item: #1 of 680 id: hjic-100 author: Tamás, P.; Varga, I.; Szederkényi, G.; Bokor, J. title: Robust Model Predictive Control with State Estimation for an Industrial Pressurizer System date: 2005 words: 4742 flesch: 70 summary: Keywords: process control, robust model predictive control, constrained control Introduction Recently, there has been a growing need for automation of increasingly complex plants in different branches of industry. Approximationof the minimal robustly positively invariant set for discrete-time LTI systems with persistent state disturbances. keywords: control; k k; model; state cache: hjic-100.pdf plain text: hjic-100.txt item: #2 of 680 id: hjic-101 author: Moldoványi, N.; Lakatos, B. G. title: Model Predictive Control of Continuous Crystallizers date: 2005 words: 5323 flesch: 57 summary: For the crystallizer we have two outputs and two inputs, there are three possible pairs of control variables, so three different relative-gain arrays can be formed and computed (The value 0 and 1 are rounded.): (60) wuyu in ==== 6251 , ϑϑ An optimization algorithm will be applied to com- pute a sequence of future control signals that minimizes the cost function. keywords: control; crystallizer; model; system; − −; ⎢ ⎢; ⎥ ⎥ cache: hjic-101.pdf plain text: hjic-101.txt item: #3 of 680 id: hjic-102 author: Hajnal, É.; Kollár, G. title: Optimization of Food Logistic Processes by Simulation Technique date: 2005 words: 4039 flesch: 52 summary: The basis of process simulation is a very detailed process mapping. Continuous time models describe a smooth flow of homogenous values; time changes in equal increments and values change based directly on changes in time. keywords: block; change; event; fig; items; model; optimization; process; processes; simulation; time cache: hjic-102.pdf plain text: hjic-102.txt item: #4 of 680 id: hjic-1020 author: Woinaroschy, A.; Plesu, V.; Woinaroschy, K. title: CLASSIFICATION NEURAL NETWORKS IMPROVEMENT USING GENETIC ALGORITHMS date: 2002 words: 3147 flesch: 56 summary: the bounds imposed to the weights of the inter-neuronal connections, the number of neurons in the hidden layer, fitness expression, etc. Keywords: neural networks, genetic algorithms, classification Introduction An important field of neural network applications in bioprocessing and chemical engineering consists in classification problems, like process fault detection and diagnosis, detection and location of gross errors in experimental data sets, spectral analysis, models discrimination and identification of model parameters, etc. There are several types of neural networks used for classification problems: back-propagation, radial-basis­ function, learning-vector-quantization, probabilistic networks, networks based on adaptive-resonance-theory, and so on. keywords: algorithm; layer; network; neurons; number; output; procedure; seeding cache: hjic-1020.pdf plain text: hjic-1020.txt item: #5 of 680 id: hjic-1021 author: Yassine, T.; Baidoun, R.; Stas, J.; Al-Merey, R. title: PREPARATION OF FEED GRADE DICALCIUM PHOSPHATE FROM COMMERCIAL PHOSPHORIC ACID date: 2002 words: 2803 flesch: 57 summary: Keywords: commercial phosphoric acid, dicalcium phosphate, feed Introduction In addition to their value as fertilizer, phosphate compounds are essential as phosphorus supplement for living. Phosphate rocks contain different levels of harmful contaminants such as fluoride, hazardous trace elements, and radioactive elements, which could be transferred to phosphoric acid produced by wet­ process. keywords: acid; dicalcium; feed; fluoride; phosphate; phosphoric; precipitation; stage; value cache: hjic-1021.pdf plain text: hjic-1021.txt item: #6 of 680 id: hjic-1022 author: Bhutra, M. K.; Vyas, A.; Bhutra, G.L. title: A NOVEL METHOD FOR DETECTION AND ESTIMATION OF COPPER(II) IN WATER date: 2002 words: 1763 flesch: 57 summary: Estimation of copper Standard copper solutions were made from copper sulphate and estimation of Copper (II) was done using atomic absorption spectrophotomerric method (AAS) (6]. If the colour of reagent does not disappear within 5 minutes it indicates that copper concentration is well within permissible limit. keywords: colour; copper; field; test; water cache: hjic-1022.pdf plain text: hjic-1022.txt item: #7 of 680 id: hjic-1023 author: Balgaranova, J. title: THE INFLUENCE OF WATER SOLUBLE VARNISHES ON THE CATALYST DURING ENAMELLING PROCESS date: 2002 words: 1448 flesch: 54 summary: Conclusions The investigation is of interest in view of the possibility of using water soluble enamel varnishes for production of enamel wires. Comparatively few data exist on the influence of these poisons on platinum and other catalysts containing noble metals. keywords: catalyst; enamel; vapour; varnish; water cache: hjic-1023.pdf plain text: hjic-1023.txt item: #8 of 680 id: hjic-1024 author: Haghi, A. K. title: A STUDY OF DRYING PROCESS date: 2002 words: 5141 flesch: 62 summary: To simulate the two stage-sorption process, David and Nordan [10] proposed an exponential function to describe the rate of change of fiber water content, which needed to be adjusted according to the measured fabric moisture content. Two of the equations involve the conservation of mass and energy, and the third relates fiber moisture content with the moisture in the adjacent air. keywords: coefficient; diffusion; drying; fiber; heat; moisture; rate; sorption; temperature; water cache: hjic-1024.pdf plain text: hjic-1024.txt item: #9 of 680 id: hjic-1025 author: Kováts, N.; Szalay, T.; Kiss, I.; Kárpáti, Á.; Paulovits, G. title: ASSESSMENT OF DEGRADABILITY IN WHOLE EFFLUENT TOXICITY TESTING USING BIOLUMINESCENT BACTERIA date: 2002 words: 2870 flesch: 50 summary: 274 Table I Results of toxicity tests made using ToxAlert. where fkt mean of fkt of the two control samples lo luminescence intensity of the control test suspension let corrected value of for test sample cuvettes immediately before the addition of the test sample Then the inhibitory effect lit of the test sample was calculated (Eq.(3)). keywords: assay; effluent; exposure; sample; test; time; toxicity; water cache: hjic-1025.pdf plain text: hjic-1025.txt item: #10 of 680 id: hjic-1026 author: Hamerli, P.; Weigel, T.; Groth, T.; Paul, D.; Marton, G. title: SURFACE PROPERTIES AND TISSUE COMPATIBILITY OF NH3-PLASMA MODIFIED POLYETHYLENTEREPHTALAT MEMBRANES date: 2002 words: 3473 flesch: 56 summary: The improved cell adhesivity of ammonia plasma modified membranes can be explained due to their hydrophilic character and the presence of nitrogen-containing functional groups [24]. Cell proliferation on plasma treated surfaces was almost 125 % of the original membrane after 6 day of cultivation. keywords: amine; cell; concentration; membranes; pet; pet3; plasma; samples; surface; treatment cache: hjic-1026.pdf plain text: hjic-1026.txt item: #11 of 680 id: hjic-1027 author: Blickle, T.; Bezegh, A.; Mihálykó, Cs. title: STOCHASTIC MODEL OF FIRST ORDER CHEMICAL REACTIONS TAKING PLACE IN PARTICLES date: 2002 words: 1620 flesch: 68 summary: Keywords: stochastic model, particle dispersion processes, iron oxide red production, conversion rate, product homogeneity, momentum equation, particulate system Introduction During the years of the '50s, an intensive research was lead by Prof. K. Polinszky, to study the properties of inorganic pigments and their production methods. In steady layer system 7: -t 0 and l = 1; in rotating kiln when e is a given value: l = !. keywords: rate cache: hjic-1027.pdf plain text: hjic-1027.txt item: #12 of 680 id: hjic-1028 author: Sutiman, D. title: THE STABILITY OF THE LOW ALLOY STEELS IN ORGANIC SYSTEMS WITH SUCCINIC AND ADIPIC ACIDS date: 2002 words: 2358 flesch: 64 summary: These show primarily the displacement of the absorption frequency of the group coo- of the two acids from 1700 to 1685 cm·1 for succinic acid and from 1695 to 1680 cm-1 for adipic acid due to a stronger bonding of oxygen. These are situated at 380 and 360 cm-1 in the I.R. spectra of the compound with succinic acid and at 371 and 352 cm'1 in the spectra of the product with adipic acid. keywords: acid; acid acid; adipic; concentration; corrosion; water cache: hjic-1028.pdf plain text: hjic-1028.txt item: #13 of 680 id: hjic-1029 author: Singha, A. S.; Kaith, B. S.; Sarwade, B. D. title: MODIFICATION OF FLAX FIBRE THROUGH GRAFT COPOLYMERIZATION WITH METHYL METHACRYLATE AND EVALUATION OF SWELLING, MOISTURE ABSORBANCE AND THERMAL BEHAVIOUR date: 2002 words: 3078 flesch: 67 summary: CHAUHAN G. S., BHATI S. S., KAUR 1., SINGHA A. S. and KAITHB. Received: October 30, 2002 Flax fibre has been modified through grafting of methyl methacrylate in presence of potassium persulphate and ferrous ammonium sulphate as reaction initiators. keywords: fibre; flax; graft; grafting cache: hjic-1029.pdf plain text: hjic-1029.txt item: #14 of 680 id: hjic-103 author: Madár, J.; Balaskó, B.; Szeifert, F.; Abonyi, J. title: Evolutionary Strategy in Iterative Experiment Design date: 2005 words: 3505 flesch: 52 summary: The obtained model output vs. the ‘true’ solid: system, dashed: Method 2 dotted: Method 3 Conclusions The estimation of model parameters largely depends on the information content of the experimental data presented to the parameter identification algorithm. The goal of the experiment design is to determine an optimal input profile in the sense of the parameter estimation leads to optimal parameters with maximal confidence. keywords: design; estimation; experiment; model; oed; parameters cache: hjic-103.pdf plain text: hjic-103.txt item: #15 of 680 id: hjic-1030 author: Kalaichelvi, P. title: ANALYSIS OF PARAMETERS INFLUENCING THE PROPERTIES AND YIELD OF LUBE-OIL EXTRACTION PRODUCTS date: 2002 words: 1936 flesch: 60 summary: different combinations Tabl~t 1 Extraction resuJts for extraction temperatures of 65 oc and SJ F ratio of 1.4 Feed Mixtures Properties Feed #1 #2 #3 #4 RAFFINATE Yield (Wt %) 80 90 94 70 77 Density, 15 oc 0.9079 0.8856 0.8777 NA NA (gmlml) Pour Point +45 +42 +45 +39 +39 (°C) Kinematic Viscosity (CST) (i) 100 oc 9.35 8.32 8.13 10.22 9.38 (ii) 75 oc 19.31 17.40 15.82 22.33 19.50 Refractive Index, 75 oc 1.48307 1.47081 1.46475 1.49342 1.48471 Wt% Extraction temperatures are fixed based on miscibility temperatures of various combinations of feed mixtures [2,5]. keywords: extraction; feed; solvent; temperature; yield cache: hjic-1030.pdf plain text: hjic-1030.txt item: #16 of 680 id: hjic-1031 author: Hancsók, J.; Magyar, S.; Lengyel, A. title: HYDROTREATING OF FULL RANGE FCC GASOLINE date: 2002 words: 2379 flesch: 54 summary: Three main long-run methods are offered for reducing sulphur content of gasoline, each of which results in lower sulphur content of FCC gasoline: reduction by hydrofining of FCC feed, application of new catalysts and catalyst additives in the FCC unit and desulphurisation of FCC gasoline Nevertheless, desulphurisation of FCC gasoline cannot generally be avoided to meet ultra low sulphur specifications of engine gasoline. keywords: fcc; gasoline; loss; low; number; octane; sulphur; temperature cache: hjic-1031.pdf plain text: hjic-1031.txt item: #17 of 680 id: hjic-1032 author: Holczinger, T.; Romero, J.; Puigjaner, L.; Friedler, F. title: SCHEDULING OF MULTIPURPOSE BATCH PROCESSES WITH MULTIPLE BATCHES OF THE PRODUCTS date: 2002 words: 2379 flesch: 54 summary: Three main long-run methods are offered for reducing sulphur content of gasoline, each of which results in lower sulphur content of FCC gasoline: reduction by hydrofining of FCC feed, application of new catalysts and catalyst additives in the FCC unit and desulphurisation of FCC gasoline Nevertheless, desulphurisation of FCC gasoline cannot generally be avoided to meet ultra low sulphur specifications of engine gasoline. keywords: fcc; gasoline; loss; low; number; octane; sulphur; temperature cache: hjic-1032.pdf plain text: hjic-1032.txt item: #18 of 680 id: hjic-1033 author: Mohamed, A. I.; Xian, S. B.; Qing, C. title: A DESIGN FOR PHOTOCHEMICAL DESULFURIZATION AND SOLVENT EXTRACTION FOR LIGHT OIL date: 2002 words: 3054 flesch: 54 summary: After extraction with acetonitrile the sulfur content in gasoline decreased from 316 ppm to 47.7 ppm, and that in light gas oil from 988 ppm to 101.2 ppm or with 84.9 and 89.75 %, respectively. The present invention relates to a method of a design suggested for a desulfurization of light oils through organic two phase liquid-liquid extraction, photochemical oxidation and photodecomposition of the sulfur compounds, using a high pressure mercury lamp. keywords: acetonitrile; extraction; gas; gasoline; light; oil; solvent; sulfur cache: hjic-1033.pdf plain text: hjic-1033.txt item: #19 of 680 id: hjic-1034 author: Baldea, M. ; Cristea, V. M.; Agachi, P. S. title: A FUZZY LOGIC APPROACH TO THE CONTROL OF THE DRYING PROCESS date: 2002 words: 1961 flesch: 54 summary: The behaviour of three investigated control methods (Fuzzy Logic Control- FLC, Model Predictive Control-MPC and PID control) is presented comparatively. For the ramp sections, as in Fig.8 (detail B on Fig.4), the MPC and PID control proved to be less accurate than FL showing a larger offset. keywords: air; control; drying; mpc; product; temperature cache: hjic-1034.pdf plain text: hjic-1034.txt item: #20 of 680 id: hjic-1035 author: Saboni, A.; Alexandrova, S.; Assenov, A. title: DIRECT CALCULATION OF SULFUR DIOXIDE ABSORPTION BY WATER DROPS date: 2002 words: 3426 flesch: 62 summary: Fig.4 shows the time evolution of the specified gaussian distribution of sulfur dioxide concentration as a population of drops faits the plume pollution with an initial peak profile concentration of 500 ppb (v). Mass transfer between gas phase and water drops depends on the physical and chemical properties of the diffusing gas, the drop size and the hydrodynamics around and inside the moving drops. keywords: concentration; dioxide; drop; gas; model; sulfur cache: hjic-1035.pdf plain text: hjic-1035.txt item: #21 of 680 id: hjic-1036 author: Hancsók, J.; Varga, Z. title: INVESTIGATION OF THE PRODUCTION OF GAS OIL OF LOW AROMATIC CONTENT date: 2002 words: 2464 flesch: 60 summary: The properties of the feedstock and products were determined by standard test methods: sulphur content by X-ray fluorescence spectrometry, aromatic content by HPLC. Studying the effect of temperature on the reduction of aromatic content in case of LHSV o~s and 0.8 b1 , Table 4 Summary of the results of the advantageous experiments Properties Experiment AM/I AM/2 AM/3 AM/4 Process conditions Temperature, oc 280 280 300 300 Pressure, bar 40 40 40 40 LHSV,h'1 0.5 0.8 1.2 2.0 H2/HC, dm3 /dm3 600 600 600 600 Yield,% 99.6 99.7 99.5 99.6 Product quality Density, kg/m3 810 811 811 813 Sulphur content, <2 ppm <2 <2 <2 Aromatics, % mono 0.5 1.6 2.9 3.6 di 0.08 0.09 0.1 0.4 poly 0.05 O.D7 0.08 0.09 keywords: aromatic; content; diesel; fuels; gas; oil; products; quality cache: hjic-1036.pdf plain text: hjic-1036.txt item: #22 of 680 id: hjic-1037 author: Abilov, A. G.; Tuzunalp, O.; Telatar, Z.; Ilk, H. G. title: EQUIVALENT SYSTEM METHOD APPLIED TO MULTIVARIABLE CASCADE CONTROL OF INDUSTRIAL TUBULAR FURNACE date: 2002 words: 2550 flesch: 53 summary: In this system, because the transfer function of the equivalent channels is symmetric, it is identified as, Equivalent multivariable cascade control system A block diagram of the multi variable cascade control of the equivalent system is shown in Fig.5. Finally, experimental tests of the control of temperature in industrial furnace plant using multivariable cascade equivalent control system has also verified the conclusion that equivalent system technique has considerable control performance. keywords: cascade; control; function; furnace; system; transfer; transfer function cache: hjic-1037.pdf plain text: hjic-1037.txt item: #23 of 680 id: hjic-1038 author: Sutiman, D. title: THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL – ETHYLENE GLYCOL – MALONIC ACID date: 2002 words: 1930 flesch: 67 summary: The behaviour of three type of steel, with a variable carbon concentration (from 0.20 to 0.40 %) is studied in medium of methanol - 10 % ethylene glycol - 5 % malonic acid with water concentration varying between 1 % to 5 %. This paper continues the study about the influence of water concentration over steels with different carbon concentration. keywords: acid; concentration; corrosion; system; water cache: hjic-1038.pdf plain text: hjic-1038.txt item: #24 of 680 id: hjic-1039 author: Renganathan, T.; Krishnaiah, K. title: MATHEMATICAL EQUIVALENCE OF INFINITE MIXED FLOW REACTORS IN SERIES AND PLUG FLOW REACTOR date: 2002 words: 836 flesch: 66 summary: Keywords: chemical reactors, mixed flow reactor, plug flow reactor, residence time distribution, convergence Introduction The basic concept, that infinite mixed flow reactors (MFR) in series give the same performance as a plug flow reactor (PFR) is well known in chemical engineering for many years. Proof of Equivalence A series of mixed flow reactors (MFRs) with delta input are shown in Fig.l. keywords: flow cache: hjic-1039.pdf plain text: hjic-1039.txt item: #25 of 680 id: hjic-104 author: Herrmann, N.; Karnjanatawee, V. title: Neumann Boundary Value Problems with BEM and Collocation date: 2005 words: 3315 flesch: 68 summary: The quantities ξ ′∂ ∂ n Ei 1 with ( ) ( ) ( ) ⎪ ⎪ ⎩ ⎪⎪ ⎨ ⎧ ≤ > −=′ − −′− τ τ τπτξ τ ξ 1 1 4 11 if0 if 4 1 1 2 t te tt,x;, t x i i E are ( ) ( ) ( )τξ ξ ξ τπξ − −′ −′ ′ ′ − ⋅−′ −=⋅ ′∂ ∂ = ∂ ∂ 1 2 4 2 1 11 8 tiii i e t E n E xξnxξ n . Ω∂ ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ ∂ ∂ − ∂ ∂ += ξ ξ σξ ξξ ξ du n ,xE n u ,xE xu xu 0 0 0 0 2 (7) Ω∂∈∀ 0x keywords: ⎢ ⎢; ⎥ ⎥ cache: hjic-104.pdf plain text: hjic-104.txt item: #26 of 680 id: hjic-1040 author: Galaction, A. I. ; Cascaval, D. title: COMPARATIVE STUDY AND MODELLING OF RUTIN EXTRACTION FROM HYPERICI HERBA AND HIPPOPHAES FRUCTUS date: 2002 words: 3169 flesch: 56 summary: The study on Rutin extraction from autochthonous Hyperici herba andHippophaesfructus with methanol, ethanol and!­ propanol at different concentrations, temperatures and duration indicated that the most efficient solvent is ! For both extraction systems, the considered variables control the extraction process in a 99.2-99.5% extent, the solvent concentration exhibiting the most imp01tant influence, especially for Rutin extraction from Hippophaes fructus. keywords: extraction; fructus; herba; hyperici; rutin; rutin extraction; solvent cache: hjic-1040.pdf plain text: hjic-1040.txt item: #27 of 680 id: hjic-1041 author: Vaklieva-Bancheva, N. G. ; Shopova, E. G. ; Ivanov, B. B. title: APPLICATION OF FOURIER TRANSFORMATION FOR WASTE MINIMIZATION IN BATCH PLANTS. 1. ANALYSIS OF PRODUCTION RECIPES date: 2002 words: 5015 flesch: 62 summary: Environmental impact indices. The operational mode affects the level and distribution of environmental impact into the production cycle, which is very important for -environmentally efficient control of batch processes. keywords: bod; content; curd; environmental; impact; milk; product; production; time; waste cache: hjic-1041.pdf plain text: hjic-1041.txt item: #28 of 680 id: hjic-1042 author: Veli, S. title: ALKYLATION OF BIPHENYL WITH 1-HEXEN BY USING A CATALYST date: 2002 words: 1821 flesch: 49 summary: As shown in Fig.4, biphenyl conversion and monohexyl biphenyl concentration in alkylat increases as the reaction time increases, while di~ and polyhexyl biphenyl concentrations decrease. It was observed that the conversion of biphenyl increases with temperature. keywords: alkylation; biphenyl; catalyst; hexen; reaction cache: hjic-1042.pdf plain text: hjic-1042.txt item: #29 of 680 id: hjic-1043 author: Tekić, M. N.; Zavargó, Z.; Krstić, D.; Djurić, M. title: MATHEMATICAL MODEL OF VARIABLE VOLUME DIAFILTRATION date: 2002 words: 1500 flesch: 56 summary: Variable volume diafiltration is a continuous process in which water is continuously added at a rate Jess than the permeate flow rate so that the concentration of macrosolute continuously increases, and the final concentrations of macrosolute and microsolute can be reached simultaneously. 0.=0.7 ~---- Fig.2 Processing time vs. macrosolute relative concentration 120 +-~.-~--.-~-r--,--~-~-~~ 900 800 700 600 :s 500 .s - 400 300 200 100 0.0 ~ Q2 Q3 Q4 0~ Q6 OJ Q8 0.9 Fig.3 Processing time vs. retentate dilution Fig.3 shows how processing time depends on the ratio of the dilution flow rate to the permeate flow rate, a, at different retention. keywords: concentration; diafiltration; time; volume cache: hjic-1043.pdf plain text: hjic-1043.txt item: #30 of 680 id: hjic-1044 author: Storey, C. title: TIME SERIES AND THE ALGEBRAIC MATRIX RICCATI EQUATION date: 2002 words: 1684 flesch: 75 summary: Keywords: autoregressive time series, Yule-Walker equations, algebraic matrix Riccati equations, total least squares Introduction Determination of the autoregressive parameters ai,i = O,l,···,n, (1) in the stochastic process (2) where (3) i=o is investigated. Two different sets of parameter values are given for each of two different suggested models: Modell Tent: y(t) -1.32y(t -1) + 0.63y(t- 2) = w(t) , Final: y(t) -1.42y(t keywords: equations; final; numerical; series cache: hjic-1044.pdf plain text: hjic-1044.txt item: #31 of 680 id: hjic-1045 author: Rajković, M. B.; Tošković, D. title: A NEW PROCEDURE OF PHOSPHOGYPSUM PURIFICATION IN ORDER TO DIMINISH THE CONTENT OF RADIONUCLIDES date: 2002 words: 4860 flesch: 53 summary: Phosphogypsum and natural gypsum samples were analysed using scanning electron microscopy SEM, JSM-840A, JEOL, Japan. The obtained results of radionuclide content analysis in raw phosphogypsum are in accordance with literature data obtained by investigation of 2~a isotope contents in various types of phosphogypsum, which range from 430 to 790 Bq/kg. keywords: acid; analysis; phosphogypsum; phosphoric; procedure; process; production; radionuclides; sulphate; uranium; wt.% cache: hjic-1045.pdf plain text: hjic-1045.txt item: #32 of 680 id: hjic-1046 author: Kápolna, B.; Szabó, R.; Viczián, G.; Kollár, G. title: INTERNET BASED SURVEY AS I/O SUPPORT IN PROCESS APPROACHED QMS OF FOOD/AGRO INDUSTRIES date: 2002 words: 3475 flesch: 65 summary: In one of our earlier papers [4] we discussed Internet vs. paper-based replies to questionnaires surveying the rates of food consumption in different areas of food market Comparing these types of replies we found an interesting~ but - in view of the number of answers - insignificant difference between the two groups in FFV consumption and in meat consumption. The other reason could be, that meat consumption belongs to the traditional Hungarian lifestyle. keywords: answers; consumption; customers; ffv; hungary; internet; meat; option; process; quality cache: hjic-1046.pdf plain text: hjic-1046.txt item: #33 of 680 id: hjic-1047 author: Kókai, Z.; Heszberger, J.; Kollár-Hunek, K.; Kollár, G. title: A NEW VBA SOFTWARE AS A TOOL OF FOOD SENSORY TESTS date: 2002 words: 2554 flesch: 61 summary: Sensory testing methods can be divided into three main groups: • difference testing methods; • ranking methods • and descriptive methods. Sensory testing is generally considered to be subjective) as it relies on human individuals, instead of 'more accurate' equipments of other research fields (e.g.: analytical chemistry, rheology, etc.). keywords: analysis; assessors; data; profile; score; software; testing cache: hjic-1047.pdf plain text: hjic-1047.txt item: #34 of 680 id: hjic-105 author: Gál, G.; Hanák, L.; Argyelán, J.; Strbka, A.; Herseczki, Zs.; Szánya, T.; Aranyi, A.; Temesvári, K.; Horváth, Z. title: Simulated Moving Bed (SMB) Separation of Pharmaceutical Enantiomers and Crystallization date: 2006 words: 8380 flesch: 55 summary: 27, HUNGARY A promising solution for the separation of pharmaceutical enantiomers is the method of SMB liquid chromatography (SMB-LC). Where Bf = volumetric velocity (cm3/min), c = concentration in liquid phase (mg/cm3), z = axial distance (cm), t = time (min), ε = bed voidage (cm3 liquid/cm3 column), Af = column cross section (cm2), q = concentration in solid phase (mg/cm3). keywords: cm3; column; concentration; crystallization; dm3; eluent; hexane; liquid; min; raffinate; smb cache: hjic-105.pdf plain text: hjic-105.txt item: #35 of 680 id: hjic-106 author: Temesvári, K.; Aranyi, A.; Horváth, Z.; Nagy, M.; Szánya, T.; Hanák, L. title: Quasi-Continuous Elution Chromatographic Purification of a Steroid Active Compound date: 2006 words: 3298 flesch: 57 summary: The main steps of the elaboration of the quasi- continuous process are: (A.) Preliminary elution experiment on one of the eight 250X16 mm I.D. columns used in the SMB unit for quasi-continuous elution separation, for the determination of the solvent volumes necessary to the steps of the separation. After the elaboration of quasi-continuous elution chromatographic purification, the intensification of the process was carried out. keywords: columns; compound; elution; experiment; process; quasi; separation; smb cache: hjic-106.pdf plain text: hjic-106.txt item: #36 of 680 id: hjic-1061 author: Omota, L. M.; Iulian, O.; Mateescu, c. title: REFRACTIVE INDICES, DENSITIES AND DERIVED EXCESS PROPERTIES OF BINARY AND TERNARY SYSTEMS WITH DIMETHYL SULFOXIDE, WATER AND 1,4-DIOXANE date: 2001 words: 2795 flesch: 76 summary: The experimental uncertainties are: o(XJ = 0.0001, a(p)lkg n{' = 0.2 and o(VSJ!l0-9m3mor1 = 10. 2 Table 1 Densities and refractive indices of pure components at 298.15 K p , w-3-kg m·3 Compound exptl Literature 0.99704&,9 0.9971 Water 0.9970510 1.0957 1.095378 DMSO 1.0954712 1.0281 1.027978 1,4-dioxane 1.0280213 1.0278314,15 exptl 1.3325 1.4768 1.4198 nv literature 1.3324-'>·11 1.33146 1.33258 1.476812 1.47695 1.47758 1.41945 Table 2 Densities, excess molar volumes and excess partial molar volumes. 0.0033 0.0000 Tables 2 and 3 list the measured densities ( p ) and refractive indices ( n0 ) together with the calculated values of excess molar volumes ( yE ), excess partial -£-£ molar volumes of the components ( V, , V 2 ) and, respectively. keywords: 1,4; binary; dioxane; indices; mixing; molar; refraction; systems; values; volumes cache: hjic-1061.pdf plain text: hjic-1061.txt item: #37 of 680 id: hjic-1062 author: Orbán, Á.; Zelkó, R.; Dredán, J.; Marton, S.; Rácz, I. title: POLYMER-PLASTICIZER INTERACTIONS: COMPARISON OF EXPERIMENTAL DATA WITH THEORETICAL RESULTS date: 2001 words: 1674 flesch: 42 summary: The results indicate that the calculation of molar refraction values of polymer dispersions containing plasticizer offers useful means for the determination of the optimum concentration of the selected plasticizer. Calculation of the Molar Refraction by the Lorenz­ Lorenz Equation The following equation was used for the determination of molar refraction values (R): (1) where n is the determined refractive index, M is the molecular weight and d is the density of the examined material [8]. keywords: dispersions; eudragit; film; plasticizer; polymer; refraction; values cache: hjic-1062.pdf plain text: hjic-1062.txt item: #38 of 680 id: hjic-1063 author: Lipus, L. C.; Krope, J.; Garbai, L. title: MODIFIED SCALE CRYSTALLIZATION AND DISPERSION STABILITY IN MAGNETIC WATER TREATMENT date: 2001 words: 2383 flesch: 53 summary: Alternatively, the abundant precipitation of aragonite could be explained by Lorentz ion shifts, which have an influence on the value of ko and on the concentration of crystal - forming ions at the growing surface. Alternatively, the abundant precipitation of aragonite could be explained by Lorentz ion shifts, which have an influence on the value of ko and on the concentration of crystal - forming ions at the growing surface. keywords: ions; mwt; scale; surface; treatment; water cache: hjic-1063.pdf plain text: hjic-1063.txt item: #39 of 680 id: hjic-1064 author: Sutiman, D.; Căilean, A. title: THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL - ETHYLENE GLYCOL - FORMIC ACID date: 2001 words: 1979 flesch: 63 summary: The behaviour of three types of steel with a variable carbon content (from 0.2 to 0.4%) is studied in medium of methanol - 10% ethylene glycol- 8% formic acid with water concentration between 2% to 10%. The corrosion final compounds, for every value of water concentration, were insoluble in the system. keywords: acid; concentration; corrosion; formic; system; water cache: hjic-1064.pdf plain text: hjic-1064.txt item: #40 of 680 id: hjic-1065 author: Gergely, S.; Vatai, G.; Békássy-Molnár, E. title: ARSENIC, ZINC AND MAGNESIUM ION REMOVAL FROM WATER BY NANOFILTRATION, MODELLING OF REJECTIONS date: 2001 words: 2651 flesch: 60 summary: [7] modelled the salt rejection of nanofiltration membranes. 7. HAGMEYER G., GIMBEL R. : Modelling the salt 25 rejection of nanofiltration membranes for ternary ion mixtures and for single salts at different pH values. keywords: arsenic; ions; membrane; rejection; table; water cache: hjic-1065.pdf plain text: hjic-1065.txt item: #41 of 680 id: hjic-1066 author: Koltsov, N. I.; Keil, F. J. title: MULTIPLICITY OF STEADY STATES AND THE SHAPES OF ITS EXHIBITING IN CATALYTIC REACTIONS KINETICS date: 2001 words: 4313 flesch: 67 summary: Therefore, for describing breakdown it is quite enough to have reaction schemes giving self-crossing of kinetic curves. The purpose of the presented review is the analysis of the existing approaches and mathematical methods for the investigation of the critical phenomena of a type of multiple steady states in kinetics of catalytic reactions Keywords: multiplicity; steady state; hysteresis; self-crossing; breakdown; isola; mushroom; catalytic reaction; kinetics; step scheme. keywords: b.v; conditions; crossing; fig; koltsov; mss; oxidation; reaction; russian; scheme cache: hjic-1066.pdf plain text: hjic-1066.txt item: #42 of 680 id: hjic-1067 author: Németh, Á. S.; Szajáni, B.; Márczy, J. S.; Simon, M. L. title: A NOVEL METHOD FOR ISOLATION OF LIPOXYGENASE-1 ISOENZYME FROM SOYBEAN MEAL date: 2001 words: 1892 flesch: 67 summary: The essential step of the procedure is the selective heat treatment of soybean meal extract at 70 C in a medium of 0.05 ionic strength and pH 5.2 for 5 min. Ion Exchange Chromatography Anion exchange chromatography of heat treated soybean meal extract was performed according to Axelrod et al. keywords: heat; lox-1; meal; soybean cache: hjic-1067.pdf plain text: hjic-1067.txt item: #43 of 680 id: hjic-1068 author: Hasznos-Nezdei, M.; Pallai-Varsányi, E. title: DRYING PROCESS AND RESOLUTION OF ALKALI SILICATE POWDERS date: 2001 words: 3283 flesch: 55 summary: On effect of heating the dried powderlike product dissolves in water, and the obtained solution keeping likewise its colloidal properties can be used advantageously. The dried products are dissolved in water to different degrees depending on the final moisture content and on the SiO-;/ Na20 module value. keywords: content; dryer; glass; moisture; particles; silicate; solutions; water cache: hjic-1068.pdf plain text: hjic-1068.txt item: #44 of 680 id: hjic-1069 author: Gulyás, L.; Deák, G.; Kéki, S.; Horváth, R.; Zsuga, M. title: INVESTIGATION OF THE INDUSTRIALLY APPLICABLE SYNTHESIS OF IMINODIACETIC ACID date: 2001 words: 3611 flesch: 46 summary: The most economical procedure for the industrial preparation of iminodiacetic acid involves aminolysis of monochloroacetic acid, where the starting materials are monochloroacetic acid, ammonia and Ca(OH)2. Our important recognition is that glycine, produced together with the desired iminodiacetic acid, can be converted with monochloroacetic acid to iminodiacetic acid after removal of the excess of ammonia from the reaction mixture. keywords: acid; concentration; glycine; monochloroacetic; rate; reaction; time cache: hjic-1069.pdf plain text: hjic-1069.txt item: #45 of 680 id: hjic-107 author: Nagy, M.; Szánya, T.; Molnár, Z.; Turza, G.; Gál, G.; Hanák, L.; Argyelán, J.; Aranyi, A.; Temesvári, K.; Horváth, Z. title: Separation of Organic Compounds by Gradient Simulated Moving Bed Chromatography date: 2006 words: 2797 flesch: 64 summary: The function of segment III is to separate steroid A and B and to produce steroid B in the LROUT flow. SYMBOLS cAcetone concentration of acetone, g dm-3 cB concentration of steroid B, g dm-3 cA concentration of steroid A, g dm-3 k number of components k’ keywords: eluent; fig; lrout; min; raffinate; smb; steroid cache: hjic-107.pdf plain text: hjic-107.txt item: #46 of 680 id: hjic-1070 author: Gulyás, L.; Deák, G.; Kéki, S.; Horváth, R.; Zsuga, M. title: SYNTHESIS OF IMINODIACETIC ACID IN A CASCADE REACTOR date: 2001 words: 2074 flesch: 45 summary: As previous experimental data have shown, the conversion into iminodiacetic acid can be raised by increasing the concentration of glycine (and at the same time, each of the proportion of formation of glycolic acid and the reaction time is decreasing), an amount of concentrated aqueous solution of the calcium salt of monochloroacetic acid equal with the glycine­ content is added to the mixture, which has been previously freed from ammonia. During the investigation of the industrial synthesis of iminodiacetic acid our important recognition is that glycine, produced together with the desired iminodiacetic acid, can be converted with monochloroacetic acid to iminodiacetic acid after removal of the excess of ammonia from the reaction mixture. keywords: acid; cascade; iminodiacetic; reaction; reactor cache: hjic-1070.pdf plain text: hjic-1070.txt item: #47 of 680 id: hjic-1071 author: Hancsók, J.; Varga, Z.; Szirmai, L. title: ADVANTAGEOUS AND DISADVANTAGEOUS PROPERTIES OF DIESEL FUELS OF LOW SULPHUR AND REDUCED AROMATIC CONTENT date: 2001 words: 1954 flesch: 43 summary: [1 - 9): • reduction in the emission of acid rain precursor substances (S02, NOJ and particulates • reduction in the rate of the decrease in the total basic number of lubricating oil by lowering the amount of combustion products of nitrogen and sulphur compounds having acid character • reduction in the rate of increasing the viscosity by lowering the formation of particulates which can get into the lubricating oil • longer lubricating oil drain intervals are possible because of the lower solids formation and by reserving the base content of the lubricating oil for an extended period • by applying diesel fuels of low sulphur content, the total base number (TBN) of the lubricating oil can be reduced, consequently ash containing detergent· dispersant additives may be applied in lower level and the lower ash level contributes to operating of the exhaust treating catalysts and particulate filters more effectively and for a longer period • the lubricity improver additives are applied to diesel fuels not merely for reducing the wear of the fuel pump but it results in the same effects on different parts of the combustion chamber increasing the lifetime of the engine • the reduction in the NO content of exhaust gases contributes to decreasing the ozone problems in the upper air (where the problem is the ozone depletion} 58 Table In the paper the different quality grades of diesel fuels of low sulphur and reduced aromatic content are summarized (on the base of various degrees of reduction in sulphur and aromatic content). keywords: aromatic; content; diesel; fuel; lubricity; sulphur cache: hjic-1071.pdf plain text: hjic-1071.txt item: #48 of 680 id: hjic-1072 author: Luus, R. title: TOWARD GLOBAL OPTIMIZATION OF A DIFFICULT OPTIMAL CONTROL PROBLEM date: 2001 words: 2172 flesch: 66 summary: When the number of time stages is small, then the optimal control policy can usually be readily obtained either by iterative dynamic programming [2,3) or with the LJ optimization procedure [4}. However, there are some problems where the structure of the optimal control policy changes quite substantially when the number of time stages is increased. keywords: control; stages; time cache: hjic-1072.pdf plain text: hjic-1072.txt item: #49 of 680 id: hjic-1073 author: Storey, C. title: LEAST SQUARES AND THE MATRIX RICCATI EQUATION date: 2001 words: 2062 flesch: 75 summary: Received: July 26, 2001 There are a number of methods for least squares and total least squares solution of linear equations. When Newton's method is applied to the general AMRE XPX +QX +XF+G::O (4) a linear matrix equation, solutions Xi of which converge to X the solution of Eqn. keywords: solution cache: hjic-1073.pdf plain text: hjic-1073.txt item: #50 of 680 id: hjic-1074 author: Fan, L.T.; Bertók, B.; Friedler, F.; Shafie, S. title: MECHANISMS OF AMMONIA-SYNTHESIS REACTION REVISITED WITH THE AID OF A NOVEL GRAPH-THEORETIC METHOD FOR DETERMINING CANDIDATE MECHANISMS IN DERIVING THE RATE LAW OF A CATALYTIC REACTION date: 2001 words: 5216 flesch: 58 summary: The methodology presented above has been applied to two sets of available elementary reactions, one comprising elementary reactions (1) through (10) together with elementary reaction {14) in Table 1, function pFreedom(x, inc, exc) begin if XEOF(E) or v-(x)ninc=0 end; then return I v-(x)\inc\exc I else return I v-(x)\inc\exc l-1; function cFreedom(y, inc, exc) begin ifyEot(E) or v\y)ninc=0 then return J v+(y)\inc\exc) else return I v+(y)\inc\exc l-1; end; Fig. Synthesizing the networks of elementary reactions is exceedingly convoluted due to the combinatorial complexity arising from the fact the number of elementary reactions involved usually far exceeds that of available elementary balances, which is only 2 for the ammonia synthesis. keywords: end; mechanisms; network; pathway; reaction; set; steps cache: hjic-1074.pdf plain text: hjic-1074.txt item: #51 of 680 id: hjic-1075 author: Alexeev, B.V.; Koltsov, N.I.; Keil, F.J. title: COMPUTER CONSTRUCTION OF CHEMICAL REACTION MECHANISMS date: 2001 words: 3335 flesch: 61 summary: =wn =wzl =w31 =0 allows one to write down a mechanism and chemical formulas of reactants and intermediate substances in the following form N0+2X1 = X 2 +X3 , CO+X2 = = C02 + X 1 , NO+X3 =N2 +X 2 , X 1 =Zp X 2 =Z1P2P31 , X 3 =Z1Jl-Pz- 1~, CO=P3 ,C02 =P2,NO=~,N2 =~2P2-2~2 • This is a mechanism l.N0+2K =KO+KN, 2. CO+ 2CO + 2NO = 2C02 + N2 Reaction mechanism Example 2. 1. b11CO +b12C02 +b13 NO +b14N2 + 2X1 = Three-step mechanism 1. 2X1 = X 2 + X3 , 2. X 2 =X1 , is supposed to be realized for the reaction 2CO + 2NO = 2C02 + N 2 . keywords: chemical; matrix; program; reaction; scheme; step; stoichiometric cache: hjic-1075.pdf plain text: hjic-1075.txt item: #52 of 680 id: hjic-1076 author: Patmar, E. S.; Alexeev, B. V.; Koltsov, N. I.; Keil, F. J. title: ESTIMATION OF STEADY STATES NUMBER OF ONE-ROUTE CATALYTIC REACTIONS date: 2001 words: 2272 flesch: 72 summary: This means that the existence of one reversible step in reaction schemes having a great number of ISS is not only a necessary [6] but also a sufficient condition. 87-90 (2001) ESTIMATION OF STEADY STATES NUMBER OF ONE-ROUTE CATALYTIC REACTIONS E. S. PATMAR, B. V. ALEXEEV, N. I. KOLTSOV and F. J. KEIL1 (~epartment of Physic~ Chemi~try o! keywords: iss; number; reaction; steps cache: hjic-1076.pdf plain text: hjic-1076.txt item: #53 of 680 id: hjic-1077 author: Szukiewicz, M.; Petrus, R. title: APPROXIMATE MODELS APPLICATION FOR MODELLING OF FIXED BED REACTORS date: 2001 words: 1941 flesch: 55 summary: Goto and Hirose [2], have presented a number of approximate models, but their accuracy for diffusion and reaction processes are unsatisfactory for a wide range of Thiele modulus and time. Approximate model This model is based on the concept of approximate model for the pellet. keywords: catalyst; concentration; mass; model; pellet cache: hjic-1077.pdf plain text: hjic-1077.txt item: #54 of 680 id: hjic-1078 author: Heyden, A.; Düren, T.; Kolkowski, M.; Keil, F. J. title: DESIGN OF A PRESSURE SWING ADSORPTION MODULE BASED ON CARBON NANOTUBES AS ADSORBENT – A MOLECULAR MODELING APPROACH date: 2001 words: 6102 flesch: 62 summary: SYMBOLS A rotational Matrix b trial orientation C total gas concentration Ct concentration of component k Dr,t transport diffusion coefficient of molecule k Ds,k self-diffusion coefficient of molecule k one needs to know equilibrium adsorption data q;, effective pore diffusion coefficients D~.~: and an a..xial dispersion coefficient Dax. keywords: adsorption; bed; concentration; configuration; equilibrium; ethane; gas; potential; pressure; step; trial cache: hjic-1078.pdf plain text: hjic-1078.txt item: #55 of 680 id: hjic-1079 author: Herrmann, N. title: B-SPLINES CONTRA BÉZIERSPLINES date: 2001 words: 3045 flesch: 77 summary: A typical choice is to consider spline functions which are linear outside the interval xn+l+I) knot sequence N li B-Splines (t- x)~ +-function A =(X0 , ••• ,xn+l) given knots C1 - 1[a.b] (l-1)-times continuously differentiable functions IP 1 vector space of polynomials of degree less or equall S1(A) Q B1(x) do, ... ,dn Bt(x) xn(x) s(x) a/ Po, ... ,Pq l(x) vector space of spline functions infinite knot sequence B-Spline curve de Boor points Bernstein polynomials Bezier curve spline function coefficients in the de Boor algorithm interpolation points linear spline function difference quotients REFERENCES 1. COSTATINI, P., MORANDI, R.: keywords: points; splines cache: hjic-1079.pdf plain text: hjic-1079.txt item: #56 of 680 id: hjic-108 author: Gyenis, J.; Dencs, J.; Nős, G.; Marton, G. title: A Study on the Rate and Mechanism of Thermal Degradation of Starch in Production of Flocculants date: 2006 words: 5254 flesch: 52 summary: Tim e, min MW fractions, MDa 145 oC 32 molecular weight category (above 32 MDa) whose products still remain within this category (when e.g. a molecule of 100 MDa splits into two fragments with 60 and 40 MDa molecular weights). The degradation probability of the molecules being in a given molecular weight interval were increasing with rising treatment temperature and reduced significantly with decreasing molecular weight. keywords: degradation; distribution; mda; model; molecules; process; reaction; starch; temperatures; time; weight cache: hjic-108.pdf plain text: hjic-108.txt item: #57 of 680 id: hjic-1080 author: Jokić, A.; Zavargó, Z. title: OPTIMIZATION OF PIPELINE NETWORK FOR OIL TRANSPORT date: 2001 words: 2189 flesch: 80 summary: for pipe network sections j index. for pipe network paths lc number of sections in a given path L node height, m L~ equivalent height, m Table 7 keywords: k;x; network; pipe; section cache: hjic-1080.pdf plain text: hjic-1080.txt item: #58 of 680 id: hjic-1081 author: Ujhidy, A.; Bucsky, G.; Németh, J. title: NEW POSSIBILITIES FOR THERMAL WATER TREATMENT date: 2001 words: 3018 flesch: 56 summary: The heating of homes with thermal water has raised a number of technical-financial problems, so now only secondary utilization seems to be economical. Characterization of thermal waters The definition of mineral and medicinal waters was modified several times in the previous century. keywords: carbon; dioxide; point; pressure; scaling; water; zalakaros cache: hjic-1081.pdf plain text: hjic-1081.txt item: #59 of 680 id: hjic-1082 author: Drégelyi-Kiss, Á.; Kemény, S. title: OBTAINING QUANTITATIVE INFORMATION ON THE FLUCTUATION OF THE ACTIVE INGREDIENT CONTENT IN DRUGS – WHAT WOULD THE CUSTOMER FIND date: 2001 words: 2856 flesch: 63 summary: Keywords: nested design, Satterthwaite-approximation, confidence intervals, variance components, drug analysis Introduction In pharmaceutical industries there are strict guidelines to check the manufacturing processes in order to assure the steadiness of quality. It is important to estimate variance components ( 11 ~11 pH of metal solution 2.1 (Zn2+)* 5.5 (Ni2+)* 2-9 2; 7; 9 Polymer/metal [% ] 2 7 8 9 pH of metal solution Ni Zn Figure 3: Retention of Ni2+ and Zn2+ binding by PEI-25 versus pH of metal solution PEI/Me2+ = 1 mol/mol, PES-10 membrane 20 0 10 20 30 40 50 60 R [% ] 2 7 8 9 pH of metal solution Zn-PAMAM G4.5 Zn-PAMAM G5.0 Ni-PAMAM G4.5 Ni-PAMAM G5.0 Figure 4: keywords: complexation; membrane; metal; mol; pamam; polymer; solution cache: hjic-172.pdf plain text: hjic-172.txt item: #228 of 680 id: hjic-173 author: Csanádi, Zs.; Sisak, Cs. title: Production of Short Chain Fructooligosaccharides date: 2008 words: 2091 flesch: 49 summary: When glucose oxidase activity was measured we used the o-toluidine method Figure 3: The scheme of the integrated reactor system for the production of fructooligosaccharides Table 2: Glucose concentrations after several cycles in the integrated reactor system I. II. keywords: activity; enzyme; fructooligosaccharides; glucose; product; production; reactor cache: hjic-173.pdf plain text: hjic-173.txt item: #229 of 680 id: hjic-174 author: Cserjési, P.; Bélafi-Bakó, K.; Nemestóthy, N.; Gubicza, L. title: Recent Trends on Application of Ionic Liquids in Organic Synthesis date: 2008 words: 6252 flesch: 51 summary: The nano particle catalysts can endure forcing conditions (75 °C, 40 bar H2), resulting in high reaction rates and high conversions compared with other nano particles that operate in ILs. This gives rise to the ideal situation of high reactions rates, not impeded by phase problems, with the ideal separation properties. keywords: catalyst; chem; hydrogenation; ils; liquids; methylimidazolium; oxidation; phase; reaction; solvent; synthesis; system cache: hjic-174.pdf plain text: hjic-174.txt item: #230 of 680 id: hjic-175 author: Fülöp, A.; Krár, M.; Hancsók, J. title: Application of NIR Spectroscopy by Determination of Quality Properties of Vegetable Oils and Their Derivatives date: 2008 words: 1811 flesch: 52 summary: Materials and methods Oil samples The 134 different types of rapeseed and sunflower oil samples were obtained from various locations of Hungary. According to the calibration results we found that the created calibration models are suitable for the determination of vegetable oil properties. keywords: acid; oil; samples; values cache: hjic-175.pdf plain text: hjic-175.txt item: #231 of 680 id: hjic-176 author: Gontaru, L.; Plánder, S.; Simándi, B. title: Investigation of Satureja Hortensis L. as a Possible Source of Natural Antioxidants date: 2008 words: 2705 flesch: 49 summary: Influence of the milling on the yield and antioxidant activity of different extracts of savory 2 is represented in Table 3. Table 3: Extraction Yield and antioxidant activity of different extracts of savory 2 with and without milling aYield (%) aIC 50% µg/ml S with milling without milling with milling without milling 1 26.91 ± 0.50 25.36 ± 1.07 35 ± 0.1 24 ± 0.1 2 25.77 ± 0.35 18.67 ± 0.90 60± 0.1 53 ± 0.7 3 11.48 ± 0.54 8.48 ± 0.44 90 ± 0.2 80 ± 0.3 aMean value of three measurements ± SD (standard deviation) S - solvent; 1: ethanol 96%; 2: ethanol 100%; 3: ethyl acetate. keywords: activity; antioxidant; ethanol; extraction; savory cache: hjic-176.pdf plain text: hjic-176.txt item: #232 of 680 id: hjic-177 author: Gyalai-Korpos, M.; Feczák, J.; Réczey, K. title: Sweet Sorghum Juice and Bagasse as a Possible Feedstock for Bioethanol Production date: 2008 words: 3230 flesch: 53 summary: Two different carbon sources were investigated: - Enzymatic hydrolysates of sweet sorghum bagasse pretreated in different ways. In 2007 4.92 billion liters of ethanol were produced from sweet sorghum juice in China and India. keywords: bagasse; content; ethanol; fermentation; hydrolysis; koh; naoh; sorghum cache: hjic-177.pdf plain text: hjic-177.txt item: #233 of 680 id: hjic-178 author: Hetényi, K.; Németh, Á.; Sevella, B. title: Examination of Medium Supplementation for Lactic Acid Fermentation date: 2008 words: 3350 flesch: 51 summary: Using the gluten fraction can substitute the major part of the added yeast extract as nitrogen source, but since there is a need for other microcomponents (vitamins, amino acids etc.) of yeast extract, thus a minimal amount of yeast extract is necessary for lactic acid fermentation. Figure 1: Lactic acid fermentation on wheat starch hydrolysate without gluten and other supplements: (●) glucose; (▲) lactic acid; (■) optical (biomass)density 2. keywords: acid; extract; fermentation; gluten; l-1; nitrogen; wheat; yeast cache: hjic-178.pdf plain text: hjic-178.txt item: #234 of 680 id: hjic-179 author: Kiss, K.; Cserjési, P.; Nemestóthy, N.; Gubicza, L.; Bélafi-Bakó, K. title: Kinetic Study on Hydrolysis of Various Pectins by Aspergillus niger Polygalacturonase date: 2008 words: 2114 flesch: 48 summary: 1. 0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 0 20 40 60 80 100time (min) re du ci ng s ug ar (g /l) 1 g/l 2 g/l 4 g/l Figure 1: Progress curves of pectin hydrolysis by polygalacturonase from Aspergillus niger (Reaction conditions: pH 4.1, 150 rpm, 50 °C, 0.01 g enzyme, red currant pectin) We have studied the kinetics of pectin hydrolysis by polygalacturonase enzyme from Aspergillus niger in details using a commercially available, low esterification degree LM-5CS pectin substrate and the kinetic parameters were determined [8]. keywords: acid; hydrolysis; pectin; product; reaction cache: hjic-179.pdf plain text: hjic-179.txt item: #235 of 680 id: hjic-180 author: Kovács, S.; Krár, M.; Hancsók, J. title: Investigation of Enzyme-Catalyzed Transesterification of Used Frying Oils date: 2008 words: 2995 flesch: 57 summary: Methyl ester content of the product prepared from the 50-50% mixture (MIX) of high oleic sunflower oil and used frying oil was between the results of the previous two. This paper presents the results of some experiments made by applying used frying oils and a process which is studied less intensively in the literature. keywords: content; ester; frying; methyl; oil; oils; transesterification cache: hjic-180.pdf plain text: hjic-180.txt item: #236 of 680 id: hjic-181 author: Kovács, Z.; Discacciati, M. title: Modelling of Multi-Step Microfiltration Process for Solvent Exchange date: 2008 words: 3081 flesch: 53 summary: Both particle and solvent feed concentrations have significant contributions to the observed permeate flux. The MF separation is carried out in a multi-step batch operation including pre- concentration, dilution mode, and post-concentration process steps. keywords: concentration; feed; flux; permeate; process; solvent; step cache: hjic-181.pdf plain text: hjic-181.txt item: #237 of 680 id: hjic-182 author: Krár, M.; Kasza, T.; Tóth, Cs.; Hancsók, J. title: Investigation of the Heterogeneous Catalytic Transformation of Vegetable Oil/Gas Oil Blends date: 2008 words: 3852 flesch: 55 summary: Applying feedstock with higher sunflower oil content (with lower sulphur content) at same operating conditions the sulphur contents of the products were lower, of course. One of the best alternative is to convert the vegetable oils (or other materials containing triglycerides) and/or their blends with gas oil to hydrocarbons rich in paraffins. keywords: ch2; content; gas; gas oil; oil; sunflower; sunflower oil; temperature cache: hjic-182.pdf plain text: hjic-182.txt item: #238 of 680 id: hjic-183 author: Major, B.; Nemestóthy, N.; Gubicza, L.; Bélafi-Bakó, K. title: Enzymatic Esterification of Lactic Acid under Microwave Conditions in Ionic Liquids date: 2008 words: 3577 flesch: 56 summary: The monitoring wave-length was 215 nm. Results and discussion Experiments using organic solvents For comparison of the results in ILs reactions were carried out in organic solvents. [16] straight-chain 2-hydroxy acids are highly reactive in esterification reactions with 1-butanol using 5000 mg Candida rugosa enzyme/mmol LA, while according to From et al. keywords: acid; cyphos; enzyme; microwave; reaction; water; yield cache: hjic-183.pdf plain text: hjic-183.txt item: #239 of 680 id: hjic-184 author: Marsi, G.; Nagy, G.; Hancsók, J. title: Investigation and Production of Bioethanol/Gas Oil Emulsions date: 2008 words: 3832 flesch: 55 summary: Se pa ra te d bi oe th an ol , cm 3 20°C 3°C 1°C Temperature, °C Figure 2: Stability of bioethanol/gas oil emulsions as a function of temperature (without additive, 15 v/v% bioethanol) 0 2 4 6 8 10 12 14 0 5 10 15 20 25 Concentration of biodiesel in base gas oil, v/v% Se pa ra te d bi oe th an ol , c m 3 20°C 3°C 1°C Temperature, °C Figure 3: Stability of bioethanol/gas oil emulsions as a function of temperature (1% additive, 15 v/v% bioethanol) 0 2 4 6 8 10 12 14 0 5 10 15 20 25 Concentration of biodiesel in base gas oil, v/v% Se pa ra te d bi oe th an ol , c m 3 20°C 3°C 1°C Temperature, °C Figure 4: Stability of bioethanol/gas oil emulsions as a function of temperature (2% additive, 15 v/v% bioethanol) 0 2 4 6 8 10 12 0 5 10 15 20 25 Concentration of biodiesel in base gas oil, % Se pa ra te d bi oe th an ol , c m 3 Without additive 1% additive 1,5% additive 2% additive Figure 5: Stability of bioethanol/gas oil emulsions as a function of quantity of additive (temperature: 20 °C, bioethanol content: 15 v/v%) 0 50 100 150 200 250 300 350 400 0 20 40 60 80 100 Quantity of distillated product, ftf% T em pe ra tu re , ° C Base gas oil Base gas oil + 5v/v% bioethanol Base gas oil + 10v/v% bioethanol Base gas oil + 15v/v% bioethanol Figure 11: Change of the distillation properties of bioethanol/gas oil and/or biodiesel emulsions as a function of bioethanol content (biodiesel content of base gas oil: 5 v/v%) 40 44 48 52 56 Base gas oil 2 v/v% bioethanol 4 v/v% bioethanol 6 v/v% bioethanol 8 v/v% bioethanol 10 v/v% bioethanol C et an e nu m be r Without biodiesel 5v/v% biodiesel Figure 12: Change of cetane number of bioethanol/gas oil and/or biodiesel emulsions as a function bioethanol content (biodiesel content of base gas oil: 5v/v%) keywords: base; biodiesel; bioethanol; emulsions; gas; oil cache: hjic-184.pdf plain text: hjic-184.txt item: #240 of 680 id: hjic-185 author: Modla, G.; Lang, P. title: Separation of a Ternary Homoazeotropic Mixture by Pressure Swing Batch Distillation date: 2008 words: 3580 flesch: 58 summary: Conclusion The separation of a ternary mixture (n-pentane-acetone- cyclo-hexane) with pressure swing batch distillation was investigated by feasibility studies and rigorous simulation calculations. 10. MODLA G., LANG P., KOPASZ A.: „Entrainer selection for pressure swing batch distillation”, ESCAPE-18, Lyon, 6 pages on CD (2008). 11. keywords: azeotrope; batch; column; composition; distillation; pressure; separation; swing cache: hjic-185.pdf plain text: hjic-185.txt item: #241 of 680 id: hjic-186 author: Molnár, E.; Nemestóthy, N.; Bélafi-Bakó, K. title: Galacturonic Acid Recovery from Pectin Rich Agro-Wastes by Electrodialysis with Bipolar Memranes date: 2008 words: 2379 flesch: 53 summary: Due to the transport of galacturonate ions and protons, galacturonic acid is formed in acid solution. Average current efficiency [7] for galacturonic acid can be calculated as NI CQFΔ =η where Q is volume flux of acid solution, F is the Faraday constant, ΔC is the concentration difference between acid solution in the feed of the entrance and that in the exit, N is the number of the cell units, and I is the average current. keywords: acid; current; galacturonic; ions; pectin; solution; voltage cache: hjic-186.pdf plain text: hjic-186.txt item: #242 of 680 id: hjic-187 author: Pethõ, D.; Gáspár, Gy.; Horváth, G.; Liszi, J.; Szakály, R.; Tóth, I. title: Ion Transport via Electrosorption date: 2008 words: 3914 flesch: 63 summary: Nickel coated nickel electrode was prepared by electrolysis and porous nickel electrode was made by powder metallurgic method. Preparation of nickel coated nickel electrodes by electrolysis Nickel was precipitated on the surface of nickel sheet. keywords: area; electrode; electrosorption; layer; nickel; potential; solution; surface cache: hjic-187.pdf plain text: hjic-187.txt item: #243 of 680 id: hjic-188 author: Pölczmann, Gy.; Baladincz, J.; Hancsók, J. title: Investigation of Producing Modern Base Oils date: 2008 words: 2651 flesch: 49 summary: Main goals of these experiments were to produce high quality base oil and high quality gas oil as co-product. PÖLCZMANN1 , J. BALADINCZ2, J. HANCSÓK1 1University of Pannonia, Department of Hydrocarbon and Coal Processing 8200 Veszprém, Egyetem u. 10., Pf.: 158, HUNGARY E-mail: polczmann@almos.uni-pannon.hu 2Slovnaft, a.s., Vlčie hrdlo 1, 824 12 Bratislava, SLOVAKIA Modern lube oils are prepared from base oils (base oil mixtures) and additives. keywords: base; content; engine; oils; properties; quality; sulphur; viscosity cache: hjic-188.pdf plain text: hjic-188.txt item: #244 of 680 id: hjic-189 author: Szentes, A.; Horváth, G. title: Role of Catalyst Support (CS) in the Growth of Multi-Walled Carbon Nanotubes (MWCNTs) date: 2008 words: 2275 flesch: 63 summary: If the interaction is strong, a metal particle does not budge from catalyst support. If the interaction is weak, a metal particle budge from catalyst support and growing of the tube starts from this point. keywords: carbon; catalyst; flow; nanotubes; reaction; support cache: hjic-189.pdf plain text: hjic-189.txt item: #245 of 680 id: hjic-190 author: Takács, L.; Vatai, Gy. title: Mass Transfer Characteristics of Isopropanol Pervaporative Dehydration through CMC-CA-01 Membrane date: 2008 words: 2782 flesch: 42 summary: The characteristic of pervaporation membrane can be evaluated from the view of capacity/permeability and the separation efficiency of the membrane. Figure 6: Pervaporation separation index of water as a function of feed at different temperatures Conclusion keywords: component; concentration; feed; mass; membrane; pervaporation; process; separation; transfer; water cache: hjic-190.pdf plain text: hjic-190.txt item: #246 of 680 id: hjic-191 author: Tokos, H.; Novak-Pintariè, Z. title: Towards Sustainable Water Usage in a Beverage Plant date: 2008 words: 3213 flesch: 58 summary: Where: UB, W LB, W fw,n fw,nm , m – upper and lower bounds for water mass from freshwater source fw to operation n, t UB, W LB, W ww,n ww,nm , m – upper and lower bounds for water mass from continuous water source ww to operation n, t UB, PP LB, PP n,nc n,ncm , m – upper and lower bounds for re-used water mass from operation n to operation nc, t UB, OUT LB, OUT n nm , m – upper and lower bounds for wastewater mass from operation n to discharge, t W fw,nY – binary variable for the existence or non existence of water mass from freshwater source fw to operation n W ww,nY – binary variable for the existence or non- existence of water mass from continuous water source ww to operation n 127 PP n,ncY – binary variable for re-used water mass from operation n to operation nc OUT nY – binary variable for wastewater mass from operation n to discharge. ( ) ( )( ) ANALL OHY WSEWW ,Obj FCT t PttqPmF n n ww j wwjJww fw n fwnfw ⋅⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ + ⎥ ⎥ ⎦ ⎤ ⎢ ⎢ ⎣ ⎡ ⋅−⋅+⋅= ∑ ∑∑∑∑ Δ λ (20) Where: FObj – objective function, £/a W fwP – price of freshwater source fw, £/t W wwP – price of continuous water source ww, £/t λOHY – annual operating time, h/a ALLtΔ – overall time interval, h FAN – annualization factor. keywords: batch; mass; operation; storage; tank; use; water cache: hjic-191.pdf plain text: hjic-191.txt item: #247 of 680 id: hjic-192 author: Ujj, V.; Szuhánszki, T.; Schindler, J.; Czugler, M.; Fogassy, E.; Keglevich, Gy. title: Separation of the Enantiomers of p-Chiral Cyclic Phosphorus Compounds date: 2008 words: 3435 flesch: 59 summary: In the next part of the work, resolution processes of 1a with (–)-3 were further tested in various other solvents or solvent mixtures, but no crystals were obtained. The antipodes of 1-aryl-, 1-alkyl- and 1-alkoxy-3-methyl-3-phospholene 1-oxides 1a-h were separated in good yields and in high enantiomeric excesses (up to >99% ee) by resolution via formation of diastereomeric complexes with (–)-(4R,5R)-4,5-bis(diphenylhydroxymethyl)-2,2-dimethyldioxolane (–)-2 (TADDOL) or (–)-(2R,3R)-α,α,α’,α’-tetraphenyl- 1,4-dioxaspiro[4.5]decan-2,3-dimethanol (–)-3. keywords: complex; complexes; oxides; phospholene; resolution cache: hjic-192.pdf plain text: hjic-192.txt item: #248 of 680 id: hjic-193 author: Varga, Cs.; Miskolczi, N.; Bartha, L.; Lipóczi, G.; Falussy, L. title: Improving the compatibility of man-made fibre reinforced composites date: 2008 words: 3540 flesch: 51 summary: Fibre reinforced composites are unique materials and are heterogeneous in composition. In fibre reinforced composites the phases strengthen each others effect due to the interaction between the fibres and the matrix compensating the worse properties of the clean components. keywords: additive; carbon; case; composites; fibre; properties; tensile cache: hjic-193.pdf plain text: hjic-193.txt item: #249 of 680 id: hjic-194 author: Varga, T.; Rádi, G.; Chován, T. title: Improving the Mathematical Model of a Heterocatalytic Tube Reactor date: 2008 words: 3240 flesch: 45 summary: The former version of reactor model was applied in a Operator Support System Reactor model The investigated, vertically positioned reactor contains a large number of tubes filled with catalyst as shown in Fig. keywords: catalyst; cfd; gas; model; pellet; phase; process; reactor cache: hjic-194.pdf plain text: hjic-194.txt item: #250 of 680 id: hjic-195 author: Varga, T.; Horváth, G.; Abonyi, J. title: Determination of Safety Operating Regimes Based on the Analysis of Characteristic Equation of State-Space Model date: 2008 words: 3580 flesch: 51 summary: Keywords: operating regime, process model, simulation fed-batch reactor, stability analysis. Therefore a tool based on process models and stability analysis can be very useful in checking the appropriate operation and helping their work. keywords: analysis; model; operation; process; reaction; reactor; runaway; stability cache: hjic-195.pdf plain text: hjic-195.txt item: #251 of 680 id: hjic-196 author: Vass, I.; Krištofiè, M.; Ryba, J. title: Properties of Polyamide 6 Fibres Modified by Silicate Nanoparticles date: 2008 words: 1724 flesch: 51 summary: Fibres modified by concentrate C have the best tensile strength in comparison with other modified fibres, particularly when the amount of concentrate in fibres is lower, i.e. 5 and 10 wt.% and at the drawing ratio 3.5. [NH(CH2)5CO]m - OH + (2n-1) H2O NH3 CH2 CH2 - The second part of contribution deals with the preparation of polyamide 6 (PA 6) fibres non-modified and modified by concentrates and determination of some properties (i.e. mechanical, sorptive, barrier and thermal properties) of modified fibres, too. keywords: concentrates; fibres cache: hjic-196.pdf plain text: hjic-196.txt item: #252 of 680 id: hjic-214 author: Fazekas, B.; Pitás, V.; Thury, P.; Kárpáti, Á. title: Examination of the Use of Support Materials of Natural Origin in Wastewater Treatment date: 2009 words: 2758 flesch: 41 summary: As it can be seen on the figure, the ammonium removal capacity of the biofilter made of zeolite grains was about twice as the control reactors. It might be due to the ammonium fixation of the zeolite or an advantageous surrounding for activity of the nitrifiers on the surface of zeolite grains. keywords: alginite; ammonium; concentration; nitrogen; reactor; removal; sludge; zeolite cache: hjic-214.pdf plain text: hjic-214.txt item: #253 of 680 id: hjic-215 author: Thury, P.; Fazekas, B.; Pásztor, I.; Pitás, V.; Balaskó, L.; Kárpáti, Á. title: Examination of the Use of Support Materials of Natural Origin in Wastewater Treatment date: 2009 words: 3864 flesch: 53 summary: Keywords: nitrogen removal, nitrit route, two sludge cycle, animal waste rendering industry Introduction Nowadays wastewater treatment is the essential part of the environmental infrastructure. The realization of the nitrogen removal in the past The recognition of the special ways of nitrogen elimination in the wastewater treatment and the experimental results in the same field have resulted in the development of new wastewater treatment strategies. keywords: ammonium; concentration; nitrogen; process; removal; sludge; stage; treatment; wastewater cache: hjic-215.pdf plain text: hjic-215.txt item: #254 of 680 id: hjic-216 author: Gál, G.; Hanák, L.; Szánya, T.; Argyelán, J.; Strbka, A.; Marcinkóová, T.; Aranyi, A.; Temesvári, K. title: Examination of Crystallization Coupled to the SMB-LC Process date: 2009 words: 6181 flesch: 64 summary: Later on S enantiomer crystal seed is added to the liquid while cooling it. Solubility model calculation results S R S R S keywords: concentration; crystallization; liquid; racemic; solubility cache: hjic-216.pdf plain text: hjic-216.txt item: #255 of 680 id: hjic-217 author: Angyal, A.; Miskolczi, N.; Bartha, L.; Gergó, P. title: Synthesis and Evaluation of Modified Polyethylene Wax Applied as Dispersant in Rubber Bitumen Composites date: 2009 words: 2925 flesch: 53 summary: In our experimental work additives were synthesised as dispersant for rubber bitumen composites. The effect of dispersant additives was evaluated in rubber bitumen composites. keywords: additives; bitumen; cm-1; composites; grafting; pew; polyethylene; rubber cache: hjic-217.pdf plain text: hjic-217.txt item: #256 of 680 id: hjic-218 author: Sági, R.; Bartha, L.; Baladincz, J. title: Investigation of Modified PIB-Succinimides in Low SAPS Engine Oils date: 2009 words: 1978 flesch: 44 summary: On the other hand, engine oil seal compatibility tests have become more important and severe in the recent engine oil performance levels (API CI-4, CJ-4; ACEA Ax/Bx, Cx, Ex; JASO DH-1 etc.). In the greatest volume dispersant additives, mainly polyisobuthylene- succinimide types are used in the formulation of engine oils. keywords: dispersant; engine; oils; properties; seal; znddp cache: hjic-218.pdf plain text: hjic-218.txt item: #257 of 680 id: hjic-219 author: Baradits sr., Gy.; Madár, J. title: Cumulative Lopa Method date: 2009 words: 3563 flesch: 55 summary: Cumulative LOPA method SW: the Tool4S There are several software tools for making HAZOP and LOPA, but our experience has showed that most of them only can calculate the RRF value for a scenario (per scenario method) but do not accumulate them. Conclusions In this article, we evaluated the existing methods which calculate the SIL value of SIFs within a HAZOP study using LOPA method. keywords: frequency; lopa; method; risk; safety; scenario cache: hjic-219.pdf plain text: hjic-219.txt item: #258 of 680 id: hjic-220 author: Dobos, L.; Jäschke, J.; Abonyi, J.; Skogestad, S. title: Dynamic Model and Control of Heat Exchanger Networks for District Heating date: 2009 words: 7116 flesch: 56 summary: Keywords: district heating network, modeling, non-linear model predictive control, MPC Introduction It has become natural for people today to have a network for the distribution of the electricity. Taking model error into consideration is not a negligible fact since the performance of the model predictive control is a function of the model parameters, and model parameters can be the function of the time (eg. fouling in the heat exchangers can change the heat transfer coefficient). keywords: case; control; district; district heating; heat; heating; heating network; imc; model; network; optimization; performance; predictive; time cache: hjic-220.pdf plain text: hjic-220.txt item: #259 of 680 id: hjic-221 author: Abonyi, J. title: Integration of Process Simulators in Advanced Process Control Solutions date: 2009 words: 3903 flesch: 48 summary: Hence, OPC is known for more than just its applications within process control. The specification defined a standard set of objects, interfaces and methods for use in process control and manufacturing automation applications to facilitate interoperability. keywords: controller; crystallizer; model; opc; plant; predictive; process; simulation; system; variables cache: hjic-221.pdf plain text: hjic-221.txt item: #260 of 680 id: hjic-222 author: Bankó, Z.; Abonyi, J. title: PCA Driven Similarity for Segmented Univariate Time Series date: 2009 words: 6150 flesch: 57 summary: The increasing popularity of knowledge discovery and data mining tasks for discrete data has indicated the growing need for similarly efficient methods for time series data. Finally, it is shown that the presented method can be considered as the logical extension of the Correlation Based Dynamic Time Warping (CBDTW) to univariate time series. keywords: data; distance; dtw; pca; pla; segmentation; segments; series; similarity; time; time series cache: hjic-222.pdf plain text: hjic-222.txt item: #261 of 680 id: hjic-230 author: Nagy, G.; Varga, Z.; Kalló, D.; Hancsók, J. title: Investigation of Hydrogenation of Aromatic Hydrocarbons on Pt/Pd/USY Catalyst date: 2009 words: 3835 flesch: 55 summary: Since 1st January, 2009 the maximum sulphur content of diesel fuels has been 10 mg/kg, the maximum allowable polycyclic aromatic content has decreased from 11% to 8% (in the future 2–4%) and the maximum level of total aromatic content might be specified (about 15–20%) Cetane number, minimum 48/45 48/45 42 48 48 49 51 51 51 Density (kg/m3) 815-860 815-860 815-860 820-860 820-860 820-860 820-845 820-845 820-845 Total aromatic content (%) - - - - - - - - - 15-20* Polycyclic aromatic content (%) - - - - - - 11.0 11.0 8.0 (2.0-4.0***) Sulphur content (mg/kg) 10000 /5000/ 2000 10000 /5000/ 2000 5000/ 2000 2000/ 500/ 100 500/ 100 500 350 50/ 10** 10 The MSZ 1627 diesel fuel standard was overruled in 1999 and the MSZ EN 590 standard became operative. keywords: bar; gas; hydrodearomatization; temperature cache: hjic-230.pdf plain text: hjic-230.txt item: #262 of 680 id: hjic-231 author: Kulcsár, E.; Nagy, E. title: Enzyme Facilitated Enantioselective Transport of (L)-Lactic Acid through Membranes date: 2009 words: 3082 flesch: 49 summary: The significance of lactic acid arises from its utility as a monomer for biodegradable solvents and polymers in which the hydroxyl and the carboxyl functional groups permit it to participate in a wide variety of chemical reactions [1]. The reactivity of an alcohol as lactic acid (or its esters or amides) may undergo xanthation reaction with carbon bisulphide, esterification with organic acids and dehdrogenation or oxygenation to form pyruvic acid or its derivatives. keywords: acid; enzyme; esterification; lactate; lactic; lipase; liquid; membrane; reaction cache: hjic-231.pdf plain text: hjic-231.txt item: #263 of 680 id: hjic-232 author: Balassy, A.; Németh, Á.; Sevella, B. title: Immobilized Enzymes Availability for Glycerol – 1,3 Propanediol Bioconversion date: 2009 words: 3145 flesch: 47 summary: Keywords: Glycerol; 1,3-propanediol; enzyme activities; immobilization Introduction As glycerol is a nontoxic, edible, biodegradable compound, it will provide important environmental benefits to platform products. Enzyme activities and protein concentrations from Run 3 are shown in Fig. keywords: activity; enzyme; fermentation; glycerol; g·l-1; immobilization; pdor; propanediol cache: hjic-232.pdf plain text: hjic-232.txt item: #264 of 680 id: hjic-233 author: Orbán-Mihálykó, É.; Lakatos, B. G.; Mihálykó, Cs.; Lucz, L. title: Probability and Expected Time of Emptying of Intermediate Storages under Stochastic Operation date: 2009 words: 3535 flesch: 62 summary: Figure 2: The form of function φ(x,δ) depending on the initial amount of material x and parameter δ Fig. Figure 7: The probability of emptying storage ψ(x) as a function of initial amount of material In Fig. keywords: function; material; storage cache: hjic-233.pdf plain text: hjic-233.txt item: #265 of 680 id: hjic-234 author: Kasza, T.; Baladincz, P.; Hancsók, J. title: Production of Bio-Isoparaffins by Hydroisomerisation of Bioparaffins date: 2009 words: 3063 flesch: 50 summary: PÖLCZMANN GY., HANCSÓK J.: Investigation of production of gas oils with high isoparaffin content, Days of Chemical Engineering’09, Veszprém, 21- 23. The bio gas oil is a promising product that is a fuel with high isoparaffin content in the gas oil boiling range, which can be produced by the catalytic hydrogenation of different triglycerides. keywords: content; lshv; products; temperature cache: hjic-234.pdf plain text: hjic-234.txt item: #266 of 680 id: hjic-235 author: Tóth, Cs.; Baladincz, P.; Hancsók, J. title: Fuel Production from Triglycerides Containing Gas Oils date: 2009 words: 3206 flesch: 50 summary: To overcome these problems and to attain better quality, the alternative is the chemical conversion of triglyceride based feeds, mainly hydrocarbons rich in paraffins, which products can be utilized in Diesel- engines mixed with diesel gas oil or directly. The objective of our research work was to investigate the production of diesel fuel with excellent quality and/or of diesel fuel blending component by heterogeneous catalytic conversion of gas oil fraction containing 75% sunflower oil. keywords: diesel; figure; gas; oil; products; temperature; vegetable cache: hjic-235.pdf plain text: hjic-235.txt item: #267 of 680 id: hjic-236 author: Krár, M.; Kovács, S.; Boda, L.; Leveles, L.; Thernesz, A.; Wáhlné Horváth, I.; Hancsók, J. title: Fuel Purpose Hydrotreating of Vegetable Oil on NiMo/γ-Al2O3 Catalyst date: 2009 words: 3345 flesch: 48 summary: NAGY G., HANCSÓK J., VARGA Z., PÖLCZMANN GY., KALLÓ D.: Investigation of hydrodearomatization of prehydrogenated gas oil fractions on Pt-Pd/H-USY catalysts, Topics in Catalysis, (2007) 45, 195–201 Table 2: The applied analytical methods Properties Method Density EN ISO 12185:1996 Iodine number EN ISO 3961:2000 Acid number EN 14104:2003 Water content EN ISO 12937:2001 Hydrocarbon composition EN 15199-2:2007 Fatty acid composition EN ISO 5509:2000 EN 14103:2003 Results and discussion The main aim of the fuel purpose hydrotreating experiments of sunflower oil was – besides the saturation of double bonds – the removal of the oxygen atom from the sunflower oil and the production of the target fraction (primary C15-C18 n- and i-paraffins) in gas oil boiling range with the highest yield. keywords: bar; fraction; oil; paraffins; target; temperature; yield cache: hjic-236.pdf plain text: hjic-236.txt item: #268 of 680 id: hjic-237 author: Kopasz, Á.; Modla, G.; Láng, P. title: Product Composition Control of a New Batch Pressure Swing Rectifying System date: 2009 words: 2274 flesch: 55 summary: We got simlar results for the value of the minimal overall specific energy consumption in both cases (composition control, temperature control, which is applied most commonly in the industry). The goals of this paper: - to propose and study a simple control scheme with PID parameters (providing good quality of control) for the new configuration, - investigation of the influence of the liquid division ratio, - determination of optimal value of liquid division ratio (providing the prescribed separation with minimal specific energy consumption). keywords: batch; column; composition; control; division; liquid; ratio cache: hjic-237.pdf plain text: hjic-237.txt item: #269 of 680 id: hjic-238 author: Fülöp, A.; Hancsók, J. title: Comparison of Calibration Models Based on Near Infrared Spectroscopy Data for the Determination of Plant Oil Properties date: 2009 words: 1827 flesch: 48 summary: PLS model This approach is the most popular chemometric method for calibration model creation. 119-122 (2009) COMPARISON OF CALIBRATION MODELS BASED ON NEAR INFRARED SPECTROSCOPY DATA FOR THE DETERMINATION OF PLANT OIL PROPERTIES A. Fülöp, J. Hancsók University of Pannonia, Department of Hydrocarbon and Coal Processing P. O. Box 158., H-8201 Veszprém, Hungary, Phone: +3688624414, Fax:+3688624520 The aim of this study was to compare the prediction efficiency of different type of linear calibration models using near infrared (NIR) absorbance spectral data of vegetable oils. keywords: ann; model; oil; pca; validation cache: hjic-238.pdf plain text: hjic-238.txt item: #270 of 680 id: hjic-239 author: Hegedüs, I.; Nagy, E. title: Comparison of the Structure and the Stability of Single Enzyme Nanoparticles date: 2009 words: 4425 flesch: 46 summary: The first step is a modification of CK enzyme complex and its solubilization in a hydrophobic medium. In the case of CK enzyme complex during the solvatation process in hexane enzyme particles with size higher than 10 nm can not be detected. keywords: aot; aot aot; complex; ee ee; enzyme; layer; nanoparticles; polymer; sen cache: hjic-239.pdf plain text: hjic-239.txt item: #271 of 680 id: hjic-240 author: Baranyai, R.; Detrich, Á.; Volentiru, E.; Hórvölgyi, Z. title: Preparation and Characterization of ZnO and TiO2 Sol-Gel Thin Films Deposited by Dip Coating date: 2009 words: 4226 flesch: 50 summary: 136 REFERENCES 1 FERNANDES D. M., SILVA R., WINKLER HECHENLEITNER A. A., RADOVANOVIC E., CUSTÓDIO MELO M. A., GÓMEZ PINEDA E. A.: Synthesis and characterization of ZnO, CuO and a mixed Zn and Cu oxide, Materials Chemistry and Physics 115 (2009) 1, 110 2 IRIMPAN L., KRISHNAN B., NAMPOORI V. P. N., RADHAKRISHNAN P.: Nonlinear optical characteristics of nanocomposites of ZnO–TiO2–SiO2, Optical Materials 31 (2008) 2, 361 3 KURZ A., AEGERTER M. A.: Novel transparent conducting sol–gel oxide coatings, Thin Solid Films 516 (2008) 14, 4513 4 PÁL E., SEBŐK D., HORNOK V., DÉKÁNY I.: Structural, optical, and adsorption properties of ZnO2/poly(acrylic acid) hybrid thin porous films prepared by ionic strength controlled layer-by-layer method, Journal of Colloid and Interface Science 332 (2009) 1, 173 5 KÖNENKAMP R., WORD R. C., GODINEZ M.: Ultraviolet electroluminescence from ZnO/polymer heterojunction light-emitting diodes, Nano Letters 5 (2005) 10, 2005 6 GUO H., ZHOU J., LIN Z.: ZnO nanorod light- emitting diodes fabricated by electrochemical approaches, Electrochemistry Communications 10 (2008) 1, 146 7 MARTÍNEZ M. A., HERRERO J., GUITÉRREZ: Deposition of transparent and conductive Al- M. T. doped ZnO thin films for photovoltaic solar cell, Solar Energy Materials and Solar Cells 45 (1997) 1, 75 8 NÉMETH Á., MAJOR CS., FRIED M., LÁBADI Z., BÁRSONY I.: Spectroscopic ellipsometry study of transparent conductive ZnO layers for CIGS solar cell applications, Thin Solid Films 516 (2008) 20, 7016 9 KAY A., GRÄTZEL M.: Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder, Solar Energy Materials and Solar Cells 44 (1996) 1, 99 10 GRÄTZEL M.: 34 ARMELAO L., FABRIZIO M., GIALANELLA S., ZORDAN F.: Sol-gel synthesis and characterisation of ZnO-based nanosystems, Thin Solid Films 394 (2001) 12-13, 90 35 RATANA T., AMORNPITOKSUK P., RATANA T., SUWANBOON S.: The wide band gap of highly oriented nanocrystalline Al doped ZnO thin films from sol-gel dip coating, Journal of Alloys and Compounds 470 (2009) 1-2, 408 36 DUTTA M., MRIDHA S., BASAK D.: Effect of sol concentration on the properties of ZnO thin films prepared by sol–gel technique, Applied Surface Science 254 (2008) 9, 2743 37 TRAPALIS C., TODOROVA N., ANASTESCU M., ANASTESCU C., STOICA M., GARTNER M., ZAHARESCU M., STOICA T.: Atomic force microscopy study of TiO2 sol-gel films thermally treated under NH3 atmosphere, Thin Solid Films 517 (2009) 23, 6243 38 DEÁK A., HILD E., KOVÁCS A. L., HÓRVÖLGYI Z.: keywords: films; index; layers; sar; sol; thickness; thin; tio2; withdrawal; zno cache: hjic-240.pdf plain text: hjic-240.txt item: #272 of 680 id: hjic-241 author: Kasaš, M.; Kravanja, Z.; Novak Pintarič, Z. title: Differences between Optimum Flow Sheet Solutions Obtained by Different Economic Objective Functions date: 2009 words: 3003 flesch: 50 summary: I 0 10 20 30 40 50 60 70 80 b) 0 CF I Figure 1: Cash flow functions, a) unimodal, b) concave Unimodal cash flow functions Unimodal cash flow function is common for flow sheet modeling with simple and aggregated models at early stages of process development, e.g. by stoichiometric reactor with fixed conversion per pass or simple component splitter. NOVAK PINTARIČ University of Maribor, Faculty of Chemistry and Chemical Engineering Smetanova 17, SI 2000 Maribor, Slovenia E-mail: zorka.novak@uni-mb.si This paper discusses the shapes of cash flow functions obtained by modelling chemical processes at different levels of complexity, and the influence of these shapes on optimal solutions obtained by different economic objective functions. keywords: cash; flow; functions; investment; process; solutions cache: hjic-241.pdf plain text: hjic-241.txt item: #273 of 680 id: hjic-242 author: Leitold, A.; Gerzson, M. title: Structural Analysis of Process Models Using Their Representation Graph date: 2009 words: 4202 flesch: 54 summary: Dynamic representation graph The value of differential variables is usually computed by using a numerical integration method. Figure 1: Dynamic representation graph assuming first order explicit solution method The structural analysis based on graph theoretical technique is carried out in steps performed sequentially. keywords: differential; graph; index; model; representation; representation graph cache: hjic-242.pdf plain text: hjic-242.txt item: #274 of 680 id: hjic-243 author: Kis, P. B.; Mihálykó, Cs.; Lakatos, B. G. title: Mathematical Models for a Closed-Circuit Grinding date: 2009 words: 3933 flesch: 59 summary: If I denotes the total number of size fractions of particles and we introduce the notation hx = (xmax – xmin)/I, then xi = xmin + ihx stands for the ith particle size fraction. Therefore the greater value of the parameter c yields smaller mean particle size and dispersion of the particle size distribution. keywords: cut; grinding; mill; model; particles; size cache: hjic-243.pdf plain text: hjic-243.txt item: #275 of 680 id: hjic-244 author: Kovács, Z.; Fikar, M.; Czermak, P. title: Mathematical Modeling of Diafiltration date: 2009 words: 3741 flesch: 49 summary: The presented mathematical framework gives a rich representation of diafiltration processes due to the employment of concentration-dependent solute rejections. Further research effort is directed at the dynamic optimization of diafiltration processes. keywords: concentration; diafiltration; dilution; factor; mode; optimization; permeate; process; volume cache: hjic-244.pdf plain text: hjic-244.txt item: #276 of 680 id: hjic-245 author: Németh, A.; Nagy, G.; Sevella, B. title: New Results on the Field of “White Biotechnology” date: 2009 words: 2306 flesch: 42 summary: The efficiency of lactic acid fermentation is usually given with volumetric productivity (g lactic acid/L broth/hour). In this report we present a kinetic model built up on the basis of several batch lactic acid fermentations. keywords: acid; adobe; data; fermentation; g·l-1; model; product cache: hjic-245.pdf plain text: hjic-245.txt item: #277 of 680 id: hjic-250 author: Baladincz, P.; Tóth, Cs.; Hancsók, J. title: Expanding Feedstock Supplies of the Second Generation Bio-Fuels of Diesel-Engines date: 2010 words: 5360 flesch: 52 summary: Besides the examination of the reaction parameters (temperature: 360 °C, pressure: 80 bar, LHSV: 1.0 h-1 , H2/feedstock ratio: 600 Nm3/m3) which were found to be congenial for the catalytic conversion of vegetable oils for the conversion of the different, respectively lard or vegetable oil containing (0–10–20–30–50–100%) gas oil feedstocks we investigated the convertibility of the triglyceride part and the effect of the feedstock on the quality and the quantity of the product, furthermore the effect of the triglyceride in the feedstock on the desulphurisation, denitrification and dearomatisation. During our experimental work we examined the possibilities of the catalytic hydrogenation of mixtures of gas oil and lard or vegetable oil respectively, on NiMo/Al2O3 catalyst. keywords: bio; content; feedstock; fuels; gas; gas oil; lard; oil; sunflower; sunflower oil; triglyceride cache: hjic-250.pdf plain text: hjic-250.txt item: #278 of 680 id: hjic-251 author: Bocsi, R.; Horváth, G.; Hanák, L. title: Microalgae Production in Service of Fuel Production date: 2010 words: 4302 flesch: 47 summary: Algae oil production for fuel technology first mentioned in the 1980’s and lives its renessaince 21st century Algae production is the most promising solution amongst the alternatives because of its specific area necessity and high reproduction rate. keywords: algae; biomass; case; co2; composition; compounds; energy; extraction; microalgae; oil; organisms; parameters; production; species; use cache: hjic-251.pdf plain text: hjic-251.txt item: #279 of 680 id: hjic-252 author: Csom, V.; Szentmarjay, T.; Kovács, J.; Domokos, E. title: Study of Traffic-Related Urban PM Pollution at Different Locations date: 2010 words: 3135 flesch: 54 summary: Increased PM2.5 concentrations increase the risk of emergency hospital admissions for cardiovascular and respiratory causes; and PM10 affects respiratory morbidity, as indicated by hospital admissions for respiratory illness. In the last decade studies of the short-term effects of PM – based on association between daily changes in PM10 concentrations and various health outcomes – were conducted all over Europe. keywords: air; concentrations; measuring; pm10; pm2.5; traffic cache: hjic-252.pdf plain text: hjic-252.txt item: #280 of 680 id: hjic-253 author: Fodor, A.; Magyar, A.; Hangos, K. M. title: Parameter Sensitivity Analysis of a Synchronous Generator date: 2010 words: 3903 flesch: 51 summary: After the basic dynamical analysis, the set of model parameters is partitioned based on the model's sensitivity on them. Generator parameters Because the above developed model uses pseudo- parameters that are composed from the original physical ones, mathematical expressions are needed to describe how these parameters depend on the physical ones. keywords: generator; model; parameters; rotor; sensitivity; state; stator; ⎢ ⎢; ⎥ ⎥ cache: hjic-253.pdf plain text: hjic-253.txt item: #281 of 680 id: hjic-254 author: Görbe, P.; Magyar, A.; Hangos, K. M. title: Power Conditioning with Electric Car Battery Charging from Renewable Sources date: 2010 words: 3600 flesch: 45 summary: Upper harmonic components have many undesirable effects on power grid • Maximum power controller keywords: battery; controller; current; distortion; energy; grid; harmonic; inverter; mode; power; voltage cache: hjic-254.pdf plain text: hjic-254.txt item: #282 of 680 id: hjic-255 author: Horváth, B.; Szalai, I. title: A Nonlinear Dielectric Measurement Method for the Study of Complex Liquids date: 2010 words: 3966 flesch: 53 summary: Additional adjustable parameters are the following: the amplitude and the width of the rectangular high voltage pulse, the span of the vertical display in hertz, and the number of frequency measurements to average. High voltage pulse generator A PS350 DC high voltage power supply made by Stanford Research System serves as the base of the pulse generator. keywords: analyzer; cell; data; dielectric; frequency; measurement; oscillator; pulse; system; voltage cache: hjic-255.pdf plain text: hjic-255.txt item: #283 of 680 id: hjic-256 author: Kasza, T.; Hancsók, J. title: Production of Depressed Freezing Point Bio Gas Oil from Slaughter House Waste Lard date: 2010 words: 3515 flesch: 50 summary: The reason of this was that the carbeniumions generated on the surface of the catalyst during the isomerization, having lower stability than that of the saturated hydrocarbons, could be cracked more easily at higher temperature and at lower pressure. The reason of this was that at higher temperature the structural trans- formation of the mono-branched paraffins increased, so in consecutive reactions the possibility of the formation of multi-branching was higher. keywords: content; number; paraffins; pressure; products; temperature cache: hjic-256.pdf plain text: hjic-256.txt item: #284 of 680 id: hjic-257 author: Kovács, Zs.; Szalkay, Cs.; Zsilák, Z.; Rédey, Á. title: Comparison of Physical and Chemical Measurements of Séd Stream in Veszprém and Holt-Sebes-Körös together with Sebes-Körös in Békés date: 2010 words: 3819 flesch: 59 summary: The most significant purpose of the project is to define water quality of Séd and Holt-Sebes-Körös just as Sebes-Körös. At selection of the sampling sites the following direct pollution sources have been taken into consideration: 20 sampling site and 7 polluted locations were appointed along the stream that have strong effect to water quality. keywords: concentration; körös; o ut; séd; water cache: hjic-257.pdf plain text: hjic-257.txt item: #285 of 680 id: hjic-258 author: Kriván, E.; Marsi, G.; Hancsók, J. title: Investigation of the Oligomerization of Light Olefins on Ion Exchange Resin Catalyst date: 2010 words: 3776 flesch: 48 summary: During our experimental work we studied the possibilities of producing motor fuel blending components like these blending components with the oligomerization of the olefin content of light FCC-naphtha – assuming later industrial application – on Amberlyst-15 acidic ion exchange resin type catalyst. In the course of the experiments carried out with acidic ion exchange resin, we successfully produced preferable products at 100–110 °C temperature, 25–30 bar pressure and 0.5–1.0 h-1 liquid hourly space velocity (conversion of olefin was 90–92%, C12+ selectivity 24–30%). keywords: bar; catalyst; conversion; fcc; light; olefins; pressure; temperature cache: hjic-258.pdf plain text: hjic-258.txt item: #286 of 680 id: hjic-259 author: Nagy, S.; Szalai, I. title: Nonlinear Dielectric Effect of Two-Component Dipolar Fluids date: 2010 words: 2765 flesch: 52 summary: Linear dielectric permittivities with (m1 *)2 = 0 and (m2 *)2 = 1 62 Figure 2b: Nonlinear dielectric permittivities with (m1 *)2 = 0 and (m2 *)2 = 1 Figure 3a: Linear dielectric permittivities with (m1 *)2 = 0 and (m2 *)2 = 0.5 Figure 3b: Nonlinear dielectric permittivities with (m1 *)2 = 0 and (m2 *)2 = 0.5 Summary In the present study of the NDE for DHS mixtures, the following main results have been obtained: 1) From the electric field dependence of the polarization analytical equations have been obtained for the linear and the nonlinear dielectric constants of two- component DHS fluids. Nonlinear dielectric permittivities with (m1 *)2 = 0.5 and (m2 *) = 1 Figure 2a: keywords: component; dielectric; dipole; linear; permittivity; results cache: hjic-259.pdf plain text: hjic-259.txt item: #287 of 680 id: hjic-260 author: Speiser, F.; Magyar, I.; Enisz, K. title: Municipal Environmental-Monitoring System date: 2010 words: 3224 flesch: 37 summary: On the whole it can be stated that the system is suitable for collecting environmental data with specific low costs at minimal infrastructural build-up. Figure 1: System components and connections The portal consists of two main modules: the starting page gives general information and a menu-system grouping environmental data regarding the specified area of the municipality. keywords: air; data; environmental; information; measurements; monitoring; parameters; quality; system cache: hjic-260.pdf plain text: hjic-260.txt item: #288 of 680 id: hjic-261 author: Szentes, A.; Horváth, G.; Varga, Cs. title: Mechanical Properties of Polypropylene/Multi Walled Carbon Nanotube Composites date: 2010 words: 3101 flesch: 53 summary: wt% multi walled carbon nanotubes (MWCTN). Keywords: carbon nanotubes, polypropilene, composites, mechanical properties Introduction Carbon nanotubes (CNTs) were discovered in the soot of arch discharge by Sumio Iijima in 1991 keywords: black; carbon; composites; extruder; mwcnt; screw; screw extruder cache: hjic-261.pdf plain text: hjic-261.txt item: #289 of 680 id: hjic-262 author: Szoboszlai, Zs.; Hancsók, J. title: Investigation of Isomerization of Sulphur Containing Hexane Fractions date: 2010 words: 4689 flesch: 43 summary: The scientific articles and papers did not concerned with the long term effect of sulphur species on isomerization activity, the effects with higher sulphur concentration than the real industrial feedstock was investigated and after the deactivation they do not give any further information that the feedstock quality (distillation properties, hydrocarbon composition, heteroatom content) how influenced long term activity of the catalyst, additionally the economy and safety operation of the technology. SZOBOSZLAI , J. HANCSÓK Department of MOL Hydrocarbon and Coal Processing, University of Pannonia 8200, Veszprém Egyetem u. 10, HUNGARY, E-mail: szzsolt@almos.uni-pannon.hu The main activations of gasoline R&D activities simultaneously the stricter environmental requirements and quality specifications based on increased activity catalysts which saving more energy and feedstock. keywords: activity; case; catalysts; concentration; content; isomerization; sulphur cache: hjic-262.pdf plain text: hjic-262.txt item: #290 of 680 id: hjic-279 author: Antal, D. title: Motion Simulation of a Path Controlled Vehicle date: 2010 words: 2745 flesch: 47 summary: By the use of such vehicles, one can decrease the expenditure of the production cost and increase the operational efficiency and its reliability. In addition to logistics wide range of applications of such vehicles can be found e.g., scanning on a minefield or mowing the lawn automatically. keywords: control; distance; methods; model; motor; path; position; vehicle cache: hjic-279.pdf plain text: hjic-279.txt item: #291 of 680 id: hjic-280 author: Bárkányi, Á.; Lakatos, B. G.; Németh, S. title: Modelling of Polymer Particle Formation Using Population Balance Model date: 2010 words: 3945 flesch: 52 summary: t=1.3e3 sec t=3.8e3 sec t=7e3 sec t=1.1e4 sec t=1.5e4 sec t=1.8e4 sec t=1.9e4 sec t=2.1e4 sec t=2.3e4 sec Figure 7: Primary particle size distribution 0 1 2 x 10-40 1 2 x 104 0 2 4 6 8 x 10-17 diameter of particle (m) time (s) fu nc tio n va lu e Figure 8: Primary particle size distribution (3D) Figs 7 and 8 show the primary particle size distribution. The morphology of the PVC grains is depended on the properties of primary particles. keywords: aggregation; distribution; moment; monomer; order; particles; phase; polymerization; rate; size cache: hjic-280.pdf plain text: hjic-280.txt item: #292 of 680 id: hjic-281 author: Bodzás, S.; Dudás, I. title: Designing of Smoother Hob date: 2010 words: 3011 flesch: 60 summary: Its reason is the mn normal module is normed for cylindrical gear hobs, while the max axial module is normed for worm gear hobs. Keywords: module, hob, production geometry Introduction If we give expanded one direction, turning motion for the indented bar shape tool without alternation, plane or chisel motion such we imagine the suitable lengthly indented bar of spreading out of the diameter along wide sloping thread line to spring to a cylinder surface (in production) and the threads defined, equal distance breaking, we create hob edges then the hob creates. keywords: angle; cog; hob; hobs; production; worm cache: hjic-281.pdf plain text: hjic-281.txt item: #293 of 680 id: hjic-282 author: Ferenczi, I. title: Relationship between Input Channel Excitation Time and Profinet IO Refresh Time date: 2010 words: 3230 flesch: 54 summary: Keywords: Profinet IO, cycle time, real-time, refresh time, PLC, IO device, IO channel, delay time, communication Introduction Profinet IO permits direct interfacing of distributed field devices on the Ethernet. The log file of the IO controller did not register a single collision or bad frame, albeit only a minimal Profinet IO configuration (controller, IO device and IO supervisor) were part of the network. keywords: channel; data; device; input; profinet; refresh; time cache: hjic-282.pdf plain text: hjic-282.txt item: #294 of 680 id: hjic-283 author: Horváth, R.; Palásti-Kovács, B.; Sipos, S. title: Environmental-Friendly Cutting of Automotive Parts Made of Aluminium Castings date: 2010 words: 4094 flesch: 47 summary: Figure 2: Surface roughness under high speed cutting conditions Cutting conditions: vc = 1000–2000 m/min; rε = 0.4 mm An important factor, to be considered during the design of the insert, is the nose radius, its increase affects favourably the surface roughness. Due to space limitations it is not possible to analyse the tool edge quality (surface roughness values on the rake face and flank land of the inserts, roughness of main cutting edge, edge sharpness, edge radius etc.) a) different nose radii (rε = 0.4 and 0.8 mm) b) different versions of rake face Figure 3: Surface roughness vs. insert geometry Cutting conditions: vc = 1400 m/min a) maximum heights of profile b) profile kurtosis Figure 4: Surface roughness versus relief angle The effect of the tool material The first material, coming into question, is the poly- crystalline diamond (PCD): it has anti-adhesion characteristics, chemical inertness, compared to cemented carbide better abrasive wear resistance and low friction coefficient. keywords: case; cutting; diamond; edge; insert; profile; roughness; surface; tests; tool; values cache: hjic-283.pdf plain text: hjic-283.txt item: #295 of 680 id: hjic-284 author: Lukács, M. title: State of Process Developments and Trends in Hard Gear Finishing date: 2010 words: 4168 flesch: 50 summary: The examination of process combination The main goal is to increase productivity and benefit from the advantages of the two specific hard finishing processes, while avoiding their disacvantages; for this end, several types of process combinations are applied in the industry. The most common machine tool control system applied in generating grinding machines is the Siemens 840D, which includes its own complex generating grinding software, which can significantly ease machine tool programming. keywords: finishing; gear; grinding; machine; pitch; process; processes; profile; tool; wheel; worm cache: hjic-284.pdf plain text: hjic-284.txt item: #296 of 680 id: hjic-285 author: Horváth, T.; Tamásová, A. title: Designing and Manufacturing a Goalie Mask date: 2010 words: 2537 flesch: 54 summary: Figure 3: The modern goalie mask and its parts Designing the new shapes We were inspired by goalies masks used in NHL. Figure 8: Reinforced chin and forehead with carbon-kevlar and the last layer of resin Making the backplate model Ice hockey goalie mask consists of two parts. keywords: form; goalie; mask; materials; model; prototype; surface cache: hjic-285.pdf plain text: hjic-285.txt item: #297 of 680 id: hjic-286 author: Molnos, É.; Nyilasi, A.; Rákhely, G.; Muntean, O.; Kovács, K. L. title: Photofermentative Production of Hydrogen by Thiocapsa Roseopersicina from Simple Organic Substrates date: 2010 words: 3258 flesch: 48 summary: In the present study, H2 production by the Hox1 soluble hydrogenase and the nitrogenase were investigated. The nitrogenase based H2 production in purple non-sulphur bacteria is the major field of research keywords: culture; growth; hox1; hydrogenase; nitrogenase; production; pyruvate cache: hjic-286.pdf plain text: hjic-286.txt item: #298 of 680 id: hjic-287 author: Monostori, R.; Dudás, I. title: The Application of Probability Theory for Drilling date: 2010 words: 2939 flesch: 50 summary: Drilling Through hole drilling is the procedure when we make a hole into a standing or rotating brief workpiece. The definition of the position of holes It is possible to determine the position of the holes in many ways. keywords: axis; boring; drill; figure; hole; position; workpiece cache: hjic-287.pdf plain text: hjic-287.txt item: #299 of 680 id: hjic-288 author: Nagy, L.; Jakab, E. title: Developement of New Technical Solution for Starter Motors for Passenger Cars date: 2010 words: 4645 flesch: 52 summary: Sub-functions SFB21 and SFB22 were removed in working with the solution principles, however, they are necessary in the analysis, therefore the number of possible theoretical solutions is 130 2242842TSM =⋅⋅= , which can be divided into three different groups: ● Device controlled from a hydraulic supply unit (A2 branch): 961242T 2SMA =⋅⋅= theoretical solutions. The number of possible theoretical solutions is given according to the following relation: 2621444SSSSSSSSST 9 12FE11FEFDFC22FB21FB12FB11FBFAS keywords: combustion; connection; design; device; energy; fig; functions; number; requirements; solutions; starting; sub; task cache: hjic-288.pdf plain text: hjic-288.txt item: #300 of 680 id: hjic-289 author: Ráczkövi, L. title: Tool Life of Cutting Tool in Case of Hard Turning date: 2010 words: 2660 flesch: 54 summary: This equation is called the simple Taylor equation, differentiated from its later, improved version, which also reflects the effect feed-rate and the depth of cut plays on tool life. The experiments designed to determine tool life were accomplished using PCBN tool with different cutting speeds and values of federating and depth of cutting. keywords: cutting; life; speed; tool; values cache: hjic-289.pdf plain text: hjic-289.txt item: #301 of 680 id: hjic-290 author: Rádi, Gy.; Varga, T.; Chován, T. title: Development of CFD Based Mathematical Models to Study Heterocatalytic Systems date: 2010 words: 3287 flesch: 42 summary: The pellet by pellet model is working as a network of pellet models. Different ways for aggregating pellet models were compared and evaluated applying COMSOL Multiphysics [1]. keywords: bed; catalyst; comsol; fig; flow; gas; model; pellet; phase; reactor cache: hjic-290.pdf plain text: hjic-290.txt item: #302 of 680 id: hjic-291 author: Pethő-Rippel, D.; Horváth, G. title: The Examination of the Boundary Layer Formed on the Nickel Electrode/Solution Interface in the Boundary Layer Separation Method in Plastic Industrial Wastewaters date: 2010 words: 4317 flesch: 55 summary: It is concluded that it is pointless to exceed the relative velocity of 25 cm/s in the case of nickel pastille electrodes and 10 cm/s in the case of nickelized nickel electrodes. d ec re as e (% ) nickelized nickel electrode nickel pastille elctrode Figure 8: Reduced transfer decrease with nickelized nickel and nickel pastille electrodes The experiments prove that the decrease in reduced transport increases with the increasing flow rates, its extent reaching 100% with nickelized nickel electrodes at 10 cm/s; and at 30 cm/s with nickel pastille electrodes. keywords: anode; electrodes; flow; layer; nickel; pastille; potential; rate; surface cache: hjic-291.pdf plain text: hjic-291.txt item: #303 of 680 id: hjic-292 author: Hornyák, O.; Sáfrány, G. title: Models and Methods to Detect Similarity of Manufacturing Machines date: 2010 words: 3470 flesch: 47 summary: Group technology for automated generation of machine controller code. 2 refers to the process in which new manufacture machine controller software can be automatically generated. keywords: code; controller; function; group; machines; manufacturing; project; software; ⎢ ⎢; ⎥ ⎥ cache: hjic-292.pdf plain text: hjic-292.txt item: #304 of 680 id: hjic-293 author: Simon, B.; Tamaska, L.; Kováts, N. title: Analysis of Global and Local Environmental Impacts of Bus Transport by LCA Methodologies date: 2010 words: 3111 flesch: 53 summary: Primary aim of this present study is to estimate environmental impacts of air emissions caused by bus transport and to serve as an important basis for a decision-making process being necessary for achieving changes. Several studies have been already published for estimating emissions and environmental impact, which results have been incorporated in this present study keywords: biodiesel; buses; emissions; euro; fuel; hydrogen; impact; production; transport; types cache: hjic-293.pdf plain text: hjic-293.txt item: #305 of 680 id: hjic-294 author: Somogyi, V.; Domokos, E.; Rédey, Á. title: Simulation of a Secondary Settler Based on Sedimentation Curves date: 2010 words: 3270 flesch: 48 summary: False settler values deteriorate the results of the whole model of the wastewater treatment plant. Table 1: Sets of measurement data used for the experiment Sludge concentration Aerobic tank Top of the settler Bottom of the settler Flow Excess sludge removal g/m3 g/m3 g/m3 m3/day m3/day 1. set 4316 8 9000 7030 200 2. set 5039 12 7900 6954 250 3. set 3892 8 6600 6993 250 Preparation for modeling Samples from the last section of the aerated tank were taken for three different occasions in order to receive different suspended solids concentrations. keywords: concentration; model; results; settler; settling; solids; velocity; wastewater cache: hjic-294.pdf plain text: hjic-294.txt item: #306 of 680 id: hjic-295 author: Szabó, G. title: Research of the Mechanism of Plastic Strain in Case of Tempered Steel in Hard Turning date: 2010 words: 2696 flesch: 54 summary: In the paper the change of the morphology of chip formation is compared depending on the cutting speed. 'Y ’ Y Figure 2: A supposed mechanism of chip formation in hard turning [3] 164 While the tool reaches point A from B’, there is a thermal tempering for a while in interval BD, later this interval gets back to its original strength and along the BE interval it bonds into the direction of the flank of the tool. keywords: chip; cutting; formation; turning cache: hjic-295.pdf plain text: hjic-295.txt item: #307 of 680 id: hjic-296 author: Szakács, K. title: Research of Roughness of Hard Turned Bores date: 2010 words: 1943 flesch: 45 summary: Hard turning has been applied in many cases such as producing bearings, gears, axles and other mechanical components. Based on the experimental results, this paper shows and analyse the modification of the surface roughness parameters in case of hard turning and combination machining[1]. keywords: cutting; grinding; machining; roughness; surface; tool; turning cache: hjic-296.pdf plain text: hjic-296.txt item: #308 of 680 id: hjic-297 author: Meiczinger, M.; Marton, Gy. title: The Production and Investigation of Starch Based Slow Released Encapsulating Agents date: 2010 words: 3056 flesch: 57 summary: In this paper we present our experiences about dissolution of the zinc and copper in different pH. Keywords: slow release, encapsulating agent, starch derivatives Introduction For many years our research group deals with the improvement of starch derivatives, which are able to slow release of micro components as fertilizers. Through the modification of starch, we replaced some of its OH groups in the anhydroglucose monomer unit by the ionic groups of phosphate with chemical reaction. keywords: day; dissolution; starch cache: hjic-297.pdf plain text: hjic-297.txt item: #309 of 680 id: hjic-298 author: Szentgyörgyi, E.; Bélafi-Bakó, K. title: Anaerobic Membrane Bioreactors date: 2010 words: 3737 flesch: 40 summary: The MBR book, Elsevier, Oxford (2006). 5. B. Q. LIAO, J. T. KRAEMES, D. M. BAGLEY: Anaerobic membrane bioreactors: Applications and research directions, Critical Reviews in Environmental Science and Technology, 36, 2006, 489–530. 6. L. VAN DIJK, G. C. G. RONCKEN: Membrane bioreactors for wastewater treatment: The state of the art and new developments, Water Science and Technology, 35, 1997, 35. 7. K. H. CHOO, I. J. KANG, S. H. YOON, H. PARK, J. H. KIM, S. ADIYA, C. H. LEE: Approaches to membrane fouling control in anaerobic membrane bioreactors, Water Science and Technology, 41, 2000, 363–371. 8. STOWA: pp. 181-185 (2010) ANAEROBIC MEMBRANE BIOREACTORS E. SZENTGYÖRGYI , K. BÉLAFI-BAKÓ Research Institute of Chemical and Process Engineering, University of Pannonia Egyetem u. 10, Veszprém, HUNGARY E-mail: szentgyorgyi@almos.uni-pannon.hu The aim of this work was to give a general overview on the type and behaviour of anaerobic membrane bioreactors, which are intensively studied for waste water treatment processes. keywords: anaerobic; biomass; cake; conditions; flux; formation; mbrs; membrane; sludge; treatment; wastewater cache: hjic-298.pdf plain text: hjic-298.txt item: #310 of 680 id: hjic-299 author: Szőke, I.; Majdik, A.; Lupea, D.; Tamás, L.; Lazea, Gh. title: Autonomous Mapping in Polluted Environments date: 2010 words: 3703 flesch: 50 summary: 9. C. LAUGIER, R. CHATILA: Autonomous Navigation in Dynamic Environments, Springer tracts in Advanced Robotics, 35, 2007. 10. A. LILIENTHAL, A. LOUTFI, T. DUCKETT: Airborne chemical sensing with mobile robots, Sensors, 2006. 11. D. MARTINEZ, O. ROCHEL, E. HUGHES: Environmental monitoring with mobile robots, Conference on Intelligent Robots and Systems, IROS 2005. 15. keywords: algorithm; data; environment; feature; image; map; mapping; point; robot; system cache: hjic-299.pdf plain text: hjic-299.txt item: #311 of 680 id: hjic-300 author: Tóth, G. N.; Berek, L. title: Risk Methods and Chance of Practices date: 2010 words: 2490 flesch: 41 summary: Keywords: Risk methods, risk management software Introduction Many forces are obliging safety design; legal requirements, quality, costs, market and international influences, competition, the desire to have knowledge and the costs of retraining engineers. I examined one of the most general software, Risk optimizer 5.5, which enables to prepare risk assessment. keywords: analysis; assessment; management; methods; process; risk; tree cache: hjic-300.pdf plain text: hjic-300.txt item: #312 of 680 id: hjic-301 author: Szabó, P. J.; Varga, P. title: Mechanical and Thermal Treatments Influencing the Grain Boundary Character Distribution date: 2010 words: 2753 flesch: 44 summary: But these kinds of circumstances cannot be put into practice, and even at very low friction coefficient values the strain field remains nearly homogeneous only at low strain values. At a high friction coefficient value (m = 0.8) besides the big differences in the values of effective strain, its nearly linear change can be observed at zero height value (z = 0). keywords: field; friction; grain; specimen; strain; temperature; values cache: hjic-301.pdf plain text: hjic-301.txt item: #313 of 680 id: hjic-302 author: Drégelyi-Kiss, Á.; Gimesi, L.; Homoródi, R.; Hufnagel, L. title: Examination the Interaction between the Composition of a Theoretical Ecosystem and the Increase in the Atmospherical CO2 Level date: 2010 words: 3628 flesch: 48 summary: Keywords: theoretical ecosystem, feedback, climate modelling, climate change, control Introduction and aims The latest IPCC report [8] points out that a rise of 1.5–2.5 °C in global average temperature makes important changes in the structure and the working of ecosystems, primarily with negative consequences towards the biodiversity and goods and services of the ecological systems (e.g. [1, 3, 13, 17]). There is a continuous cycle and flow of inorganic compounds between the atmosphere and the ecosystems, therefore the anthropogenic affects (such as CO2 emission) strongly modify the activities of ecosystems. keywords: case; climate; co2; data; earth; ecosystem; effect; feedback; research; temperature cache: hjic-302.pdf plain text: hjic-302.txt item: #314 of 680 id: hjic-303 author: Fodor, D.; Medve, H.; Szalay, I.; Kulcsár, T. title: Sensorless Rotor Position Detection of PMSM for Automotive Application date: 2010 words: 2866 flesch: 47 summary: A novel method of detecting for rotor position of a sensorless brushless DC motor, ICEMS. The construction of permanent magnet synchronous motors yields the advantages mentioned above but they do not have only bright side. keywords: flux; magnet; model; phase; position; reluctance; rotor; sensorless; voltage cache: hjic-303.pdf plain text: hjic-303.txt item: #315 of 680 id: hjic-304 author: Barányi, I. title: Power Spectral Density (PSD) Analysis of Machined Surfaces date: 2010 words: 2157 flesch: 42 summary: The theoretical base of 3D PSD analysis was [2] and [5]. POWER SPECTRAL DENSITY (PSD) ANALYSIS OF MACHINED SURFACES I. BARÁNYI Donát Bánki Faculty of Mechanical Engineering and Safety Technology, Óbuda University 1081 Budapest, Népszínház u. 8., HUNGARY E-mail: baranyi.istvan@bgk.uni-obuda.hu In the first half of the 90s, computers of adequate speed of operation and processing softwares became increasingly available, made it possible to realize 3D surface characterisation. keywords: analysis; dimension; direction; fig; profile; psd; surface cache: hjic-304.pdf plain text: hjic-304.txt item: #316 of 680 id: hjic-305 author: Lénárt, J. title: High-Tech Boat date: 2010 words: 2212 flesch: 50 summary: /SVE /TUR /UKR /ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing. (Za stvaranje Adobe PDF dokumenata najpogodnijih za visokokvalitetni ispis prije tiskanja koristite ove postavke. keywords: adobe; boat; computer; control; i2c; interface; motors cache: hjic-305.pdf plain text: hjic-305.txt item: #317 of 680 id: hjic-306 author: Sztankovics, I. title: Automatic Robotic Assembly System in the Service of the Vehicle Industry and the Environment date: 2010 words: 2697 flesch: 49 summary: BOSCH SR 450 SCARA type assembly robot - DESOUTTER automated screwdriver - feeding system - construction capable of switching tools - tool magazine for 3 tools c) POLY-P 42 SCARA type assembly robot - pneumatic cracking machine, d) central computer Figure 1: Sketch of the assembly system 221 Presentation of a Robot in the System The most important element of the system is the BOSCH SR SCARA 450 type robot. It has a testing opportunity with or without robot motion. keywords: assembly; kundrák; operations; papp; proc; production; robot; system cache: hjic-306.pdf plain text: hjic-306.txt item: #318 of 680 id: hjic-307 author: Bányai, K.; Mándy, Z.; Dudás, I. title: Two Special Cases of the Holonic Manufacturing System date: 2010 words: 2652 flesch: 43 summary: The structures and principles The holonic manufacturing system (HMS) is built up from three elemental holons: an order holon, product holon and a source holon. A holon is an autonomous, co-operative and intelligent entity able to collaborate with other holons to process tasks. keywords: autonomy; hms; holon; information; machine; manufacturing; system cache: hjic-307.pdf plain text: hjic-307.txt item: #319 of 680 id: hjic-309 author: Thury, P.; Bartha, L.; Gulyás, G.; Pitás, V.; Fazekas, B.; Kárpáti, Á. title: Improvement of Biofilm Carriers for the Treatment of Automotive Industry Wastewater date: 2012 words: 1906 flesch: 46 summary: Based on the results, it can be stated that the suggested advantageous characteristics of CNTs do not appear as it is mixed in the plastic raw material during the production of biofilm carriers. The absence of the significant difference observed between the examined carriers suggests that the production of biofilm carriers from recycled plastic could carry financial advantages compared to the control carrier. keywords: biofilm; carriers; cod; removal; wastewater cache: hjic-309.pdf plain text: hjic-309.txt item: #320 of 680 id: hjic-310 author: Hodai, Z.; Horváth, G.; Hanák, L.; Bocsi, R. title: Separation Methods in the Algae Technology date: 2012 words: 2556 flesch: 43 summary: The following 40 dm3 of algae suspension was densified according to the procedure given above and coded UF2. During the experiments, the freshly harvested and still reproducing algae mixtures exhibited excellent flocculation and appropriate (average) speed of sedimentation (6×10-3 m/s). keywords: algae; dm3; experiments; flocculation; membrane; microalgae; permeate; suspension cache: hjic-310.pdf plain text: hjic-310.txt item: #321 of 680 id: hjic-311 author: Banhidi, O. title: Determination of Phosphorous, Suplhur, and Silicon Content of Low-alloyed and Unalloyed Steel by Icp-aes After a Unified Wet Chemical Sample Preparation Procedure date: 2012 words: 2995 flesch: 57 summary: Regarding the sample preparation methods, most procedures suggested for sample preparation dissolve the steel sample in hydrochloric acid [3]. Although the methods based on dissolution of the solid samples may have several drawbacks – such as much time may be necessary to dissolve the sample, sample losses may occur, or the sample may be contaminated either from the dishware or from the chemicals, etc. –, the methods using wet chemical sample preparation have some definite advantages: almost any kind of sample can be used and normally there is no need to have many special certified reference materials to perform the calibration. keywords: calibration; preparation; sample; table cache: hjic-311.pdf plain text: hjic-311.txt item: #322 of 680 id: hjic-312 author: Bocsi, R.; Hanák, L.; Horváth, G.; Hodai, Z.; Rippel-Pethő, D.; Szabó-Ravasz, B.; Szokonya, L.; Takács, Gy. title: Algae Cultivation for Energetic Purposes, Research on Algae Technolgy at the University of Pannonia date: 2012 words: 2167 flesch: 45 summary: Our first objectives were algae cultivation for energetic purposes in addition to carbon-dioxide capture. We have studied the technology of algae cultivation and processing at the Department of Chemical Engineering at the University of Pannonia. keywords: algae; concentration; cultivation; extraction; nutrient; processing; suspension cache: hjic-312.pdf plain text: hjic-312.txt item: #323 of 680 id: hjic-313 author: Táncsics, F.; Halbritter, E. title: Pvd Coating and Up-to-date Wear Test of Hot-Forming Tools date: 2012 words: 3180 flesch: 58 summary: On the basis of the largest diameter of the barreling work-piece, the approximating value of friction coefficient was determined and wear depth was numerically calculated. Experimental determination of friction coefficient During actual forming, in Rába’s forging plant, under production conditions 10 cylindrical specimens were upset between newly machined parallel pressure plates with surface roughness of Ra = 0.25. keywords: coefficient; figure; friction; piece; pressure; wear; work cache: hjic-313.pdf plain text: hjic-313.txt item: #324 of 680 id: hjic-314 author: Kasza, T.; Tóth, Cs.; Hancsók, J. title: Application of Improved Bio-Paraffins in Diesel Fuels date: 2012 words: 5278 flesch: 58 summary: 25–31 (2012) APPLICATION OF IMPROVED BIO-PARAFFINS IN DIESEL FUELS T. KASZA1, CS. TÓTH2, J. HANCSÓK2 1MOL Hungarian Oil and Gas Plc., Százhalombatta, HUNGARY 2University of Pannonia, MOL Department of Hydrocarbon and Coal Processing, 10 Egyetem Str., Veszprém, HUNGARY E-mail: hancsokj@almos.uni-pannon.hu Bio-paraffin containing mixtures produced from different natural triglycerides (conventional and improved vegetable oils, used cooking oils and fats, etc.) have high cetane number (95-105 units), but their freezing points are high (between +15 and +32°C). Investigation of the production of high cetane number bio gas oil from pre-hydrogenated vegetable oils over Pt/HZSM- 22/Al2O3, Microporous and Mesoporous Materials, 101 (2007) pp. keywords: cetane; content; diesel; number; oil; paraffins; production; products cache: hjic-314.pdf plain text: hjic-314.txt item: #325 of 680 id: hjic-315 author: Vazid, A.; Urvashi, V.; Jyotsna, K.; Alhadi Faroun, S. A.; Mohd, I. title: Synthesis, Physico-Chemical Properties, and Spectroscopic Characterization of Phenolic Modified Castor Oil Based Polyol date: 2012 words: 3230 flesch: 50 summary: In the second and third set, castor oil and phenolic resin concentration were kept constant in all the three prepared polyol samples with varying concentrations of diethylene glycol and diethanolamine as shown in Table 1. In the present study, castor oil has been modified with blending phenolic resin and reacted with diethanolamine (DEA) and diethyleneglycol (DEG) to synthesize the polyol. keywords: ch3; coefficient; dea; deg; oil; phenolic; polyol; properties; resin cache: hjic-315.pdf plain text: hjic-315.txt item: #326 of 680 id: hjic-316 author: Csanádi, Z.; Kurdi, R.; Bélafi-Bakó, K. title: Ethyl-Acetate Synthesis in Gas Phase by Immobilised Lipase date: 2012 words: 3497 flesch: 45 summary: Therefore, it can be stated that the studied enzyme catalyzed esterification reaction can be carried out more easily and efficiently in gas phase than it other reaction media due to the much more effective mass transfer, low viscosities, and high diffusion coefficients in the gas phase. Structured fiber supports for gas phase biocatalysis, Enzyme and Microbial Technology, 36 (2005) pp. keywords: acetate; acid; enzyme; ethyl; gas; phase; reaction; substrate; temperature cache: hjic-316.pdf plain text: hjic-316.txt item: #327 of 680 id: hjic-317 author: Baladincz, P.; Ludányi, A.; Leveles, L.; Hancsók, J. title: Production of Gas Oil Components from Waste Fats date: 2012 words: 5093 flesch: 56 summary: Hence, during the experimental work, our aim was to investigate the possibilities of the production of bio gas oil and bio gas oil containing gas oils on waste fat basis via the hydroconversion of waste rancid lard itself and as a 50% mixture with gas oils. Experimental During the experimental work our aim was to investigate the possibilities of bio gas oil and bio gas oil containing gas oils on waste fat basis via the hydroconversion of waste rancid lard in itself and as a 50% mixture with gas oils. keywords: bar; bio; catalyst; como; feedstock; gas; lard; lhsv; oil; product cache: hjic-317.pdf plain text: hjic-317.txt item: #328 of 680 id: hjic-318 author: Bélafi-Bakó, K.; Boór, A.; Nemestóthy, N. title: Comparative Study on Concentration of Juices from Colourful Wild Berry Fruits by Membrane Osmotic Distillation date: 2012 words: 1670 flesch: 54 summary: 53–56 (2012) COMPARATIVE STUDY ON CONCENTRATION OF JUICES FROM COLOURFUL WILD BERRY FRUITS BY MEMBRANE OSMOTIC DISTILLATION K. BÉLAFI-BAKÓ , A. BOÓR, N. NEMESTÓTHY University of Pannonia, Research Institute on Bioengineering, Membrane Technology and Energetics 10 Egyetem Str., 8200 Veszprém, HUNGARY E-mail: bako@almos.uni-pannon.hu Concentration of fruit juices by membrane osmotic distillation (MOD) was studied. 119–123 4. K. BÉLAFI-BAKÓ, B. KOROKNAI: Enhanced flux in fruit juice concentration: coupled operation of osmotic evaporation and membrane distillation, Journal of Membrane Science, 269 (2006) pp. keywords: concentration; figure; fruit; juices; membrane; process cache: hjic-318.pdf plain text: hjic-318.txt item: #329 of 680 id: hjic-319 author: Lakatos, I.; Nagy, V.; Kőrös, P.; Orbán, T. title: Computer Aided Modelling of Hybrid Mini Van date: 2012 words: 2309 flesch: 49 summary: Electric drive system and all vehicle control components (power electronics for e-motors, battery management system, etc.) were developed at the Széchenyi István University. A completely new data bus had to be constructed connecting to the existing CAN-BUS network to control the units of electric drive system (Ford data bus, power steering, e-motor bus). keywords: drive; electric; figure; model; power; software; system; vehicle cache: hjic-319.pdf plain text: hjic-319.txt item: #330 of 680 id: hjic-342 author: , title: Downloadable Full Issue date: 2022 words: 46143 flesch: 54 summary: Input-output event sequences Operational procedures in process systems are detailed list of instructions for the plant operator personnel to 60 perform certain operations on the plant. Component based structural decomposition The above mentioned fault diagnosis based on the P- HAZID analysis is only developed for process systems 61 Table 1: A simple example of a P-HAZID table. keywords: activity; algorithm; analysis; capacitor; case; chemical; component; control; data; data reconciliation; energy; engineering; example; fault; figure; flatness; function; gas; graph; hungary; industrial; industry; injection; input; journal; level; line; manufacturing; matrix; measurement; method; model; number; occurrence; operation; order; output; parameters; place; power; probability; problem; process; process control; process data; process system; processes; production; reconciliation; research; resource; results; second; set; solution; state; system; table; tank; temperature; time; university; values; variables; vehicle; velocity; veszprém cache: hjic-342.pdf plain text: hjic-342.txt item: #331 of 680 id: hjic-343 author: Bélafi-Bakó, K.; Molnár, E.; Csanádi, Z.; Nemestóthy, N. title: Comparative Study on Electrodialysis Systems for Galacturonic Acid Recovery date: 2012 words: 1579 flesch: 46 summary: Table 1: Parameters of the two-step ED system for galacturonic acid recovery and desalination Features of the modules Conventional asymmetric ED Combined with BP membrane Membranes 3 cation selective, 2 anion selective 2 cation selective, 1 bipolar Membrane surface area 0.0225 m2 0.0135 m2 Volumes of solutions feed (diluate): 100 ml, concentrate: 150 ml feed (acid): 100 ml, alkali: 150 ml Recirculation rate 32 ml/min 32 ml/min Electrode solution 200 ml 0.5 mol/l Na2SO4 200 ml 0.5 mol/l Na2SO4 Recirculation rate 60 ml/min 60 ml/min Applied voltage 5 V 5 V Processes galacturonate anions and Na cations pass through the membranes to accumulate in the concentrate galacturonate anions remain, BP provides H+, acid formation Na cations pass through the membranes, form alkali solution Final results concentrate rich in Na-galacturonate formation of galacturonic acid and NaOH solutions Table 2: Parameters of the scaled-up complex ED system Features of the module Scaled-up complex module Membranes 10 anion selective, 11 cation selective, 10 bipolar Membrane surface area 0.31 m2 Volumes of solutions feed (diluate): 400 ml, acid: 400 ml, alkali: 450 ml Recirculation rate 380 ml/min Electrode solution 500 ml 0.1 mol/l Na2SO4 Recirculation rate 500 ml/min Applied voltage 36 V Processes both galacturonic anions and Na cations pass through the membrane, formation of acid and alkali solutions Final results recovery and desalination of galacturonic acid in one step Results As a summary, we concluded that electrodialysis is a suitable method for recovery, desalination and purification of galacturonic acid from hydrolysates of various pectins. keywords: acid; membrane; solution cache: hjic-343.pdf plain text: hjic-343.txt item: #332 of 680 id: hjic-344 author: Varga, Cs.; Tóth, B.; Gergó, P.; Bartha, L. title: Effect of a New Type of Coupling Agent on The Mechanical Properties of Various Multi-Walled Carbon Nanotube/Rubber Composites date: 2012 words: 4293 flesch: 63 summary: Application of carbon nanotubes (CNT) may represent a breakthrough in rubber matrices either but only small quantities have been introduced because of their relatively high price. If mechanical properties of rubber composites can be improved to a large extent enough then the cost reduction can become less important. keywords: composites; coupling; effects; fatigue; matrix; mwcnt; rubber; surface; tensile cache: hjic-344.pdf plain text: hjic-344.txt item: #333 of 680 id: hjic-345 author: Lukacs, Z. title: Application of the Remote Earth Potential in Cathodic Protection Measurements date: 2012 words: 3869 flesch: 48 summary: As follows from Eq. 7, the slope of this linear relationship gives the difference of the remote earth ON and OFF potentials and the intercept gives the remote earth OFF potential. Table 1: Comparison of measured and calculated values of remote earth potentials Parameter Measured /V Calculated from Eq. keywords: cathodic; coating; current; defect; potential cache: hjic-345.pdf plain text: hjic-345.txt item: #334 of 680 id: hjic-346 author: Vozik, D.; Madarász, J.; Csanádi, Z.; Fodor, A.; Dublecz, K.; Bélafi-Bakó, K. title: Study on Analysis of Antibiotic Compounds from Enthomopathogenic Bacteria by Ft-Ir date: 2012 words: 1936 flesch: 46 summary: Figure 1: Antibiotic compounds purified with iPrOH from EMA Figure 2: Antibiotic compounds purified with MeOH from EMA Figure 3: Antibiotic compounds purified with iPrOH form EMC 85 All other side chain absorption overlap with the absorption of other side chains or of the polypeptide backbone and further experiments are needed to assign an absorption band to a specific side chain moiety. keywords: amino; bacteria; cm-1; compounds; meoh; peptides; proteins cache: hjic-346.pdf plain text: hjic-346.txt item: #335 of 680 id: hjic-347 author: Tóth, G.; Lövitusz, É.; Nemestóthy, N.; Bélafi-Bakó, K. title: Biocatalytic Hydrogen Sulphide Removal from Gaseous Streams date: 2012 words: 2309 flesch: 44 summary: Removal of hydrogen sulphide is usually carried out by physical-chemical methods (e.g. adsorption), but nowadays some bio-processes may be considered as promising alternatives. Various strains have been applied so far for degradation of hydrogen sulphide, they belong mostly to the group of Thiobacillus, which are autotrophic microorganisms. keywords: bacteria; carbon; concentration; figure; hydrogen; phase; sulphide; thiomonas cache: hjic-347.pdf plain text: hjic-347.txt item: #336 of 680 id: hjic-348 author: Borbély, T. title: Optimal Design of High-Temperature Thermal Energy Store Filled with Ceramic Balls date: 2012 words: 4120 flesch: 58 summary: The regenerators are long ago applied, great heat capacity heat stores with solid fill and with short charge-discharge cycle time (10–7200 s). The heat-loss can be reduced by using heat store with small specific surface and by allowing charge from middle to outside and discharge from outside to middle. keywords: charge; flow; heat; heat storage; heat transport; material; storage material; store; temperature; transport medium cache: hjic-348.pdf plain text: hjic-348.txt item: #337 of 680 id: hjic-349 author: Bánhidi, O. title: Study of the Properties of a Plain Cathode Grimm-Type Dc Glow Discharge Source Operated in a Current-controlled Pulse Regime date: 2012 words: 3035 flesch: 65 summary: By using constant current pulses, the state of the system can also be controlled. To provide constant current pulses, a current generator is needed. keywords: current; drop; figure; pressure; source; voltage cache: hjic-349.pdf plain text: hjic-349.txt item: #338 of 680 id: hjic-350 author: El-Desouky, T.A.; May Amer, M.; Naguib, K. title: Effects of Pan Bread Making on Zearalenone Levels in Artificial Contaminated Wheat Flour date: 2012 words: 3258 flesch: 56 summary: After mixed directly 23.26 ±0.34 46.98 ±0.4 73.71 ±0.12 96.45 ±0.17 30 13.71 ±0.46 24.18 ±0.25 43.88 ±0.52 71.43 ±0.39 45 9.44 ±0.18 19.22 ±0.44 37.6 ±0.41 63.16 ±0.51 Table 2: Concentrations of ZEA determine in artificially contaminated wheat flour after dough fermentation at 30°C (n=3) Spiking level of ZEA (µg/kg) Time of fermentation dough(min) 25 50 75 100 After mixed directly 23.26 ±0.34 46.98± 0.4 73.71 ±0.12 96.45± 0.17 30 10.3 ±0.26 22.45± 0.28 39.76 ±0.71 65.58± 0.73 45 7.52 ±0.1 17.14± 0.19 34.19 ±0.38 60.38± 0.92 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 25 50 75 100 Concentration of ZEA in artificially wheat flour (µg/kg) R ed uc tio n of Z E A (% ) fermentation at 30ºC for 30min fermentation at 30ºC for 45min fermentation at 25ºC for 30min fermentation at 25ºC for 45min Figure 1: The percentages of ZEA reduction during fermented dough Effect of baking ZEA concentration as affected by baking of artificially contaminated flour dough during Pan bread making is shown in Table 3 and Figure 2. The percentage of ZEA reduction increased with time of fermentation dough shown in (Figure 1). keywords: cell; dough; fermentation; flour; min; zea; zearalenone cache: hjic-350.pdf plain text: hjic-350.txt item: #339 of 680 id: hjic-351 author: Poznić, A.; Zelić, A.; Szabó, L. title: Magnetorheological Fluid Brake – Basic Performances Testing with Magnetic Field Efficiency Improvement Proposal date: 2012 words: 4523 flesch: 59 summary: A lot of work was done on MR fluid brakes modelling, properties investigation and control [3, 6, 11]. MR fluid brakes have also been used in actuators due to their distinguished force control and power transmission features [5, 15]. keywords: brake; design; disk; field; fluid; mr brake; rotor; speed; torque; types cache: hjic-351.pdf plain text: hjic-351.txt item: #340 of 680 id: hjic-352 author: , title: Downloadable Full Issue date: 2012 words: 42690 flesch: 45 summary: The regenerators are long ago applied, great heat capacity heat stores with solid fill and with short charge-discharge cycle time (10–7200 s). The melt of the solar salt (60% NaNO3 + 40% KNO3) is used out of these materials in concentrated solar power plants as heat storage material (operating temperature range 260–550ºC, volumetric heat capacity ~2.84 MJ/m3K keywords: /bicubic; /namespace; /ok; /qfactor; /quality; /vsamples; acid; acrobat; adobe; adobe pdf; adobe reader; brake; carbon; case; coating; current; data; design; discharge; documents; effects; fatigue; figure; fluid; heat; heat storage; heat transport; iec61966; material; medium; mwcnt; potential; prepress; results; rubber; source; srgb; storage; store; surface; system; temperature; tensile; time; torque; transport; type; zea cache: hjic-352.pdf plain text: hjic-352.txt item: #341 of 680 id: hjic-354 author: , title: Editorial Preface date: 2014 words: 414 flesch: 48 summary: Even those students who do not continue their life in the academia tend to remember their time spend on TDK activities as useful and memorable. editorial EDITORIAL PREFACE The Editorial Board of HJIC dedicates this Issue to the National Scientific Students’ Associations (Tudományos Diákkör, in Hungarian, abbreviated as TDK) that is a real Hungaricum with a 62 years old tradition. keywords: students cache: hjic-354.pdf plain text: hjic-354.txt item: #342 of 680 id: hjic-355 author: Eck-Varanka, Bettina; Horváth, Eszter; Ferincz, Árpád; Paulovits, Gábor; Kováts, Nóra title: Comparative Assessment of the Mussel Micronucleus Test Versus Bacterial Bioassays for Genotoxicity Testing of Benzo[a]pyrene date: 2014 words: 3679 flesch: 49 summary: Ideal concentration-response graphs were found for the MN test and the S9 supplemented Ames test. [32] MOUCHET F., GAUTHIER T.L., MAILHES C., JOURDAIN M.J., FERRIER V., TRIFFAULT G., DEVAUXE A.: Biomonitoring of the genotoxic potential of aqueous extracts of soils and bottom ash resulting from municipal solid waste incineration, using the comet and micronucleus tests on amphibian (Xenopus laevis) larvae and bacterial assays (Mutatox® and Ames tests), Sci. keywords: ames; b[a]p; chromotest; concentration; control; dm-3; genotoxicity; micronucleus; mutation; response; sos; test; water cache: hjic-355.pdf plain text: hjic-355.txt item: #343 of 680 id: hjic-356 author: Sója, János; Sedlarik, Vladimir; Kucharczyk, Pavel; Miskolczi, Norbert title: Improving the Interfacial Properties of Glass Fibre Reinforced and Unreinforced Waste Sourced Low Density Polyethylene/Acrylonitrile Butadiene Styrene/Polystyrene Composites date: 2014 words: 3392 flesch: 56 summary: Properties of compatibilized nylon 6/ABS blends: Part II. Effects of compatibilizer type and processing history, Polymer, 2000, 41(1), 239–258 [5] HUSSEIN I.A., HAMEED T., SHARKH B.F.A., MEZGHANI K.: Miscibility of hexene-LLDPE and LDPE blends: influence of branch content and composition distribution, Polymer, 2003, 44(16), 4665–4672 On the contrary, the untreated LDPE/ABS/PS composites have tensile strength of 15.3 MPa without fibres, and 16.8 MPa in the presence of 20% glass fibre. keywords: abs; glass; ldpe; mpa; properties; strength; tensile cache: hjic-356.pdf plain text: hjic-356.txt item: #344 of 680 id: hjic-357 author: Bobek, Janka; Kovács, Zsófia; Zsilák, Zoltán title: Application of Online and Laboratory Methods for the Investigation of Surface Waters date: 2014 words: 3210 flesch: 51 summary: Emission spectra taken with fluorimeter Table 4: Monthly average values for water quality parameters August September October pH 7.64 7.45 7.43 Conductivity, µS cm-1 711.22 707.16 720.74 Oxygen saturation, % 84.15 93.4 77.32 Dissolved oxygen, mg dm-3 9.39 10.28 8.73 NH4 +-N, µg dm-3 33 31 26 NO2 --N, µg dm-3 31 17 15 NO3 --N, mg dm-3 5.12 4.02 4.14 PO4 3--P, µg dm-3 113.79 96.58 92.04 18 water qualification in the observed timeframe in monthly divisions. We have prepared Table 2: Devices used to measure physical and chemical properties of water samples Mobile Monitoring Station 1 Mobile Monitoring Station 2 Laboratory pH NEOTEK- PONSEL, PHEHT SENTEK PI11 Consort C902 conductivity NEOTEK- PONSEL, C4E Endress+Hauser InduMaxP CLS 50 Consort C902 turbidity NEOTEK- PONSEL, NTU sensor Endress+Hauser TurbiMax W CUS41/CUS41- W - PO4 3--P - µMAC C Lovibond PC Spectro NH4 +-N NO3 --N NO2 --N PAH Trios, eviroFlu- HC - - Figure 10: The effect of the city of Veszprém on the investigated section of Séd creek Table 3: Comparison of laboratory and online measurement results EnviroFlu (µg dm-3) Laboratory (µg dm-3) sample form Séd 13.01 0.13 Séd + 20 µg dm-3 PAH mix 25.27 13.7 Séd +100 µg dm-3 naphtaline-disulphonate 21.03 0.15 Figure 11: keywords: concentration; dm-3; laboratory; mobile; monitoring; results; station; séd; water cache: hjic-357.pdf plain text: hjic-357.txt item: #345 of 680 id: hjic-358 author: Táborosi, Attila; Kurdi, Róbert; Szilágyi, Róbert K. title: Adsorption and Intercalation of Small Molecules on Kaolinite from Molecular Modelling Studies date: 2014 words: 2547 flesch: 44 summary: Comparison of the urea (Fig.5) and ethylene Figure 3: Computational models for urea absorption at O- (A) and T-layers in geminal (B) and vicinal (C) arrangements Figure 5: Computational models for the adsorption of ethylene glycol at the (A) O- and (B) T-sheets Figure 4: Computational model for intercalation of urea in kaolinite 22 glycol (Fig.6) intercalated models, the network of interactions between the layers and reagents parallel well the different experimental basal spacing (10.7 vs. 9.5 Å, respectively). When water Figure 7: Computational models for the adsorption of potassium acetate on (A) O- and (B) T-sheets Figure 6: Computational model for ethylene glycol intercalation in kaolinite Figure 8: Computational models for potassium acetate intercalation in the (A) absence and (B) presence of solvent water 23 is present, it is likely to solvate the negatively charged end of the acetate ion with a characteristic -COO-…H- OH distance of 1.63 Å. keywords: acetate; adsorption; intercalation; kaolinite; models; sheet; urea cache: hjic-358.pdf plain text: hjic-358.txt item: #346 of 680 id: hjic-359 author: Lukács, Diána; Horváth, Krisztián title: Impact of Size Heterogeneity of Core-Shell Packing Materials on Chromatographic Separation of Large Biomolecules date: 2014 words: 3576 flesch: 58 summary: The results showed that the affect of particle size distribution was the highest in case of fully porous phases, and it decreased as the diameter of the inner core decreased. In literature, fairly contradictory information can be found about the effect of particle size distribution, PSD, on the separation efficiency. keywords: core; efficiency; particle; separation; shell; size cache: hjic-359.pdf plain text: hjic-359.txt item: #347 of 680 id: hjic-360 author: Molnár, Tímea; Varga, Csilla; Bartha, László title: Effects of Washing of Raw Material on Properties of Carbon Nanotube Containing Poly(Ethylene-Terephthalate) Composites date: 2014 words: 3491 flesch: 50 summary: SEM graphs of PET sample containing pristine CNT A B Figure 16: SEM graphs of unwashed PET based sample containing 15% CA-2 coupling agent treated carbon nanotube A B Figure 17: SEM graphs of washed PET based sample containing 20% CA-1 coupling agent treated carbon nanotube 37 nanotubes were applied either in pristine or surface treated form. Untreated CNT could be introduced into the polymer melts at 2 wt% level both into washed and unwashed PET raw materials by the same side feeder screw rotational speeds. keywords: agent; carbon; cnt; composites; coupling; pet; pristine; surface; washing cache: hjic-360.pdf plain text: hjic-360.txt item: #348 of 680 id: hjic-361 author: Maloveczky, Anna; Enisz-Bódogh, Margit; Kulcsár, Tamás title: Investigation the Properties of Y-Ba-Cu-Oxide Superconductors Prepared by Hydraulic Pressing and Molding date: 2014 words: 2408 flesch: 51 summary: A granular ceramic layer would require a larger thickness, but in all cases the thickness and weight of the superconducting shields would be much less than those of magnetic materials providing a comparable effect. Vortex pinning in heavily Pb-doped Bi2212 crystals Physica C 1999, 324, 211–219 [10] GRADER G.S., JOHSON D.W.: Forming methods for high Tc superconductors, Thermochimica Acta, 1991, 174, 239–251 [11] KOMLAI K.: Investigation of the the properties of the incongruent melting reaction of YBa2Cu3O-y superconductor phase, M.Sc. keywords: hydraulic; magnetic; materials; phase; properties; samples; shielding; superconductors cache: hjic-361.pdf plain text: hjic-361.txt item: #349 of 680 id: hjic-362 author: Capári, Dániel; Dallos, András title: Effects of Ultrasonic Disintegration, Hot-Compressed Liquid Water Pre-Treatment, and Steam Explosion on Solvolysis and Digestibility Of Grain Sorghum Stover date: 2014 words: 5017 flesch: 49 summary: The comparison of the pre-treatment results of the chemical analysis, the SCOD concentration, and pH changes of grain sorghum stover slurries suggested that the most effective disintegration method is the steam explosion to disrupt the lignocellulosic structure of grain sorghum stover and partial hydrolysis of it molecular components. This study is focused on hot- compressed liquid water, steam explosion and ultrasonic pre-treatments of grain sorghum stover. keywords: biogas; corn; explosion; grain; grain sorghum; pre; production; scod; sorghum; sorghum stover; steam; stover; time; treatment; water cache: hjic-362.pdf plain text: hjic-362.txt item: #350 of 680 id: hjic-363 author: Kontos, János; Tóth, Lászó Richárd; Varga, Tamás title: Development of a Reaction Structure Identification Algorithm date: 2014 words: 4514 flesch: 52 summary: In our case, the identification means the selection of reaction steps that can take place in the reactor. We defined a quantitative measure to check the correctness of the identified kinetic parameters as the mean average difference between the known and the identified reaction rate constants: MAE = 1 Ndr k̂l − kl l=1 Ndr ∑ (15) where Ndr is the number of reactions in unknown CRN; l identifies the current reaction rate constant; k̂ is the reaction rate constant value what we are looking for, such as the last column in Table 1 for CRN01. Table 4 presents the number of reaction steps in the unknown CRN (Ndr), the number of components (Nc) in the system, the number of the possible reaction steps (Nr) as a representation of the size of the reaction set, if the algorithm can find the perfect reaction steps or not, and MAE values when available from Eq.(15). keywords: algorithm; components; crn; identification; reaction; steps cache: hjic-363.pdf plain text: hjic-363.txt item: #351 of 680 id: hjic-364 author: , title: Downloadable Full Issue date: 2014 words: 33434 flesch: 50 summary: 84 [12] ENDELE R., HALÁSZ I., UNGER K.: Influence of the particle size (5-35 µm) of spherical silica on column efficiency in HPLC, J. Chromatogr., 1974, 99, 377–393 [13] DEWAELE C., VERZELE M.: Influence of the particle size distribution of the packing material in reversed-phase high-performance liquid chromatography, J. Chromatogr., 1983, 260, 13–21 [14] BILLEN J., GUILLARME D., RUDAZ S., VEUTHEY J.L., RITCHIE H., GRADY B., DESMET G.: keywords: abs; agent; biogas; case; chemical; cnt; components; composites; concentration; core; coupling; crn; dm-3; effect; efficiency; explosion; figure; grain; hungarian; hungary; identification; laboratory; ldpe; materials; method; models; modulus; monitoring; mpa; pannonia; parameters; particle; pet; polymer; pre; presence; production; properties; reaction; results; samples; shell; size; sorghum; steam; steps; stover; strength; structure; surface; system; table; tensile; test; time; treatment; university; values; veszprém; waste; water; work cache: hjic-364.pdf plain text: hjic-364.txt item: #352 of 680 id: hjic-373 author: Borsos, A.; Lakatos, B. G. title: Crystallization of para-Xylene in a Batch Cooling Crystallizer date: 2011 words: 3722 flesch: 43 summary: The differences between the processes of crystal mean sizes obtained by Table 4: Kinetic parameters used in simulation kg0=16.25 ms-1 g=4.74 kv=0.52 b=0.71 kb0=345.59 #m-3s-1 ρh=1000 kg m-3 ρc=1100 kg m-3 ρsv=1000 kg m-3 Eg=370.23 J mol-1 Eb=-63.37 J mol-1 using the original parameters listed in Table 3 and those in Table 4 are shown in Fig. PhD Thesis, University of Veszprém, Veszprém (2002) 10. Á. BORSOS, B. G. LAKATOS: Modelling of crystal size distribution in batch cooling crystallizer (in Hungarian); Proceedings of Conference Chemical Engineering Days, Veszprém (2011) 11. keywords: balance; crystallization; crystallizer; crystals; equations; fig; model; moment; population; size; xylene cache: hjic-373.pdf plain text: hjic-373.txt item: #353 of 680 id: hjic-374 author: Baladincz, P.; Tóth, Cs.; Kovács, S.; Hancsók, J. title: Investigation of the Hydroconversion of Lard and Lard-Gas Oil Mixture on PtPd/USY Catalyst date: 2011 words: 5561 flesch: 47 summary: On Fig. 13, it can be seen that in the case of 50% triglyceride containing feedstock, compared with what can be experienced in the case of pure gas oil feedstock, it is turned up, that the most favourable process temperature for achieve the maximum dearomatizing efficiency slightly higher, thanks to the high heteroatom content of the feedstock originated from its triglyceride part. We determined that during the co-processing of lard and desulphurized gas oil, the saturation of the aromatic content and the deoxygenation of the triglyceride part of the feedstock -isoparaffins formed - took place, respectively and at process temperatures (360–380 °C) found to be favourable by us, excellent, bio-component containing and significantly dearomatized diesel fuel blending components could be obtained. keywords: bio; case; feedstock; fuels; gas; gas oil; lard; oil; product; triglyceride cache: hjic-374.pdf plain text: hjic-374.txt item: #354 of 680 id: hjic-375 author: Kodrik, L.; Wagner, L.; Imre, K.; Polyak, K.F.; Besenyei, F.; Husveth, F. title: The Effect of Highway Traffic on Heavy Metal Content of Cow Milk and Cheese date: 2011 words: 3428 flesch: 55 summary: Approximately 0.5 g of both cheese and feed, and 5 mL of milk samples were transferred into teflon vessels and 8 mL of nitric acid (HNO3, 65% Suprapur®, Merck) and 2 mL of hydrogen peroxide (H2O2, TraceSELECT® Ultra) were mixed. Results and Discussion Metal concentrations in milk samples Ten heavy metals were detected in the cow milk: As, Cd, Cr, Cu, Fe, Mn, V, Ni, Pb and Zn. keywords: areas; cheese; concentrations; cow; elements; highway; metals; milk; samples cache: hjic-375.pdf plain text: hjic-375.txt item: #355 of 680 id: hjic-376 author: Kollár, K. title: Relationship between Input Channel Excitation Time and Profinet IO Refresh Time date: 2011 words: 3846 flesch: 37 summary: Keywords: local economic development instrument, local economic development strategy, human resource development, direct service development, Economic Development Scheme of Vienna Introduction As we examine the international and national literature we can see that the regulatory and organizational system of the countries are quite differentiated and diverse but in the case of economic development tools used by local actors the situation isn't the same, in fact they are very similar. The process of local economic development is extremely complex. keywords: business; city; development; enterprises; improvement; instruments; support; tax; tools; vienna cache: hjic-376.pdf plain text: hjic-376.txt item: #356 of 680 id: hjic-377 author: Morauszki, T.; Mándli, P.; Horváth, Z.; Dreyer, M.R. title: Simulation of Fluid Flow, Combustion and Heat Transfer Processes in Internal Combustion Engines date: 2011 words: 2933 flesch: 47 summary: Keywords: Internal combustion engines, Air flow simulation, Direct-injection, Spark ignition, Combustion Introduction Although internal combustion engine development has in certain aspects already approached its limits, just by looking ahead to the upcoming tightening of the emission norms, it is clear that further optimization is inevitable. The main goal of this work is to develop and present a complex simulation method for evaluating important physical properties in the combustion chamber of a gasoline direct injection engine, such as air flow in the combustion chamber, direct injection of gasoline, mixture formation, spark ignition and combustion processes, heat generation and heat transfer from hot air to the surrounding solid walls. keywords: air; combustion; exhaust; fig; flow; intake; simulation; stroke cache: hjic-377.pdf plain text: hjic-377.txt item: #357 of 680 id: hjic-378 author: Solecki, L. title: Methods of Surfaces Quality Comparison in Mechanical Engineering Applications date: 2011 words: 3292 flesch: 42 summary: The presentation introduces a method for comparing cylinder surfaces of an internal combustion engine and presents an example of the method currently used in automotive engineering applications. Wear analysis of cylinder surfaces of internal combustion engines On the cylinder surface, the wear is less measurable for the change of the surface dimension or shape than for the change of the micro-geometry (irregularity) of the surface. keywords: comparison; cylinder; perception; points; print; shape; surface; wear cache: hjic-378.pdf plain text: hjic-378.txt item: #358 of 680 id: hjic-379 author: Lakatos, I.; Titrik, Á.; Orbán, T. title: Data Determination of an Internal Combustion Engine for Model Set-up date: 2011 words: 2007 flesch: 53 summary: /SVE /TUR /UKR /ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing. (Za stvaranje Adobe PDF dokumenata najpogodnijih za visokokvalitetni ispis prije tiskanja koristite ove postavke. keywords: engine; figure; model; system; ø54.4 cache: hjic-379.pdf plain text: hjic-379.txt item: #359 of 680 id: hjic-380 author: Törőcsik, D. title: Some Design Issues of Multi-Plate Magnetorheological Clutches date: 2011 words: 2704 flesch: 51 summary: Torque calculation of plate type MR clutches We restricted our research to examine a plate clutch with a fixed inductor. B B a) b) Figure 3: MR-clutch constructions In the case of plate clutches (Fig. keywords: clutch; clutches; fluid; flux; number; plates; torque cache: hjic-380.pdf plain text: hjic-380.txt item: #360 of 680 id: hjic-381 author: Bocsi, R.; Horvath, G.; Hanak, L.; Hodai, Z. title: Extraction Examinations of Microalgae Propagated for Biodiesel Additives date: 2011 words: 3566 flesch: 47 summary: In this case algae suspension flows in a canal. If we make several processes on algae suspension from concentrating to drying, we should extract the widest range of compounds of biomass. keywords: algae; biomass; co2; compounds; extraction; light; microalgae; parameters; technology; type; use cache: hjic-381.pdf plain text: hjic-381.txt item: #361 of 680 id: hjic-382 author: Borsodi, N.; Miskolczi, N.; Lázár, I.; Bartha, L.; Gerencsér, A. title: Hydrocarbon Fractions Obtained from Recycling of Waste Materials date: 2011 words: 3989 flesch: 52 summary: Contaminant level of liquid products Chlorine and nitrogen content of liquid product was measured. Pyrolysis products are similar to the hydrocarbon- fractions generated in an oil refinery, therefore they can be used as fuels or petrochemical feedstock [1-4]. keywords: catalysts; composition; liquid; material; oil; products; pyrolysis; zeolite cache: hjic-382.pdf plain text: hjic-382.txt item: #362 of 680 id: hjic-383 author: Enisz, K.; Tóth, P.; Fodor, D.; Kulcsár, T. title: Vehicle Dynamics Based ABS ECU Testing on a Real-Time HIL Simulator date: 2011 words: 2166 flesch: 43 summary: 8): ● state selection (Fig. 9) ● main pressure change check (Fig. 10) ● cycle interval calculation (Fig. 11) ● target pressure calculation (Fig. 12) ● pressure difference calculation (Fig. 13) ● brake pressure calculation (Fig. 14). Keywords: HIL simulation environment, ABS, ECU Introduction The cost efficient ECU testing becomes an important issue. keywords: abs; calculation; ecu; fig; figure; pressure; wheel cache: hjic-383.pdf plain text: hjic-383.txt item: #363 of 680 id: hjic-384 author: Fehér, C.; Skoda-Földes, R.; Kriván, E.; Hancsók, J. title: Oligomerization of Izobutene in the Presence of Ionic Liquid – Based Catalysts date: 2011 words: 3084 flesch: 50 summary: Supported ionic liquids: versatile reaction and separation media, Top. [12] Generally, ionic liquids (ILs) have gained increasing attention with multiple applications in synthesis and catalysis. keywords: catalysts; isobutene; liquids; oligomerization; presence; reaction; run; selectivity; silp-1 cache: hjic-384.pdf plain text: hjic-384.txt item: #364 of 680 id: hjic-385 author: Hodai, Z.; Horváth, G.; Hanák, L.; Bocsi, R. title: Densification Processes of Microalgae Bred for Biodiesel Production date: 2011 words: 3288 flesch: 43 summary: Interpretation of fouling characteristics of ultrafiltration membranes during the filtration of membrane bioreactor mixed liquor, Journal of Membrane Science, 264(1-2), (2005), 151–160 << /ASCII85EncodePages false /AllowTransparency false /AutoPositionEPSFiles true /AutoRotatePages /None /Binding /Left /CalGrayProfile According to the assessment of the experimental results, the optimal solution seems to be membrane separation, on different grounds. keywords: alga; concentrate; content; densification; device; dm3; energy; membrane; module; permeate; production; suspension cache: hjic-385.pdf plain text: hjic-385.txt item: #365 of 680 id: hjic-386 author: Kovács, L.; Fodor, D. title: Estimation of the Maximum Applicable Voltage Level of Aluminium Electrolytic Capacitors by Automated Spark-Detection Measurement date: 2011 words: 3960 flesch: 44 summary: Developing Process of Capacitor Development of aluminium electrolyte capacitors is a complex process. The graphical interfaces of electrolyte measurements have two pages. keywords: aluminium; capacitor; current; electrolyte; foil; leakage; measurement; spark; voltage cache: hjic-386.pdf plain text: hjic-386.txt item: #366 of 680 id: hjic-387 author: Sinka, Zs.; Kovács, J.; Yuzhakova, T.; Lakó, J. title: Vehicle Exhaust Gas Emission and its Catalytic Depollution date: 2011 words: 3360 flesch: 44 summary: Keywords: gas emissions, vehicle, catalytic converter, nitrogen oxides, hydrocarbons Introduction The sustainable development should be taken into consideration in everyday life activities, that is respected behind the process mechanization, automatization the environmental and atmosphere protection problems as well. Some experimental studies were carried out to investigate the activity of used commercial catalysts for cleaning processes of Otto engines exhaust gases. keywords: air; catalyst; emission; exhaust; gas; methane; nitrogen; oxides cache: hjic-387.pdf plain text: hjic-387.txt item: #367 of 680 id: hjic-388 author: Solymosi, P.; Kasza, T.; Hancsók, J. title: Investigation of Hydrogenation of Conventional and High Oleic Acid Content Rapeseed or Sunflower Oils date: 2011 words: 4329 flesch: 47 summary: During the conversion of high oleic acid vegetable oils while applying the favourable process parameter combination the yield was higher and the hydrogen consumption was unequivocally lower. On the basis of our experimental 89 results we obtained that in case of hydrogenation of high oleic acid sunflower and rapeseed oil the oxygen removal mainly took place in the HDC reactions resulting lower hydrogen consumption. keywords: acid; acid rapeseed; acid sunflower; oil; oleic; oleic acid; pressure; rapeseed; rapeseed oil; sunflower; vegetable; ° c cache: hjic-388.pdf plain text: hjic-388.txt item: #368 of 680 id: hjic-389 author: Jakab, R.; Enisz, K.; Hauptmann, V.; Speiser, F.; Fodor, D. title: Bycicle ABS Prototype Development date: 2011 words: 2639 flesch: 53 summary: Keywords: ABS, hydraulic brake system, bicycle Introduction Nowadays more and more efforts are taken to make the road traffic safer. The ABS control algorithm is able to run on a separate SBC (single board computer) and not only on the ECU (electronic control unit), the bicycle has hydraulic brake system and the algorithm is able to actuate both of the wheels independently but in synchronized manner. keywords: abs; algorithm; bicycle; control; sbc; speed; system; wheel cache: hjic-389.pdf plain text: hjic-389.txt item: #369 of 680 id: hjic-390 author: Tófalvi, R.; Sepsey, A.; Horváth, K.; Hajós, P. title: Environmental Significance and Identification of Metal-Chelate Complexes Using Ion Chromatography date: 2011 words: 3360 flesch: 44 summary: The aim of this work is the optimization of a simultaneous chromatographic separation and identification of metal ions complexed by the ligand EDTA or DCTA. The presence of inorganic pollutants, especially toxic metal ions, is a serious issue, as metal ions may often be carcinogenic in nature. keywords: anions; chromatography; complexes; edta; eluent; ion; metal; retention; separation cache: hjic-390.pdf plain text: hjic-390.txt item: #370 of 680 id: hjic-391 author: Fischer, Sz.; Horvát, F. title: Superstructure Stabilization of Ballast Bedded Railway Tracks with Geogrids date: 2011 words: 3930 flesch: 46 summary: Interlocking effect and load bearing of a reinforced ballast (modified from Konietzky, et al., 2004) Goal of the research work The research team investigates the stabilization effect of geogrid layers under railway ballast using three methods: – constructing trial field track sections where the track geometry position and its changes are regularly measured, – setting up laboratory tests which are adequate for determining parameters related to ballast material- geogrid interaction, – computer-aided modelling for improving and generalizing the relationships. The changing of interlocking effect in the ballast material as a function of vertical distance from geogrid layer is a key-role for the conformability of evaluation of geogrid 103 reinforcement’s use. keywords: ballast; effect; geogrid; layer; n.a; railway; reinforcement; research; shear; tests; track; type cache: hjic-391.pdf plain text: hjic-391.txt item: #371 of 680 id: hjic-392 author: Király, A.; Belvárdi, G.; Abonyi, J. title: Determining Optimal Stock Level in Multi-Echelon Supply Chains date: 2011 words: 4443 flesch: 48 summary: The diagram shows weekly inventory levels in the Warehouses at the optimal case. 111   Weeks  y Figure 8: Inventory levels in the 2-level system. Simulation is a very useful alternative for analyzing supply chain systems and a well-constructed model can provide a better approach and can give more realistic picture of the complex situation. keywords: chain; demand; inventory; level; model; optimization; service; simulation; stock; supply; system; time cache: hjic-392.pdf plain text: hjic-392.txt item: #372 of 680 id: hjic-393 author: Szentes, A.; Horváth, G.; Varga, Cs.; Harrach, G. title: Effect of Multi-Walled Carbon Nanotube Content on Dynamic Mechanical Properties and Crystallinity of polypropilene composites date: 2011 words: 2878 flesch: 49 summary: Carbon nanotubes are promising additives for polymer composites due to their excellent mechanical, electrical, and thermal properties. Small but strong: A review of the mechanical properties of carbon nanotube–polymer composites, Carbon, 44, (2006), 1624–1652 6. Z. SPITALSKY, D. TASIS, K. PAPAGELIS, C. GALIOTIS: keywords: carbon; composites; extruder; melting; nanotubes; properties; screw cache: hjic-393.pdf plain text: hjic-393.txt item: #373 of 680 id: hjic-394 author: Szoboszlai, Zs.; Hancsók, J. title: Investigation of Kinetics of Hydroisomerization of C5/C6 and C6/C7 Alkanes and their Binary Mixtures date: 2011 words: 3111 flesch: 36 summary: Based on the measured and calculated values it was concluded that in case of the non-adequate feed or in case of non-adapted isomerization catalyst – where accordingly to the demands the changes of process parameters have not indicated any opportunity – influence of some component on the isomerization efficiency become significant degree hereby the main linear chain components with low octane number reactions rate of isomerization was interfered. n-pentane concentration in binary mixture, % reaction rate of n-hexane reaction rate of n-pentane Figure 2: Changes in reaction rate of individual components in the binary mixture (T: 150 °C, LHSV: 1.5 h-1, P: 20 bar) 0 5 10 15 20 25 30 35 0 20 40 60 80 100 R ea ct io n ra te , 1 0-8 m ol /s. keywords: benzene; binary; catalyst; concentration; isomerization; number; octane; rate; reaction cache: hjic-394.pdf plain text: hjic-394.txt item: #374 of 680 id: hjic-395 author: Kasza, T.; Hancsók, J. title: Investigation of Fuel Components Produced by the Isomerization of Bio-Paraffin Mixtures date: 2011 words: 4351 flesch: 51 summary: Investigation of the production of high cetane number biogasoil from pre-hydro- genated vegetable oils over Pt/HZSM-22/Al2O3, Microporous and Mesoporous Materials 101, (2007), 148–152 126 13. Methane and ethane were not found in gas products. keywords: catalyst; content; feedstock; fuel; isomerization; lhsv; number; paraffins; production; products cache: hjic-395.pdf plain text: hjic-395.txt item: #375 of 680 id: hjic-396 author: Miókovics, E.; Széplábi, G.; Makó, A.; Hernádi, H.; Hermann, T. title: Effects of Surfactants on the Aggregate Stability of Soils date: 2011 words: 3345 flesch: 48 summary: Finally, the weight of soil samples were measured again (drying 2) and the percentage of the stable aggregates (SAS) was calculated according to the Eq 1. 100 20 21 ⋅ − − = mm mmSAS (1) where: m1 – weight of the soil sample after the first drying (g), m2 – weight of the soil sample after the second drying (g), m0 – weight of the originally used dry soil sample (g). Secondly the aggregate stability measurements were performed with soil samples which were previously soaked in distilled water or surfactant solution for two days. keywords: aggregate; case; concentration; sample; sieving; soil; stability; surfactant; water cache: hjic-396.pdf plain text: hjic-396.txt item: #376 of 680 id: hjic-397 author: Márczi, B.; Gerzson, M.; Leitold, A. title: Diagnostic Investigations Based on the Petri Net Model Generated from the Process Information date: 2011 words: 5367 flesch: 56 summary: The idea of using model structure identification and comparison of discrete event systems models [3] is not new, but the field has matured only recently by a review paper 133-139 (2011) DIAGNOSTIC INVESTIGATIONS BASED ON THE PETRI NET MODEL GENERATED FROM THE PROCESS INFORMATION B. MÁRCZI1, M. GERZSON1 , A. LEITOLD2 1University of Pannonia, Department of Electrical Engineering and Information Systems, Veszprém, HUNGARY E-mail: gerzson@almos.vein.hu 2University of Pannonia, Department of Mathematics, Veszprém, HUNGARY A novel structure comparison procedure for discrete event systems described by Petri nets are proposed in this paper for model-based diagnosis that utilizes the graph distance metric method. keywords: event; fault; file; model; net; operation; petri; process; system cache: hjic-397.pdf plain text: hjic-397.txt item: #377 of 680 id: hjic-398 author: Szalay, I.; Medve, H.; Fodor, D. title: Analysis and Modeling of Slotless Permanent Magnet Synchronous Motors date: 2011 words: 3672 flesch: 44 summary: The most promising sensorless method for precise initial position detection is high frequency signal injection, which is able to transform the effect of anisotropic characteristics of Nd2Fe14B permanent magnet rotor into angle dependent electrical quantities. In the focus of the performed measurements was the data acquisition for developing the high frequency injection based sensorless rotor position detection method of the PMSMs at zero speed. keywords: difference; flux; magnet; measurement; phase; position; reluctance; rotor; voltage cache: hjic-398.pdf plain text: hjic-398.txt item: #378 of 680 id: hjic-399 author: Neukirchner, L.; Fodor, A.; Magyar, A. title: Modeling and Parameter Sensitivity Analysis of a Synchronous Motor date: 2011 words: 3347 flesch: 52 summary: Motor parameters The parameters are described only for phase a since the machine is assumed to have symmetrical tri-phase stator windings system. Figure 4: Model responses for the +90% changing of parameter D Figure 5: Model responses for the +90% changing of parameter r stator resistance Not sensitive: keywords: model; parameter; ⎢ ⎢; ⎢ ⎣; ⎣ ⎡; ⎥ ⎥; ⎥ ⎦ cache: hjic-399.pdf plain text: hjic-399.txt item: #379 of 680 id: hjic-400 author: Tóth, P.; Enisz, K.; Fodor, D. title: Tyre Pressure Monitoring with Wavelet-Transform date: 2011 words: 2389 flesch: 55 summary: /SVE /TUR /UKR /ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing. The first one uses pressure sensors while the second one uses the wheel speed signals of the ESP system on board to make an estimation of the pressure levels of the tyres. keywords: frequency; pressure; transform; wheel cache: hjic-400.pdf plain text: hjic-400.txt item: #380 of 680 id: hjic-401 author: Hatos, P.; Fodor, A.; Magyar, A. title: Parameter Sensitivity Analysis of an Induction Motor date: 2011 words: 2377 flesch: 40 summary: Keywords: induction machine, dynamic state space model, parameter sensitivity analysis Introduction The induction motors are the most commonly used electrical rotating machines in several industrial applications including the automotive industry, too. The mechanical energy Pmech(t) of the system can be defined as: (2.17) where the mechanical energy Wmech(t) in case of rotating motor can be given by: (2.18) keywords: inductance; induction; induction motor; model; motor; parameter; stator; voltage cache: hjic-401.pdf plain text: hjic-401.txt item: #381 of 680 id: hjic-403 author: Árpád, I. title: Investigation of Sensible Heat Storage and Heat Insulation in the Exploitation of Concentrated Solar Energy date: 2011 words: 3549 flesch: 60 summary: This paper analyses this issue and presents a feasible technological solution of how the buildings could continuously be supplied with heat energy from the direct solar radiation and how the energy must be stored as sensible heat storage and how the heat insulation of the heat storage facilities must be planned [1]. heat energy is used for heating and hot water production. keywords: energy; heat; storage; store; temperature cache: hjic-403.pdf plain text: hjic-403.txt item: #382 of 680 id: hjic-404 author: Faluvegi, E.; Cristea, L. title: Control Operation and Analysis of the Spur Gears Profile date: 2011 words: 2353 flesch: 45 summary: Keywords: cylindrical gear, involute profile, profile error, graphical user interface. The theoretic profile of cylindrical gear can be described with an involute curve detected in the front section. keywords: coordinate; errors; gear; gui; measuring; points; profile; theoretical cache: hjic-404.pdf plain text: hjic-404.txt item: #383 of 680 id: hjic-405 author: Bodzás, S.; Dudás, I. title: Connection Theory of Conical Worm Gear Drives date: 2011 words: 2578 flesch: 52 summary: Figure 1: Spiroid worm gear drive The dentation of crown wheel is produced with hob which tiler surface is similar to conical worm surface. The relative velocity of the two surfaces can be determined in coordinate system K2F using the transformation between K1F (x1F, y1F, z1F) coordinate system for worm and the K2F (x2F, y2F, z2F) coordinate system for worm gear: ( ) FFFFF rM dt dr dt dv 11,22 )12( 2 rrr ⋅=⋅= (18) keywords: coordinate; system; ⎢ ⎢; ⎢ ⎣; ⎥ ⎥; ⎥ ⎦ cache: hjic-405.pdf plain text: hjic-405.txt item: #384 of 680 id: hjic-406 author: Farkas, A.; Faragó, P. title: The Attendance of Rational Energy Utilization and of the Green Energy date: 2011 words: 4060 flesch: 55 summary: The non-rational energy utilization could be recognized in the consumption of the country which includes just 6–7% of renewing energy resources. Keywords: energy balance, energy consumption, time balance-examination, renewable energy, biomass Introduction At the beginning of the XXI century the reserves of the World are running out, thus now days our biggest challenge is the solution of the energy crisis. keywords: balance; biomass; energy; energy balance; hours; hungary; research; resources; time; use; utilization cache: hjic-406.pdf plain text: hjic-406.txt item: #385 of 680 id: hjic-407 author: Herseczki, Z.; Marton, G.; Varga, T. title: Enhanced Use of Renewable Resources: Transesterification of Glycerol,the Byproduct of Biodiesel Production date: 2011 words: 3787 flesch: 42 summary: In this study synthesis of glycerol carbonate from glycerol and dimethyl carbonate was investigated. Keywords: biodiesel, glycerol, glycerol carbonate Introduction Crude glycerol is a considerable by-product of biodiesel production. keywords: biodiesel; carbonate; dimethyl; glycerol; methanol; model; parameters; product; reaction; reactor; synthesis cache: hjic-407.pdf plain text: hjic-407.txt item: #386 of 680 id: hjic-408 author: Felho, C.; Kundrak, J. title: Method for Determination of the Expected Roughness of Cut Surfaces date: 2011 words: 2507 flesch: 48 summary: Keywords: surface roughness, theoretical roughness. Such a method will be introduced in the paper, by the help of which theoretical values of surface roughness can be determined for single point cutting by the help of an analytical model. keywords: cutting; edge; profile; roughness; surface; tool cache: hjic-408.pdf plain text: hjic-408.txt item: #387 of 680 id: hjic-409 author: Adorjányi, K.; Füleki, P. title: Performance Evaluation of Bitumens at High Temperature with Multiple Stress Creep Recovery Test date: 2011 words: 2457 flesch: 61 summary: The strain was measured at 0.1 s steps, and there was no relaxation time between stress levels. The distinction between two B 50/70 binders can also be detected here where the differences in recoverable strains are 40–50% depending on stress levels (Fig. 4). keywords: binders; kpa; recovery; stress cache: hjic-409.pdf plain text: hjic-409.txt item: #388 of 680 id: hjic-410 author: Gulyás, G.; Kárpáti, Á. title: Examination Possibilities of Waste Water Purification Originate from Animal Waste Process date: 2011 words: 2208 flesch: 53 summary: Since organic components rate 1st reactor 2nd reactor 3rd reactor 4th reactor 1st reactor 2nd reactor 3rd reactor 4th reactor N itr at e (m g/ l) A m m on iu m (m g/ l) 204 is low comparing to nitrogen compounds and most of easily splitting organic substances are transformed during airing, denitrification would not happen because of missing nutrients. Figure 1: Purification reactors The complete process does not only consist of one intake, stirring, airing, decantation and pumping. keywords: ammonium; concentration; purification; reactor; waste; water cache: hjic-410.pdf plain text: hjic-410.txt item: #389 of 680 id: hjic-411 author: Kovács, A.; Varga, Gy. title: Experimental Results of Dry Drilling of Wear Resistant Steel date: 2011 words: 3368 flesch: 56 summary: During the course of the experiments, after each drilling distance of 90 mm, feed direction cutting force, drilling torque, flank wear, corner wear and average surface roughness were measured. The main advantages of dry cutting are as follows [6]: - this machining method is environmentally friendly, i.e. it does not generate air pollution in the workshop; - the machine operator is not subjected to insalubrious effects: no respiratory or skin diseases are experienced; - the expenses of chip cleaning (oil, emulsion or chemical relief) can be decreased; - there are no coolant and lubricant fluid- related (purchasing, storing, cleaning, disposal) costs; - the structure of machining-related expenses changes (the tool-related increases, but the cooling- and lubrication-related expenses do not change), thus, the production expenses decrease. keywords: cutting; drilling; feed; min; speed; wear cache: hjic-411.pdf plain text: hjic-411.txt item: #390 of 680 id: hjic-412 author: Kun-Bodnár, K.; Maros, Zs. title: Cutting of Aluminium Alloy by Abrasive Waterjet date: 2011 words: 1929 flesch: 49 summary: Figure 2: Kerfing in glass 212 From technological parameters affecting on the efficiency we investigated the effect of the feed rate, pressure, and abrasive mass flow (mass of the abrasive grains given to the waterjet during unit time). MAROS University of Miskolc, Department of Production Engineering, H-3515 Miskolc – Egyetemváros, HUNGARY E-mail: krisztina.bodnar@uni-miskolc.hu E-mail: zsolt.maros@uni-miskolc.hu Aluminium sheets are cut several times by abrasive waterjet cutting. keywords: cutting; depth; kerf; parameters cache: hjic-412.pdf plain text: hjic-412.txt item: #391 of 680 id: hjic-413 author: Mihály, K.; Hornyák, O. title: Using Graphical Processing Units in Scheduling Problems date: 2011 words: 2370 flesch: 60 summary: Our goal is to use this specialized graphical platform for solving scheduling problems. This paper is an initial research of the existing platforms and solutions in general and describes the existing solutions in fact of scheduling problems. keywords: cuda; gpu; hardware; memory; parallel; problems; processing; scheduling cache: hjic-413.pdf plain text: hjic-413.txt item: #392 of 680 id: hjic-414 author: Molnar, V.; Kundrak, J. title: Comparison of Hard Machining Procedures on Material Removal Rate date: 2011 words: 4288 flesch: 54 summary: [mm3/s] L=27.35 mm Figure 2: Practical values of material removal rate based on the operation time by the same bore-hole length Conclusion Focusing on industrial demands, the applicability of hard machining procedures and the determination of their fields of application have been invariably a key research topic. However, it is not easy to outline the application fields where grinding may be substituted by hard turning [1, 2]. keywords: bore; grinding; hole; machining; min; procedure; time; turning cache: hjic-414.pdf plain text: hjic-414.txt item: #393 of 680 id: hjic-415 author: Monostori, R.; Dudás, I. title: Finite Element Method Analysis of Hip-Joint Prosthesis date: 2011 words: 1658 flesch: 41 summary: Metal parts (for example, the stem and the sphere head) of hip prostheses are made of either stainless steel or another metal, for example, titanium. The companion piece (for example socket) is made of polythene [1]. keywords: figure; head; hip; joint; prosthesis; socket cache: hjic-415.pdf plain text: hjic-415.txt item: #394 of 680 id: hjic-416 author: Nádasi, P.; Szabó, I. title: On-Board Applicability of Mems-Based Autonomous Navigation System on Agricultural Aircrafts date: 2011 words: 3725 flesch: 46 summary: The utilization of the MEMS devices on-board of agricultural aircrafts is now in an early stage. The possible operators may come from USA, Ukraine, Russia and China where huge amount of agricultural aircrafts are still in service and the agricultural flights are widely used for pest control over large areas. keywords: aircraft; crop; imu; mems; navigation; pesticide; pilot; spraying; system; wind cache: hjic-416.pdf plain text: hjic-416.txt item: #395 of 680 id: hjic-417 author: Nagy, L.; Lénárt, J.; Jakab, E. title: Determination of the Inductance of Starter Relays date: 2011 words: 2272 flesch: 49 summary: [m H ] Figure 4: Inductance functions 0 10 20 30 40 0 5 10 15 0 2 4 6 8 10 i The electro-dynamic modelling of the mechanism requires inductance of the relay and its derivative depending on the position of the iron core. keywords: coil; core; current; inductance; iron; iron core; measurement cache: hjic-417.pdf plain text: hjic-417.txt item: #396 of 680 id: hjic-418 author: Lupea, D.; Szőke, I.; Majdik, A.; Lazea, Gh. title: Prototype of a Multi-Robot System for Autonomous Gas Mapping in Polluted Environments date: 2011 words: 4776 flesch: 50 summary: A review of electrolyte and electrode materials for high temperature electrochemical CO2 and SO2 gas sensors, Sensors and Actuators, 134(2), (2008), 1034–1041 11. R. MOOS, N. IZU, F. RETTIG, S. REIS, W. SHIN, I. MATSUBARA: Resistive oxygen gas sensors for harsh environments, Sensors, 11(4), (2011), 3439–3465 15. keywords: algorithm; ellipse; gas; map; robot; sensors; state; surf; system; t t; − − cache: hjic-418.pdf plain text: hjic-418.txt item: #397 of 680 id: hjic-419 author: Tancsics, F. title: ‘By’ Treating of Micro-Alloyed Steels Supported by Integrated ‘IT’ Technology in the Forging Factory of Raba date: 2011 words: 3004 flesch: 42 summary: They are more stable even at higher temperature than iron carbide, that’s why at the temperature of hot- forming they are forming carbides, nitrides and carbonitrides with carbon and nitrogen contents of steel. With limited austenite overcooling - from normal (designed) heating temperature (~1240 °C) - in air flow, in defined loading order (designed) (Fig. 5) - without air flow, in defined order (Fig. 6) - from higher heating temperature (~1290 °C) - in air flow, in defined loading order - without air flow, in defined order. keywords: air; cooling; flow; forging; micro; microstructure; temperature cache: hjic-419.pdf plain text: hjic-419.txt item: #398 of 680 id: hjic-420 author: Lőrincz, I.; Czeglédi, D. title: Optimalisation the Position of Solar Cells for Vehicles date: 2011 words: 3445 flesch: 59 summary: Figure 9: The changing of the difference between the charging and drag performance We have developed our vehicle further by utilizing our experience and measuring results (6, 7) of the vehicles built in the previous years (Fig. 10). OPTIMALISATION THE POSITION OF SOLAR CELLS FOR VEHICLES I. LŐRINCZ, D. CZEGLÉDI Széchenyi István University, Department of Automotive and Railway Engineering, Egyetem tér 1. keywords: angle; cells; charging; drag; energy; model; performance; shape cache: hjic-420.pdf plain text: hjic-420.txt item: #399 of 680 id: hjic-421 author: Horvath, R.; Palásti-Kovács, B.; Sipos, S. title: Optimal Tool Selection for Environmental-Friendly Turning Operation of Aluminium date: 2011 words: 4881 flesch: 47 summary: Surface roughness values, made with different compositions polycrystalline diamond tools, were compared, where the dry turning operations were performed with tools with different point angles and nose radii; (the cutting speed was varied in a very wide range (vc = 630–2000 m/min)). This type has an edge rounding off 2 μm and edge roughness value of 1.6 μm respectively. keywords: case; chipbreaker; cutting; edge; inserts; machining; roughness; surface; turning; values cache: hjic-421.pdf plain text: hjic-421.txt item: #400 of 680 id: hjic-422 author: Kohlrusz, G.; Fodor, D. title: Comparison of Scalar and Vector Control Strategies of Induction Motors date: 2011 words: 3699 flesch: 59 summary: The models of the closed-loop V/Hz and the rotor flux- oriented control were implemented in MatLab/Simulink. Figure 4: Closed-loop V/Hz constant control There are some methods which use current control. keywords: control; current; flux; phase; rotor; speed; stator; torque; voltage cache: hjic-422.pdf plain text: hjic-422.txt item: #401 of 680 id: hjic-423 author: Popiţa, G.; Varga, I.; Modoi, C.; Haţegan, R.; Popovici, A. title: Heavy Metal Contamination Assessment and its Environmental Impact in the Area of Rural Waste Disposals in Cluj County,Romania date: 2011 words: 4072 flesch: 52 summary: Regarding the water quality, it was found, as in the case of soil pollution with heavy metals, that the surface waters, in both areas have exhibited serious impact of heavy metal pollution. Regarding the classification of the land use, the transfer of heavy metal pollution was studied into the surface water. keywords: area; concentrations; disposal; metals; samples; soil; waste; waste disposal; water cache: hjic-423.pdf plain text: hjic-423.txt item: #402 of 680 id: hjic-424 author: Raczkovi, L. title: CBN Tool Life Prediction by Artificial Neural Network date: 2011 words: 2700 flesch: 59 summary: [4]: ∑= +++++ −= m i k i k ij k j k j k j waa 1 22111 )1( δδ (8) Determining tool life by Artifical Neural Network In this paper the experimental data set given in [5,6] is used to design a neural network model which predicts tool life according to given range of feed rate, depth of cut, workpiece diameter and cutting speed. Keywords: Tool life, Artifical Neural Network Introduction Cubic boron-nitride was synthesized by R. H. Wentorf in 1957. keywords: cutting; layer; life; network; tool cache: hjic-424.pdf plain text: hjic-424.txt item: #403 of 680 id: hjic-425 author: Vágó, Á.; Rippel-Pethő, D.; Horváth, G.; Tóth, I.; Oláh, K. title: Removal of Hydrogen Sulfide from Natural gas,a Motor Vehicle Fuel date: 2011 words: 4180 flesch: 50 summary: Besides energy density, hydrogen sulfide content for example is a critical quality parameter of natural gas, hence it is strictly regulated. The typical contents of natural gas are given in Table 1, but they can be different for every gas field. keywords: alkali; carbon; concentration; efficiency; flow; gas; hydrogen; nm3; removal; sulfide; volume cache: hjic-425.pdf plain text: hjic-425.txt item: #404 of 680 id: hjic-426 author: Szabo, G.; Kundrak, J. title: Investigation on Coherencies between Residual Stresses and Tool Geometry by Hard Turning date: 2011 words: 2588 flesch: 52 summary: INVESTIGATION ON COHERENCIES BETWEEN RESIDUAL STRESSES AND TOOL GEOMETRY BY HARD TURNING G. SZABO , J. KUNDRAK University of Miskolc, Department of Production Engineering, H-3515 Miskolc, Egyetemváros, HUNGARY E-mail: gergely.szabo@uni-miskolc.hu A wide group of scientists are concerned by the studying of chip removal in hard turning even today. Keywords: hard turning, residual stresses, rake angle Introduction To choose the cutting tool with a proper edge geometry, the research experience gained so far through the examinations of the characteristics of workpieces and tools must be taken into account. keywords: angle; cutting; rake; stresses; surface; tool; workpiece cache: hjic-426.pdf plain text: hjic-426.txt item: #405 of 680 id: hjic-427 author: Szabó, L.; Németh, S.; Szeifert, F. title: Separation of Multicomponent Mixtures date: 2011 words: 3906 flesch: 54 summary: ∑ ∑ − = − = += 1 1 1 1 C i C i Copi Cinvi Csum τ (2) 65,0 65,0 65,0 65,0 14321 5000 328 280 & 11250 328 280 & 323 & i cond i i reb i i p iiiii b ii VHSM VHSM CfffNCfSMCinv ⋅⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ Δ ⋅⋅+ +⋅⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ Δ ⋅⋅+ ++⋅⋅⋅++⋅= (3) condcond i rebreb ii TPHTPHCop )()( ⋅Δ+⋅Δ= (4) where C is number of products; Csum is cost of separation system; Cinvi is investment cost of column number i; Copi is operation cost of column number i; τ is amortization time; M&S is Marshall and Swift index; ΔHi reb is reboiler duty of column number i; ΔHi cond is condenser duty of column number i; Vi is vapor rate in the column number i; P(T)reb is cost of the hot utility (depend on temperature); P(T)cond is cost of the cold 299 utility (depends on temperature); fi 1-4 factor of column number i 9 products were determined in the case study, which makes the number of possible separation systems 1430. keywords: c b; c d; separation; system cache: hjic-427.pdf plain text: hjic-427.txt item: #406 of 680 id: hjic-428 author: Szalkay, Cs. title: The Region of Sebes-Körös and Holt-Sebes-Körös as Sample Areas of the Water Framework Directive date: 2011 words: 1932 flesch: 44 summary: The competent Hungarian authorities started to examine the exact factors of the balanced ecological systems of the wetlands and the freshwater ecosystems and they according to the instructions of the WDF in Hungary marked out for a reference areas just as Körös. The region of Körös is found in the south-east border of Hungary (Fig. 1). keywords: concentration; fig; figure; holt; körös; sebes; water cache: hjic-428.pdf plain text: hjic-428.txt item: #407 of 680 id: hjic-429 author: Szauter, F.; Székely, J. Á.; Horváth, E. title: Development of a Vehicle-Dynamic Measurement and Information System date: 2011 words: 2550 flesch: 46 summary: This means vehicle at any given moment can be determined by the GPS coordinates, motor vehicle data and acceleration values calculated from dynamical parameters. The first aim of the developing vehicle-dynamic measurement and data collection system is to produce two devices, one of these is capable to examine an internal combustion engine powered vehicles and the other is for examine alternative vehicles. keywords: acceleration; data; function; gps; measurement; module; system; vehicle cache: hjic-429.pdf plain text: hjic-429.txt item: #408 of 680 id: hjic-430 author: Sztankovics, I. title: Rotational Turning in Precision Finishing date: 2011 words: 3186 flesch: 55 summary: Table 1: Grouping of tangential feeds by the path of the tool edge and the number of cutting edges Path of the tool edge Linear Circular Si ng le -e dg ed N um be r o f e dg es M ul ti- ed ge d Grouping of tangential feeds by the spatial position of cutting edge Similar to other cutting tools, the cutting tools for methods using tangential feed can have different cutting edge inclination angles. These operations use super hard cutting tools in the machining of hardened steels (HRC>45). keywords: cutting; edge; feed; tool; tool edge; turning; workpiece cache: hjic-430.pdf plain text: hjic-430.txt item: #409 of 680 id: hjic-431 author: Tóth, A.; Balogh, Á.; Wichmann, B.; Dancza, I.; Szalkay, Cs.; Penksza, K. title: Seasonal Changes in Weed Vegetation on Arable Pannonian Sand and Loess Lands in Hungary date: 2011 words: 2441 flesch: 50 summary: Owing to these processes, significant changes appeared in the dominance relations of arable weed species, thus invasion of some of them intensified, while others were forced back. The figure represents mean percentage weed species cover as the result of all 3 surveys conducted on the agricultural field. keywords: agricultural; alfa; parcels; results; species; surveys; weed cache: hjic-431.pdf plain text: hjic-431.txt item: #410 of 680 id: hjic-432 author: Polák, J. title: Efficiency and Mass Optimization of Electric Permanent Magnet Motor Driven Vehicle date: 2011 words: 2511 flesch: 43 summary: Efficiency of drivetrain depends on the transmission and motor efficiency: ηhl = f 317-320 (2011) EFFICIENCY AND MASS OPTIMIZATION OF ELECTRIC PERMANENT MAGNET MOTOR DRIVEN VEHICLE J. POLÁK Széchenyi István University, Department of Automotive and Railway Engineering H9026 Győr, Egyetem square 1, HUNGARY E-mail: polakj@sze.hu The propulsion system of road vehicles could be realized with the use of electric motor and a transmission system. keywords: drive; drivetrain; efficiency; electric; mass; motor; transmission; vehicle cache: hjic-432.pdf plain text: hjic-432.txt item: #411 of 680 id: hjic-433 author: Pézsa, N.; Ailer, P. title: Bioethanol Production from Paper Sludge Pretreated by Subcritical Water date: 2011 words: 2547 flesch: 39 summary: The aim of this paper is to show an alternative for bioethanol production from paper sludge. Keywords: bioethanol, paper sludge, pretreatment, optimum consitions Introduction Alternative transport fuels have raised attention all over the world. keywords: ethanol; experiments; fermentation; glucose; paper; production; sludge; substrate cache: hjic-433.pdf plain text: hjic-433.txt item: #412 of 680 id: hjic-434 author: Farkas, A.; Faragó, P. title: Thoughts about the Clear Energy date: 2011 words: 4722 flesch: 52 summary: Keywords: association, attitudes, energy sources, knowledge The aim of the survey If we want every layer of society to cooperate for success we need society to believe in alternative energy sources and acquire the basic knowledge related to it. In this research we introduce how university students look at alternative energy sources. keywords: attitude; energy sources; factors; findings; interviewees; knowledge; research; respondents; students; university cache: hjic-434.pdf plain text: hjic-434.txt item: #413 of 680 id: hjic-443 author: Bakonyi, P.; Nemestóthy, N.; Ramirez, J.; Ruiz-Filippi, G.; Bélafi-Bakó, K. title: Feasibility study of gas separation membranes for biohydrogen separation date: 2011 words: 1732 flesch: 55 summary: In this work concentration of biohydrogen by gas separation membranes were aimed to study. There are different methods for hydrogen separation and concentration including the membrane processes such as membrane gas separation keywords: gas; hydrogen; membranes; permeation; pressure; separation cache: hjic-443.pdf plain text: hjic-443.txt item: #414 of 680 id: hjic-444 author: Egedy, A.; Varga, T.; Chován, T. title: Application of models with different complexity for a stirred tank reactor date: 2011 words: 3058 flesch: 43 summary: The perfectly mixed vessel models and compartment models were solved in MATLAB/SIMULINK program package. The perfectly mixed vessel models and compartment models were solved in MATLAB/SIMULINK program package. keywords: cfd; compartment; design; impeller; models; parameters; reaction; reactor; tank cache: hjic-444.pdf plain text: hjic-444.txt item: #415 of 680 id: hjic-445 author: Hegedüs, I.; Nagy, E.; Kukolya, J.; Barna, T.; Fekete, Cs. A. title: Cellulase and hemicellulase enzymes as single molecular nanobiocomposites date: 2011 words: 4976 flesch: 42 summary: Table 1: Yields of enzyme nanoparticles of thermostable hemocellulase enzymes (from Thermobifida fusca) using method by Kim et al. Type of enzymes β-mannosidase Mutant β-mannosidase β-xylosidase Endomannanase Sign MN–12 MM–2 XI–6 EM–4 Amount [mg] and yield (η) of enzyme nanoparticles 0.525 (η = 3.50%) 0.782 (η = 4.01%) 3.712 (η = 12.37%) 0.280 (η = 4.15%) 345 Table 2: Comparison of the yields of enzyme nanoparticles using two methods Methods Kim et al. (3 step process) keywords: activity; cellulase; ee ee; enzyme; layer; mannosidase; nanoparticles cache: hjic-445.pdf plain text: hjic-445.txt item: #416 of 680 id: hjic-446 author: Hajba, L.; Eller, Z.; Nagy, E.; Hancsók, J. title: Properties of diesel-alcohol blends date: 2011 words: 2824 flesch: 47 summary: Reducing aromatic content of diesel fuels influences the miscibility of ethanol in diesel fuel and it affects the amount of additive required to achieve a stable blend. Ethanol– diesel fuel blends – a review, Biores. keywords: blends; butanol; content; diesel; ethanol; fuel; water cache: hjic-446.pdf plain text: hjic-446.txt item: #417 of 680 id: hjic-447 author: Orbán-Mihálykó, É.; Mihálykó, Cs.; Lakatos, B.G.; Szabó, T.; Papp, A. title: Profit optimization of batch-continuous production systems under stochastic processingconditions by simulation date: 2011 words: 4075 flesch: 53 summary: Then an important question arises: how much profit can be obtained as a function of the volume of storage system, the initial amount of the material in the storage and the output rate. Such buffering action requires rational sizing of intermediate storages in the design phase keywords: function; material; profit; storage; time; volume cache: hjic-447.pdf plain text: hjic-447.txt item: #418 of 680 id: hjic-448 author: Németh, Á.; Kiss, Á.; Sevella, B. title: Experiments for d-lactic acid production with fermentation date: 2011 words: 2848 flesch: 45 summary: Use of sweet sorghum juice for lactic acid fermentation: preliminary steps in a process optimization, Journal of chemical technology 85 (2010) 872–877 362 4. K. HETÉNYI, Á. NÉMETH, B. SEVELLA: Optimization of wheat flour based medium for lactic acid fermentation, Chemical and Biochemical Engineering Quarterly 24(2) (2010) 195–201 5. For this reason we wanted to examine the possibilities for D-lactic acid fermentation with Lactobacillus coryniformis. keywords: acid; concentration; fermentation; glucose; inhibition; production cache: hjic-448.pdf plain text: hjic-448.txt item: #419 of 680 id: hjic-449 author: Kasza, T.; Hancsók, J. title: Isomerization of paraffin mixtures produced from sunflower oil date: 2011 words: 4301 flesch: 46 summary: For example by increasing the severity of operational parameters the cracking reactions become dominant, furthermore the aromatization may also take place over high activity catalysts or at high temperature. Beside them, the bio gas oil is a promising product that is a fuel with high isoparaffin content in the gas oil boiling range, which can be produced by the catalytic hydrogenation of different triglycerides. keywords: catalyst; content; feedstock; gas; isomerization; oil; products; sapo-11; temperature cache: hjic-449.pdf plain text: hjic-449.txt item: #420 of 680 id: hjic-450 author: Kovács, S.; Pölczmann, Gy.; Hancsók, J. title: Investigation of storage stability of biodiesels date: 2011 words: 3484 flesch: 49 summary: The aim of our research work was to investigate the long term storage stability of biodiesel samples originated from different feedstock. Results showed that the acid number and the water content increased, while the induction period and the iodine number decreased with increasing storage time of biodiesel samples. keywords: acid; biodiesel; content; fatty; oxidation; results; samples; stability; storage; value cache: hjic-450.pdf plain text: hjic-450.txt item: #421 of 680 id: hjic-451 author: Pölczmann, Gy.; Valyon, J.; Hancsók, J. title: Investigation of catalytic conversion of Fischer-Tropsch wax on Pt/ALSBA-15 and Pt/beta zeolite catalysts date: 2011 words: 3639 flesch: 46 summary: 2. Table 1: The main characteristics of the feedstock Properties Value N-paraffin content (C18-C57), % 99.6 Sulphur content, mg/kg 2.5 Nitrogen content, mg/kg 12 Pour point, °C 72 Catalysts We used as catalyst AlSBA-15 and beta zeolite carrier materials prepared by us. The applicability and catalytic activity of Pt/AlSBA-15 and Pt/beta zeolite catalysts of 0.5% platinum content for the selective isomerization of Fischer-Tropsch wax was investigated in the present experiment. keywords: alsba-15; bar; beta; catalyst; content; fischer; gas; products; tropsch cache: hjic-451.pdf plain text: hjic-451.txt item: #422 of 680 id: hjic-452 author: Ujhidy, A.; Szabó-Bárdos, E.; Horváth, O.; Horváth, A.; Schmidt, K. title: Degradation of organic pollutants in photocatalytic reactors date: 2011 words: 4473 flesch: 43 summary: Figure 8: Photocatalytic degradation of oxalic acid on Degussa P25 catalyst, C0(oxalic acid) 0.8 V 0 T O C / m g dm -3 m in -1 VP P90 AE P25 D P25 M PC 500 Figure 9: Initial degradation rates of oxalic acid on different catalysts Photodegradation of formic acid in the pilot equipment In order to investigate the effect of static mixer on the rate of the photocatalytic degradation of pollutants 7·10-3 M solution of formic acid was irradiated in the presence of Degussa P25 catalyst (1 g dm-3) in the pilot equipment. keywords: acid; adsorption; catalyst; degradation; formic; mineralization; oxalic; p25; rate; reaction; surface; tio2 cache: hjic-452.pdf plain text: hjic-452.txt item: #423 of 680 id: hjic-453 author: Vajda, B.; Bélafi-Bakó, K.; Nemestóthy, N. title: The role of methanol inmicrobial fuel cells date: 2011 words: 2969 flesch: 46 summary: Keywords: Microbial fuel cell, Direct methanol fuel cell, Microorganisms Introduction Microbial fuel cells are electrochemical systems which convert chemical energy directly into electrical energy by microorganisms. In direct methanol fuel cells (DMFC) methanol is supplied as an energy source and a polymer membrane is used to separate the two chambers and as an electrolyte. keywords: anode; cell; effect; fuel; methanol; putrefaciens; shewanella; system; voltage cache: hjic-453.pdf plain text: hjic-453.txt item: #424 of 680 id: hjic-454 author: Varga, Zs.; Lövitusz, É.; Csanádi, Zs.; Bélafi-Bakó, K. title: Manufacture of acid urease by lactobacillus fermentumfermentation date: 2011 words: 2571 flesch: 41 summary: Table 3: Optimal pH of several types of acid urease [8] Optimal pH Type of acid urease pH=3 Acid urease from Lactobacillus reuteri pH=3 Acid urease from Lactobacillus fermentum pH=5 Acid urease from Streptococcus bovis pH=4 Acid urease from Streptococcus mitior pH=4 Acid urease from Streptococcus salivarius pH=5 Acid urease from Lactobacillus ruminis Bacteria and cultivation Lactobacillus fermentum (Fig. 2) belongs to Gram-positive species of bacteria in the genus Lactobacillus. Acid urease was developed for removal of EC or prevention of its formation in beverages, and it was found in several bacteria. keywords: acid; beverages; carbamate; enzyme; ethyl; fermentum; lactobacillus; urease cache: hjic-454.pdf plain text: hjic-454.txt item: #425 of 680 id: hjic-455 author: Bányai, T.; Bélafi-Bakó, K.; Nemestóthy, N.; Gubicza, L. title: Biolubricant production in ionic liquids by enzymatic esterification date: 2011 words: 3620 flesch: 41 summary: 5. Figure 3: Influence of the acid/alcohol molar ratio and amount of ionic liquid on the synthesis of isoamyl-oleate 398 Figure 4: Influence of the acid/alcohol molar ratio and amount of enzyme on the synthesis of isoamyl-oleate Figure 5: Influence of the amount of enzyme and ionic liquid on the synthesis of isoamyl-oleate As it shown, increasing amount of ionic liquid results in higher oleate yield, which gives evidence for the advantageous enzyme stabilization effect. Previously biolubricants was successfully produced from fusel oil and isoamyl-alcohol substrates by enzyme catalised esterification, but solution of polar substrates was problematic, that was solved by using ionic liquids. keywords: acid; alcohol; effect; enzyme; esterification; isoamyl; liquid; oil; oleate; reaction; temperature; yield cache: hjic-455.pdf plain text: hjic-455.txt item: #426 of 680 id: hjic-456 author: Borsos, A.; Lakatos, B. G. title: Influence of cooling profile on the product properties in cooling crystallizers date: 2011 words: 4102 flesch: 46 summary: Keywords: Cooling crystallization, Population balance model, Moment method, Cooling method, Simulation. Figure 3: Temperature histories of cooling medium in the case of the (c) and (d) cooling methods Evolutions of the zero order moment μ0 are presented in Fig. 4 for different cooling methods. keywords: balance; cooling; crystalline; crystals; equation; method; model; moment; population; size; suspension; temperature cache: hjic-456.pdf plain text: hjic-456.txt item: #427 of 680 id: hjic-457 author: Németh, D.; Barta, Z.; Labidi, J.; Gubicza, L.; Bélafi-Bakó, K. title: Study on sorption characteristics of citric acid modified rape-seed pellet considering the chemical pre-treatment processes date: 2011 words: 3508 flesch: 49 summary: Figure 4: The effect of citric acid modification for the adsorption efficiency of the properly pre-treated rape-seed in the case of copper, zinc and nickel ions (RP/M – rape-seed modified with citric acid; RPE/M – extracted and citric acid modified rape-seed; RPE/SM – extracted and acidified, citric acid modified rape-seed; RPE/LM – extracted and lixiviated, citric acid modified rape-seed) The ground rape-seed pellet is submitted to a proceeding process containing combined pretreatment and citric acid modification, and it resulted in a rape- seed citrate with ion exchange characteristics. keywords: acid; case; extraction; ions; metal; modification; pellet; pre; rape; seed; treatment cache: hjic-457.pdf plain text: hjic-457.txt item: #428 of 680 id: hjic-458 author: Eller, Z.; Hancsók, J. title: Reduced aromatic jet fuels date: 2011 words: 4380 flesch: 49 summary: Our aim was to study the possibilities of producing low sulphur and aromatic content jet fuels in a catalytic way. Aromatic hydrocarbon content of the middle distillate influences value of smoke point decisively. keywords: bar; content; fuels; hydrogenation; jet; point; products; properties; sulphur; temperature cache: hjic-458.pdf plain text: hjic-458.txt item: #429 of 680 id: hjic-459 author: Németh, G.; Bélafi-Bak, K.; Nemestóthy, N.; Gubicza, L. title: Asymmetric lactic acid esterification with biocatalysts in ionic liquid date: 2011 words: 5423 flesch: 48 summary: Previous report [30] shows that Cyphos 104 and Cyphos 202 were suitable solvents for lactic acid esterification with high ester yield. The product of esterification with low carbon chain alcohols has higher volatility than lactic acid (LA) itself, therefore it can be more effectively separated. keywords: acid; alcohol; candida; content; cyphos; enantioselectivity; enzymes; esterification; excess; lipase; reaction; water cache: hjic-459.pdf plain text: hjic-459.txt item: #430 of 680 id: hjic-460 author: Prettl, Zs.; Lepossa, A.; Tóth, É.; Kelemen-Horváth, I.; Németh, Á. Sz.; Nagy, E. title: Effects and changes of zearalenone and fumonisin contamination in corn-based bioethanol process date: 2011 words: 3049 flesch: 47 summary: In this work dry-grind ethanol production was carried out from different corn samples (uncontaminated; zearalenone; fumonisin B1+B2 contaminated) and the changes of the ratio of the solid-liquid phase as well as toxin concentrations were examined in laboratory scale. Similar conversion efficiencies could be observed at the end of the fermentation process, though the specific ethanol yield was 27% lower in the case of contaminated corn stock (Table 3). keywords: corn; ethanol; fb1; fumonisin; fusarium; maize; mycotoxins; phase; process; toxin; zearalenone cache: hjic-460.pdf plain text: hjic-460.txt item: #431 of 680 id: hjic-461 author: Lévai, Gy.; Berta, M.; Király, Cs.; Falus, Gy.; Gresits, I.; Székely, E.; Szabó, Cs. title: Effects of supercritical carbon dioxide on rocks having carbon dioxide storage potential date: 2011 words: 2920 flesch: 49 summary: In the kinetic experiments calcite samples of 0.2–0.3 mm diameter size were mixed in 5 w/w% NaCl solution as model brine. High pressure kinetic experiments A set of experiments with pure calcite samples was run by sampling the liquid phase of the solid – liquid – fluid heterogeneous reaction system. keywords: brine; calcite; co2; fig; formation; pressure; samples; scco2; storage; surface cache: hjic-461.pdf plain text: hjic-461.txt item: #432 of 680 id: hjic-462 author: Németh, J.; Verdes, S. title: Flow pattern within hydrocyclone date: 2011 words: 7090 flesch: 54 summary: Figure 5: Tangential velocity distributions In all the three cases the diameters of the hydrocyclones, the quantity of input liquid flow, its velocity and pressure were near identical. Figure 8: Tangential velocity distribution in case of a fluid with different viscosity Theoretically it was only to be expected, because neither in the whirl rotating as a rigid body neither in the potential whirl the viscosity does not play a role. keywords: air; case; core; diameter; distributions; figure; flow; hydrocyclone; kelsall; liquid; particle; radial; velocity; velocity distributions cache: hjic-462.pdf plain text: hjic-462.txt item: #433 of 680 id: hjic-485 author: , title: Editorial Preface date: 2014 words: 245 flesch: 21 summary: traditional, intelligent, adaptive, etc.) • process monitoring and supervision • system identification and signal processing • bioengineering • traffic control • reaction kinetic networks • modelling of complex systems (classical, hierarchical, Bayesian, fuzzy, networks) • image processing and pattern recognition • artificial intelligence • soft computing (neural, genetic, fuzzy algorithms, etc.) • software (parallel computing, distributed and network computing, data visualization) • decision making (decision support, data mining) • applications of systems and control theory You are invited to participate at the 14th International PhD Workshop in Veszprém in 2015! keywords: control cache: hjic-485.pdf plain text: hjic-485.txt item: #434 of 680 id: hjic-486 author: Max, György; Lantos, Béla title: A Comparison of Advanced Non-linear State Estimation Techniques for Ground Vehicles date: 2014 words: 4736 flesch: 66 summary: The aim is to produce invariant frames and invariant output errors to transform a locally asymptotically convergent observer around an equilibrium point into an invariant one, retaining its first-order approximation. The following statements are valid: • (x̂,u, y)→ E(x̂,u, y) invariant output error exists, • there is a (x̂,u)→ I(x̂,u)∈ℝn+m&r invariant function, • every other invariant output error has the form of ! keywords: estimation; k|k−1; observer; sigma; state cache: hjic-486.pdf plain text: hjic-486.txt item: #435 of 680 id: hjic-487 author: Salai, Mario; Tuboly, Gergely; Vassányi, István; Kósa, István title: Telemedical Heart Rate Measurements for Lifestyle Counselling date: 2014 words: 3330 flesch: 54 summary: The mean RR interval values and standard deviation of RR intervals are very close to those of the reference device using both the synchronization and data validation algorithms. Two tabs in the top left-hand corner allow the user to switch between synchronization and data validation algorithms. keywords: algorithm; cardiosport; data; device; error; signal; validation cache: hjic-487.pdf plain text: hjic-487.txt item: #436 of 680 id: hjic-488 author: Patartics, Bálint; Kiss, Bálint title: The Application of Unknown Input Estimators to Damp Load Oscillations of Overhead Cranes date: 2014 words: 4320 flesch: 71 summary: This paper focuses on the development of state estimation methods for mechanical systems with uncertain frictional pa- rameters. [8] LANTOS B.: Theory and design of control systems I., Akadémia Kiadó, 2001 (in Hungarian) keywords: estimation; friction; input; state; system; time; ukf cache: hjic-488.pdf plain text: hjic-488.txt item: #437 of 680 id: hjic-489 author: Dobos, Sándor; Kovács, Attila title: Challenges of Enterprise Policy Compliance with Smartphone Enablement or an Alternative Solution Based on Behaviour-based User Identification date: 2014 words: 4696 flesch: 53 summary: Association between network nodes could be defined as the connections of the applications (calls, connections, as web access), usually resources are connecting together. • Based on the above elements, network nodes and associations provide the details to calculate the association matrix. keywords: behaviour; connections; data; device; enterprise; graph; management; mdm; network; nodes; security; set; user cache: hjic-489.pdf plain text: hjic-489.txt item: #438 of 680 id: hjic-49 author: Dencs, J.; Dencs, B.; Marton, G. title: Chemical Utilization of Biomass I: Starch Modification in Batch Type Solid Phase Reactor date: 2003 words: 3053 flesch: 54 summary: The laboratory experiments related to the development of starch based flocculants were of two kinds, preparation of polyelectrolytes and testing of the best products in different applications. Production of modified starch in the pilot scale reactor The chemical reaction is performed in the solid phase. keywords: flocculants; reaction; reactor; starch; temperature; weight cache: hjic-49.pdf plain text: hjic-49.txt item: #439 of 680 id: hjic-490 author: Göllei, Attila; Görbe, Péter; Magyar, Attila; Neukirchner, László title: Measurement-based Modelling and Simulation of a Hydrogengenerating Dry Cell for Complex Domestic Renewable Energy Systems date: 2014 words: 2728 flesch: 51 summary: We tested it in a simulation of a complex domestic power plant using a renewable energy source and hydrogen generation cell. Two unknown functional relationships between the generated H2 volume, the cell current and the KOH concentration and between cell voltage, cell current and KOH concentration were approximated using fourth and third order polynomials, respectively Figure 2: The setup of a HHO gas generator cell block Table 1: Experimental results Electrolyte concentration, g dm-3 MMWa, cm3 min-1 W-1 Gas production, dm3 min-1 Power of unit, W 1 2.13 0.20 10.8 2 2.66 0.75 34.4 3 2.66 1.37 55.8 4 2.59 1.51 82.2 5 2.72 1.90 90.6 6 2.63 2.52 119.5 7 2.67 2.96 140.0 8 2.65 2.76 125.0 9 2.46 2.28 105.6 10 1.82 2.15 103.2 a millilitres per minute per watt 87 using the Matlab Surface Fitting Tool. keywords: cell; energy; gas; hydrogen; model cache: hjic-490.pdf plain text: hjic-490.txt item: #440 of 680 id: hjic-491 author: Neukirchner, László; Magyar, Attila title: Quasi-polynomial Representation-based Control of Mechanical Systems date: 2014 words: 2804 flesch: 64 summary: Quasi-polynomial systems are good candidates for a general nonlinear system representation, since their global stability analysis is equivalent to the feasibility of a linear matrix inequality. The classical stabilizing state feedback problem for quasi-polynomial systems was extended with the ability of tracking time-dependent reference signals. keywords: controller; form; quasi; robot cache: hjic-491.pdf plain text: hjic-491.txt item: #441 of 680 id: hjic-492 author: Bálint, Levente; Dulai, Tibor; Stark-Werner, Ágnes; Apostol, Gergely; Tompos, Ádám title: A Network Model for Simulating the Dynamic Behaviour of an Energy Distribution Network date: 2014 words: 2936 flesch: 54 summary: The biggest problem of power distribution networks in reality is to satisfy all consumers at all the time, even if the load is very low, without making large changes to the output of the power sources everyday. Power sources have an environmental multiplier. keywords: consumers; energy; network; power; simulation; sources; system cache: hjic-492.pdf plain text: hjic-492.txt item: #442 of 680 id: hjic-493 author: Lipták, György; Szederkényi, Gábor; M. Hangos, Katalin title: On the Parametric Uncertainty of Weakly Reversible Realizations of Kinetic Systems date: 2014 words: 2775 flesch: 61 summary: The existence of weakly reversible realizations within a given convex domain is investigated. It is shown that the domain of weakly reversible realizations is convex in the parameter space. keywords: kinetic; system cache: hjic-493.pdf plain text: hjic-493.txt item: #443 of 680 id: hjic-494 author: Fodor, Attila; Bálint, Roland; Magyar, Attila; Szederkényi, Gábor title: Stability and Parameter Sensitivity Analyses of an Induction Motor date: 2014 words: 2628 flesch: 63 summary: As the final aim of our research is to estimate the param- eters of a particular Grundfos IM, first of all the resis- tances (Rs and Rr) of the IM were measured. We ac- knowledge also the investigated IM of Grundfos Hungary Producer Ltd. SYMBOLS C1, C2, C3 constant F damping constant φqs and φds q and d components of the stator flux φ′qr and φ′dr q and d components of the reduced rotor flux H inertia constant iqs and ids q and d components of the stator current i′qr and i′dr q and d components of the reduced rotor current Lm mutual inductance p number of pole pairs Rr and Lr rotor resistance and inductance R′r and L′r reduced value of rotor resistance and inductance Rs and Ls stator resistance and inductance vd and vq q and d components of the stator voltage ω angular velocity of the magnetic field ωr angular velocity of the rotor Tmech mechanical torque REFERENCES keywords: analysis; model; state cache: hjic-494.pdf plain text: hjic-494.txt item: #444 of 680 id: hjic-495 author: , title: Downloadable Full Issue date: 2014 words: 33357 flesch: 60 summary: x : ↵ p �x�1 y : � p �y�1 ✓ : �✓�1 ↵ : �↵�1 � : ↵��1 � : � p ���1✏�1, y��1✏�1, ���1✏�1, x���1✏�1, y��1��1/2✏�1, ↵��1✏�1, y↵��1✏�1, x��1��1/2✏�1 � : ↵��1/2, x��1, x↵��1/2, x2��1, ���1/2, y��1, y���1/2, y2��1 ✏ : ↵✏�1, x↵✏�1, x✏�1��1/2, x2✏�1��1/2, �✏�1, y�✏�1, y✏�1��1/2, y2✏�1��1/2, (25) The QP system Eq.(21-24) can obtain the GLV form in- variants with the help of monomials. ˙✓ = ✓ ✓ Kh� ✓ �Kh ◆ ↵̇ = ↵ ✓ �� ↵ ◆ ˙� = � ✓ ↵ � ◆ (21) �̇ = �· ⇣ � 2Kv� p � �✏ + Kvy �✏ �Kvxg� �✏ + keywords: = �; algorithm; analysis; cell; control; controller; data; design; device; energy; error; estimation; feedback; figure; following; form; graph; hungary; hydrogen; linear; matrix; mobile; model; network; non; observer; order; output; p �; pannonia; parameters; point; power; results; s �; set; signals; simulation; state; system; time; university; veszprém; y �; ↵ �; ✏ �; � d; � qs; � r; � t; � ✏; � � cache: hjic-495.pdf plain text: hjic-495.txt item: #445 of 680 id: hjic-496 author: , title: Downloadable Full 2014 Issue date: 2014 words: 66231 flesch: 56 summary: x : ↵ p �x�1 y : � p �y�1 ✓ : �✓�1 ↵ : �↵�1 � : ↵��1 � : � p ���1✏�1, y��1✏�1, ���1✏�1, x���1✏�1, y��1��1/2✏�1, ↵��1✏�1, y↵��1✏�1, x��1��1/2✏�1 � : ↵��1/2, x��1, x↵��1/2, x2��1, ���1/2, y��1, y���1/2, y2��1 ✏ : ↵✏�1, x↵✏�1, x✏�1��1/2, x2✏�1��1/2, �✏�1, y�✏�1, y✏�1��1/2, y2✏�1��1/2, (25) The QP system Eq.(21-24) can obtain the GLV form in- variants with the help of monomials. ˙✓ = ✓ ✓ Kh� ✓ �Kh ◆ ↵̇ = ↵ ✓ �� ↵ ◆ ˙� = � ✓ ↵ � ◆ (21) �̇ = �· ⇣ � 2Kv� p � �✏ + Kvy �✏ �Kvxg� �✏ + keywords: = �; abs; algorithm; analysis; application; average; biogas; case; cell; chemical; chemistry; cnt; complex; components; composites; concentration; control; core; coupling; crn; data; design; device; difference; distribution; dm-3; effect; efficiency; egyetem; energy; engineering; error; estimation; feedback; figure; following; form; function; grain; graph; hungarian; hungary; hydrogen; identification; kinetic; laboratory; ldpe; linear; materials; matrix; measurements; method; mobile; model; monitoring; mpa; network; new; number; order; p �; pannonia; parameters; particle; pet; phase; point; power; pre; process; production; properties; rate; reaction; research; results; s �; samples; set; simulation; size; sorghum; state; steam; steps; stover; strength; structure; study; surface; system; table; tensile; test; time; treatment; university; values; veszprém; waste; water; y �; ↵ �; ✏ �; � d; � qs; � r; � t; � � cache: hjic-496.pdf plain text: hjic-496.txt item: #446 of 680 id: hjic-50 author: Dencs, J.; Marton, Z.; Dencs, B.; Marton, G. title: Chemical Utilization of Biomass II: Preparation of Adsorbents from Wheat Straw to Eliminate Cupric and Zinc Ions of Industrial Wastewaters date: 2003 words: 1937 flesch: 60 summary: There have been several extended Langmuir models applied to multicomponent sorption systems. Equilibrium relationships between sorbent and sorbate are described by sorption isotherms. keywords: component; equilibrium; langmuir; mmol; sorption cache: hjic-50.pdf plain text: hjic-50.txt item: #447 of 680 id: hjic-508 author: Gergely, András; Kristóf, Tamás title: Corrosion Protection with Ultrathin Graphene Coatings: a Review date: 2021 words: 18445 flesch: 53 summary: Nevertheless, coherence, and uniformity of Gr coatings are apparently vital to achieve good corrosion protection. Pure Graphene Coatings Direct Chemical Vapour Deposition (CVD) on Metal Surfaces Early studies were inspired to synthesise full surface covering Gr films of the highest domain (single sheet) size and integrity to exert impermeability over macroscopically large surfaces. keywords: bare; barrier; carbon; cell; chemical; coatings; composite; concentration; conditions; copper; corrosion; corrosion protection; cvd; deposition; electrode; epd; films; gr films; graphene; gro; growth; kim; layer; mater; metal; min; nano; nickel; oxidation; oxide; potential; pressure; protection; rate; resistance; samples; solution; steel; substrate; surface; times; wt.% cache: hjic-508.pdf plain text: hjic-508.txt item: #448 of 680 id: hjic-509 author: Solymosi, Péter; Varga, Zoltán; Hancsók, Jenő title: Investigations of Bio-gasoil Production date: 2021 words: 2984 flesch: 56 summary: [17] KASZA T., KALLÓ D., HANCSÓK J.: Quality improvement of bio-paraffin mixtures, Fuel, 2014, 120, 1-7 Techn., 2011, 92(5), 886-892 [8] SOLYMOSI P., BALADINCZ P., HANCSÓK J.: Production of motor fuels by the hydrogenation of rapeseed oil with high euric acid content, Proc. 19th EU Biomass Conference and Exhibition, Berlin, Germany, 2011, 2077-2081 keywords: bio; fuels; gasoil; hancsók; oil; paraffin; production; properties cache: hjic-509.pdf plain text: hjic-509.txt item: #449 of 680 id: hjic-51 author: Vaklieva-Bancheva, N. G.; Shopova, E. G.; Ivanov, B. B. title: Application of Fourier Transformation for Waste Minimization in Batch Plants. 2. Process-Units Assignment date: 2003 words: 5040 flesch: 62 summary: I – number of products; ID – units/tasks identification matrix L – number of production tasks; %MC – casein content in the skim-milk; MI – amount of material input to the task [kg]; %ML –lactose content in the skim-milk; MO – amount of material output from the task [kg]; %MP –protein content in the skim-milk; N – number of key components in used materials NB – number of batches; P – number of plant units Q – production demand [kg]; Q-I, Q-II – names of production demands used in the example; R – waste processed in the task [kg]; RC – recovery factor for casein; RF – recovery factor for milkfat; RS – solids recovery factor; %SC – solids content in curds; T – processing time [h]; TC – cycle time [h]; Ts – starting time of task with regard to the cycle beginning; V – apparatus volume [m3]; WL% – inherent loss of whey; X – vector of the key components; m – mass of waste processed from the production task per 1 kilogram target product The mass wl))n,i(X(m of the pollutant - w , for products i , can be determined from the pollutants mass balance of the production recipes as it is proposed in [5, 6]: ,)i(C.)i(MO))n,i(X(R)i(C.)i(MI ))n,i(X(Y 1))n,i(X(m lj l'j wjjwlwjjwl       −+= ∑ ∑ ∈ ∈ Ii,i,Ll,l,Ww,w,Nn,n ii ∈∀∈∀∈∀∈∀ (12) where: )i(MI and )i(MO note the amount of materials input into processing task l of product i by the flows j and output by the flows; )i(C is the composition of pollutant )i(C w is the relevant flow; ))n,i(X(R is the waste produced in the task l . keywords: batch; production; products; task cache: hjic-51.pdf plain text: hjic-51.txt item: #450 of 680 id: hjic-510 author: Hodai, Zoltán; Rippel-Pethő, Dóra; Horváth, Géza; Hanák, László; Bocsi, Róbert title: The Energy Balance of Separation Opportunities in Microalgae Technologies date: 2021 words: 2687 flesch: 41 summary: The utilisation of carbon dioxide by algae technologies depends on the technical environment and logistics of teamwork. Algae technology utilises waste gases and some environmentally harmful components from wastewaters as nutrients, and thus purifies the growth media. keywords: algae; biomass; carbon; dioxide; energy; microalgae; production; research; separation; technology cache: hjic-510.pdf plain text: hjic-510.txt item: #451 of 680 id: hjic-511 author: Molnár, Éva; Rippel-Pethő, Dóra; Bocsi, Róbert title: Solid-liquid Extraction of Chlorophyll from Microalgae from Photoautotroph Open-air Cultivation date: 2021 words: 2268 flesch: 51 summary: In the Figure 2: Changes in chlorophyll concentration during the Soxhlet measurements Figure 3: The efficiency of chlorophyll extraction of the various solvents during Soxhlet extraction Figure 4: Change in chlorophyll concentration as a function of mass during leaching Figure 5: Efficiency of leaching using the various solvents 122 experiments conducted with acetone, it was observed that the extraction efficiency of chlorophyll a or chlorophyll b is greatly dependent on the conditions. Knowing the mass and water content of the algae, the efficiency of chlorophyll extraction relative to the mass of the dry algae can be calculated. keywords: algae; chlorophyll; extraction; methanol; solvent; soxhlet cache: hjic-511.pdf plain text: hjic-511.txt item: #452 of 680 id: hjic-512 author: Boda, Dezső; Gillespie, Dirk title: Calculating the Electrostatic Potential Profiles of Double Layers from Simulation Ion Density Profiles date: 2021 words: 6236 flesch: 65 summary: �1) = � d (x) dx ���� x!�1 = 0 (9) and the same for x ! A special MC step, where a small amount of charge, ��, is transferred from one electrode to the other, has been introduced. keywords: charge; chem; ensemble; phys; potential; simulation; voltage cache: hjic-512.pdf plain text: hjic-512.txt item: #453 of 680 id: hjic-513 author: Sólya, János; Miskolczi, Norbert title: Degradation of Reinforced and Unreinforced Waste Polyamides During Mechanical Recycling date: 2021 words: 2908 flesch: 49 summary: The paper discusses the degradation of waste polyamides during mechanical recycling from the automotive sector. Conclusions We investigated the reprocessing of waste glass fibre reinforced and unreinforced polyamide 6.6 materials. keywords: cycles; glass; mpa; number; polyamide; properties; reprocessing; tensile cache: hjic-513.pdf plain text: hjic-513.txt item: #454 of 680 id: hjic-514 author: , title: Downloadable Full Issue date: 2021 words: 36051 flesch: 53 summary: [9] YU S., LIU M., MA M., QI M., LÜ Z., GAO C.: Impacts of membrane properties on reactive dye removal from dye/salt mixtures by asymmetric cellulose acetate and composite polyamide nanofiltration membranes, J. Membrane Sci., 2010, 350(1-2), 83-91 Nevertheless, coherence, and uniformity of Gr coatings are apparently vital to achieve good corrosion protection. keywords: algae; average; bare; bio; carbon; case; cell; charge; chem; chemical; chlorophyll; coatings; composite; concentration; conditions; copper; corrosion; cvd; density; deposition; electrode; energy; ensemble; extraction; figure; films; graphene; gro; growth; hungary; layer; materials; metal; microalgae; nickel; number; oxidation; oxide; paraffin; parameters; phase; phys; polymer; potential; pressure; properties; protection; rate; results; samples; simulation; size; solution; steel; substrate; surface; technology; temperature; times; university; veszprém; voltage; waste cache: hjic-514.pdf plain text: hjic-514.txt item: #455 of 680 id: hjic-515 author: , title: Downloadable Full 2013 Issue date: 2021 words: 84077 flesch: 54 summary: Input-output event sequences Operational procedures in process systems are detailed list of instructions for the plant operator personnel to 60 perform certain operations on the plant. Component based structural decomposition The above mentioned fault diagnosis based on the P- HAZID analysis is only developed for process systems 61 Table 1: A simple example of a P-HAZID table. keywords: activity; algae; algorithm; aluminium; analysis; application; average; bare; capacitor; carbon; case; cell; charge; chemical; coatings; component; concentration; conditions; constant; constraints; control; copper; corrosion; current; data; deposition; development; electrode; energy; engineering; ensemble; event; example; extraction; fault; figure; films; flatness; flow; following; function; gas; graphene; heat; hungarian; hungary; industrial; industry; information; injection; input; journal; layer; level; line; linear; manufacturing; materials; matrix; measurement; metal; method; microalgae; model; new; number; occurrence; operation; order; output; oxidation; pannonia; parameters; phase; phys; place; point; potential; power; pressure; probability; problem; process; process control; process data; process system; processes; production; properties; quality; range; rate; reconciliation; research; resource; results; samples; second; set; simulation; size; software; solution; state; structure; study; surface; system; table; tank; techniques; technology; temperature; test; time; type; university; use; values; variables; vehicle; velocity; veszprém; voltage; work; � � cache: hjic-515.pdf plain text: hjic-515.txt item: #456 of 680 id: hjic-518 author: László, A.; Árva, P. title: Application of Analog Computers for the Measurement and Evaluation of Residence Time Distribution date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 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The Significance of Modern Algebraic Methods in Chemical Systems Engineering date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 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RENON H. and PRAUSNITZ J. M.: AIChE J, 1968, 1, 135-144 5. REID R. C., PRAUSNITZ J. M. and POOLING E. B.: in Properties of Gases and Liquids, 4-rd, McGraw Hill Book Co., New York, pp. keywords: chem; data; dimethyl; sulfoxide; system; unifac; values; viscosity cache: hjic-52.pdf plain text: hjic-52.txt item: #459 of 680 id: hjic-520 author: Brickle, T.; Ormós, Z. title: Studies on the Hydrodynamics of Fluidized Layers I. Measuring Methods for the Determination of the Expansion of Fluidized Layers date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 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Material Systems And Changes date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 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Streaming of Fluid, Particle Motion and Layer Expansion in Systems Fluidized With a Liquid date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 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Methods for Testing the Physical Properties of Granulates date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 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Incentives for process control education For the mathematical modelling purpose the CAPE application serves as a useful provider of accurate process experimental data and a versatile process input (manipulated) variable function generator keywords: application; computer; control; controller; data; pilot; process cache: hjic-53.pdf plain text: hjic-53.txt item: #470 of 680 id: hjic-530 author: Brickle, T.; Bátor, E. title: Determination of Optimum Parameters in Connection with Transportation with a Gas Stream date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 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The Investigation of the Models of Absorption Columns date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 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G. title: Investigation of the Deep Hydrodesulphurization of Gas Oil Fractions date: 2003 words: 4632 flesch: 47 summary: On the basis of experimental results the advantageous process parameters were determined for producing diesel fuel blending components of sulphur content lower than 50 ppm and lower than 10 ppm. On the basis of experimental results the advantageous process parameters were determined for producing diesel fuel blending components of sulphur content lower than 50 ppm and lower than 10 ppm. keywords: content; feed; lhsv; ppm; sulphur; temperature cache: hjic-54.pdf plain text: hjic-54.txt item: #481 of 680 id: hjic-540 author: Árva, P.; Szeifert, F. title: Mathematical Modelling of Absorption Columns II. Parameter Sensitivity and Methods for its Calculation date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 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The Practical Use of the Parameter Sensitivity Concept date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 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Page 581 Page 582 Page 583 Page 584 keywords: page cache: hjic-546.pdf plain text: hjic-546.txt item: #488 of 680 id: hjic-547 author: Ormós, Z.; Pataki, K.; Csukás, B. title: Studies on Granulation in a Fluidized Bed III. Calculation of the Feed Rate of Granulating Liquid date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 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Effects of the Characteristic of the Fluidized Bed the Atomization and the Air Distributor Upon the Physical Properties of the Granulates date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 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436 Page 437 Page 438 Page 439 Page 440 Page 441 Page 442 Page 443 Page 444 Page 445 Page 446 Page 447 Page 448 Page 449 Page 450 Page 451 Page 452 Page 453 Page 454 Page 455 Page 456 Page 457 Page 458 Page 459 Page 460 Page 461 Page 462 Page 463 Page 464 Page 465 Page 466 Page 467 Page 468 Page 469 Page 470 Page 471 Page 472 Page 473 Page 474 Page 475 Page 476 Page 477 Page 478 Page 479 Page 480 Page 481 Page 482 Page 483 Page 484 Page 485 Page 486 Page 487 Page 488 Page 489 Page 490 Page 491 Page 492 Page 493 Page 494 Page 495 Page 496 Page 497 Page 498 Page 499 Page 500 Page 501 Page 502 Page 503 Page 504 Page 505 Page 506 Page 507 Page 508 Page 509 Page 510 Page 511 Page 512 Page 513 Page 514 Page 515 Page 516 Page 517 Page 518 Page 519 Page 520 Page 521 Page 522 Page 523 Page 524 Page 525 Page 526 Page 527 Page 528 Page 529 Page 530 Page 531 Page 532 Page 533 Page 534 Page 535 Page 536 Page 537 Page 538 Page 539 Page 540 Page 541 Page 542 Page 543 Page 544 Page 545 Page 546 Page 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Calculation of Layer Expansion in Systems Fluidized With a Liquid date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 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444 Page 445 Page 446 Page 447 Page 448 Page 449 Page 450 Page 451 Page 452 Page 453 Page 454 Page 455 Page 456 Page 457 Page 458 Page 459 Page 460 Page 461 Page 462 Page 463 Page 464 Page 465 Page 466 Page 467 Page 468 Page 469 Page 470 Page 471 Page 472 Page 473 Page 474 Page 475 Page 476 Page 477 Page 478 Page 479 Page 480 Page 481 Page 482 Page 483 Page 484 Page 485 Page 486 Page 487 Page 488 Page 489 Page 490 Page 491 Page 492 Page 493 Page 494 Page 495 Page 496 Page 497 Page 498 Page 499 Page 500 Page 501 Page 502 Page 503 Page 504 Page 505 Page 506 Page 507 Page 508 Page 509 Page 510 Page 511 Page 512 Page 513 Page 514 Page 515 Page 516 Page 517 Page 518 Page 519 Page 520 Page 521 Page 522 Page 523 Page 524 Page 525 Page 526 Page 527 Page 528 Page 529 Page 530 Page 531 Page 532 Page 533 Page 534 Page 535 Page 536 Page 537 Page 538 Page 539 Page 540 Page 541 Page 542 Page 543 Page 544 Page 545 Page 546 Page 547 Page 548 Page 549 Page 550 Page 551 Page 552 Page 553 Page 554 Page 555 Page 556 Page 557 Page 558 Page 559 Page 560 Page 561 Page 562 Page 563 Page 564 Page 565 Page 566 Page 567 Page 568 Page 569 Page 570 Page 571 Page 572 Page 573 Page 574 Page 575 Page 576 Page 577 Page 578 Page 579 Page 580 Page 581 Page 582 Page 583 Page 584 keywords: page cache: hjic-549.pdf plain text: hjic-549.txt item: #491 of 680 id: hjic-55 author: Miskolczi, N.; Bartha, L.; Deák, Gy.; Jóver, B. title: Conversion of Waste HDPE and LDPE into Feed Stocks in Tube Reactor date: 2003 words: 4558 flesch: 64 summary: Table 3 represents the main properties of each distillate fraction in case of HDPE and LDPE wastes. It was found that LDPE waste degradation products have a little higher –CH3 content, because of their chemical structure. keywords: cracking; hdpe; ldpe; products; temperature; waste; wsl cache: hjic-55.pdf plain text: hjic-55.txt item: #492 of 680 id: hjic-550 author: Ujhidy, A.; Szépvölgyi, J.; Szabó, Z. title: Verfahren zur Herstellung von Fettsäuerzuckerestern date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 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Transformations of Material Systems date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 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Page 582 Page 583 Page 584 keywords: page cache: hjic-553.pdf plain text: hjic-553.txt item: #496 of 680 id: hjic-554 author: , title: Downloadable Full 1973 Issue date: 1973 words: 1168 flesch: -1063 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 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433 Page 434 Page 435 Page 436 Page 437 Page 438 Page 439 Page 440 Page 441 Page 442 Page 443 Page 444 Page 445 Page 446 Page 447 Page 448 Page 449 Page 450 Page 451 Page 452 Page 453 Page 454 Page 455 Page 456 Page 457 Page 458 Page 459 Page 460 Page 461 Page 462 Page 463 Page 464 Page 465 Page 466 Page 467 Page 468 Page 469 Page 470 Page 471 Page 472 Page 473 Page 474 Page 475 Page 476 Page 477 Page 478 Page 479 Page 480 Page 481 Page 482 Page 483 Page 484 Page 485 Page 486 Page 487 Page 488 Page 489 Page 490 Page 491 Page 492 Page 493 Page 494 Page 495 Page 496 Page 497 Page 498 Page 499 Page 500 Page 501 Page 502 Page 503 Page 504 Page 505 Page 506 Page 507 Page 508 Page 509 Page 510 Page 511 Page 512 Page 513 Page 514 Page 515 Page 516 Page 517 Page 518 Page 519 Page 520 Page 521 Page 522 Page 523 Page 524 Page 525 Page 526 Page 527 Page 528 Page 529 Page 530 Page 531 Page 532 Page 533 Page 534 Page 535 Page 536 Page 537 Page 538 Page 539 Page 540 Page 541 Page 542 Page 543 Page 544 Page 545 Page 546 Page 547 Page 548 Page 549 Page 550 Page 551 Page 552 Page 553 Page 554 Page 555 Page 556 Page 557 Page 558 Page 559 Page 560 Page 561 Page 562 Page 563 Page 564 Page 565 Page 566 Page 567 Page 568 Page 569 Page 570 Page 571 Page 572 Page 573 Page 574 Page 575 Page 576 Page 577 Page 578 Page 579 Page 580 Page 581 Page 582 Page 583 Page 584 keywords: page cache: hjic-554.pdf plain text: hjic-554.txt item: #497 of 680 id: hjic-556 author: Pakowski, Z. title: Computer Drawing of Enthalphy-Humidity Charts date: 1986 words: 2628 flesch: 66 summary: \ \ < \ \ \ \ \ \ \ a. \ \ \ \ \ \ .. \ \ \~ \ \ \ \ \ N\ \ \ \ \ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \\ \ \ \ \ \ \ o \ \ cb. 100. gl~~t~'~~\11~~í~~t~1~~1~1~~ís)t~~=jf\~\{t~~~~i\~\i\t~it\~~t~J~~f~~~\~\t~Jt~f~~~~f;j\ \ \ \ \ \ \ \ \ \ \ \ o \ \ \ \ ~. o 200_ ji 400. keywords: chart; enthalpy; gas; humidity; lines; plotter; temperature cache: hjic-556.pdf plain text: hjic-556.txt item: #498 of 680 id: hjic-56 author: Rouzineau, D.; Meyer, M.; Prevost, M.; Reneaume, J. M.; Druart, F. title: Non-equilibrium Model and Experimental Validation for Reactive Distillation date: 2003 words: 5980 flesch: 56 summary: Discretisation is used to write the bulk phase equations with the set of model equation, Newton’s method and homotopy continuation are used. The boundary values which must thus check these equations are the molar fractions and enhancement of equilibrium reaction. keywords: column; equations; equilibrium; flow; liquid; mass; model; reaction; vapour;  ;  ;  ;   cache: hjic-56.pdf plain text: hjic-56.txt item: #499 of 680 id: hjic-57 author: Sisak, Cs.; Kovács, Á.; Szajáni, B.; Boross, L.; Orosz, L. title: Solid-Phase Tryptophan Synthase Biocatalysts and Their Application in Integrated Bioconversion System date: 2003 words: 2379 flesch: 49 summary: An integrated system constructed as a combination of the alternately working bioconversion and product adsorption steps has been proved to be applicable for tryptophan production and showed about 30 % higher productivity than the simple biotransformation system. Cell adsorption onto Celite-560 beads has resulted in sufficient productivity and recycling properties. keywords: adsorption; biocatalyst; cm3; phase; product; system; tryptophan cache: hjic-57.pdf plain text: hjic-57.txt item: #500 of 680 id: hjic-632 author: , title: Editorial Preface date: 2015 words: 575 flesch: 44 summary: In this Thematic Issue of the Hungarian Journal of Industry and Chemistry, selected papers are presented from the Conference program that represent some of the important topics of the water sector: e.g. heavy metal removal from waste water and monitoring the bioavailability of heavy metals in river catchment areas; nitrogen removal from municipal waste water; mineralisation of herbicides in water; equilibrium calculations to solve complex aqueous speciation problems; photocatalytic remediation of pesticide-contaminated ground water; purification of dairy-food waste water via biofilms, and novel plasma spectroscopic methods in the analysis of aqueous solution. Although water is available in vast quantities on Earth, the amount of fresh water is only approximately 3% of the total. keywords: issue; water cache: hjic-632.pdf plain text: hjic-632.txt item: #501 of 680 id: hjic-633 author: Gulyás, Gábor; Pitás, Viktória; Fazekas, Bence; Kárpáti, Árpád title: Heavy Metal Balance in a Communal Wastewater Treatment Plant date: 2015 words: 3282 flesch: 63 summary: The sludge reprocessing and reuse pose no problems in the plant with respect to heavy metal content. The mechanism of heavy metal removal in the activated sludge process is not completely understood yet keywords: content; metal; plant; removal; sludge; treatment cache: hjic-633.pdf plain text: hjic-633.txt item: #502 of 680 id: hjic-634 author: Heltai, György; Fekete, Ilona; Halász, Gábor; Kovács, Katalin; Horváth, Márk; Takács, Anita; Boros, Norbert; Győri, Zoltán title: Multi-Elemental Inductively Coupled Plasma-Optical Emission Spectroscopic Calibration Problems of the Sequential Extraction Procedure for the Fractionation of the Heavy Metal Content from Aquatic Sediments date: 2015 words: 4653 flesch: 55 summary: For the characterisation of the environmental mobility of heavy metal contamination in aquatic sediments, the EU Bureau of Reference has proposed a fractionation by sequential extraction procedure. In Chemical speciation in the environment, Eds.: Ure, A.M.; Davidson, C.M. (Blackie Academic and Professional, London, U.K.) 1995, pp. 237- 275 [5] Tessier, A.; Campbell, P.G.C.; Bisson, M.: Sequential extraction procedure for the speciation of particulate trace metals, Anal. keywords: bcr; calibration; extraction; metal; procedure; sediments; step cache: hjic-634.pdf plain text: hjic-634.txt item: #503 of 680 id: hjic-635 author: Kassai, Zsófia title: Nitrogen Removal Controlled by an Ammonium-Analyser at the North Pest Wastewater Treatment Plant date: 2015 words: 2153 flesch: 58 summary: Keywords: wastewater treatment, nitrogen removal, nitrification, denitrification, ammonium- analyser, operation control, periodic aeration 1. Effluent total nitrogen values between July and December 2010. keywords: aeration; line; nitrogen; sludge; wastewater cache: hjic-635.pdf plain text: hjic-635.txt item: #504 of 680 id: hjic-636 author: Győri, Zoltán; Boros, Norbert; Sipos, Péter; Bertáné Szabó, Emese; Kovács, Katalin; Horváth, Márk; Takács, Anita; Heltai, György title: Heavy Metal Balance in a Communal Wastewater Treatment Plant date: 2015 words: 2805 flesch: 61 summary: [19] Szabó, Sz.; Posta, J.; Gosztonyi, Gy.; Mészáros, I.; Prokisch, J.: Heavy metal content of flood sediments and plants near the River Tisza, AGD Landscape Environ., 2008 2, 120–131 ISSN 1789- 7556 Keywords: River Tisza, floodplain soils, heavy metal pollution, Lakanen-Erviö extraction, nitric acid/peroxide extraction 1. keywords: contents; metals; pollution; river; soil; tisza; vásárosnamény cache: hjic-636.pdf plain text: hjic-636.txt item: #505 of 680 id: hjic-637 author: Alapi, Tünde; Simon, Gergő; Veréb, Gábor; Kovács, Krisztina; Arany, Eszter; Schrantz, Krisztina; Dombi, András; Hernádi, Klára title: Toxicology Aspects of the Decomposition of Diuron by Advanced Oxidation Processes date: 2015 words: 5160 flesch: 42 summary: Direct UV photolysis is a quite selective method for the transformation of organic substances and can be effective for the transformation of compounds, which highly absorb at 254 nm (such as diuron and probably its aromatic intermediates), mainly by the dissociation of the carbon-halogen bond. The initial rates of transformation of diuron are in the order of ozonation < heterogeneous photocatalysis < UV photolysis < combination of UV photolysis and ozonation. keywords: case; combination; decomposition; diuron; ozonation; photocatalysis; photolysis; transformation; uv photolysis cache: hjic-637.pdf plain text: hjic-637.txt item: #506 of 680 id: hjic-638 author: Földényi, Rita; Marton, Aurél title: Organisation of the Analytical, Stoichiometric, and Thermodynamic Information for Water Chemistry Calculations date: 2015 words: 4237 flesch: 58 summary: For the calculation of the unknown concentration of S species, we need the S stoichiometrically independent equation. 33–38 (2015) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2015-0006 ORGANISATION OF THE ANALYTICAL, STOICHIOMETRIC, AND THERMODYNAMIC INFORMATION FOR WATER CHEMISTRY CALCULATIONS RITA FÖLDÉNYI* AND AURÉL MARTON Department of Environmental Science, University of Pannonia, Egyetem u. 10., Veszprém, 8200, HUNGARY A common feature of the chemical processes of the hydrosphere and water treatment plants is that essentially the same types of chemical equilibrium reactions occur in both fields. keywords: components; equations; equilibrium; matrix; species; system cache: hjic-638.pdf plain text: hjic-638.txt item: #507 of 680 id: hjic-639 author: Guba, Sándor; Somogyi, Viola; Szabóné Bárdos, Erzsébet title: Groundwater Remediation Using Biological and Photocatalytic Methods date: 2015 words: 2796 flesch: 48 summary: [2] Solymosné Majzik, E.: Determination of concentration of pesticide active ingredients in groundwater and surface water samples applying various SPE methods, PhD thesis (University of Pannonia, Veszprém, Hungary) 2006 (in Hungarian) Keywords: heterogeneous photocatalysis, groundwater remediation, quizalofop-P-ethyl, acetamiprid, biological treatment 1. keywords: case; concentration; dm-3; methods; photocatalysis; reactor; treatment; water cache: hjic-639.pdf plain text: hjic-639.txt item: #508 of 680 id: hjic-640 author: Gulyás, Gábor; Fazekas, Bence; Varga, Regina; Kárpáti, Árpád title: Biological Purification of Chemically Pre-Treated Dairy Wastewater Before Discharge into a Municipal Sewage Systems date: 2015 words: 1932 flesch: 53 summary: Dairy wastewater contains a high amount of dissolved and suspended solids. Keywords: activated sludge, biofilm, dairy wastewater, chemical oxygen demand, nutrient-poor wastewater 1. Introduction Milk processing requires high specific water consumption and considerable raw material waste effluents [1]. keywords: biofilm; dairy; oxygen; sludge; wastewater cache: hjic-640.pdf plain text: hjic-640.txt item: #509 of 680 id: hjic-641 author: Bánhidi, Olivér title: Study of the Interference Effects of Aluminium on The Atom- and Ion-Lines of Alkaline Earth Metals in Aqueous Solutions Using an ICP Spectrometer with Axially Viewed Plasma date: 2015 words: 2507 flesch: 59 summary: Higher aluminium concentrations cause only a moderate reduction in the signal. 3. Results In the experiments, we studied the intensity changes of several atom- and ion-lines of the alkaline earth metals as a function of aluminium concentration, analyte concentration and that of the device used for sample- introduction. keywords: concentration; dm-3; lines; nebuliser cache: hjic-641.pdf plain text: hjic-641.txt item: #510 of 680 id: hjic-642 author: , title: Downloadable Full Issue date: 2015 words: 33837 flesch: 52 summary: The technology and sampling points for checking heavy metal concentrations. The sludge reprocessing and reuse pose no problems in the plant with respect to heavy metal content. keywords: case; chemical; chemistry; concentration; content; diuron; dm-3; doi; engineering; environmental; extraction; figure; hungarian; hungary; industry; journal; light; lines; matrix; metal; nebuliser; nitrogen; ozonation; photocatalysis; photolysis; plant; process; rate; removal; research; results; samples; sludge; soil; species; system; table; total; treatment; university; values; wastewater; wastewater treatment; water cache: hjic-642.pdf plain text: hjic-642.txt item: #511 of 680 id: hjic-644 author: Barakat, Y.; Gendy, T.S.; Ibrahim, V.; Mead, A.I. title: Krafft-Clear Point Diagrams For Some Sodium 1,4 di-n-Alkylbenzene Sulphonates date: 1997 words: 3683 flesch: 63 summary: A regular decrease in Krafft point is seen in presence of 2 wt.% NaCl. At the same salinity, the effect of alcohol molecular weight, on Krafft point, is illustrated in Fig.3. keywords: 1,4; krafft; nacl; point; solution; sulphonates cache: hjic-644.pdf plain text: hjic-644.txt item: #512 of 680 id: hjic-669 author: Henderson, Douglas title: Some Analytic Expressions for the Capacitance and Profiles of the Electric Double Layer Formed by Ions Near an Electrode date: 2015 words: 8805 flesch: 70 summary: The solid and broken curves give the results of the hybrid approach and GCS theory, respectively. by Islam et al. Because the MSA is a linearized theory, the MC, MSA, and GCS capacitances are for σ = 0. capacitance and everything else is ‘lumped’ into the in- ner layer capacitance. keywords: capacitance; charge; chem; electrode; gcs; henderson; layer; msa; results; theory cache: hjic-669.pdf plain text: hjic-669.txt item: #513 of 680 id: hjic-670 author: Szalkai, István; Sebestyén, Attila; Della-Vecchia, Biancamaria; Kristóf, Tamás; Kótai, László; Bódi, Ferenc title: Comparison of Two Variable Interpolation Methods for Predicting the Vapour Pressure of Aqueous Glycerol Solutions date: 2015 words: 2953 flesch: 60 summary: Comparison of interpolation methods for predicting the vapour pressure of aqueous glycerol solutions, Proc. Comparison of interpolation methods for predicting the vapour pressure of aqueous glycerol solutions, Preprint No. 036 (University of Veszprém, Veszprém, Hungary) 1995 math.uni- pannon.hu/~szalkai/Szalkai-1995Preprint-Glic.pdf [6] Kiss B.: Plants oil industry and household tables (Mezőgazdasági Kiadó, Budapest, Hungary) 1988 (in Hungarian) keywords: data; glycerol; interpolation; method; points; pressure; shepard; solutions cache: hjic-670.pdf plain text: hjic-670.txt item: #514 of 680 id: hjic-671 author: Hao, Le Cong; Thuy, Mai Dinh; Hieu, Do Trung; Sas, Zoltán title: Comparison of Decontamination Standards date: 2015 words: 3522 flesch: 44 summary: [8] Varga, K.; Baradlai, P.; Hirschberg, G.; Nemeth, Z.; Oravetz, D.; Schunk, J.; Tilky, P.: Corrosion behaviour of stainless steel surfaces formed upon chemical decontamination, Electrochim. Decontamination factors for MSZ-05 22.7662-83 using the adsorption method (Table 2). keywords: 137cs; 60co; case; decontamination; ease; hungarian; iso; standard cache: hjic-671.pdf plain text: hjic-671.txt item: #515 of 680 id: hjic-672 author: Cuong, Le Phuoc; Giang, Pham Hoang; Hanh, Bui Dang; Bátor, Gergő title: A Study of the Adsorption Characteristics of Cobalt and Caesium from a Solution by Using Vietnamese Bentonite date: 2015 words: 2783 flesch: 55 summary: In the presence of EDTA in radioactive waste solution, radioactive isotopes could not be adsorbed onto VNB due to forming stronger complexes with EDTA We are planntng to scale up the UV system to include the optimisation of pH values and the effect of ammonium converted from EDTA in order to apply these findings to radioactive solution waste on a large scale. keywords: adsorption; bentonite; co(ii; dm-3; vnb; waste cache: hjic-672.pdf plain text: hjic-672.txt item: #516 of 680 id: hjic-673 author: Megyeri, Gábor; Nemestóthy, Nándor; Polakovic, Milan; Bélafi-Bakó, Katalin; Gubicza, László title: Application of Ionic Liquids in the Utilization of the Agricultural Wastes: Towards the One-step Pre-treatment And Cellulose Hydrolysis date: 2015 words: 2857 flesch: 56 summary: Keywords: ionic liquid, enzyme, hydrolysis, glucose, agricultural waste, lignocellulose 1. Ionic liquids are salts with low melting points keywords: cellic; cellulose; doi; glucose; hydrolysis; pre; treatment cache: hjic-673.pdf plain text: hjic-673.txt item: #517 of 680 id: hjic-674 author: Ryemshak, Solomon A.; Jauro, Aliyu; Chindo, Istifanus Y.; Ekanem, Eno O. title: Mineral Matter in Nigerian Coals and Tar Sand and their Implications in Binary Blend Formulation and Co-carbonisation date: 2015 words: 3411 flesch: 56 summary: Coal samples from Afuze (AFZ) and Chikila (CHK) were found to contain quartz, hematite, and anhydride as the dominant minerals. The observed minerals are commonly reported in coal samples worldwide [10]. keywords: ash; coal; coke; furnace; matter; mineral; quartz; samples; sand; slag; tar cache: hjic-674.pdf plain text: hjic-674.txt item: #518 of 680 id: hjic-675 author: Aljubourya, Dheeaa Al Deen Atallah; Palaniandy, Puganeshwary; Aziz, Hamidi Bin Abdul; Feroz, Shaik title: Comparative Study of Advanced Oxidation Processes to Treat Petroleum Wastewater date: 2015 words: 2836 flesch: 51 summary: Under acidic conditions, the solar photo-Fenton process is more efficient than solar TiO2 photocatalysis while it is less efficient under alkaline conditions. According to previous results [13], the solar photo- Fenton process is more efficient for petroleum wastewater treatment than solar TiO2 photocatalysis under acidic conditions. keywords: cod; fenton; h2o2; petroleum; photocatalysis; processes; tio2; wastewater cache: hjic-675.pdf plain text: hjic-675.txt item: #519 of 680 id: hjic-676 author: , title: Downloadable Full Issue date: 2015 words: 29384 flesch: 58 summary: J. Coal Geol., 2002, 50(1), 135–168 DOI: 10.1016/S0166-5162(02)00117-9 J. Coal Geol., 2002, 50, 289–412 DOI: 10.1016/S0166-5162(02)00123-4 [ keywords: adsorption; ash; capacitance; case; cellulose; charge; chem; chemistry; coal; concentration; data; decontamination; doi; electrode; fenton; figure; gcs; henderson; hungarian; ions; layer; liquid; method; mineral; msa; photocatalysis; processes; results; samples; solution; standard; study; surface; table; theory; tio2; treatment; university; values; � d/2; � � cache: hjic-676.pdf plain text: hjic-676.txt item: #520 of 680 id: hjic-677 author: Smigielski, Krzysztof; Góra, Józef; Kula, Józef title: The Fuzzy Experimental Multiobjective Optimization of the Electrochemical Reduction Process of Maleic Acid to Succinic Acid date: 1992 words: 648 flesch: -535 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 148 Page 149 Page 150 Page 151 Page 152 Page 153 Page 154 Page 155 Page 156 Page 157 Page 158 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 166 Page 167 Page 168 Page 169 Page 170 Page 171 Page 172 Page 173 Page 174 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180 Page 181 Page 182 Page 183 Page 184 Page 185 Page 186 Page 187 Page 188 Page 189 Page 190 Page 191 Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Page 200 Page 201 Page 202 Page 203 Page 204 Page 205 Page 206 Page 207 Page 208 Page 209 Page 210 Page 211 Page 212 Page 213 Page 214 Page 215 Page 216 Page 217 Page 218 Page 219 Page 220 Page 221 Page 222 Page 223 Page 224 Page 225 Page 226 Page 227 Page 228 Page 229 Page 230 Page 231 Page 232 Page 233 Page 234 Page 235 Page 236 Page 237 Page 238 Page 239 Page 240 Page 241 Page 242 Page 243 Page 244 Page 245 Page 246 Page 247 Page 248 Page 249 Page 250 Page 251 Page 252 Page 253 Page 254 Page 255 Page 256 Page 257 Page 258 Page 259 Page 260 Page 261 Page 262 Page 263 Page 264 Page 265 Page 266 Page 267 Page 268 Page 269 Page 270 Page 271 Page 272 Page 273 Page 274 Page 275 Page 276 Page 277 Page 278 Page 279 Page 280 Page 281 Page 282 Page 283 Page 284 Page 285 Page 286 Page 287 Page 288 Page 289 Page 290 Page 291 Page 292 Page 293 Page 294 Page 295 Page 296 Page 297 Page 298 Page 299 Page 300 Page 301 Page 302 Page 303 Page 304 Page 305 Page 306 Page 307 Page 308 Page 309 Page 310 Page 311 Page 312 Page 313 Page 314 Page 315 Page 316 Page 317 Page 318 Page 319 Page 320 Page 321 Page 322 Page 323 Page 324 keywords: page cache: hjic-677.pdf plain text: hjic-677.txt item: #521 of 680 id: hjic-681 author: Makranczy, J.; Mrs. Megyery-Balog, K.; Rusz, L.; Patyi, L. title: Solubility of Gases in Normal-alkanes date: 1976 words: 650 flesch: -537 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 148 Page 149 Page 150 Page 151 Page 152 Page 153 Page 154 Page 155 Page 156 Page 157 Page 158 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 166 Page 167 Page 168 Page 169 Page 170 Page 171 Page 172 Page 173 Page 174 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180 Page 181 Page 182 Page 183 Page 184 Page 185 Page 186 Page 187 Page 188 Page 189 Page 190 Page 191 Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Page 200 Page 201 Page 202 Page 203 Page 204 Page 205 Page 206 Page 207 Page 208 Page 209 Page 210 Page 211 Page 212 Page 213 Page 214 Page 215 Page 216 Page 217 Page 218 Page 219 Page 220 Page 221 Page 222 Page 223 Page 224 Page 225 Page 226 Page 227 Page 228 Page 229 Page 230 Page 231 Page 232 Page 233 Page 234 Page 235 Page 236 Page 237 Page 238 Page 239 Page 240 Page 241 Page 242 Page 243 Page 244 Page 245 Page 246 Page 247 Page 248 Page 249 Page 250 Page 251 Page 252 Page 253 Page 254 Page 255 Page 256 Page 257 Page 258 Page 259 Page 260 Page 261 Page 262 Page 263 Page 264 Page 265 Page 266 Page 267 Page 268 Page 269 Page 270 Page 271 Page 272 Page 273 Page 274 Page 275 Page 276 Page 277 Page 278 Page 279 Page 280 Page 281 Page 282 Page 283 Page 284 Page 285 Page 286 Page 287 Page 288 Page 289 Page 290 Page 291 Page 292 Page 293 Page 294 Page 295 Page 296 Page 297 Page 298 Page 299 Page 300 Page 301 Page 302 Page 303 Page 304 Page 305 Page 306 Page 307 Page 308 Page 309 Page 310 Page 311 Page 312 Page 313 Page 314 Page 315 Page 316 Page 317 Page 318 Page 319 Page 320 Page 321 Page 322 Page 323 Page 324 Page 325 keywords: page cache: hjic-681.pdf plain text: hjic-681.txt item: #522 of 680 id: hjic-682 author: Mizsey, P.; Mészáros, I.; Fonyó, Z. title: Computer Evaluation of Distillation Processes with Parallel Streams date: 1992 words: 668 flesch: -555 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 148 Page 149 Page 150 Page 151 Page 152 Page 153 Page 154 Page 155 Page 156 Page 157 Page 158 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 166 Page 167 Page 168 Page 169 Page 170 Page 171 Page 172 Page 173 Page 174 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180 Page 181 Page 182 Page 183 Page 184 Page 185 Page 186 Page 187 Page 188 Page 189 Page 190 Page 191 Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Page 200 Page 201 Page 202 Page 203 Page 204 Page 205 Page 206 Page 207 Page 208 Page 209 Page 210 Page 211 Page 212 Page 213 Page 214 Page 215 Page 216 Page 217 Page 218 Page 219 Page 220 Page 221 Page 222 Page 223 Page 224 Page 225 Page 226 Page 227 Page 228 Page 229 Page 230 Page 231 Page 232 Page 233 Page 234 Page 235 Page 236 Page 237 Page 238 Page 239 Page 240 Page 241 Page 242 Page 243 Page 244 Page 245 Page 246 Page 247 Page 248 Page 249 Page 250 Page 251 Page 252 Page 253 Page 254 Page 255 Page 256 Page 257 Page 258 Page 259 Page 260 Page 261 Page 262 Page 263 Page 264 Page 265 Page 266 Page 267 Page 268 Page 269 Page 270 Page 271 Page 272 Page 273 Page 274 Page 275 Page 276 Page 277 Page 278 Page 279 Page 280 Page 281 Page 282 Page 283 Page 284 Page 285 Page 286 Page 287 Page 288 Page 289 Page 290 Page 291 Page 292 Page 293 Page 294 Page 295 Page 296 Page 297 Page 298 Page 299 Page 300 Page 301 Page 302 Page 303 Page 304 Page 305 Page 306 Page 307 Page 308 Page 309 Page 310 Page 311 Page 312 Page 313 Page 314 Page 315 Page 316 Page 317 Page 318 Page 319 Page 320 Page 321 Page 322 Page 323 Page 324 Page 325 Page 326 Page 327 Page 328 Page 329 Page 330 Page 331 Page 332 Page 333 Page 334 keywords: page cache: hjic-682.pdf plain text: hjic-682.txt item: #523 of 680 id: hjic-683 author: Eisenberg, Robert S. title: Mass Action and Conservation of Current date: 2016 words: 23048 flesch: 59 summary: In general, the conservation of current law illustrated in Eq.(5) is violated IXY ≠ IYZ, (8) for a range of concentrations, rate constants, or charges. It is important to note that the continuity of current law has important biological implications in systems more general than a series of chemical reactions. keywords: action; case; channels; charge; chemical; conditions; conservation; continuity; current; devices; displacement; eisenberg; equations; field; flow; law; mass; new; potential; rate; reactions; semiconductor; solutions; systems; theories; theory; time; vacuum; world; york cache: hjic-683.pdf plain text: hjic-683.txt item: #524 of 680 id: hjic-684 author: Tóth, András József; Szanyi, Ágnes; Haaz, Enikő; Mizsey, Péter title: Separation of Process Wastewater with Extractive Heterogeneous-Azeotropic Distillation date: 2016 words: 2371 flesch: 45 summary: [10] Franke, M.; Gorak, A.; Strube, J.: Design and optimisation of hybrid separation processes, Chem. 4. Conclusion EHAD separation technique improves in the separation of heterogeneous azeotropic mixtures. keywords: azeotropic; distillation; ehad; liquid; mixtures; process; separation cache: hjic-684.pdf plain text: hjic-684.txt item: #525 of 680 id: hjic-685 author: Talibov, Misirkhan; Safarov, Javid title: Vapour Pressure of Ethanol and 1-propanol Binary Mixtures date: 2016 words: 3828 flesch: 63 summary: Experimental mole fraction x of 1-propanol, and vapour pressure P (in Pa) of a solution of (1-x)C2H5OH + x C3H7OH a Temperature mole fraction of 1-propanol (x) (K) 0.0000b 0.0989 0.1918 0.4034 0.5935 0.7971 0.9038 1.0000c 274.15 1684 1490 1374 1116 897 672 530 515 278.15 2248 1980 1843 1498 1219 902 739 697 283.15 3155 2810 2620 2149 1761 1330 1102 1008 293.15 5842 5390 5023 4186 3442 2670 2260 2034 303.15 10458 9762 9180 7780 6521 5150 4402 3854 Plot of vapour pressure P (in kPa) of a (1-x) C2H5OH + x C3H7OH solution mixture as a function of 1-propanol mole fraction x. ¿, 274.15 K; ¢, 278.15 K; ▲, 283.15 K; �, 293.15 K; ▼, 303.15 K; Ò, 313.15 K; Ì, 323.15 K; ¯, 333.15 K; £, 343.15 K; r, 353.15 K; �, 363.15 K; s, 373.15 K; °, 383.15 K; ⊕, 393.15 K; «, 403.15 K; ¶, 413.15 K, ◐, 423.15 K; x, 433.15 K; ◑, 443.15 K; lines fit to Eqs.(3) and (4). keywords: ethanol; mole; pressure; propanol; temperature; vapour cache: hjic-685.pdf plain text: hjic-685.txt item: #526 of 680 id: hjic-686 author: Dörgő, Gyula; Abonyi, János title: Group Contribution Method-based Multi-objective Evolutionary Molecular Design date: 2016 words: 7337 flesch: 61 summary: In the case of CAMD problems, explicit constraints are evaluated through property estimation methods, these can be, for example, critical properties, solubility indexes, normal boiling points, etc. As the new molecules created in the ‘reverse’ problem are evaluated via property estimation methods to verify the satisfaction of properties, the success of CAMD tasks depends on, to a large extent, the reliability of the estimation method being used. keywords: algorithm; design; doi; groups; number; properties; property; set; solutions cache: hjic-686.pdf plain text: hjic-686.txt item: #527 of 680 id: hjic-687 author: Bobek, Janka; Rippel-Pethő, Dóra; Molnár, Éva; Bocsi, Róbert title: Selective Hydrogen Sulphide Removal from Acid Gas by Alkali Chemisorption in a Jet Reactor date: 2016 words: 2229 flesch: 58 summary: Effect of H2S Concentration The influence of H2S concentration on the efficiency of H2S removal was investigated under a nearly constant CO2 level (76 and 72% (m3/m3)) and greatly differing H2S (85 and 520 ppmv) containing model gases. Effect of different H2S concentrations on the efficiency of H2S removal (gas mixtures 5-6, 30 bar, 0.09 s residence time, 1.5% (g/g) NaOH). keywords: co2; efficiency; gas; h2s; removal cache: hjic-687.pdf plain text: hjic-687.txt item: #528 of 680 id: hjic-688 author: Gergely, András; Locskai, Roland; Szabó, Péter; Krójer, Antal; Kristóf, Tamás title: Hydrogen Sulphide Corrosion of Carbon and Stainless Steel Alloys Immersed in Mixtures of Renewable Fuel Sources and Tested under Co-processing Conditions date: 2016 words: 12118 flesch: 50 summary: A greater degree of failure to develop protective sulphide scales was experienced by changing to composition of the biomass fuel sources than the impact of thermal activation between a narrow temperature range at around 100ºC. In accordance with the literature, high free fatty acid contents lead to high corrosion rates accounted for direct corrosion of high alloy steels and assisted solubilisation of corrosion products. SEM-EDS composition (in atomic %) of the corrosion product of sulphide corrosion scales removed from the surface of carbon steel coupons (1.0425) immersed in raw gas oil tested at a temperature of 250 °C and pressure of 90 bar. keywords: acid; alloys; biomass; carbon; corrosion; corrosion rates; doi; experiments; gas; gas oil; hydrogen; lard; oil; phase; pressure; rates; reaction; scales; sources; steel; steel alloys; sulphide; sulphide corrosion; temperature; time; waste cache: hjic-688.pdf plain text: hjic-688.txt item: #529 of 680 id: hjic-689 author: , title: Downloadable Full Issue date: 2016 words: 52518 flesch: 57 summary: In accordance with the literature, high free fatty acid contents lead to high corrosion rates accounted for direct corrosion of high alloy steels and assisted solubilisation of corrosion products. [25] Deb, K.; Agrawal, S.; Pratap, A.; Meyarivan, T.: A fast elitist non-dominated sorting genetic algorithm for multi-objective optimization: NSGA-II, in Parallel problem solving from nature PPSN (Eds.: Schoenauer VI, M.: Deb, K.; Rudolph, G.; Yao, X.; Lutton, E.; Merelo, J. J.; Schwefel, H.-P., Springer, Berlin, Germany) 2000 pp. keywords: acid; action; algorithm; alloys; carbon; case; channels; charge; chemical; chemistry; concentration; conditions; conservation; corrosion; current; design; devices; displacement; doi; effect; eisenberg; energy; equations; experiments; field; flow; function; gas; groups; h2s; hungarian; hydrogen; industry; journal; law; mass; method; mixtures; model; new; non; number; oil; phase; potential; pressure; process; properties; property; range; rates; reactions; removal; results; scales; set; solutions; steel; sulphide; systems; table; temperature; theory; time; university; vacuum; values; vapour; york cache: hjic-689.pdf plain text: hjic-689.txt item: #530 of 680 id: hjic-693 author: Gór-Nagy, S.; Káldi, P.; Mrs. Bésán, J.; Szántó, A. title: The Solubility of Micronutrients in Ammonium Polyphosphate Solutions date: 1978 words: 828 flesch: -718 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 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words: 5220 flesch: 58 summary: Information systems often Figure 2. A Pilot System in Budapest The aim of the pilot system presented in this paper is to demonstrate how a Mobility Management Centre equipped with the necessary information and information systems can provide tailor-made multimodal route advice to individual users by not only taking into account the average state of the transport network, but incorporating the current demand, too. keywords: data; demand; information; management; mobility; network; period; route; system; time; traffic; transport cache: hjic-698.pdf plain text: hjic-698.txt item: #533 of 680 id: hjic-699 author: Tar, Szabolcs; Fodor, Attila title: Cloud-Based Application for Smart Grid Simulation date: 2016 words: 1958 flesch: 48 summary: This project offers solutions to these challenges: modelling of distribution networks, forecasts of renewable energy sources distributed generation (RES-DG), micro-grid management and responses to demand in new, complex solutions. Keywords: renewable energy, smart grid, demand response, cyber-security, network assets 1. keywords: consumption; energy; grid; information; power; service cache: hjic-699.pdf plain text: hjic-699.txt item: #534 of 680 id: hjic-700 author: Milán, Sőrés; Fodor, Attila title: Simulation of Electrical Grid with OMNET++ Open Source Discrete Event System Simulator date: 2016 words: 4386 flesch: 67 summary: Keywords: energy transmission, electrical networks simulation, distributed energy systems 1. 85–91 (2016) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2016-0010 SIMULATION OF ELECTRICAL GRID WITH OMNET++ OPEN SOURCE DISCRETE EVENT SYSTEM SIMULATOR MILÁN SŐRÉS AND ATTILA FODOR* Department of Electrical Engineering and Information Systems, University of Pannonia, Egyetem út 10., Veszprém, 8200, HUNGARY The simulation of electrical networks is very important before development and servicing of electrical networks and grids can occur. keywords: current; network; omnet++; simulation cache: hjic-700.pdf plain text: hjic-700.txt item: #535 of 680 id: hjic-701 author: Pál, Miklós; Láner, Gábor title: Mobile Data Synchronization Methods date: 2016 words: 4219 flesch: 60 summary: Finally, the third solution is a distributed NoSQL implementation of mobile data synchronization. The last measured value is the size of mobile database after data synchronization. keywords: application; data; database; mobile; rest; server; service; soap; synchronization; time cache: hjic-701.pdf plain text: hjic-701.txt item: #536 of 680 id: hjic-702 author: Bálint, Roland; Magyar, Attila title: Refrigerator Optimal Scheduling to Minimize the Cost of Operation date: 2016 words: 3196 flesch: 66 summary: The multiplication of the sample time and the horizon yields to predicted time horizon. The MPT toolbox for the PWA system description uses discrete time models, thus initially the continuous time model must be discretised. keywords: algorithm; horizon; input; model; refrigerator; size; time cache: hjic-702.pdf plain text: hjic-702.txt item: #537 of 680 id: hjic-703 author: Neukirchner, László; Magyar, Attila title: Modelling a Three-Phase Current Source Inverter date: 2016 words: 3776 flesch: 67 summary: Keywords: model predictive control, current source inverter, space vector modulation, modelling, simulation 1. Calculating Dwell-Time The dwell time for stationary vectors represents the time that space vectors spend in a sector during TS. keywords: current; inverter; space; state; switching; time cache: hjic-703.pdf plain text: hjic-703.txt item: #538 of 680 id: hjic-704 author: Polcz, Péter; Szederkényi, Gábor title: Computational Stability Analysis of Lotka-Volterra Systems date: 2016 words: 4423 flesch: 63 summary: Therefore, extensive literature exists on the computational construction of Lyapunov functions Recently, an optimization-based method for DOA estimation was published [4], where the authors use Finsler’s lemma and affine parameter-dependent LMIs to compute rational Lyapunov functions for a wide class of locally asymptotically stable nonlinear systems. keywords: function; lyapunov; polytope 𝒳; system cache: hjic-704.pdf plain text: hjic-704.txt item: #539 of 680 id: hjic-705 author: Pózna, Anna I.; Gerzson, Miklós; Leitold, Adrien; Hangos, Katalin M. title: Diagnosis of Technological Systems Based on the Structural Decomposition of their Coloured Petri Net Model date: 2016 words: 5855 flesch: 61 summary: Conclusion A novel method for online fault diagnosis in a technological system is described in this paper. Petri nets and their different extensions (such as coloured, timed or hierarchical nets) are powerful tools for modelling discrete event systems keywords: diagnosis; fault; graph; occurrence; system; tank; trace cache: hjic-705.pdf plain text: hjic-705.txt item: #540 of 680 id: hjic-706 author: Zaini, Muhammad Abbas Ahmad; Shaid, Mohd Shafiq Mohd title: Metal Chloride-Activated Empty Fruit-Bunch Carbons for Rhodamine B Removal date: 2016 words: 3431 flesch: 56 summary: 129–133 (2016) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2016-0016 METAL-CHLORIDE-ACTIVATED EMPTY FRUIT-BUNCH CARBONS FOR RHODAMINE B REMOVAL MUHAMMAD ABBAS AHMAD ZAINI1,2* AND MOHD SHAFIQ MOHD SHAID1 1 Faculty of Chemical & Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor, 81310, MALAYSIA 2 Centre of Lipids Engineering & Applied Research, Ibnu Sina Institute for Scientific & Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, 81310, MALAYSIA This study aimed to investigate the adsorptive ability of activated carbons derived from empty boil palm fruit- bunch carbons through metal-chloride activation. Rhodamine B dye was used as a pollutant probe to evaluate the performance of activated carbons. keywords: activation; adsorption; area; bunch; carbon; efb; fruit; rhodamine; surface cache: hjic-706.pdf plain text: hjic-706.txt item: #541 of 680 id: hjic-707 author: Halmagyi, Timea; Mosonyi, Emilia; Fazekas, József; Spataru, Maria; Goga, Firuta title: Characterisation of Cements from Dominantly Volcanic Raw Materials of the Carpathian Bend Zone date: 2016 words: 3482 flesch: 54 summary: Physical properties of cement samples C1-C5. Physico–mechanical properties of cement samples C1-C5. keywords: belite; cement; doi; sample; setting; specific; strength; table; volcanic cache: hjic-707.pdf plain text: hjic-707.txt item: #542 of 680 id: hjic-708 author: , title: Downloadable Full Issue date: 2016 words: 41477 flesch: 61 summary: The nodes of the graph refer to system states and the arcs connecting them refer to state transitions, e.g. events. Keywords: energy transmission, electrical networks simulation, distributed energy systems 1. keywords: 44(2; algorithm; application; area; case; cement; chemistry; control; current; data; database; diagnosis; doi; energy; fault; figure; function; graph; hjic-2016; horizon; hungarian; hungary; industry; information; input; journal; level; lyapunov; management; matrix; method; mobile; model; module; network; new; number; point; power; process; results; service; set; simulation; size; solution; state; surface; synchronization; system; table; tank; time; traffic; transport; university; values; variables; vector; voltage cache: hjic-708.pdf plain text: hjic-708.txt item: #543 of 680 id: hjic-709 author: Bodor, Beáta; Lakatos, Béla G.; Blickle, Tibor title: Characterization of Crystal Populations of Vitamin C by Hyperbolic Tangent Distribution Functions date: 1993 words: 668 flesch: -555 summary: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 148 Page 149 Page 150 Page 151 Page 152 Page 153 Page 154 Page 155 Page 156 Page 157 Page 158 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 166 Page 167 Page 168 Page 169 Page 170 Page 171 Page 172 Page 173 Page 174 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180 Page 181 Page 182 Page 183 Page 184 Page 185 Page 186 Page 187 Page 188 Page 189 Page 190 Page 191 Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Page 200 Page 201 Page 202 Page 203 Page 204 Page 205 Page 206 Page 207 Page 208 Page 209 Page 210 Page 211 Page 212 Page 213 Page 214 Page 215 Page 216 Page 217 Page 218 Page 219 Page 220 Page 221 Page 222 Page 223 Page 224 Page 225 Page 226 Page 227 Page 228 Page 229 Page 230 Page 231 Page 232 Page 233 Page 234 Page 235 Page 236 Page 237 Page 238 Page 239 Page 240 Page 241 Page 242 Page 243 Page 244 Page 245 Page 246 Page 247 Page 248 Page 249 Page 250 Page 251 Page 252 Page 253 Page 254 Page 255 Page 256 Page 257 Page 258 Page 259 Page 260 Page 261 Page 262 Page 263 Page 264 Page 265 Page 266 Page 267 Page 268 Page 269 Page 270 Page 271 Page 272 Page 273 Page 274 Page 275 Page 276 Page 277 Page 278 Page 279 Page 280 Page 281 Page 282 Page 283 Page 284 Page 285 Page 286 Page 287 Page 288 Page 289 Page 290 Page 291 Page 292 Page 293 Page 294 Page 295 Page 296 Page 297 Page 298 Page 299 Page 300 Page 301 Page 302 Page 303 Page 304 Page 305 Page 306 Page 307 Page 308 Page 309 Page 310 Page 311 Page 312 Page 313 Page 314 Page 315 Page 316 Page 317 Page 318 Page 319 Page 320 Page 321 Page 322 Page 323 Page 324 Page 325 Page 326 Page 327 Page 328 Page 329 Page 330 Page 331 Page 332 Page 333 Page 334 keywords: page cache: hjic-709.pdf plain text: hjic-709.txt item: #544 of 680 id: hjic-745 author: , title: Editorial Preface date: 2017 words: 665 flesch: 63 summary: László Rácz was the Head of the Chemistry Department in Eger when Professor Liszi joined to teach Physical Chemistry there. He was the head of the Department of Physical Chemistry for many years. keywords: chemistry; eger cache: hjic-745.pdf plain text: hjic-745.txt item: #545 of 680 id: hjic-746 author: Baranyai, András title: Dynamical Temperature from the Phase Space Trajectory date: 2017 words: 1455 flesch: 58 summary: This work shows that for ergodic dynamical systems the dynamical temperature can be derived using phase space trajectories. [2] Butler, B.D.;Ayton, G.A.;Jepps, O.G.;Evans, D.J.: Configurational temperature: Verification of Monte Carlo simulations, J. Chem. keywords:  ;  ;   cache: hjic-746.pdf plain text: hjic-746.txt item: #546 of 680 id: hjic-747 author: Nemestóthy, Nándor title: Separation of Gases by Membranes: The Effects of Pollutants on the Stability of Membranes date: 2017 words: 2010 flesch: 54 summary: Similar levels of membrane degradation are observed in proton-exchange membrane (PEM) fuel cells and batteries containing membranes, where oxi- dising compounds are in contact with the membranes, as well [4-5]. The damaging effects of H2S, BTX and n-dodecane were investigated in terms of polyimide gas separation membranes using nitrogen gas. keywords: btx; gas; h2s; membranes; permeability; pollutants cache: hjic-747.pdf plain text: hjic-747.txt item: #547 of 680 id: hjic-748 author: Kristóf, Tamás title: Selective Removal of Hydrogen Sulphide from Industrial Gas Mixtures Using Zeolite NaA date: 2017 words: 4899 flesch: 53 summary: Gas adsorption simulations were carried out by the standard grand canonical Monte Carlo methodology Molecular simulation predictions for mixture adsorption from two- and three-component gas mixtures containing hydrogen sulphide (H2S), hydrogen (H2) and methane (CH4) are presented. keywords: adsorption; chem; data; doi; gas; h2s; hydrogen; mixtures; naa; simulation; sulphide; zeolite cache: hjic-748.pdf plain text: hjic-748.txt item: #548 of 680 id: hjic-749 author: Szabó, László; Kubovicsné Stocz, Klára; Szabó, Laura; Németh, Sándor; Szeifert, Ferenc title: Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column date: 2017 words: 3107 flesch: 57 summary: On the lower level of the control hierarchy controllers were created which facilitated normal operating conditions of the column (pressure and liquid- level controllers) and eliminated the disturbances of the environment (mass flowrate controllers). The resulting inferential calculations have already been implemented and are available for the operators to facilitate quality control. keywords: analysis; column; controllers; quality; simulator; structure cache: hjic-749.pdf plain text: hjic-749.txt item: #549 of 680 id: hjic-750 author: Tóth, Gergely; Szepesváry, Pál title: Replacement of Biased Estimators with Unbiased Ones in the Case of Student's T-Distribution and Geary’S Kurtosis date: 2017 words: 2975 flesch: 61 summary: Finally, some remarks are made on statistical tests based on sample-size dependent values in order to ex- tend their applicability to small sample sizes. The performance of the last three tests was rather weak for small sample sizes, whereof one cause might be the lack of correction for small sample sizes even for normally distributed data. keywords: distribution; kurtosis; sample; size; student cache: hjic-750.pdf plain text: hjic-750.txt item: #550 of 680 id: hjic-751 author: Valicsek, Zsolt; P. Kiss, Melitta; A. Fodor, Melinda; Imran, Muhammad; Horváth, Ottó title: Formation, Photophysics, Photochemistry and Quantum Chemistry of the Out-of-Plane Metalloporphyrins date: 2017 words: 5284 flesch: 44 summary: Higher temperatures and thermodynamic control are also necessary for the insertion of metal ions into the cavity produced by four pyrrolic nitrogens; resulting in the formation of typical metalloporphyrin complexes. Its planar structure with an extended conjugated π-electron system provides aromatic characteristics and a special coordination cavity for the binding of metal ions of suitable radius [1-2]. keywords: complexes; coordination; formation; horváth; ions; metal; metalloporphyrins; plane; type; valicsek cache: hjic-751.pdf plain text: hjic-751.txt item: #551 of 680 id: hjic-752 author: Fónagy, Orsolya; Hegedűs, Péter; Szabó-Bárdos, Erzsébet; Dobrádi, Annamária; Horváth, Ottó title: Improvement Possibilities of Heterogeneous Photocatalysis with the Aim of In-Field Use date: 2017 words: 7431 flesch: 48 summary: [19] Ishibashi, K. I.; Fujishima, A.; Watanabe, T.; Hashimoto, K.: Detection of active oxidative species in TiO2 photocatalysis using the fluorescence technique, Electrochem. Irradiation of the immobilized catalysts in the absence of the model compound led to the dissolution of the side-products of the cracking processes, and they also underwent heterogeneous photocatalytic degradation due to the presence of TiO2. keywords: acid; catalyst; concentration; degradation; formation; hydroxyl; irradiation; photocatalysis; pva; radicals; rate; surface; tio2; toc; treatment cache: hjic-752.pdf plain text: hjic-752.txt item: #552 of 680 id: hjic-753 author: Sebestyén, Viktor; Somogyi, Viola; Szőke, Szandra; Utasi, Anett title: Adapting the Sdewes Index to Two Hungarian Cities date: 2017 words: 7124 flesch: 56 summary: ��,����� = ���,������max���,��� �min���,���max���,��� (1) ��,����� = ���,������min���,��� �max���,���min���,��� (2) Value aggregation is done according to SDEWES���� = ∑ ∑ �� � ��� ��,����� � ��� , (3) where ∑ �� = 1� ��� and αx is the weight of the xth dimension. keywords: cities; city; co2; consumption; data; energy; hungarian; index; indicator; max �; min �; sdewes; veszprém; water; zalaegerszeg; � � cache: hjic-753.pdf plain text: hjic-753.txt item: #553 of 680 id: hjic-754 author: Gerencsér, Fruzsina; Rieder, Norbert; Varga, Csilla; Hancsók, Jenő; Dallos, András title: Surface Energy Heterogeneity Profiles of Carbon Nanotubes with a Copolymer-Modified Surface Using Surface Energy Mapping by Inverse Gas Chromatography date: 2017 words: 4010 flesch: 47 summary: Howev- er, previous papers have presented surface energy val- ues for functionalized CNTs over unclear surface cover- ages without energetic profiles and surface energy dis- tribution functions, which, therefore, could not give correct information on the surface of the CNTs. However, the anchoring of olefin- maleic-anhydride-ester-amide (OMAEA) up on the MWCNTs surface caused a marked decrement in dis- persive part of surface energy from ~110 mJ/m2 to ~48 mJ/m2 at 353 K. keywords: carbon; doi; energy; mwcnts; nanotubes; samples; surface; surface energy cache: hjic-754.pdf plain text: hjic-754.txt item: #554 of 680 id: hjic-755 author: Csomós, Bence; Fodor, Dénes; Kohlrusz, Gábor title: Initial Electrical Parameter Validation in Lead-Acid Battery Model Used for State Estimation date: 2017 words: 3607 flesch: 56 summary: Battery model for impulse excitation In this paper, a standard Randles’ model [7-12] was analyzed that consists of charge-transfer resistance, Rct, battery serial resistance, Rs, double-layer capacitance, Cdl, and bulk capacitance, Cb (Fig.1). In the proposed model, a simplified, that is, capacitor-like formula was used for initial battery capacity estimation so it approximates the battery non-linear discharge characteristic linearly. keywords: battery; current; discharge; impulse; load; model; soc; time; voltage cache: hjic-755.pdf plain text: hjic-755.txt item: #555 of 680 id: hjic-756 author: Fertig, Dávid; Mádai, Eszter; Valiskó, Mónika; Boda, Dezső title: Simulating Ion Transport wth the Np+Lemc Method. Applications to Ion Channels and Nanopores. date: 2017 words: 9250 flesch: 63 summary: APPLICA- TIONS TO ION CHANNELS AND NANOPORES. Keywords: ion transport, Nernst-Planck, Monte Carlo simulation, nanopore, ion channel 1. keywords: boda; ca2; channel; concentration; current; doi; gillespie; ions; method; model; na+; phys; potential cache: hjic-756.pdf plain text: hjic-756.txt item: #556 of 680 id: hjic-757 author: , title: Downloadable Full Issue date: 2017 words: 52075 flesch: 54 summary: ��,����� = ���,������max���,��� �min���,���max���,��� (1) ��,����� = ���,������min���,��� �max���,���min���,��� (2) Value aggregation is done according to SDEWES���� = ∑ ∑ �� � ��� ��,����� � ��� , (3) where ∑ �� = 1� ��� and αx is the weight of the xth dimension. keywords: 45(1; acid; adsorption; analysis; battery; ca2; carbon; case; catalyst; channel; charge; chemistry; cities; city; column; complexes; concentration; control; current; data; distribution; doi; effect; energy; equilibrium; figure; formation; gas; h2s; horváth; hungarian; hydrogen; index; industry; ions; journal; membranes; metal; method; mixture; model; mwcnts; parameters; phase; phys; plane; potential; process; quality; results; sample; selectivity; simulation; size; small; state; structure; surface; surface energy; system; table; temperature; terms; time; transport; treatment; type; value; veszprém; voltage; water; zeolite; � � cache: hjic-757.pdf plain text: hjic-757.txt item: #557 of 680 id: hjic-759 author: Nawaz, Zeeshan title: Methyl-Tert-Butyl-Ether Synthesis Reactor Modelling and Optimization Using an Aspen Custom Modeler date: 2017 words: 4414 flesch: 52 summary: The heat transfer coefficient of the shell side is expressed as a function of Nu and Re and are both based on the external diameter of the tube, where ɛφ stands for a correction factor accounting for the angle between the coolant stream and reactor tubes: The following five reactions (Eqs.(1-5)) are involved in MTBE synthesis when isobutylene reacts with methanol *Correspondence: zeeshan@sabic.com (MeOH). keywords: catalyst; coefficient; doi; heat; methanol; model; mtbe; rate; reaction; reactor; synthesis; temperature; transfer cache: hjic-759.pdf plain text: hjic-759.txt item: #558 of 680 id: hjic-760 author: Csighy, Attila; Koris, András; Vatai, Gyula title: Modelling the Partial Demineralization Process of Cow Milk by Superpro Designer date: 2017 words: 2246 flesch: 52 summary: Keywords: partial demineralization, SuperPro Designer, modelling, economic analysis 1. Introduction Dairy products play an important role in the health of humans as milk contains a number of biologically active compounds (proteins, lipids, vitamins and minerals). [3] Suárez, E.; Lobo, A.; Álvarez, S.; Riera, F.A.; Álvarez, R.: Partial demineralization of whey and milk ultrafiltration permeate by nanofiltration at pilot-plant scale, Desalination, 2006 198(1-3), 274–281 DOI 10.1016/j.desal.2005.12.028 keywords: demineralization; designer; milk; process; table; unit; whey cache: hjic-760.pdf plain text: hjic-760.txt item: #559 of 680 id: hjic-761 author: Tovt, Valeria; Barchiy, Igor; Piasecki, Michal; Kityk, Iwan; Fedorchuk, Anatolii title: Investigations of the TlInP2Se6–In4(P2Se6)3 System and its Optical Properties date: 2017 words: 3149 flesch: 56 summary: 2. Experimental Ternary Tl4P2Se6 and In4(P2Se6)3 compounds were pre- pared by melting stoichiometric quantities of binary Tl2Se with elementary indium, phosphorous and seleni- um under a vacuum of 0.13 Pa in quartz ampoules using a single temperature method. Crystal data of TlInP2Se6 and In4(P2Se6)3 compounds. keywords: band; compounds; in4(p2se6)3; structure; system; tlinp2se6 cache: hjic-761.pdf plain text: hjic-761.txt item: #560 of 680 id: hjic-762 author: Németh, Áron title: Examination of Innovative High-Throughput Fermentations date: 2017 words: 1950 flesch: 54 summary: This model can describe both anaerobic cell growth on excess sugar with the formation of alcohol and aero- bic cell growth on alcohol as a substrate. Keywords: fermentation, high-throughput, scale-down, online measurement, mathematical model- ling 1. Introduction Developments in fermentations face numerous chal- lenges which may require expensive analytics, media components or special tools to facilitate aseptic work and sampling. keywords: anaerobic; data; growth; measurements; media; model cache: hjic-762.pdf plain text: hjic-762.txt item: #561 of 680 id: hjic-763 author: Zakar, Mihály; Kovács, Ildikó; Muhi, Péter; Hanczné Lakatos, Erika; Keszthelyi-Szabó, Gábor; László, Zsuzsanna title: The Effect of Advanced Oxidation Pre-Treatment on the Membrane Filtration Parameters of Dairy Wastewater date: 2017 words: 3065 flesch: 52 summary: Membrane treatment of dairy wastewater with the aim of water reuse could simultaneously lower the total water consumption and effluent production of dairy plants, as the purified water produced could be reused in a dairy plant to heat or cool water. [1] Farizoglu, B.; Uzuner, S.: The investigation of dairy industry wastewater treatment in a biological high performance membrane system, Biochem. keywords: dairy; fenton; filtration; flux; fouling; membrane; ozone; pre; treatment; wastewater cache: hjic-763.pdf plain text: hjic-763.txt item: #562 of 680 id: hjic-764 author: Albert, Krisztina; Vatai, Gyula; Koris, András title: Microencapsulation of Vegetable Oil - Alternative Approaches Using Membrane Technology and Spray Drying date: 2017 words: 2824 flesch: 49 summary: [10] Turchiuli, C.; Jimenez Munguia, M.T.; Hernandez Sanchez, M.; Cortesferre, H.; Dumoulin, E.: Use of different supports for oil encapsulation in powder by spray drying, Powder Technol., 2014 255, 103– 108 DOI 10.1016/j.powtec.2013.08.026 Oil encapsulation efficiency of microcap- sules. keywords: doi; emulsification; membrane; microcapsules; microencapsulation; oil; phase; spray; � � cache: hjic-764.pdf plain text: hjic-764.txt item: #563 of 680 id: hjic-765 author: Márkus, Zsófia; Bélafi-Bakó, Katalin; Tóth, Gábor; Nemestóthy, Nándor; Gubicza, László title: Effect of Chain Length and Order of the Alcohol on Enzyme Activity During Enzymatic Esterification in Organic Media date: 2017 words: 3343 flesch: 52 summary: Keywords: enzymatic esterification, non-conventional media, effect of alcohol chain lengths, lipase activity 1. He, C.; Yi, W.; Zhu, W.; Liu, Y.: Effect of alcohol chain length on the enzymatic resolution of racemic mandelic acid and kinetic study, Biotechnol. keywords: acid; alcohols; chain; doi; enzyme; esterification; esters; reaction; water cache: hjic-765.pdf plain text: hjic-765.txt item: #564 of 680 id: hjic-766 author: Tonova, Konstantza title: State-of-the-Art Recovery of Fermentative Organic Acids by Ionic Liquids - an Overview date: 2017 words: 2804 flesch: 52 summary: Keywords: extraction, ionic liquid, organic acid, recovery, re–extraction 1. [9] Matsumoto, M.; Mochiduki, K.; Fukunishi, K.; Kondo, K.: Extraction of organic acids using imid- imidazolium–based ionic liquids and their toxicity to Lactobacillus rhamnosus, Sep. Purif. keywords: acid; chem; doi; extraction; ils; liquids cache: hjic-766.pdf plain text: hjic-766.txt item: #565 of 680 id: hjic-767 author: Ziobrowski, Zenon; Rotkegel, Adam title: Application of a Hydrophobic Polymeric Membrane for Carbon Dioxide Desorption from an Mea-Water Solution date: 2017 words: 2257 flesch: 57 summary: Cal- culated and experimental values of CO2 mass fluxes are Figure 5. The scattering of calculated and exper- imental values of CO2 mass fluxes was within the range of ±25% . keywords: co2; doi; fluxes; liquid; mass; mea; membrane; temperature cache: hjic-767.pdf plain text: hjic-767.txt item: #566 of 680 id: hjic-768 author: , title: Downloadable Full Issue date: 2017 words: 26251 flesch: 53 summary: 1–7 (2017) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2017-0012 METHYL-TERT-BUTYL-ETHER SYNTHESIS REACTOR MODELLING AND OPTIMIZATION USING AN ASPEN CUSTOM MODELER ZEESHAN NAWAZ SABIC Technology & Innovation, PO Box 42503, Saudi Basic Industries Corporation (SABIC), Riyadh, 11551, SAUDI ARABIA A pseudo-homogeneous model of methyl-tert-butyl-ether (MTBE) synthesis in a multi-tubular packed-bed reactor has been developed using an Aspen Custom Modeler (ACM) for selecting optimum operating strategies, for the maximization and enhancement of MTBE production, and isobutylene consumption, respectively. 9–12 (2017) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2017-0013 MODELLING THE PARTIAL DEMINERALIZATION PROCESS OF COW MILK BY SUPERPRO DESIGNER ATTILA CSIGHY,* ANDRÁS KORIS, AND GYULA VATAI Department of Food Engineering, Szent István University, Ménesi út 44, Budapest, 1118, HUNGARY Milk and dairy products contain a number of biologically active compounds (proteins, lipids, vitamins and minerals) that are essential for human nutrition. keywords: 10.1016; acid; alcohols; carbon; chain; chem; chemistry; co2; coefficient; compounds; dairy; doi; effect; esterification; extraction; feed; figure; flow; flux; fouling; heat; hungarian; in4(p2se6)3; industry; liquid; mass; membrane; method; milk; model; mtbe; oil; parameters; phase; process; processes; production; rate; reaction; reactor; results; study; synthesis; system; table; temperature; terms; tlinp2se6; transfer; treatment; wastewater; water cache: hjic-768.pdf plain text: hjic-768.txt item: #567 of 680 id: hjic-799 author: Hanáková, Kateřina; Potěšil, David; Bernatík, Ondřej; Cervenka, Igor; Rádsetoulal, Matěj; Bryja, Vítězslav; Zdráhal, Zbyněk title: Semiquantitative Assessment of Dishevelled-3 Phosphorylation Status by Mass Spectrometry date: 2018 words: 1528 flesch: 51 summary: 4 HANÁKOVÁ, POTĚŠIL, BERNATÍK, ČERVENKA, RÁDSETOULAL, BRYJA, AND ZDRÁHAL Figure 1: Comparison of phosphorylation sites of hDvl3 induced by CK1ε and NEK2. Phosphorylation sites identified only by NEK2 are indicated by red background color. analyzed by liquid chromatography coupled with mass spectrometry (LC-MS/MS) for protein identification (ID run). keywords: ck1ε; dvl3; nek2; phosphorylation; sites cache: hjic-799.pdf plain text: hjic-799.txt item: #568 of 680 id: hjic-800 author: Kilár, Anikó; Dörnyei, Ágnes; Sándor, Viktor; Kilár, Ferenc; Kocsis, Béla title: Phosphoglycolipid Profiling of Bacterial Endotoxins date: 2018 words: 139 flesch: 42 summary: 7-11 (2018) Introduction Experimental Chemicals and Reagents Bacterial strains and lipid A isolation Liquid Chromatography – Mass Spectrometry Measurements Results and Analysis HPLC-MS of bacterial lipid A Tandem mass spectrometric analysis of lipid A species Discussion Conclusion Gram-negative bacterial lipid A analysis by negative electrospray ion trap mass spectrometry: keywords: mass cache: hjic-800.pdf plain text: hjic-800.txt item: #569 of 680 id: hjic-801 author: Bodor, Róbert; Nečasová, Andrea; Pechová, Alena; Masár, Marián title: Capillary Isotachophoresis Determination of Trace Oxidized Glutathione in Blood date: 2018 words: 1948 flesch: 57 summary: Blood samples that had been di- luted by a factor of ten were directly analyzed after their filtration through a syringe filter with a pore size of 1 µm. The simple and rapid preparation of blood samples, that only involves the masking of thiol group of GSH and the dilution and filtration of the sam- ple, increases the accuracy of the GSSG concentration measured. keywords: concentration; doi; electrophoresis; glutathione; samples cache: hjic-801.pdf plain text: hjic-801.txt item: #570 of 680 id: hjic-802 author: Stiborek, Marek; Preisler, Jan; Shekargoftar, Masoud; Kanick, Viktor; Kelar, Jakub title: Cold Plasma: the Way to Improve the Repeatability of SALD ICP-MS Analysis date: 2018 words: 1234 flesch: 59 summary: 1 µl was required to measure contact angles and 0.2 µl for SALD ICP-MS. 1 shows that the droplets of 0.5 mM trisodium citrate solution that were applied to the substrate surface of PET modified by DCSBD for one second exhibited the greatest contact angle, hence the least wettability; i.e., a longer duration of DCSBD modification causes a higher degree of wettability. keywords: contact; modification; substrate; surface cache: hjic-802.pdf plain text: hjic-802.txt item: #571 of 680 id: hjic-803 author: Kubáň, Petr; Ďurč, Pavol; Lačná, Júlia; Greguš, Michal; Foret, František; Dolina, Jiří; Konečný, Štefan; Doubková, Martina; Kindlová, Dagmar; Pokojová, Eva; Skřičková, Jana title: Capillary Electrophoretic Analysis of Exhaled Breath Condensate in the Diagnosis of Gastroesophageal Reflux Disease date: 2018 words: 2665 flesch: 55 summary: EBC samples were collected from several healthy volunteers and a group of patients suffering from symptoms attributed to gastroesophageal reflux disease. Capillary electrophoresis was used to ana- lyze the ionic content of EBC samples and differences in selected ion concentrations were identified between the groups. keywords: analysis; anions; cations; ebc; reflux; separation cache: hjic-803.pdf plain text: hjic-803.txt item: #572 of 680 id: hjic-804 author: Greguš, Michal; Ďurč, Pavol; Lačná, Júlia; Foret, František; Kubáň, Petr title: Study of Various Parameters that Influence the Content of Exhaled breath Condensate Used in the Diagnosis of Gastroesophageal Reflux Disease date: 2018 words: 819 flesch: 56 summary: [1] Shaheen, N. J.; Hansen, R. A.; Morgan, D. R.; Gan- garosa, L. M.; Ringel, Y.; Thiny, M. T.; Russo, M. W.; Sandler, R. S.: The burden of gastrointestinal and liver diseases, Am. 29-33 (2018) 34 GREGUŠ, ĎURČ, LAČNÁ, FORET AND KUBÁŇ [14] Ahmadzai, H.; Huang, S.; Hettiarachchi, R.; Lin, J. L.; Thomas, P. S.; Zhang, Q.: Exhaled breath con- densate: a comprehensive update, Clin. keywords: doi; ebc cache: hjic-804.pdf plain text: hjic-804.txt item: #573 of 680 id: hjic-805 author: Škvára, Pavel; Kezmanová, Júlia; Mišľanová, Csilla; Vojs Staňová, Andrea title: Analysis and Identification of Polyphenolic Compounds in Green Foods Using a Combination of HPLC-ESI-IT-TOF-MS/MS date: 2018 words: 746 flesch: 22 summary: Chemistry and Biochemistry of Dietary Polyphenols, Nutrients, 2010 2(12), 1231–1246 DOI: 10.3390/nu2121231 [6] Orčić, D.; Francišković, M.; Bekvalac, K.; Svirčev, E.; Beara, I.; Lesjak, M.; Mimica-Dukić, N.: Quan- titative determination of plant phenolics in Urtica dioica extracts by high-performance liquid chro- matography coupled with tandem mass spectromet- ric detection, Food Chemistry, 2014 143, 48–53 DOI: 10.1016/j.foodchem.2013.07.097 [7] Baskaran, R.; Pullencheri, D.; Somasundaram, R.: Characterization of free, esterified and bound phenolics in custard apple (Annona squamosa L) fruit pulp by UPLC-ESI-MS/MS, Food Re- search International, 2016 82, 121–127 DOI: 10.1016/j.foodres.2016.02.001 [8] Comandini, P.; Lerma-García, M. J.; Simó-Alfonso, E. F.; Toschi, T. G.: Tannin analysis of chestnut bark samples (Castanea sativa Mill.) by HPLC- DAD–MS, Food Chemistry, 2014 157, 290–295 DOI: 10.1016/j.foodchem.2014.02.003 [9] Ma, Y.; Kosińska-Cagnazzo, A.; Kerr, W. L.; Amarowicz, R.; Swanson, R. B.; Pegg, R. B.: Separation and characterization of phenolic com- pounds from dry-blanched peanut skins by liq- uid chromatography–electrospray ionization mass spectrometry, J. Chromatography A, 2014 1356, 64–81 DOI: 10.1016/j.chroma.2014.06.027 [10] Jiang, H.; Timmermann, B. N.; Gang, D. R.: Char- acterization and identification of diarylheptanoids in ginger (Zingiber officinale Rosc.) using high- performance liquid chromatography/electrospray ionization mass spectrometry, Rapid Communica- tions in Mass Spectrometry, 2007 21(4), 509–518 DOI: 10.1002/rcm.2858 [1] Gil, E. S.; Couto, R. O.: Flavonoid electrochem- istry: a review on the electroanalytical applications, Revista Brasileira de Farmacognosia, 2013 23(3), 542–558 DOI: 10.1590/s0102-695x2013005000031 [2] Boros, B.; Jakabová, S.; Dörnyei, Á.; Horváth, G.; Pluhár, Z.; Kilár, F.; Felinger, A.: Deter- mination of polyphenolic compounds by liquid chromatography–mass spectrometry in Thymus species, J. Chromatography A, 2010 1217(51), 7972–7980 DOI: 10.1016/j.chroma.2010.07.042 [3] Ginjom, I.; D’Arcy, B.; Caffin, N.; Gidley, M.: Phe- nolic compound profiles in selected Queensland red wines at all stages of the wine-making pro- cess, Food Chemistry, 2011 125(3), 823–834 DOI: 10.1016/j.foodchem.2010.08.062 keywords: doi; food cache: hjic-805.pdf plain text: hjic-805.txt item: #574 of 680 id: hjic-806 author: Moravcová, Dana; Planeta, Josef title: Silica Monolithic Capillary Columns for Hilic Separations date: 2018 words: 1287 flesch: 53 summary: The MEDSA column also exhibits Hungarian Journal of Industry and Chemistry SILICA MONOLITHIC CAPILLARY COLUMNS FOR HILIC SEPARATIONS 41 Figure 2: Separation of nucleosides and nucleotides on prepared MEDSA (A), MEPC (B) and bare silica (C) monolithic columns. REFERENCES [1] Nakanishi, K., Soga, N.: Phase separation in silica sol-gel system containing polyacrylic acid I. Gel formation behavior and effect of solvent compo- sition, J. Non-Cryst. keywords: column; fig; separation; silica cache: hjic-806.pdf plain text: hjic-806.txt item: #575 of 680 id: hjic-807 author: Troška, Peter; Mandžáková, Anna; Hradski, Jasna; Ševčík, Juraj; Masár, Marián title: Determination of Homocysteine in Urine and Saliva by Microchip Electrophoresis date: 2018 words: 1784 flesch: 51 summary: Anal., 1997 15(9–10), 1435–1441 DOI: 10.1016/S0731- 7085(96)02051-1 [15] Vecchione, G.; Margaglione, M.; Grandone, E.; Colaizzo, D.; Cappucci, G.; Fermo, I.; D’Angelo, A.; Di Minno, G.: Determining sulfur-containing amino acids by capillary electrophoresis: A fast novel method for total homocyst(e)ine human plasma, Electrophoresis, 1999 20(3), 569–574 DOI: 10.1002/(SICI)1522-2683(19990301)20:3<569::AID- ELPS569>3.0.CO;2-S [16] Liang, Q.; Chen, H.; Li, F.; Du, X.: Simultane- ous sensitive MEKC-LIF determination of homo- cysteine, homoarginine, and six arginine metabolic derivatives in fluids from type 2 diabetics with pep- tic ulcer bleeding, Chromatographia, 2015 78(15– 16), 1049–1056 DOI: 10.1007/s10337-015-2919-6 [17] Ševčíková, P.; Glatz, Z.; Tomandl, J.: Determina- tion of homocysteine in human plasma by micel- lar electrokinetic chromatography and in-capillary detection reaction with 2,2’- dipyridyl disulfide, J. Chromatogr. A., 2003 990(1–2), 197–204 DOI: 10.1016/S0021-9673(03)00048-7 [18] Chassaing, C.; Gonin, J.; Wilcox, C.S.; Wainer, I.W.: Determination of reduced and oxidized ho- mocysteine and related thiols in plasma by thiol- specific pre-column derivatization and capillary electrophoresis with laser-induced fluorescence de- tection, J. Chromatogr. Chem., 2011 66(3), 317–321 DOI: 10.1134/S1061934811030075 [8] Melnikov, I.O.; Nazimov, I.V.; Stukacheva, E.A.; Glubokov, Y.: Determination of homocysteine and other low-molecular-weight amino thiols in blood plasma, J. Anal. keywords: cze; doi; electrophoresis; homocysteine; itp cache: hjic-807.pdf plain text: hjic-807.txt item: #576 of 680 id: hjic-808 author: , title: Downloadable Full Issue date: 2018 words: 36668 flesch: 49 summary: Lipid A samples were dis- solved in methanol/dichloromethane (95:5, v/v) at a final concentration of 0.5 mg/ml. 2.3 Liquid Chromatography – Mass Spec- trometry Measurements Separation and mass spectrometric detection of lipid A samples were performed with an 1290 Infinity Ultra-high performance liquid chromatography (UHPLC) system (Agilent Technologies, Waldbronn, Germany) coupled to a 6530 Accurate-Mass Q-TOF LC/MS system (Agi- lent Technologies, Singapore), using a KinetexTM core- shell C18 column (100 mm×4.6 mm, 2.6 µm particle size, Phenomenex). Lipid A samples were dis- solved in methanol/dichloromethane (95:5, v/v) at a final concentration of 0.5 mg/ml. 2.3 Liquid Chromatography – Mass Spec- trometry Measurements Separation and mass spectrometric detection of lipid A samples were performed with an 1290 Infinity Ultra-high performance liquid chromatography (UHPLC) system (Agilent Technologies, Waldbronn, Germany) coupled to a 6530 Accurate-Mass Q-TOF LC/MS system (Agi- lent Technologies, Singapore), using a KinetexTM core- shell C18 column (100 mm×4.6 mm, 2.6 µm particle size, Phenomenex). keywords: acid; analysis; breath; chemistry; chromatography; column; compounds; concentration; condensate; czech; detection; determination; doi; ebc; ebc samples; electrophoresis; fig; figure; glutathione; gsh; hplc; hungarian; industry; ionization; ions; journal; lipid; mass; mode; modification; ms analysis; phase; phosphorylation; plasma; reflux; republic; samples; separation; silica; species; spectrometry; substrate; surface; technique; university; water cache: hjic-808.pdf plain text: hjic-808.txt item: #577 of 680 id: hjic-826 author: Al-Maliki, Hayder; Kalácska, Gábor title: Tribological Behaviour of Polymers in Terms of Plasma Treatment: A Brief Review date: 2018 words: 7486 flesch: 44 summary: Recently, plasma surface treatment was referred to as the most accepted method of modifying the surface of polymeric materials due to its remarkable stability con- cerning the enhancement of surface properties compared to conventional techniques, in particular, atmospheric plasma treatment which has the ability to operate under ambient atmospheric conditions (in terms of temperature haidrlatif@gmail.com 2 AL-MALIKI AND KALÁCSKA and humidity) and does not require a vacuum [9,11]. 1-11 (2018) hjic.mk.uni-pannon.hu DOI: 10.1515/hjic-2018-0011 TRIBOLOGICAL BEHAVIOUR OF POLYMERS IN TERMS OF PLASMA TREATMENT: A BRIEF REVIEW HAYDER AL-MALIKI ∗1 AND GÁBOR KALÁCSKA1 1Faculty of Mechanical Engineering, Mechanical Engineering PhD School, Szent István University, Páter Károly utca 1, H-2100 Gödöllő, HUNGARY A review to enrich the literature concerning the effect of various plasmas on the tribological behaviour of polymers and monitor the developments of plasma for the modification of polymer surfaces over recent decades using up-to-date data. keywords: behaviour; conditions; dbd; discharge; doi; friction; plasma; plasma treatment; polymers; pressure; properties; surface; treatment; tribology; wear cache: hjic-826.pdf plain text: hjic-826.txt item: #578 of 680 id: hjic-827 author: Lukács, Zoltán; Kristóf, Tamás title: Application of 2N Design of Experiment method for the evaluation of the efficiency and cross-effects of oilfield chemicals date: 2018 words: 3046 flesch: 46 summary: Keywords: oilfield chemicals, corrosion inhibitor, Design of Experiment 1. As the aim was to simulate the effects and cross-effects of oilfield chemical treatment additives (corrosion inhibitor, as well as hydro- gen sulfide and oxygen scavengers), 1 mM of Na2S was added to the solution. keywords: corrosion; cross; effects; factors; model; scavenger cache: hjic-827.pdf plain text: hjic-827.txt item: #579 of 680 id: hjic-828 author: Virágh, Eszter; Kiss, Bálint title: Strong Reachability of Reactions with Reversible Steps date: 2018 words: 5192 flesch: 66 summary: Consider a system of R reaction steps and with M species (R,M > 0). Consider a reaction with M species and R reaction steps. keywords: controllability; matrix; reachability; reaction cache: hjic-828.pdf plain text: hjic-828.txt item: #580 of 680 id: hjic-829 author: Bedő, Zsófia; Bélafi-Bakó, Katalin; Nemestóthy, Nándor; Gubicza, László title: Production of a Biolubricant by Enzymatic Esterification: Possible Synergism between Ionic Liquid and Enzyme date: 2018 words: 3188 flesch: 44 summary: Keywords: synergistic effect, ionic liquid and microwave heating, biolubricant production, enzyme reuse 1. In the experiments with recycled enzyme it was found that ionic liquid maintained the enzyme more effectively, as if it was immobilized by it: the enzyme managed to maintain its activity and recycling ability. keywords: biolubricant; doi; enzyme; heating; irradiation; liquid; microwave; production; reaction cache: hjic-829.pdf plain text: hjic-829.txt item: #581 of 680 id: hjic-83 author: Temesvári, K.; Aranyi, A.; Balogh, S.; Bánkuti, Gy.; Csukás, B. title: Separation of a Two-Component Steroid Mixture by Simulated Moving Bed Chromatography date: 2004 words: 3906 flesch: 56 summary: Analytical Method for Measurement of SMB Samples The samples of SMB experiments were examined by analytical HPLC which consisted of a gradient pump (SpectraSYSTEM P2000), a controller (SpectraSYSTEM SN4000), a light scattering detector (Polymer Laboratories PL-ELS 2100), a thermostat (JET-STREAM Plus) and an injection valve (Rheodyne, 20 µL loop). [mg/(g min)] Specific solvent consumption (ml/mg A) Recovery (%) Purity (%) Isocratic, 8 columns, 4 zones, column connection: 2-2-2-2 SMB-5 36:9 0.7891 0.2429 98.62 100 Isocratic, 16 columns, 4 zones SMB-7 2-6-6-2 36:9 0.8114 0.2376 100 97.46 SMB-8 2-6-6-2 36:9 0.7920 0.2471 99.31 100 SMB-10 3-4-7-2 36:9 0.8065 0.1907 99.25 100 Gradient, 16 columns, 3 zones SMB-11 3-5-8 48:12 1.0175 0.2015 99.86 100 Therefore in the following the main goal was to decrease the specific solvent consumption by changing the column distribution in the four zones of the SMB unit. keywords: columns; data; experiments; parameters; separation; simulation; smb cache: hjic-83.pdf plain text: hjic-83.txt item: #582 of 680 id: hjic-830 author: Dhaygude, Vinod; Soós, Anita; Zeke, Ildikó; Somogyi, László title: Comparison Between Static and Dynamic Analyses of the Solid Fat Content of Coconut Oil date: 2018 words: 2632 flesch: 60 summary: These data can be used by food manufacturers to optimize processing conditions for modified coconut oil and food products fortified with coconut oil. Considering the significant scientific and practical im- portance of the physical properties of coconut oil from a few studies, the solid fat content determined by NMR and DSC methods was investigated and the obtained results compared. keywords: blends; coconut; content; fat; oil cache: hjic-830.pdf plain text: hjic-830.txt item: #583 of 680 id: hjic-831 author: Szedljak, Ildikó; Kovács, Anikó; Kun-Farkas, Gabriella; Bernhardt, Botond; Králik, Szabina; Szántai-Kőhegyi, Katalin title: Monitoring of Chemical Changes in Red Lentil Seeds During the Germination Process date: 2018 words: 3985 flesch: 57 summary: The effect of heat treatment on the amounts of certain components and the activity of oxidative enzymes was tested during our experiments; the nutritional characteristics (water-soluble total polyphenol content (WSTPC), water- soluble protein content (WSPC), water-soluble antioxidant capacity, in addition to peroxidase and polyphenol oxidase enzyme activities) of different treatments in red lentil samples were monitored. Germination resulted in the water-soluble antioxidant capacity of red lentil samples decreasing. keywords: activity; antioxidant; doi; food; germination; lentil; red; samples; water cache: hjic-831.pdf plain text: hjic-831.txt item: #584 of 680 id: hjic-832 author: Varga, Veronika; Bélafi-Bakó, Katalin; Vozik, Dávid; Nemestóthy, Nándor title: Recovery of Itaconic Acid by Electrodialysis date: 2018 words: 2320 flesch: 50 summary: Itaconic acid – unlike citric acid – is applied exclu- sively for non-food purposes [2]. The experiments with models of aqueous solutions con- firmed that the technique is suitable for the effective recovery of itaconic acid. keywords: acid; concentration; doi; itaconic; membranes; sodium; solution cache: hjic-832.pdf plain text: hjic-832.txt item: #585 of 680 id: hjic-833 author: Nagy, Sándor title: The Initial Magnetic Susceptibility of Dense Aggregated Dipolar Fluids date: 2018 words: 5111 flesch: 57 summary: The applied external mag- netic field is denoted by H0 and the sum of the external and generated magnetic fields by He. Here it is quite conceivable that the simple series ex- pansion of initial magnetic susceptibility as the summa- tion of positive integer powers of Langevin susceptibil- ity is unsatisfactory. keywords: chain; dipole; energy; field; magnetization; particles; susceptibility; table cache: hjic-833.pdf plain text: hjic-833.txt item: #586 of 680 id: hjic-834 author: Ruppert, Tamás; Abonyi, János title: Worker Movement Diagram Based Stochastic Model of Open Paced Conveyors date: 2018 words: 4094 flesch: 60 summary: In the model F (s)kn denotes the position of kth operator at nth cycle step in sth section of diagram, where the positions are measured from the starting point of the first table. [s] tk(π(n) assembly time of actual the product at kth operator keywords: conveyor; movement; operator; production; section; table; time cache: hjic-834.pdf plain text: hjic-834.txt item: #587 of 680 id: hjic-835 author: Kóczán-Manninger, Katalin; Badak-Kerti, Katalin title: Investigations into Flour Mixes of Triticum Monococcum and Triticum Spelta date: 2018 words: 2695 flesch: 63 summary: After 2 days of storage at room temperature, the crumbs of 100 % spelt flour bread degraded to an average quality. By mixing einkorn and spelt flours bread can be made, however, an acceptable ratio would not exceed 20 % of einkorn to 80 % of Tr. spelta flour. keywords: bread; flour; gluten; quality; spelt; triticum cache: hjic-835.pdf plain text: hjic-835.txt item: #588 of 680 id: hjic-836 author: Bognár, Erzsébet; Hellner, Gabriella; Radnóti, Andrea; Somogyi, László; Kemény, Zsolt title: Formation of Glycidyl Esters During the Deodorization of Vegetable Oils date: 2018 words: 2747 flesch: 58 summary: [13] summarized the data from previous studies and according to this re- view the highest concentrations of GEs in seed oil were found in soybean oil when compared to rapeseed and sun- flower oils. Experimental 2.1 Samples and Measurements Bleached sunflower, rapeseed and soybean oils were sup- plied by Bunge Limited (Bunge Zrt. keywords: deodorization; esters; formation; ges; oils; temperature cache: hjic-836.pdf plain text: hjic-836.txt item: #589 of 680 id: hjic-837 author: Czinkóczky, Réka; Németh, Áron title: Effect of Algae Treatment on Stevia Rebaudiana Growth date: 2018 words: 2706 flesch: 61 summary: A comparison between heterotrophic algae treatment and the control samples is shown in Fig. 9B. The p-value was 0.003, i.e. a significant difference ex- ists between them and heterotrophic algae treatment is also beneficial. keywords: algae; control; fig; growth; rebaudiana; treatment cache: hjic-837.pdf plain text: hjic-837.txt item: #590 of 680 id: hjic-838 author: Wirnhardt, Ádám; Varga, Tamás title: Comparison of Particle Size Distribution Models for Polymer Swelling date: 2018 words: 3525 flesch: 63 summary: By examining the correlation of model parameters in these eleven models, one model called Jaky exhibited a correlation as shown in Fig. Bayat et al. collected PSD models from the last sev- enty years keywords: beads; distribution; models; polymer; size; swelling cache: hjic-838.pdf plain text: hjic-838.txt item: #591 of 680 id: hjic-839 author: Szedljak, Ildikó; Tóth, Viktória; Tormási, Judit; Kovács, Anikó; Somogyi, László; Sipos, László; Kiskó, Gabriella title: Effects of Different Heat Treatments on the Chemical and Microbiological Characteristics of Egg-free and Quail Egg Dried Pasta date: 2018 words: 3847 flesch: 51 summary: Quail egg pasta (Coturnix coturnix) is one of these innovations. Since the chemical and microbiological character- istics of quail egg pasta, according to the literature, have yet to be studied in depth, our goal was to expand this knowledge. keywords: activity; content; egg; heat; pasta; quail; samples; water cache: hjic-839.pdf plain text: hjic-839.txt item: #592 of 680 id: hjic-84 author: Nagy, M.; Molnár, Z.; Hanák, L.; Argyelán, J.; Szánya, T.; Ravasz, B.; Turza, G.; Aranyi, A.; Temesvári, K. title: Study of Open–looped Simulated Moving Bed (SMB) Chromatographic Process date: 2004 words: 3665 flesch: 63 summary: The function of segment III is to separate steroid A and B and to produce steroid B in the LROUT flow. Results of the RG 1040 GSMB 8/46 measurement compared to preparative HPLC measurement Preparative HPLC RG1040 SMB8/46 measurement (9 min) Purity of raffinate (LROUT 2) >99.9 % m/m B >99.9 % m/m B Yield (LROUT 2) ~ 95 % B >92.6 % B Productivity (LROUT 2) 0.303 mingelsilicag Bmg 2.14 mingelsilicag Bmg Eluent consumption (LROUT 2) 0.354 Bmg eluentfreshcm3 0.134 Bmg eluentfreshcm3 21 SYMBOLS qAcetone adsorbent concentration of acetone, mg g-1 aAcetone Langmuir constant of acetone, cm3 liquid free volume g-1 silica gel bAcetone Langmuir constant of acetone, cm3 liquid free volume mg-1 acetone cAcetone concentration of acetone, g dm-3 qB adsorbent concentration of steroid B, mg g-1 aB Langmuir constant of steroid B, cm3 liquid free volume g-1 silica gel bB Langmuir constant of steroid B, cm3 liquid free volume mg-1 B component cB concentration of steroid B, g dm-3 qA adsorbent concentration of steroid A, mg g-1 aA Langmuir constant of steroid A, cm3 liquid free volume g-1 silica gel bA Langmuir constant of steroid A, cm3 liquid free volume mg-1 A component cA concentration of steroid A, g dm-3 k number of components k’ keywords: acetone; cm3; column; liquid; min; smb; steroid cache: hjic-84.pdf plain text: hjic-84.txt item: #593 of 680 id: hjic-840 author: Tarcsay, Bálint Levente; Mihálykó-Orbán, Éva; Mihálykó, Csaba title: Optimal Design and Operation of Buffer Tanks Under Stochastic Conditions date: 2018 words: 6240 flesch: 54 summary: Hungarian Journal of Industry and Chemistry OPTIMAL DESIGN AND OPERATION OF BUFFER TANKS UNDER STOCHASTIC CONDITIONS 95 Figure 3: The probability of a failure as a function of the initial buffer and tank capacities. puted, it can be determined whether or not the continuous withdrawal caused the shortage during the time interval bounded by the last two batch events. An analytic function Hungarian Journal of Industry and Chemistry OPTIMAL DESIGN AND OPERATION OF BUFFER TANKS UNDER STOCHASTIC CONDITIONS 99 was fitted to the simulated data, which provided a link between the initial buffer and tank capacities that corre- spond to a given level of reliability. keywords: buffer; capacity; function; material; process; reliability; tank; time cache: hjic-840.pdf plain text: hjic-840.txt item: #594 of 680 id: hjic-841 author: , title: Downloadable Full Issue date: 2018 words: 58712 flesch: 55 summary: [21] Galeazzi, M. A. M.; Sgarbieri, V. C.; Costantinides, S. M.: Isolation, purification and physiochemical characterization of polyphenoloxidases (PPO) from dwarf variety of banana (Musa Cavendishii, L.). Surface chemical and nanomechanical properties, Materials Science Forum, 2007 537, 255-262 DOI: 10.4028/www.scientific.net/MSF.537-538.255 keywords: 46(2; acid; activity; algae; analysis; antioxidant; buffer; capacity; case; chemical; chemistry; conditions; content; control; conveyor; corrosion; data; design; difference; distribution; doi; effect; egg; enzyme; factors; fat; field; fig; figure; flour; following; food; friction; function; heat; hungarian; industry; journal; material; matrix; measurements; method; model; number; oil; oils; operator; parameters; particles; plasma; polymer; probability; process; production; products; properties; rate; reachability; reaction; results; samples; simulation; study; surface; susceptibility; swelling; system; table; tank; temperature; terms; test; time; treatment; values; water; wear cache: hjic-841.pdf plain text: hjic-841.txt item: #595 of 680 id: hjic-842 author: Magyar, Attila title: Editorial Preface to The Special Issue Dedicated to the 15th International PhD Workshop on Systems and Control by Attila Magyar guest editor date: 2019 words: 297 flesch: 29 summary: • process modeling and analysis; control (traditional, intelligent, adaptive, etc.) • system identification and signal processing • electrical transmission systems, smart grids • bioengineering • traffic control • reaction kinetic networks • artificial intelligence • soft computing (neural, genetic, fuzzy algorithms, etc.) • software issues (parallel computing, distributed and network computing, data visualization) • decision making (decision support, data mining) • applications The organizers are grateful to the authors for their contributions. This issue represents the entire spectrum of systems and control engineering as follows: keywords: control cache: hjic-842.pdf plain text: hjic-842.txt item: #596 of 680 id: hjic-843 author: Pózna, Anna I.; Fodor, Attila; Hangos, Katalin M. title: Non-Technical Loss Diagnosis in Electrical Networks With a Radial Layout date: 2018 words: 4642 flesch: 58 summary: These illegal loads should be located in single load networks. Illegal load is a load that originates from a fraudulent meter, i.e. the consumer uses illegal power. keywords: algorithm; currents; detection; difference; load; network; power; subnetworks; voltage cache: hjic-843.pdf plain text: hjic-843.txt item: #597 of 680 id: hjic-844 author: Gaily, Sara El title: Evaluation of Resource optimization based on quantum search date: 2018 words: 3333 flesch: 48 summary: On the other hand, the variance of the pro- posed quantum solution remained approximately linear and tended to zero, therefore, the quantum system con- serves the distribution uniformity. In order to exploit the power of quantum comput- ing in terms of resource distribution, a quantum extreme value searching algorithm was used [5], which will be *Correspondence: elgaily@hit.bme.hu combined with an appropriately designed classical frame- work. keywords: algorithm; distribution; number; quantum; units cache: hjic-844.pdf plain text: hjic-844.txt item: #598 of 680 id: hjic-845 author: Garai, Lőrinc; Horváth, András title: Simulation of color afterimages: An approach to computing virtual color perception date: 2018 words: 4102 flesch: 52 summary: Hungarian Journal of Industry and Chemistry BIOPHYSICAL MODEL OF COLOR AFTERIMAGES 21 Table 3: Comparison of virtual color perception intensity in model situations and in validation test results Ranking in model Ranking category Ranking in validation test results ID Rank ID Median of ranking Corre- lation R → G 1 High B → G 1.00 No G2B2 → R 2 B2R2 → G 2.00 Yes G1B3 → R 3 R → G 3.00 Yes B2R2 → G 4 B → R2G2 4.00 No R → G2B2 5 Medium R → G2B2 4.00 Yes R2G2 → B 6 Low G1B3 → R 4.50 No G → B2R2 7 G2B2 → R 5.00 No B → G 8 G → B2R2 5.00 Yes B → R2G2 9 R2G2 → B 7.00 Yes Matching percentage between model and validation test results: 56% Table 4: Comparison of virtual color perception time pe- riod in model situations and in validation test results Ranking in model Ranking category Ranking in validation test results ID Rank ID Median of ranking Corre- lation R → G2B2 1 High B → G 1.00 No R → G 2 G1B3 → R 2.00 No G → B2R2 3 B → R2G2 3.00 No B2R2 → G 4 R → G2B2 4.00 Yes R2G2 → B 5 Medium G2B2 → R 4.00 No G2B2 → R 6 Low G → B2R2 4.50 No B → R2G2 7 B2R2 → G 5.00 No G1B3 → R 8 R → G 5.00 No B → G 9 R2G2 → B 7.00 No Matching percentage between model and validation test results: 11% • Second, the eyes of the subject were fixed on a circle at the center of the subsequent colored image (Fig. 4) for 30 seconds. A subordinate of afterimages defined in our research is virtual color perception, that is in our interpretation an unusual and intense temporary color perception provoked by a rapid change in the color of the incident light. keywords: color; incident; light; model; perception; photopigment cache: hjic-845.pdf plain text: hjic-845.txt item: #599 of 680 id: hjic-846 author: Al Hemeary, Nawar; Jaworski, Maciej; Kindracki, Jan; Szederkényi, Gábor title: Thermal model development for a CubeSat date: 2018 words: 4968 flesch: 57 summary: Al 6061-T6 uncoated Al 6061-T6 coated Solar cells Specific Heat [J/(kg·K)] 980 980 1600 Emissivity (thermal) 0.08 0.92 0.85 Absorptivity (solar) 0.379 0.09 0.92 Table 2: Material properties of fuel tank. Figure 3: The thermal behavior using 100 % Al during one orbital period ((a) temperatures of the faces and fuel tank, (b) temperature of the fuel tank) (T1, . . . keywords: faces; fuel tank; heat; interval; satellite; solar; temperature cache: hjic-846.pdf plain text: hjic-846.txt item: #600 of 680 id: hjic-847 author: Papp, Dávid; Szűcs, Gábor title: Automated Labeling Process for Unknown Images in an open-world Scenario date: 2019 words: 5053 flesch: 60 summary: The for- mer refers to the detection of images that originate from unknown classes, and the latter includes the detection of unknown images and a labeling process to identify new classes, followed by the incremental learning of these new categories. One way of han- dling detected unknown images is to measure their sim- ilarities and identify new categories. keywords: algorithm; categories; class; cluster; data; doi; images; number; recognition cache: hjic-847.pdf plain text: hjic-847.txt item: #601 of 680 id: hjic-848 author: Fink, Nándor title: Model reference adaptive control for telemanipulation date: 2019 words: 3904 flesch: 58 summary: Keywords: telemanipulation, friction compensation, sliding mode control 1. Figure 16: Bilateral control model. 0 0.5 1 1.5 2 2.5 3 Time keywords: compensation; control; friction; model; motor; system cache: hjic-848.pdf plain text: hjic-848.txt item: #602 of 680 id: hjic-849 author: Greber, Márton; Fodor, Attila title: Simulation of a balanced low-voltage electrical grid using a simplified network model date: 2018 words: 5453 flesch: 65 summary: The novel method of node powers is based on the general calculation technique of node voltages. Keywords: low-voltage distribution system, grid simulation, smart grid, method of node voltages, IEEE European Low-Voltage Test Feeder 1. keywords: algorithm; current; iteration; method; network; node; power; simulation; voltage cache: hjic-849.pdf plain text: hjic-849.txt item: #603 of 680 id: hjic-85 author: Molnár, Z.; Nagy, M.; Aranyi, A.; Hanák, L.; Szánya, T.; Argyelán, J. title: Investigation of Reverse Phase SMB-Chromatographic Bioseparations of Amino Acid Aqueous Solutions date: 2004 words: 4904 flesch: 61 summary: Description of production-scale SMB-LC and small-laboratory SMB-LC equipments There are geometric and other parameters of the 4- column production scale SMB-LC equipment being constructed by the Central Workshop of University of Veszprém: column number is four and made of stainless steel. Desalting of DL-β-phenylalanine was studied on a small-laboratory scale simulated moving bed (SMB) preparative liquid chromatograph (number of columns=6, column length=125mm, column I.D.=13mm). keywords: amino; cm3; column; glycine; min; phase; phenylalanine; smb; solution; zone cache: hjic-85.pdf plain text: hjic-85.txt item: #604 of 680 id: hjic-850 author: Bálint, Roland; Fodor, Attila; Szalkai, István; Szalkai, Zsófia; Magyar, Attila title: Modeling and Calculation of the Global Solar Irradiance on Slopes date: 2019 words: 4222 flesch: 62 summary: Keywords: solar irradiance, modeling, solar geometry, inclined surface 1. A general model of the angle of incidence of solar irradiance with regard to the azimuth is derived in Ref. keywords: angle; earth; irradiance; sun cache: hjic-850.pdf plain text: hjic-850.txt item: #605 of 680 id: hjic-851 author: Balázs, István; Fodor, Attila; Magyar, Attila title: Aggregation of Heterogeneous Flexibility Resources Providing Services for System Operators and the Market Participants date: 2019 words: 4079 flesch: 32 summary: This paper suggests an aggregator framework that provides services for both operators of transmission and distribution systems while optimizes its portfolio to perform on wholesale energy trading markets too. According to the proposed architecture, it has an extended responsibility, enabling the Flexibility Center to control a diverse portfo- lio of distributed resources and optimize their capacities in order to both participate in wholesale energy markets and fulfil external requests for flexibility activation. keywords: aggregator; balancing; distribution; energy; flexibility; generation; optimization; resources; services; system cache: hjic-851.pdf plain text: hjic-851.txt item: #606 of 680 id: hjic-852 author: Fehér, Áron; Márton, Lőrinc title: Comparison of the approximation methods for time-delay systems: application to multi-agent systems date: 2019 words: 4520 flesch: 64 summary: Math., 1996 5(1), 329–359, DOI: 10.1007/BF02124750 [16] Vyhlídal, T.; Lafay, J.F.; Sipahi, R.: Delay sys- tems: From theory to numerics and applications, Advances in Delays and Dynamics (Springer In- ternational Publishing), 2013, DOI: 10.1007/978-3-319- 01695-5 [17] Yi, S.; Duan, S.; Nelson, P.W.; Ulsoy, A.G.: The Lambert W Function Approach to Time Delay Systems and the LambertW_DDE Toolbox, IFAC Proceedings Volumes, 2012 45(14), 114–119, DOI: 10.3182/20120622-3-US-4021.00008 [18] Vyhlídal, T.; Zítek, P.: Quasipolynomial mapping based rootfinder for analysis of Time delay systems, in Proc. of IFAC Workshop on Time-Delay Sys- tems, TDS 2003, DOI: 71–77 (2019) hjic.mk.uni-pannon.hu DOI: 10.33927/hjic-2019-11 COMPARISON OF THE APPROXIMATION METHODS FOR TIME-DELAY SYSTEMS: APPLICATION TO MULTI-AGENT SYSTEMS ÁRON FEHÉR *1,2 AND LŐRINC MÁRTON1 1Department of Electrical Engineering, Sapientia Hungarian University of Transylvania, C.1., Târgu Mureş, 547367, ROMANIA 2Department of Mathematics, University of Pannonia, Egyetem u. 10, Veszprém, 8200, HUNGARY This paper presents a review of dominant pole and model-approximation algorithms for delayed systems that can be applied to multi-agent systems. keywords: agent; algorithm; approximation; delay; mas; matrix; system cache: hjic-852.pdf plain text: hjic-852.txt item: #607 of 680 id: hjic-853 author: Szakonyi, Benedek; Lőrincz, Tamás; Lipovits, Ágnes; Vassányi, István title: Rule-base formulation for clips-based work ergonomic assessment date: 2019 words: 4035 flesch: 53 summary: Keywords: expert system, CLIPS, work ergonomics 1. [10] Berlin, C.; Adams, C.: Production ergonomics: De- signing work systems to support optimal human performance, (Ubiquity Press, London, England) 2017 pp.139-160 DOI: 10.5334/bbe [11] Szakonyi, B.; Lőrincz, T.; Lipovits, Á.; Vassányi, I.: An expert system framework for lifestyle coun- selling. keywords: assessment; clips; doi; ergonomics; rule; system; time; type; user; work cache: hjic-853.pdf plain text: hjic-853.txt item: #608 of 680 id: hjic-854 author: , title: Downloadable Full Issue date: 2019 words: 48837 flesch: 56 summary: Distributed genera- tion (DG), demand response (DR) and storage facilities will become important components of power systems in the future. Computer methods in power system analysis (McGraw-Hill), intern- taional student edn., 1968 keywords: 47(1; algorithm; angle; case; chemistry; color; compensation; control; current; data; denotes; distribution; doi; energy; equations; faces; fig; figure; flexibility; following; fuel; function; grid; hungarian; ieee; images; industry; irradiance; journal; load; matrix; method; model; motor; network; new; number; optimization; paper; parameters; perception; phase; position; power; process; quantum; real; resources; results; satellite; set; simulation; solar; solution; sun; surface; system; tank; temperature; test; time; value; vector; voltage cache: hjic-854.pdf plain text: hjic-854.txt item: #609 of 680 id: hjic-855 author: Németh, Áron title: Investigations Into Succinic Acid Fermentation date: 2019 words: 2303 flesch: 45 summary: 9 variables, i.e. 7 inputs (time, lactic acid, acetic acid, propionic acid, glycerol, ethanol, total sugar) and 2 outputs (succinic acid, CDW), were applied to 58 fermentation samples from which 36 were used for training the network, 11 were selected and 11 were used for testing the behaviour of the model. [3] Sauer, M.; Porro, D.; Mattanovich, D.; Branduardi, P.: Microbial production of organic acids: Expand- ing the markets Trends Biotechnol. 2008 26(2), 100–108 DOI: 10.1016/j.tibtech.2007.11.006 [4] Zeikus, J. G.; Jain,·M. K.; Elankovan, P.: Biotech- nology of succinic acid production and markets for derived industrial products Appl. keywords: acid; co2; fermentation; model; production cache: hjic-855.pdf plain text: hjic-855.txt item: #610 of 680 id: hjic-856 author: Czinkóczky, Réka; Németh, Áron title: Production of the Enzyme Cyclodextrin Glycosyltransferase Using Different Fermentation Techniques date: 2019 words: 3328 flesch: 47 summary: Enzymes for carbohydrate engineering (Progress in Biotechnology) 1996 12 23–41 (Else- vier, Amsterdam, The Netherlands) ISBN: 978-0-444- 82408-0 DOI: 10.1016/S0921-0423(96)80360-1 [3] van der Veen, B. A.; van Alebeek, G.-J. W. M.; Uitdehaag, J. C. M.; Dijkstra, B. W.; Dijkhuizen, L.: The three transglycosylation reactions catalyzed by cyclodextrin glycosyltransferase from Bacillus circulans (strain 251) proceed via different kinetic mechanisms Eur. [21] Uitdehaag, J. C. M.; Kalk, K. H.; van der Veen, B. A.; Dijkhuizen, L.; Dijkstra, B. W.: The cycliza- tion mechanism of cyclodextrin glycosyltransferase (CGTase) as revealed by a γ-cyclodextrin-CGTase complex at 1.8-Å resolution J. Biol. keywords: activity; bacillus; batch; cgtase; cyclodextrin; doi; enzyme; fermentation; growth cache: hjic-856.pdf plain text: hjic-856.txt item: #611 of 680 id: hjic-857 author: Katona, Richárd; Lócskai, Roland; Bátor, Gergő; Krójer, Antal; Kovács, Tibor title: Analysis of Crude Oil in Terms of Fouling and Corrosion date: 2019 words: 3315 flesch: 49 summary: In this study, analytical methods were developed to investigate the effect of crude oils on production in terms of fouling and corrosion, which can be used to characterize crude oil from different sources. In the case of changing crude slates, predicting the impacts of crude oil on production is necessary to ensure safe and profitable processing. keywords: asphaltene; compatibility; content; corrosion; emulsification; fouling; oil; oils; tendency; water cache: hjic-857.pdf plain text: hjic-857.txt item: #612 of 680 id: hjic-858 author: Varga, Béla; Meiczinger, Mónika; Somogyi, Viola title: Immobilization of Laccase in Alginate Beads date: 2019 words: 4341 flesch: 53 summary: Properties such as simple production, easy reten- tion and biodegradable carrier material are advantageous, e.g. entrapping laccase in alginate beads. 2.5 Effect of temperature on alginate beads In order to gather information regarding the effect of tem- perature on enzyme activity within the optimal temper- ature range of wastewater treatment plants [27], the re- action rate of the ABTS transformation was determined inside a thermostatic cabinet (20− 35 °C). keywords: abts; activity; alginate; beads; doi; enzyme; immobilization; laccase; solution; water cache: hjic-858.pdf plain text: hjic-858.txt item: #613 of 680 id: hjic-859 author: Akande, Rukayat; Adeleke, Abraham title: Multistage Gravity Beneficiation of Rutile in a Tar-Free Sand Residue date: 2019 words: 4428 flesch: 63 summary: This study reports on the concentration of rutile in the sand recovered from tar sand in Ondo State in Nigeria. Keywords: Tar sand, rutile, panning, shaking table, pre-concentrate, concentrate 1. keywords: concentrate; residue; rutile; sample; sand; shaking; table; tar sand; water cache: hjic-859.pdf plain text: hjic-859.txt item: #614 of 680 id: hjic-86 author: Fajd, E.; Marton, G. title: Starch Citrate as an Ion Exchange Material – Preparation and Investigation date: 2004 words: 3280 flesch: 60 summary: In further experiments the effect of bead size and the effect of the pH of solution on ion binding capacity was examined and preliminary column experiments were carried out to see how binding and regeneration steps work out in a glass column. 2/1 CA/starch ratio can be considered as an optimal mix composition beyond which no increase in ion binding capacity was experienced. keywords: binding; capacity; citrate; exchange; reaction; starch cache: hjic-86.pdf plain text: hjic-86.txt item: #615 of 680 id: hjic-860 author: Füvesi, Balázs; Ulbert, Zsolt title: GPU-Accelerated Simulation of a Rotary Valve by the Discrete Element Method date: 2019 words: 8631 flesch: 57 summary: The following chapters of this paper describe the dis- crete element method used in the modeling and simula- tion of particle flow, the triangular geometric representa- tion technique used in the analysis of particle-wall colli- sions, the main features of the GPU hardware and parallel programming used in calculations, and the simulation re- sults of the investigation of the effect of geometric and operational parameters of rotary valves on the mass out- flow rate of solid particles. Géotechnique 1979, 29(1), 47–65 DOI: 10.1680/geot.1979.29.1.47 [15] Hoomans, B.P.B., Kuipers, J.A.M., Briels, W.J., van Swaaij, W.P.M.: Discrete particle simulation of bubble and slug formation in a two-dimensional gas-fluidized bed: A hard sphere approach. keywords: contact; gas; mass; outflow; particles; phase; rate; rotary; rotary valve; silo; simulation; speed; valve; vector cache: hjic-860.pdf plain text: hjic-860.txt item: #616 of 680 id: hjic-861 author: Tankovics, András; Takács, Dávid; Szendefy, Judit; Csukás, Béla; Varga, Mónika title: Residence Time Distribution-Based Analysis of an Industrial-Scale Biogas Fermenter date: 2019 words: 5103 flesch: 49 summary: The mixing flows between the 21 (approximately per- fectly mixed) compartments are as follows: - Circflowmix: cyclically changing recycle flow, su- perposed by a bidirectional mixing flow between the an- nular slices above each other; - Gasflowmix: bidirectional mixing flow, induced by the upward biogas flow between the compartments above 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 5000 10000 15000 20000 25000 30000 35000 40000 C o n ce n tr a ti o n , m g /L Time, hour Measured tracer concentration in effluent Figure 3: Measured tracer concentration of Li+ in the ef- fluent of the industrial-scale fermenter (40 kg of lithium chloride dissolved in 150 litres of tap water was added to a sludge of sugar beet slices that entered segment #4 at a flow rate of 43 m3/h for 150 seconds). 47(2) pp. Taking into account the geometrical arrangement, the biogas flow produced and the cyclically changing recycle flow, various mixing models were generated with different compartmentalization and flow structures by applying the method of Programmable Process Structures. keywords: anaerobic; distribution; effluent; flow; mixing; model; process; scheme; sludge; time cache: hjic-861.pdf plain text: hjic-861.txt item: #617 of 680 id: hjic-862 author: Varga, Mónika; Azzaro-Pantel, Catherine; Flores-Perez, José Manuel; Csukás, Béla title: Programmable Process Structure Based Analysis of Hydrogen Supply Chains date: 2019 words: 5327 flesch: 33 summary: According to the recently published special section of the AIChE Journal about “Hydrogen Deployment” [1], the importance of hydrogen energy is expected to grow in the future because stakeholders have just started to discover the potential advantages of it worldwide The two corre- sponding kinds of hydrogen production processes are electrolysis and the different methods of gas separa- tion for hydrogen enrichment, e.g. membrane separation, pressure swing adsorption, etc. keywords: elements; energy; hsc; hydrogen; meta; model; process; production; prototypes; simulation; state; structures; supply; transition cache: hjic-862.pdf plain text: hjic-862.txt item: #618 of 680 id: hjic-863 author: Tarcsay, Bálint Levente; Egedy, Attila; Bobek, Janka; Rippel-Pethő, Dóra title: Investigation of Mixing in Tanks of a Special Geometry date: 2019 words: 4777 flesch: 59 summary: Keywords: tanks with of special geometry, mixing, flow pattern, transfer function model 1. method, transfer functions were identified for the tank by using the experimental RTD curves. keywords: fitting; flow; function; model; rtd; tank; time; transfer; transfer function cache: hjic-863.pdf plain text: hjic-863.txt item: #619 of 680 id: hjic-864 author: Kováts, Nóra; Eck-Varanka, Bettina; Békéssy, Zsófia; Diósi, Dorina; Hubai, Katalin; Korponai, János title: Assessment of the Ecotoxicity of Nanoplastics date: 2019 words: 3245 flesch: 53 summary: Saf. 2014, 102, 48–54 DOI: 10.1016/j.ecoenv.2014.01.003 [25] Booth, A.M.; Hansen, B.H.; Frenzel, M.; Johnsen, H.; Altin, D.: Uptake and Toxicity of Methylmethacrylate-Based Nanoplastic Particles in Aquatic Organisms, Environ. 2014, 468–469, 1–11 DOI: 10.1016/j.scitotenv.2013.08.028 [19] Abbas, M.; Adil, M.; Ehtisham-ul-Haque, S.; Mu- nir, B.; Yameen, B.; Ghaffar, A. et al.: keywords: doi; effects; environ; fischeri; food; nanoplastics; particles; sample; test; vibrio cache: hjic-864.pdf plain text: hjic-864.txt item: #620 of 680 id: hjic-865 author: Tálosi, Gréta; Gergó, Péter; Holló, András title: Biocomponent-Based Quality Improvement Opportunities of Binders for Road Construction date: 2019 words: 4094 flesch: 50 summary: The raw materials of the processed biomass that produce bio-oils include microal- gae Yang et al. examined bio-oils derived from waste wood resources as bitumen modifiers and extenders keywords: asphalt; binders; biocomponent; bitumen; case; oil; properties; samples cache: hjic-865.pdf plain text: hjic-865.txt item: #621 of 680 id: hjic-866 author: , title: Downloadable Full Issue date: 2019 words: 49105 flesch: 51 summary: 1–4 (2019) hjic.mk.uni-pannon.hu DOI: 10.33927/hjic-2019-13 INVESTIGATIONS INTO SUCCINIC ACID FERMENTATION ÁRON NÉMETH *1 1Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Műegyetem rkp. DOI: 10.2225/vol13-issue4-fulltext-6 [10] Bonilha, P. R. M.; Menocci, V.; Goulart, A. J.; Polizeli, M. L. T. M.; Monti, R.: Cyclodextrin gly- cosyltransferase from Bacillus licheniformis: Opti- mization of production and its properties Braz. keywords: 47(2; acid; activity; alginate; analysis; beads; biocomponent; bitumen; case; cgtase; change; chemistry; concentration; contact; content; data; diameter; doi; effect; elements; energy; enzyme; fermentation; fig; figure; fitting; flow; function; gas; hungarian; hydrogen; industry; journal; laccase; mass; materials; method; mixing; model; number; oil; oils; order; outflow; parameters; particles; phase; process; production; properties; prototypes; rate; results; rotary; rtd; samples; sand; silo; simulation; solution; speed; state; structure; supply; system; table; test; time; transfer; unit; valve; volume; water cache: hjic-866.pdf plain text: hjic-866.txt item: #622 of 680 id: hjic-87 author: Majerik, V.; Horváth, G.; Charbit, G.; Badens, E.; Szokonya, L.; Bosc, N.; Teillaud, E. title: Novel Particle Engineering Techniques in Drug Delivery: Review of Coformulations Using Supercritical Fluids and Liquefied Gases date: 2004 words: 8095 flesch: 56 summary: Godinas et al. invented a process wherein an active principle together with a surface modifier is dissolved in a dense gas which is afterwards expanded in an aqueous solution containing a second – optionally, identical to the first – surface modifier and other additives [15]. [72] Mannitol Mixture of drug particles and polymer fibers, 1 - 20 µm Model drugc Eudragit E Solid solution keywords: drug; gas; method; nozzle; particles; pat; pla; polymer; process; size; solution; solvent; water cache: hjic-87.pdf plain text: hjic-87.txt item: #623 of 680 id: hjic-88 author: Hanák, L.; Szánya, T.; Szolcsányi, P. title: Separation by Ion Exchange and Adsorption Parametric Pumping IV. date: 2004 words: 3766 flesch: 59 summary: − The slope and the temperature dependence of ion exchange equilibrium isotherm, which are taken into account with the temperature dependence of ion exchange selectivity coefficients; these are the function of ion exchange resin quality and the ions to be separated, of the solution total concentration and of the applied temperature values. − The ratio of selectivity coefficients, formed on ion exchange on two temperature values (Figure 2.); 1.E-10 1.E-08 1.E-06 1.E-04 1.E-02 1.E+00 0 5 10 15 20 25 30 Cycle number C ol d re se rv oi r, X i 1 4 1 2 1 1.5 1 1.2 1 1.1 Ti/j,C Ti/j,H Co=1.0equ/dm3 Xi,o=0.5 1.E-10 1.E-08 1.E-06 1.E-04 1.E-02 1.E+00 0 5 10 15 20 25 30 Cycle number H ot re se rv oi r, X j Figure 2. keywords: cycle; equilibrium; exchange; ion; number; separation cache: hjic-88.pdf plain text: hjic-88.txt item: #624 of 680 id: hjic-89 author: Hanák, L.; Szánya, T.; Szolcsányi, P. title: Separation by Ion Exchange and Adsorption Parametric Pumping V. date: 2004 words: 3426 flesch: 65 summary: SYMBOLS v0 superficial velocity of liquid phase xj ion ratio of component “j” in the liquid phase xj,0 initial ion ratio of component “j” in the liquid phase yj ion ratio of component “j” in resin phase C0 total cationic concentration of liquid phase C20,j reservoir concentration of component “j” after the 20th cycle L the length of ion exchange column NT theoretical cycle number P20,j product purity of component “j” after the 20th cycle i jT ion exchange selectivity coefficient of ion “i”, related to ion “j” ∆V volume flow through in half cycle α’ dimensionless ion proportion, the ratio of cation amount flowing through during half cycle and ion exchange capacity of the column ηi cycle efficiency related to component “i” 71 REFERENCES 1. Cycle efficiency (ηi) was defined as the ratio of the theoretical and actual cycle numbers. keywords: concentration; cycle; dm3; equ; exchange; ion cache: hjic-89.pdf plain text: hjic-89.txt item: #625 of 680 id: hjic-90 author: Almásy, G. A.; Kollár-Hunek, K. title: Basic Principles of Process Modelling date: 2005 words: 6763 flesch: 44 summary: Our aim is to present some properties of process models necessary to be correct in the sense that they obey the postulates below, i.e., the obvious rules of classical 2 Newtonian physics. The first question is whether it is a necessary condition for process models to fulfil the condition not to contradict the rules of conservation. keywords: density; entity; model; operation; postulate; process; processes; state; streams; subprocesses; time; transfer; variables cache: hjic-90.pdf plain text: hjic-90.txt item: #626 of 680 id: hjic-91 author: Leitold, A.; Hangos, K. M. title: Numerical Method-Independent Structural Solvability Analysis of DAE Models date: 2005 words: 4825 flesch: 48 summary: x x1 xn x' t x x1 xn x' t+h Fig.10 Dynamic representation graph assuming single implicit solution method 19 M t t+h F U TL p TF pF Q L hL hL * hF U' M' s M F U TL p TF pF Q L hL hF U' M' s hL * Fig.11 Representation graph of model M1 with Specification 1 assuming an implicit solution method ( circle of calculation) Dynamic representation graph The value of differential variables is usually computed by using a numerical integration method. keywords: differential; graph; representation cache: hjic-91.pdf plain text: hjic-91.txt item: #627 of 680 id: hjic-912 author: Szalai, István title: Editorial Preface to the Special Issue Dedicated to the Workshop Self-Driving Vehicles date: 2020 words: 240 flesch: 50 summary: 1–1 (2020) hjic.mk.uni-pannon.hu DOI: 10.33927/hjic-2020-01 EDITORIAL PREFACE TO THE SPECIAL ISSUE DEDICATED TO THE WORKSHOP “SELF-DRIVING VEHICLES ISTVÁN SZALAI1 1Institute of Mechatronics Engineering and Research, University of Pannonia, Gasparich Márk utca 18/A, Zalaegerszeg H-8900, HUNGARY István Szalai Professional Leader ”Research of autonomous vehicle systems related to the autonomous test track in Za- laegerszeg“ (EFOP-3.6.2-16-2017-00002) https://doi.org/10.33927/hjic-2020-01 keywords: workshop cache: hjic-912.pdf plain text: hjic-912.txt item: #628 of 680 id: hjic-913 author: Hollósi, János; Krecht, Rudolf; Markó, Norbert; Ballagi, Áron title: Improving the efficiency of neural networks with virtual training data date: 2020 words: 3938 flesch: 57 summary: Experience has shown that the efficiency of road surface detection is improved by using three times as many virtual images, while for protective barrier de- tection it is sufficient to only use virtual images. For road surface segmentation, five different datasets are created from the Cityscapes Dataset and our collec- tion of virtual images. keywords: computer; dataset; images; networks; racing; segmentation; training cache: hjic-913.pdf plain text: hjic-913.txt item: #629 of 680 id: hjic-914 author: Horváth, Ernő; Pozna, Claudiu; Kőrös, Péter; Hajdu, Csaba; Ballagi, Áron title: Theoretical background and application of multiple goal pursuit trajectory follower date: 2020 words: 3907 flesch: 60 summary: dsum = N∑ k=0 ∣∣∣ ∥∥∥−−−→CfGk ∥∥∥−ρf ∣∣∣. (2) Here dsum denotes the total distance for goal point set G. The second section deals with the design strategy of trajectory tracking and defines the problem precisely. keywords: algorithm; angle; distance; error; goal; points; pursuit; set; steering; trajectory; vehicle cache: hjic-914.pdf plain text: hjic-914.txt item: #630 of 680 id: hjic-915 author: Szeli, Zoltán; Szakállas, Gábor title: High-power modular inverter development for electric motor testing purposes date: 2020 words: 2029 flesch: 53 summary: 3.2 Isolated power supply for the gate drivers The power stage includes 6 separate Flyback DC/DC converters that produce an isolated +15 V / −8 V asym- metrical power supply for IGBT gate drivers as seen in Fig. The first version is capable of 600 A at a nom- inal system voltage of 400 V. As the motor controller is equipped with standard interfaces, it is able to adapt power stages to different power levels. keywords: circuit; gate; igbt; power; system; voltage cache: hjic-915.pdf plain text: hjic-915.txt item: #631 of 680 id: hjic-916 author: Unger, Miklós; Horváth, Ernő; Hajdu, Csaba title: LIDAR-based Collision-Free Space Estimation Approach date: 2020 words: 3516 flesch: 66 summary: Clustering is the task of divid- ing the population or data points into a number of groups such that the data points in a group are more similar to other data points in the same group than to data points in other groups. 5. Vertices are side points which form the simplified shape of a polygon. keywords: algorithm; convex; data; line; points; ros; voronoi cache: hjic-916.pdf plain text: hjic-916.txt item: #632 of 680 id: hjic-917 author: Csomós, Bence; Fodor, Dénes title: Identification of the material properties of an 18650 Li-ion battery for improving the electrochemical model used in cell testing date: 2020 words: 5961 flesch: 55 summary: [11] Huang, J.: Diffusion impedance of electroactive ma- terials, electrolytic solutions and porous electrodes: Warburg impedance and beyond, Electrochim. The present paper shows that CPE – and its QPE form – is a recommended choice to yield the best fit in terms of non-Fickian diffusion impedance. keywords: battery; cell; circuit; cpe; diffusion; element; impedance; model; parameters; qpe; randles; soc; warburg cache: hjic-917.pdf plain text: hjic-917.txt item: #633 of 680 id: hjic-918 author: Medve, Hunor; Fodor, Dénes title: Challenges of Localization Algorithms for Autonomous Driving date: 2020 words: 5521 flesch: 53 summary: The main groups of information sources are the fol- lowing: https://doi.org/10.33927/hjic-2020-07 mailto:medve.hunor@mk.uni-pannon.hu 44 MEDVE ÉS FODOR Figure 1: The concept of information fusion • Global Navigation Satellite Systems (GNSS) • Traditional vehicle sensors: – Odometer – Wheel speed sensor – Steering angle sensor • Inertial Measurement Unit (IMU): – Accelerometer – Gyroscope • Optical, sound- and radio-based sensors: – Radar – Ultrasonic sensors – Vision sensors – LiDAR (Light Detection and Ranging) • Vehicle models with various levels of complexity • Databases; offline or cloud-based: – Maps – Traffic situation • Dedicated short-range communication: – Vehicle-to-vehicle (V2V) – Vehicle-to-infrastructure (V2I). A wide range of traditional vehicle sensors have already been installed in most vehicles, moreover, analogue mea- surements are already being processed digitally. keywords: estimation; filter; information; localization; sensors; state; system; time; vehicle cache: hjic-918.pdf plain text: hjic-918.txt item: #634 of 680 id: hjic-919 author: Kohlrusz, Gábor; Fodor, Dénes title: Modeling of Autonomous EV Vector-Controlled Power Conversion System for Battery Management System Design date: 2020 words: 4935 flesch: 52 summary: Keywords: electric power conversion system, autonomous vehicle, battery management, intercon- nected simulation 1. Capacitance Cdl 0.9 F Hungarian Journal of Industry and Chemistry MODELING OF AUTONOMOUS EV POWER SYSTEM FOR BMS DESIGN 53 Figure 4: Three-phase Full-bridge Inverter the resistive drop, the voltage across the inductor and the back electromotive force (back EMF). keywords: battery; control; controller; conversion system; current; model; power; power conversion; simulation; system; time cache: hjic-919.pdf plain text: hjic-919.txt item: #635 of 680 id: hjic-92 author: Gál, G.; Hanák, L.; Argyelán, J.; Strbka, A.; Szánya, T. title: Simulated Moving Bed (SMB) Separation of Pharmaceutical Enantiomers date: 2005 words: 4238 flesch: 63 summary: 3,64 10 11,93 S isomer Productivity (mg S g-1 packing day-1) (mL min-1) Eluant consumption (mL eluent mg-1 S) RG OD SMB 01 10 11,55 4,29 0,23 3,59 3,72 RG OD SMB 02 RG OD SMB 03 With the help of experimental and theoretical optimization of SMB process (switching time decrease, feed concentration increase, volumetric flow-rate change, gradient methods application, column number increase, column configuration change etc.) keywords: column; eluent; hexane; min-1; smb cache: hjic-92.pdf plain text: hjic-92.txt item: #636 of 680 id: hjic-920 author: Horváth, Barnabás; Szalai, István title: Nonlinear Magnetic Properties of Magnetic Fluids for Automotive Applications date: 2020 words: 3016 flesch: 48 summary: The aim of our research was to develop a measuring system which is capable of determining the nonlinear AC sus- ceptibility of magnetic fluids at discrete frequencies and in the presence of a high-intensity driving magnetic field. Introduction Regarding automotive applications, one of the most im- portant characteristics of magnetic fluids is their behav- ior in magnetic fields. keywords: field; frequency; magnetic; measuring; nonlinear; susceptibility cache: hjic-920.pdf plain text: hjic-920.txt item: #637 of 680 id: hjic-921 author: Decsi, Péter; Szalai, István title: Vibration Generator Device Based on Industrial Vibrators date: 2020 words: 2357 flesch: 62 summary: Model., 2017, 47, 400–424, DOI: 10.1016/j.apm.2017.02.035 [6] Yao, G.Z.; Yap, F.F.; Chen, G.; Li, W.H.; Yeo, S.H.: MR damper and its application for semi- active control of vehicle suspension system, Mecha- tronics, 2002, 12(7), 963–973, DOI: 10.1016/S0957- 4158(01)00032-0 Our goal was to develop a low-cost piece of equipment for testing shock absorbers that is ca- pable of generating high frequencies (within an accept- able range for vehicles) and vibrations of low amplitude. keywords: device; force; frequency; model; system; vibration cache: hjic-921.pdf plain text: hjic-921.txt item: #638 of 680 id: hjic-922 author: Nagy, Roland; Szalai, István title: Design and Construction of a Vibration Data Acquisition System for Road Vehicles date: 2020 words: 3143 flesch: 58 summary: Keywords: road vehicle, vibration, data acquisition, microcontroller, accelerometer 1. Due to the important role of vibrations that can occur in road vehicles, it is important to know the condition and characteristics of a road network. keywords: data; diagram; input; microcontroller; road; signal; system; voltage cache: hjic-922.pdf plain text: hjic-922.txt item: #639 of 680 id: hjic-923 author: Mester, Sándor; Szalai, István title: Torque Transmission Time-Constant Examination of a Disk-Type Magnetorheological Clutch date: 2020 words: 1554 flesch: 58 summary: In order to describe the dynamical properties of the system, time constants were measured at different speeds and magnetic inductions. The Hungarian Journal of Industry and Chemistry TORQUE TRANSMISSION TIME-CONSTANT OF A DISK-TYPE MAGNETORHEOLOGICAL CLUTCH 79 Figure 5: CFitted curve of measurements at a speed of n = 46.5 rpm and a magnetic induction of B = 202 mT Figure 6: Time constants as a function of magnetic induc- tion at different speeds fitting was carried out according to the measurements. keywords: constants; fluid; magnetorheological; time; torque cache: hjic-923.pdf plain text: hjic-923.txt item: #640 of 680 id: hjic-924 author: Móricz, László; Szalai, István title: Optimizing the planning and manufacturing processes of electromagnetic energy harvesting equipment date: 2020 words: 2342 flesch: 55 summary: Regarding energy harvesting systems for low fre- quency applications, the possibilities of frequency up- conversion are introduced and achieved in different ways. Keywords: energy harvesting, induced voltage, vibration, linear generator, energy 1. keywords: coil; energy; power; resistance; system; voltage cache: hjic-924.pdf plain text: hjic-924.txt item: #641 of 680 id: hjic-925 author: Busznyák, Tibor; Lakatos, István title: Examination of fuel consumption factors, basics of precision and on-board diagnostic measurements date: 2020 words: 3452 flesch: 57 summary: In statistical works, fuel consumption data require that the energy consumption of vehicles be analyzed correctly. Can a connection between elevation data from global positioning and fuel consumption data from on-board diagnostics at a constant or various speeds be identified? keywords: consumption; fuel; power; resistance; vehicle; velocity cache: hjic-925.pdf plain text: hjic-925.txt item: #642 of 680 id: hjic-926 author: Fertig, Dávid; Boda, Dezső; Szalai, István title: Brownian dynamics simulation of chain formation in electrorheological fluids date: 2020 words: 9349 flesch: 65 summary: Chain length distribution averaged over three time intervals at the beginning (10,000 < t∗ < 25,000), in the middle (25,000 < t∗ < 65,000), and at the end (65,000 < t∗ < 100,000) of chain formation. 95–107 (2020) hjic.mk.uni-pannon.hu DOI: 10.33927/hjic-2020-15 BROWNIAN DYNAMICS SIMULATION OF CHAIN FORMATION IN ELEC- TRORHEOLOGICAL FLUIDS DÁVID FERTIG*1, DEZSŐ BODA1, AND ISTVÁN SZALAI2,3 1Department of Physical Chemistry, University of Pannonia, Egyetem u. 10, Veszprém, 8200, HUNGARY 2Institute of Physics and Mechatronics, University of Pannonia, Egyetem u. 10, Veszprém, 8200, HUNGARY 3Institute of Mechatronics Engineering and Research, University of Pannonia, Gasparich Márk u. 18/A, Zalaegerszeg, 8900, HUNGARY Brownian dynamics (BD) simulations based on a novel Langevin integrator algorithm are used to simulate the dynamics of chain formation in electrorheological (ER) fluids that are non-conducting solid particles suspended in a liquid that has a dielectric constant different from that of the ER particles. keywords: average; chain; constant; dipole; doi; dynamics; fig; fluid; formation; length; particles; rij; simulation; time cache: hjic-926.pdf plain text: hjic-926.txt item: #643 of 680 id: hjic-927 author: Szalay, István; Enisz, Krisztián; Medve, Hunor; Fodor, Dénes title: Localization accuracy improvement of autonomous vehicles using sensor fusion and extended Kalman filter date: 2020 words: 3898 flesch: 53 summary: The aim of the localization algorithm is to estimate the current position (x and y coordinates) and heading (yaw angle ψ) of the vehicle by fusing GPS measurements with dead reckoning based on vehicle sensor signals. = y1 = h ( x1, u1,m1 ) 1TS x1 u1 noise f ( x1, u1, p1 ) = y2 = h ( x2, u2,m2 ) 2TS x2 u2 noise Figure 1: Dead reckoning steps and propagation of the system state formulate the system model in a way that produces the true-position and heading state variables, the input vari- ables of vehicle sensor signals and the outputs of GPS signals. keywords: filter; gps; kalman; localization; model; position; reckoning; system; vehicle cache: hjic-927.pdf plain text: hjic-927.txt item: #644 of 680 id: hjic-928 author: Speiser, Ferenc; Enisz, Krisztián; Fodor, Dénes title: Geospatial Data Manipulation Supporting the Implementation of Driving Simulation Environments date: 2020 words: 2991 flesch: 52 summary: The main advantage of the proposed framework is that if some kind of road network data is available from an area, it is possible to convert it into a road-description format. This paper describes a way of gathering and converting road network information from Open- StreetMap into OpenDRIVE format. keywords: data; driving; environment; information; road; simulation; software; systems cache: hjic-928.pdf plain text: hjic-928.txt item: #645 of 680 id: hjic-929 author: Márton, Zoltán; Fodor, Dénes title: New Hybrid Wavelet and CNN-Based Indirect Tire-Pressure Monitoring System for Autonomous Vehicles date: 2020 words: 5220 flesch: 57 summary: The amplitude was al- tered to such a degree of different frequency components that the location of the peaks remained unchanged. Spectral leakage essentially means that frequency components from one bandwidth also appear in the neighboring bandwidths [9]. keywords: algorithm; cnn; eigenfrequency; fft; frequency; layer; pressure; signal; tire; transform cache: hjic-929.pdf plain text: hjic-929.txt item: #646 of 680 id: hjic-93 author: Keil, F. J.; Flügge, U. title: High Performance Catalytic Tubular Membrane Reactors Owing to Forced Convective Flow Operation date: 2005 words: 6792 flesch: 68 summary: Palladium membranes were the first to be used in catalytic membrane reactor applications because of their specific H2 permselectivity. Keywords: Membrane reactor, forced convective flow, short-contact-time reactor, hydrogen peroxide decomposition *Contact information: E-mail: keil@tu-harburg.de Introduction Membrane reactors combine reaction and separation in a single unit operation. keywords: catalyst; conversion; fig; flux; h2o2; inner; membrane; palladium; reaction; wt-%; ∂ +; ∂ ∂ cache: hjic-93.pdf plain text: hjic-93.txt item: #647 of 680 id: hjic-930 author: Suta, Alex; Tóth, Árpád title: XBRL utilization as an automated industry analysis date: 2020 words: 5588 flesch: 41 summary: Intelligent Archi- tecture for Comparative Analysis of Public Com- panies Using Semantics and XBRL Data. In- ternational Journal of Software Engineering and Knowledge Engineering, 2014, 24(5), 801–823 DOI: 10.1142/S0218194014500314 [6] Joyner, D.: How to Transform XBRL Data into Use- ful Information. keywords: analysis; automotive; chain; classification; companies; data; financial; industry; journal; sec; sic; suppliers; supply; total; xbrl cache: hjic-930.pdf plain text: hjic-930.txt item: #648 of 680 id: hjic-931 author: ., . title: Vol 48, No 1 (2020) Downloadable Full Issue date: 2020 words: 73313 flesch: 56 summary: The converted road-description file can be used in different vehicle test systems as a basis for the func- tional testing of vehicle dynamics and driver assistance systems. István Szalai Professional Leader ”Research of autonomous vehicle systems related to the autonomous test track in Za- laegerszeg“ (EFOP-3.6.2-16-2017-00002) keywords: 48(1; algorithm; analysis; angle; automotive; battery; car; case; cell; chain; chemistry; circuit; components; constant; control; controller; conversion; current; data; denotes; design; different; diffusion; dipole; distance; doi; driving; dynamics; efficiency; electric; energy; environment; error; estimation; field; fig; figure; filter; financial; fluid; following; frequency; function; gps; hungarian; images; impedance; industry; information; input; journal; kalman; layer; length; localization; magnetic; measurement; method; model; modeling; networks; new; nonlinear; number; order; paper; parameters; particles; phase; points; position; power; process; reference; research; resistance; results; road; sensors; set; shows; signal; simulation; speed; state; structure; surface; susceptibility; system; system model; table; test; time; track; use; values; vehicle; velocity; voltage; warburg; xbrl cache: hjic-931.pdf plain text: hjic-931.txt item: #649 of 680 id: hjic-933 author: Škobalj, D.; Zavargó, Z.; Juhász, L. title: WATER TEMPERATURE DISTRIBUTION IN A VERTICAL CROSS-SECTION OF A WET COUNTERFLOW COOLING TOWER date: 2002 words: 2230 flesch: 64 summary: WATER TEMPERATURE DISTRIBUTION IN A VERTICAL CROSS-SECTION OF A WET COUNTERFLOW COOLING TOWER D. SKOBALJ, Z. ZAVARG6 1 and L. JuHAsz1 ( Vujic-Valjevo, Alekse Dundica 61/1, 14000 Valjevo, YU 1Faculty of Technology, University of Novi Sad, Bul. The first theorethical formulation of water cooling in the counter cooling towers was given by Walker et al. keywords: cooling; fill; temperature; water cache: hjic-933.pdf plain text: hjic-933.txt item: #650 of 680 id: hjic-934 author: Şuteu, D.; Bîlbă, D.; Zaharia, C. title: KINETIC STUDY OF BLUE M–EB DYE SORPTION ON ION EXCHANGE RESINS date: 2002 words: 2621 flesch: 58 summary: Taking into account the rate constants, K , at two different temperatures, the activation energy~ Ea. required for sorption process was calculated using Arrhenius equation: K = Koexp( -EaiRT) (3) where Ea is the activation energy/ J mor1 and R- gas constant= 8.3144 Jmor1 K-1 • The values of activation energy (Table 3) have confirmed the diffusion nature of dye sorption. Conclusions Research on the kinetics of Blue M-EB reactive dye sorption by using Purolite anion exchangers of both gel and macroporous structures has resulted in the conclusion that dye sorption is limited by intraparticle diffusion and follows moving - boundary behavior. keywords: blue; diffusion; dye; purolite; rate; resins; sorption cache: hjic-934.pdf plain text: hjic-934.txt item: #651 of 680 id: hjic-935 author: Boyadjiev, C. title: ON THE NON-LINEAR MASS TRANSFER THEORY date: 2002 words: 3702 flesch: 62 summary: Keywords: non-linear effects, Stephan flow, Marangoni effect Introduction A theoretical analysis of non-linear mass transfer has been developed in [1]. In the case of absorption of C02 in H 20 and temperature change because of chemical reaction, the order of the velocity v0 can be determined: (45) 18 In cases of non-linear mass transfer, characteristic scales have to be introduced into (34): keywords: flow; linear; liquid; mass; non; reaction; transfer cache: hjic-935.pdf plain text: hjic-935.txt item: #652 of 680 id: hjic-936 author: Varga, E.; Kádár, Z.; Schuster, K. C.; Gapes, J. R.; Szengyel, Z.; Réczey, K. title: POSSIBLE SUBSTRATES FOR ACETONE–BUTANOL AND ETHANOL FERMENTATION BASED ON ORGANIC BY-PRODUCTS date: 2002 words: 4195 flesch: 55 summary: Their conversion values are low~ therefore they cannot be recommended as ABE fermentation substrates based on these results despite their potentially high carbohydrate contents. Reducing sugar concentrations of enzymatic hydrolysates starting from substrates at varied dry matter contents -Sugar concentration keywords: abe; apple; conversion; experiments; fermentation; fruit; hydrolysis; medium; products; pulp; residues; sugar cache: hjic-936.pdf plain text: hjic-936.txt item: #653 of 680 id: hjic-937 author: Sowa, I.; Kocjan, R.; Świeboda, R. title: A CHELATE SORBENT PREPARED BY THE MODIFICATION OF LICHROPREP RP-8 WITH TITAN YELLOW AND ITS APPLICATION date: 2002 words: 2771 flesch: 58 summary: Titan Yellow ion pairs according to Fig.4. In effect, the carrier surface is isolated from the aqueous bulk phase and the chelating groups are outside the< double layer, capable of binding metal ions in the bulk aqueous solution. keywords: aliquat; chelating; ion; silica; sorbent; titan; yellow cache: hjic-937.pdf plain text: hjic-937.txt item: #654 of 680 id: hjic-938 author: Sutiman, D.; Vizitiu, M. title: THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL – ETHYLENE GLYCOL – ACETIC ACID date: 2002 words: 2000 flesch: 64 summary: The behaviour of three types of steel with a variable carbon content (from 0.2 to 0.4%) is studied in medium of methanol - 10% ethylene glycol - 5% acetic acid with water concentration between 1% to 5%. for every value of water concentration. keywords: concentration; corrosion; h20; system; water cache: hjic-938.pdf plain text: hjic-938.txt item: #655 of 680 id: hjic-939 author: Sutiman, D.; Cailean, V. title: THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL – ETHYLENE GLYCOL – n-BUTIRIC ACID date: 2002 words: 1840 flesch: 63 summary: The behaviour of three types of steel with a variable carbon content (from 0,2 to 0,4 % ) is studied in medium of methanol- 10% ethylene glycol- 5% n-butiric acid with water concentration between 1% to 5 % . The corrosion final compounds, for every value of water concentration, were soluble in the system. keywords: acid; butiric; concentration; corrosion; system; water cache: hjic-939.pdf plain text: hjic-939.txt item: #656 of 680 id: hjic-94 author: Matusek, A.; Czukor, B.; Mérész, P.; Örsi, F. title: Mathematical Modelling in Osmotic Dehydration date: 2005 words: 3790 flesch: 57 summary: The correlation analysis for measured and calculated values gives higher coefficient for water diffusion regarding to the better deviation attribute of the moisture determination, but the deviation attribute of the refraction is lower, as higher the standard error of prediction (SEP). The rate of mass transport depends upon many factors such as concentration, temperature and the kind of osmotic solution, time of treatment, level of agitation, sample-to-solution ratio, vacuum level and different pre-treatments if applied. keywords: concentration; dehydration; diffusion; solution; time; water cache: hjic-94.pdf plain text: hjic-94.txt item: #657 of 680 id: hjic-940 author: Petrescu, S.; Bacaoanu, A. title: LIQUID-SOLID HEAT TRANSFER WITH THE PHASE-CHANGE OF SOLID date: 2002 words: 2188 flesch: 58 summary: Keywords: melting, heat transfer, heat transfer coefficient, melting rate Introduction Technical literature provides a large onumber of papers regarding the heat transfer in liquid - solid systems. S Temperature influence on heat transfer coefficient corresponding to a 60-sec. duration. keywords: coefficient; heat; melting; model; particle; temperature; transfer cache: hjic-940.pdf plain text: hjic-940.txt item: #658 of 680 id: hjic-941 author: Hu, X.; Békássy-Molnár, E.; Vatai, G. title: CHARACTERIZATION OF GEL CONCENTRATION IN ULTRAFILTRATION OF OIL-IN-WATER EMULSION date: 2002 words: 3207 flesch: 63 summary: The model includes the following influence factors: transmembrane pressure, feed concentration, mass transfer coefficient, membrane resistance and so on. Evaluation of Experimental Results Calculations of membrane resistance and gel layer resistance As an example, Fig.2, which plotted the flux with time for different UF membranes f 4 ], was selected to characterize the relationship between liJw and V. The operating pressure is 3 bar, the oil-in-water emulsion concentration is 0.5 vol. keywords: concentration; flux; gel; layer; membrane; permeate; pressure; water cache: hjic-941.pdf plain text: hjic-941.txt item: #659 of 680 id: hjic-942 author: Petrila, C.; Curteanu, S. title: PARAMETRIC SENSITIVITY OF FREE RADICAL POLYMERIZATION ASSOCIATED WITH GEL AND GLASS EFFECTS date: 2002 words: 3957 flesch: 57 summary: The variation of numerical average polymerization degree caused by £ parameter change; solid line - calculus based on sensitivity functions; dotted line - calculus based on model simulations Conclusions This paper is dealing with parametric sensitivity of isothermal batch bulk polymerization of methyl methacrylate. Using a calculus based on sensitivity functions, the quantitative estimation of the parameter influence on the system state and output variables are made. keywords: effect; gel; influence; parameters; polymerization; sensitivity; state; temperature; values cache: hjic-942.pdf plain text: hjic-942.txt item: #660 of 680 id: hjic-943 author: Leitold, A.; Hangos, K. M. title: EFFECT OF STEADY STATE ASSUMPTION ON THE STRUCTURAL SOLVABILITY OF DYNAMIC PROCESS MODELS date: 2002 words: 7441 flesch: 58 summary: Keywords: process models, DAE models, differential index, solvability, structural analysis, steady state assumption Introduction Lumped process models are in the form of differential­ algebraic equations which are sometimes difficult to solve numerically due to index and stiffness problems. to elllighten the importance and significance of analyzmg the solvability properties of process models and the effect of modelling thereon we should recaJJ ~at modelling is one of the key and most labour..consumm.g activity in process system engineering serving as a b~sts for process flowsheeting, process control, fault detection and diagnosis. keywords: differential; graph; index; model; representation; state; type; variable cache: hjic-943.pdf plain text: hjic-943.txt item: #661 of 680 id: hjic-944 author: Kelemen, A.; Szöllősi, A.; Zsótér, A.; Pintye-Hódi, K.; Török, C.; Erős, I. title: MEASUREMENT OF THE SWELLING FORCE OF SOME SODIUM STARCH GLYCOLATE PRODUCTS WITH NEW SOFTWARE date: 2002 words: 2573 flesch: 68 summary: Table 3 Results of the swelling test Pressure Swelling force force f3 ~3.2% (kN) (N) (s) 5 8.56 0.830 119.13 RSD=5.57 SSG1 10 10.09 0.836 108.82 RSD=9.95 15 12.49 0.858 125.87 RSD=5.46 5 5.45 0.858 66.35 RSD=ll.56 SSG2 10 7.16 0.832 61.67 RSD=8.74 15 14.23 0.830 78.99 RSD=11.09 5 6.96 0.816 48.55 RSD=6.44 SSG3 10 8.18 0.814 47.48 RSD=7.62 15 18.33 0.830 95.03 RSD=3.80 5 6.92 0.864 53.36 RSD=6.21 SSG4 10 8.14 0.808 30.10 RSD=9.74 15 9.59 0.832 33.10 RSD=ll.09 5 9.94 0.832 89.24 RSD=7.36 SSG5 10 13.81 0.819 82.33 RSD=8.58 15 13.49 0.831 40.71 RSD=3.11 5 8.59 0.825 40.38 RSD=0.37 SSG6 10 11.25 $ 0.813 48.88 RSD=4.22 15 11.87 0.816 38.74 RSD=2.85 fJ M(t)=M~{l-exp{-[~] ) } C where Cis the time parameter, f3 is the shape parameter, Mmax is the maximum value of the swelling, M is the swelling at time t, and t0 is the start time. Keywords: disintegrant, swelling force, force-time curve, characteristic swelling time Introduction Disintegrants are always added to conventional tablets in order to promote the break-up of the tablets when they are placed in an aqueous environment. keywords: force; pressure; ssg; swelling; time cache: hjic-944.pdf plain text: hjic-944.txt item: #662 of 680 id: hjic-945 author: Swamy, K. M.; Keil, F. J. title: FINE BUBBLE GENERATION IN A COLUMN REACTOR BY PLACEMENT OF A DIAPHRAGM ACROSS A LOW FREQUENCY SOUND FIELD date: 2002 words: 1727 flesch: 68 summary: Keywords: Bubble generation, diaphragm, column reactor, sound field Introduction Fast reactions in bubble columns are mass transfer controlled. In the present mvestlgation, through placement of a diaphragm across a sound field, bubble sizes were further reduced by about 8.3%. keywords: bubble; column; diaphragm; gas; sound cache: hjic-945.pdf plain text: hjic-945.txt item: #663 of 680 id: hjic-946 author: Serbula, S. M. ; Stanković, V. D.; Antonijević, M. M. title: PRESSURE DROP IN ELECTROCHEMICAL CELL WITH FIXED BED date: 2002 words: 4501 flesch: 64 summary: At electrolyte velocity of 0.00587 m/s, 84 10 12 14 16 18 20 't(min.) Fig.4 Dependence of relative pressure drop on time for various electrolyte velocities (diameter of glass particles d=2 mm and current density i=50 Alm2 ) pressure drop in the bed is the highest one. If Eqs.(8) and (4) are devided, we get the influence of gas phase on relative pressure drop: 150· c;w,,u,[I + 2,5(1 ~tp~)J + 1,75c;wifp8qJ, + (1-tp,)pJ !: keywords: bed; drop; electrolyte; gas; particles; phase; pressure; pressure drop; velocity cache: hjic-946.pdf plain text: hjic-946.txt item: #664 of 680 id: hjic-947 author: Yotova, L.; Tsibranska, I.; Lalov, I.; Karsheva, M.; Krysteva, M. title: KINETIC STUDY AND MATHEMATICAL MODELLING OF GROWTH OF ARTHROBACTER OXYDANS CELLS COVALENTLY IMMOBILIZED ON CELLULOSE GRANULES date: 2002 words: 3852 flesch: 60 summary: Analytical procedures Measurement of cell growth Biomass of free cells and those, produced by immobilized cells was measured spectrophotometrically at 600 nm wave length (Perkin- Elmer spectrophotometer, Lambda 2, Germany). Conclusions From the results obtained with covalently immobilized Arthrobacter oxydans cells the following mechanism of cell growth could be proposed: The kinetics of growth for immobilized cells is different and their replication is faster than those of the free ones. keywords: cells; growth; kinetic; mass; oxydans; results; substrate cache: hjic-947.pdf plain text: hjic-947.txt item: #665 of 680 id: hjic-948 author: Seikova, I.; Mintchev, A. title: VARYING POROSITY KINETIC MODEL FOR DIRECT AND REACTIVE SOLID-LIQUID EXTRACTION date: 2002 words: 4572 flesch: 52 summary: A mathematical model is presented accounting for the effects of porosity increase during extraction from vegetable materials. Mathematical model The overall process of extraction with simultaneous chemical reaction involves consideration of the following phenomena: 96 (a) chemical conversion of insoluble compound that is initially adsorbed or chemically bounded in a solid to soluble reaction product, prior to its diffusion through the pore space; (b) parallel release of all-soluble compounds initially present accompanied by additional solvent penetration and porosity increase. keywords: extraction; increase; phase; porosity; reaction; reactive; solid; solvent; volume cache: hjic-948.pdf plain text: hjic-948.txt item: #666 of 680 id: hjic-949 author: Boyadjiev, C. title: ON THE PURIFICATION OF GASES CONTAINING IMPURITIES OF SMALL CONCENTRATION date: 2002 words: 1396 flesch: 65 summary: L u Q s u v A.V 1] 8.cp 105 stoichiometric quantity of the liquid phase, (m3/s) real quantity of the liquid phase, (m 3 /s) relative increasing of the liquid flow rate, (m3 /s) gas flow rate, (m3 / s) specific mass transfer surface, (m2 mass transfer surface/ m3 active zone) gas velocity, (m/ s) active zone volume, (m3 ) increasing active zone volume, (m3 ) purification degree, (%) {S) The experimental data for the gas absorption in the packed column [4] show that the volumetric mass transfer coefficient in gas phase for Raschig rings (502t50x2)mm is k = l.4kg/m3 .bar.s. keywords: gas; mass; zone cache: hjic-949.pdf plain text: hjic-949.txt item: #667 of 680 id: hjic-95 author: Lakatos, B. G.; Moldoványi, N. title: Stability and Bifurcation of Continuous Cooling Crystallizers date: 2005 words: 4503 flesch: 55 summary: 49-56. (2005) STABILITY AND BIFURCATION OF CONTINUOUS COOLING CRYSTALLIZERS B.G. LAKATOS1and N. MOLDOVÁNYI2 1Department of Process Engineering, University of Veszprém, H-8201 Veszprém, P.O. Box 158, HUNGARY 2Honeywell Process Solutions, H-1139 Budapest Petneházy u. 2-4, HUNGARY Stability properties and dynamic behaviour of continuous cooling crystallizers are analysed using a detailed moment equation model. Keywords: Cooling crystallizer, moment equation model, causal loop diagram, stability, bifurcation Introduction Non-isothermal continuous crystallizers, extensively used in the chemical industry, usually are very sensitive to both the external and internal (parameter) disturb-ances. keywords: bifurcation; crystallizer; feedback; nucleation; rate; stability; state cache: hjic-95.pdf plain text: hjic-95.txt item: #668 of 680 id: hjic-950 author: Diaconescu, R.; Tudose, R. Z. title: THE COMPUTER ASSISTED SYNTHESIS FOR OPTIMAL HEAT EXCHANGER NETWORK AT STYRENE POLYMERISATION date: 2002 words: 4403 flesch: 59 summary: [3, 4] presents and analyses 142 works for the synthesis of heat exchanger networks. In this work, a method based on balance calculation for synthesizing optimal heat exchanger networks is presented. keywords: heat; heat exchanger; network; reaction; reactor; transfer cache: hjic-950.pdf plain text: hjic-950.txt item: #669 of 680 id: hjic-951 author: Pisko, M.; Náhlík, J.; Hanta, V. title: INSTRUMENTATION AND CONTROL OF INDUSTRIAL WASTEWATER TREATMENT PROCESSES date: 2002 words: 3516 flesch: 45 summary: This, in combination with increasing loads, and limited availability of resources, calls for efficient methods of wastewater treatment processes. All this means that the knowledge base for conventional activated sludge operations no longer directly applies and has to be adapted along with control methods themselves. keywords: control; flow; methods; oxygen; process; processes; rate; sludge; systems; treatment; wastewater cache: hjic-951.pdf plain text: hjic-951.txt item: #670 of 680 id: hjic-952 author: Scheurer, W.; Richers, U.; Seifert, H.; Hein, K. R. G. title: PRESENT STATUS AND PERSPECTIVES OF CO-COMBUSTION IN GERMAN POWER PLANTS date: 2002 words: 5755 flesch: 63 summary: Moreover, experience accumulated in German coal fired power plants in using supplementary fuels is compiled. In Germany, various waste materials are used in coal frred power plants among other facilities. keywords: approx; coal; combustion; dry; fuels; germany; operation; plants; power; sewage; sludge; table; waste; wood cache: hjic-952.pdf plain text: hjic-952.txt item: #671 of 680 id: hjic-953 author: Szoke, S.; Pátzay, G.; Weiser, L. title: DEVELOPMENT FOR SELECTIVE CESIUM REMOVAL FROM THE EVAPORATION CONCENTRATES OF THE PWR PAKS date: 2002 words: 2353 flesch: 53 summary: S Cesium ion exchange breakthrough curves of un- and pretreated concentrates Fig.6 Filtration and ultrafiltration setup Filtration, adsorption and ultrafiltration experiments The effective removal of the various forms of the long­ lived radionuclides from evaporation concentrate was also investigated using filtration, ultrafiltration and adsorption processes. copper and cobalt­ KCoFC) are selective cesium ion exchangers. keywords: cobalt; concentrate; evaporation; experiments; filtration; ion; removal; ultrafiltration cache: hjic-953.pdf plain text: hjic-953.txt item: #672 of 680 id: hjic-954 author: Pristovnik, A.; Lipuš , L. Č.; Krope , A.; Krope , J. title: THE SIMULATION OF CLUSTER FORMATION PROCESS IN FINE PARTICLES DISPERSION UNDER THE INFLUENCE OF EXTERNAL MAGNETIC FIELD date: 2002 words: 2566 flesch: 56 summary: PRJSTOVNIK A. J.: Configuration and formation of clusters from dispersion particles during the magnetic water treatment, Draft of Doctoral Dissertation, University of Maribor, Faculty of Chemistry and Chemical Engineering, unpublished work, 2001 9. IOVCHEV M.: The Effect of Magnetic Field on an Iron-Oxygen Water System, Khim. The presented model is based on the Monte Carlo Metropolis [4,13] method and bas been used to investigate the properties of colloid particle dispersion in water under the influence of magnetic field [:2,3,5,6,7]. keywords: cluster; dispersion; energy; field; particles; water cache: hjic-954.pdf plain text: hjic-954.txt item: #673 of 680 id: hjic-955 author: Angelov , G.; Gourdon , C. title: STUDY ON THE TURBULENCE IN PULSED STAGEWISE EXTRACTION COLUMNS: TURBULENT MACROSCALE date: 2002 words: 3299 flesch: 57 summary: The distribution of turbulent macroscale L over the stage is determined as depending on stage geometry and Re number. The results for turbulent macroscale L are obtained by simulation of incompressible Newtonian liquid flowing in a typical stage at various flow regimes and variable stage geometry. keywords: area; column; distance; flow; macroscale; plate cache: hjic-955.pdf plain text: hjic-955.txt item: #674 of 680 id: hjic-956 author: Bajdik , J.; Pintye-Hódi, K.; Regdon jr., G.; Haasner , T.; Szabó-Révész, P.; Ulrich , J.; Erős , I. title: EFFECT OF COATING ON THE FLOW, WETTING AND DISSOLUTION FOR DIMENHYDRINATE CRYSTALS date: 2002 words: 3689 flesch: 62 summary: Crystal coating with a suitably quantity of polymer can be more useful for crystal preparation for tabletting than crystal agglomeration because the polymer coating provides additional possibilities to influence positively the disadvantageous properties of the materials (light, moisture and oxygen sensitivity, or a very unpleasant odour and taste). Conclusion The coating of dimenhydrinate crystals improved the low-flow properties of the original particles. keywords: coating; crystals; dimenhydrinate; dissolution; film; particles; polymer; sample; time; water cache: hjic-956.pdf plain text: hjic-956.txt item: #675 of 680 id: hjic-957 author: Szitkai , Z.; Msiza , A. K.; Fraser , D. M.; Rév, E.; Lelkes , Z.; Fonyó , Z. title: COMPARISON OF MATHEMATICAL PROGRAMMING AND PINCH-BASED TECHNIQUES FOR MASS EXCHANGE NETWORK SYNTHESIS date: 2002 words: 4345 flesch: 59 summary: After dealing with practical problems of the mathematical programming methods, the last part of this paper presents MINLP solutions for thirteen example problems solved with pinch methodology by Hallale In this section MINLP solutions for most of the MENS example problems of the thesis of Hallale [7] are presented. keywords: capital; cost; design; example; mass; method; minlp; pinch; problem; solution cache: hjic-957.pdf plain text: hjic-957.txt item: #676 of 680 id: hjic-958 author: Zagrouba , F.; Mihoubi , D.; Bellagi , A.; Szalay , A. title: KINETICS AND CHARACTERISTIC CURVE FOR CONVECTIVE AND INFRA-RED CONDITIONS DURING DRYING OF CLAY date: 2002 words: 3225 flesch: 60 summary: The concept of characteristic drying curve was checked in order to an overall expression of the drying kinetics. Globally, experimental data presented on the following figures show distinctly: at constant drying rate: period is sufficiently long and covers a large part of drying time. keywords: air; coefficient; drying; flux; heat; moisture; temperature; transfer cache: hjic-958.pdf plain text: hjic-958.txt item: #677 of 680 id: hjic-96 author: Pach, F. P.; Szeifert, F.; Németh, S.; Árva, P.; Abonyi, J. title: Fuzzy Association Rule Mining for Data Driven Analysis of Dynamical Systems date: 2005 words: 6785 flesch: 60 summary: Keywords: process modeling, model structure selection, association rules, rule base systems, polymerization Introduction This suitability measure can be used for the purpose of model structure selection prior to the actual parameter identification. keywords: association; data; item; linear; model; output; process; rule; selection; set; sets; structure; support cache: hjic-96.pdf plain text: hjic-96.txt item: #678 of 680 id: hjic-97 author: Luus, R.; Jamme, M. title: Estimation of Parameters in 3-Parameter Weibull Probability Distribution Functions date: 2005 words: 3056 flesch: 59 summary: Maximization of the likelihood function given in Eq.(8) yielded with R = 100 in a computation time of 1.49 s the maximum value L = 1.0285396 × 10-139 with parameter values which are very close to those obtained by EIV, as is shown in Table 1. Minimization of the sum of squares of deviations given in Eq.(9) yielded with R = 100 in a computation time of 0.50 s the minimum S = 5.6267167 × 10-2 with parameter values given in Table 1. keywords: data; parameter cache: hjic-97.pdf plain text: hjic-97.txt item: #679 of 680 id: hjic-98 author: Molnárné-Jobbágy, M.; Kollár-Hunek, K. title: Spline Functions in Evaluation of Explosion Limit Curves for Gas Mixtures date: 2005 words: 3680 flesch: 63 summary: Keywords: Ternary flammable systems, inerting, explosion areas, co-monotonic spline curves Introduction Inerting of explosive fuel-air mixtures is a frequently applied method in the chemical and related industries to prevent fires and explosions. The in-house version of CHEMSAFE® allows a graphical representation of the measured explosion range of ternary systems in triangular diagrams as a function of the concentration of flammable (combustible), oxidising or inert gases. keywords: apex; explosion; gas; inert; lel; point; systems; uel cache: hjic-98.pdf plain text: hjic-98.txt item: #680 of 680 id: hjic-99 author: Szeifert, F.; Nagy, L.; Chován, T.; Abonyi, J. title: Constrained PI(D) Algorithms (C-PID) date: 2005 words: 4363 flesch: 58 summary: The main reasons for this dominancy are the role of PID controllers in the classical control technologies, their position in the engineering curriculum, their availability in DCS’s and not at least the efficiency of their application. At the same time, regarding processes with not higher than second order dynamics, the solution a rigourous model-based one. Keywords: constrained control, PID algorithm, model-based, constrained inverse Introduction Based on different surveys, 95% of control algorithms used in industrial processes is PID or PID modification and most of these is badly tuned. keywords: algorithm; control; controller; model; order; output; pid; process; time cache: hjic-99.pdf plain text: hjic-99.txt