 16 – vacu- um 4-lead bushing, 17 – Al front shielding permanent magnets 4 are inserted in part 2. 3: Measuring line: 1 – electron beam exit window, 2 – Faraday cup entry window, 3 – first indexed turret with four diaphragm mounts, 4 – second indexed turret with eight diaphragm mounts, 5 – conical stainless steel collimator, 6 – square W-steel collimator, 7 – optical bench, 8 – table desk, 9 – diaphragm frame, 10 – common platform carriage, 11 – guide rail
    keywords: beam; cavity; cup; current; density; distance; electrode; electron; electron flux; energy; entry; exit; faraday; faraday cup; flux; housing; input; mean; measured; mev; microtron; range; resistor; scattering; steel; thick; vacuum; value; walls; window
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        item: #368 of 1243
          id: ap-1763
      author: Olszewski, Serge; Lisitchenko, Tamara; Yukhymenko, Vitalij
       title: Long-Lived Plasma Process, Created by Impulse Discharge in Micro-Disperse Droplet Environment
        date: 2013-01-02
       words: 3826
      flesch: 63
     summary: The duration current impulse of spark discharge was ≤ 10 µs. Fig. The emission spectrum of spark discharge is represented on plot a) and spec- trum of sliding discharge on b).
    keywords: active; area; axis; breakdown; calculated; charged; conditions; consistent; current; different; discharge; disperse; droplet; drops; electric; electrodes; emission; environment; experimental; field; fig; figure; fog; high; impulse; instability; liquid; long; metal; micro; model; particles; plasma; pls; process; processes; results; self; size; spark; spectra; surface; systems; time; value; video; voltage; volume; water; working
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        item: #369 of 1243
          id: ap-1765
      author: Petit, Jean P.; Dore, Jean C.
       title: Velikhov Electrothermal Instability Cancellation by a Modification of Electrical Conductivity Value in a Streamer by Magnetic Confinement
        date: 2013-01-02
       words: 2663
      flesch: 59
     summary: Theoretical analysis of shock wave anihilation with MHD force field. Proceedings III, part 14.E – MHD flow, pp.
    keywords: acta; action; cancellation; close; collision; conference; coulomb; critical; development; electrical; electrothermal; equilibrium; experiment; field; france; gas; gases; generation; hall; instability; international; ionization; j. p.; jean; laboratory; lambda; magnetic; mhd; non; p. petit; parameter; petit; plasma; power; regime; research; shock; supersonic; temperature; tube; value; velikhov; wave
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        item: #370 of 1243
          id: ap-1767
      author: Píchal, Jan; Klenko, Julia
       title: Positioning of the Precursor Gas Inlet in an Atmospheric Dielectric Barrier Reactor, and its Effect on the Quality of Deposited TiOx Thin Film Surface
        date: 2013-01-02
       words: 3177
      flesch: 60
     summary: We used the plasma enhanced chemical vapour deposition (PECVD) method applying atmospheric dielectric barrier discharge (ADBD) plasma for TiOx thin films deposition, employing titanium isopropoxide (TTIP) and oxygen as reactants, and argon as a working gas. The XPS peak positions were referenced at the aliphatic carbon component at 285.0 eV. Due to inadequate equipment we were unfortunately not able to clean the film profile by sput- tering and perform XPS profile tests, so our research had to focus on film surface tests only.
    keywords: adbd; afm; air; atmospheric; barrier; best; carbon; chemical; composition; deposited; deposition; dielectric; discharge; electrode; figure; film; flow; gas; inlets; method; mode; oxygen; plasma; precursor; pressure; quality; reactions; reactor; slm; species; spectrum; substrate; surface; tests; thin; tio2; tiox; titanium; ttip; xps
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        item: #371 of 1243
          id: ap-1769
      author: Šíla, Ondrej; Kubeš, Pavel; Kravárik, Josef; Rezác, Karel; Klír, Daniel; Cikhardt, Jakub
       title: Estimation of Amount of Scattered Neutrons at Devices PFZ and GIT-12 by MCNP Simulations
        date: 2013-01-02
       words: 2042
      flesch: 63
     summary: For estimating of neutron energy we use time-of- flight method. Because of the fact that neutrons from D−D fusion reaction have velocity approximately 0.72c, we use simple non-relativistic equation for esti- mating neutron energy En from its velocity vn,
    keywords: current; device; d−d; effect; energy; experimental; figure; fusion; git-12; input; line; mcnp; neutrons; pfz; pinch; place; plasma; probe; results; scattered; setup; simulation; source; spectrum; steel
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        item: #372 of 1243
          id: ap-1771
      author: Šmíd, Michal; Antonelli, Luca; Renner, Oldoich
       title: X-ray Spectroscopic Characterization of Shock-Ignition-Relevant plasmas
        date: 2013-01-02
       words: 2424
      flesch: 55
     summary: Keywords: hot electrons, shock ignition, laser-produced plasma, X-ray spectroscopy, Kα radiation. Found values of plasma temperature 690 ± 10 eV, electron density 3 × 1022 cm−3 and the effective energy of hot electrons 45 ± 20 keV demonstrate the potential of X-ray methods in the characterization of the shock ignition environmental conditions.
    keywords: acta; beam; bent; cm−2; conditions; copper; crystal; czech; data; density; effective; electrons; emitted; energy; experimental; figure; high; hot; hot electrons; ignition; imaging; intensity; laser; lines; measured; number; phys; plasma; plastic; prague; ray; relevant; shock; signal; spectra; target; temperature
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        item: #373 of 1243
          id: ap-1775
      author: Torrisi, Lorenzo; Cavallaro, Salvatore; Cutroneo, Mariapompea; Krasa, Josef
       title: Nuclear Fusion Effects Induced in Intense Laser-Generated Plasmas
        date: 2013-01-02
       words: 2855
      flesch: 56
     summary: Deuterium ions at kinetic energies above 4 MeV have been measured by using ion collectors and SiC detectors in time-of-flight configuration. Thus protons and deuterium ions emitted from primary and sec- ondary targets, can be detected and their kinetic energy measured.
    keywords: charge; cross; density; depth; detection; deutered; deuterium; deuterons; distance; d−d; energy; events; fast; figure; function; fusion; high; ions; kinetic; laser; mev; neutrons; nuclear; number; order; plasma; polyethylene; primary; protons; reaction; scintillator; secondary; section; sic; spectrum; target; thin; tof; total
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        item: #374 of 1243
          id: ap-1777
      author: Turčičová, Hana; Huynh, Jaroslav
       title: Stimulated Raman Backscattering in Plasma — a Promising Tool for the Generation of Ultra-High Power Laser Beams
        date: 2013-01-02
       words: 2798
      flesch: 66
     summary: Keywords: stimulated Raman scattering, laser plasma, high intensity lasers. In the last fifteen years again a new potentially revolutionary technique has emerged from theoretical studies of wave instabilities in laser plasma, which presents a possibility of the production of intense and ultrashort laser pulses even without the large compres- sors.
    keywords: amplification; backscattering; beam; channel; compression; czech; density; duration; energy; experiments; frequency; gas; high; intensity; laser; long; output; pals; phys; plasma; power; prague; pulse; pump; raman; regime; sapphire; scattering; seed; short; simulations; srbs; stimulated; technique; time; wave
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        item: #375 of 1243
          id: ap-178
      author: Šimáně, Č.; Vognar, M.; Chvátil, D.
       title: Some Aspects of Profiling Electron Fields for Irradiation by Scattering on Foils
        date: 2001-01-01
       words: 3504
      flesch: 70
     summary: � �� �B � ln . The electron flux F(�) inside a cone of angular aperture 2�, normalized to unity for � from 0 to �, can be written in the form � � � �F W� � � � � � � sin d0 (1) where W(�)d�� the probability of an electron being scattered under an angle � into an interval d�, is, according to the Moliere theory [2], given by an expression (with only the first term taken into account) � �W B B � � � � � � � � � � � d d 2 2 exp � � � � � � (2) The constant factor before the exponential on the right side is the normalization factor and at the same time the amplitude of the Gaussian distribution.
    keywords: air; angular; aperture; beam; cup; current; degrees; density; distance; distribution; electron; exit; experimental; faraday; fig; flux; foils; forward; gaussian; mev; peak; results; scattering; thickness; value; window
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        item: #376 of 1243
          id: ap-1781
      author: Velardi, Luciano; Side, Domenico Delle; Marco, Massimo De; Nassisi, Vincenzo
       title: Emittance Characterization of Ion Beams Provided by Laser Plasma
        date: 2013-01-02
       words: 2699
      flesch: 66
     summary: Laser ion sources offer the possibility to obtain ion beams useful for particle accelerators. mrad)−2. Keywords: LIS source, ion beam, emittance.
    keywords: acceleration; applied; area; beams; brightness; chamber; charge; cup; current; electric; electrode; emittance; energy; expansion; extraction; figure; gap; high; instrum; ion; ions; laser; lis; materials; methods; nassisi; output; plasma; radiochromic; target; values; voltage
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        item: #377 of 1243
          id: ap-1783
      author: Vojta, Vladimír
       title: In memory of Alois Apfelbeck: An Interconnection between Cayley-Eisenstein-Pólya and Landau Probability Distributions
        date: 2013-01-02
       words: 3590
      flesch: 81
     summary: 69 Acta Polytechnica 53(2):63–69, 2013 1 Introduction 2 Inversion of the moment generating function 2.1 Direct procedure 2.2 Mellin procedure 2.3 Stieltjes procedure 3 Integrals and integral transforms 4 Conclusion Acknowledgements References Function W0(s) s(1+W0(s)) is a Stieltjes function [4].
    keywords: cayley; cot; differential; distribution; eisenstein; equation; f(x; f0(x; f1(x; function; integral; landau; laplace; mellin; operator; p.d.f; probability; proof; pólya; theorem; transform; w0(s; w0(−u
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        item: #378 of 1243
          id: ap-1785
      author: Hubata-Vacek, Václav; Kukal, Jaromír; Rusina, Robert; Buncová, Marie
       title: Fractal Dimension Estimation in Diagnosing Alzheimer’s Disease
        date: 2013-01-02
       words: 1925
      flesch: 71
     summary: Dimension estimates via various entropy estimates. lim q→1 Hq = − ∑ j=1 pj ln pj ; • Collision entropy
    keywords: als; alzheimer; bayesian; brain; czech; dimension; disease; ed̂q; entropy; estimates; estimation; fractal; h0,n; h1,hb; h1,n; h1,s; h2,s; harris; n(a; rényi; scans; shannon
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        item: #379 of 1243
          id: ap-1789
      author: Kutilek, Patrik; Viteckova, Slavka; Svoboda, Zdenek
       title: Characterization of Human Gait using Fuzzy Logic
        date: 2013-01-02
       words: 3990
      flesch: 59
     summary: 4. Fuzzy rule based expert system We can use fuzzy sets to evaluate the angle-angle di- agrams (cyclograms). Fuzzy sets of variables and linguistic expressions based on the area and the inclination angle of the cyclogram.
    keywords: acta; analysis; angle; area; behavior; characteristics; cyclogram; data; diagram; expert; figure; fuzzy; fuzzy logic; gait; human; inclination; inclination angle; input; logic; lower; measured; method; model; moment; movement; output; polytechnica; practice; rules; second; sets; small; speed; study; surface; system; table; terrain; treadmill; type; use; variables; walking
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        item: #380 of 1243
          id: ap-1791
      author: Tylova, Lucie; Kukal, Jaromir; Vysata, Oldrich
       title: Predictive Models in Diagnosis of Alzheimer’s Disease from EEG
        date: 2013-01-02
       words: 2348
      flesch: 66
     summary: Model error The three AR models above are easily comparable, because they produce an overdetermined system of M = m−n linear equations for n unknown variables a1, . . Keywords: Alzheimer’s disease, EEG, linear predictive model, quasi-stationarity, robust statistics, multiple testing, FDR.
    keywords: accuracy; alzheimer; brain; channel; diagnosis; differences; disease; eeg; engineering; error; fluctuation; iqr; linear; mad1; mad2; mad3; measures; med; model; predictive; robust; sensitivity; signal; significant; specificity; std; symmetric; testing; time; value
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        item: #381 of 1243
          id: ap-1795
      author: Hladík, Jakub; Lórencz, Róbert; Šimeček, Ivan
       title: Clock Math — a System for Solving SLEs Exactly
        date: 2013-01-02
       words: 2987
      flesch: 61
     summary: Future Work As we now have a working system, we would like to proceed to: • add support for both single and double precision for matrix elimination, as the β vector module count and GPU performance may differ; • add support for larger matrices than 4096 × 4096 – optimize SMP shared memory usage; • add support for automatic kernel group size tuning for larger matrices, as the group size lowers the mem- ory access time on different GPUs/architectures; • examine the modulus operation performance across different GPU architectures and further opti- mize the SAXPY, respectively DAXPY functions (mod m); • utilize OpenMPI library to add cluster support; • adjust and run the solver on our university STAR cluster to test AMD’s OpenCL CPU implementa- tion. The goal of matrix scaling is to adjust all the floating-point numbers of the matrix to their corresponding integer versions.
    keywords: architecture; arithmetic; clock; computation; computer; cores; elimination; equations; error; gpgpu; gpu; integer; linear; lórencz; math; matrix; memory; modular; numerical; nvidia; opencl; optimizations; parallel; performance; point; polytechnica; precision; problems; processor; results; rounding; row; scaling; sensitive; single; size; sles; smp; solution; solver; speedup; system; vector
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        item: #382 of 1243
          id: ap-1797
      author: Cartarius, Holger; Dast, Dennis; Haag, Daniel; Wunner, Günter; Eichler, Rüdiger; Main, Jorg
       title: Stationary and Dynamical Solutions of the Gross-Pitaevskii Equation for a Bose-Einstein Condensate in a PT symmetric Double Well
        date: 2013-01-03
       words: 6500
      flesch: 64
     summary: This is always fulfilled for PT symmetric wave functions. Stationary states are determined and the propagation of wave function is investigated using the time-dependent Gross- Pitaevskii equation.
    keywords: amplitude; atoms; bose; broken; case; complex; condensate; dimensional; double; eigenstates; eigenvalue; einstein; energy; equation; evolution; exact; figure; functions; gain; gaussian; gross; ground; hamiltonian; hermitian; imaginary; independent; initial; lett; long; loss; model; nonlinear; nonlinearity; norm; numerical; parameters; phys; pitaevskii; pitaevskii equation; point; positive; potential; probability; pt symmetric; quantum; real; rev; solutions; square; state; stationary; symmetric; symmetry; system; temporal; time; true; values; variational; wave; wave functions
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        item: #383 of 1243
          id: ap-1799
      author: Dey, Sanjib; Fring, Andreas
       title: The Two-dimensional Harmonic Oscillator on a Noncommutative Space with Minimal Uncertainties
        date: 2013-01-03
       words: 1542
      flesch: 73
     summary: Keywords: noncommutative space, non-Hermitian operators, 2D-systems. [16] S. Dey and A. Fring, Squeezed coherent states for noncommutative spaces with minimal length uncertainity relations, Phys.
    keywords: algebra; dimensional; fring; hamiltonian; harmonic; hermitian; minimal; noncommutative; oscillator; phys; pys; quantum; relations; space; spectrum
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        item: #384 of 1243
          id: ap-180
      author: Kopáčková, M.
       title: Critical Length of a Column in View of Bifurcation Theory
        date: 2001-01-01
       words: 3410
      flesch: 65
     summary: 4: Three deflections of the column � � � � � �Lu s f s s� �, ,0 1 (15) exists and is of the form � � � � � � � � � � � �� � � �u s b f v u s v s u Cv s s � � �� � � � �0 0 0 00 (12) Let us denote by L(u) the linear operator as the closure (in H1(0, 1)) of the operator given by the values � � � � � �L u s u s s u s� �� � �0 for the functions satisfying boundary conditions (8) and � � � � � �� � � �� �F u t s u s u s u s, sin sin ,� ��0 � (13) where = � � �0.
    keywords: = �; column; critical; deflections; eigenvalue; equation; f s; fig; form; length; linear; n �; nonlinear; problem; rod; s s; s v; sin; solution; theory; u s; w s; � /2; � w
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        item: #385 of 1243
          id: ap-1801
      author: Exner, Pavel; Barseghyan, Diana
       title: Spectral Analysis of Schrödinger Operators with Unusual Semiclassical Behavior
        date: 2013-01-03
       words: 5301
      flesch: 73
     summary: Schrödinger operators in cusps with non-trivial geometry In the second part of the paper we shall discuss Schrödinger type operators HΩ = −∆ΩD −V (3.1) with a bounded measurable potential V ≥ 0 on L2(Ω), where −∆ΩD is the Dirichlet Laplacian on a region Ω ⊂ Rd. In this paper we discuss several examples of Schrödinger operators describing a particle confined to a region with thin cusp-shaped ‘channels’, given either by a potential or by a Dirichlet boundary; we focus on cases when the allowed phase space is infinite but the operator still has a discrete spectrum.
    keywords: acta; analysis; barseghyan; bounds; constant; corresponding; cusps; dirichlet; discrete; domain; eigenvalue; estimates; exner; following; function; h−0; inequality; infinite; j=1; lclσ,1; lieb; math; moments; negative; non; number; operator; p(x; phys; polytechnica; potential; region; schrödinger; section; spectral; spectrum; theorem; thirring; unbounded; upper; ∥∥1
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        item: #386 of 1243
          id: ap-1803
      author: Hammou, Amine B.
       title: Generalized Continuity Equation for Quasi-Hermitian Hamiltonians
        date: 2013-01-03
       words: 1605
      flesch: 69
     summary: Using a quasi-Hermitian toy model of discrete delta function potential, it was shown that the reflection and transmission coefficients computed using this current obey the unitarity relation. By an appropriate mod- ification of the inner product on the Hilbert space, quasi-Hermitian operators can be made Hermitian [8].
    keywords: 2ak; continuity; current; delta; function; generalized; hermitian; hilbert; metric; phys; potential; quasi; reflection; relation; sin; space; transmission; unitarity
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        item: #387 of 1243
          id: ap-1805
      author: Himmel, Martin
       title: On the Solvability of Some Partial Differential Inequality
        date: 2013-01-03
       words: 4833
      flesch: 67
     summary: Thus, it is possible to interpret integrating factors and Dulac functions as invariant functions to certain cofactors: an inte- grating factor is nothing but an invariant function having cofactor k = −div X (16) and a Dulac function is an invariant function with cofactor The multiplier B ∈ W 1,p(Ω,R) is called Dulac function of the planar dynamical system (1) in Ω ⊆ D if and only if there is a real-valued continuous function g > 0
    keywords: 16th; algebraic; case; closed; cofactor; criterion; curves; cycles; definition; degree; differential; div; domain; dulac; equation; equilibrium; existence; factor; field; function; hilbert; hyperbolic; integral; integrating; invariant; limit; linear; local; non; number; orbits; ordinary; partial; periodic; planar; polynomial; problem; proof; quadratic; qualitative; real; set; smooth; solution; system; theorem; theory; vector
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        item: #388 of 1243
          id: ap-1807
      author: Janda, Jirí
       title: Weakly Ordered A-Commutative Partial Groups of Linear Operators Densely Defined on Hilbert Space
        date: 2013-01-03
       words: 5360
      flesch: 90
     summary: An interval [−1, 1] with ⊕ defined for 0 ≤ x,y by • x⊕y = x + y iff x + y ≤ 1, • x⊕ (−y) = x−y, • (−x) ⊕ (−y) = −(x⊕y) iff (x⊕y) exists and relation ≤G defined by x ≤G y iff x ≤ y and y −x ≤ 1 for all x,y ∈ + z exists and (Riii) implies that y + z exists.
    keywords: algebra; case; commutative; d(a; definition; effect; exists; generalized; group; hilbert; iff; lemma; linear; operation; operators; order; partial; pos(g; positive; proof; relation; set; space; w.r.t; weakly; woa; wop; x−y
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        item: #389 of 1243
          id: ap-1809
      author: Kleefeld, Frieder
       title: Complex Covariance
        date: 2013-01-03
       words: 5777
      flesch: 68
     summary: Despite this enormous amount of activities to “make sense of non-Hermitian Hamiltonians” [21, 22] and the fact that we had managed [6] to construct even a Lorentz-boost for complex-mass fields required to formulate non-Hermitian spinors and Dirac-equations, there has remained — as to our understanding — one crucial point neglected and unclear which is in the spirit of the QHJT and which will be the focus of the presented results: How can the general concept of “covariance” having been formulated by Albert Ein- stein (1905) Our considerations will lead us not only to some unconventional derivation of Lorentz transformations for complex-valued velocities, but also to the non-Hermitian Klein-Gordon and Dirac equations, which are to lay the foundations of a non-Hermitian quantum theory.
    keywords: acta; arxiv; causal; classical; complex; coordinates; covariance; derivation; dirac; e.g.; einstein; energy; eqs; equations; following; frames; generalized; hep; hermitian; inertial; inverse; kleefeld; llfv; lorentz; momentum; non; particle; phase; phys; plane; point; principle; quantum; real; relativity; rev; schrödinger; space; spatial; theory; time; transformations; velocities; velocity; wave; γ γ; ∂2ψ
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        item: #390 of 1243
          id: ap-1811
      author: Leach, P. G. L.
       title: Emmy Noether and Linear Evolution Equations
        date: 2013-01-03
       words: 2939
      flesch: 61
     summary: [5] Gasizov R & Ibragimov NH (1998) Lie symmetry analysis of differential equations in finance Nonlinear Dynamics 17 387–407. These each have an equivalent in the Schrödinger Equation corresponding to the Lagrangian and by extension to linear evolution equations in general.
    keywords: algebra; black; boundary; case; classical; conditions; differential; emmy; equation; evolution; f(t; finance; financial; function; hamiltonian; heat; initial; journal; lagrangian; lie; log; mathematics; mechanics; merton; model; noether; point; pricing; scholes; schrödinger; schwartz; solution; symmetries; symmetry; theorem; time; u∂u
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        item: #391 of 1243
          id: ap-1813
      author: Mostafazadeh, Ali
       title: Spectral Singularities do not Correspond to Bound States in the Continuum
        date: 2013-01-03
       words: 781
      flesch: 66
     summary: Spectral singularities appear for generic complex scattering potentials, while scattering potentials that involve bound states in the continuum are ex- tremely rare. Keywords: spectral singularity, bound state in continuum, resonance.
    keywords: continuum; mostafazadeh; phys; potentials; rev; scattering; schrödinger; singularities; singularity; spectral; states
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        item: #392 of 1243
          id: ap-1815
      author: Paseka, Jan; Riečanová, Zdenka
       title: Inherited Properties of Effect Algebras Preserved by Isomorphisms
        date: 2013-01-03
       words: 5480
      flesch: 75
     summary: Keywords: effect algebras; operator effect algebras; isomorphisms; operator representations of effect algebras.. AMS Mathematics Subject Classification: 06C15, (03G12, 81P10). [18] Riečanová Z., Zajac M., Hilbert space effect-representations of effect algebras, Reports of Mathematical Physics, 70 (2012), 283–290. 313 http://dx.doi.org/10.1007/BF02283036 http://dx.doi.org/10.1088/1751-8113/42/18/185206 http://dx.doi.org/10.1088/1751-8113/42/18/185206 doi: 10.1007/s00500-010-0561-7.DOI: 10.1007/s00500-010-0561-7 doi: 10.1007/s10701-011-9573-0 Acta Polytechnica 53(3):308–313, 2013 1 Introduction 2 Basic definitions and some known facts 2.1 Effect algebras and generalized effect algebras 2.2 Topologies on ordered sets 2.3 Morphisms, embeddings and isomorphisms of effect algebras 3 Basic properties of isomorphisms of effect algebras and operator representations 4 Some properties of operator effect algebras that need not be preserved by effect algebraic isomorphisms Acknowledgements References
    keywords: additive; adjoint; algebras; closed; complex; d(a; e(h; effect; effect algebras; elements; generalized; hilbert; iff; isomorphisms; net; operator; order; positive; properties; self; set; space; state; theorem; unbounded; ϕ(a; ϕ(aα
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        item: #393 of 1243
          id: ap-1817
      author: Riečanová, Zdenka; Zajac, Michal
       title: Intervals in Generalized Effect Algebras and their Sub-generalized Effect Algebras
        date: 2013-01-03
       words: 2316
      flesch: 69
     summary: [10] Polakovič, M.: Generalized effect algebras of bounded positive operators defined on Hilbert spaces, Reports on Mathematical Physics, 68 (2011), 241–250. Subalgebras, intervals and central elements of generalized effect algebras.
    keywords: algebra; effect; effect algebra; generalized; generalized effect; hilbert; linear; operators; positive; q]e; riečanová; set; space; sub
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        item: #394 of 1243
          id: ap-1819
      author: Znojil, Miloslav
       title: Non-Hermitian Star-shaped Quantum Graphs
        date: 2013-01-03
       words: 3140
      flesch: 66
     summary: Summary and outlook The idea of the study of the non-Hermitian star- shaped quantum graphs relates, equally strongly, to the studies of its non-Hermitian predecessors which remain topologically trivial (cf. The concept of quantum graphs 2
    keywords: acta; concept; crypto; dimensional; discretization; dynamics; friendly; graphs; hamiltonian; hermitian; hermiticity; hilbert; idea; matrix; metric; models; non; nontrivial; particular; phys; point; polytechnica; problem; quantum; quantum graphs; real; secular; smearing; space; star; theory; use; vertices; wedges; znojil; ; 
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        item: #395 of 1243
          id: ap-182
      author: Fořt, I.; Medek, J.; Ambros, F.
       title: Erosion Wear of Axial Flow Impellersin a Solid-liquid Suspension
        date: 2001-01-01
       words: 3756
      flesch: 67
     summary: While the wear of the leading edge of the blade exhibits a monotonous dependence on the pitch angle, the sheet erosion exhibits the maximum rate within the interval of the pitch angles tested � � � 20°; 45°�. Pitched blade impellers with four adjustable inclined plane blades (see Fig. 2) made of rolled brass or construction steel were used for the erosion tests.
    keywords: angle; blade; brass; construction; dependence; duration; erosion; erosion process; fig; gypsum; hardness; impeller; impeller blade; parameter; particles; pitch; process; profile; rate; rolled; sand; silicious; steel; surface; suspension; thickness; vol; waste; wear; ° �
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        item: #396 of 1243
          id: ap-1821
      author: Balková, L'ubomíra; Hrušková, Aranka
       title: Continued Fractions of Square Roots of Natural Numbers
        date: 2013-01-04
       words: 4004
      flesch: 89
     summary: It is thus readily seen that if the number x is rational, then the algorithm eventually produces zeroes, i.e. there exists N ∈ N such that an = 0 for all n > N, thus x = a0 + 1 a1 + 1 a2 + 1 ... 3. Continued fractions of √ N Let us consider N ∈ N \ {0}.
    keywords: continued; form; fraction; irrational; length; numbers; n−1; observation; period; proof; quadratic; theorem
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        item: #397 of 1243
          id: ap-1823
      author: Beňo, Jaroslav; Hilar, Matouš
       title: Steel Fibre Reinforced Concrete for Tunnel Lining – Verification by Extensive Laboratory Testing and Numerical Modelling
        date: 2013-01-04
       words: 5513
      flesch: 64
     summary: Segment bending Segments were also tested under a load perpendicular to the longitudinal tunnel axis (Fig. 5b). Afterwards, SFRC segments were produced and then tested at the Klokner Institute of CTU.
    keywords: applied; bar; beams; behaviour; bending; better; compression; concrete; crack; czech; design; dosage; dramix; fibres; fig; figure; flexural; force; higher; key; laboratory; lining; load; loaded; lower; machine; material; maximum; metro; modelling; mpa; parameters; point; prague; precast; production; properties; reinforcement; results; samples; segmental; segments; sfrc; sfrc segments; shield; steel; strength; structures; tensile; testing; tests; thickness; tunnel; unloaded
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        item: #398 of 1243
          id: ap-1825
      author: Bodlák, Martin; Jarý, Vladimír; Konorov, Igor; Mann, Alexander; Nový, Josef; Paul, Severine; Virius, Miroslav
       title: Developing Control and Monitoring Software for the Data Acquisition System of the COMPASS Experiment at CERN
        date: 2013-01-04
       words: 3174
      flesch: 61
     summary: These modules receive the signals from the time and trigger system; when the trigger signal arrives, the readout is performed. System stability.
    keywords: acquisition; architecture; buffers; bytes; cern; commands; communication; compass; control; custom; daq; data; database; date; development; dim; event; experiment; figure; hardware; java; library; master; message; monitoring; new; nodes; number; package; performance; protocol; readout; requirements; results; server; slave; software; system; time; transfer; user; version
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        item: #399 of 1243
          id: ap-1827
      author: Holub, Štepán
       title: On an Algorithm for Multiperiodic Words
        date: 2013-01-04
       words: 2120
      flesch: 81
     summary: =   FW(Q, k − m)[i mod m] if (i mod m) < , (i` mod m), i` = j proves [i]Q,k =
    keywords: algorithm; alphabet; approach; classes; construction; equivalence; example; fw(p; is+1; lemma; length; mod; periods; set; trivial; wilf; word
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        item: #400 of 1243
          id: ap-184
      author: Šimáně, Č.; Vognar, M.; Kříž, J.; Němec, V.
       title: A Small Transfer and Distribution System for Liquid Nitrogen
        date: 2001-01-01
       words: 1336
      flesch: 63
     summary: 3 Three-way LN valve The distribution of LN to three Dewars is enabled by a three-way solenoid valve (Fig. 3) consisting of individual ball valves with a common body. Keywords: liquid nitrogen, transfer system, solenoid pump, solenoid valve, automatic level control.
    keywords: ball; coil; core; current; delivery; dewar; distribution; fig; liquid; nitrogen; period; plunger; position; pump; solenoid; spring; system; type; valve; way
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        item: #401 of 1243
          id: ap-1841
      author: Šulc, Radek; Svačina, Ondřej
       title: The Effect of Kaolin Concentration on Flock Growth Kinetics in an Agitated Tank
        date: 2013-01-04
       words: 3412
      flesch: 56
     summary: (b) Relative error of equivalent flock size df,eq: average/maximum absolute value. Keywords: flocculation, flock growth, flock size, mixing, Rushton turbine, kaolin slurry, fractal geometry, image analysis.
    keywords: agitated; analysis; a∗f; camera; ck0; concentration; correlation; data; df2; dimension; dimensionless; dosage; effect; experimental; flocculant; flocculation; flock; fractal; generalized; growth; image; impeller; initial; kaolin; kinetics; max; mixing; model; parameters; particle; process; shape; size; solid; tank; time; value; vessel; wastewater
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        item: #402 of 1243
          id: ap-1843
      author: Mihaliková, Mária; Német, Miroslav; Vojtko, Marek
       title: IMPACT OF STRAIN RATE ON MICROALLOYED STEEL SHEET BREAKING
        date: 2014-08-31
       words: 1672
      flesch: 62
     summary: Keywords: strain rate, microalloyed steel, fracture surface. The effect of strain rate on the mechanical properties of automotive steel sheets, Acta Polytechnica, 53 (4), 2013, p. 384–387.
    keywords: acta; deformation; dimples; ductile; fig; figure; fracture; hc420la; impact; increases; loading; material; properties; rate; ratio; sheet; speed; steel; strain; strain rate; strength; surface; tensile
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        item: #403 of 1243
          id: ap-1847
      author: Bodner, Mark; Chadzitaskos, Goce; Patera, Jiří; Tereszkiewitz, Agnieszka
       title: THE SHMUSHKEVICH METHOD FOR HIGHER SYMMETRY GROUPS OF INTERACTING PARTICLES
        date: 2013-10-31
       words: 2342
      flesch: 67
     summary: Keywords: isospin, particle collisions, Lie group representation. [7] R. V. Moody, J. Patera, General charge conjugation operators in simple Lie groups, J. Math.
    keywords: channels; decomposition; dimensions; e(8; example; group; irreducible; lie; line; method; multiplicities; orbits; patera; probabilities; probability; product; representations; shmushkevich; simple; states; symmetry; weight; weyl
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        item: #404 of 1243
          id: ap-1849
      author: Burdík, Čestmír; Navrátil, Ondřej
       title: EXTREMAL VECTORS FOR VERMA TYPE REPRESENTATION OF B2
        date: 2013-10-21
       words: 3922
      flesch: 88
     summary: But for 2λ1 + λ2 + 3 = 0 ( 12 )n × (2z1z2 −z3)2n(4z1z4 + z23 ) λ1+ 12 λ2−n+ 3 2 , and for 2λ1 + λ2 + 3 odd, we have the solution f2 = λ1+ 12 λ2+1∑ n=0 ( 12 − 1 2λ2)n(−λ1 − 1 2λ2 − 1)n n!
    keywords: algebra; case; degree; differential; equations; extremal; f(z1,z2,z3,z4; function; g(t; lie; polynomial; representation; solution; system; variable; vectors; verma; z23
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        item: #405 of 1243
          id: ap-1851
      author: Exner, Pavel; Lipovský, Jiří
       title: RESONANCES ON HEDGEHOG MANIFOLDS
        date: 2013-10-21
       words: 8845
      flesch: 70
     summary: Resonance asymptotics The aim of this section is to say something about the asymptotic behaviour of the resolvent poles with re- spect to an increasing family of regions which cover in the limit the whole complex plane. The two prominent instances are resolvent resonances identi- fied with poles of the analytically continued resolvent of the Hamiltonian and scattering resonances where we look instead into the analytical structure of the on-shell scattering operator.
    keywords: acta; aharonov; asymptotics; axis; behaviour; bohm; boundary; case; compact; complex; condition; corresponding; coupling; disc; eigenvalues; energy; equation; example; exner; expression; extensions; f(x; field; figure; finite; function; graphs; green; halflines; hamiltonian; hedgehog; junctions; leads; lemma; lim; lipovský; magnetic; manifold; math; matrix; momentum; non; number; operator; particular; phase; phys; physics; plane; point; pole; polytechnica; proof; quantum; r(x; real; resolvent; resonances; scattering; second; single; situation; system; term; theory; true; unitary; ũ(k; vol; wave; weyl; γ(α
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        item: #406 of 1243
          id: ap-1852
      author: Gáliková, Veronika; Prešnajder, Peter
       title: COULOMB SCATTERING IN NON-COMMUTATIVE QUANTUM MECHANICS
        date: 2013-10-24
       words: 4419
      flesch: 76
     summary: In this paper we present an exact calculation of the NC Coulomb scattering matrix Sλj (E) in the j-th partial wave. As the model is exactly solvable, we were able to find an exact formula for the NC Coulomb scattering matrix Sλj (E) in j-th partial wave.
    keywords: analog; a†α; commutative; coulomb; cut; ecrit; energies; energy; equation; exact; function; iλe; limit; matrix; mechanics; non; operator; phys; poles; potential; prešnajder; problem; quantum; radial; rej; relations; scattering; schrödinger; solution; space; standard; wave; γ(j
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        item: #407 of 1243
          id: ap-1855
      author: Hlavatý, Ladislav; Navrátil, Josef; Šnobl, Libor
       title: ON RENORMALIZATION OF POISSON–LIE T-PLURAL SIGMA MODELS
        date: 2013-10-24
       words: 3444
      flesch: 63
     summary: The role of ambiguities in renormalization group equations of Poisson–Lie sigma models with truncated matrices of parameters is investigated. Keywords: sigma models, string duality, renormalization group.
    keywords: algebra; case; choice; diagonal; dimensional; double; drinfel’d; duality; equations; flows; form; group; invariant; lie; lie t; loop; manin; matrix; models; phys; plurality; poisson; proportional; renormalization; renormalization group; sigma; structure; triples
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        item: #408 of 1243
          id: ap-1858
      author: Chadzitaskos, Goce; Tolar, Jiří
       title: PROPOSAL OF NEW OPTICAL ELEMENTS
        date: 2013-10-24
       words: 3255
      flesch: 65
     summary: the cylinder is assembled from single crystal strips made from various materials and cut along different planes, so that the mutual distances between the atomic planes at one end of each strip fulfill Bragg’s condition; (2.) Bent single crystal strips are fixed on the sides by brackets 3.
    keywords: atomic; axis; bragg; case; chadzitaskos; channels; cross; crystal; diffraction; distance; element; force; interference; light; microscopy; mutual; optical; parabolic; parallel; planes; ray; section; single; single crystal; slits; strip; system; telescope; wavelength
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        item: #409 of 1243
          id: ap-186
      author: El-Hady, H. M. Abd; Grünwald, A.; Vlčková, K.; Zeithammerová, J.
       title: Lewatit S100 in Drinking Water Treatment for Ammonia Removal
        date: 2001-01-01
       words: 1942
      flesch: 59
     summary: Keywords: Lewatit S100, ion exchange, ammonia removal, drinking water. The objec- tive of our work is to treat drinking water spiked with NH4 + (10±0.5, 5±0.5 and 2±0.5) mg l �1, using Lewatit S100.
    keywords: ammonia; ammonium; breakthrough; capacity; column; concentration; drinking; exchange; fig; form; ion; lewatit; mg l; nacl; nh4; regeneration; removal; results; s100; vol; water
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        item: #410 of 1243
          id: ap-1860
      author: Masáková, Zuzana; Pelantová, Edita
       title: ITINERARIES INDUCED BY EXCHANGE OF TWO INTERVALS
        date: 2013-10-24
       words: 4749
      flesch: 82
     summary: This notion occurs in various con- texts such as return words, Abelian return words, or substitution invariance of the corresponding codings, i.e., Sturmian words. A characterization of Sturmian words by return words.
    keywords: amicable; exchange; infinite; interval; irrational; iti; itineraries; itinerary; length; map; number; point; proof; proposition; r(x; r1r2; return; set; sturmian; theorem; time; transformation; words
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        item: #411 of 1243
          id: ap-1863
      author: Pošta, Severin; Havlíček, Miloslav
       title: NOTE ON VERMA BASES FOR REPRESENTATIONS OF SIMPLE LIE ALGEBRAS
        date: 2013-10-29
       words: 4695
      flesch: 81
     summary: 4. Conclusions Problems of unified construction of Verma bases for other series of simple Lie algebras (namely orthogonal and symplectic) and of an effective determination of matrix elements in these cases are still open. Verma bases for representations of classical simple Lie algebras.
    keywords: acta; algebras; amer; bases; canonical; classical; construction; corresponding; crystal; dimensional; elements; finite; fi−1; form; groups; inequalities; irreducible; i−1; i−1f; knn; lemma; lie; lie algebras; linear; m+1; math; mathematics; matrix; modules; monomials; m−k; n f; n+1; note; operators; phys; polytechnica; proof; quantum; representations; sci; set; simple; soc; special; theorem; theory; u(a−n; use; vectors; verma; vol
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        item: #412 of 1243
          id: ap-1865
      author: Riečanová, Zdenka; Janda, Jiří
       title: MAXIMAL SUBSETS OF PAIRWISE SUMMABLE ELEMENTS IN GENERALIZED EFFECT ALGEBRAS
        date: 2013-10-24
       words: 4443
      flesch: 71
     summary: Further, let us investigate inter- vals in pairwise summable generalized effect algebras. Phys. 68, (2011), 261–270. 461 http://dx.doi.org/10.1007/s00500-013-1083-x Acta Polytechnica 53(5):457–461, 2013 1 Introduction and some basic definitions 2 Pairwise summable generalized effect algebras 3 Intervals in pairwise summable generalized effect algebras 4 Blocks of pairwise summable elements in generalized effect algebras Acknowledgements References
    keywords: algebra; b ∈; blocks; e;⊕; effect; effect algebra; elements; example; following; g;⊕; generalized; generalized effect; hilbert; intervals; lattice; maximal; operators; pairwise; partial; q]g; riečanová; set; space; sub; subset; summability; summable; theorem
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        item: #413 of 1243
          id: ap-1866
      author: Znojil, Miloslav
       title: NEW CONCEPT OF SOLVABILITY IN QUANTUM MECHANICS
        date: 2013-10-24
       words: 7942
      flesch: 64
     summary: Non-Hermitian quantum models, indecomposable representations and coherent states quantization. Non-Hermitian quantum graphs 8.1.
    keywords: acta; available; boundary; certain; choice; complex; concept; condition; correct; coupling; crypto; current; degenerate; discrete; domain; eigenvalues; elementary; eligible; energies; environment; equation; evolution; fig; figure; form; friendly; general; generic; graphs; h(f; h(s; hamiltonian; hermitian; hermiticity; hilbert; hilbert space; inner; math; mathematical; matrix; mechanics; metric; model; new; non; numerical; observability; observable; operator; paper; parameters; parametric; pattern; phys; physical; physics; point; polytechnica; positive; present; product; quantum; real; reality; ref; review; second; sense; set; simplicity; single; solvability; solvable; space; special; spectrum; stability; suitable; symmetric; system; theory; time; toy; transition; upper; znojil
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        item: #414 of 1243
          id: ap-1870
      author: Levi, Decio; Winternitz, Pavel
       title: LIE GROUPS AND NUMERICAL SOLUTIONS OF DIFFERENTIAL EQUATIONS: INVARIANT DISCRETIZATION VERSUS DIFFERENTIAL APPROXIMATION
        date: 2013-10-29
       words: 4340
      flesch: 66
     summary: As far as applications to the numerical solu- tions of differential equations are concerned, the idea, originally due to Dorodnitsyn [12, 13], is to start from the differential equation, its symmetry group G and the Lie algebra L of G, realized by vector fields. [24] rather than to “jet space” as for differential equations [25].
    keywords: approximation; continuous; difference; differential; differential approximation; differential equations; dimensional; discrete; discretization; equations; fields; gl(2,r; group; hn+1; invariant; lattice; levi; lie; math; method; numerical; ode; odes; order; ordinary; phys; point; prolongements; schemes; sci; second; sim(2; sl(2,r; solutions; symmetries; symmetry; terms; variables; vector; winternitz
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        item: #415 of 1243
          id: ap-1872
      author: Smirnov, Yuri F.; Turbiner, Alexander
       title: gln+1 ALGEBRA OF MATRIX DIFFERENTIAL OPERATORS AND MATRIX QUASI-EXACTLY-SOLVABLE PROBLEMS
        date: 2013-10-29
       words: 5781
      flesch: 73
     summary: Reps in 2 × 2 matrices Take gl2 in two-dimensional reps by 2 × 2 matrices, M11 = ( 1 0 0 0 ) , M22 = ( 0 0 0 1 ) , M12 = ( 0 1 0 0 ) , M21 = ( 0 0 1 0 ) , Then the generators (11) of gl3 are: T −1 = ( ∂1 0 0 ∂1 ) , T −2 = ( ∂2 0 0 ∂2 ) , E11 = ( x1∂1+1 0 0 The Casimir operators are: C1 = k, C2 = k(k + 2).
    keywords: algebra; algebraic; body; calogero; cartan; case; casimir; decomposition; differential; dimensional; e22; finite; form; generators; gl2; gl3; gln+1; hexagon; integer; length; lie; m11; m22; matrices; matrix; mij; mixed; model; negative; newton; non; operators; order; points; polynomials; property; realization; relations; representation; reps; solvable; space; sutherland; turbiner; vol; weyl
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        item: #416 of 1243
          id: ap-1874
      author: Uhlmann, Armin
       title: THE NUMBER OF ORTHOGONAL CONJUGATIONS
        date: 2013-10-29
       words: 2181
      flesch: 70
     summary: An anti-linear operator ϑ is said to be Hermitian or self-adjoint if ϑ† = ϑ. ϑ is said to be skew Hermitian or skew self-adjoint if ϑ† = −ϑ. The linear space of all Hermitian (skew Hermitian) anti-linear operators are denoted by B(H)+anti respectively B(H) − anti. Rank-one linear operators are as usually written( |φ′〉〈φ′′| ) Later on, F. Herbut and M. Vujičić were able to clarify the structure of anti-linear normal oper- ators, [4], by proving that such a decomposition also exists for anti-linear normal operators.
    keywords: adjoint; anti; cambridge; canonical; case; conjugations; dimensional; dimh; equality; form; hermitian; hilbert; linear; linearity; number; operator; orthogonal; product; quantum; set; skew; space; unitary; university; wigner
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        item: #417 of 1243
          id: ap-1876
      author: Exner, Pavel
       title: FOREWORD: THREE QUARTERS A CENTURY
        date: 2013-10-29
       words: 615
      flesch: 53
     summary: Since 1973, he has spent several years at the Laboratory of Theoretical Physics, JINR, in Dubna, where he also wrote and defended his higher doctoral thesis on Canonical Realizations, a certain algebraic representation theory of Lie algebras. In cases like the jubilee that this Festschrift celebrates, there is indeed a lot to think about, because the life of Professor Miloslav Havlíček has been anything but boring.
    keywords: acta; algebraic; algebras; czech; lie; life; miloslav; physics; polytechnica; prague; professor; years
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        item: #418 of 1243
          id: ap-1878
      author: Giovannelli, Franco
       title: WHAT IS NEW IN ASTROPARTICLE PHYSICS
        date: 2013-12-18
       words: 12427
      flesch: 64
     summary: J. C – Particles and Fields 15 (Ns 1–4), 150 [72] Genzel, R. et al.: 2003a, ApJ 594, 812 [73] Genzel, R. et al.: 2003b, Nature 425, 934 [74] Ghez, A.M. et al.: 2005, ApJ 620, 744 [75] Ghosh, S.K.: 2009, in Frontier Objects in Astrophysics and Particle Physics, F. Giovannelli & G. Mannocchi, (eds.), SIF, Ed. Ltd., 99–135 [9] Aharonian, F.A.: 2007, Sci. 315, 70 [10] Albert, J. et al. (MAGIC Collaboration): 2008, Sci. 320, 1752 [11] Alcock, C. et al.: 2000, ApJ 542, 281 [12] von Ballmoos, P., Takahashi, T., Boggs, S.E.: 2010, Nucl.
    keywords: a&a; abdo; acceleration; acta; apj; astronomy; astroparticle; astrophysics; background; bang; behaviour; big; binaries; binary; black; bologna; close; compact; compositori; cosmic; crs; dark; data; different; diffuse; discovery; distribution; dust; e.g.; ebl; eds; emission; energies; energy; energy cosmic; et al; evolution; experiments; extragalactic; fermi; fields; flux; formation; franco; frontier; galactic; galaxies; galaxy; gamma; gev; giovannelli; graziati; grb; grbs; higgs; high; high energy; history; important; italy; jets; large; lat; light; magnetic; mannocchi; mass; massive; matter; measurements; mem; model; multifrequency; nature; near; neutrinos; neutron; new; objects; observations; observed; open; optical; orbital; origin; papers; particle; physics; polytechnica; possible; problems; processes; progenitors; pulsars; quark; radiation; radio; range; ray; rays; recent; redshift; references; reionization; results; rev; review; sabau; sait; sci; sif; sne; sources; space; spectra; spectrum; standard; stars; state; study; system; talk; time; understanding; universe; upper; vhe; years
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        item: #419 of 1243
          id: ap-188
      author: Drchalová, J.; Poděbradská, J.; Maděra, J.; Černý, R.
       title: Evaluation of Water Resistance and Diffusion Properties of Paint Materials
        date: 2001-01-01
       words: 2327
      flesch: 55
     summary: Integral capillarity of paint-glass concrete systems for t � [0, 180 min], a detail 4 Measuring the effective diffusion coefficient of water vapor When evaluating water vapor transport properties, we preferred diffusion coefficient D defined as j D� � grad c� , (3) rather than diffusion permeability �, which is defined as follows: j pv� ��grad . The diffusion coefficient at temperature T can be cal- culated using the following formula: D m Rd S M T C B A T � � �� � � � w � 1 10 , (9) where d is the thickness of the board-type specimen, M is the molar mass of water vapor, R is the universal gas constant, A, B, C are the constants in the empirical formula describing the dependence of the saturated water vapor pressure on temperature pv, s , p Tv s C BAT, � � � �10 , (10) A = 2900 K, B = 24.738, C = –4.65.
    keywords: acrylate; basic; capillarity; coefficient; concrete; czech; diffusion; effective; fig; glass; integral; karlocolor; mass; materials; measuring; min; paint; properties; repellent; specimen; substrate; systems; time; value; vapor; vol; water
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        item: #420 of 1243
          id: ap-1880
      author: Jones, Lawrence W.
       title: THE FIRST CENTURY OF COSMIC RAYS, AN HISTORICAL OVERVIEW
        date: 2013-12-18
       words: 2571
      flesch: 50
     summary: 53 supplement/2013 The First Century of Cosmic Rays, an Historical Overview hydrogen target served as a veto to restrict triggered events to unaccompanied incident cosmic ray particles (virtually all protons). Lawrence Jones — This was indeed a relevant set of measurements, which also hinted at an extra-terrestrial source of cosmic rays. 499 Acta Polytechnica 53(Supplement):497–499, 2013 1 The Hess Discovery 2 Early Discoveries 3 The accelerator–cosmic ray interaction 4 The Echo Lake and Mount Evans research program 5 Recent cosmic ray research References
    keywords: accelerator; acta; air; balloon; brookhaven; century; cern; chamber; cloud; cosmic; cosmic ray; counters; course; data; detector; discoveries; discovery; early; echo; energy; evans; flights; gev; hess; interactions; ionization; laboratory; lake; measurements; nuclear; particle; physics; polytechnica; proton; ray; rays; recent; research; results; rossi; spark; studies; synchrotron; target; years
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        item: #421 of 1243
          id: ap-1881
      author: Shaviv, Giora
       title: THE DISCOVERY OF THE CHANDRASEKHAR MASS AND THE CHANDRASEKHAR-EDDINGTON CONTROVERSY
        date: 2013-12-18
       words: 5396
      flesch: 64
     summary: In the paper Eddington set out to look for flaws in the derivation of the result P ∼ ρ4/3 for relativistic electrons. References [1] For detailed reference see: Giora Shaviv, The Life of Stars, Springer & Magnes Pub., 2009 505 Acta Polytechnica 53(Supplement):500–505, 2013 1 Introduction 2 Enrico Fermi & Paul Dirac 3 Eddington's white dwarf paradox 4 Cracking the paradox: Fowler 5 Pokrowski – the idea of a limiting mass 6 Anderson expands Pokrowski's idea but changes the reasons 7 Stoner: relativistic degeneracy leads to a limiting mass 8 Anderson again 9 Stoner responds 10 Chandrasekhar 11 The personal side References
    keywords: anderson; atom; attack; bohr; chandrasekhar; cm3; controversy; density; dirac; discovery; dwarfs; eddington; electrons; energy; equation; fermi; fowler; gas; general; gravitational; high; idea; later; limiting; mass; matter; milne; new; number; paper; paradox; particles; pauli; pokrowski; principle; quantum; relativistic; relativity; result; special; star; state; statistics; stellar; stoner; temperature; theory; time; white; words; ρmax
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        item: #422 of 1243
          id: ap-1884
      author: Strauss, Thomas
       title: OPERA HIGHLIGHTS
        date: 2013-12-18
       words: 3531
      flesch: 61
     summary: OPERA collaboration thanks CERN, INFN and LNGS for their support and work. 517 Acta Polytechnica 53(Supplement):512–517, 2013 1 Introduction 2 DAQ and analysis 2.1 Tau detection 2.2 Physics run performance and data analysis status 2.3 Charm decay topologies in neutrino interactions 3 nu-velocity measurement 4 Conclusions Acknowledgements References
    keywords: analysis; background; beam; brick; cern; charm; cngs; collaboration; conference; data; decay; detection; detector; ecc; efficiency; electronic; emulsion; events; experiment; figure; films; interaction; lngs; long; measured; muon; neutrino; number; opera; opera experiment; oscillation; physics; primary; reconstructed; results; search; shows; target; time; total; tracks; velocity; vertex
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        item: #423 of 1243
          id: ap-1887
      author: Straessner, Arno
       title: HIGHLIGHTS FROM THE LHC
        date: 2013-12-18
       words: 4602
      flesch: 69
     summary: Keywords: LHC, ATLAS, CMS, Standard Model measurements, SM Higgs boson, MSSM Higgs boson, supersymmetry, top quark, exotic particle searches. Its excitations can be measured as a scalar Higgs boson.
    keywords: 0.00±; atlas; atlas collaboration; background; boson; cms; cms collaboration; collaboration; cross; data; decay; detectors; energy; event; excess; exp; fig; figure; final; gauge; gev; hadronic; hep; higgs; jet; jets; leptons; lett; lhc; mass; measurements; model; mssm; new; particles; pas; phys; physics; predictions; production; quark; results; rev; scale; searches; section; signal; standard; states; supersymmetric; susy; tev; theo; transverse
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        item: #424 of 1243
          id: ap-1888
      author: Bellotti, E; Broggini, C.; Di Carlo, G.; Laubenstein, M.; Menegazzo, R.
       title: STUDY OF THE TIME DEPENDENCE OF RADIOACTIVITY
        date: 2013-12-18
       words: 2544
      flesch: 66
     summary: Time modulations We searched for time variations with periods from 6 hours to 400 days. In total about 5100 energy spectra, one hour measuring time each, were collected and used to search for time variations of the decay constant with periods from a few hours to 1 year.
    keywords: 137cs; activity; amplitude; background; carlo; constant; data; days; decay; dependence; detector; energy; experiment; exponential; half; hours; kev; laboratory; larger; life; mca; measured; period; rate; set; source; spectrum; temperature; time; underground; value; variations; year
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        item: #425 of 1243
          id: ap-1891
      author: Auriemma, Giulio
       title: CP VIOLATIONS (AND MORE) AFTER THE FIRST TWO YEARS OF LHCB
        date: 2013-12-18
       words: 4633
      flesch: 74
     summary: References [1] G. Altarelli, in Encyclopedia of Mathematical Physics, J.-P. Francoise et al. eds. [10] E. Komatsu et al., Astrophys.
    keywords: aaij; asymmetry; b0s; baryon; bosons; branching; cmssm; compatible; cpv; dark; data; decay; direct; energy; et al; field; figure; fit; gev; hep; higgs; lhcb; limits; mass; matter; measurements; mechanism; minimal; mixing; new; number; order; particle; phase; phys; phys.rev; phys.rev.lett; physics; possible; present; quarks; rare; ratio; ref; sakharov; search; susy; tev; tew; theory; time; transition; universe; violations; years; µ+µ−
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        item: #426 of 1243
          id: ap-1892
      author: Gustavino, Carlo
       title: THE 2H(α, γ)6LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS
        date: 2013-12-18
       words: 2112
      flesch: 66
     summary: As the 2H(α, γ)6Li cross section drops steeply at low energy, it has never before been studied directly at Big Bang energies. For the first time the reaction has been studied directly at Big Bang energies at the LUNA accelerator.
    keywords: 2h(2h; 6li; 7li; abundance; background; bang; bbn; beam; big; cross; detector; energies; energy; excess; experimental; figure; kev; line; luna; measurement; nuclear; nucleosynthesis; phys; reaction; roi; section; standard; stars; γ)6li
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        item: #427 of 1243
          id: ap-1897
      author: Morselli, Aldo
       title: SEARCH FOR DARK MATTER WITH GAMMA-RAYS: A REVIEW
        date: 2013-12-18
       words: 3421
      flesch: 67
     summary: [27] M. A. DuVernois et al., [HEAT Coll.], ApJ 559, 296 (2001) [arXiv:1201.2691] [17] M. Ackermann et al.
    keywords: abdo; ackermann; acta; analysis; annihilation; catalog; center; coll; cosmic; cross; dark; data; diffuse; electrons; emission; energy; et al; fermi; fermi coll; figure; flux; galactic; galaxies; gamma; gev; high; instrument; lat; limits; matter; mev; models; months; morselli; new; pamela; phys; range; ray; rays; region; rev; search; searches; sky; sources; space; spectrum; upper; wimp; years
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        item: #428 of 1243
          id: ap-1899
      author: Bisnovatyi-Kogan, Gennady S.; Chernin, Artur; Merafina, Marco
       title: DARK ENERGY AND KEY PHYSICAL PARAMETERS OF CLUSTERS OF GALAXIES
        date: 2013-12-18
       words: 3209
      flesch: 67
     summary: Keywords: dark energy, equilibrium models, galaxy clusters. It is shown, that dark energy reduces the dynamic stability of the configuration.
    keywords: 1/3; a.d; bisnovatyi; chernin; cluster; configuration; constant; cosmological; dark; density; energy; equation; equilibrium; galaxies; gravity; kogan; local; mass; matter; merafina; radius; stability; system; value; velocity; virgo; βin
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        item: #429 of 1243
          id: ap-190
      author: Dobrovská, D.
       title: Management of People by Managers with a Technical Background - Research Results
        date: 2001-01-01
       words: 2822
      flesch: 39
     summary: Benchmarking studies show that personnel managers of Czech companies, when compared with those in other European countries, are still obliged to spend a part of their working time on ineffective administra- tive procedures, dealing with problems of current concern of their company rather than addressing conceptual issues re- lated to the company’s future strategy (according to a report by Price Waterhouse – Coopers, 1999). The sources seen as most important (in order of frequency of use) are the internet, information from employees, employee sugges- tions, minutes taken at company management meetings, public company media and company documents.
    keywords: activities; area; assessment; average; companies; company; czech; employees; financial; information; items; management; managers; methods; motivation; operating; personal; personnel; personnel management; policy; professional; questionnaire; research; respondents; results; selection; skills; sources; staff; strategy; studies; study; technical; training; work
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        item: #430 of 1243
          id: ap-1900
      author: Persiani, Rino
       title: RESULTS FROM THE XENON100 EXPERIMENT
        date: 2013-12-18
       words: 3600
      flesch: 58
     summary: Detector backgrounds The background in XENON100 comes mainly from external sources and from the materials used for the construction of the detector itself. The electronic recoil band in log10(S2/S1) vs. en- ergy space defines the region of background events from β-
    keywords: analysis; aprile; background; band; calibration; collaboration; dark; data; days; detector; electron; energy; events; experiment; fiducial; gas; kev; level; light; liquid; live; low; lxe; mass; materials; matter; measured; neutron; nuclear; order; phase; phys; pmts; radioactive; recoil; region; results; run; scintillation; search; selection; sensitivity; shield; sources; target; tpc; wimp; xenon100
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        item: #431 of 1243
          id: ap-1903
      author: Colafrancesco, Sergio
       title: THE SZ EFFECT IN THE PLANCK ERA: ASTROPHYSICAL AND COSMOLOGICAL IMPACT
        date: 2013-12-18
       words: 9401
      flesch: 55
     summary: Planck detected SZE clusters are followed-up with a multi-frequency observation program in the X-rays (XMM-Newton), SZE (AMI), optical (ENO, ESO, RTT, NOT, NOAO, among others) to obtain confirmation, redshift estima- tion and estimates of the global physical parameters. Future SZE cluster surveys have an en- hanced sensitivity to constrain primordial magnetic fields because of the z-independence of the SZE and of the smaller biases in the cluster mass reconstruc- tion.
    keywords: 2010; a&a; acta; additional; analysis; apj; astrophysical; atmospheres; bullet; cavities; cavity; cluster; cmb; colafrancesco; combination; constraints; cosmic; cosmological; dark; density; different; distribution; e.g.; effect; electron; emission; energy; evolution; expected; fact; field; fig; figure; frequency; function; galaxies; galaxy; galaxy clusters; ghz; halo; high; hot; icm; ics; information; intensity; kev; ksze; large; like; line; lobes; low; magnetic; mass; massive; matter; mnras; nature; non; nonthermal; number; observations; overall; planck; plasma; polarization; polytechnica; possible; powerful; presence; pressure; probe; properties; radiation; radio; range; ray; redshift; relativistic; scale; scattering; sensitivity; set; signal; sources; spatial; spectral; spectrum; strong; structure; study; surveys; sze; sze cluster; sze observations; sze polarization; sze spectrum; temperature; thermal; thermal sze; total; universe; velocity; wide
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        item: #432 of 1243
          id: ap-1904
      author: Whalen, Daniel J.
       title: THE FIRST STARS
        date: 2013-12-18
       words: 3978
      flesch: 62
     summary: Pop III stars are the key to the character of primeval galaxies, the first heavy elements, the onset of cosmological reionization, and the seeds of supermassive black holes. The original numerical simulations suggested that Pop III stars formed in small pregalactic structures known as cos- mological minihalos at z ∼ 20 ÷ 30, or ∼ 200 Myr after the Big Bang [1–4, 24].
    keywords: accretion; apj; black; collapse; cosmic; cosmological; detection; disk; early; et al; explosions; final; formation; fragments; galaxies; halo; holes; iii; j. et; jwst; m o; mass; masses; metal; mnras; models; norman; poor; pop; pop iii; primordial; simulations; sne; stars; supernovae; time; today; universe; whalen
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        item: #433 of 1243
          id: ap-1906
      author: Lovisari, Lorenzo; Laganá, Tatiana F.; Borm, Katharina; Schellenberger, Gerrit; Reiprich, Thomas H.
       title: METALS IN THE ICM: WITNESSES OF CLUSTER FORMATION AND EVOLUTION
        date: 2013-12-18
       words: 2699
      flesch: 57
     summary: Furthermore, the ob- served evolution of metal abundances can trace the star formation rate and the element ratios, e.g. the ratio of Fe and α-elements can be used to obtain infor- mation on the different types of supernovae that have 580 vol. It is challenging to measure metal abundances in distant clusters, is challenging, and it requires very high quality data.
    keywords: a&a; abundance; acta; clusters; core; different; distribution; elements; enrichment; erosita; et al; evolution; formation; galaxies; galaxy; gas; grant; groups; high; icm; large; lovisari; mass; measurements; metal; metallicity; polytechnica; prep; processes; profiles; radial; redshift; time
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        item: #434 of 1243
          id: ap-1909
      author: Sato, Kosuke; Matsushita, Kyoko; Ishisaki, Yoshitaka; Yamasaki, Noriko Y.; Ohashi, Takaya
       title: THERMAL AND CHEMICAL EVOLUTIONS OF GALAXY CLUSTERS OBSERVED WITH SUZAKU
        date: 2013-12-18
       words: 3946
      flesch: 67
     summary: We studied the properties of the intracluster medium (ICM) of galaxy clusters to the outer regions observed with Suzaku. Keywords: galaxy clusters, X-rays, thermal evolution, chemical evolution.
    keywords: abundance; band; clusters; derived; entropy; et al; figure; galaxies; icm; kev; light; luminosity; mass; metal; observed; pasj; profiles; r180; r200; r500; radial; radius; ratios; region; sato; similar; sne; suzaku; temperature; type; xmm
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        item: #435 of 1243
          id: ap-1911
      author: Bernabei, R.; Belli, P.; Cappella, F.; Caracciolo, V.; Cerulli, R.; Dai, C. J.; d’Angelo, A.; Di Marco, A.; He, H. L.; Incicchitti, A.; Ma, X. H.; Montecchia, F.; Sheng, X. D.; Wang, R. G.; Ye, Z. P.
       title: DAMA RESULTS: DARK MATTER IN THE GALACTIC HALO
        date: 2013-12-18
       words: 4700
      flesch: 68
     summary: J. A 47, 91 [26] K. Freese et al.: 2005, Phys. Rev. D 61, 117301; R. Bernabei et al.: 2000, New J. of Phys. 2, 15.1; 2000, Phys.
    keywords: annual; background; belli; bernabei; bernabei et; cycles; dama; dark; data; different; energy; et al; eur; events; experimental; exposure; galactic; halo; independent; instr; interaction; interval; kev; large; lett; libra; low; matter; meth; model; modulation; nucl; nuclei; particles; phys; positive; present; processes; rate; related; results; rev; sensitive; set; signature; single; spin
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        item: #436 of 1243
          id: ap-1912
      author: Šimon, Vojtech
       title: NON-THERMAL EMISSION FROM CATACLYSMIC VARIABLES: IMPLICATIONS ON ASTROPARTICLE PHYSICS
        date: 2013-12-18
       words: 4553
      flesch: 63
     summary: [25] Körding, E. et al., 2008, Sci, 320, 1318 [26] Körding, E. G. et al., 2011, MNRAS, 418, L129 [27] Kuijpers, J. et al., 1997, A&A, 322, 242 [28] Kuulkers, E. et al., 2006, in: Compact stellar X-ray sources. [18] Harrison, T. E. et al., 2010, ApJ, 710, 325 [19] Heise, J. et al., 1985, A&A, 148, L14 [20] Henden, A., 2012, AAVSO International database, private communication [21] Iyudin, A. F. et al., 2005, A&A, 443, 477 [22] Iyudin, A. F., 2010, ARep, 54, 611 [23] José, J. et al., 2006, NuPhA, 777, 550 [24] Kafka, S., Hoard, D. W., 2009, PASP, 121, 1352
    keywords: 22na; accretion; activity; apj; band; conditions; cvs; decay; detection; disk; donor; dwarf; emission; et al; field; fig; flares; flux; gamma; high; light; line; long; low; magnetic; magnetosphere; matter; non; nova; observed; optical; outburst; particles; polars; production; radiation; radio; ray; rays; region; source; spectral; state; synchrotron; system; tev; thermal; time
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        item: #437 of 1243
          id: ap-1916
      author: Panagia, Nino
       title: SUPERNOVA 1987A: CELEBRATING A SILVER JUBILEE
        date: 2013-12-18
       words: 4466
      flesch: 61
     summary: [33] Manchester, R.N. et al. 2002, PASAu, 19, 207 [34] Maran, S.P. et al. 2000, ApJ, 545, 390 [35] Mattila, S. et al. 2010, ApJ, 717, 1140 [51] Schaefer, B.E. 1987, ApJ, 323, L47 [52] Sonneborn, G., Altner, B., Kirshner, R.P. 1987, ApJ, 323, L35 [53] Sonneborn, G. et al. 1997, ApJ, 477, 848 [54] Sonneborn, G. et al. 1998, ApJ, 492, 139 [55] Staveley-Smith, L. et al. 2007,in
    keywords: aip; apj; bouchet; circumstellar; collapse; conf; core; day; detection; dust; early; eds; ejecta; emission; equatorial; et al; event; evidence; explosion; flux; high; hst; inner; k.w; late; mass; massive; mccray; nature; neutrinos; neutron; new; observations; optical; panagia; proc; progenitor; ray; remnant; ring; star; study; supergiant; supernova; system; times; vol; weiler; years
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        item: #438 of 1243
          id: ap-1918
      author: Sasaki, Manami
       title: GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION
        date: 2013-12-18
       words: 3073
      flesch: 66
     summary: In Fig. 4 we compare the radial number distribution of X-ray SNRs in M 31 to that of Galactic SNRs and of X-ray SNRs in M 33 Composite image of the remnant of SN 1006 consisting of X-ray data from Chandra in blue, optical data from the University of Michigan’s 0.9 m
    keywords: accelerated; acceleration; acta; addition; chandra; clouds; cosmic; crs; data; distribution; electrons; emission; energies; energy; extragalactic; field; figure; filaments; galactic; galaxy; gas; higher; interstellar; ism; law; magnetic; non; observations; particles; phase; phys; polytechnica; power; radio; ray; rays; remnants; shock; snrs; sources; spectrum; supernova; synchrotron; thermal; waves
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        item: #439 of 1243
          id: ap-192
      author: El-Hady, H. M. Abd; Grünwald, A.; Vlčková, K.; Zeithammerová, J.
       title: Clinoptilolite in Drinking Water Treatment for Ammonia Removal
        date: 2001-01-01
       words: 2887
      flesch: 70
     summary: The processes used for the removal of ammonium ions from drinking waters include air stripping, nitrification, breakpoint chlorination, and ion exchange. They are used for various applications, e.g., ion exchange, molecular sieves, and air- -drying.
    keywords: ammonia; ammonium; bed; breakthrough; capacity; clino; clinoptilolite; column; czech; drinking; elution; exchange; fig; ion; ions; mg l; nacl; natural; nh4; regeneration; removal; results; tap; vol; volume; water; zeolite
       cache: ap-192.pdf
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        item: #440 of 1243
          id: ap-1921
      author: Aschenbach, Bernd
       title: RX-J0852−4622: THE NEAREST HISTORICAL SUPERNOVA REMNANT – AGAIN
        date: 2013-12-18
       words: 3823
      flesch: 66
     summary: Only at X-ray energies > 1.3 keV does Vela Jr. become X-ray visible. From X-ray measurements additional information is ob- tained for an upper limit of the ambient density of n0,x < 0.029 cm−3(d1
    keywords: absorption; ambient; angular; blue; cosmic; density; distance; emission; energy; expansion; explosion; kev; limit; matter; measurements; progenitor; ray; red; shell; shock; snr; tev; upper; vela; vela jr; velocity; wave; wind
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        item: #441 of 1243
          id: ap-1923
      author: Ota, Naomi
       title: THE IMPACT OF SUZAKU MEASUREMENTS ON ASTROPARTICLE PHYSICS
        date: 2013-12-18
       words: 4067
      flesch: 64
     summary: Objectives We search for non-thermal hard X-ray emission from merging clusters using Suzaku broad-band X-ray spec- troscopy to reveal the origin of hard X-ray emission and obtain new insight into the gas physics and the cluster dynamical evolution. Aiming at understanding the physics of gas heating/particle acceleration and the cluster dynamical evolution, we search for non-thermal hard X-ray emission from merging clusters, particularly A2163 and the Bullet Cluster, based on the Suzaku and XMM-Newton/Chandra joint analyses.
    keywords: a2163; analysis; apj; band; bullet; clusters; cm−2; component; data; emission; energy; flux; gas; hard; hard x; high; hot; hxd; kev; magnetic; merging; model; multi; newton; non; observations; pasj; present; radio; ray; ray emission; rxte; suzaku; s−1; temperature; thermal; thermal emission; thermal hard; xmm
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        item: #442 of 1243
          id: ap-1925
      author: Guainazzi, Matteo
       title: XMM-NEWTON SCIENTIFIC HIGHLIGHTS: X-RAY SPECTROSCOPIC POPULATION STUDIES OF AGN
        date: 2013-12-18
       words: 3906
      flesch: 59
     summary: Only 3 % of Type 1 AGN are X-ray obscured, and 3 % of Type 2 AGN are X-ray unobscured in the XMM-Newton Wide Area Survey (486 objects; Accretion disk inclination angle ı derived from X-ray relativistic spectroscopy on the FERO and GREDOS samples
    keywords: a&a; accretion; acta; agn; angle; apj; class; data; density; different; disk; emission; energy; et al; extent; fig; fraction; galaxies; galaxy; gas; guainazzi; high; host; inclination; innermost; ionized; k.a; kev; line; mnras; newton; objects; observational; parameter; polytechnica; radio; ray; reflection; relativistic; review; samples; scenario; scientific; sight; source; spectra; spectroscopic; structure; studies; systematic; s−1; torus; type; xmm
       cache: ap-1925.pdf
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        item: #443 of 1243
          id: ap-1926
      author: Meintjes, Pieter J.; Nkundabakura, Pheneas
       title: THE SEARCH FOR BLAZARS AMONG THE UNIDENTIFIED EGRET gamma-RAY SOURCES
        date: 2013-12-18
       words: 2052
      flesch: 66
     summary: The spectra of both these sources are shown in Fig. 2 (PKS J0820−5705) and Fig. 3 (PMN J0710−3850), respectively. The spec- trum for PKS J0820−5705 resembles that of an FSRQ at redshift z = 0.06, while the spectrum of PMN J0710−3850 shows broad and narrow lines resembling the spectrum of a LINER or Seyfert I galaxy at redshift z = 0.129.
    keywords: 3eg; acta; blazars; counterparts; distribution; egret; emission; follow; galactic; galaxy; gamma; intranight; j0706−3837; j0710−3850; j0820−5705; j0821−5814; model; optical; pks; pmn; polytechnica; radio; ray; seyfert; sources; spectral; spectrum; ssc; study; unidentified; variability
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        item: #444 of 1243
          id: ap-1930
      author: Pittori, Carlotta
       title: AGILE DATA CENTER AT ASDC AND AGILE HIGHLIGHTS
        date: 2013-12-18
       words: 3398
      flesch: 60
     summary: Moreover, AGILE has contributed to the discovery and study of new galactic gamma-ray source classes, of peculiar star systems and of mysterious galactic gamma-ray transients, including the observation that the energy spectrum of terrestrial gamma-ray flashes (TGF) ex- tends well above 40 MeV. The 2012 Bruno Rossi international Prize was awarded to the PI, Marco Tavani, and the AGILE team for the discovery of rapid gamma-ray flares over daily timescales from the Crab Nebula, thought to be a steady enough source of energy in all wavebands from optical to gamma rays [15]. The AGILE Data Center, part of the ASI Science Data Center (ASDC) located in Frascati, Italy, is in charge of all the science oriented activities related to the analysis, archiving and distribution of AGILE data.
    keywords: acceleration; adc; agile; asdc; asi; center; crab; cygnus; data; detection; discovery; emission; energies; energy; et al; fermi; figure; flares; flux; galactic; gamma; gev; grid; ground; hard; high; instrument; kev; mev; nebula; observations; pointing; pulsar; range; ray; rays; references; science; sky; source; system; tavani; team; vol; wind; years
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        item: #445 of 1243
          id: ap-1933
      author: Di Sciascio, Giuseppe
       title: ARGO-YBJ: STATUS AND HIGHLIGHTS
        date: 2013-12-18
       words: 4350
      flesch: 69
     summary: Five known VHE γ-ray sources were detected with a statistical significance greater than 5 standard deviations (s.d.), i.e. Crab Nebula, Mrk421, Mrk501, MGRO J1908+06 and MGRO J2031+41. the signal significance is 4.1 s.d. (pre-trial), while 1.0 s.d. is expected from the steady flux [11].
    keywords: analysis; anisotropy; argo; bartoli; cm−2; consistent; crab; data; days; emission; energies; energy; et al; events; excess; experiment; figure; flare; flux; j1908; j2019; j2031; measured; measurements; mgro; milagro; mjd; nebula; observation; range; ray; region; results; s.d; scale; significance; source; spectrum; statistical; steady; s−1; tev; time; ybj
       cache: ap-1933.pdf
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        item: #446 of 1243
          id: ap-1935
      author: Brenneman, Laura
       title: MEASURING SUPERMASSIVE BLACK HOLE SPINS IN AGN
        date: 2013-12-18
       words: 4998
      flesch: 69
     summary: [27] have done, re- quires the compTT component to possess significant curvature up into the Fe K band, reducing the need for the relativistic reflection to account for this same curvature seen in the data and thereby eliminating the requirement of high BH spin. Conclusions and future directions Measuring BH spin is painstaking work, even with the best data from current observatories such as XMM- Newton and Suzaku.
    keywords: absorption; accretion; agn; astr; astrophys; bh spin; black; brenneman; broad; continuum; data; different; disk; distribution; emission; energies; energy; et al; excess; fit; gas; high; hole; host; inner; kev; line; local; modeling; models; mon; ngc; observation; order; power; ray; recent; reflection; reynolds; sample; smbh; soc; soft; spectrum; spin; supermassive; suzaku; type; values; xis; xmm
       cache: ap-1935.pdf
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        item: #447 of 1243
          id: ap-1936
      author: Díaz Trigo, Maria; Boirin, Laurence
       title: DISC ATMOSPHERES AND WINDS IN X-RAY BINARIES
        date: 2013-12-18
       words: 4942
      flesch: 59
     summary: These observations are in agreement with models of photoionised winds by Sim et al. In contrast, the same X-rays that prevent UV line opacity can heat low density gas to a temperature ∼ 107 K and potentially drive thermal winds.
    keywords: a&a; absorption; accretion; apj; atmospheres; binaries; boirin; broad; column; compton; consistent; corona; disc; díaz; emission; et al; features; high; iron; launching; line; lmxbs; luminosity; magnetic; mass; mechanism; observations; outflow; photoionised; plasma; presence; radius; ray; scattering; showing; sources; state; systems; thermal; trigo; velocity; wind
       cache: ap-1936.pdf
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        item: #448 of 1243
          id: ap-1939
      author: Ziółkowski, Janusz
       title: POPULATION OF BLACK HOLES IN THE MILKY WAY AND IN THE MAGELLANIC CLOUDS
        date: 2013-12-18
       words: 5168
      flesch: 70
     summary: Introduction Our Galaxy (MW) contains one supermassive BH (SgrA*), a small number (between zero and a few tens) of intermediate mass BHs (IMBHs) and about 107 to 108 stellar mass BHs (SM BHs). BH candidates from microlensing events Microlensing events are, at present, the only method for detecting solitary stellar mass BH candidates (BHCs).
    keywords: a.c; analysis; apj; bhcs; bhs; binaries; black; candidates; cluster; companion; continuum; cyg; estimates; events; fabian; gcs; grs; high; hole; line; luminosity; mass; mass bhs; masses; massive; mcclintock; mcs; method; miller; modeling; nature; object; possible; ray; recent; results; rotating; sgra; source; spin; steiner; stellar; system; unseen; value; xrbs; xte; x−1; years
       cache: ap-1939.pdf
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        item: #449 of 1243
          id: ap-194
      author: Prokopska, A.
       title: Application of Morphological Analysis Methodology in Architectural Design
        date: 2001-01-01
       words: 3924
      flesch: 47
     summary: In morphological analysis method, the examination of fragments of reality or their design, and regarding these fragments as a whole composed of various parts (e.g., architectural forms), corresponds with the modern level of complexity of design processes as intellectual processes, and the complexity of the design of technical objects, including architectural objects. 3 Selected procedures of morphological analysis Morphological analysis was introduced by Fritz Zwicky [8–10], an astronomer3 who succesfully used this method, a pioneer of the construction of reaction engines.
    keywords: acta; analysis; app; approach; architectural; architectural design; art; combinations; complexity; czech; design; development; example; features; fig; form; house; http://ctn.cvut.cz/ap/; knowledge; level; lull; matrix; method; methodology; morphological; morphological analysis; new; no.1/2001; number; objects; point; polish; polytechnica; possible; problem; process; processes; publishing; science; set; solutions; structure; study; system; systemic; technical; university; values; vol; zwicky
       cache: ap-194.pdf
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        item: #450 of 1243
          id: ap-1940
      author: Beall, James H.
       title: FROM GALACTIC TO EXTRAGALACTIC JETS: A REVIEW
        date: 2013-12-18
       words: 4556
      flesch: 60
     summary: Concurrent radio and X-ray variability of Centaurus A (NGC 5128) as an indication of jet launch or jet–cloud interactions? The picture that emerges, therefore, is consis- tent with the observations of spatially and temporally resolved galactic microquasars and AGN jets.
    keywords: 3c454.3; acceleration; accretion; agn; ambient; astron; astrophys; beall; behavior; blobs; cen; complex; concurrent; consistent; core; cosmic; data; der; different; disk; energy; et al; evolution; frequencies; galactic; ghz; high; interaction; j.h; jet; jets; laan; medium; microquasars; moving; multifrequency; observations; radio; ray; region; remarkable; scales; source; structures; time; van; variability
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        item: #451 of 1243
          id: ap-1942
      author: Bisnovatyi-Kogan, Gennady; Klepnev, Alexandr S.; Lovelace, Richard V.E.
       title: ACCRETION DISKS WITH A LARGE SCALE MAGNETIC FIELD AROUND BLACK HOLES
        date: 2013-12-18
       words: 4420
      flesch: 57
     summary: Jets are observed in objects with black holes: collimated ejection from accretion disks. The standard model for accretion disks of Shakura and Sunyaev
    keywords: accretion; accretion disk; advection; artemova; bisnovatyi; black; conductivity; cylinder; diffusion; disk; equations; field; formation; g.s; high; holes; inner; jet; kogan; large; lovelace; magnetic; magnetic field; magneto; matter; model; non; optical; oscillations; outer; poloidal; radial; radiative; region; rotating; scale; solution; state; stationary; structure; surface; temperature; thickness; thin; time; turbulent; velocity; vertical; viscosity
       cache: ap-1942.pdf
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        item: #452 of 1243
          id: ap-1945
      author: Beall, J. H.; Guillory, J.; Rose, D. V.; Wolff, Michael T.
       title: MODELING JET INTERACTIONS WITH THE AMBIENT MEDIUM
        date: 2013-12-18
       words: 2981
      flesch: 52
     summary: Solving the system of equations yields a time-dependent set of normal- ized wave energies (i.e., the ratio of the wave energy divided by the thermal energy of the plasma) that are generated as a result of jets interaction with the ambient medium. Recent high-resolution (see, e.g., [13]) observations of astrophysical jets reveal complex structures apparently caused by ejecta from the central engine as the ejecta interact with the surrounding interstellar material.
    keywords: ambient; ambient medium; ap.j; astrophysical; beall; beam; code; d.v; density; deposition; detailed; effects; electron; energy; equations; figure; guillory; hydrodynamic; instability; interaction; j.h; jet; jets; large; length; loss; medium; model; momentum; pic; plasma; population; processes; rate; relativistic; rose; scale; simulations; transfer; wave
       cache: ap-1945.pdf
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        item: #453 of 1243
          id: ap-1946
      author: Amati, Lorenzo; Dichiara, Simone
       title: INVESTIGATING THE Ep, i –Eiso CORRELATION
        date: 2013-12-18
       words: 4856
      flesch: 54
     summary: Fermi GRBs are marked with red (GBM detection) and blue (GBM + LAT detec- tion) color. Moreover, [6] showed that the normalization of the correlation varies only marginally using GRBs measured by individual instru- ments with different sensitivities and energy bands, 689 Lorenzo Amati, Simone Dichiara Acta Polytechnica Figure 2. Location of Fermi GRBs in the Ep – fluence plane based on the analysis reported by Nava et al.
    keywords: addition; amati; analysis; apj; band; consistent; correlation; cosmological; data; different; eiso; eiso correlation; emission; energetic; energy; estimates; events; evidence; fermi; fermi grbs; fluence; function; gbm; gev; grbs; law; limits; long; long grbs; measured; measurements; observed; parameters; peak; physics; plane; power; prompt; properties; redshift; sample; short; significant; spectral; sub; swift
       cache: ap-1946.pdf
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        item: #454 of 1243
          id: ap-1948
      author: Stanev, Todor
       title: ULTRAHIGH ENERGY COSMIC RAYS: REVIEW OF THE CURRENT SITUATION
        date: 2013-12-18
       words: 3602
      flesch: 66
     summary: Keywords: high energy cosmic rays, hadronic interaction at very high energy, origin of the highest energy cosmic rays. The Telescope Array also presented [12] the distri- butions of Xmax in the energy bins shown in Fig. 3. At relatively low energy, the widths of the distribu- tions were more similar to proton showers, while at high energy the statistics is not enough to judge the distributions. 2.3.
    keywords: array; auger; chemical; composition; correlation; cosmic; data; detectors; different; energy; energy cosmic; energy spectrum; events; experiments; field; figure; fluorescent; heavy; high; highest; hires; measured; measurements; new; nuclei; rays; results; showers; sources; spectrum; statistics; surface; surface array; telescope; telescope array; uhecr; view; xmax
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        item: #455 of 1243
          id: ap-1951
      author: Grillo, Aurelio F.
       title: THE MASS COMPOSITION OF ULTRA HIGH ENERGY COSMIC RAYS
        date: 2013-12-18
       words: 3122
      flesch: 59
     summary: Xmax (upper panel) and RMS(Xmax) com- pared with predicted values for pure compositions in different interaction models. The most used shower observables for studying the composition of Ultra High Energy Cosmic Rays (UHECR) are the mean value of the depth of shower maximum, 〈Xmax〉, and its dispersion, σ(Xmax).
    keywords: auger; average; composition; cosmic; data; detector; different; energies; energy; fig; figure; general; groups; high; interaction; iron; larger; mass; measurements; models; nuclei; observatory; particle; pierre; plot; proc; proton; pure; range; rays; shower; sources; spectrum; ultra; values; variance; xmax; σ(xmax
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        item: #456 of 1243
          id: ap-1953
      author: Aloisio, Roberto
       title: COMPUTATIONAL SCHEMES FOR THE PROPAGATION OF ULTRA HIGH ENERGY COSMIC RAYS
        date: 2013-12-18
       words: 3043
      flesch: 57
     summary: One should distin- guish between primary nuclei, i.e. nuclei accelerated at the source and injected in the intergalactic space, and secondary nuclei and nucleons, i.e. particles pro- duced as secondaries in the photo-disintegration chain. In particular, the flux of secondary nuclei and nucleons produced in the photo-disintegration 705 Roberto Aloisio Acta Polytechnica chain of primary A0 is obtained by the numerical computation of A0 nested integrals and this computa- tion should be repeated each time the hypothesis on sources (injection and distribution) is changed.
    keywords: aloisio; approach; backgrounds; case; cmb; computation; different; disintegration; distribution; energies; energy; equation; flux; injection; kinetic; nuclei; nucleus; pair; particles; photo; phys; primary; process; production; propagation; protons; red; schemes; secondary; shift; sources; spectrum; uhecr
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        item: #457 of 1243
          id: ap-1954
      author: Petrukhin, Anatoly A.
       title: INFLUENCE OF THE RESULTS OF UHECR DETECTION ON THE LHC EXPERIMENTS
        date: 2013-12-18
       words: 3514
      flesch: 59
     summary: The cosmic ray energy region 1015 ÷ 1017 eV corresponds to LHC energies 1 ÷ 14 TeV in the center-of-mass system. Of course, there are many tasks connected with investigations of hadron-hadron interactions at LHC energies, tests of existing theoretical models be- havior at such energies, etc.
    keywords: approach; change; composition; cosmic; eas; energies; energy; evidence; excess; experiments; fig; figure; increase; interaction; investigations; knee; large; lhc; mass; matter; model; muons; new; nuclear; nuclei; number; observed; parameters; particles; physical; physics; possible; primary; production; qgm; quark; ray; results; spectrum; state; system; tev
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        item: #458 of 1243
          id: ap-1957
      author: Bruno, A.; Adriani, O.; Barbarino, G. C.; Bazilevskaya, G. A.; Bellotti, R.; Boezio, M.; Bogomolov, E. A.; Bongi, M.; Bonvicini, V.; Borisov, S.; Bottai, S.; Cafagna, F.; Campana, D.; Carbone, R.; Carlson, P.; Casolino, M.; Castellini, G.; Consiglio, L.; De Pascale, M. P.; De Santis, C.; De Simone, N.; Di Felice, V.; Galper, A. M.; Gillard, W.; Grishantseva, L.; Jerse, G.; Karelin, A. V.; Kheymits, M. D.; Koldashov, S. V.; Krutkov, S. Y.; Kvashnin, A. N.; Leonov, A.; Malakhov, V.; Marcelli, L.; Mayorov, A. G.; Menn, W.; Mikhailov, V. V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Nikonov, N.; Osteria, G.; Palma, F.; Papini, P.; Pearce, M.; Picozza, P.; Pizzolotto, C.; Ricci, M.; Ricciarini, S. B.; Rossetto, L.; Sarkar, R.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Y. I.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S. A.; Yurkin, Y. T.; Wu, J.; Zampa, G.; Zampa, N.; Zverev, V. G.
       title: PRECISE COSMIC RAYS MEASUREMENTS WITH PAMELA
        date: 2013-12-18
       words: 3864
      flesch: 60
     summary: PAMELA data are consistent with those of other ex- periments, considering the statistical and systematic uncertainties of the various experiments [7, and refer- ences therein]. [24] and PAMELA data, respec- 715 A. Bruno et al.
    keywords: adriani; antimatter; antiprotons; cosmic; data; department; electron; energy; et al; existence; experiments; figure; flux; gev; helium; infn; interval; italy; lett; measured; measurements; models; modulation; nuclei; pamela; particles; phys; physics; positron; predictions; production; propagation; radiation; range; ratio; rays; references; results; rev; rigidity; secondary; sezione; solar; sources; spectra; spectrum; standard; university
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        item: #459 of 1243
          id: ap-196
      author: Haghi, A. K.
       title: Experimental Investigations on Drying of Porous Media Using Infrared Radiation
        date: 2001-01-01
       words: 1629
      flesch: 56
     summary: Keywords: infrared dryer, porous media, drying rate, image analysis Table 1: Fabrics used in the drying study FABRIC FIBER WEIGHT, g/m2 A COTTON 130 B POLYESTER 150 In the drying process, water is evaporated from the ex- posed yarn surfaces and replaced by water migration from within the fabric structure. [7]: � �EVAP H H SLDi f� � (1) Where S = speed of fabric in the oven (m/s), L = fabric width (m), D = superficial weight of dry fabric (g/m2).
    keywords: analysis; constant; content; dryer; drying; element; evaporation; fabric; haghi; heat; image; infrared; moisture; object; period; processing; rate; romania; study; surface; temperature; textile; thermal; time; university; water
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        item: #460 of 1243
          id: ap-1961
      author: Erlykin, Anatoly D.; Wolfendale, Arnold W.
       title: DO WE SEE THE ‘IRON PEAK’?
        date: 2013-12-18
       words: 2747
      flesch: 72
     summary: Keywords: cosmic rays, knee, single source, iron peak. References [1] Abbasi R.U. et al., 2009, Astropart.
    keywords: 32nd; background; beijing; cno; composition; conf; contribution; cosmic; energy; erlykin; fig; fine; int.cosm.ray; iron; knee; mass; model; nuclei; origin; peak; pev; region; shape; sharpness; single; single source; source; spectra; spectrum; structure
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        item: #461 of 1243
          id: ap-1963
      author: Chiavassa, A.; Apel, W. D.; Arteaga-Velázquez, J. C.; Bekk, K.; Bertaina, M.; Blümer, J.; Bozdog, H.; Brancus, I. M.; Cantoni, E.; Cossavella, F.; Daumiller, K.; de Souza, V.; Di Pierro, F.; Doll, P.; Engel, R.; Engler, J.; Finger, M.; Fuchs, B.; Fuhrmann, D.; Garino, F.; Gils, H. J.; Glasstetter, R.; Grupen, C.; Haungs, A.; Heck, D.; Hörandel, J. R.; Huber, D.; Huege, T.; Kampert, K.-H.; Kang, D.; Klages, H. O.; Link, K.; Łuczak, P.; Ludwig, M.; Mathes, H. J.; Mayer, H. J.; Melissas, M.; Milke, J.; Mitrica, B.; Morello, C.; Oehlschläger, J.; Ostapchenko, S.; Palmieri, N.; Petcu, M.; Pierog, T.; Rebel, H.; Roth, M.; Schieler, H.; Schoo, S.; Schröder, F. G.; Sima, O.; Toma, G.; Trinchero, G. C.; Ulrich, H.; Weindl, A.; Wochele, J.; Wommer, M.; Zabierowski, J.
       title: DETECTION OF A CHANGE OF SLOPE IN THE SPECTRUM OF HEAVY MASS COSMIC RAYS PRIMARIES BY THE KASCADE-GRANDE EXPERIMENT
        date: 2013-12-18
       words: 2148
      flesch: 62
     summary: Keywords: cosmic rays, energy spectrum, extensive air showers. Reconstructed energy spectrum of the electron-poor and electron-rich components together with the all-particle spectrum for the angular range 0°
    keywords: change; cic; collaboration; cosmic; eas; energy; events; experiment; feature; für; germany; gev; grande; heavy; institut; kascade; knee; light; like; mass; nch; number; phys; primaries; primary; range; rays; shower; slope; spectrum; university
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        item: #462 of 1243
          id: ap-1965
      author: Tricomi, Alessia
       title: RESULTS FROM LHCF EXPERIMENT
        date: 2013-12-18
       words: 2814
      flesch: 61
     summary: HE] [3] A. Chiavassa, this Workshop [4] O. Adriani et al., JINST 3 (2008) S08006 [6] O. Adriani et al., accepted in Phys.
    keywords: analysis; arm1; arm2; cm2; collaboration; collisions; cosmic; data; detectors; different; dpmjet; energy; experiment; figure; gev; hadronic; interaction; lhcf; measurements; models; neutral; order; photon; physics; position; rapidity; region; results; showers; spectra; tev; transverse
       cache: ap-1965.pdf
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        item: #463 of 1243
          id: ap-1966
      author: van Putten, Maurice H.P.M.
       title: SEARCH FOR GRAVITATIONAL WAVES FROM SUPERNOVAE AND LONG GRBS
        date: 2013-12-18
       words: 4624
      flesch: 59
     summary: We report on evidence for black hole spindown in the light curves of the BATSE catalogue of 1491 long GRBs by application of matched filtering. According to the Kerr metric, the angular momen- tum of rotating black holes induces frame dragging.
    keywords: accretion; angular; baryon; batse; black; black hole; curve; deviation; disk; dragging; emission; energetic; energy; engine; events; figure; filtering; frame; gravitational; grbs; high; hole; hyper; inner; isco; kerr; light; long; long grbs; luminosity; m.h.p.m; magnetic; mass; matter; model; momentum; neutron; nlc; normalized; outflows; phys; pns; poor; putten; radiation; rotation; spin; spindown; stars; supernovae; t90; template; time; torus; van; velocity; waves
       cache: ap-1966.pdf
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        item: #464 of 1243
          id: ap-1968
      author: Milano, L.; Calloni, E.; De Rosa, R.; De Laurentis, M.; Di Fiore, L.; Garufi, F.
       title: THE PAST AND THE FUTURE OF DIRECT SEARCH OF GW FROM PULSARS IN THE ERA OF GW ANTENNAS
        date: 2013-12-18
       words: 2867
      flesch: 71
     summary: [2] Accadia T. et al.: 2012 Journal of Instrumentation 7 P03012 [3] Abbott B P et al.: 2009 Rep. Prog. 27 084005 [31] G.B.Hobbs, et al: 2009 Publ.
    keywords: advanced; class; crab; detection; detectors; direct; emission; energy; eos; et al; frequency; future; grav; gravitational; gws; interferometric; ligo; limit; napoli; past; phys; present; pulsars; quantum; results; rev; search; searches; sensitivity; upper; virgo; waves
       cache: ap-1968.pdf
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        item: #465 of 1243
          id: ap-1971
      author: Martini, M.; Dell’Agnello, S.; Currie, D.; Delle Monache, G. O.; Vittori, R.; Berardi, S.; Boni, A.; Cantone, C.; Ciocci, E.; Lops, C.; Garattini, M.; Maiello, M.; Patrizi, G.; Tibuzzi, M.; Intaglietta, N.; Chandler, J.; Bianco, G.
       title: MOONLIGHT: A NEW LUNAR LASER RANGING RETROREFLECTOR AND THE LUNAR GEODETIC PRECESSION
        date: 2013-12-17
       words: 2649
      flesch: 52
     summary: Since the 1970s Lunar Laser Ranging (LLR) to the Apollo Cube Corner Retroreflector (CCR) arrays (developed by the University of Maryland, UMD) supplied almost all significant tests of General Relativity (Alley et al., 1970; Chang et al., 1971; Bender et al.,1973): possible changes in the gravitational constant, gravitational self-energy, weak equivalence principle, geodetic precession, inverse-square force-law. Space Res. 37(1), 67–71, 2006; Lunar laser ranging science: gravitational physics and lunar interior and geodesy
    keywords: accuracy; acta; apollo; arrays; ccr; characterization; currie; data; dell’agnello; earth; error; geodetic; gravitational; infn; laser; librations; llr; lnf; lunar; lunar laser; measurement; moonlight; new; payload; precession; relativity; retroreflector; satellite; scf; science; scientific; space; station; test; value; williams; years
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        item: #466 of 1243
          id: ap-1973
      author: Grieder, Peter K. F.
       title: RECENT DEVELOPMENTS IN ULTRA-HIGH ENERGY NEUTRINO ASTRONOMY
        date: 2013-12-18
       words: 3835
      flesch: 63
     summary: [43] Mangano, S.: 2011, Proc. ICRC HE2.3, 118 [44] Mannheim, K. et al.: 2000, P.R. D 63, 023003 53 supplement/2013 Recent Developments in Ultra-High Energy Neutrino Astronomy [49] Münch, K. et al.: 2005, Proc.
    keywords: acoustic; air; astronomy; astrop; attenuation; cherenkov; cosmic; deep; details; detection; detector; different; emission; energy; et al; events; expected; experiments; fig; flavors; fluorescence; gzk; hadron; he2.3; high; ice; icecube; icrc; large; length; muon; neutrino; optical; p.r; p.r.l; pao; phys; primary; proc; radio; reaction; recent; showers; source; spectrum; target; telescopes; uhe; water
       cache: ap-1973.pdf
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        item: #467 of 1243
          id: ap-1974
      author: Maldera, S.
       title: LIMIT ON UHE NEUTRINO FLUXES FROM THE PIERRE AUGER OBSERVATORY
        date: 2013-12-18
       words: 3096
      flesch: 59
     summary: Exposure of the surface detector for ES and DG neutrino induced showers, corresponding re- spectively to 3.5 and 2 years of the complete and fully efficient surface detector (the deployment of the SD was concluded by the end of 2008). References [1] F. Halzen et al., Reports on Progress in Physics 65, (2002) 1025 [2] L. Anchordoqui, T.Montaruli, Annual Review of Nuclear and Particle Science 60, (2010) 129–162
    keywords: analysis; auger; c.l; case; collaboration; declination; detector; earth; energy; exposure; flux; ground; icecube; identification; large; limits; neutrino; observatory; physics; pierre; point; review; selection; showers; signal; single; skimming; source; stations; surface; tau; time; trigger; uhe; upper; zenith
       cache: ap-1974.pdf
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        item: #468 of 1243
          id: ap-1977
      author: Ronga, Francesco
       title: ANALYSIS OF THE MACRO EXPERIMENT DATA TO COMPARE PARTICLE ARRIVAL TIMES UNDER GRAN SASSO
        date: 2013-12-18
       words: 2917
      flesch: 66
     summary: Difference between track time and average time for multiple parallel muons with 2 or 3 tracks as function of cos(θ). Difference between track time and average time for multiple muons with 2 or 3 tracks (continuos line) compared with a “simulation” using the data (dashed line).
    keywords: analysis; average; cascade; collaboration; cos(θ; cosmic; data; decay; detector; differences; different; energy; events; experiment; figure; gran; horizontal; macro; massive; multiple; muons; neutrino; new; opera; particles; phys; primary; ray; region; result; sasso; scintillator; streamer; study; supermodules; tev; time; tracks; underground; vertical
       cache: ap-1977.pdf
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        item: #469 of 1243
          id: ap-198
      author: Kratěna, J.; Fořt, I.; Brůha, O.
       title: Dynamic Effect of Discharge Flow of a Rushton Turbine Impeller on a Radial Baffle
        date: 2001-01-01
       words: 3594
      flesch: 61
     summary: (2) can be rearranged into the form � �� � � � �Q T w Mb t b b d th2 , , , , (3) where quantity Mb d th, , represents a theoretically considered portion of the time averaged (mean) torsional moment of the baffles corresponding to the area of the force interaction of the force action of the impeller discharge stream and the baf- fle (see shaded area below the curves in Figs. 6 and 7). 8) from the axis of symmetry of the cylindrical mix- ing vessel: � � � �R T bb � �2 2 3 .
    keywords: agitated; baffles; blade; component; cylindrical; czech; dimensionless; discharge; disk; dynamic; fig; flow; force; height; impeller; impeller discharge; liquid; mean; mixing; moment; peripheral; pressure; radial; reaction; region; rushton; standard; stream; target; turbine; vessel
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        item: #470 of 1243
          id: ap-1983
      author: Desiati, Paolo
       title: ICECUBE OBSERVATORY: NEUTRINOS AND THE ORIGIN OF COSMIC RAYS
        date: 2013-12-18
       words: 4743
      flesch: 58
     summary: At the same time, IceCube has accumulated a large number of cosmic ray induced neutrinos produced in the at- mosphere, making it possible to probe the combined effect of hadronic interaction models, cosmic ray spec- trum and composition on the neutrino spectrum up to a few hundred TeV [10]. The completed IceCube Observatory, the first km3 neutrino telescope, is already providing the most stringent limits on the flux of high energy cosmic neutrinos from point-like and diffuse galactic and extra-galactic sources.
    keywords: abbasi; accelerated; acceleration; anisotropy; apj; array; astropart; atmospheric; background; bahcall; bundles; configuration; cosmic; cosmic rays; current; data; detection; detector; diffuse; energies; energy; et al; events; experimental; figure; flux; galactic; galaxy; gev; hadronic; hemisphere; high; icecube; large; limits; magnetic; models; muon; neutrinos; observations; observatory; origin; particle; phys; possible; rays; rev; scale; search; sensitivity; sky; snr; sources; spectrum; tev; time; upper; waxman
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        item: #471 of 1243
          id: ap-1984
      author: Farnese, Christian
       title: NEUTRINOS FROM ICARUS
        date: 2013-12-18
       words: 3518
      flesch: 56
     summary: Neutrino time of flight measurement with the 2011 CNGS bunched beam From October 21st to November 6th 2011 the CERN CNGS neutrino beam has been operated in a new, lower intensity mode that allows a very accurate neu- trino time of flight measurement on an event by event basis. In particular for CNGS neutrino events, using the “Early Warning Signal” sent from CERN to LNGS 80 ms be- fore each proton extraction, a 60 µs gate is open at the expected proton extraction time, and the trigger is gen- erated when the PMT sum signal is present in at least one TPC chamber within the gate.
    keywords: argon; beam; cern; cngs; cngs neutrino; collab; corresponding; detector; drift; e+e−; electron; energy; events; expected; figure; gev; high; icarus; icarus t600; interaction; lar; liquid; lngs; measurement; muon; neutrino; neutrino beam; neutrino events; new; order; p.o.t; pairs; physics; pmt; proton; run; search; signal; spectrometers; sterile; system; t600; thanks; time; tpc; trigger
       cache: ap-1984.pdf
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        item: #472 of 1243
          id: ap-1986
      author: Tomei, Claudia
       title: STATUS OF THE CUORE EXPERIMENT
        date: 2013-12-18
       words: 2775
      flesch: 64
     summary: CUORE bolometers [10, 11] are tellurium dioxide crystals. A small tower assembled using CUORICINO crystals (completely reprocessed according to the CUORE standard) was operated underground at LNGS, inside the CUORI- CINO cryostat, to measure the surface activity of the mounting structure
    keywords: 0νββ; 130te; array; assembly; background; beta; bolometers; construction; copper; cryogenic; cryostat; crystals; cuore; cuore-0; cuoricino; decay; detector; double; energy; experiment; half; kev; laboratory; lngs; low; majorana; mass; national; neutrino; nuclear; phase; rare; region; search; status; structure; surface; system; temperature; tower; value
       cache: ap-1986.pdf
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        item: #473 of 1243
          id: ap-1991
      author: Ferroni, Fernando
       title: NEUTRINOLESS DOUBLE BETA DECAY: AN EXTREME CHALLENGE
        date: 2013-12-18
       words: 1725
      flesch: 59
     summary: The problem The challenge is in the very fact that the sensitivity of this kind of experiment, as previously seen, improves only with the square root of the selected isotope mass, running time, decrease of background index and im- provement of energy resolution. Also background level (b) and energy resolution (ΔE) behaves as a square root.
    keywords: acta; background; beta; bolometer; decay; double; electrons; energy; experiment; fig; heat; light; lucifer; majorana; mass; nature; neutrino; neutrinoless; particles; phys; physics; possibility; problem; process; region; resolution; rev; value
       cache: ap-1991.pdf
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        item: #474 of 1243
          id: ap-1992
      author: Boller, Thomas
       title: EROSITA: AGN SCIENCE, BACKGROUND DETERMINATION, AND OPTICAL FOLLOW-UP SPECTROSCOPY
        date: 2013-12-18
       words: 3949
      flesch: 62
     summary: The expected background count rate has been compared with XMM-Newton observations, which might provide the best test for the X-ray back- ground for eROSITA around the Lagrangian point L2 before real X-ray background data will become available. Keywords: X-ray mission: new, spectroscopy.
    keywords: 4fs; accretion; agn; agns; background; black; boller; cluster; components; count; data; emission; energy; erosita; erosita background; fiber; follow; fraction; galaxies; growth; high; hole; instrument; large; mnras; multi; newton; nls1; objects; observations; observed; optical; particle; photon; physics; rates; ray; scale; science; simulated; simulator; sky; spectral; spectroscopic; strong; studies; study; survey; s−1; telescope; xmm
       cache: ap-1992.pdf
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        item: #475 of 1243
          id: ap-1993
      author: Hudec, René; Šimon, Vojtech; Hudec, Lukáš
       title: GRB INVESTIGATIONS BY ESA GAIA AND LOFT
        date: 2013-12-18
       words: 2966
      flesch: 61
     summary: 53 supplement/2013 GRB Investigations by ESA Gaia and LOFT the algorithms developed for the plates for Gaia. The ESA Gaia satellite to be launched in November 2013 will focus on high precision astrometry of stars and all objects down to limiting magnitude 20.
    keywords: afterglows; color; czech; data; detection; dispersion; emission; energy; esa; gaia; galaxy; gamma; grbs; high; hudec; important; loft; low; oas; objects; optical; phase; photometry; pixel; plates; possible; prism; range; ray; resolution; sources; spectral; spectroscopy; stars; studies; study; surveys; time
       cache: ap-1993.pdf
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        item: #476 of 1243
          id: ap-1994
      author: Maeda, Yoshitomo; Takahashi, Tadayuki; Mitsuda, Kazuhisa; Kelley, Richard
       title: THE ASTRO-H MISSION
        date: 2013-12-18
       words: 2074
      flesch: 69
     summary: SXI will consist of a telescope (SXT-I) and the focal plane detector “Soft X-ray Imager” [12] H. Tsunemi et al., “Soft X-ray imager (SXI) onboard ASTRO-H”, Proc. SPIE, 8443, submitted (2012)
    keywords: acta; arcmin; area; astro; band; compton; detector; effective; energy; gamma; hard; high; hxi; imager; imaging; instruments; kev; mission; polytechnica; proc; ray; resolution; sgd; soft; sources; spectrometer; spie; sxi; sxs; sxt; telescope
       cache: ap-1994.pdf
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        item: #477 of 1243
          id: ap-1996
      author: Yashin, I. I.; Ampilogov, N. V.; Astapov, I.I.; Barbashina, N.S.; Borog, V.V.; Dmitrieva, A.N.; Kokoulin, R.P.; Kompaniets, K.G.; Mannocchi, G.; Mikhailenko, A.S.; Petrukhin, A.A.; Saavedra, O.; Shutenko, V.V.; Trinchero, G.; Yakovleva, E.I.
       title: LARGE AREA HODOSCOPES FOR MUON DIAGNOSTICS OF HELIOSPHERE AND EARTH’S MAGNETOSPHERE
        date: 2013-12-18
       words: 2352
      flesch: 62
     summary: Keywords: cosmic rays, muons, muon hodoscope, angular variations of muon flux, solar, terrestrial connections, heliosphere, magnetosphere. To study muon flux variations, for every cell of the angular matrix the average number of muons (esti- mated during the preceding 24 hours and corrected for atmospheric pressure and temperature
    keywords: acta; analysis; angular; anisotropy; average; cosmic; counting; data; diagnostics; directions; earth; figure; flux; gse; heliosphere; hodoscopes; jul; local; magnetosphere; matrix; muon; n.s; polytechnica; processes; rate; rays; solar; time; uragan; variations; vector; wide; zenith
       cache: ap-1996.pdf
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        item: #478 of 1243
          id: ap-1998
      author: Bertaina, Mario; Ebisuzaki, Toshikazu; Galeotti, Piero; Kajino, Fumiyoshi
       title: THE JEM-EUSO MISSION
        date: 2013-12-18
       words: 2127
      flesch: 62
     summary: Introduction The Extreme Universe Space Observatory – EUSO is the first space mission devoted to exploring the Universe through the detection of the extreme energy (E > 50 EeV) cosmic rays (EECRs) and neutrinos [1– 5]; it looks downward from the International Space Station (ISS). The JEM-EUSO mission explores the origin of extreme energy cosmic rays (EECRs) above 50 EeV and explores the limits of fundamental physics, through observations of their arrival directions and energies.
    keywords: 32nd; arrival; atmosphere; case; clouds; collab; cosmic; eecrs; energies; energy; euso; experiment; exposure; extreme; figure; high; ibidem; icrc; jem; main; mission; nuclear; objectives; physics; proc; rays; scientific; shower; sources; space; surface; telescope
       cache: ap-1998.pdf
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        item: #479 of 1243
          id: ap-200
      author: John, J.
       title: Nonlinear Continuous System Identification by Means of Multiple Integration II
        date: 2001-01-01
       words: 3783
      flesch: 71
     summary: The differential equation for the system dynamics is � �e =Ri N t e �� � � �d d , (18) where e � � � is the induced voltage, � is the machine flux, N t d d � is the voltage induced by the change of the machine flux in the excitation winding, and Rie is the voltage drop on the resistance in the excitation circuit. i n i n � � � � � � 1 1 2 1u u � (1) and an output equation � � � �� � � � � �� �y t
    keywords: algebraic; continuous; corresponding; czech; d �; data; diagram; dynamo; e t; e �; equation; f t; fig; function; identification; input; integration; matrix; model; multiple; n t; nonlinear; output; parameters; period; program; r.*e./ �; space; state; structure; system; t t; t y; time; vector; � g; � y; � �
       cache: ap-200.pdf
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        item: #480 of 1243
          id: ap-2000
      author: Antonelli, Antonella
       title: THE NA62 EXPERIMENT AT CERN AND THE MEASUREMENT OF THE ULTRA-RARE DECAY K⁺→π⁺ v ̄v
        date: 2013-12-18
       words: 2052
      flesch: 67
     summary: [3] P. Valente et al., Nucl. [4] M. Fiorini et al., Nucl.
    keywords: angle; background; beam; branching; calorimeter; cern; cherenkov; counter; decay; experiment; gev; high; instrum; kaon; large; lav; level; meth; momentum; mrad; muon; na62; nucl; order; particle; photons; ratio; readout; rejection; resolution; rich; spectrometer; system; time; trigger; veto
       cache: ap-2000.pdf
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        item: #481 of 1243
          id: ap-2002
      author: March, Riccardo; Bellettini, Giovanni; Tauraso, Roberto; Dell’Agnello, Simone
       title: CONSTRAINING SPACETIME TORSION WITH THE MOON, MERCURY AND LAGEOS
        date: 2013-12-18
       words: 2775
      flesch: 64
     summary: Hence such a mission may yield an opportunity to improve of the constraints on torsion parameters. As a consequence, spacetime torsion would be observation- ally negligible in the solar system.
    keywords: acta; autoparallel; bodies; body; case; coordinates; earth; effect; estimates; general; geodetic; lageos; lense; mass; mercury; moon; new; parameters; perihelion; phys; precession; relativity; rev; roma; secular; solar; spacetime; system; tensor; test; theory; thirring; torsion; γνλµ
       cache: ap-2002.pdf
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        item: #482 of 1243
          id: ap-2003
      author: Garattini, M.; Dell’Agnello, S.; Currie, D.; Delle Monache, G. O.; Tibuzzi, M.; Patrizi, G.; Berardi, S.; Boni, A.; Cantone, C.; Itaglietta, N.; Lops, C.; Maiello, M.; Martini, M.; Vittori, R.; Bianco, G.; March, R.; Bellettini, G.; Tauraso, R.
       title: MOONLIGHT: A NEW LUNAR LASER RANGING RETROREFLECTOR INSTRUMENT
        date: 2013-12-17
       words: 2561
      flesch: 51
     summary: Since 1969 Lunar Laser Ranging (LLR) to the Apollo Cube Corner Reflector (CCR) arrays has supplied several significant tests of gravity: Geodetic Precession, the Strong and Weak Equivalence Principle (SEP, WEP), the Parametrized Post Newtonian (PPN) parameter β, the time change of the Gravitational constant (G), 1/r2 deviations and new gravitational theories beyond General Relativity (GR), like the unified braneworld theory (G. Dvali et al., 2003). Keywords: Lunar Laser Ranging, general relativity, gravitation, equivalence principle, geodetic precession, gravitational constant variation, PPN parameters, APOLLO station, International Lunar Network, Cube Corner Retroreflector.
    keywords: accuracy; acta; apollo; array; ccr; corner; currie; earth; ffdp; figure; frascati; generation; housing; infn; kind; laser; llr; lnf; lunar; lunar laser; maryland; measurements; moon; moonlight; nasa; new; optical; polytechnica; report; retroreflector; scf; science; shade; space; station; sun; temperature; test; thermal; time; university; way
       cache: ap-2003.pdf
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        item: #483 of 1243
          id: ap-2004
      author: Weidenhaupt, Klaus
       title: THE AUGER ENGINEERING RADIO ARRAY
        date: 2013-12-18
       words: 2592
      flesch: 56
     summary: Radio detector stations and calibration The hardware design of the autonomous radio-detector stations (RDSs) evolves from various prototype setups at the Pierre Auger Observatory. The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations.
    keywords: aera; air; array; auger; calibration; collaboration; cosmic; data; detection; detector; different; direction; electric; emission; energy; events; field; fig; geomagnetic; induced; lopes; measured; measurements; mhz; noise; observatory; pierre; pierre auger; polarization; primary; pulse; radio; radio emission; rays; reconstructed; self; showers; site; sources; stations
       cache: ap-2004.pdf
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        item: #484 of 1243
          id: ap-2007
      author: Federici, Memmo; Martino, Bruno L.
       title: A COMPUTER CLUSTER SYSTEM FOR PSEUDO-PARALLEL EXECUTION OF GEANT4 SERIAL APPLICATION
        date: 2013-12-18
       words: 1884
      flesch: 48
     summary: • Intensive reuse of serial simulation software. Simulation of the interactions between particles and matter in studies for developing X-rays detectors generally requires very long calculation times (up to several days or weeks).
    keywords: acta; applications; cluster; computer; computing; cores; data; days; design; environment; execution; factor; figure; file; geant4; graphical; interfaces; large; login; nodes; parallel; parameters; polytechnica; pseudo; run; serial; simulation; single; software; speed; system; time; user
       cache: ap-2007.pdf
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        item: #485 of 1243
          id: ap-2008
      author: Bressler, Smadar; Shaviv, Giora; Shaviv, Nir J.
       title: THE SENSITIVITY OF THE GREENHOUSE EFFECT TO CHANGES IN THE CONCENTRATION OF GASES IN PLANETARY ATMOSPHERES
        date: 2013-12-18
       words: 4945
      flesch: 64
     summary: Keywords: greenhouse effect, radiative transfer, earth like planets, surface temperature. The arrow marks the location of the Earth according to the Earth mean column density of water vapor as given by Crisp [2]. surface temperature.
    keywords: absorption; albedo; atmosphere; central; changes; concentration; depth; earth; effect; emission; energy; figure; flux; function; greenhouse; greenhouse effect; i∗,fir; like; limit; line; mean; model; molecular; optical; paradox; planet; planetary; problem; radiation; radiative; radiative transfer; range; saturation; shaviv; simpson; smadar; solution; specific; star; surface; surface temperature; temperature; transfer; tsurf; vapor; water; wavelength; windows; λrad; τfir; τvis
       cache: ap-2008.pdf
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        item: #486 of 1243
          id: ap-2010
      author: Antink, Christoph Hoog; Leonhardt, Steffen
       title: QUANTIFICATION OF RESPIRATORY SINUS ARRHYTHMIA WITH HIGH-FRAMERATE ELECTRICAL IMPEDANCE TOMOGRAPHY
        date: 2013-12-31
       words: 4168
      flesch: 66
     summary: One can observe that high frame rate EIT is capable of analyzing cardiac function with great precision. Respiratory rate according to protocol (RR), standard deviation of global impedance peaks (std(∆GI)) as well as the correlation coefficient (r(∆GI, ∆BBI)) of the change in GI and the change in BBI and the corresponding p-Value.
    keywords: acta; activity; analysis; bbi; bpm; calculated; cardiac; cardio; change; correlation; coupling; course; crs; data; delay; device; distribution; ecg; eit; electrical; electrode; error; figure; framerate; frequency; global; heart; high; impedance; known; mae; maximum; mean; measurements; medical; peak; pixel; polytechnica; rate; respiratory; rmse; rsa; run; seconds; signal; single; table; time; tomography; variability
       cache: ap-2010.pdf
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        item: #487 of 1243
          id: ap-2012
      author: Lavička, Hynek; Novotný, Jan
       title: EMPLOYMENT, PRODUCTION AND CONSUMPTION WITH RANDOM UPDATE: NON-EQUILIBRIUM STATIONARY STATE EQUATIONS
        date: 2013-12-31
       words: 4353
      flesch: 59
     summary: Introduction In recent years, the emergence of cheap computational power and progress in big data science has resulted in the appearance of multi-agent computational models in the economic and social sciences, see [4]. By contrasts, multi-agent computational models have to be perceived as complex systems, see [5–7], and this requires a specific set of tools.
    keywords: acta; activity; agent; approximation; citizens; companies; company; complex; computational; consumption; demand; discussion; dw′; economic; economy; employer; employment; equations; equilibrium; field; goods; hiring; interactions; linear; mean; micro; model; multi; non; number; p(c; p(e; paper; particular; phη; polytechnica; production; properties; random; respect; revenue; set; society; solution; state; stationary; step; system; time; turn; unemployed; university; variables; wage; wright
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        item: #488 of 1243
          id: ap-2014
      author: Böhm, Anna; Brüser, Christoph; Leonhardt, Steffen Leonhardt
       title: A NOVEL BCG SENSOR-ARRAY FOR UNOBTRUSIVE CARDIAC MONITORING
        date: 2013-12-31
       words: 3425
      flesch: 64
     summary: Raw BCG signal. However, optical sensors are prone to movement artifacts, as are other BCG sensors.
    keywords: algorithm; analog; array; artifacts; bcg; beat; bed; best; body; breath; brüser; cardiac; channel; detector; different; ecg; engineering; estimation; fig; figure; filter; heart; ieee; intervals; light; mattress; measurement; monitoring; multiple; optical; pass; positions; principle; prone; rate; results; sensor; setup; signal; subject; system; time; unobtrusive; vol
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        item: #489 of 1243
          id: ap-2015
      author: Frougny, Christiane; Klouda, Karel
       title: FACTOR AND PALINDROMIC COMPLEXITY OF THUE-MORSE’S AVATARS
        date: 2013-12-31
       words: 2587
      flesch: 84
     summary: Keywords: factor complexity, palindromic complexity, univoque numbers, Thue-Morse word. Factor complexity The following lemma points out the similarity between the languages of the words uTM and wa.
    keywords: a(1; complexity; factor; infinite; lemma; length; letters; math; morse; number; palindromic; putm; sequence; set; thue; unique; univoque; utm; word; εn+1
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        item: #490 of 1243
          id: ap-2017
      author: Jiroutová, Dita; Vokáč, Miroslav
       title: ANALYSIS OF THE ACCURACY OF FIBRE-OPTIC STRAIN GAUGES
        date: 2013-12-31
       words: 2534
      flesch: 59
     summary: The most widely used deformation sensors include resistance strain gauges, capacity and induc- tion displacement sensors, and video strain gauges. The spreads of the calibration constants show that it is necessary to calibrate SOFO strain gauges, and to determine their calibration constant, before they are used.
    keywords: accuracy; active; calibration; constants; experimental; fibre; figure; gauges; initial; initial stress; length; measurement; measuring; monitoring; optic; optic strain; prague; sensors; sofo; sofo fibre; strain; strain gauges; stress; stress length; structure; system; value
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        item: #491 of 1243
          id: ap-2018
      author: Mikeš, Jan; Kreibich, Ondrej; Neužil, Jan
       title: A LIGHTNING CONDUCTOR MONITORING SYSTEM BASED ON A WIRELESS SENSOR NETWORK
        date: 2013-12-31
       words: 3034
      flesch: 62
     summary: This paper presents ways to carry out wireless monitoring of lightning strikes on buildings and to deal with their impact on lightning conductors. Monitored building The proposed solution was developed by implement- ing a wireless sensor into a device used commercially for making a statistical record of lightning strikes on lightning conductors.
    keywords: acta; battery; buildings; catchment; conductor; counter; current; czech; data; direct; discharge; electrical; equipment; event; figure; fire; gateway; information; inspections; iris; jan; lightning; lightning strikes; mechanical; module; monitoring; network; node; online; polytechnica; power; prague; protection; republic; sensor; solution; standard; strikes; system; table; technology; usd; wireless; wsn; year; čsn
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        item: #492 of 1243
          id: ap-202
      author: Vognar, M.; Fišer, M.; Šimáně, Č.; Chvátil, D.
       title: Filling and Recycling Apparatus of a Cyclotron Target with Enriched Krypton for Production of Radiopharmaceuticals
        date: 2001-01-02
       words: 3222
      flesch: 62
     summary: The design and construction makes use of previous experience in the construction and operation of two analogue apparatuses for Xe124 high pressure gas targets, but major modifications have been incorporated, evoked by the different physical properties of Kr, by the character of the nuclear reaction, and by the demand for automation from the side of the end user. Keywords: generator, Kr gas target, 36K 82(p, 2n)
    keywords: apparatus; closed; cm3; container; dewar; fig; filling; flask; gas; gauge; heating; high; irradiation; liquid; main; minutes; mpa; nitrogen; power; pressure; production; pump; pumping; reaction; recycling; system; target; temperature; tube; tubing; turbomolecular; vacuum; valve; volume; working
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        item: #493 of 1243
          id: ap-2021
      author: Neusser, Zdenek; Valášek, Michael
       title: CONTROL OF THE DOUBLE INVERTED PENDULUM ON A CART USING THE NATURAL MOTION
        date: 2013-12-31
       words: 4161
      flesch: 60
     summary: Second, the system is stabilized and controlled exactly into the equilibrium at the upper position by NQR control. The input variable u is therefore plotted in the same figure, based on the acceleration of the cart (4) when using NQR control and based on the NQR algorithm in the vicinity of the unstable equilibrium.
    keywords: acceleration; approach; cart; control; coordinates; cos; damping; double; dynamics; eigenfrequencies; energy; equations; equilibrium; figure; final; input; inverted; left; mechanical; mechanism; motion; natural; nonlinear; nqr; pendulum; position; right; second; sin; swing; system; time; underactuated; upper; valášek
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        item: #494 of 1243
          id: ap-2022
      author: Patel, Rachana U.; Deheri, G. M.
       title: EFFECT OF SLIP VELOCITY ON THE PERFORMANCE OF A SHORT BEARING LUBRICATED WITH A MAGNETIC FLUID
        date: 2013-12-31
       words: 2854
      flesch: 65
     summary: Keywords: short bearing, magnetic fluid, slip velocity, load carrying capacity. Results and Discussion Equations (6) and (8), respectively, present the varia- tion of non-dimensional pressure distribution and load carrying capacity, while the frictional force is deter- mined from Equation (9).
    keywords: aspect; bearing; bhat; capacity; deheri; dimensional; effect; field; figure; fluid; friction; hydrodynamic; load; lubricant; lubrication; magnetic; non; patel; performance; porous; pressure; ratio; respect; short; slider; slip; values; variation; velocity
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        item: #495 of 1243
          id: ap-2024
      author: Pomprapa, Anake; Misgeld, Berno; Sorgato, Verónica; Stollenwerk, André; Walter, Marian; Leonhardt, Steffen
       title: ROBUST CONTROL OF END-TIDAL CO₂ USING THE H∞ LOOP-SHAPING APPROACH
        date: 2013-12-31
       words: 4274
      flesch: 57
     summary: [s] e tC O 2 [ m m H g ] H loop-shaping controller for Hammerstein model ∞ -10-20 Figure 6. Nonlinear Hammerstein model Providing a representation of signal flow using a block- oriented structure, the Hammerstein model comprises a static nonlinearity N
    keywords: acta; affine; algorithm; approach; block; closed; control; controller; data; design; end; etco2; evaluation; figure; hammerstein; human; identification; input; linear; loop; lung; mechanical; mmhg; model; nonlinear; nonlinearity; order; output; paco2; parameters; patients; performance; plant; polytechnica; pressure; range; respiratory; response; results; robust; shaping; simulation; singular; state; static; steady; structure; subject; system; tidal; time; uncertainty; value; ventilation; volunteer; y(k; y(ko
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        item: #496 of 1243
          id: ap-2028
      author: Vlček, Petr; Skočilas, Jan; Jirout, Tomáš
       title: CFD SIMULATION OF A STIRRED DISHED BOTTOM VESSEL
        date: 2013-12-31
       words: 3309
      flesch: 60
     summary: The objectives of the paper are to determine complex dimensionless characteristics — power number and impeller flow rate number — by carrying out investigations of the velocity field within the stirred vessel using a simulation of the equipment. This study deals with simulation of the flow in stirred vessels.
    keywords: accuracy; characteristics; comparison; contours; curved; cut; data; deviation; discretization; equipment; experimental; figure; flow; geometry; impeller; impeller flow; magnitude; model; number; order; order accuracy; power; rate; results; rsm; second; second order; simulation; speed; stirred; system; table; turbulence; unbaffled; unbaffled vessel; velocity; vessel
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        item: #497 of 1243
          id: ap-2030
      author: Wirth, Ulrich; Shirali, Nuri; Křístek, Vladimír; Kurth, Helmut
       title: HYBRID SHEARWALL SYSTEM — SHEAR STRENGTH AT THE INTERFACE CONNECTION
        date: 2013-12-31
       words: 4619
      flesch: 55
     summary: The hybrid shear-wall system consists of typical reinforced concrete shear walls with composite edge members or flanges. In addi- tion, the failure of reinforced concrete shear walls has been found to be caused by local failure of the edge- member columns (flanges).
    keywords: acta; alternating; anchor; anchor bars; anchorage; arrangement; bars; behavior; column; composite; concrete; connection; construction; cyclic; design; different; displacement; edge; end; figure; horizontal; hybrid; interface; layout; load; long; member; model; panel; polytechnica; possible; reinforcement; resistance; response; results; scale; shear; shearwall; slip; specimen; steel; stirrups; straight; structural; study; system; test; test specimen; tube; typical; view; vol; wall
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        item: #498 of 1243
          id: ap-2035
      author: Pěnička, Michal; Hoffman, Pavel; Fořt, Ivan
       title: STIRRED FLUIDIZED-BED DRYER OF REGENERATED ION EXCHANGER PARTICLES
        date: 2014-06-27
       words: 5181
      flesch: 67
     summary: This paper describes the intensification of the fluidized-bed drying process for regenerated spherical-shape ion exchanger particles in batch mode, achieved by a mechanical stirrer in the fluidized bed layer of dried particles. The drying rate for the first period of fluidized-bed drying is determined according to formula (10), where mS represents dry material mass and As12 is the total area of dried particles determined using formulas (11), (12), (13) and (9) for the studied periods.
    keywords: air; bed; bed layer; chamber; czech; density; determined; diameter; dryer; drying; effect; equation; exchanger; fig; fluidization; fluidized; fluidized bed; humidity; initial; ion; layer; layer period; mass; material; mean; moisture; m−2; number; particle diameter; particles; period; point; porosity; porous; process; rate; regenerated; state; stirrer; surface; s−1; temperature; time; total; uab; value; velocity; volume; water; wet
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        item: #499 of 1243
          id: ap-2038
      author: Beniak, Juraj; Križan, Peter; Matúš, Miloš; Kováčová, Monika
       title: THE OPERATING LOAD OF A DISINTEGRATION MACHINE
        date: 2014-02-28
       words: 2238
      flesch: 61
     summary: The significance of the monitored parameters that influence the torque moment needed to disintegrate material samples has been investigated. Figures 3 and 4 show the relation of the measured values of torque Mk to the surface area of the sam- ple material Sm.
    keywords: acta; area; cross; disintegrative; estimation; fig; material; matrix; measured; parameter; polytechnica; relation; sample; section; surface; surface area; thickness; torque; uncertainty; values; wedge; width
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        item: #500 of 1243
          id: ap-204
      author: Elminir, Hamdy K.; Benda, V.; Kudláček, I.
       title: Actual Optical and Thermal Performance of Photovoltaic Modules
        date: 2001-01-02
       words: 8805
      flesch: 59
     summary: In general this can be expressed as [11]: � �� �Q F T Trad s m i, j, k� � �� � � 4 4 . cos cos cos cos sin sin� � � � � ��Z � � (3) The geometric factor Rb, the ratio of beam radiation on the tilted surface, Ib, T to that on a horizontal surface at any time, can be calculated exactly by appropriate use of Equation 1.
    keywords: acta; adobe; angle; beam; cell; circuit; circumsolar; collector; components; conditions; constant �; cos cos; current; d �; data; day; diffuse; diffuse radiation; direction; distribution; effect; ei �; energy; equation; factor; false; fig; ground; hay; heat; horizontal; hourly; incidence; incident; inclined; increase; index; inside; interface; irradiance; isotropic; klucher; layer; matrix; meshes; model; module; oi �; optical; parameters; performance; photovoltaic; plane; polytechnica; radiation; radiation incident; reflection; results; short; silicon; sin; sky; solar; solar radiation; south; sun; surface; t h; t k; t t; temperature; thermal; tilted; total; transfer; transmission; true; z �; � cos; � g
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        item: #501 of 1243
          id: ap-2044
      author: Horvat, Frantisek; Cekan, Michal; Soltes, Lukas; Biath, Peter; Hucko, Branislav; Jedinak, Igor
       title: CURRENT WAYS TO HARVEST ENERGY USING A COMPUTER MOUSE
        date: 2014-02-28
       words: 1584
      flesch: 55
     summary: Possible energy harvesting systems, PVF2 – piezomaterial, LT – circuit required for EH, C – ca- pacitor, B – battery, S – input to mouse system. Studies have already been made for the potential application of EH circuits based on a piezomaterial, and have shown the possibility of applying it for battery management of cardiostimulators [2].
    keywords: activities; average; battery; beam; body; button; circuit; clicks; computer; energy; figure; frequency; gaming; harvesting; hour; interactions; mouse; piezomaterial; pvf2; results; system; tip; work
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        item: #502 of 1243
          id: ap-2045
      author: Hrnčířová, Michaela; Špiláček, Michal; Pospíšil, Jiří
       title: SIZE ANALYSIS OF SOLID PARTICLES AT THE EXPERIMENTAL DEVICE FOR MULTI-STAGE BIOMASS COMBUSTION
        date: 2014-02-28
       words: 1948
      flesch: 66
     summary: The device utilizes laser diffraction for particle size analysis. The laser analyser shows the results on data sheets, where the frequency of the corresponding range of particle sizes to the whole sample is displayed.
    keywords: acta; analysis; ash; beam; biomass; chamber; combustion; cyclone; device; diffraction; distribution; figure; frequency; gasifying; heater; laser; method; particles; pipe; polytechnica; results; sample; separator; size; solid; table; water
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        item: #503 of 1243
          id: ap-2046
      author: Kováčová, Monika; Matúš, Miloš; Križan, Peter; Beniak, Juraj
       title: DESIGN THEORY FOR THE PRESSING CHAMBER IN THE SOLID BIOFUEL PRODUCTION PROCESS
        date: 2014-02-28
       words: 3598
      flesch: 68
     summary: Forces in cylindrical pressing chamber. 68-76 [6] KRIŽAN, P. – ŠOOŠ, Ľ. – MATÚŠ, M.: Optimisation of briquetting machine pressing chamber geometry.
    keywords: 4µλ; briquettes; case; chamber; cone; conical; cos; cylinder; cylindrical; d22; figure; force; geometry; influence; material; mathematical; outgoing; pa(x; pap; parameters; pressing; pressure; process; quality; structural
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        item: #504 of 1243
          id: ap-2051
      author: Lisý, Martin; Baláš, Marek; Špiláček, Michal; Skála, Zdenek
       title: TECHNICAL AND ECONOMIC OPTIMIZATION OF COGENERATION TECHNOLOGY USING COMBUSTION AND GASIFICATION
        date: 2014-02-28
       words: 4988
      flesch: 64
     summary: 88–95 51 http://www.tzb-info.cz/2834-orc-technologie-v-realizaci-ii-trhove-sviny-srovnani http://www.tzb-info.cz/2834-orc-technologie-v-realizaci-ii-trhove-sviny-srovnani Acta Polytechnica 54(1):42–51, 2014 1 Introduction — microcogeneration 2 Design and balance calculations for a microcogeneration unit 2.1 Partial evaluation of basic solutions 2.2 Specification and extension of the designed solutions 2.3 Overall evaluation and a comparison of the solutions 3 Economic comparison of the proposed solutions 4 Overall evaluation and a comparison between the options 5 Conclusions Acknowledgements References A decrease in flue gas temperature was achieved via higher amounts of excess air during the combustion process; however, this requires bigger dimensions of the exchanger.
    keywords: acta; air; baláš; basic; biomass; boiler; calculations; cogeneration; combustion; comparison; costs; dependence; design; economic; efficiency; electrical; energy; exchanger; exhauster; figure; flow; flue; flue gas; fuel; gas; gasification; heat; higher; investment; microcogeneration; optimization; overall; payback; period; polytechnica; pressure; price; results; solutions; table; technical; technology; temperature; turbine; turbo; unit
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        item: #505 of 1243
          id: ap-2055
      author: Onderová, Iveta; Kolláth, Ludovít; Ploskuňáková, Lucia
       title: EXPERIMENTAL VERIFICATION OF THE STRUCTURAL AND TECHNOLOGICAL PARAMETERS OF THE PKS
        date: 2014-02-28
       words: 2215
      flesch: 47
     summary: Unidirectional position repeatability is calculated as follows: RP = l̄ + 3Sl, where l̄ = 1 n n∑ j=1 lj , lj = √ (xj − x̄)2 + (yj − ȳ)2 The parameters of accuracy and position repeata- 60 vol.
    keywords: accuracy; calculated; carrier; central; coordinates; cylinder; figure; j=1; joint; kinematic; location; measurement; mechanical; motion; orientation; parallel; parameters; platform; position; positioning; positioning accuracy; programmed; repeatability; rods; structure; telescopic; tools; tricept; unidirectional; unidirectional positioning
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        item: #506 of 1243
          id: ap-2057
      author: Onderová, Iveta; Šooš, Lubomír
       title: ANALYSIS OF PARAMETERS AFFECTING THE QUALITY OF A CUTTING MACHINE
        date: 2014-02-28
       words: 1958
      flesch: 46
     summary: Keywords: cutting machines, quality, positioning accuracy, repeatable positioning accuracy. Investigations of accuracy and repeatable positioning accuracy were essential for the research presented in this paper.
    keywords: accuracy; analysis; axis; cutting; cutting machine; design; error; evaluation; experiment; figure; linear; machine; measured; measurements; measuring; parameters; portal; positioning; positioning accuracy; positions; quality; requirements; table; technology; value; working; y axis
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        item: #507 of 1243
          id: ap-2059
      author: Štefanica, Jiří; Hrdlička, Jan
       title: NOx PREDICTION FOR FBC BOILERS USING EMPIRICAL MODELS
        date: 2014-02-28
       words: 3174
      flesch: 56
     summary: Authors of NOX prediction models for FBC usually combine a kinetic modelling approach with FBC hydrodynamic models. Recently used kinetic prediction models for FBC boilers are overly complex and require large computing capacity.
    keywords: air; approach; bed; biomass; boilers; boleslav; chpp; coal; combustion; concentration; conditions; constant; content; control; data; emissions; empirical; engineering; fbc; figure; formation; fuel; hard; ibler; input; lignite; low; method; mladá; model; modified; nitrogen; nox; parameters; pcc; pohl; ppm; prediction; reliability; results; steam; table; temperature
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        item: #508 of 1243
          id: ap-206
      author: Hošková, Š.; Kapičková, O.; Trtík, K.; Vodák, F.
       title: Effect of Thermal Cycling on the Strength and Texture of Concrete for Nuclear Safety Structures
        date: 2001-01-02
       words: 2027
      flesch: 55
     summary: These are the only similar factors: TEMELÍN concrete belongs to class B 40, while PENLY concrete is prepared as so-called high-resist- ance concrete (the uniaxial compression strength is higher than 60 MPa) The texture of concrete is not constant in time.
    keywords: adobe; cement; climatic; composition; compressive; concrete; cycles; cycling; czech; dependence; false; fig; number; paste; pdf; penly; pores; process; republic; results; samples; specific; strength; structure; table; temelín; texture; thermal; total; true; volume; water
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        item: #509 of 1243
          id: ap-2064
      author: Ramírez, José Luis; Rubiano, Gustavo Nevardo
       title: BIPERIODIC FIBONACCI WORD AND ITS FRACTAL CURVE
        date: 2015-02-28
       words: 5694
      flesch: 87
     summary: Keywords: Fibonacci word, biperiodic Fibonacci word, biperiodic Fibonacci curve. [3] Berstel, J., Fibonacci words-a survey, in: G. Rosenberg, A. Salomaa (Eds.), The Book of L, Springer, Berlin, 1986, 11–26.
    keywords: a(10; b)(0; b)n; biperiodic; biperiodic fibonacci; clear; curve; definition; drawing; f(a; fa(a; fibonacci; fibonacci word; fractal; infinite; integer; length; lim; nth; number; n−1; n−2; n−3)f(a; odd; prefix; proof; properties; proposition; ramírez; rubiano; rule; sequence; similar; sturmian; symbols; table; theorem; word; σ(a; φ(f(a
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        item: #510 of 1243
          id: ap-2067
      author: Kratky, Lukas; Jirout, Tomáš
       title: IMPROVING SPECIFIC POWER CONSUMPTION FOR MECHANICAL MIXING OF THE FEEDSTOCK IN A BIOGAS FERMENTER BY MECHANICAL DISINTEGRATION OF LIGNOCELLULOSE BIOMASS
        date: 2014-10-31
       words: 4389
      flesch: 59
     summary: Keywords: fermenter, lignocellulose biomass, mixing, specific power consumption, wheat straw. Dependence of power consumption on impeller speed.
    keywords: batch; biogas; biomass; consumption; diameter; disintegration; experiments; fermenter; fig; flow; fluid; height; homogeneity; hydrated; hydration; impeller; lignocellulose; liquid; mechanical; milled; mixing; number; particles; power; power consumption; properties; regime; rotational; specific; specific power; speed; straw; sufficient; surface; suspension; system; torque; untreated; untreated straw; value; vessel; water; wheat; wheat straw
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        item: #511 of 1243
          id: ap-2070
      author: Loufek, Jan; Královcová, Jiřina
       title: SIMULATION OF RADIATIVE HEAT FLUX DISTRIBUTION UNDER AN INFRARED HEAT EMITTER
        date: 2015-02-28
       words: 4006
      flesch: 54
     summary: Keywords: radiative heat transfer; simulations; optimization; heat flux distribution. This tool is helpful in providing heat flux distribution functions under various configurations (heater reflector shape, heated surface shape and inclination, distance) and under various input parameters (temperature, emissivity).
    keywords: algorithm; body; bounding; calibration; case; characteristics; design; distribution; emissivity; emitter; energy; factor; figure; flux; flux distribution; heat; heat flux; heat transfer; heated; heated surface; heaters; implemented; infrared; input; line; measured; model; optimization; particular; radiation; radiative; radiative heat; real; reflector; results; set; shape; shell; simulated; simulation; surface; system; table; temperature; transfer; values; view
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        item: #512 of 1243
          id: ap-2073
      author: Bagchi, Bijan; Modak, Subhrajit; Panigrahi, Prasanta K.
       title: TRACKING DOWN LOCALIZED MODES IN PT-SYMMETRIC HAMILTONIANS UNDER THE INFLUENCE OF A COMPETING NONLINEARITY
        date: 2014-04-30
       words: 3650
      flesch: 67
     summary: Class II solutions On the other hand, if we choose the extended Rosen- Morse potential to have the form V (x) = −a(a The figure at the right corresponds to the evaluation of Class II solution under the same parametrizations.
    keywords: christodoulides; class; complex; corresponding; distribution; doi; eigenmode; eigenvalues; equation; figure; imaginary; index; lett; modes; nonlinear; nonlinearity; optical; parameters; phys; potential; propagation; real; rev; solutions; spectrum; symmetric; term; time; unstable; −0.1; −0.2
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        item: #513 of 1243
          id: ap-2074
      author: Bishop, Raymond F.; Znojil, Miloslav
       title: THE COUPLED-CLUSTER APPROACH TO QUANTUM MANY-BODY PROBLEM IN A THREE-HILBERT-SPACE REINTERPRETATION
        date: 2014-04-30
       words: 6606
      flesch: 56
     summary: Sub- sequently, in section 3 an overall review of the key ideas of CCM constructions will be recalled, and their reinterpretation within the general THS scheme will be described. 2.2.1 Crypto-Hermitian IBM method 2.2.2 PT-symmetric models 2.2.3 Towards the complex energy spectra. 3 THS interpretation of CCM constructions 3.1 Brief introduction to CCM constructions 3.2 CCM–THS correspondence 4 Discussion 4.1 A CCM–THS fusion? 4.2 Towards the infinite-dimensional Hilbert spaces 4.3 Outlook Acknowledgements References
    keywords: abstract; acta; adjoint; alternative; approach; approximation; arponen; bishop; body; c+; case; ccm; cluster; complex; complicated; construction; conventions; creation; different; doi; effective; energy; exp; extended; form; formalism; framework; functions; general; ground; h(f; h(p; h(s; hamiltonian; hermitian; hermiticity; hilbert; hilbert space; ibm; initial; introduction; key; known; mappings; mechanics; method; microscopic; model; multi; non; notation; operator; paper; phase; phys; physical; physics; polytechnica; practical; present; problem; quantum; question; representation; respective; review; schrödinger; self; set; simplification; space; state; systems; table; theory; ths; time; unitary; use; variational; wave; znojil
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        item: #514 of 1243
          id: ap-2076
      author: Borisov, Denis
       title: EIGENVALUE COLLISION FOR PT-SYMMETRIC WAVEGUIDE
        date: 2014-04-30
       words: 4584
      flesch: 81
     summary: Assume that the equation (Hα −λ0)φ0 = ψ0 (1.8) is solvable and there exists a solution satisfying (φ0,T ψ0)L2(Ω) 6= 0, (φ0,ψ0)L2(Ω) = 0. These eigenvalues are holomorphic w.r.t. ε and the first terms of their Taylor series are λ±ε = λ0 + ελ ± 1 + O(ε 2), λ±1
    keywords: borisov; collision; complex; doi; dx1; eigenvalues; equation; follows; functions; hermitian; holomorphic; identity; l2(ω; lemma; main; multiplicity; non; o(ε; operator; phenomenon; physics; polytechnica; proof; real; results; simple; small; solvable; symmetric; theorem; w.r.t; α(x1; ψ0)l2(ω; ∂x2
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        item: #515 of 1243
          id: ap-2077
      author: Esina, Anna I.; Shafarevich, Andrei I.
       title: SEMICLASSICAL ASYMPTOTICS OF EIGENVALUES FOR NON-SELFADJOINT OPERATORS AND QUANTIZATION CONDITIONS ON RIEMANN SURFACES
        date: 2014-04-30
       words: 3476
      flesch: 61
     summary: doi: 10.4213/im399 [16] A. V. D’yachenko, A. A. Shkalikov. [19] V. I. Pokotilo, A. A. Shkalikov.
    keywords: a. a.; adjoint; asymptotics; behavior; case; complex; conditions; corresponding; cycles; different; dimensional; doi; eigenvalues; equation; form; graph; induction; integer; magnetic; maslov; math; mechanics; nonself; operator; points; potential; problem; quantization; remark; riemann; schrödinger; semiclassical; shafarevich; sommerfeld; spectral; spectrum; sphere; surface; theory; torus
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        item: #516 of 1243
          id: ap-2078
      author: Eleuch, Hichem; Rotter, Ingrid
       title: EXCEPTIONAL POINTS IN OPEN AND PT-SYMMETRIC SYSTEMS
        date: 2014-04-30
       words: 5878
      flesch: 66
     summary: Exceptional points (EPs) determine the dynamics of open quantum systems and cause also PT symmetry breaking in PT symmetric systems. Recent studies have shown the important role the singular points in the continuum play for the dynam- ics of open quantum systems, see, e.g., the review [10].
    keywords: 4|w|2; breaking; case; complex; coupling; crossing; discrete; eigenfunctions; eigenvalues; energy; environment; eps; equation; exceptional; h(2; hamiltonian; hermitian; imaginary; level; matrix; means; neighborhood; non; open; open quantum; optical; parameter; phase; phys; physics; points; pt symmetric; quantum; quantum systems; real; results; rotter; states; symmetric; symmetry; system; wavefunctions; widths
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        item: #517 of 1243
          id: ap-208
      author: Kalousková, M.; Novotná, E.; Šejnoha, J.
       title: Reliability - Based Designof Precast Buildings
        date: 2001-01-02
       words: 3569
      flesch: 59
     summary: An expression for the failure probability can be found in [6] in this form � �� � � � � �P g Expanding the function g into the Taylor series up to the second order terms and introducing certain orthogonal transformations, the failure surface can be written as: � �� �g U Un
    keywords: acta; adobe; analysis; b b; b c; beam; c c; code; czech; elements; failure; false; fig; house; http://ctn.cvut.cz/ap/; index; inner; joints; loading; methods; model; numerical; panels; polytechnica; precast; properties; publishing; random; regions; reliability; second; stiffness; structure; subgrade; technical; temperature; true; truss; university; vertical; vol; � �
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        item: #518 of 1243
          id: ap-2081
      author: Fernández, Francisco M.
       title: ON THE REAL MATRIX REPRESENTATION OF PT-SYMMETRIC OPERATORS
        date: 2014-04-30
       words: 2262
      flesch: 65
     summary: Âan|n〉 = an|n〉 + a∗nÂ|n〉 (17) which already satisfies Â|nA〉 = |nA〉. We can construct the basis set {|n,σ〉} from any orthonormal basis set {|n〉} in the following way |n,σ〉 = Nn,σQ̂σ|n〉, Q̂σ = 1 2 ( 1 + σ ) (16) where Nn,σ is a suitable normalization factor.
    keywords: antiunitary; basis; bender; case; complex; equation; general; hamiltonians; harmonic; hermitian; matrix; non; operator; oscillator; porter; real; representation; satisfies; section; set; symmetry; |na
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        item: #519 of 1243
          id: ap-2083
      author: Haag, Daniel; Cartarius, Holger; Wunner, Günter
       title: A BOSE-EINSTEIN CONDENSATE WITH PT-SYMMETRIC DOUBLE-DELTA FUNCTION LOSS AND GAIN IN A HARMONIC TRAP: A TEST OF RIGOROUS ESTIMATES
        date: 2014-04-30
       words: 4248
      flesch: 63
     summary: A paper in which PT -symmetric point interactions were studied embedded in an external potential is 116 http://dx.doi.org/10.14311/AP.2014.54.0116 http://ojs.cvut.cz/ojs/index.php/ap vol. Bound states of n-dimensional harmonic oscillator decorated with dirac delta functions.
    keywords: -symmetric; bose; branch; case; complex; condensate; delta; delta functions; different; doi; double; eigenvalues; einstein; estimates; excited; figure; functions; harmonic; hermiticity; imaginary; levels; loss; mityagin; nonlinearity; oscillator; parts; perturbation; phys; point; potential; real; shifts; shrink; siegl; spectrum; state; strength; unperturbed; wave
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        item: #520 of 1243
          id: ap-2085
      author: Jones, H. F.
       title: THE FLOQUET METHOD FOR PT-SYMMETRIC PERIODIC POTENTIALS
        date: 2014-04-30
       words: 1426
      flesch: 76
     summary: This phenomenon is particularly interesting for the case of periodic PT -symmetric potentials, where unusual band structures may occur [7, 8]. By the general theory of PT -symmetric quantum systems, their energy levels are either real or occur in complex-conjugate pairs, which implies that the secular equation must be real.
    keywords: doi; equation; floquet; lett; periodic; phys; potentials; real; rev; solutions; u1(x; u1(π; u2(x; u′2(π
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        item: #521 of 1243
          id: ap-2086
      author: Kibler, Maurice R.
       title: ON TWO WAYS TO LOOK FOR MUTUALLY UNBIASED BASES
        date: 2014-04-30
       words: 2229
      flesch: 74
     summary: Concluding remarks The equivalence discussed in this work of the two ways of looking at MUBs amounts in some sense to the equivalence between the search for equiangular lines in Cd and for equiangular vectors in Cd 2 (cf. Equiangular lines in Cd correspond to |〈aα|bβ〉| = 1 √ d for a 6= b (26) while equiangular vectors in Cd 2 correspond to w(aα) · w(bβ) = 1 d for a 6= b (27) where the w(aα)·w(bβ) inner product in Cd 2 is defined as w(aα) · w(bβ) = d−1∑ p=0 d−1∑ q=0 wpq(aα)wpq(bβ) (28) Observe that the modulus disappears and the 1/ √ d factor is replaced by 1/d when passing from (26) to (27).
    keywords: bases; components; d(d; dimension; doi; d−1∑; equiangular; mubs; operator; q=0; quantum; satisfying; search; sic; unbiased; vectors; w(aα; wpq(aα; |aα; βδa
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        item: #522 of 1243
          id: ap-2088
      author: Leach, P. G. L.
       title: DIRAC AND HAMILTON
        date: 2014-04-30
       words: 1906
      flesch: 60
     summary: Dirac devised his theory of Quantum Mechanics and recognised that his operators resembled the canonical coordinates of Hamiltonian Mechanics. Now Hamiltonian Mechanics provided a lodestone to the new Quantum Mechanics. 2.
    keywords: classical; construct; coordinates; corresponding; dirac; equation; generalised; hamiltonian; harmonic; lagrangians; mechanics; motion; newtonian; noether; operators; oscillator; quantum; schrödinger; simple; symmetries; theory; university
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        item: #523 of 1243
          id: ap-2090
      author: Lee, M. Howard
       title: CAN ONE REALLY STUDY CHAOS ANALYTICALLY?
        date: 2014-04-30
       words: 2803
      flesch: 78
     summary: Conclusion: aleph cycle and chaotic trajectories Phys. 57, 617 (1985) doi: 10.1103/RevModPhys.57.617 132 http://dx.doi.org/10.1016/0370-1573(82)90057-6 http://dx.doi.org/10.1103/PhysRevLett.87.250601 http://dx.doi.org/10.1103/PhysRevLett.98.110403 http://dx.doi.org/10.1103/RevModPhys.57.617 Acta Polytechnica 54(2):130–132, 2014 1 Introduction 2 One-dimensional continuous map of real numbers in an interval 3 Logistic map 4 Solving the sextic equation: preliminaries 5 Solving the sextic equation: an internal degree of freedom 6 Conclusion: aleph cycle and chaotic trajectories Acknowledgements References
    keywords: acta; chaos; chaotic; cycle; domain; equation; finite; fixed; interval; logistic; map; numbers; phys; points; q(t; real; roots; set; sextic; sharkovskii; theorem
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        item: #524 of 1243
          id: ap-2092
      author: Löhle, Andreas; Cartarius, Holger; Haag, Daniel; Dast, Dennis; Main, Jörg; Wunner, Günter Wunner
       title: STABILITY OF BOSE-EINSTEIN CONDENSATES IN A PT-SYMMETRIC DOUBLE-δ POTENTIAL CLOSE TO BRANCH POINTS
        date: 2014-04-30
       words: 4661
      flesch: 67
     summary: The nonlinearity ∝ |ψ(x, t)|2 of the Gross-Pitaevskii equation introduces new interesting properties [8–17] such as PT broken states which appear for gain/loss contributions lower than those at which the corre- sponding PT symmetric states vanish. 133 http://dx.doi.org/10.14311/AP.2014.54.0133 http://ojs.cvut.cz/ojs/index.php/ap A. Löhle, H. Cartarius, D. Haag et al.
    keywords: bifurcation; bogoliubov; bose; change; complex; condensate; discrepancy; doi; double; eigenvalue; einstein; equation; et al; field; figure; function; gain; gennes; gross; ground; hermitian; lett; loss; mean; nonlinearity; norm; phys; pitaevskii; pitchfork; point; potential; pt symmetric; real; rev; stability; states; stationary; symmetric; system; values; wave
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        item: #525 of 1243
          id: ap-2095
      author: Mostafazadeh, Ali
       title: A DIFFERENTIAL INTEGRABILITY CONDITION FOR TWO-DIMENSIONAL HAMILTONIAN SYSTEMS
        date: 2014-04-30
       words: 1645
      flesch: 73
     summary: The study of integrable Hamiltonian systems has been a subject of active research since the nineteenth century. References [1] R. S. Kaushal and H. J. Korsch, “Some remarks on complex Hamiltonian systems,” Phys.
    keywords: condition; constant; equations; form; hamiltonian; integrability; integrable; system; theorem; ∂2h; ∂2u
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        item: #526 of 1243
          id: ap-2097
      author: Ohya, Satoshi
       title: A SIMPLE DERIVATION OF FINITE-TEMPERATURE CFT CORRELATORS FROM THE BTZ BLACK HOLE
        date: 2014-04-30
       words: 5466
      flesch: 67
     summary: −1/R2): AdS3 = { (X−1,X0,X1,X2) ∈ R2,2 ∣∣ − (X−1)2 − (X0)2 + (X1)2 + (X2)2 = −1 } . As is well-known, the AdS3 spacetime (6) has an alternative equivalent description as the SL(2,R) group manifold defined as follows: AdS3 = { X = ( X−1+X2 X1−X0 X1+X0 X−1−X2 )
    keywords: ads3; ads3 black; advanced; algebra; basis; black; black hole; boundary; btz; cft; cft2; conformal; coordinate; correlators; correspondence; cosh; doi; equations; field; finite; following; functions; generators; group; g∆(kl; hep; hole; identification; kr〉0; ladder; lie; momentum; noncompact; note; operators; paper; periodic; phys; point; recurrence; relations; retarded; scalar; simple; sinh; sl(2,r)l; so(1; so(2; space; spacetime; symmetry; temperature; theory; time; translation
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        item: #527 of 1243
          id: ap-2099
      author: Prešnajder, Peter; Gáliková, Veronika; Kováčik, Samuel
       title: LAPLACE-RUNGE-LENZ VECTOR IN QUANTUM MECHANICS IN NONCOMMUTATIVE SPACE
        date: 2014-04-30
       words: 5108
      flesch: 68
     summary: NC operators revisited Now we rewrite the Hamiltonian, the velocity operator and the NC LRL vector in terms of the new auxiliary operators which have been introduced. The Hilbert space of wave functions in NC space and the NC generalizations of important operators (Hamil- tonian, angular momentum, coordinate and velocity) are introduced.
    keywords: analog; angular; âα; case; casimir; commutator; components; considered; corresponding; coulomb; dynamical; energies; energy; equation; functions; group; hamiltonian; laplace; lrl; l̂i; mechanics; momentum; ncqm; noncommutative; operators; paper; potential; problem; quantum; relations; relevant; representations; schrödinger; so(3; so(4; space; standard; states; symmetry; terms; vector; velocity; wave; way; −2e
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        item: #528 of 1243
          id: ap-210
      author: Tesař, V.
       title: Two-equation Turbulence Model Similarity Solution of the Axisymmetric Fluid Jet
        date: 2001-01-02
       words: 10259
      flesch: 57
     summary: (13) as � � e w e w e e w e X f f f t t f t f t � � � � � � � � � � � � � � 1 1 2 2 2 2 2 2 1 2 2 2 1 � � � � � . (20): � � � � t t � � � � � � � � � � � � � � 2 2 2 2 1 2 2 2 1 22 j mX X j j j mX X .
    keywords: acta; analysis; anomaly; approach; assumption; ax �; axial; axis; axisymmetric; basic; boundary; c �; case; coefficient; conditions; constants; czech; data; deta*fn; diameter; dissipation; distance; distribution; earlier; effect; energy; eps; equation; equation model; evaluated; experimental; f �; fact; false; fig; flow; fluctuation; following; gradient; growth; hand; house; http://ctn.cvut.cz/ap/; integration; jet; jets; length; line; mean; model; nozzle; operator; ordinate; plane; polytechnica; possible; praha; prandtl; present; present solution; print; problem; profile; program; proper; publishing; radial; rate; relative; results; scale; sensitivity; similarity; solution; solved; spatial; spreading; standard; starting; technical; tesař; time; transformation; transformed; transport; transverse; true; turbulence; university; values; variables; velocity; viscosity; vol; � term
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        item: #529 of 1243
          id: ap-2101
      author: Turgut, Osman Teoman Turgut Teoman; Eröncel, Cem
       title: EXACT RENORMALIZATION GROUP FOR POINT INTERACTIONS
        date: 2014-04-30
       words: 8156
      flesch: 79
     summary: Then φ̃(Λ,ξ) becomes φ̃(Λ,ξ) = 2 π2 ( Λ2 + a2 )−1 ∫ Λ−dΛ 0 dτ′gΛ(Λ,τ′)τ′ sinh(πτ′)ϑ(Λ,τ′; ξ), (3.46) where we have again ignored the term proportional to dΛ. From this result we can find ϑ(τ, Λ; ξ) as ϑ(τ, Λ; ξ) = 2 π2 ( Λ2 + a2 )−1 ∫
    keywords: acta; case; constant; contraction; coupling; doi; ds s; effective; energy; equation; erg; exact; group; gλ(p; gλ(λ; gλ0; hamiltonian; hyperbolic; integral; interactions; limit; log; l′=0; n+1; physics; plane; point; polytechnica; problem; procedure; range; renormalization; result; s s2; scale; scale λ; sinh(πτ′; solution; space; state; sup; tanh(πs; term; theory; turgut; vol; wilson; λ λ0; λ0 ds; λ−dλ; ν2r2; ω0)y
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        item: #530 of 1243
          id: ap-212
      author: Böszörményi, G.; Böszörményi, L.
       title: Some Problems of the Integration of Heat Pump Technology into a System of Combined Heat and Electricity Production
        date: 2001-01-02
       words: 2867
      flesch: 53
     summary: If as planned, geothermal heat is fed directly into the district heating network the efficiency would be greatly reduced. In winter, only one housing estate in Košice city would be supplied with heat power (~65 MW) by the heat pump.
    keywords: adobe; alternative; chp; combined; conception; cycle; district; efficiency; electricity; energy; false; fig; gas; geothermal; geothermal energy; heat; heat pump; heating; košice; output; pdf; period; plant; power; processes; production; pump; pumping; secondary; solution; sources; stage; steam; system; technology; temperature; true; utilization; water; way
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        item: #531 of 1243
          id: ap-2122
      author: Dorner, Daniela; Biland, A.; Bretz, T.; Buss, J.; Einecke, S.; Eisenacher, D.; Hildebrand, D.; Knoetig, M. L.; Krähenbühl, T.; Lustermann, W.; Mannheim, K.; Meier, K.; Neise, D.; Overkemping, A.-K.; Paravac, A.; Pauss, F.; Rhode, W.; Ribordy, M.; Steinbring, T.; Temme, F.; Thaele, J.; Vogler, P.; Walter, R.; Weitzel, Q.; Zänglein, M.
       title: FACT — STATUS AND FIRST RESULTS
        date: 2014-06-27
       words: 2690
      flesch: 63
     summary: G-APDs [1] were therefore chosen as photosensors which has provided also the opportunity to show that Si-based photodetectors are suitable for Cherenkov telescopes. FACT is the first imaging Cherenkov telescope based on a camera using solid state photosensors (Geigermode Avalanche Photodiodes G-APD aka SiPM).
    keywords: 501; acta; analysis; apds; background; bright; camera; cherenkov; collaboration; conditions; data; events; excess; fact; figure; icrc; janeiro; left; light; monitoring; moon; mrk; observations; operation; physics; proceedings; rate; results; rio; stable; system; telescope; tev; time; trigger; zenith
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        item: #532 of 1243
          id: ap-2124
      author: Eikmann, Wiebke; Wilms, Jörn; Smith, Randall K.; Lee, Julia C.
       title: X-RAY TRANSMISSION AND REFLECTION THROUGH A COMPTON-THICK MEDIUM VIA MONTE-CARLO SIMULATIONS
        date: 2014-06-27
       words: 2197
      flesch: 63
     summary: The shape of the fluorescent lines also changes since scattered line photons form several Compton-shoulders which are very prominent especially for Compton-thick sources. The first term describes the number of line photons that was created within τ and the second term describes the subsequent absorption.
    keywords: absorption; cm−2; compton; energies; energy; figure; fluorescent; geometry; high; iron; kev; line; medium; model; photons; ray; red; scattering; shape; source; spectra; spectrum; spherical; strength; thick; wilms
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        item: #533 of 1243
          id: ap-2127
      author: Karas, Vladimír; Bakala, Pavel; Török, Gabriel; Dovčiak, Michal; Wildner, Martin; Wzientek, Dalibor; Šrámková, Eva; Abramowicz, Marek; Goluchová, Kateřina; Mazur, Grzegorz P.; Vincent, Frédéric H.
       title: DISTINGUISHING BETWEEN SPOT AND TORUS MODELS OF HIGH-FREQUENCY QUASIPERIODIC OSCILLATIONS
        date: 2014-06-27
       words: 3787
      flesch: 53
     summary: On the other hand, the LOFT PDS clearly reveal the presence/absence of the harmonics additional to the 3:2 peaks representing the signature of spot motion. Conclusions We can identify the signatures of spot motion mostly with the harmonic content of the observable signal.
    keywords: a&a; abramowicz; accretion; acta; amplitude; apj; black; capabilities; close; corresponding; doi; effects; epicyclic; figure; flux; frequencies; frequency; harmonics; high; hole; inclination; karas; keplerian; left; levels; loft; models; observed; orbits; oscillations; panel; pds; physics; polytechnica; power; qpos; r3:2; radial; ray; right; rxte; signal; spectra; spot; torus; török; view
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        item: #534 of 1243
          id: ap-2129
      author: Majcher, Ariel; Cwiek, Arkadiusz; Cwiok, Mikołaj; Mankiewicz, Lech; Zaremba, Marcin; Zarnecki, Aleksander F.
       title: “PI OF THE SKY” OFF-LINE EXPERIMENT WITH GLORIA
        date: 2014-06-27
       words: 2482
      flesch: 58
     summary: To present the network capabilities and the perfor- mance of the tools, demonstrator experiments have been created in both categories. Tests with constant stars The light curve reconstruction procedure was first tested on selected constant stars.
    keywords: acta; analysis; chile; correction; curve; cut; data; demonstrator; distribution; experiment; figure; framework; gloria; image; level; light; line; luiza; magnitudo; network; object; observations; polytechnica; processing; processor; project; reconstruction; research; results; robotic; sky; star; telescope; user; warsaw
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        item: #535 of 1243
          id: ap-2131
      author: Meier, Katja; Biland, A.; Bretz, T.; Buss, J.; Dorner, D.; Einecke, S.; Eisenacher, D.; Hildebrand, D.; Knoetig, M. L.; Krähenbühl, T.; Lustermann, W.; Mannheim, K.; Neise, D.; Overkemping, A.-K.; Paravac, A.; Pauss, F.; Rhode, W.; Ribordy, M.; Steinbring, T.; Temme, F.; Thaele, J.; Vogler, P.; Walter, R.; Weitzel, Q.; Zänglein, M.
       title: FACT — LONGTERM MONITORING OF BRIGHT TeV BLAZARS
        date: 2014-06-27
       words: 2278
      flesch: 67
     summary: The FACT collaboration was founded in 2008 with the aim to examine these silicon photodectectors for use in Cherenkov telescopes and to monitor bright TeV blazars in the longterm. FACT has been optimized for longterm monitoring of bright TeV blazars, to study their variability time scales and flare probability.
    keywords: 421; agn; apd; apds; arxiv; astro; blazars; bright; cherenkov; crab; data; detection; energy; excess; fact; figure; flare; flux; gamma; high; imaging; june; longterm; major; markarian; monitoring; physics; project; radiation; range; rate; sources; telescope; tev; time; vhe
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        item: #536 of 1243
          id: ap-2135
      author: Ondruška, Michal; Drienovský, Marián; Čička, Roman; Marônek, Milan; Náplava, Antonín
       title: OPTIMIZING THE WELDING OF PLASTICS WITH THE USE OF DIFFERENTIAL SCANNING CALORIMETRY AND THERMOGRAVIMETRIC ANALYSIS
        date: 2014-06-27
       words: 2233
      flesch: 55
     summary: Thermal welding methods have a number of advan- tages and disadvantages. Welding techniques for thermoplastics are di- vided into three categories[3].
    keywords: acta; air; analysis; atmosphere; calorimetry; cooling; curve; differential; dsc; fig; figure; gas; hdpe; heating; materials; measurements; melting; methods; plastics; polymers; processing; record; sample; science; technology; temperature; thermal; thermoplastics; time; tool; trnava; university; welding
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        item: #537 of 1243
          id: ap-2137
      author: Opiela, Rafał; Małek, Katarzyna; Mankiewicz, Lech; Siudek, Małgorzata; Sokołowski, Marcin; Zarnecki, Aleksander Filip
       title: PHOTOMETRIC ANALYSIS OF PI OF THE SKY DATA
        date: 2014-06-27
       words: 3080
      flesch: 62
     summary: The detector response is correlated with the spectral type (B −V or J −K) of catalog stars. observations without any filter (which is the case for most of our data), we normalize our measurements to reference stars measured in V filter. Histograms of the percentage of bad catalog stars in a single frame.
    keywords: acta; analyzed; bad; best; case; catalog; catalog stars; centre; color; correction; curve; data; detector; figure; frame; light; light curve; magnitude; mcorr; measurements; methods; near; new; photometry; polytechnica; project; quality; selected; sky; spectral; stars; system; type; university
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        item: #538 of 1243
          id: ap-2138
      author: Sławomir, Wojnar; Rohal-Ilkiv, Boris; Šimončic, Peter; Honek, Marek; Jozef, Csambál
       title: IN-CYLINDER MASS FLOW ESTIMATION AND MANIFOLD PRESSURE DYNAMICS FOR STATE PREDICTION IN SI ENGINES
        date: 2014-06-27
       words: 5495
      flesch: 66
     summary: Measurement with AFM is denoted by a dashed line, computed air mass flow with a full line. In-cylinder flow estimation is crucial for engine control, where an accurate amount of aspired air forms the basis for computing the manipulated variables.
    keywords: acta; afm; afr; air; aspired; combustion; conditions; constant; control; cylinder; cylinder flow; density; doi:10.1109; dynamics; efficiency; engine; engineering; equal; equation; estimation; example; exhaust; fig; figure; flow; fuel; future; gas; intake; intake manifold; manifold; map; mass; measurement; model; number; paper; polytechnica; possible; power; prediction; pressure; ratio; revolutions; speed; strokes; system; temperature; throttle; time; volumetric; wie; wojnar; šimončič; η̃v(p
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        item: #539 of 1243
          id: ap-214
      author: Elminir, Hamdy K.; Rahuma, U. A.; Benda, V.
       title: Comparison Between Atmospheric Turbidity Coefficients of Desert and Temperate Climates
        date: 2001-01-02
       words: 8785
      flesch: 59
     summary: � � . (3) The evaluation of TL from IN requires the knowledge of �R. The values of �R originally by Feussner and Dubois, [13] were presented by: � ��R A� � �9 4 0 9 1. .
    keywords: acta; adobe; aerosol; air; annual; appendix; area; atmosphere; atmospheric turbidity; attenuation; average; b1 b2; b2 b3; bands; beam; cairo; cement; clean; climate; coefficient; comparison; czech; data; day; desert; different; direct; dry; dust; earth; emissions; energy; equation; extinction; extraterrestrial; factor; fallout; false; fig; filters; formula; global; helwan; higher; house; http://ctn.cvut.cz/ap/; humidity; index; industrial; kwh; level; linke; mass; mean; measured; measurements; monthly; ngström; normal; number; optical; particles; period; pollution; polytechnica; prague; precipitable; presence; publishing; radiation; reduction; relative; republic; results; selected; site; solar; solar radiation; spectral; study; summer; surface; table; technical; temperature; thickness; total; true; turbidity; university; values; vapor; variation; vol; water
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        item: #540 of 1243
          id: ap-2140
      author: Šimon, Vojtěch
       title: LOW-MASS BINARY X-RAY SOURCES: MONITORING WITH VARIOUS SATELLITES
        date: 2014-06-27
       words: 4442
      flesch: 72
     summary: A very hard X-ray band like the one in BAT/Swift sometimes maps quite a different activity (probably coming from a different spectral component) than that detected by monitors observing in soft X-ray band. When some critical mass density of the disk is reached, strong accretion of matter from the disk onto the central com- pact object triggers the outburst, hence a fast increase of X-ray intensity
    keywords: accretion; activity; apj; aql; asm; band; bat; binaries; binary; compact; curve; cycle; data; disk; evolution; fig; figure; fluctuations; intensity; isum; kev; large; light; lmxbs; long; low; luminosity; mass; means; monitoring; monitors; object; observations; observed; outburst; peak; processes; profile; ray; rays; region; rxte; soft; soft x; sources; spectral; swift; term; time; variations; x-1
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        item: #541 of 1243
          id: ap-2143
      author: Stuchlik, Zdenek; Schee, Jan
       title: ON OBSERVATIONAL PHENOMENA RELATED TO KERR SUPERSPINARS
        date: 2014-06-27
       words: 2710
      flesch: 60
     summary: We conclude that near-extreme superspinning Kerr geometries are much more efficient for the occurrence of ultra-high energy collisions then the vicinity of the 255 Zdenek Stuchlik, Jan Schee Acta Polytechnica 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.2 0.4 0.6 0.8 1.0 frequency shift g sp e c if ic e n e rg y fl u x p=2.0 Θ0=30° rsusp=0.1 Figure 2. Ultra-high energy collisions in the superspinning kerr geometry.
    keywords: black; collisions; disc; doi; energy; escape; extreme; field; figure; frequency; high; inclination; keplerian; kerr; lines; naked; near; observer; particles; phenomena; photons; profiled; radiation; related; representative; ring; schee; shift; singularity; solid; spectral; superspinars; ultra; values
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        item: #542 of 1243
          id: ap-2144
      author: Shershunova, Ekaterina Alexandrovna; Malashin, Maxim; Moshkunov, Sergei; Khomich, Vladislav
       title: DIFFUSE DBD IN ATMOSPHERIC AIR AT DIFFERENT APPLIED PULSE WIDTHS
        date: 2015-02-28
       words: 2020
      flesch: 64
     summary: As a rule, diffuse high-current DBD in atmospheric air is realized by applying voltage pulses of submi- crosecond duration to the electrodes. Many re- searchers have shown that the diffuse mode of DBD with two discharge peaks per one voltage pulse can be ignited at low pressure, and even at atmospheric pressure, in gases such as neon, argon and helium by applying high voltage pulses with short durations to the electrodes [1, 2].
    keywords: air; applied; atmospheric; barrier; current; dbd; dielectric; diffuse; discharge; electrodes; energy; experimental; figure; gap; khomich; malashin; moshkunov; peak; power; primary; pulse; secondary; vin; voltage; volume; width
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        item: #543 of 1243
          id: ap-2147
      author: Domonkos, Mária; Ižák, Tibor; Štolcová, Lucie; Proška, Jan; Demo, Pavel; Kromka, Alexander
       title: STRUCTURING OF DIAMOND FILMS USING MICROSPHERE LITHOGRAPHY
        date: 2014-10-31
       words: 2550
      flesch: 65
     summary: For example, increasing the surface area-to-volume ratio of diamond films improves the field-emission proper- ties by introducing the enhancement effect of the local field near the tips [5]. Generally, various nanostruc- tures can be fabricated from diamond films known as nanowires, nanorods, nanoneedles, etc.
    keywords: applications; arrays; band; bonds; carbon; ch4; chemical; czech; deposition; diamond; electron; etching; figure; films; gas; grain; high; like; lithography; mask; mcd; method; microsphere; ncd; phys; plasma; preparation; process; properties; rie; self; structures; structuring; surface; table; thin
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        item: #544 of 1243
          id: ap-2156
      author: Kulveit, Jan
       title: ISING MODEL SIMULATIONS AS A TESTBED OF NUCLEATION THEORY
        date: 2015-02-28
       words: 3852
      flesch: 58
     summary: In the development of nucleation theory, there is obvi- ously a huge space for extensions and improvements of classical theory. Testbed systems and results Even in a simulation, when modeling real systems us- ing molecular dynamics, nucleation theory gets tested along with various other simulation properties (e.g., a description of interatomic forces).
    keywords: acta; assumptions; barrier; case; chemical; classical; clusters; cnt; critical; czech; demo; doi:10.1103; dynamics; energy; events; frenkel; hard; heterogeneous; important; lattice; letters; model; new; nucleation; nucleation theory; nuclei; parameters; phase; physical; physics; polytechnica; process; rate; republic; results; review; shape; simulation; size; small; space; spheres; stable; studies; surface; systems; technology; temperature; term; testbed; theory; time; ∆gn
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        item: #545 of 1243
          id: ap-2159
      author: Prošek, Zdeněk; Králík, Vlastimil; Topič, Jaroslav; Nežerka, Václav; Indrová, Kateřina; Tesárek, Pavel
       title: MICROSTRUCTURE DESCRIPTION AND MICROMECHANICAL PROPERTIES OF SPRUCE WOOD
        date: 2015-02-28
       words: 6449
      flesch: 58
     summary: Experimental micromechanical characterisation of wood cell walls. doi:10.1007/s00339–004–2864-y [15] Gindl, W. and Schöberl, T.: The significance of the elastic modulus of wood cell walls obtained from nanoindentation measurements.
    keywords: acta; amplitude; angle; area; cell; cell walls; chemical; contact; cross; czech; data; depth; displacement; dynamic; earlywood; elastic; elastic stiffness; engineering; fibers; fibrils; figure; force; gindl; gpa; hardness; indentation; indentation modulus; indenter; individual; information; lamella; latewood; layer; loading; longitudinal; mapping; material; measured; method; micromechanical; microscopy; microstructure; middle; modulus; nanodma; nanoindentation; parenchymal; phases; polytechnica; properties; quasi; results; samples; secondary; section; spruce; spruce wood; static; stiffness; storage; surface; thickness; timber; tip; tissues; tracheids; values; vol; wall; wood; wood cell
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        item: #546 of 1243
          id: ap-216
      author: Svoboda, V.; Šiktancová, D.
       title: Determining the Permeable Efficiency of Elements in Transport Networks
        date: 2001-01-02
       words: 1774
      flesch: 46
     summary: Keywords: the transport networks, elements in transport network, disintegration of transport flow in transport networks, permeability of elements in transport network, permeability of networks, determining of the permeability of edges, deterministic and stochastic work regimes, systems of queuing theory, a transcendental equation. In order to determine the permeability of the trans- port net element with a stochastic work regime, operations research methods were mainly used, in particular queuing theory for typical service systems and stock theory for systems where the transport sets are made up of transport elements.
    keywords: /qfactor; adobe; edges; elements; entry; evaluation; false; flow; gaps; mean; methods; nets; network; node; number; pdf; permeability; requirements; service; set; system; theory; time; transport; true; unit; use
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        item: #547 of 1243
          id: ap-2160
      author: Remes, Zdeněk; Novak, Tomas; Stuchlik, Jiri; Stuchlikova, The-ha; Dřínek, Vladislav; Fajgar, Radek; Zhuravlev, Konstantin
       title: INFRARED PHOTOLUMINESCENCE SPECTRA OF PBS NANOPARTICLES PREPARED BY LANGMUIR–BLODGETT AND LASER ABLATION METHODS
        date: 2014-12-31
       words: 2084
      flesch: 52
     summary: We apply infrared PL to study the relative PL quantum efficiency and the thermal stability of PbS nanoparticles prepared in the form of thin layers by the Langmuir–Blodgett and laser ablation methods on glass substrates. The room temperature spectrally corrected and normalized PL spectra of a 50 nm layer of PbS nanoparticles deposited on a Corning glass #7059 substrate and annealed for 5 min in air at various temperatures.
    keywords: ablation; ascr; blodgett; corning; czech; deposition; fig; glass; higher; infrared; institute; intensity; langmuir; laser; measurements; nanoparticles; optical; pbs; pbs nanoparticles; photoluminescence; physics; prague; quantum; samples; setup; silica; spectra; substrates; target; technique; temperature; thin; v.v.i
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        item: #548 of 1243
          id: ap-2164
      author: Sveshnikov, Alexey; Demo, Pavel; Kožíšek, Zdeněk; Tichá, Petra
       title: SHAPE OF A NUCLEUS GROWING ON STRONGLY CURVED SURFACE OF A NANOFIBER
        date: 2014-12-31
       words: 2104
      flesch: 52
     summary: This assumption leads to the conclusion that growing nuclei have the shape of a spherical cap. Taking into account huge amount of money paid every year for restoration of surface of civil constructions every factor which can reduce the rate of required treatment will lead to appreciable savings.
    keywords: acta; axis; civil; contact; cos; curvature; deviation; energy; engineering; equilibrium; free; material; metastable; nanofiber; nanoparticles; nanotextile; nucleation; nuclei; nucleus; perpendicular; process; radius; shape; spherical; surface; term; volume
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        item: #549 of 1243
          id: ap-2169
      author: Gromada, Daniel; Pošta, Severin
       title: AUTOMORPHISMS OF ALGEBRAS AND ORTHOGONAL POLYNOMIALS
        date: 2014-12-31
       words: 2407
      flesch: 73
     summary: [A−1SA]j,j−1, which leads to the condition |aj|2 = |aj−1|2 S̄j,j−1 Sj−1,j = |aj−1|2 N − j Suitable automorphisms together with a complete classification of representations of some algebras can be used to generate some sets of orthogonal polynomials “at no cost”.
    keywords: algebra; askey; case; classification; inner; irreducible; j−1; krawtchouk; lie; matrices; matrix; orthogonal; parameters; polynomials; product; q−n; racah; recurrence; relation; representations; sl2; terwilliger; u′q(so3; wilson; µ(x; ϕ(i1
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        item: #550 of 1243
          id: ap-218
      author: Vorel, M.; Leidich, E.
       title: Accuracy of Determining Stress Intensity Factors in Some Numerical Programs
        date: 2001-01-02
       words: 3725
      flesch: 58
     summary: To take advantage of the programs’ ex- tensive functions and high reliability a number of user subroutines for solving stress intensity factors need to be programmed. As regards the accuracy of stress intensity factors, only single programs have been compared with analytical solu- tions so far, and no comparison of the programs with each other has been presented.
    keywords: accuracy; acta; adobe; analyses; analytical; beam; coarse; computational; crack; cracked; dimensional; edge; elements; engineering; factors; false; fig; fine; fineness; flat; fracture; franc3d; influence; intensity; intensity factors; marc; medium; mesh; method; models; mpa; numerical; plate; polytechnica; problems; programs; quality; results; semielliptical; single; solutions; stress; stress intensity; study; technical; true; university; user; values; version; vol
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        item: #551 of 1243
          id: ap-2180
      author: Sovják, Radoslav; Rašínová, Jana; Máca, Petr
       title: EFFECTIVE FRACTURE ENERGY OF ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER INCREASED STRAIN RATES
        date: 2014-10-31
       words: 2882
      flesch: 63
     summary: Development of the dynamic increase factor. and increased strain rate loading, respectively. In addition, it is found that higher fibre volume fractions tend to decrease the sensitivity of UHPFRC to increased strain rates.
    keywords: beams; capacity; concrete; content; effective; effective fracture; energy; experimental; fibre; figure; fracture; fracture energy; high; higher; impact; loading; lower; material; performance; pull; quasi; rates; static; strain; strain rates; strength; study; s−1; table; tensile; uhpfrc; ultra; volume
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        item: #552 of 1243
          id: ap-2195
      author: Pikna, Peter; Píč, Vlastimil; Benda, Vítězslav; Fejfar, Antonín
       title: ANNEALING OF POLYCRYSTALLINE THIN FILM SILICON SOLAR CELLS IN WATER VAPOUR AT SUB-ATMOSPHERIC PRESSURES
        date: 2014-10-31
       words: 4261
      flesch: 56
     summary: voltage VOC is commonly used as a silicon quality fac- tor. Voltage VOC at room temperature is not depicted in the graph.
    keywords: annealing; cell; chamber; circuit; corresponding; current; curves; data; detector; different; electrical; fig; figure; film; flash; generated; intensity; light; lock; measured; measurement; method; mpa; open; passivation; polycrystalline; pressure; room; sample; silicon; solar; solar cell; suns; temperature; thermo; thin; time; vapour; voc; voc method; voltage; voltage voc; vth; water
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        item: #553 of 1243
          id: ap-2197
      author: Cutroneo, Mariapompea; Torrisi, Lorenzo; Mackova, Anna; Velyhan, Andriy
       title: POLYMERS CONTAINING Cu NANOPARTICLES IRRADIATED BY LASER TO ENHANCE THE ION ACCELERATION
        date: 2015-06-30
       words: 2579
      flesch: 58
     summary: The composition and the geometry of the target absorb high laser energy and generate hot plasmas and high charge separation, inducing high ion acceleration, as will be reported. 2. Material and Methods The high-power photodissociation iodine laser system of the PALS Research Center in Prague, operating at 1.315 µm wavelength, laser energy ranging between 450 and 600 J, pulse duration 300 ps, and intensity of 1015 W/cm2, was employed for the experiments pre- sented here [7].
    keywords: absorption; acceleration; acta; charge; conditions; czech; density; direction; electron; energy; film; forward; high; intensity; ions; irradiating; kinetic; laser; mev; mylar; nanoparticles; parabola; physics; plasma; polytechnica; position; proton; pulse; pure; sic; spectra; surface; target; thickness; thin; torrisi; tps
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        item: #554 of 1243
          id: ap-2199
      author: Torrisi, Lorenzo; Cutroneo, Mariapompea; Ullschmied, Jiri
       title: HYDROGENATED TARGETS FOR HIGH ENERGY PROTON GENERATION FROM LASER IRRADIATING IN TNSA REGIME
        date: 2015-06-30
       words: 2608
      flesch: 56
     summary: Higher ion acceleration is therefore expected, as reported in Fig. MeV pro- ton beams can be applied in various areas of interest, from biomedicine (hadron therapy) to nuclear physics (nuclear fusion processes), from microelectronics (semi- conductor doping) to laser ion source (ion injection in accelerators) and to other fields [1, 2].
    keywords: absorption; acceleration; acta; carbon; case; cnt; cutroneo; energy; fe2o3; fig; high; ions; irradiation; kinetic; laser; low; maximum; mev; nanostructures; order; plasma; polyethylene; polymer; polytechnica; proton; pure; regime; sic; target; thickness; tnsa; tof; torrisi; tps; wavelength
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        item: #555 of 1243
          id: ap-220
      author: Elsayed, Ashraf El-Shahat; Grünwald, A.; Dvořák, D.
       title: Pollutant Removal from Highway Runoff Using Retention/Detention Units
        date: 2001-01-02
       words: 4005
      flesch: 52
     summary: In order to study the effect of traffic vol- ume on highway runoff characteristics, we compare the runoff characteristics collected from the D1 and D5, which have different traffic volumes. Numerous factors may affect the presence of these constitu- ents and the quality of highway runoff, including: traffic volume, precipitation characteristics, roadway surface type, the nature of the pollutants themselves, surrounding land use, and seasonal considerations.
    keywords: adobe; chambers; characteristics; collected; concentration; constituents; czech; date; detention; effect; false; filter; flow; greases; grit; highway; hydrocarbons; influent; monitoring; n c; o n; oil; organic; particulate; prague; quality; removal; results; rudná; runoff; samples; sediment; site; solids; storage; study; suspended; time; total; traffic; treatment; true; tss; units; urban; vol
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        item: #556 of 1243
          id: ap-2200
      author: Kurbanismailov, Vali Suliymanovich; Omarov, Omar Alievich; Ragimkhanov, Gadjimirza Balaglanovich; Aliverdiev, Abutrab Alexandrovich
       title: ABOUT THE UNIFORMITY AND THE STABILITY OF A VOLUME DISCHARGE IN HELIUM IN NEAR-ATMOSPHERIC PRESSURE
        date: 2015-08-31
       words: 2535
      flesch: 62
     summary: Keywords: discharge formation; volume discharge; streamer; discharge plasma. Introduction One of the applications of volume discharges in inert gases is gas laser pumping.
    keywords: anode; atm; atmospheric; burning; cathode; channel; characteristics; cm2; current; density; discharge; duration; electrodes; fig; figure; gas; glow; growth; helium; high; increase; initial; ionization; kurbanismailov; mode; omarov; phys; physics; plasma; pressure; pulse; results; spark; stage; time; uniformity; v.s.; voltage; volume; volume discharge
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        item: #557 of 1243
          id: ap-2201
      author: Caballero-Garcia, Maria D.; Jelinek, M.; Castro-Tirado, A.; Hudec, R.; Cunniffe, R.; Rabaza, O.; Sabau-Graziati, L.
       title: INITIAL FOLLOW-UP OF OPTICAL TRANSIENTS WITH COLORES USING THE BOOTES NETWORK
        date: 2015-04-30
       words: 2934
      flesch: 65
     summary: RH acknowledges GACR grant 13-33324S. References [1] Castro-Tirado, A. J., Soldán, J., Bernas, M. et al. [5] Barthelmy, S. D., Baumgartner, W. H., Cummings, J. R., et al. GRB 130606A, Swift-BAT refined analysis.
    keywords: 130606a; astronomer; astrophysical; bootes-2; burst; castro; colores; czech; emission; follow; following; gamma; grb; grbs; j17154683; jelinek; network; new; nova; observations; observed; optical; ots; range; ray; results; robotic; scientific; sources; spectrograph; stars; study; swift; system; tcp; telegram; telescopes; tirado; transient
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        item: #558 of 1243
          id: ap-2203
      author: Domalapally, Phani Kumar; Entler, Slavomir
       title: COMPARISON OF COOLING SCHEMES FOR HIGH HEAT FLUX COMPONENTS COOLING IN FUSION REACTORS
        date: 2015-04-30
       words: 6123
      flesch: 65
     summary: Some components of fusion reactors receive high heat fluxes either during startup and shutdown, or while the machine is in operation. Liquid metals are proposed as coolants because of their high thermal conductivity and high heat capacity, which enable them to accommodate high heat fluxes (HHF) with relatively low velocities.
    keywords: alloy; applications; area; channel; chf; comparison; components; concept; coolant; cooling; design; divertor; drop; engineering; et.al; experiments; figure; finger; fins; flow; flux; fluxes; foam; fusion; fusion engineering; heat; heat flux; helium; high; high heat; htc; hypervapotron; increase; inlet; iter; jet; liquid; media; metal; modular; module; mpa; order; plasma; plate; porous; power; pressure; pumping; reactor; schemes; screw; section; smooth; surface; swirl; system; target; techniques; temperature; thermal; transfer; tube; use; water
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        item: #559 of 1243
          id: ap-2212
      author: Beuchert, Tobias; Wilms, Jörn; Kadler, Matthias; Longinotti, Anna Lia; Guainazzi, Matteo; Miniutti, Giovanni; de la Calle, Ignacio
       title: X-RAY VARIABILITY STUDY OF POLAR SCATTERED SEYFERT1 GALAXIES
        date: 2014-08-31
       words: 2937
      flesch: 64
     summary: The shortest measured timescale of 5 days is due to warm absorber variability. References [1] R. Antonucci, 2012, Astronomical and Astrophysical Transactions, 27, 557 [2] Barlow, R. 2004, arXiv:physics/0406120 [3] A. J. Blustin, et al., 2005, A&A, 431, 111 [4] S. Chakravorty, et al., 2008, MNRAS, 384, L24, doi:10.1111/j.1745-3933.2007.00414.x [5] E. Costantini, 2010, Space Sci Rev, 157, 265, doi:10.1007/s11214-010-9706-3 [6] Dorodnitsyn, A., & Kallman, T. 2012, ApJ, 761, 70, doi:10.1088/0004-637X/761/1/70 [7] Fukumura, K., Kazanas, D., Contopoulos, I., & Behar, E. 2010, ApJ, 715, 636, doi:10.1088/0004-637X/715/1/636 [8] J. H. Krolik, et al., 1988, ApJ, 329, 702, doi:10.1086/166414 [9] J. H. Krolik, et al., 2001, ApJ, 561, 684, doi:10.1086/323442 [10] A. M. Lohfink, et al., 2012, ApJ, Lett, 749, L31, doi:10.1088/2041-8205/749/2/L31 [11] G. Matt, et al., 2011, A&A, 533, A1, doi:10.1051/0004-6361/201116443 [12] L. Miller, et al., 2007, A&A, 463, 131, doi:10.1051/0004-6361:20066548 [13] Markowitz, A. G., Krumpe, M., & Nikutta, R. 2014, MNRAS, 439, 1403, doi:10.1093/mnras/stt2492 [14] Nenkova, M., Sirocky, M. M., Ivezić, Ž., & Elitzur, M. 2008, ApJ, 685, 147, doi:10.1086/590482 [15] Nenkova, M., Sirocky, M. M., Nikutta, R., Ivezić, Ž., & Elitzur, M. 2008, ApJ, 685, 160, doi:10.1086/590483 [16] P. Padovani, et al., 1988, A&A, 205, 53 [17] B. M. Peterson., 1993, PASP, 105, 247, doi:10.1086/133140 [18] E. A. Pier, et al., 1992, ApJ, 401, 99, doi:10.1086/172042 [19] Reynolds, C. S., & Fabian, A. C. 1995, MNRAS, 273, 1167
    keywords: absorber; absorption; apj; column; confidence; density; distance; fairall; fig; figure; galaxies; gas; ionized; line; mnras; model; mrk; neutral; newton; ngc; noise; observations; outer; polar; ray; sample; seyfert; sight; source; swift; table; timescales; torus; variability; variable; warm; xmm
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        item: #560 of 1243
          id: ap-2214
      author: Karpov, Sergey; Beskin, Grigory; Plokhotnichenko, Vladimir
       title: SEARCH FOR ISOLATED BLACK HOLES: PAST, PRESENT, FUTURE
        date: 2014-08-31
       words: 2887
      flesch: 57
     summary: A large fraction of black hole emission is generated inside the 2rg sphere, and so carries information about the physical conditions of space-time very close to the event horizon. A study of these flares in black hole emission therefore provides a way to probe extreme space-time regions directly very close to the horizon.
    keywords: accretion; acta; analysis; arxiv; astro; astrophysical; beskin; black; black hole; emission; energy; et al; event; field; flares; flow; high; hole; horizon; interstellar; isolated; magnetic; mania; mass; nonthermal; objects; observations; optical; plasma; polytechnica; property; rate; ray; resolution; search; shvartsman; single; space; spectra; stellar; temporal; thermal; time; variability; way
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        item: #561 of 1243
          id: ap-2216
      author: Koeny, Marcus; Blanik, Nikolai; Yu, Xinchi; Czaplik, Michael; Walter, Marian; Rossaint, Rolf; Blazek, Vladimir; Leonhardt, Steffen
       title: USING PHOTOPLETHYSMOGRAPHY IMAGING FOR OBJECTIVE CONTACTLESS PAIN ASSESSMENT
        date: 2014-08-31
       words: 4224
      flesch: 59
     summary: Data recordings in the University Hospital in Aachen The ECG and PPG signals used to develop and evalu- ate the described algorithms were recorded over a time period of two months anonymously at the University Hospital of Aachen, Germany, after approval by the local ethics committee. Comparing Heart Rate Variability In addition to the time delay between the ECG signal and the PPG signal, the sample times of the ECG and PPG signals, are relevant for the precision of the measurement.
    keywords: aachen; acta; addition; algorithm; analgesia; analysis; anesthesia; ani; artifacts; assessment; available; beat; camera; computation; contactless; delay; detection; ecg; example; figure; filter; heart; hrv; image; imaging; index; intervals; interventions; local; measurement; method; nociception; pain; patient; peaks; polytechnica; postoperative; ppg; ppg signal; ppgi; rate; results; sample; signal; skin; standard; stress; surgical; system; time; university; variability; work
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        item: #562 of 1243
          id: ap-2218
      author: Schillaci, Francesco; Cirrone, Giuseppe A. P.; Korn, George; Maggiore, Mario; Margarone, Daniele; Calabretta, Luciano; Cavallaro, Salvatore; Cuttone, Giacomo; Gammino, Santo; Krasa, Josef; Prokupek, Jan; Velyhan, Andriy; Renis, Marcella; Romano, Francesco; Tomasello, Barbara; Torrisi, Lorenzo; Cutroneo, Mariapompea; Tramontana, Antonella
       title: ELIMED: MEDICAL APPLICATION AT ELI-BEAMLINES. STATUS OF THE COLLABORATION AND FIRST RESULTS
        date: 2014-08-31
       words: 3617
      flesch: 61
     summary: Ac- cording to already performed Particle in Cell (PIC) simulations, proton beams up to 20 − 30 MeV will be produced, Second phase. [13] Cirrone, G. A. P. et al: Diagnostic for the radiotherapy use of laser accelerated proton beams.
    keywords: acceleration; acta; available; beam; beamlines; deflection; design; different; direction; electric; eli; elimed; energy; experimental; facility; field; figure; high; icr; infn; ion; italy; laser; light; lns; magnetic; magnets; maximum; medical; mev; new; order; pals; parabola; particles; phase; phys; polytechnica; project; proton; range; results; selector; slit; spectrometer; spread; system; target; thomson; transport
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        item: #563 of 1243
          id: ap-222
      author: Grünwald, A.; Šťastný, B.; Slavíčková, K.; Slavíček, M.
       title: Effect of the Distribution System on Drinking Water Quality
        date: 2001-01-03
       words: 2578
      flesch: 57
     summary: The overall rate of chlorine decay can be expressed as follows: � ��c b f H w� � � �k k R c c where � is the rate of chlorine decay in mg�l�1�d��, kb first order decay coefficient in d ��, c chlorine concentration in bulk flow in mg�l�1, kf mass transfer coefficient in m�d �1, RH hydraulic radius in m, cw chlorine concentration at the pipe wall in mg�l �1. The chlorine decay coefficient k1 calculated from the values of chlorine concentrations measured in the period 1997–2000 ranged from 0.252 d�1 to 1.336 d�1 and their coefficient of correlation varied from 0.637 to 0.999.
    keywords: active; adobe; bulk; chlorine; coefficient; concentration; content; czech; decay; deposits; distribution; drinking; effect; false; fig; flow; formation; particles; pdf; pipelines; plav; products; quality; residence; sample; sedimentation; shaft; solids; system; thm; time; true; uptake; values; vol; water; wtp
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        item: #564 of 1243
          id: ap-2222
      author: Sochora, Vjaceslav; Karas, Vladimír; Svoboda, Jirí; Dovciak, Michal
       title: BEYOND THE STANDARD MODEL OF THE DISC–LINE SPECTRAL PROFILES FROM BLACK HOLE ACCRETION DISCS
        date: 2014-08-31
       words: 2283
      flesch: 68
     summary: Model spectrum considering background 3.1. Model spectrum and analysis by LOFT 2.1.
    keywords: accretion; background; black; components; data; disc; emissivity; energy; figure; galactic; hole; kev; lad; large; law; line; loft; model; parameters; peaks; power; profile; ray; rings; shifts; spectral; spectrum; spin; timing; values
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        item: #565 of 1243
          id: ap-2224
      author: Vojta, Vladimír
       title: FRACTIONAL CALCULUS AND LAMBERT FUNCTION I. LIOUVILLE–WEYL FRACTIONAL INTEGRAL
        date: 2014-08-31
       words: 8221
      flesch: 79
     summary: Function uy(Ey(y) + e−y)/y of complex variable y ∈ C has for fixed u ∈ C only one singular point y = 0 in which this function has non-removable point singularity. They can also be found in technological practice - we mention time-dependent shear, bulk and the Young moduli of linear viscoelastic materials, because they are Laplace transforms of the relevant nonnegative relaxation spectra
    keywords: 2iπ; = t; a(a; acta; bickley; c+i∞; calculus; case; complex; diagonal; equal; equation; example; exponential; e−yu; f(t; f(x; following; fractional; fractional integral; function; g(y; gamma; integral; iy−f)(y; lambert; laplace; laplace transform; left; liouville; mellin; mellin transform; monotone; order; point; polytechnica; proof; region; right; sin; solution; t dt; theorem; transform; unilateral; u−y−1; variable; vojta; w0(1; w0(eu; weyl; γ(y; ∫ ∞
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        item: #566 of 1243
          id: ap-2227
      author: Tsyrenov, Dmitriy; Semenov, Aleksandr; Smirnyagina, Natalia
       title: MODERNIZATION FEATURES OF A VACUUM INSTALLATION BASED ON LOW-PRESSURE ARC DISCHARGE FOR COMPOSITE TIN-CU LAYERS FORMATION
        date: 2015-04-30
       words: 1672
      flesch: 58
     summary: This effective increase in the hardness of the composite layer may be connected with the absence of the Ti drop phase and with the discovery of Cu atoms on the borders of the TiN grains. Introduction In this paper, we propose a hybrid technology for forming composite layers.
    keywords: arc; cathode; chamber; coatings; composite; copper; deposition; figure; films; hardness; installation; layers; magnetic; magnetron; microstructure; nanocomposite; parameters; phase; planar; ray; results; structure; surface; table; target; tin; titanium; vacuum; vol
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        item: #567 of 1243
          id: ap-2228
      author: Davydova, Marina; Smid, Jiri; Hubicka, Zdenek; Kromka, Alexander
       title: DEPOSITION CARBON NANOSTRUCTURES BY SURFATRON GENERATED DISCHARGE
        date: 2014-12-31
       words: 2208
      flesch: 59
     summary: Keywords: surfatron, carbon nanostructures, microwave plasma, PECVD. However, deposition of carbon nanostructures by SWD is not broadly used.
    keywords: acta; band; carbon; carbon nanostructures; ch4; chamber; cm−1; co2; deposition; discharge; distance; doi:10.1016; figure; films; flow; gas; gases; growth; microwave; mixture; nanostructures; pecvd; plasma; polytechnica; process; raman; sccm; sem; shower; spectrum; substrate; surface; surfatron; swd; system; temperature; thin
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        item: #568 of 1243
          id: ap-2230
      author: Lisy, Viliam
       title: ALTERNATIVE SELECTION FUNCTIONS FOR INFORMATION SET MONTE CARLO TREE SEARCH
        date: 2014-10-31
       words: 6810
      flesch: 67
     summary: Game theory provides means to deal with all these complications, but previous attempts to adapt MCTS to imperfect information games generally did not eval- uate the properties of the strategies from the perspec- tive of game theory. Keywords: Monte Carlo Tree Search, imperfect information game, selection function, Regret matching.
    keywords: action; algorithm; best; cards; carlo; computation; convergence; current; different; distribution; equilibrium; exp3; exploitability; exploration; extensive; function; game; goofspiel; head; imperfect; imperfect information; information; information games; information set; iterations; line; matches; matching; mcts; monte; nash; nature; nodes; number; opponent; performance; phantom; player; playing; position; probability; rand; regret; reward; search; second; section; selection; set; state; strategies; strategy; sum; table; tac; terminal; tic; time; toe; tree; uct; use; ● ●
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        item: #569 of 1243
          id: ap-224
      author: Ismail, Ashraf Fouad Hafez
       title: Class Representation of Shapes Using Qualitative-codes
        date: 2001-01-03
       words: 11774
      flesch: 59
     summary: • The second A-code (Axx-code) set QA2: � �Q A A A A A A A AA nil2 0 0 0� � � � � � � � � � �, , , , , , , . • L- code set QL2: � �Q L L L L L L LL 2 0 0 0� � � � � � � � � � �, , , , , , .
    keywords: 3/2001; acta; adjacent; aggregation; angle; attributes; change; characteristics; circuit; class; code; complete; conceptual; connected; contour; convexity; curvature; curve; czech; description; design; different; direction; discrete; edge; eds; encoding; false; figure; finite; following; formalism; geometric; granularity; house; http://ctn.cvut.cz/ap/; information; interval; labels; landmark; length; line; magnitude; modeling; multiple; new; nodes; numeric; order; particular; patterns; point; polytechnica; possible; previous; primary; properties; property; publishing; qcodes; qsentence; qualitative; qualitative shape; range; reasoning; regions; relative; representation; scanning; scheme; sequence; set; sets; shape; shape representation; sign; single; singular; smaller; spatial; symbolic; symbols; table; tangential; technical; terms; true; university; value; vertex; vol; � k; � y; � z
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        item: #570 of 1243
          id: ap-2241
      author: Duras, Julia; Kalentev, Oleksander; Schneider, Ralf; Matyash, Konstantin; Lüskow, Karl Felix; Geiser, Jürgen
       title: ELECTROSTATIC ION THRUSTERS - TOWARDS PREDICTIVE MODELING
        date: 2015-02-28
       words: 4215
      flesch: 65
     summary: Keywords: Ion thruster, Monte-Carlo method, terrestrial testing of thrusters, interaction with vessel walls. Modeling strategy The most complete model resolving all time scales of ion thrusters would be a direct coupling of a kinetic plasma model with a molecular dynamics model for the walls.
    keywords: 10−4; angle; angular; carlo; channel; deposited; deposition; different; distribution; emission; emitted; end; energy; erosion; exit; fig; figure; flux; fraction; interaction; ion; ion thruster; ions; like; maximum; measurements; model; modeling; monte; order; particles; plasma; plume; poloidal; propulsion; source; space; sputtered; surface; terrestrial; test; testing; thruster; total; vacuum; vessel; vessel walls; walls
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        item: #571 of 1243
          id: ap-2244
      author: Lisuch, Julius; Dorcak, Dusan; Spisak, Jan
       title: EFFECTIVE USE OF ROTARY FURNACE SHELL HEAT
        date: 2014-12-31
       words: 3407
      flesch: 64
     summary: [%] Q material ln 508 0.54 Q medium ln 518 0.55 Q brought from furnace shell through primary air 5000 5.34 Q burner 87600 93.56 Sum 93626 100 Escaped heat [%] QH2O evaporated 654 0.71 Q decomposition MgCO3 31304 33.82 Q decomposition CaCO3 2498 2.70 Q decomposition FeCO3 453 0.49 Q medium Out 34934 37.74 Q mematerial Out 12890 13.93 Q furnace shell losses 4825 5.21 Q brought from furnace shell through primary air 5000 5.40 Sum 92558 100 Table 5.
    keywords: air; batch; burning; ccsrf; clinker; combustion; cooling; figure; flue; fuel; furnace; furnace shell; gas; heat; increase; inner; lining; losses; magnesite; material; printing; process; processes; rotary; rotary furnace; shell; shell heat; simulation; slovakia; state; surface; table; technical; technological; temperature; thermal; total; transfer; ts1; use
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        item: #572 of 1243
          id: ap-2252
      author: Kelar, Jakub; Čech, Jan; Slavíček, Pavel
       title: ENERGY EFFICIENCY OF PLANAR DISCHARGE FOR INDUSTRIAL APPLICATIONS
        date: 2015-04-30
       words: 2283
      flesch: 60
     summary: Keywords: dielectric barrier discharge; DCSBD; electrical efficiency; power estimation; error analysis. The artificially introduced current-voltage waveform distortions lead to relatively small errors in power estimation of the order of a few percent, even when relatively bad experimental conditions are assumed (i.e., phase shift < 50 ns and noise level < 2 bits).
    keywords: air; atmospheric; barrier; current; dcsbd; device; dielectric; discharge; efficiency; electrodes; energy; errors; estimation; experimental; fig; figure; high; input; integration; measured; measurements; noise; non; phase; physics; planar; plasma; power; pressure; shift; source; surface; voltage; waveforms
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        item: #573 of 1243
          id: ap-2257
      author: Ondac, Peter; Horacek, Jan; Seidl, Jakub; Vondrácek, Petr; Müller, Hans Werner; Adámek, Jirí; Nielsen, Anders Henry
       title: COMPARISON BETWEEN 2D TURBULENCE MODEL ESEL AND EXPERIMENTAL DATA FROM AUG AND COMPASS TOKAMAKS
        date: 2015-04-30
       words: 5904
      flesch: 60
     summary: The differences in the simulations were in radial boundary conditions (Neumann or Dirichlet) for plasma density, plasma potential, radial electric field and electron tem- perature, value of the the neoclassical Pfirsch-Schlüter perpendicular collisional diffusion coefficient for parti- cles D′⊥n, value of parallel loss time for particles τ ′ ‖n or in the form of the bracket Ψ in the last term in the equation (9) (where the exponential form is shown). The gradient of the radial profile of plasma density in the ESEL simulations matching the ASDEX Upgrade plasma is too small compared with the experiment.
    keywords: agreement; asdex; asdex upgrade; ball; compass; computational; data; density; diffusion; direction; dissipation; domain; edge; electric; electron; equation; esel; esel model; experimental; exponential; field; figure; fluctuations; form; garcia; increase; layer; lcfs; line; linear; loss; magnetic; mean; measured; measurements; model; parallel; particle; pen; physics; plasma; plasma density; plasma potential; poloidal; potential; probes; profile; radial; region; relative; sheath; simulations; sol; solid; temperature; term; time; tokamak; transport; turbulence; upgrade; value; vol
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        item: #574 of 1243
          id: ap-226
      author: Haghi, A. K.
       title: A Mathematical Model of theDrying Process
        date: 2001-01-03
       words: 2558
      flesch: 51
     summary: These parameters include the operation conditions of the dryer, such as the initial moisture content of the leather, heat and mass transfer coefficients, drying air moisture content, and dryer air temperature. The effect of drying air moisture content, and the calcu- lated results of the model are shown in Figure 6.
    keywords: adobe; air; calculated; center; coefficients; constant; content; difference; dryer; drying; effect; false; fig; figure; heat; high; humidity; initial; leather; mass; mathematical; model; moisture; moisture content; parameters; rate; rise; small; surface; temperature; time; transfer; true; vol
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        item: #575 of 1243
          id: ap-2263
      author: Chatthong, Boonyarit; Onjun, Thawatchai
       title: STUDY OF L–H TRANSITION AND PEDESTAL WIDTH BASED ON TWO-FIELD BIFURCATION AND FIXED POINT CONCEPTS
        date: 2015-08-31
       words: 5219
      flesch: 66
     summary: [ χneo + χano 1 + α(ν′E)2 ] ∂p ∂x = H(x,t), (1) ∂n ∂t − ∂ ∂x [ Dneo + Dano 1 + α(ν′E)2 ]∂n ∂x = S(x,t), (2) where p is plasma pressure, n is plasma density, χneo and Dneo represent the neoclassical transport coeffi- cients, χano and Dano represent the anomalous trans- port coefficients, ν′E is the flow shear suppression, α is a positive constant representing the strength of the suppression, and H and S are the thermal and particle sources, localized at the center and at the edge of the plasma, respectively. Evidently, the change in parti- cle source has a greater effect on plasma density than on plasma pressure.
    keywords: anomalous; anomalous transport; barrier; bifurcation; case; central; central plasma; central pressure; confinement; constant; critical; density; equations; figure; fixed; flow; flux; fluxes; formation; function; fusion; gradient; heat; lowest; mode; neoclassical; particle; pedestal; pedestal width; phys; physics; plasma; plasma density; plasma pressure; point; pressure; profiles; results; shear; source; stable; state; steady; strength; study; suppression; thermal; threshold; times; transition; transport; value; width
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        item: #576 of 1243
          id: ap-2265
      author: Bogachev, Nikolay Nikolaevich; Bogdankevich, Irina L.; Gusein-Zade, Namik G.; Sergeychev, Konstantin F.
       title: OPERATION MODES AND CHARACTERISTICS OF PLASMA DIPOLE ANTENNA
        date: 2015-02-28
       words: 2992
      flesch: 65
     summary: Keywords: plasma antenna, surface electromagnetic wave, numerical simulation, operation modes, metal monopole, radiation pattern. In recent years much plasma antenna research has been done by theoretical, numerical and experimental methods [1–11].
    keywords: antenna; asymmetric; case; characteristics; cm−3; column; curve; density; dipole; dispersion; electromagnetic; experimental; fig; frequency; linear; mad; metal; modes; numerical; operation; parameters; pattern; plasma; plasma antenna; radiation; results; simulation; surface; wave; ωew; ωew0
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        item: #577 of 1243
          id: ap-2266
      author: Casas, David; Barriga-Carrasco, Manuel D.; Andreev, Alexander A.; Schnürer, Matthias; Morales, Roberto
       title: PROTON STOPPING POWER OF DIFFERENT DENSITY PROFILE PLASMAS
        date: 2015-04-30
       words: 3079
      flesch: 63
     summary: Keywords: stopping power, laser-accelerated protons, density profile targets, energy loss, bound electrons, free electrons, plasma physics. In this last case, it is important to study energy loss of an ion beam that passes through a plasma target to understand the interactions of swift particles with nuclear fusion fuel pellet.
    keywords: abel; acta; atomic; barriga; beam; calculated; calculation; carrasco; density; dielectric; different; electron; energy; equation; figure; free; function; high; i(r; i(y; interpolation; inversion; ionized; laser; lateral; loss; low; means; methods; physics; plasma; points; polytechnica; power; profile; proton; radial; radius; review; rpa; set; stopping; target; velocity
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        item: #578 of 1243
          id: ap-2269
      author: Blaško, Marian; Tittel, Viktor; Náplava, Antonín; Ondruška, Michal
       title: INJECTION MOLDING AND STRUCTURAL ANALYSIS IN METAL TO PLASTIC CONVERSION OF BOLTED FLANGE JOINT BY CAE
        date: 2014-12-31
       words: 1732
      flesch: 58
     summary: Mechanical properties of fiber reinforced parts are strongly in- fluenced by fiber orientation resulting from injection molding process. Injection molding analysis was performed on ac- tual flange model with corresponding feed system and injection molding parameters.
    keywords: analysis; cae; crack; design; fiber; figure; flange; gf30; injection; isotropic; load; material; mechanical; metal; molding; mpa; orientation; pa66; plastic; preliminary; principal; properties; simulation; stress; structural
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        item: #579 of 1243
          id: ap-2270
      author: Lahuta, Martin; Pátek, Zdeněk; Szöllös, András
       title: COMPUTATIONAL AERODYNAMIC OPTIMIZATION OF LOW-SPEED WING
        date: 2014-12-31
       words: 4021
      flesch: 54
     summary: Typical geometric constraints that can be used are: wing area, wing span, wing aspect ratio, wing taper ratio, wing twist, wing dihedral, wing swept angle. Airfoil sections It is necessary to create a database of the airfoils used on the wing in advance, because the aerodynamic characteristics of the airfoils used on the wing and their positions along the wingspan are used as inputs for wing optimization.
    keywords: adaptation; aerodynamic; airfoil; algorithms; angle; archive; area; characteristics; coefficient; coello; constraints; criterion; curve; description; design; differential; drag; ea1; elitist; evolutionary; figure; flow; genetic; geometric; individuals; lift; local; low; maximum; method; multi; new; non; objective; operators; optimization; parameter; pareto; point; population; random; range; reinitialization; span; speed; standard; statistics; target; tip; twist; value; vector; wing
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        item: #580 of 1243
          id: ap-2272
      author: Vítku, Jaroslav; Nahodil, Pavel
       title: TOWARDS EVOLUTIONARY DESIGN OF COMPLEX SYSTEMS INSPIRED BY NATURE
        date: 2014-10-31
       words: 7878
      flesch: 59
     summary: The figure shows that the framework uses simple communication in the network, while a transformation from/to a symbolic (or other) domain is implemented inside a particular Neural Module (depicted as Modem in the schematics), if needed. Configuration of a Neural Module This type of Neural Module can implement various types of information processing.
    keywords: able; action; agent; algorithm; anns; approach; architecture; artificial; behavior; best; communication; complex; current; data; design; environment; evolutionary; example; experiments; exploration; figure; fitness; following; framework; hand; hybrid; ind1; inputs; knowledge; lambda; learning; means; module; motivation; network; neural; neural module; new; node; order; outputs; parameters; particular; physiological; physiological module; position; prosperity; reinforcement; representation; reward; rga; simulation; soga; source; state; step; sub; systems; task; time; use; utility; value; variable; way
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        item: #581 of 1243
          id: ap-2274
      author: Hájková, Pavlína; Tichý, David; Čmelík, Jiří; Antoš, Petr
       title: IMMOBILISATION OF HUMIC SUBSTANCES USING PLASMA MODIFICATION
        date: 2015-04-30
       words: 3098
      flesch: 60
     summary: The column apparatus was filled with PP fabrics. The total area of PP fabrics was 62.8 cm2, and it was dripped by an aqueous solution of cadmium salts with a flow rate of 0.5 ml/min.
    keywords: acids; analysis; aqueous; atmospheric; barrier; cadmium; capacity; cd2; chemical; cm2; column; concentration; content; dbd; dielectric; discharge; electrodes; fabric; group; higher; hss; humate; humic; immobilized; metals; modification; modified; nonwoven; particles; plasma; polypropylene; potassium; pp fabric; pressure; salts; samples; sem; solution; sorption; substances; surface; treatment; vol; water; xps
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        item: #582 of 1243
          id: ap-2275
      author: Šulc, Radek; Pešava, Vít; Ditl, Pavel
       title: LOCAL VELOCITY PROFILES MEASURED BY PIV IN AN VESSEL AGITATED BY RUSHTON TURBINE
        date: 2014-12-31
       words: 4623
      flesch: 59
     summary: Keywords: mixing, Rushton turbine, Particle Image Velocimetry, flow, velocity profile, mean velocity, fluctuation velocity. For dimensionless velocities independent of the impeller rotational speed, the tur- bulence intensity should also be independent from the impeller rotational speed.
    keywords: acceptable; agitated; area; axial; calculated; chebyshev; components; dimensionless; direction; effect; figure; flow; fluctuation; fluctuation velocity; form; fořt; hypothesis; impeller; independent; intensity; investigated; local; mean; mean velocity; measured; parameter; polynomials; profile; radial; range; region; rotational; rushton; speed; time; turbine; turbulence; values; velocities; velocity; velocity profiles; vessel; vol; |t|
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        item: #583 of 1243
          id: ap-2277
      author: Maturkanič, Dušan
       title: EFFECT OF THE FLOW FIELD DEFORMATION IN THE WIND TUNNEL ON THE AERODYNAMIC COEFFICIENTS
        date: 2015-06-30
       words: 6692
      flesch: 61
     summary: Asymmetry of the speed profile The specific speed V SYM indicates the size of the cor- responding difference between the local speeds and defined flow field speed in the wind tunnel. However, the same value of this specific speed could represent various kinds of flow field non-uniformities.
    keywords: aerodynamic; air flow; asymmetry; axis; case; character; coefficients; considered; differences; direction; disproportion; effect; field deformation; field non; field rotation; fig; figure; flow field; flow speed; intensity; kinds; local; local speed; measured; measurements; model; non; normal speed; parameter; plane; profiles; radial speed; range; relation; rotary flow; rotation; sectors; specific speed; speed; speed component; speed difference; speed disproportion; speed profile; speed v; tangential speed; uniformity; value; vortex field; vortex flow; vortices; wind tunnel
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        item: #584 of 1243
          id: ap-228
      author: Safan, M.; Kohoutková, A.
       title: Influence of Different Drying Conditions on High Strength Concrete Compressive Strength
        date: 2001-01-03
       words: 3592
      flesch: 56
     summary: In the current research, crushed dolomite was used in two high strength concrete mixes with 0.0 and 10 percent silica fume addition to evaluate the influence of five different drying conditions on high strength concrete compressive strength evaluated at 3, 7, 28 days. High strength concrete offers greater compressive strength per unit cost, weight, and volume associated with improved mechanical properties such as modulus of elasticity and ten- sile strength.
    keywords: addition; adobe; age; ages; aggregate; astm; c33; case; cement; compressive; concrete; conditions; content; crushed; cubes; curing; czech; days; development; different; false; fig; fume; high; hsc; hydration; mix; mixes; mixing; process; publishing; ratios; sand; silica; size; specimens; strength; technical; temperature; true; university; vol; water
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        item: #585 of 1243
          id: ap-2289
      author: Stuchlík, Zdenek; Urbanec, Martin; Kotrlová, Andrea; Török, Gabriel; Goluchová, Katerina
       title: RESONANT SWITCH MODEL OF HF QPOS AND EQUATIONS OF STATE OF NEUTRON STARS AND QUARK STARS
        date: 2014-10-31
       words: 3222
      flesch: 70
     summary: Neutron star models are constructed under the Hartle–Thorne theory of slowly rotating neutron stars calculated using the observationally given rotational frequency frot Resonant switch model The RS model
    keywords: arxiv; astro; atoll; best; data; eos; fit; fitting; frequencies; frequency; mass; model; neutron; neutron star; oscillations; oscillatory; parameters; point; precision; qpos; relations; resonant; rp1; rs model; source; spin; star; state; switch; twin
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        item: #586 of 1243
          id: ap-2297
      author: Stodůlka, Jiří; Šafařík, Pavel
       title: ANALYSIS OF TRANSONIC FLOW PAST CUSPED AIRFOILS
        date: 2015-06-30
       words: 3221
      flesch: 65
     summary: Keywords: oblique shock; shock polar; trailing edge; cusped airfoil; transonic flow; CFD. Introduction To this day, transonic flow has represented a very chal- lenging topic.
    keywords: airfoil; analysis; angle; azimuthal; behavior; case; chord; classical; cusped; design; dynamics; edge; fig; figure; flow; gas; lower; mach; methods; numerical; oblique; parameters; pressure; profile; ratio; results; sharp; shock; solution; supersonic; theory; trailing; transonic; value; wave
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        item: #587 of 1243
          id: ap-230
      author: Haghi, A. K.
       title: Investigation into Airborne Dust ina Wool Textile Mill
        date: 2001-01-03
       words: 2720
      flesch: 56
     summary: Microscope magnification is a critical parameter which enables the detection of dust particles and distinguishes them from filter surface features. The aim of this work is to deepen the understanding of the factors relevant to this problem by conducting a survey of the nature of airborne wool dust in an industrial environment.
    keywords: acta; airborne; collection; counts; czech; dust; electron; fields; filter; fraction; health; house; http://ctn.cvut.cz/ap/; inorganic; length; mass; materials; membrane; particles; polytechnica; present; processing; publishing; respiratory; samples; sampling; section; size; surface; table; technical; total; university; vol; wool
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        item: #588 of 1243
          id: ap-2307
      author: Mego, Michal; Kocifaj, Miroslav; Kundracik, František
       title: A SYSTEM AND A DEVICE FOR ISOLATING CIRCULATING TUMOR CELLS FROM THE PERIPHERAL BLOOD IN VIVO
        date: 2015-08-31
       words: 2984
      flesch: 54
     summary: Magnetic nanoparticles The system with magnetic nanoparticles covered by monoclonal antibodies against a common epithelial antigen (EpCAM) is used to isolate circulating tumor cells from the peripheral blood. The proposed system consists of magnetic nanoparticles covered by monoclonal antibodies against a common epithelial antigen, large supermagnets, which are used to control the position of the nanoparticles within the human body, and a special wire made of a magnetic core wrapped in a non-magnetic shell.
    keywords: acta; antibody; applications; blood; cancer; cannula; cells; clin; core; ctcs; detection; epcam; epithelial; field; figure; force; hematopoietic; isolated; isolation; large; limited; magnetic; magnets; metastatic; methods; nanoparticles; non; patients; pellets; peripheral; peripheral blood; polytechnica; research; slovak; small; special; system; tumor; tumor cells; vein; venous; vivo; volume; wire
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        item: #589 of 1243
          id: ap-232
      author: Ismail, Ashraf Fouad Hafez
       title: Evolved Representation and Computational Creativity
        date: 2001-01-03
       words: 8988
      flesch: 56
     summary: Keywords: computational creativity, evolved representation, design processes, evolutionary algorithms, search space. 41 No. 3/2001 Exploration (E) Transformation (T) creative zone non-creative zone transition zone mundane (m) mundane (m) novel (n) novel (n) original (o) original (o) Fig. 8: Framework to classify design processes in terms of exploration and transformation (from [14]) tion’ would therefore be ‘mundane’.
    keywords: 3/2001; acta; artificial; basic; basic genes; basic representation; certain; combination; computational; creation; creative; creativity; czech; design; design process; different; eds; evolutionary; evolved; evolved representation; example; features; figure; fitness; focus; genes; genotype; gero; house; http://ctn.cvut.cz/ap/; human; individuals; influence; knowledge; length; level; likely; limited; meta; method; new; number; original; phenotype; polytechnica; population; possible; process; processes; program; publishing; representation; search; search space; set; shape; space; symbols; system; technical; transformation; university; use; user; way
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        item: #590 of 1243
          id: ap-2321
      author: Šafarík, Pavel; Nový, Adam; Jícha, David; Hajšman, Miroslav
       title: ON THE SPEED OF SOUND IN STEAM
        date: 2015-12-31
       words: 3020
      flesch: 66
     summary: The results for wet steam are very close (lower than 2 % difference) to the values for the speed of sound in wet steam, derived according to (1), see Fig. 3, where a detail of the h–s (enthalpy– entropy) diagram for water and steam is depicted. The speed of sound in steam solved by means of the model for solving the thermodynamic parameters of steam downstream from a normal shock wave 3.1 Results of the solution for the speed of sound 4 The speed of sound in wet steam in the metastable region 4.1 Equilibrium speed of sound 4.2 Frozen speed of sound 4.3 Metastable speed of sound 5 Conclusions List of symbols Acknowledgements References
    keywords: balance; calculated; constant; data; downstream; dryness; enthalpy; equilibrium; gas; iapws; line; metastable; model; normal; parameters; phase; pressure; region; shock; sound; specific; speed; state; steam; temperature; thermodynamic; values; water; wave; wet; wet steam
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        item: #591 of 1243
          id: ap-2326
      author: Durcansky, Peter
       title: COMPARISON OF MATHEMATICAL MODELS FOR HEAT EXCHANGERS OF UNCONVENTIONAL CHP UNITS
        date: 2015-08-31
       words: 3455
      flesch: 62
     summary: The most fre- quently investigated feature of heat exchangers is the heat exchange surface, from which all the other pa- rameters of the exchanger are derived. The regenerator (R) functions as a heater or cooler and enables energy storage, while in the Ericsson engine the cooler and heater are separate heat exchangers and he efficiency of the machine is not as significantly affected by the volume of the regenerator as in the case of the Stirling engine.
    keywords: account; acta; air; air engine; biomass; bundle; calculation; combustion; compressor; cross; design; elements; energy; engine; ericsson; exchanger; figure; flow; gas; gases; heat; heat exchanger; heat transfer; hot; inlet; internal; mathematical; medium; mesh; methods; model; number; numerical; nusselt; polytechnica; regenerator; section; simulation; stirling; temperature; transfer; tubes; use; volume
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        item: #592 of 1243
          id: ap-2328
      author: Sovják, Radoslav
       title: AN EXPERIMENTAL INVESTIGATION INTO MOISTURE-INDUCED EXPANSION OF PLASTERS
        date: 2015-06-30
       words: 2332
      flesch: 58
     summary: Contactless measurement is introduced and a coefficient of moisture expansion for different building plasters is established. A higher coefficient of moisture expansion generally means higher stress and higher demand on the me- chanical properties [8].
    keywords: acta; coefficient; content; engineering; expansion; experimental; figure; hygric; laser; materials; maximum; measuring; moisture; old; plaster; polytechnica; prague; range; reference; relative; samples; sensor; strain; study; tab; temperature; university; water; year
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        item: #593 of 1243
          id: ap-234
      author: Bokr, J.; Jáneš, V.
       title: A Logic Object and its State
        date: 2001-01-03
       words: 5940
      flesch: 64
     summary: Hence, the finite automaton model of a static logical object (which automatically performs virtual state transitions from q to q) is the ordered triad � � �X Y Z U R � , , where R is the Mealy output function: i) � � � � � � � � � � � �R: X Y U x y u� : , � for � 0, ii) � � � � � � � � � � � � � � � �R: X Y Z U x y z u� � : , , � for � 1. S U S : s u s� � � � � � �� 1 1, � for � 0 ii) � � � � � � � �� � � � � � � � �:S U Z S s u z s� � 1 1: , , � for � 1 and the injective Moore output function � � � � � � � �:: :S Y s y � , when � � N0, � � N (A is a set of natural numbers denoting moments, N0 = N � {0}).
    keywords: automaton; canonical; control; czech; d �; decomposition; division; dynamic; entity; false; finite; function; j �; k s; logic; logical; model; n �; object; pseudoobject; relation; s e; s s; s x; s y; s z; spec; sr �; state; static; substitute; table; train; transition; true; x k; x y; y �; � /01; � /10; � fig; � proj; � s; � x; � �
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        item: #594 of 1243
          id: ap-236
      author: Elsayed, Ashraf El-Shahat; Grünwald, A.; Synáčková, M.; Slavíček, M.
       title: Modelling of Highway Runoff Quantity and Quality
        date: 2001-01-03
       words: 4516
      flesch: 57
     summary: Data verification Due to the shortage of measured data and the necessity to study some important concepts such as runoff peak flow, pol- lutant accumulation and first flush phenomena, simulated data were used for studying these concepts. Keywords: Stormwater Management Model, highway runoff, quantity, quality, first flush.
    keywords: 3/2001; acta; adobe; bod5; buildup; concentration; constituents; contaminations; czech; data; dry; duration; event; false; fig; flow; flush; highway; house; http://ctn.cvut.cz/ap/; intensity; management; measured; model; module; n =; peak; pollutant; polytechnica; prague; process; publishing; quality; quantity; rainfall; rate; results; runoff; simulated; simulation; solids; stormwater; study; subcatchment; surface; suspended; swmm; system; technical; time; total; transport; true; tss; units; university; volume; washoff
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        item: #595 of 1243
          id: ap-238
      author: Kaiser, J.; Košťál, E.
       title: Colorimetry and TV Colour Splitting Systems
        date: 2001-01-03
       words: 3499
      flesch: 56
     summary: The existence of negative parts of the colour matching functions � � � � � �r g b� � �, , causes complications by optical separation of partial pictures R, G, B in the classic scanning system. The summing curve of colour matching functions � �x � , � �y � , � �z � and � �r � , � �g � , � �b � is shown in Fig.
    keywords: adobe; air; b �; camera; channels; colorimetric; colour; components; czech; device; display; false; fig; filters; functions; ideal; image; light; matching; optical; partial; positive; prism; reflectances; reflections; reproduction; rgb; scanning; second; sensitivities; spectral; splitting; system; technical; true; university; vol; wavelenght; xyz; z �; � ay; � g; � y; � �
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        item: #596 of 1243
          id: ap-240
      author: Safan, M.; Kohoutková, A.
       title: Experiments with Externally Prestressed Continuous Composite Girders
        date: 2001-01-03
       words: 5835
      flesch: 57
     summary: [8]. 3 Research significance The literature addressing prestressing of composite beams showed that more attention has been devoted to the study of internally prestressed continuous beams, while those prestressed by external continuous tendons have received less attention, specially as regards experimental testing. A finite element method for the study of creep and shrinkage effects in composite beams with deformable shear connection.
    keywords: acta; adobe; beam; beam b; capacity; carrying; characteristics; composite; composite beam; concrete; construction; continuous; cracking; cracks; czech; deflection; deviated; diameter; different; experimental; extension; external; false; fig; flange; force; girders; higher; house; http://ctn.cvut.cz/ap/; inner; length; load; loading; means; non; number; percent; performance; polytechnica; prestressed; prestressed beam; prestressing; publishing; response; section; serviceability; slab; span; stages; steel; steel beam; strength; structure; support; technical; tendon; terms; testing; time; true; ultimate; university; value; vol; width; yield
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        item: #597 of 1243
          id: ap-242
      author: Munro, C.; Krus, P.
       title: Rapid Prediction of Configuration Aerodynamics in the ConceptualDesign Phase
        date: 2001-01-04
       words: 3073
      flesch: 45
     summary: Advances in flight control certainly allow for a wide variation in vehicle design that would not otherwise be possible. Further- more, the subscale model can be built early in the design pro- cess (perhaps late in the conceptual phase) whereas the fullscale demonstrator can only be tested after design work is essentially complete.
    keywords: aerodynamic; aircraft; analysis; computational; conceptual; configurations; control; cost; data; design; dynamics; early; elements; empirical; experimental; fig; flight; flow; high; initial; level; low; methods; modelling; models; novel; number; operational; performance; prediction; process; requirements; results; risk; significant; simulation; stage; subscale; team; testing; time; tools; tunnel; ucavs; validation; vehicle; vol; water; wind; work
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        item: #598 of 1243
          id: ap-244
      author: Holický, M.
       title: Prospects for Advanced Engineering Design Based on Risk Assessment
        date: 2001-01-04
       words: 3856
      flesch: 53
     summary: i ij � � , P P . Note, however, that this value is valid for the fire start probability pfi, s = P(H2)
    keywords: analysis; assessment; assumed; basic; bayesian; c17(12; chance; conditional; considered; cost; design; events; example; failure; figure; fire; flashover; holický; network; node; parent; pfi; probabilistic; probabilities; probability; protection; related; risk; schleich; situation; state; structural; system; table; total; traditional; uncertainties; utility; variables
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        item: #599 of 1243
          id: ap-2445
      author: Šoltés, Martin; Červenka, Milan
       title: ELECTRODYNAMIC LOUDSPEAKER-DRIVEN ACOUSTIC COMPRESSOR
        date: 2015-10-31
       words: 3606
      flesch: 59
     summary: Acoustic pressure amplitudes that they obtained were more than an order of magnitude larger than it had been possible before. Optimal shaping of acoustic resonators for the generation of high-amplitude standing waves.
    keywords: acoustic; acoustic compressor; acoustic pressure; air; air flow; amplitude; cavity; characteristic; clamp; compressor; delivery; delivery valve; different; displacement; driver; experimental; figure; flow; frequency; high; hose; housing; input; jasa; loudspeaker; maximum; measured; node; port; possible; pressure; pressure amplitude; rate; reed; resonance; resonator; shape; standing; static; static pressure; valve; voltage; volume; wall; wave
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        item: #600 of 1243
          id: ap-2449
      author: Attia, Abdel-Fattah A.
       title: INTELLIGENT CONTROLLER FOR TRACKING A 14-INCH CELESTRON TELESCOPE
        date: 2018-10-31
       words: 3838
      flesch: 64
     summary: “Modified PSO for optimal tuning of fuzzy PID controller.” The whole system operation is defined based on traditional fuzzy con- trollers (SFLCs) and PSO parameters in Table 4. (2.)
    keywords: abdel; acceleration; acta; adaptive; algorithm; attia; axis; best; celestron; classical; controllers; dec; error; fattah; figure; flc; functions; fuzzy; improved; input; logic; membership; mfs; model; mpso; optimization; output; parameters; particle; performance; pid; polytechnica; position; pso; pso controllers; response; results; rules; sec; section; sets; sflc; swarm; system; table; telescope; time; tracking; tuning; value; variables; velocity
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        item: #601 of 1243
          id: ap-2459
      author: Kracík, Petr; Pospíšil, Jiří
       title: EFFECT OF TUBE PITCH ON HEAR TRANSFER IN SPRINKLED TUBE BUNDLE
        date: 2015-10-31
       words: 3880
      flesch: 74
     summary: Keywords: sprinkled; tube bundle; heat transfer; tube pitch. Beside the above mentioned falling film liquid flow rate (tested [5] for ex- ample) they are for instance tube diameters (tested [6] for example), tube pitches in a bundle (tested [7] for example) or a physical condition of a falling film liquid and heat transfer (tested [8–10] for example).
    keywords: approx; bundle; coefficient; exchanger; figure; film; film liquid; flow; flow rate; gap; gradient; heat; heat transfer; increase; liquid; litres; measured; minute; mode; pitch; pitches; rate; results; sprinkled; surface; temperature; tested; thermal; transfer; transfer coefficient; tube; tube bundle; value; vol; water
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        item: #602 of 1243
          id: ap-246
      author: Alfaro-Cid, E.; McGookin, E. W.; Murray-Smith, D. J.
       title: Genetic Algorithm Optimisation of a Ship Navigation System
        date: 2001-01-04
       words: 4737
      flesch: 54
     summary: i i tot � � � � � �� � � � �2 1 3 2 2 2 1 2 0 . The new cost is calculated as [7]: � � � � � � � �Cost Pos SP SP Pos Nchrom � � � � �2 2 1 1 1 .
    keywords: actual; axis; chromosome; controller; cost; error; force; function; gain; genetic; good; heading; input; model; navigation; new; number; optimisation; order; parameters; performance; pid; population; possible; process; propulsion; response; results; selection; ship; signal; simulations; solutions; study; surge; table; thrust; time; tracking; tuning; university; values; velocity; vessel; � �
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        item: #603 of 1243
          id: ap-2460
      author: Zemčík, Oskar; Sedlák, Josef; Chladil, Josef
       title: CHANGES IN THE SURFACE LAYER OF ROLLED BEARING STEEL
        date: 2015-10-31
       words: 2158
      flesch: 64
     summary: This paper describes changes observed in bearing steel due to roller burnishing. Hydrostatic roller burnishing was selected as the most suitable method for performing roller burnishing on hardened bearing steel.
    keywords: acta; austenite; bearing; burnishing; changes; deformation; depth; element; figure; finite; force; hydrostatic; layer; material; method; plastic; polytechnica; residual; roller; roughness; significant; simulation; steel; stress; surface; surface layer; tool; values; vol; workpiece
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        item: #604 of 1243
          id: ap-2461
      author: Jílková, Lenka; Ciahotný, Karel; Kusý, Jaroslav
       title: PYROLYSIS OF BROWN COAL USING A CATALYST BASED ON W–Ni
        date: 2015-10-31
       words: 2614
      flesch: 61
     summary: Pyrolysis of Brown Coal Using a Catalyst Based on W–Ni Fig. 5: Content of compounds (selected by functional groups) in organic parts of pyrolysis condensates 0 5 10 15 20 25 30 35 40 45 pyrolysis of brown coal pyrolysis of brown coal + alum. pyrolysis of brown coal + alum. 2: Content of phenol, 1,2-benzenediol and acetic acid in water parts of pyrolysis condensates 0 5 10 15 20 25 30 35 40 pyrolysis of brown coal pyrolysis of brown coal + alum. pyrolysis of brown coal + alum.
    keywords: alumina; brown; brown coal; carbon; catalyst; coal; composition; compounds; condensates; content; fig; gas; gases; groups; hydrogen; liquid; mass; organic; parts; phenol; products; properties; pyrolysis; sample; temperature; water
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        item: #605 of 1243
          id: ap-2463
      author: Havlík, Jan; Dlouhý, Tomáš
       title: CONDENSATION OF WATER VAPOR IN A VERTICAL TUBE CONDENSER
        date: 2015-10-31
       words: 3995
      flesch: 62
     summary: Experimental set-up Experiments for testing and for validating these meth- ods for HTC calculations are carried out on a vertical shell-and-tube heat exchanger, in which the condens- ing water vapor flows downwards in vertical tubes and the cooling water countercurrent flows in the shell part. Condensation in vertical tubes (2.)
    keywords: analysis; bell; calculation; condensate; condensation; condensation htc; condenser; delaware; diameter; experimental; fig; film; flow; gas; heat; htc; impact; method; model; number; nusselt; overall; overall htc; process; results; reynolds; shell; steam; temperature; theoretical; theory; transfer; tube; value; vapor; velocity; vertical; vertical tube; water
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        item: #606 of 1243
          id: ap-248
      author: Pohl, J.; Warell, A.; Krus, P.; Palmberg, J.-O.
       title: Conceptual Design of a Hydraulic Valve Train System
        date: 2001-01-04
       words: 5116
      flesch: 57
     summary: The advantage with this type of valve train system is that the hydraulic piston remains due to the check-valve in the ex- tend position irrespective of the solenoid valves state. Thus solenoid valves closing characteris- tic is not critical a critical parameter.
    keywords: 5/2001; accelerate; acta; actuation; approach; cam; check; closing; component; concept; conceptual; consumption; design; downwards; dynamic; energy; engine; experiments; figure; flow; flumes; function; high; hydraulic; lift; main; means; model; non; objective; oil; opening; optimisation; order; overall; phaser; piston; polytechnica; pressure; process; product; return; set; simulated; simulation; solenoid; specification; spring; stage; stroke; system; technical; test; time; train; train system; tree; university; valve; valve train; variable; variable valve; vol
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        item: #607 of 1243
          id: ap-2495
      author: Skočilas, Jan; Palaziuk, Ievgen
       title: CFD SIMULATION OF THE HEAT TRANSFER PROCESS IN A CHEVRON PLATE HEAT EXCHANGER USING THE SST TURBULENCE MODEL
        date: 2015-08-31
       words: 4816
      flesch: 57
     summary: A simulation allows us to clearly demonstrate that the phenomenon of non-uniform distribution of the fluid is a major factor affecting the performance of plate heat exchangers, which can be weakened by rolling guide area in the corrugated board [8]. [10] Freund S., Kabelac S.: Investigation of local heat transfer coefficients in plate heat exchangers with temperature oscillation IR thermography and CFD.
    keywords: acta; analytical; angle; ansys; calculation; cases; cfd; channels; characteristics; chevron; coefficient; considered; coolant; corrugation; design; different; distribution; drop; engineering; exchanger; experimental; exponents; figure; flow; fluid; geometry; heat; heat exchanger; heat transfer; higher; hydraulic; inclination; increase; issn; journal; main; mass; model; number; numerical; parameters; performance; plate; plate heat; presence; pressure; pressure drop; process; resistance; results; reynolds; simulation; surface; temperature; transfer; transfer coefficient; turbulence; values
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        item: #608 of 1243
          id: ap-250
      author: Kolman, D.
       title: Analysis of a Thermal Plasma Diamond CVD System
        date: 2001-01-04
       words: 2403
      flesch: 49
     summary: The focus of this paper is on the second stage – the interaction of the plasma flow (plasma jet) with the surround- ing atmosphere and with the substrate located downstream. In our case, the torch orifice diameter = 6 mm, plasma velocity 30 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 41
    keywords: analysis; axial; boundary; chemical; conditions; consideration; czech; data; deposition; diamond; enthalpy; equations; exit; experimental; flow; gas; jet; measurements; model; modeling; nozzle; paper; plasma; pressure; reactor; results; species; substrate; surface; system; technical; temperature; theoretical; thermal; torch; turbulent; university; velocity
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        item: #609 of 1243
          id: ap-252
      author: Chlupová, A.; Heger, J.; Vašek, A.
       title: Fatigue Crack Initiation and Early Growth in GLARE 3 Fiber-metal Laminate Subjected to Mixed Tensile and Bending Loading
        date: 2001-01-04
       words: 2710
      flesch: 59
     summary: The number of cycles necessary for fatigue crack initiation in metal layers of the laminate was determined by the local plastic strain at the notch edge in the individual layers. In this study, attention is paid to the effect of mixed tension and bending loading on fatigue crack initiation and early growth in an open-hole sheet specimen.
    keywords: bending; crack; crack growth; cycles; czech; effect; element; experimental; fatigue; fibers; figure; finite; glare; growth; hole; initiation; inner; laminate; layer; length; loading; local; max; metal; mpa; notch; number; rate; sheet; specimen; strain; stress; surface; tension
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        item: #610 of 1243
          id: ap-2536
      author: Hádková, Kristýna; Tekáč, Viktor; Ciahotný, Karel; Beňo, Zdeněk; Vrbová, Veronika
       title: TREATMENT OF NATURAL GAS BY ADSORPTION OF CO2
        date: 2015-12-31
       words: 3561
      flesch: 63
     summary: Apart from burning, one of the possible uses of natural gas is as a fuel for motor vehicles. There are two types of fuel from natural gas — CNG (Compressed Natural Gas) or LNG (Liquefied Natural Gas).
    keywords: 13x; adsorbent; adsorber; apparatus; atmospheric; atmospheric pressure; c46; capacity; carbon; case; co2; depressurization; desorption; evacuation; gas; inlet; lng; mixture; molecular; molecular sieve; mpa; natural; natural gas; nitrogen; pressure; sieve; surface; tested; thermal; valves; volume
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        item: #611 of 1243
          id: ap-254
      author: Macek, J.; Takáts, M.
       title: Involvement of Thermodynamic Cycle Analysis in a Concurrent Approach to Reciprocating Engine Design
        date: 2001-01-04
       words: 6123
      flesch: 58
     summary: i i N CH j j � � � � � � � � , , , ; � � � � � � � � � �m t C m t CH j j d d d r*s r � � . i i N i i j j � � � � � � � � � � � � � � d d , , , , � � � � �� �i j i j j jA w m t , , .
    keywords: 5/2001; acta; algorithms; analysis; approach; case; changes; closures; combustion; compression; configuration; conservation; constant; cycle; czech; described; design; diagram; efficiency; energy; engine; enthalpy; entropy; equation; experiments; fig; finite; flow; flux; gas; general; heat; high; house; http://ctn.cvut.cz/ap/; j j; k j; k t; macek; mass; matrix; methods; model; new; optimisation; p t; polytechnica; pressure; procedure; publishing; reaction; real; set; specific; state; structure; suitable; system; t j; t t; technical; temperature; terms; thermodynamic; university; volume; volumetric; yields; � h; � j
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        item: #612 of 1243
          id: ap-256
      author: Murray-Smith, D. J.
       title: The Validation of Computer-based Models in Engineering: Some Lessons from Computing Science
        date: 2001-01-04
       words: 3356
      flesch: 40
     summary: No. 4 – 5/2001 45 The Validation of Computer-based Models in Engineering: Some Lessons from Computing Science D. J. Murray-Smith Questions of the quality of computer-based models and the formal processes of model testing, involving internal verification and external validation, are usually given only passing attention in engineering reports and in technical publications. For example version control techniques are routinely used in software development but are seldom applied in a rigorous fashion for simulation model development, maintaining the model throughout its life cycle
    keywords: acta; analysis; application; appropriate; computer; control; cycle; design; development; documentation; emphasis; engineering; errors; experimental; external; flight; frame; important; linear; mathematical; methods; model; modelling; murray; performance; polytechnica; process; processes; quality; real; simulation; smith; software; system; systematic; techniques; testing; theory; tools; validation; verification; vol
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        item: #613 of 1243
          id: ap-2575
      author: Beniak, Juraj; Križan, Peter; Matúš, Miloš
       title: A COMPARISON OF THE TENSILE STRENGTH OF PLASTIC PARTS PRODUCED BY A FUSED DEPOSITION MODELING DEVICE
        date: 2015-12-31
       words: 4802
      flesch: 60
     summary: This again points to the brittleness of the model produced from ABS plastic material using FDM technology. The aim of this paper is to show the tensile strength value for parts produced from different materials on the Fused Deposition Modeling device when the horizontal orientation of the specimens is changed.
    keywords: abs; change; conventional; degree orientation; degrees; degrees fig; devices; different; different layers; direction; elongation; fdm; fibers; fig; horizontal; layers; manufacturing; material; measured; model; orientation; parts; pla; plane; plastic; properties; prototyping; rapid; samples; software; specimen; strength; strength values; structure; table; technology; tensile; tensile strength; test; values
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        item: #614 of 1243
          id: ap-2578
      author: Hanakova, Lenka; Socha, Vladimir; Schlenker, Jakub; Cakrt, Ondrej; Kutilek, Patrik
       title: ASSESSMENT OF POSTURAL INSTABILITY IN PATIENTS WITH A NEUROLOGICAL DISORDER USING A TRI-AXIAL ACCELEROMETER
        date: 2015-08-31
       words: 5511
      flesch: 58
     summary: This method is used for diagnosing cerebellar disease manifested by tremors or by swaying, since it is primarily designed for use in neurology to dis- cover relationships between neurological disorders and postural trunk movements in 3-D space. 233 L. Hanakova, V. Socha, J. Schlenker et al. Acta Polytechnica 5.
    keywords: //dx.doi.org/10.1016; accelerations; accelerometer; acta; age; analysis; angles; anterior; assessment; axial; balance; body; cerebellar; clinical; closed; confidence; control; czech; data; differences; disease; disorders; doi:10.1016; ellipsoid; engineering; et al; eyes; fig; fis; fos; healthy; http; imu; matrix; measured; measurements; median; method; movements; mtx; neurological; patients; points; polytechnica; posterior; postural; posture; prague; pts; quiet; rehabilitation; results; set; stability; stance; standing; statistical; study; subjects; surface; sway; system; test; tri; trunk; unit; university; use; variables; ves; vestibular; volume
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        item: #615 of 1243
          id: ap-258
      author: Vyhlídal, T.; Zítek, P.
       title: Control System Design Based on a Universal First Order Model with Time Delays
        date: 2001-01-04
       words: 3893
      flesch: 67
     summary: Simplifying (7) the following expressions are obtained � �� � � � � � � � arccos cosKku u u (8) � � � � � � T u u u u � �sin tan cos� � � � � � � . If model (5) is used, the analogous controller results � � � � � �� � �� � C s Ts s K Ps s Fs s � � � � � � � � exp exp exp � � �1 .
    keywords: angle; complex; control; controller; couple; delay; dominant; dynamics; equation; exp; feedback; figure; frequency; gain; higher; imc; input; loop; means; method; model; order; parameters; plane; point; poles; position; real; response; set; state; step; system; time; value; zeros
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        item: #616 of 1243
          id: ap-260
      author: Vacek, J.
       title: Stress Distribution in a Coal Seam before and after Bump Initiation
        date: 2001-01-04
       words: 2330
      flesch: 69
     summary: We observed the mechanism and the history of coal bumps. 5 Conclusion A combination of experimental and mathematical models appears very appropriate for a study of the stress distribu- tion in a coal seam before and after bump initiation.
    keywords: 5/2001; acta; araldite; bump; cell; coal; cycles; czech; distribution; experimental; fig; force; initiation; loading; meters; model; particles; photo; polytechnica; rock; seam; stress; technical; tum; tum tum; university; vacek; vol
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        item: #617 of 1243
          id: ap-262
      author: Menzies, R.
       title: Computational Investigation of Flows in Diffusing S-shaped Intakes
        date: 2001-01-04
       words: 3893
      flesch: 59
     summary: A feature of s-duct intake flow is the genera- tion of secondary flow off the first bend as described in the introduction. One of the main problems of turbulence closures in intake flows is the transition of the freestream from laminar to turbulent over the intake cowl region.
    keywords: 5/2001; acceleration; acta; aircraft; bend; calculations; case; complex; computational; cowl; data; duct; engine; engine face; euler; experiment; face; fig; figure; flow; flow case; fluid; freestream; grid; high; intake; mass; mass flow; model; plane; polytechnica; port; prediction; pressure; previous; problems; rans; region; results; secondary; secondary flow; sst; starboard; time; turbulence; university; vol
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        item: #618 of 1243
          id: ap-264
      author: Strohmayer, A.
       title: Improving Aircraft Design Robustness with Scenario Methods
        date: 2001-01-04
       words: 4045
      flesch: 47
     summary: As shown in Figure 2, there are essentially three fundamental aspects of scenario implementation in aircraft design: definition of market requirements, design evaluation, and identification of the level of technology to implement in the new design. Keywords: aircraft design, scenario methods, requirements, design evaluation, technology strategy. quantified, environmental regulations concerning noise and emissions as well as airport compatibility requirements have to be met, and airworthiness, i.e. controllability and integrity within the whole flight envelope has to be assured.
    keywords: 5/2001; acta; aircraft; aircraft design; analysis; aspects; baseline; characteristics; concept; configuration; criteria; customer; czech; definition; design; development; different; economic; environment; evaluation; example; factor; figure; future; house; http://ctn.cvut.cz/ap/; long; manufacturer; market; methods; needs; new; order; phase; polytechnica; process; product; project; publishing; relevant; requirements; results; robust; robustness; scenario; selection; set; situation; specific; standards; strategy; technical; technology; transport; university; vol
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        item: #619 of 1243
          id: ap-266
      author: Marková, J.; Holický, M.
       title: Credibility of Design Procedures
        date: 2001-01-04
       words: 4069
      flesch: 49
     summary: If for example the reliability of a structural element stems from a comparison between action effects E and resistance R, then the probability of structural failure can be expressed as � � � � �P P E R FE R R E f d� � � � � � � � � 0 (6) where �E() is the density function of variable E, FR() is the dis- tribution function of variable R, and � denotes a generic point of E and R. 4 Credibility The probability that the random process � �� �w tX J, exceeds in time t the calculated value of crack width w(xk, t) determined in accordance with the relevant standards is expressed as � � � �� �� P w t w , twc kP� � �x X J, � 0 (11) where J(t) is the rectangular wave renewal vector process, represented here by the short-term and long-term compo- nents of the imposed load.
    keywords: aci; analysis; basic; calculated; cases; concrete; crack; crack width; cracking; credibility; czech; design; factors; fig; function; index; limit; load; models; probability; reinforcement; reliability; respect; selected; serviceability; slab; standards; states; structural; theoretical; time; ultimate; values; variables; vector; verification; vol; width; čsn
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        item: #620 of 1243
          id: ap-268
      author: Friedl, J.
       title: Aerodynamic Design of a Tailless Aeroplan
        date: 2001-01-04
       words: 2659
      flesch: 70
     summary: 5: Computed variation of CLmax with increasing Re number Re �0 CL� CLmax �w �0 CL� �CL� [deg]
    keywords: acta; aerodynamic; aeroplane; airfoil; analysis; angle; cases; characteristics; coefficient; curve; czech; data; deg; design; fig; geometry; lift; method; moment; n60r150; panel; polytechnica; span; speed; table; tip; twist; university; vol; wing; wzk
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        item: #621 of 1243
          id: ap-270
      author: Vukazich, S.; Marek, P.
       title: Structural Design Using Simulation Based Reliability Assessment
        date: 2001-01-04
       words: 4744
      flesch: 57
     summary: The load effect combination at the critical section of the beam can be expressed as: S q L F L F L� � �var var var 2 1 28 4 3 . In this manner, the deformation of the tank can be expressed as: � � � � � �u x t x Z t, � � .
    keywords: acceleration; acta; analysis; assessment; bar; beam; czech; design; effects; engineering; equivalent; example; factors; failure; fig; function; histogram; house; http://ctn.cvut.cz/ap/; level; load; marek; mass; maximum; output; polytechnica; pressure; probability; properties; publishing; quantities; reliability; resistance; response; safety; sbra; section; serviceability; simulation; star; steel; structure; tank; truss; university; values; variable; vol; wall; water
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        item: #622 of 1243
          id: ap-272
      author: Schieck, F.; Schmitt, D.
       title: Cargo Aircraft Conceptual Design Optimisation Using a Flexible Computer-Based Scaling Approach
        date: 2001-01-04
       words: 4437
      flesch: 46
     summary: Keywords: aircraft conceptual design, aircraft scaling, mass growth factor, aircraft multidisciplinary design optimisation. Relying on this data, important trade-off decision-making processes during aircraft conceptual design are enabled and backed up with extended knowledge about the evolving aircraft.
    keywords: acta; aircraft; algorithm; approach; area; baseline; cargo; certain; change; climb; computer; conceptual; current; design; detail; drag; early; example; fastr; figure; flexible; fuel; http://ctn.cvut.cz/ap/; knowledge; lift; mass; merit; methods; minimum; mission; model; module; operational; optimisation; overall; parameter; performance; phase; point; polytechnica; process; project; range; rate; required; requirements; results; run; scaling; section; set; solution; system; table; technical; total; university; variables; vol; wing
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        item: #623 of 1243
          id: ap-274
      author: Rieger, F.
       title: Power Characteristics of a Screw Agitator in a Tube
        date: 2001-01-06
       words: 1679
      flesch: 58
     summary: Keywords: power, power characteristic, screw agitator, pump. agitator power characteristic agitator pumping characteristic hydraulic characteristic of agitating system P Q e Fig.1: Estimation of power consumption from operating characteristics (creeping flow region) 0 200 400 600 800 1000 1200 0 500 1000 1500 2000 2500 �e* P * 48.7–54.2 152–155.8 199.1–202 358.4–363.5 514.5–517.7 1.9–11.1 Re Fig. 2: Power characteristics at different Reynolds number values presented in [3].
    keywords: agitator; characteristics; czech; dimensionless; energy; fig; flow; number; power; pumping; region; reynolds; rieger; screw; specific; tube; values
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        item: #624 of 1243
          id: ap-276
      author: Fořt, I.; Jirout, T.; Rieger, F.; Allner, R.; Sperling, R.
       title: Study of the Blending Efficiency of Pitched Blade Impellers
        date: 2001-01-06
       words: 4232
      flesch: 64
     summary: 1: Typical dependence of dimensionless blending time on the Reynolds number for a high-speed rotary impeller The initial concentration is defined as � �� �c c t0 0� � (5) and the final concentration of the dissolved matter in the agitated liquid is � �� �c c tk � . The quantity Po depends on the geometry of the system agitated by a PBI and this dependence can be expressed by the equation [7] � � � � � � � �Po T D h D H T n� � �1 507 0 365 0
    keywords: agitated; angle; blade; blending; calculated; clearance; concentration; criterion; czech; degree; diameter; different; dimensionless; efficiency; energetic; fig; flow; homogeneity; homogenization; impeller; liquid; mixed; mixing; mpa; number; pitch; process; ratio; system; time; total; values; vessel; viscosity; volume
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        item: #625 of 1243
          id: ap-278
      author: Böszörményi, L.; Böszörményi, G.
       title: A Geothermal Energy Supported Gas-steam Cogeneration Unit as a Possible Replacement for the Old Part of a Municipal CHP Plant (TEKO)
        date: 2001-01-06
       words: 2893
      flesch: 57
     summary: CHP combined heating and power plant GT gas turbine cycle ST steam turbine WHB waste heat boiler C condenser HE heat exchanger HP heat pump mFWH mass flow of secondary geothermal water used for heating feed water mDH mass flow of secondary geothermal water used for use in the DHN mSCGH mass flow of the secondary carrier of geothermal heat 2 The simple, direct use of geothermal heat in the District Heating Network (DHN) cannot be a feasible way of replacing the existing CHP plant under the current economic circumstances, due to its low efficiency.
    keywords: boiler; böszörményi; chp; cogeneration; combined; concept; cycle; dhn; efficiency; energy; fossil; fuels; gas; geothermal; geothermal energy; geothermal heat; geothermal water; heat; heating; košice; low; output; parameters; plant; power; production; pump; renewable; secondary; secondary geothermal; sources; steam; steam cycle; teko; turbine; unit; utilization; waste; water; year
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        item: #626 of 1243
          id: ap-280
      author: Beshay, K. R.; Kratěna, J.; Fořt, I.; Brůha, O.
       title: Power Input of High-Speed Rotary Impellers
        date: 2001-01-06
       words: 3319
      flesch: 69
     summary: 6/2001 Power Input of High-Speed Rotary Impellers K. R. Beshay, J. Kratěna, I. Fořt, O. Brůha This paper presents the results of an experimental investigation of the power input of pitched blade impellers and standard Rushton turbine impellers in a cylindrical vessel provided with four radial baffles at its wall under a turbulent regime of flow of an agitated liquid. 2: Sketch of pitched blade impellers (Czech standard CVS 691020)
    keywords: angle; blade; clearance; czech; diameter; experimental; fig; impeller; input; large; liquid; measured; motor; number; pitch; power; range; results; reynolds; rig; rushton; small; speed; srti; standard; test; torque; turbine; university; vessel
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        item: #627 of 1243
          id: ap-2808
      author: Juklíček, Jakub; Železný, Václav
       title: CFD ANALYSIS OF THE SPACER GRIDS AND MIXING VANES EFFECT ON THE FLOW IN THE CHOSEN PART OF THE TVSA-T FUEL ASSEMBLY
        date: 2015-10-31
       words: 2626
      flesch: 64
     summary: Nevertheless, this kind of simula- tion provides comparative data for more significant simplifications of the fuel assembly geometry or for replacement of the part or whole spacer grid geometry by the porous media boundary condition in CFD simu- lation. One of the limiting factors is the complicated geometry of spacer grids.
    keywords: analysis; area; assembly; boundary; cells; cfd; character; computational; cross; effect; fig; figure; flow; fuel; geometry; grid; mesh; mixing; mixing vanes; parts; simplified; simulation; spacer; spacer grid; support; tvsa; vanes; velocity; volumes
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        item: #628 of 1243
          id: ap-2813
      author: Žitný, Rudolf; Landfeld, Aleš; Skočilas, Jan; Štancl, Jaromír; Flegl, Vlastimil; Houška, Milan
       title: UNSTEADY FLOW OF THIXOTROPIC COLLAGEN SUBSTANCE IN PIPES
        date: 2015-10-31
       words: 4116
      flesch: 60
     summary: Such a slow variation of flow rate increases the number of time steps (4100 time steps for 151 grid points in the axial direction) and increases the run-time necessary for preliminary identification of thixotropic model parameters. 2D model of velocities and structural parameter profiles (finite differences) Results that are probably more realistic can be obtained by taking into account non-uniform structural parame- ter profiles.
    keywords: acta; axial; bulkley; characteristic; collagen; constant; czech; diffusion; doi:10.1016; equation; fig; flow; fluid; herschel; houska; hydraulic; hysteresis; journal; mechanics; method; model; newtonian; non; numerical; parameter; pipe; polytechnica; pressure; previous; profile; radial; rate; rheological; shear; stress; structural; s−1; thixotropic; time; transport; unsteady; value; velocities; velocity; wall; zitny; τ?y
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        item: #629 of 1243
          id: ap-282
      author: Doubek, J.; Kreidl, M.
       title: Parasitic Events in Envelope Analysis
        date: 2001-01-06
       words: 8209
      flesch: 76
     summary: No. 6/2001 1 x t( ) 0 �1 Fig. 9: Invariant part of the harmonic signal Equation (23) can be decomposed by equation (24) to equation (25) � � � � � � � � � �cos cos cos sin sin� � � � � � (24) and thus � � � � � � � � � �~ cos cos sin sin x t t z z z t z z z z z z z � � � � �� 1 0 0 0 0 1 2 1 � � � � � � � d d 2 � � � � � � � � � � . Si z Si� � � � � � � � � � � 1 0 0
    keywords: b t; calculation; cosx t; e t; e �; envelope; equation; figure; fmax �; g t; harmonic; pulse; signal; sin �; t ci; t et; t gt; t si; t t; t t1; t �; time t; txt �; y t; z t; � =; � cos; � h; � s; � y; � �
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        item: #630 of 1243
          id: ap-284
      author: Younis, F. I.; Alawy, A. El-Bassuny; Šimák, B.; Ella, M. S.; Madkour, M. A.
       title: Stellar Image Interpretation System using Artificial Neural Networks: Unipolar Function Case
        date: 2001-01-06
       words: 3932
      flesch: 66
     summary: 3.6 SIIS-ANN implementation The developed SIIS-ANN deals with CCD image frames for scanning and searching for the Local Central Peaked Pixel (LCPP) whose datum is larger than those of the surrounding ones [9, 10]. Mark the object of interest (star image, cosmic ray event, or noise) on some CCD frames.
    keywords: ann; artificial; astronomical; astronomy; case; ccd; cosmic; czech; daophotii; data; engineering; error; fig; frame; images; input; layer; learning; method; network; neural; noise; normalised; objects; output; pattern; pixel; present; ray; set; siis; star; stellar; system; technical; test; training; university; values; window
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        item: #631 of 1243
          id: ap-286
      author: Badawy, M.; Richta, K.
       title: Deriving Triggers from Integrity Constraint Specifications in the Database Management Systems
        date: 2001-01-06
       words: 4502
      flesch: 74
     summary: The cell and the request have to pass the path three times and the total time period needed for the cell transport � �Ts it 1 , i n� 1, ,� , is � � � � � � RM Data 1 2 3 Fig. 1: The flow of counted RM cells The symbols denote: M – distribution function of the cell interarrival time is exponential with the mean 1 0 � �, � � � and the ar- rival times are independent; M – distribution function of the cell service time is expo- nential with the mean 1 0 � �, � � � and the service times are independent; 1 – system with one place in service; m – system of queue length m. Notation used in the following text: � – average arrival intensity; � – average service rate; � � �� – traffic intensity.
    keywords: cell; data; destination; fig; k k; k n; mean; model; network; path; period; refusal; source; switch; switches; time; traffic; transport; value; w k
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        item: #632 of 1243
          id: ap-2865
      author: Biroš, Milan; Kyslan, Karol; Ďurovský, František
       title: A HARDWARE-IN-THE-LOOP SIMULATOR BASED ON REAL SKODA SUPERB VEHICLE AND RT-LAB/CARSIM
        date: 2015-12-31
       words: 4222
      flesch: 63
     summary: Skoda Superb vehicle simulator, rear view. This is because the vehicle has the best power transmission from the engine to the pavement with a particular slip value included in vehicle model.
    keywords: 22k; acta; angle; available; behavior; brake; card; carsim; components; control; cost; daq; digital; driver; driving; engine; fig; figure; forces; game; gear; hardware; hil; input; knob; lab; lever; line; loop; model; output; parameters; pedal; polytechnica; position; range; real; real vehicle; research; results; sensor; sequence; shifting; signal; simulator; skoda; software; speed; steering; steering wheel; superb; systems; time; use; vehicle; visualization; voltage; wheel
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        item: #633 of 1243
          id: ap-288
      author: Filip, J.
       title: Analytical Model of Modified Traffic Control in an ATM Computer Network
        date: 2001-01-06
       words: 4503
      flesch: 74
     summary: The cell and the request have to pass the path three times and the total time period needed for the cell transport � �Ts it 1 , i n� 1, ,� , is � � � � � � RM Data 9 8 ) 2 3 Fig. 1: The flow of counted RM cells The symbols denote: M – distribution function of the cell interarrival time is exponential with the mean 1 0 � �, � � � and the ar- rival times are independent; M – distribution function of the cell service time is expo- nential with the mean 1 0 � �, � � � and the service times are independent; 1 – system with one place in service; m – system of queue length m. Notation used in the following text: � – average arrival intensity; � – average service rate; � � �� – traffic intensity.
    keywords: cell; data; destination; fig; k k; k n; mean; model; network; path; period; refusal; source; switch; switches; time; traffic; transport; value; w k
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        item: #634 of 1243
          id: ap-290
      author: Pokorná, O.; Mocková, D.
       title: Models of Financing and Available Financial Resources for Transport Infrastructure Projects
        date: 2001-01-06
       words: 2208
      flesch: 47
     summary: A typical feature of transport infrastructure projects is that they are expensive and take a long time to construct. 2 Available financial resources Finance resources for transport infrastructure projects can be divided into public and alternative.
    keywords: build; capital; cash; construction; contracts; debt; development; financial; financing; flow; guarantees; infrastructure; investments; long; models; operation; participation; period; private; private sector; project; public; public sector; resources; return; revenue; risk; sector; state; transport; transport infrastructure; type
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        item: #635 of 1243
          id: ap-292
      author: Římal, J.
       title: Measurement of Temperature Fields in Long Span Concrete Bridges
        date: 2001-01-06
       words: 3393
      flesch: 66
     summary: These most important factors are combined into the equivalent sun-temperature Tas expressed in equation (1) � �T T I pas a g� � 1 � (1) where Ta � Ta(t) air temperature Ig � Ig(t) intensity of global solar radiation � � �(v) heat-transfer coefficient depending on air speed p coefficient of surface absorption t time Keywords: Nusle bridge in Prague, measurement of thermal fields, calculation of temperature fields, evaluation of stress fields.
    keywords: acta; bridge; c o; c r; czech; d e; e m; e n; e s; e t; fields; fig; house; http://ctn.cvut.cz/ap/; measurement; n c; o n; polytechnica; publishing; r e; stresses; structure; technical; temperature; thermal; time; university; vol
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        item: #636 of 1243
          id: ap-294
      author: Ficker, T.; Myslín, J.; Podešvová, Z.
       title: Non-linear Temperature Profiles
        date: 2001-01-06
       words: 2427
      flesch: 62
     summary: The solution of the system (20), (21) for parabolic conduc- tivity function (15) and the boundary conditions T ( 0) � T1, T ( d) � T2 reads � � � � q T T d T T T T d a T T Reff � � � � � � � �1 2 1 0 3 2 0 3 1 2 3 � , (27) � �� � � �� � � � � � � � � � x a T x T T x T a T T a T T T T a T T � � � � � � � � � � � 0 3 0 0 1 0 3 2 0 3 0 2 1 1 0 3 3 3 � � d, (28) � � � �� � � � R d a T T T T T T T T eff * � � � � � � � � � 1 0 2 1 0 2 0 2 0 2 0 3 � � d eff� , (29) � � � � � �� � � �� �� �� � � � � � � �eff T T T T� � � � � �13 1 2 1 0 2 0 0 . 2 Variable thermal conductivity Let us assume a dry material inside a wall whose thermal conductivity � depends only on temperature T ( x) � �� �d d � T x x 0.
    keywords: conductivity; constant; dependence; fig; function; heat; linear; non; parabolic; profile; range; t t; temperature; thermal; � eff
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        item: #637 of 1243
          id: ap-2942
      author: Halabuk, Dávid; Martinec, Jiří
       title: CALCULATION OF STRESS AND DEFORMATION IN FUEL ROD CLADDING DURING PELLET-CLADDING INTERACTION
        date: 2015-12-31
       words: 2207
      flesch: 62
     summary: It is possible to evaluate which shape of fuel pellet is the most appropriate in consideration of stress and deformation forming in fuel cladding, axial dilatation of fuel, and radial temperature distribution in the fuel rod, based on the obtained results. The calculations are done for 4 different shapes of fuel pellets.
    keywords: alloy; analysis; axial; calculation; central; chamfered; cladding; contact; deformation; difference; dilatation; dished; fuel; hole; interaction; mpa; nuclear; pellet; properties; reactor; results; rod; rods; shape; state; stress; temperature; thermal
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        item: #638 of 1243
          id: ap-2945
      author: Kratky, Lukas; Jirout, Tomáš
       title: MECHANICAL DISINTEGRATION OF WHEAT STRAW BY ROLLER-PLATE GRIND SYSTEM WITH SHARP-EDGED SEGMENTS
        date: 2015-04-30
       words: 7025
      flesch: 60
     summary: [7] studied the effect of wheat straw particle size on the efficiency of biogas digesters operating on agricultural and for- est residues. [6] studied the effect of wheat straw particles on biogas yield and on residue production in anaerobic technology.
    keywords: acta; anaerobic; average; biodegradability; biogas; biogas production; biomass; chemical; cod; colloid; compressive; content; demand; determined; disintegrated; disintegration; energy; experiments; fibrous; figure; forces; gap; grinder; grinding; hammer; impact; increase; jirout; kratky; kwh; kwh t−1; lignocellulosic; material; mechanical; methane; mill; milled; milling; moisture; nm3; particle; plate; polytechnica; power; pretreatment; process; production; requirement; results; retting; roller; rotational; segments; shear; sieve; size; solids; specific; speed; straw; technology; temperature; time; total; t−1; untreated; wet; wheat; wheat straw; wt%; yield
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        item: #639 of 1243
          id: ap-2950
      author: Petrů, Jan; Kludka, Michal; Krivda, Vladislav; Mahdalova, Ivana; Zeman, Karel
       title: VERIFICATION OF CENSUS DEVICES IN TRANSPORTATION RESEARCH
        date: 2015-12-31
       words: 4193
      flesch: 66
     summary: NU-METRICS NC-200 and NU-METRICS NC-30x traffic analyzer The Nu-Metrics NC-200 traffic analyser is used for measuring vehicle speed, and the intensity and com- 415 http://dx.doi.org/10.14311/AP.2015.55.0415 http://ojs.cvut.cz/ojs/index.php/ap J. Petru, M. Kludka, V. Krivda et al. This article evaluates and subsequently compares data obtained from various counting devices measur- ing the intensity of traffic on a roundabout in the city of Ostrava.
    keywords: analyzer; article; average; categories; city; comparison; counting; data; devices; difference; direction; fig; icoms; intensity; intersection; kph; lane; length; location; manual; measured; measurement; measuring; methods; metrics; nc-200; number; ostrava; percentage; place; radar; respective; results; road; speed; tms; traffic; truck; value; vehicles; viacount; viacount ii; video
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        item: #640 of 1243
          id: ap-296
      author: Attia, Abdel-Fattah; Horáček, P.
       title: Modeling Nonlinear Systems by a Fuzzy Logic Neural Network Using Genetic Algorithms
        date: 2001-01-06
       words: 5237
      flesch: 67
     summary: In the gen- eral case the intervals of acceptable values for every MF shape forming parameter (e.g., �c � [c11, c22], and �� � [�11, �22] for Gaussians) may be determined by solving formulas (8), (9), and (10). �11, and �22 can easily be found from the following four equations: � � � � � � � � G c c G c
    keywords: 2nd; act; acta; algorithm; chromosome; constraints; control; crisp; czech; data; fig; flnn; function; fuzzy; gaussian; genetic; input; laga; layer; learning; line; logic; membership; mfs; model; modeling; network; neural; optimization; order; output; parameters; polytechnica; population; process; reference; rule; search; section; sets; shape; sin; systems; technical; time; university; values; vol; � y; � �
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        item: #641 of 1243
          id: ap-2966
      author: Lisý, Martin; Baláš, Marek; Špiláček, Michal; Skála, Zdeněk
       title: OPERATING SPECIFICATIONS OF CATALYTIC CLEANING OF GAS FROM BIOMASS GASIFICATION
        date: 2015-12-31
       words: 3933
      flesch: 51
     summary: The efficiency of tar elimination reached 99.5 %, the tar concentration complied with limits for use of the gas in combustion engines, and the tar content reached approximately 35 mg/m3n. The fundamental classification dis- tinguishes between primary and secondary measures for tar elimination.
    keywords: acta; air; analysis; baláš; bed; biofluid; biomass; biomass gasification; calcination; catalyst; catalytic; cleaning; co2; composition; conditions; content; cracking; dolomite; efficiency; elimination; energy; engineering; filter; flow; fluidized; fuel; gas; gasification; gasifier; high; higher; inlet; lisý; m3n; material; methods; natural; operating; outlet; partial; polytechnica; pressure; primary; reactions; research; results; sampling; secondary; specifications; steam; suitable; syngas; table; tar; tar elimination; technology; temperature; use; verification; wood
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        item: #642 of 1243
          id: ap-2970
      author: Nasisi, Salvatore; Valášek, Michael; Vampola, Tomáš
       title: AN INTERPOLATION METHOD FOR DETERMINING THE FREQUENCIES OF PARAMETERIZED LARGE-SCALE STRUCTURES
        date: 2015-12-31
       words: 5757
      flesch: 47
     summary: doi:10.2514/6.2009-2432 [18] H. Panzer, R. Eid, B. Lohmann, Parametric model order reduction by matrix interpolation, Automatisierungstechnik, 58 (2010) 475-484. Although this scheme seems attractive due to the use of reduced matrices and available functions for computing interpolating poly- nomials, it produces ineffective results.
    keywords: accuracy; acta; analyses; application; components; computation; continuum; decomposition; deformation; design; different; direct; element; engineering; equations; error; example; figure; finite; frequencies; frequency; hexapod; interest; interpolation; interpolation method; large; length; linear; mass; matrices; matrix; mechanics; method; model; number; order; parameters; parametric; point; polar; polytechnica; process; reduction; results; rigid; rom; roms; rotation; rsdm; second; solid; space; stiffness; stretch; structure; svd; system; time; use; values
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        item: #643 of 1243
          id: ap-2974
      author: Dragošek, Lukáš; Kociško, Róbert; Kováčová, Andrea; Bidulsky, Robert; Škrobian, Milan
       title: A COMPACTING PROCESS OF THE EN AW 6060 ALLOY
        date: 2015-10-31
       words: 2597
      flesch: 61
     summary: Moreover, it was recognized that in the process of small chips compacting, there was obtained lower density than in the case of large chips. Compacting chips The two types of chips were compacted under identical conditions (weight 2, 5, 10 g; compacting pressure 300, 400, 500, 600, 700 MPa; and speed 0.83 mm/s).
    keywords: a.e; acta; aluminium; chips; compacting; conditions; density; die; distribution; doi; experimental; extrusion; figure; final; forward; friction; height; journal; large; materials; method; porosity; pressure; process; processing; ratio; sample; significant; small; technology; tekkaya; types
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        item: #644 of 1243
          id: ap-2978
      author: Holčapek, Ondřej; Vogel, Filip; Konvalinka, Petr
       title: ANALYSIS OF MECHANICAL PROPERTIES OF HYDROTHERMALLY CURED HIGH STRENGTH CEMENT MATRIX FOR TEXTILE REINFORCED CONCRETE
        date: 2015-10-31
       words: 4421
      flesch: 49
     summary: Hydrothermal curing in an autoclave device (with a combination of high pressure and temperature, under the simultaneous effect of steam) provides a sophis- ticated possibility to achieve high final strength in a short time after the first contact between water and cement (approximately 2 days). The bulk density growth is as- 317 O. Holčapek, F. Vogel, P. Konvalinka Acta Polytechnica sociated with denser microstructure and hydration products due to hydrothermal curing conditions.
    keywords: autoclave; cement; characteristics; compressive; compressive strength; concrete; conditions; curing; days; different; dynamic; elasticity; experimental; figure; flexural; frcm; high; higher; holčapek; hours; hydrothermal; konvalinka; material; matrix; mechanical; modulus; mpa; performance; pressure; process; production; properties; research; samples; specimens; steel; strength; temperature; textile; time; uhpc; values; vol; water
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        item: #645 of 1243
          id: ap-298
      author: Kršňák, I.; Kolcunová, I.
       title: Partial Discharge Measurements in HV Rotating Machines in Dependence on Pressure of Coolant
        date: 2002-01-01
       words: 2395
      flesch: 53
     summary: Keywords: partial discharges, stator insulation, high voltage rotating machine, phase resolved partial discharge analysis. In technical and scientific literature, the influence of pres- sure on partial discharge measurement has not been handled very often.
    keywords: adobe; coefficient; collisions; coolant; discharge; electrical; electron; energy; false; field; fig; free; gas; high; higher; inception; ionisation; kpa; machines; mean; measurements; partial; particles; path; pdf; phase; pressure; strength; technical; temperature; theoretical; true; value; voltage
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        item: #646 of 1243
          id: ap-2982
      author: Havrlik, Michal; Ryparová, Pavla
       title: PROTECTION OF WOODEN MATERIALS AGAINST BIOLOGICAL ATTACK BY USING NANOTECHNOLOGY
        date: 2015-04-30
       words: 4367
      flesch: 64
     summary: 108 Acta Polytechnica 55(2):101–108, 2015 1 Introduction 2 The experimental part 3 Materials and methods 3.1 Production of PVA solution 3.2 Produce of nanofiber textiles 3.3 Model organism 3.4 Plate experiment 3.5 Experiment on building block of timber 3.6 Fungicidal activity of polymer solution on agar plate 3.7 Fungicidal activity of nanofiber textiles on agar plate 3.8 Fungicidal activity of polymer solution on wooden blocks 3.9 Fungicidal activity of nanofiber textiles on wooden blocks 4 Results 4.1 Fungicidal activity of polymer solution on agar plate 4.2 Fungicidal activity of nanofiber textiles on agar plate 4.3 Fungicidal activity of polymer solution on wooden blocks 4.4 Fungicidal activity of nanofiber textiles on wooden blocks 5 Discussion and conclusion 5.1 Solutions and textiles 5.2 PVA 5.3 Protective biocide ions 5.4 Summary Acknowledgements References Production of PVA solution The base polymer which we used in this work, is a polyvinyl alcohol (PVA).
    keywords: acta; activity; agar; agents; biocidal; biocide; biological; block; building; civil; concentration; copper; czech; days; development; efficiency; engineering; evaluation; experiment; figure; fungicidal; growth; ions; lignofix; materials; mixture; mold; mycelium; nanofiber; nanofiber textiles; organism; plate; polymer; polytechnica; prague; profi; properties; protection; pure; pva; results; ryparová; samples; silver; solution; textiles; timber; treatment; type; vol; wood; wooden; xxx
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        item: #647 of 1243
          id: ap-2983
      author: Kühnel, M.; Müller, S.; Kreykenbohm, I. Kreykenbohm; Schwarm, F.-W.; Grossberger, C.; Dauser, B. T.; Nowak, M. A.; Pottschmidt, K.; Ferrigno, C.; Rothschild, R. E.; Klochkov, D.; Staubert, R.; Wilms, J.
       title: SIMULTANEOUS FITS IN ISIS ON THE EXAMPLE OF GRO J1008–57
        date: 2015-04-30
       words: 3144
      flesch: 57
     summary: Furthermore, it is necessary to distinguish between group parameters and global parameters. Global parameters denote parameters which act on all datagroups.
    keywords: acta; analysis; available; calculations; data; datagroup; datasets; dependency; different; example; fits; fitting; flux; functions; global; group; implementation; individual; isis; j1008–57; large; law; model; multiple; parallel; parameters; polytechnica; power; ray; results; runtime; section; simultaneous; single; spectra; transient; uncertainties; uncertainty; vol; xspec
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        item: #648 of 1243
          id: ap-300
      author: Dynda, V.; Rydlo, P.
       title: Large-scale File System Design and Architecture
        date: 2002-01-01
       words: 4838
      flesch: 59
     summary: � Cryptography for securing user data and support for any appropriate cipher algorithm to protect data. Keywords: file system, replication schema, data protection, consistency, data locating.
    keywords: access; algorithm; architecture; availability; clients; consistency; data; design; distributed; edges; example; expansion; fig; file; file system; filters; gaston; gfs; graph; high; large; location; managers; means; necessary; neighbor; network; node; number; order; partition; protection; rcnt; read; replica; replication; requests; rm4; rmi; rmj; scale; scheme; security; servers; storage; support; system; test; time; transaction; users; vol; write
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        item: #649 of 1243
          id: ap-3006
      author: Kronek, Jakub; Žitný, Rudolf
       title: FINITE ELEMENT ANALYSIS OF AORTAL BIFURCATION
        date: 2015-12-31
       words: 5074
      flesch: 58
     summary: The solution (Mises stress) converged with the two mesh density parameters (Figure 3). Mises stress (σnomin1, σnomin2), and the distances from the beginning of the paths (lK1, lK2), where the stress drops almost to its nominal value (σ < 1.1σnomin).
    keywords: acta; analysis; angle; aortic; apex; arterial; atherosclerosis; bifurcation; calculated; carotid; cia; constant; daa; doi:10.1016; elastic; element; engineering; evaluated; factor; figure; finite; geometrical; geometries; geometry; hooke; hyper; increase; internal; journal; linear; material; maximum; measurements; mechanical; mesh; mises; mmhg; model; mpa; non; ogden; parameters; path; polytechnica; pressure; properties; regression; results; scf; shear; stress; stresses; study; taa; thickness; values; vascular; vol; wall
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        item: #650 of 1243
          id: ap-302
      author: Jokl, M. V.
       title: Thermal Comfort and Optimum Humidity Part 1
        date: 2002-01-01
       words: 7554
      flesch: 56
     summary: This limit enables another hygienic requirement for interiors to be estimated: the acceptable difference be- tween air temperature and surface, wall temperature, and the corresponding difference between air temperature and globe temperature in winter. Air temperature in an enclosed space generally increases from floor to ceiling.
    keywords: acceptable; acta; activity; air; air temperature; ashrae; asymmetry; body; broadcloth; building; center; change; clothing; cold; comfort; conditions; cooling; czech; difference; discomfort; draft; environment; fig; floor; globe; hard; head; heat; higher; house; http://ctn.cvut.cz/ap/; human; humidity; hydrothermal; indoor; insulation; jokl; length; level; light; limit; local; long; mites; new; operative; operative temperature; optimum; people; polytechnica; prague; publishing; radiant; radiation; relative; sedentary; shirt; shoes; sleeve; sources; space; speed; standard; summer; surface; table; technical; temperature; thermal; thick; university; values; vapor; ventilation; vertical; vol; water; windows; winter; work
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        item: #651 of 1243
          id: ap-3026
      author: Koleňák, Roman; Prach, Michal; Kostolný, Igor
       title: ULTRASONIC SOLDERING OF Cu AND Al2O3 CERAMICS BY USE OF Bi-La AND Bi-Ag-La SOLDERS
        date: 2016-04-30
       words: 4592
      flesch: 68
     summary: % lanthanum addition and Bi solder with 2 wt. 5 Microstructure of Bi2La solder with La phases and microstructure with twins Fig.
    keywords: al2o3; alloys; analysis; application; bi11ag2la; bi2la; bi2la solder; bismuth; boundary; ceramic; chemical; composition; concentration; conductivity; doi; dsc; fig; figure; formation; free; high; joint; journal; koleňák; lanthanum; lead; materials; matrix; melting; metallic; microstructure; new; phases; results; solder; soldering; substrate; table; temperature; type; ultrasonic; use; vol
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        item: #652 of 1243
          id: ap-3028
      author: Urminsky, Jan; Marônek, Milan; Jáňa, Miroslav; Morovič, Ladislav
       title: ANALYSIS OF WELD JOINT DEFORMATIONS BY OPTICAL 3D SCANNING
        date: 2016-02-29
       words: 2636
      flesch: 57
     summary: This paper presents an analysis of weld joint deformation using optical 3D scanning. Angular deformations are adverse from all group and can degrade the utility of the weld- ment.
    keywords: alloy; analysis; angular; atos; az31b; bimetal; bratislava; colour; deformation; deviation; explosion; explosive; figure; gom; https://support.gom.com; joints; materials; max; measurements; measuring; methods; optical; quality; scanned; scanning; steel; surface; table; trnava; volume; weld; welding
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        item: #653 of 1243
          id: ap-3032
      author: Prachař, Aleš
       title: COMPARISON OF AXIAL FAN ROTOR EXPERIMENTAL DATA WITH CFD SIMULATION
        date: 2016-02-29
       words: 2616
      flesch: 61
     summary: The measured quantities, obtained as functions of radial coordinate, were later utilized to calculate inte- gral values (volume flow rate, average total or static pressure). However, the exit static pressure is influenced by the performance of the rotor at various volume flow rates.
    keywords: acta; agreement; axial; blade; boundary; calculation; cfd; comparison; conditions; data; downstream; edge; experimental; fan; fans; fig; figure; flow; fluid; grid; inlet; measured; model; polytechnica; pressure; problems; radial; relative; research; results; rig; rotor; scheme; settings; simulation; solver; stall; static; structure; s−1; test; total; turbulence; upstream; vector; velocity; volume
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        item: #654 of 1243
          id: ap-3033
      author: Hromadka, David; Chlup, Hynek; Žitný, Rudolf
       title: INTEGRAL METHODS FOR DESCRIBING PULSATILE FLOW
        date: 2016-04-30
       words: 4785
      flesch: 68
     summary: Keywords: pulsatile flow, integral energy, integral momentum, rigid pipe. To the best of the author’s knowledge, there is no in- tegral energy solution for pulsatile flow that takes into account the reverse flow.
    keywords: acta; approximate; balance; basis; calculated; constant; deviation; difference; differential; energy; equations; error; exact; finite; flow; fluid; function; gradient; i=0; i=1; integral; journal; kinetic; laminar; mathematical; method; model; momentum; pressure; profile; pulsatile; rate; results; reverse; rigid; shear; solution; stress; s−1; time; total; tube; u(r; u2(t; velocity; wall; womersley; πr2
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        item: #655 of 1243
          id: ap-3037
      author: Kalde, Nassim; Simonin, Olivier; Charpillet, François
       title: COMPARISON OF CLASSICAL AND INTERACTIVE MULTI-ROBOT EXPLORATION STRATEGIES IN POPULATED ENVIRONMENTS
        date: 2015-06-30
       words: 4946
      flesch: 58
     summary: Multi-robot exploration consists in coordinating robots for mapping an unknown environment. Multi-robot exploration of unknown environments with identification of exploration completion and post-exploration rendez-vous using ant algorithms.
    keywords: acta; agent; approach; assignments; average; best; charpillet; classical; conference; cost; coverage; distance; environment; exploration; fig; figure; frontier; greedy; grid; group; heuristic; hri; human; ieee; intelligent; interaction; international; local; mixed; mobile; model; mre; multi; penalties; penalty; performance; polytechnica; populated; presence; present; proceedings; robot; robot exploration; robotics; set; space; study; system; targets; task; time; unknown; unstructured
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        item: #656 of 1243
          id: ap-3039
      author: Kulich, Miroslav; Juchelka, Tomáš; Přeučil, Libor
       title: COMPARISON OF EXPLORATION STRATEGIES FOR MULTI-ROBOT SEARCH
        date: 2015-06-30
       words: 4852
      flesch: 66
     summary: In addition, approaches based on K-means clustering and assigning the clusters to particular robots are presented in [16, 17] Intuitively, multi-robot search is a process of au- tonomous navigation of a team of mobile robots in an a-priori unknown environment in order to find an ob- 162 http://dx.doi.org/10.14311/AP.2015.55.0162 http://ojs.cvut.cz/ojs/index.php/ap vol. Framework The framework for multi-robot search is based on Yamauchi’s frontier-based approach [9], successfully used for exploration, which uses an occupancy grid as the environment representation.
    keywords: algorithm; approach; area; art; assignment; comparison; conf; cost; doi:10.1109; environment; experiments; exploration; figure; framework; frontier; function; goal; greedy; hospital; hungarian; ieee; int; left; map; means; method; multi; new; number; object; optimal; order; paper; path; planning; problem; process; region; results; right; robotics; robots; search; selection; single; step; strategies; strategy; task; time; unknown
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        item: #657 of 1243
          id: ap-304
      author: Ficker, T.; Podešvová, Z.
       title: Non-isothermal Diffusion of Water Vapour in Porous Building Materials
        date: 2002-01-01
       words: 1727
      flesch: 60
     summary: For this purpose the coefficient of diffusion permeability � is defined as follows � �� T g d p p * � � d 1 2 (1), T T T * � �1 2 2 (2) where d is the thickness of the envelope (wall), gd is diffusion flux and p1, p2 are partial pressures of water vapour at both surfaces of the wall. 2 Non-isothermal diffusion of water vapours If there are no sources of diffusing particles and unidirect- ional steady state diffusion through a porous medium with diffusion constant D has been established, then Fick’s general equations can be rewritten in the simpler form q D c x d d d � � , (3) d d d dx D c x � � � � 0, (4) where concentration c of diffusing particles, i.e. molecules of water vapour, can be replaced by partial pressure p and absolute temperature T, according to the equation of thermo- dynamic state pV mRT c m V c R p T R� � � � � �, , , [ ] 1 462 1 1Jkg K .
    keywords: conditions; diffusion; isothermal; non; p t; partial; porous; pressure; profile; t t; temperature; vapour; wall; water
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        item: #658 of 1243
          id: ap-3040
      author: Matignon, Laetitia; Jeanpierre, Laurent; Mouaddib, Abdel-Illah
       title: DECENTRALIZED MULTI-ROBOT PLANNING TO EXPLORE AND PERCEIVE
        date: 2015-06-30
       words: 6176
      flesch: 61
     summary: Then we present our Dec- MDP resolution, based on DVF, and its application to multi-robot exploration. 176 http://dx.doi.org/10.1109/TRO.2004.839232 http://dx.doi.org/10.1109/IROS.2008.4650734 http://dx.doi.org/10.1109/ROBOT.2002.1013690 http://dx.doi.org/10.1007/s10514-012-9298-8 http://dx.doi.org/10.1109/IRDS.2002.1041445 http://dx.doi.org/10.1016/j.artint.2011.05.001 http://dx.doi.org/10.1109/ICRA.2012.6224937 Acta Polytechnica 55(3):169–176, 2015 1 Introduction 2 Context 2.1 The CaRotte Challenge 2.2 The Robots_Malins System 3 State of the art 3.1 Multi-robot exploration 3.2 Active perception combined with exploration 4 Interaction-oriented Models 4.1 Background on Dec-MDP 4.2 Interaction-oriented Models 5 DVF for multi-robot exploration 5.1 Interaction Sparse Dec-MDP with DVF 5.2 DVF applied to multi-robot exploration 5.2.1 MDP Model 5.2.2 DVF 5.2.3 Decision step 5.2.4 Experiments 6 Planning to explore and perceive 6.1 DVF extension to improve photo coverage of the space
    keywords: a.-i; acta; active; agent; algorithm; areas; arena; augmented; autonomous; camera; challenge; complexity; coordination; coverage; decentralized; decision; detection; different; distributed; dvf; environment; experiments; exploration; frontier; function; global; information; interaction; jeanpierre; joint; layer; local; location; map; mapping; mdp; mdps; mission; models; module; mouaddib; multi; new; object; perception; photos; pictures; planning; policy; present; proc; real; recognition; resolution; reward; robot; robot exploration; set; space; state; step; system; taking; time; unknown; value
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        item: #659 of 1243
          id: ap-3047
      author: Kühnel, Matthias; Falkner, Sebastian; Grossberger, Christoph; Ballhausen, Ralf; Dauser, Thomas; Schwarm, Fritz-Walter; Kreykenbohm, Ingo; Nowak, Michael A.; Pottschmidt, Katja; Ferrigno, Carlo; Rothschild, Richard E.; Martínez-Núñez, Silvia; Torrejón, José Miguel; Fürst, Felix; Klochkov, Dmitry; Staubert, Rüdiger; Kretschmar, Peter; Wilms, Jörn
       title: THE GOODNESS OF SIMULTANEOUS FITS IN ISIS
        date: 2016-02-29
       words: 4403
      flesch: 66
     summary: After a model with p parameters has been defined each of these data-groups is fitted by an individual set of parameters, called group parameters. A model with p + P parameters is fitted such that each data-group has its own set of pi parameters, called group parameters.
    keywords: account; acta; analysis; case; combined; continuum; data; datasets; degrees; energy; example; failed; features; fig; fit; fits; freedom; functions; global; goodness; group; histogram; individual; iron; isis; j1008−57; kev; kühnel; line; model; number; parameters; ray; residuals; simultaneous; simultaneous fit; spectra; spectrum; statistics; value; vela; x-1; xte; χ2red
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        item: #660 of 1243
          id: ap-306
      author: Jokl, M. V.
       title: Thermal Comfort and Optimum Humidity Part 2
        date: 2002-01-01
       words: 3818
      flesch: 58
     summary: For warm air heating, the above pattern of air streams within a room is the best way to prevent the formation of a cold draft. The basic principle for warm air heating is that warm air must be released from above and must then go down, i.e., it must be supplied to the ceiling of a room.
    keywords: air; body; building; ceiling; changes; cold; comfort; conditioning; control; cooling; czech; draft; environment; fig; heating; human; humidity; hydrothermal; individual; indoor; interior; jokl; location; louvres; new; optimum; prague; principle; room; source; summer; system; technical; temperature; university; vapor; ventilation; warm; water; way; window; winter
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        item: #661 of 1243
          id: ap-3064
      author: Sirůčková, Hana
       title: EXPERIMENTAL LEVELLING AT THE INTERFACE OF OPTICAL ENVIRONMENTS
        date: 2016-04-30
       words: 4732
      flesch: 62
     summary: Temperature measurement The temperatures were measured with the digital ther- mometer BTM-42083D equipped with 12 temperature sensors. Temperature sensors were positioned, the levelling set was measured between the exterior point and a point in the centre of the atrium.
    keywords: 007; building; calculated; december; difference; dna; effect; entrance; environments; experiment; february; figure; ground; height; horizontal; humidity; influence; instrument; interface; koni; levelling; library; line; measured; measurement; measuring; november; optical; outside; point; prague; pressure; range; refraction; sensors; sight; temperature; temperature sensors; values; vertical; weather
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        item: #662 of 1243
          id: ap-308
      author: Pokorná, O.; Mocková, D.
       title: The Risks of Investments in Transport Infrastructure Projects
        date: 2002-01-01
       words: 2880
      flesch: 49
     summary: The main risks facing infrastructure projects are pre-con- struction activity, construction, traffic and revenue, currency, force majeure, tort liability, political risk and financial risk. Financial risks: interest rates Financial risk is the risk that project cash flows may be insufficient to cover debt servicing and then to pay an adequate return on sponsor equity.
    keywords: analysis; best; capital; changes; construction; contracts; costs; currency; czech; debt; decision; delays; evaluation; finance; financial; financing; force; form; government; guarantees; identification; infrastructure; interest; investment; investors; land; legal; majeure; major; phase; political; pre; private; project; public; regulatory; responsibility; revenue; risks; sector; technical; toll; traffic; transport; university
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        item: #663 of 1243
          id: ap-3088
      author: Horník, Jakub; Krum, Stanislav; Tondl, David; Puchnin, Maxim; Sachr, Pavel; Cvrček, Ladislav
       title: MULTILAYER COATINGS Ti/TiN, Cr/CrN AND W/WN DEPOSITED BY MAGNETRON SPUTTERING FOR IMPROVEMENT OF ADHESION TO BASE MATERIALS
        date: 2015-12-31
       words: 1969
      flesch: 56
     summary: Highest adhesion was achieved in case of W/WN and Cr/CrN. The combi- nation of highest hardness, modulus of elasticity and best adhesion promotes W based coatings, especially the FGM type, to be very perspective for tribological application. cupola character, in case of W based coating prevails the cauliflower appearance.
    keywords: acta; adhesion; case; coatings; composition; crn; deposition; elasticity; fgm; hardness; layers; load; materials; max; mechanical; modulus; multilayer; properties; pvd; results; scratch; steel; structure; substrate; surface; systems; test; values; wt%
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        item: #664 of 1243
          id: ap-310
      author: Rieger, F.
       title: Pumping Efficiency of Screw Agitators in a Tube
        date: 2002-01-01
       words: 1400
      flesch: 62
     summary: In the turbulent region, the values of a and c / Re are independent of Re, and the power characteristic can be approximated by the following equation Po c ae� � �Re . The effect of Reynolds number on pumping characteristics was shown in [1].
    keywords: characteristics; dependence; dimensionless; efficiency; fig; max; number; power; pumping; region; reynolds; screw; values
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        item: #665 of 1243
          id: ap-3105
      author: Košťáková, Petra; Stovicek, Pavel
       title: THE AHARONOV-BOHM HAMILTONIAN WITH TWO VORTICES REVISITED
        date: 2016-06-30
       words: 7247
      flesch: 79
     summary: For x,y ∈ M̃ ∪A∪B set χ(x,y) = 1 if the points x, y can be connected by a geodesic segment, and χ(x,y) = 0 otherwise. Verification of the propagator formula We have to show that, for x0 ∈ M̃ fixed, the propagator K(t,x,x0) defined in (9), (10) verifies the condition( i ∂ ∂t + ∆ ) K(t,x,x0)
    keywords: acta; aharonov; analysis; bloch; bohm; boundary; case; covering; c∞0; denote; differential; discrete; domain; equivariant; exp; extension; finite; formula; free; function; fundamental; geodesic; group; half; hamiltonian; hilbert; k(t; kγ(t; magnetic; manifold; math; operator; path; periodic; phys; plane; points; polytechnica; propagator; set; space; terms; tn−1; type; unitary; universal; values; vortices; z(t; šťovíček; χ(x; ∂−→n
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        item: #666 of 1243
          id: ap-312
      author: Kavan, M.
       title: Education for Production and Operations Management
        date: 2002-01-01
       words: 3486
      flesch: 44
     summary: Keywords: production and operations management, study programme, department of mechanical engineering enterprise management, Czech business and industry,Czech Technical University in Prague, education, lean operations management, Toyota production system. This programme brings together theory and prac- tice in a broad overview of operations management (OM), dealing with the production process, interactions with other business functions, and also business strategy.
    keywords: activities; business; concepts; control; course; czech; department; design; education; effective; engineering; enterprise; faculty; field; house; industry; inventory; knowledge; lean; learning; management; manufacturing; new; operations; operations management; organizations; planning; practices; prague; principles; problem; process; production; products; programme; quality; research; services; strategy; students; study; systems; teaching; teams; technical; time; today; tools; training; university; work; world
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        item: #667 of 1243
          id: ap-314
      author: Coiro, D. P.; Nicolosi, F.
       title: Design of a Three Surfaces R/C Aircraft Model
        date: 2002-01-01
       words: 5620
      flesch: 60
     summary: It can be observed that canard stalls around � � 16° and this reflects on global lift and especially the global moment coefficient curve. It can be observed that the global (TOT) moment curve strongly “feels” the canard stall at � � 16° and a high negative pitching tendency results.
    keywords: acta; aerodynamic; aircraft; airfoil; analysis; angles; canard; characteristics; chord; code; conditions; configuration; czech; design; dimensions; drag; efficiency; engine; fig; flap; flight; fuselage; good; high; higher; house; http://ctn.cvut.cz/ap/; lift; low; main; maximum; measured; model; moment; polytechnica; position; power; propeller; publishing; results; span; speed; stability; stall; surface; table; tail; technical; tunnel; university; vol; weight; wind; wing
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        item: #668 of 1243
          id: ap-3143
      author: Plankovskyy, Sergiy; Shypul, Olga; Tsegelnyk, Yevgen; Tryfonov, Oleg; Golovin, Ivan
       title: SIMULATION OF SURFACE HEATING FOR ARBITRARY SHAPE’S MOVING BODIES/SOURCES BY USING R-FUNCTIONS
        date: 2016-12-31
       words: 3693
      flesch: 61
     summary: Keywords: numerical methods; moving heat sources; ray tracing; R-functions method. The problem of heating bodies of finite dimensions by moving heat sources is considered in fewer studies.
    keywords: action; analytical; arbitrary; axis; beam; blade; bodies; body; boolean; case; complex; determination; energy; equal; expression; figure; flux; functions; geometric; geometry; heat; heat source; heated; heating; journal; jrad; laser; law; mesh; method; motion; numerical; plasma; points; primitives; problem; ray; shape; simulation; sin; source; sputtering; substrate; surface; system; temperature; time; tracing; use; value; ϕ̇1
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        item: #669 of 1243
          id: ap-316
      author: Barták, J.; Hilar, M.; Pruška, J.
       title: Numerical Modelling of Overburden Deformations
        date: 2002-01-01
       words: 4527
      flesch: 54
     summary: � After comparing of in situ measured deformation values with calculated deformations on the basic model, the ef- fect of parametric changes on the final deformations was investigated. Horizontal deforma- tions up to 1.6 mm and vertical deformations up to 1.3 mm occurred in the area of the diaphragm wall when the jet-grout curtain was set.
    keywords: analysis; area; behaviour; construction; cross; curtain; czech; deformations; excavation; exploratory; face; fig; foundation; grouting; heading; horizontal; hvížd’alka; influence; jet; length; lining; mass; massif; maximum; means; measured; mesh; model; modelling; monastery; mrázovka; numerical; plaxis; profile; reduction; results; rock; section; sequencing; settlement; situ; stress; structure; surface; technical; tunnel; type; underground; utility; values; vertical; wall
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        item: #670 of 1243
          id: ap-318
      author: Rao, N.; Kusumo, R.; Sinha, A. K.; Scott, M. L.
       title: System Framework for the Design of an Avionics Architecture with Upgrade Potential
        date: 2002-01-01
       words: 1997
      flesch: 39
     summary: The complexity of avionics upgrade process is due to the design rigidity of avionics systems architecture. Keywords: avionics systems, avionics upgrade, system approach, avionics architecture.
    keywords: advanced; aircraft; analysis; approach; architecture; art; asa; avionics; components; design; framework; functional; growth; insertion; life; methodology; mid; military; mission; modules; needs; new; parameters; potential; process; requirements; scott; service; sinha; state; structure; system; technological; technology; upgrade
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        item: #671 of 1243
          id: ap-320
      author: Cooper, G.; Thompson, G.
       title: Concept Design and Reliability
        date: 2002-01-02
       words: 6543
      flesch: 55
     summary: It is an integrated product design process that is presently being pursued as a collabora- tive activity between the Polhem Laboratory, Lule Technical University, Sweden and UMIST, UK in collaboration with major manufacturing industries in Sweden. Derivation of the specification and concept design is an integrated activity. Thus concept design becomes a set of divergent-convergent design activities that develop an immature concept to maturity by strengthening the concept in response to the salient design requirements.
    keywords: acta; analysis; available; concept; conceptual; conceptual design; czech; data; design; designer; detail; development; early; engineering; envelope; excursion; failure; fault; fig; fluid; fta; functional; graph; hazard; house; http://ctn.cvut.cz/ap/; improvement; increase; information; isbn; iterative; limiting; load; margin; mean; methodology; methods; multi; need; new; number; objective; order; performance; polytechnica; problem; process; product; publishing; rate; reliability; reliable; requirements; results; robust; safety; solid; solutions; space; specification; stage; standard; system; table; technical; techniques; toolbox; tools; university; use; vol
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        item: #672 of 1243
          id: ap-322
      author: Jokl, M. V.
       title: The Impact of Odors
        date: 2002-01-02
       words: 4872
      flesch: 60
     summary: Indoors, flowers and man-made aromas (cosmetics and detergents, smoke from an open fireplace) are sources of pleasant smells. Odoriferous substances have to come into con- tact with a mucous membrane, if smell perception is to be evoked.
    keywords: 1989r; acta; adapted; admissible; age; air; ashrae; asthm; bad; building; co2; concentration; czech; dcd; dissatisfied; eur; feelings; fig; house; http://ctn.cvut.cz/ap/; human; impact; indoor; interior; jokl; level; limit; long; materials; microclimate; new; odor; optimal; organic; people; perception; person; pleasant; pollution; polytechnica; publishing; quality; range; sense; short; smell; smoke; smoking; sources; standard; subjects; table; technical; term; time; tolerable; tvoc; unadapted; units; university; values; ventilation; vol
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        item: #673 of 1243
          id: ap-324
      author: Jokl, M. V.
       title: Optimization of the Odor Microclimate
        date: 2002-01-02
       words: 3055
      flesch: 64
     summary: The following equation should be used in the rooms where odor agents, released from building materials, are deci- sive for outdoor air rate: � � R G B B iTVOC e TVOC � �3 6. � � [l/s�m2] (1) where RB � minimum outdoor air rate related to 1 m 2 of floor [l/s�m2], GB � TVOC rate produced within an interior [�g/h�m2 floor] (see Table 1), �eTVOC � TVOC concentration in outdoor air Emission rates declined slowly Table 1: TVOC Emission rates in a building interior sults must be proved by calculations of air rates related to one person.
    keywords: acta; agents; air; building; carbon; change; chemical; cleaning; co2; concentration; converted; crump; czech; eur; fig; high; house; http://ctn.cvut.cz/ap/; human; indoor; jokl; lily; materials; microclimate; odor; olf; outdoor; ozone; person; plants; polytechnica; publishing; quality; rate; removal; room; source; table; technical; tvoc; university; value; ventilation; vol; waste
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        item: #674 of 1243
          id: ap-326
      author: Usama, S.; Šimák, B.
       title: A Low-complexity Wavelet Based Algorithm for Inter-frame Image Prediction
        date: 2002-01-02
       words: 2851
      flesch: 61
     summary: The results show that MRVBS is usually better than the FS and TSS algorithms, especially with slow motion video sequences. One family of fast block motion estimation algorithms relies on the idea of predicting the approximate large-scale motion vectors in the coarse-resolution video and refining the prediction motion vectors to find the final values.
    keywords: algorithm; america; better; block; central; comparison; dbs; estimation; fig; frame; gaussian; image; influence; layer; miss; mixed; motion; mrvbs; multi; new; noise; performance; process; psnr; resolution; results; search; sequence; simulation; size; tss; video; vol; wavelet
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        item: #675 of 1243
          id: ap-3260
      author: Opatřil, Jan; Havlík, Jan; Bartoš, Ondřej; Dlouhý, Tomáš
       title: AN EXPERIMENTAL ASSESSMENT OF THE PLATE HEAT EXCHANGER CHARACTERISTICS BY WILSON PLOT METHOD
        date: 2016-10-31
       words: 4466
      flesch: 64
     summary: Keywords: plate heat exchanger; Wilson plot; experimental measurement; heat transfer; pressure drop; friction factor. (2) In single phase fluid flow heat transfer, generally, Nu is represented by a pragmatic expression such as the one given in (3).
    keywords: boiler; chevron; coefficient; cold; convection; data; dependence; different; dimpel; evaluation; exchanger; experimental; figure; flow; fluid; heat; heat exchanger; heat transfer; hot; international; jan; linear; loop; measured; measurement; method; number; ohtc; parameters; performance; phe; plate; plate heat; plot; plot method; pressure; rate; regression; table; temperature; thermal; transfer; tubular; values; water; wilson
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        item: #676 of 1243
          id: ap-3265
      author: Kalnins, Ernest G.; Miller, Jr, Willard; Subag, Eyal
       title: LAPLACE EQUATIONS, CONFORMAL SUPERINTEGRABILITY AND BÔCHER CONTRACTIONS
        date: 2016-06-30
       words: 7490
      flesch: 64
     summary: There is a similar definition of ordinary Stäckel transforms of Helmholtz superintegrable systems HΨ = EΨ which takes superintegrable systems to superintegrable systems, essentially preserving the quadratic algebra structure • All the 2nd order superintegrable systems are limit- ing cases of a single system: the generic 3-parameter potential on the 2-sphere, S9 in our listing [13], or are obtained from these limits by a Stäckel trans- form (an invertible structure preserving mapping of superintegrable systems
    keywords: 2nd; algebra; basis; bôcher; classical; classification; complex; conformal; constant; contractions; coordinates; curvature; dimensional; equations; flat; free; functions; hamiltonian; helmholtz; ix4)2; kalnins; koenigs; laplace; lie; limits; math; miller; nondegenerate; order; parameter; phys; post; potential; quadratic; quantum; second; separable; so(4,c; space; sphere; structure; stäckel; superintegrability; superintegrable; superintegrable systems; symmetries; symmetry; systems; theorem; transform; v[1,1,1,1; v[2,1,1; v[2,2; v[3,1; v[4; x22
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        item: #677 of 1243
          id: ap-3266
      author: Pospíšil, Jiří; Lisý, Martin; Špiláček, Michal
       title: OPTIMALIZATION OF AFTERBURNER CHANNEL IN BIOMASS BOILER USING CFD ANALYSIS
        date: 2016-10-31
       words: 3830
      flesch: 53
     summary: The values of kinetic energy of turbulence obtained from the carried out parametrical study are presented in Figure 6. Kinetic energy of turbulence generally increases with increasing velocity of flue gas flow. Left of each subfigure: highest concentrations – section plan view; right: concentration in the cut – view in the direction of flue gas flow.
    keywords: air; biomass; boiler; chamber; channel; combustion; concentration; conditions; cross; cross section; cut; diameter; distribution; duct; energy; figure; flow; flue gas; free; fuel; gas; gas duct; gas flow; increase; kinetic; local; maximum; minimum; mixing; option; orifice; parametrical; pipe; pressure; reduction; secondary; secondary air; section; study; temperature; trace gas; turbulence; velocity
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        item: #678 of 1243
          id: ap-328
      author: Haghi, A. K.
       title: A Mathematical Approach for Evaluation of Surface Topography Parameters
        date: 2002-01-02
       words: 3104
      flesch: 66
     summary: The correlation function (5) can be represented as [3]: � � � � � � � �� � K x x y y C x y C x y n G n n n 1 2 1 2 1 1 1 1 1 2 1 2 1 , , , , , , ! � � � � �� � � � � � (6) � � � � � � � � C x y G h The following notation is now used: � � � �S K KK GG G d d� �� �� 1 0 0 1 2 1 2 00 , ,� � � � (14) with L L SK1 2!
    keywords: component; deterministic; equation; mathematical; parameter �; random; s x; surface; transformation; x y; y s; y y; y �; � exp; � g; � k; � ras; � s; � �
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        item: #679 of 1243
          id: ap-330
      author: Tesař, V.
       title: Sampling by Fluidics and Microfluidics
        date: 2002-01-02
       words: 6098
      flesch: 61
     summary: A similar tree- -like connection principle at higher levels is applied to build sampling units for a larger number of sample flows. This would, of course, also apply if there were more valve pairs in a sampling unit handling a larger number of sample flows.
    keywords: acta; analyser; attachment; case; channels; chemical; circuit; cleaning; closed; collector; control; control flow; czech; diagram; difference; driving; effect; elements; example; fig; flow; fluidic; guard; high; house; http://ctn.cvut.cz/ap/; interaction; jet; junction; large; main; microfluidic; nozzle; number; open; operating; opposite; output; polytechnica; pressure; publishing; pump; pumping; pyv; reactors; required; reverse; reynolds; sample; sample flow; sampling; schematic; single; small; state; supply; technical; terminals; tesař; time; unit; university; valve; vent; vol
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        item: #680 of 1243
          id: ap-332
      author: Rieger, F.; Rzyski, E.
       title: Mixing Suspensions in Slender Tanks
        date: 2002-01-02
       words: 3183
      flesch: 63
     summary: 2 Experimental Experiments were carried out in a cylindrical flat-bot- tomed (glass) tank of diameter D � 0.2 m, filled with a liquid to a height of H � D or H � 2D. In the tank there were four standard baffles and a pitched four-blade impeller (� � 45°). 54 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 42 No. 2/2002 500 750 1000 1250 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 three impellers one impeller two impellers l 0.5·� d l 0.5·� d l 0.5·� d l 0.5·� d l � d l � d l � d l 1.5·� d l 1.5·� d four impellers five impellers � n [min ] �1 Fig. 13: Relative standard deviation of suspension concentration (particles � � 1.34 mm) in the tank H � 2 D 0 0.05 0.10 0.15 1 10 one impeller two impellers, l = 1.5·d three impellers, l = 1.5·d four impellers, l = ·d five impellers, l = 0.5·d � �s Fig.
    keywords: concentration; deviation; different; distance; distribution; fig; frequency; height; homogeneity; impellers; liquid; min; mixing; number; particles; power; relative; rotation; solid; standard; suspension; tank
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        item: #681 of 1243
          id: ap-334
      author: Grünwald, A.; Šťastný, B.; Slavíčková, K.; Slavíček, M.
       title: Formation of Haloforms during Chlorination of Natural Waters
        date: 2002-01-02
       words: 2208
      flesch: 62
     summary: Among all the different parameters for characterizing NOM of given water, UV254 and specific ultraviolet absorbance (SUVA� � UV�/DOC) at a particular wavelength (�) has often correlated well with DBP formation [7]. This paper deals with the formation potencial of disinfection by-products in water samples taken from different places in the Flaje catchment.
    keywords: acid; chlorine; concentration; czech; dbps; disinfection; doc; fig; flaje; formation; haafp; haas; humic; matter; natural; nom; organic; parameters; potential; potok; products; radní; samples; sampling; stream; tab; thmfp; thms; university; vol; water
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        item: #682 of 1243
          id: ap-336
      author: Kreidl, M.; Houfek, P.
       title: Reducing Ultrasonic Signal Noise by Algorithms based on Wavelet Thresholding
        date: 2002-01-02
       words: 3104
      flesch: 60
     summary: The coefficient of noise reduction �SN was defined for a comparison of the success of the used algorithms, according to Eq. 60 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 42 No. 2/2002 Reducing Ultrasonic Signal Noise by Algorithms based on Wavelet Thresholding M. Kreidl, P. Houfek Traditional techniques for reducing ultrasonic signal noise are based on the optimum frequency of an acoustic wave, ultrasonic probe construction and low-noise electronic circuits.
    keywords: -10; algorithm; analysis; bior; coefficient; czech; decomposition; detail; different; echo; fig; level; maximum; methods; noise; noise reduction; nsr; optimum; reduction; results; signal; simulated; technical; threshold; thresholding; ultrasonic; university; value; vol; wavelet; waves
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        item: #683 of 1243
          id: ap-338
      author: Beran, V.
       title: Optimisation and Just-in-Time
        date: 2002-01-02
       words: 3361
      flesch: 61
     summary: Finishing processes in construction production are an appropriate place for practic- ing JIT methods. It is very probable that wherever construction work has been carried out at a loss or at a low profit, bad time and volume scheduling will have played a significant role in the bad economic results.
    keywords: acta; activities; capacity; conditions; construction; contract; costs; czech; deadlines; demand; execution; fig; fixed; house; http://ctn.cvut.cz/ap/; industry; jit; latest; low; management; minimum; optimisation; payments; polytechnica; possible; problem; production; project; publishing; risk; section; segment; solution; speed; technical; technological; time; total; university; vol; work
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        item: #684 of 1243
          id: ap-340
      author: Bednařík, M.; Koníček, P.; Červenka, M.
       title: Solution of the Burgers Equation in the Time Domain
        date: 2002-01-02
       words: 3678
      flesch: 69
     summary: (8) The integration itself can be performed by means of the Simpson method, which is based on approximating the inte- grated function in the segments by parts of a parabola � � � � � � � �f z z q q n f z f z f z q q d 1 2 2 1 0 1 2 3 4 2 � � � � � �� [ � � � � � � �� � �� �2 42 1f z f z f zn n n ], (9) where n � 2k, k N� is the number of equidistant intervals and � �z q i q q ni � � �1 2 1 . Homogeneous Burgers equation � � � � � � � � � � v x c v v b c v � � � 0 2 0 0 3 2 22 0, (1) here v is acoustic velocity, � is retarded time, � � �t x c0, where t is time, x is the distance from the sound source, c0 is the velocity of sound propagation in the linear approxima- tion, b is the dissipation coefficient, �0 is density of medium, � is nonlinearity coefficient.
    keywords: amplitude; burgers; burgers equation; case; domain; equation; f z; finite; function; integrand; method; nonlinear; number; plane; point; s y; s �; solution; sound; time; transformation; v y; vol; waves; y y; y z; y �; z s; � exp; � �
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        item: #685 of 1243
          id: ap-3408
      author: Mouralova, Katerina; Kovar, Jiri; Houska, Pavel
       title: EXPERIMENTAL EVALUATION OF WEDM MACHINED SURFACE WAVINESS
        date: 2016-10-31
       words: 3462
      flesch: 61
     summary: 4. Conclusions and discussion The morphology of sample surfaces is made up of a large number of craters which were formed by ero- sion process [15,16]. ZHR 4150AK hardness tester, series Rockwell by Zwick Roell was used for the measurement of hardness of sample material.
    keywords: 99.5; acta; advanced; alloy; average; current; discharge; doi:10.1007; electrical; evaluation; experimental; fig; figure; heat; high; individual; journal; machined; machining; manufacturing; material; maximum; measured; measurement; number; optimization; parameters; points; polytechnica; process; profile; results; samples; surface; technology; ti-6al-4v; titanium; treatment; values; waviness; wedm; wire
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        item: #686 of 1243
          id: ap-3411
      author: Gubbiotti, Giorgio; Levi, Decio; Scimiterna, Christian
       title: ON PARTIAL DIFFERENTIAL AND DIFFERENCE EQUATIONS WITH SYMMETRIES DEPENDING ON ARBITRARY FUNCTIONS
        date: 2016-06-30
       words: 5496
      flesch: 61
     summary: Startsev, Darboux integrable discrete equations possessing an autonomous first-order integral, J. Phys. In the following Section we will present some results on the construction of PDE’s presenting generalized symmetries depending on arbitrary functions and relate them to Darboux integrable equations.
    keywords: arbitrary; arbitrary functions; autonomous; case; characteristic; classification; darboux; difference; differential; direction; discrete; doi:10.1007; equation; factorizable; following; functions; generalized; generalized symmetries; generator; group; gubbiotti; infinitesimal; integrable; levi; lie; linearizable; liouville; math; n+1; nonlinear; operators; order; partial; pde; phys; point; present; p∆e; results; role; scimiterna; second; symmetries; symmetry; systems; theor; tm−1,n; v0,0; variables; winternitz
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        item: #687 of 1243
          id: ap-342
      author: Jahoda, M.; Machoň, V.; Vlach, L.; Fořt, I.
       title: Macro-instabilities of a Suspension in an Axially Agitated Mixing Tank
        date: 2002-01-03
       words: 3470
      flesch: 62
     summary: The dependence of the mean value of the dimensionless frequency of macro-instability occurrence on impeller speed for constant solid concentration 10 % by weight is shown in Fig. The dependence of the mean value of the dimensionless frequency of macro-instability occurrence on solid concentration for constant impeller speed is shown in Fig.
    keywords: axial; baffle; circulation; clearance; concentration; czech; diameter; dimensionless; edge; field; fig; flow; fořt; frequency; impeller; instabilities; loop; macro; mean; mixing; occurrence; origin; particles; region; solid; speed; stirred; stream; surface; suspension; value; velocity; vessel; vol; vortex; vortices
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        item: #688 of 1243
          id: ap-3436
      author: Vaněček, Jan; Štroner, Martin
       title: TESTING THE ACCURACY OF MEASURED VALUES IN CONTINUOUS LONG-TERM GEODETIC MONITORING
        date: 2016-12-31
       words: 6378
      flesch: 59
     summary: Important coefficients of approximation curves of horizontal direction standard deviations. Standard deviation of horizontal direction for all tested reference points.
    keywords: accuracy; acta; air; analysis; angle; approximation; approximation curve; automatic; average standard; calculated; calculated standard; calculation; case; changes; coefficient; comparison; curve; daily standard; days; deviations; difference; distance; fig; figure; function; geodetic; horizontal; horizontal direction; important; intervals; limit; linear; manufacturer; measured; measurements; mgon; monitoring; period; point; reference; reference point; results; size; slope; slope distance; standard deviation; station; system; table; temperature; testing; time; total; trend; values; zenith; zenith angle
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        item: #689 of 1243
          id: ap-3438
      author: Prorok, Amanda; Ani Hsieh, M.; Kumar, Vijay
       title: ADAPTIVE DISTRIBUTION OF A SWARM OF HETEROGENEOUS ROBOTS
        date: 2016-02-29
       words: 6524
      flesch: 64
     summary: As a consequence, we do not employ optimization methods that utilize final robot distributions in their formula- tions (which is the case in the works presented by [8] and [13]). Notation We consider a community of S robot species, with a total number of robots N, and N(s) robots per species such that ∑S s=1 N (s) =
    keywords: adaptive; capabilities; case; configuration; continuous; control; convergence; cost; derivative; distribution; fig; final; function; gradient; graph; heterogeneous; hsieh; initial; k(s; k(s)f; k(s)ij; kumar; large; matrix; max; method; microscopic; model; multiple; nodes; number; objective; optimal; optimization; present; problem; q(s; random; rank(q; rates; real; respect; results; robot; robot distribution; robotics; s)τ; set; sites; species; state; steady; swarm; system; tasks; time; trait; trait distribution; transition; values; v−1; work; ∂ek
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        item: #690 of 1243
          id: ap-344
      author: Teplý, B.
       title: Modelling of Deterioration Effects on Concrete Structures
        date: 2002-01-03
       words: 3973
      flesch: 59
     summary: Then the following inequality should be satisfied: � � � �Z R S R X X X S Y Y Yn m� � � � �1 2 1 2, , , , , ,� � 0 2: Two periods of structural service life If [Cl � (aq)]cr indicates the diffusion coefficient of Cl � in the aqueous phase (mol/m3) required for the depassivation of steel bars (a critical value), and cc is the concrete cover (mm), then time tcr (years) to depassivation is given by: � �� � � � � �� � t c D cr c e � � � � � � � Cl solid Cl aq Cl sat Cl 1000 31536 10 2 1 2 7 0 .
    keywords: acta; analysis; basic; carbonation; chloride; cl �; co2; concentration; concrete; corrosion; czech; depth; deterioration; effects; environmental; failure; fig; function; life; limit; model; performance; pitting; polytechnica; prediction; probabilistic; probability; process; random; reinforcement; safety; sensitivity; service; statistical; steel; structures; technical; time; university; value; variables; vol
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        item: #691 of 1243
          id: ap-3440
      author: Mendes Filho, José M.; Lucet, Eric
       title: MULTI-ROBOT MOTION PLANNING: A MODIFIED RECEDING HORIZON APPROACH FOR REACHING GOAL STATES
        date: 2016-02-29
       words: 5644
      flesch: 57
     summary: The planned initial configuration and initial input for robot Rb must be equal to the initial configuration and initial input of Rb: q∗b (tinit) = qb,init, (2) u∗b (tinit) = ub,init. The planned final configuration and the final input for robot Rb must be equal to the goal configuration and the goal input for Rb: q∗b (tfinal) = qb,goal, (4) u∗b (tfinal) = ub,goal.
    keywords: account; algorithm; approach; collision; communication; computation; configuration; constraints; cost; d(rb; detection; distance; environment; figure; flat; following; function; goal; horizon; impact; initial; input; mct; method; mobile; motion; motion planning; multi; need; new; number; obstacle; optimization; order; output; parameters; penetration; planning; problem; q∗b; radius; robot; set; solution; states; step; system; team; termination; time; trajectories; trajectory; travel; values
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        item: #692 of 1243
          id: ap-3441
      author: Genter, Katie; Stone, Peter
       title: AD HOC TEAMWORK BEHAVIORS FOR INFLUENCING A FLOCK
        date: 2016-02-29
       words: 6675
      flesch: 53
     summary: Hence, as can be seen in Figure 4, flocks with higher percentages of influencing agents will, on average, converge to θ∗ in a smaller number of time steps than flocks with lower percentages of influencing agents. Additionally, even when a pair of influencing agents shared one or more neighbors, these influencing agents often behaved similarly, and hence did not exert significantly different types of influence.
    keywords: agent; agent orientation; algorithm; behavior; bestdiff; bestorient; better; converge; coordinated; diff; direction; experimental; figure; flock; flocking; heading; iaorient; influence; line; lookahead; lookahead behavior; neighborhood; neighbors; norient; numagents; numangles; number; orientation; paper; partner; possible; results; section; set; size; step; step lookahead; teamwork; time; time step; vector; velocity; work
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        item: #693 of 1243
          id: ap-3453
      author: Kawohl, Anne Katherine; Lange, Jörg
       title: TESTS ON 10.9 BOLTS UNDER COMBINED TENSION AND SHEAR
        date: 2016-04-30
       words: 3836
      flesch: 69
     summary: The above-mentioned reduction factors for bolt strength at elevated temperatures are based on an extensive series of tests by Kirby [4] on bolts of property class 8.8. [10], where tension tests on bolts were performed by applying compression to the test rig, with the use of different angles as in the test rigs used by Renner
    keywords: angle; bearing; behaviour; bolts; class; combination; combined; connection; elevated; factors; failure; figure; fire; gonzález; high; load; performance; post; property; pure; reduction; results; rig; rigs; shear; steel; strength; temperature; tensile; tension; tested; tests
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        item: #694 of 1243
          id: ap-3454
      author: Lišková, Anna; Lacková, Petra; Mihaliková, Mária; Kočiško, Róbert
       title: IMPACT OF PLASTIC DEFORMATION ON THE PROPERTIES OF A SELECTED ALUMINIUM ALLOY
        date: 2016-10-31
       words: 3788
      flesch: 57
     summary: This paper reports on an experiment to assess the influence of plastic deformation on the microstructure and properties of EN AW 6012 (AlMgSiPb) aluminium alloy in two states. Keywords: intensive plastic deformation; aluminium alloy; tensile test.
    keywords: acta; ageing; alloy; aluminium; aluminium alloy; angular; channel; cutting; deformation; doi:10.1016; ecap; engineering; equal; figure; fracture; free; hardness; heat; initial; intensive; lead; materials; mechanical; microstructure; particles; plastic; plastic deformation; polytechnica; post; precipitation; pressing; process; properties; science; section; solution; specimen; state; strength; surface; tensile; test; treatment
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        item: #695 of 1243
          id: ap-3455
      author: Quan, Guan; Huang, Shan-Shan; Burgess, Ian
       title: PARAMETRIC STUDIES ON THE COMPONENT-BASED APPROACH TO MODELLING BEAM BOTTOM FLANGE BUCKLING AT ELEVATED TEMPERATURES
        date: 2016-04-30
       words: 5865
      flesch: 68
     summary: The Cardington fire tests [4] indicated that beam- web shear buckling, as well as beam bottom-flange buckling, near to the ends of steel beams, is very prevalent under fire conditions, as shown in Fig. Conclusions This paper has briefly reviewed an analytical model proposed to predict the post-buckling behaviour of the end-zones of steel beams at elevated temperatures.
    keywords: abaqus; analytical; analytical model; beam; behaviour; buckling; buckling fig; cantilever; comparisons; component; contraflexure; deflection; development; dharma; element; end; fig; finite; fire; flange; flange buckling; force; length; lines; load; loading; model; modelling; panel; plastic; point; post; proposed; relationship; shear; shear buckling; steel; structural; temperatures; thickness; vertical; web; work; zone
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        item: #696 of 1243
          id: ap-3457
      author: Háková, Lenka; Hrivnák, Jiří; Motlochová, Lenka
       title: ON CUBATURE RULES ASSOCIATED TO WEYL GROUP ORBIT FUNCTIONS
        date: 2016-06-30
       words: 7271
      flesch: 72
     summary: Keywords: Weyl group orbit functions; Jacobi polynomials; cubature formulas. Basic definitions This section reviews the basic concepts and notation from the theory of root systems, Weyl groups and Weyl group orbit functions.
    keywords: acta; algebra; basis; btλ; case; chebyshev; choice; clenshaw; coefficients; corresponding; cubature; cubature formulas; curtis; degree; domain; dual; exact; families; figure; following; formulas; functions; fundamental; group; hrivnák; integral; integration; itm; jacobi; lie; math; method; motlochová; negative; non; numerical; orbit; orbit functions; orthogonal; p(λ; patera; points; polynomials; polytechnica; region; roots; rules; section; set; simple; special; ssλ+%s; systems; t =; triangle; values; variables; weight; weyl; weyl group; |stabw; λ1,λ2; ∈{0
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        item: #697 of 1243
          id: ap-346
      author: Jokl, M. V.
       title: The Danger of Toxic Substances
        date: 2002-01-03
       words: 6190
      flesch: 59
     summary: Exhaust fumes from diesel engines produce in addition to NOx and other toxic agents, 3-nitrobenzatrone, which is the most carcinogenic agent discovered so far. Indoor ozone concentration is usually about a half of the outdoor ozone concentration.
    keywords: + +; acid; acta; admissible; agents; air; atmosphere; breathing; building; carbon; coal; combustion; concentration; czech; dangerous; decay; decrease; dioxide; eco; energy; engines; fig; formaldehyde; gases; harmful; health; higher; hours; human; hydrocarbons; impact; increase; indoor; interior; jokl; kwh; lower; lungs; materials; minutes; monoxide; nitrogen; non; oil; organic; organism; outdoor; oxides; oxygen; ozone; plants; pollution; polytechnica; ppb; quality; research; result; room; smog; smoke; smoking; source; substances; sulfur; table; technical; teflon; time; tobacco; toxic; toxic substances; university; use; value; ventilation; vol; year
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        item: #698 of 1243
          id: ap-3470
      author: Vrána, Tomáš; Bradáč, Josef; Kovanda, Jan
       title: ELASTO-KINEMATIC COMPUTATIONAL MODEL OF SUSPENSION WITH FLEXIBLE SUPPORTING ELEMENTS
        date: 2016-04-30
       words: 5388
      flesch: 56
     summary: doi:10.1007/978-94-007-5404-1. 155 http://dx.doi.org/10.1007/978-3-658-05068-9 http://dx.doi.org/10.1007/978-3-540-68553-1 http://dx.doi.org/10.1016/S0168-874X(98)00070-5 http://dx.doi.org/10.1007/978-3-540-89315-8 http://dx.doi.org/10.1016/j.mechmachtheory.2005.11.003 http://dx.doi.org/10.1115/1.2826715 http://dx.doi.org/10.1243/095440703322114915 http://www.altairuniversity.com/14225-practical-aspects-of-multi-body-simulation-with-hyperworks-free-book/ http://www.altairuniversity.com/14225-practical-aspects-of-multi-body-simulation-with-hyperworks-free-book/ http://www.altairuniversity.com/14225-practical-aspects-of-multi-body-simulation-with-hyperworks-free-book/ http://dx.doi.org/10.1007/978-94-017-0287-4 http://www.altairhyperworks.com/ClientCenterHWTutorialDownload.aspx http://www.altairhyperworks.com/ClientCenterHWTutorialDownload.aspx http://dx.doi.org/10.1007/978-94-007-5404-1 Acta Polytechnica 56(2):147–155, 2016 1 Introduction 2 MBS model in HyperWorks 3 MBS computational model of independent suspension 3.1 Creation of MBS model 3.2 Flexible models of suspension supporting elements 3.3 Creation of interface nodes 4 Simulations computations 5 Validation of MBS model 5.1 Validation of inertia moments of suspension supporting elements 5.2 Experimental measurement 6 Results and discussion 6.1 Effect of supporting elements flexibility during wheel vertical motion 6.2 Effect of supporting elements flexibility during action of side force 6.3 Effect of supporting elements flexibility during action of longitudinal force 7 Conclusion References Vehicle dynamics simulations with coupled multibody and finite element models.
    keywords: account; action; angle; arms; bushings; calculated; camber; change; characteristics; computational; effect; elast+flex; elasto; elements; equations; experimental; f(dz; fem; figure; flexibility; flexible; flexible model; force; help; hyperworks; independent; inertia; kinematic; knuckle; load; longitudinal; mbs; mbs model; measurement; mechanism; metal; method; model; natural; nodes; number; parameters; properties; rbe2; results; rigid; rod; rubber; subframe; suspension; system; toe; transverse; values; vehicle; vertical; wheel
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        item: #699 of 1243
          id: ap-348
      author: Kreidl, M.; Houfek, P.
       title: Using the Correlation Function in Ultrasonic Non-destructive Testing
        date: 2002-01-03
       words: 2380
      flesch: 66
     summary: 3: Relationship between noise reduction coefficient �SN of the synthetic signal x(nTv) with the noise ratio SNR � 21 dB, frequencies f and damping coefficients � of the simulated ultrasonic impulse defined by Eq. � ��SN dBef2 ef2 ef1 ef1 � � � � � �20 log U N U N , (5) where Nef1 RMS value of the additive noise in the signal, Nef2 RMS value of noise included in the signal after application in a given algorithm, Uef1 RMS value of the ultrasonic signal, e.g., cor- responding to the flaw echo in the measured signal, Uef2 RMS value of the ultrasonic signal, when applying the tested algorithm.
    keywords: algorithms; coefficient; correlation; cross; echo; fig; flaw; frequency; function; impulse; mhz; noise; ntv; optimum; parameters; real; reduction; signal; simulated; snr; ultrasonic; value
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        item: #700 of 1243
          id: ap-3483
      author: Grundland, Alfred Michel; Levi, Decio; Martina, Luigi
       title: ON IMMERSION FORMULAS FOR SOLITON SURFACES
        date: 2016-06-30
       words: 9351
      flesch: 71
     summary: = ϕk − ξαukα, (2.4) where the operators DJ correspond to multiple total derivatives, each of which is a combination of total derivatives of the form Dα = ∂α + ukJ,α ∂ ∂ukJ , α = 1, . . . ,p) and U (with coordinates uk, k = 1, . . .
    keywords: acta; algebra; associated; cambridge; compatibility; conformal; construction; corresponding; curvature; differential; dαf; equations; field; fokas; following; follows; formula; function; gauge; gel’fand; generalized; group; grundland; immersion; immersion formula; independent; infinitesimal; integrable; integrated; jet; levi; lie; lsp; martina; math; matrices; matrix; model; parameter; pdes; phys; polytechnica; problem; projectors; results; satisfy; section; sigma; soliton; soliton surfaces; solution; space; spectral; su(2)-valued; surfaces; symmetries; symmetry; system; tafel; tangent; terms; transformations; u(n; vector; vol; wavefunction; zcc; |z|2; |z|2)2; φ−1; ω[u; ωrφ
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        item: #701 of 1243
          id: ap-3487
      author: Sovják, Radoslav; Máca, Petr; Imlauf, Tomáš
       title: EFFECT OF FIBRE ASPECT RATIO AND FIBRE VOLUME FRACTION ON THE EFFECTIVE FRACTURE ENERGY OF ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE
        date: 2016-08-31
       words: 5467
      flesch: 61
     summary: Yoo et al. also reported that the compressive strength was somewhat independent from the fibre geometry. Yoo et al. tested UHPFRC up to 4 % of the fibre volume fraction, and the effective fracture energy values tended to increase as the fibre volume increased (Fig. 9).
    keywords: aspect; aspect ratio; beams; cement; compressive; concrete; content; doi:10.1016; effective; effective fracture; energy; engineering; et al; experimental; fiber; fibre; fibre aspect; fibre volume; fig; figure; fraction; fracture; fracture energy; high; impact; journal; linear; loading; material; measured; mixture; model; mpa; performance; properties; ratio; reference; results; sample; sovják; steel; strength; study; tensile; tested; uhpfrc; ultra; value; volume; yoo
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        item: #702 of 1243
          id: ap-3488
      author: Dong, Youwei; Rahmani, Ahmed
       title: FORMATION CONTROL OF MULTIPLE UNICYCLE-TYPE ROBOTS USING LIE GROUP
        date: 2016-02-29
       words: 6244
      flesch: 74
     summary: Lie algebra application to mobile robot control: a tutorial. Introduction The various ways to control and coordinate a group of mobile robots widely have been studied in recent years.
    keywords: acta; aij; algebra; angle; case; circle; communication; configuration; control; cos; directed; equation; exp; figure; formation; formation control; frame; global; graph; group; ḡi; initial; kinematic; law; lie; local; matrix; mobile; motion; multi; multiple; nonholonomic; origin; phase; polytechnica; position; problem; relative; results; robot; rotation; se(2; set; sgn; sin; so(2; system; tan; topology; type; unicycle; velocity; wheels
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        item: #703 of 1243
          id: ap-3493
      author: De Bie, Hendrik; Genest, Vincent Xavier; Lemay, Jean-Michel; Vinet, Luc
       title: A SUPERINTEGRABLE MODEL WITH REFLECTIONS ON S^3 AND THE RANK TWO BANNAI-ITO ALGEBRA
        date: 2016-06-30
       words: 3832
      flesch: 72
     summary: Recently, superintegrable models defined by Hamiltonians involving reflection operators have been the subject of several investigations The study of superintegrable models has proved fruitful in understanding symmetries and their algebraic description, and has also contributed to the theory of special functions.
    keywords: acta; algebra; bannai; dunkl; eigenfunctions; genest; hamiltonian; ito; i∈a; j1,j2,j3; math; model; operators; osp(1|2; phys; polynomials; polytechnica; quantum; rank; reflections; relations; s21+s; sigma; space; sphere; superalgebra; superintegrable; symmetries; symmetry; system; theor; v.x; vinet; zhedanov; ψ̃m
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        item: #704 of 1243
          id: ap-350
      author: Čepek, A.
       title: The GNU GaMa Project - Adjustment of Geodetic Networks
        date: 2002-01-03
       words: 3128
      flesch: 57
     summary: Our primary platform is GNU/Linux, and to help our users to use GaMa adjustment we have been run- ning a mail-server and a web interface (WebGaMa) based on the PHP scripting language. 2 About GNU GaMa The GaMa project (the acronym comes from Geodesy and Mapping) provides free software written in C++, released under the terms of the GNU General Public Licence
    keywords: academy; acta; adjustment; available; c++; cit; czech; data; design; development; direction; education; example; fig; format; foundation; free; future; gama; general; geodetic; gnu; house; http://ctn.cvut.cz/ap/; idea; inc; input; language; linux; matrix; model; networks; observation; point; polytechnica; project; publishing; rocinante; software; students; technical; university; virtual; vol; web; xml; čepek
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        item: #705 of 1243
          id: ap-3502
      author: Znojil, Miloslav
       title: IS PT-SYMMETRIC QUANTUM THEORY FALSE AS A FUNDAMENTAL THEORY?
        date: 2016-06-30
       words: 2722
      flesch: 57
     summary: [9] have developed PT -symmetric quantum theory as an extension of quantum theory to non-Hermitian Hamiltonians”) by some more appropriate outline of the history. By their opinion their results “essentially kill any hope of PT -symmetric quantum theory as a fundamental theory of nature”.
    keywords: -symmetric; bender; conclusions; evolution; false; fundamental; h(f; h(s; hamiltonian; hermiticity; hilbert; inner; lee; lett; locality; model; nature; non; paper; phys; physical; ptqm; quantum; quantum theory; rev; space; standard; theory; toy; unitary; znojil
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        item: #706 of 1243
          id: ap-3506
      author: Gazeau, Jean-Pierre
       title: COVARIANT INTEGRAL QUANTIZATIONS AND THEIR APPLICATIONS TO QUANTUM COSMOLOGY
        date: 2016-06-30
       words: 4851
      flesch: 58
     summary: Keywords: integral quantization; covariance; POVM; affine group; Weyl-Heisenberg group; coherent states; FRW model; smooth bouncing. In Section 5 we illustrate the method with recent applications to quantum cosmology where the initial singularity is regularized by using the affine integral quantization.
    keywords: acta; affine; applications; bergeron; bianchi; canonical; classical; coherent; complex; coset; cosmology; covariant; density; dynamics; dµ(g; example; f(q; functions; gazeau; group; half; heisenberg; hilbert; identity; integral; integral quantization; j.-p; like; line; map; mathematical; małkiewicz; measure; method; model; motion; operator; phase; phys; physical; plane; polytechnica; positive; povm; quantization; quantum; real; representation; rev; section; self; semi; sense; singularity; space; square; symmetry; uir; unitary; universe; weyl
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        item: #707 of 1243
          id: ap-3509
      author: Szajewska, Marzena; Tereszkiewicz, Agnieszka
       title: TWO-DIMENSIONAL HYBRIDS WITH MIXED BOUNDARY VALUE PROBLEMS
        date: 2016-06-30
       words: 4105
      flesch: 79
     summary: The recent discovery of new families of special functions, orthogonal on F , makes it possible to consider not only the Dirichlet or Neumann boundary value problems on F , but also the mixed boundary value problem which is a mixture of Dirichlet and Neumann type, ie. A surprising variety of recently emerged suitable new families of special functions makes that the realization of this idea is relatively simple and straightforward in any dimension.
    keywords: 2π2; basis; boundary; branching; case; condition; cos; dirichlet; families; figure; following; form; functions; fundamental; group; mixed; neumann; normal; problems; region; section; separation; sin; sla; special; ssa; szajewska; table; value; weyl
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        item: #708 of 1243
          id: ap-3511
      author: Háková, Lenka; Tereszkiewicz, Agnieszka
       title: ON GENERALIZATION OF SPECIAL FUNCTIONS RELATED TO WEYL GROUPS
        date: 2016-12-31
       words: 4554
      flesch: 74
     summary: Weyl group orbit functions are defined in the context of Weyl groups of simple Lie algebras. Weyl group orbit functions The standard way of defining four families of orbit functions uses the concept of sign homomorphisms, i.e., mappings σ :
    keywords: algebras; character; character functions; continuous; corresponding; discrete; domain; families; finite; following; functions; generalization; groups; homomorphisms; irreducible; jiří; linear; orbit; orthogonality; paper; patera; properties; rank; related; respect; roots; simple; special; theorem; weyl; weyl groups; w∈w; w∈w(a3; λ,µ; −1 −1
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        item: #709 of 1243
          id: ap-3517
      author: Hrivnak, Jiri; Motlochova, Lenka
       title: ON CONNECTING WEYL-ORBIT FUNCTIONS TO JACOBI POLYNOMIALS AND MULTIVARIATE (ANTI)SYMMETRIC TRIGONOMETRIC FUNCTIONS
        date: 2016-08-31
       words: 5374
      flesch: 68
     summary: [6] L. Háková, J. Hrivnák, J. Patera, Four families of Weyl group orbit functions of B3 and C3, J. Math. Formulas for connection between the four types of orbit functions of Bn or Cn and the (anti)symmetric multivariate cosine and sine functions are explicitly derived.
    keywords: a2)b2; algebras; antisymmetric; case; chebyshev; connection; constant; corresponding; cosine; discrete; formulas; functions; generalizations; groups; hrivnák; jacobi; k=1; lie; math; motlochová; multivariate; orbit; orbit functions; orthogonal; orthogonality; patera; phys; polynomials; roots; simple; sin; special; symmetric; trigonometric; variables; weyl; |stabw; π(k1; σ∈sn
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        item: #710 of 1243
          id: ap-352
      author: Novák, M.; Faber, J.; Votruba, Z.; Přenosil, V.; Tichý, T.; Svoboda, P.; Tatarinov, V.
       title: Reliability of Human Subject - Artificial System Interactions
        date: 2002-01-03
       words: 7188
      flesch: 50
     summary: All these factors combine, with the result that the reliability of human subject – artificial system interaction is limited, above all from the human side. The price that we all pay for insufficiently reliable hu- man – artificial system interaction (above all from the human side) is tremendous.
    keywords: acceptable; acta; activity; analysis; approach; artificial; artificial system; attention; basis; case; certain; closed; control; correct; course; czech; dangerous; decrease; demands; drivers; eeg; efficiency; example; eyes; factors; fast; fig; general; high; house; http://ctn.cvut.cz/ap/; human; human operator; human subject; important; information; interaction; level; life; long; measurements; mental; methods; micro; neural; operation; operator; organism; parameters; polytechnica; probability; problem; pseudo; publishing; reaction; real; region; reliability; results; set; signals; sleep; spectral; state; subject; system; system interaction; technical; time; university; values; vigilance; vol
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        item: #711 of 1243
          id: ap-3521
      author: Med, Michal; Souček, Petr
       title: ANALYSIS AND IMPLEMENTATION OF APPLICATION SCHEMAS FOR THE INSPIRE BUILDINGS THEME
        date: 2016-08-31
       words: 6459
      flesch: 53
     summary: The Joint Research Center publishes XML schemas for INSPIRE application schemas on its web page http://inspire.ec.europa.eu/schemas/. For the Buildings theme, only three application schemas have corresponding XML schemas that have already been published. The ways in which the data will be published are described in detail in the Tech- nical Guidance documents for the implementation of INSPIRE Network services.
    keywords: abstract; acta; application; application schemas; attribute; buildingpart; buildings; buildings theme; buildingsextended2d; cadastre; code; commission; content; czech; data; database; datasets; directive; document; download; elements; european; feature; figure; files; geometry; gml; guidance; implementation; information; inspire; inspire data; iskn; iso; isui; mapping; metadata; national; necessary; number; office; parts; point; polytechnica; portrayal; publication; republic; schemas; services; source; spatial; specification; standard; structure; surveying; technical; theme; transformation; type; use; version; view; web; xml; xml schemas
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        item: #712 of 1243
          id: ap-3524
      author: Levi, Decio; Rodriguez, Miguel A.
       title: ON THE CONSTRUCTION OF PARTIAL DIFFERENCE SCHEMES II: DISCRETE VARIABLES AND SCHWARZIAN LATTICES
        date: 2016-06-30
       words: 5973
      flesch: 64
     summary: + k0 xn,m, τn,m = k3 (32) which clearly do not satisfy (16). Our first choice for the difference scheme is an orthogonal cartesian lattice given, in the coordinates hn,m and σn,m by hyn,m = b, σ y n,m = 0, h x n,m = a, σ x n,m = 0, (29) where a and b are arbitrary constants, which in the continuous limit go to zero.
    keywords: 0,0; burgers; case; clairaut; construction; continuous; difference; differential; discrete; equation; exact; exponential; figure; group; h y; hyn; independent; invariant; lattice; levi; limit; m −σ; m+j; n+i; non; numerical; order; orthogonal; partial; phys; points; potential; results; schemes; schwarz; schwarzian; section; solutions; symmetries; symmetry; theorem; variables; winternitz; x n; y 0,0; y m; y n; young; σ y; −un
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        item: #713 of 1243
          id: ap-3537
      author: Likhonina, Raissa
       title: FINITE ELEMENT MODELLING AND SIMULATION OF VEHICLE IMPACT ON STEEL SAFETY BARRIERS
        date: 2016-12-31
       words: 4353
      flesch: 60
     summary: And the authors of such publications have come to a similar conclusion that FEA simulation is a very helpful tool for design and construction as well as for testing of crash barriers. Moreover, the calculation results can be used to design and test new and completely innovative types of crash barriers.
    keywords: acta; ansysr; barriers; calculations; comparison; construction; crash; crash tests; cylinder; czech; density; element; energy; fea; figure; finite; forces; impact; internal; jsam-2; jsnh4; knm; length; lower; manufacturer; mass; material; model; modelling; new; numerical; parameters; parts; polytechnica; real; results; road; safety; simulation; standards; steel; table; tb11; tb42; technical; tests; thickness; time; types; university; value; vehicle; workbenchtm
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        item: #714 of 1243
          id: ap-354
      author: Šulc, B.; Jan, J. A.
       title: Non Linear Modelling and Control of Hydraulic Actuators
        date: 2002-01-03
       words: 3905
      flesch: 65
     summary: (3) we obtain the equations � � � � � �� � � oil c c oil 1 oil d d d d p A x t V A x p p p t p Q Q 1 1 0 1 1 1 1 1 � � � � � , i � � � � � nt , i � � � � � � �� � � oil c c oil 2 oil d d d d p A x t V A x p p p t p Q 2 2 0 2 2 2 2 �nt � �Q Qext 2 (4) � � d d d d d d 1 oil c c 2 o p t p V A x Q A x t Q p t � � � 1 0 1 1 1 1 , int � � � �� � �� � � � il c ext c 2 d d p V A x Q Q A x t Q2 0 2 2 2 , int � � � � �� � �� (5) where � � � � Q C x p p p p x p p p p Q C 1 0 1 1 0 0 2 0 � � � � � � � � � ( ) ( sgn sgn sg sg s s s s 1 1 � � � � sg sg s 2 2 s s s x p p p p x p p p p sgn sgn ) � � � � � � � 0 0 2 2 (6) � � Q k p p Q k p int int , , � � � 1 2 2 2 2ext ext where coefficients kint and kext, 2 can be evaluated by means of the general formula by [12] k d r r L C Q p leak i c c 3 N N 6 � �� � � � � � � � 2 0 5 0 . We used the logical operator OR with max function as given below: �y x x� �max , ,1 2 In our case we had one output and five rules.
    keywords: actuator; control; controller; cylinder; czech; differential; error; fig; flc; friction; function; fuzzy; gaussian; hydraulic; int; isbn; linear; logic; matlab; membership; model; modelling; oil; output; p p; parameters; piston; position; sigmoid; simulink; spool; time; values; valve; variables; velocity; vol; windup
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        item: #715 of 1243
          id: ap-3555
      author: Senk, Josef; Jakubova, Ivana; Laznickova, Ilona
       title: ANALYSIS OF INTENSIVELY BLASTED ELECTRIC ARC BURNING IN THE ARC HEATER'S ANODE CHANNEL
        date: 2016-10-31
       words: 4239
      flesch: 61
     summary: (6) Solving the equation system in the mash step by step gives axial dependences of arc temperature TA(z), electric field intensity E(z), Mach number Ma(z), power loss Pl(z), voltage UA(z) and finally, at the end, the total arc voltage UA(zL) and Pl(zL) as sums of individual increments. As could be expected, for higher arc currents, the conditions for the arc burning are built in a closer vicinity of the cathode and the arc temperature is higher.
    keywords: anode; anode channel; anode spot; arc; arc radius; arc temperature; arc voltage; argon; argon flow; cathode; channel; corresponding; cross; current; data; different; drop; electric; electric arc; figure; flow; gas; heater; higher; input; loss; measured; model; near; power; power loss; radius; rate; regions; section; spot; temperature; total; voltage
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        item: #716 of 1243
          id: ap-356
      author: Římal, J.
       title: Prague Loretto - Measurements of Moisture Content in Sculptural Group Material
        date: 2002-01-03
       words: 2312
      flesch: 51
     summary: This method facilitates monitoring of moisture distribution and, therefore, the condition of the sculptural group in a spatial perspective. Keywords: Prague Loretto, measurement of moisture fields, mass transport.
    keywords: acta; condition; content; copper; czech; distribution; effects; electrodes; group; house; http://ctn.cvut.cz/ap/; loretto; mass; measured; measurements; moistening; moisture; period; points; polytechnica; prague; rainfall; s u; sandstone; sculptural; sculptural group; structure; surface; technical; university; values; vol; water
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        item: #717 of 1243
          id: ap-358
      author: Římal, J.
       title: Measurement of Moisture Fields in the Bridge Structure of Charles Bridge
        date: 2002-01-03
       words: 2566
      flesch: 51
     summary: 3.2 Conditions for moisture field measurement It is necessary to make changes in temperature and moisture fields at the same measurement points and at equal time points, i.e. almost at the same time. Moisture field measurement cannot be performed without parallel temperature field measurement.
    keywords: acta; arch; bridge; bridge structure; changes; charles; charles bridge; clay; concrete; conditions; czech; field; graph; house; http://ctn.cvut.cz/ap/; material; measurement; methods; moisture; moisture field; pavement; point; polytechnica; prague; sensors; slab; structure; technical; temperature; time; university; vol; walls; water
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        item: #718 of 1243
          id: ap-360
      author: Hasal, P.; Kratěna, J.; Fořt, I.
       title: Frequency and Magnitude Analysis of the Macro-instability Related Component of the Tangential Force Affecting Radial Baffles in a Stirred Vessel
        date: 2002-01-03
       words: 6078
      flesch: 56
     summary: *, , ,� � �1 . The frequency of occurrence of macro-instability related force component is also analysed.
    keywords: acta; analysis; baffles; blade; blade impeller; chemical; clearance; component; czech; data; dimensionless; eigenmodes; engineering; experimental; fig; flow; fmi; force; fořt; frequency; glycerine; h h2; house; http://ctn.cvut.cz/ap/; impeller; instability; liquid; local; macro; magnitude; mean; measured; mixing; number; pattern; pod; polytechnica; power; publishing; radial; related; relative; rem; solution; standard; stirred; tangential; tangential force; target; technical; total; university; value; velocity; vessel; vol
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        item: #719 of 1243
          id: ap-362
      author: Dobrovská, D.; Andres, P.
       title: Technical Teachers and Technical Teacher Education - Research Results
        date: 2002-01-04
       words: 3015
      flesch: 48
     summary: 4/2002 4 Conclusions � to gain a “further qualification” or a “higher income” are leading motives for technical teachers to study teacher education, while ”interest” in pedagogical study is less common � most technical teachers have no previous experience with non-technical subjects � psychology is the most popular “human science” chosen by technical teachers � most of the respondents agree that technical teacher edu- cation should be obligatory; some have no opinion about the problem � a timetable involving one day weekly is acceptable for most respondents, but they are not in consensus about the desirable length of the programme (ranging from 1 to 4 semesters) � most technical teachers consider that e-learning is not quite suitable for technical teacher education � most also believe that technical university teachers should take some complementary teacher education courses � some subjects studied in technical teacher education are more popular or are felt to be more useful; others are less popular or considered less useful. yes 60 no 6 no opinion 32 other opinion 9 Fig. 11: Do you think technical teacher education should be ob- ligatory for technical university teachers? Subjects Present number of hours Frequency of deviations from the present number of hours (up to)
    keywords: answer; ctu; czech; education; engineering; fig; frequency; learning; motivation; non; obligatory; opinion; present; programme; qualification; respondents; school; semesters; studies; study; subjects; teacher; teaching; technical; time; university
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        item: #720 of 1243
          id: ap-364
      author: Červenka, M.; Bednařík, M.; Koníček, P.
       title: Temperature Effects in Acoustic Resonators
        date: 2002-01-04
       words: 3046
      flesch: 63
     summary: (10), applicable equations are derived from relations (8) and (9) � � � � � � � � � � � � � �p t ax x c t ax� �� � � � �� � � �� � � � � � 2 2 2 0 2 0� � � � � �� � � � � � � � � � � � � 2 0 2 0 2 2 0 1 4 3c t x a t c c p � � � � � � � d d � 2 01� � �� � � � � � � � ��� � � t ax , (11) � � � � � � � � � � � � �� � � � �� � � � � c t c ax c x0 2 0 0 2 0 0 2 0 2 2 � � � � � � � � � c c c c b c p p 0 2 0 2 0 4 3 2 0 3 0 4 0 1 2 1� � � �� �� � � � � � � � � �� � � �� � � � � � � � �� � � � � � � � � � � � � � � �� � �� 2 2 2 0 4 0 01 1 � � � � �� t x a t c d d � � �� � � � � � � �� � � � � � � � � � � � � � 2 21 2 1 �� � � �� �t ax c t axp � � � � � .
    keywords: account; acoustic; derivative �; distribution; e �; equation; fig; line; mean; model; resonator; temperature; vol; � b; � exp; � ij
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        item: #721 of 1243
          id: ap-366
      author: Bálek, R.; Šlegrová, Z.
       title: A Comparison of Acoustic Field Measurement by a Microphone and by an Optical Interferometric Probe
        date: 2002-01-04
       words: 2738
      flesch: 62
     summary: A z A A, sin sin� � � �0 1 1 1 0 2 2 2� � � � . t p t� � � �0 0 1 1 1 0 2 2 2sin sin , (7) or, more simply, � � � � � �� � �z z zt t t� �1 2 (8) � � � �� z izt k p t� 0 , (9) where piz(t) is the integral value of the acoustic pressure.
    keywords: acoustic; acoustic pressure; amplitudes; axis; buffer; diffraction; field; fig; frequency; generator; harmonic; integral; interaction; khz; laser; light; measured; measurement; microphone; nath; optical; piston; power; pressure; probe; radiator; raman; results; signal; table; theory; waves
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        item: #722 of 1243
          id: ap-368
      author: Koníček, P.; Bednařík, M.; Červenka, M.
       title: Propagation of Quasi-plane Nonlinear Waves in Tubes
        date: 2002-01-04
       words: 6252
      flesch: 67
     summary: The operators are defined for axisymmetric waves in the cylindrical coordinates by � � � � � � � � � � 2 2 2 2 1 z r r r , (3) � � �e ez r � � � �z r , (4) where z is the coordinate along the axis of the tube, r is the coordinate perpendicular to the axis of the tube, ez is the unit vector along the z axis and er is the unit vector along the r axis. (1) � � � � � � � �� � �� � 2 2 0 2 0 2 2 21 2t c t c t z � � � � � � � � � � � � � � � � � � � � � � � b c t O � � � � 0 0 2 3 3 ( ).
    keywords: acoust; acoustic; acta; amplitude; boundary; burgers; case; circular; component; condition; czech; distribution; duct; effects; equation; finite; frequency; harmonic; house; http://ctn.cvut.cz/ap/; khz; kzk; kzk equation; layer; longitudinal; means; method; nonlinear; numerical; order; plane; polytechnica; propagation; radius; soc; solution; sound; source; technical; transverse; tube; university; velocity; vol; waveguide; waves; � b; � v; � �
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        item: #723 of 1243
          id: ap-370
      author: Sýkora, M.
       title: Reliability Analysis of a Steel Frame
        date: 2002-01-04
       words: 5769
      flesch: 61
     summary: d G frame, k roof, k Q snow, k 0 w wind, k � � � � � � � � � � (1) � � � � M M M M M d G frame, k roof, k Q snow, k 0 w wind, k � � � � � � � � � � (2) where � � 0.85 is the reduction factor for permanent actions, �G � 1.35 is the partial factor for permanent actions, �Q � 1.5 is the partial factor for variable actions, and �0,w � 0.6 is the fac- tor for the combination value of the wind action. The design criterion for buckling without lateral-torsional buckling is expressed as: N A f C M W f Sd y, k M1 y my Sd, y p1, y y, k M1 k � � � �1 (6) where, in the critical cross-section of the column, NSd � 115 kN is the design value of the axial force due to the actions, � � 0.63 is the buckling coefficient (the lower of the values �y � 0.63 and �z � 0.80), A is the area of the relevant cross-section (AIPE330 � 6261 mm 2), fyk � 275 MPa is the characteristic value of the yield strength of the steel S275, �M1 � 1.1 is the partial factor for the material property, ky � 1.09 is the moment amplification factor, Cmy � 0.95 is the equivalent uniform moment factor, MSd,y � 132 kNm is the design value of the bending moment due to the actions and Wpl,y is the plastic sectional modulus ( Wpl, y, IPE330 � 804�10 3 mm3).
    keywords: actions; analysis; annual; area; axial; basic; bound; buckling; characteristic; coefficient; criterion; critical; cross; czech; design; extremes; factor; fig; force; frame; index; invariant; ipe; lateral; load; lower; model; parameters; pressure; probabilistic; reliability; reliability analysis; results; roof; section; sectional; snow; snow load; statistical; structural; time; torsional; value; variables; variant; wind; year
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        item: #724 of 1243
          id: ap-372
      author: Novák, J.
       title: Analysis of Phase Evaluation Algorithms in an Interferometric Method for Static Deformation Measurement
        date: 2002-01-04
       words: 5176
      flesch: 61
     summary: The resulting error of phase values �� is then given by � �� � � �� � �� � � , (14) where are the calculated phase values and �� are the original phase values. 42 No. 4/2002 A1: N � 3, � � � 4 tan , , , , , , , , �� � � � a b a b a b a b 12 3 2 3 2 12 12 12 3 2 3 2 A2: N � 3, � � � 2 � � � � tan , , , , , , , , , , �� � � � � � � a b b b a a a b a a 1 3 2 3 12 1 3 2 3 12 1 3 1 3 2 3 1� �� �2 2 3 12b b, ,� A3: N � 3, � � 2 3� � � � �� � tan , , , , , , , , , �� � � � � � � 3 3 3 2 12 1 3 3 2 12 1 3 3 2 3 2 12 a b b b a a a b a a� �� �1 3 12 1 3, , ,b b� A4: N � 5, � � � 2 � � � � � � tan , , , , , , , , , �� � � � � � � 2 2 4 3 1 3 5 2 4 3 1 3 5 3 1 3 5 3 1 3 b a a a b b a a b b� �, , ,5 2 4 2 44� a b A5: N � 5, � � � 2 � � tan , , , , , , , , �� � � � � � � �7 3 3 3 34 2 1 3 5 3 12 5 4 4 2 1 3 5 3a b b b b b a a a� �� � � � 12 5 4 4 2 4 2 1 3 5 3 12 5 4 1 3 549 3 3 3 3 , , , , , , , , , , � � � � � � a a b a a a a b b� �3 12 5 4� �b b, , A6: N � 7, � � � 2 � �� � � �� � tan , , , , , , , , �� � � � � � �7 4 4 7 4 4 4 3 5 17 4 2 4 6 3 5 17 4 2 4 6b b a a a a b b � �� � � �� �a a b b a a b b4 2 4 6 4 2 4 6 3 5 17 3 5 174 4 4 7 7, , , , , , , ,� � � � � A7: N � 7, � � � 3 � �� � � � tan , , , , , , , , , �� � � � � � � � �3 6 2 5 3 1 3 2 4 6 4 7 5 6 2 5 3 1 3a a b b b b b b a� �� � � �� � a a a a a b b a a a a 2 4 6 4 7 5 6 2 5 3 6 2 5 3 1 3 2 4 6 43 , , , , , , , , , , � � � � � � � �� �� �7 5 1 3 2 4 6 4 7 5, , , , ,b b b b� � � A8: N � 9, � � � 4 � �� � tan , , , , , , , , , �� � � � � � � � �b b b a a a a a a2 8 3 7 4 6 4 1 5 2 5 8 6 9 2 8 32 2� �� � � � 7 4 6 4 1 5 2 5 8 6 9 2 8 3 7 4 6 2 8 3 72 2 � � � � � � � a b b b b a a a b b , , , , , , , , , ,� � � �� �� � � � � � � �b a a a a b b b b4 6 4 1 5 2 5 8 6 9 4 1 5 2 5 8 6 9, , , , , , , , , A9: N �11, � � � 2 � � � �� � tan , , , , , , , �� � � � � � � �4 8 15 2 4111 9 3 5 7 2 4 10 8 6 4 6 8 1b b b a a a a a� � � �� �, , , , , , , , , 11 9 3 5 7 2 4 10 8 6 4 6 8 111 9 3 8 15 2 8 1 � � � � � � � a a b b b b a a� �� � � �� �5 8 15 16 25 7 111 9 3 5 7 2 4 10 8 6 4 6 8 2a b b b a a a a b, , , , , , , , ,� � � � � � � �� �4 10 8 6 4 6 82� � �b b b, , , Table 3 the fastest three-step and the slowest eleven-step algorithm is approximately 25 %.
    keywords: accuracy; algorithms; analysis; b b; beam; calculation; change; computing; czech; device; different; error; evaluation; factors; field; house; intensity; interference; measurement; measuring; method; model; number; object; optical; phase; phase calculation; process; publishing; random; shifting; step; systematic; technique; time; university; values; vol; wave; � tan
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        item: #725 of 1243
          id: ap-374
      author: Procházka, P. P.; Kugblenu, M. G.
       title: Certain Discrete Element Methods in Problems of Fracture Mechanics
        date: 2002-01-04
       words: 7679
      flesch: 65
     summary: x x n�ik i k 2 j jr �� � � � � � 2 where � � � � � � � �A M� � � � � � �� � �� � � � � � �4 2 3, , � �k x x r x x� � � � � �� � � �, , ,i i i 2 1 2 2 2 and � and � are Lame’s material constants. Let us introduce vectors �s, �s, s = 1, …, 6, and also u and p as: � � � � � � � � s s s s s s� � � � � � � � � u u p p 1 2 1 2 1 2 3 4 5 6 , , u � � � � � � � , p � � � � � � 1 2 3 4 5 6 � � � � , b b b b b b b 1 2 3 4 5 6 � � � �� �k s i s ik s k s i s ik s s s
    keywords: acta; adjacent; behavior; boundary; case; conditions; contact; czech; direction; discrete; disk; displacements; domain; elastic; element; equations; fig; forces; free; hexagonal; house; http://ctn.cvut.cz/ap/; ij ij; ij t; ji �; k k; k n; k t; k u; k �; material; matrix; method; n ij; nij; normal; paper; parameters; particles; point; polytechnica; problem; properties; publishing; rotation �; sin; solution; spring; stiffness; tangential; technical; tractions; tran; u u; u x; university; unknown �; vol; y ij; � cos; � j; � n; � s; � t; � tan; � y; � �
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        item: #726 of 1243
          id: ap-376
      author: Novák, J.
       title: New Phase Shifting Algorithms Insensitive to Linear Phase Shift Errors
        date: 2002-01-04
       words: 3294
      flesch: 66
     summary: The modelled function � �� �� that is shown in Fig. 1 expresses the obtained accuracy for arbitrary phase values �� and the chosen phase shift value �. Then according to the sign of the expressions we can de- termine the wrapped phase values � ��� � �W � , .
    keywords: accuracy; algorithms; analysis; calculation; computing; czech; detector; error; evaluation; house; intensity; interference; interferometric; measurement; methods; new; optical; phase; phase shift; publishing; shift; table; tan �; technique; time; values; vol
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        item: #727 of 1243
          id: ap-3770
      author: Jílková, Lenka; Hlinčík, Tomáš; Ciahotný, Karel
       title: DETERMINATION OF WATER CONTENT IN PYROLYTIC TARS USING COULOMETRIC KARL-FISHER TITRATION
        date: 2017-02-28
       words: 4150
      flesch: 58
     summary: [19] Hadaruga, D. I.; et al. Differentiation of rye and wheat flour as well as mixtures by using the kinetics of Karl Fischer water titration. Nano-encapsulation competitiveness of omega-3 fatty acids and correlations of thermal analysis and Karl Fischer water titration for European anchovy (Engraulis encrasicolus L.) oil/b-cyclodextrin complexes.
    keywords: anal; analysis; biomass; brown; cell; chem; coal; compounds; content; content determination; coulometric; determination; doi:10.1016; figure; fischer; fischer titration; food; g−1; iodine; karl; karl fischer; liquid; method; oil; organic; oven; phase; pyrolysis; pyrolytic; reaction; results; sample; solution; standard; suitable; tar; tars; temperature; titration; volumetric; water; water content; −−→
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        item: #728 of 1243
          id: ap-378
      author: Procházka, P. P.; Kugblenu, M. G.
       title: Application of Discrete Element Methods to the Problem of Rock Bumps
        date: 2002-01-04
       words: 4204
      flesch: 67
     summary: A summary is published in [7], where it is pointed out that at failure rocks with a wide range of strengths approximately satisfy the fol- lowing equation: � � � � � � � � � � � � � A 1 2 , where � and � are the shear and normal stresses along the failure plane, �� is the rock tensile strength (note that tension is positive), 2� is a universal constant equal to 0.684 ± correctional term, and A is a material constant. Keywords: free hexagonal element method, statical PFC, localized damage, occurrence of cracking and bumps during mining or tunneling.
    keywords: acta; bumps; case; coal; conditions; czech; discrete; element; emission; examples; experimental; face; fig; force; free; gas; hexagonal; house; http://ctn.cvut.cz/ap/; influence; kpa; loading; material; method; mining; model; movements; mpa; numerical; opening; particles; pfc; polytechnica; pressure; problems; publishing; results; rock; scale; seam; shear; stability; static; strength; technical; tensile; university; vol
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        item: #729 of 1243
          id: ap-3782
      author: Oyedoh, Eghe A.; Ekwonu, Michael C.
       title: EXPERIMENTAL INVESTIGATION ON CHROMIUM(VI) REMOVAL FROM AQUEOUS SOLUTION USING ACTIVATED CARBON RESORCINOL FORMALDEHYDE XEROGELS
        date: 2016-10-31
       words: 3742
      flesch: 54
     summary: Other functional groups may also be involved in metal ions adsorption. Adsorption isotherms Experimental data obtained from the batch tests were analyzed using the Langmuir and Freundlich isotherms to determine the isotherm model that described the experimental data more accurately.
    keywords: acrf; acta; adsorbent; adsorption; aqueous; carbon; chemical; chromium; chromium(vi; concentration; constant; contact; cr(vi; data; diffusion; doi:10.1016; effect; engineering; equilibrium; experimental; figure; fit; formaldehyde; freundlich; initial; ions; isotherm; journal; kinetics; langmuir; maximum; metal; min; order; parameters; ppm; process; pseudo; removal; resorcinol; results; second; solution; studies; surface; temperature; thermodynamics; time; value; water; xerogels
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        item: #730 of 1243
          id: ap-3794
      author: Masáková, Zuzana; Pelantová, Edita; Starosta, Štěpán
       title: ITINERARIES INDUCED BY EXCHANGE OF THREE INTERVALS
        date: 2016-12-31
       words: 8095
      flesch: 84
     summary: Codings of rotations are advantageously interpreted in the language of interval exchange. These cases belong to the most interesting from the combinatorial point of view, since they provide infor- mation about return words to factors, and about the morphisms preserving three interval exchange words.
    keywords: 3iet; cases; condition; definition; degenerate; distance; exchange; factors; gap; induced; infinite; interval; itineraries; language; lemma; lengths; non; pelantová; points; proof; proposition; r(x; return; set; substitution; theorem; times; transformation; words; 
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        item: #731 of 1243
          id: ap-380
      author: Fořt, I.; Jirout, T.; Sperling, R.; Jambere, S.; Rieger, F.
       title: Study of Pumping Capacity of Pitched Blade Impellers
        date: 2002-01-04
       words: 3222
      flesch: 61
     summary: Three and six blade pitched blade impellers (the pitch angle varied within the interval � � �24°; 45°�) of impeller / vessel diameter ratio D/T � 0.36, as well as a three blade pitched blade impeller with folded blades of the same diameter, were tested. The laser (5 – W Ar ion, manufactured by Spectra Physics, © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 69 Acta Polytechnica Vol. 42 No. 4/2002 a/ b/ Fig. 2: Sketch of pitched blade impellers with three or six blades – Czech Standard CVS 691020 (a/ nB � 3: � � 24°, 35°, 45°, b/ nB � 6: � � 45°, h/D � 0.2) Fig. 3: Sketch of a pitched blade impeller with folded blades – Czech Standard CVS 691010 (nB � 3, s/D � 1.5, � � 67°, � � 25°, � � 48°, h/D � 0.2) Fig. 4: Layout of a laser Doppler anemometer with forward scatter mode USA) and optics were mounted on a bench which has a two-dimensional traversing mechanism.
    keywords: agitated; axial; blade; calculated; capacity; clearance; czech; diameter; dimensionless; discharge; efficiency; energetic; fig; flat; flow; hydraulic; impeller; liquid; mean; measured; number; power; pumping; quantity; radial; region; system; table; velocity; vessel; vol
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        item: #732 of 1243
          id: ap-3803
      author: Vannucchi de Camargo, Felipe; Marcos Guilherme, Carlos Eduardo; Fragassa, Cristiano; Pavlovic, Ana
       title: CYCLIC STRESS ANALYSIS OF POLYESTER, ARAMID, POLYETHYLENE AND LIQUID CRYSTAL POLYMER YARNS
        date: 2016-10-31
       words: 3589
      flesch: 54
     summary: Always supported by proper standard test- ing regulations for the scale chosen (i.e. fibre, strand, sub cable), the discovery of a constant or function that defines the change in fatigue resistance through the number of yarns associated on it, would be a great gain in applying the research to industry needs, once mathematical extrapolations could be constituted to predict, in the best case scenario, the behaviour of an actual gross rope. The loading rate was imposed as a percent- age of the specimen length: 50 % for AR (250 mm/min) and 100 % for other materials (500 mm/min)
    keywords: acta; amplitude; analysis; average; behaviour; breaking; conditions; creep; cycles; cyclic; density; endurance; experimental; fatigue; fibres; figure; fragassa; high; impact; lcp; linear; loading; materials; mechanical; mooring; number; oil; order; pet; polyester; polymer; polytechnica; preliminary; rate; resistance; results; ropes; scale; specimens; stress; synthetic; table; tensile; testing; tests; tex; trend; wear; work; yarns; ybl
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        item: #733 of 1243
          id: ap-3818
      author: Mendonça da Silveira, Francisco Eugenio
       title: TEARING MODES GROWTH RATE AMPLIFICATION DUE TO FINITE CURRENT RELAXATION
        date: 2017-02-28
       words: 4886
      flesch: 73
     summary: Therefore, magnetic field lines can break-up into thin filaments. [31] B. Coppi, J. M. Greene, J. L. Johnson.
    keywords: asymptotic; constant; current; density; dξ2; effects; electric; electron; equilibrium; field; finite; fluid; form; fusion; growth; ideal; inertial; islands; law; layer; limit; lines; magnetic; modes; number; perturbative; perturbed; phys; plasma; rate; relaxation; resistive; resistivity; scales; standard; theory; time; wavelengths; ψ(x
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        item: #734 of 1243
          id: ap-3885
      author: Kytyr, Daniel; Krčmářová, Nela; Šleichrt, Jan; Fíla, Tomáš; Koudelka, Petr; Gantar, Ana; Novak, Sasa
       title: DEFORMATION RESPONSE OF GELLAN GUM BASED BONE SCAFFOLD SUBJECTED TO UNIAXIAL QUASI-STATIC LOADING
        date: 2017-02-28
       words: 5295
      flesch: 66
     summary: Moreover, as the mechanical properties are significantly influenced by testing conditions the experiment was performed using dry samples and also using samples immersed in the simulated body fluid. Dimensions of pure GG samples for the compression test under dry conditions.
    keywords: acta; artificial; average; bag; bone; calculated; compression; compression test; conditions; content; curves; deformation; dimensions; dmax; dmin; dry; dry conditions; e s; elastic; engineering; experimental; figure; force; gellan; gg samples; gg00; gg50; gg70; gum; kpa; loading; low; material; measurement; mechanical; particles; polytechnica; properties; pure; pure gg; response; s s; sample e; samples; scaffold; strain; stress; stresses; table; tensile; tensile test; test; testing; tissue; wet; wet conditions; wt%; wt% bag; yield
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        item: #735 of 1243
          id: ap-3893
      author: Veselý, Jan
       title: NUMERICAL MODELLING OF THE SOIL BEHAVIOUR BY USING NEWLY DEVELOPED ADVANCED MATERIAL MODEL
        date: 2017-02-28
       words: 6285
      flesch: 63
     summary: This paper describes a theoretical background, implementation and validation of the newly developed Jardine plastic hardening-softening model (JPHS model), which can be used for numerical modelling of the soils behaviour. JPHS model — flow chart.
    keywords: acta; analysis; angle; behaviour; calculated; cam; cap; clay; coefficient; compression; concrete; conditions; coulomb; criterion; data; deviatoric; drucker; engineering; excavation; failure; figure; friction; function; geotechnical; ground; hardening; input; jardine; jphs; jphs model; kpa; laboratory; linear; lining; material; model; modelling; modulus; mohr; n+1; non; numerical; parameters; plastic; polytechnica; prager; pressure; real; region; results; settlement; sin; small; softening; soil; stiffness; strain; stress; surface; table; test; triaxial; tunnel; value; yield; young; φ′peak
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        item: #736 of 1243
          id: ap-3907
      author: Çelik, İsmet; Güneş, Ebubekir Can
       title: USE OF DISC SPRINGS IN A PELLET FUEL MACHINE FOR PRESSURE REGULATION AND PREVENTION OF DAMAGE
        date: 2017-05-02
       words: 4888
      flesch: 60
     summary: Keywords: biomass pellet; pellet machine; disc spring; Almen–Laszlo; FEA; pelletizing pressure. doi:0.1016/j.fuel.2009.03.015 [6] Mani, S., Tabil, L.G., Sokhansanj, S.: Effects of compressive force, particle size and moisture content on mechanical properties of biomass pellets from grasses, Biomass and Bioenergy, 30, 2006, p. 648–654.
    keywords: acta; addition; axis; biomass; calculated; conditions; cone; cylindrical; deformation; density; diameter; die; disc; disc springs; doi:10.1016; durability; effective; effects; energy; fea; feedstock; figure; force; friction; fuel; hertzian; high; increases; inner; lignin; machine; method; moisture; mpa; parallel; parameters; particle; pellet; pelletized; pelletizing; polytechnica; presses; pressure; process; production; quality; ratio; results; roller; sawdust; size; springs; straw; stress; study; surface; system; table; temperature; use; values
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        item: #737 of 1243
          id: ap-3908
      author: Kačur, Ján; Kostúr, Karol
       title: APPROACHES TO THE GAS CONTROL IN UCG
        date: 2017-06-30
       words: 13091
      flesch: 55
     summary: The control variable is the power frequency of the motor calculated by control system according to equation (33) and sent as an analog voltage signal (0–10 VDC) to the frequency inverter (see Figure 20). The outcome is a control system for the stabilization of oxidant to the gasifier, control system for the stabilization of the temperature in the gasifier and control system for the stabilization of the oxygen concentration in the produced gas.
    keywords: 3/2017; 4–20; acta; adaptation; air; air flow; algorithm; analysis; approaches; beat; bed; behaviour; calculated; calculation; calorific; calorific value; case; change; co2; coal; coal gasification; combustion; components; concentration; conditions; continuous; control; control loop; control system; control variable; controller; controller parameters; critical; dead; digital; discrete; discrete controller; e(k; energy; equation; error; exhaust; experimental; fan; feedback; figure; flow; following; form; frequency; function; gain; gas control; gases; gasification; gasification process; gasifier; higher; i.e.; identification; important; increases; injected; international; ján; karol; kačur; kostúr; level; loop; measured; measurement; method; mining; model; monitoring; new; number; opening; optimal; order; output; oxygen; parameters; percentage; period; pi controller; pid; plc; point; polytechnica; power; pressure; pressure control; process; process control; quality; radon; range; rate; reactions; reactor; regulation; sampling; seam; servo; set; stabilization; stabilizing; step; structure; suitable; syngas; system; temperature; temperature stabilization; time; transfer; u(k; ucg; ucg control; ucg process; underground; underground coal; use; value; variable; vol; y(k; zone
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        item: #738 of 1243
          id: ap-394
      author: Ficker, T.
       title: A Short Note on Non-isothermal Diffusion Models
        date: 2003-01-01
       words: 579
      flesch: 57
     summary: Naturally, throughout the year the structure is mostly exposed to non-isothermal states but, especially in the summer season, it may be subjected to a purely isothermal state. The DIAL and DRAL models provide the basic relations solely for non-isothermal conditions, i.e., they contain different tem- peratures ?
    keywords: acta; asymptotic; building; dial; dral; ficker; isothermal; models; non; polytechnica; relations; state; structure
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        item: #739 of 1243
          id: ap-3940
      author: Toman, Rastislav; Polóni, Marián; Chríbik, Andrej
       title: PRELIMINARY STUDY ON COMBUSTION AND OVERALL PARAMETERS OF SYNGAS FUEL MIXTURES FOR SPARK IGNITION COMBUSTION ENGINE
        date: 2017-02-28
       words: 7044
      flesch: 54
     summary: Other possibility is to employ the advanced predic- tive combustion models to model and study the ICE combustion process for different fuel mixtures [12]. Vibe curves and significant burning points for different fuel mixtures at constant spark advance and engine speed.
    keywords: acta; alternative; analysis; angle; burn; ca50; chríbik; combustion; combustion analysis; combustion engine; combustion model; comparison; composition; cycle; cylinder; data; different; duration; efficiency; empirical; engine; engine speed; error; experimental; figure; fuel; fuel mixtures; gaseous; group; hydrogen; ignition; inert; lgw; lhv; load; maximum; measured; measurement; mixtures; model; multiplier; natural; numerical; operating; optimal; optimization; overall; paper; parameters; performance; polytechnica; polóni; power; preliminary; pressure; process; rate; research; results; rpm; sae; scale; set; sg18; sg21; sg22; sg23; sg31; sg6; sgs; simulation; spark; speed; study; syngas; syngas mixtures; table; technical; torque; use; values; vibe; vol%; woschni
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        item: #740 of 1243
          id: ap-398
      author: Palamarchuk, D.; Zoriy, M.; Gurovič, J.; Černý, F.; Konvičková, S.; Hüttel, I.
       title: DLC Films Deposited by the DC PACVD Method
        date: 2003-01-01
       words: 979
      flesch: 62
     summary: The microhardness of the substrates and substrates with DLC films was measured using a Leica DM Inverter Research Mi..or.op for Materials Tesiing' The measurement results of microhardness for DLC layers prepared with the diflerent values of bias voltage are shown in Fig' This difference is shown in !ig' 3' 3.9.10-2 Torr3.9' l0-2 TorrInitial vacuum 7.1.10-l Torr7.1.10-l TorrPressure of CH, Bias current -400V+-900V-400V+-900V Thickness of DLC layer 27 Acta Polytechnica Vol.
    keywords: adhesion; bias; coatings; czech; deposition; dlc; fig; films; ing; layers; mail; method; microhardness; pacvd; phone; phys; plasma; poor; silicon; steel; substrates; vacuum; voltage
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        item: #741 of 1243
          id: ap-3980
      author: Sinuvasan, R; Krishnakumar, K; Tamizhmani, K M; Leach, PGL
       title: FURTHER GENERALISATIONS OF THE KUMMER-SCHWARZ EQUATION: ALGEBRAIC AND SINGULARITY PROPERTIES
        date: 2017-12-30
       words: 2338
      flesch: 63
     summary: We reported the symmetries, singularity properties and solutions for the members of the family. In [12] we delineated the properties of the class of equations (n−1)y(n−2)y(n)−n(y(n−1))2 = 0, n = 2, 3, . . .
    keywords: algebra; analysis; class; dimensional; equation; general; integrability; kummer; lie; order; properties; resonances; schwarz; singularity; symmetries; symmetry; terms; university; values; ∂ ∂x; ∂ ∂y
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        item: #742 of 1243
          id: ap-3988
      author: Sunu, Putu Wijaya; Rasta, I Made
       title: HEAT TRANSFER ENHANCEMENT AND PRESSURE DROP OF GROOVED ANNULUS OF DOUBLE PIPE HEAT EXCHANGER
        date: 2017-05-02
       words: 3277
      flesch: 67
     summary: Keywords: heat transfer; friction factor; circumferential rectangular grooves; annulus. The experiment apparatus was designed to determine the pressure drop, heat transfer and flow visualization.
    keywords: acta; annulus; capacity; characteristics; cold; diameter; double; double pipe; drop; effectiveness; enhancement; exchanger; experimental; factor; figure; flow; fluid; friction; grooves; heat; heat exchanger; heat transfer; hot; increase; investigation; mass; ntu; number; pipe; pipe heat; polytechnica; pressure; pressure drop; rate; ratio; room; smooth; sunu; surface; temperature; thermal; transfer; tube; turbulent
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        item: #743 of 1243
          id: ap-3989
      author: Beno, Matej; Patzák, Bořek
       title: FICTITIOUS DOMAIN METHOD FOR NUMERICAL SIMULATION OF INCOMPRESSIBLE VISCOUS FLOW AROUND RIGID BODIES
        date: 2017-09-01
       words: 3600
      flesch: 61
     summary: Keywords: finite element method; computational fluid dynamics; fictitious domain method; Lagrange multipliers; flow around obstacles. This article aims at reducing these compu- tational costs by avoiding the need of explicit repre- sentation of individual reinforcing bars by adopting an approach based on fictitious domain method to solve the problem of Newtonian incompressible flow with rigid body obstacles on regular, structured computa- tional grid, where the individual reinforcing bars can be inserted arbitrarily and independently of the un- derlying mesh.
    keywords: acta; body; boundary; computational; concrete; condition; constraints; different; discretization; domain; element; equations; fictitious; figure; finite; flow; fluid; incompressible; lagrange; method; multipliers; numerical; obstacles; operator; particle; points; problem; results; rigid; rings; sampling; selection; simulation; splitting; strategies; time; velocity; vol
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        item: #744 of 1243
          id: ap-4038
      author: Kolařík, Filip; Patzák, Bořek
       title: IMPLEMENTATION OF 3D VOF TRACKING ALGORITHM BASED ON BINARY SPACE-PARTITIONING
        date: 2017-05-02
       words: 7221
      flesch: 64
     summary: The interface is modeled using the Volume-Of-Fluid method, where the advection of volume fractions is treated by a purely geometrical method. The idea is to form a Taylor series expansion of volume fraction fT
    keywords: algorithm; binary; bsp; case; cell; child; coincident; column; computational; constant; convex; cube; determined; domain; element; end; faces; field; figure; finite; flow; fluid; fraction; free; function; grid; implementation; initial; interface; intersection; journal; lagrangian; lies; martin; material; mesh; method; moyce; negative; nodes; normal; numerical; order; original; partitioning; patzák; plane; polyhedron; position; positive; problem; procedure; reference; results; rotation; second; segment; set; shape; space; splitting; step; sub; surface; time; tracking; translation; tree; type; value; velocity; vof; volume; water
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        item: #745 of 1243
          id: ap-4040
      author: Vokurka, Karel
       title: EXPERIMENTAL DETERMINATION OF TEMPERATURES IN SPARK GENERATED BUBBLES OSCILLATING IN WATER
        date: 2017-05-02
       words: 5977
      flesch: 63
     summary: The individual frames in Figure 2 can be traced to the corresponding points on the plot of bubble radius vs. time, given in Figure 3. It is found that the maximum surface temperatures of the plasma core range 4300–8700 K. Keywords: spark-generated bubbles; temperatures in bubbles; bubble oscillations.
    keywords: bubble; bubble oscillation; contraction; core; data; determination; determined; discharge; estimate; experimental; figure; frames; high; intensity; interior; interval; laser; light; liquid; luminescence; maximum; optical; oscillation; phase; phys; plasma; plasma core; pp1; pressure; pulse; pzp1; radiation; radius; range; record; results; rm1; second; set; size; spark; sparker; surface; temperature; time; u1(t; values; variation; vokurka; voltage; wall; water; work; zm1
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        item: #746 of 1243
          id: ap-4068
      author: Štancl, Jaromír; Skočilas, Jan; Landfeld, Aleš; Žitný, Rudolf; Houška, Milan
       title: ELECTRICAL AND THERMODYNAMIC PROPERTIES OF A COLLAGEN SOLUTION
        date: 2017-06-30
       words: 3575
      flesch: 51
     summary: The transition region of collagen to gelatin has been observed from the measured temperature dependence of specific electrical conductivity, and has been confirmed by specific heat capacity measurements by a differential scanning calorimetry. The results of our experiments show that specific electrical conductivity of collagen solution is strongly dependent on temperature.
    keywords: acta; capacity; collagen; collagen solution; conductivity; c−1; dependence; doi:10.1016; dsc; electrical; electrical conductivity; electrodes; experimental; field; food; frequency; gelatin; heat; heat capacity; kg−1; material; measurements; meat; model; m−1; observed; ohmic; parameters; properties; range; region; results; sample; sec; significant; solution; specific; specific electrical; specific heat; table; temperature; tested; thermal; thermal conductivity; ° c
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        item: #747 of 1243
          id: ap-4073
      author: Bradáč, Josef; Moravec, Jaromír
       title: THE IMPACT OF SELECTED PROCESSES AND TECHNOLOGICAL PARAMETERS ON THE GEOMETRY OF THE WELD POOL WHEN WELDING IN SHIELS GAS ATMOSPHERE
        date: 2017-05-02
       words: 5020
      flesch: 58
     summary: Preheating temperatures were chosen as 100, 200 and 300 °C with welding speed of 0.2–0.5 m/min and the welding cur- rent of 140 A. Higher welding speeds were not used because of the small amount of filler material melting. This is valid for the whole speed range of welding speeds, see Figure 13.
    keywords: acta; arc; base; calculations; case; chemical; current; density; depth; determined; diameter; different; effect; experiments; figure; fillet; gas; geometric; geometry; heat; high; higher; important; influence; input; material; melting; model; numerical; parameters; penetration; polytechnica; pool; possible; preheating; process; process parameters; processes; properties; results; selected; shape; simulation; size; source; speed; steel; surface; technological; temperature; transfer; type; values; variables; weld pool; welding; welding current; welding speed; wire; wire diameter
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        item: #748 of 1243
          id: ap-4087
      author: Fořt, Jan; Beran, Pavel; Konvalinka, Petr; Pavlík, Zbyšek; Černý, Robert
       title: EVALUATION OF THE APPLICATION OF A THERMAL INSULATION SYSTEM: IN-SITU COMPARISSON OF SEASONAL AND DAILY CLIMATIC FLUCTUATIONS
        date: 2017-06-30
       words: 4534
      flesch: 43
     summary: Indoor ther- mal comfort can be perceived as the one of the most im- portant factors and achievement of the indoor thermal comfort for building occupants represents a substantial objective, which should be satisfied in order to provide appropriate working and health conditions [14]. Importance of the maintenance of ambient air is connected not only with comfort of building occupants, but also with health issues.
    keywords: acta; air; application; applied; assessment; autumn; building; climatic; comfort; comparison; conditions; consumption; czech; daily; data; days; devices; doi:10.1016; effect; efficiency; energy; envelope; environment; evaluation; exterior; figure; fluctuations; health; heating; humidity; indoor; insulation; layer; level; low; maintenance; monitoring; occupants; order; outdated; performance; period; polytechnica; profiles; quality; reconstruction; relative; relative humidity; republic; seasonal; sensors; stability; state; studied; substantial; summer; system; temperature; thermal; thermal insulation; winter; year
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        item: #749 of 1243
          id: ap-4131
      author: Sudibyo, Hanifrahmawan; Shabrina, Zata Lini; Wondah, Hartika Rafih; Hastuti, Retno Tri; Purnomo, Chandra Wahyu; Budhijanto, Wiratni
       title: ANAEROBIC DIGESTION OF LANDFILL LEACHATE WITH NATURAL ZEOLITE AND SUGARCANE BAGASSE FLY ASH AS THE MICROBIAL IMMOBILIZATION MEDIA IN PACKED BED REACTOR
        date: 2018-02-28
       words: 7094
      flesch: 59
     summary: © Czech Technical University in Prague, 2018 available online at http://ojs.cvut.cz/ojs/index.php/ap ANAEROBIC DIGESTION OF LANDFILL LEACHATE WITH NATURAL ZEOLITE AND SUGARCANE BAGASSE FLY ASH AS THE MICROBIAL IMMOBILIZATION MEDIA IN PACKED BED REACTOR Hanifrahmawan Sudibyoa, b, Zata Lini Shabrinaa, Hartika Rafih Wondaha, Retno Tri Hastutia, Lenny Halima, Chandra Wahyu Purnomoa, Wiratni Budhijantoa, b, ∗ a Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia b Center for Energy Studies, Universitas Gadjah Mada, Jalan Bhinneka Tunggal Ika Sekip UGM K-1A, Yogyakarta 55281, Indonesia ∗ corresponding author: wiratni@ugm.ac.id Abstract. Keywords: landfill leachate, natural zeolite, sugarcane bagasse fly ash, growth kinetics, Contois, Haldane.
    keywords: acidogenesis; acidogenic; acta; anaerobic; anaerobic digestion; analysis; bagasse; bed; bfa; biogas; cell; ch4; coefficient; concentration; constants; content; contois; correlation; cumulative; cvfa; data; days; different; digester; digestion; doi:10.1016; experimental; figure; g scod; greater; growth; haldane; height; high; immobilization; immobilization media; immobilized; increase; indonesia; kinetics; landfill; leachate; media; methane; methanogenesis; methanogenic; microbes; microbial; model; natural; natural zeolite; number; order; organic; performance; phase; polytechnica; production; rate; result; scenario; scod; second; solid; sse; study; substrate; sugarcane; table; treatment; value; vfa; volume; waste; wastewater; work; ych4; yx1; yx2; zeolite
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        item: #750 of 1243
          id: ap-4152
      author: Kovács, György
       title: OPTIMIZATION METHOD AND SOFTWARE FOR FUEL COST REDUCTION IN CASE OF ROAD TRANSPORT ACTIVITY
        date: 2017-06-30
       words: 4840
      flesch: 57
     summary: The ratio of the road transport in Europe is 78 % of the total freight volume [3], and because the fuel cost is the highest cost among the cost components of the transportation, every transport company puts a great emphasis on optimizing road transport activities and reducing transport costs. The optimal operation of transport routes can be attained in the following ways: • modernization of the vehicle fleet, • integration of multiple transport tasks into a one transport trip, • application of multimodal transport modes, where road, railway, and water transportation modes are integrated, • maximal utilization of vehicles, • application of IT tools in logistics improves the efficiency of transport tasks, and ensures better monitoring and tracking, • reduction of fuel costs of the transport tasks: refill- ing the optimal amount of fuel at the optimal petrol station.
    keywords: actual; actual fuel; case; communication; companies; company; cost; decision; different; driver; figure; fuel; fuel consumption; fuel cost; fuel price; loading; logistics; method; new; optimal; optimal petrol; optimization; petrol; petrol station; reduction; refilled fuel; refuelling; research; result; road; road transport; route; software; station; study; total; total cost; transport; transport cost; transport trip; transport way; transportation; trips; useful; vehicle; volume; way
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        item: #751 of 1243
          id: ap-4157
      author: Kačalová, Mária; Pavlenko, Slavko
       title: STRENGHT AND DYNAMIC ANALYSIS OF A STRUCTURAL NODE LIMITING THE MULTI-OUTPUT GEAR MECHANISM
        date: 2017-10-31
       words: 2070
      flesch: 60
     summary: The gear mechanism achieves high gear ratios. Keywords: double-output gear mechanism; gears; strength and dynamic analysis.
    keywords: acta; analysis; bending; contact; design; double; dynamic; element; engineering; fatigue; figure; finite; gear; gear mechanism; haľko; high; issn; load; manufacturing; materials; mechanism; method; model; mpa; multi; output; output gear; output stage; pavlenko; pinion; results; safety; shaft; stage; strength; stress; table; technical
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        item: #752 of 1243
          id: ap-4160
      author: Pazderka, Jiří; Hájková, Eva; Jiránek, Martin
       title: UNDERGROUND AIR DUCT TO CONTROL RISING MOISTURE IN HISTORIC BUILDINGS: IMPROVED DESIGN AND ITS DRYING EFFICIENCY
        date: 2017-10-31
       words: 4505
      flesch: 57
     summary: Air ducts, which are situated in the ground, are most often designed as a masonry structure in combination with a traditional concrete slab and concrete screed (Fig. 2). Air duct (concrete blocks) installed into a historic masonry building.
    keywords: acta; air; air duct; air flow; blocks; building; cavity; concrete; content; days; design; doi:10.1016; duct; durability; experimental; fan; figure; flow; heat; historic; humidity; influence; journal; laboratory; level; masonry; materials; measured; measurement; measuring; model; moisture; months; numerical; pazderka; points; polytechnica; properties; reference; remediation; results; sample; simulation; structures; study; surface; system; test; underground; underground air; values; ventilation; wall; water
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        item: #753 of 1243
          id: ap-4163
      author: Yusuf, Taofeek Ayotunde
       title: CHARACTERIZATION OF SELECTED PROPERTIES OF COMPOSITES OF WASTE PAPER WITH UNTREATED BAMBOO STEM FIBRE AND RICE HUSK
        date: 2017-09-01
       words: 6959
      flesch: 57
     summary: Keywords: biocomposite properties; waste paper; bamboo stem fibre; rice husk. Bamboo stem fibre is ranked next to wood with world production of 99.1 and 0.56 % in 2004 respec- tively [6].
    keywords: /min; absorption; agriculture; applications; bamboo; bamboo stem; binder; bsf; cassava; cellulose; chemical; cm3; composites; composition; compression; content; density; engineering; fibres; figure; higher; husk; immersion; impact; lignin; lower; machine; makurdi; materials; matrix; mechanical; mould; natural; paper; percentage; plant; production; properties; rate; ratio; result; rice; rice husk; samples; significant; specific; starch; stem; strength; sun; swelling; table; testing; thickness; time; university; volume; waste; waste paper; water; wax; weight; wt%
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        item: #754 of 1243
          id: ap-4179
      author: Strnadová, Gabriela; Hanuš, Vlastimil; Kahoun, David; Semerák, Petr; Tříska, Jan
       title: RETRACTED: POSSIBILITY OF MONITORING OF PAHs DISTRIBUTION IN THE VERTICAL PROFILE AT THE BACKGROUND METEOROLOGICAL STATION KREŠÍN
        date: 2017-09-01
       words: 13861
      flesch: 67
     summary: Concentration of individual PAHs on the ground, filters from mercury analyser (ng/m3) CONCLUSION Measurements of PAHs concentrations from December 17, 2014 to December 9, 2015 at Křešín near Pacov meteorological background station have produced unique results. Conclusion Measurements of PAHs concentrations from December 17, 2014 to December 9, 2015 at Křešín near Pacov me- teorological background station have produced unique results.
    keywords: acenaphthylene; acetone; acta; air; aluminium; analyser; analysis; area; aromatic; atmospheric; authors; background; bap; benzo[a]pyrene; benzo[b]fluoranthene; building; cd]pyrene; chrysene; collection; concentration; continuous; czech; december; decrease; described; different; distribution; doi:10.1016; e n; environment; extraction; figure; filters; fluoranthene; foil; following; glass; glassware; group; h e; health; heavier; height; hexane; higher; highest; hydrocarbons; immission; individual; individual pahs; institute; křešín; l o; laboratory; limit; long; loq; lowest; m height; matter; measurements; mercury; meteorological; method; mixture; molecular; monitoring; o n; o q; outdoor; ozone; pacov; pahs; pairs; particles; particulate; period; pollutants; pollution; polycyclic; polytechnica; possibility; profile; ptfe; publications; republic; research; results; ring pahs; rings; samples; sampling; science; season; solvent; station; study; substances; sum; summer; table; temperature; time; total; tower; transport; unit; urban; use; value; vertical; water; winter
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        item: #755 of 1243
          id: ap-4182
      author: Wagner, Marcel; Dangel, Felix; Cartarius, Holger; Main, Jörg; Wunner, Günter
       title: NUMERICAL CALCULATION OF THE COMPLEX BERRY PHASE IN NON-HERMITIAN SYSTEMS
        date: 2017-12-30
       words: 4993
      flesch: 66
     summary: In this framework we develop a general numerical gauge smoothing procedure to calculate complex Berry phases from the biorthogonal basis of the system’s non-Hermitian Hamiltonian. Keywords: complex Berry phase; PT symmetry; gauge smoothing.
    keywords: -symmetric; acta; analytical; arbitrary; basepoint; basis; berry; berry phase; biorthogonal; brillouin; calculation; cartarius; case; complex; component; difference; dimensional; doi:10.1103; eigenstates; eigenvectors; fermions; figure; gauge; global; hamiltonian; hermitian; lattice; left; lett; loop; majorana; mechanics; model; non; number; numerical; parameter; phase; phys; point; polytechnica; potential; procedure; pt -symmetric; quantum; real; rev; right; section; smoothing; space; ssh; states; step; symmetry; system; topological; zak; zone
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        item: #756 of 1243
          id: ap-4185
      author: Strunina, Svitlana; Hozman, Jiri; Ostadal, Petr
       title: RELATION BETWEEN LEFT VENTRICULAR UNLOADING DURING ECMO AND DRAINAGE CATHETER SIZE ASSESSED BY MATHEMATICAL MODELING
        date: 2017-10-31
       words: 3361
      flesch: 58
     summary: The impact of various catheter sizes (from 5 Fr to 10 Fr) and extracorporeal blood flow values (from 1 L/min to 5 L/min) were investigated. Materials and methods In this study, a computer model was used to assess the LV unloading capacities of various diameters of drainage catheter inserted in the LV and EBF values.
    keywords: arterial; blood; cardiac; catheter; circuit; cycle; decompression; drainage; drainage catheter; ebf; ecmo; end; extracorporeal; figure; flow; language; left; membrane; min; model; modelica; modeling; oxygenation; pressure; pump; rate; simulation; size; study; system; systolic; table; therapy; time; unloading; value; ventricle; ventricular; volume; withdrawal
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        item: #757 of 1243
          id: ap-426
      author: Ficker, T.; Macur, J.
       title: A Note on Normalised Distributions of DC Partial Microdischarges
        date: 2003-01-02
       words: 1098
      flesch: 57
     summary: (l3) Analysing the Pareto unnormalised (2) and normalised (II) distributions in bilogarithmic co-ordinates lnw p =Jnc-ulnU => y=k-ux, (14) lnw; =lnc-lnSp -ulnU => y' =k' -ux, (15) k'=k-lnSp, (16) similar conclusions as for exponential distribution can be drawn: in bilogarithmic systems the normalisation proce- dure changes only the vertical position of the graph of the Pareto distribution and does not influence its functional char- acter (slope or asymmetricity). = 0.0685 - 0.0895x (9) which enables us straightforwardly to determine the corre- sponding normalised exponential distribution ,i1r; = o.oasr '.-o o8e5r ittt s;-r
    keywords: distribution; exponential; ficker; function; interval; normalisation; normalised; ordinates; pareto; partial; probability; procedure; pulses; semilogarithmic; time; vol
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        item: #758 of 1243
          id: ap-4280
      author: Štorch, Vít; Nožička, Jiří
       title: CONTRA-ROTATING PROPELLER AERODYNAMICS SOLVED BY A 3D PANEL METHOD WITH COUPLED BOUNDARY LAYER
        date: 2017-10-31
       words: 7826
      flesch: 61
     summary: Verification using single propeller wind tunnel results Based on the results obtained during recent series of measurements of model propellers in a wind tun- nel Wake behind single propeller.
    keywords: 3d panel; acta; aerodynamics; airfoil; analysis; angle; b.l; blade; boundary; boundary layer; calculation; coefficient; computational; conditions; contra; dimensional; displacement; distance; downstream; edge; efficiency; equations; experiment; figure; flow; fom; force; free; frequency; induced; inflow; interaction; inviscid; layer; matrix; merit; mesh; method; model; new; nožička; number; numerical; p.m.; panel; panel method; performance; point; polytechnica; power; propeller; ratio; region; replacement; response; results; rotating; rotation; sensitivity; separation; shape; single; solution; source; speed; static; step; surface; system; s−1; thickness; thrust; time; trailing; transition; upstream; velocity; verification; viscous; vortex; wake; štorch; −0.1; −0.2
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        item: #759 of 1243
          id: ap-4339
      author: Fernández, Francisco Marcelo; Garcia, Javier
       title: HIGHLY ACCURATE CALCULATION OF THE REAL AND COMPLEX EIGENVALUES OF ONE-DIMENSIONAL ANHARMONIC OSCILLATORS
        date: 2017-12-30
       words: 3212
      flesch: 59
     summary: In this section we also calculate several resonances supported by anharmonic oscillators that were not taken into account by those authors. 391 http://dx.doi.org/10.14311/AP.2017.57.0391 http://ojs.cvut.cz/ojs/index.php/ap Francisco Marcelo Fernández, Javier Garcia Acta Polytechnica We consider examples of resonances embedded in the continuous as well as in the discrete spectrum. − 2064531673055232E8 − 15362232560910336E7 + 158709729905344512E6 − 23752960275863896064E5 − 84068173973645402112E4 + 2318080070178601634304E3 − 6274577633554290840768E2 − 75410626140297229262472E + 655367638076442656931879), (11) respectively.
    keywords: accuracy; accurate; acta; anharmonic; calculation; case; complex; convergence; determinants; dimension; discrete; eigenvalues; equation; example; fernández; figure; gaudreau; lowest; method; oscillators; paper; phys; present; resonances; results; riccati; rpm; spectrum; state
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        item: #760 of 1243
          id: ap-440
      author: Repici, G. M.; Sorniotti, A.
       title: A General Approach to Study the Reliability of Complex Systems
        date: 2003-01-03
       words: 4248
      flesch: 52
     summary: Ke,worik: safety, systems reliability, fault tree anallsis (FTA), functional analysis (FA), handling, uhicle dynamic control (VDC) 1 Introduction Automobiles and land vehicles in general have seen a dramatic increase in complexity in recent years. 6 Conclusion and recommendations Our work has presented the preiiminary results and the overall methodological approach to the problem of designing reliability and safety in automotive systems since the very beginning of the developmenr.
    keywords: acta; aerospace; analysis; application; approach; architecture; automotive; avionics; beginning; board; car; complex; components; conditions; control; critical; data; design; development; different; driver; electrical; electronics; failure; fault; field; fig; fta; functions; general; handling; hardware; hydraulic; industry; information; integrating; level; logic; main; methodology; number; order; overall; particular; physical; point; polytechnica; possible; project; purpose; reliability; requirements; results; safety; scheme; software; specific; starting; step; structure; study; system; techniques; terms; time; tree; typical; values; vdc; vehicle; vol; way; work; years
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        item: #761 of 1243
          id: ap-4422
      author: Kutílek, Patrik; Škoda, David; Hýbl, Ján; Černý, Rudolf; Frynta, Daniel; Landová, Eva; Frýdlová, Petra; Kurali, Aniko; Doskočil, Radek; Křivánek, Václav
       title: PLATFORM WITH CAMERA SYSTEM FOR MEASUREMENT OF COMPENSATORY MOVEMENTS OF SMALL ANIMALS
        date: 2017-10-31
       words: 10481
      flesch: 57
     summary: Animal holder, 5. IMU, 6. Actuator unit, 7. Control and data collection unit, 8. PC controlling platform movement, 9. PC for data processing and determination of movement angles, 10. 2. Based on the information about the relative head angles in relation to the platform and angles of platform movement in Earth’s coordinate system (i.e. platform pitch angle) it is possible to calculate the head movement in relation to the Earth’s horizontal line [29], i.e. the head pitch angle, Fig. 9.
    keywords: actuator; algorithm; anatomical; angles; angular; animal; axes; axis; base; body; body segment; camera; camera system; case; centres; change; collection; colour; compensatory; conditions; control; coordinate; coordinate system; data; detection; determination; doi:10.1152; earth; example; figure; fps; frame; head; head movement; horizontal; imu; information; journal; line; main; markers; matlab; means; measurement; measuring; method; motors; movement; movement angles; orientation; perpendicular; pitch; pixels; plane; platform; platform movement; position; postural; previous; processing; radius; range; recording; relation; research; response; roll; rotation; segment; set; small; smaller; software; space; subsystem; system; tilt; time; tolerance; unit; user; values; vector; video; way
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        item: #762 of 1243
          id: ap-4423
      author: Schnabel, Jan; Cartarius, Holger; Main, Jörg; Wunner, Günter; Heiss, Walter Dieter
       title: SIMPLE MODELS OF THREE COUPLED PT -SYMMETRIC WAVE GUIDES ALLOWING FOR THIRD-ORDER EXCEPTIONAL POINTS
        date: 2017-12-30
       words: 5973
      flesch: 69
     summary: PT -symmetric wave guide setup allowing for the occurrence of an EP3. In addition it is demonstrated that continuous distributions of exceptional points, which render the discovery of the EP3 difficult, are not only a feature of extended wave guides but appear also in an idealised model of infinitely thin guides shaped by delta functions.
    keywords: -symmetric; acta; behaviour; branch; breaking; cartarius; complex; delta; doi:10.1103; eigenstates; eigenvalues; ep2s; ep3; equation; et al; exceptional; exceptional points; figure; form; functions; gain; guides; hamiltonian; heiss; hermitian; index; j phys; lett; loss; main; matrix; mechanics; middle; model; non; observation; optical; order; order exceptional; paper; parameter; permutation; phys; phys rev; physical; physics; points; pt -symmetric; quantum; real; refractive; rev; search; section; separation; setup; simple; space; state; symmetry; system; wave; wave guides; wunner
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        item: #763 of 1243
          id: ap-4428
      author: Olusunmade, Olusola Femi; Zechariah, Sunday; Yusuf, Taofeek Ayotunde
       title: CHARACTERIZATION OF RECYCLED LINEAR DENSITY POLYETHYLENE/IMPERATA CYLINDRICA PARTICULATE COMPOSITES
        date: 2018-07-02
       words: 4072
      flesch: 52
     summary: It showed that the RLDPE has a percentage elongation at break Figure 9: Elongation at break at varying IC particulate loading 0 Impact strength and hardness property in relation to IC particulate loading.
    keywords: absorption; acta; average; break; characterization; composite; cylindrica; decrease; density; different; elongation; fibre; figure; hardness; ic particulate; impact; imperata; increase; loading; low; materials; matrix; mechanical; modulus; mould; natural; particulate; particulate loading; percentage; physical; polyethylene; polymer; properties; recycled; rldpe; sachets; sem; specimens; strength; tensile; tensile strength; test; value; vol; waste; water; wt%; wt% particulate
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        item: #764 of 1243
          id: ap-4429
      author: Novotny, Jan; Machovska, Ilona
       title: PRIMARY PEAK RATIO CORRELATION TO THE MEASUREMENT ACCURACY OF PIV METHOD
        date: 2018-07-02
       words: 2652
      flesch: 55
     summary: Conclusions This work deals with the evaluation of a measure- ment accuracy based on the detection of the ratio of the primary and the secondary signal peak – the PPR and its correction, considering other parameters influencing the measurement accuracy, by using the Particle Image Velocimetry method – PIV. doi:10.1007/s00348-004-0902-3 [12] K. Okamoto, Nishio T., T. Saga and T. Kobayashi, “Standard Images for Particle Image Velocimetry,” Measurement Sicence and Technology, vol.
    keywords: accuracy; area; correlation; cross; dependency; displacement; error; figure; gradient; image; interrogation; mean; measured; measurement; method; metric; number; particle; peak; piv; plane; ppr; primary; ratio; synthetic; tests; total; value; velocimetry; velocity; vol
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        item: #765 of 1243
          id: ap-4434
      author: Mražíková, Anna; Velgosová, Oksana; Kavuličová, Jana; Krum, Stanislav; Málek, Jaroslav
       title: THE INFLUENCE OF SILVER NANOPARTICLES SYNTHESIS ON THEIR PROPERTIES
        date: 2018-12-31
       words: 3082
      flesch: 46
     summary: Application of green methods to replace physical and chemical methods for synthesis of silver nanoparticles (AgNPs) has become necessary not only from economic aspect but especially due to its significant impact on ecosystem. Keywords: silver nanoparticles; biosynthesis; chemical reduction; gelatin; anti-microbial activity.
    keywords: absorption; acta; activity; agar; agno3; agnps; algae; ambient; antibacterial; antimicrobial; biofilm; brown; cells; chemical; citrate; day; different; doi:10.1016; fig; formation; gelatin; green; kessleri; lett; long; materials; methods; nanoparticles; physical; polytechnica; prepared; presence; properties; reduction; results; sem; silver; silver nanoparticles; sizes; sodium; solution; stability; synthesis; technical; tem; temperature; term; university; vis
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        item: #766 of 1243
          id: ap-4476
      author: Yadav, Rajesh Kumar; Kumari, Nisha; Khare, Avinash; Mandal, Bhabani Prasad
       title: RATIONALLY EXTENDED SHAPE INVARIANT POTENTIALS IN ARBITRARY D DIMENSIONS ASSOCIATED WITH EXCEPTIONAL Xm POLYNOMIALS
        date: 2017-12-30
       words: 6404
      flesch: 78
     summary: − 1) − 2 ( 4B′2 − (2A′ + 1)2 ) (2B′ cosh r − 2A′ − 1)2 (59) is the rationally extended D dimensional GPT potential. (2B′ cosh r − 2A′ − 1)2 + A′2 (83) and V (+) eff,1(A ′,B′, ,r) = V (A ′−1,B′) GPT (r) + 2(2A′ − 1) (2B′ cosh r − 2A′ + 1) − 2 ( 4B′2 − (2A′ − 1)2 ) (2B′ cosh r − 2A′ + 1)2 + A′2.
    keywords: = −; arbitrary; case; constant; corresponding; cosh; cosh r; dimensions; d−22; eops; equation; exceptional; extended; g(r; gpt; invariant; jacobi; khare; laguerre; m(r; m−1; orthogonal; oscillator; pct; phys; polynomials; potentials; radial; shape; solutions; terms; transformation; usual; α−1; ωr2; −α−1,β−1; −ωr
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        item: #767 of 1243
          id: ap-4481
      author: Kumar, Sachin; Ahmed, Zafar
       title: NEW SPECTRAL STATISTICS FOR ENSEMBLES OF 2 × 2 REAL SYMMETRIC RANDOM MATRICES
        date: 2017-12-30
       words: 3452
      flesch: 73
     summary: Keywords: real symmetric matrices; Wigner surmise. 1. This is called the spacing distribution of Gaussian Orthogonal Ensemble (GOE) due to the orthogonal symmetry of real symmetric matrices.
    keywords: analytic; distribution; eigenvalues; elements; f(x; figure; function; gaussian; integral; level; linear; matrices; matrix; near; p(s; pdf; random; real; repulsion; semi; sin; spacing; symmetric; wigner
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        item: #768 of 1243
          id: ap-4546
      author: Solnař, Stanislav; Dostál, Martin; Petera, Karel; Jirout, Tomáš
       title: APPLICATION OF THE TEMPERATURE OSCILLATION METHOD IN HEAT TRANSFER MEASUREMENTS AT THE WALL OF AN AGITATED VESSEL
        date: 2018-04-30
       words: 7287
      flesch: 64
     summary: Experimental methods based on measuring vari- ous thermal quantities (heat fluxes, heat flow rates, temperatures) are the ones most frequently used for determining values of heat transfer coefficients. Nowadays, numerical methods implemented in many CFD packages solving momentum and heat transport equations are also fre- quently used to determine heat transfer coefficients in laminar as well as turbulent flow regimes.
    keywords: acta; agitated; axial; baffles; camera; case; characteristic; coefficients; correlation; data; dependency; diameter; dimensionless; dostál; engineering; experimental; figure; flow; flux; function; heat; heat flux; heat transfer; impeller; jet; jirout; karcz; k−1; liquid; local; local heat; mean; measured; method; number; nusselt; nusselt number; oscillation; parameters; petera; phase; pipe; plate; polytechnica; range; response; results; reynolds; rushton; shift; surface; system; s−1; temperature; thermal; thermography; time; toirt; transfer coefficients; transfer surface; turbine; values; velocity; vessel; vessel wall; wall; water
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        item: #769 of 1243
          id: ap-4553
      author: Kavuličová, Jana; Mražíková, Anna; Velgosová, Oksana; Ivánová, Dana; Kubovčíková, Martina
       title: STABILITY OF SYNTHESIZED SILVER NANOPARTICLES IN CITRATE AND MIXED GELATIN/CITRATE SOLUTION
        date: 2018-04-30
       words: 3906
      flesch: 54
     summary: Synthesis of silver nanoparticles by using sodium citrate method Chemically synthesized AgNPs were prepared using a chemical reduction method as demonstrated [15]. B:Biointerfaces, 102, 2013, p. 718-723. 108 http://dx.doi.org/10.1186/s40643-015-0076-2 http://dx.doi.org/10.1371/journal.pone.0103675 http://dx.doi.org/10.1016/j.chroma.2011.03.034 http://dx.doi.org/10.1021/jp026731y http://dx.doi.org/10.1039/C3RA44507K http://dx.doi.org/10.1021/es2037405 Acta Polytechnica 58(2):104–108, 2018 1 Introduction 2 Materials and methods 2.1 Chemicals 2.2 Synthesis of silver nanoparticles by using sodium citrate method 2.3 Synthesis of silver nanoparticles by using mixed gelatin/sodium citrate method 2.4 Methods for determination 3 Results and discussion 4 Conclusions Acknowledgements References
    keywords: 118th; 7th; ag+; agent; agnps; average; chemical; citrate; colloids; day; days; diameter; distribution; dls; figure; gelatin; influence; long; mater; method; mixed; nanoparticles; potential; prepared; presence; reaction; reduction; sci; short; silver; silver nanoparticles; size; sodium; solution; spr; stability; stabilizer; storage; surface; synthesis; synthesized; tem; term; zeta
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        item: #770 of 1243
          id: ap-4587
      author: Masáková, Zuzana; Mazáč, Jan
       title: ON SELF-SIMILARITIES OF CUT-AND-PROJECT SETS
        date: 2017-12-30
       words: 9566
      flesch: 79
     summary: On its basis, we will set the conditions on the vectors generating the lattice L = {∑s i=1 aili : ai ∈ Z } , so that the scheme is self-similar. = 0, b = −1, and c = d = f = 1, i.e., Z =   0 −1 1 1 0 1 0 0 1 1 0 −1 1 0 0 0   .
    keywords: 4π5; acta; algebraic; complex; conditions; corresponding; cos; cut; cyclotomic; delone; denote; eigenvalues; eigenvectors; example; fold; form; formalism; general; inner; integer; irreducible; lattice; linear; mapping; matrices; matrix; minimal; non; number; order; pisot; polynomial; polytechnica; product; project; project scheme; project set; projection; proof; proposition; quasicrystals; rotations; scheme; self; set; sets; similarities; similarity; sin; suitable; symmetry; theorem; use; vectors; vol; window; zuzana; π1(l; π1,π2; π2(l; σ(ω; 
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        item: #771 of 1243
          id: ap-4589
      author: Ohya, Satoshi
       title: ALGEBRAIC DESCRIPTION OF SHAPE INVARIANCE REVISITED
        date: 2017-12-30
       words: 4561
      flesch: 69
     summary: A−(j)A−(j + 1) · · ·A−(j + n− 1)ψEn,j+n(x), (4.12) where N = max{n ∈ Z≥0 : j + n < √ g} = νmax − j and ψEn,j+n(x) ∝ (sinh x)j+n exp(− g j+nx). − j2 − g2 j2 , (4.14) where A±(j) = ± d dx − j tanh x + g j .
    keywords: 1)2; = −; algebraic; case; commutation; dimensional; doi:10.1103; eigenvalue; figure; following; hamiltonian; hyperbolic; invariance; j23; j〉‖2; kepler; morse; note; operator; phys; potential; problem; quantum; relations; representation; rev; rosen; shape; space; spherical; state; ψen
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        item: #772 of 1243
          id: ap-4598
      author: Maamache, Mustapha
       title: NON-UNITARY TRANSFORMATION OF QUANTUM TIME-DEPENDENT NON-HERMITIAN SYSTEMS
        date: 2017-12-30
       words: 3924
      flesch: 72
     summary: Conclusion It has been established [21–23] that the general frame-work for a description of unitary time evolution for time-dependent non-Hermitian Hamiltonians can be based on the use of a time-dependent metric operator. [4] C. M. Cheng and P. C. W. Fung, J. Phys.
    keywords: algebra; associated; dependent; dependent non; equation; evolution; exp; following; h(t; hamiltonian; hermitian; inner; lett; lewis; maamache; mechanics; non; operator; phys; product; quantum; rev; schrödinger; sinh; solution; states; su(1; su(2; systems; time; transformation; transformed; unitary; |φn(t
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        item: #773 of 1243
          id: ap-4603
      author: Fassari, Silvestro; Gadella, Manuel; Nieto, Luis Miguel; Rinaldi, Fabio
       title: ON THE SPECTRUM OF THE ONE-DIMENSIONAL SCHRÖDINGER HAMILTONIAN PERTURBED BY AN ATTRACTIVE GAUSSIAN POTENTIAL
        date: 2017-12-30
       words: 3340
      flesch: 65
     summary: = 0, (30) with Ba,1� = Ba� − Ba,0� , which is obviously trace class. = −�1(λ)2 whose plot is given in Figure 2.
    keywords: 2/2; acta; birman; class; coupling; dimensional; energy; equation; erfc; expansion; e−p; function; gaussian; ground; hamiltonian; integral; operator; parameter; physics; rank; schrödinger; schwinger; spectrum; state; trace
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        item: #774 of 1243
          id: ap-4605
      author: Campoamor-Stursberg, Rutwig
       title: FUNCTIONAL REALIZATIONS OF LIE ALGEBRAS AS NOETHER POINT SYMMETRIES OF SYSTEMS
        date: 2017-12-30
       words: 4701
      flesch: 66
     summary: doi:10.1016/j.cnsns.2016.01.015. 378 http://dx.doi.org/10.1007/BF01177044 http://dx.doi.org/10.1080/16073606.1988.9631946 http://dx.doi.org/10.1016/j.cnsns.2014.01.006 http://dx.doi.org/10.1016/S0022-247X(03)00147-1 http://dx.doi.org/10.1016/j.physletb.2007.07.012 http://dx.doi.org/10.1063/1.4974264 http://dx.doi.org/10.1007/s0070 http://dx.doi.org/10.1063/1.4998715 http://dx.doi.org/10.1063/1.527118 http://dx.doi.org/10.1016/j.cnsns.2016.01.015 Acta Polytechnica 57(6):373–378, 2017 1 Introduction 2 Lie and Noether point symmetries of systems 2.1 Perturbations that preserve symmetry subalgebras 3 Functional realizations of sl(2,R) as Noether symmetry algebra 3.1 Separable kinetic Lagrangians 3.2 Systems with fixed symmetry 4 Time-dependent Lagrangians 5 Conclusions Acknowledgements References Functional realizations of Lie algebras are applied to the problem of determining Lie and Noether point symmetries of Lagrangian systems in N dimensions, particularly in the plane.
    keywords: a12(q; acta; algebra; analysis; approach; campoamor; case; condition; conservative; corresponding; differential; dynamical; equations; f(q; following; functions; g(q; gauge; general; generators; generic; inverse; lagrangian; lie; motion; noether; noether point; order; point; realizations; second; sl(2,r; solution; stursberg; symmetries; symmetry; systems; term; time; vector; ∂q1; ∂q2
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        item: #775 of 1243
          id: ap-4607
      author: Kotvytskiy, Albert; Bronza, Semen; Shablenko, Vladimir
       title: THE ANALYSIS OF IMAGES IN N-POINT GRAVITATIONAL LENS BY METHODS OF ALGEBRAIC GEOMETRY
        date: 2017-12-30
       words: 6465
      flesch: 82
     summary: In a situation of general position (the Jacobian of the system of lens equations is not equal to zero), the number of point images in an N-point gravitational lens has parity opposite to the parity of the number N. In the proof of Theorem 3 we use the following lemma. The physical formulation of the problem from an algebraic point of view 3 Reduction of the problem to the fundamental problem of classical algebraic geometry 4 Study of the set V1(F1,F2) (Extended solutions) 4.1 1-point lens (Schwarzschild lens) 4.2 2-point lens 5 The study of the set V0(F1,F2) (Point solutions) 6 Conclusions A Appendix References
    keywords: algebraic; bezout; bronza; coefficients; complex; coordinates; definition; deg; degree; equal; equations; example; f(x; f1,f2; field; form; geometry; gravitational; homogeneous; i=1; images; kotvytskiy; lens; lenses; matrix; methods; number; plane; point; polynomial; problem; proof; real; resultant; set; solutions; source; study; sylvester; system; theorem; tx2; variables; x21; x22
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        item: #776 of 1243
          id: ap-4608
      author: Joglekar, Yogesh N; Vemuri, Gautam; Wilkey, Andrew
       title: LAMBERT FUNCTION METHODs TO STUDY LASER DYNAMICS WITH TIME-DELAYED FEEDBACK
        date: 2017-12-30
       words: 3666
      flesch: 58
     summary: Since the intensity at very short times grows exponentially with the product of the differential gain coefficient ζ and N(t), and because the steady-state value of N(t) is a function of the pumping P, one can manipulate these two quantities to slow down the exponential growth of laser intensity and thereby enhance the time window in which both conditions are simultaneously met. Note that the rate equa- tion for the macroscopic polarization within the gain medium does not enter this model because it decays very rapidly, relative to the time scale at which E(t) and N(t) evolve in semiconductor lasers, and hence can be adiabatically eliminated.
    keywords: carrier; carrier inversion; complex; delay; differential; dynamics; e(t; electric; electric field; equations; excess; feedback; field; figure; formalism; function; gain; intensity; intracavity; inversion; kobayashi; lambert; lang; laser; model; n(t; optical; power; pump; rate; semiconductor; single; solution; state; steady; system; threshold; time; value; window
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        item: #777 of 1243
          id: ap-4610
      author: Kovács, József; Lévai, Géza
       title: ON THE COMMON LIMIT OF THE PT-SYMMETRIC ROSEN–MORSE II AND FINITE SQUARE WELL POTENTIALS
        date: 2017-12-30
       words: 4215
      flesch: 69
     summary: Keywords: PT -symmetric potential; bound states; scattering; Dirac-δ limit. [7] that are solved in terms of the (confluent) hypergeometric function [9] revealed that the characteristic features of PT -symmetric potentials can conveniently be studied using the exact analytical solutions of these potentials.
    keywords: -symmetric; asymptotic; case; coefficients; component; constant; corresponding; doi:10.1016; eigenvalues; energy; finite; functions; imaginary; lett; limit; lévai; math; morse; non; phys; potential; pt -symmetric; real; reflection; results; rosen; sign; spectrum; square; state; symmetry; transmission; vanishing; wave
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        item: #778 of 1243
          id: ap-4612
      author: Celeghini, Enrico; Gadella, Manuel; del Olmo, Mariano A
       title: LIE ALGEBRA REPRESENTATIONS AND RIGGED HILBERT SPACES: THE SO(2) CASE
        date: 2017-12-30
       words: 3881
      flesch: 74
     summary: Since this theorem is only valid for |f〉, |g〉 ∈ Φ, we conclude that (12) is only valid for |f〉 ∈ Φ from a strictly rigorous point of view. If |f〉, |g〉 ∈ Φ, then f(φ) = S|f〉 and g(φ) = S|g〉 belong to (SΦ) ⊂ L2[0, 2π].
    keywords: abstract; acta; basis; case; celeghini; continuous; del; dirac; discrete; dual; e−imφ; f(φ; functions; gadella; group; hilbert; l2[0; lie; m=−∞; math; mechanics; olmo; operator; phys; quantum; related; representations; rhs; rigged; so(2; spaces; special; topology; uir; unitary; vectors
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        item: #779 of 1243
          id: ap-4615
      author: Semoradova, Iveta
       title: CRYPTO-HERMITIAN APPROACH TO THE KLEIN–GORDON EQUATION
        date: 2017-12-30
       words: 2923
      flesch: 68
     summary: Free Klein–Gordon equation In case of free Klein–Gordon equation operator K = −∆ + m2 (16) acting on H = L2(R3) is positive and Hermitian. They satisfy the so called Dieudonée equation H†Θ = ΘH (25) and they are similar to Hermitian operators h = ΩHΩ−1, (26) where Θ = Ω†Ω is invertible and h = h†. In such scenario, the problem of negative probability interpretation of the Klein-Gordon equation can be reinterpreted as the problem of the wrong choice of metric operator Θ.
    keywords: acta; approach; crypto; czech; der; eigenvalues; eigenvectors; equation; form; free; gordon; gordon equation; hamiltonian; hermitian; hilbert; inner; interpretation; klein; matrix; mechanics; metric; mostafazadeh; non; operator; phys; physik; positive; probability; problem; product; quantum; quasi; real; schrödinger; space; theory; znojil; ψ(1; ψ(2
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        item: #780 of 1243
          id: ap-464
      author: Jelínek, I.
       title: Modal Logic - a Tool for Design Process Formalisation
        date: 2003-01-05
       words: 3979
      flesch: 58
     summary: Defi- nition 4 ensures that each design space can be described by a frame F: � �F W R� , , where W represents the set of metamodels, R � W � W characterizes the accessibility relation be- tween individual metamodels. [1] (structure [14]) formally as an ordered couple: � �F W R� , , where W set of worlds, R R W W� � , binary relation (accessibility relation).
    keywords: accessibility; accessible; axiomatic; axioms; cad; connectives; definition; design; following; formula; frame; individual; interpretation; logic; means; metamodel; modal; modal logic; object; possibility; possible; process; propositional; relation; set; steps; system; theory; type; university; valid; validity; world
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        item: #781 of 1243
          id: ap-466
      author: Makovička, D.; Král, J.; Makovička, D.
       title: Verification of the Wind Response of a Stack Structure
        date: 2003-01-05
       words: 3845
      flesch: 54
     summary: The measured vibration histories in terms of ac- celeration, velocities and relative deformations, together with the measurements of wind velocity and direction, were evalu- ated by a computer and compared with the response values assumed in the design, with the natural frequencies of the GRP extension according to the designer’s computation and with the frequencies of the dominant vibration sources – ma- jor machines in the environs of the stack. The mea- surements of wind velocity and direction were made on the level of the platform approximately at +53 level.
    keywords: acceleration; czech; design; direction; dominant; dynamic; effects; extension; fig; frequencies; frequency; grp; higher; horizontal; level; load; maximum; mean; mean wind; measured; measurements; natural; records; reference; response; seismicity; stack; steel; steel structure; structure; technical; tower; tower structure; value; velocities; vibration; wind; wind effects; wind load; wind velocity
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        item: #782 of 1243
          id: ap-468
      author: Titlestad, J.; Fairlie-Clarke, T.; Davie, M.; Whittaker, A.; Grant, S.
       title: Experimental Evaluation of Mountain Bike Suspension Systems
        date: 2003-01-05
       words: 4830
      flesch: 63
     summary: SU bicycles perform well in laboratory tests, but HT bicycles seem to have the advantage in time trials and races. The great majority of competition mountain bikes include a front sus- pension, but most professional cross-country cyclists do not ride full suspension bicycles
    keywords: arm; axle; bicycle; bike; bracket; bumps; chain; conditions; consumption; crank; cyclist; design; effect; energy; experiments; fig; force; frame; heart; higher; impact; laboratory; measurements; mountain; oxygen; pedals; performance; physiological; position; power; rate; rear; reduced; results; rider; riding; rig; road; roller; seat; significant; su bicycle; subjects; suspension; suspension system; system; tests; time; treadmill; university; variables; vol; wheel
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        item: #783 of 1243
          id: ap-4680
      author: Horovčák, Pavel; Terpák, Ján
       title: THERMOCHEMICAL CALCULATIONS USING SERVICEORIENTED ARCHITECTURE IN THE WEB SERVICE FORM
        date: 2018-02-28
       words: 7812
      flesch: 45
     summary: [Interpretation of chemical formulae using web service]. Keywords: thermochemical calculation; chemical reaction; service-oriented architecture; web service.
    keywords: acta; application; architecture; calculations; calling; capacity; case; chemical; chemical reaction; chemistry; client; cloud; components; composition; computing; constant; control; data; database; development; different; energy; enthalpy; entropy; equation; equilibrium; error; file; form; free; functions; gaseous; gibbs; heat; hoff; horovčák; html; individual; information; interval; language; list; logarithm; method; molar; moles; nasa; number; output; parameters; partial; php; polytechnica; pressure; process; product; properties; reaction; resources; service; soa; software; specified; states; step; structure; substances; system; table; temperature; thermochemdc; thermochemdc_app; thermochemical; thermochemical calculations; thermodynamic; tools; use; value; van’t; web; web service; wsdl; xml; ∆rh
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        item: #784 of 1243
          id: ap-4699
      author: Legerský, Jan
       title: MINIMAL NON-INTEGER ALPHABETS ALLOWING PARALLEL ADDITION
        date: 2018-10-31
       words: 6103
      flesch: 74
     summary: Parallel addition, i.e., addition with limited carry propagation has been so far studied for complex bases and integer alphabets. We give necessary conditions on the alphabet allowing parallel addition.
    keywords: addition; algebraic; alphabet; assumption; base; block; classes; congruence; conjugate; contradiction; digit; fina(β; finite; following; function; i=0; integer; j=−r; j∈z; lemma; local; matrix; minimal; modulo; modulus; necessary; non; number; numeration; parallel; parallel addition; polynomial; proof; set; system; theorem; z[β; z[ω; φ(λ; ≡β−1
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        item: #785 of 1243
          id: ap-470
      author: Cho, H.; Oh, B.; Jo, C.; Lee, K.
       title: Process Design for Hot Forging of Asymmetric to Symmetric Rib-web Shaped Steel
        date: 2003-01-05
       words: 2041
      flesch: 64
     summary: Heat Capacity (J/g�K) AISI 1055 (rail) 51.9 0.472 AISI H-13 (die) 28.6 0.460 Table 1: Thermal properties of materials Fig. 3: Folding initiation at a small fillet angle (45°) of moving die and inserts Fig. 4: Folding initiation between rib and web by top die shows that the metal flow and the folding phenomenon are dependent upon the beginning point of the tapered corner in the upper die. There- fore, optimal die design is necessary in order to avoid an increase in the forming load.
    keywords: design; die; dies; fig; final; flow; folding; forging; high; hot; increase; load; material; process; processing; rail; results; rib; shape; simulation; stage; symmetric; vol; web
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        item: #786 of 1243
          id: ap-4702
      author: Mašek, Zdeněk; Diblikova, Linda
       title: HYDROPHOBIC IMPREGNATION OF GEOPOLYMER COMPOSITE BY ETHOXYSILANES
        date: 2018-07-02
       words: 3507
      flesch: 55
     summary: 188 http://dx.doi.org/10.5923/j.textile.20150404.03 http://dx.doi.org/10.1016/j.porgcoat.2013.03.018 http://dx.doi.org/10.1023/A:1022627926243 http://dx.doi.org/10.1111/j.1551-2916.2004.01782.x http://dx.doi.org/10.1016/j.apsusc.2005.12.020 http://dx.doi.org/10.1016/j.tsf.2005.12.245 http://dx.doi.org/10.1039/C7RA04863G Acta Polytechnica 58(3):184–188, 2018 1 Introduction 2 Materials and methods 2.1 Preparation of geopolymer resin and composite samples 2.2 Preparation of hydrophobic solutions and impregnation of samples 2.3 Testing of hydrophobic agents' effectivity 3 Results and discussion 3.1 Effect of treatments on contact angle and storage modulus 3.2 Change of composites properties due to water uptake and sorption of water vapor 4 Conclusion Acknowledgements References The solution F was prepared by the same procedure as solution C, except that 18.6 g of HDTEOS was added instead of 18.6 g of PFTEOS.
    keywords: angle; composite; contact; czech; effect; ethoxysilanes; geopolymer; geopolymer composite; groups; hours; hydrolysis; hydrophobic; hydrophobic impregnation; impregnated; impregnation; materials; min; mixture; modulus; nanoparticles; non; pfoteos; preparation; procedure; properties; resin; results; rpm; samples; silica; sio2; solution; sorption; stirring; storage; structure; surface; temperature; teos; test; treatment; uptake; vapour; water; ° c
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        item: #787 of 1243
          id: ap-4708
      author: Krupička, Jan; Picek, Tomáš; Zrostlík, Štěpán
       title: REDUCTION OF UNCERTAINTIES IN LASER STRIPE MEASUREMENT OF SOLID PARTICLES CONCENTRATION
        date: 2018-07-02
       words: 4643
      flesch: 56
     summary: Keywords: laser stripe measurement; coarse particle concentration; solid fraction measurement; fluidization cell; brightness threshold. Laser stripe measurement (LSM) is a relatively novel method for measuring a local concentration of coarse particles in a mixture with fluid.
    keywords: angle; brightness; bth; calibration; camera; cell; concentration; coordinates; data; distinct; evaluated; figure; flow; fluidization; flume; histograms; hits; image; laser; laser sheet; laser stripe; line; lsm; mean; measured; measurement; method; observation; opt; optical; parameters; particles; peaks; position; results; sensitivity; sheet; stripe; target; threshold; transformation; value; vol; wall; ∆y0
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        item: #788 of 1243
          id: ap-4714
      author: Řehounek, Luboš; Denk, František; Jíra, Aleš
       title: NUMERICAL SIMULATIONS OF STATIC STRENGTH OF NOVEL DENTAL IMPLANTS
        date: 2018-08-30
       words: 2694
      flesch: 59
     summary: Keywords: dental implant; numerical; static strength; osseointegration; FEM. Both implants belong to the “push-in” category of dental implants.
    keywords: analysis; body; bone; clover; cylindrical; czech; denk; dental; dental implants; distribution; figure; implant; implant variant; load; loading; lower; mechanical; mpa; novel; numerical; reference; results; ribs; static; stem; strength; stress; system; values; variant; vertical; zv14112
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        item: #789 of 1243
          id: ap-472
      author: Ryś, J.; Sanecki, H.; Trojnacki, A.
       title: Analysis of Gear Wheel-shaft Joint Characterized by Comparable Pitch Diameter and Mounting Diameter
        date: 2003-01-05
       words: 5571
      flesch: 67
     summary: The well-founded assumption can be introduced that the frictional joint is additionally loaded with the entire force � �F F F Fa b a* ( )� � , while the force F b( )* in the bolt is the same during service ( ) (13) one parameter of the joint (consequently p) can be expressed in terms of the other parameters tg tg tg � � � � � � cos cos � � � � � � � � � � � � � � � 2 21 p � � � � �� � p c � �� � � � � � � � � � �� � � � � � � � � � � � �2 2 4 6 3 2 2 tg tg tg 2 cos � � 2 0 , (14) where � � � � � �� � w p p v s t b � � � � � � � � � * sin cos ( ) � � � � � � � �� 1 1 2 1 1 2 6 3 2 2 tg tg 3 1 1 2 3 u u Q k k k ku bE sE bE sE � � � � � � � � � �tg .
    keywords: analysis; assumed; bending; bolt; calculations; contact; diameter; dimensionless; factor; fatigue; fig; force; frictional; frictional joint; gear; intensity; joint; length; load; moment; mpa; parameters; pinion; pitch; pressure; r �; respect; shaft; small; spring; statistical; steel; strength; surface; taper; teeth; torsion; transmission; values; vol; wheel; � cos; � �
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        item: #790 of 1243
          id: ap-474
      author: Diviš, M.; Tichánek, R.; Španiel, M.
       title: Heat Transfer Analysis of a Diesel Engine Head
        date: 2003-01-05
       words: 2895
      flesch: 52
     summary: It contains a detailed description of a C/28 series diesel engine head FE model and a discussion of heat transfer analysis tunning and results. Keywords: heat transfer analysis, FEM, internal-combustion engine.
    keywords: analysis; assembly; boiling; boundary; case; coefficient; conditions; contact; cooling; cylinder; cylinder head; czech; engine; exhaust; fig; fuel; gases; head; heat; house; information; injector; inlet; measured; model; parts; points; results; seat; surfaces; table; technical; temperature; thermal; transfer; university; values; valve
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        item: #791 of 1243
          id: ap-4740
      author: Quesne, Christiane
       title: QUASI-EXACTLY SOLVABLE SCHRÖDINGER EQUATIONS, SYMMETRIC POLYNOMIALS AND FUNCTIONAL BETHE ANSATZ METHOD
        date: 2018-04-30
       words: 5829
      flesch: 82
     summary: k(k − 1) (l + 2)(l + 1)al+2 − n k − 1 (l + 1)bl+1 + Ck−l−2,n l! , l = 0, 1, . . . − C1,n (k − 3)!
    keywords: 1)ak; acta; c1,n; c2,n; coefficients; constants; corresponding; degree; differential; equation; fba; general; i=1; integration; j=1; k(k; k−1∑; k−2∑; l=0; lakshmanan; linear; m(m−1−p; m=0; m=1; math; mathews; method; nonlinear; order; oscillator; p=1; pages; phys; polynomial; qes; quantum; quasi; real; roots; schrödinger; second; section; solutions; solvable; symmetric; terms; z(z
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        item: #792 of 1243
          id: ap-476
      author: Jokele, B.; Fuchs, D. K.
       title: Reducing Time for the Product Development Process by Evaluation in the Phase of Solution Searching
        date: 2003-01-05
       words: 2116
      flesch: 58
     summary: 5/2003 Reducing Time for the Product Development Process by Evaluation in the Phase of Solution Searching B. Jokele, D. K. Fuchs Less and less time is available for product development process. 1: Possible stages in product development process a troubleshooting situation is lack of time.
    keywords: approach; change; components; cost; curve; degrees; design; development; effects; engineering; evaluation; fig; freedom; management; methods; münchen; possible; problem; process; product; properties; searching; situation; solution; step; system; technical; time; tools; troubleshooting
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        item: #793 of 1243
          id: ap-4768
      author: Hájková, Petra; Jíra, Aleš; Řehounek, Luboš
       title: VERIFICATION OF BEHAVIOUR OF HUMAN ENAMEL FOR FRACTURE TOUGHNESS DETERMINATION
        date: 2018-08-30
       words: 4054
      flesch: 60
     summary: A part of the re- view was also dedicated to a comparison of results of fracture toughness, determined by the VIF method using three different popular equations, for standard reference material (SRM). As the authors expected, none of these equations yielded correct certified values of fracture toughness for the SRM.
    keywords: applied; area; authors; behaviour; brittle; changes; contact; cracks; curve; dental; dentin; depth; determination; different; enamel; energy; fig; fracture; fracture toughness; hardness; hit; human; indentation; indents; initiation; kic; load; loading; materials; maximum; mechanical; method; modulus; nanoindentation; overall; propagation; properties; reduced; results; specimen; study; test; tip; toughness; use; values; velocity
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        item: #794 of 1243
          id: ap-478
      author: Geromiller, H.-P.; Farschtschi, A.
       title: Numerical Calculation of Electric Fields in Housing Spaces Due to Electromagnetic Radiation from Antennas for Mobile Communication
        date: 2003-01-05
       words: 1045
      flesch: 52
     summary: 43 No. 5/2003 0 20 30 40 50 60 70 80 90 0 1 2 3 E Emax / inc 10 Angle of incidence [°] Fig. 2: Dependency of maximum electric field strength inside a housing space referred to incident electric field strength (Emax /Einc) over angle of incidence (�) References [1] Berenger, J. P.: It should be taken into account that the effects of electromagnetic radi- ation on humans are quadratically dependent on the electric field strength, as these effects are mainly related to the ener- getic density of the electromagnetic waves, and therefore the negative impacts on humans increase disproportionately with electric field strength.
    keywords: angle; electric; electromagnetic; field; housing; incidence; incident; plane; pml; source; space; strength; time; wave
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        item: #795 of 1243
          id: ap-480
      author: Brůžek, B.; Leidich, E.
       title: Numerical Simulation of Stresses in Thin-rimmed Spur Gears with Keyway
        date: 2003-01-05
       words: 3516
      flesch: 71
     summary: [mm] Fig. 8: Stress distribution in the loaded root of the tooth (left) and in the keyway (right) for double-sided torque distribution; � � 2.5°; module 2 mm; normal force on tooth Z3; �, �: see Fig. [mm] Fig. 10: Stress distribution in the loaded root of the tooth (left) and in the keyway (right) for double-sided torque distribution; � � 2.5°; module 2 mm; normal force on tooth Z3; hub and key flushed 9 Numerical investigated influences The influence of the keyway on stress increase in the root of the tooth is mainly due to small thickness of the hub sk (see Fig. 2).
    keywords: angle; distribution; fig; hub; influence; keyway; left; loaded; loaded root; loading; maximum; model; module; principal; root; shaft; sided; stress; stress distribution; teeth; thickness; tooth; torque
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        item: #796 of 1243
          id: ap-482
      author: Vyhlídal, T.; Zítek, P.
       title: Anisochronic Internal Model Control Design
        date: 2003-01-05
       words: 4919
      flesch: 66
     summary: The zeros of system (5) are the roots of the following equation � � � �N s a s� � � �1 0exp � (6) Considering variable s as a complex variable, i.e., s � �� �j , the complex roots of (6) are the solutions of the equations � �� � � � � �Re exp cosN s a� � � �1 0�� �� (7) � �� � � � � �Im Theoretically, it is possible to use the term � �Ls s� �exp � , but as � � � �Re Im . 0 5 (where m is a dominant zero of the system) the ratio � L becomes very large, which is not convenient from the numerical point of view.
    keywords: anisochronic; closed; complex; control; controller; delay; design; dominant; dynamics; exp exp; exp �; fig; following; function; g s; imc; loop; m s; model; order; poles; real; roots; s k; s s; s �; spectrum; swy �; system; tf �; time; vol; zeros; � f; � j; � n; � �
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        item: #797 of 1243
          id: ap-4833
      author: Machovec, Jan; Reiterman, Pavel
       title: INFLUENCE OF AGGRESSIVE ENVIRONMENT ON THE TENSILE PROPERTIES OF TEXTILE REINFORCED CONCRETE
        date: 2018-08-30
       words: 5646
      flesch: 58
     summary: Three types of used textile reinforcement. Results Performed experimental program was focused on the assessment of the resistance of TRC made of HPC matrix and glass textile reinforcement to various aggressive environments.
    keywords: 100c; 50c; accelerated; acidic; aggressive; alkaline; behaviour; compressive; concrete; crack; days; doi:10.1016; durability; effect; environment; experimental; figure; flexural; freeze; freezing; glass; h2so4; high; influence; layers; loss; mass; materials; matrix; mechanical; naoh; point; program; properties; ref; reinforcement; resistance; results; samples; silica; solution; specimens; strength; structures; studied; surface; tensile; test; testing; textile; thaw; thawing; trc; values
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        item: #798 of 1243
          id: ap-484
      author: Lazim, Tholudin Mat; Mat, Shabudin; Saint, Huong Yu
       title: Computational Fluid Dynamic Simulation (CFD) and Experimental Study on Wing-external Store Aerodynamic Interference of a Subsonic Fighter Aircraft
        date: 2003-01-05
       words: 3586
      flesch: 53
     summary: Research on external store installation is complex and extensive. The methods for determining the influence of stores on the wing will be used to simulate the full size of this fighter aircraft with real size external store.
    keywords: -0.2; aerodynamic; aircraft; analysis; cfd; clean; coefficient; computational; configuration; distribution; elements; experimental; external; external store; fig; fighter; flow; fluid; geometry; interference; journal; lower; lower surface; mid; model; number; numerical; pressure; process; results; section; simulated; simulation; software; span; station; store; study; subsonic; surface; testing; tunnel; upper; upper surface; vol; wind; wing
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        item: #799 of 1243
          id: ap-486
      author: Ritschl, E.; Theiner, R.; Hanus, D.
       title: Inlet Channel for a Ducted Fan Propulsion System of a Light Aircraft
        date: 2003-01-06
       words: 1684
      flesch: 66
     summary: Smoothness and continuity of the channel chord ratio are the main requirements of channel design. 6/2003 Version No. Channel Design CFD Flow Computation 10 12 Fig. 5: Some of the design verions of the proposed channel Fig. 6: Experimental measurement of proposed channel © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 7 Acta Polytechnica Vol. 43
    keywords: acta; aircraft; channel; cold; cross; czech; data; design; engine; experimental; fan; field; fig; flow; inlet; jet; light; model; outlet; polytechnica; propulsion; section; technical; university; velocity; version; vol
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        item: #800 of 1243
          id: ap-4862
      author: Flegner, Patrik; Kačur, Ján
       title: EVALUATION OF SENSOR SIGNAL PROCESSING METHODS IN TERMS OF INFORMATION THEORY
        date: 2018-12-31
       words: 5151
      flesch: 58
     summary: The paper deals with the examination of basic methods of evaluation of sensor signals in terms of the information content of the given method and the used technical means. Digital measuring system Nowadays, in the practical applications of the the- ory of the automatic control or digital signal process- ing
    keywords: accuracy; acoustic; acta; amplitude; analog; analog signal; analysis; basic; bit; class; complex; content; control; converter; data; digital; disintegration; distribution; doi:10.1016; domain; drilling; elements; entropy; equation; evaluation; example; figure; flegner; frequency; hybrid; information; kačur; levels; log2; maximum; measured; measurement; measuring; metalurgija; methods; mining; number; polytechnica; possible; practice; probability; processes; processing; real; rock; rope; rotary; samples; sensor; sensor signal; set; signal; signal processing; source; spectra; spectrogram; spectrum; steel; system; technical; terms; theory; time; valid; value; variable
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        item: #801 of 1243
          id: ap-488
      author: Valášek, M.; Steinbauer, P.; Kolář, J.; Dvořák, J.
       title: Concurrent Design of Railway Vehicles by Simulation Model Reuse
        date: 2003-01-06
       words: 3177
      flesch: 48
     summary: The particular relationships between world models and their components can also be generalized into more abstract knowledge about the development of virtual models and their simulation (Fig. 5) Due to the nature of the described methodology, simulation models are an essential part of this.
    keywords: acta; cases; clockwork; components; conceptual; czech; design; different; engineering; environment; fig; informal; knowledge; level; methodology; model; modelling; object; particular; physical; polytechnica; previous; process; question; railway; real; real world; related; simulation; support; system; task; technical; university; vehicle; virtual; vol; world
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        item: #802 of 1243
          id: ap-4889
      author: Samir, Benbakreti; Boukelif, Aoued
       title: NEW APPROACH FOR ONLINE ARABIC MANUSCRIPT RECOGNITION BY DEEP BELIEF NETWORK
        date: 2018-10-31
       words: 7423
      flesch: 59
     summary: Arabic words recognition rates and classifi- cation time according the neural network. made in the different neuronal approaches. Arabic words recognition rates and classifi- cation time according the DBN network.
    keywords: acta; algorithm; approach; arabic; arabic characters; architecture; basis; belief; benbakreti; best; boukelif; calculation; case; character; classic; classification; database; dbn; deep; different; direction; divergence; end; error; extraction; features; figure; following; forms; function; grnn; handwriting; handwriting recognition; handwritten; hidden; input; layer; learning; length; manuscript; method; mlp; model; network; neural; neural network; neurons; new; number; online; online arabic; output; paper; parameters; phase; points; polytechnica; position; preprocessing; previous; probabilistic; probability; problem; pseudo; radial; rate; rbf; rbm; recognition; restricted; results; sampling; second; signal; step; system; table; tdnn; temporal; time; training; use; variability; vector; visible; weight; words; writer
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        item: #803 of 1243
          id: ap-490
      author: Hagras, T.; Janeček, J.
       title: Static vs. Dynamic List-Scheduling Performance Comparison
        date: 2003-01-06
       words: 4306
      flesch: 69
     summary: Keywords: list scheduling, compile time scheduling, task graph scheduling, homogeneous computing. The communication cost ci, j for transferring data from task vi (scheduled on pm) to task vj (scheduled on pn), is defined as: c S Ri j i j, ,� � � � , where S is the cost of starting communication between proces- sors (in secs), �i, j is the amount of data transmitted from task vi to task vj (in bytes), R is the cost of communication per transferred byte (in sec/byte).
    keywords: algorithm; better; communication; comparison; cost; dag; dls; dynamic; earliest; etf; execution; exit; fig; graph; hlfet; level; list; mcp; node; processor; schedule; scheduling; section; set; start; static; table; task; time; vol
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        item: #804 of 1243
          id: ap-4911
      author: Vokurka, Karel
       title: THE TIME DIFFERENCE IN EMISSION OF LIGHT AND PRESSURE PULSES FROM OSCILLATING BUBBLES
        date: 2018-10-31
       words: 6608
      flesch: 69
     summary: Keywords: spark-generated bubbles; light emission; bubble oscillations. The bubble size is RM1 = 49 mm, the intensity of bubble oscillation is pzp1 = 142.1. 327 Karel Vokurka Acta Polytechnica −100 −80 −60
    keywords: acoustic; acta; bubble; bubble oscillation; bubble size; cavitation; contraction; difference; difference δ1; discharge; distance; earlier; emission; example; expansion; experimental; figure; flashes; hydrophone; instants; intensity; interval; large; light; maxima; maximum; optical; oscillating; p1(t; phase; phys; plasma; plasmoids; polytechnica; pressure; pressure pulses; pulses; pzp1; radiation; records; results; review; rm1; size; spark; tc1; time; time difference; tp1; tu1; um1; value; variation; vokurka; voltage; water; waves; width; work
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        item: #805 of 1243
          id: ap-4915
      author: Pehnelt, Tomáš; Lafata, Pavel; Nevosad, Marek
       title: MODIFICATION OF HIERARCHICAL AGGLOMERATIVE CLUSTERING WITH COMPLETE LINKAGE FOR OPTIMAL USAGE WITH PASSIVE OPTICAL NETWORKS
        date: 2018-12-31
       words: 4221
      flesch: 52
     summary: Today, passive optical networks (PONs) represent a modern solution for high-speed FTTx subscriber lines and networks. Keywords: passive optical network; network optimization; topology optimization; algorithms; hierar- chical clustering; optical splitter placement.
    keywords: agglomerative; agglomerative clustering; algorithm; attenuation; city; clustering; clusters; comparison; complete; conference; deployment; designing; distance; doi:10.1109; fibres; figure; following; hierarchical; hierarchical agglomerative; ieee; international; linkage; methods; network; number; olt; ont; optical; optimization; optimum; order; paper; passive; passive optical; pon; pons; process; ratio; results; rural; solution; splitters; splitting; summary; techniques; topology; units; urban; value
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        item: #806 of 1243
          id: ap-4917
      author: Ouamara, Daoud; Dubas, Frédéric; Randi, Sid Ali; Benallal, Mohamed Nadjib; Espanet, Christophe
       title: GENERAL CALCULATION OF WINDING FACTOR FOR MULTI-PHASE/-LAYER ELECTRICAL MACHINES IRRESPECTIVE OF POLES NUMBER
        date: 2019-04-30
       words: 4547
      flesch: 74
     summary: Acta Polytechnica doi:10.14311/AP.2019.59.0153 Acta Polytechnica 59(2):153–161, 2019 © Czech Technical University in Prague, 2019 available online at http://ojs.cvut.cz/ojs/index.php/ap GENERAL CALCULATION OF WINDING FACTOR FOR MULTI-PHASE/-LAYER ELECTRICAL MACHINES IRRESPECTIVE OF POLES NUMBER Daoud Ouamaraa, b, ∗, Frédéric Dubasa, Sid Ali Randic, Mohamed Nadjib Benallalb, Christophe Espanetd a Univ. A new feature of the multi-layer windings is introduced, it is called false-zero windings, which is divided into two categories: i) α-windings (i.e., odd false-zero windings), and ii) β-windings (i.e., even false-zero windings).
    keywords: acta; application; calculation; concentrated; conductor; design; distribution; doi:10.1109; electrical; example; factor; false; figure; fractional; general; ieee; layer; layer winding; machines; magnet; matrix; method; multi; number; odd; paper; permanent; phase; poles; polytechnica; results; rotor; single; slots; stator; step; turns; vector; viz; winding; ′w]1
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        item: #807 of 1243
          id: ap-492
      author: Jokl, M. V.
       title: Indoor Air Quality Assessment Based on Human Physiology - Part 1. New Criteria Proposal
        date: 2003-01-06
       words: 3203
      flesch: 55
     summary: [dB TVOC], (5) where � CO2 and �TVOC represent the concentrations of CO2 and TVOC. (1) Applied to acoustic component of the environment L SPL P P P � � 20 0 log [dB], (2) where L SPLP � � sound pressure level [dB); P � acoustic pressure (when measuring the RMS value, i.e. the square root of the arithmetic average of a set of squared instantaneous values); P0 � acoustic pressure at the threshold of hearing (for air P0 � 20 �Pa).
    keywords: acta; air; building; co2; concentration; czech; dcd; decibel; environment; equation; experimental; fig; house; http://ctn.cvut.cz/ap/; human; indoor; level; locations; mean; measured; new; odor; perception; point; polytechnica; ppm; publishing; quality; relationship; scale; technical; threshold; toxic; tvoc; units; university; values; vol
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        item: #808 of 1243
          id: ap-4922
      author: Kravanja, Sebastjan; Sovják, Radoslav
       title: ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER HIGH-VELOCITY PROJECTILE IMPACT. PART I. EXPERIMENTS
        date: 2018-08-30
       words: 5134
      flesch: 60
     summary: Keywords: projectile impact; UHPFRC; depth of penetration; mechanical properties; shear crack resistance. Cubes were differ- entiated on the basis of the fibre volumetric content and effect of projectile impact was investigated in terms of the cratering damage.
    keywords: area; case; compressive; compressive strength; concrete; core; correlation; crack; crater; damage; deformable; degrees; depth; diameter; direct; doi:10.1016; dop; energy; experimental; factor; fibre; flexural; fmj; fraction; head; high; impact; impact resistance; increment; int; jacket; length; loading; material; measured; mechanical; mixture; msc; penetration; performance; point; projectile; projectile impact; properties; resistance; shear; slc; specimens; strain; strength; study; table; target; tensile; test; total; uhpfrc; ultimate; ultra; unconfined; velocity; volume; volumetric
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        item: #809 of 1243
          id: ap-4924
      author: Kravanja, Sebastjan; Sovják, Radoslav
       title: ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER HIGH-VELOCITY PROJECTILE IMPACT - PART 2. APPLICABILITY OF PREDICTION MODELS
        date: 2018-12-31
       words: 6389
      flesch: 57
     summary: Keywords: projectile impact; UHPFRC; prediction models; depth of penetration; mass ejection. The major supposition in the develop- ment of prediction models was that the penetration depth and crater volume are in inverse correlation to the unconfined compressive strength of the con- crete.
    keywords: abbas; accuracy; accurate; acta; almusallam; analytical; area; authors; case; compressive; concrete; cone; core; correlation; crater; data; deformable; deformable projectile; depth; diameter; doi:10.1016; effect; ejection; empirical; energy; eng; equation; et al; experimental; fibre; figure; fmj; formula; high; hwang; impact; int; length; logarithmic; mass; material; model; modified; msc; ndrc; non; nose; parameters; penetration; penetration depth; performance; prediction; prediction models; projectile; projectile impact; resistant; results; rigid; rubin; scabbing; semi; shape; slc; spalling; strength; structures; study; table; target; uhpfrc; ultra; use; values; velocity; volumetric; yarin
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        item: #810 of 1243
          id: ap-4928
      author: Shalimba, Veikko; Sopko, Vít
       title: JATROPHA OIL WITH IRON NANOPARTICLES APPLICATION IN DRILLING PROCESSES
        date: 2019-07-01
       words: 2500
      flesch: 63
     summary: Water with iron nanoparticles samples were chosen because, in general, water is the heat transfer medium for heat exchangers, because of its availability and good thermo-physical properties. According to the safety regulation EC.: 19017/2006, nanofluid samples used in this experiment were classified as not danger- ous materials under the act on chemical substances and preparations.
    keywords: base; change; conductivity; cooling; cutting; deviation; drilling; e100; experimental; figure; fluid; heat; high; iron; j n; jatropha; nanofluids; nanoparticles; oil; peak; properties; samples; table; temperature; thermal; time; transfer; volume; water
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        item: #811 of 1243
          id: ap-4934
      author: Panchenko, Sergii; Ohar, Oleksandr; Kutsenko, Maksym; Smachilo, Julia
       title: A METHOD OF COMPLEX CALCULATION OF RATIONAL STRUCTURAL PARAMETERS OF RAILWAY HUMPS
        date: 2018-12-31
       words: 3872
      flesch: 70
     summary: − I2 − 25) + U2x+2(V = 0, U2x(Ix − 50) = 0, U2x+1(I1 − I2 − 25) = 0, 376 vol.
    keywords: 1,m; area; arrangement; authors; braking; calculation; car; conditions; costs; crest; cut; difficult; element; gravity; heavy; hump; hyrp; i=1; length; limitations; linear; method; needed; number; origin; parameters; profile; railway; regulation; regulators; research; rolling; section; speed; structural; switching; task; technological; technology; v0,i1,i2; yrp
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        item: #812 of 1243
          id: ap-494
      author: Jokl, M. V.
       title: Indoor Air Quality Assessment Based on Human Physiology - Part 2. Limits
        date: 2003-01-06
       words: 3136
      flesch: 65
     summary: [�g � m�3] we get for adapted persons, preferring again �p as it was with CO2, � �� ��� TVOC � � � �46000 5 98 104ln .PD � � � [l�s�1�p�1](4) where RB � 7 5. 1�s �1 �p�1, prescriptive outdoor air require- ment for unadapted persons [9] GBTVOC � 5140 �g�h �1 �p�1, TVOC load caused by sedentary person (see Table 2.2); � iTVOC � 200 �g � m �3, TVOC indoor air concentration for 20 % dissatisfied unadapted person (see Fig. 2.4); � eTVOC �10 �g � m �3, TVOC outdoor air concentration, as a result of Eq.
    keywords: admissible; air; asthm; buildings; co2; concentration; czech; dcd; dissatisfied; dtv; fig; indoor; limit; long; optimal; persons; ppm; quality; range; sbs; short; table; term; tolerable; tvoc; unadapted; units; value; � g
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        item: #813 of 1243
          id: ap-496
      author: Jokl, M. V.
       title: Indoor Air Quality Assessment Based on Human Physiology - Part 3. Applications
        date: 2003-01-06
       words: 5247
      flesch: 68
     summary: G R R R P P P P � � � � � � � � � � � � 2420 10 10 0 21 10 7 6 6 2 1 1 1 . Keywords: indoor air quality, odors, air changes estimation.
    keywords: acta; adapted; air; air quality; appendix; area; ashrae; bsr; building; co2; conf; constituent; converted; crump; czech; direct; eds; environment; eur; exhaust; fixture; formulas; health; house; http://ctn.cvut.cz/ap/; indoor; indoor air; int; listed; log; london; minimum; new; odor; office; optimal; outdoor; people; persons; polytechnica; prescriptive; publishing; quality; range; rate; requirements; room; section; simple; spaces; standard; supply; system; table; technical; tvoc; units; university; values; ventilation; vol
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        item: #814 of 1243
          id: ap-4969
      author: Adlerová, Iva
       title: Editorial: FAREWELL AND WELCOME NEW EDITOR-IN-CHIEF
        date: 2018-07-02
       words: 394
      flesch: 51
     summary: Acta Polytechnica doi:10.14311/AP.2018.58.00IX Acta Polytechnica 58(3):ix–ix, 2018 © Czech Technical University in Prague, 2018 available online at http://ojs.cvut.cz/ojs/index.php/ap Farewell and Welcome New Editor-in-Chief My seven years with Acta Polytechnica ended on June 30. I very respect her professional skills, I am convinced that she has the right motivation for the successful management of Acta Polytechnica and I wish her all the best.
    keywords: acta; chief; cooperation; editor; journal; polytechnica; support
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        item: #815 of 1243
          id: ap-4976
      author: Munshi, Mohmmadraiyan M.; Patel, Ashok R.; Deheri, Gunamani B.
       title: A STUDY OF FERROFLUID LUBRICATION BASED ROUGH SINE FILM SLIDER BEARING WITH ASSORTED POROUS STRUCTURE
        date: 2019-04-30
       words: 4461
      flesch: 62
     summary: This paper attempts to study a ferrofluid lubrication based rough sine film slider bearing with assorted porous structure using a numerical approach. A study of ferrofluid lubrication based rough sine film slider bearing. . . study.
    keywords: assorted; bearing; bearing capacity; calculated; capacity; carman; carrying; comparison; deheri; effect; engineering; equation; ferrofluid; field; figure; film; flow; impact; journal; kozeny; load; load bearing; lubrication; magnetic; magnetization; model; patel; performance; porosity; porous; profile; result; rough; roughness; sine; slider; slider bearing; squeeze; structure; study; surface; system; tribology; velocity
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        item: #816 of 1243
          id: ap-498
      author: Pekárek, S.
       title: Non-Thermal Plasma Ozone Generation
        date: 2003-01-06
       words: 3396
      flesch: 66
     summary: Consequently, technologies based on non-thermal plasma can be highly ef- fective in promoting oxidation, enhancing molecular dissoci- ation or producing free radicals to stimulate plasmachemical reactions, which can be used for ozone generation or for other ecological applications such as decomposition of pollutants in air streams. Due to the fact that the processes of ozone generation are carried out at atmospheric pressure, we shall focus on atmo- spheric pressure electrical discharges only.
    keywords: air; atmospheric; case; configuration; corona; current; czech; discharge; electric; electrode; electrons; energy; example; field; fig; flow; gas; generation; high; main; needle; nitrogen; non; oxygen; ozone; plasma; plate; pressure; production; rate; reaction; silent; space; technical; temperature; thermal; tube; types; unit; university; vol; voltage
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        item: #817 of 1243
          id: ap-4999
      author: Olusunmade, Olusola Femi; Bulus, Abba Emmanuel; Kashin, Terwase Kelvin
       title: EFFECT OF IMPERATA CYLINDRICA REINFORCEMENT FORM ON THE TENSILE AND IMPACT PROPERTIES OF ITS COMPOSITES WITH RECYCLED LOW DENSITY POLYETHYLENE
        date: 2018-10-31
       words: 2744
      flesch: 54
     summary: Compared to the other types of fibre form, the powder form has the smallest volume. The higher value of tensile strength observed for the RLDPE/IC mat composite when compared to that of the neat RLDPE and RLDPE/IC particulate composite was due to the transfer of stress to the IC long-fibre.
    keywords: average; composite; cylindrica; elongation; fibre; fibre mat; figure; form; ic mat; ic particulate; impact; imperata; increase; journal; long; mat; material; matrix; mechanical; modulus; natural; particulate; polymer; properties; reinforcement; rldpe; sachets; specimens; stem; strength; tensile; test; value; vol; water
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        item: #818 of 1243
          id: ap-500
      author: Abdelaziz, Taha H. S.; Valášek, M.
       title: A Direct Algorithm for Pole Placement by State-derivative Feedback for Single-input Linear Systems
        date: 2003-01-06
       words: 7841
      flesch: 70
     summary: e e � � � , � ��Q � � � � � � � � � � 1 0 0 0 0 0 0 5 0 0 t te , and � �� . Finally, the feedback gain matrix is � � � � � �K q A B q At t t � � � � � � � � 1 10 10 1 100 4 1 4 1 1 2 3 1 2 e e � � � � � �3 1 2 3 1 2 3 1 2 10 2 100 10 1000 100 � � � � � , , e e t t � � � � � � � � �� � � �1 3 2 3 1 2 3 1 2 3 10 1 100 � � � � � � � � � � � � � � � � � � e t .
    keywords: bkt �; canonical; characteristic; closed; coefficients; control; czech; derivative; derivative feedback; design; equation; feedback; fig; formula; frobenius; gain; input; invariant; linear; loop; matrix; n n; original; placement; pole; polynomial; problem; q q; q t; s �; single; solution; state; state feedback; system; t n; t t; technical; time; transformation; transformed; transient; university; vector; vol; � en; � k; � n; � r; � �
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        item: #819 of 1243
          id: ap-5015
      author: Dvořák, Pavel; Jiránková, Eva
       title: EFFECTS ON THE FINAL INTENSITY OF INPUT FORCES IN LONGBOLTS INSTALLED AT THE MINING OPERATION 2 AREA, OKD, INC.
        date: 2018-10-31
       words: 3975
      flesch: 62
     summary: The primary objective and function of the installed bolting elements (rock bolts, long bolts) is not only the transfer of shear and tensile loads acting in the massif, but also the ability to bring a certain degree of stress into the massif and thereby positively affect it (closing microcracks, increasing the shear strength). In the deep coal mines of OKD, Inc., both bolts and long bolts of different designs are used for the rock massif and steel arch support reinforcement.
    keywords: acta; anchorage; applied; barrel; bolting; bolts; cable; cablebolt; coal; conditions; czech; effects; elastic; element; figure; force; friction; inc; individual; initial; input; intensity; ir-6; jack; length; long; longbolts; loss; losses; massif; mca; method; metres; mining; minova; nut; okd; operation; overburden; panel; pillar; polytechnica; rock; room; seam; strand; stress; stressing; support; thread; threaded; time; trial; wedge
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        item: #820 of 1243
          id: ap-502
      author: Elnagahy, Farag Ibrahim Younis; Šimák, B.
       title: Wavelet-Based Embedded Rate Scalable Still Image Coders: A review
        date: 2004-01-01
       words: 10128
      flesch: 58
     summary: Reversible wavelet transforms and their appli- cation to embedded image compression. The JPEG2000 standard for still image compression is presented.
    keywords: acta; algorithm; band; bit; bit stream; block; chrominance; coder; coding; coefficients; color; components; compressed; compression; czech; data; decoder; decoding; decomposition; different; encoder; encoding; entropy; ezw; fig; frequency; house; http://ctn.cvut.cz/ap/; ieee; image; image coder; image coding; image compression; information; integer; jpeg2000; level; low; luminance; orientation; original; pass; passes; performance; pixels; plane; polytechnica; prague; process; processing; publishing; quality; quantization; quantizer; rate; real; region; resolution; sample; scalability; scalable; scalable image; scheme; set; significant; snr; space; spatial; spiht; stage; step; stream; structure; sub; symbol; technical; transform; tree; university; vol; wavelet; wavelet coefficients; wavelet transform; zerotree
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        item: #821 of 1243
          id: ap-5020
      author: Sysyn, Mykola; Nabochenko, Olga; Kovalchuk, Vitalii; Gerber, Ulf
       title: EVALUATION OF RAILWAY BALLAST LAYER CONSOLIDATION AFTER MAINTENANCE WORKS
        date: 2019-02-28
       words: 6467
      flesch: 49
     summary: Principal scheme of the device for assessing ballast consolidation: 1 – server for signal processing; 2 – Wi-Fi microcontroller unit with ADC; 3 – electrodynamic emitter of pulse acoustic signal shaker –; 4 – seismic sensor SV-20P; 5 – rail; 6 – sleeper; 7 – ballast layer. Keywords: ballast layer consolidation; tamping machines; seismic method; impulse response interpre- tation; signal processing; feature selection; classification; clustering.
    keywords: acta; addition; amplitude; analysis; application; ballast; ballast consolidation; ballast layer; consolidated; consolidation; consolidation degree; data; degree; different; doi:10.1016; dsp; dte; dynamic; edge; edition; elastic; emitter; engineering; evaluation; experimental; features; figure; following; frequency; gerber; impulse; instantaneous; instantaneous frequency; interpretation; kinematic; kovalchuk; laboratory; layer consolidation; leading; lss; machines; maximum; measurements; methods; nabochenko; number; oscillation; passages; periodograms; polytechnica; processing; propagation; quality; railway; railway ballast; receiver; response; results; second; seismic; signal; spectrum; statistical; stone; study; sysyn; tamping; test; time; track; type; unconsolidated ballast; university; value; velocity; wave
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        item: #822 of 1243
          id: ap-5030
      author: Vetter, Michael
       title: MODEL-BASED SECURITY ANALYSIS OF FPGA DESIGNS THROUGH REINFORCEMENT LEARNING
        date: 2019-11-01
       words: 4799
      flesch: 49
     summary: We presented a method to generate a Markov Decision Process based reinforcement learning model from a formal, high-level system description (formulated in the domain-specific language FPGASECML.) Keywords: FPGA, IT security, model-driven design, reinforcement learning, machine learning.
    keywords: acta; actions; agent; analysis; approach; attacker; attacks; best; burlap; challenge; code; computer; constraints; cost; cyber; data; decision; deep; design; development; different; domain; episodes; example; expensive; figure; fpga; fpgamodule; fpgasecml; game; grand; implementation; information; learning; limits; low; machine; markov; mdp; methods; minimal; model; multiple; networks; new; number; physical; polytechnica; possible; probabilistic; problem; process; rate; reinforcement; reinforcement learning; representation; reward; runs; scenario; security; sequence; slot; solution; state; steps; storage; success; system; terminal; threat; use
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        item: #823 of 1243
          id: ap-504
      author: Brandejský, T.
       title: Implementation of Component-based Simulation Support Tool for Conceptual Design
        date: 2004-01-01
       words: 4279
      flesch: 50
     summary: � � � �� � � � � �� �op N X R op N X N R, _ ,� (2) Binary operator � � � � � �� � � � � � � �� �op N X N X R op N X N X N R1 2 1 2, , _ , ,� (3) � � � � � �� � � � � �� � � � � �op fn X crisp X R crisp X sgltn X op fn X sgltn X f1 2 2 2 1 2, , _ , , ,� � � �� �n R (4) � � � � � �� � � � � �� � � � � �op flv X crisp X R crisp X sgltn X op fn X sgltn X1 2 2 2 1 2, , _ , , ,� � � �� �fn R (5) � � � � � �� � � � � � � �� �op flv X fn X R op flv X fn X fn R1 2 1 2, , _ , ,� (6) � � � � � �� � � � � �� � � �op mifs X crisp X R crisp X sgltn X op mifs X sgltn1 2 2 2 1, , _ , ,� � � � � �� �X mifs R2 , (7) � � � � � �� � � � � � � �� �op mifs X fn X R op mifs X fn X mifs R1 2 1 2, , _ , ,� (8) � � � � � �� � � � � � � �� �op mifs X flv X R op mifs X flv X mifs R1 2 1 2, , _ , ,� (9) � � � � � �� � � � � �� � � �op milv X crisp X R crisp X sgltn X op milv X sgltn1 2 2 2 1, , _ , ,� � � � � �� �X mifs R2 , (10) � � � � � �� � � � � � � �� �op milv X fn X R op milv X fn X mifs R1 2 1 2, , _ , ,� (11) � � � � � �� � � � � � � �� �op milv X flv X R op milv X flv X mifs R1 2 1 2, , _ , ,� (12) � � � � � �� � � � � � � �� �op milv X mifs X R op milv X mifs X mifs In the following text transcription X Y� denotes that X is transformed during evaluation to Y, large chars denotes vari- ables, symbol ‘_’ is used for undefined value, � �op X K X Rn1, , , denotes n-ary operation op, � � � �� �op type X type R, then means unary operation op with argument of type type and with value X and result of type type and value R. Analogously, the form � � � �� �op T X T RR1 , then represents unary operation op with T1 type argument and value X and with the result of TR type and value R. Particular uncertainty description types are denoted by Table 3: 20 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol.
    keywords: algebraic; asked; case; component; conceptual; crisp; crisp x; czech; data; description; design; editor; function; fuzzy; information; linguistic; membership; method; mifs; milv; model; modelling; numbers; operations; possible; prague; r op; relations; representation; result; rules; simulation; support; system; table; technical; tool; type; uncertainty; university; use; value; variables; work; x fn; x mifs
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        item: #824 of 1243
          id: ap-5040
      author: Yusuff, Adeyinka S.; Popoola, Lekan T.
       title: OPTIMIZATION OF BIODIESEL PRODUCTION FROM WASTE FRYING OIL OVER ALUMINA SUPPORTED CHICKEN EGGSHELL CATALYST USING EXPERIMENTAL DESIGN TOOL
        date: 2019-02-28
       words: 6166
      flesch: 53
     summary: The 2k factorial experimental design was employed for an optimization of process variables, which include catalyst loading, reaction time, methanol/oil molar ratio and reaction temperature and their effects on the biodiesel yield were studied. The variables (factors) considered were the reaction temperature, reaction time, catalyst loading and methanol/WFO molar ratio.
    keywords: acid; active; al2o3; alumina; analysis; ase; biodiesel; biodiesel production; biodiesel yield; calcined; catalyst; catalyst loading; characterization; cm−1; design; doi:10.1016; effects; eggshell; experimental; factorial; figure; frying; ftir; heterogeneous; high; interaction; loading; maximum; methanol; methyl; min; model; molar; oil; oil molar; olutoye; optimization; point; prepared; process; production; properties; ratio; raw; reaction; reaction temperature; reaction time; sites; solid; stretch; study; surface; synthesis; synthesized; table; temperature; time; transesterification; value; variables; waste; wfo; wt.%; yield; yusuff; ° c
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        item: #825 of 1243
          id: ap-5043
      author: Čep, Robert; Malotová, Šárka; Lichovník, Jiří; Hatala, Michal; Legutko, Stanislaw
       title: THE INFLUENCE OF CUTTING CONDITIONS ON THE SELECTED PARAMETERS OF THE SURFACE INTEGRITY
        date: 2018-12-31
       words: 2611
      flesch: 60
     summary: The article deals with an investigation of residual stress in machined surface under conditions of high-feed milling and determination of the influence of machining conditions on the size and types of stress resulting from cutting into the machined surface. Keywords: residual stress; milling; machining; X-ray diffraction; surface integrity.
    keywords: chip; compressive; conditions; cutting; dependence; experiment; feed; figure; high; influence; integrity; machined; machining; material; measurement; milling; parameters; process; ray; research; residual; residual stress; results; roughness; sample; speed; steel; stress; surface; tensile; tool; tooth; university; values; vol
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        item: #826 of 1243
          id: ap-5050
      author: Pylypaka, Serhii F.; Klendii, Mykola B.; Nesvidomin, Viktor M.; Trokhaniak, Viktor I.
       title: PARTICLE MOTION OVER THE EDGE OF AN INCLINED PLANE THAT PERFORMS AXIAL MOVEMENT IN A VERTICAL LIMITING CYLINDER
        date: 2019-02-28
       words: 6100
      flesch: 64
     summary: The force F is directed opposite to the direction of sliding, that is to say, opposite to the vector of the absolute velocity of particle motion. In our case, particle motion must be different, since, if an ellipse moves, the angle be- tween a velocity vector and a horizontal plane is alter- nate, besides, the friction force from a cylinder wall acts on a particle.
    keywords: absolute; angle; angular; axis; coefficient; cos; cos(ωt−α; curve; cylinder; differential; direction; disk; element; ellipse; equation; f =; figure; force; fr =; friction; height; inclined; increase; limiting; material; motion; movement; operating; particle; particle motion; plane; projections; reaction; relative; rotates; rotation; segment; sin; sin(ωt−α; sliding; surface; s−1; value; velocity; vertical
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        item: #827 of 1243
          id: ap-506
      author: Alawy, A. El-Bassuny; Elnagahy, F. I. Y.; Haroon, A. A.; Azzam, Y. A.; Šimák, B.
       title: Stellar Image Interpretation System Using Artificial Neural Networks:
        date: 2004-01-01
       words: 4422
      flesch: 67
     summary: Filled circles: images identified by Bi-polar function and DAOPHOT-II Open circles, square and triangle: images identified by DAOPHOT-II only 4 Conclusions Some conclusions can be drawn from the present study: Both Uni-polar and Bi-polar functions are good discrimi- nating functions when used in an ANN approach to identify stellar images among the other entities in a CCD frame. Recently, we have developed two approaches employing Artificial Intelligence techniques to recognise stellar images [10] besides deriving all relevant astronomical data [11].
    keywords: acta; anns; approach; artificial; astronomical; case; ccd; cluster; code; cosmic; czech; daophot; data; entities; error; fig; frame; function; house; http://ctn.cvut.cz/ap/; images; learning; m67; neural; noise; open; output; paper; pattern; photometry; pixel; polar; polytechnica; prague; present; publishing; results; set; star; stellar; system; table; technical; university; values; vol
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        item: #828 of 1243
          id: ap-5063
      author: Szajewska, Marzena; Tereszkiewicz, Agnieszka Maria
       title: MULTIDIMENSIONAL HYBRID BOUNDARY VALUE PROBLEM
        date: 2018-12-31
       words: 7837
      flesch: 85
     summary: + k 3 C c (x )S 2a + 2b + c (1 − x )S 2b + c (z )− k 3 C c (x )S 2b + c (1 − x )S 2a + 2b + c (z ) C c (1 − x )C 2b + c (z )C 2a + 2b + c (x )+ C c (1 − x )C 2b + c (x )C 2a + 2b + c (z ) S c (z ) F 3 2( C 3a + 2b (y )+ C 3a + b (y )+ C b (y ))
    keywords: + √; 1√2; boundaries; boundary; branching; c b; c c; c(x; case; condition; constants; equation; families; finite; functions; fundamental; groups; helmholtz; hybrid; lie; math; new; normal; patera; problem; reflection; region; root; s b; s c; separation; simple; special; value; vectors; vol; − √
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        item: #829 of 1243
          id: ap-5070
      author: Sellitto, Miguel Afonso
       title: LEAD-TIME, INVENTORY, AND SAFETY STOCK CALCULATION IN JOB-SHOP MANUFACTURING
        date: 2018-12-31
       words: 4735
      flesch: 64
     summary: LTi – lead-time of order i; LT m – mean order LT ; LTσm – standard deviation of the order LT ; LT mw – mean part LT ; Qi – amount of value added by order i; ∑n i=1 Qi – total amount dispatched by all orders; LTσw – standard deviation of the part LT ; RI m – mean arrival rate of orders or parts; WIP m – mean WIP; Pm – mean throughput; ∆Tmax – maximum time elapsed between the arrival of two successive orders. The purpose of this article is to present a method for calculating the lead-time, the inventory, and the safety stock or buffer in job shop manufacturing, which are essentially stochastic variables.
    keywords: application; arrival; calculation; close; company; completion; control; data; days; econ; figure; furniture; high; i=1; industry; int; inventory; job; lead; level; manufacturing; mean; method; models; mto; order; parts; production; regression; research; safety; sets; shop; size; stock; system; time; wip; wlc; workload
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        item: #830 of 1243
          id: ap-508
      author: Tuncer, I. H.; Kay, M.
       title: Optimization of Flapping Airfoils for Maximum Thrust and Propulsive Efficiency
        date: 2004-01-01
       words: 3513
      flesch: 57
     summary: The flapping motion of the airfoil in combined plunge, h, and pitch, �, is specified by � �h h t� � 0 cos � , � �� �� � �0 cos � �t , where the angular frequency � is given in terms of the reduced frequency, k c U� �� . O D where � � � � � � �� � � O
    keywords: acta; aiaa; airfoil; amplitude; angle; attack; case; coefficient; czech; edge; efficiency; fig; flapping; flow; function; grid; jones; leading; maximum; motion; objective; optimization; overset; parallel; pitch; platzer; plunge; polytechnica; propulsive; steps; technical; thrust; university; unsteady; variables; vol
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        item: #831 of 1243
          id: ap-510
      author: Végh, L.
       title: The Psychological Image of Realistic Physical Quantities. The Psychological Speed of Aging
        date: 2004-01-01
       words: 3431
      flesch: 52
     summary: Psychological physical quantities – PQ (PPQ). Psychological quantities (the designa- tion of psychological images of real quantities) are actually necessary components of our decision making.
    keywords: age; aging; calendar; conditions; czech; dependence; different; example; external; function; images; individual; length; max; phenomena; physical; physical quantities; possible; ppq; psa; psychological; psychological images; psychological quantities; quantities; quantity; real; rpq; speed; technical; time; tpx; units; university; values; vpx
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        item: #832 of 1243
          id: ap-5105
      author: Kruschwitz, Jens; Lind, Martin; Muntean, Adrian; Richardson, Omar; Wondmagegne, Yosief
       title: MODELLING, SIMULATION AND PARAMETER IDENTIFICATION OF ACTIVE POLLUTION REDUCTION WITH PHOTOCATALYTIC ASPHALT
        date: 2019-02-28
       words: 4467
      flesch: 58
     summary: In this paper, we report on the use of numerical simulations to mimic the effect of the presence of a street paved with photocatalytic asphalt has on the NO reduction in the local ambient. Advanced solar photocatalytic asphalt for removal of vehicular NOx.
    keywords: acta; air; asphalt; concentration; conditions; cross; data; diffusion; doi:10.1016; effects; emission; environment; figure; identification; initial; kiel; level; measured; measurements; model; modelling; muntean; nox; parameters; period; photocatalytic; pollutant; pollution; polytechnica; problem; process; radiation; reaction; reduction; reference; s(t; section; setting; simulated; simulation; solar; term; time; traffic; urban; use; value; vehicle; wind
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        item: #833 of 1243
          id: ap-512
      author: Belyaev, B. A.; Leksikov, A. A.; Ovchinnikov, S. G.; Kraus, I.; Parshin, A. S.
       title: Magnetic Technique for Nondestructive Evaluation of Residual Stresses
        date: 2004-01-01
       words: 3851
      flesch: 55
     summary: It is very important that the low-frequency modulating magnetic field with frequency © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 43 Czech Technical University in Prague Acta Polytechnica Vol. Layout of MW detector of magnetic field 1 kHz present in the spectrometer acts as “a magnetic shake- -up”, due to which the recurrence of good results for repeated measurements is ensured.
    keywords: area; axis; czech; dependence; detector; direction; distribution; elastic; ferromagnetic; field; fig; film; grinding; inhomogeneities; local; magnetic; magnetic field; magnetization; magnetizing; measured; measurements; measuring; quantity; reversal; reversal field; sample; stray; stray fields; stresses; surface; sweep; technical; technique; tmf; treatment; university; vol
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        item: #834 of 1243
          id: ap-514
      author: Ponce, A. Noriega; Behar, A. Aguado; Hernández, A. Ordaz; Sitar, V. Rauch
       title: Neural Networks for Self-tuning Control Systems
        date: 2004-01-01
       words: 2986
      flesch: 61
     summary: In this case, instead of the net output error: � � � � � �e t u t u tu d� � (1) it is used the process output error: � � � � � �e t Applying the chain rule, we get: � � � � � � � �� � � � � � � � � � � � E t v E t e e e e u t u t r r vj y y u u j � � � � � (10) � � � � � � � �� � � � � � E t v e e e u t u t h j y y u j� � � � � � � �1 1 (11)
    keywords: algorithm; closed; coefficients; control; e e; e t; e u; e y; error; fig; layer; learning; loop; means; net; neural; output; paper; process; regulator; self; t t; time; u t; value; weighting; y u
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        item: #835 of 1243
          id: ap-516
      author: Zadražil, T.; Vodák, F.; Kapičková, O.
       title: Effect of Temperature and Age of Concrete on Strength – Porosity Relation
        date: 2004-01-01
       words: 2519
      flesch: 65
     summary: AP04_1.vp 1 Introduction As known from experimental studies of concrete behav- iour at room temperature, there is a close correspondence between compressive strength S and its porosity P. Commonly this dependence is decreasing function, i.e. strength S de- creases with porosity P. The present paper is based on the assumption that changes in porosity P are the main factor effecting changes in compressive strength S of hardened cement pastes and con- crete (see, e.g., [2]).
    keywords: age; cement; composition; compressive; concrete; czech; days; dependence; effect; fig; high; house; porosity; prague; properties; ratio; s s; s(p; samples; specimens; strength; structure; technical; temperature; university; vodák; vol
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        item: #836 of 1243
          id: ap-5173
      author: Kačur, Ján; Durdán, Milan; Laciak, Marek; Flegner, Patrik
       title: A COMPARATIVE STUDY OF DATA-DRIVEN MODELING METHODS FOR SOFT-SENSING IN UNDERGROUND COAL GASIFICATION
        date: 2019-08-31
       words: 21937
      flesch: 72
     summary: Proposal of Neural network considered for UCG data prediction. The piecewise-linear type of MARS models better fits the training data but, in the prediction on un- trained data, better results with the piecewise-cubic type of the model (see Table 4) are obtained.
    keywords: 4/2019; acta; activities; adaptive; air; algorithm; analysis; basis; bed; best; better; bf11; bf14; bf3; bf4; bf5; bf8; bf9; bfs; c o; c(x1; c(x2; c(x3; calculated; calorific; case; coal; coefficient; combustion; comparative; composition; concentration; conditions; conference; control; cubic; data; determined; different; dimensional; doi:10.1109; durdán; equation; error; experiment; figure; flegner; flow; following; forward; function; gasification; gaussian; gradient; hidden; high; highest; i=1; ieee; index; input; international; k(xi; kačur; kernel; laciak; layer; learning; linear; lowest; machine; mars; mars model; max(0; measured; measurement; methods; model; modeling; monitoring; multivariate; network; neural; neurons; non; number; observations; optimal; optimization; order; outlet; output; oxygen; paper; parameter; performance; phase; piecewise; polytechnica; possible; prediction; pressure; process; propagation; r2yy; reactor; real; regression; results; ryy; sensing; series; set; situ; soft; space; splines; statistical; study; support; svr; syngas; table; target; temperature; terms; test; testing; tightness; time; training; type; ucg; underground; value; variables; vector; vol
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        item: #837 of 1243
          id: ap-518
      author: Sopko, V.; Trtík, K.; Vodák, F.
       title: Influence of ? Irradiation on Concrete Strength
        date: 2004-01-01
       words: 952
      flesch: 63
     summary: It concerns neutrons and gamma irradiation acting on concrete construc- tions and accelerating their surface and internal changes. Of the irradiation spectrum we will observe only influ- ence of gamma irradiation.
    keywords: beams; composition; concrete; czech; decrease; dose; dosimeters; experiment; fig; gamma; irradiation; kgy; nuclear; strength; technical; test; university; vol
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        item: #838 of 1243
          id: ap-5194
      author: Haider, Haider Tarish; Muhsen, Dhiaa Halboot; Shahadi, Haider Ismael; See, Ong Hang; Elmenreich, Wilfried
       title: DYNAMIC SMART GRID COMMUNICATION PARAMETERS BASED COGNITIVE RADIO NETWORK
        date: 2019-07-01
       words: 6966
      flesch: 52
     summary: Trust based reliable transmission strategies for smart home energy management in cognitive radio based smart grid. 2. Cognitive radio parameters The CR provides the ability to sense the surrounding wireless environment periodically and to adapt the transmission parameters appropriately according to the objectives for the optimal utilization of spectrum bands [29].
    keywords: acta; algorithm; applications; architecture; bands; ber; blm; channel; cognitive; cognitive radio; communication; communication mode; convergence; crde; crossover; data; decision; differential; doi:10.1016; dynamic; ecm; energy; engine; environment; evolution; fast; figure; fitness; function; generations; grid; grid communication; haider; han; high; home; htm; management; maximum; method; minimum; mode; modulation; multi; multiple; mutation; networks; number; objective; optimal; optimization; parameters; performance; polytechnica; power; problem; psk; psm; pso; qam; radio; rate; results; saving; scheme; score; selection; single; smart; smart grid; solutions; spectrum; system; table; throughput; time; transmission; transmission parameters; transmit; vector; weighting; wireless
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        item: #839 of 1243
          id: ap-520
      author: Šimáně, Č.; Vognar, M.; Chvátil, D.
       title: The System for Control and Stabilization of the Beam Position in the Microtron MT-25 in Prague
        date: 2004-01-01
       words: 3250
      flesch: 52
     summary: Therefore a system has been designed, which will be used in the future electron transmission line, with wire probes, which can be removed from the beam after the alignment procedure has been accomplished. From the same reason the determination of the correct chan- nel position by differential wire probes, which has been tried too, gave not satisfactory results.
    keywords: alignment; amplifier; axis; beam; beam position; chamber; channel; control; current; czech; departure; electron; electron beam; emission; extraction; fig; horizontal; load; magnetic; microtron; noise; orbit; orifice; output; path; position; prague; probe; resistor; secondary; secondary electron; space; stabilization; system; technical; transport; university; wire; wire probe
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        item: #840 of 1243
          id: ap-522
      author: Murray-Smith, D. J.
       title: Biological Systems Thinking for Control Engineering Design
        date: 2004-01-02
       words: 5862
      flesch: 45
     summary: If re- cruitment of motor units is the most significant factor in the development of tension in intact muscle this feature must be incorporated into neuromuscular control system models. Keywords: biology, control systems, design, neuro-muscular system.
    keywords: action; active; activity; adaptive; applied; artificial; biological; biological systems; central; changes; closed; complex; conditions; control; control system; design; development; dynamic; elements; engineering; experimental; features; feedback; fibres; form; frequency; fusimotor; gamma; human; important; increase; input; intrafusal; length; levels; load; loop; main; models; motoneurones; motor; muscle; muscle spindle; nerve; nervous; neural; neuromuscular; neuromuscular control; neuromuscular system; nonlinear; number; output; overall; pathways; present; primary; properties; pulse; receptors; reflex; response; robots; sensory; signal; single; spindle; stretch; system; tendon; tension; terms; thinking; types; units; university; vol
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        item: #841 of 1243
          id: ap-5222
      author: Pačák, Tomáš; Tatíček, František; Valeš, Michal
       title: COMPENSATION OF SPRINGBACK IN LARGE SHEET METAL FORMING
        date: 2019-11-01
       words: 3598
      flesch: 55
     summary: The methodology consists of three main parts: correct settings of virtual forming process (numerical simulation), springback analysis and springback compensation. The methodology was verified through a process of a numerical simulation, springback analysis and comparison with the reference geometry.
    keywords: accuracy; accurate; analysis; approach; bending; body; car; compensation; complex; description; fifth; figure; final; forming; geometry; help; large; main; material; metal; methodology; numerical; outer; parts; phenomenon; plastic; press; process; production; ratio; results; settings; shape; sheet; simulation; solution; springback; springback analysis; springback compensation; stamping; strategy; time; tools; use; verification; virtual
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        item: #842 of 1243
          id: ap-524
      author: Lazim, Tholudin Mat; Mat, Shabudin; Saint, Huong Yu
       title: Computational Fluid Dynamic Simulation (CFD) and Experimental Study on Wing-external Store Aerodynamic Interference
        date: 2004-01-02
       words: 3151
      flesch: 49
     summary: 5: Model installation inside the wind tunnel a) b) c) Fig. 6: CFD model surface meshes: a) mesh for wing in tunnel, 111 239 elements, b) mesh for wing in tunnel, 221 112 elements, c) mesh for wing and store in tunnel, 122 158 elements - 0.8 - 0.6 - 0.4 - 0.2 0 0.2 0.4 0.6 - 0.2 0 0.2 0.4 0.6 0.8 1 1.2 x/c - C p coarse grid -lower coarse grid - upper fine grid - upper fine grid - lower Fig. 6c shows the simulation for wing with external storage with 122 158 elements.
    keywords: -0.2; -0.4; aerodynamic; aircraft; analysis; cfd; clean; coefficient; computational; configuration; distribution; experimental; external; external store; fig; fighter; flow; fluid; geometry; interference; journal; lower; lower surface; mid; model; pressure; results; section; simulation; software; span; st1; st2; st3; storage; store; study; surface; testing; tunnel; upper; upper surface; vol; wind; wing
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        item: #843 of 1243
          id: ap-526
      author: Sibilski, K.
       title: Dynamics of Micro-Air-Vehicle with Flapping Wings
        date: 2004-01-02
       words: 5533
      flesch: 58
     summary: From (18) we have the following relation: �� � �q A q w A w� �T T (20) Finally, the Appel function has the following form: S , , , t w w T w w w * � � �q w w w M h M w M h� � �� � 1 2 1 1 (21) where M q A M Aw T T q T� , and h q w A M A hw TT q T q, � �� . Functional S for the i-th element of the mechanical system is given by the equation [16]: S mi i i V i � ��� 1 2 � �v v� d (2) where �vi means the vector of absolute acceleration of ele- mentary mass dmi of the i-th body of the dynamical system considered (Fig. 2): � �v vi
    keywords: acta; aerodynamic; air; aircraft; animal; attack; axis; birds; body; control; czech; degrees; design; downstroke; dynamics; element; entomopter; equations; feathering; fig; flapping; flight; flying; following; forces; form; freedom; high; house; http://ctn.cvut.cz/ap/; insect; kinematics; lagging; large; lift; low; mavs; means; method; micro; models; module; motion; non; number; pietrucha; polytechnica; publishing; results; reynolds; sibilski; simulation; small; software; ssef; system; t t; technical; university; unsteady; upstroke; vector; vehicles; velocity; vol; w �; wing
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        item: #844 of 1243
          id: ap-5264
      author: Chrášťanský, Lukáš; Šanovec, Jan; Martawirya, Yatna Yuwana; Valeš, Michal
       title: APPLICABILITY VERIFICATION OF AUTOFORM SOFTWARE FOR FEM SIMULATION OF MECHANICAL FIXATION OF HEMMED JOINTS
        date: 2019-12-31
       words: 3058
      flesch: 57
     summary: Simulation results from Autoform R6 for UD2 strategy (a – width of profile in mm; b – isometric view; c – FLD) Simulation results from Autoform R6 after applying the Law of Similarity (a – width of profile in mm; b – isometric view; c – FLD)
    keywords: applicability; application; autoform; body; car; dimensions; fem; figure; fixation; grooving; hemmed; hemming; inner; joint; law; material; mechanical; metal; method; necessary; original; outer; parts; patent; possible; process; production; results; sheet; similarity; simulation; software; specific; stamping; strategy; table; use; verification
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        item: #845 of 1243
          id: ap-5266
      author: Kononenko, Serhii; Dobrotvorskiy, Sergey; Basova, Yevheniia; Gasanov, Magomediemin; Dobrovolska, Ludmila
       title: DEFLECTIONS AND FREQUENCY ANALYSIS IN THE MILLING OF THIN-WALLED PARTS WITH VARIABLE LOW STIFFNESS
        date: 2019-07-01
       words: 4980
      flesch: 57
     summary: Directional cutting force model To determine the forces acting in the cross section of the sample, as the most influencing factors of undesir- able deflections, it is necessary to define the compo- nents of the cutting forces Fig. Sample deflection at point 1 and 2 by 0.17984 mm and 0.15186 mm respectively.
    keywords: acta; amplitude; analysis; angle; basova; blades; calculation; components; critical; cutter; cutting; deflection; deviations; different; dobrotvorskiy; dynamic; element; end; engineering; fig; figure; finite; force; frequency; frequency analysis; geometry; harmonic; high; kononenko; machining; material; maximum; mechanical; methods; milling; model; natural; number; oscillations; parameters; parts; point; polytechnica; processing; research; resonance; response; response analysis; result; sample; section; speed; stiffness; surface; system; technological; thin; time; tool; undesirable; values; variable; walled
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        item: #846 of 1243
          id: ap-528
      author: Ota, M.; Jelínek, I.
       title: The Role of CAD in Enterprise Integration Process
        date: 2004-01-02
       words: 3750
      flesch: 55
     summary: Enter- prise integration processes are related to the integration of enterprise software systems The data special parts created by CAD systems are product oriented data.
    keywords: acta; application; approach; cad; cax; communication; companies; computer; czech; data; day; design; eip; eis; enterprise; environment; extensible; fig; file; house; http://ctn.cvut.cz/ap/; information; integrated; integration; intensive; internet; level; manufacturing; model; open; ota; pdm; polytechnica; portal; present; problem; processes; product; program; publishing; queries; software; supported; system; technical; technologies; university; user; vol
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        item: #847 of 1243
          id: ap-530
      author: Petrov, A. V.; Stepanov, Y. G.; Shmakov, M. V.
       title: Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
        date: 2004-01-02
       words: 3110
      flesch: 42
     summary: 44 No. 2/2004 0 0,5 1 2 2.5 3 3.5 - 10 0 10 20 �� CL B=2.0 B=1.0 B=0 B=2.0 B=1.0 B=0 - 0.4 - 0.2 0 0,2 0.4 - 10 0 10 20 �� C M - 0.07 - 0.06 - 0.05 - 0.04 - 0.03 - 0.02 - 0.01 0 0.01 - 10 - 5 0 5 10 15 20 �� C N 1.5 Fig. 3: Longitudinal aerodynamic characteristics Takeoff configuration � f Tx� � � �25 25 0 25; . - 0.05 - .0 04 - .0 03 - .0 02 - .0 01 0 0 01. 0 02. 0 03. 0 04. 0.05 - 20 - 15 - 10 - 5 0 5 10 15 20 �� c N B=1.0 B=0 B=2.0 B=2.8 Fig. 4: Lateral aerodynamic characteristics � � � f R � � � � � � 25 5 0 ficient B; in this case the region of maximum increments of the yawing moment shifts towards negative angles of sideslip � � �5 through �10 deg), i.e. in the direction of rotation of the propellers (Fig. 5). It consists of two parts: 1) determination of the isolated model power plant thrust; 2) a test methodology for the full aircraft model with two running Ps. 3.1 Methodology for measuring of Ps thrust The methodology is based on measurements of the forces and moments with mechanical balances AB-102 acting on an isolated nacelle with Ps on and off and elimination of the influence of the supporting devices and communications by using calculation and experimental methods. Determined as a result of balance measurements carried out at flow velocities of V� � 0–45 m/s, Ps speeds n � 0–6500 1/min and blade setting angles of �B � 13.3–29.44 deg were: � available range of thrust P and thrust coefficient � �s s sP n D� � 2 4, � available range of blade loading coefficient B P q Ds� �0 25 2. � , � possible range of Ps advances ratio � s s sV n D� � , � requirement power Ns and power coefficient �s range, where N Ms s� , � � � �s s s s s s sN n D M n D� �� � 3 5 2 52 , V�, q�, �� – free stream parameters, ns – propeller speed, l/s – propeller angular velocity, �� 2 n s, Ms – torque moment on the Ps shaft.
    keywords: aerodynamic; aircraft; angles; attack; blade; characteristics; coefficient; deg; directional; effectiveness; engine; fig; flow; increases; interaction; landing; left; loading; longitudinal; methodology; model; moment; power; propeller; range; results; rotation; running; slipstreams; stability; tail; takeoff; test; thrust; tunnel; twin; values; wind; wing; � �
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        item: #848 of 1243
          id: ap-532
      author: Vroom, R. W.; van Breemen, E. J. J.; van der Vegte, W. F.
       title: Developing a Conceptual Design Engineering Toolbox and its Tools
        date: 2004-01-02
       words: 6511
      flesch: 54
     summary: [3] Roozenburg N. F. M., Eekels J.: Product design: fundamen- tals and methods. [14] Kitamura Y., Mizoguchi R.: “Ontology-based descrip- tion of functional design knowledge and its use in a func- tional way server.”
    keywords: acta; approach; aspects; available; balanced; behaviour; bin; comprehension; computer; conceptual; conceptual design; criteria; delft; design; design engineering; designer; det; development; early; engineering; engineers; entrance; environment; example; house; http://ctn.cvut.cz/ap/; information; integrated; knowledge; links; modelling; models; need; ontology; order; output; phase; polytechnica; possible; process; processes; procs; product; prototype; publishing; research; resource; results; search; simulation; site; specific; stage; structure; support; system; technical; toolbox; tools; university; use; users; van; vol; way; work
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        item: #849 of 1243
          id: ap-534
      author: Valášek, M.; Steinbauer, P.; Šika, Z.; Zdráhal, Z.
       title: Knowledge Support of Simulation Model Reuse
        date: 2004-01-02
       words: 3596
      flesch: 46
     summary: Then we describe the development of simulation model of the TriJoint machine tool as a reuse development where the simulation model of Dyna-M is reused. Keywords: Simulation model, reuse, knowledge management, machine tool.
    keywords: acta; approach; case; ckmt; clockwork; conceptual; czech; developed; development; dyna; engineering; fig; indexing; informal; knowledge; level; machine; methodology; model; modeling; new; object; partner; physical; polytechnica; process; real; real world; reuse; search; semantic; simulation; simulation model; support; system; technical; tool; trijoint; university; vol; world; world object
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        item: #850 of 1243
          id: ap-536
      author: Studničková, M.
       title: The Effect of Pedestrian Traffic on the Dynamic Behavior of Footbridges
        date: 2004-01-02
       words: 2513
      flesch: 54
     summary: f t G f t G f t � � � � � � � 1 2 2 3 3 2 4 6 sin sin sin � � � � � p p p (1) where G Weight of a person (usually G � 800 N) [N] (2) for horizontal vibrations � � � �F t k f f tph h h h� 70 2sin �
    keywords: acceleration; acceptance; acta; analysis; bending; calculated; computational; criteria; czech; damping; design; dynamic; fig; footbridge; force; frequencies; frequency; harmonic; horizontal; house; http://ctn.cvut.cz/ap/; load; mode; natural; pedestrians; people; polytechnica; publishing; response; results; sin; structure; technical; university; value; vertical; vibrations; vol; walking
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        item: #851 of 1243
          id: ap-5374
      author: Ficker, Tomáš
       title: GENERAL MODEL OF RADIATIVE AND CONVECTIVE HEAT TRANSFER IN BUILDINGS: PART I: ALGEBRAIC MODEL OF RADIATIVE HEAT TRANSFER
        date: 2019-07-01
       words: 7496
      flesch: 65
     summary: 1. Introduction Heat radiation represents a dominant transfer mechanism of heat energy inside buildings. Although the presented application of the radiosity method has been aimed at heated large-area floors, the method may also be applicable to radiant heat energy emitted by small-area radiant panels often used in housing dwellings.
    keywords: acta; algebraic; application; buildings; ceiling; closed; convective; doi:10.1016; emitted; enclosure; energies; energy; envelopes; eqs; equations; exchange; factors; fji; floor; flows; flux; general; grey; heat; heat transfer; heating; i=1; j=1; losses; matrix; method; model; new; numerical; open; polytechnica; quasi; radiant; radiation; radiative; radiative heat; radiosities; radiosity; room; row; rule; section; simple; space; sum; surface; system; temperatures; thermal; total; transfer; values; view; walls; york; zero; εeb; φi↔j
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        item: #852 of 1243
          id: ap-5375
      author: Ficker, Tomáš
       title: GENERAL MODEL OF RADIATIVE AND CONVECTIVE HEAT TRANSFER IN BUILDINGS: PART II: CONVECTIVE AND RADIATIVE HEAT LOSSES
        date: 2019-07-01
       words: 8416
      flesch: 61
     summary: Keywords: Convective heat transfer, radiative heat transfer, room envelope, heat losses, iterative optimization. 3/2019 Model of radiative and convective heat transfer in buildings: Part II Heat transferred by convection (Nusselt’s number Nu
    keywords: acta; air; buildings; calculations; case; ceiling; characteristic; coefficients; cold; conduction; convective; convective heat; correlation; differential; energy; eqs; equations; exterior; external; ficker; floor; flow; following; free; functions; heat; heat losses; heat transfer; heat transport; horizontal; hsi3; interior; internal; laminar; larger; losses; method; model; nul; number; numerical; nusselt; polytechnica; radiation; radiative; radiative heat; ral; rayleigh; results; room; sides; sky; standard; surface; system; tab; temperatures; thermal; transfer; transport; tse2; tse3; tsi1; tsi2; tsi3; turbulent; values; w/(m2k; walls
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        item: #853 of 1243
          id: ap-538
      author: Fošumpaur, P.; Satrapa, L.
       title: Control of Systems of Reservoirs with the Use of Risk Analysis
        date: 2004-01-02
       words: 2418
      flesch: 51
     summary: In the field of controlling of reservoirs systems, it is often very difficult to formulate a reliable system of criteria. A system of reservoirs serves many purposes, which result from the basic functions of water reservoirs: storage, flood control and environmental functions.
    keywords: active; analysis; approach; capacity; control; criteria; czech; dam; dams; design; elements; failure; fig; flood; fuzzy; hazards; hydropower; level; multi; objective; optimisation; order; particular; phase; production; purposes; recreation; reservoirs; risk; set; storage; structures; system; theory; time; use; vol; water
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        item: #854 of 1243
          id: ap-5381
      author: Koska, Lukáš; Jadlovská, Slávka; Vošček, Dominik; Jadlovská, Anna
       title: INVERTED PENDULUM WITH LINEAR SYNCHRONOUS MOTOR SWING UP USING BOUNDARY VALUE PROBLEM
        date: 2019-11-01
       words: 5104
      flesch: 54
     summary: [12] contains algorithms enabling inverted pendulum control in the hybrid control struc- ture, i.e. by switching between the swing-up and sta- bilizing control algorithm. The development of the IPMaC as a framework for solving analysis/control problems of inverted pendulum systems also enabled us to unify and generalize the nomenclature and la- belling of input/output/state variables and physical 458 https://doi.org/10.14311/AP.2019.59.0458 https://ojs.cvut.cz/ojs/index.php/ap http://matlab.fei.tuke.sk/underactuated http://matlab.fei.tuke.sk/underactuated vol.
    keywords: algorithm; boundary; bvp; cart; control; control algorithm; design; dynamics; equation; equilibrium; feedback; feedforward; fig; figure; form; free; function; input; inverted; inverted pendulum; ipmac; jadlovská; laboratory; library; linear; mathematical; model; nonlinear; paper; parameters; pendulum; pendulum swing; pendulum system; planning; point; pole; position; problem; simulation; solution; state; structure; swing; system; time; tracking; trajectories; trajectory; underactuated; value; velocity; vošček; weight; θ0(t; θ1(t; θ∗0; θ∗1
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        item: #855 of 1243
          id: ap-5393
      author: Hynek, Petr; Kreibich, Viktor; Firt, Roman
       title: SUITABLE PRODUCTION TOOLS SELECTION WITH THE USE OF EVOLUTIONARY ALGORITHMS
        date: 2020-03-02
       words: 3053
      flesch: 60
     summary: This matrix generates a set of several numbers of solutions depending on other parameters, such as the lowest price, the lowest number of used welding guns, etc. Based on the simulation results, a matrix, which defines the possibility of using given manufacturing tools (in this case welding guns are considered) to connect the plates using the electrical resistance spot welding process, is created.
    keywords: acta; algorithms; analysis; availability; case; chromosome; combination; configuration; design; evolutionary; figure; genetic; guns; ideal; lowest; matrix; method; mutation; necessary; need; number; optimization; points; polytechnica; possible; price; process; production; result; selection; set; simulation; software; solution; solver; suitable; system; task; tools; types; use; variables; welding; welding guns
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        item: #856 of 1243
          id: ap-5395
      author: Luňáčková, Barbara; Mohyla, Marek; Pinka, Miroslav
       title: THE EFFECT OF SOIL GRAIN SIZE ON THE DEFORMATION PROPERTIES OF REINFORCED GEOCELL LAYERS
        date: 2019-11-01
       words: 3640
      flesch: 55
     summary: Many researchers have observed the bearing capac- ity of geocell reinforced soils (e.g., [5, 6, 15, 16, 18–20]). Regrettably, the light dynamic load plate test proved to be unsuitable for geocell systems.
    keywords: 0/8; acta; aggregate; aspect; aspect ratio; backfill; bearing; capacity; characteristics; crushed; czech; deformation; deformation modulus; dimensions; doi:10.1016; effect; experiment; figure; geocell; grain; gravel; greater; layer; load; loading; materials; medium; model; modulus; plate; polytechnica; ratio; reinforcement; results; sand; second; settlement; size; soil; stage; static; strength; study; subsoil; system; test; unreinforced; values
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        item: #857 of 1243
          id: ap-5399
      author: Solnař, Stanislav; Dostál, Martin
       title: HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS
        date: 2019-08-31
       words: 6617
      flesch: 64
     summary: Heat transfer coefficients cause a temperature field to form on the thin plate, which can then be used to calculate local heat transfer coefficient values. Keywords: Heaviside function, heat transfer coefficient, experimental method, heat jump method.
    keywords: = l; acta; analytical; application; biδ; boundary; calculated; calculation; camera; change; coefficient; condition; cosh; data; derivation; differential; dostál; equation; experimental; figure; flow; flux; freund; function; general; hand; heat; heat transfer; initial; inverse; k−1; laplace; local; measured; measurement; method; m−2; new; numerical; oscillation; partial; polytechnica; problem; results; s sinh; sinh; solution; sqrt; surface; system; task; temperature; thickness; time; transfer; transfer coefficient; transformation; values; variable; wall
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        item: #858 of 1243
          id: ap-540
      author: Zagursky, V.; Zarumba, I.; Riekstinsh, A.
       title: A coding and On-Line Transmitting System
        date: 2004-01-02
       words: 1809
      flesch: 59
     summary: The digital circuits substitute time interval T1 by two short pulses, called START and STOP, which define the starting and finishing moments of time interval T1. The transmitter (see Fig. 1) has 64 identical voltage to time interval converters.
    keywords: accuracy; acquisition; channels; circuits; control; conversion; data; device; digital; fig; high; hold; input; interval; logic; measurements; mode; number; parallel; possible; pulses; receiver; sample; signal; start; stop; system; time; transmission; transmitter; university; vol
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        item: #859 of 1243
          id: ap-5414
      author: Al-Rkaby, Alaa Hussein Jassim
       title: EVALUATING SHEAR STRENGTH OF SAND- GGBFS BASED GEOPOLYMER COMPOSITE MATERIAL
        date: 2019-08-31
       words: 3510
      flesch: 58
     summary: In addition to the strength properties, studies car- ried out on geopolymer based soil showed that treated soils have a high durability At this percentage, the UCS of low strength clay and high swelling clay increased by 4.7 and 3.3 times respectively [15].
    keywords: activator; alkaline; ash; blast; civil; clay; composite; compression; content; different; doi:10.1016; dry; engineering; figure; fly; furnace; geopolymer; ggbfs; ground; high; hydroxide; improvement; journal; kpa; low; materials; maximum; particles; performance; ratio; results; rkaby; samples; sand; significant; silicate; similar; slag; sodium; soil; strength; study; times; triaxial; ucs; unconfined; variation; weight
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        item: #860 of 1243
          id: ap-542
      author: Zagursky, V.; Riekstinsh, A.
       title: Speech Signal Recovery in Communication Networks
        date: 2004-01-02
       words: 2689
      flesch: 60
     summary: For X X Xi i i� �� �0 5 1 1. ( ) the mean square error will be: � �E R R R mi XX XX XX( ) . Then, in accordance with (1), the mean square error will be: � �� � � �E E X X m R R mi i XX XX
    keywords: adaptive; case; correlation; end; error; interpolation; loss; losses; lost; mean; networks; non; order; packet; permutation; procedure; receiving; recovery; results; reverse; samples; second; sequence; signal; sounds; source; speech; square; transmission; use; vol
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        item: #861 of 1243
          id: ap-544
      author: Čulík, J.
       title: Simulation of Scoliosis Treatment Using a Brace
        date: 2004-01-02
       words: 4508
      flesch: 68
     summary: The spinal curvature is stored in the computer as the following three functions � � � � � �y y x z z x x� � �, , � � , (1) where � is the turning based on the x-axis. i i i� � � � � �� � � � �� � � � � �, , ,1 1 1 1 1, (7) M M Z a M M Z a Z Z Z
    keywords: algorithm; axis; brace; calculated; child; child´s; computer; correction; curvature; czech; deformation; disc; displacement; fig; form; inter; k k; k l; l l; matrix; patient; plaster; positive; prague; ray; scoliosis; simulation; soft; spinal; spine; state; stiffness; stress; surface; technical; time; tissue; treatment; trunk; type; university; vertebral; vol
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        item: #862 of 1243
          id: ap-546
      author: Dušek, J.; Dostálek, M.
       title: Image Analysis of Eccentric Photorefraction
        date: 2004-01-02
       words: 2372
      flesch: 53
     summary: 5 Conclusions We have designed a universal system for measuring of synkinetic reaction (accommodation and convergence) based on I. PI position and eccentric photorefraction. Image analysis of the recorded sequences is performed in order to obtain curves of basic eye reactions (accommodation and convergence).
    keywords: accommodation; analysis; automatic; average; camera; convergence; curve; czech; difference; eccentric; eye; fig; fixation; horizontal; image; lens; light; measuring; method; monitors; noninvasive; number; photorefraction; picture; pixels; point; position; purkynje; roi; source; step; summation; system; technical; university; value; vol
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        item: #863 of 1243
          id: ap-5475
      author: Yusuff, Adeyinka Sikiru; Ewere, Donatus
       title: EXTRACTION AND EVALUATION OF OIL FROM GREEN ALGAE CLADOPHORA GLOMERATA BY HEXANE/ETHER MIXTURE
        date: 2020-04-30
       words: 3710
      flesch: 58
     summary: The pH value of the algal oil was determined to be 7.18 ± 0.01 and this indicates that the oil is neutral, which is in an agreement with previous studies on oil extraction from algae by many researchers References [1] A. Yusuff, M. Lala, L. Popoola, O. Adesina. Optimization of oil extraction from Leucaena leucocephala seed as an alternative low-grade feedstock for biodiesel production.
    keywords: acid; algal; algal oil; analysis; biodiesel; biofuel; biomass; characterization; cladophora; content; doi:10.1016; effect; energy; extraction; extraction temperature; fatty; feedstock; generation; glomerata; green; hexane; high; increase; method; oil; oil extraction; oil yield; particle; physicochemical; process; production; profile; properties; rate; results; seed; size; solvent; sources; study; temperature; time; value; water; yield
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        item: #864 of 1243
          id: ap-548
      author: Telfer, D. J.; Spencer, J. W.; Jones, G. R.; Humphries, J. E.
       title: A Novel Approach to Power Circuit Breaker Design for Replacement of SF6
        date: 2004-01-02
       words: 2817
      flesch: 49
     summary: The noticeable features are: (a) Relatively small dependence upon gas pressure with SF6. It will also be extended to other appropriate polymeric materi- als, with suitable background gases and gas pressures, and electromagnetic arc driving forces in order to enhance the production of the suitable chemical species.
    keywords: ablation; acta; arc; background; breaker; chemical; circuit; co2; conditions; contact; critical; current; cycle; design; experimental; extinction; fig; gap; gases; half; high; house; http://ctn.cvut.cz/ap/; ignition; interruption; length; peak; performance; polytechnica; pressure; psi; ptfe; publishing; sf6; shield; similar; system; telfer; university; voltage
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        item: #865 of 1243
          id: ap-5482
      author: Pramanik, Santiranjan; Thipse, Sukrut Shrikant
       title: KINEMATIC SYNTHESIS OF CENTRAL-LEVER STEERING MECHANISM FOR FOUR WHEEL VEHICLES
        date: 2020-07-01
       words: 3066
      flesch: 70
     summary: Introduction There are several types of steering mechanisms used for four-wheel vehicles. Optimal synthesis of steering mechanism including transmission angles.
    keywords: ackermann; angle; bar; bar mechanism; central; centre; compound; crossed; design; equal; error; figure; gears; kinematic; length; lever; mechanical; mechanism; method; offset; optimization; outer; pressure; ratio; steering; steering error; steering mechanism; synthesis; track; vehicle; wheel
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        item: #866 of 1243
          id: ap-5489
      author: Úradníček, Juraj; Musil, Miloš; Bachratý, Michal
       title: EIGENVALUES EVALUATION OF GENERALLY DAMPED ELASTIC DISC BRAKE MODEL LOADED WITH NON-CONSERVATIVE FRICTION FORCE
        date: 2020-03-02
       words: 3125
      flesch: 56
     summary: Re- liability, braking power and a fluent operation are important properties of brake systems. Thus, an unstable behaviour of mechanical systems can also be caused by a dissipation induced instability, which was, in the case of brake system, pointed out in the work of Hoffman and Gaul in 2003 [3].
    keywords: acta; amplitude; behaviour; bifurcation; brake; case; coefficient; complex; conservative; damped; damping; disc; effects; eigenvalues; elastic; evaluation; experimental; figure; force; friction; mass; material; mechanical; modal; mode; non; physical; point; polytechnica; proportional; real; response; simple; slovak; sound; squeal; stability; state; system; time; unstable; vibration
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        item: #867 of 1243
          id: ap-550
      author: Murín, J.; Kropáč, M.; Fric, R.
       title: Numerical Analysis of the Temperature Field in Luminaires
        date: 2004-01-02
       words: 2485
      flesch: 49
     summary: Keywords: thermal analysis, luminaire, choke coil, heat loss, surface temperature, finite element method. Surface emissivity 0.7�0.9 Bulk temperature 19 °C Coef. of convection 7.5�9.5 Table 3: Expected parameters of convection and radiation of the heat Fig. 8: Temperature field on the surface of the choke coil (� � 8.5 W/m2K; � � 0.8)
    keywords: acta; analysis; calculation; choke; choke coil; circuit; coil; conditions; convection; current; emissivity; engineering; field; fig; heat; house; http://ctn.cvut.cz/ap/; light; loss; luminaire; measured; measurement; numerical; polytechnica; radiation; resistance; results; source; surface; temperature; thermal; university; values; vol; winding
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        item: #868 of 1243
          id: ap-5513
      author: Halder, Amlan Kanti; Paliathanasis, Andronikos; Leach, Peter Gavin Lawrence
       title: SIMILARITY SOLUTIONS AND CONSERVATION LAWS FOR THE BEAM EQUATIONS: A COMPLETE STUDY
        date: 2020-04-30
       words: 6030
      flesch: 75
     summary: We study the similarity solutions and we determine the conservation laws of various forms of beam equations, such as Euler-Bernoulli, Rayleigh and Timoshenko-Prescott. Keywords: Symmetry analysis, singularity analysis, conservation laws, beam equation.
    keywords: acta; algebra; analysis; beam; beam equations; bernoulli; bernoulli equation; conservation; differential; equation; euler; following; form; fourth; journal; laws; leach; lie; lie point; mathematical; new; nonlinear; ode; order; painlevé; paliathanasis; physics; point; point symmetries; polytechnica; prescott; rayleigh; reduced; reduction; respect; scaling; section; series; similarity; singularity; solutions; source; study; symmetries; symmetry; term; timoshenko; travelling; utt; wave; x−x0)4; αβuxxxx; φ(t
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        item: #869 of 1243
          id: ap-552
      author: Nikolovski, S.; Barić, T.
       title: Computer Aided Design of Transformer Station Grounding System Using CDEGS Software
        date: 2004-01-02
       words: 2724
      flesch: 52
     summary: Maxwell’s equations can be used to describe electric field E and magnetic field H in terms of scalar � and vector potential A: � � � � � � � 1 A (1) E A� � � �j� � (2) H � � � 1 � x A (3) � � � �� � j (4) where: � complex conductivity of the medium, � permeability of the medium, � conductivity of the medium, � permittivity of the medium. The first step in the design of transformer station grounding is to determine appropriate soil model, for predicting the effect of the underlying soil characteristics on the performance of the grounding system.
    keywords: acta; additional; apparent; cdegs; computer; current; czech; data; design; electrode; fault; fence; fig; grid; grounding; house; http://ctn.cvut.cz/ap/; layer; measured; measurement; model; polytechnica; potential; power; publishing; reach; resap; resistance; resistivity; safety; scalar; soil; station; step; study; surface; system; technical; touch; transformer; university; voltages; worst
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        item: #870 of 1243
          id: ap-5532
      author: Bošanský, Michal; Patzák, Bořek
       title: PARALLELIZATION OF ASSEMBLY OPERATION IN FINITE ELEMENT METHOD
        date: 2020-03-02
       words: 7332
      flesch: 57
     summary: Matrix assembly total times with dividing to evaluation of local matrix assembly times and localization into global matrix assembly times of the benchmark problem considered (Jete 3M). The performance of individual strategies of the vector assembly (in terms of the achieved speedup versus increasing the number of processors) for Jete250k test are presented in Fig- ure 4 and for matrix assembly in Figure 8.
    keywords: algorithm; assembly; assembly omp; benchmark; c++11; cache; case; code; colouring; computing; critical; data; different; element; figure; finite; global; individual; intel; jete3; lock; loop; m omp; matrix; matrix assembly; memory; method; multiple; mutex; number; omp; omp b105; omp b500; omp cp; omp cs(a1; omp dyn; omp lato(a3; omp ll(a1.2; omp nl(a2.1; omp sta; openmp; operation; parallel; parallelization; performance; posix; problem; processing; programming; prototype; pth; recursive; results; scalability; section; shared; sharing; simple; single; size(loce; speedups; strategies; synchronization; systems; threads; time; units; update; vector; vector assembly; ws omp; xeon
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        item: #871 of 1243
          id: ap-5534
      author: Kuznetsov, Alexandr; Oleshko, Oleg; Kuznetsova, Kateryna
       title: ENERGY GAIN FROM ERROR-CORRECTING CODING IN CHANNELS WITH GROUPING ERRORS
        date: 2020-03-02
       words: 4715
      flesch: 62
     summary: Let us fix the average error burst length lav and error probability per bit P0. It allows to describe the error behaviour in the communication channel and to develop practical recommendations on using error correcting codes.
    keywords: average; bch; bennet; binary; block; burst; channels; code; coding; continuous; correcting; data; decoding; dependencies; distribution; egc; energy; erroneous; error; error probability; expression; figure; froelich; gain; grouping; independent; lav; length; model; n−ξ; occurrence; package; ped; pn(l; probability; ratio; simplified; solid; symbols; transmission; ξ(1; ≤t(l
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        item: #872 of 1243
          id: ap-5536
      author: Kolaříková, Marie; Chotěborský, Rostislav; Hromasová, Monika; Linda, Miloslav
       title: THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT
        date: 2019-08-31
       words: 3458
      flesch: 65
     summary: [13] studied the phase formation at the soft steel interface and AlSi coating (with a silicon concentration of 5 and 10 %) at temperatures of 650-700 °C. [5] concluded that the iron diffusion from steel to AlSi coating prevails during the first two minutes of the heating (around 900 °C).
    keywords: 22mnb5; acta; al5fe2; alsi; analysis; chemical; coating; czech; diffusion; doi:10.1016; engineering; et al; feal; figure; formation; hardness; heat; hot; interface; intermetallic; journal; layer; left; materials; mechanical; min; minutes; modulus; parameters; phase; polytechnica; prague; process; properties; results; sample; steel; surface; t =; technology; temperature; time; treatment; weldability
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        item: #873 of 1243
          id: ap-554
      author: Bányai, T.
       title: Recycling and Networking
        date: 2004-01-02
       words: 4844
      flesch: 42
     summary: 44 No. 2/2004 Fig. 1: Structure of collection systems have to be considered. 5 Conception of the design of collection systems When an optimal logistic collection system is being formed, the internal and external logistic aspects need to be considered.
    keywords: acta; analysis; aspects; bányai; case; centres; closed; collected; collection; collection system; communal; companies; costs; czech; der; directives; disassembly; distribution; economic; economy; end; environmental; european; fig; formation; function; high; house; http://ctn.cvut.cz/ap/; hungary; important; large; level; logistic; loop; management; market; miskolc; number; operating; operation; order; planning; plants; polytechnica; process; products; publishing; quantity; recycling; services; single; small; system; tasks; technical; und; university; users; virtual; vol; waste
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        item: #874 of 1243
          id: ap-5541
      author: Al-Awad, Nasir Ahmad
       title: MODEL REFERENCE ADAPTIVE CONTROL-BASED GENETIC ALGORITHM DESIGN FOR HEADING SHIP MOTION
        date: 2020-07-01
       words: 4907
      flesch: 63
     summary: [4] have proposed two basic linear math- ematical models in light of the model of Davidson and Schiff, Nomoto’s models have been utilized broadly by control engineers for an investigation and outline of ship controllers. The historical backdrop of ship autopilots is over 80 years of age.
    keywords: acta; adaptation; adaptive; algorithm; angle; approach; autopilot; closed; control; controller; course; design; different; elements; engineering; error; execution; figure; framework; function; fuzzy; g.a; gain; genetic; heading; international; journal; law; linear; loop; lqr; marine; mathematical; method; mit; model; motion; movement; mrac; nomoto; nonlinear; order; parameters; pid; polytechnica; reference; requirements; response; rudder; sec; second; settling; ship; speed; steady; steering; surge; sway; system; time; transfer; transient; yaw
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        item: #875 of 1243
          id: ap-5544
      author: Ikponmwosa, Efe Ewaen; Ehikhuenmen, Samuel Onosedeba; Irene, Karieren Kate
       title: COMPARATIVE STUDY AND EMPIRICAL MODELLING OF PULVERIZED COCONUT SHELL, PERIWINKLE SHELL AND PALM KERNEL SHELL AS A POZZOLANS IN CONCRETE
        date: 2019-12-31
       words: 7500
      flesch: 63
     summary: Hence, from the result, it was concluded that blended cement concrete with a 20 % replacement of cement with the PSA and BLA was considered op- timum for ternary blended cement concrete. Mathematical model The results of and the experimental data for various properties of pozzolan blended concrete were anal- ysed using a bilinear interpolation method to develop mathematical models for predicting parameters with respect to its variables.
    keywords: addition; age; aggregate; american; analysis; ash; astm; blended; british; chemical; coconut; coconut shell; comparative; compressive; compressive strength; concrete; construction; curing; days; density; effect; engineering; figure; ikponmwosa; increase; journal; kernel; kernel shell; level; materials; mix; mm2; model; palm; partial; paste; pcs; percentage; periwinkle; periwinkle shell; pozzolans; ppks; pps; production; properties; pulverized; replacement; replacement level; research; results; setting; shell; shell ash; society; specimens; standard; strength; structural; study; table; tensile; testing; time; values; water; workability
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        item: #876 of 1243
          id: ap-5549
      author: Hron, Vojtěch; Halounová, Lena
       title: AUTOMATIC RECONSTRUCTION OF ROOF MODELS FROM BUILDING OUTLINES AND AERIAL IMAGE DATA
        date: 2019-11-01
       words: 7317
      flesch: 57
     summary: Automatic extraction of building roofs using LIDAR data and multispectral imagery. Keywords: Building reconstruction, roof model, edge detection, orthophoto, digital surface model, GIS. 1.
    keywords: 3d building; acta; adjacent; aerial; algorithm; als; analysis; angle; approach; automatic; building; building models; building outline; categorization; clouds; complex; creation; czech; data; dense; detection; digital; distance; doi:10.1016; edges; endpoints; extraction; figure; footprints; generated; generation; half; halounová; height; hip roof; hips; image; information; isprs; journal; laser; length; lod2; lsd; main; matching; method; models; ndsm; oblique; orthophoto; outlines; parallel; photogrammetry; pixel; planes; point; polygon; polytechnica; quality; reconstructed; reconstruction; remote; resolution; results; ridge; roof; roof edges; roof models; segments; sensing; shape; sides; skeleton; spatial; study; surface; survey; technique; type; use; valleys; vertices
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        item: #877 of 1243
          id: ap-5556
      author: Salawu, Saheed; Sobamowo, Gbeminiyi; Sadiq, Obanishola
       title: INVESTIGATION OF THE DYNAMIC BEHAVIOUR OF NON-UNIFORM THICKNESS CIRCULAR PLATES RESTING ON WINKLER AND PASTERNAK FOUNDATIONS
        date: 2020-04-30
       words: 8372
      flesch: 68
     summary: Keywords: Free vibration, natural frequency, Winkler and Pasternak, circular plate, Galerkin method of weighted residual. [4] investigated the vibration analysis of circular plates under the influence of in-plane loading resting on the Winkler foundation.
    keywords: acta; analysis; analytical; application; behaviour; boundary; case; circular; circular plate; condition; d2w; deflection; density; differential; doi:10.1016; dr2; dr3; dynamic; edge; elastic; equation; figure; foundation; free; frequency; function; galerkin; governing; increases; influence; investigation; method; mode; natural; non; nonlinear; parameter; pasternak; plate; polytechnica; present; radial; residual; results; salawu; shape; sobamowo; solution; stress; study; surface; symmetric; thickness; uniform; variation; vibration; w(r; weighted; winkler; ∂2w(r
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        item: #878 of 1243
          id: ap-556
      author: Chudý, P.
       title: Response of a Light Aircraft Under Gust Loads
        date: 2004-01-02
       words: 2940
      flesch: 64
     summary: AP04_2web.vp Nomenclature � �Mhh Modal Mass Matrix � �K hh Modal Stiffness Matrix M Mach Number k Reduced Frequency c Reference Length � �Q m khh ( , ) Unsteady Aerodynamic Force Matrix � Circular Frequency f Frequency g Structural Damping, Acceleration due to gravity � Air density V Airplane Velocity � �uh Modal Amplitude Vector � �P( )� Applied Gust Loading A Root-mean-square value of the response N0 Expected number of zero crossings with positive slope per unit time For single Input/Output systems, the PSD function of the response quantity, �(�), is related to the PSD function of the source, �(�), by � � � �( ) ( ) ( )� H i 2 � (2) where H i( )� is the frequency response function.
    keywords: acta; aerodynamic; aircraft; analysis; approach; bending; boxes; conditions; continuous; czech; density; discrete; fig; flight; formula; frequency; glider; gust; history; house; http://ctn.cvut.cz/ap/; loads; model; moment; nastran; polytechnica; properties; psd; publishing; response; root; span; static; structural; table; technical; time; turbulence; university; velocity; vertical; vol; wing; wise
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        item: #879 of 1243
          id: ap-5565
      author: Agustina, Tuty Emilia; Teguh, Dedi; Wijaya, Yourdan; Mermaliandi, Febrian; Bustomi, Ahmad; Manalaoon, Jantan; Theodora, Gita; Rebecca, Tessa
       title: STUDY OF SYNTHETIC DYE REMOVAL USING FENTON/TiO2, FENTON/UV, AND FENTON/TiO2/UV METHODS AND THE APPLICATION TO JUMPUTAN FABRIC WASTEWATER
        date: 2019-12-31
       words: 6301
      flesch: 60
     summary: The results of Fenton process are considered ineffective, therefore, the use of Fenton reagents needs to be combined with other advanced oxidation methods, namely UV light, TiO2 catalyst, or photocatalyst of UV/TiO2. As the a results, the photo-Fenton process was supe- rior to Fenton process.
    keywords: advanced; agustina; aops; band; catalyst; chemical; cod; colour; colour degradation; concentration; degradation; doi:10.1016; dyes; effect; engineering; equation; fabric; fe2; fenton; fenton process; fenton reagent; figure; h2o2; high; highest; hydrogen; hydroxyl; industry; journal; jumputan; light; method; minutes; molar; organic; oxidation; percentage; peroxide; photo; photocatalytic; pollutants; ppm; presence; process; processes; processing; radicals; ratio; reaction; reactive; reagent; red; removal; results; study; synthetic; textile; time; tio2; treatment; use; wastewater; •oh
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        item: #880 of 1243
          id: ap-558
      author: Slavík, S.
       title: Preliminary Determination of Propeller Aerodynamic Characteristics for Small Aeroplanes
        date: 2004-01-02
       words: 4293
      flesch: 69
     summary: � � � � � ) cos( ) ,2 �i (5) and the angle of the real incoming flow �: � � � � � � � � � ��� � � � � � � �0 7 0 7 0 7 0 7 . . . . cos( ) sin( )� �� � (11) c
    keywords: advance; aerodynamic; angle; blade; calculation; characteristics; coefficients; cos; curves; czech; decomposition; drag; efficiency; experimental; factor; fig; flight; form; geometric; geometry; induced; input; integral; lift; linear; lock; loss; maximum; method; model; number; numerical; parameters; power; procedure; propeller; ratio; referential; relative; results; rmax; section; set; sin; technical; thrust; tip; university; � �
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        item: #881 of 1243
          id: ap-5588
      author: Čížek, Michal; Pátek, Zdeněk
       title: ON CFD INVESTIGATION OF RADIAL CLEARANCE OF LABYRINTH SEALS OF A TURBINE ENGINE
        date: 2020-03-02
       words: 3528
      flesch: 66
     summary: The aim is to describe numerical calculations of fluid flow in labyrinth seals and evaluate the calculated data for different settings of radial clearance of labyrinth seals. On CFD Investigation of radial clearance of labyrinth seals. . .
    keywords: acta; air; analysis; calculated; calculation; cfd; clearance; conditions; constant; different; engine; enthalpy; fig; figure; flow; investigation; labyrinth; labyrinth seals; mach; mass; mesh; model; non; number; parameters; parts; polytechnica; pressure; radial; rccorr; results; rotating; rotor; seals; shaft; static; stator; teeth; temperature; total; turbine; velocity; volume
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        item: #882 of 1243
          id: ap-5592
      author: Gabrišová, Ľudmila; Peciar, Peter; Macho, Oliver; Juriga, Martin; Galbavá, Paulína; Nižnanská, Žofia; Kubinec, Róbert; Valent, Ivan; Peciar, Marián
       title: THE DEVELOPMENT OF A NEW ADSORPTION-DESORPTION DEVICE
        date: 2020-12-31
       words: 4686
      flesch: 55
     summary: Partial pressures of ethanol [Pa] pW Partial pressures of water [Pa] VC Volume of the product (condensate) after adsorp- tion–desorption process [ml] VM M Volume of the model mixture in stock vessel before adsorption [ml] ∆VM M Volume of the model mixture in stock vessel after adsorption [ml] Acknowledgements As an adsorbent, it is possible to use granulated activated carbon (GAC) in the adsorption and desorption process.
    keywords: adsorbed; adsorbent; adsorption; air; analysis; bratislava; carbon; chemical; chemistry; circulator; compounds; concentration; condensate; content; data; determination; development; device; distilled; distribution; doi:10.1016; engineering; ethanol; experiment; fermentation; fig; figure; flow; gac1; gac2; gacs; gas; heat; journal; liquid; mixture; model; new; organic; particle; process; processes; production; saturation; separation; size; stock; stripping; study; surface; table; technology; temperature; thermocouples; values; vapour; vessel; volatile; volume; water
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        item: #883 of 1243
          id: ap-5599
      author: Vashi, Yoginibahen Devendrasinh; Patel, Rakesh Manilal; Deheri, Gunamani Biswanath
       title: NEURINGER-ROSEINWEIG MODEL BASED LONGITUDINALLY ROUGH POROUS CIRCULAR STEPPED PLATES IN THE EXISTENCE OF COUPLE STRESS
        date: 2020-07-01
       words: 5104
      flesch: 69
     summary: Furthermore, this improvement in load bearing capacity is almost 58 % higher when 264 vol. [11] theory and this study discovered the advantages of couple stress fluid compared to Newtonian lubricants, such as improved 259 https://doi.org/10.14311/AP.2020.60.0259 https://ojs.cvut.cz/ojs/index.php/ap Y. D. Vashi, R. M. Patel, G. B. Deheri Acta Polytechnica bearing’s load capacity, reduced coefficient of friction and growth in squeeze film time.
    keywords: 0.001; acta; bearing; capacity; circular; combined; couple; deheri; dimensionless; effect; equation; ferrofluid; figure; film; fluid; impact; influence; journal; load; longitudinal; lubricant; lubrication; magnetic; model; neuringer; parameter; patel; plates; polytechnica; porous; pressure; roughness; s*=; slider; squeeze; step; stress; study; surface; trends; values; ψ =; −0.025
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        item: #884 of 1243
          id: ap-560
      author: Ulrych, J.
       title: Analysis of Unsteady Transonic Flow Fields by Means of the Colour Streak Schlieren Method
        date: 2004-01-03
       words: 2914
      flesch: 60
     summary: For the CSSM analysis M � � 0.9, � � 4 deg, � � � � 3 deg, f � 1, 15, 30 Hz, and t � 2.2 mm. The picture corresponds to M � � 0.9, � � 4 deg, � � � � 3 deg, f � 1 Hz, y � 17 mm, t � 2.2 mm.
    keywords: airfoil; analysis; angle; attack; centre; colour; cssm; czech; dead; deg; field; fig; flow; frequency; method; model; optical; oscillation; position; schlieren; shock; streak; terminal; test; transonic; unsteady; video; wave
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        item: #885 of 1243
          id: ap-562
      author: Catalano, F. M.
       title: On the Effects of an Installed Propeller Slipstream on Wing Aerodynamic Characteristics
        date: 2004-01-03
       words: 3536
      flesch: 61
     summary: Recent work [5, 6] and also demonstrated that laminar flow could be increased when pusher propellers are installed in convenient positions behind a wing, resulting in less friction drag. This phenomenon is especially © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 11 Acta Polytechnica Vol. 44 No. 3/2004 Fig. 8: Effect of the pusher propeller on separation, � � 14° Fig. 9: Transition and separation points at centre line for pusher model at position 01 Fig. 10: Transition and separation points at the centre line for pusher model, position 03 intense for propeller positions above the chord line, but even so it is much less intense than the backward movement of the turbulent separation front due to the propeller inflow.
    keywords: aircraft; angles; bladed; boundary; case; characteristics; configuration; drag; effect; fig; flow; high; incidence; increase; laminar; layer; measurements; model; pos; position; pressure; propeller; pusher; separation; set; slipstream; spanwise; speed; surface; tests; tractor; transition; tunnel; turbulent; university; visualisation; vol; wind; wing; wire; working
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        item: #886 of 1243
          id: ap-564
      author: Heger, J.
       title: Finite Element Modelling of Mechanical Phenomena Connected to the Technological Process of Continuous Casting of Steel
        date: 2004-01-03
       words: 3158
      flesch: 46
     summary: 18 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 44 No. 3/2004 Fig. 3: Stress-strain curves © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 19 Acta Polytechnica Vol. 44 No. 3/2004 Fig. 4: Stress distribution along the product outer surface Fig. 5: Residual stress distribution 2.7 Residual stresses The endless product of continuous casting is torch cut-off into slabs of the prescribed length and their successive grad- ual cooling in the environment of the production hall follows. Keywords: Continuous casting, steel slab, numerical simulation, finite element method, nonlinearity, large deformations, contact, crack initiation.
    keywords: algorithm; analysis; caster; casting process; conditions; contact; continuous casting; cooling; crack; distribution; element; fig; finite; forming; material; mechanical; method; mould; numerical; numerical simulation; phenomena; problem; process; product; program; results; rollers; sensitivity; simulation; slab; steel; strain; stress; stresses; surface; temperature; thermal; time
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        item: #887 of 1243
          id: ap-566
      author: Mareš, T.
       title: Controlling Laminate Plate Elastic Behavior
        date: 2004-01-03
       words: 1867
      flesch: 64
     summary: s1 3 2 2 1 � � � � � � � � 2 , � ��� ��� � �� �� � � � � � � � 1 4 3 5 4 1 2 N P c s P s w q ( , , ) ,� �w w R R R K �� � ��� ��� ��� � � � 1 2 3 1 � � � �� tg tg2 ,, � 1 4 5 0 1 2 K R R N � � � ��� ��� �tg tg 3 4 ( , , , )� In this P ��� , R ��� , � are known numbers, c � cos( ), s � sin( ) and are the searched ply orientations.
    keywords: example; laminate; lateral; loading; measure; middle; optimization; orientation; plate; plies; problem; respect; stiffness
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        item: #888 of 1243
          id: ap-568
      author: Bauma, V.; Valášek, M.; Šika, Z.
       title: Design and Properties of Octaslide Redundant Parallel Kinematics
        date: 2004-01-03
       words: 1868
      flesch: 59
     summary: AP04_3web.vp 1 Introduction This paper describes the conceptual design process of OCTASLIDE redundant parallel kinematics for a machine tool. 24 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 44 No. 3/2004 Design and Properties of Octaslide Redundant Parallel Kinematics V. Bauma, M. Valášek, Z. Šika This paper describes the conceptual design process of OCTASLIDE redundant parallel kinematics for a machine tool.
    keywords: -0.5; concept; czech; design; dexterity; fig; hexaslide; kinematics; links; machine; octaslide; parallel; redundant; structure; university
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        item: #889 of 1243
          id: ap-5680
      author: Mihalev, Mihail Stoyanov; Hardalov, Chavdar Momchilov; Christov, Christo Georgiev; Rinke, Monika ; Leiste, Harald ; Schneider, Johannes
       title: ADDITIVE LASER BARCODE PRINTING ON HIGH REFLECTIVE STAINLESS STEEL
        date: 2020-11-02
       words: 2682
      flesch: 58
     summary: The resulting additive coatings, produced from initial MoO3 powder by irradiation with a laser beam, reveal strong adhesion, high hardness, long durability and high optical contrast, which make the process suitable for barcode printing on materials such as high reflective stainless steel, which was always a challenge for the classical laser marking technologies. Spectral Reflectance Profile of stainless steel substrate and MoO3 layer, obtained by the ALM.
    keywords: acta; additive; alm; applied; bar; barcode; bars; black; coating; compliance; contrast; edge; experimental; fig; high; institute; laser; marking; materials; metal; minimal; moo3; printing; profile; properties; reflectance; reflective; scan; space; stainless; standard; steel; substrate; symbol; table; threshold; width
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        item: #890 of 1243
          id: ap-5687
      author: Silva, Willian T. F. D.; Borges, Filipe D. D. M.
       title: Genetic algorithms to determine the optimal parameters of an ensemble local mean decomposition
        date: 2021-06-30
       words: 6945
      flesch: 58
     summary: An ensemble local means decomposition method and its application to local rub-impact fault diagnosis of the rotor systems. Complementary ensemble local means decomposition method and its application to rolling element bearings fault diagnosis.
    keywords: acta; algorithms; amplitude; analysis; application; authors; bearing; better; components; cost; d e; data; decomposition; diagnosis; domain; effectiveness; ensemble; ensemble local; envelope; fault; figure; following; frequency; function; genetic; journal; li tu; local; local mean; m p; mean; mean decomposition; method; mixing; mode; new; noise; number; oelmd; optimal; optimization; order; p li; parameters; polytechnica; population; pre; processing; product; race; random; results; rrmse; section; signal; similar; spectrum; table; technique; test; time; tu d; values; vibration; white; work; x(t
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        item: #891 of 1243
          id: ap-570
      author: Maléř, Z.; Slavík, S.; Marczi, T.; Růžička, M.
       title: Common Mathematical Model of Fatigue Characteristics
        date: 2004-01-03
       words: 2623
      flesch: 67
     summary: � � �2 This model was verified by five sets of fatigue data taken from the literature and by our own three additional original fatigue sets. Studying this model, following knowledge was obtained: – the parameter ”stress ratio R” was a good physical characteristic – the proposed model provided a good description of the eight collections of fatigue test results by one equation only – the scatter of the results through the whole scope is only a little greater than that round the individual S/N curve – using this model while testing may reduce the number of test samples and shorten the test time – as the proposed model represents a common form of the S/N curve, it may be used for processing uniform objective fatigue life results, which may enable mutual comparison of fatigue characteristics.
    keywords: characteristics; curves; cycle; czech; equation; fatigue; fig; function; life; log; mathematical; model; new; number; original; paper; parameters; range; results; stress; system; technical; test; university; value
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        item: #892 of 1243
          id: ap-5709
      author: Beneš, Michal; Štefan, Radek
       title: HOMOGENIZATION OF TRANSPORT PROCESSES AND HYDRATION PHENOMENA IN FRESH CONCRETE
        date: 2020-03-02
       words: 7150
      flesch: 64
     summary: Periodic cell problem The problems (10) and (11) need to be solved in each discrete time step. This means that a very large number of cell problems need to be solved in order to compute homogenized coefficients A∗ and Λ∗ in the whole macroscopic domain Ω.
    keywords: acta; aggregates; analysed; analytical; approach; approximation; beneš; boundary; cell; cement; coarse; coefficients; composite; concrete; conditions; conductivity; degree; different; doi:10.1016; early; element; equations; example; experiments; figure; finite; framework; function; heat; homogenization; homogenized; hydration; initial; kg−1; k−1; liquid; mass; material; mesh; mesoscale; method; model; n+1; numerical; paper; parameters; paste; periodic; permeability; phenomena; polytechnica; porous; pressure; problem; processes; results; section; solution; step; structure; sviercoski; temperature; thermal; time; transport; variant; water; δ∆t
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        item: #893 of 1243
          id: ap-5715
      author: Daniyan, Ilesanmi; Tlhabadira, Isaac; Mpofu, Khumbulani; Adeodu, Adefemi
       title: DEVELOPMENT OF NUMERICAL MODELS FOR THE PREDICTION OF TEMPERATURE AND SURFACE ROUGHNESS DURING THE MACHINING OPERATION OF TITANIUM ALLOY (Ti6Al4V)
        date: 2020-11-02
       words: 9813
      flesch: 58
     summary: The feasible combinations of these process parameters produced 41 experimental trials whose response (surface roughness and temperature) were determined via the physical experimentations. Results from the response surface methodology The statistical analysis of the developed model for predicting surface roughness as a fucntion of the inde- pendent process parameters (feed rate, spindle speed, cutting velocity and depth of cut) as well as its Anal- ysis of Variance (ANOVA) are presented in Tables 4 and 5 respectively.
    keywords: acta; alloy; analysis; ann; artificial; average; correlation; cutting; cutting tool; daniyan; data; depth; design; developed; development; doi:10.1016; effect; equation; error; experimentations; feed; figure; fit; function; increase; international; journal; lack; linear; machining; magnitude; manufacturing; material; mechanical; methodology; milling; model; modelling; mpofu; network; neural; number; numerical; operation; optimization; output; parameters; performance; physical; piece; plot; polytechnica; predictive; process; process parameters; purposes; range; rate; response; response surface; results; rsm; set; significant; speed; spindle; spindle speed; statistical; surface; surface methodology; surface roughness; table; technology; temperature; term; ti6al4v; titanium; tlhabadira; tool; training; validation; value; velocity; work piece
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        item: #894 of 1243
          id: ap-572
      author: Leinonen, J. I.
       title: Superior Properties of Ultra-fine-grained Steels
        date: 2004-01-03
       words: 2491
      flesch: 66
     summary: During this cooling and transformation, the prolonged austenite grains change to ultra-fine grains of ferrite, pearlite, etc., depending on the steel composition and cooling rate. The effect of ferrite grain size on yield strength and impact transition temperature (tough/brittle), extrapolated to ultra-fine grain sizes, is shown in Fig.
    keywords: charpy; fatigue; ferrite; fig; fine; good; grain; high; hot; impact; japan; low; microstructure; novel; process; properties; rolling; size; steels; strength; structure; superior; temperature; test; tncp; toughness; ultra; ultrafine; vol; yield
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        item: #895 of 1243
          id: ap-574
      author: Polášek, M.; Macek, J.; Vítek, O.; Kozel, K.
       title: Integration of CFD Methods into Concurrent Design of Internal Combustion Engine
        date: 2004-01-03
       words: 4259
      flesch: 55
     summary: Using these tools, real limits for high-b.m.e.p., downsized SI engines and optimized cycle parameters can be estimated in advance, taking into account the auto-ignition and knock limits. Knocking considerably limits the parameters of SI engines.
    keywords: 3/2004; acta; advanced; application; bar; boost; cfd; code; combustion; compression; concept; cycle; cylinder; czech; deep; description; design; different; dimensional; efficiency; engine; fig; fuel; gas; heat; high; house; http://ctn.cvut.cz/ap/; ignition; knock; level; macek; medium; methods; mixture; model; modeling; new; paper; polytechnica; polášek; pressure; procedure; publishing; results; sae; simulation; space; stage; system; technical; temperature; thermodynamic; time; transfer; university; use; vol
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        item: #896 of 1243
          id: ap-576
      author: Matsuki, N.; Tokunaga, H.; Sawada, H.
       title: A Component-based Software Development and Execution Framework for CAx Applications
        date: 2004-01-03
       words: 3089
      flesch: 50
     summary: The MZ-Platform infrastructure is a component-based software development framework, designed for supporting enterprises to enhance digitalized technologies using software tools and CAx components in a self-innovative way. The XML-Component Transmutation module can store component assembly in XML format.
    keywords: application; architecture; assembly; broker; builder; bus; cad; cax; checker; component; data; design; development; enterprises; event; example; fig; file; framework; geometry; information; java; library; manufacturing; medium; modeling; new; object; parametric; platform; remote; screen; size; small; soap; software; tools; transmutation; users; xml
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        item: #897 of 1243
          id: ap-578
      author: Horák, M.
       title: Nanoelectronic Device Structures at Terahertz Frequency
        date: 2004-01-03
       words: 5328
      flesch: 63
     summary: A f x B g x A f x B g x C f x x � � � � � � � � � � � � � � ( ), ( ), ( ), ( ), ( ), 0 0 0 0 B D g x x C E U0 2� �( )max � triangular f x Ai( ) ( )� � , g x Bi( ) ( )� � Airy functions � �� � � � � � � � � � � �x x E UB 1 max , � � � � � � � � 2 2 1 3 mU x max � B trapezoidal f x Ai( ) ( )� � , g x Bi( ) ( )� � Airy functions � � � �( )x � �� � � 2 2 1 3 m U x ( )max �B B� , � � � � x e UB B B � �max parabolic f x U u( ) ( , )� � � , g x V u( ) ( , )� � � parabolic cylinder functions � �� �( )x xB � � � � � 8 2 2 1 4 mU x max � B , u E x m U � � � � B � 2 1 2 max Table 1: Electron wave functions in the barrier region j e im x x j e im inc trans � � � � � � � � 2 2 � � � � � A A A A C * * , * * . � � � C C C x x � � � � (5) The steady state barrier transmittance T Edc( ) is a function of electron energy E and it is defined as the ratio j jtrans inc .
    keywords: absorption; amplitude; b b; barrier; bias; cos; current; czech; electron; emission; energy; exp; fig; frequency; function; harmonics; height; high; incident; max �; modulation; n �; parabolic; potential; quanta �; quantum; rectangular; region; signal; sin; small; structure; t e; t t; t �; terahertz; thz; transmission; transmittance; u �; university; vol; voltage; wave; � b
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        item: #898 of 1243
          id: ap-5781
      author: Sabatini, Michel; Havlík, Jan; Dlouhý, Tomáš
       title: Improving the efficiency of a steam power plant cycle by integrating a rotary indirect dryer
        date: 2021-06-30
       words: 4746
      flesch: 62
     summary: To obtain dried fuel, more water, in dependence on the moisture content before and after drying, has to be evaporated. Keywords: Indirect drying, biomass drying, power generation efficiency.
    keywords: area; biomass; boiler; combustion; consumption; content; cycle; dryer; drying; efficiency; energy; evaporation; extraction; figure; flow; flue; fuel; gas; generation; generation efficiency; heat; heated; heating; high; increase; indirect; indirect dryer; integrated; integration; low; material; moisture; moisture content; parameters; plant; plant cycle; power; power generation; power plant; pressure; process; required; results; rotary; steam; steam power; surface; temperature; turbine; value; water; wet
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        item: #899 of 1243
          id: ap-580
      author: Geromiller, H.-P.; Farschtschi, A.
       title: Numerical Calculation of Electric Fields in Housing Spaces due to Electromagnetic Radiation from Antennas for Mobile Communication
        date: 2004-01-03
       words: 1474
      flesch: 52
     summary: 2: Dependency of maximum electric field strength inside a housing space referred to the incident electric field strength (E Eincmax ) over angle of incidence (�) related to the energetic density of electromagnetic waves, and therefore the negative impacts on humans increases dispro- portionately with electric field strength. Investiga- tion of electric field strength inside the house-spacing was based on different angles of incidence within the range of 5 ° � � � 85° in steps of �step � 5°.
    keywords: electric; electromagnetic; field; house; housing; incident; plane; radiation; space; strength; time; wave; y z
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        item: #900 of 1243
          id: ap-5809
      author: Vokurka, Karel
       title: ON THE SECOND LIGHT FLASH EMITTED FROM A SPARK-GENERATED BUBBLE OSCILLATING IN WATER
        date: 2020-07-01
       words: 7224
      flesch: 69
     summary: Generated bubbles can be described by two parameters. 20 25 30 35 40 45 50 55 60 0 2 4 6 8 10 12 14 16 18 20 R M1 [ mm ] d 1 2 [ µs ] Figure 4. Variation of the time distance between the first and second optical pulses d12 with bubble size RM 1. 272 vol.
    keywords: acoustic; acta; bubble; bubble size; cavitation; correlation; d12; data; difference; discharge; distance; emission; example; experiments; figure; flashes; following; intensity; journal; laser; light; light pulses; maximum; observed; optical; optical pulse; oscillation; p1(t; parameters; physical; physics; place; plasma; polytechnica; present; pressure; process; processes; pulse; pzp1; record; responsible; review; second; second light; single; size; small; spark; time; tp1; tu1; u2(t; value; variation; vokurka; water; waves; width; work
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        item: #901 of 1243
          id: ap-582
      author: Green, G.; Mamtani, G.
       title: An Integrated Decision Making Model for Evaluation of Concept Design
        date: 2004-01-03
       words: 2540
      flesch: 64
     summary: 62 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 44 No. 3/2004 An Integrated Decision Making Model for Evaluation of Concept Design G. Green, G. Mamtani The Conceptual design phase generates various design concepts and these are then evaluated in order to identify the ‘Best’ concept. One of them includes application of Fuzzy Logic as a tool to evaluate design concepts against criteria.
    keywords: application; best; concepts; crisp; criteria; decision; design; evaluation; fig; final; fuzzy; generation; good; high; integrated; linguistic; logic; matrix; mileage; model; phase; process; product; rules; sets; values
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        item: #902 of 1243
          id: ap-5826
      author: Urban, Jan; Rychtáriková, Renata; Macháček, Petr; Štys, Dalibor; Urbanová, Pavla; Císař, Petr
       title: OPTIMIZATION OF COMPUTATIONAL BURDEN OF THE POINT INFORMATION GAIN
        date: 2019-12-31
       words: 5382
      flesch: 73
     summary: = H − H (i) (7) refers then to a difference between the entropy of the two histograms and thus also to the difference be- tween the entropy of two images – with and without the investigated pixel Φ(x,y) of the intensity i. Recall that the histograms P and P(i) were normalized and, therefore, the difference Γ(i) is usually a small number. = H − H (i), Γ(i) = ln(WH)
    keywords: 2d−1∑; = =; = −; acta; algorithm; background; calculation; column; computation; contribution; cross; difference; entropy; function; gain; gpu; h(x; histogram; image; information; intensity; investigated; ln(nj; ln(nj(x; ln(wh; n(y; ni(y; optimization; p(i; pig; pixel; point; polytechnica; position; probability; processing; row; rychtáriková; shannon; software; total; urban; value; vol; γ(i; γ(i)(x; φ(x; ∑i−1; −ej
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        item: #903 of 1243
          id: ap-584
      author: Chudý, P.; Fiľakovský, K.; Friedl, J.
       title: Aerodynamic Analysis of Turboprop Engine Air Intake
        date: 2004-01-03
       words: 2226
      flesch: 59
     summary: Five geometric varia- tions were computed, as follows: � Original air intake, � Air intake +10 %, � Air intake � 10%, � Air intake with prismatic insert, � Optimised air intake. The main purpose is to estimate the air intake fluid characteristics of different air intake geometries.
    keywords: air; air intake; case; certain; cfd; chamber; channel; czech; domain; engine; external; fig; flow; geometric; geometry; insert; intake; internal; loss; mesh; model; nacelle; original; pressure; prismatic; results; sections; separation; set; streamlines; total; turboprop; turbulence; university; value; vol
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        item: #904 of 1243
          id: ap-586
      author: Jurun, E.; Veza, I.
       title: Developing Model for Supply Chain Management - the Case of Croatia
        date: 2004-01-03
       words: 3683
      flesch: 52
     summary: i ij, � � �1 , 1 � �j m i( ) (11) where: pij is the unit price for level j, bij are the quantities at which price breaks occur, m(i) is the number of quantity ranges in vendor is price schedule. (12) Since xij can be nonzero only if b x bi j ij ij, � � �1 , (13) it follows that the objective function becomes p x p
    keywords: acta; breaks; buyer; chain; chain management; concept; constraint; costs; croatia; customer; delivery; distribution; enterprises; entire; goods; house; http://ctn.cvut.cz/ap/; information; level; main; management; markets; mathematical; model; network; new; number; objective; order; paper; planned; planning; polytechnica; price; process; production; publishing; purchasing; quality; quantity; reference; requirements; scm; scor; selection; strategic; supplier; supply; supply chain; time; total; university; vol
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        item: #905 of 1243
          id: ap-588
      author: Farouk, A.; Lamboj, L.; Kos, J.
       title: A Numerical Model to Predict Matric Suction Inside Unsaturated Soils
        date: 2004-01-04
       words: 4572
      flesch: 57
     summary: Matric suction in such a system arises from capillary actions attributed to interactions between air-water menisci (which are generated from the surface tension phenomenon), and soil particles. In fact, when the contractile skin spans between col- lections of soil particles, dependent on the geometry, it is necessary for continuity that the interface has curvature both concave and convex to the air phase [8].
    keywords: air; angle; capillary; case; characteristic; contact; content; contractile; curve; distribution; effect; equal; fig; fredlund; grain; matric; matric suction; menisci; meniscus; model; numerical; packing; particles; points; pore; pressure; simple; simulation; size; skin; soil; spheres; spherical; suction; surface; swcc; tension; unsaturated; vol; volume; water; water content
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        item: #906 of 1243
          id: ap-5897
      author: Caalim, Jonathan; Demegillo, Shiela
       title: BETA CANTOR SERIES EXPANSION AND ADMISSIBLE SEQUENCES
        date: 2020-07-01
       words: 7598
      flesch: 92
     summary: − γ /∈ Z for all n ∈ N (e.g. β may be taken to be transcendental over Q and γ ∈ Q). In particular, we show that for a fix γ ∈ R and a sequence B of real number bases, every element of the interval [γ,γ + 1) has a beta Cantor series expansion with respect to B where the digits are integers in some alphabet A(B).
    keywords: a(b; a1,a2; acta; admissibility; admissible; b[i; b[k; b[m; b[n; base; beta; c1,c2; cantor; case; ck+1; corollary; d(b; d1,d2; d∗(α; expansion; following; i=1; integer; lemma; lexicographic; map; negative; note; n∪{0; positive; proof; proposition; real; restriction; satisfies; section; sequence; series; transformation; − �; −γc
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        item: #907 of 1243
          id: ap-590
      author: Farouk, A.; Lamboj, L.; Kos, J.
       title: Influence of Matric Suction on the Shear Strength Behaviour of Unsaturated Sand
        date: 2004-01-04
       words: 3653
      flesch: 58
     summary: For example, Fig. 3 shows that the shear strength of sample GUS1-50 is roughly 1.25 times that of saturated sample GS1, which indicates that an increase in soil suction leads to an increase in shear strength. The main goal of testing this group was to evaluate the effective shear strength parameters, c’ and �‘, and to have the ability to compare the behaviour of satu- rated samples with that of unsaturated samples.
    keywords: air; behaviour; conditions; confining; consolidation; constant; content; czech; fig; group; initial; kpa; matric; matric suction; net; pore; pressure; process; publishing; samples; sand; shear; shearing; soils; stage; strength; stress; suction; technical; tested; testing; tests; triaxial; university; unsaturated; vol; water
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        item: #908 of 1243
          id: ap-5918
      author: Haouam, Ilyas
       title: ANALYTICAL SOLUTION OF (2+1) DIMENSIONAL DIRAC EQUATION IN TIME-DEPENDENT NONCOMMUTATIVE PHASE-SPACE
        date: 2020-04-30
       words: 5983
      flesch: 69
     summary: The above equation is the relation of the ordinary NCG except that the NC structure constants are considered as exponentially increasing functions with the evolution of time. Deriving Eq.(48) in time, we find ∂I ∂t |φ(λ,k)〉 + I ∂ ∂t |φ(λ,k)〉 = ∂λ ∂t |φ(λ,k)〉 + λ ∂ ∂t |φ(λ,k)〉 , (50) we apply Eq.(14) over the eigenfunctions |φ(λ,k)〉, we have i ∂I ∂t |φ(λ,k)〉 + IHnc |φ(λ,k)〉−Hncλ |φ(λ,k)〉 = 0, (51) the scalar product of Eq.(51) by 〈 φ(λ ′ ,k ′ ) ∣∣∣ is i 〈 φ(λ ′ ,k ′ ) ∣∣∣∣∂I∂t ∣∣∣∣φ(λ,k) 〉 + ( λ ′ −λ )〈 φ(λ ′ ,k ′ ) |Hnc|φ(λ,k) 〉 = 0, (52) which implies 〈 φ(λ ′ ,k ′ ) ∣∣∣∣∂I∂t ∣∣∣∣φ(λ,k) 〉 = 0, (53) the scalar product of Eq.(50) by 〈 φ(λ ′ ,k ′ )
    keywords: acta; analytical; bopp; dependent; dimensional; dirac; dirac equation; doi:10.1103; effect; eigenstates; electric; equation; field; functions; geometry; graphene; haouam; harmonic; hnc; i(t; ilyas; invariant; journal; landau; letters; levels; lewis; linear; magnetic; mathematical; matrices; matrix; mechanics; method; momentum; nc k; ncg; noncommutative; operators; parameters; phase; physical; physical review; physics; polytechnica; potential; product; quantum; real; relations; review; riesenfeld; shift; solution; space; spin; system; theory; time; wave; xncj; |φ(λ; ∂ξ2; −f1; −f2; ∣∣ψ̄; ∣∣∣
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        item: #909 of 1243
          id: ap-592
      author: Ficker, T.
       title: Multifractal Image Analysis of Electrostatic Surface Microdischarges
        date: 2004-01-04
       words: 2672
      flesch: 68
     summary: pq i q i I ( , ) ( )� �� � � 1 , p n N i i( )� � � � � � � , pi i I ( )� � � � 1 1 , q �� �( , ) . Many followers appeared in the field of computer simula- tions of discharge channel structures
    keywords: analysis; appl; arrangement; channel; czech; dielectric; dimension; discharges; electret; electrode; electrostatic; fig; figures; fractal; grid; jensen; lett; lichtenberg; multifractal; niemeyer; phys; plane; procaccia; ramification; rev; separation; streamers; structure; surface; value; vol; voltage; wiesmann
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        item: #910 of 1243
          id: ap-594
      author: Ficker, T.; Kapička, V.; Macur, J.; Slavíček, P.; Benešovský, P.
       title: Fractality of Electrostatic Microdischarges on the Surface of Polymers
        date: 2004-01-04
       words: 2455
      flesch: 62
     summary: This hypothesis has proved to be sound and is illustrated by Figs. 4 – 6 in which the increasing linear dependence D aU b� � is well recognisable. These visible tracks are called Lichtenberg figures and have often been used to study gaseous discharges on the surface of dielectrics
    keywords: analysis; czech; dependence; dimension; electret; electric; electrode; electrostatic; figures; forming; fractal; grid; high; house; http://ctn.cvut.cz/ap/; lichtenberg; long; microdischarges; multifractal; pet; phys; polymeric; polytechnica; publishing; states; surface; technical; times; university; vol; voltages
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        item: #911 of 1243
          id: ap-596
      author: Jiroušek, P.
       title: Programming a Logical Control Method by a Parallel Process
        date: 2004-01-04
       words: 2652
      flesch: 57
     summary: There exist higher level of logical control program systems such as STEP 5 and GRAFCET. Unlike other program systems, for instance systems support- ing the GRAFCET, verification is performed in graphical form.
    keywords: acta; actions; address; compiler; condition; control; czech; development; example; functions; grafcet; higher; house; http://ctn.cvut.cz/ap/; language; logical; means; parallel; parallelism; polytechnica; primas; problem; processes; program; publishing; real; running; set; system; tasks; technical; time; tuning; university; use; vol
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        item: #912 of 1243
          id: ap-5960
      author: Sunu, Putu Wijaya; Anakottapary, Daud Simon; Suarta, I Made; Santosa, I Dewa Made Cipta; Suarsana, Ketut
       title: HEAT TRANSFER ENHANCEMENT AND FRICTION IN DOUBLE PIPE HEAT EXCHANGER WITH VARIOUS NUMBER OF LONGITUDINAL GROOVES
        date: 2020-12-31
       words: 5743
      flesch: 58
     summary: However, up to now, there have been few investigations and applications of longitudinal grooves in relation to heat transfer associated with friction from the annulus of a heat exchanger. The present investigation examined the effects of longitudinal grooves in a double pipe heat exchanger on the characteristics of heat transfer and friction.
    keywords: acta; annulus; capacity; channel; characteristics; cold; compensation; data; diameter; doi:10.1016; double; drop; effectiveness; engineering; enhancement; equation; exchanger; experimental; factor; figure; flow; fluid; friction; friction factor; grooved annulus; grooves; heat; heat exchanger; heat transfer; higher; hot; hydraulic; increase; international; journal; longitudinal; longitudinal grooves; mass; ntu; number; performance; pipe; pipe heat; polytechnica; pressure; rate; reynolds; science; section; smooth; smooth annulus; study; sunu; surface; temperature; test; thermal; transfer; transfer enhancement; tube; value; water
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        item: #913 of 1243
          id: ap-5963
      author: Castro Silva, Janaina Oliveira; Maia, Cristiana Brasil
       title: OPTIMIZATION OF A SMALL SOLAR CHIMNEY
        date: 2020-07-01
       words: 5996
      flesch: 51
     summary: Exergy efficiency and solar chimney efficiency were determined, on an hourly basis, for a one-year period. Keywords: Solar chimney, optimization, conjugate directions, variable metric. 1.
    keywords: acta; airflow; ambient; analysis; average; brasil; castro; chimney; chimney efficiency; chimney power; collector; conjugate; conversion; desalination; developed; diameter; dimensions; doi:10.1016; efficiency; energy; engineering; exergy efficiency; experimental; figure; function; generation; geometric; geometry; ground; heat; height; higher; influence; inlet; literature; maia; management; manzanares; mass; mathematical; methods; model; monthly; numerical; objective; oliveira; optimization; outlet; output; parameters; performance; plant; polytechnica; power; prototype; radiation; rate; reference; renewable; results; silva; small; solar; solar chimney; solar collector; solar energy; solar radiation; study; surface; sustainable; system; temperature; values; variable; velocity; year
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        item: #914 of 1243
          id: ap-598
      author: Audy, M.; Šejnoha, M.
       title: Effect of Boundary Constraints in the Formulation of the Partition of Unity Method: One-dimensional Setting
        date: 2004-01-04
       words: 5168
      flesch: 64
     summary: 1. �u represents a portion of � with prescribed displacements u while tractions t are prescribed on � �� � � �t u t d� � � 0 . 1: Body � crossed by discontinuity �d ity surface �d divides the body into two subdomains, � � and � � (� � �� � �� ).
    keywords: b b; b k; boundary; configuration; constraints; d b; d �; degrees; dimensional; discontinuity; discontinuous; displacement; element; f k; field; fig; form; freedom; k d; k h; k k; k �; matrix; node; partition; problem; results; solution; standard; stiffness; t d; unity; university; vol; � n; � u
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        item: #915 of 1243
          id: ap-5981
      author: Schmidt, Jaroslav; Janda, Tomáš; Zemanová, Alena; Zeman, Jan; Šejnoha, Michal
       title: NEWMARK ALGORITHM FOR DYNAMIC ANALYSIS WITH MAXWELL CHAIN MODEL
        date: 2020-12-31
       words: 5898
      flesch: 64
     summary: The relative errors were calculated according to ||r∆t − rref∆t||2/||r ref ∆t||2, where r∆t stores displacements of all time instants for time step ∆t, rref∆t the reference solution of odeint at the same times, and ‖•‖ denotes the Euclidean norm. Top, center, and bottom graphs show trajectories for time steps ∆t = 1.0 s, ∆t = 0.5 s, and ∆t = 0.2 s respectively.
    keywords: acceleration; acta; algorithm; analysis; cell; chain; conditions; corresponding; discrete; discretization; displacement; dissipation; doi:10.1016; dynamic; energy; engineering; equations; evolution; external; f(t; figure; forces; form; fracture; glass; initial; integrator; international; interval; janda; journal; lagrange; laminated; mass; materials; maxwell; mechanics; method; model; motion; newmark; numerical; p(t; p=1; polytechnica; problem; quantities; reference; response; ri+1; r̈i; r̈i+1; scheme; schmidt; section; spring; step; structures; system; time; time t; value; variational; velocity; viscoelastic; vol; work; zemanová
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        item: #916 of 1243
          id: ap-5987
      author: Durdán, Milan; Terpák, Ján; Kačur, Ján; Laciak, Marek; Flegner, Patrik
       title: MODELING OF MATERIAL BALANCE FROM THE EXPERIMENTAL UCG
        date: 2020-11-02
       words: 5651
      flesch: 60
     summary: Keywords: Underground coal gasification, material balance, atoms, ex-situ reactors, losses. doi:10.1016/j.pecs.2012.09.004. [2] A. Uppal, A. Bhatti, E. Aamir, et al. Control oriented modeling and optimization of one dimensional packed bed model of underground coal gasification.
    keywords: acta; agent; air; analysis; ash; atomic; atoms; balance; cavity; chemical; coal; coal gasification; coal seam; components; composition; condensate; control; durdán; element; energy; equation; experiment; figure; flow; gasification; gasification process; gasified; general; individual; input; laboratory; losses; mass; mass balance; material; material balance; mathematical; measured; model; modeling; output; oxygen; paper; polytechnica; process; product; production; reactions; reactor; results; scheme; seam; second; situ; syngas; table; temperature; total; ucg; ucg process; unburned; unburned coal; underground; underground coal; value
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        item: #917 of 1243
          id: ap-5994
      author: Abdullah, Hikmat N.; Dawood, Zinah O.; Abdelkareem, Ammar E.; Abed, Hadeel S.
       title: COMPLEXITY REDUCTION OF CYCLOSTATIONARY SENSING TECHNIQUE USING IMPROVED HYBRID SENSING METHOD
        date: 2020-09-01
       words: 5267
      flesch: 52
     summary: Non-cooperative scenario Figure 2 shows the performance curves of a number of samples versus the computational complexity ra- tio in cyclostationary of hybrid proposed methods compared with the traditional method. The price we pay for the complexity reduction is a slight loss in Pd as compared with the traditional method, also, it can be seen that although the proposed method using the SDFT hasa greater reduction in the computational complexity than the other proposed methods that use the FFT, it also gives a good detection performance, especially at low values of Eb/N0, since the SDFT has a higher accuracy than the FFT and the performance of other methods becomes the same as the method that uses the SDFT at Eb/N0 equals 6 dB. As shown in the figure, when Eb/N0 equals 0 dB, Pd is decreased by 20 % and 10 % using proposed methods that use the FFT and SDFT respectively, as compared with the hybrid method in [4] and increased by 30 % and 40 % respectively, as compared with the energy de- tector.
    keywords: autocorrelation; channel; cognitive; complexity; computational; computational complexity; cooperative; curves; cyclic; cyclostationary; cyclostationary detector; detection; detection performance; detector; energy; energy detector; fading; fft; figure; frequency; hybrid; hybrid method; information; low; method; multipath; number; o(ns; performance; probability; process; proposed; radio; reduction; results; samples; scenario; sdft; sensing; signal; spectrum; technique; threshold; traditional; traditional method; values
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        item: #918 of 1243
          id: ap-600
      author: Kratěna, J.; Fořt, I.
       title: Study of the Discharge Stream from a Standard Rushton turbine impeller
        date: 2004-01-04
       words: 3694
      flesch: 59
     summary: th b t b av p t p av, , , , , ,( ) ( )� �� �2 2 . No. 4/2004 Fig. 6: Three dimensional view of the flat bottomed agitated system with standard Rushton turbine impeller and radial baffles (T � 300 mm, H/T � 1, D/T � 1/3, h/T � 0.33, 0.48, b/T � 0.1, N � 6.7 s�1) Fig. 7: Side view (coordinates r�z) of the half of investigated system with chosen grid 4 Numerical simulation of turbulent liquid flow in a system with a standard Rushton impeller Reynolds averaged Navier-Stokes equations (RANS) to- gether with the Multiple Reference Frame (MRF) and standard k-� model predictions of steady state flow have been used via Fluent 4.5 commercial software with the MIX SIM 1.7 module [13].
    keywords: agitated; angular; baffle; component; coordinate; cylindrical; czech; dimensionless; discharge; discharge stream; experimental; fig; flow; impeller; impeller discharge; liquid; mean; momentum; num; radial; region; results; rushton; standard; stream; system; tangential; target; technical; turbine; turbulent; university; value; velocity; vessel; vol
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        item: #919 of 1243
          id: ap-6003
      author: Loskot, Jan; Zubko, Maciej; Janikowski, Zbigniew
       title: ANALYSES OF WASTE PRODUCTS OBTAINED BY LASER CUTTING OF AW-3103 ALUMINIUM ALLOY
        date: 2020-12-31
       words: 4317
      flesch: 61
     summary: In this research, we analysed waste particles gener- ated during laser cutting of a widely used AW-3103 aluminium alloy. Statistical characteristics of waste powder particles.
    keywords: acta; alloy; aluminium; analysis; assist; aw-3103; beam; characteristics; composition; cutting; diameter; diffraction; dross; electron; engineering; feret; figure; formation; gas; health; impact; journal; laser; laser cutting; liquid; material; mean; measurements; metallurgy; microparticles; microscopy; nanoparticles; observed; parameters; particles; polytechnica; powder; process; processing; products; ray; research; results; shape; silicon; size; stainless; steel; surface; thicker; thickness; thinner; tube; waste; waste powder
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        item: #920 of 1243
          id: ap-602
      author: Brož, J.; Fořt, I.; Sperling, R.; Jambere, S.; Heiser, M.; Rieger, F.
       title: Pumping Capacity of Pitched Blade Impellers in a Tall Vessel with a Draught Tube
        date: 2004-01-04
       words: 3995
      flesch: 62
     summary: 1: Geometry of the pilot plant tall vessel with a draught tube (the 1st series of experiments); 1 – vessel, 2 – draught tube, 3 – baffle, 4 – impeller (H � 600 mm, T � 400 mm, L � 540 mm, C � 465 mm, DT � 80 mm, D � 70 mm, l � 70 mm, b � 7 mm, R � 400 mm, r � 40 mm) 45° h d Fig. 2: Sketch of pitched blade impellers with three or six blades – Czech Standard CVS 691020: a) nB � 3 : � � 35°, 45°, b ) nB � 6, � � 35°, 45°; h/D � 0.2) 4 31 2 Fig. 3: Geometry of the pilot plant tall vessel with a draught tube (the 2nd series of experiments); 1 – vessel, 2 – draught tube, 3 – baffle, 4 – impeller (H � 470 mm, T � 400 mm, L � 350 mm, C � 400 mm, DT � 160 mm, D � 140 mm, l � 45 mm, b � 15 mm, R � 400 mm, r � 40 mm) (7) the average axial component of the mean velocity over the slot depends on the height of the slot w Q D H const H H DB p T T T T T� � � � . , .0 25 .
    keywords: agitated; angle; axial; blade; capacity; cross; czech; dependence; diameter; dished; draught; draught tube; edge; efficiency; experiments; fig; flow; impeller; liquid; mean; measured; number; pbt; pitch; power; pumping; quantity; rate; ratio; series; slot; system; tube; velocity; vessel; vol
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        item: #921 of 1243
          id: ap-604
      author: Abdelaziz, T. H. S.; Valášek, M.
       title: Eigenstructure Assignment by State-derivative and Partial Output-derivative Feedback for Linear Time-invariant Control Systems
        date: 2004-01-04
       words: 6551
      flesch: 69
     summary: A B I Bn n� � �, ,� �2 � � � � � � � � � � � � � � � � � � � � � �2 2 1 0 0 4 0 1 1 0 1 0 0 1 0 1 2 2� �� � �� � a b b3 � � � � �, taking � �v12 1 � c d, T, leads to � ��� � 2 2 2 2 3 4� � � � � � �c d a b c d b d, , , T. Then, the gain matrix equation can be written as K � � � � � � � � � � � � � � � � � � � � � a c b d a b a b c d b b d 2 2 2 2 2 4 3 4 . I BK I BKv v v vij k i n ij k n ij k ij� � � � � � � ( ) ( ) ,1 0 0 .
    keywords: assignment; case; closed; conditions; control; controllable; derivative; derivative feedback; eigenstructure; eigenvalues; eigenvectors; equation; feedback; gain; generalized; j �; k �; linear; loop; matrix; output; parametric; problem; qi �; rank; right; set; solution; state; system; vol; wv �; � bfc; � c; � det; � n; � rn×n; � v; � �
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        item: #922 of 1243
          id: ap-6049
      author: Kunz, Jan; Beneš, Petr
       title: VERSATILE CHIRP SINE GENERATOR ON FIXED-POINT FPGA
        date: 2020-12-31
       words: 4560
      flesch: 59
     summary: Conclusion This paper presents an universal point-to-point method of chirp sine signal generation on a fixed- point FPGA. Nowadays, linear and logarithmic chirp sine signals can be generated very easily using, for example, a direct digital synthesis, a voltage controlled oscillator, a look-up table or a phase generation [1, 3, 4].
    keywords: actual; arithmetic; bit; calculated; calculation; chirp; chirp signal; chirp sine; dec; difference; error; f(n; fig; figure; fpga; frequencies; frequency; fstart; fstop; generation; implementation; integration; khz; limitations; linear; logarithmic; method; necessary; number; parameters; phase; point; possible; previous; resolution; result; rounding; sampling; signal; sine; sine signal; speed; sweep; time; versatile; vibration; ϕ(n
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        item: #923 of 1243
          id: ap-606
      author: Matz, V.; Kreidl, M.; Šmíd, R.
       title: Signal-to-Noise Ratio Improvement based on the Discrete Wavelet Transform in Ultrasonic Defectoscopy
        date: 2004-01-04
       words: 2380
      flesch: 60
     summary: An important requirement on ultrasonic signal filtering is zero-time shift, because the position of ultrasonic echoes is essential. This is fulfilled for most ultrasonic signals.
    keywords: acta; amplitude; coefficients; czech; decomposition; detailed; discrete; dwt; echo; echoes; fault; fig; filtering; house; http://ctn.cvut.cz/ap/; material; method; mother; noise; polytechnica; publishing; ratio; results; signal; technical; thresholding; transform; ultrasonic; university; value; vol; wall; wavelet
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        item: #924 of 1243
          id: ap-6069
      author: Fučík, Radek; Solovský, Jakub; Plampin, Michelle R.; Wu, Hao; Mikyška, Jiří; Illangasekare, Tissa H.
       title: COMPUTATIONAL METHODOLOGY TO ANALYZE THE EFFECT OF MASS TRANSFER RATE ON ATTENUATION OF LEAKED CARBON DIOXIDE IN SHALLOW AQUIFERS
        date: 2021-02-10
       words: 5898
      flesch: 61
     summary: The average temperatures in the static case and background flow experiments were 37◦C and 26◦C, respectively. How- ever, numerical models have not yet been able to fully explain all of the observations from the experimental studies, particularly of those that occur during 2D flow under the influence of background water flow.
    keywords: acta; attenuation; background; background flow; case; co2; computational; constant; data; different; dissolution; doi:10.1016; element; equilibrium; evolution; experimental; figure; flow; form; fraction; fučík; gas; granusil; hand; injection; kinetic; mass; mass transfer; media; mesh; method; methodology; model; modeling; multiphase; non; numerical; permeability; phase; plampin; polytechnica; porous; port; pressure; processes; properties; results; right; s g; saturation; scale; shallow; simulations; solovský; static; study; s−1; table; tank; time; transfer; transport; water
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        item: #925 of 1243
          id: ap-6075
      author: Oberhuber, Tomáš; Klinkovský, Jakub; Fučík, Radek
       title: TNL: NUMERICAL LIBRARY FOR MODERN PARALLEL ARCHITECTURES
        date: 2021-02-10
       words: 8105
      flesch: 73
     summary: The library offers an abstract layer for accessing these architectures via unified interface tailored for easy and fast development of high-performance algorithms and numerical solvers. Conclusion We have presented Template Numerical Library, TNL, for easy development of numerical solvers on modern parallel architectures.
    keywords: acta; algorithms; architectures; array; best; bold; boost; c++; cores; cores time; cpu; cuda; data; device; discretization; dofs; eff; efficiency; equation; explicit; face; figure; format; gpu; gpus; grid; hand; heat; implicit; interface; libraries; library; linear; matrices; matrix; memory; mesh; method; modern; number; numerical; oberhuber; parallel; parameters; performance; polytechnica; problem; row; scalability; semi; set; size; solver; sparse; speed; structures; system; table; template; threads; time; tnl; turbo; type; vertexes; weak; −y2
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        item: #926 of 1243
          id: ap-608
      author: Bažant, Z. P.; Yu, Q.
       title: Size Effect in Fracture of Concrete Specimens and Structures: New Problems and Progress
        date: 2004-01-05
       words: 7184
      flesch: 66
     summary: As mentioned by Bažant (1996) as well as Hu and Wittmann, the consequence of these experimental observations is that: G a D a P u x x GF F D ( ) ( )� � � � � � � 1 0 0 0 d d� , (1) where GF � average fracture energy in the ligament (Fig. 1b), D � specimen size (Fig. 1a), a0 � notch depth, P � load, u � load-point deflection, � (x) � local fracture energy as a function of coordinate x along the ligament (Fig. 1a left), G w xF � � � � � �d 0 �( ) value at points x remote from the boundary ( � area under the complete �(w) diagram, Fig. 1c), � � cohesive (crack-bridging) stress, and w � crack opening � � separation of crack faces. (11), which is of course valid only for large enough notches penetrating through the boundary layer of concrete, has been derived by asymptotic matching of the following asymptotic conditions: 1) for 0, the classical size effect law � �N D D� � � 0 0 1 21( ) must be recovered; 2) for D l0 0� , there must be no size effect; 3) for D l0 � �, Eqs.
    keywords: 6/2004; acta; analysis; angle; area; asymptotic; bažant; beams; boundary; cohesive; concrete; crack; curve; czech; data; different; duan; effect; end; energy; failure; fig; formula; fpz; fracture; house; http://ctn.cvut.cz/ap/; initiation; large; law; layer; length; ligament; log; mechanics; method; model; notch; notches; polytechnica; process; publishing; quasibrittle; shear; size; size effect; small; softening; specimens; strength; stress; structures; technical; terms; university; variation; vol; wittmann; zone; � n; � �
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        item: #927 of 1243
          id: ap-6080
      author: Sváček, Petr
       title: NUMERICAL SOLUTION OF FLUID-STRUCTURE INTERACTION PROBLEMS WITH CONSIDERING OF CONTACTS
        date: 2021-02-10
       words: 5785
      flesch: 65
     summary: |tn+1 ≈ M(U,V ) −LM (V ) (16) for U = (u,p) := (un+1,pn+1), V = (z,q) and with M(U,V ) = 3 2∆t ( un+1,z ) Ωtn+1 , (17) LM (V ) = 2 ∆t (un,z)Ωtn − 1 2∆t ( un−1,z ) +∇q and δK, τK are suitably chosen stabilization parameters, see e.g. The stabilized discrete formulation then reads: Find U = (u,p) ∈ Wh such that aS(U; U,V ) = LS(U; V ) (21) holds for any test function V = (z,q) ∈ X h ×Qh, where aS(U; U,V ) = a(U; U,V )
    keywords: acta; aid; ale; approximation; boundary; computational; condition; configuration; considered; contact; convergence; derivative; discrete; discretization; domain; element; equations; figure; finite; flow; fluid; folds; forces; form; formulation; functions; hertz; impact; instant; mapping; matrix; media; method; model; navier; numerical; order; phonation; polytechnica; porous; prescribed; pressure; problem; projection; reference; results; simplified; solution; stabilization; stabilized; stokes; structure; system; terms; test; time; velocity; vocal; γwt
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        item: #928 of 1243
          id: ap-6099
      author: Vocetka, Michal; Suder, Jiří; Huczala, Daniel
       title: THE USE OF THE TWO-HANDED COLLABORATIVE ROBOT IN NON-COLLABORATIVE APPLICATION
        date: 2020-04-30
       words: 3490
      flesch: 45
     summary: Keywords: Collaborative robot, YuMi, industrial robot, industrial automation, semi-collaborativ. A pair of IRB120. 155 M. Vocetka, J. Suder, D. Huczala Acta Polytechnica YuMi would probably not be able to withstand the comparison with industrial robots.
    keywords: abb; acta; analysis; applications; automation; axis; camera; capacity; case; clutch; cobots; collaborative; comparison; control; cycle; design; fem; figure; gripper; handed; housings; https://new.abb.com/products/robotics/cs/prumyslove-roboty/yumi?utm_source=google&utm_campaign=se_roboty_roboty&utm_medium=cpc&utm_term=roboty&utm_content=robot-yumi&gclid=eaiaiqobchmitqtrrj-o4qivqzztch06bayreaayasaaegjvovd_bwe; human; industrial; jaw; line; load; manipulator; march; motor; operator; optimization; polytechnica; possible; press; production; results; robot; safety; small; solution; space; specific; station; time; traditional; use; weight; work; yumi
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        item: #929 of 1243
          id: ap-610
      author: Jirásek, M.
       title: Nonlocal Theories in Continuum Mechanics
        date: 2004-01-05
       words: 16537
      flesch: 54
     summary: Taking all this into account and substituting the rate form of (67) into (69), we get the linear differential equation with constant coefficients, ( ) � � �*H Hlp� � �� �� � � � �0 2 . The circular frequency correspond- ing to wave number k is thus � � � � � � 2 1 2 1 2 2 K M ika K M ka K M ka ( cosh ) ( cos ) sin .
    keywords: 6/2004; acta; bar; bažant; behavior; body; boundary; case; certain; characteristic; conditions; continuum; corresponding; curve; czech; d �; damage; density; dependence; diagram; different; differential; dimensional; discrete; dispersion; displacement; distribution; effect; elastic; elasticity; energy; engineering; enriched; enrichments; equation; example; explicit; field; fig; finite; fish; form; fourier; frequency; function; general; gradient; hardening; harmonic; higher; homogeneous; house; http://ctn.cvut.cz/ap/; image �; integral; internal; journal; k �; law; layer; lcrit �; leads; length; limit; linear; loading; localization; long; mass; material; mechanics; model; modulus; nonlocal; numbers; numerical; order; parameter; phase; point; polytechnica; positive; problem; propagation; publishing; r �; real; region; remains; results; scale; section; shear; short; size; small; softening; solution; spatial; specimen; spring; standard; strain; strength; stress; structure; technical; terms; theories; theory; thickness; type; uniform; university; value; variable �; velocity; vol; wave; wavelength; weight; � /a; � f; � y; � �
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        item: #930 of 1243
          id: ap-6103
      author: Maharaj, Adhir; Andriopoulos, Kostis; Leach, Peter
       title: PROPERTIES OF A DIFFERENTIAL SEQUENCE BASED UPON THE KUMMER-SCHWARZ EQUATION
        date: 2020-11-02
       words: 4344
      flesch: 65
     summary: As our pri- mary interest is in differential equations integrable in the sense of Poincaré (iewith solutions which are analytically away from isolated polelike singularities) we are disappointed with the results. However, it has been shown [6, 7] that the operator, D + y, generates a sequence of differential equations based upon the Riccati equation, which has very satisfying properties in terms of their singularity characteristics and algebras.
    keywords: -1 -1; 2u′2; analysis; andriopoulos; bis; complete; differential; elements; equation; euler; evolution; exponents; generator; kummer; leach; mathematical; operator; order; properties; recursion; resonances; results; schwarz; sequence; series; singularity; solution; symmetries; symmetry; terms
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        item: #931 of 1243
          id: ap-612
      author: Askes, H.; Simone, A.; Sluys, L. J.
       title: Modelling of Size Effect with Regularised Continua
        date: 2004-01-05
       words: 3923
      flesch: 56
     summary: Upon loading, damage grows according to � � � � � �� � � �1 i iexp( ( )) if � �� i (5) in which � is a material parameter that sets the slope of the stress-strain relation in the softening regime. The stress-strain relation is written as � �� �( )1 � C (1) where � and � contain the components of stresses and strains, C contains the elastic moduli and � is a scalar damage vari- able.
    keywords: acta; beams; constant; continuum; damage; dimensions; effect; engineering; fig; fractal; function; gradient; journal; large; law; length; material; mechanics; model; multi; nonlocal; notch; numerical; proportional; range; scale; scaling; size; specimens; strain; strength; stress; structural; university; unnotched; viscoplastic; vol
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        item: #932 of 1243
          id: ap-6125
      author: Segeth, Karel
       title: MULTIVARIATE INTERPOLATION USING POLYHARMONIC SPLINES
        date: 2021-02-10
       words: 4979
      flesch: 67
     summary: The conclusion of the present paper is more advanced, it shows that for interpola- tion it is possible to use polyharmonic functions of different orders m that minimize different norms of the interpolant u, i.e. the L2 norm of the (m + They are often used as basis functions for interpolation as well as approximation.
    keywords: approximation; basis; complex; data; definition; derivative; equation; example; formula; function; general; generating; interpolant; interpolation; linear; multiindex; nonnegative; norm; number; order; polyharmonic; problem; properties; r(x; radial; sec; set; smooth; space; spline; system; theorem; trend; values; z(x; |α|
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        item: #933 of 1243
          id: ap-6132
      author: Rustam; Gunawan, Agus Yodi; Kresnowati, Made Tri Ari Penia
       title: ARTIFICIAL NEURAL NETWORK APPROACH FOR THE IDENTIFICATION OF CLOVE BUDS ORIGIN BASED ON METABOLITES COMPOSITION
        date: 2020-11-02
       words: 4945
      flesch: 61
     summary: Therefore, this study implements artificial neural networks as pat- tern recognition in clove buds data sets. Materials This study uses clove buds data sets obtained from Kresnowati et al.
    keywords: accuracy; acta; algorithm; approach; architecture; aroma; artificial; backpropagation; buds; case; clove; clove buds; composition; data; data sets; doi:10.1016; equation; error; figure; flavour; function; hidden; hidden layers; identification; input; layer; learning; metabolites; mse; network; neural; neurons; number; origin; output; pattern; percentage; polytechnica; recognition; resilient; resilient propagation; results; sets; small; study; table; testing; testing data; training; training testing; t−1; update; value; weight
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        item: #934 of 1243
          id: ap-614
      author: Proft, K. De; Wilde, W. P. De
       title: A Discontinuous Model to Study Fracture of Brittle Materials
        date: 2004-01-05
       words: 5008
      flesch: 65
     summary: 2.3 Governing finite element equations The weak form of the virtual work equation without body forces reads: � � ��� s S S e � � �: d d e� � t (7) where � is taken from the set of admissible displacement vari- ations and Se is the outer surface where external tractions t are applied. i i i iT� � � �� �~ : ~� � �d d 0 (i � 1, … m), (10) where Ti are the traction forces working at the discontinuity �i. To obtain equation (9), the enhanced displacement field, ~u, is assumed to be zero where essential boundary conditions are imposed.
    keywords: applied; case; considered; continuum; crack; deformation; degrees; discontinuity; displacement; elastic; element; energy; engineering; enhanced; equations; experimental; field; fig; finite; fracture; freedom; function; integration; international; journal; load; localization; lvdt; material; mechanics; methods; model; nodes; normal; numerical; partition; path; rate; strain; stress; tensile; tip; unity; university; vol
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        item: #935 of 1243
          id: ap-6142
      author: Kračmar, Stanislav; Neustupa, Jiří
       title: MODELING OF FLOWS THROUGH A CHANNEL BY THE NAVIER–STOKES VARIATIONAL INEQUALITIES
        date: 2021-02-10
       words: 7988
      flesch: 72
     summary: η − 1)u 〉 dt = (α− 1) ∫ t∗ 0 〈 ∂tv ∗ ext, u 〉 dt + α(α− 1) ∫ t∗ 0 〈 ∂tu, u 〉 dt + ∫ t∗+δ t∗ 〈 ∂tv ∗ ext, (η − 1)u 〉 dt + ∫ t∗+δ t∗ 〈 ∂t(ηu), ηu 〉 dt− ∫ ∇u dx ≤ ∫ t∗ 0 〈f,u〉 dt + ∫ t∗ 0 ∫ Γ2 g ·u dS dt + 1 2 ‖u(0)‖22, 1 2 ‖u(t∗)‖22 + ∫ t∗ 0 ν‖∇u‖22 dt + ∫ t∗ 0 ∫ Ω (v∗ext + u) ·∇(v ∗ ext + u) · (v ∗ ext + u) dx dt + ∫ t∗ 0 〈∂tv∗ext,u〉 dt ≤ ∫ t∗ 0 ∫ Ω (v∗ext + u) ·∇(v ∗ ext + u) ·v ∗ ext dx dt + ∫ t∗ 0 ∫ Ω ν∇v∗ext : ∇u dx dt +
    keywords: 0,t; appropriate; approximations; artificial; boundary; c(ξ; case; channel; condition; convex; curl; div; ds dt; dx dt; energy; equation; estimates; existence; ext; flow; function; incompressible; inequality; kct; l2(0,t; navier; neustupa; non; pressure; priori; problem; set; solution; space; steady; stokes; t∗+δ; variational; v∗ext; weak; w−v; ξ‖∇u‖22; ∂tv; ∫ t∗; ≤ ∫
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        item: #936 of 1243
          id: ap-6149
      author: Neustupa, Tomáš; Winter, Ondřej
       title: ON THE SENSITIVITY OF THE NONLINEAR TERM IN THE OUTFLOW BOUNDARY CONDITION
        date: 2021-02-10
       words: 3457
      flesch: 62
     summary: Black, red, blue, and green lines indicate results for prolonged domain (le = 50Di), ξ = 0, ξ = −0.6 and ξ = 0.6, respectively. for ξ = 0,−0.6. −2 0 2 0 0.5 1 y Long ξ = −0.3̄ ξ = −0.5 ξ = −0.6 ξ = 0 −2 0 2 0 0.5 1 y Long ξ = −0.3̄ ξ = −0.5 ξ = −0.6 ξ = 0 Figure 2. u along the boundary Γo, Re = 10, ξ < 0,ξ
    keywords: 50di; artificial; backward; boundary; boundary condition; computational; condition; contours; different; domain; existence; figure; finite; flow; fluid; inflow; inlet; long; long ξ; mathematical; method; n)−; navier; nonlinear; numerical; outflow; pressure; prolonged; results; solution; stokes; term; u =; velocity; volume; weak; −0.3̄; −0.6; −0.6 ξ
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        item: #937 of 1243
          id: ap-616
      author: Krysl, P.
       title: Explicit Time Integrators for Nonlinear Dynamics Derived from the Midpoint Rule
        date: 2004-01-05
       words: 2167
      flesch: 62
     summary: The equation of motion is written in the spatial frame as �� � RT, where �� is the rate of the spatial angular momen- tum, and consequently the equation of motion may be written in integral form as � �� � �( ) exp That algorithm may be recognized as the well-known Verlet (explicit Newmark with � �1 2) � � �� � �t t t� 2 2 * � (Verlet).
    keywords: algorithm; body; dynamics; euler; explicit; lie; midpoint; momentum; order; rigid; rotation; rule; second; skew; symplectic; t t; time; vector; � exp; � p; � t; � �
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        item: #938 of 1243
          id: ap-618
      author: Patzák, B.; Bittnar, Z.
       title: OOFEM – An Object Oriented Framework for Finite Element Analysis
        date: 2004-01-05
       words: 3764
      flesch: 45
     summary: To achieve these requirements in the context of this frame, the following set of fundamental abstract classes is introduced to represent finite elements (Element class), cross section models (CrossSection class), constitutive mod- els (Material class), integration rules (IntegrationRule class), integration points (IntegrationPoint class), interpolation functions (Interpolation class), and material mode specific containers for storing history variables in integration points (MaterialStatus class). Typical implementation of this procedure then consists in a loop over finite element integration points, and computation of the products of these matrices and summa- tion of the contributions.
    keywords: abstract; acta; analysis; base; boundary; class; classes; code; computers; conditions; constitutive; corresponding; cross; czech; design; element; engineering; equations; example; fig; finite; general; history; house; http://ctn.cvut.cz/ap/; implementation; integration; interface; level; material; matrix; methods; model; module; numerical; object; oofem; particular; points; polytechnica; problem; programming; publishing; section; services; software; solution; sparse; specific; structure; technical; university; vol
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        item: #939 of 1243
          id: ap-620
      author: Rypl, D.; Bittnar, Z.
       title: Triangulation of 3D Surfaces Recovered from STL Grids
        date: 2004-01-05
       words: 4677
      flesch: 53
     summary: These are all bg nodes that are not shared exactly by two bg edges. During the averaging, the bg nodes are repositioned to a new location evaluated as a weighted average of bg nodes in the neighbourhood (ac- cording to the so called averaging mask).
    keywords: aspect; averaging; bg edge; bg faces; bg nodes; boundary; classified; control; corresponding; curvature; curve; czech; edge; element; faces; features; fig; file; format; generation; grid; limit; limit surface; mask; mesh; midnode; model; new; non; order; original; point; position; ratio; representation; scheme; stl; subdivision; surface; surface bg; technique; triangulation; vertex; vertices
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        item: #940 of 1243
          id: ap-622
      author: Krejčí, T.
       title: Solution of Nonlinear Coupled Heat and Moisture Transport Using Finite Element Method
        date: 2004-01-05
       words: 4570
      flesch: 65
     summary: (15) The assumption that the shear stress in fluids is negligible converts the latter equation into the form � �� ef sp m, (16) where � � � �� � � x y z yz zx xy T T, , , , , , { , , , , , }m 1 1 1 0 0 0 (18) Deformation of a porous skeleton associated with the grain rearrangement can be expressed using the constitutive equation written in the rate form � ( � � )� � �ef sk� D 0 .
    keywords: air; capillary; conditions; czech; div; element; equations; flux; g g; g gw; gas; gra �; grad; heat; k k; linear; mass; material; matrix; media; method; moisture; p p; p t; parameter �; phase; porous; pressure; problems; s s; solution; system; t t; technical; temperature; time; transport; university; vector; vol; w g; w w; water; � ef; � eff; � g; � ga; � n; � x; � �
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        item: #941 of 1243
          id: ap-6223
      author: Havlík, Jan; Dlouhý, Tomáš; Krempaský, Jakub
       title: THE CONDENSATION OF WATER VAPOUR IN A MIXTURE CONTAINING A HIGH CONCENTRATION OF NON-CONDENSABLE GAS IN A VERTICAL TUBE
        date: 2020-07-01
       words: 5723
      flesch: 57
     summary: Numerical simulation of air–steam mixture condensation flows in a vertical tube. Effect of an interfacial shear stress on steam condensation in the presence of a noncondensable gas in a vertical tube.
    keywords: acta; air; annulus; concentration; condensable; condensation; condensation htc; condensation process; condensation temperature; condenser; conditions; decrease; difference; effect; experimental; film; film condensation; flow; gas; heat; heat transfer; high; htc; influence; mass; mixture; ncg; non; number; nusselt; partial; polytechnica; presence; pressure; process; pure; pure steam; saturation; shear; steam; steam condensation; steam mixture; stress; surface; temperature; thermal; transfer; tube; value; vapour; velocity; vertical; vertical tube; wall; water; water htc; water vapour
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        item: #942 of 1243
          id: ap-624
      author: Fajman, P.
       title: Membrane Triangles with Drilling Degrees of Freedom
        date: 2004-01-05
       words: 2811
      flesch: 71
     summary: Components of the engineering strain � � { , , }� � �x y xy T are obtained applying standard transformation as � � � � �ij ij ij ij ij� �{cos , sin , sin cos } 2 2 �, and in matrix notation � � � � * *� � � ��A A 1 . 4 Element stiffness matrix The pure element stiffness matrix is extended by includ- ing the rigid body motions through the static matrix T ob- tained from the relations between the pure displacements u* { , , , , , }� � � �u u u T21 32 13 1 2 3� � � and the global node displacements u � { , , , , , , , , }u v u v u v T1 1 1 2 2 2 3 3 3� � � .
    keywords: allman; beam; body; cantilever; deflection; displacements; edges; element; elongations; fig; ij ij; matrix; nodal; node; pure; results; rigid; rotations; sides; sin; stiffness; strain; tip; triangular; vector; vol
       cache: ap-624.pdf
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        item: #943 of 1243
          id: ap-626
      author: Tesárek, P.; Drchalová, J.; Kolísko, J.; Rovnaníková, P.; Černý, R.
       title: Mechanical, Hygric and Thermal Properties of Flue Gas Desulfurization Gypsum
        date: 2004-01-05
       words: 4440
      flesch: 60
     summary: Flue gas desulfurization of one power station block creates up to 20 t of FGD gypsum per hour. FGD gypsum is produced in great quantities, but is in- sufficiently used.
    keywords: basic; calcined; coefficient; common; compressive; conductivity; content; cup; czech; data; days; desulfurization; diffusion; diffusivity; experiment; fgd; gypsum; heat; higher; humidity; hygric; mass; material; measured; measurements; mechanical; method; moisture; production; profiles; properties; reference; relative; resistance; results; samples; specimens; standard; strength; table; temperature; thermal; time; university; vapor; vol; water; wet; čsn
       cache: ap-626.pdf
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        item: #944 of 1243
          id: ap-628
      author: Doležel, T.; Drdácký, M.; Konvalinka, P.; Kopecký, L.
       title: Experimental Analysis of Sandstone and Travertine
        date: 2004-01-05
       words: 1135
      flesch: 50
     summary: Keywords: sandstone, travertine, EDAX point analysis, microscopic analysis, stress-strain diagram in compression, modulus of elasticity. A three-point bending experiment is usually used to determine material characteristics.
    keywords: analysis; characteristics; compression; czech; diagram; edax; engineering; experimental; fig; material; minerals; point; sandstone; specimen; strain; stress; technical; travertine; university
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        item: #945 of 1243
          id: ap-6284
      author: Deuring, Paul; Kračmar, Stanislav; Nečasová, Šárka
       title: NOTE ON THE PROBLEM OF MOTION OF VISCOUS FLUID AROUND A ROTATING AND TRANSLATING RIGID BODY
        date: 2021-02-10
       words: 5407
      flesch: 78
     summary: ∇)u(z) + ∇π(z) = F(z) div u(z) = 0 for z ∈ Ω (1.1) −∆u(z) ψ(r) := ∫ r 0 (1 −e −t) t−1 dt (r ∈ R), Φ(x) := (4 π τ)−1 ψ ( τ (|x|−x1)/2 ) (x ∈ R3), Ejk(x) :
    keywords: analysis; body; boundary; bounded; bs1; case; conditions; decay; deuring; div; domain; equations; estimates; exterior; flow; fluid; incompressible; kračmar; lemma; linear; mathematical; motion; navier; nečasová; oseen; pressure; problem; rigid; rotating; solution; stokes; system; theorem; velocity; viscous
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        item: #946 of 1243
          id: ap-6289
      author: Ižvolt, Libor; Dobeš, Peter; Mečár, Martin
       title: TESTING THE SUITABILITY OF THE EXTRUDED POLYSTYRENE (STYRODUR) APPLICATION IN THE TRACK SUBSTRUCTURE
        date: 2020-07-01
       words: 4685
      flesch: 50
     summary: Fig. 8 shows the dependence of the thickness of the crushed aggregate sub-ballast layer on the required value of the static deformation modulus Esi of the sub-ballast upper surface (Esbl) for the standard struc- ture of sub-ballast layers (sub-ballast layer of crushed aggregate only) and higher deformation resistance of the subgrade surface E0 =approx. Placing the XPS at the bottom of sub-ballast layers has several drawbacks, namely: • it must withstand significant traffic loads, • it is worn due to a considerable contact stress with the ballast bed material, • the track substructure may freeze from the side, especially in the case of a railway line in the em- bankment.
    keywords: aggregate; ballast; ballast layers; boards; case; characteristics; deformation; deformation resistance; experimental; extruded; field; fig; figure; impact; insulation; level; load; low; materials; measurements; modified; modulus; mpa; plate; polystyrene; properties; railway; segment; standard; static; static modulus; structure; sub; subgrade; subgrade surface; substructure; surface; testing; thermal; thickness; track; traffic; value; xps
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        item: #947 of 1243
          id: ap-630
      author: Řeřicha, P.
       title: Mohr-Coulomb Failure Condition and the Direct Shear Test Revisited
        date: 2004-01-05
       words: 2389
      flesch: 68
     summary: , ( . ),� �� � � �0 5 26 6 1c and sev- eral values of parameter Fig. 6: Modified Mohr-Coulomb for tan . , ( . ),� �� � � �0 5 26 6 1c and several values of parameter Fig. 7: Coulomb for the maximum shear plane tan . ,� � 0 5 ( . ),� � � �26 6 1c and several values of parameter References [1] US Army Corps of Engineers (2003).
    keywords: condition; coulomb; criterion; critical; direct; equation; failure; fig; modified; mohr; n n; normal; orientation; parameter; plane; shear; stress; tan; test; yield; � n
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        item: #948 of 1243
          id: ap-6304
      author: Bodnár, Tomáš; Fraunié, Philippe ; Kozel, Karel 
       title: MODIFIED EQUATION FOR A CLASS OF EXPLICIT AND IMPLICIT SCHEMES SOLVING ONE-DIMENSIONAL ADVECTION PROBLEM
        date: 2021-02-10
       words: 6134
      flesch: 60
     summary: 7. Remark on applications Based on a detailed knowledge of the diffu- sive/dispersive behavior of numerical schemes, suit- able strategy can be chosen to improve their properties, namely the stability and resolution. This led to a discussion concerning the diffusive and dispersive properties of numerical schemes.
    keywords: advection; advection equation; approximation; a∆x; behavior; central; classical; coefficient; difference; diffusion; diffusive; discrete; dispersion; equation; explicit; family; finite; form; general; implicit; initial; i−1; lax; methods; model; modified; numerical; numerical solution; order; original; problem; properties; schemes; solution; spatial; table; term; time; u(x; u(xi; un+1i; upwind; uxx; viscosity; wendroff; wind
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        item: #949 of 1243
          id: ap-632
      author: Kuklík, P.; Kopáčková, M.
       title: Efficient Analytical Model for Calculation of the Influence Zone inside the Subsoil below Foundations Slabs
        date: 2004-01-05
       words: 4266
      flesch: 66
     summary: This equation, when combined with the idea of pseudo-over consolidation, then provides f F h h Hz w w1 2� � � �( ) ( )� � � . (7) yields x r x H f K n r I n xz z n n � � � � � � � � � 0 2 1 2 1 2 1 2 11 0 0 ; ( , ) ( ) ( ) ( )� � � � � � � � � � � �� � � � � � � , ; ( , ) ( ) ( ) ( x r x H
    keywords: analysis; analytical; consolidation; czech; depth; distribution; excavation; fig; finite; foundation; g.w.t; geostatic; house; http://ctn.cvut.cz/ap/; influence; kpa; loading; model; numerical; polytechnica; pressure; soil; solution; state; stress; subsoil; surcharge; table; technical; university; vertical; water; zone
       cache: ap-632.pdf
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        item: #950 of 1243
          id: ap-634
      author: Teplý, B.; Rovnaník, P.; Keršner, Z.; Rovnaníková, P.
       title: How Reliable is the Durability of RC Structures?
        date: 2004-01-05
       words: 2171
      flesch: 45
     summary: RC_LifeTime offers the following options: Service Life Assessment – a statistical evaluation of service life, where optionally the target value of reliability index � may be an additional input value and then the corresponding service life is the output value Concrete Cover Assessment – a statistical evaluation of concrete cover value for the target service life, where optionally the required concrete cover value may be input in this case and the relevant reliability index � describes the reliability of reinforcement depassivation. Optionally, required concrete cover value may be input and the relevant reliability index � is then an output value (describing the reliability of reinforcement depassivation).
    keywords: approach; assessment; carbonation; concentration; concrete; cover; czech; data; depassivation; depth; design; durability; failure; fig; index; input; life; limit; mean; model; output; random; rc_lifetime; reinforcement; relevant; reliability; service; service life; sls; state; statistical; structures; value; variables; vol
       cache: ap-634.pdf
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        item: #951 of 1243
          id: ap-636
      author: Novák, D.; Lehký, D.
       title: Neural Network Based Identification of Material Model Parameters to Capture Experimental Load-deflection Curve
        date: 2004-01-05
       words: 4257
      flesch: 52
     summary: Generally, the more sophisticated the model we deal with, the greater the number of model parameters that have to be considered. The aim of this paper is to present a new approach for identifying material model parameters.
    keywords: acta; analysis; approach; atena; compressive; concrete; curve; czech; deflection; engineering; experimental; failure; fig; fracture; function; http://ctn.cvut.cz/ap/; identification; input; layer; lhs; load; material; mechanics; model; mpa; network; neural; neural network; neurons; nonlinear; number; numerical; output; parameters; polytechnica; probabilistic; random; set; simulation; software; statistical; stochastic; strength; structures; technical; training; transfer; university; variables; vol
       cache: ap-636.pdf
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        item: #952 of 1243
          id: ap-638
      author: Štemberk, P.; Kruis, J.
       title: Fuzzy Dynamic Analysis of a 2D Frame
        date: 2004-01-05
       words: 3180
      flesch: 56
     summary: Keywords: fuzzy numbers, natural frequency, mode shape, response surface function. The results of fuzzy dynamic analysis can be used, e.g., in seismic design of structures based on the response spectrum.
    keywords: -cuts; analysis; approach; arithmetic; computation; concrete; czech; data; design; displacements; distribution; dynamic; element; fig; finite; frame; function; fuzzy; input; material; membership; mode; natural; numbers; order; output; parameters; response; section; seismic; set; sets; shape; space; structures; surface; terms; values; vector; vol
       cache: ap-638.pdf
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        item: #953 of 1243
          id: ap-640
      author: Křístek, V.
       title: A Shear Lag Analysis for Composite Box Girders with Deformable Connectors
        date: 2004-01-05
       words: 4433
      flesch: 73
     summary: jN j L N j L F�� ( ) ( )� � � � � 2 2 2 2 2 1 0 � � � � , (20) j L F k N t E N t E j s j s s c (11) Substituting for the shear flows sq and cq from equations (1) and (2): � � � � � � � � 2 2 2 2 2 2 1 0s x s s x s n y n x f x � � � � �( ) ( ) , (12) � � � � � � � � 2 2 2 2 2 2 1 0c x c c x c n y n x f x � � � � �( ) ( ) .
    keywords: c c; c p; composite; concrete; e j; flange; g �; j c; j j; j l; j n; j t; kl j; lag; layer; p y; s c; s j; s p; s s; shear; steel; y c; y j; y s; y y; y �; � c; � j
       cache: ap-640.pdf
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        item: #954 of 1243
          id: ap-642
      author: Wald, F.; Studecká, P.; Kroupa, L.
       title: Temperature of Steel Columns under Natural Fire
        date: 2004-01-05
       words: 4832
      flesch: 61
     summary: g t a t� � � �� � � � � � 4 4 , (2) where hc is the convective heat transfer coefficient Table B2: Steel beam temperatures (°C), numbers of thermocouples, see Figs. 2 and 5 [5]
    keywords: acta; area; beam; behaviour; building; c410; cardington; column; comparison; compartment; concrete; connections; czech; design; elements; end; external; fig; fire; flange; floor; g525; gas; heat; height; house; http://ctn.cvut.cz/ap/; internal; length; load; material; measured; min; natural; no.5–6/2004; paper; polytechnica; prediction; protection; publishing; section; slab; steel; structure; table; technical; temperature; test; thermal; thermocouples; thickness; time; transfer; unit; university; unprotected; vol
       cache: ap-642.pdf
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        item: #955 of 1243
          id: ap-644
      author: Plachý, T.; Polák, M.
       title: Nondestructive Damage Detection Based on Modal Analysis
        date: 2004-01-05
       words: 4010
      flesch: 56
     summary: Keywords: modal analysis, natural mode, natural frequency, damage detection, MAC, COMAC, service life, fatigue. 0.032 0.001 0.009 10 0.004 0.001 0.042 0.113 0.031 0.039 0.254 0.772 0.181 0.006 0.173 11 0.010 0.001 0.023 0.005 0.004 0.011 0.014 0.135 0.272 0.006 0.011 12 0.023 0.000 0.047 0.000 0.000 0.261 0.002 0.033 0.022 0.326 0.035 Table 1: The bridge across the highway D5 near Vráž – comparison of natural modes from the first and from the second stage of the experimental investigation of the bridge using MAC Eleven natural frequencies, modal shapes and damping frequencies were evaluated after the first stage (the damaged state) of experimental bridge monitoring, and twelve natural frequencies, modal shapes and damping frequencies were evaluated after the second stage (the state after reconstruc- tion) of experimental bridge monitoring.
    keywords: acta; beam; behavior; bridge; change; comparison; czech; damaged; dynamic; experimental; fig; flexibility; girder; house; http://ctn.cvut.cz/ap/; load; matrix; modal; modes; natural; natural modes; no.5–6/2004; polytechnica; publishing; reconstruction; second; state; technical; university; vol
       cache: ap-644.pdf
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        item: #956 of 1243
          id: ap-646
      author: Šmilauer, V.; Máca, J.; Valášek, M.
       title: Dynamic Bridge Response for a Bridge-friendly Truck
        date: 2004-01-05
       words: 2911
      flesch: 68
     summary: m z k z z a F k z z b F d d 1 1 12 1 2 12 13 1 3 13 2 4 �� ( ) ( ) , � � � � � � � � � � � � (1) I ak z z a aF bk z z b bF d d 01 1 12 1 2 12 13 1 3 2 4 �� ( ) ( ) � � � � � � � � � � � � 13 , (2) � �m z k z z a F k z z t b z d2 2 12 1 2 12 20 2 02 20 2 2�� ( ) ( ) �� � � � � � � � � � � � � �� ( ) ,z t02 (3) � �m z k z z b F k z z t b z d3 3 13 1 3 13 30 3 03 30 3 4�� ( ) ( ) �� � � � � � � � � � � � � �� ( ) ,z t03 (4) F b z z b z a b z a zd f f f12 1 2 02 2 1 12 1 2� � � � � � � �( � � ) ( � � ) ( � � � )� � � � � � �� �k z z k z a zf f10 2 02 12 1 2( ) ( ) ,� (5) F b z z b z b b z b zd r r r13 1 3 03 2 1 12 1 3� � � � � � � �( � � ) ( � � ) ( � � � )� � � � � � �� �k z z k z b zr r10 3 03 12 1 3( ) ( ) ,� (6) z t z zr02 4( ) ,� � (7) z t z zr03 5( ) ,� � (8) where z4, z5 are the bridge displacements and zr is a road ir- regularity. The bridge span varies from 5 to 50 m, covering the majority of real bridges made from concrete or steel with such a statical system [7]: � reinforced concrete bridges – span of 5 to 12 m � prestressed concrete bridges – span of 12 to 30 m � composite steel-concrete bridges – span of 15 to 50 m © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 153 Acta Polytechnica Vol. 44 No.5–6/2004 Fig.
    keywords: active; axle; beam; bridge; bump; car; contact; control; czech; damper; deflections; dynamic; effect; fig; force; friendly; half; model; parameters; passive; polytechnica; rear; response; road; semi; slab; span; suspensions; technical; truck; unevenness; university; valášek; vol
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        item: #957 of 1243
          id: ap-648
      author: Němeček, J.; Padevět, P.; Bittnar, Z.
       title: Effect of Stirrups on Behavior of Normal and High Strength Concrete Columns
        date: 2004-01-05
       words: 4314
      flesch: 61
     summary: [16] for concrete columns with pretensioned carbon fiber polymer tubes. [7] Brocca M., Bažant Z. P.: “Size effect in concrete columns: Finite-element analysis with microplane model.”
    keywords: bažant; behavior; columns; compression; computational; concrete; cross; czech; damage; deflection; ductility; effect; element; experiments; failure; fig; finite; high; lateral; load; longitudinal; material; measured; mechanics; microplane; midheight; model; normal; němeček; overall; parameters; peak; post; reinforcement; results; series; size; specimens; steel; stirrups; strain; strength; structural; table; uniaxial; university; values; vol; zone
       cache: ap-648.pdf
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        item: #958 of 1243
          id: ap-650
      author: Kabele, P.
       title: A Simplified Analysis of the Post-buckling Behavior of a Compressed Reinforcing Bar
        date: 2004-01-05
       words: 3054
      flesch: 62
     summary: (1) and (2) and considering the equiva- lence of bending moment M and the moment due to normal stress, the following relation is obtained: M M K p� �sgn( )� �0 (3) where M Ay A 0 � � � � d (4) and K E Ap h A � � � 2 d (5) and A is the cross-sectional area of the bar. (18), the bar rupture is initiated at P � 4.34 kN and u � 0.0342 m, which correspond to � � 0.804962 rad.
    keywords: analysis; axial; bar; bars; behavior; bending; buckling; central; concrete; cos; czech; displacement; extreme; fem; fig; finite; force; hinges; length; line; load; material; model; moment; plastic; post; reinforcing; section; shape; strain; � �
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        item: #959 of 1243
          id: ap-652
      author: Dimitrovová, Z.
       title: A New Methodology to Establish Upper Bounds on Open-Cell Foams Homogenized Properties
        date: 2004-01-05
       words: 12536
      flesch: 68
     summary: 44 No.5–6/2004 Macroload Property Specification of � Specification of E �K K * � � � �� � � �11 22 33 0, �ij i j� � �0 E E E E� � � �11 22 33 0, E i j, 3K E Eij * s� � � �0 � ( ) �1G G1 * � � � �11 22 33 0 0 � � �, ,k; kk �ij i j� � �0 E E E E i jij11 22 33 0 0 � � � �, 21G E E kkk kk s #* ( )� �� �2G G2 * � � � �11 22 33 0 0� � � � � �, i j; ij E E E11 22 33 0� � � , 22G E E The requirement P 0j j� � �1 2 3, , is equiva- lent to the condition under which & �max � � �1,i 2,i 3,i (48) is obtained for each i. Solutions of (48) yield four groups of angles, as specified in Table 5, corresponding to the main di- agonals of the unit cube.
    keywords: acta; additional; bars; basic; beam; bounds; case; cell; cellular; conditions; constant; continuous; contribution; corresponding; cos; cross; cubic; czech; density; dimitrovová; directions; effective; elastic; faria; fig; foams; forces; geometrical; group; house; http://ctn.cvut.cz/ap/; internal; joints; k k; lattice; linear; local; macroload; material; maximality; mech; media; medium; methodology; micro; modulus; necessary; no.5–6/2004; normal; open; optimal; polytechnica; properties; publishing; q q; s �; section; sectional; sin; solids; table; technical; terms; trusses; university; upper; vol; volume; � bm; � �
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        item: #960 of 1243
          id: ap-654
      author: Konrad, M.; Chudoba, R.
       title: The Influence of Disorder in Multifilament Yarns on the Bond Performance in Textile Reinforced Concrete
        date: 2004-01-05
       words: 4034
      flesch: 52
     summary: Particular interest is paid to the influence of irregularities in the micro-structure (relative differences in filament lengths, varying bond quality, bond-free length) for different levels of local bond quality between the filament surface and the matrix. The improvement of the local bond performance is counterpro- ductive and results in an earlier failure of the outer filaments with higher bond performance.
    keywords: activation; behavior; bond; bond layer; bond performance; bond quality; bundle; concrete; curve; disorder; displacement; distribution; effect; failure; fig; filaments; force; free; frictional; higher; influence; interaction; layer; length; level; material; matrix; maximum; model; performance; process; pull; quality; scales; stiffness; strength; stress; structure; tau_fric; textile; university; vol; yarn
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        item: #961 of 1243
          id: ap-656
      author: Procházka, P. P.
       title: Micromechanics Based Inelastic and Damage Modeling of Composites
        date: 2004-01-05
       words: 5122
      flesch: 62
     summary: The kernel � is defined by: � ��ijkl ijkl jkilG G� � � � � � � � �x x x� � �� � 1 2 , (8) where Gijkl is the Green function of the homogeneous medi- um L0 obeying: L Gijkl kplj ip 0 0� ��� � � x x� �( ) , (9) where ip is the Kronecker symbol and ( )x � � is the Dirac continuous functional. The Lippman-Schwinger equation has the form: � �� � � � � � � �( ) ( ) )( ( ) ( ))� � �� 0 � � � � � � � � � x L x L x x xd (7) in which �0 denotes the strain field (in our case considered to be uniform) that would exist in a comparable homogeneous medium L0 under the same boundary conditions.
    keywords: analysis; behavior; boundary; case; cell; composites; concentration; considered; czech; damage; dvorak; eigenstrains; elastic; equations; fiber; field; homogenization; integral; internal; local; materials; matrix; mechanics; method; nonlinear; numerical; overall; phase; procházka; properties; stiffness; strain; stress; tensor; transformation; u y; unit; university; vol; volume; way; y l; y y; šejnoha; šejnoha j.; � �
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        item: #962 of 1243
          id: ap-6575
      author: Yusuff, Adeyinka Sikiru; Popoola, Lekan Taofeek; Anochie, Victor
       title: Utilization of agricultural waste adsorbent for the removal of lead ions from aqueous solutions
        date: 2021-08-31
       words: 5454
      flesch: 54
     summary: SEM micrographs of CMOSW sample (a) prior to and (b) after Pb2+ ions adsorption. FTIR spectra of CMOSW sample (a) prior to and (b) after Pb2+ ions adsorption.
    keywords: acta; adsorbent; adsorption; agricultural; aqueous; area; capacity; carbon; chemical; cmosw; cm−1; concentration; contact; data; dosage; engineering; equilibrium; experimental; figure; freundlich; heavy; influence; initial; ions; isotherm; journal; kinetic; lead; materials; metal; min; model; modified; onion; order; parameters; pb2; percentage; polytechnica; pore; prepared; pseudo; removal; results; sample; science; second; sem; skin; solution; studies; surface; table; textural; thermodynamic; time; toxic; value; waste; wastewater; water; yusuff
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        item: #963 of 1243
          id: ap-658
      author: Zeman, J.; Valenta, R.; Šejnoha, M.
       title: On Adequacy of Two-point Averaging Schemes for Composites with Nonlinear Viscoelastic Phases
        date: 2004-01-05
       words: 6727
      flesch: 54
     summary: With the aid of function � r , the n-point probability function Sr1, …, rn can be defined as [21, 22] Sr rn n r rn n1 1 1 1, , ( , , ) ( , ) ( , ) ,� � �x x x x� � � � � (1) where � denotes the ensemble average. Admitting only small strains and isotropic ma- terials, a set of constitutive equations defining the generalized compressible Leonov model can be written as � �m K� , (18) � ( � � ), ,sij ij ij pG e e� � �� �2 , (19) � ( ) ( ), , , , e s s ij p ij eq ij eqa � � � � � � � � � � 1 2 1 2 0 , (20) � � � � � ij m ij ij ij ij M � � � � s s s, , 1 , (21) where �m is the mean stress, � is the volumetric strain, K is the bulk modulus, G� is the shear modulus of the �-th unit and �ij is the Kronecker delta.
    keywords: acta; analysis; applied; average; averaging; behavior; cell; composites; computational; czech; deformation; e12; elastic; element; engineering; equivalent; fiber; fields; fig; finite; function; generalized; house; http://ctn.cvut.cz/ap/; individual; integration; leonov; local; localization; macroscopic; material; matrix; mechanics; method; microstructure; model; modeling; no.5–6/2004; nonlinear; number; numerical; overall; particular; phase; point; polytechnica; publishing; random; rate; response; results; scale; schemes; section; shear; strain; stress; t t; technical; time; unit; university; viscoelastic; vol; volume; šejnoha; � s; � �
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        item: #964 of 1243
          id: ap-6580
      author: Siddika, Ayesha; Amin, Md. Ruhul; Rayhan, Md. Abu; Islam, Md. Saidul; Mamun, Md. Abdullah Al; Alyousef, Rayed; Amran, Y. H. Mugahed
       title: PERFORMANCE OF SUSTAINABLE GREEN CONCRETE INCORPORATED WITH FLY ASH, RICE HUSK ASH, AND STONE DUST
        date: 2021-03-01
       words: 8341
      flesch: 60
     summary: Influence of silpozz and rice husk ash on enhancement of concrete strength. The lost strength of the FA and RHA added concrete compared to the control have been recovered, to some extent, after the addition of the SD in the mix.
    keywords: absorption; addition; age; aggregate; area; ash; astm; building; capacity; cement; civil; compressive; concrete; concrete mix; concrete specimens; construction; content; control; density; different; doi:10.1016; durability; dust; effect; energy; engineering; f5r5s10; fig; figure; fine; fineness; flexural; fly; green; green concrete; high; higher; husk; hydration; journal; level; low; lower; materials; matrix; mechanical; mix; natural; optimum; ordinary; partial; performance; polytechnica; products; properties; reduction; replacement; results; rha; rice; sand; siddika; silica; slump; specific; specimens; splitting; standard; stone; strength; study; supplementary; surface; sustainable; sustainable concrete; tensile; test; use; value; waste; water; workability
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        item: #965 of 1243
          id: ap-660
      author: Skokánek, J.
       title: Deformation Stress State of Elastic Bodies
        date: 2005-01-01
       words: 6861
      flesch: 56
     summary: (17) After the substitution of �� from Eq. (10) in Eq. (16), the deformation stress equation in general direction of a triaxially loaded body will acquire the form �� � � � � � � � � � � � � � � c E � � � 1 2 2 2 2 3 1 1 1 [( ) cos ] [( ) sin cos ] [( � �� � � �) sin sin ] By putting �� � 0 and � �� 0 2, or , we obtain from this equation the formulas for computation of the angles of zero deformation stresses in the planes x1 x2 and x1 x3 for a tri- axially loaded body cos ( ) ( )( )( ) 2 0 12 1 3 2 1 21 � � � � � � � � � � � � � , (19a) 8 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 45
    keywords: atoms; bodies; body; case; change; components; cos; cross; czech; deformation; deformation force; deformation stress; different; direction; effect; effective; element; elongation; equilibrium; f �; failure; fig; force; internal; loaded; maximum; negative; point; positive; prague; principal; relative; section; shear; spherical; state; strength; stress; stress direction; stress state; stresses; surface; technical; theory; uniaxial; university; vector
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        item: #966 of 1243
          id: ap-662
      author: Čepek, A.; Pytel, J.
       title: A Progress Report on Numerical Solutions of Least Squares Adjustment in GNU Project Gama
        date: 2005-01-01
       words: 5487
      flesch: 55
     summary: A UWV VW W V VW U UUll xx� � � � � � � � � � �( ))( )(T1 , (32) Q AQ UWV VW W V UW Vlx xx� � � � � � � � �1 1T . For any real m × n matrix A, m � n, there exists the singular value decomposition A UW V� � (26) � � � � � �U U VV V V1 1, , where U is an m
    keywords: adjustment; algorithm; case; cofactors; columns; condition; coordinates; corresponding; czech; data; decomposition; dependent; equations; free; gama; geodesy; geodetic; gnu; gram; gso; linear; local; matrix; method; model; network; normal; number; numerical; observations; orthogonalization; parameters; points; prague; project; residuals; schmidt; second; set; singular; solution; squares; svd; system; technical; testing; university; unknown; value; vector; vol; xml; � �
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        item: #967 of 1243
          id: ap-6637
      author: Kresan, Tetiana; Pylypaka, Serhii; Ruzhylo, Zynovii; Rogovskii, Ivan; Trokhaniak, Oleksandra
       title: EXTERNAL ROLLING OF A POLYGON ON CLOSED CURVILINEAR PROFILE
        date: 2020-09-01
       words: 3512
      flesch: 73
     summary: Keywords: Equilateral polygon, curvilinear profile, external rolling, differential equation, centroids. Curvilinear profiles with different number of turns of a square: a) a square, when completely rolling along the profile, makes two turns; b) a square, when completely rolling along the profile, makes four turns.
    keywords: 1,a; arc; case; centre; centroid; circle; circular; closed; contact; cos; curve; curvilinear; curvilinear profile; elements; equal; equation; fig; gears; length; non; number; point; polygon; position; profile; radius; rolling; sides; square; straight; triangle; vector; vertex
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        item: #968 of 1243
          id: ap-664
      author: Brůha, O.; Brůha, T.
       title: Heating and Cooling Anomaly of a Rotating Body
        date: 2005-01-01
       words: 3182
      flesch: 69
     summary: 1: � � � m r h2 , (A2) or: � � � � 0 0 2 0 2 � � m r h t m r t h t , ( ) ( ) ( ) , (A3) and from relation (6, 7) follows: � � � �( )t m r e h e m r h e e t t t t� � � � 0 2 2 0 0 l S r h rx� � � .
    keywords: angular; body; change; cylinder; czech; deformation; e e; e t; energy; expansion; fig; heating; increase; kinetic; t t; technical; temperature; thermal; university; velocity; � ts
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        item: #969 of 1243
          id: ap-6650
      author: Haouam, Ilyas
       title: ON THE THREE-DIMENSIONAL PAULI EQUATION IN NONCOMMUTATIVE PHASE-SPACE
        date: 2021-03-01
       words: 7358
      flesch: 68
     summary: Formulation of noncommutative Pauli equation The Pauli equation is the formulation of the Schrödinger equation for spin-1/2 particles, which was formulated by W. Pauli in 1927. Physics Letters A 381(44):3723 – 3725, 2017. doi:10.1016/j.physleta.2017.10.003. 241 http://dx.doi.org/10.1007/s002200050779 http://dx.doi.org/10.1007/PL00005547 http://dx.doi.org/10.1103/PhysRevLett.87.141601 http://dx.doi.org/10.1016/S0370-1573(03)00059-0 http://dx.doi.org/10.30970/jps.24.1801 http://dx.doi.org/10.1142/S0217732305017421 http://dx.doi.org/10.14311/AP.2020.60.0111 http://dx.doi.org/10.30970/jps.24.2002 http://dx.doi.org/10.3390/sym11020223 http://dx.doi.org/10.4236/ojm.2019.93003 http://dx.doi.org/10.1088/1361-6404/ab7495 http://dx.doi.org/10.6122/CJP.51.94 http://dx.doi.org/10.1088/1674-1137/32/5/002 http://dx.doi.org/10.1088/0253-6102/41/6/837 http://dx.doi.org/10.1016/j.physleta.2017.10.003 Acta Polytechnica 61(1):230–241, 2021 1 Introduction 2 Review of noncommutative algebra 3 Pauli equation in noncommutative phase-space 3.1 Formulation of noncommutative Pauli equation 3.2 Deformed continuity equation 3.3 Derivation of the magnetization current 4 Noncommutative Semi-classical Partition Function 5 Conclusion Acknowledgements References
    keywords: + −→; acta; algebra; bopp; c −→; case; classical; constant; continuity; continuity equation; corresponding; current; density; dimensional; dirac; electromagnetic; electron; energy; equation; f(x; field; following; function; geometry; h(x; hand; haouam; journal; limit; magnetic; magnetization; mechanics; moyal; noncommutative; noncommutative phase; order; p2x+p; particle; partition; pauli; pauli equation; phase; physical; physics; pnc; polytechnica; presence; probability; product; quantum; relativistic; review; schrödinger; semi; shift; space; spin; spin-1/2; system; term; theory; vol; wave; zncclas,1; βµbb; π̂jncψ; −→ ∇; −→p; −→σ
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        item: #970 of 1243
          id: ap-6653
      author: Al-Baidhani, Ali; Al-Taie, Abbas Jawad
       title: Performance characteristics of low carbon waste material to stabilise soil with extremely high plasticity
        date: 2021-10-31
       words: 6361
      flesch: 58
     summary: Figure 7 highlights the variation of SP with BSD content; the LS values are also presented in Figure 7. Variation of SP and LS with various BSD percentages. Also, the effect of curing on the development of soil strength has been included.
    keywords: acta; addition; applied; ash; bsd; bsd mixtures; bsdc; bsdf; bsdf50; building; carbon; cement; characteristics; clay; compressibility; construction; content; curing; debris; decrease; effect; ehps; engineering; expansive; figure; fly; geotechnical; gradation; high; improvement; index; international; journal; laboratory; lcm; limit; linear; low; materials; maximum; min; mixtures; natural; performance; plasticity; polytechnica; potential; pozzolanic; pressure; properties; ratio; reaction; reduction; result; samples; shear; shrinkage; soil; specimens; stabilisation; stone; strength; sustainable; swell; swelling; table; taie; test; time; type; unaltered; values; variation; waste; water
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        item: #971 of 1243
          id: ap-666
      author: Almarimi, A.; Pokorný, J.
       title: Schema Management for Data Integration: A Short Survey
        date: 2005-01-01
       words: 4111
      flesch: 58
     summary: Czech Technical University in Prague Schema Management for Data Integration: A Short Survey A. Almarimi, J. Pokorný Schema management is a basic problem in many database application domains such as data integration systems. In general, data integration systems can be classified into data-warehouse and mediator-wrapper systems.
    keywords: acta; application; approaches; common; conf; conflicts; czech; data; data integration; database; different; elements; entity; global; heterogeneity; heterogeneous; information; input; integration; local; mapping; matching; mediation; model; naming; new; object; ontologies; ontology; problem; proc; process; query; querying; representation; schema; schema integration; section; semantic; set; sources; structural; systems; technical; techniques; university; use; view; vldb; vol; xml
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        item: #972 of 1243
          id: ap-668
      author: Usama, S.; Montaser, M.; Ahmed, O.
       title: A Complexity and Quality Evaluation of Block Based Motion Estimation Algorithms
        date: 2005-01-01
       words: 8539
      flesch: 71
     summary: Each pixel comparison requires four operations, namely, a subtrac- tion, an absolute-value calculation, one addition, and one division, if the cost of accessing pixels C x k y l( , )� � and R x i k y j l( , )� � � � is ignored. Each pixel comparison also requires three operations, a subtrac- tion, an absolute-value calculation, and one addition, if the cost of accessing pixels C x k y l( , )� � and R x k i y l j( , )� � � � is ignored.
    keywords: 3ss; 4ss; 4×4; acta; algorithm; best; block; block size; cbosa; center; checking; comparison; complexity; cost; csa; czech; different; distortion; effect; frame; fs algorithm; function; mad; matching; minimum; motion; noise; number; osa; ots; overlapped; point; polytechnica; quality; reconstructed; search; search algorithm; searching; sequence; step; step search; step size; tdl; technical; tss; university; video; view; vol; window
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        item: #973 of 1243
          id: ap-670
      author: Tesárek, P.; Pavlík, J.; Černý, R.
       title: Comparison of the Capacitance Method and the Microwave Impulse Method for Determination of Moisture Profiles in Building Materials
        date: 2005-01-01
       words: 3211
      flesch: 55
     summary: Keywords: Moisture profiles, capacitance method, microwave impulse method, building materials. Fig. 1: Block diagram of the capacitance device 3 Experimentals methods 3.1 Capacitance method The capacitance device designed in [6] was used for the measurements. There are a variety of methods for determination of mois- ture content.
    keywords: accuracy; boltzmann; building; calibration; capacitance; capacitance method; cement; content; curve; czech; data; determination; experimental; fig; gravimetric; gravimetric method; impulse; impulse method; materials; measured; method; microwave; microwave impulse; moisture; moisture content; paste; porous; prague; profiles; specimen; technical; technique; time; university; vol; voltage; water
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        item: #974 of 1243
          id: ap-672
      author: Hodač, J.
       title: 3D Information System of Historical Site – Proposal and Realisation of a Functional Prototype
        date: 2005-01-01
       words: 4544
      flesch: 56
     summary: Czech Technical University in Prague 3D Information System of Historical Site – Proposal and Realisation of a Functional Prototype J. Hodač The development of methods for 3D data acquisition, together with progress in information technologies raises the question of creating and using 3D models and 3D information systems (IS) of historical sites and buildings. Work with 3D data is closely connected with development in computer graphics (virtual reality).
    keywords: 3d data; 3d model; analysis; areas; baroque; basic; castle; conception; cultural; czech; data; documentation; element; fig; functional; fund; geometric; heritage; historical; information; krumlov; main; management; model; non; prague; presentation; project; proposal; prototype; research; results; site; stage; subsystems; system; technical; technologies; theatre; university; use; virtual; vol; work; český
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        item: #975 of 1243
          id: ap-6737
      author: Agárdi, Anita; Nehéz, Károly
       title: PARALLEL MACHINE SCHEDULING WITH MONTE CARLO TREE SEARCH
        date: 2021-04-30
       words: 3170
      flesch: 69
     summary: Parallel machine scheduling problem of flexible maintenance activities with fuzzy random time windows. After that, the efficiency of the algorithms is tested with benchmark data, which result, that algorithms are suitable for solving production scheduling problems.
    keywords: algorithm; article; carlo; dates; figure; job; jobs; journal; machine; machine scheduling; maintenance; mathematical; model; monte; node; objective; opt; parallel; parallel machine; problem; production; results; scheduling; scheduling problem; search; section; sequence; setup; setup times; specific; state; table; test; times; tree
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        item: #976 of 1243
          id: ap-674
      author: Lemák, D.; Studnička, J.
       title: Influence of Ring Stiffeners on a Steel Cylindrical Shell
        date: 2005-01-01
       words: 5113
      flesch: 65
     summary: In real life, shell structures are used mainly as chimneys, tanks, pipelines and silos. More sophisticated methods for analysing, shell structures are necessary if the conditions are more com- plex.
    keywords: /2005; acta; analysis; beam; behaviour; bending; buckling; calculations; cylindrical; cylindrical shell; czech; deformation; design; diameter; distance; elements; fig; forces; gna; http://ctn.cvut.cz/ap/; internal; length; linear; loading; maximum; middle; model; moment; numerical; optimum; parameters; parametric; polytechnica; prague; ring; ring stiffeners; second; semi; shell; stability; steel; stiffeners; stress; structures; study; technical; thickness; university; vol; wind
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        item: #977 of 1243
          id: ap-6754
      author: Ton-That, Hoang Lan
       title: A COMBINED STRAIN ELEMENT TO FUNCTIONALLY GRADED STRUCTURES IN THERMAL ENVIRONMENT
        date: 2020-12-31
       words: 6049
      flesch: 64
     summary: Finite element analysis of functionally graded skew plates in thermal environment based on the new third-order shear deformation theory. [21–23] studied the behaviour of carbon nanotubes reinforced and functionally graded shells and plates respectively. 528 https://doi.org/10.14311/AP.2020.60.0528 https://ojs.cvut.cz/ojs/index.php/ap vol.
    keywords: acta; al2o3; analysis; analytical; behaviour; bending; ceramic; composite; conditions; cylindrical; deflections; deformation; dimensionless; doi:10.1016; element; engineering; environment; figure; finite; formulation; fraction; free; frequencies; graded; h/2; high; international; journal; materials; mechanical; membrane; method; new; node; numerical; order; plates; points; polytechnica; properties; results; shear; shell; si3n4; solutions; strain; strain element; strategy; structures; sus304; table; temperature; theory; thermal; ton; values; van; vibration; volume; zro2
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        item: #978 of 1243
          id: ap-676
      author: Kubátová, H.
       title: Modeling by Petri Nets
        date: 2005-01-02
       words: 4965
      flesch: 69
     summary: PN supports such approaches by abstraction techniques that are inherently compatible with the structure of the model, [9]. Definition 1: A net is a triple N = (P, T, F) where � P is a set of places � T is a set of transitions, disjoint from P, and � F is a flow relation F P T T P� � �( ) ( )� for the set of arcs. It is sometimes convenient to define the set Occ(S) of occurrence sequences to be the set of all sequences of the form m m m mn0 0 1 1 2 2 1 1, , , , , , , , ( )t t t t nn� � such that m mi ti i+ i n� � �1 0 1for { , , }� .
    keywords: ack; ackb; acta; arc; bag; colour; coloured; control; cpn; czech; definition; design; elements; fig; finite; firing; fpga; hardware; house; http://ctn.cvut.cz/ap/; implementation; input; model; net; nets; p t; petri; places; polytechnica; post; prague; pre; printer; publishing; set; signal; state; strobe; system; technical; tokens; transition; unit; university; vol
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        item: #979 of 1243
          id: ap-678
      author: Bokr, J.; Jáneš, V.
       title: Realization of Logical Circuits with Majority Logical Function as Symmetrical Function
        date: 2005-01-02
       words: 5859
      flesch: 77
     summary: x x x y x x x x( , ) , ( , ) ,3 4 5 3 4 1 20 0 0 1� � � � � � � y x x x x( , )1 3 2 50 1� � � and © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 19 Czech Technical University in Prague Acta Polytechnica Vol. 45 No. 2/2005 a) b) Fig. 6: Map entries of a) y x( )3 0� , b) y i i i( ) ( ) ( ) ( )� � � � � � � � � �1 1 0 1 the functions f x xn n m( , , , , , , )
    keywords: boolean; czech; example; fig; function; k �; s s; symmetrical; technical; university; x w; y x; y �; � s; � �
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        item: #980 of 1243
          id: ap-6786
      author: Lechman, Marek; Stachurski, Andrzej 
       title: APPLICATION OF GLOBAL OPTIMIZATION TO PREDICT STRAINS IN RC COMPRESSED COLUMNS
        date: 2021-03-01
       words: 5701
      flesch: 70
     summary: FE analysis of failure behaviour of reinforced concrete columns under eccentric compression. Effective flexural stiffness of slender reinforced concrete columns under axial forces and biaxial bending.
    keywords: a(1; a(2; acta; algorithm; axial; bending; columns; compressed; compression; concrete; cross; doi:10.1016; eccentric; eng; equations; equilibrium; experimental; failure; fcm; function; fyk; genetic; global; lechman; loading; local; matlab; members; methods; nonlinear; numerical; optimization; particle; polytechnica; problem; rectangular; reinforcement; results; section; set; sets; solutions; squares; stachurski; steel; strains; struct; structure; swarm; table; warsaw; δi1; δi2; − �; � ss
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        item: #981 of 1243
          id: ap-6789
      author: Ermis, Kemal; Caliskan, Mehmet; Tanriverdi, Muammer
       title: DESIGN OPTIMIZATION OF MOVEABLE MOMENT STABILIZATION SYSTEM FOR ACCESS CRANE PLATFORMS
        date: 2021-03-01
       words: 4628
      flesch: 58
     summary: The general structure of aerial work platforms 3 Work method 3.1 Outrigger contact force function formula 3.2 Improvement of aerial work platform structure 3.3 Mathematical model of aerial work platform 3.4 The process of structural and dynamic structural analysis 4 Results and discussion Acknowledgements References Improvement of aerial work platform structure The aim of this study is to increase the working efficiency of aerial work platforms a through lateral extension.
    keywords: acta; adams; aerial; aerial work; analysis; balancing; basket; boom; capacity; centre; chassis; contact; crane; design; determined; distance; dynamic; effect; efficiency; elements; energy; engineering; extension; figure; force; improvements; lateral; limit; load; machine; mass; mathematical; meters; model; modelling; moment; msc; optimization; platform; polytechnica; process; results; rigid; safety; sin(θ; structure; system; telescopic; tipping; turret; vehicle; weight; work; work platform; working
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        item: #982 of 1243
          id: ap-6795
      author: Darmanto, Prihadi Setyo; Astina, I Made ; Wardhana, Alfian Kusuma ; Amalia, Alfi ; Syahlan, Arief 
       title: NEW METHOD EVALUATION OF DETAIL MATERIAL AND HEAT FLOWS FOR SINGLE STRING CEMENT CLINKER PLANT
        date: 2021-03-01
       words: 11123
      flesch: 66
     summary: Heat flow of kiln feed gas resulting from the calcination process, mostly CO2, exits from SP (Eq. 19): Heat flow of kiln feed entering the SP (Eq. 11): Enkf = mkf ·hkf (Tkf ) (11) (2.)
    keywords: acta; air; analysis; astina; calcination; calciner; cement; clinker; co2; coal; combustion; conservation; consumption; convection; cooler; cooling; cyclone; darmanto; data; design; detail; dust; efficiency; energy; enf; engineering; eqs; equal; equation; equipment; evaluation; exiting; feed; feed gas; fig; flow; flue; formation; fuel; gas; heat; heat conservation; heat flow; heat loss; hhg; high; hkf; hot; international; journal; kcal; kiln; kiln feed; loss; lower; main; mass; mass conservation; mass flow; material; matrix; measurement; method; mgas−kf; mhg; modification; msep−kf; munsep_kf; new; parameters; percentage; planetary; plant; polytechnica; preheater; process; production; radiation; rate; research; results; return; separation; study; surface; system; table; technology; temperature; thg3; thg4; tkf; total; value; vol; wardhana
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        item: #983 of 1243
          id: ap-680
      author: Šoch, M.; Lórencz, R.
       title: Solving Inverse Kinematics – A New Approach to the Extended Jacobian Technique
        date: 2005-01-02
       words: 4130
      flesch: 63
     summary: A A A A� �� � �T T( ) 1 has to be utilized. 2.4 Solving Inverse Kinematics Equation (3) can be comprehended as a Linear System A x b� � (10) and thus can be solved by any appropriate method [4].
    keywords: approach; articulated; basic; behavior; computer; constraints; control; cos; czech; effector; element; extended; fig; function; inverse; inversion; jacobian; joint; kinematics; main; method; new; objective; problem; pseudo; q q; rows; segments; sin; singular; solving; standard; step; structure; technical; university; vector; vol
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        item: #984 of 1243
          id: ap-6813
      author: Cígler Žofková, Drahomíra; Frankl, Jiří; Frankeová, Dita
       title: Use of thermal analysis for the detection of calcium oxalate in selected forms of plastering exposed to the effects of Serpula lacrymans
        date: 2021-08-31
       words: 3663
      flesch: 57
     summary: Thermal measurements that followed were per- formed on mortar samples taken as part of a construc- tion and technical survey of a structure in Hrádek nad Ohří, where they had been exposed to the long-term effects of Serpula lacrymans activity. For a comparison, mortar samples taken “in situ” from real structures were also subjected to the experiment.
    keywords: acta; activity; analysis; cac2o4; caco3; calcium; calcium oxalate; cm−1; conditions; control; culture; czech; decomposition; dry; figure; formed; ftir; fungi; fungus; growth; hrádek; infrared; laboratory; lacrymans; lime; materials; measured; measurement; mortar; mortar samples; nad; oxalate; plaster; prague; production; range; results; rot; samples; serpula; serpula lacrymans; specimens; spectroscopy; structure; surface; temperature; test; thermal; thermal analysis; water; wood
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        item: #985 of 1243
          id: ap-6816
      author: Tuháček, Martin; Franek, Ondřej; Svoboda, Pavel
       title: APPLICATION OF FMEA METHODOLOGY FOR CHECKING OF CONSTRUCTION’S PROJECT DOCUMENTATION AND DETERMINATION OF THE MOST RISK AREAS
        date: 2020-11-02
       words: 4663
      flesch: 54
     summary: Experi- ence from practice proves that the processed project documentation suffers from many shortcomings, this is also confirmed by the following results of the analy- sis of expert opinions, which researches the cause of defects in construction projects [2]. In connection with the effective preparation of construction projects, we increasingly encounter the term Lean Construction
    keywords: analysis; application; areas; building; checking; company; construction; construction project; continuous; control; costs; cycle; czech; data; defects; design; documentation; eur; evaluation; expert; figure; financial; fmea; improvement; index; individual; lean; management; method; number; pdca; phase; possible; preparation; priority; process; professional; project; project documentation; quality; research; risk; rp n; system; table; time; total; use; values; volume; years
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        item: #986 of 1243
          id: ap-682
      author: Bokr, J.; Jáneš, V.
       title: Trivial Logic Arrays
        date: 2005-01-02
       words: 8803
      flesch: 72
     summary: � � � � � � �in out ext out int 2 2 Example 7: Design a PLA by means of an operating table (Table 1a) and use a synchronous flip-flop RS as a binary substitutor. 2 Cartesian product of Boolean matrices The Cartesian product M (OP) (op) M of Boolean matrices � � � � � �M q h mij: : ,1, 2, , 1, 2, , 0, 1� � �� i j � � � � � �M : , , , , , , , : ,1 2 1 2 0 1� � �h p j k jk� m denotes a Boolean matrix � � � � � �M OP op q
    keywords: array; cndf; czech; d2 �; example; function �; ij �; ijs �; input; jk �; logic; matrix; object; output; q q; q x; state; system; table; technical; university; vol; xs �; y x; y y; � ik; � j; � k; � t; � xt; � y; � �
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        item: #987 of 1243
          id: ap-6833
      author: Minchev, Dmytro S. ; Varbanets, Roman A. ; Alexandrovskaya, Nadiya I.; Pisintsaly, Ludmila V.
       title: Marine diesel engines operating cycle simulation for diagnostics issues
        date: 2021-06-30
       words: 4201
      flesch: 51
     summary: An estimation of the fuel-injection and power load irregularity by engine cylinder; (2.) The ongoing monitoring of marine diesel engines helps to detect the deviations of its parameters early and prevent major failures.
    keywords: acta; blitz; closing; combustion; compression; conditions; cycle; cylinder; data; depas; diagnostics; diesel; difference; engine; equation; exhaust; exhaust valve; experimental; figure; flow; fuel; gas; gases; handy; heat; injection; issues; man; maps; marine; mass; mathematical; maximum; measurements; minchev; model; operating; operation; parameters; polytechnica; pressure; pro; processes; results; rpm; set; simulation; speed; systems; temperature; thermodynamic; timing; transfer; turbocharger; valve; varbanets; variation; zone
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        item: #988 of 1243
          id: ap-6836
      author: Dvořáková, Ľubomíra ; Kruml, Stanislav; Ryzák, David
       title: Antipalindromic numbers
        date: 2021-06-30
       words: 5032
      flesch: 70
     summary: 6. Conclusion and open problems In this paper, we carried out a thorough study of antipalindromic numbers and described known results regarding palindromic numbers in order to draw a comparison. In this paper, we define and study antipalindromic numbers: positive integers whose expansion in a certain integer base is an antipalindrome.
    keywords: antipalindromic; antipalindromic number; base; base b; b−12; definition; digits; divisible; equal; example; expansion; following; integer; length; multi; number; number m; odd; palindromes; powers; primes; proof; results; squares; sum; theorem
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        item: #989 of 1243
          id: ap-684
      author: Korbel, S.; Jáneš, V.
       title: Implementation of a Microcode-controlled State Machine and Simulator in AVR Microcontrollers (MICoSS)
        date: 2005-01-02
       words: 4682
      flesch: 58
     summary: Keywords: state machine, microcontroller, microprogramming, software implementation of a simulator. Although we have now switched when designing microcomputers to standard circuit control units, state machines are still important.
    keywords: acta; address; application; avr; bits; command; communication; computer; control; czech; data; design; device; environment; fig; house; http://ctn.cvut.cz/ap/; implementation; individual; input; interface; items; level; machine; memory; microcode; microcontrollers; microinstruction; microprogram; outputs; polytechnica; possible; prague; program; reservoir; running; sensor; set; simulator; software; state; state machine; structure; system; technical; university; vol; water; window
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        item: #990 of 1243
          id: ap-6850
      author: Pinheiro, Paulo Henrique Barbosa de Souza; Santos, Mayara Helena Moreira Nogueira; Colombini, Angelo Cesar; França, Bruno Wanderley; Fortes, Marcio Zamboti
       title: Detailed modelling and analysis of digital mho distance relay with single-pole operation
        date: 2021-08-31
       words: 6526
      flesch: 58
     summary: An extension of an existing ground distance relay algorithm to include phase distance relays is presented in [3]. There are many types of distance relays, from electromechanical ones to the latest computer relays.
    keywords: acta; aliasing; analysis; anti; breakers; calculation; characteristic; circuit; conditions; confidence; current; data; detailed; detection; different; digital; distance; distance protection; distance relay; electrical; elements; emtdc; evaluation; fault; fault detection; figure; filter; frequency; ground; ieee; impedance; interval; line; location; mesa; mho; mho distance; modelling; operation; paper; phase; polytechnica; positive; possible; power; protection; pscad; relay; resistance; results; samambaia; scenarios; section; sequence; serra; signal; simulated; system; table; time; transform; transmission; trip; types; values; voltage; x(k; zone
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        item: #991 of 1243
          id: ap-686
      author: Fišer, P.; Kubátová, H.
       title: Pseudorandom Testing – A Study of the Effect of the Generator Type
        date: 2005-01-02
       words: 5836
      flesch: 68
     summary: LFSR patterns by the Decoder. First we show that the testability and the fault coverage achieved by a certain number of pseudo-random test vectors strictly depend on the tested circuit.
    keywords: area; automata; benchmarks; bist; cellular; circuit; code; column; coverage; cycles; czech; decoder; design; deterministic; different; distribution; faults; fig; generator; ieee; influence; iscas; lengths; lfsr; logic; matching; method; mixed; mode; number; outputs; overhead; patterns; phase; polynomial; polytechnica; prague; prpg; pseudo; random; results; seed; tap; technical; test; type; undetected; university; vectors; vol; weights; words
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        item: #992 of 1243
          id: ap-6863
      author: Samsonovich, Semen L.; Fedotov, Boris K.; Rozhnin, Nikolay B.; Goryunov, Roman V.
       title: Results of research on backlash compensation in a power electric drive by low-power electronic device
        date: 2022-04-30
       words: 4675
      flesch: 57
     summary: Keywords: Backlash, backlash compensation device, multi-motor drive, tandem control. Backlash compensation device with input of displacement signals In the well-known scheme with an input of dis- placement control channels (electromechanical spring scheme), a certain constant displacement signal is sup- plied to each channel, equal in magnitude and different in sign.
    keywords: accuracy; backlash; backlash compensation; channel; compensation device; connections; constants; control; cross; decrease; device; displacement; drive; dynamic; efficiency; electric; electric drive; electromechanical; error; error signal; figure; guidance; guidance signal; harmonic; individual; input; kinematic; method; mode; motion; motors; operation; power; research; results; scheme; second; signal; system; thrust; time; torques; values
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        item: #993 of 1243
          id: ap-688
      author: Schmidt, J.; Novotný, M.
       title: Scalable Normal Basis Arithmetic Unit for Elliptic Curve Cryptography
        date: 2005-01-02
       words: 5147
      flesch: 66
     summary: i r i� � �, , ( )1� � . The number of clock cycles necessary for one point addition or doubling is then: � � � � C m w m C m w m C const PADD MUL SQR � � � � � � � � � � � � log ( ) ( ) ( ) 2 1 1 1 1 .
    keywords: addition; algorithm; amov; area; bit; bits; clock; critical; curve; cycles; czech; data; digit; elliptic; field; fig; finite; hardware; implementation; input; inversion; itt; level; log; multiplication; multiplier; necessary; number; optimum; path; performance; point; problem; result; ror; rotations; scalability; shifter; space; squarings; step; technical; time; unit; university; vol
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        item: #994 of 1243
          id: ap-6885
      author: Diskaeva, Elena Igorevna; Vecher, Olga Vladimirovna; Bazikov, Igor Alexandrovich; Elbekyan, Karine Sergeevna; Diskaeva, Elena Nikolaevna
       title: DEPENDENCE OF THE VISCOSITY COEFFICIENT OF THE NIOSOMAL DISPERSION ON THE TEMPERATURE AND PARTICLE SIZE OF THE DISPERSED PHASE
        date: 2021-04-30
       words: 2922
      flesch: 52
     summary: The main contradictions arise with studying the dependence of viscosity on particle size. The purpose of this work was to conduct an ex- perimental study of the dependence of viscosity co- efficient of a niosomal dispersion based on PEG-12 Dimethicone on particle size and temperature.
    keywords: acta; area; average; bazikov; coefficient; concentration; delivery; dependence; diameter; dimethicone; dispersed; dispersion; drug; electron; fig; figure; formation; formula; journal; niosomal; niosomes; particle; particle size; pharmaceutical; phase; physicochemical; polytechnica; range; scanning; size; stavropol; study; systems; temperature; tissues; university; vesicles; viscosity; viscosity coefficient; volume
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        item: #995 of 1243
          id: ap-6888
      author: Aminou Moussavou, Anges A.; Raji, Atanda K.; Adonis, Marco
       title: STRATEGIC MODULATION OF THERMAL TO ELECTRICAL ENERGY RATIO PRODUCED FROM PV/T MODULE
        date: 2021-04-30
       words: 5804
      flesch: 57
     summary: PV cell power dissipation as a function of Rse The parameters representing the PV cell’s internal properties are comprised of a diode, series resistance and parallel resistance. Analysis of solar PV cell performance with changing irradiance and temperature.
    keywords: acta; adonis; analysis; cell; change; characteristics; circuit; conditions; conduction; current; curve; different; dissipation; efficiency; electrical; electrical energy; electrical power; energy; engineering; equation; extrinsic; figure; function; generated; heat; high; impact; increases; journal; losses; material; maximum; model; module; open; parameters; performance; photovoltaic; polytechnica; power; pv cell; pv module; pv power; qcond; radiation; raji; ratio; renewable; resistance; results; rse; series; simulation; solar; solar cell; sustainable; system; technique; temperature; thermal; transfer; useful; voc; voltage; water
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        item: #996 of 1243
          id: ap-6889
      author: Chudoba, Josef; Královcová, Jiřina; Landa, Jiří ; Maryška, Jiří; Říha, Jakub
       title: A model of isotope transport in the unsaturated zone, case study
        date: 2022-08-31
       words: 7204
      flesch: 60
     summary: A prediction of radionuclide concentration distribution in groundwater is done by transport simulations along with groundwater flow simulations (both mainly in saturated zone). [6] used in this field do allow for transport simulation in the unsaturated zone, but they show numerical instabilities in the case of dynamically changing flow boundary condition.
    keywords: acta; amounts; article; biosphere; boundary; case; coefficient; concentration; condition; constant; contamination; data; deep; depth; diffusion; distribution; domain; equation; evaporation; evolution; figure; flow; flux; form; groundwater; head; implementation; infiltration; initial; isotope; level; liquid; model; model domain; m−3; near; parameters; phase; polytechnica; precipitation; pressure; radionuclide; repository; results; simulation; simulation time; soil; solution; source; step; studies; study; surface; s−1; time; transport; unsaturated; unsaturated zone; values; water; zone
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        item: #997 of 1243
          id: ap-690
      author: Buček, J.; Hlaváč, J.; Matušková, M.; Lórencz, R.
       title: Cost-Effective Architectures for RC5 Brute Force Cracking
        date: 2005-01-02
       words: 4036
      flesch: 68
     summary: A A S i� �( [ ])2 � �B B� ; B B S� � [ ]1 ; The plaintext is assumed to be in A and B. A A S� � [ ]0 ; B B S� � [ ]1 ; for i � 1 to r do A A B� �( ) � �B S i� [ ]2 ; B B A� �( ) � �A S i� �[ ]2 1 ; 3 Current cracking efforts 3.1 Distributed.net The most well-known project aiming to crack the RC5 challenges is organized by Distributed Computing Techno- logies, Inc.
    keywords: algorithm; architecture; array; asic; attacker; bit; bits; block; brute; cost; cpu; cracking; czech; data; decryption; design; distributed.net; element; expansion; fig; force; fpga; general; hardware; key; number; pipelined; prague; purpose; rate; rc5; registers; results; round; secret; section; sequential; structure; table; technical; time; university; vol
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        item: #998 of 1243
          id: ap-6903
      author: Senthilkumar, Jadamuni; Kumar, Pavan S. M.; Balasubramanian, Manickam
       title: An Investigation of corrosion of friction welded and post-weld heat-treated AA6061/SiC/graphite hybrid composites
        date: 2021-06-30
       words: 4441
      flesch: 55
     summary: Sriram Vikas et al. studied the influence of post-weld heat treatment (PWHT) and pitting corrosion behaviour of dissimilar aluminium alloy friction stir welds. Corrosion behavior of alumina-aluminum and silicon carbide-aluminum metal-matrix composites.
    keywords: aa6061; alloy; aluminium; balasubramanian; behaviour; composites; continuous; corrosion; corrosion behaviour; corrosion rate; corrosion resistance; effect; fig; figure; fine; friction; grain; graphite; heat; high; hybrid; intermetallic; joints; journal; kumar; loss; materials; matrix; mechanical; metal; microstructure; particles; pitting; post; precipitates; process; rate; region; reinforcement; resistance; samples; senthilkumar; sic; silicon; solution; specimens; sta; stir; treatment; weld; welding
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        item: #999 of 1243
          id: ap-692
      author: Bečvář, M.; Štukjunger, P.
       title: Fixed-Point Arithmetic in FPGA
        date: 2005-01-02
       words: 3264
      flesch: 54
     summary: This figure shows, and it is also valid in general, that serial mode multipliers consume considerably a smaller area than parallel mode multipliers. Fixed-point multipliers can be divided into two groups by the type by their operation: serial mode multipliers and par- allel mode multipliers.
    keywords: adder; area; arithmetic; bit; carry; chain; consumption; czech; delay; features; fpga; implementation; implemented; mode; mode multipliers; multipliers; number; operations; parallel; point; prague; response; results; serial; slices; speed; structures; support; technical; time; university; virtex; width; xilinx
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        item: #1000 of 1243
          id: ap-6922
      author: Daniyan, Ilesanmi; Ale, Felix; Uchegbu, Ikenna Damian ; Bello, Kazeem ; Osazele, Momoh
       title: Process optimization and performance evaluation of a downdraft gasifier for energy generation from wood biomass
        date: 2021-10-31
       words: 8802
      flesch: 56
     summary: [22] reported on the prediction of a high-temperature rapid combustion behaviour of wood biomass particles using a modelling and simulation approach. This work considers the process optimization and performance evaluation of a downdraft gasifier, suitable for energy generation using wood biomass.
    keywords: acta; addition; air; analysis; biomass; carbon; char; chips; combustion; composition; concentration; content; conversion; conversion process; daniyan; design; developed; development; downdraft; drying; effect; efficiency; energy; energy generation; engine; engineering; et al; evaluation; experiments; fact; figure; fuel; function; gas; gas yield; gasification; gasifier; generation; heating; hydrogen; increase; min; model; moisture; nm3; numerical; optimization; optimum; parameters; particle; particle size; performance; physical; plot; polytechnica; process; process optimization; process parameters; producer; producer gas; production; range; rate; reaction; renewable; residence; residence time; results; significant; size; study; system; table; tar; temperature; thermal; time; value; vol; wood; wood biomass; yield
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        item: #1001 of 1243
          id: ap-6930
      author: Berka, Jan; Ballek, Jakub Vojtěch; Velebil, Ladislav; Purkarová, Eliška; Vagenknechtová, Alice; Hlinčík, Tomáš
       title: CO2 power cycle chemistry in the CV Řež experimental loop
        date: 2021-08-31
       words: 3573
      flesch: 49
     summary: The development technology and applications of supercritical CO2 power cycle in nuclear energy, solar energy and other energy industries. Performance and economic evaluation of supercritical CO2 power cycle coal gasification plant, 2014.
    keywords: carbon; carbon dioxide; chemistry; co2; co2 power; compounds; consumption; control; coolant; cycle; czech; dioxide; efficiency; energy; experimental; figure; gas; heat; helium; high; impurities; journal; loop; maximum; medium; methods; mpa; nuclear; oil; operation; organic; power; power cycles; pressure; project; purification; purity; reactors; sajadian; section; supercritical; supercritical carbon; system; table; technologies; technology; temperature; test; řež
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        item: #1002 of 1243
          id: ap-6935
      author: Suk, Tomáš; Štroner, Martin
       title: The impact of the air temperature on measuring the zenith angle during the year in the ground layer of the atmosphere for the needs of engineering surveying
        date: 2021-06-30
       words: 6253
      flesch: 57
     summary: 18, pp. 837 – 844. 488 https://doi.org/10.3846/1392-1541.2008.34.61-65 https://doi.org/10.14311/AP.2016.56.0138 Acta Polytechnica 61(3):476–488, 2021 1 Introduction 2 Equipment and experiment 2.1 Equipment 2.1.1 Resistance temperature detector 2.1.2 Datalogger 2.1.3 Shielding and supporting structure 2.1.4 Analysis of the accuracy of temperature measurement of the whole system 2.2 Experiment 2.2.1 Measurement results 2.2.2 Determination of temperature gradient 2.3 Calculations 2.4 Differential equation of the passage of a wave-path 2.4.1 Barrel-Sears formula 2.4.2 Iterative calculation of path 3 Results 3.1 Vertical shifts 4 Real beam trajectory 5 Discussion 6 Conclusion Acknowledgements References Analysis of the accuracy of temperature measurement of the whole system From the above permitted deviations ∆TL and ∆TS, the standard deviations of the logger σL and the sen- sor σS can be calculated using the law of standard deviation transmission σS = ∆TS 2 = approx.
    keywords: accuracy; acta; air; angle; atmosphere; beam; calculated; calculation; change; conditions; curve; data; day; days; determination; determined; deviation; effect; engineering; example; experiment; fig; figure; geodesy; geodetic; gon; gradient; ground; height; impact; index; influence; international; line; logger; martin; measured; measurement; measuring; method; path; point; polytechnica; possible; pressure; range; real; refraction; resistance; results; sensor; shifts; specific; standard; straight; structure; sunny; surface; surveying; temperature; temperature gradient; time; tomáš; trajectory; use; values; vertical; vol; year; zenith; štroner
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        item: #1003 of 1243
          id: ap-694
      author: Tan, J. K.
       title: Elicitation of Preference Structure in Engineering Design
        date: 2005-01-03
       words: 3152
      flesch: 50
     summary: The selection of the most preferred design solution(s) from a set of efficient design solutions is a subjective matter and depends on the decision maker’s preference. Multiple Criteria Decision Making addresses synthesis and analysis processes through multiple objective optimisation to generate sets of efficient design solutions (i.e. on Pareto surfaces) and multiple attribute decision making to analyse and select the most preferred design solution(s).
    keywords: alternatives; analysis; approach; attributes; criteria; czech; decision; design; designer; efficient; elicitation; engineering; example; fig; learning; maker; making; measures; methods; multiple; optimisation; performance; pitch; preference; preference structure; problem; process; rbm; search; set; solutions; structure; technical; university; utility; vol
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        item: #1004 of 1243
          id: ap-6953
      author: Nafa, Fares ; Boudouda, Aimad ; Smaani, Billel 
       title: ADAPTIVE WAVELETS SLIDING MODE CONTROL FOR A CLASS OF SECOND ORDER UNDERACTUATED MECHANICAL SYSTEMS
        date: 2021-04-30
       words: 6658
      flesch: 65
     summary: Adaptive wavelets sliding mode control. . Adaptive wavelets sliding mode control. .
    keywords: acta; adaptation; adaptive; addition; algorithm; analysis; approach; approximation; arm; awsmc; class; control; controller; convergence; cos; descent; design; dynamics; error; figure; following; form; function; fuzzy; gradient; ideal; ieee; input; international; jc∑; journal; laws; lyapunov; mechanical; mode; mode control; nafa; network; nonlinear; order; paper; parameters; pendubot; pendulum; polytechnica; position; qs2; resolution; response; results; second; section; smc; stability; strategies; strategy; systems; ṡ1; ṡ2; time; ums; underactuated; unknown; use; vector; vol; wavelets; αsgn
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        item: #1005 of 1243
          id: ap-696
      author: Crostack, H.-A.; Höfling, M.; Liangsiri, J.
       title: Simulation in Quality Management – An Approach to Improve Inspection Planning
        date: 2005-01-03
       words: 4867
      flesch: 56
     summary: Tannock [1] developed a simulation model in order to evaluate inspection strategies according to process capability and cost of quality (COQ). Keywords: simulation, quality, inspection strategies, manufacturing process.
    keywords: acta; arena; capability; characteristic; company; cost; cycle; czech; different; distribution; equipment; example; failure; fig; good; house; http://ctn.cvut.cz/ap/; inspection; inspection strategies; lot; manufacturing; method; model; parts; polytechnica; prague; process; processes; product; production; publishing; quality; quinte; results; rework; sampling; scrap; simulation; strategies; strategy; technical; time; tool; university; value; vol
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        item: #1006 of 1243
          id: ap-6968
      author: Rindt, Karin; Hrdlička, František; Novotný, Václav 
       title: Preliminary prospects of a Carnot-battery based on a supercritical CO2 Brayton cycle
        date: 2021-10-31
       words: 7330
      flesch: 57
     summary: As a part of the change towards a higher usage of renewable energy sources, which naturally deliver the energy intermittently, the need for energy storage systems is increasing. Keywords: Pumped thermal energy storage (PTES), Carnot-battery, power-to-heat-to-power (P2H2P), supercritical CO2 cycle, Brayton cycle, heat exchange, pinch-point analysis.
    keywords: acta; analysis; battery; brayton; brayton cycle; capacity; carnot; co2; cold; cold storage; cycle; difference; discharging; efficiency; electric; energy; energy storage; exchanger; figure; flow; fluid; heat; heat exchanger; high; higher; hot; hot storage; hrdlička; layout; low; mass; material; maximum; minimum; mpa; novotný; pinch; point; polytechnica; possible; power; preliminary; pressure; prospects; ptes; pump; ratio; recompressed; recuperation; reduced; renewable; results; rindt; round; sco2; solar; storage; supercritical; system; tank; temperature; temperature difference; thermal; thermal energy; transfer; trip; trip efficiency; vol; wind; wnet; working
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        item: #1007 of 1243
          id: ap-698
      author: Ríos, J.; Jiménez, J. V.; Pérez, J.; Vizán, A.; Menéndez, J. L.; Más, F.
       title: KBE Application for the Design and Manufacture of HSM Fixtures
        date: 2005-01-03
       words: 5680
      flesch: 55
     summary: This is the main reason why much research work focuses on specific issues of fixture design (locating and clamping lay- out, fixture force analysis, fixture tolerances analysis, etc.), and address a specific kind of fixtures, e. g., modular fixtures, or consider only parts with a specific kind of geometry, e. g., prismatic forms. 2 Automating the design of fixtures As stated previously, automation of fixture design has been pursued for several years.
    keywords: acta; aeronautical; analysis; application; base; catia; complexity; components; curves; czech; design; design process; designer; development; different; drawing; elements; example; fig; files; fixture; fixture design; general; generation; geometric; geometry; holes; house; hsm; http://ctn.cvut.cz/ap/; icad; information; kbe; kernel; kind; knowledge; language; machining; main; material; modelling; order; particular; parts; polytechnica; prague; process; project; publishing; raw; reasoning; rules; solution; specific; systems; technical; tool; university; use; vacuum; vol; work
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        item: #1008 of 1243
          id: ap-700
      author: Song, H.; Eynard, B.; Lafon, P.; Roucoules, L.
       title: Towards Integration of CAx Systems and a Multiple-View Product Modeller in Mechanical Design
        date: 2005-01-03
       words: 4149
      flesch: 54
     summary: Product modelling has been recognized as an effective tech- nique for facilitating the representation and management of product data. In such a situation, product modelling oriented to functional design has been widely studied.
    keywords: approach; behaviour; cad; catia; conceptual; customer; czech; data; design; detail; development; different; embodiment; engineering; exchange; fig; file; float; framework; functional; geometric; implementation; information; integration; knowledge; level; linking; modeller; modelling; models; module; multiple; neutral; optimisation; phase; process; product; representation; requirements; research; roucoules; step; structure; systems; technical; university; view; vol
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        item: #1009 of 1243
          id: ap-7011
      author: Solnař, Stanislav; Medek, Jan; Suleiman, Abubakar Shola; Vyhlídal, Patrik
       title: On a static and dynamic calibration of thermochromic liquid crystals
        date: 2021-08-31
       words: 5067
      flesch: 54
     summary: For TLC measurements, it is also very important to find out if there is only one colour in the image or if the evaluated image is composed of many different Hue values (colours). However, a very important part of accurate TLC measurements is also their calibration, which is necessary for each applied layer.
    keywords: accurate; angle; application; behaviour; calibration; calibration curve; camera; changes; colour; crystals; curve; czech; data; delay; dependence; deviations; different; dominant; dynamic; effect; experiment; figure; heat; hue; illumination; image; intensity; layer; light; liquid; measured; measurement; measuring; method; plate; possible; prague; prepared; range; reference; rgb; sensitivity; static; surface; temperature; thermochromic; time; tlc; tlc layer; tlcs; use; value; water
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        item: #1010 of 1243
          id: ap-702
      author: Mullineux, G.; Hicks, B.; Medland, T.
       title: Constraint-Aided Product Design
        date: 2005-01-03
       words: 3836
      flesch: 55
     summary: Keywords: constraint modelling, design knowledge, synthesis, product design, product families. posed by resources. 3: Modelling a four bar/six bar straint-aided process for product design.
    keywords: acta; approach; assembly; best; constraint; constraint rules; czech; design; design knowledge; early; engineering; example; fig; function; house; ideas; important; knowledge; model; modelling; number; parameters; parametric; particular; polytechnica; preliminary; process; product; product design; publishing; requirements; rules; set; solution; space; specification; stages; technical; techniques; university; values; variables; variants; vol
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        item: #1011 of 1243
          id: ap-704
      author: Humble, R.; Millward, H.; Mumby, A.; Price, R.
       title: The Design and Development of Enhanced Thermal Desorption Products
        date: 2005-01-03
       words: 4466
      flesch: 53
     summary: Keywords: thermal desorption, product design, SME. and development techniques is reported in terms of deve- lopment times and project costs, and the wider implications for new product development within small companies are discussed. All the PDR-based KTP programmes are, or have been, fo- cused on product design, and the numbers reflect the UK trend in that the majority have been based in SMEs.
    keywords: acta; analysis; cad; cold; cold trap; companies; company; cooling; czech; design; desorption; development; fig; heated; house; http://ctn.cvut.cz/ap/; impact; international; key; ktp; management; manufacturing; materials; model; module; need; new; new product; order; pdr; pds; performance; phase; polytechnica; prague; process; product; product design; product development; programme; range; research; sample; small; smes; systems; technical; techniques; temperature; thermal; thermal desorption; tools; transfer; trap; trap module; university; valve; vol
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        item: #1012 of 1243
          id: ap-7041
      author: Karpiuk, Vasyl; Somina, Yuliia; Karpiuk, Fedir; Karpiuk, Irina
       title: Peculiar aspects of cracking in prestressed reinforced concrete T-beams
        date: 2021-10-31
       words: 6130
      flesch: 59
     summary: The theoretical pre-condition of PC is based on the theory of experiment planning, the theory of mathematical 635 V. Karpiuk, Y. Somina, F. Karpiuk, I. Karpiuk Acta Polytechnica I – transfer of prestressing in reinforcement to concrete; II – formation of normal cracks in the zone of pure bending; III – growth of normal cracks and the formation of inclined cracks in shear spans; IV – development of normal and inclined cracks with an intersection of compressed beam flange and formation of new inclined cracks; V.A) – the beam destruction with the displacement of area near the support and with the reinforcement kink; V.B) – the beam destruction due to the prevailing action of the bending moment; V.C) – the beam destruction due to the crushing of the beam rib concrete Figure 3. from 2 to 4 and increasing the thickness ratio of the table overhangs to the working height h/f /h0 from 0.18 to 0.36, the opening width of normal cracks will increase by 14 %, and the opening width of inclined cracks will decrease by 21 and 23|,%.
    keywords: beam; bending; compressed; concrete; cracking; cracks; dangerous; dangerous inclined; data; destruction; elements; experimental; factors; formation; inclined; inclined cracks; increase; increasing; influence; karpiuk; level; load; models; moment; normal; normal cracks; opening; overhangs; prestressed; prestressing; projection; ratio; reinforcement; relative; resistance; rib; section; shear; shearing; span; strength; structures; support; table; test; thickness; transverse; value; width; zone; σsp
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        item: #1013 of 1243
          id: ap-7051
      author: Djendaoui, Dahmane; Benaissa, Amar; Rabhi, Boualaga ;  Zellouma, Laid
       title: Self tunning filter for three levels four legs shunt active power filter with fuzzy logic controller
        date: 2021-06-30
       words: 4596
      flesch: 66
     summary: 7. DC capacitors voltages stabilization To achieve the balance of two input voltages, improve the performance of active power filters and avoid a potential drift of the neutral point (NP), a stabiliza- tion bridge system shown in Fig 8 is inserted. Optimization-based strategy for shunt active power filter control under non-ideal supply voltages.
    keywords: acta; active; apf; benaissa; component; conditions; control; controller; current; diagram; distorted; figure; filter; fuzzy; harmonic; ieee; instantaneous; inverter; leg; legs; levels; linear; load; logic; method; neutral; non; nonlinear; phase; polytechnica; power; proposed; p−q; rabhi; reactive; reference; self; shunt; source; stf; system; theory; unbalanced; voltage
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        item: #1014 of 1243
          id: ap-706
      author: Tichánek, R.; Španiel, M.; Diviš, M.
       title: Structural Stress Analysis of an Engine Cylinder Head
        date: 2005-01-03
       words: 2643
      flesch: 56
     summary: cylinder head assembly lies on the cylinder, and it is fixed with six pre-pressed bolt connections. The dependency of the heat- -transfer coefficient on surface temperature is shown in Fig.
    keywords: analysis; assembly; boundary; coefficient; combustion; conditions; contact; cooling; cylinder; cylinder head; czech; engine; exhaust; fig; guides; head; head assembly; heat; intake; measured; model; parts; polytechnica; prague; pressure; regions; seats; surface; technical; temperature; thermal; transfer; university; valve; vol
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        item: #1015 of 1243
          id: ap-7070
      author: Awang, Fatin Farhana; Hassan, Mohd Faiz; Kamarudin, Khadijah Hilmun
       title: Corn starch doped with sodium iodate as solid polymer electrolytes for energy storage applications
        date: 2021-08-31
       words: 4268
      flesch: 60
     summary: wt. % of NaIO3 and (b) 9 wt. % of NaIO3 SPE films. The effect of dopants on the structure, morphology and electrical properties of SPE films was analysed using X-Ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS) analysis.
    keywords: acta; addition; amorphous; applications; applied; blend; bulk; cole; conductivity; content; corn; effect; electrical; electrochemical; electrolyte; figure; films; hassan; higher; impedance; increase; iodate; ion; ionic; ions; journal; lithium; materials; morphology; naio3; polymer; pores; properties; resistance; results; salt; science; sem; sodium; solid; solution; spe; spe films; starch; structure; study; surface; system; technique; temperature; values; wt.%; xrd
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        item: #1016 of 1243
          id: ap-708
      author: Hoehn, B.-R.; Steingroever, K.; Jaros, M.
       title: Modelling a New Product Model on the Basis of an Existing STEP Application Protocol
        date: 2005-01-03
       words: 4298
      flesch: 60
     summary: 4.2 Standardized specification for the product model for gear units The main problem in using STEP AP 214 for gear data is the lack of any standardization. Therefore the product model for gear units developed by FZG contains clear definitions how to use AP 214 for defining gear data.
    keywords: 214; application; bearings; calculation; converter; czech; data; definitions; elements; entity; exchange; fig; format; fva; gear; gear data; gear units; german; helical; iso; item; model; new; objects; parts; process; product; product model; programs; property; protocol; research; self; standard; step; structure; technical; time; units; university; values
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        item: #1017 of 1243
          id: ap-7080
      author: Zarei, Najmeh; Anvar, Seyed Ahmad; Goenezen, Sevan
       title: Subjective approach to optimal cross-sectional design of biodegradable magnesium alloy stent undergoing heterogeneous corrosion
        date: 2021-10-31
       words: 5787
      flesch: 57
     summary: Introduction Recently, using magnesium alloy stents in clinical treatments has become relatively common owing to their biosafety, biocompatibility, superior mechani- cal properties, and comparatively larger stiffness than other metallic and polymeric biodegradable stents. and stiffness of the stent are the main mechanical characteristics of biodegradable stents, and any at- tempt to improve these properties reduces the risk of restenosis
    keywords: acta; alloy; approach; artery; balloon; biodegradable; cluster; coronary; corresponding; corrosion; cross; damage; degradation; design; diameter; different; element; engineering; et al; fig; figure; finite; geometry; grogan; loss; magnesium; mas; mass; material; mechanical; model; numerical; optimal; optimization; optimum; percentage; performance; pitting; plaque; polytechnica; present; process; profile; properties; radial; recoil; results; ring; scaffolding; sectional; shows; simulation; srp; srs; st.19; st.24; stent; stiffness; stress; study; subjective; table; thickness; time; variation; vessel
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        item: #1018 of 1243
          id: ap-7082
      author: Parkhats, Vadzim; Krzywoń, Rafał; Hulimka, Jacek; Kubica, Jan
       title: Determination of bond model for 7-wire strands in pretensioned concrete beam
        date: 2021-12-31
       words: 4313
      flesch: 66
     summary: [2] contains bond models for ribbed and plain reinforcing bars, but not for prestressing strands. In this paper, a review of bond models for tendons found in the literature is done.
    keywords: aramis; beam; bond; bond model; bond stress; code; concrete; correlation; determination; digital; distributions; element; end; equation; et al; experimental; figure; finite; image; length; model; modelling; mpa; prestressed; prestressing; pretensioned; relationship; release; results; ribbed; slip; steel; strain; strands; strength; stress; structures; tendons; tests; values; wire; τmax
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        item: #1019 of 1243
          id: ap-7088
      author: Bodnár, Tomáš; Dvořák, Rudolf
       title: FOREWORD
        date: 2021-02-10
       words: 1457
      flesch: 44
     summary: He was a long-term member and later the head of the Department of Technical Mathematics at the Faculty of Mechanical Engineering of the Czech Technical University in Prague. Professor Karel Kozel devoted himself to applied mathematics throughout his life and became probably the most authentic successor of the school, that was founded at CTU by Professor Polášek, whose goal and purpose was the direct use of mathematics in solving specific problems of technical practice.
    keywords: acta; applied; czech; department; drsc; engineering; faculty; flow; fluid; institute; karel; kozel; mathematics; member; prague; professional; professor; research; school; technical; thermomechanics; university
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        item: #1020 of 1243
          id: ap-7089
      author: Bodnár, Tomáš; Dvořák, Rudolf
       title: PŘEDMLUVA
        date: 2021-02-10
       words: 1148
      flesch: 66
     summary: V roce 1964 přešel na Katedru matematiky Fakulty strojní ČVUT v Praze jako odborný asistent. ledna 2021 dlouholetý profesor ČVUT v Praze a vědecký pracovník ÚT AVČR Profesor Karel Kozel je významný český matematik a pedagog, který se po celý svůj život věnoval aplikované a zvláště numerické matematice.
    keywords: acta; aplikované; avčr; byl; byla; celý; drsc; dále; fakulty; fjfi; jako; jeho; jejich; karel; karla; kozel; kozla; matematiky; např; numerické; pak; polytechnica; pracovníky; praze; profesor; proudění; působil; rndr; roce; roku; spolupráce; svůj; technické; tekutin; termomechaniky; vedl; vedoucím; významně; věnoval; úspěšně; ústavu; činnost; členem; čvut; život
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        item: #1021 of 1243
          id: ap-710
      author: Valášek, M.; Bauma, V.; Šika, Z.
       title: Study of Concepts of Parallel Kinematics Machines for Advanced Manufacturing
        date: 2005-01-03
       words: 1982
      flesch: 58
     summary: If the platform is just a fraction of the frame cube (e.g. 1:5), then the ratio between the workspace and the machine space is much better than for other parallel kinematics concepts. 2 Full parallel kinematics machines In full parallel kinematics machines, all DOFs are realized by the motion of the platform, and the platform is suspended by parallel links with drives on the frame.
    keywords: concept; czech; design; dofs; fig; forming; head; kinematics; links; machines; mechanism; metal; motions; new; parallel; pkm; pkms; platform; redundant; sided; swivel; technical; university; workspace
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        item: #1022 of 1243
          id: ap-712
      author: Alkin, C.; Imrak, C. E.; Kocabas, H.
       title: Solid Modeling and Finite Element Analysis of an Overhead Crane Bridge
        date: 2005-01-03
       words: 3889
      flesch: 68
     summary: In this study, the calculations apply the F. E. M. rules and DIN standards, which are used for box girder crane bridges. Keywords: overhead crane, finite element method, solid modeling, box girder. and bridges travelling on rails.
    keywords: acta; analysis; box; bridge; crane; czech; decimal; design; displacement; distance; dynamic; element; fig; finite; finite element; girder; load; maximum; method; midpoint; mm2; model; modeling; node; overhead; overhead crane; places; plate; polytechnica; quadratic; rules; shell; solid; stress; study; system; technical; tetrahedral; trolley; university; value; vol; weight
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        item: #1023 of 1243
          id: ap-714
      author: Bicak, M. M. A.; Belek, H. T.; Göksenli, A.
       title: Vibration Damping of a New Ionic Liquid under Electric Field Effect
        date: 2005-01-03
       words: 2390
      flesch: 54
     summary: Ionic liquids are salts which are fluids at around room tem- perature. Ionic liquids show unusual physical proper- ties such as high ionic conductivity and powerful solution efficiency for various organic and inorganic substrates.
    keywords: acta; conductivity; czech; damping; effect; electric; electrorheological; field; fig; fluids; high; house; http://ctn.cvut.cz/ap/; ionic; liquid; low; magnetic; new; particles; polytechnica; prague; properties; publishing; room; systems; technical; temperature; university; viscosity; vol
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        item: #1024 of 1243
          id: ap-716
      author: Novotný, J.; Nožička, J.; Adamec, J.; Nováková, L.
       title: Measurement of Two Phase Flow
        date: 2005-01-03
       words: 1787
      flesch: 63
     summary: Keywords: two phase flow, condensation, wet steam, IPI measurement. Fig. The price has to be under $1000 � It must be suitable for IPI measurement © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 73 Czech Technical University in Prague Acta Polytechnica Vol. 45 No. 3/2005 Measurement of Two Phase Flow J. Novotný, J. Nožička, J. Adamec, L. Nováková
    keywords: able; area; camera; ccd; chambers; condensation; course; czech; fig; flow; ipi; light; measurement; method; overheater; particle; prague; pressure; size; source; steam; technical; temperature; university; water
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        item: #1025 of 1243
          id: ap-718
      author: Coiro, D. P.; Marco, A. De; Nicolosi, F.; Melone, S.; Montella, F.
       title: Dynamic Behaviour of the Patented Kobold Tidal Current Turbine: Numerical and Experimental Aspects
        date: 2005-01-03
       words: 4538
      flesch: 63
     summary: Across the actuator disk the pressure drops and this drop is equivalent to the streamwise force dF on the actuator disk divided by the actuator disk area dA. The elementary force dFu and dFd, respectively on the up- wind and downwind disk, given by the momentum principle, are d du u uF V A V V� ��� ( )2 (1) The rotor has a diameter of 6 meters with 6 radial arms holding three blades with a five-meter span and with a chord of 0.4 m employing the H-LIFT18 airfoil leading to an aspect ratio of 12.5 and to solidity � � 0.4.
    keywords: acta; actuator; aerodynamic; airfoil; angle; axis; blade; chord; coefficient; cos; current; czech; data; disk; downwind; dpa; energy; experimental; fig; hinge; house; http://ctn.cvut.cz/ap/; kobold; lift; model; moment; naca; numerical; performances; pitch; polytechnica; power; prague; publishing; range; results; rotor; sen; solidity; speed; streamtube; tan �; technical; tidal; torque; turbine; university; upwind; v v; variable; vawt; velocity; vertical; vol; wind
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        item: #1026 of 1243
          id: ap-7190
      author: Hevko, Roman; Zalutskyi, Sergii; Tkachenko, Ihor; Lyashuk, Oleg; Trokhaniak, Oleksandra
       title: Design development and study of an elastic sectional screw operating tool
        date: 2021-10-31
       words: 4892
      flesch: 57
     summary: The works of [10, 11] are dedicated to the develop- ment of screw operating tools with an elastic surface and their theoretical and experimental research. Design scheme (A) and general view (B) of screw operating tool with overlapping elastic sections.
    keywords: agricultural; analysis; angle; auger; bulk; conveyor; damage; design; development; elastic; end; engineering; experimental; figure; general; grain; hevko; installation; mandrel; material; method; operating; operating tool; output; parameters; power; process; production; rate; research; response; ribbon; roller; rpm; screw; screw conveyor; screw operating; sectional; sections; stack; surface; technical; technological; ternopil; times; tool; transportation; tube; value
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        item: #1027 of 1243
          id: ap-720
      author: Fošumpaur, P.; Čihák, F.
       title: Design and Optimization of a Turbine Intake Structure
        date: 2005-01-03
       words: 2633
      flesch: 63
     summary: (3) The equation of turbulent kinetic energy k is � � � � � � � � � � � � k t C k k k C k k � � � � � � � � � � � � � � � � � � � � � 2 2 u (� �u) .2 �� (4) And the equation of turbulent energy dissipation �: � �� � � � � � � � � � � � � � t C k C C k � � � � � � � � � � � � � � � � � � � � � 2 u 1 ( ) . The basic description of the fluid flux is given by the two Navier-Stokes equations [5] � � � � � � � � � u t u x u p x ui i j j i i� � � � � 1 2 (1) and the continuity equation � �u 0 (2) where ui is the velocity vector component in the direction of the xi axis, � density �m3�s�1], p hydrostatic pressure [Pa], � dynamic viscosity
    keywords: angle; area; czech; design; equations; fig; flow; flux; inlet; layout; modelling; pier; plant; power; power plant; river; scenario; shape; solution; technical; turbine; turbulent; university; velocity; water; weir; width
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        item: #1028 of 1243
          id: ap-7211
      author: Franek, Ondřej; Jarský, Čeněk
       title: On reducing CO2 concentration in buildings by using plants
        date: 2021-10-31
       words: 4702
      flesch: 49
     summary: The present research describes the effect of plant implementation according to different levels of CO2 concentration of the supply air, specifically with values of 410 ppm corresponding to the year 2020, 550 ppm to the year 2050 and 670 ppm to the year 2100, as well as according to different levels of CO2 concentration in the indoor environment, namely 1000 ppm and 1500 ppm, the illumination of plants in the indoor environment is constant in the model, PPFD equals to 200 µmol m−2 s−1. Based on the performed studies, it is assumed that this finding raises a potential problem in the future with main- taining the required quality of the indoor environment in terms of CO2 concentration with an economic sus- tainability of operation, especially in situations with a requirement for a high quality indoor environment.
    keywords: ability; air; area; buildings; case; co2; co2 concentration; concentration; creq; effect; green; high; h−1; implementation; increase; indoor air; indoor environment; influence; leaves; lighting; maximum; model; m−2; m−3; necessary; office; outdoor; plants; point; pollutant; ppfd; ppm; quality; required; requirement; room; significant; simulation; supply; supply air; s−1; total; values; ventilation; year; µmol
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        item: #1029 of 1243
          id: ap-722
      author: Macdonald, M.; Rhodes, J.
       title: Finite Element Modelling of Cold Formed Stainless Steel Columns
        date: 2005-01-03
       words: 3785
      flesch: 57
     summary: 5.2 Compression tests In the experimental investigation a series of compression tests to failure were made on stainless steel columns of the lipped channel cross-section as described above. Stress-strain curves derived from tests and design codes are incorporated into non-linear finite element analyses of eccentrically loaded columns and the results obtained are compared with those obtained on the basis of experiments on stainless steel channel columns with the same properties and dimensions.
    keywords: analysis; asce; capacity; channel; codes; cold; columns; concentric; cross; czech; design; eccentric; element; equation; fig; finite; length; linear; lipped; load; loaded; loading; material; non; predictions; properties; results; section; stainless; stainless steel; steel; strain; strength; stress; technical; tensile; tests; university; virgin; yield
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        item: #1030 of 1243
          id: ap-724
      author: Holický, M.
       title: Fuzzy Optimisation of Structural Performance
        date: 2005-01-03
       words: 4780
      flesch: 46
     summary: For r2 /r1 � 5 it follows from Fig. 3 that for �R � �S � 0.1 r1 the optimum mean is �S � r1 (which is equal to 0.02 ms�2). If the cost ratio CD /C0 is 10 4, then for r2 /r1 � 3 (Fig. 2) and, as above for �R � �S � 0.1 r1, the optimum mean �S of the load effect is about 0.63 r1 (0.0136 ms �2), for r2 /r1 � 5 (Fig. 3) the optimum mean �S of the load effect is about 0.72 r1 (0.0144 m s�2).
    keywords: /c0; acceleration; action; assessment; building; concepts; cost; czech; damage; data; design; deviation; effect; engineering; equation; example; failure; fig; function; fuzziness; fuzzy; limit; load; lower; mean; model; optimisation; optimum; perception; performance; point; probabilistic; probability; public; r(x; randomness; relevant; requirements; standard; structural; technical; university; upper; value; vibration
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        item: #1031 of 1243
          id: ap-726
      author: Zítek, P.; Vyhlídal, T.
       title: Model Based Control of Moisture Sorption in a Historical Interior
        date: 2005-01-04
       words: 5209
      flesch: 48
     summary: In general, the dynamics of the interior air humidity can be considered subject to the model � � � �V x t t Q x t x t S x t x t q tI L E I x W W I M� � d d ( ) ( ) ( ) ( ) ( ) ( )� � � � � (13) where V is the interior volume, � air density, Q L the in-leak- age of the ambient air, �x the effective diffusion coefficient between the walls and the internal air, SW is the entire wall surface and qM the water input provided by the humidifier ( qM > 0) or dehumidifier (qM < 0). In order to prevent the moisture content from drifting from uD, the in- tegration action has to be added into the controller and the following feed-forward-feedback control action results � � � �� � d d d d � � � ( ) ( ), ( ) ( ) ( ), ( ) t t K t T t T t t K u T t tC I D� � � � � , (12) where the feed-forward gain K TC( , )� , compensating the temperature trend, is given by (11), the unavailable EMC value is computed from the � and T measurements by means of model (3), and KI is an integration gain.
    keywords: absolute; air; air humidity; camuffo; changes; character; constant; content; control; controller; czech; data; drop; emc; equilibrium; exhibits; fig; gain; harmful; henderson; historical; house; humidity; impact; interior; internal; isotherms; k k; mass; materials; microclimate; model; moisture; parameters; prague; process; relative; relative humidity; results; simpson; sorption; state; t t; technical; temperature; university; value; variations; vol; water; wood
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        item: #1032 of 1243
          id: ap-7273
      author: Dittrich, Jaroslav
       title: Measurement of a quantum particle position at two distant locations: a model
        date: 2022-08-31
       words: 3542
      flesch: 67
     summary: Denoting r ∈ R the coordinate of the measured light particle (mass m), x ∈ R the coordinate of the heavy particle in the left detector (mass M) and y ∈ R that in the right detector (mass M), the free Hamiltonian (without an interaction of the measured particle and detectors) reads H0 = − ℏ2 2m ∂2r − ℏ2 2M ∂2x + V (x + R) − ℏ2 2M ∂2y + V (y − R) , (2) understood as a self-adjoint operator in the state space L2(R3) with the domain H2(R3). (15) Matrices F(r) and G(r) are Hermitian and bounded in r ∈ R according to their construction.
    keywords: acta; approximation; c(t; complete; coupling; detection; detectors; distant; einstein; entanglement; epr; function; hamiltonian; hmτ; initial; interaction; introduction; light; macroscopic; measured; measurement; measuring; mechanics; model; operator; particle; physical; physics; places; podolsky; polytechnica; position; potential; probability; quantum; review; rosen; simultaneous; state; system; theory; time
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        item: #1033 of 1243
          id: ap-728
      author: Telfer, D.; Spencer, J.
       title: Properties and Performance of a New Compact HF Aerial Design for Multi-Band Operation
        date: 2005-01-04
       words: 3314
      flesch: 56
     summary: Czech Technical University in Prague a) b) c) d) e) f) Fig. 5: a) FF pattern at fd for DM aerial of Fig. Czech Technical University in Prague a) b) c) Fig. 10: a) SWR plot, 7 to 7.1 MHz for DM aerial of Fig. 3,
    keywords: acta; aerial; atu; balanced; band; czech; degrees; design; dipole; elevation; feed; fig; frequency; gain; ground; house; http://ctn.cvut.cz/ap/; lobe; low; matching; mhz; near; nvis; pattern; plot; polytechnica; practical; prague; publishing; radio; range; swr; technical; tuning; unit; university; vol
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        item: #1034 of 1243
          id: ap-7289
      author: Robert, Ubong Williams; Etuk, Sunday Edet; Agbasi, Okechukwu Ebuka; Umoren, Grace Peter ; Akpan, Samuel Sunday ; Nnanna, Lebe Agwu
       title: Hydrothermally-calcined waste paper ash nanomaterial as an alternative to cement for clay soil modification for building purposes
        date: 2021-12-31
       words: 8838
      flesch: 59
     summary: Analysis of stabilization of soil cement for base of railway track & subgrade. It has been observed that clay soil cannot be used for building design, unless it is modified by firing or with cement.
    keywords: absorption; acta; agbasi; agent; air; analysis; ash; bricks; building; bulk; calcium; cao; capable; capacity; carbon; case; cement; chemical; civil; clay; clay soil; composites; compressive; conductivity; construction; content; decrease; density; development; diffusivity; dioxide; energy; engineering; etuk; figure; flexural; fraction; greater; hcwpan; heat; increases; international; journal; level; mass; materials; matrix; means; mechanical; method; modification; nanomaterial; paper; particles; polytechnica; pores; preparation; production; properties; proportions; purposes; research; results; robert; s. e.; samples; science; silica; similar; sio2; size; soil; sorptivity; specific; stabilization; stabilizer; strength; study; sustainable; table; technique; technology; test; thermal; use; utilization; values; volume; waste; water; weight; work; ± ±
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        item: #1035 of 1243
          id: ap-7291
      author: Agárdi, Anita; Kovács, László; Bányai, Tamás
       title: Comparision of the walk techniques for fitness state space analysis in vehicle routing problem
        date: 2021-12-31
       words: 7145
      flesch: 56
     summary: The relationship between fitness values and average of fitness distances to other solutions in the case of 2-opt operator Figure 9. In the case of a cycle crossover, the averages of fitness distances are also high when the fitness 677 A. Agárdi, L. Kovács, T. Bányai Acta Polytechnica Figure 12.
    keywords: adaptive; adaptive walk; algorithm; analysis; autocorrelation; average; average distances; average fitness; basic swap; best; best solution; case; child; correlation; cost; crossover; crossover fitness; customers; cycle; cycle crossover; density; depot; downhill; example; figure; fitness; fitness distances; fitness state; fitness values; following; function; hamming distances; interval; landscape; large; operator; opt; optimization; order; order crossover; parent; problem; random; results; reverse; routing; search; second; section; sequence distances; small; solution; solution basic; solution fitness; space; state; swap sequence; system; techniques; time; uphill; vehicle; vrp; walk
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        item: #1036 of 1243
          id: ap-730
      author: Mitchell, A. J.; McGookin, E. W.; Murray-Smith, D. J.
       title: Implementation of Sliding Mode Observer Based Reconfiguration in an Autonomous Underwater Vehicle
        date: 2005-01-04
       words: 4430
      flesch: 65
     summary: � �� � ( ) ( ) ( ) (� � � � � � � � � � � � �� � � � � � � � M C D J M g1 10 0 � �) ( ) 0 0 � � � � � � � � � M B u 1 (1) where � �� � u v w p q r T, � �� � X Y Z � � � T, � �u � � �r s n T, B(�) is the nonlinear input matrix, C(�) is the matrix of Coriolis and Centripetal terms, D(�) is the damping matrix, g(�) is the vector of gravitational and buoyancy forces and moments, J(�) is the Euler transformation matrix, and M is the mass and inertia matrix. � � � �r c� , (7) � �M C D g B u� ( )� � � � �� � �( ) ( )r r r+ , (8) � ( )� � �� J .
    keywords: able; angle; auv; bias; complete; control; controller; czech; disturbances; error; failure; fault; fig; guidance; heading; input; matrix; method; mode; nonlinear; observer; output; paper; present; reconfiguration; responses; rudder; sensor; signal; smo; state; switching; system; technical; term; university; vehicles; vol; waypoint; � c
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        item: #1037 of 1243
          id: ap-732
      author: Walker, J. A.; Cossar, C.; Miller, T. J. E.
       title: Simulation and Analysis of Magnetisation Characteristics of Interior Permanent Magnet Motors
        date: 2005-01-04
       words: 4253
      flesch: 55
     summary: The use of magnetic rotor bridges is advantageous in reducing har- monics in the flux density distribution and the addition of the bridge sections can lead to increases in flux-linkage at high current levels. Keywords: permanent magnet, finite element method, flux-linkage measurement, rotor bridges.
    keywords: airgap; axis; bridges; change; circuit; contribution; current; czech; demagnetising; density; difference; direct; distribution; fig; finite; flux; flux density; levels; linkage; magnet; magnetic; magnetisation; miller; motors; open; permanent; phase; position; quadrature; reactance; results; rotor; saturation; simulation; slots; synchronous; technical; test; test motor; university; vol; voltage; winding
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        item: #1038 of 1243
          id: ap-7335
      author: Adeshara, Jatinkumar V.; Patel, Hardik P.; Deheri, Gunamani B.; Patel, Rakesh M.
       title: Performance of a hydromagnetic squeeze film on a rough circular step bearing: a comparision of different porous structures
        date: 2022-08-31
       words: 3589
      flesch: 64
     summary: Keywords: Hydromagnetic fluid, squeeze film, circular step bearing, surface irregularity, spongy structure. Hydromagnetic squeeze film in rough truncated conical plates, using the Kozeny-Carman-model-based spongy structure, was discussed by Adeshara et al.
    keywords: bearing; carman; case; circular; conical; deheri; effect; equation; figure; film; fluid; globular; hydromagnetic; irmay; irregularity; kozeny; load; model; non; patel; performance; plates; porous; pressure; rough; sphere; spongy; squeeze; structure; surface; tanh; transverse
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        item: #1039 of 1243
          id: ap-734
      author: Bíla, J.; Tlapák, M.
       title: Ontologies and Formation Spaces for Conceptual ReDesign of Systems
        date: 2005-01-04
       words: 3776
      flesch: 50
     summary: The field which promises the necessary improvements in modelling the semantics is the field of ontologies. Essential points for specifying ontology (with respect to the ontologies discussed in this paper) include: � Purpose and objective of the development and application of the ontology.
    keywords: active; activities; carriers; change; chbeh; chcarr; class; cnstr; cnstr(shape; components; conceptual; control; czech; description; design; diagram; effect; energy; engineering; fields; fig; flow; functions; gas; glb; interaction; knowledge; language; means; modelling; ontologies; ontology; pneu; prague; principles; process; redesign; representation; semantic; space; state; strata; stratum; structure; sub; systems; technical; transms; trns; uml; university; vol; zone
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        item: #1040 of 1243
          id: ap-7340
      author: Rostova, Hanna; Voyevodin, Victor ; Vasilenko, Ruslan ; Kolodiy, Igor ; Kovalenko, Vladimir ; Marinin, Vladimir ;  Zuyok, Valeriy; Kuprin, Alexander 
       title: Cavitation wear of Eurofer 97, Cr18Ni10Ti and 42HNM alloys
        date: 2021-12-31
       words: 3193
      flesch: 55
     summary: Cavitation erosion can carry away an amount of metal no lesser than corrosion; hence, the importance of studies on cavitation resistance, which will reduce metal losses and increase the durability and reliability of parts and devices, is obvious. Keywords: Cavitation erosion, wear, steel, hardness, structure, resistance.
    keywords: 42hnm; acta; alloy; austenitic; average; cavitation; cavitation wear; corrosion; cr18ni10ti; destruction; energy; erosion; eurofer; fig; high; journal; martensitic; materials; mechanical; microhardness; microstructure; nickel; nuclear; polytechnica; power; properties; radiation; rate; reactors; resistance; samples; science; size; stainless; steel; structure; studies; surface; water; wear
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        item: #1041 of 1243
          id: ap-7341
      author: Marín Velásquez, Tomás Darío; Arriojas Tocuyo, Dany Day Josefina
       title: Analysis of factors affecting the efficiency of Jatropha curcas oil as an asphaltene stabiliser
        date: 2022-04-30
       words: 6263
      flesch: 55
     summary: Estimated response surface for AII of crude oil sample A. a surfactant layer that acts as a stabilising agent, so it is to be expected that the oil samples subjected to heating have had a higher efficiency. As can be seen in Table 7, the effect of the fac- tors on the AII of crude oil sample B differs from that obtained in crude oil sample A.
    keywords: acta; aggregates; aii; analysis; applied; arriojas; asphaltene; astm; chemical; composition; crude; crude oil; curcas; curcas oil; dany; day; density; design; different; dispersion; dose; effect; efficiency; experimental; factors; figure; heated; heating; higher; index; influence; interaction; j. curcas; jatropha; josefina; journal; laboratory; marín; model; monagas; oil; oil sample; oils; petroleum; polytechnica; positive; precipitation; products; properties; quadratic; research; response; results; sample; science; significant; spanish; stabiliser; stability; state; surface; table; temperature; value; vegetable; venezuela; viscosity
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        item: #1042 of 1243
          id: ap-7346
      author: Assaad, Joseph J.; Mata, Matthew ; Saade, Jad
       title: Effect of pigments on bond strength between coloured concrete and steel reinforcement
        date: 2022-04-30
       words: 7481
      flesch: 61
     summary: The findings of this paper reveal that such additions have a rather beneficial effect on the concrete bond 257 J. J. Assaad, M. Matta, J. Saade Acta Polytechnica y = 0.375x + 13.18 R² = 0.71 y = 0.13x + 4.57 R² = 0.71 y = 0.117x + 3.03 R² = 0.71 2.5 3.5 4.5 5.5 12 13 14 15 16 0 1 2 3 4 5 𝜏m ax , M Pa (A CI a nd E C2 ) 𝜏m ax , M Pa (C EB -F IP ) Pigment concentration, % of cement CEB-FIP ACI EC2 Cement = 350 kg/m3 Figure 12. Mixture codification τmax computed by different codes Experimental-to-design bond ratio MPa (τu/τmax) 2 √ f ′c 2.5 √ f ′c ACI 318 EC2 2 √ f ′c 2.5 √ f ′c ACI 318 EC2 350-Control 10.3 12.9 4.5 3 1.1 0.88 2.53 3.84 350-Red-1.5 % 10.9 13.6 4.7 3.2 1.1 0.88 2.52 3.76 350-Red-3 % 11.7 14.6 5.1 3.5 1.54 1.23 3.56 5.19 350-Red-4.5 % 11.8 14.8 5.1 3.5 1.5 1.2 3.47 5.03 350-Grey-3 % 10.9 13.6 4.7 3.2 1.17 0.93 2.69 4.01 350-Grey-4.5 % 11.7 14.6 5.1 3.5 1.2 0.96 2.77 4.03 350-TiO2-1.5 % 11.6 14.5 5 3.4 1.49 1.19 3.43 5.02 350-TiO2-4.5 % 12.3 15.4 5.3 3.7 1.69 1.35 3.88 5.57 350-CBlack-1.5 % 11 13.7 4.8 3.2 1.4 1.12 3.22 4.78 350-CBlack-4.5 % 11.8 14.8 5.1 3.5 1.51 1.21 3.48 5.04 450-Control 11.7 14.6 5.1 3.5 1.62 1.29 3.72 5.42 450-Red-3 % 12.5 15.6 5.4 3.8 1.88 1.5 4.32 6.16 450-Grey-3 % 13 16.3 5.6 4 1.52 1.22 3.5 4.93 450-TiO2-3 % 13.3 16.7 5.8 4.2 1.86 1.49 4.29 5.98 450-CBlack-3 %
    keywords: //doi.org/10.1016; aci; acta; additions; aggregate; assaad; astm; bars; black; bond; bond strength; building; carbon; ceb; cement; cementitious; code; coloured; concentration; concrete; concrete mixtures; content; control; curves; density; design; different; ec2; effect; engineering; experimental; figure; filler; fip; grey; hardened; higher; highest; hrwr; https; hydration; increase; journal; materials; matrix; matta; mechanical; members; micro; microstructure; mixtures; mpa; particle; pigments; polytechnica; properties; reinforcement; relationships; resistance; saade; size; slip; steel; strength; stress; table; tensile; test; tio2; type; values; vol; water; white; τmax; ∆(e
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        item: #1043 of 1243
          id: ap-7354
      author: Haouam, Ilyas
       title: Dirac oscillator in dynamical noncommutative space
        date: 2021-12-31
       words: 7093
      flesch: 68
     summary: − − E (0) + ) 2 , (76) the condition for the convergence of (75) for the λ = 1 full strength case is |W12| = ∣∣∣E(0)− − E(0)+ ∣∣∣ 2 . The contributions of the different parts of the perturbed Hamiltonian are as follows < nx,ny | V1 | n ′ x,n ′ y >=< nx,ny | (y s)2 psy | n ′ x,n ′ y > = −iℏ 2 √ ℏ 2mω δnx,n′x {√ n ′ y ( n ′ y − 1 )( n ′ y − 2 ) δny ,n′y −3 − √( n ′ y + 1 )( n ′ y + 2 )( n ′ y
    keywords: acta; case; coordinates; correction; different; dimensional; dirac; dnc; dynamical; effect; eigenvalues; energy; equation; field; following; function; hamiltonian; haouam; hermitian; ilyas; imcω; journal; letters; levels; magnetic; mc2; noncommutative; n′y; operators; order; oscillator; parameter; perturbation; physical; physics; pncy; polytechnica; position; psy; psz; quantum; relativistic; review; s y; shift; space; spectrum; string; system; terms; theory; time; variables; xnc; ync)2
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        item: #1044 of 1243
          id: ap-736
      author: Peebles, C.; Bil, C.; Drack, L.
       title: Intelligent Data Storage and Retrieval for Design Optimisation – an Overview
        date: 2005-01-04
       words: 14992
      flesch: 54
     summary: 5 Compression of design space data With the increasing complexity of design data, and the more widespread use of complex data types such as volumet- ric, spatial and high-resolution imaging, data compression is becoming very important for adequate storage of large volumes of data. Such a system would be capable of efficiently storing (and compressing if required) a range of types of design data into an intelligent database.
    keywords: 4/2005; access; acm; acta; algorithms; analysis; applications; approach; approximation; artificial; aspects; automation; available; cad; cases; common; complex; complexity; compressed; compression; computational; computer; conference; constraints; construction; control; cost; creation; czech; data; data compression; data models; database; database systems; definition; design; design applications; design automation; design data; design optimisation; design process; design space; design system; design variables; designers; different; domain; early; efficient; engineering; example; expert; file; function; fuzzy; generation; genetic; geometric; geometry; house; http://ctn.cvut.cz/ap/; ieee; image; imaging; implementation; important; information; intelligent; international; journal; knowledge; large; literature; lossless; management; medical; memory; methods; modelling; models; new; number; nurbs; object; optimal; optimisation; paper; parameters; pde; performance; points; polytechnica; polytechnica vol; practical; prague; previous; problem; proceedings; process; processes; processing; project; publishing; queries; query; range; relational; relevant; representation; research; results; retrieval; review; search; sets; shape; similar; similarity; small; solid; solution; space; spatial; specific; spline; storage; structures; study; support; surface; system; technical; techniques; terms; time; types; university; usa; use; user; variables; vol; volumetric
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        item: #1045 of 1243
          id: ap-738
      author: Crosbie, R. E.; Hingorani, N. G.
       title: High-Speed Real-Time Simulators for Engineering Design
        date: 2005-01-04
       words: 3590
      flesch: 49
     summary: RTDS Technologies (Ref [4]) specialize in providing simulation systems customized to specific, large-scale power system simulations. Simulation of a very rapid phenome- non, such as the operation of electronic switches, will execute more slowly than real time to allow observation of the changes taking place.
    keywords: analog; applications; available; board; cases; chico; computer; control; controllers; converters; czech; data; design; devices; digital; dsp; electronic; engineering; example; frame; hardware; high; hsrt; human; inc; low; model; necessary; operating; operation; performance; phase; power; processors; range; real; ref; shorter; simulated; simulation; software; speed; system; technical; time; training; university; use
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        item: #1046 of 1243
          id: ap-740
      author: Ericsen, T. S.
       title: Physics Based Design, the Future of Modeling and Simulation
        date: 2005-01-04
       words: 5272
      flesch: 52
     summary: The future system design process It is time for system design, particularly Naval Ship de- sign, to evolve. The idea of open plug-and-play architecture is to build power systems in much the same way as personal computers.
    keywords: acs; analysis; applications; behavior; blocks; building; complex; complexity; components; computer; controller; cost; customer; cycle; czech; design; designers; detail; different; digital; electrical; electronic; elements; energy; engineering; ericsen; fig; filter; future; hardware; hil; ieee; interfaces; loop; machine; methods; model; modeling; need; new; parts; pebb; performance; physics; power; process; product; real; requirement; results; sensors; simulation; smart; software; solution; standard; system; technical; thermal; time; today; tools; unit; university; vendor; vol
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        item: #1047 of 1243
          id: ap-742
      author: Hrouzek, M.
       title: Feedback Control in an Atomic Force Microscope Used as a Nano-Manipulator
        date: 2005-01-04
       words: 2399
      flesch: 53
     summary: Fig. 6 shows control loops affecting the sensitivity of the AFM. In the tapping mode, the tip is touches the surface in each period of cantilever movement at its maximum deflection to- © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 65 Czech Technical University in Prague Acta Polytechnica Vol. 45 No. 4/2005 Feedback Control in an Atomic Force Microscope Used as a Nano-Manipulator M. Hrouzek
    keywords: acta; afm; atomic; cantilever; contact; control; czech; deflection; displacement; feedback; fig; force; frequency; high; interaction; loop; microscopy; mode; movement; noise; piezo; polytechnica; positioning; sample; scanning; sensitivity; signal; stage; surface; systems; technical; techniques; thermal; tip; university; vol
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        item: #1048 of 1243
          id: ap-744
      author: Coiro, D. P.; Marco, A. de; Nicolosi, F.; Genito, N.; Figliolia, S.
       title: Design of a Low-Cost Easy-to-Fly STOL Ultralight Aircraft in Composite Material
        date: 2005-01-04
       words: 3269
      flesch: 68
     summary: Only in Italy in the last 5–6 years, at least 10 companies have started production of ULM aircraft. TOPULM is defined as: TOPULM TO TO L TO � � � � � � � � � � � � � W P W S C� max ; (1) with W S � � � � � � TO in [N/m2] and W P � � � � � � TO in [N/W]; � � � � 0 .
    keywords: acta; aerodynamic; aircraft; chord; coefficient; czech; design; fig; flight; ground; high; horizontal; house; http://ctn.cvut.cz/ap/; landing; level; lift; loading; maximum; new; optimization; performance; polytechnica; power; publishing; run; sea; speed; stol; tail; technical; ulm; university; vmax; vol; weight; wing
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        item: #1049 of 1243
          id: ap-7440
      author: Agustina, Tuty Emilia; Gayatri, Rianyza; Bahrin, David ; Moeksin, Rosdiana; Gustini
       title: ZnO-Zeolite nanocomposite application for photocatalytic degradation of procion red and its adsorption isotherm
        date: 2022-04-30
       words: 5850
      flesch: 54
     summary: Impregnation of activated carbon-TiO2 composite and its application in photodegradation of procion red synthetic dye in aqueous medium. Photocatalytic degradation of procion red synthetic dye using ZnO-Zeolite composites.
    keywords: adsorbent; adsorption; adsorption isotherm; adsorption process; application; capacity; concentration; conditions; dark; degradation; degradation process; dye; engineering; equation; figure; freundlich; graph; higher; highest; intensity; irradiation; isotherm; journal; lamp; langmuir; light; maximum; minutes; nanocomposite; percentage; photocatalyst; photocatalytic; photodegradation; process; procion; procion red; red; red dye; research; results; sem; study; suitable; sunlight; synthetic; synthetic zeolite; time; type; ultraviolet; value; zeolite; zeolite nanocomposite; zno
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        item: #1050 of 1243
          id: ap-746
      author: Avanzini, G.; D’Angelo, S.; Matteis, G. de
       title: Design and Development of the Engine Unit for a Twin-Rotor Unmanned Aerial Vehicle
        date: 2005-01-04
       words: 4915
      flesch: 47
     summary: As for the last point, details will be given on the control system for engine rpm control currently being tested on the vehicle prototype. Nonetheless the iSTAR MAV is significantly different, inasmuch as it uses a ducted, constant pitch propeller for thrust generation, thrust modulation being achieved by engine rpm control, and con- trol moments being generated by vanes in the propeller wake.
    keywords: academic; acta; advanced; aerial; aerodynamic; aiaa; avanzini; blade; board; code; complex; components; computer; configuration; control; control system; czech; design; development; d’angelo; engine; fan; flight; flow; framework; fuselage; ground; hardware; high; house; http://ctn.cvut.cz/ap/; machine; main; matteis; model; modeling; necessary; order; output; paper; performance; phase; pitch; polytechnica; power; prague; present; proc; program; project; prototype; publishing; research; rotor; rotorcraft; rpm; separation; servos; shrouded; simulation; software; solid; speed; system; technical; technologies; testing; tools; uav; uninhabited; unit; university; vehicle; vol; vsaero; wake
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        item: #1051 of 1243
          id: ap-748
      author: McGeoch, D. J.; McGookin, E. W.; Houston, S. S.
       title: Sliding Mode Implementation of an Attitude Command Flight Control System for a Helicopter in Hover
        date: 2005-01-04
       words: 5414
      flesch: 64
     summary: However when within the boundary layer, � �� BL, the out- put is equal to � �BL. T Tswitching cmd� � � � � �1 � �( ) sgn( ( ))� � � , (8) where, �( )f x represents the unmodelled dynamics.
    keywords: acta; ads-33; amplitude; attitude; bandwidth; change; cmd; command; control; controller; coupling; czech; decoupled; delay; design; dynamics; fig; flight; following; gain; handling; helicopter; high; input; large; level; linear; matrix; model; moderate; non; order; phase; pitch; polytechnica; rate; requirement; response; roll; rotor; rotorcraft; smc; switching; system; technical; term; university; vol; yaw
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        item: #1052 of 1243
          id: ap-750
      author: Zanic, V.; Prebeg, P.
       title: Primary Response Assessment Method for Concept Design of Monotonous Thin-Walled Structures
        date: 2005-01-04
       words: 5851
      flesch: 67
     summary: x e x xxx e( , ) ( , ) ( ) ( ),� � � � � �w , and the total potential energy of the element, using the same shape functions as before, reads: � e e e e e l ex t G RS s x e � � � ! i e e e e Tc T c � � � � � ! ## � 2 and GI GI GIT To Tc� � .
    keywords: acta; beam; bending; box; calculation; concept; cross; czech; design; displacement; e e; e j; e l; e t; e u; e y; e �; element; energy; feasibility; fem; field; fig; g �; global; l l; l u; load; method; model; modules; normal; octopus; polytechnica; primary; program; response; s e; section; shear; ship; stiffness; strength; stress; stresses; strip; structural; technical; thin; torsion; total; transverse; u s; u u; university; vol; walled; warping; wing; xs e; z e; � xs; � xse
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        item: #1053 of 1243
          id: ap-7515
      author: Dibyo, Sukmanto ; Luthfi, Wahid;  Pinem, Surian; Irianto, Ign Djoko; Sriwardhani, Veronica Indriati 
       title: CFD simulation of partial channel blockage on plate-type fuel of TRIGA-2000 conversion reactor core
        date: 2022-08-31
       words: 4005
      flesch: 62
     summary: Heat transfer analysis of plate type fuel element of reactor core. Channel blockage conditions can occur due to bending or swelling of fuel plates, caused by other material falling into the reactor pool, or debris carried by the coolant flow [10, 11].
    keywords: analysis; area; assembly; blockage; boiling; case; cfd; channel; code; conversion; coolant; coolod; core; design; element; figure; flow; fluent; fuel; heat; hydraulic; inlet; material; maximum; mtr; nuclear; partial; plate; profile; reactor; research; results; safety; shows; simulation; state; steady; study; sub; technology; temperature; thermal; triga-2000; type; type fuel; velocity
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        item: #1054 of 1243
          id: ap-752
      author: Poul, R.; Hanus, D.
       title: Composite Axial Flow Propulsor for Small Aircraft
        date: 2005-01-04
       words: 2258
      flesch: 66
     summary: 4: Scheme of VARTM 4 Loads applied to rotor blades A rotor blade is loaded by a centrifugal force, resulting in a tensional force and a torsional moment acting in the blade axis direction, and by air pressure, which induces bending moments acting in the fan tangential and axial direction. Czech Technical University in Prague Fig. 10: Stress distribution in the first layer of the rotor blade: �x, �y, �xy Blade Glass/epoxy blade bottom Al-alloy modified dovetail lock Adhesive bonds Fig. 11: Rotor blade detail
    keywords: acta; air; analysis; axial; blade; calculation; carbon; composite; czech; design; distribution; epoxy; fan; fig; flow; house; http://ctn.cvut.cz/ap/; method; polytechnica; prague; pressure; properties; publishing; resin; rotor; skin; stator; technical; university; vane; velocity; vol; work
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        item: #1055 of 1243
          id: ap-7523
      author: Nguyen, Danh Huy; Vu, Minh Le ; Trong , Hieu Do ; Nguyen, Danh Giang; Nguyen, Tung Lam
       title: Active disturbance rejection control-based anti-coupling method for conical magnetic bearings
        date: 2022-08-31
       words: 5109
      flesch: 66
     summary: Conical magnetic bearings with radial and thrust control. Fuzzy modeling and control for conical magnetic bearings using linear matrix inequality.
    keywords: acta; active; adrc; air; amb; angle; axes; axis; bearing; bias; centre; component; cone; conical; control; controller; coupling; current; design; disturbance; dynamic; effects; engineering; equations; equilibrium; figure; force; high; io1; io2; ki1; kq1; kq2; loop; magnetic; mass; model; motion; nguyen; observer; polytechnica; position; radial; rejection; rotational; rotor; simulation; sin; speed; structure; system; −ki2
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        item: #1056 of 1243
          id: ap-754
      author: Kaňovský, P.; Smrcek, L.; Goodchild, C.
       title: Simulation of UAV Systems
        date: 2005-01-04
       words: 2375
      flesch: 53
     summary: This design method is also suitable for further utilisation in UAV design system simulation. The feature that distin- guishes the autopilot requirements of a UAV (Figs. 1, 7, 8) from the flight systems of conventional manned aircraft is the paradox of controlling a high bandwidth dynamical system using sensors that are in harmony with the low cost low weight objectives that UAV designs are often expected to achieve.
    keywords: acta; aircraft; airplane; altitude; automatic; autopilot; basic; coefficient; control; czech; data; design; engineering; equations; fig; flight; house; http://ctn.cvut.cz/ap/; low; main; mathematical; measurement; method; model; parameters; polytechnica; prague; pressure; publishing; quantities; results; sensor; simulation; simulink; sojka; speed; system; technical; time; uav; university; vertical; vol
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        item: #1057 of 1243
          id: ap-756
      author: Dostál, M.; Zymák, J.; Valach, M.
       title: Physical and Numerical Difficulties in Computer Modelling of Pellet-Cladding Contact Problems for Burned-Up Fuel
        date: 2005-01-05
       words: 2452
      flesch: 57
     summary: The age of high- -speed computers has brought a qualitative change into the analysis of contact problems. 2 Mathematical description of the problem – unilateral contact Mathematical modelling of unilateral contact problems is a new area in applied mathematics.
    keywords: acta; analysis; behaviour; cladding; conditions; contact; cosmos; czech; element; femaxi; fig; finite; fuel; gap; heat; house; http://ctn.cvut.cz/ap/; linear; nuclear; outer; pellet; polytechnica; power; prague; problems; publishing; rod; stress; stresses; surface; technical; temperature; thermal; time; unilateral; university; values; vol
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        item: #1058 of 1243
          id: ap-758
      author: Filipská, H.; Štamberg, K.
       title: Mathematical Modeling of a Cs(I) – Sr(II) – Bentonite – Magnetite Sorption System, Simulating the Processes Taking Place in a Deep Geological Repository
        date: 2005-01-05
       words: 6680
      flesch: 66
     summary: (69) Balance equation of total concentration of the edge sites, �SOH: � � � � � � � � � � � � �SOH SOH SOH SO SOSr (SO) (71) Balance equation of the total concentration of Sr(II) in the so- lution, [�Sr]solution, including the precipitate: � � � � � � � � � � � � �Sr Sr SrCO SrNO SrSO SrCO solution 2 3 3 4 3 � � � � � � �0 0 .
    keywords: acta; aqueous; b �; balance; bentonite; case; ccm; cem �; charge; concentration; constants; czech; data; e.g.; edge; equation; equilibrium; exchange; exp �; experimental; function; kdcal �; layer; magnetite; model; modeling; phase; prague �; processes; protonation; qls �; sites; soh2 �; solid; solution; sorption; srno; surface; technical; titration; total; types; university; vol; � c; � f([h; � f(ph; � h; � sr; � srco; � x; � �
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        item: #1059 of 1243
          id: ap-7583
      author: Saad, Nasser
       title: On generalized Heun equation with some mathematical properties
        date: 2022-02-28
       words: 12593
      flesch: 82
     summary: − h − 1) + q1,h ] + q0,h (k + λ)[q2,0 (k + λ ξ+, |ξ−| < ξ+ a22 − 4a1a3 = 0 r = 0, ξ+ = ξ− = ξ r ∈ (0, ξ) Differential Equation: r (ξ1 − r)(ξ2 − r) y′′ + (β0 + β1 r + β2 r2)
    keywords: 0 r; 1)α1; 1)α2; 1/2022; 2f1; 2α1; = −; acta; case; ck−1; coefficients; condition; degree; differential; differential equation; equation; following; formula; generalized; heun; journal; k β1; k=0; linear; mathematical; n k; nasser; necessary; neighbourhood; order; orthogonal; physics; point; point r; polynomial; polytechnica; properties; r k; real; recurrence; regular; relation; roots; s +; saad; second; sequence; series; simple; singular; solutions; term; theorem; u =; u(r; vol; y(r; zeros; α1 r; α2 r; α2−4ε0; α2−β1)2−4α2ε0; α3 r; α3 α2; β0 α1; β1 r; β2 r; β2 α3; ε0;n; − √; √ −
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        item: #1060 of 1243
          id: ap-7596
      author: Campoamor-Stursberg, Rutwig
       title: On some algebraic formulations within universal enveloping algebras related to superintegrability
        date: 2022-02-28
       words: 5406
      flesch: 55
     summary: The method of virtual copies, initially introduced in the context of invariant theory, provides an additional approach that combines ele- ments of the two algebraic formulations, and refers to a number of still open problems, such as the general solution of the embedding problem of Lie algebras into enveloping algebras [9]. In this work we comment on some purely alge- braic approaches formulated in the enveloping algebras of Lie algebras for the identification or construction of quadratic algebras that may lead to super-integrable systems, once a suitable realization of the enveloping algebra by first-order differential operators has been chosen.
    keywords: algebra; algebraic; basis; case; commutators; commute; construction; context; differential; dimensional; elements; enveloping; generators; hamiltonian; integrals; invariant; journal; kij; lie; lie algebras; mathematical; operators; order; physics; polynomials; problem; quadratic; realization; representation; semidirect; solvable; stursberg; subalgebra; superintegrable; systems; terms
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        item: #1061 of 1243
          id: ap-760
      author: Baláži, P.
       title: Various Properties of Sturmian Words
        date: 2005-01-05
       words: 5797
      flesch: 72
     summary: We can compute the lengths between two consecutive points of ( )xn n Z� as � �x x n nn n� � � � � � � �1 1( )� � � � �. Then s s n� � � �, , ( )� , s s n� � � �, , ( )� are sequences defined by, � �s n n n� � � � � �, ( ): ( )� � � � �1 , for n � 0, � � � �s n n n� � � � � �, ( ): ( )� � � � �1 , for n � 0.
    keywords: alphabet; aperiodic; bidirectional; characterization; coding; cut; czech; exchange; fibonacci; infinite; integer; interval; invariant; irrational; length; map; math; mechanical; n n; nn �; number; palindromes; points; project; results; return; s �; sequence; set; sided; sturmian; sturmian words; substitution; theorem; university; vol; w w; words; � �
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        item: #1062 of 1243
          id: ap-7611
      author:  Kulshreshtha, Daya Shankar;  Kulshreshtha, Usha
       title: On the Wess-Zumino Model: a supersymmetric field theory
        date: 2022-02-28
       words: 3447
      flesch: 70
     summary: Keywords: Wess-Zumino Model, supersymmetric field theories, Hamiltonian and path integral quantization. Supergravity theory on the other hand is a theory that has “local supersymmetry” and it is invariant under local Susy transformations where the transformation parameter depends on the spacetime xµ.
    keywords: constant; constraints; density; example; fermionic; field; free; global; iγ5; k0a; majorana; manifest; massless; model; non; physics; poincare; rigid; sft; spacetime; spinor; supergravity; supersymmetry; susy; theory; transformations; wess; wzm; zumino
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        item: #1063 of 1243
          id: ap-7618
      author: Jeníková, Jitka; Michaliková, Kristýna; Hrdlička, František; Hrdlička, Jan; Pilař, Lukáš; Vodička, Matěj; Skopec, Pavel
       title: Applicability of Secondary Denitrification Measures on a Fluidized Bed Boiler
        date: 2022-06-30
       words: 6314
      flesch: 60
     summary: NOX emissions from bubbling fluidized bed combustion of lignite coal. Formation of NOX emissions There are three known mechanisms of nitrogen oxides formation in combustion processes [2–4]: • thermal NOX – oxidation of molecular nitrogen from the oxidant at high temperatures, known as the Zeldovich mechanism, • fuel NOX – oxidation of chemically bound nitrogen in solid fuels, 341 https://doi.org/10.14311/AP.2022.62.0341 https://creativecommons.org/licenses/by/4.0/ https://www.cvut.cz/en J. Jeníková, K. Michaliková, F. Hrdlička et al.
    keywords: acta; agent; air; ammonia; bat; bed; boiler; catalyst; catalytic; coal; combustion; concentrations; conversion; correlation; czech; denitrification; efficiency; emissions; energy; excess; experimental; figure; flue; fluidized; fluidized bed; formation; fuel; gas; higher; hrdlička; injection; lower; measures; method; mol; n2o; nh3; nitrogen; nm3; non; nox; nox reduction; nsr; oxides; oxy; polytechnica; primary; reaction; reduction; results; scr; scr method; secondary; section; selective; sncr; staging; table; technologies; temperature; vol; window
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        item: #1064 of 1243
          id: ap-7619
      author: Vodička, Matěj; Michaliková, Kristýna; Hrdlička, Jan; Skopec, Pavel; Jeníková, Jitka
       title: Experimental verification of the impact of the air staging on the NOx production and on the temperature profile in a BFB
        date: 2022-06-30
       words: 6505
      flesch: 62
     summary: For coal combustion, no positive impact of staged injec- tion of combustion air was observed in the 30 kWth facility. NOX emissions from bubbling fluidized bed combustion of lignite coal.
    keywords: air; air ratio; air staging; bed; bed temperature; bfb; bfb facility; biomass; case; coal; combustion; concentration; conditions; dry; experiments; facility; figure; flue; flue gas; fluidization; fluidized; fluidized bed; formation; freeboard; fuel; gas; height; higher; impact; increase; injection; kwth; kwth bfb; kwth facility; lignite; minimum; nitrogen; nox; nox formation; particle; primary; primary air; profile; ratio; reduction; results; scale; secondary; secondary air; section; sncr; staging; s−1; table; temperature; volumetric; zone
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        item: #1065 of 1243
          id: ap-762
      author: Ambrož, P.
       title: Non-Standard Numeration Systems
        date: 2005-01-05
       words: 3699
      flesch: 72
     summary: For given � find the value, or at least some good estimate, of the quantities L n x y x y x y n� �� � � � � � � � �( ): min{ | , , ( ) },� � �� �N Z ZFin L n x y xy xy n� �� � � � � � �( ): min{ | , , ( ) }� � �� �N Z ZFin . The first of them uses the so-called Meyer property of the set of �-integers for � Pisot number, namely that Z Z Z� � �� � � F where F is a finite set, and Z Z Z� � �� � G where G is a finite set.
    keywords: addition; algebraic; ambrož; base; beta; czech; finite; fractional; integer; number; pisot; property; real; root; sequence; set; systems; technical; theorem; university; vol; � -adic; � -expansions; � -numeration
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        item: #1066 of 1243
          id: ap-7620
      author: Krempaský, Jakub; Havlík, Jan; Dlouhý, Tomáš
       title: Theoretical and experimental study of water vapour condensation with high content of non-condensable gas in a vertical tube
        date: 2022-06-30
       words: 5969
      flesch: 53
     summary: Experiments to determine the effect of NCG on water vapour condensation have been per- formed, so far, for an artificially prepared mixture of water vapour and air, also because of the availabil- ity of relevant literature references. [5] conducted an experimental and the- oretical study of water vapour condensation in the presence of air in a vertical tube.
    keywords: accuracy; air; analogy; calculated; coefficient; concentration; condensate; condensation; condenser; condensing; cooling; decreases; developed; effect; equation; experimental; figure; film; flow; gas; gases; heat; heat transfer; high; htc; inlet; inner; interface; layer; local; mass; mass transfer; measurements; mixture; model; molar; ncg; non; number; nusselt; outlet; overall; phase; power; presence; resistance; results; steam; study; temperature; theoretical; theoretical model; theory; transfer; tube; vapour; vapour condensation; vapour mixture; vertical; water; water vapour
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        item: #1067 of 1243
          id: ap-7623
      author:  Kulshreshtha, Usha;  Kulshreshtha, Daya Shankar;  Sihagb, Bheemraj
       title: Maxwell-Chern-Simons-Higgs theory
        date: 2022-02-28
       words: 3158
      flesch: 70
     summary: ∂2δ(x2 − y2) {E1(x0, x1, x2) , A1(x0, y1, y2)}D = {E1(x0, x1, x2) , A1(x0, y1, y2)}P = − δ(x1 − y1)δ(x2 − y2) (ieΠ) {E2(x0, x1, x2) , Φ(x0, y1, y2)}D = − ( κ 2 ) ∂1δ(x1 − y1)δ(x2 − y2) {E2(x0, x1, x2) , A2(x0, y1, y2)}D = {E2(x0, x1, x2) , A2(x0, y1, y2)}P = −δ(x1 − y1)δ(x2 − y2) (Π) {Φ(x0, x1, x2) , Φ∗(x0, y1, y2)}D = (−Φ∗)δ(x1 − y1)δ(x2 − y2) (Π) {Φ(x0, x1, x2) , A0(x0, y1, y2)}D = (Φ) δ(x1 − y1)δ(x2 − y2) (ieΠ) {Φ(x0, x1, x2) , A1(x0, y1, y2)}D = ∂1δ(x1 − y1)δ(x2 − y2) (ieΠ) {Φ(x0, x1, x2) , A2(x0, y1, y2)}D = δ(x1 − y1) Acta Polytechnica https://doi.org/10.14311/AP.2022.62.0085 Acta Polytechnica 62(1):85–89, 2022 © 2022
    keywords: 1)d; abelian; canonical; chern; conditions; constraints; density; field; fixing; formulation; fractional; gauge; gfc; hamiltonian; higgs; kulshreshtha; lagrangian; letters; matrix; maxwell; models; physical; physics; potential; quantum; review; scalar; set; simons; term; theories; theory; time; vector; y1)δ(x2; y2)}d; δ(x1; φ(x0
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        item: #1068 of 1243
          id: ap-7630
      author: Švanda, Ondřej; Pollert, Jaroslav
       title: CFD modelling of a secondary settling tanks: generalization based on database relations
        date: 2022-04-30
       words: 5305
      flesch: 59
     summary: That significantly simplifies the preparation work to run a CFD simulation of the SST and more impor- tantly, it expands the usage of CFD settling model outside the batch test specific WWTP. Comparison of the sludge blanket in DN3 between CFD model (left) and experiment (right).
    keywords: account; acta; approach; blanket; cfd; cfd model; concentration; conditions; curve; data; database; developed; different; dry; equation; experimental; figure; flocculation; flow; function; height; hindered; index; inlet; interface; measured; model; modelling; new; numerical; order; outlet; parameters; phase; pollert; polytechnica; profile; properties; rain; rate; relations; results; rheology; sample; sampling; secondary; sedimentation; settleability; settling; sludge; solids; solids concentration; sst; strain; sub; svi; tank; test; time; velocity; viscosity; volume; water; zone
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        item: #1069 of 1243
          id: ap-7633
      author: Hahn, Gabriela; Monteiro da Fonseca Thomé da Silva, Antônio Henrique; Tempel Stumpf, Felipe; Marcos Guilherme, Carlos Eduardo
       title: Evaluation of residual strength of polymeric yarns subjected to previous impact loads
        date: 2022-08-31
       words: 3939
      flesch: 57
     summary: BS EN 892:2012 brings different proce- dures depending on the investigated factors, such as stiffness, cycle number for impact load, transmitted force in the rope and maximum stretching. Results of the tensile tests for residual strength evaluation immediately after impact load – higher dead weights.
    keywords: abrupt; acta; axial; behaviour; break; conditions; damage; dead; deformation; different; evaluation; fibres; high; hmpe1; hours; impact; load; materials; mechanical; mooring; offshore; original; pet; polyester; polymeric; polytechnica; properties; reference; residual; results; ropes; samples; section; specific; strength; synthetic; table; tensile; tested; tests; tex; unexposed; weight; yarn; ybl
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        item: #1070 of 1243
          id: ap-7638
      author: Patel, Niru C.; Patel, Jimit R.; Deheri, Gunamani M.
       title: A comparative study of ferrofluid lubrication on double-layer porous squeeze curved annular plates with slip velocity
        date: 2022-08-31
       words: 4458
      flesch: 59
     summary: And even lesser amount of studies has been done concerning the comparative studies on the performance of ferrofluid lubricated porous squeeze film in the multi-layered bearing sys- tem considering slip velocity. Magnetic fluid based squeeze film between porous annular curved plates with the effect of rotational inertia.
    keywords: annular; bearing; bhat; comparative; curved; deheri; double; effect; engineering; equation; exponential; ferrofluid; figure; film; hyperbolic; journal; kumar; layer; layered; lbc; load; lubrication; magnetic; model; non; parameter; patel; performance; plates; porosity; porous; profile; regards; rough; shah; shliomis; slip; squeeze; study; surface; system; tribology; variation; velocity
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        item: #1071 of 1243
          id: ap-764
      author: Lavička, H.; Slanina, F.
       title: A Model of the Distribution of Wealth in Society
        date: 2005-01-05
       words: 3229
      flesch: 70
     summary: The second interesting variable is distribution of wealth D w P w w( ) ( )� � � . Edge e is a unor- dered pair e i j� ( , ) connecting nodes i and j. Each node i from i � � has its neighborhood � � �i j i j� � �{ |( , ) }.
    keywords: agents; average; case; connectivity; czech; distribution; edge; exponent; fig; interaction; law; model; network; parameters; pareto; phys; physica; power; prague; rev; scattering; simulations; social; society; solomon; tail; technical; tension; time; university; vol; wealth
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        item: #1072 of 1243
          id: ap-7640
      author: Michaliková, Kristýna; Hrdlička, Jan; Vodička, Matěj; Skopec, Pavel; Jeníková, Jitka; Pilař, Lukáš
       title: Experimental verification of the efficiency of selective non-catalytic reduction in a bubbling fluidized bed combustor
        date: 2022-06-30
       words: 5669
      flesch: 60
     summary: Dependence of NOX reduction efficiency on temperature for different N SRs. Dependence of NOX reduction efficiency on N SR for different temperatures. 367 K. Michaliková, J. Hrdlička, M. Vodička et al.
    keywords: acta; air; ammonia; application; bed; bfb; biomass; case; catalytic; catalytic reduction; combustion; concentration; different; efficiency; emissions; experiments; figure; flow; flue; fluidized; fluidized bed; formation; freeboard; fuel; gas; injection; lignite; lower; measured; n2o; nitrogen; non; nox; nox reduction; oxides; primary; process; range; reagent; reduction; secondary; selective; sncr; solution; staging; temperature; urea; value; volumetric; wooden; zone; ° c
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        item: #1073 of 1243
          id: ap-7652
      author: Natanson, Gregory
       title: Quantization of rationally deformed Morse potentials by Wronskian transforms of Romanovski-Bessel polynomials
        date: 2022-02-28
       words: 10436
      flesch: 68
     summary: − y ld∞Φ±,mp+1 (12) The Liouville transformations of the CSLEs with zero-energy free terms I0[ξ; a,b] and I0[ξ; a,b | ±, 0] then brings us to Gendenshtein’s conventional definition of a TSI potential [34] V [ξ; ⇀a,b | +, 0] = V [ξ; ⇀a + ⇀ 1 ,b] − E+1( ⇀ a,b) (13) or V [ξ; ⇀a,b | −, 0] = V [ξ; ⇀a − ⇀ 1 ,b] − E−1( ⇀ a,b) (14) depending on which basic solution ϕ+,0[ξ; ⇀ a,b] or ϕ−,0[ξ; ⇀ a,b] represents the lowest energy eigenfunction.
    keywords: acta; analysis; axis; bessel; bessel polynomials; conventional; corresponding; crum; csle; darboux; degree; eigenfunctions; end; energy; equation; equivalence; form; frobenius; generalized; group; i0[ξ; invariant; isospectral; journal; juxtaposed; laguerre; liouville; mathematical; morse; n(a; n2j; natanson; new; non; odake; orthogonal; pairs; partition; physics; point; polynomials; polytechnica; positive; potentials; prime; principal; problem; quantization; question; rational; rdct; rdt; relations; rsle; rss; sasaki; schrödinger; seed; set; shape; singular; solutions; solvable; sturm; terms; tfi; theorem; theory; transformations; tsi; type; use; vol; wronskians; zeros; | ±; | −; ∞w[y
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        item: #1074 of 1243
          id: ap-7656
      author: Zhao, Hui ; Liu, Yu-Qiu ; Wang, Zhi-Xi ; Fei, Shao-Ming
       title: A note on entanglement classification for tripartite mixed states
        date: 2022-02-28
       words: 4040
      flesch: 76
     summary: For any quantum state ρ ∈ H21 ⊗ H22 ⊗ H33 , ρ has the principal basis representation: ρ = 1 12 (I2 ⊗ I2 ⊗ I3 + ∑ (i,j) ̸=(0,0) uij Aij ⊗ I2 ⊗ I3 + ∑ (k,l) ̸=(0,0) vklI2 ⊗ Akl ⊗ I3 + ∑ (s,t)̸=(0,0) wstI2 ⊗ I2 ⊗ Bst + ∑ (i,j),(k,l) ̸=(0,0) xij,klAij ⊗ Akl ⊗ I3 + ∑ (i,j),(s,t) ̸=(0,0) yij,stAij ⊗ I2 ⊗ Bst + ∑ (k,l),(s,t) ̸=(0,0) zkl,stI2 ⊗ Akl ⊗ Bst + ∑ (i,j),(k,l),(s,t) ̸=(0,0) rij,kl,stAij ⊗ Akl ⊗ Bst), (8) where I2 (I3) denotes the two (three) dimensional identity matrix, uij = tr(ρA † ij ⊗ I2 ⊗ I3), vkl = tr(ρI2 ⊗ A † kl ⊗ I3), wst = tr(ρI2 ⊗ I2 ⊗ B † st), xij,kl = tr(ρA†ij ⊗A † kl ⊗I3), yij,st = tr(ρA † ij ⊗I2 ⊗B † st), zkl,st = tr(ρI2 ⊗A † kl ⊗B † st) and rij,kl,st = tr(ρA † ij ⊗A † kl ⊗B † st). Taking into account the local unitary equivalence in H22 ⊗ H33 and using (9), we only need to consider that {|α⟩, |β⟩} = {|00⟩, |01⟩}.
    keywords: basis; bell; classification; criteria; dimensional; entanglement; h21; h22; h33; inequalities; matrices; mixed; multipartite; operators; physical; pi|φi⟩⟨φi|; principal; quantum; review; separable; states; systems; t0t1; theorem; tripartite; triqutrit; unitary; x̂ẑ2)j; ẑj; ̸=(0,0; λ2x̂ẑ)j; ∥tr; 
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        item: #1075 of 1243
          id: ap-7658
      author: Červený, Ondřej; Vybíral, Pavel; Hemerka, Jiří; Mareš, Luďek
       title: Measurement of solid particle emissions from oxy-fuel combustion of biomass in fluidized bed
        date: 2022-06-30
       words: 2447
      flesch: 58
     summary: Values of dilution ratio obtained using the given method and experimentally by measurement as a function of sample gas temperature. The presented work summarizes the results of the measurement of solid particle emissions from an experimental 30 kW combustion unit.
    keywords: acta; air; bed; biomass; capture; carbon; case; co2; combustion; composition; dilution; dilution ratio; dilutor; ejector; emissions; equation; experimental; figure; flow; flue; fluidized; fuel; gas; impactor; measurement; method; oxy; particle; polytechnica; rate; ratio; results; sample; solid; temperature
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        item: #1076 of 1243
          id: ap-7659
      author: Reboiro, Marta; Ramírez, Romina; Fernández, Viviano
       title: Swanson Hamiltonian revisited through the complex scaling method
        date: 2022-02-28
       words: 4999
      flesch: 71
     summary: Journal of Physics A: Mathematical and General 35(31):L467–L471, 2002. https://doi.org/10.1088/0305-4470/35/31/101. Journal of Physics A: Mathematical and Theoretical 53(37):375302, 2020.
    keywords: complex; csm; different; effective; eigenfunctions; h(θ; hamiltonian; hermitian; iii; integrable; journal; mathematical; method; model; non; operators; physical; physics; plata; potential; quantum; real; region; space; spectrum; square; swanson; symmetry; systems; table; theoretical; u(θ; values; work; x)dx; ω−α−β
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        item: #1077 of 1243
          id: ap-766
      author: Novotný, J.; Štefaňák, M.; Košt’ák, V.
       title: Multi-Particle Universal Processes
        date: 2005-01-05
       words: 4375
      flesch: 67
     summary: We will use the following notation A j Z j j j j j j D B j Z D N N N D N � � � � � � � � � � { | ( , , , ), } { | � � � � � 1 22 2 3 � � � � � j j j j j j D j N j N N� � � � � � � ( , , ), } { } ! sgn( ) ) 1 1 2 1 2 1 � �� �� jN PN ) , �� (10) where PN is a group of permutations of N elements. Consider a linear map � from 1 to N particles, i. e. � � � � �: ( ) ( ), ( ) ( ), ( ) ( ),� � � �in out in out Np p p p� � � � (1) where the density matrix �in ( )p has the form �in N N D I( ) ( ) ( )p p p� � � � �1 1 1 , (2) i.e. the first particle is in the pure state p , and all others are in the state of a complete mixture.
    keywords: anti; case; condition; czech; d n; density; entanglement; family; form; hilbert; j j; matrix; multi; n n; output; p n; parameter; particle; processes; quantum; scalar; space; states; symmetric; technical; terms; universal; university; vector; � �
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        item: #1078 of 1243
          id: ap-7660
      author: Taira, Takanobu
       title: Complex topological soliton with real energy in particle physics
        date: 2022-02-28
       words: 7999
      flesch: 71
     summary: We note that the explicit forms of the similarity transformation will not be discussed in this paper as non-Hermitian and Hermitian theories are isospectral as long as the CPT symmetry is preserved for Hamiltonian, Higgs particles and monopole solution. Change in CPT symmetry and complex monopole solution We begin by introducing the useful quantities m21/g ≡ X, µ2/g ≡ Y, µ2/m22 ≡ Z.
    keywords: acta; ansatz; asymptotic; bps; breaking; classical; complex; conditions; cpt; different; differential; dotted; dyson; energy; equation; exceptional; field; figure; finite; fring; gauge; hamiltonian; hermitian; higgs; h±1; h±2; imaginary; limit; line; lower; m22; masses; matrix; mechanism; metric; millington; model; monopole; non; number; operator; parameter; particles; physical; physics; point; polytechnica; positive; quantum; real; region; review; scaling; section; soliton; solutions; symmetry; taira; term; theories; theory; topological; vacuum; value; ϕai
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        item: #1079 of 1243
          id: ap-7668
      author: Escobar-Ruiz, Adrian M.; Montoya, Fidel
       title: Generalized three-body harmonic oscillator system: ground state
        date: 2022-02-28
       words: 4162
      flesch: 62
     summary: In a previous work [4], the most general quantum system of a three-body chain of harmonic oscillators, in Rd, was explored exhaustively. The classical analogue of the quantum Hamilto- nian operator (8) describes an effective non-relativistic 51 Adrian M. Escobar-Ruiz, Fidel Montoya Acta Polytechnica Figure 1. 3-body chain of harmonic oscillators.
    keywords: algebraic; arbitrary; body; case; classical; constants; coordinates; corresponding; dimensional; energy; equal; figure; generalized; ground; hamiltonian; harmonic; hidden; identical; masses; model; operator; oscillator; particles; physics; potential; problem; quantum; schrödinger; solutions; space; spring; state; system; variables; µ12; µ13; µ23; ν12; ν13; ρ12; ρ13; ρ23
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        item: #1080 of 1243
          id: ap-7669
      author: Smilga, Andrei
       title: Modified Korteweg-de Vries equation as a system with benign ghosts
        date: 2022-02-28
       words: 4459
      flesch: 69
     summary: − ψ4x − ψxψt 2 (38) acquires the form LN = N∑ k=1 { [ψxx(kh,x)]2 − [ψx(kh,x)]4 2 − 1 2 ψx(kh,x) ψ[(k + 1)h,x] − ψ[(k − 1)h,x] 2h } , (39) where we impose the periodicity: ψ(0,x) ≡ ψ(Nh,x) and ψ[(N + 1)h,x] ≡ ψ(h,x).7 In recent [18], we outlined two wide classes of benign ghost systems: (i) the systems obtained by a varia- tion of ordinary systems and involving, compared to them, a double set of dynamic variables and (ii) the systems describing geodesic motion over Lorenzian manifolds.
    keywords: acta; ansatz; benign; blow; case; cauchy; classical; conditions; data; derivative; direction; discrete; dynamics; energy; equation; evolution; field; figure; form; functions; ghosts; hamiltonian; higher; initial; lagrangian; mkdv; motion; noise; numerical; ordinary; oscillator; particle; periodic; physical; physics; polytechnica; potential; problem; quantum; review; smilga; solution; spatial; system; time; u(t; uxxx; v(u; values
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        item: #1081 of 1243
          id: ap-7670
      author: Seghman, Petr; Krátký, Lukáš; Jirout, Tomáš
       title: Effect of membrane separation process conditions on the recovery of syngas components
        date: 2022-06-30
       words: 4262
      flesch: 56
     summary: The presented study focuses on inspecting the dependency between process conditions, especially permeate and retentate pressure and component recovery of H2, CO, and CO2 during a membrane separation of model syngas. Keywords: Membrane separation, syngas improvement, components recovery, hollow fibre module.
    keywords: bar; barrer; biomass; co2; component; composition; concentration; conditions; cut; data; dependency; difference; feed; fibre; figure; flow; gas; hollow; ideal; measured; membrane; mixture; model; module; mol; molar; permeability; permeate; polyimide; pressure; process; pure; recovery; retentate; selectivity; separation; stage; study; syngas; s−1; temperature; total; unit; values
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        item: #1082 of 1243
          id: ap-7671
      author: Turbiner, Alexander V.; del Valle, Juan Carlos
       title: From quartic anharmonic oscillator to double well potential
        date: 2022-02-28
       words: 1796
      flesch: 64
     summary: The ground state energy for (5) obtained variationally using the function (9) at p = 0 and compared with LMM results [7], where all printed digits (in the second line) are correct, E(0,0)var = 0.932 517 518 401 , E (0,0) mesh = 0.932 517 518 372 . The first excited state energy for (5) obtained varia- tionally using the function (9) at p = 1 and compared with LMM results [7], where all printed digits (in the second line) are correct, E(0,1)var = 3.396 279 329 936 , E (0,1) mesh = 3.396 279 329 887 .
    keywords: anharmonic; del; double; expansion; function; ground; note; oscillator; parameters; potential; quantum; quartic; results; semiclassical; single; small; state; turbiner; valle
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        item: #1083 of 1243
          id: ap-7672
      author: Contreras-Astorga, Alonso; Fernández C., David J. ; Muro-Cabral, César 
       title: Linearised coherent states for non-rational SUSY extensions of the harmonic oscillator
        date: 2022-02-28
       words: 4908
      flesch: 60
     summary: After the linearisation, we derive coherent states as eigenstates of the annigilation operator and analyse some relevant mathematical and physical properties, such as the completeness relation, mean-energy values, temporal stability, time evolution of the probability densities, and Wigner distributions. Keywords: Supersymmetric quantum mechanics, non-rational extensions, linearised ladder operators, coherent states.
    keywords: annihilation; behaviour; classical; coherent; coherent states; commutation; eigenfunctions; energy; equation; equivalent; evolution; extensions; factorization; fernández; figure; functions; general; hamiltonian; harmonic; heisenberg; hilbert; infinite; intertwining; journal; ladder; linearised; mathematical; mechanics; new; non; operators; order; oscillator; physics; potential; properties; quantum; rational; relation; schrödinger; second; seed; solutions; states; subspace; supersymmetric; susy; transformations; |zν
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        item: #1084 of 1243
          id: ap-7673
      author: Castillo-Celeita, Miguel; Contreras-Astorga, Alonso ; Fernández C., David J. 
       title: Photonic graphene under strain with position-dependent gain and loss
        date: 2022-02-28
       words: 4776
      flesch: 71
     summary: In this zone, there are only two inequivalent points, K± = (± 4π3√3a, 0). If we consider uniform strain in the lattices, which is represented by a strain tensor u = ( u11 0 0 u22 ) , (9) the Fermi velocity is modified in the following form vij = v0(1 + (1 − β)uij ).
    keywords: acta; approach; atoms; carbon; contreras; cosh(2κs; dependent; dirac; equation; fermi; fernández; fibers; field; figure; gain; gauge; graphene; hamiltonian; intertwining; journal; lattice; letters; loss; magnetic; matrix; mechanics; modes; n=1; new; operator; optical; photonic; photonic graphene; physical; physics; points; position; potential; quantum; review; second; solutions; strain; supersymmetric; susy; system; term; transformation; uniform; use; vectors; velocity; γ(s
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        item: #1085 of 1243
          id: ap-7674
      author: Gutiérrez Altamirano, Izamar; Contreras-Astorga, Alonso ;  Raya Montaño , Alfredo
       title: Time-dependent step-like potential with a freezable bound state in the continuum
        date: 2022-02-28
       words: 4418
      flesch: 70
     summary: but before we had A = 0, one can still have a Schrödinger equation without vector potential by tuning appropriately the scalar potential. Keywords: Bound states in the continuum, supersymmetric quantum mechanics, time-dependent quantum systems.
    keywords: acta; behavior; bic; confluent; continuum; dependent; energy; equation; figure; freezable; frozen; function; journal; like; mechanics; physical; physics; point; polytechnica; potential; probability; quantum; review; scattering; schrödinger; sin(ky; solutions; square; state; stationary; step; supersymmetric; susy; system; time; transformation; vector; wavefunction; ψ̄ϵ; ϕ(x
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        item: #1086 of 1243
          id: ap-768
      author: Novotný, P.; Hrivnák, J.
       title: On Orbits of the Ring Zmn under Action of the Group SL(m, Zn)
        date: 2005-01-05
       words: 4890
      flesch: 81
     summary: From the definition of equivalence we have a b SL m a b a bpq~ ( , ), ( ( )� � � � � �A Z A G A) G , where � � � � G A) A) A) ) ) Therefore the stability subgroup of the point (0, …, 0, 1) is: S A A SL m SL m m m n: ( , )| ( , , , � � � � � � � � � � � � � � �A B Z B 1 2 0 0 1 1 � � Zn ) � � � � � � � � � � � � � � , and its order is S n pm m i j j m i r � �� � � � � � 2 1 2 1 1 1( ).
    keywords: action; arbitrary; czech; definition; element; equal; form; group; m m; m n; matrix; mod; number; orbit; orm; p m; prime; ring; set; sl(m; vol; |gcd; � sl; � �
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        item: #1087 of 1243
          id: ap-7684
      author: Řeřicha, Petr
       title: A mindlin shell finite element for stone masonry bridges with backfill
        date: 2022-04-30
       words: 7771
      flesch: 70
     summary: Vx is the standard shear force in element local y − z plane when looking along x axis and Vy is the standard shear force in element local x − z plane when looking along y axis. The matrix ex- pression for vector R⃗ is in terms of g⃗ R⃗ = {g⃗, −g⃗} { Xbe Xbf } Recall that Xbe denotes the third element of the nodal forces matrix of element e at node i and the analogue holds for Xbf .
    keywords: acta; analysis; application; arch; arch bridges; arches; axis; backfill; beam; bed; bed joints; benchmark; bending; bridges; code; components; conditions; conjugate; constitutive; coordinate; cross; deflection; deformation; direction; displacement; dofs; elastic; element; element local; equations; equilibrium; face; failure; figure; finite; finite element; forces; functions; global; joints; linear; load; local; masonry; masonry arch; material; matrices; matrix; mesh; mindlin; models; nodal; node; normal; plane; rigid; rotations; section; shape; shear; shell; shell element; simple; solution; stiffness; stone; strain; stress; stresses; submatrices; system; tension; terms; timoshenko; translational; transverse; tt element; vector; vertices; x axis; xbf; x⃗f; y =; ∂sb; ∂st
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        item: #1088 of 1243
          id: ap-7699
      author: Rachwał, Lesław
       title: How to understand the structure of beta functions in six-derivative Quantum Gravity?
        date: 2022-02-28
       words: 38766
      flesch: 55
     summary: Only in such conditions one can define general scattering problem in quantum gravitational theory. In general, the scattering processes are not every- thing we can talk about in quantum field theories even for on-shell quantities.
    keywords: 1/2022; acta; action; analysis; arguments; background; basis; beta; beta functions; box; case; classical; classical action; classical level; classical theory; coefficients; computation; compute; conformal; conformal gravity; conformal symmetry; consistent; constant; contributions; corresponding; cosmological; counterterms; counting; coupling; covariant; curvatures; d =; degenerate; dependence; derivative; derivative gravitational; derivative gravity; derivative model; derivative operator; derivative quantum; derivative terms; derivative theory; derivative uv; diagrams; different; differential; dimensions; divergent; dynamical; dynamics; effective; einstein; energy; example; expression; fact; feynman; field; field theory; final; final results; finite; fixing; flat; fluctuations; following; formula; functions; fundamental; gauge; gauge theory; general; generic; ghosts; good; gravitational; gravitational action; gravitational field; gravitational theory; graviton; gravity case; gravity model; gravity theory; green; gµν; hessian; higher; higher derivative; independent; interactions; invariant; issue; journal; kinetic; lagrangian; leading; lesław; level; like; limit; limiting; local; logarithm; loop; loop level; loop uv; main; matrix; matter; method; metric; minimal; model; modesto; n =; need; new; non; number; operator; order; original; parameters; partial; parts; perturbative; physical; physics; point; polytechnica; possible; power; prescription; present; problems; procedure; propagator; properties; proportional; pure; quadratic; quantum; quantum conformal; quantum field; quantum gravitational; quantum gravity; quantum level; quantum loop; quantum matter; quantum theory; rachwał; ratio; reduced; regime; related; remark; renormalizability; renormalizable; renormalizable theory; renormalization; results; review; ricci; scalar; scale; second; sector; shapiro; situation; solutions; spacetime; special; stability; standard; stelle; stelle theory; structure; subleading; super; symmetry; tensor; terms; theoretical; theories; theory; trace; type; unitarity; use; uv divergences; values; vol; way; weyl; x4−der
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        item: #1089 of 1243
          id: ap-770
      author: Thinová, L.; Fronka, A.; Milka, D.
       title: Personal Dosimetry Enhancement for Underground Workplaces
        date: 2005-01-05
       words: 1968
      flesch: 42
     summary: With the aim of specifying the calculation of the real effective dose in caves, the following test measurements were carried out a few years ago: natural radioactive element content eval- uation in subsoils and in water inside/outside to study radon sources in the cave; continual radon measurements; regu- lar radon and daughters measurements using a sampling procedure to specify the proportion of radon daughters; regular indoor air flow measurements to study the location of the radon supply and its transfer among individual areas of the cave; 5-day aerosol particle-size spectrum measure- ments to determine the free fraction and to compare the aerosol spectra in an apartment and in a cave; comparative measurements using various radon and daughters monitors to study their behaviour in an area with high humidity (in- cluding Radim 4 – a device for simultaneous detection of radon concentration and concentration of unattached and at- tached fractions of its daughters); monitoring the behaviour of guides and visitors to record time spent in the cave, related to the continuously monitored levels of Rn concentration; some personal monitors for testing the detection of radon and its daughters. Keywords: radon concentration, underground, cave, effective dose, aerosol particles. b)a) Fig.
    keywords: aerosol; air; areas; calculation; cave; concentration; continual; czech; daughters; dose; effective; equilibrium; evaluation; factor; fig; flow; fraction; high; individual; measurements; prague; radon; results; sources; study; technical; time; unattached; underground; university
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        item: #1090 of 1243
          id: ap-7718
      author: Zelaya, Kevin
       title: Time-dependent mass oscillators: constants of motion and semiclasical states
        date: 2022-02-28
       words: 7119
      flesch: 63
     summary: Thus, the semiclassi- cal states ξα(x,t) minimize the Schrödinger-Robertson relationship for t ∈ R. 4. + iη ) , (11) where A(x,t) is a local time-dependent complex-phase and [27] η(t) := m0 2ℏ γ(t)Wγ (t) σ(t) − 1 2ℏ ∫ t dt′ F(t′) µ(t′) , Wµ(t) = σ(t)µ̇(t) − σ̇(t)µ(t), Wγ (t) = σ(t)γ̇(t) − σ̇(t)γ(t), (12) with ḟ(t) ≡ df (t) dt a short-hand notation for the time derivative.
    keywords: a(x; acta; calculations; caldirola; case; coherent; complex; constants; corresponding; dependent; different; discussion; dynamics; eigensolutions; eigenvalue; equation; exact; figure; form; general; hamiltonian; hand; heisenberg; ĥck(t; ĥosc; initial; invariants; îa(t; journal; kanai; leads; m0w0; mass; mathematical; model; momentum; motion; new; non; nonstationary; oscillator; physical; physics; point; polytechnica; position; problem; p̂x; quantum; regularized; relationship; results; robertson; schrödinger; semiclassical; set; solutions; states; stationary; systems; term; time; transformations; uncertainty; w21; zelaya; µ(t; γ(t; ξα(x; σ(t; σ2(t; ψn(x
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        item: #1091 of 1243
          id: ap-772
      author: Čechák, T.; Musílek, L.; Trojek, T.; Kopecká, I.
       title: Application of X-Ray Fluorescence Analysis in Investigations of Historical Monuments
        date: 2005-01-05
       words: 3061
      flesch: 57
     summary: I e I e � � � � � ( , ) 3 Analysis of fresco pigments The X-ray fluorescence equipment was built and is now operated in the Laboratory of Quantitative Methods in the Research of Ancient Monuments at FNSPE.
    keywords: 19th; absorption; analysis; atom; black; century; characteristic; coating; composition; czech; detector; elemental; elements; energy; excitation; fig; fluorescence; fresco; intensity; layer; measurements; methods; ochre; paintings; pigments; prague; process; radiation; ray; red; results; spectrometry; substrate; technical; thickness; university; vol; white; xrfa
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        item: #1092 of 1243
          id: ap-7721
      author: Abed, Hadeel S.; Abdullah, Hikmat N.
       title: Improvement of spectrum sensing performance in cognitive radio using modified hybrid sensing method
        date: 2022-04-30
       words: 5363
      flesch: 49
     summary: Figure 4 presents the same performance as in Fig- ure 3, but in Rayleigh multipath fading, it can be noted that all techniques have the same detection performance as compared with Figure 3, but with a degradation in the probability of detection due to multipath fading, and the matched filter also outper- forms other technique in the case of a good knowledge of PU. 233 Hadeel S. Abed, Hikmat N. Abdullah Acta Polytechnica Figure 5. Pd versus Eb/No of proposed sensing methods under Rayleigh fading and non-cooperative scenario. Method Computational complexity Proposed method CT otalproposed = 4N − 2 + 3o ( N 2 log2 N 2 ) + o ( N 2 ) Hybrid method in [21] Chybrid = 2N + 2N − 2
    keywords: abdullah; acta; autocorrelation; cfd; channel; cognitive; complexity; computational; computational complexity; cooperative; cyclic; cyclostationary; detection; detector; energy; equation; fading; feature; figure; filter; frequency; good; hybrid; hybrid method; improvement; information; journal; low; matched; method; multipath; networks; noise; non; number; performance; polytechnica; probability; process; radio; received; results; samples; scenarios; sensing; signal; spectrum; stage; table; technique; threshold; traditional; wireless
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        item: #1093 of 1243
          id: ap-7723
      author: Beneduci, Roberto; Frion, Emmanuel; Gazeau, Jean-Pierre
       title: Quantum description of angles in the plane
        date: 2022-02-28
       words: 5839
      flesch: 73
     summary: https://doi.org/10.1103/PhysRev.85.166. 15 https://doi.org/10.1080/00927879508825218 https://doi.org/10.1142/S0129055X19500132 https://doi.org/10.1007/BF01883517 https://doi.org/10.1007/s13538-019-00652-x https://arxiv.org/abs/2108.04086 https://doi.org/10.1016/S0034-4877(17)30035-6 https://doi.org/10.1007/978-88-7642-378-9 https://doi.org/10.1016/j.aop.2014.02.008 https://doi.org/10.1119/1.1933744 https://doi.org/10.1119/1.2386162 https://doi.org/10.1103/PhysicsPhysiqueFizika.1.195 https://doi.org/10.1103/PhysicsPhysiqueFizika.1.195 https://doi.org/10.1103/PhysRev.85.166 Acta Polytechnica 62(1):8–15, 2022 1 Introduction 2 Background 2.1 Definition of POVMs 2.2 Integral quantization 3 Euclidean plane as Hilbert space of quantum states 3.1 Mixed states as density matrices 3.2 Describing non-commutativity and finding Naimark extensions through rotations 3.3 Linear polarization of light as a quantum phenomenon 4 Entanglement and isomorphisms 4.1 Bell states and quantum correlations 4.2 Bell inequality and its violation 4.3 Entanglement of two angles 5 Conclusions Acknowledgements References A quantum measurement corresponds to an affine map S(H) 7→ M+(Ω) from quantum states to probability measures, ρ 7→ µρ.
    keywords: angles; basis; bell; case; classical; complex; cos; density; dimensional; entanglement; eϕ+π/2; function; half; hilbert; integral; light; linear; map; matrices; matrix; measurement; mixed; operator; p(ϕa; physics; plane; pointer; polarization; pure; quantization; quantum; real; rϕ0; set; sin; space; states; system; unit; vector; |0⟩; ∣∣∣π
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        item: #1094 of 1243
          id: ap-7733
      author: Mandal, Bhabani Prasad
       title: Rational extension of many particle systems
        date: 2022-02-28
       words: 5820
      flesch: 64
     summary: QES many particle system In this section, we would like to discuss a rational extension of Calogero like many particle systems In this talk, we briefly review the rational extension of many particle systems, and is based on a couple of our recent works.
    keywords: acta; annals; approach; body; calogero; case; classical; eops; equation; exceptional; extended; extension; functions; hermitian; interaction; invariant; isospectral; jacobi; journal; khare; laguerre; letters; mandal; mathematical; model; new; non; orthogonal; oscillator; particle; physics; polynomials; polytechnica; potential; qes; quantum; quesne; radial; rational; section; solution; solvable; susyqm; systems; tcs; terms; theoretical; wave; yadav
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        item: #1095 of 1243
          id: ap-7737
      author: Sabatini, Michel; Havlík, Jan; Dlouhý, Tomáš
       title: Analysis of parameters important for indirect drying of biomass fuel
        date: 2022-06-30
       words: 5190
      flesch: 53
     summary: Sensitivity analysis using penetration model for indirect drying of biomass The aim of the sensitivity analysis of the penetration model is to determine the effect of the change in the v of individual input parameters on its overall heat transfer coefficient and drying rate. The parameter was classified as significant if the change in the heat transfer coefficient or drying rate was greater than 3 % in the analysed range.
    keywords: analysis; bed; biomass; change; chemical; coefficient; conditions; constant; contact; content; coverage; diameter; dryer; drying; emissivity; energy; engineering; experiments; factor; fuel; gas; heat; heated; important; indirect; indirect drying; influence; material; model; moisture; operating; parameters; particle; penetration; period; pressure; process; processing; properties; rate; roughness; sensitivity; specific; speed; stirrer; surface; temperature; thermal; transfer; vacuum; wall
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        item: #1096 of 1243
          id: ap-7738
      author:  Agarwal, Kaustubh S.; Muldoon, Jacob ; Joglekar, Yogesh N.
       title: Conserved quantities in non-hermitian systems via vectorization method
        date: 2022-02-28
       words: 5321
      flesch: 59
     summary: Inspired by the Lindblad density matrix equation, our approach provides a useful addition to the well-established methods for characterizing time-invariants in non-Hermitian systems. Conserved quantities in non-Hermitian systems If λpq is real, we can choose them to be Hermitian, as in the case of a static Hamiltonian.
    keywords: -symmetric; approach; breaking; case; classical; complex; conserved; constant; corresponding; dimer; dotted; dynamics; eigenvalue; equation; evolution; expectation; f(t; figure; floquet; gain; h2(t; hamiltonian; hermitian; hpt; intertwining; joglekar; journal; letters; lindblad; loss; mathematical; matrix; nature; non; observation; operators; optical; parity; periodic; phase; physical; physics; problem; pt -symmetric; quantities; quantum; real; review; section; simple; single; state; static; symmetry; systems; time; unitary; values; η̂1; η̂2; ℜλt3
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        item: #1097 of 1243
          id: ap-774
      author: Tippetts, J. R.; Tesař, V.
       title: Flow Visualisation by Condensing Steam – an Unusual Method Applied to Development of a Low Reynolds Number Fluidic Selector Valve
        date: 2005-01-06
       words: 8281
      flesch: 43
     summary: The task Present authors find flow visualization indispensable for their current development of no-moving-part fluidic devices, in particular flow control valves. Somewhat surprisingly, there does not seem to be any description of this method in authori- tative monographs (e.g. [3, 4]) on flow visualization methods.
    keywords: /addbleedmarks false; /allowpsxobjects false; /ascii85encodepages false; /asreaderspreads false; /autofiltercolorimages true; /bicubic; /compresspages true; /createjobticket false; /detectblends true; /downsamplegrayimages true; /embedallfonts true; /emitdscwarnings false; /encodemonoimages true; /lockdistillerparams false; /optimize true; /parsedsccomments true; /preserveopicomments true; /qfactor; /quality; /subsetfonts true; /tileheight; /tilewidth; /useprologue false; acrobat; adobe; air; condensation; control; czech; false; false /addregmarks; false /allowtransparency; false /autopositionepsfiles; false /convertcolors; false /cropcolorimages; false /cropgrayimages; false /cropimagestoframes; false /embedallfonts; false /endpage; false /generatestructure; false /includebookmarks; false /includeguidesgrids; false /includeinteractive; false /includelayers; false /includeprofiles; false /omitplacedeps; false /parseiccprofilesincomments; false /pdfxnotrimboxerror; false /preserveopicomments; fig; flow; jet; method; model; pdf; reader; sample; state; tesař; true; true /grayimageminresolution; true /parsedsccommentsfordocinfo; true /preservecopypage; true /preservedicmykvalues; true /preserveoverprintsettings; true /startpage; university; valve; visualization; water
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        item: #1098 of 1243
          id: ap-776
      author: Tesař, V.
       title: Time-Mean Helicity Distribution in Turbulent Swirling Jets
        date: 2005-01-06
       words: 6877
      flesch: 52
     summary: The profile shape may be improved by a long nozzle exit channel, but this generates a thick boundary layer (degrading the outer parts of the profile) and the inevitable fast dissipation of the swirl decreases the achiev- able magnitude of nozzle exit helicity. 4.2 Similarity of helicity profiles in the jet The profiles of the time-mean helicity density were evalu- ated from the individual components of the velocity and vorticity vectors by computing the time-mean variant of the expression Eq.(1) � � � �w w w1 1 2 2 3 3� � � � (2)
    keywords: 6/2005; acta; adobe; angle; attack; axial; basic; case; character; chirality; components; computations; control; czech; czech technical; density; diameters; distance; downstream; edge; effect; energy; equation; evaluated; exit; experimental; fact; false; fig; flow; flowfield; fluid; generator; helical; helicity; helicity density; helicity profiles; house; http://ctn.cvut.cz/ap/; idea; important; inlet; investigations; jet; large; layer; local; magnitude; mean; mean helicity; model; momentum; negative; nozzle; nozzle exit; polytechnica; positive; prague; present; profiles; publishing; rate; relative; results; rotation; shape; similarity; small; structures; swirl; swirling; tangential; technical; technical university; tesař; time; true; turbulent; university; upstream; values; vanes; velocity; vol; vortex; vorticity; wall
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        item: #1099 of 1243
          id: ap-778
      author: Abdelaziz, T. H. S.; Valášek, M.
       title: A Complete Parametric Solutions of Eigenstructure Assignment by State-Derivative Feedback for Linear Control Systems
        date: 2005-01-06
       words: 8420
      flesch: 68
     summary: i i ij k ij k ijf� � � � �Q Q P B11 12 1 1 0( ) ( ) ( )( ),� � � � 0 and � �w v w wijk i The closed-loop characteristic polynomial is given by � det ( )� � � ���I I BK
    keywords: assignment; b �; bkn �; bn �; closed; control; controllable; czech; derivative; eigenstructure; eigenvalues; eigenvectors; false; feedback; following; gain; generalized; ij ij; ij k; input; k k; k n; linear; loop; matrix; mi �; n ij; n n; parameter; parametric; pij; problem; rank; right; s �; set; solution; space �; state; system; technical; true; university; variable �; vectors �; vol; wv �; � c; � cn; � det; � f; � n; � qi; � rn; � v; � vij; � w; � �
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        item: #1100 of 1243
          id: ap-780
      author: Dynda, V.
       title: Generic Platform for Failure Recovery in Survivable Trees
        date: 2005-01-06
       words: 6784
      flesch: 59
     summary: Graph S acts as an underlying network for a tree-topology overlay network modeled as graph T � (��, ��), where �� �� represents tree nodes, �� is a finite set of core tree edges representing overlay communication links connecting individual nodes ��. Consider T � (��, ��) to be an overlay tree network, �� ��� and �� T to be a connected vertex-induced subgraph of T. Failure of faulty cluster �� causes T to be partitioned into fragments Ti, i � 1, 2, …, N � card ( AT(��)), where card ( AT(��)) is cardinality of a neighbor set of �� in T.
    keywords: acta; algorithm; application; bypass; cluster; communication; cycle; czech; data; diameter; direction; dmax; election; failed; failure; failure recovery; fault; fig; fragments; grandfather; group; ieee; large; leader; link; methods; multicast; n j; n n; network; nodes; number; overlay; peer; platform; polytechnica; prague; properties; protection; reconnection; recovery; requirements; ring; root; routing; rt �; scale; scheme; single; size; source; specific; survivable; system; technical; tolerance; topology; traffic; tree; university; vol
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        item: #1101 of 1243
          id: ap-782
      author: Večeř, P.; Kreidl, M.; Šmíd, R.
       title: Condition Indicators for Gearbox Condition Monitoring Systems
        date: 2005-01-06
       words: 5530
      flesch: 57
     summary: The ability of a selected condition indicator to describe the degree of gearing wear was tested using vibration signals ac- quired during durability testing of manual transmission with helical gears. Generally three type of signal are used: a raw, a residual and a difference signal.
    keywords: 6/2005; acoustic; acta; adobe; amplitude; analysis; cis; condition; crest; czech; damage; data; debris; detection; difference; distribution; emission; energy; factor; failure; false; fig; frequency; gearbox; gearing; good; house; http://ctn.cvut.cz/ap/; increases; indicators; kurtosis; level; mean; mesh; monitoring; na4; number; oil; order; parameter; peak; polytechnica; prague; publishing; residual; rms; sensitive; signal; square; systems; technical; test; time; tooth; trend; true; university; use; value; vibration; vibration signal; vol
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        item: #1102 of 1243
          id: ap-784
      author: Ficker, T.
       title: On Deterministic Chaos in Microdischarge Phenomena
        date: 2005-01-06
       words: 3549
      flesch: 38
     summary: For example, the three-dimensional (d � 3) pseudo-vectors �(3) with the component interval �N � 2 can be written as follows � � � 1( ) ( ) ( ) 3 3 3 1 3 5 2 2 4 6 2 � � � � � � � � � U U U U U U U Un n n i j k d U U U U U ( ) ( ) ( ) ( ) ( ( ) � � � � � � � � � � � � 2 2 1 � � � � �U j d N� �( ) )
    keywords: /bicubic; /documentcmyk; /qfactor; /quality; /tileheight; /tilewidth; acrobat; adobe; chaos; correlation; czech; deterministic; documents; electrical; false; ficker; fig; high; iec61966; microdischarges; pdf; prepress; pulses; reader; series; srgb; system; technical; true; university; vol; voltage
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        item: #1103 of 1243
          id: ap-786
      author: Čermáková, E.
       title: Magnetization of Steel Building Materials and Structures in the Natural Geomagnetic Field
        date: 2005-01-06
       words: 3813
      flesch: 56
     summary: What is called the effective magnetic moment mG is therefore established as a projection of the vector mtot into the direction of the opposite vector J, which is sufficient to describe the basic magnetic phenomena given by the rela- tionship between vectors mG and J. Vector J (and also mG) can take only discrete positions in the direction of the magnetic field (the projections JH of vec- tor J in the direction of field H are given as multiples of Planck’s constant � � h ( )2� , in the form J MH G� �; MG is the quantum number for the projection of the total moment of the atom momentum into the axis of quantization. (5) The geomagnetic field described above magnetizes ferro- magnetic materials (involving various alloy steels, cast iron, steel reinforcement of panels, various types of building steels) which become magnetized even by weak magnetic fields and keep this condition also after the external magnetic field has been removed.
    keywords: -5 -5; 6/2005; acta; adobe; atom; b/10; building; changes; crystal; czech; deformation; direction; external; false; ferromagnetic; field; fig; geomagnetic; geomagnetic field; hmr; house; http://ctn.cvut.cz/ap/; induction; magnetic; magnetometer; materials; meridian; moment; natural; output; pdf; polytechnica; prague; profile; publishing; skeleton; steel; technical; time; total; true; university; vector; vol
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        item: #1104 of 1243
          id: ap-788
      author: Kubalík, P.; Kubátová, H.
       title: Parity Codes Used for On-Line Testing in FPGA
        date: 2005-01-06
       words: 5655
      flesch: 63
     summary: [12] we used format converting tools, parity circuit generator tools and simulation tools. FAIL (circuit N-1) Input Check bits (circuit N-1) Original combinational circuit Original combinational circuit Check bits generator Check bits generator 1 4 2 5 6 3 Fig. 8: Proposed structure of TSC circuits implemented in FPGA [8] Kubalík, P., Kubátová, H.: “Design of Self Checking Circuits Based on FPGA.”
    keywords: adobe; area; benchmarks; bits; cases; ced; checking; circuit; code; combinational; coverage; czech; design; detection; error; example; experiments; false; fault; fig; format; fpga; generator; hamming; input; level; line; logic; lut; matrix; memory; minimization; network; number; original; output; overhead; parity; parity bits; pla; primary; process; properties; property; redundancy; self; set; single; software; table; technical; test; time; tools; true; tsc; university; vector
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        item: #1105 of 1243
          id: ap-790
      author: Mervart, L.; Čepek, A.
       title: Geoinformatics Study at the Czech Technical University in Prague
        date: 2005-01-06
       words: 3397
      flesch: 48
     summary: We believe that the new courses on geoinformatics, with an intensive focus on the theoretical background, will help us to attract more talented students, who will be able to collabo- rate on software projects of a scientific nature, as described above. However, our goal is also to open the new study branch to other fields, namely to geaduates of other bachelor programs at our faculty, e.g., Environmen- tal Engineering or the existing study branch Geodesy and Cartography Geoinformatics Geodesy and Cartography Geoinformatics � Environmental Engineering (or Water Engineering and Water Structures) System Engineering in the Building Industry (IT)
    keywords: 6/2005; acta; adobe; bachelor; bernese; branch; calculus; cartography; computer; courses; credits; czech; data; degree; development; earth; education; elective; engineering; false; fig; free; geodesy; geodetic; geoinformatics; gps; house; http://ctn.cvut.cz/ap/; information; institute; master; mathematical; network; new; pdf; polytechnica; prague; processing; program; project; publishing; real; science; seismic; sem; social; software; stations; students; study; system; table; technical; time; true; university; vol
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        item: #1106 of 1243
          id: ap-7909
      author: da Cruz, Daniel Magalhães; Clain, Fernanda Mazuco; Guilherme, Carlos Eduardo Marcos
       title: Experimental study of the torsional effect for yarn break load test of polymeric multifilaments
        date: 2022-10-31
       words: 5544
      flesch: 60
     summary: Linear density test, Tex In the characterisation methodology of each of the multifilament materials In addition to optimal torsion values, this conclusion is paramount, the test procedure makes a general recommendation that does not optimise the breaking strength.
    keywords: acta; breaking; clain; data; density; effect; elongation; equation; experimental; figure; force; function; groups; guilherme; high; hmpe; increase; iso; linear; linear density; literature; load; materials; mathematical; maximum; mechanical; metre; model; modulus; mooring; multifilaments; offshore; optimal; point; polyamide; polyester; polyethylene; polymeric; polytechnica; recommendation; results; rio; rupture; square; standard; strength; study; table; test; tex; torsion; torsional; turns; twist; values; yarn; ybl
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        item: #1107 of 1243
          id: ap-792
      author: Kuhlenkoetter, B.
       title: Development of a Robot System for Advanced High Quality Manufacturing Processes
        date: 2006-01-01
       words: 2278
      flesch: 38
     summary: In the course of the project presented here, a new genera- tion of robot systems is originating that can process sensory feedback to surface errors, and can establish and carry out experience-based optimum error compensation strategies. (Fig. 4) 4 Optimized automation through innovative robot systems
    keywords: acta; automation; complex; czech; development; error; fig; grinding; high; house; http://ctn.cvut.cz/ap/; industrial; manual; manufacturing; new; offline; operator; optimization; optimizing; polishing; polytechnica; prague; process; processes; processing; production; programming; project; quality; robot; software; surface; system; technical; university; use; vol; workpiece
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        item: #1108 of 1243
          id: ap-794
      author: Mamtani, G.; Green, G.
       title: Reliability Risk Evaluation during the Conceptual Design Phase
        date: 2006-01-01
       words: 4048
      flesch: 58
     summary: Henceforth, 8 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 46 No. 1/2006 Czech Technical University in Prague Reliability Risk Evaluation during the Conceptual Design Phase G. Mamtani, G. Green Systematic evaluations of concept designs involve considering a range of criteria. Keywords: reliability, concept design.
    keywords: ahp; application; available; comparison; concept; conceptual; criteria; czech; decision; design; entropy; example; fig; function; functionality; hierarchy; main; matrix; method; phase; priorities; process; product; prt; r3i; relative; reliability; respect; seat; section; structure; table; technical; temperature; university; weights
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        item: #1109 of 1243
          id: ap-7953
      author: Khrabustovskii , Andrii ; Znojil , Miloslav
       title: Analytic and Algebraic Methods in Physics
        date: 2022-02-28
       words: 1023
      flesch: 34
     summary: For all of these reasons, the organizers of the AAMP series came to the conclusion that one of the possible reactions to the unpleasant current circumstances would be an enrichment of the internet-mediated standard 1 https://creativecommons.org/licenses/by/4.0/ https://www.cvut.cz/en Andrii Khrabustovskii, Miloslav Znojil Acta Polytechnica form of the meetings (in which one listens to talks for a few days, without having a real opportunity of discussing the subjects in the couloirs) via a return to an apparently obsolete practice of a subsequent preparation and publication of at least some of the talks in their written, more lasting and better accessible form, better suitable for the subsequent critical re-evaluation. In comparison with the AAMP meeting itself (where the separate subjects covered by 36 talks have been subdivided into 12 sections), a minor disadvantage of our present SI lies, from the point of view of its readers at least, in the (traditional) alphabetical ordering of the contributions by their first authors.
    keywords: aamp; acta; acta polytechnica; algebraic; analytic; conferences; form; issue; meeting; methods; physics; polytechnica; readers; series; special; subjects; talks
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        item: #1110 of 1243
          id: ap-796
      author: Rehák, B.
       title: Design of a Predictive Hierarchical Controller Using FEMLAB
        date: 2006-01-01
       words: 4663
      flesch: 70
     summary: The functions u, x, � that solve the minimization problem also satisfy the following set of equations on the interval (T, TH) (DxF, or DuF denotes the de- rivative of function F with respect to variable x or u.): � �� ( ), ( )x f x t u t� � � � �� ( ), ( ) ( ), ( ) ( )� �� �D j x t u t D f x t u t tx x � � � �0 � �D j x t u t The optimization problem P[T(k � 1)Tv, �((k � 1)Tv] is solved.
    keywords: barrier; boundary; control; controller; cost; czech; design; dynamic; equation; femlab; fig; following; function; hierarchical; interval; k �; level; lower; opt; opt opt; opt t; optimal; optimization; problem; solving; state; system; t t; t w; technical; time; trajectory; u t; u u; university; upper; � j
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        item: #1111 of 1243
          id: ap-798
      author: Drahovzal, O.
       title: Company Value, Real Options and Financial Leverage
        date: 2006-01-01
       words: 1826
      flesch: 66
     summary: Free cash flow is given by the fol- lowing equation: FCF EBIT t AD INV� � � � �( )1 , (1) where EBIT is earnings before interest and taxes, t is tax rate, AD is the amount of amortization and depreciation, and INV is the value of the investments. X e N drt� � � � ��( ) ( )1 2 , (4) d S X r t t1 2 2 � � � � � � � � � � � � � � ln � � , (5) d d t2 1� � �� , (6) where S is the current price of the asset, X is the strike price of the asset, r is the risk-free interest rate, t is time to expiration of the option, N () is the standard normal cumulative distribu- tion function and � is the volatility of the price of the asset.
    keywords: a.s; capital; cash; company; czech; debt; debt ratio; dr �; equity; evaluation; financial; flow; formula; free; method; option; prague; ratio; technical; total; university; value; wacc
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        item: #1112 of 1243
          id: ap-800
      author: Saafan, M. A. A.
       title: Shear Strengthening of Reinforced Concrete Beams Using GFRP Wraps
        date: 2006-01-01
       words: 6400
      flesch: 58
     summary: 3: Load-deflection curves for control beams with web rein- forcement 0 10 20 30 0 1 2 3 4 5 6 Midspan deflection (mm) C8 C10 C13 C8F C10F Fig. 4: Load-deflection curves for control beams with no web rein- forcement 0 10 20 30 40 0 2 4 6 8 10 Midspan deflection (mm) S8FP S8FU S8FR C8 Fig. 5: Load-deflection curves for shear strengthened beams 0 10 20 30 40 50 0 2 4 6 8 10 Midspan deflection (mm) S10FP S10FU S10FR C10 Fig. 6: Load-deflection curves for shear strengthened beams expected. A further increase in the cracking load was recorded in shear strengthened beams as the com- posite extended along the shear span (66 percent of the span) and thus the cracks were forced to occur along a limited por- tion of the beam.
    keywords: acta; beams; bond; bonding; capacity; composite; concrete; concrete beams; control; control beams; crack; curves; czech; debonding; deflection; design; different; fabric; failure; fiberglass; fig; flexural; flexure; frp; gfrp; group; house; http://ctn.cvut.cz/ap/; increase; layers; load; lower; mode; mpa; plates; polyester; polytechnica; ratio; reinforcement; repair; results; shear; shear capacity; shear reinforcement; shear strength; span; steel; strengthened; strengthening; stress; table; technical; tensile; tension; test; thickness; ultimate; university; vol; web; web reinforcement; wraps
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        item: #1113 of 1243
          id: ap-802
      author: Pekař, J.; Štecha, J.
       title: Identification and Predictive Control by p-norm Minimization
        date: 2006-01-01
       words: 3876
      flesch: 73
     summary: y t u t u t� � �{ ( ), ( ), , ( ), ( ), }1 1� � leads to minimization of error vector � �� � �e t e t T( ), ( ),1 � . The previous problem is weighted Least Squares: min ( ) ( ) , ( ) ( ) x D b Ax D� � � p� � � 2 2 2 diag .
    keywords: control; criterion; czech; fig; identification; input; linear; minimization; model; norm; output; predictive; problem; programming; quadratic; results; squares; system; t t; technical; time; u t; university; vector; vol; y t; � �
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        item: #1114 of 1243
          id: ap-804
      author: Tesař, V.
       title: Similarity Solutions of Jet Development Mixing Layers Using Algebraic and 1-Equation Turbulence Models
        date: 2006-01-01
       words: 11377
      flesch: 56
     summary: (34) Unfortunately, the only points at which all five values f, u, g, , n are known are the two extremes at the theoretical boundaries �1EQ � � � and �1EQ � � �. 15: Solutions for the dimensionless velocity u obtained by nu- merical integration of the set of equations d df u� � , d du g� � , and d dg f� � � in the direction of the positive transversal similarity co-ordinate �ALG .
    keywords: 1eq �; acta; algebraic; axial; boundary; case; central; character; comparison; conditions; constant; curvature; czech; d d; data; definition; different; dissipation; distance; downstream; energy; eqs; equation; equilibrium; experimental; fact; fig; flows; fluctuation; g �; gradient; görtler; house; http://ctn.cvut.cz/ap/; integration; jet; jets; k s; layer; local; mean; mixing; mixing layer; model; momentum; negative �; nozzle; ordinate; outer; point; polytechnica; prague; prandtl; present; problem; production; profiles; publishing; rate; relative; results; scale; shear; similarity; similarity solution; small; solution; starting; streamwise; submerged; technical; terms; tesař; thickness �; time; transformation; transformed; transport; transversal; turbulence; university; useful; values; velocity; vol; w k; � alg; � �
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        item: #1115 of 1243
          id: ap-806
      author: Bokr, J.; Jáneš, V.
       title: Logical Structural Models with Multiplexors
        date: 2006-01-01
       words: 2364
      flesch: 73
     summary: hence 58 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 46 No. 1/2006 Czech Technical University in Prague Fig. 2: Multiplexor and the element of the sum modulo 2 – M2 Fig. 3: Decomposition maps of the function from Example 2 y � � � � � � � x x x x x x x x x x x x x x x x 1 2 3 1 2 3 4 5 1 2 3 4 1 2 3 1 0 0 ( ) ( ) ( ) ( ) x x x x x x x x x x x x x x x x x 2 3 4 5 1 2 3 4 5 1 2 3 4 1 2 3 4 ( ) ( ) ( ) ( ) � � � � � as well as y � � � � � � � � x x x x x x x x x x x x x x x x x 4 5 4 5 2 3 4 5 1 2 2 3 2 3 4 5 0( ) ( ) ( ) ( 1 2 3 2 3� �x x x x ). If one cannot decide whether to construct f (X) or f X( ), then if w f X w f XH H m m m m( ) ( ), , , , , ,� � � � � �1 2 1 22 2 2 2� � or w f X w f XH H m m m m( ) ( ), , , , , ,� � � � � �1 2 1 22 2 2 2� � � then z x� 1 and y � � � �x f x x f x1 1 1 10 1( ) ( ) or z x� 1 and y � � � �x f x x f x1 1 1 10 1( ) ( ) respectively.
    keywords: arguments; czech; decomposition; fig; function; multiplexor; structural; university; y �; � �
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        item: #1116 of 1243
          id: ap-808
      author: Bokr, J.; Jáneš, V.
       title: State of a Logical Object
        date: 2006-01-01
       words: 4945
      flesch: 66
     summary: ( / ) : , { } [{ }] {[ X X X x x x x x x x N N� � � � � � � � � ] }x .� We have still to define the right-side congruence Nerode equivalence � on X N; the input words x x xi i i 0 1 � � and x x xj j j 0 1 � � (i j� ) are said to be right-side congruent, if there holds � � �� �2 0 1 2 0 1( ) ( ){ }, { },e x x x e x x xi i i j j j� �� � � � � � �2 0 1 1 2( ){ },e x x x x x xi i i� �� � � � � �� � � � �2 0 1 1 2( ){ },e x x x x x xj j j� � For the transition function �2 there is (i j� ): � { } { }x x x x x xi i i j j j 0 1 1 0 1 1 � � � �� �� � � �� �{ } { }x x x x x x x xi i i j j j 0 1 1 0 1 1 � � � � � � � { } { }x x x x x xi i i j j j 0 1 1 0 1 1 � � � �� �� � � � � � �{ } { }x x x x x x x xi i i j j j 0 1 1 0 1 1 � � � � � � where � � means either = or � , � { , } { }a x e� � is legitimate. The response y� is a value of the output function: � � � � � � �: : ,{ } { } { }[ ] [ ]H X Y h x y� � � of an output block O of the object, where h� is the instanta- neous input prehistory.
    keywords: automaton; circuit; czech; delay; fig; follower; function; initial; input; j j; logical; model; moment �; nondeterministic; object; output; s s; s x; s �; state; state s; stimulus; table; technical; transition; university; word; x n; y �; � t
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        item: #1117 of 1243
          id: ap-810
      author: Soliman, H. F.; Attia, A.-F.; Hellal, M.; Badr, M. A. L.
       title: Power System Stabilizer Driven by an Adaptive Fuzzy Set for Better Dynamic Performance
        date: 2006-01-02
       words: 4063
      flesch: 67
     summary: The differential equations that describe the system under study are as follows: � � � � � � � � � � � � � � � � �T D K K e M m q1 2 (1) � �� � �� � �b (2) � � � � � � � � � � � � � � e E K T e T Kq FD do q do 4 3 � (3) � � � � � � � � � � � � � � � � � � Where a b c dj i j i j i j i( ) ( ) ( ) ( ), , , � � and a b c dj i j i j i j i( ) ( ) ( ) ( )� � � .
    keywords: acta; adaptation; adaptive; afs; controller; czech; dynamic; ffs; fig; flc; fuzzy; house; http://ctn.cvut.cz/ap/; input; lines; linguistic; logic; membership; mfs; output; parameters; polytechnica; power; proposed; pss; results; rules; set; sets; simulation; speed; system; table; technical; time; university; variables; vol
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        item: #1118 of 1243
          id: ap-812
      author: Attia, A.-F.; Soliman, H.; Sabry, M.
       title: Genetic Algorithm Based Control System Design of a Self-Excited Induction Generator
        date: 2006-01-02
       words: 4766
      flesch: 59
     summary: 3.1 PI-Controller with a variable gain A program has been developed to compute the value of the variable integral gain KIV using the following rule: if e e K K elseif e e K K V V IV IV V V IV IV ( ), ; ( ), min min max ma � � � � x min max max min max m ; ( ), ( ) ( else e e e M K K e e V V V IV IV V V � � � � � in min min ); ; ( ) ; C K M e K M e C en d IV V IV V � � � � � � where eV is the voltage error, eVmin and eVmax are the mini- mum and maximum values of the voltage error, respectively, KIVmin and KIVmax are the minimum and maximum values of the variable integral gain, respectively, C is a constant and M is the slop constant of the linear part. d d � � � qs b qs s qs dst V R i� � � �( ), (12) where: �b is the base speed.
    keywords: acta; algorithm; angle; axis; bank; capacitor; chromosome; circuit; controller; current; cycle; czech; duty; dynamic; equation; equivalent; fig; frequency; gains; generator; genetic; house; http://ctn.cvut.cz/ap/; induction; integral; kiv; load; parameters; performance; pi controller; pitch; polytechnica; power; prague; publishing; reactive; results; rotor; seig; simulation; speed; stator; study; switching; system; technical; terminal; time; turbine; university; value; variable; voltage; wind
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        item: #1119 of 1243
          id: ap-814
      author: Brož, P.
       title: Some Effects on Fatigue Strength
        date: 2006-01-02
       words: 4721
      flesch: 52
     summary: Only biaxial stress systems need be considered in the case of those materials in which cracks are initiated at a free surface and the three failure criteria most commonly used (that is, maximum principal stress, maximum shear stress, and the maximum shear – strain energy or von Mises) may be expressed by the formulae: maximum principal stress � �� � � � � �e x y x y xy� � � � � 2 1 2 42 2 1 2( ) , (5a) maximum shear stress � �� � � �e x y xy� � �( )2 2 1 24 , (5b) von Mises � �� � � � � �e 2; they can be expressed in the form � � � � � � � � � � � � �� � � � �� � � � c m m n R 1 , (2)
    keywords: bending; combined; compressive; criterion; czech; data; fatigue; fatigue limit; fig; goodman; limit; line; loading; material; maximum; mean; mean stress; mises; modified; mpa; phase; ratio; shear; steel; strength; stress; stresses; surface; technical; tensile; torsion; torsional; uniaxial; university; value; von; � �
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        item: #1120 of 1243
          id: ap-8157
      author: Klesa, Jan
       title: Determination of fan design parameters for light-sport aircraft
        date: 2022-10-31
       words: 3955
      flesch: 65
     summary: 5/2022 Determination of fan design parameters for light-sport aircraft where ζ01 = 0.1 (based on CFD simulations from [10]). 5/2022 Determination of fan design parameters for light-sport aircraft Figure 4.
    keywords: aircraft; axial; constant; contraction; cross; density; dependence; design; determined; diameter; different; duct; efficiency; electric; fan; fan design; fan diameter; figure; flight; flight speed; flow; high; h−1; model; nozzle; nozzle contraction; parameters; point; power; pressure; propulsion; ratio; ratio a1; red; results; rpm; speed; sport; static; system; s−1; temperature; thrust; total; ul-39; velocity; κ−1
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        item: #1121 of 1243
          id: ap-816
      author: Pecherková, P.; Nagy, I.
       title: Mixture Based Outlier Filtration
        date: 2006-01-02
       words: 3773
      flesch: 60
     summary: 5 Conclusions A new type of filter detecting outliers and data recon- struction has been described and demonstrated on a serial of examples. If the chosen component is that of the outliers, � generate data prediction using the data component, � use the predicted value as a reconstruction of the observed data, � use the predicted value in the (future) regression vector of the data component, � re-evaluate parameter statistics for the outlier com- ponent only.
    keywords: acta; algorithm; bayesian; big; blocks; component; control; czech; data; data component; detection; estimation; experiments; filter; kárný; mixture; model; modelling; nagy; observed; outliers; parameters; polytechnica; prague; prior; process; processing; regression; results; standard; statistics; table; technical; time; uncorrupted; university; value; vol; weight
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        item: #1122 of 1243
          id: ap-8177
      author: Zehawi, Raquim N.; Kareem, Yassir A.; Khudhair, Emad Y.
       title: Reduction of pavement thickness using a subgrade layer treated by different techniques
        date: 2022-10-31
       words: 4974
      flesch: 61
     summary: Such cases often result from the sen- sitivity to a high-water content, low specific gravity, and low shear strength, along with many undesirable characteristics of highway pavement subgrade soils. The process of stabilising subgrade soil is both efficient and cost effective in most cases, because road paving materials are generally less expensive than replacing the existing subgrade with stronger materials [2].
    keywords: aashto; acta; addition; additives; afa; ash; cbr; chemical; concrete; cost; crumb; design; diyala; effect; engineering; financial; flexible; fly; gravity; grc; highway; increase; journal; layer; lime; low; materials; method; pavement; pavement thickness; percentage; plasticity; polytechnica; process; properties; ratio; recycled; reduction; research; results; road; rubber; samples; soft; soil; specific; stabilisation; strength; study; subgrade; table; test; thickness; type; use; value; waste; water
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        item: #1123 of 1243
          id: ap-818
      author: Dočekal, A.; Kreidl, M.; Šmíd, R.
       title: System for 3D Visualization of Flaws for Eddy Current Inspection
        date: 2006-01-02
       words: 2677
      flesch: 62
     summary: A matrix formed of EC signal values resulted from the data acquisition process, see Fig. (8) This result requires calibration especially due to the non- -linear principle of EC inspection.
    keywords: angle; bevel; current; czech; data; depth; eddy; fig; flaw; fourier; inspection; method; position; prague; probe; processing; sample; scanning; signal; signature; size; surface; system; technical; university; vector; visualization; vol
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        item: #1124 of 1243
          id: ap-820
      author: Kalvoda, L.; Aubrecht, J.; Klepáček, R.
       title: Fiber Optic Detection of Ammonia Gas
        date: 2006-01-02
       words: 4975
      flesch: 55
     summary: Central ion (Me2�) Counter-ion � � (nm), L1 � � (nm), L2 Fe2� (Br�)2 96 76 Co2� (Br�)2 105 82 Ni2� (Cl �)2 108 70 Cu2� (Cl �)2 125 70 Cu2� SO4 2� 129 70 Zn2� SO4 2� 81 69 Hg2� (NO3 �)2 106 80 Pb2� (NO3 �)2 98 68 Table 1: Bathochromic shifts � � resulting from creation of com- plex ions [L-Me-L]2�. In the research stage described here, the following objectives were adopted: (i) to choose reagent(s) suitable for further studies on optical fibres by evaluating the optical absorption spectra of two suitable organic dyes and their metallic com- plexes in solution, (ii) to prepare sensing fibre samples by diffusion of the reagent into a plastic clad silica (PCS) fibre cladding using the frequently applied procedure elaborated by our research group in frame of the CEC Copernicus programme [13, 9, 14], (iii) to test the concentration and temporal response to ammonia gas exposure by VIS-NIR absorption spectroscopy measurements on short fibre sec- tions, and (iv) to pre-evaluate the qualitative features of an OTDR signal by measurements on a longer fibre, only partially sensitized with the selected reagent.
    keywords: absorption; acta; ammonia; chemical; cladding; complex; complexes; concentration; curve; czech; detection; dye; ethanol; exposure; fibre; fig; gas; house; http://ctn.cvut.cz/ap/; intensity; interval; length; level; ligand; light; local; long; measurements; metallic; nir; nitrogen; observed; optical; otdr; polymer; polytechnica; ppm; prague; prepared; publishing; pulse; range; reaction; reagent; reflection; reflectometry; region; resolution; sections; sensing; sensitization; sensitized; sensors; short; signal; so4; spectra; spectroscopy; system; technical; time; university; vol
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        item: #1125 of 1243
          id: ap-822
      author: Šimeček, I.
       title: A Simple Cache Emulator for Evaluating Cache Behavior for SMP Systems
        date: 2006-01-02
       words: 1639
      flesch: 67
     summary: The Cache Emulator (CE) can simulate the behavior of caches inside an SMP system and compute the number of cache misses during a computation. No. 2/2006 A Simple Cache Emulator for Evaluating Cache Behavior for SMP Systems I. Šimeček Every modern CPU uses a complex memory hierarchy, which consists of multiple cache memory levels.
    keywords: behavior; bus; cache; code; coherence; cpu; czech; data; emulator; example; memory; misses; number; operations; program; smp; software; system; technical; university; user; write
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        item: #1126 of 1243
          id: ap-826
      author: Šimeček, I.
       title: Performance Aspects of Sparse Matrix-Vector Multiplication
        date: 2006-01-03
       words: 2487
      flesch: 65
     summary: Loop unrolling-and-jam applied to the example code (Uf � 2) s1 � 0.0; s2 � 0.0; for i � 1 to n step 2 do s1 � s1 � A[i]; s2 � s2 � A[i+1]; s � s1 � s2; 1.2.3 Software pipelining The initial instruction(s) of the first iteration is/are moved into the prologue phase, and the final instruction(s) of the last iteration is/are moved into the epilogue phase. 4 Results Evaluation of the results: � Using structures ( SpM×V_(a) )
    keywords: acta; array; cache; code; csr; czech; data; elements; fig; format; house; http://ctn.cvut.cz/ap/; instruction; loop; matrix; modification; multiplication; nonzero; performance; polytechnica; prague; publishing; rows; software; sparse; spm×v; technical; university; unrolling; vector; vol
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        item: #1127 of 1243
          id: ap-828
      author: Robbe, M.-F.
       title: A Porosity Method to Describe Complex 3D-Structures Theory and Application to an Explosion
        date: 2006-01-03
       words: 12282
      flesch: 71
     summary: I grad v grad v� � � � � � pressure ��� � � �2 3 ( ) � � � viscous stresses � �������� �������� where p is pressure, I the unit tensor, and the dynamic viscosity. The average values � and � are linked by: � � � �.
    keywords: acta; area; argon; baffle; bubble; ccp; central; channel; closure; code; components; conf; control; core; css; cylinder; czech; czech technical; diagrid; div; external; f f; f t; fig; flows; fluid; gas; grad; heat; house; http://ctn.cvut.cz/ap/; intermediate; internal; internal vessel; joining; lepareux; lower; main; main vessel; mara; mars; mass; mechanics; method; mock; model; mpa; neutron; nuclear; panache; plates; plug; polytechnica; porosity; porous; prague; pressure; proc; publishing; reactor; robbe; roof; shell; shielding; simulation; stresses; structures; support; technical; technical university; university; upper; v v; vessel; vol; volume; water; wave; whirlpool; zone; � �
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        item: #1128 of 1243
          id: ap-830
      author: Brož, P.
       title: Metal Fatigue Features
        date: 2006-01-03
       words: 5758
      flesch: 60
     summary: On a microscopic scale, fatigue crack growth is often an ir- regular process. 5: Various periods of fatigue life and applicable considerations In conjunction with the well-known Paris equation, it has to be recognized that fatigue crack growth is subject to physi- cal laws.
    keywords: acta; alloys; crack; crack growth; cycle; cyclic; czech; data; design; different; electron; environment; expected; factor; failure; fatigue; fatigue crack; fig; fracture; free; grains; growth; high; house; http://ctn.cvut.cz/ap/; initiation; large; length; life; limit; lips; load; low; material; mechanics; metal; microcracks; microscope; mild; mode; period; polytechnica; prague; problem; propagation; publishing; rate; shear; slip; small; specimen; steel; strength; stress; striations; structure; surface; technical; tensile; test; tip; university; value; vol; � k
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        item: #1129 of 1243
          id: ap-8300
      author: Can, Erol
       title: Extra control coefficient additive ECCA-PID for control optimization of electrical and mechanic system
        date: 2022-10-31
       words: 4184
      flesch: 69
     summary: The equation of the second order and PID system is given in Equation (22). 2. Design with PID controller Although the PD control from three controllers brings attenuation to the system, it does not affect the steady state behaviour of the system.
    keywords: coefficient; control; control system; controller; decision; ecca; error; extra; figure; gain; method; moment; order; oscillation; output; pid; pid control; process; reference; response; rise; settling; signal; step; system; time; traditional; unit; values
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        item: #1130 of 1243
          id: ap-832
      author: Rieger, F.
       title: Determination of Rheological Parameters from Measurements on a Viscometer with Coaxial Cylinders
        date: 2006-01-03
       words: 3681
      flesch: 64
     summary: 2.2 Bingham plastics The simplest model for viscoplastic behavior is the Bing- ham model �� � 0 for � �� 0 (10 a) � � � � �� � � � � � � p 0 � � for � �� 0, (10 b) where �p is plastic viscosity and �0 stands for yield stress. Czech Technical University in Prague 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.2 0.4 0.6 0.8 1 y* * � � � 0 � � � 0.1 � � � 1 Fig. 4: Dependence ��* on y* for � � 0.5 and selected values �* (�c* � 1.24) 0 2 4 6 8 10 12 14 16 18 0 0.2 0.4 0.6 0.8 1 y* � � � 0 * � � � 5 � � � 50 Fig. 5: Dependence � *� on y* for � � 0.9 and selected values �* (�c* � 83.9)
    keywords: behavior; czech; dependence; fig; flow; index; k n; n n; radius; rate; ratio; shear; technical; university; values; � k; � �
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        item: #1131 of 1243
          id: ap-834
      author: Lidmila, M.; Horníček, L.; Krejčiříková, H.; Tyc, P.
       title: Problems in Different Measuring and Assessment the Modulus of Deformation Using the Czech and German Methodologies
        date: 2006-01-03
       words: 3113
      flesch: 51
     summary: The value of the total mean plate insertion from the loading branch of the second cycle is en- tered in the chart with a simultaneous calculation of the modulus of deformation using general formula: E p r y � � 1 5. , where E is static modulus of deformation It is determined from the loading chart, from the inclination of the secant line between two points given by the value of the 0.3- and 0.7-multiple of the maximum load, using the general formula: E r sv � � �15. � � � , where Ev is static modulus of deformation [MPa], r load plate radius, i.e. 0.15
    keywords: 15sd; box; correlation; czech; deformation; determined; e10; experimental; field; granulated; gravel; layer; load; loading; mean; measurements; methodology; model; moduli; modulus; mpa; plate; plate load; sand; static; table
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        item: #1132 of 1243
          id: ap-8348
      author: Khantoul, Boubakeur; Bounames, Abdelhafid
       title: Exact solutions for time-dependent complex symmetric potential well
        date: 2023-05-02
       words: 4621
      flesch: 67
     summary: The pseudo Hermitian invariant operator and time-dependent non-Hermitian Hamiltonian exhibiting a SU(1,1) and SU(2) dynamical symmetry. Introduction The discovery of a class of non-Hermitian Hamilto- nian that may have a real spectrum has prompted a revival of theoretical and applied research in quan- tum physics.
    keywords: acta; airy; complex; dependent; eigenvalues; equation; exact; exp; function; g(t; h(t; hamiltonian; hermitian; hermitian hamiltonian; hermitian invariant; hermiticity; ih(t; invariant; journal; maamache; mass; mathematical; method; non; operator; particle; physical; physics; polytechnica; potential; probability; pseudo; quantum; real; region; review; s(t; schrödinger; solutions; symmetric; symmetry; systems; t)⟩; time; transformations; unitary; w(t; |ϕn; ∣∣ψhn(t; ∣∣ϕphn
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        item: #1133 of 1243
          id: ap-8351
      author: Maharaj, Adhir; Leach, Peter G. L.; Govender, Megan; Day, David P.
       title: Linearisation of a second-order nonlinear ordinary differential equation
        date: 2023-03-02
       words: 2478
      flesch: 59
     summary: In the search for solutions of differential equations, one discovers the beauty of the algebraic properties that the equations possess. Differential equations: Their solution using symmetries.
    keywords: analysis; differential; equation; form; function; general; journal; leach; lie; maharaj; mathematical; nonlinear; order; ordinary; point; properties; second; solution; symmetries; symmetry; transformation; university; vaidya; variable
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        item: #1134 of 1243
          id: ap-836
      author: Baroňák, I.; Vozňák, M.
       title: CaC in ATM – the Diffuse Method
        date: 2006-01-03
       words: 4537
      flesch: 63
     summary: If C CFB� is valid than CFB � � � �� � � � � 2 2 12 . In the same manner as for CFB we can derive CIB, during which time we start from relation (8), and we get CIB � � � �� � � � � 2 2 22 , (14) where the artificial variable is determined � �� � �2 2� �ln( ) ln( ).
    keywords: accepted; atm; bandwidth; buffer; capacity; cdf; cell; cfb; change; cib; clr; connections; constant; czech; diffuse; diffuse method; fig; finite; infinite; line; loss; mbit; method; network; number; parameter; pcr; possible; rate; ratio; series; service; store; technical; time; university; values
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        item: #1135 of 1243
          id: ap-838
      author: Bíba, J.; Vokřínek, J.
       title: Multi-agent Contracting and Reconfiguration in Competitive Environments using Acquaintance Models
        date: 2006-01-04
       words: 5855
      flesch: 48
     summary: 3.2 Contract setting An extension of levelled commitment contracts has been introduced by Excelente-Toledo et al. Keywords: multi-agent systems, competitive environments, reconfiguration, decommitment, contract price, penalty. may consequently harm the others.
    keywords: account; acquaintance; acta; agent; algorithm; business; collaborative; commitments; common; competitive; conference; contract; contracting; cooperation; costs; customer; czech; decision; decommitment; enterprise; environments; goal; house; http://ctn.cvut.cz/ap/; ieee; individual; knowledge; limitation; margin; means; model; multi; need; negotiation; partners; party; penalties; penalty; polytechnica; price; proceedings; process; profit; provider; publishing; reconfiguration; resources; respect; setting; social; systems; technical; university; usa; utility; variable; variant; vol; welfare
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        item: #1136 of 1243
          id: ap-840
      author: Drahovzal, O.
       title: Supply Chain in Electro-Energetics and Real Options
        date: 2006-01-04
       words: 1891
      flesch: 54
     summary: Be- fore attempting to determine the value of the connection, it is important to take into account what might occur during cooperation with producer, and the principle underlying the cooperation: 1) Prediction of consumption is higher than the amount of electricity purchased � production of the source can be increased, or production can be started (substitution of negative deviation by the costs for the electricity pro- duced). 2) Prediction of consumption is lower than the amount of electricity purchased � production of the source can be decreased or stopped (substitution of positive deviation by the costs for non-produced electricity). The Black-Scholes formulas for standard Euro- pean call and put options have the following form: C S N d X N drt� � � � ��( ) ( )1 2e (3) P S N d X N drt� � � � � � � ��( ) ( )1 2e (4) d S X r t t1 2 2 � � � � � � � � � � � ln � � (5) d d t S X r t t2 1 2 2 � � � � � � � � � � � � � � � � � ln , (6) where S is the current value of the asset, X is the strike price of the asset, N() is the standard normal cumulative distribution function, r is the risk-free interest rate, t is time to expiration of the option, and � is the volatility of the price of the asset.
    keywords: approach; company; connection; czech; deviations; distribution; electricity; following; input; market; negative; options; price; producer; real; results; supply; system; transmission; value
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        item: #1137 of 1243
          id: ap-842
      author: Havlíček, L.
       title: Financing of Liabilities Beyond the Service Life of Nuclear Installations
        date: 2006-01-04
       words: 4833
      flesch: 48
     summary: When the first generation of nuclear power plants was built, nuclear liabilities were not taken into account and contributions to such a fund was not an organic part of product (electricity) price. Especially in countries where there was no clear border between the civilian and military nuclear program, past nuclear liabilities will have to be covered from the state budget.
    keywords: account; area; assemblies; assessment; atomic; basic; connected; containers; costs; countries; czech; decommissioning; disposal; disposed; electricity; energy; european; financial; fission; fuel; funds; future; inflation; installations; intermediate; legislation; liabilities; liability; life; long; nuclear; nuclear power; operation; operator; period; plant; power; principle; radioactive; radioactive waste; rate; rawra; reactor; repository; republic; resources; responsibility; state; storage; technical; time; uranium; waste; year; čez
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        item: #1138 of 1243
          id: ap-8426
      author: Lindh, Per; Lemenkova, Polina
       title: Utilising Pareto efficiency and RSM to adjust binder content in clay stabilisation for Yttre Ringvägen, Malmö
        date: 2023-05-02
       words: 11952
      flesch: 54
     summary: Finally, to examine the variables important for soil stabilisation, we also evaluated the effect of the amount of binder and the interaction between cement/lime/slag in different ratios: 30-50-20 %; 50-50-0 %; 100-0-0 % Despite widespread applications in civil engineering and extensive existing research, there are still some challenges in soil stabilisation, including the following: (1.)
    keywords: //doi.org/10.1061/(asce)mt.1943; acta; agents; analysis; anova; approach; ash; bbd; best; binder content; binders; blend; blended; box; case; ccd; cement; civil; civil engineering; clay; clayey; components; compressive; conditions; construction; content; curing; data; deep; design; development; different; effective; effects; efficiency; engineering; engineers; equation; evaluation; experimental; factorial; factors; figure; fine; fly; following; framework; gain; geotechnical; ggbfs; ground; high; https; improvement; institution; interaction; journal; laboratory; lattice; lemenkova; level; lime; lindh; linear; materials; methods; mixing; mixture; model; modelling; modified; new; opc; optimisation; order; pareto; performance; plasticity; points; polina; polytechnica; portland; proceedings; process; processing; properties; pure; quadratic; quality; quicklime; reaction; required; response; results; road; rsm; runs; samples; set; significant; simplex; slag; soil; soil stabilisation; specimens; stabilisation; stabilised; standard; statistical; strength; study; surface; sweden; swedish; table; tested; testing; tests; time; types; use; values; variables; vol; water; works
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        item: #1139 of 1243
          id: ap-8428
      author: Shete, Sangeeta; Joshi, Prasad
       title: Comparative study of state space averaging and PWM with extra element theorem techniques for complex cascaded DC-DC Buck converter
        date: 2023-03-02
       words: 6526
      flesch: 65
     summary: Analytical techniques for DC DC converters and 1Φ inverters: A comprehensive review. State space averaging technique The state-space averaging method is based on analytical operations for the converter states comprising the determination of linear state model for each possible configuration of circuit and subsequently combining all these elementary models into a single and unified one through a duty factor.
    keywords: acta; analysis; analytical; approach; averaging; buck; cbc; circuit; comparative; complex; condition; conference; control; converter; current; determination; eet; electronics; element; equation; extra; figure; frequency; function; high; ieee; il1; il2; joshi; l1c1; l1c2d; mathematical; modelling; order; output; polytechnica; port; power; pwm; pwm switch; ratio; rc2; req; results; sepic; simulation; small; space; ssa; state; steady; study; switch; switches; switching; table; technique; time; transfer; vc1; vc2; voltage; ; 
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        item: #1140 of 1243
          id: ap-844
      author: Lakkundi, V.
       title: Ultra Wideband Communications: History, Evolution and Emergence
        date: 2006-01-04
       words: 1579
      flesch: 50
     summary: It will have the ability to support multiple devices, and even multi- ple independent piconets, so neighbours will not interfere with other UWB networks. UWB radios are designed to use coherent wide-rela- tive-bandwidth propagation, which has no Rayleigh fading.
    keywords: 1960s; acta; applications; bandwidth; communications; czech; data; development; devices; evolution; fig; frequency; high; history; http://ctn.cvut.cz/ap/; location; low; modulation; network; polytechnica; power; pulse; radar; radio; standards; systems; technology; time; ultra; university; uwb; wideband; wireless
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        item: #1141 of 1243
          id: ap-846
      author: Málek, J.
       title: Bayesian Classifier for Medical Data from Doppler Unit
        date: 2006-01-04
       words: 1302
      flesch: 52
     summary: For each class, selected signal features were extracted and then used for training a Bayesian classifier. 1.1 Classes Normal course – Signals acquired by an examination of arter- ies without peripheral arterial disease (PAD) – Fig. 1.
    keywords: arterial; arteries; blood; classes; classification; classifier; data; disease; examination; features; fig; liberec; medical; modal; multi; pad; pdf; peripheral; prior; probability; signals; time; velocity
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        item: #1142 of 1243
          id: ap-848
      author: Mysliveček, O.
       title: A business process model as a starting point for tight cooperation among organizations
        date: 2006-01-04
       words: 1208
      flesch: 52
     summary: Keywords: Business process management, business process model, outsourcing, joint venture, poster 2006. Business process management involves activities that should identify problems (or just a need for improvement) in the workflow of processes.
    keywords: bpm; business; companies; company; cooperation; important; inputs; management; model; outsourced; outsourcing; partner; process; processes; products; step
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        item: #1143 of 1243
          id: ap-8497
      author: Chand, Madhusmita; Paitandi, Mamoni; Gupta, Mahendra Kumar
       title: Qualitative sign stability of linear time invariant descriptor systems
        date: 2023-07-04
       words: 5929
      flesch: 65
     summary: Matrix pairs which are stable, independent of their magnitudes with only sign information are denoted as Qualitative Sign Stable (QLSS) matrix pairs and Qualitative Sign Unstable are denoted as ‘QLSU’ ma- trix pairs. Matrix pairs, whose stability/instability depend upon the magnitude information of the matrix pair elements, are denoted as Magnitude Dependent Stable/Unstable (MDS/U) matrix pairs.
    keywords: bad; conditions; control; descriptor; diagonal; ecological; eij; elements; form; good; information; interactions; linear; links; magnitude; matrix; matrix pair; nbad; necessary; negative; nlc; number; pair; paper; positive; qlsu; qualitative; qualitative sign; sign; stability; stable; structure; sufficient; systems; time; total; unstable; ζnet; ηbad; ηng; − −
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        item: #1144 of 1243
          id: ap-850
      author: Salinger, J.
       title: Measurement of Solar Cell Parameters with Dark Forward I-V Characteristics
        date: 2006-01-04
       words: 2272
      flesch: 61
     summary: If there are, for example, two deep levels of approximately the same concentration, however, the standard extracting tech- nique will lead to incorrect values of deep level energy. In the case of silicon, which is widely used in photovoltaic appli- cations, the way to achieve thermal equilibrium, is either by Auger recombination or by capturing free charge carriers on energy levels that lie in the band that separates the conduc- tion and valence band (the forbidden band, or the band gap).
    keywords: band; carriers; cell; characteristics; charge; current; dark; deep; density; dependence; diode; efficiency; energy; factor; fig; lattice; le2; levels; lifetime; method; parameters; range; recombination; region; resistance; samples; shunt; solar; temperature
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        item: #1145 of 1243
          id: ap-852
      author: Spiertz, M.; Rusert, T.
       title: Central Decoding for Multiple Description Codes based on Domain Partitioning
        date: 2006-01-04
       words: 2286
      flesch: 59
     summary: 6: Highest rate decoder (solid line) vs. intersection decoder (dotted line), gaussian source with unit-variance and zero mean, rate: 2bpss Fig. 7: Lena 512×512, highest rate decoder (solid line) vs. linear superposition decoder (dotted line), PSNR for central de- coder: 30dB Fig. 8: Lena 512×512, highest rate decoder (solid line) vs. inter- section decoder (dotted line), PSNR for central decoder: 30dB The second, more complex approach is at least as good as the highest rate reconstruction, and by proper choosing of quantization intervals, a significant reduction of the distor- tion at the central decoder is possible. (3) By applying more than one quantizer intervals, formula (3) becomes: x L U ii i� �(max( ), min( )), .
    keywords: central; coding; decoder; decoding; descriptions; different; domain; fig; highest; ieee; intersection; intervals; linear; lower; mdc; multiple; quantization; quantizer; rate; reconstruction; redundancy; results; source; superposition; vol
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        item: #1146 of 1243
          id: ap-8536
      author: Farkas, Izabella  Ingrid; Pelantová, Edita; Svobodová, Milena
       title: From positional representation of numbers to positional representation of vectors
        date: 2023-07-04
       words: 9256
      flesch: 74
     summary: An origin of such numeration sys- tems can be found in works [11] and [12] of A. Vince, showing that for any expansive matrix M ∈ Zm×m, there exists a digit set D ⊂ In [15], it is shown that for M ∈ Zm×m with det M = ∆ ̸= 0, there ex- ists a finite digit set D ⊂
    keywords: acta; addition; algebraic; algorithm; base; base m; complex; computable; denote; digit; digit set; eigenvalue; example; expansive; fact; find; find(m; finite; form; function; integer; j dj; j∈z; j∈z m; l=0,l; lattice; lemma; linear; local; m j; matrix; matrix m; means; minimal; non; number; numeration; parallel; pelantová; perd; periodic; polynomial; polytechnica; positional; proof; p−1∑; representation; set; size; sum; svobodová; system; theorem; unit; vectors; zero; zm×m; ̸=l
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        item: #1147 of 1243
          id: ap-854
      author: Stehle, T.
       title: Removal of Specular Reflections in Endoscopic Images
        date: 2006-01-04
       words: 2843
      flesch: 68
     summary: If F(k) consisted only of two lines at s and N s, i.e. F k F k F s k s F N s k N s( ) �( ) �( ) ( ) �( ) ( )� � � �� � (3) convolution with the window spectrum W(k) would yield for the observed pair � �G s N F s W F s W s G s N F s W ( ) �( ) ( ) � ( ) ( ) ( ) � ( ) ( ) * * * * � � � 1 0 2 1 0� �� �( ) ( ) ,*F s W s2 (4) where �( )F s and �( ) � ( )*F N s F s � are the estimated coeffi- cients.
    keywords: algorithm; deconvolution; endoscopic; error; f s; fig; g n; image; k n; k s; line; n f; n n; n w; pair; physician; reflections; s n; s w; spectral; specular; university; w k
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        item: #1148 of 1243
          id: ap-8549
      author: Litoš, Jiří; Šána, Vladimír; Uhlík, Adam; Kolář, Karel; Nguyen, Markéta
       title: Mechanical and physical properties of cement mixtures for 3D processing
        date: 2023-07-04
       words: 4808
      flesch: 55
     summary: Thanks to a controlled and continuous hydration process, such mixtures retain a sufficient workability time and also have a rapid increase in initial, especially mechanical, properties. Samples placement of tested mixtures in a desiccator.
    keywords: 3d printing; acta; application; bulk; cement; cementitious; changes; coefficient; composites; compressive; concrete; conductivity; construction; days; density; design; development; elements; experimental; figure; formwork; hand; high; important; increase; materials; measured; measurements; mechanical; mixture; physical; physical properties; polytechnica; printing; processing; properties; reference; research; results; robotic; samples; strength; suitable; surface; technology; tensile; test; tested; thermal; thermo; time; use; values; volume; water
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        item: #1149 of 1243
          id: ap-856
      author: Šimek, M.
       title: Embedded Operating System for MicroBlaze
        date: 2006-01-04
       words: 2018
      flesch: 55
     summary: In the case of embedded systems, this allows an increasing amount of their functionality to be moved to software, instead of designing it as a pure hardware solution. Unlike “standard” Linux, uClinux may be used even for embedded systems that have a main memory size as big as an L2 cache in an ordinary personal computer.
    keywords: applications; boot; booting; computer; configurable; controller; core; czech; development; devices; distribution; file; flash; hardware; interface; kernel; loader; memory; microblaze; operating; platforms; processor; project; root; software; standard; strategy; support; system; time; uclinux; work; xilinx
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        item: #1150 of 1243
          id: ap-858
      author: Valoušek, P.
       title: A Digital Loudspeaker: Experimental Construction
        date: 2006-01-04
       words: 1352
      flesch: 57
     summary: A digital loudspeaker is a single device system which uses di- rect D/A conversion for digital audio signals. Keywords: Digital loudspeaker, signal processing, transducer array.
    keywords: array; audio; bit; chain; construction; conversion; data; digital; driving; experimental; fig; frequency; input; loudspeaker; principle; processing; serial; signal; source; streams; system; transducer; unit; vol; wide
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        item: #1151 of 1243
          id: ap-860
      author: Vítek, T.; Pachner, D.
       title: A Reservation Aggregation Framework Design for Demand Estimation
        date: 2006-01-04
       words: 2615
      flesch: 65
     summary: These two sets can be created by ordering the following sets � �R r R r rf i e i m� � � , (8) � �R r R r For a partic- ular date the set can be created by ordering the union � � � �R r r r r r re n n m� �0 1 2 1, , , , ,� .
    keywords: advance; aggregation; check; czech; data; date; day; days; demand; fig; future; hotel; hours; index; indices; interval; management; number; particular; period; price; r r; reservations; set; system; technical; time; university; unknown; vol; yield
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        item: #1152 of 1243
          id: ap-8605
      author: Flídr, Erik
       title: Derivation of entropy production in a fluid flow in a general curvilinear coordinate system
        date: 2023-05-02
       words: 4544
      flesch: 67
     summary: Keywords: Entropy production, fluid flow, general curvilinear coordinates, linear blade cascade, experimental data. 2/2023 Derivation of entropy production in a fluid flow 4.
    keywords: balance; basis; blade; components; control; coordinate; curvilinear; derivation; derivatives; description; differential; distribution; energy; entropy; entropy production; equal; equation; figure; flow; fluid; form; general; geometry; gij; heat; integral; law; momentum; pressure; production; second; stress; surface; system; tensor; thermodynamics; time; vector; velocity; volume; ∂ηj
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        item: #1153 of 1243
          id: ap-8606
      author: Semenov, Stanislav; Mikhailov, Evgeny; Kliuiev, Sergii; Dižo, Ján; Blatnický, Miroslav; Ishchuk, Vadym
       title: Improvement of energy efficiency of a tram’s running gear
        date: 2023-07-04
       words: 7767
      flesch: 56
     summary: Keywords: Energy efficiency, tram’s bogie, simulations, MBS model, railway wheel. Currently, the transport industry is faced with the urgent task of ensuring the energy efficiency of vehicles, including rail vehicles.
    keywords: acta; analysis; average; axle; body; bogie; car; components; condition; considered; construction; consumption; contact; corresponding; creep; curves; design; dissipation; efficiency; energy; energy efficiency; engineering; et al; figure; forces; friction; gear; influence; innovative; installation; kinematic; kinematic resistance; losses; main; mechanical; mechanical energy; model; movement; number; n·kn; perspective; pks; points; polytechnica; possible; power; radial; rail; rail vehicle; railway; research; resistance; results; rolling; rotating; rotation; route; running; running gear; russian; scheme; simulation; sliding; slip; solutions; specific; specific resistance; speed; standard; stock; study; surfaces; system; tks; track; tram; tram car; transport; transportation; use; value; vehicle; wear; wheels; wheelset
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        item: #1154 of 1243
          id: ap-8612
      author: Royaei, Javad; Sadeghi, Kabir; Nouban, Fatemeh
       title: A comparative experimental investigation of high-temperature effect on fibre concrete and high strength concrete using UT and CM methods
        date: 2023-07-04
       words: 4960
      flesch: 49
     summary: Finally, the summary of the comparison of the re- sults of compressive strength tests of concrete samples with a compression machine and the ultrasonic test is as follows in Figure 15. Based on the summary of the comparison of the re- sults of compressive strength tests of concrete samples with the compression machine and ultrasonic test, it Figure 14.
    keywords: //doi.org/10.1016; accuracy; average; building; carbonation; celsius; cement; comparison; compression machine; compressive; compressive strength; concrete; concrete samples; construction; decrease; degrees; design; destructive; different; different temperatures; effect; error; exposure; fibres; figure; fire; high; high temperatures; https; machine; machine test; materials; methods; minutes; mix; non; observed; plastic; research; resistance; results; samples; steel; strength; strength concrete; strength test; structures; temperatures; test error; tests; time; ultrasonic test
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        item: #1155 of 1243
          id: ap-862
      author: Ritty, A.
       title: Directional Loudspeaker Using a Parametric Array
        date: 2006-01-04
       words: 1575
      flesch: 61
     summary: He suggests that the sound pressure of secondary waves (ps) produced by the nonlinear interaction is �p c p t c p t s s p� � � 1 0 2 2 2 0 0 4 2 2 2 � � � � � � , (1) where pp is the sound pressure of primary waves, � is the non- linear coefficient, �0 is air density, and c0 is sound velocity. The nonlinearities of air cause high frequency wave components (primary waves) to interact.
    keywords: acoustics; amplitude; array; audible; cavity; demodulated; distortion; frequency; loudspeaker; modulation; nonlinear; parametric; pressure; primary; processing; pvdf; response; self; signal; sound; transducer; wave
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        item: #1156 of 1243
          id: ap-864
      author: Polyák, T.
       title: Robust Watermarking of Video Streams
        date: 2006-01-04
       words: 1441
      flesch: 65
     summary: After this, there will be large 0 and 1 islands, so that during watermark detection the patterns can be more easily recog- nized, and the watermark will be more resistant to attack. Payload: different applications need watermarks of differ- ent sizes.
    keywords: algorithm; bits; blocks; data; embed; fig; frame; information; key; medium; pattern; quality; robustness; stego; values; video; watermark; watermarking
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        item: #1157 of 1243
          id: ap-866
      author: Pourová, M.; Vrba, J.
       title: Microwave Drying of Textile Materials and Optimization of a Resonant Applicator
        date: 2006-01-05
       words: 1829
      flesch: 61
     summary: By modifying the diagrams on the right side (Fig. 4) we can arrive at the resulting expression for calculating the E-field strength in the textile plane: E e en x n j n n ( , , ) ( ) ( )� �� � � � � �2 1 2 2 1 2 0 tex = + ⋅ − − + = ∞ ∑ , (1) parameters �2 and �tex are given by the dielectric properties of the textile, so we can write the electric field strength de- pendent on relative permittivity �tex and loss factor tg �tex as follows E e e j t t j ( , , ) ( ) ( ) � � � � � � � � � � � tex textg tex tex = − ⋅ + ⋅ ⋅ +2 1 2 e t� � �tex ⋅ − −1 2 21 . Also the complex permittivity of dried textile is not constant during the proce- dure.
    keywords: applicator; cells; content; dependence; distance; distribution; drying; electric; factor; field; fig; loss; microwave; moisture; permittivity; resonator; results; strength; system; textile
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        item: #1158 of 1243
          id: ap-868
      author: Kuhlenkötter, B.; Zhang, X.; Krewet, C.
       title: Quality Control in Automated Manufacturing Processes – Combined Features for Image Processing
        date: 2006-01-05
       words: 3821
      flesch: 57
     summary: Table 2 shows the combined matrix of defects classification using Gabor and statistical features. A large range of methods is introduced to present defect images.
    keywords: acta; automatic; categories; classification; classifier; combined; czech; database; defects; extraction; features; fig; filter; gabor; greyscale; house; http://ctn.cvut.cz/ap/; image; information; label; manufacturing; new; polishing; polytechnica; pore; process; processes; processing; project; pseudo; ratio; real; software; statistical; surface; system; table; technical; university; vision; vol
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        item: #1159 of 1243
          id: ap-870
      author: Dolšak, B.; Novak, M.; Kaljun, J.
       title: Intelligent Support for a Computer Aided Design Optimisation Cycle
        date: 2006-01-05
       words: 5549
      flesch: 51
     summary: 5/2006 Intelligent Support for a Computer Aided Design Optimisation Cycle B. Dolšak, M. Novak, J. Kaljun It is becoming more and more evident that adding intelligence to existing computer aids, such as computer aided design systems, can lead to significant improvements in the effective and reliable performance of various engineering tasks, including design optimisation. Evidently, traditional design optimisation systems that concentrate on numerical aspects of design process are not successful in integrating numerical parts with human expertise [3].
    keywords: actions; advice; aesthetic; analysis; appropriate; cad; case; classification; computer; cycle; data; defects; design; design optimisation; designer; development; different; element; engineering; ergonomic; experience; expert; fea; femdes; fig; final; finite; hand; important; intelligent; knowledge; mesh; module; numerical; optimisation; order; phase; problem; process; processes; processing; product; propose; pseudo; real; redesign; results; rules; software; specific; steps; structural; support; system; tool; university; user; vol
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        item: #1160 of 1243
          id: ap-872
      author: Caputo, F.; Gironimo, G. Di; Marzano, A.
       title: Ergonomic Optimization of a Manufacturing System Work Cell in a Virtual Environment
        date: 2006-01-05
       words: 5085
      flesch: 50
     summary: 5/2006 Operations OP 1 OP 2 OP 3 OP 4 OP 5 OP 6 OP 7 OP 8 OP 9 Score Parameters 1 3 2 1 2 3 2 2 4 S i� � 1 9 Worker Percentile � � � � � � � � � 20 Postural positions � � � � 5 Geometric parameters body Locking point body � � � � � 7 Table 1: Definition of the parameters to be optimized Score value Meaning 0 This is defined as: WEI PEI( )Configuration Wj i i i � �� , (2) where: W Time of Operationi i� Work Cell Time cycle.
    keywords: accessibility; acta; analysis; assembly; association; body; case; cell; critical; design; environment; ergonomics; evaluation; factors; fig; following; geometric; http://ctn.cvut.cz/ap/; human; index; international; jack; manufacturing; method; methodology; new; operation; optimal; optimization; order; owas; parameters; pei; phase; polytechnica; possible; posture; rula; score; simulation; software; studies; study; table; task; technical; time; tools; university; upper; use; value; virtual; vol; wei; welding; work; workers; working; workplace
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        item: #1161 of 1243
          id: ap-874
      author: Sýkora, M.
       title: Advanced Load Effect Model for Probabilistic Structural Design
        date: 2006-01-05
       words: 5957
      flesch: 64
     summary: � � � � � � � � ) ). Using the probability density function (PDF) of an exponential distribution f erenT tt( ) � �� � , the central limit theorem for a sum of �n independent random variables, see Weisstein [8], and the expected value E[ ]Tren �1 �, the probability becomes � � P d P dren ren, [ ( , )]
    keywords: cdf; conditions; czech; derived; distribution; duration; effective; expected; exponential; fig; initial; load; non; number; on“-state; p t; period; point; pon(t; probability; process; processes; pulses; random; renewal; s(t; stationary; structural; t t; t t0; t �; t0eff; t0on; time; ton; tren; vol; z(t
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        item: #1162 of 1243
          id: ap-876
      author: Stenzel, R.; Müller, L.; Herrmann, T.; Klix, W.
       title: Numerical Simulation of Nanoscale Double-Gate MOSFETs
        date: 2006-01-05
       words: 2831
      flesch: 64
     summary: Jp p p p p B p p� � � � � � � �q p D q p k p T� � � �( ) ( ) ( ) (4) Jn n n n n B n n� � � � � � � �q n D q n k n T� � � �( ) ( ) ( ) (5) Jp, Jn current densities (Acm �2) R, G recombination and generation rate (cm�3s�1) �p, �n carrier mobilities (cm 2V�1cm�1) �p, �n quantum correction potentials (V) �p, �n band parameters (V) Dp, Dn diffusion coefficients (cm 2s�1) Tp, Tn carrier temperatures (K) kB
    keywords: basic; channel; characteristics; device; different; doping; drain; energy; equations; fig; gate; hydrodynamic; lengths; model; n n; output; parameters; quantum; semiconductor; short; simulation; source; structure; thickness; tox; tsi; vds; vgs; vol
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        item: #1163 of 1243
          id: ap-878
      author: Poul, R.; Růžička, P.; Hanus, . D.; Blahouš, K.
       title: Design of Carbon Composite Driveshaft for Ultralight Aircraft Propulsion System
        date: 2006-01-05
       words: 2072
      flesch: 62
     summary: Shaft version two did not take the need of low torsional stiffness into account. Shaft version 2 is of relatively low axial stiffness and of still too high torsional stiffness.
    keywords: adhesive; axial; bond; carbon; central; composite; criterion; czech; design; direction; driveshaft; failure; fig; high; hsc; means; modulus; moment; properties; puck; shaft; shear; stiffness; strength; stress; subscript; technical; torsional; version; vol; wall
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        item: #1164 of 1243
          id: ap-880
      author: Weiss, S.; Jänsch, J.; Birkhofer, H.
       title: Term Analysis – Improving the Quality of Learning and Application Documents in Engineering Design
        date: 2006-01-05
       words: 3650
      flesch: 60
     summary: So, when setting up or using text documents for teaching or application, it is essential to provide concept homogeneity. If one uses different termini to describe the same concept, the learner starts to look for differences in the properties and tries to set up a second category or concept.
    keywords: authors; concept; content; design; development; different; documents; e b; e n; fig; homogeneity; important; key; knowledge; learning; list; navigator; pinngate; potential; problem; process; product; properties; quality; step; teaching; term list; termanalysis; termini; text; tool; university; user; variations; vol; words
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        item: #1165 of 1243
          id: ap-882
      author: Zajíček, R.; Vrba, J.; Novotný, K.
       title: Evaluation of a Reflection Method on an Open-Ended Coaxial Line and its Use in Dielectric Measurements
        date: 2006-01-05
       words: 2601
      flesch: 51
     summary: For distilled water, the dielectric constants are: � �� � 78.3, � �s � 4.6, � � � 8.07 ps, � �i � 2 S�m �1, � � � 0.014. In its simplest form, each of these relaxation regions is the manifestation of a polarization mechanism characterized by a single time constant � (relax- ation time � is a measure of the mobility of the molecules and dipoles that exist in a material), which to a first order approxi- mation gives the following expression for complex relative permittivity �r as a function of angular frequency �. � � � � � � �� r r r s� � � �� � � � � � �j j1 .
    keywords: biological; circuit; coaxial; coefficient; complex; czech; dielectric; equivalent; factor; field; fig; frequency; line; loss; material; measured; measurement; method; open; parameters; permittivity; prague; probe; reflection; relative; sample; technical; time; tissue; university; use
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        item: #1166 of 1243
          id: ap-884
      author: Zítek, P.; Vyhlídal, T.; Chyský, J.
       title: Experience of Implementing Moisture Sorption Control in Historical Archives
        date: 2006-01-05
       words: 4674
      flesch: 47
     summary: The model is clearly not suitable for air humidity approaching the state of saturation, i.e. for � � 1, since then the logarithm is not defined. The logarithmic Henderson model was chosen as the most suitable available model, namely its three-parameter version [5] u A T B C � � � � � � � � ln( ) ( ) 1 � , (1) where � � 0 1, is the relative air humidity expressed as a dimensionless ratio, T is air temperature in °C and u is EMC, expressed as the ratio of moisture mass content to the mass of anhydrous material.
    keywords: acta; adjustment; air; air humidity; archives; buildings; changes; collection; constant; content; control; czech; device; emc; environment; equilibrium; etc; exhibits; fig; henderson; historical; house; http://ctn.cvut.cz/ap/; humidity; implementation; interior; materials; measured; measurements; microclimate; model; moisture; moisture content; paper; parameters; polytechnica; proposed; publishing; relationship; relative; samples; sorption; state; t b; table; technical; temperature; třeboň; university; values; variations; vol; wood
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        item: #1167 of 1243
          id: ap-886
      author: Jokl, M. V.; Kabele, K.
       title: Optimal (Comfortable) Operative Temperature Estimation Based on Physiological Responses of the Human Organism
        date: 2006-01-06
       words: 6139
      flesch: 60
     summary: Heat flux within the human body can be represented as (see model in Fig. 4): q q q q G T T R T T m res tr a t,ti i sk t,ti i sk W m � � � � � � � � � ( ) ( ) [ ] 1 2 (2) where Gt, ti is total body thermal conductance, which can be expressed by Eq. 2 Mathematical model of the physiological body response The total heat rate production and its distribution into individual components during heat exchange between the human body and the environment are shown in Fig. 4, where qm � M � W � metabolic heat (see Jokl 1989).
    keywords: acta; activity; air; ashrae; body; buildings; category; changes; clo; clothing; comfort; comparison; conditions; constant; czech; environment; equation; fig; heat; house; http://ctn.cvut.cz/ap/; human; iso; level; line; max; mean; metabolic; min; neutral; onset; operative; opt; optimal; pmv; polytechnica; publishing; range; rate; resistance; results; skin; state; steady; subjects; sweating; table; technical; temperature; thermal; thermoregulatory; time; university; values; vol; vote; zone
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        item: #1168 of 1243
          id: ap-888
      author: Kalvoda, L.; Klepáček, R.
       title: Extraction of Alkali Ions Investigated by Conductometric and pH Measurements
        date: 2006-01-06
       words: 2467
      flesch: 55
     summary: Information about instant, se- lective concentrations of Na�, K�, Mg2� and Ca2� ions has considerable relevance for assays of biological fluids, such as human and animal blood, sap, or, for instance, for tests of drinking water, underground water, water used in the food-processing industry, and waste water. The latter process shows remarkable preference for Na� ions with the selectivity ratio �(Na�)/�(K�) ~ 400
    keywords: alkali; aqueous; basic; cacl2; case; chloride; cladding; complex; concentration; conductivity; czech; extraction; fibre; fig; hexane; hydrolysis; ionophore; lipophilic; membrane; naoh; observed; phase; process; reaction; solutions; target; tbt; technical; temperature; tested; time; university; value; water
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        item: #1169 of 1243
          id: ap-890
      author: Makovička, D.
       title: Response Analysis of an RC Cooling Tower Under Seismic and Windstorm Effects
        date: 2006-01-06
       words: 3036
      flesch: 52
     summary: The temperature of the inter- nal columns and is unaffected by temperature fluctuations in the operation process; therefore these members are left without temperature load. The internal stiffeners and the dia- phragm beam are subject to temperature load only at their edges, where they contact the external walls and ceiling.
    keywords: actions; axis; basic; concrete; czech; design; direction; ductility; dynamic; effects; elements; external; fig; forces; horizontal; internal; load; loading; longitudinal; natural; plate; pressure; reinforcement; response; seismic; states; static; stiffeners; structure; surface; technical; temperature; towers; vertical; vibration; walls; wind
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        item: #1170 of 1243
          id: ap-892
      author: Rieger, F.
       title: Determination of Rheological Parameters from Measurements on a Viscometer with Coaxial Cylinders – Choice of the Reference Radius
        date: 2006-01-06
       words: 1170
      flesch: 70
     summary: If the logarithmic plot of shear stress �r on shear rate �� r is linear, the consistency coefficient K is �-intercept and flow index n is the slope of a straight line. If plot of shear stress �r on shear rate �� r is linear, the yield stress �0 is �-intercept and plastic viscosity �p is the slope of a straight line.
    keywords: equation; fig; newtonian; radius; rate; ratio; shear; stress; viscometer
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        item: #1171 of 1243
          id: ap-894
      author: Elnagahy, F. I. Y.; Haroon, A. A.; Azzam, Y. A.; Alawy, A. El-Bassuny; Elminir, H. K.; Šimák, B.
       title: Embedded Coding of Astronomical Images
        date: 2006-01-06
       words: 3483
      flesch: 60
     summary: The subjective quality tests show that RPSWS reconstructed images are better than SPIHT reconstructed images at lower bit rates, as shown in Fig. 6, 7, and 8. From the results presented here we conclude that the qualities of RPSWS reconstructed images are better than those of SPIHT reconstructed images at lower bit rates for both color and gray scale images.
    keywords: algorithm; astronomical; band; bit; bits; cluster; coder; coding; coefficients; color; components; compression; czech; data; fig; galaxy; gray; images; insignificant; left; pixel; quality; rates; reconstructed; results; right; rpsws; scale; significance; space; spiht; stream; sub; technical; threshold; transmission; university; vol; wavelet
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        item: #1172 of 1243
          id: ap-896
      author: Bořil, H.; Fousek, P.
       title: Influence of Different Speech Representations and HMM Training Strategies on ASR Performance
        date: 2006-01-06
       words: 2433
      flesch: 62
     summary: Are the best models for neutral speech also the best for Lombard speech? HMMs tested with neutral speech appear to converge much earlier than with Lombard speech.
    keywords: bandwidth; case; cepstral; channel; clsd’05; czech; drop; effect; features; female; fig; formant; frequency; hmm; hmms; khz; lombard; mfcc; mixtures; neutral; number; office; performance; plp; recognition; recognizer; speech; speecon; strategies; table; technical; telephone; training; university; vol
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        item: #1173 of 1243
          id: ap-898
      author: Soliman, Hussein F.; Attia, Abdel-Fattah; Mokhymar, S. M.; Badr, M. A. L.
       title: Fuzzy Algorithm for Supervisory Voltage/Frequency Control of a Self Excited Induction Generator
        date: 2006-01-06
       words: 4984
      flesch: 68
     summary: Lds ds L Lds� � � , (24) ( ) ( )L pi v R iL Lqs qs L Lqs� � � , (25) C v t i v L i t R � � � � � � � � � � � � � � � � �d d d dds ds ds L Lds L , (26) C v t i v L i t R � � � � � � � � � � � � � � � � �d d d dqs qs qs L Lqs L , (27) where iLds is the load current in the direct axis, iLqs the load current in quadrant axis, RL the load resistance (�), LL the load inductance (H). im qr qs dr ds� � � �( ) ( ) .2 2 0 5, (13) � �T
    keywords: acta; angle; axis; capacitor; change; controller; current; czech; dynamic; energy; error; fig; flc; frequency; fuzzy; gain; generator; house; http://ctn.cvut.cz/ap/; induction; input; integral; kiv; load; mechanical; output; performance; polytechnica; power; publishing; rotor; seig; simulation; speed; stator; system; terminal; turbine; university; value; variable; voltage; wind
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        item: #1174 of 1243
          id: ap-900
      author: Prajzler, V.; Burian, Z.; Hüttel, I.; Špirková, J.; Hamáček, J.; Oswald, J.; Zavadil, J.; Peřina, V.
       title: Properties of Erbium and Ytterbium Doped Gallium Nitride Layers Fabricated by Magnetron Sputtering
        date: 2006-01-06
       words: 3657
      flesch: 59
     summary: For erbium and ytterbium doping into GaN layers, erbium metallic powder and ytterbium powder or Er2O3 and Yb2O3 pellets were laid on the top of the target. GaN layers are usually grown by epitaxy methods such as Metal Organic Chemical Vapor Deposition (MOCVD) and Molecular Beam Epitaxy (MBE)
    keywords: czech; deposition; doping; epitaxy; er2o3; er3; erbium; fig; films; ga2o3; gallium; gan; gan layers; growth; ions; journal; layers; magnetron; mail; materials; metallic; nitride; optical; pellets; photoluminescence; physics; polytechnica; powder; rbs; room; samples; spectra; sputtering; target; technical; temperature; university; vol; yb3; ytterbium
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        item: #1175 of 1243
          id: ap-902
      author: Bíla, J.; Jura, J.
       title: Fuzzy Concepts in the Detection of Unexpected Situations
        date: 2007-01-01
       words: 5122
      flesch: 64
     summary: g of1 1 1 1� �, ,� � n n (1) Model MSS has in general the following form: MSS S S S Inv Inv� , 1� � � �( ), , ( ) , ( ), , ( )� �n i p , (2) where S represents a basic set of situations, � �1( ), , ( )S S� n are structures on S considered as relevant for UX3 de- tection and Inv Inv( ), , ( )� �i p� are invariants on some � �1( ), , ( )S S� n � �( , , , )i p n� 1 � for UX3 detection.
    keywords: approach; association; basic; block; bíla; case; classes; cognitive; concepts; conf; czech; data; detecting; detection; elements; emergence; example; faults; fdi; fig; following; form; fuzzy; general; inv(; invariant; knowledge; md(ux3; method; model; msf; mss; paper; phase; process; processes; quantities; recognition; rules; set; signals; situations; special; structure; system; technical; type; unexpected; university; ux3; variables; violation; vol; zone; � n; � �
       cache: ap-902.pdf
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        item: #1176 of 1243
          id: ap-904
      author: Siegel, J.; Kotál, V.
       title: Preparation of Thin Metal Layers on Polymers
        date: 2007-01-01
       words: 1619
      flesch: 68
     summary: The power of the plasma dis- charge was constant at a level of 8.6 W. The contact angle of the pristine polymers and of the polymeric sheets directly after plasma treatment, and also of the future development of surface wettability was determined using the Surface Energy Evaluation System device. A rapid decrease in surface wettability for the samples immediately after plasma treatment is obvious from the mea- surements of the dependence of the contact angle on time © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 9 Acta Polytechnica Vol. 47
    keywords: afm; angle; contact; deposition; fig; gold; image; layers; metal; pet; plasma; polymeric; polymers; pristine; ptfe; surface; thickness; time; treatment; vol
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        item: #1177 of 1243
          id: ap-906
      author: Martinez, M. Herrera
       title: Evaluation of Audio Compression Artifacts
        date: 2007-01-01
       words: 2679
      flesch: 53
     summary: Higher levels of signal decomposition, of course, will give more accurate representations of the audio signal, in a similar manner as higher frequency resolution improves the accuracy of the frequency representation of the signal in FFT. DWT, then, has a hierarchical structure in which the higher the level that the decomposition affords, the longer the hierarchical DWT tree. Some authors observe that subband coders give better re- sults when tracking transient signals, but the fixed window length that they apply does not track these signals accurately.
    keywords: artifact; audio; basis; bit; character; coders; coding; coefficients; compression; czech; dct; decomposition; domain; dwt; evaluation; factor; fft; fig; frequency; hybrid; preecho; representation; results; signal; step; structure; subband; subjective; systems; technical; tracking; transform; transient; type; university; vol; wavelet
       cache: ap-906.pdf
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        item: #1178 of 1243
          id: ap-908
      author: Pastor, O.
       title: Indirect Determination of the Risk of Transportation Projects
        date: 2007-01-01
       words: 2161
      flesch: 51
     summary: This development is viewed in terms of time as well as the effects and requirements of the assessed project throughout its life (development period of the territory). The basic blocks for assessing transportation projects can comprise: Direct demand of users:
    keywords: assessment; certain; characteristics; criteria; criterion; czech; determination; development; efficiency; evaluating; fig; global; indirect; locality; monotonous; multi; order; period; project; risk; set; table; time; transportation; university; variants
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        item: #1179 of 1243
          id: ap-910
      author: Pastor, O.; Novotný, P.; Melechovský, J.
       title: Support for Expert Estimations in Transportation Projects
        date: 2007-01-01
       words: 1122
      flesch: 40
     summary: Subjective probabilities have to be applied at this preparatory stage of transportation project. Even in this scheme of application of the Monte Carlo method, subjective probabilities have to be used.
    keywords: analysis; assessment; czech; decision; determining; distribution; expert; factors; information; making; probabilities; probability; project; risk; subjective; transportation; university
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        item: #1180 of 1243
          id: ap-912
      author: Popelová, L.
       title: The Symbolic-Aesthetic Dimension of Industrial Architecture as a Method of Classification and Evaluation: the Example of Bridge Structures in the Czech Republic
        date: 2007-01-01
       words: 5114
      flesch: 61
     summary: 7 Conclusion This paper is a contribution in support of a criterion that will systematically evaluate industrial structures, including bridge structures, from a symbolic-aesthetic perspective. Industrial structures from the Czech Republic are used as examples, and a specific analy- sis is made of two bridges.
    keywords: 1908–1909; acta; aesthetic; architecture; association; bridge; buildings; case; categories; category; centre; charles; city; criterion; czech; dimension; e.g.; example; face; fig; form; heritage; historical; house; http://ctn.cvut.cz/ap/; human; image; important; industrial; industrial structures; koula; left; like; long; metaphor; modern; new; objects; old; paper; perception; perspective; polytechnica; prague; praha; production; publishing; republic; right; role; small; specific; structures; stylistic; svatopluk; symbolic; technical; technical structures; technology; time; towers; typical; unity; university; value; vol; water; way; works; world; čech; čech bridge
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        item: #1181 of 1243
          id: ap-914
      author: Martinez-Val, R.
       title: Flying Wings. A New Paradigm for Civil Aviation?
        date: 2007-01-01
       words: 7753
      flesch: 64
     summary: The present paper discusses the main features of flying wings, their advantages over conventional competitors, and some key operational issues, such as evacuation and vortex wake intensity. This paper discusses the main features of flying wings and blended wing bodies, their advantages over conventional competitors, and some key operational issues, such as airport operation, evacuation, and vortex wake intensity.
    keywords: acta; advantages; aerodynamics; aiaa; aircraft; airliners; airplanes; airport; area; arrangement; aspect; average; aviation; blended; body; bwb; cabin; civil; class; commercial; concepts; conceptual; configuration; consumption; conventional; cruise; current; czech; design; distance; doors; drag; emergency; engines; evacuation; evolution; exits; field; fig; flight; flow; flying; fuel; fuselage; future; great; high; house; http://ctn.cvut.cz/ap/; inner; jet; jets; journal; landing; large; layout; leading; lfc; lift; lower; main; major; martinez; maximum; medium; minimum; mtow; new; number; outer; paper; passenger; payload; polytechnica; publishing; range; ratio; rear; results; seat; servicing; similar; size; skin; space; specific; structural; subsonic; table; technical; terms; time; traffic; transport; university; usa; val; vol; wake; weight; wing
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        item: #1182 of 1243
          id: ap-916
      author: Dunne, G. V.
       title: Functional Determinants for Radially Separable Partial Differential Operators
        date: 2007-01-02
       words: 5523
      flesch: 70
     summary: The primary motivation of this work is for applications in quantum field theory, so we concentrate on examples in two, three and four dimensions, but the mathe- matical generalization to arbitrary dimension should be clear. Consider the radially separable partial differential operators � � � �� V r( ) ;�free � �� (1) where � is the Laplace operator in|R d , and V(r) is a radial po- tential vanishing at infinity as r�2�� for d � 2 and d � 3, and as r�4�� for d � 4. A conventional renormalization choice is to take � � m in (6)–(8).
    keywords: analytic; applications; arxiv; asym; continuation; d �; deg; determinant; differential; dimensions; field; free �; function; hep; jost; l d; l l; l r; math; mr �; operators; partial; phys; potential; quantum; radial; results; rev; s s; s �; separable; sum; terms; theory; vol; yaglom; zeta; � m2; � r
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        item: #1183 of 1243
          id: ap-917
      author: Fischer, M.; Mlček, M.; Konvičková, S.; Kittnar, O.
       title: Computer Insight into the Molecular Level of Heart Failure. What is the Role of NCX?
        date: 2008-01-01
       words: 4294
      flesch: 57
     summary: i e n r E t F RT e ( ) ( ) ( ) ( ) � � � � � � � � �3 2 3 � �Ca t ei n r E t F RT( ) ( ) ( ) ( ) � � � � � � 2 1 and ionic flux as Q t A C V z F I tNaCa cap SC c NaCa( ) ( )� � � � , where k(t) is the saturation parameter (see [8]), Nai (12 mol/m 3) is intracellular sodium concentration, Cae (1,8 mol/m3) is extracellular calcium concentration, n (3) is stoichiometry of Na-Ca exchange, r (0.15) is position of the peak of the energy barrier separat- ing two states – activation and deactivation of the exchanger, E(t) is action potential, F (96485.3415 s�A /mol) is Faraday constant, R (8.3144 J/K�mol) is ideal gas constant, T (290.15 K) is absolute temperature, Nae (140 mol /m 3) is extracellular sodium concentration, Cai(t) is intracellular calcium concentration, Acap (1.534 e 8 m2) is capacitive membrane area, CSC (1 F /m 2) is specific membrane capacity, Vc (25 e 12 m3) is cellular volume, and z (2) is valence of calcium ion. According to some findings that report NCX activity in failing hearts [11], the NCX activity was varied between 50, 75, 100 and 130 % of normal activity.
    keywords: acta; activity; adobe; altered; ca2; calcium; cardiac; cellular; concentration; contraction; contribution; czech; data; ecc; effect; exchanger; experimental; failing; failure; false; fig; force; function; handling; heart; house; http://ctn.cvut.cz/ap/; intracellular; ionic; low; mechanisms; model; molecular; ncx; norm; performance; polytechnica; potential; publishing; rate; relaxation; republic; role; serca; simulation; stores; technical; time; total; true; university; vol
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        item: #1184 of 1243
          id: ap-918
      author: Znojil, M.
       title: PT-symmetric Quantum Chain Models
        date: 2007-01-02
       words: 5013
      flesch: 68
     summary: so that its secular equation � � � � � � � � � �s b a s b a b a b2 2 2 2 2 4 2 220 2 2 64 16 32 2 0( ) (12) is solvable in closed and compact form again, E a b a a b� � � � � � � � �1 2 2 2 4 210 36 12 36 E a b a a b� � � � � � � � �2 2 2 2 4 210 36 12 36 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ 11 Acta Polytechnica Vol. † ( ),� � �� � � � � � � � � � � � � � � � � 1 0 0 1 0 0 1 0 0 1 � � � � � � � � � � � .
    keywords: b b; b c; case; certain; closed; condition; coupling; czech; dimensional; domain �; eep; eep eep; energies; equation; exceptional; form; hermitian; hermiticity; lett; math; matrix; mechanics; metric �; model; n n; non; operators; phys; physical; polynomial; problem; quantum; quasi; real; secular; solution; space; vol; znojil; � -symmetric; � -symmetry; � �
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        item: #1185 of 1243
          id: ap-920
      author: Balková, L’.
       title: Return Words and Recurrence Function of a Class of Infinite Words
        date: 2007-01-02
       words: 5306
      flesch: 78
     summary: For Sb b( )( , )1 0 1 00 1� , one has Ret( ) ,( ) ( )00 1 0 10 0 10 101 1 1 1b b a b b b a b� � � � � � � . n1 0 11 1 0 0( ) ( )( , ) ( , )� � � , n � �, l k n( ) ( )� � 00101 for S k Sn n0 1 1 10 0 1 1( ) ( )( , ) ( , )� �� � , n � �. c)
    keywords: b b; bispecial; factor; function; infinite; left; length; n b; proposition; r n; recurrence; return; right; set; singular; substitution; u u; words; � �
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        item: #1186 of 1243
          id: ap-922
      author: Sergyeyev, A.
       title: Flat Coordinates and Hidden Symmetry for Superintegrable Benenti Systems
        date: 2007-01-02
       words: 376
      flesch: 61
     summary: 47 No. 2–3/2007 Flat Coordinates and Hidden Symmetry for Superintegrable Benenti Systems A. Sergyeyev In this talk I present the results from my paper Exact solvability of superintegrable Benenti systems, J. Math. [2] Błaszak, M., Sergyeyev, A.: Maximal Superintegrability of Benenti Systems, J. Phys.
    keywords: benenti; class; phys; systems
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        item: #1187 of 1243
          id: ap-923
      author: Matoušek, V.
       title: Effect of the Hydraulic Characteristics of a Stream Channel and its Surroundings on the Runoff Hydrograph
        date: 2008-01-01
       words: 9196
      flesch: 63
     summary: Fig. 4 compares the hydrographs in our two channels for rainfalls of a certain periodicity (50 years) and durations cor- responding with the concentration times, i.e. for rainfalls with durations of 35 minutes (reclaimed channel) and 55 minutes (natural channel). The paper proposes a methodology for evaluating the flood waves produced by different (either re- claimed or natural/restored) stream channels.
    keywords: area; channel; coefficient; concentration; concentration time; creek; czech; depth; direct; discharge; dubanka; duration; effect; event; fig; flood; flood event; flood wave; floodplain; flow; flow rate; high; hydraulic; hydrograph; isochrones; lake; maize; maximum; maximum flow; method; minutes; natural channel; outflow; outflow profile; precipitation; profile; rainfall; rate; reclaimed; rozhovice; runoff; slope; smooth channel; stream channel; table; time; valley; value; velocity; volume; water; watershed; wave
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        item: #1188 of 1243
          id: ap-924
      author: Masáková, Z.; Pelantová, E.
       title: Self-Matching Properties of Beatty Sequences
        date: 2007-01-02
       words: 3154
      flesch: 82
     summary: Since �� is a quadratic unit, � �� �� is a ring and, moreover, it satisfies � � � �� � � �� � �� � (6) A cut-and-project set is the set of projections of points of � 2 to V1, that are found in a strip of given bounded width, parallel to the straight line V1. For the de- scription of the projection of �2 on V1 it suffices to consider the set � � � �� �� � � �� �: ,a b a b The integral basis of this free abelian group is ( , )1 �� , and thus every element x of � �� �� has a unique expression in this base.
    keywords: beatty; czech; fibonacci; frequency; irrational; j g; j j; j k; k g; k �; matching; math; project; proof; properties; quadratic; self; sequences; set; theorem; vol; � j
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        item: #1189 of 1243
          id: ap-926
      author: Burdík, Č.; Navrátil, O.; Pošta, S.
       title: Structure of the Enveloping Algebras
        date: 2007-01-02
       words: 5901
      flesch: 60
     summary: f x x f x E x x f x x f x x � � � � � � � 23 34 33 13 11 33 31 12 32 1 0� � � � , ( ) 3 33 14 34 13 11 23 21 43 41 0 � � � � � � � � � � f x x f x x f x x f x x f x � � � � , E x f x x x f x x f x x f x24 21 41 22 44 42 23 43 24 44 � � � � � � � � � � � ( ) x f x x f x x f x E x x f x 14 12 24 22 34 32 14 11 44 4 0 � � � � � � � � � � � � � , ( ) 1 12 42 13 43 14 44 14 11 24 2 � �x f x x f x x f x x f x x f x � � � � � � � � � � 1 34 31 0� �x f x � � . U U U U E U U U E U C U 0 1 12 0 2 12 2 1 1 1� � � � � � � � � � ( ) , ( ) , ( ) ( ) , � From this we can claim that for any n � 0 U U C En k m k m n k m� � � , ( ) 0 2 1 12� (1)
    keywords: algebra; case; czech; decomposition; degree; det; dimension; e e; elements; enveloping; f e; highest; k k; k n; k �; lie; linear; n f; n n; n �; representation; sum; system; vectors; weight; x n
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        item: #1190 of 1243
          id: ap-928
      author: Shapiro, B.; Tater, M.
       title: Root Asymptotics of Spectral Polynomials
        date: 2007-01-02
       words: 2378
      flesch: 71
     summary: We change the variable x t2 � and reduce the Schrödinger equation to 4 4 2 2 4 2 0 2 2 2t f t t bt f t Jt E b f d d d d � � � � � � �( ) ( ) (1) j i jj l � � � � � � �� � � � � �dd d d 2 2 1 11 0 (2) with �1<�2<… �l real and �1, …, �l positive.
    keywords: degenerate; degree; equation; higher; lim; n l; n n; non; operator; polynomials; problem; roots; schrödinger; spectral; stieltjes; van; vleck; vol
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        item: #1191 of 1243
          id: ap-930
      author: Jones, H. F.
       title: The Metric Operator and the Functional Integral Formulation of Pseudo-Hermitian Quantum Mechanics
        date: 2007-01-02
       words: 3759
      flesch: 78
     summary: The operator � � �e Q is in fact precisely the metric opera- tor occurring in � � � � �, ,A A� , (7) because the similarity transformation � � �A A� � 1, � �� � � gives � � � � �� � � � � � � �A A† 1 . P2 1 2( , ) ( )� � , giving p F x P X F P x iQ� � � � � � � � � � 2 2 1 2 .
    keywords: case; cosh �; exp �; functional; hermitian; integral; iq �; j �; mechanics; metric; non; observable �; operator; phys; pseudo; quantum; theory; vol; � -symmetry; � sinh; � �
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        item: #1192 of 1243
          id: ap-931
      author: Haluzová, P.
       title: Effective Data Mining for a Transportation Information System
        date: 2008-01-01
       words: 4334
      flesch: 59
     summary: LnNo number line number PorNo number line order EvCislo text tram-car license number Vozovna number number of the depot (1–8), from which the tram departed A number ID of tram stop B number number of the stop post C number delay (overtake recorded as minus) D number reserve column, without data Table 2: Attributes of daytime traffic tables name of attribute Meaning name of category values of attributes weekday days in a week Monday to Sunday 1 to 7 hour hour interval (e.g. 7 means an interval from 7:00 to 7:59) morning 5, 6 morning rush hour 7, 8 before noon 9, 10 noon 11, 12 afternoon 13, 14 afternoon rush hour 15, 16 evening 17, 18, 19, 20 late evening 21, 22, 23 average delay average delay [s] under 1 min �0, 59� from 1 to 2 min �60, 119� from 2 to 3 min �120, 179� over 3 min > 179 Table 3: Meaning and categories of attributes for each month, generates about 20 000 duplicate records, this corresponds to 1.3 % of the total. 48 No. 1/2008 Effective Data Mining for a Transportation Information System P. Haluzová This paper describes the application of data mining methods in the database of the DORIS transportation information system, currently used by the Prague Public Transit Company.
    keywords: accidents; analysis; antecedent; association; attributes; average; conclusion; contingent; czech; data; database; day; delay; example; fig; high; hour; hypotheses; implication; information; kdd; knowledge; line; lisp; methods; miner; mining; new; number; objects; parameters; prague; precondition; preparation; process; quantifier; records; rules; stop; succedent; system; table; technical; time; tram; university; values; vol
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        item: #1193 of 1243
          id: ap-932
      author: Lévai, G.
       title: PT-symmetry and Non-Central Potentials
        date: 2007-01-02
       words: 2709
      flesch: 64
     summary: In what follows we choose the units as 2 1m � �� . Equation (5) is solvable for the choice Q( ) sin ( )� � �� �2 2 , q � �� �( )1 , (7) when the solutions are given by the associated Legendre func- tions � P� � �cos( ) [5].
    keywords: angular; case; central; complex; dimensions; energy; equation; non; norm; phys; potentials; problems; pseudo; quantum; radial; real; schrödinger; solvable; symmetry; variables; vol; � -symmetric; � �
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        item: #1194 of 1243
          id: ap-934
      author: Fring, A.
       title: PT-symmetry and Integrability
        date: 2007-01-02
       words: 4990
      flesch: 73
     summary: Utilizing now both relations in (15) and the anti-linear nature of the ��-operator, a very simple argument leads to the reality of the spectrum � � � �� � � � � � �� � � � � �H H H�� �� �� ��* * (16) i � � � � � � � � � � † † † † † ( ) ~ ( )( i j ij i a � � � � � � � � � � � �� � ) (1) with a a i i � � †, being standard creation and annihilation ope- rators and �, , ~g g � �, possess a real eigenvalue spectrum [3] (I am grateful to John Cardy for pointing this out).
    keywords: calogero; czech; eigenvalue; equation; field; form; fring; g �; generic �; hamiltonians; hermitian; hermiticity; instance; integrability; integrable; isospectral; j. phys; mechanics; models; new; non; operators; phys; physics; potentials; pseudo; quantum; real; reality; rev; simple; spectrum; supersymmetry; theory; university; vol; � -symmetric; � -symmetry; � bk; � �
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        item: #1195 of 1243
          id: ap-935
      author: Beran, V.; Hromada, E.
       title: Dynamic Simulations in Cost and Time Estimation of the Construction Process
        date: 2008-01-01
       words: 2819
      flesch: 61
     summary: pi i ij� � � . i C project const� � � � .
    keywords: activities; activity; bar; basis; building; calculation; chart; construction; cost; czech; data; duration; dynamic; example; fig; input; model; parameters; particular; probability; production; progress; project; rate; risk; schedule; scope; simulation; table; technical; time; university; work
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        item: #1196 of 1243
          id: ap-936
      author: Bíla, H.
       title: How Do Energies Complexify?
        date: 2007-01-02
       words: 5721
      flesch: 64
     summary: The domain of the Hamiltonian (16) is � �DomH � � � �� �L L L L2 2 2 2( ) ( ) ( ) ( )� � � � . 2.2 Square-root dependence To illustrate the behaviour of eigenvalues on a concrete example, let us consider the simple two-dimensional matrices H � � � � � � � � � � �� c de de c iq iq 1 2 (11) with c d qi, , �. (8) The eigenvalues are given by 2 41 2 1 2 2 2E c c c c d� � � � �( ) .
    keywords: -symmetry; boundary; c c; case; complexification; czech; dependence; diagonalisable; dimensional; dirac; eigenvalues; energies; energy; equation; example; exceptional; form; hamiltonian; hermitian; level; matrices; matrix; max; non; operator; parameters; parametric; physical; points; properties; quantum; r �; real; relativistic; root; second; space; spectrum; square; systems; vol; zero; � -symmetric; � �
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        item: #1197 of 1243
          id: ap-938
      author: Borisov, D.
       title: On a Quantum Waveguide with a Small PT-symmetric Perturbation
        date: 2007-01-02
       words: 1689
      flesch: 73
     summary: d d1 1 1 � � � � �� � � � � �� � � � �� 1 2 � It follows from [2, Th. 1] that if Re k1 0� , or Re k1 0� , Re k2 0� , (7) there exists the unique eigenvalue of �� converging to the threshold of the continuous spectrum, and the asymptotics of this eigenvalue reads as follows � � � �� � �� � � � 1 0 2 1 2 2 3k k k k, ( ),� . The main property of the operator �� is ��-symmetricity expressed by the identity � �� � * � �� � 1, where ( )( ) ( , )�u x u x x� � 1 2 .
    keywords: continuous; eigenvalue; operator; perturbation; spectrum; threshold; u x; � -symmetric
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        item: #1198 of 1243
          id: ap-940
      author: Kochan, D.
       title: Quantization of Equations of Motion
        date: 2007-01-02
       words: 6083
      flesch: 68
     summary: Using it, for any other � within this class we get an oriented loop (cycle): � � � � �� : � � � �1 0class . All of these procedures require in some sense Lagrangian � � �� � and/or Hamiltonian � � �� � functions, such that �� ( , �, )x x x t x x i i
    keywords: amplitude; bundle; ch �; classical; curve; differential; dynamics; equations; exp; extended; feynman; forces; form; functional; initial; integral; lagrange; lagrangian; mechanics; newton; path; physical; potential; probability; problem; q q; q t; quantization; quantum; space; surface; system; t t; tangent; term; time; tm �; transition; umb �; umbilical; university; v t; vol; � class; � �
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        item: #1199 of 1243
          id: ap-942
      author: Ambrož, P.
       title: Matrices Associated to 3-Interval Exchange Transformation and their Spectra
        date: 2007-01-02
       words: 2346
      flesch: 76
     summary: If (1, �1, 1) is a left eigenvector of M associ- ated to � then we have the following dependence between rows of M, denoted by M M M1 2 3� � �, , ( , , ) ( , , )1 1 1 1 1 11 2 3� � � � � �� � �M M M M �� . (4) Using (4) we have � �� � � � � � � � � � � � � � � � � �det det ( , , ) M M M M M M M 1 2 3 1 1 3 1 1 1� 3� � � � � � � � , by subtracting the first and the third row from the second row and by factoring �� out from the second row we obtain � �� � � � � � � � � � � � � det ( , , ) M M 1 3 1 1 1 , which gives (2).
    keywords: det; det m; et �; left; m m; matrices; matrix; mem �; meme; property; � �
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        item: #1200 of 1243
          id: ap-943
      author: Prajzler, V.; Burian, Z.; Jeřábek, V.; Hüttel, I.; Špirková, J.; Gurovič, J.; Oswald, J.; Zavadil, J.; Peřina, V.
       title: Properties of Erbium Doped Hydrogenated Amorphous Carbon Layers Fabricated by Sputtering and Plasma Assisted Chemical Vapor Deposition
        date: 2008-01-01
       words: 3525
      flesch: 59
     summary: Keywords: carbon layers, Erbium, PACVD, sputtering, photoluminescence � PACVD growth of carbon thin films from a gas mixture ( H 2� Ar � erbium isopropoxide or CH4� Erbium tris), � magnetron sputtering placing metallic erbium on the car- bon target. Research on the deposition of carbon layers is mainly focused on the fabrication of dia- mond-like carbon (DLC) or carbon nanotubes.
    keywords: carbon; carbon layers; ch4; chemical; czech; deposition; er3; erbium; fig; films; growth; hüttel; ions; layers; magnetron; mail; optical; pacvd; photoluminescence; prague; samples; sputtering; table; target; technical; temperature; thin; tris; university; vacuum; vol
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        item: #1201 of 1243
          id: ap-944
      author: Jakubský, V.
       title: Pseudo-Hermitian Operators in a Description of Physical Systems
        date: 2007-01-02
       words: 3283
      flesch: 65
     summary: denotes standard scalar product and �� �� � dp p p and �h is the helicity operator. The Hamiltonian of the system plays the role of the gener- ator of time translations, we have U t iHt( ) exp( )� � .
    keywords: construction; czech; description; equation; evolution; explicit; form; hamiltonian; hermitian; mechanics; metric; non; operator; phys; physical; positive; product; properties; pseudo; quantum; real; relativistic; respect; scalar; space; spectrum; spin; system; time; vol; znojil; � �
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        item: #1202 of 1243
          id: ap-946
      author: Günther, U.; Kirillov, O. N.; Samsonov, B. F.; Stefani, F.
       title: The Spherically Symmetric a2–dynamo and Some of its Spectral Peculiarities
        date: 2007-01-02
       words: 4914
      flesch: 68
     summary: Two given branches � ��n ( )0 and � � � m( )0 intersect at the single point � � �� � � � � � � � � � � � � 0 0 0: , :n m n m, and we obtain that branches from states of opposite Krein space type � �� � intersect for � 0 0� , whereas states of the same type (� �� ) intersect at � 0 0� . 3: The spectral mesh of the operator matrix A� for l � 0 (a); its resonant deformation due to harmonic perturbations of a con- stant �-profile (b), (c); the formation of overcritical oscillatory dynamo regimes for � increasing from � � �0 0( )� to � � � � �35 0 0( ,� � for some branches) (d); and the resonant unfolding of DPs in the complex plane (e), (f).
    keywords: -symmetric; acta; bcs; behavior; branches; complex; conducting; czech; diabolical; dynamo; eigenvalue; equation; field; fig; günther; house; http://ctn.cvut.cz/ap/; krein; lett; magnetic; math; mechanics; mhd �; mode; models; new; operator; order; parameter; phys; points; polytechnica; potential; problem; publishing; quantum; real; related; space; spectral; spectrum; stefani; technical; terms; theory; type; university; vol; � -profile; � �
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        item: #1203 of 1243
          id: ap-948
      author: Hosten, P.; Asbach, M.
       title: Detection of Facial Features in Scale-Space
        date: 2007-01-04
       words: 3134
      flesch: 62
     summary: This detector is based on the second moment matrix [7]: �( , , ) ( ) ( , ) ( , ) ( , ) x x x x � � � � � � � i D D i D D x y D x y D g L L L L L L � �2 2 D D 2 ( , )x � � � � � � (3) is easier to compute the trace and the determinant of the sec- ond moment matrix than its eigenvalues, the Harris detector uses the following measure to determine the location of inter- est points [3]: cornerness tracei D � � � � � � � � � � � � � 1 2 1 2 2 2 ( ) det( ( , , )) (� x �( , , ))
    keywords: analysis; classifier; cluster; computer; corner; detection; detector; dimensionality; face; facial; false; features; fig; harris; image; interest; invariant; local; matrix; number; points; recognition; results; rotation; scale; section; set; space; target; test; training; university; vectors; vision; vol
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        item: #1204 of 1243
          id: ap-949
      author: Bičík, A.
       title: Moderna arhitektura u hrvatskoj 1930–IH –Modern Architecture in Croatia 1930’s by Darja Radović Mahečić
        date: 2008-01-01
       words: 1705
      flesch: 49
     summary: 48 No. 1/2008 Moderna arhitektura u hrvatskoj 1930–IH Modern Architecture in Croatia 1930’s by Darja Radović Mahečić A. Bičík Keywords: Croatian modern architecture, functionalism, functionalism in Croatia Book jacket REVIEW buildings are on the list, because they are important for the development of modern architecture in Croatia. In the course of the project a na- tional register of Croatian modern architecture from the pe- riod between 1926 and 1940 was set up.
    keywords: architects; architecture; art; author; book; buildings; competitions; croatian; croatian modern; czech; development; houses; important; index; institute; international; ivan; modern; modern architecture; period; polytechnica; prague; project; public; publishing; register; school; split; technical; town; university; vol; workers; zagreb
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        item: #1205 of 1243
          id: ap-950
      author: Karajica, M.
       title: Valuating the Investment Efficiency of Distribution Companies
        date: 2007-01-04
       words: 4126
      flesch: 57
     summary: � Multi Criteria Decision Making methods, � Data Analysis Envelopment. The mathematical formulation for this exercise is: max h u y v x k j jk j s i ik i r0 0 0 1 1 � � � � � subject to u y v x k k n j jk j s i ik i r � � � � � � 1 1 01 1, , , , , ,� � u j s v i r j i � � � � 0 1 0 1 , , , , , , , , � � where hk0 is efficiency rate of unit k0, xik is i-th input the k-th unit, yjk is j-th output the k-th unit, vi are the weights assigned to the i-th input and uj are weights assigned to j-th output, while i r� 1, ,� , j s� 1, ,� and k k n� 1 0, , , ,� � .
    keywords: analysis; assessment; average; benchmarking; ccr; companies; company; comparison; constant; criteria; czech; czk; data; decision; distribution; e n; efficiency; envelopment; indicator; inputs; investment; line; making; methods; model; multi; number; order; outputs; publishing; relative; results; returns; scale; score; set; total; unit; university; valuation; value; weights
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        item: #1206 of 1243
          id: ap-951
      author: Olshanetsky, M.
       title: Lectures on Classical Integrable Systems and Gauge Field Theories
        date: 2008-01-02
       words: 18027
      flesch: 81
     summary: Any H C� �( )� defines a Hamiltonian vector field on � � �H dH H Ha ab b� � �� � � � , . F Ga ab b, � �� � � � .
    keywords: 5.2 �; acta; action; arxiv; ay �; b �; basis; bundles; calogero; case; classical; complex; constraints; coordinates; corresponding; curve �; czech; df �; dim �; dimensional; duality; elliptic; equations; false; field; form; g g; g n; gauge; group �; hamiltonian; hecke; higgs; hitchin; holomorphic; house; http://ctn.cvut.cz/ap/; integrable; ix �; j g; j j; j k; j1 �; jk �; k �; lax; lie; map; marked; math; matrices; matrix; mills; modification; moduli; moment; monodromies; moser; motion; n d; n j; n n; n �; orbit; phase; phys; points; poisson; polytechnica; publishing; quotient �; red �; reduced; reduction; respect; section; solutions; space; spectral; stable; structure; subgroup �; symplectic; systems; t n; tc �; technical; theories; theory; tn �; tori �; transformations; true; un �; university; v �; variables; vector; vn1 �; vol; way; words �; xa �; y �; yang; z z; z �; � +; � ad; � cm; � dy; � et; � fl; � g; � h; � j; � l; � nz; � s; � u; � �
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        item: #1207 of 1243
          id: ap-952
      author: Lisník, J.
       title: Valuation of Companies
        date: 2007-01-04
       words: 2098
      flesch: 63
     summary: FCFF EBIT t DEP WC INVt t t t t� � � � � �( )1 � (5) FCFFt – free cash flow to the firm, EBITt – earnings before interest and taxes, t – taxes, DEPt – depreciation, �WCt – change in working capital, INVt – investments. I selected the following six telecommunications operators [1]: � OTE (Greek), � Czech Telecom (CT) (Czech), � Swisscom (Swiss), � Telekom Austria (TA) (Austrian), � Telenor (Norwegian), � TeliaSonera (TS) (Swedish-Finnish).
    keywords: altman; assets; bankruptcy; companies; company; czech; czk; earnings; financial; groups; indicators; market; methods; number; ote; prague; price; score; share; stock; swisscom; telenor; teliasonera; valuation; value; year
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        item: #1208 of 1243
          id: ap-954
      author: Petrucha, V.
       title: An Improved Version of the Fluxgate Compass Module
        date: 2007-01-04
       words: 2738
      flesch: 59
     summary: This differ- ence in sensor excitation coil distribution has a considerable impact on the sensor properties. Three types of sensors are typically used for geomagnetic field sensing.
    keywords: accelerometers; algorithm; axis; azimuth; calibration; case; coil; compass; compensation; current; czech; electronics; error; excitation; field; fig; fluxgate; iteration; linearity; magnetic; magnetometer; module; navigation; new; non; output; pcb; power; sensors; software; system; technical; temperature; total; type; university; value; version; vol
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        item: #1209 of 1243
          id: ap-955
      author: Stolin, A.
       title: 25 Years of Quantum Groups: from Definition to Classification
        date: 2008-01-02
       words: 4236
      flesch: 67
     summary: Set � � �� I I� �, where � �I � is an orthonormal basis of g with respect to the Killing form. Let F satisfy F id F F id F12 23( ) ( )� �� � � .
    keywords: adobe; algebras; baxter; bialgebra; case; classical; classification; conjecture; corresponding; cybe; equation; false; following; groups; hopf; k k; lie; lie bialgebra; limit; math; matrix; p u; poisson; polynomial; quantization; quantum; quasi; rational; solutions; stolin; structures; true; twists; u u; u v; vol; yang
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        item: #1210 of 1243
          id: ap-956
      author: Stojanovic, A.; Unger, M.
       title: Robust Detection of Point Correspondences in Stereo Images
        date: 2007-01-04
       words: 4700
      flesch: 63
     summary: where h l l l l l x l l l 1 1 11 2 21 3 31 2 12 3 13 2 22 1 12 1 2 2 � � � � � � � � � � � � � � � � � �21 3 23 3 32� �l l y , h l l l l l x l l l � � � � � � � � 2 2 1 11 2 21 3 31 2 12 3 13 3 33 1 13 1 � � � � � � � � 31 2 23 2 32� �l l z � � . Using the relations from equation (12) and the constraint that the point is on the line m, we ob- tain the set of equations: x f a y f b y f b z f c ax by cz � � � � � � � � � 1 1 1 1 0 � � � � � � � � . , (13) Expanding equation (13) we have the set of equations a b c x y x y 2 211 12 21 12 21 22 13 � � � � � � � � � � � � � � � � � � � � � � � 31 23 32 1x y h� � � � � � �� � , a b c x y x z 2 11 13 31 12 21 22 32 1 � � � � � � � � � � � � � � � � � � � � � � � 3 31 332 2 � � � � � � � � � x z h , ax by cz� � � 0 .
    keywords: band; correspondences; corresponding; covariance; criterion; distance; epipolar; epipolar line; estimated; fig; fundamental; geometry; hyperbola; image; l l; line; matrix; minimal; new; outlier; point; probability; second; set; university; value
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        item: #1211 of 1243
          id: ap-958
      author: Blanik, N.; Hülsbusch, M.; Herzog, M.; Blazek, C. R.
       title: Assessment of Human Hemodynamics under Hyper- and Microgravity: Results of two Aachen University Parabolic Flight Experiments
        date: 2007-01-04
       words: 1749
      flesch: 60
     summary: 47 No. 4–5/2007 Fig. 7: Different kinetics of blood volume shifts of three sub- jects (measuring points on the forehead using a green (1) and an infrared light source (2), normalized at start of measurement) Fig. 8: Statistical analysis of skin blood volume changes measured with PPG sensors on subjects’ foreheads Acknowledgments To research these dynamic behaviors, the subjects were exposed to a rapid change of gravity (between zero and 1.8 times the normal gravitational force on earth, i.e. 0 g and 1.8 g, respectively) on parabolic flights.
    keywords: blazek; blood; body; earth; fig; flights; flow; fluid; gravitational; gravity; human; intensity; legs; light; lower; microgravity; parabola; parabolic; photoplethysmography; plane; ppg; seconds; sensor; shifts; skin; space; subjects; time; university; volume
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        item: #1212 of 1243
          id: ap-959
      author: Smirnov, F.
       title: Correlation Functions for Lattice Integrable Models
        date: 2008-01-02
       words: 7411
      flesch: 76
     summary: Consider the infinite XXZ spin chain with the Hamiltonian H k k k k k k k XXZ � � � �� � � ��� � �12 1 1 1 1 2 1 2 3 1 3( ( ))� � � � � �� , where � a a( , , )�1 2 3 are Pauli matrices and � � cos ��. I shall consider the case � �1, so, � is real: 0 1� �� . [ , ] ( ) ( ) ,L L m n L n nm n m n m n� � � �� � 1 12 12 � , [ , ] ( ) ( ) ,L L m n L n nm n m n m n� � � �� � 1 12 12 � .
    keywords: adobe; algebra; boos; case; chain; denote; expectation; false; fermion; formula; free; functions; hamiltonian; j j; j k; j �; jimbo; k k; k l; k �; lecture; lenght �; local �; m �; matrix; miwa; model; n n; operators; q q; relation; sin; smirnov; space; spin; takeyama; true; vac; vacuum; vol; w �; xxz; � e; � n; � p)-th; � y; � �
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        item: #1213 of 1243
          id: ap-960
      author: Eros, L.; Bozoki, F.
       title: Refactorisation methods for TTCN-3
        date: 2007-01-04
       words: 3377
      flesch: 65
     summary: 47 No. 4–5/2007 Refactorisation methods for TTCN-3 L. Eros, F. Bozoki In this paper we introduce automatic methods for restructuring source codes written in test description languages. The goal of our refactorisation methods is to increase the maintainability of source codes.
    keywords: action; algorithm; cefsm; code; data; definitions; equal; fig; graph; instructions; lists; model; module; node; redundancy; refactoring; refactorisation; repetitions; repetitive; sequences; source; states; structure; templates; test; trees; ttcn-3; type; value
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        item: #1214 of 1243
          id: ap-961
      author: Sitarz, A.
       title: 31Lectures on Noncommutative Geometry
        date: 2008-01-02
       words: 20476
      flesch: 69
     summary: �� � � denotes the usual coor- dinates on the torus. Example 2.9: Take U, V to be the following unitary operators on the Hilbert space with basis { }, ,em n m n��: U e em n m n, ,� 1 , V e e em n i m m n, ,� � 2 1 � � , m n, � �, where � � � .
    keywords: 2/2008; acta; action; algebra; algebraic; basis; bundle; calculus; case; circle; classes; classical; cocycle; cohomology; commutators; compact; complex; connection; connes; construction; continuous; cos; course; curvature; cyclic; czech; definition; dga; differential; differential algebra; dimension; dirac; e �; elements; example; exercise; f f; f n; fact; false; field; finite; following; forms; free; functions; gauge; geometry; gh �; good; graded; hilbert; house; http://ctn.cvut.cz/ap/; ideal; ii �; instance; j2 �; k �; left; leibniz; linear; manifold; map; mathematical; matrix; means; model; module; morphism �; n k; n m; n n; need; noncommutative; noncommutative geometry; notion; number �; operator; order; pairing; physics; points; polytechnica; product; projective; proof; publishing; quantum; representation; rham; rule; s �; set; sin; smooth; space; spectral; standard; t �; technical; tensor; theorem; theory; topological; topology; torus; trace; triple; true; u u; universal; university; vector; vol; vui �; way; work; � -independent; � b; � f; � ker; � p; � xi; � �
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        item: #1215 of 1243
          id: ap-962
      author: Havlíček, L.
       title: Extending the Life Time of a Nuclear Power Plant: Impact on Nuclear Liabilities in the Czech Republic
        date: 2007-01-04
       words: 4044
      flesch: 48
     summary: Unlike the disposal and decommissioning liability there is no obvious relation between NPP life time (waste volume produced) and liability. This paper deals with the impact of NPP life time extension (alternatively NPP power up-rate or construction of a new NPP) on individual nuclear liabilities in the conditions of the Czech Republic.
    keywords: additional; basic; changes; costs; current; czech; decommissioning; disposal; dukovany; estimate; extension; fuel; funds; future; impact; liabilities; liability; life; life time; new; npp; npp operator; nuclear; operation; operator; options; rate; repository; republic; state; storage; technology; time; waste; years
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        item: #1216 of 1243
          id: ap-964
      author: Lucki, M.
       title: Negative Chromatic Dispersion Generated by Introducing Curvature into Photonic Crystal Fiber
        date: 2007-01-04
       words: 4134
      flesch: 59
     summary: To simplify the definition, we decompose the supermodes into elementary modes (or inversely) in a cross-section as: � � �I I Ib b� �1 1 2 2, (5) � � �II II IIb b� �1 1 2 2. The sensitivity of minimum negative CD to deviations of the curvature radius or with respect to the normalized hole diameter During the fabrication process, the predicted values of the hole diameter or the curvature radius could have some devia- tions from the theoretical predictions.
    keywords: bending; bent; chromatic; cladding; core; coupling; curvature; deviation; diameter; dispersion; dual; effective; fiber; fig; fundamental; hole; index; losses; minimum; mode; negative; negative cd; optical; orientation; pcf; peak; photonic; plane; positive; radius; supermodes; value; vol; wavelength; � �
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        item: #1217 of 1243
          id: ap-965
      author: Toppan, F.
       title: Extended Supersymmetries in One Dimension
        date: 2008-01-02
       words: 16264
      flesch: 67
     summary: i i i� � � � � � � � � �5 1 1 2 3 3 4 4 2 6� � � � � (9.69) ii) i � � � � � � � � � � � � � 4 2 1 4 5 5 2 8 3 1 1 4 3 3 � � � � � � � � � � � � � � � � � � � � � � � � � � 4 2 5 5 8 4 1 2 3 3 4 4 2 6 � � � � � � � � i i
    keywords: 2/2008; acta; action; algebras; bosonic; c(0; case; classification; clifford; connectivity �; constant �; construction; content; czech; d �; derivative �; dimensional; dimensionality; dressed; dressing; entries; extended; false; fermionic; fields; following; gamma; general; house; http://ctn.cvut.cz/ap/; ii �; ijk; invariant; irreducible; irreps; k �; length; length-4; lines; matrices; matrix; maximal; mechanics; mod; multiplet; n n; n �; non; nrr �; number; octonionic; operators; phys; polytechnica; publishing; q n; q q; quantum; representations; results; s �; section; set; shell; space; spin; supergravity; supersymmetry; technical; terms; theories; theory; time; total; transformations; true; type; university; vol; weyl; � dt; � fusion; � g; � ijklmnp; � j; � y; � �
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        item: #1218 of 1243
          id: ap-966
      author: Szabados, R.; Sipos, K.
       title: Developing E-learning Courses for Mobile Devices
        date: 2007-01-04
       words: 6070
      flesch: 60
     summary: Probably the most important problem is adequate adaptation of video files to the given platform. Due to the large number of different video codecs, there are numerous ways for video adaptation.
    keywords: adaptation; available; bandwidth; capacity; case; cms; code; coding; content; course; devices; different; display; enhancement; file; html; internet; learning; learning package; lecturer; lms; method; mobile; moodle; multimedia; new; original; package; pages; pdas; picture; platform; playback; profile; program; quality; resolution; scalability; scalable; scorm; screen; server; size; small; software; storage; stream; structure; system; technical; text; university; user; video; way
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        item: #1219 of 1243
          id: ap-968
      author: Švec, P.; Jandák, V.
       title: The Influence of PZT Actuators Positioning in Active Structural Acoustic Control
        date: 2007-01-04
       words: 2364
      flesch: 62
     summary: xi i j t k j t � � � � � � � � 4 2 2� � � � � � � �( ) ( ) ( ) x y x y x yd d � � � � , (1) where k is the wave number vector magnitude, kx, ky are its components in the x and y directions, �0 and c0 are air density and phase speed of sound respectively, Vz is the 2D k-space Fourier transform of the normal velocity of the vibrating surface, and � ( ) means the real part of its argument.
    keywords: active; actuator; antinode; asac; control; czech; effect; fig; force; mass; moment; pattern; piezoelectric; plate; position; power; radiated; radiation; secondary; sound; stripe; structural; system; technical; university; vibration; � �
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        item: #1220 of 1243
          id: ap-970
      author: Tauchmanová, J.
       title: Computer Controlled Switching Device for Deep Brain Stimulation
        date: 2007-01-04
       words: 1852
      flesch: 60
     summary: Keywords: Deep brain stimulation, hemodynamic response, functional magnetic resonance, identification. The practical part deals with the design of a computer controlled switching device for an external stimulator for deep brain stimulation.
    keywords: brain; computer; control; czech; data; deep; device; fig; fmri; functional; hemodynamic; identification; investigation; localization; magnetic; model; patient; resonance; response; second; signals; stimulation; switching; symptoms; system; time; toolbox
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        item: #1221 of 1243
          id: ap-971
      author: Pošta, P.
       title: Communication between a Matrix Converter Modulator and a Superset Regulator
        date: 2008-01-03
       words: 1805
      flesch: 64
     summary: Keywords: matrix converter, FPGA, VHDL, power electronics. Fig. 1: Matrix converter 3×3 4 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. The processes of four-step switching driven by input voltage are insinuated in tables Table 1.
    keywords: adc; algorithm; bus; communication; converter; desk; fig; fpga; input; matrix; measured; modulator; output; program; read; regulator; superset; switching; technical; testing; university; values; voltage
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        item: #1222 of 1243
          id: ap-972
      author: Dietrich, P.
       title: Modeling Measurement Uncertainty in Room Acoustics
        date: 2007-01-04
       words: 2875
      flesch: 52
     summary: Keywords: Room acoustics, measurement uncertainty, GUM, ISO 3382, uncertainty modeling. The main influence factors and their relevance regarding measurement uncertainty have been analyzed and determined.
    keywords: acoustic; budget; clarity; contributions; different; dodecahedron; experiments; factors; fig; frequency; gum; impulse; index; input; iso; loudspeaker; measurement; modeling; output; parameters; position; quantities; quantity; response; results; room; seat; source; standard; technical; time; type; uncertainties; uncertainty; vol
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        item: #1223 of 1243
          id: ap-973
      author: Aboelhassan, M.
       title: A Proportional Integral Derivative (PID) Feedback Control without a Subsidiary Speed Loop
        date: 2008-01-03
       words: 1850
      flesch: 58
     summary: 48 No. 3/2008 Fig. 2: Block diagram of the PID-controller without the subsidiary speed loop Fig. 3: Block diagram of the PD-controller without the subsidiary speed loop Fig. 4: Block diagrams: proportional control term 3.3 Parallel PID Controllers The family of PID controllers is constructed from various combinations of the proportional, integral and derivative terms as required to meet specific performance requirements. Other modifications that are introduced into the textbook form of PID control include those used to deal with so-called kick behavior, which arises because the textbook PID controller operates directly on the reference error signal.
    keywords: bldc; block; circle; controller; current; czech; derivative; diagram; domain; drives; error; feedback; fig; gain; loop; motors; pid; position; proportional; rotor; signal; speed; speed loop; state; subsidiary
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        item: #1224 of 1243
          id: ap-974
      author: Aleksandrowicz, A.; Leonhardt, S.
       title: Wireless and Non-contact ECG Measurement System – the “Aachen SmartChair”
        date: 2007-01-04
       words: 2683
      flesch: 58
     summary: [4] introduced a so-called “driven-ground- -plane” circuit for non-contacting ECG measurements which was also implemented in the application presented here. Either an ICU patient monitor can be con- nected via D/A-conversion and magnitude adjustment, allowing standard ECG clamp leads to be applied, or a simple wired serial interface to a PC can be realized.
    keywords: aachen; amplifier; application; body; capacitive; chair; circuit; common; conductive; contact; coupling; data; driven; ecg; electrodes; fig; ground; input; insulated; kim; measurement; mode; monitor; patient; result; signal; skin; subject; surface; system; thickness; university; vol
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        item: #1225 of 1243
          id: ap-976
      author: Novák, A.
       title: Identification of Nonlinear Systems: Volterra Series Simplification
        date: 2007-01-04
       words: 2258
      flesch: 68
     summary: x t x t1 2 2 1 2 1 1 2 2 1 2( ), ( ) ( , ) ( ) ( )� � � �� � � � � � � � � �d d � � � . [ ( )]� �Hn (1) in which Hn[ ( )] ( , , ) ( ) ( )x t h x t x tn n n n� � � �� � �� � �� � � �� � � � � �1 1 1d d� ( 2) represents n-dimensional convolution of the input signal x(t) and n-dimensional Volterra kernel hn(�1,..., �n).
    keywords: fig; input; kernel; linear; model; nonlinear; operator; order; output; response; second; system; volterra
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        item: #1226 of 1243
          id: ap-977
      author: Čapek, R.
       title: Visualization and Simulation in Scheduling
        date: 2008-01-03
       words: 2236
      flesch: 55
     summary: Two areas of usage are considered: sim- ulation for monitoring the influence of scheduling on the system function (e.g. for digital filters), and time visualization (e.g. graphic represPentation of execution on a production line in time). On the other hand, Matlab includes the Virtual Reality toolbox, which is also a sufficient tool for visualization of scheduling results.
    keywords: application; block; chart; control; digital; environment; fig; function; gantt; hoist; input; matlab; output; problem; production; reality; representation; results; schedule; scheduling; scheme; simulation; simulink; system; tasks; time; toolbox; torsche; virtual; visis; visualization
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        item: #1227 of 1243
          id: ap-978
      author: Tomek, J.
       title: Inductive Contactless Distance Measurement Intended for a Gastric Electrical Implant
        date: 2007-01-04
       words: 2789
      flesch: 57
     summary: 2 Methods The basic of distance measurement solutions using the mutual induction principle is to have just two single axial probes, one transmitter and one receiver. Magnetic measurements are unfortunately directionally dependent, so only the use of multi-axial probes and trans- mitters can ensure precise position evaluation.
    keywords: axial; certain; chen; coils; czech; dipole; distance; electronics; errors; fig; gastric; induction; low; magnetic; measurements; need; orientation; position; possible; power; probes; receiver; sensing; sensor; simple; stimulation; stomach; system; tracking; transmitter; use; vector; vol; wall
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        item: #1228 of 1243
          id: ap-980
      author: Schotsch, B.; Vary, P.; Clevorn, T.
       title: Analysis of Mismatched First Order A Priori Information in Iterative Source-Channel Decoding
        date: 2007-01-04
       words: 4640
      flesch: 57
     summary: � �T R � 0 9 0 9 , the decoding trajectory reaches the intersection of the LDPC EXIT characteristic and the SOAK1(� � 0 9. ) � �T R � 0 9 0 9 decoding trajec- tory fall short of the SOAK1(� � 0 9. )
    keywords: assignments; autocorrelation; bit; case; channel; characteristic; charts; codes; correlation; decoder; decoding; design; exit; extrinsic; fig; frame; high; index; information; iscd; iterative; knowledge; ldpc; level; order; paper; parameter; performance; priori; quantizer; r �; receiver; redundancy; residual; results; sdsd; short; snr; soak1; source; systems; turbo; u u; values; � �
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        item: #1229 of 1243
          id: ap-981
      author: Gross, S.; Stehle, T.
       title: RealTimeFrame – A Real Time Processing Framework for Medical Video Sequences
        date: 2008-01-03
       words: 3622
      flesch: 55
     summary: Chapter two lists the requirements for a real time software framework for medical image data processing. Keywords: Medical image processing, software framework, real time image processing, multithreading.
    keywords: acquisition; algorithms; buffer; chain; chapter; clinical; code; computer; control; controller; data; development; display; fig; files; framework; functionality; grabber; graphical; gui; hardware; image; image processing; imaging; information; interface; libraries; library; main; medical; medical image; model; modules; new; performance; platform; processing; program; realtimeframe; results; software; source; system; thread; university; user; video; view; vol
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        item: #1230 of 1243
          id: ap-982
      author: Schneider, T. E.
       title: Automated Classification of Analysis- and Reference Cells for Cancer Diagnostics in Microscopic Images of Epithelial Cells from the Oral Mucosa
        date: 2007-01-04
       words: 3607
      flesch: 52
     summary: classifiers analysis cells reference cells overall rate kNN 92.4 98.5 95.5 F-kNN 93.9 97.5 95.7 SVM 2 92.9 98.5 95.7 SVM203 93.9 97.0 It can be seen that chromatin features provide a good separability perfor- mance, whereas only the geometrical features within the basic set morphology do not distinguish the two classes sufficiently.
    keywords: analysis; basic; best; cancer; cells; chromatin; classification; classifiers; different; distribution; dna; epithelial; extinction; feature; fig; fuzzy; green; image; knn; method; mucosa; nearest; nuclei; number; objective; oral; overall; rate; reference; results; selection; set; sets; specimens; svm2; table; training; university; validation; vol
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        item: #1231 of 1243
          id: ap-984
      author: Luecken, H.; Tech, G.; Schwann, R.; Kappen, G.
       title: Stick Based Speckle Reduction for Real-Time Processing of OCT Images on an FPGA
        date: 2007-01-04
       words: 3530
      flesch: 60
     summary: Currently, resolutions down to a few micrometers are possible, allowing OCT images to compete with histological examina- tion of tissue. Additionally, post-processing algorithms (such as deconvolution or segmentation) that are used to enhance image resolution and quality may suffer from the presence of speckle in OCT images.
    keywords: algorithm; aluts; asf; block; coherence; cycles; data; different; digital; direction; fig; filter; fpga; frequency; high; image; implementation; interference; length; light; like; number; oct; optical; pattern; pixels; post; probe; processing; rate; real; reduction; reference; required; resolution; scan; section; serial; signal; size; speckle; stick; system; time; ultrasonic; university; value; vol; window
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        item: #1232 of 1243
          id: ap-985
      author: Adamec, M.; Indráková, M.; Karajica, M.
       title: The European Electricity Market and Cross-Border Transmission
        date: 2008-01-03
       words: 3360
      flesch: 55
     summary: Due to the impossibility of storing electric power, its price is highly volatile on spot markets (Fig. 1.), and this forces in- vestors to use some form of hedging (risk management). 2.1 Ways of trading in electricity There are two main markets, in which electric power is traded.
    keywords: 3/2008; access; acta; auction; border; capacities; capacity; countries; cross; czech; dealing; electric; electric power; electricity; energy; etso; europe; european; exchange; fig; france; free; germany; house; http://ctn.cvut.cz/ap/; liquidity; market; method; necessary; polytechnica; power; price; publishing; rtpa; system; technical; total; trade; trading; transmission; twh; university; vol
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        item: #1233 of 1243
          id: ap-986
      author: Mgaya, E. V.; Müller, Z.
       title: The Impact of Connecting Distributed Generation to the Distribution System
        date: 2007-01-04
       words: 3306
      flesch: 54
     summary: The disturbances are categorized according to the frequency (power systems, acoustic, radio). This paper will draw attention to the impacts of connecting wind power plants to the existing system.
    keywords: case; changes; circuit; compensation; connected; connection; control; current; czech; devices; distribution; electrical; energy; factor; fig; flicker; frequency; generators; harmonic; higher; level; line; load; losses; mva; network; pcc; plant; power; reactive; renewable; short; sources; study; system; technical; university; voltage; wind; wind power
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        item: #1234 of 1243
          id: ap-988
      author: Vancl, J.
       title: Improved Evaluation of Planar Calibration Standards Using the TDR Preselection Method
        date: 2007-01-04
       words: 2544
      flesch: 48
     summary: [1] and statistical processing of mea- sured data of an over-determined set of calibration standards [2]-[5]. Another improved calibration procedure optimizes parameterized models of calibration standards to minimize nonreciprocity in a known asymmetrical reciprocal two-port device [6].
    keywords: accuracy; best; calibration; calibration standards; coefficient; combination; czech; data; error; feeding; fig; impedance; line; load; measured; measurement; method; open; parameters; preselection; procedure; reflection; response; shifted; short; standards; substrate; tdr; test; time; university; vna; vol
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        item: #1235 of 1243
          id: ap-989
      author: Čundev, D.
       title: Analysis of the Fuel Efficiency of a Hybrid Electric Drive with an Electric Power Splitter
        date: 2008-01-03
       words: 2279
      flesch: 58
     summary: When simulating a of power drive system, is essential to calculate precisely the efficiency of each component where there is energy transformation. 7 Conclusions The results show the main specifications of this new concept of hybrid electric drive according to the European driving schedule.
    keywords: calculated; capacitor; car; consumption; drive; driving; eds; efficiency; electric; energy; engine; eps; fig; fuel; hev; hybrid; ice; main; power; prague; regime; results; schedule; stand; super; technical; time; traction; urban; vehicle; working
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        item: #1236 of 1243
          id: ap-990
      author: Rajnoha, J.
       title: Speaker Non-speech Event Recognition with Standard Speech Datasets
        date: 2007-01-04
       words: 4219
      flesch: 61
     summary: In the non-speech event modelling task this calls for a sufficient number of non-speech events present in the database, which is the way to get a general description of the modelled event. To increase the number of non-speech events present in the training set of speech data, one other dataset was used.
    keywords: age; alignment; analysed; bre; classes; czech; database; dataset; different; distribution; environment; error; events; fig; forced; influence; information; items; marked; marks; models; noise; non; number; occurrence; original; phase; rate; recogniser; recognition; records; results; shows; speaker; speaker non; speech; speech events; spk; subsequent; subset; table; tem; training; transcription; university; word; work
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        item: #1237 of 1243
          id: ap-991
      author: Havlíček, L.
       title: Nuclear Fuel Cycle Evaluation and Real Options
        date: 2008-01-03
       words: 3874
      flesch: 55
     summary: Keywords: Nuclear fuel cycle, front-end, back-end, economic evaluation, evaluation methods, NPV, uncertainty, flexibility, real options. cient only for a few years of operation. The most widely-used options are: � Option to wait or to defer a project � Option to expand or to contract a project � Option to abandon a project � Option to stage � Option to shutdown and restart � Option to switch 5 Applicability of the real option concept in nuclear fuel cycle 5.1 Applicability in the Front-End If an operator buys nuclear materials and services to be delivered just in time for the next stage of the processing chain, there is no room for flexibility.
    keywords: basic; core; costs; cycle; czech; decision; degree; economic; end; evaluation; flexibility; fresh; fuel; fuel cycle; future; long; npp; npv; nuclear; nuclear fuel; open; operation; operator; optimization; option; parameters; plant; power; price; procurement; radioactive; rate; reactivity; reactor; real; storage; technical; term; time; uncertainty; uranium; use; value; volatility; waste; year
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        item: #1238 of 1243
          id: ap-992
      author: Matz, V.; Kreidl, M.; Šmíd, R.
       title: Signal Separation in Ultrasonic Non-Destructive Testing
        date: 2007-01-06
       words: 4368
      flesch: 60
     summary: It can be calculated by T k N k k( ) ( ) ( )� � � � 2 1 � � � , (3) where �(k) is the phase component of the discrete Fourier transform, k is the frequency index and N is the total number of points. In the past, many methods have been evaluated [2–5, 11] for efficient noise reduction in ultrasonic signals.
    keywords: algorithms; amplitude; analysis; blind; case; coefficients; czech; delay; discrete; dwt; echo; efficient; evaluation; fault; fig; filter; frequency; group; level; material; methods; mother; noise; noising; reduction; results; separation; signal; snre; source; structure; t t; technical; thresholding; transform; ultrasonic; university; vol; wavelet; wiener
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        item: #1239 of 1243
          id: ap-994
      author: Xanthos, S.; Gong, M.; Andreopoulos, Y.
       title: Design and Validation of a Probe for Spatially and Temporally Resolved Measurements of Vorticity and Strain Rates in Compressible Turbulence Interactions
        date: 2007-01-06
       words: 4969
      flesch: 59
     summary: If the uncertain- ties in the measurements of U2 and U1 are the same, � � �U U U1 2 3� � , and lp is determined accurately, then the relative uncertainty � F F will be given by: � �F F U U U � � � � � � � � � � �� � � � �� 2 2 1 2 1 2 . These expressions can be written as: � U x U U t U U x U U x p x 1 1 1 1 2 1 2 3 1 3 1 1 1 � � � � � � � � � � , U x U U t U U x U U x p x U 2 1 1 2 2 2 2 3 2 3 2 1 1 � � � � � � � � � � � , 3 1 1 3 2 3 2 3 3 3 3 1 1 � x U U t U U x U U x p x � � � � � � � � � � .
    keywords: acta; agui; andreopoulos; boundary; briassulis; components; compressible; data; error; expansion; facility; field; fig; flow; fluid; gradients; grid; hot; interactions; locations; mass; mean; measurements; new; polytechnica; present; pressure; probe; rate; relative; resolution; section; shock; spatial; temperature; temporal; terms; time; total; tube; turbulence; u u; uncertainty; university; velocity; vol; vorticity; wall; waves; wire
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        item: #1240 of 1243
          id: ap-995
      author: Kněžek, M.
       title: Power Producer Production Valuation
        date: 2008-01-03
       words: 2081
      flesch: 55
     summary: GM CHP GM CHP qS pS qG pG qP td td td td td td td td t _ _� � � � � � � � �� � d td td pP�� � , (2) where �pStd is the weighted value of the sales prices [Kč], �pGtd is the weighted value of the production prices [Kč], and �pPtd is the weighted value of the purchased prices [Kč]. GM CFP GM CFP qS pS qPG pPG qP td td td td td td td td _ _� � � � � � � � ��
    keywords: closed; day; difference; electricity; future; future position; historical; hour; management; market; open; planned; position; prices; production; purchase; risk; sales; td td; trading; value; volume
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        item: #1241 of 1243
          id: ap-996
      author: Brůha, O.; Brůha, T.; Fořt, I.; Jahoda, M.
       title: Dynamics of the Flow Pattern in a Baffled Mixing Vessel with an Axial Impeller
        date: 2007-01-06
       words: 4999
      flesch: 62
     summary: The energy dissipation per unit mass � related to the experimental system used in this study is � � � � �� � �0 0 0 0 0 0 0 P m P m P V P V , ( ) (11) and after substitution V � 0.0192 m3, P0 � 10.3 W, V0 � 0.0109 m3 we obtain � � 1.384 m2 s�3. The kinetic energy of turbulence per unit of mass is q w w wz r� � � � � � � � � � � 1 2 2 2 2 � .
    keywords: 6/2007; acta; agitated; average; axial; baffles; blade; calculated; chemical; circulation; cycle; czech; diameter; dissipation; energy; engineering; experimental; fig; flow; formation; frequency; height; house; http://ctn.cvut.cz/ap/; impeller; liquid; loop; macro; mass; max; mean; pcl; polytechnica; power; primary; process; publishing; rate; region; rotor; stirred; system; technical; time; turbulent; university; value; velocity; vertical; vessel; vol; volume; wall
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        item: #1242 of 1243
          id: ap-998
      author: Ficker, T.
       title: Dimension of Fracture Surfaces
        date: 2007-01-06
       words: 2703
      flesch: 68
     summary: Fortunately, the structure of a porous ma- terial often contains only one type of grain or – at least – one grain type of fractal arrangement (i � 1) dominates over the solid remainder (i � 0), which is usually of a non-fractal character (D D S0 03� � � * ) � � � � � � � � � � � � � � � � � � � � � � � � � 0 1 1 1 0 0 0 1 1l L b s S D k* ( ) exp , ln , *S D A s A L l k � � � � � � � � � � � � � � � � � � � � � � � � 1 0 1 1 1 � � � ( ) .b Since the publication of the basic work by Mandelbrot and his co-workers [1] many authors have tried to correlate the fractal dimensions of fracture surfaces with the mechanical properties of materials.
    keywords: balshin; case; cement; compressive; concr; czech; dimension; exponent; ficker; fractal; fracture; materials; non; paste; patterns; porosity; porous; sample; strength; structure; surface; universal; university; value; vol; volume; � �
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        item: #1243 of 1243
          id: ap-999
      author: Frydryšková, J.
       title: UNRRA and Support for Science
        date: 2008-01-03
       words: 1252
      flesch: 50
     summary: Partici- pation in reconstruction was not a part of UNRRA activities, and there was no long-term cooperation in economic pro- grams and agreements. Scholarship hold- ers, who had been proposed by the government itself, were appointed as UNRRA experts when they returned home.
    keywords: countries; czechoslovakia; economic; experts; history; holders; important; latest; period; prague; program; recovery; rehabilitation; relief; renewal; scholarship; scientific; specialists; supplies; technical; university; unrra; war; world
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