fumecheng: A Pathfinder

This is a computer-generated pathfinder created against the Distant Reader study called fumecheng.

Each Distant Reader study carrel is composed of many individual items. Each item is bibliographically described with author, title, date, summary, and keyword values. Below is a list of the items' most signficant keywords as well as lists of the items themselves. Purpusing the content of this pathfinder provides the student, researcher, or scholar with one way to get their heads around the scope of the carrel. The keywords include:

Contact; System; Analysis; Surface; Method; Criteria; Process; Parameters; Decision; Energy; Time; Data; Control; Wear; Heat; Friction; Optimization; Force; Design; Temperature; Stress; Strain; Frequency; Load; Materials; Values; Speed; Material; Results; Vibration; Water; Flow; Layer; Approach; Cutting; Pressure; Algorithm; Matrix; Structure; Performance; Velocity; Systems; Properties; Element; Efficiency; Engineering; Deformation; Beam; Bone; Rail; Learning; Strength; Problem; Fractal; Solution; Image; Manufacturing; Fuel; Motion; Resistance; Bearing; Theory; Boundary; Dea; Buckling; Body; Features; Gear; Function; Irn; Skull; Tribology; Cos; Filters

Depending on how this pathfinder was created, many of the bibliographic sections will include elaborations on the meaning(s) of the given keywords. These elaborations were generated by feeding the items' summaries to a large langauge model and asking the model to address the question, "What is X?", where "X" is the keyword. The result will be a few sentences of elaboration. Be forewarned. The elaborations are often plausible, but they should not be take as truth. Instead, they should be taken as points for consideration.

• INFLUENCE OF CROSSING WEAR ON ROLLING CONTACT FATIGUE DAMAGE OF FROG RAIL by Kou, Lei; Sysyn, Mykola; Liu, Jianxing (2024) - In this paper, the contact process of wheel passing frog rail is calculated by establishing geometric model. In this study, it is necessary to consider the wheel-rail contact state under the combination of frog rail wear, wheel wear and wing rail wear. Keywords: area; contact; crossing; damage; frog rail; impact; increase; load; rail; rail contact; rail surface; stress; surface; wear; wheel; wing rail
• WEAR LOAD CAPACITY OF CROSSED HELICAL GEARS by Miltenović, Aleksandar; Banić, Milan; Tanasković, Jovan; Stefanović-Marinović, Jelena; Rangelov, Damjan; Perić, Marko (2024) - He showed different approaches in calculating gear wear like Hertz theory, Holm's, and Archard's wear calculation method for wear linear progression. Miltenović, A., Nikolić, V., Milovančević, M., Banić, M., 2012, Experimental and FEM analysis of sintered steel worm gear wear, Transactions of FAMENA, 36(4), pp. Keywords: calculation; capacity; contact; fe1.5cr0.2mo; gears; load; min-1; running; steel; wear; worm
• APPLICATION OF THE METHOD OF DIMENSIONALITY REDUCTION TO CONTACTS UNDER NORMAL AND TORSIONAL LOADING by Willert, Emanuel; Hess, Markus; Popov, Valentin L. (2015) - In a series of recent papers, Popov and collaborators have introduced the so-called method of dimensionality reduction (MDR), which allows solving normal contact problems of axisymmetric elastic and viscoelastic bodies as well as tangential contact problems with a constant coefficient of friction for arbitrary loading histories In the next paragraph we are going to show how this can be done, by the same method, for torsional contact as well. Keywords: contact; r r
• PEAKFORCE QUANTITATIVE NANOMECHANICAL MAPPING FOR SURFACE ENERGY CHARACTERIZATION ON THE NANOSCALE: A MINI-REVIEW by Ha, Heebo; Müller, Sebastian; Baumann, Roelf-Peter; Hwang, Byungil (2024) - Surface energy is influenced by various factors such as surface functionality and morphology. Owing to the high surface-to-volume ratio, surface energy at the nanoscale can be different from that of the bulk. Keywords: adhesion; afm; angle; characterization; contact; force; nanoscale; qnm; surface; surface energy; 𝐹𝑎𝑑ℎ
• MICROSTRUCTURE INFLUENCE ON FRICTION BEHAVIOR OF THE TI6AL4V BIOMEDICAL ALLOY AT LOW LOADS by Zivic, Fatima; Mitrovic, Slobodan; Todorovic, Petar; Adamovic, Dragan; Grujovic, Nenad; Spasic, Marko; Stojadinovic, Ivan (2023) - Comprehensive review of wear mechanisms related to Ti6Al4V alloy, under different contact conditions, is given in [30]. Higher wear rate would be expected for 12 mm/s (with COF value of 2.7), but it was lower in comparison to the test at 4 mm/s. Keywords: alloy; behavior; coefficient; cof; contact; fig; friction; influence; load; microstructure; sample; sliding; speed; surface; ti6al4v; values; wear
• CONTACT INTERACTION OF AN UNDERGROUND PIPELINE WITH SOIL UNDER DYNAMIC IMPACTS by Sultanov, Karim (2024) - Underground pipelines serve as essential engineering life support lines for the population and industry, making them crucial for the economy of any country. Accepted March 28, 2024 Corresponding author: Karim Sultanov Institute of Mechanics and Seismic Stability of Structures named after M.T. Urazbaev, Academy of Sciences of the Republic of Uzbekistan, Durmon yuli street 33, 100125 Tashkent, Uzbekistan E-mail: sultanov.karim@mail.ru https://orcid.org/0000-0002-5526-9862 486 K. SULTANOV The specific characteristics of the contact and friction between underground pipelines and soil are notable due to the significant difference in strength between a steel pipeline and loamy soil. Keywords: contact; fig; friction; interaction; law; layer; pipeline; section; soil; sultanov; wave
• INFLUENCE OF TANGENTIAL SLIDING ON THE CONTACT AREA OF A MACROSCOPIC ADHESIVE CONTACT by Wilhayn, Josefine; Lyashenko, Iakov A.; Li, Qiang; Popov, Valentin L. (2024) - Depending on preloading, shear can lead to increase or decrease of contact area and to decrease or increase of normal contact force. One can see that there is a small jump-like increase in contact area at the point of initial contact, after which the area A increases linearly with further indentation. Keywords: area; contact; contact area; edge; fig; force; indentation; indenter; sliding
• EDITORIAL by Popov, Valentin L.; Khudoynazarov, Khayrulla (2024) - ▪ Contact interaction of an underground pipeline with soil under dynamic impacts (K. Sultanov). Based on numerical simulations with the Boundary Element Method and experiments, the authors argue that the much-debated question of whether shear leads to an increase or decrease of contact area of an adhesive contact and contact strength, cannot be answered unambiguously as the answer depends on preloading history. Keywords: contact; friction; tribology; viscoelastic; workshop
• PREDICTION OF CONTACT DISTRIBUTION ON ROUGH SURFACES USING DEEP LEARNING ALGORITHMS by Jang, Ilkwang; Jang, Yong Hoon (2025) - The deep learning algorithm developed in this study offers ease of application because the structures of existing datasets related to rough surfaces and contact area distributions align well with the proposed model. However, contact area distributions are inherently dependent on the spatial resolution, necessitating the acquisition of datasets across multiple scales. Keywords: accuracy; analysis; area distribution; areas; characteristics; contact; contact area; contact distribution; contact mechanics; contact problems; data; dice; distribution; image; learning; learning model; model; numerical; prediction; results; scale; surface
• SURFACE ENERGY CHARACTERIZATION OF A SINGLE MICROSPHERE PARTICLE USING PEAKFORCE QUANTITATIVE NANOMECHANICAL MAPPING MODE OF ATOMIC FORCE MICROSCOPE by Ha, Heebo; Mueller, Sebastian; Guriyanova, Svetlana; Hwang, Byungil (2025) - Conventional methods for measuring surface energy, such as contact angle or Washburn adsorption, have limitations when applied to microscale powders, including issuers with accurate size handling and bulk material requirements. Using PF-QNM, it was possible to analyze individual particles with surface energy across a broad range. Keywords: afm; angle; cip; composites; contact; energy; force; particles; qnm; surface; surface energy
• METHOD OF DIMENSIONALITY REDUCTION IN CONTACT MECHANICS AND FRICTION: A USERS HANDBOOK. I. AXIALLY-SYMMETRIC CONTACTS by Popov, Valentin L.; Hess, Markus (2014) - Examples for adhesive normal contacts Inserting the MDR transformed profiles into Eqs. [6], and Ciavarella [7] about a close relationship between normal and tangential contacts, the solutions of Galanov and Borodich [8, 9, 10] Received February 20, 2014 / Accepted March 18, 2014 Corresponding author: Valentin Popov TU Berlin, Department of System Dynamics and Physics of Friction, Berlin, Germany E-mail: v.popov@tu-berlin.de Original scientific paper 2 V. POPOV, M. HESS for adhesive contacts of axially-symmetric profiles of power functions (later found independently by Yao and Gao Keywords: contact; fig; force; mdr; popov; profile
• REDUCTION OF RESIDUAL SHEAR STRESS IN THE LOADED CONTACT USING FRICTION HYSTERESIS by Kraft, Adrian; Pohrt, Roman (2016) - We study the evolution of shear stress when the indenter is moved back and forth at falling amplitude. Initially, the pure normal loading can take place without inducing shear stress in Received February 24, 2016 / Accepted July 10, 2016 Corresponding author: Roman Pohrt Technische Universität Berlin, Straße des 17. Keywords: area; contact; indenter; reversal; shear; stick; stress
• INDENTATION OF FLAT-ENDED AND TAPERED INDENTERS WITH POLYGONAL CROSS-SECTIONS by Li, Qiang; Popov, Valentin L. (2016) - 2 Factor β for different polygonal indenters. The numerical indentation tests were carried out for different indenters with power function n from 1 to 20 and the polygonal base parameter m from 3 to 30. Keywords: contact; indentation; indenters; mdr; power; profile
• THE JKR-ADHESIVE NORMAL CONTACT PROBLEM OF AXISYMMETRIC RIGID PUNCHES WITH A FLAT ANNULAR SHAPE OR CONCAVE PROFILES by Willert, Emanuel; Li, Qiang; Popov, Valentin L. (2016) - d d ( ) ( ) ( ) ( ) NF d E ha h                                (29) for fixed loads, and: 0 d ( ) ( ) ( ) ( ) dd h h                                (30) for fixed grips. Keywords: concave; contact; punch
• TANGENTIAL DISPLACEMENT INFLUENCE ON THE CRITICAL NORMAL FORCE OF ADHESIVE CONTACT BREAKAGE IN BIOLOGICAL SYSTEMS by Lyashenko, Iakov A. (2016) - Normalized dependencies of critical normal force zF on tangential force xF for E * =G * at different values of λ: (a) “fixed-grips” loading conditions in both directions; (b) “fixed-load” conditions in the vertical direction and “fixed-grips” conditions in the tangential direction Influence of Tangential Displacement on Critical Normal Force of Adhesive Contact Breakage... 319 Normalized dependencies of critical tangential force xF on λ at zero value of normal force for the parameters of Fig. Keywords: contact; displacement; force
• MODIFYING AND EXPANDING THE SIMULATION OF WEAR IN THE SPHERICAL JOINT WITH A POLYMERIC COMPONENT OF THE TOTAL HIP PROSTHESIS by Pakhaliuk, Vladimir; Poliakov, Aleksandr; Kalinin, Mikhail; Pashkov, Yevgenii; Gadkov, Pavel (2016) - Since the contact pressure in the above formulae is a power function with a negative degree, these relations give a decrease in wear factor depending on the increase of a contact pressure, which means a reduction of wear values that are not uniquely consistent with the physics of the process. The existing method of numerical wear simulation of the sliding couple in the spherical joint comprising a polymer element in terms of refining the calculation taking into account the parametric dependence of wear factor on the contact pressure according to ISO 14242-1 demands and of those during walking gait cycle, is improved. Keywords: contact; factor; fig; gait; head; iso; wear
• THE BOUNDARY ELEMENT METHOD FOR VISCOELASTIC MATERIAL APPLIED TO THE OBLIQUE IMPACT OF SPHERES by Kusche, Stephan (2016) - His theory of normal contacts has been extended to tangential contact theories, considering partial slip [2-9]. In the field of elastic contact mechanics, the Boundary Element Method (BEM) is well established. Keywords: contact; elastic; element; impact
• BIOSIMILAR ARTIFICIAL KNEE FOR TRANSFEMORAL PROSTHESES AND EXOSKELETONS by Poliakov, Aleksandr; Pakhaliuk, Vladimir; Lozinskiy, Nikolay; Kolesova, Marina; Bugayov, Pavel; Shtanko, Petro (2016) - In order to reduce cross links deformations, the load in PAK, for the most part, is transferred from the femur to the tibia directly via bearing contact surfaces, following the centroids in relative elements movements. Artificial knee joints (AK) play an important role in man-machine systems such as transfemoral prosthesis, exoskeletons of lower limbs, two-legged robots, etc. Keywords: contact; joint; knee; links; mechanism; pak; surfaces
• METHOD OF DIMENSIONALITY REDUCTION IN CONTACT MECHANICS AND FRICTION: A USER'S HANDBOOK. II. POWER-LAW GRADED MATERIALS by Hess, Markus; Popov, Valentin L. (2016) -       ca 1 2 1 0 2* 2 2 2 2 ( , ) ( ) ( , ) [6] for normal contacts without adhesion and Chen et al. Keywords: c k; contact; h k; k k; k r; n k
• A THERMAL ANALYSIS OF THE THREADED SPINDLE BEARING ASSEMBLY IN NUMERICALLY CONTROLLED MACHINE TOOLS by Krstić, Vladislav; Milčić, Dragan; Milčić, Miodrag (2018) - Reference load for axial ball bearings for threaded spindles equals 2% of static load of the bearing for axial bearings with contact angle 45°< α <90° Mechanical gear may be: threaded gear (threaded spindle and nut), spur (sprocket) gear (pinion and rack) and timing (toothed) belt gear or chain gear. Keywords: analysis; assembly; bearing; bearing assembly; contact; heat; machine; spindle; threaded
• NORMAL LINE CONTACT OF FINITE-LENGTH CYLINDERS by Li, Qiang; Popov, Valentin L. (2017) - Popov, V.L., Pohrt, R., Heß, M., 2016, General procedure for solution of contact problems under dynamic normal and tangential loading based on the known solution of normal contact problem, The Journal of Strain Analysis for Engineering Design, 51(4), pp. Recently an analytical solution for contact problem of toroidal indenter is given by Argatov et al. Keywords: contact; cylinder; fig; length; line
• THE INFLUENCE OF VISCOELASTICITY ON VELOCITY-DEPENDENT RESTITUTIONS IN THE OBLIQUE IMPACT OF SPHERES by Willert, Emanuel; Kusche, Stephan; Popov, Valentin L. (2017) - A nice overview of elastic impact problems and several analytical solutions including torsional loading can be found in the paper by Jäger Jäger, J., 1993, Elastic contact of Equal Spheres under Oblique Forces, Archive of Applied Mechanics, 63(6), pp. Keywords: contact; impact; j j; problem; viscoelastic
• SIMULATION OF FRICTIONAL DISSIPATION UNDER BIAXIAL TANGENTIAL LOADING WITH THE METHOD OF DIMENSIONALITY REDUCTION by Dimaki, Andrey V.; Pohrt, Roman; Popov, Valentin L. (2017) - This proof can be easily generalized to an arbitrary two in-plane dimensions and shows that the transformation (17) can be applied separately to each component of tangential stress, so we can obtain tangential stresses in y-direction similar to Eq. [5], (see also Chapter 5 devoted to tangential contact in [6]). Keywords: contact; fig; loading; mdr; plane; spring
• DEVICE FOR IN VITRO WEAR ANALYSIS OF BIOMATERIALS IN THE HINGED PROSTHESIS CONFIGURATION by Atahyde, José N.; Fernandes, Beatriz L.; Siqueira, Carlos J. de M.; Nohama, Percy; Fernandes, Carlos R. (2018) - However, very few of them are found to be focused on unconventional knee prostheses (UNCKP). Au, A.G., Raso, J., Liggins, A.B., Amirfazli, A., 2007, Contribution of loading conditions and material properties to stress shielding near the tibial component of total knee replacements, Journal of Biomechanics, 40, pp. Keywords: contact; device; knee; prosthesis; samples; test; uhmwpe; wear
• DUGDALE-MAUGIS ADHESIVE NORMAL CONTACT OF AXISYMMETRIC POWER-LAW GRADED ELASTIC BODIES by Willert, Emanuel (2018) -                                                      2 11 2 1 1 3 1 F , ; ; , 2 2k k Keywords: contact; k k
• SIMULATION OF FRACTURE USING A MESH-DEPENDENT FRACTURE CRITERION IN THE DISCRETE ELEMENT METHOD by Dimaki, Andrey; Shilko, Evgeny; Psakhie, Sergey; Popov, Valentin (2018) - Based on the obtained results, we suggest a mesh-dependent local fracture criterion which allows us to overcome the mentioned problem, namely to avoid dependence of the contact strength on element size. Schematic of the simulated sample; element size d=0.001 m The elastic modulus of the half-space was Ehalf-space = 200 GPa, the elastic modulus of the punch Epunch was varied in a certain range in order to perform a parametric study of the problem. Keywords: contact; criterion; element; fracture; punch; size; space; strength; stress; tensile
• ADHESIVE FORCE OF FLAT INDENTERS WITH BRUSH-STRUCTURE by Li, Qiang; Popov, Valentin L. (2018) - We have numerically studied adhesive contact between a flat indenter with brush structure and an elastic half space using the boundary element method. Three-dimensional numerical methods, in particular the boundary element method have been recently very frequently used to simulate the pull-off process of adhesive contact of different indenters, for example based on the JKR-model (Johnson, Kendall and Roberts) by Pohrt and Popov (2015) Keywords: area; contact; fig; force; pillars
• ADHESIVE WEAR: GENERALIZED RABINOWICZ’ CRITERIA by Popov, Valentin L. (2018) - By probing various positions and diameters, one can identify the material regions which can potentially produce wear particles. The work of Aghababaei, Warner and Molinari improves our understanding of adhesive wear but at the same time puts many new questions. Keywords: c c; contact; criterion; rabinowicz; wear
• THE “SPORT” OF ROUGH CONTACTS AND THE FRACTAL PARADOX IN WEAR LAWS by Ciavarella, Michele; Papangelo, Antonio (2018) - However, this is disappointing as friction has been studied since the times of Leonardo and in 500 years, no predictive model has emerged, nor any significant improvement from rough contact models. It is more likely to be another of the possible paradoxical results of applying multiscale contact models to Archard and Rabinowicz’s ideas. Keywords: archard; area; coefficient; contact; fractal; law; load; model; scale; wear
• ADHESION BETWEEN A POWER-LAW INDENTER AND A THIN LAYER COATED ON A RIGID SUBSTRATE by Papangelo, Antonio (2018) - In the present paper we investigate indentation of a power-law axisymmetric rigid probe in adhesive contact with a thin layer laying on a rigid foundation for both frictionless unbounded and bounded compressible cases. [22] has been proposed [26], which, in boundary element simulations, introduces a mesh dependent criterion (based on the balance between elastic energy release and adhesion work) to numerically solve adhesive contacts of complex shapes, which in principle can be easily generalized to the case of layered systems. Keywords: adhesion; adhesive; case; contact; k k; layer; pull
• FRACTURE MECHANICS SIMPLE CALCULATIONS TO EXPLAIN SMALL REDUCTION OF THE REAL CONTACT AREA UNDER SHEAR by Ciavarella, Michele (2018) - Recently, in a very interesting paper, Sahli et al.[12] make spectacular experiments on the reduction of contact area In a very recent paper, Sahli and coauthors [12] (R. Sahli et al., 2018, “Evolution of real contact area under shear”, PNAS, 115(3), pp. Keywords: adhesion; area; contact; mechanics
• SOLUTION OF ADHESIVE CONTACT PROBLEM ON THE BASIS OF THE KNOWN SOLUTION FOR NON-ADHESIVE ONE by Popov, Valentin L. (2018) - It was communicated privately to colleagues and published for a restricted set of adhesive contact problems in [1]. (6) Solution of adhesive contact problem on the basis of the non-adhesive solution 95 Keywords: contact
• FOREWORD by Psakhie, Sergey G. (2018) - [1] and in the context of much debated influence of the “contact splitting” on the strength of adhesive contacts,  Adhesive contact of gradient media with finite range adhesive forces (E. Willert). This topic is interesting both regarding numerical simulations of adhesive contacts with the Boundary Element Method Keywords: contact; wear
• METHOD OF DIMENSIONALITY REDUCTION IN CONTACT MECHANICS AND FRICTION: A USER’S HANDBOOK. III. VISCOELASTIC CONTACTS by Popov, Valentin L.; Willert, Emanuel; Heß, Markus (2018) - 4 t NF x t w x t J t t t x t        (19) Accounting for compressibility in viscoelastic contact problems is, in general, a rather non-trivial task Keywords: contact; g g; g t; t t; viscoelastic
• ENERGY LOSS AND WEAR IN SPHERICAL OBLIQUE ELASTIC IMPACTS by Willert, Emanuel (2019) - Key Words: Elastic Impacts, Friction, Energy Dissipation, Wear 1. INTRODUCTION Impact wear, i.e. material degradation due to the repetitive impacting of solid particles onto a surface is a serious source of damage and failure in several technical systems like steam generator tubes [1], mining machinery The wear loss in impact wear has been reported in the literature to be proportional to the amount of energy dissipated during the impact [1]. Keywords: contact; energy; impact; wear
• NUMERICAL METHODS FOR THE SIMULATION OF DEFORMATIONS AND STRESSES IN TURBINE BLADE FIR-TREE CONNECTIONS by Benad, Justus (2019) - The MDR is an efficient tool for calculating surface deformations and stresses of elastic or viscoelastic bodies which are brought into contact. As the disk profile is modeled as an elastic half-space it can be regarded as even for the determination of the dependencies of surface deformations and forces. Keywords: contact; deformations; fig; fir; method; space; tree; turbine;  
• GENERALIZED ARCHARD LAW OF WEAR BASED ON RABINOWICZ CRITERION OF WEAR PARTICLE FORMATION by Popov, Valentin (2019) - Key words: Adhesive wear, Archard, Rabinowicz, Particle formation, Roughness 1. INTRODUCTION In 1953, Archard published an article with the modest title “Contact and Rubbing of Flat Surfaces” [1], in which he analyzed the contact of rough surfaces and on this basis, among other things, formulated the law of adhesive wear. This energy can relax by dislodging wear particles, but only if the stored elastic energy is larger than the energy needed to create new free surfaces, ~ wD 2 , where w is the specific work of separation: 2 3 20 2 D wD G   . Keywords: archard; contact; law; rabinowicz; size; wear; work
• WEDGING OF FRICTIONAL ELASTIC SYSTEMS by Kim, Sangkyu; Jang, Yong Hoon; Barber, James R. (2019) - The condition for wedging is reduced to the requirement that a prescribed set of constraint vectors should fail to positively span the N-dimensional vector space of nodal displacements. Constraint vectors When there are no external loads, the inequalities (6) take the form vfBA vfBA N j jijij N j jijij    11 0)( and0)( (7) Wedging of Frictional Elastic Systems 145 using Eq. Keywords: condition; contact; friction; system; wedging
• ON ADHESIVE THEORIES IN MULTILAYERED INTERFACES, WITH PARTICULAR REGARD TO "SURFACE FORCE APPARATUS" GEOMETRY by Tricarico, Michele; Papangelo, Antonio; Constantinescu, Andrei; Ciavarella, Michele (2019) - [3] and Israelachvili and Tabor [4], it comprises thin sheets of molecularly smooth mica, or similar material, glued to the cylindrical glass lenses of equal radii, which are then pressed into elastic contact with their axes at right angles. Assuming the final value of displacement δ2 [displacement control], contact areas A1 and δ1 are obtained by minimizing the total potential energy 1U A   (6) Keywords: contact; control; displacement; force; layer; load; sfa
• A STUDY ON GROSS SLIP AND FRETTING WEAR OF CONTACTS INVOLVING A POWER-LAW GRADED ELASTIC HALF-SPACE by Hess, Markus (2019) - Ke, L.L., Wang, Y.S., 2010, Fretting contact of two dissimilar elastic bodies with functionally graded coatings, Mechanics of Advanced Materials and Structures, 17(6), pp. 433-447. 23. 47 - 64 https://doi.org/10.22190/FUME190121010H © 2019 by University of Niš, Serbia | Creative Commons License: CC BY-NC-ND Original scientific paper  A STUDY ON GROSS SLIP AND FRETTING WEAR OF CONTACTS INVOLVING A POWER-LAW GRADED ELASTIC HALF-SPACE Markus Heß Department of System Dynamics and Friction Physics, Berlin University of Technology, Germany Abstract. Keywords: contact; force; fretting; half; k k; law; power; space; state; wear
• FROM WINKLER’S FOUNDATION TO POPOV’S FOUNDATION by Argatov, Ivan (2019) - [22] that — as far as one is interested in the stiffness of the Hertzian type contact — the three-dimensional contact problem can be reduced to a one-dimensional problem for a Winkler foundation, the MDR has grown to become a comprehensive methodology for dealing with a wide class of elastic contacts. To conclude, Popov’s foundation, which serves as the basis for the MDR, represents a major advance in developing a unified approach to effective dealing with elastic contacts. Keywords: area; contact; foundation; mdr; mechanics; popov; winkler
• FOREWORD by Popov, Valentin (2019) - Only deviation from this bound (for example due to transport of wear particles) makes the dependency of wear intensity on the specific work of separation possible. Wear belongs to the most complicated tribological phenomena, but still remains not well understood. Keywords: contact; law; paper; wear
• HIGH-FREQUENCY VIBRATIONS IN THE CONTACT OF BRAKE SYSTEMS by Otto, Johannes; Ostermeyer, Georg-Peter (2019) - f. Dynamik und Schwingungen, Schleinitzstraße 20, 38106 Braunschweig, Germany E-mail: j.otto@tu-bs.de 104 J. OTTO, G.-P. OSTERMEYER friction brake, in which high friction is desired. In order to make a scientific contribution to this complex topic, this work focuses on the topic of friction- induced high-frequency oscillations within the boundary layer between brake pad and brake disc. Keywords: brake; contact; frequency; friction; khz; pad; vibrations
• CONTACT OF MULTI-LEVEL PERIODIC SYSTEM OF INDENTERS WITH COATED ELASTIC HALF-SPACE by Goryacheva, Irina G.; Torskaya, Elena V. (2019) - Numerical- analytical method is developed to determine contact pressure distribution and internal stresses taking into account mutual effect of contact spots. Contact pressure is presented as a stepwise function being constant inside each element. Keywords: contact; curves; effect; indenters; level; pressure; space; system
• DYNAMICAL CONTACT PARAMETER IDENTIFICATION OF SPINDLE-HOLDER-TOOL ASSEMBLIES USING SOFT COMPUTING TECHNIQUES by Čiča, Đorđe; Zeljković, Milan; Tešić, Saša (2020) - Erturk, A., Ozguven, H.N., Budak, E., 2006, Analytical modeling of spindle-tool dynamics on machine tools using Timoshenko beam model and receptance coupling for the prediction of tool point FRF, International Journal of Machine Tools and Manufacture, 46(15), pp. The identification approach based on GA was also experimentally verified in terms of identification contact parameters at the holder-tool interface of a free-free spindle-holder-tool assembly. Keywords: assembly; contact; frf; holder; identification; interface; optimization; parameters; spindle; stiffness; tool
• A FINITE ELEMENT MODEL OF IN VIVO MOUSE TIBIAL COMPRESSION LOADING: INFLUENCE OF BOUNDARY CONDITIONS by Razi, Hajar; Birkhold, Annette I; Zehn, Manfred; Duda, Georg N; Willie, Bettina M; Checa, Sara (2014) - So far, the direct link between in vivo bone loading, tissue adaptation and local mechanical strain stimulus remains unclear. A major reason is the lack of knowledge on the local mechanical strain and how it depends upon the local in vivo bone loading. Keywords: bone; boundary; compression; conditions; contact; fig; knee; loading; model; mouse; mouse tibia; strains; surfaces; tibia; vivo
• NUMERICAL SIMULATION OF SINGLE POINT INCREMENTAL FORMING FOR ASYMMETRIC PARTS by Vosniakos, George-Christopher; Pipinis, Gabriel; Kostazos, Protesilaos (2021) - Dejardin, S., Thibaud, S., Gelin, J.C., Michel, G., 2010, Experimental investigations and numerical analysis for improving knowledge of incremental sheet forming process for sheet metal parts, Journal of Materials Processing Technology, 210(2), pp. Blaga, A., Bologa, O., Oleksik, V., Breaz, R. 2011, Influence of tool path on main strains, thickness reduction and forces in single point incremental forming process, Proceedings in Manufacturing Systems , 6(4), pp. 2-7. 12. Keywords: contact; fig; forming; parts; point; process; sheet; simulation; spif; tool; toolpath
• SIMULATION OF A SINGLE THIRD-BODY PARTICLE IN FRICTIONAL CONTACT by Li, Qiang (2020) - In more detail, the simulation of particle contact is the following. We studied a simple case of third body particle: a single deformable particle is compressed by two parallel plates. Keywords: body; contact; friction; particle; state
• AN ANALYTICAL APPROACH TO THE THIRD BODY MODELLING IN FRETTING WEAR CONTACT: A MINIREVIEW by Argatov, Ivan I.; Chai, Young Suck (2021) - It goes without saying that, while a substantial progress has been made in recent years in analysis of fretting wear (without third body) both in gross-slip and partial-slip regimes as well as in two- and three-dimensional settings, the problem of third body modelling is still under-researched, in particular, in regard to modelling the in time and in-plane evolution of the third-body layer under partial-slip fretting wear conditions. In fretting wear contact, the third body is defined as the wear debris bed between two contacting bodies. Keywords: body; body layer; contact; debris; fretting; layer; mechanics; wear
• AN EXPERIMENTAL STUDY ON THIRD-BODY PARTICLE TRANSPORT IN SLIDING CONTACT by Li, Qiang; Lyashenko, Iakov A.; Starcevic, Jasminka (2021) - The elastic interaction among particle, wavy surface and foundation could be understood by numerical simulation using for example the Fast Fourier Transform assisted Boundary Element Method in which adhesion or friction could be taken into account and the state of particles (sticking, rolling or sliding) could be identified [13, 14]. An Experimental Study on Third-Body Particle Transport in Sliding Contact 5 4. CONCLUSION An experimental study on particle transport in three-body contact was reported. Keywords: body; contact; fig; particles; sliding
• A DISCRETE ELEMENT FORMALISM FOR MODELLING WEAR PARTICLE FORMATION IN CONTACT BETWEEN SLIDING METALS by Shilko, Evgeny V.; Grigoriev, Aleksandr S.; Smolin, Alexey Yu. (2021) - Despite large capabilities, the formalism of the method needs further development to study the evolution of transfer fragments in metallic friction pairs, including the formation of large interfacial elements and the competition of their evolutions. We show that the model allows adequate describing the formation and evolution of large interfacial elements as well as the competition between interfacial elements in the contact zone. Keywords: contact; elements; formation; fragments; friction; materials; model; particles; plastic; strain; stress; surfaces; value; wear; welding
• SHAPE OF A SLIDING CAPILLARY CONTACT DUE TO THE HYSTERESIS OF CONTACT ANGLE: THEORY AND EXPERIMENT by Popov, Valentin L.; Lyashenko, Iakov A.; Starcevic, Jasminka (2021) - Popov, V.L., Lyashenko, I.A., Starcevic, J., 2021, Shape of a sliding capillary contact due to hysteresis of contact angle (experiment with indenter R=33mm), supplementary video. Popov, V.L., Lyashenko, I.A., Starcevic, J., 2021, Shape of a sliding capillary contact due to hysteresis of contact angle (experiment with indenter R=100mm), supplementary video. Keywords: angle; boundary; contact; fig; force; friction; indenter; shape
• A RIGOROUS MODEL FOR FREQUENCY-DEPENDENT FINGERPAD FRICTION UNDER ELECTROADHESION by Forsbach, Fabian; Heß, Markus (2021) - Ridge contact area For decreasing thickness of the stratum corneum and increasing ridge contact area (on the upper left and right of Fig. 3, respectively), the electroadhesive force increases approximately linearly in the whole frequency spectrum. Keywords: area; contact; force; frequency; friction; gap; model; voltage
• ANALYSIS OF IMPACT ON COMPOSITE STRUCTURES WITH THE METHOD OF DIMENSIONALITY REDUCTION by Popov, Valentin L. (2015) - In the present paper, we discuss the impact of rigid profiles on continua with non-local criteria for plastic yield. However, it is well known that the processes of plastic deformation, damage and fracture, independently of the detailed mechanism, are always non-local processes. Keywords: contact; dimensionality; indentation; plastic; popov
• SELF-CONSISTENCY CONDITIONS IN STATIC THREE-BODY ELASTIC TANGENTIAL CONTACT by Willert, Emanuel (2024) - Because of that it is not feasible – although theoretically possible based on the known solution procedures for tangential contact problems with arbitrary loading histories [16] – to give a comprehensive analytic solution for Ti. In the general 3D case, there should also be contact spots in the lateral direction (outside the plane shown in Fig. 1), to ensure lateral stability during tangential motion, but this will be neglected in the following analysis. Keywords: body; contact; forces; particle; sliding
• RELATION OF KINEMATICS AND CONTACT FORCES IN THREE-BODY SYSTEMS WITH A LIMITED NUMBER OF PARTICLES by de Payrebrune, Kristin M. (2022) - The kinematics of individual particles or a layer of abrasive particles directly influences the material removal and the occurring process forces. 9 Black and white surface images of steel samples generated with different silicon carbide particles, rotational speeds and with an applied normal force Fz = 40 N. The arrow indicates the direction of particle motion with the upper side pointing outwards in a). Keywords: contact; fig; force; force ratio; layer; motion; particles; ratio; rolling; sliding; surface
• INVESTIGATION OF INFLUENCES OF FABRICATION TOLERANCES ON OPERATIONAL CHARACTERISTICS OF PIEZO-ACTUATED STICK-SLIP MICRO-DRIVES by Nguyen, Xuan-Ha; Nguyen, Hung-Anh (2022) - A. H. NGUYEN Table 2 Standard parameters dependent on the radius of hemispheres used in simulations [20] Parameters 𝑅 = 0.25 𝑚𝑚 𝑅 = 0.5𝑚𝑚 𝑅 = 1𝑚𝑚 Stiffness of actuators - 𝑘𝑝 (𝑁/𝑚) 4 × 106 6 × 106 6.5 × 106 Damping ratio - 𝑐𝑝 (𝑘𝑔/𝑠) 10 14 16.3 Mass of actuator - 𝑚𝑎 (𝑔) 1.1 × 10−5 1.6 × 10−5 2.2 × 10−5 Preload range - 𝐹𝑝 (𝑁) 0.1 ÷ 0.5 0.1 ÷ 0.8 0.1 ÷ 1.5 Actuation amplitude - 𝐴 (𝑛𝑚) 96 160 200 Table 3 Parameter variation depending on the fabrication and assembly tolerance Parameter Position Standard value Varied value Angle between two actuator blocks on one side of the runner (𝛿) Type-A side Type-B side 𝛿 = 90° 𝛿 = 80°/100°, 70°/110 Key words: Microrobotics, Stick-slip micro-drivers, Piezo actuators, Contact mechanics, Dynamic simulation, Friction Received March 11, 2021 / Accepted April 12, 2021 Corresponding author: Xuan-Ha Nguyen Department of Machine Design and Robotics, School of Mechanical Engineering, Hanoi University of Science and Technology, Hanoi 112452, Vietnam E-mail: ha.nguyenxuan@hust.edu.vn mailto:ha.nguyenxuan@hust.edu.vn 110 H. X. NGUYEN, A. H. NGUYEN Keywords: actuators; amplitude; case 𝑅; contact; fabrication; fig; hemispheres 𝑅; piezo; preload; runner; tolerance; 𝑅 =
• NON-FRICTIONAL DAMPING IN THE CONTACT OF TWO FIBERS SUBJECT TO SMALL OSCILLATIONS by Popov, Mikhail (2015) - Now, when the oscillation of contact forces is known, the corresponding components of relative displacement of contacting bodies, ux and uz can be found by dividing the force increments by contact stiffness kx in the tangential direction or kz in normal direction. As noted above, we assume that the indentation depth is small compared to the deflection of the beam, and apply non-penetration condition, uz = 0, which leads to a linear relationship between contact force and deflection of the free end: 0, 3  z zF EI W l . Keywords: contact; damping
• EXPERIMENTAL INVESTIGATION OF THE ADHESIVE CONTACT WITH ELASTOMERS: EFFECT OF SURFACE ROUGHNESS by Voll, Lars (2015) - In a variety of applications of elastomers adhesive forces play a significant role, which may be desirable or undesirable. These were pressed into the elastomer with different normal forces. Keywords: adhesion; contact; elastomer; force; roughness
• ADHESIVE CONTACT SIMULATION OF ELASTIC SOLIDS USING LOCAL MESH-DEPENDENT DETACHMENT CRITERION IN BOUNDARY ELEMENTS METHOD by Pohrt, Roman; Popov, Valentin L. (2015) - Using two examples with known analytical solutions, we show that this approach can successfully simulate the pull-off of adhesive contact. In the first step, contact area A is left unchanged and the stresses are solved which are necessary for eliminating the gap between the bodies. Keywords: contact; grid; points
• FLASH TEMPERATURES GENERATED BY FRICTION OF A VISCOELASTIC BODY by Heise, Rainer (2015) - j j j j j j j j j z z z z p f u f f v dt dx       (53) The contact length is computed as the sum over the number of contact site times the spatial step . Keywords: contact; force; friction; h h; j j; surface; temperature;  
• FFT-BASED IMPLEMENTATION OF THE MDR TRANSFORMATIONS FOR HOMOGENEOUS AND POWER-LAW GRADED MATERIALS by Willert, Emanuel (2021) - the results of a convergence study for that algorithm with an analytical solution, 2 2 24 ˆ ˆ( ) , ( ) (2 ) 3 q a a= = − − +       (18) are given. j + + − + + + = +  = − − = − = −   +    = − + −             (29) 4. Keywords: contact
• MIXED AND BOUNDARY LUBRICATION IN ROLLING CONTACT: EXPERIMENT AND SIMULATION by Li, Qiang; Pohrt, Roman (2014) - [8] for asperity contacts. It has some major advantages in computational complexity compared to other methods that can simulate asperity contact. Keywords: contact; fig; film; layer; lubrication; model; rolling; simulation; surfaces

• TOWARD AN INTEGRATED INFORMATION SYSTEM FOR THE DESIGN, MANUFACTURING AND APPLICATION OF CUSTOMIZED IMPLANTS by Mišić, Dragan; Manić, Miodrag; Vitković, Nikola; Korunović, Nikola (2015) - The chosen material is put in the variable material, which is later accessible from the system for process management. Instead of changing process definition and adapting it to the new conditions every time a change occurs, we enhanced the system by connecting it to the expert system which deals with unpredicted situations. Keywords: bone; expert; ident; information; manufacturing; material; osteofixation; process; rules; system; text
• A LOW-COST APPROACH TO DATA-DRIVEN FUZZY CONTROL OF SERVO SYSTEMS by Precup, Radu-Emil; Preitl, Stefan; Bojan-Dragos, Claudia-Adina; Hedrea, Elena-Lorena; Roman, Raul-Cristian; Petriu, Emil M. (2022) - 5 Real-time experimental results expressed as fuzzy control system responses y and u (PWM indicates Pulse Width Modulation) 32 R.-E. PRECUP, S. PREITL, C.-A. BOJAN-DRAGOS, ET AL. fuzzy control system exhibits good control system dynamics performance with respect to the 40 rad step modifications of the reference input. Classical and recent applications of fuzzy control deal with Popov-type stability analysis [32], embedded fuzzy control system for machining processes Keywords: approach; control; control system; controller; data; fig; model; parameters; precup; process; r.-e; servo; step; system; tuning
• NUMERICAL SIMULATION OF DYNAMICS OF BLOCK MEDIA BY MOVABLE LATTICE AND MOVABLE AUTOMATA METHODS by Filippov, Alexander E.; Popov, Valentin L. (2023) - The equations of the BK model can be written in the following form: Block-media Motion Lattice and Movable Automata Numerical Models 555 ( ) ( ) 2 2 1 1 12 2 ( ) j j j j j j u m k u u u k vt u F v t + −  = + − + − −  , (1) where v=const is the external driving velocity and vj≡∂uj/∂t is an array of individual block velocities (j=1, … N). The system of equations of motion takes the form: ( ) ( ) 2 , , 2 1, 1, , 1 , 1 , 1 , ,2 4 ( ); j n j n j n j n j n j n j n j n j n u u m k u u u u u k vt u F v t t + − + −   = + + + − − + − +    (4) ( ), , 1 0 , 2 , , , , ( ( )) , 0, 0 ( ) 0 j n j n j n j n j n j n j n F v t F F v v t F v v     = − +    = −  . Keywords: block; fig; friction; instant; j j; model; motion; plates; system; time
• DESIGNING AN EFFICIENT OBSERVER FOR THE NON-LINEAR LIPSCHITZ SYSTEM TO TROUBLESHOOT AND DETECT SECONDARY FAULTS CONSIDERING LINEARIZING THE DYNAMIC ERROR by Mobki, Hamed; Sedighi, Morteza Homayoun; Azizi, Aydin; Eskandari, Mir Mohammad (2022) - The ability to detect faults quickly, without the need for signal excitation, and to detect faults online have made the observer-based fault detection one of the most popular methods for fault detection in non-linear systems; hence, numerous efforts have been made in recent years to further develop the mentioned method. [18-21] have been used frequently in non-linear systems, and a few cases where the Kalman Filter has been used are presented in refs. Keywords: detection; error; fault; non; observer; system
• DESIGN AND TUNING OF THE LYAPUNOV BASED NONLINEAR POSITION CONTROL OF ELECTROHYDRAULIC SERVO SYSTEMS by Kastrevc, Mitja; Gubeljak, Nenad; Detiček, Edvard (2022) - Nonlinear systems can be divided into subsystems, whose numbers depend on dynamical model order. Because designing positioning servo systems are complex spatially for additional boundary conditions, computer simulation of the behavior of such systems is necessary. Keywords: backstepping; control; controller; parameters; servo; system
• A STUDY OF THE USE OF MIXED REALITY FOR CAPTURING HUMAN OBSERVATION AND INFERENCES IN PRODUCTION ENVIRONMENTS by Stojkovic, Milos; Turudija, Rajko; Trifunovic, Milan; Pavlovic, Marko; Jovanovic, Ivan; Uzelac, Nenad; Milenkovic, Vladeta (2022) - Going a step further than merely using AR to replace maintenance manuals, send expert instructions, visualize data or “overlap” the virtual onto the real world, AR systems can also be combined with machine sensors, machine learning technology, and other 8 M. STOJKOVIC, R. TURUDIJA, M. TRIFUNOVIC, ET AL. pillars of I4.0, to get great results. The most popular areas of AR applications were assembly and maintenance, but closely followed by training/learning, with production design, safety, remote assistance, and robotics being less popular areas of research. Keywords: app; capturing; context; data; human; information; knowledge; learning; observation; operator; process; production; reality; system
• OPTICAL MODEL AND NUMERICAL SIMULATION OF THE NEW OFFSET TYPE PARABOLIC CONCENTRATOR WITH TWO TYPES OF SOLAR RECEIVERS by Pavlović, Saša; Vasiljević, Darko; Stefanović, Velimir; Stamenković, Zoran; Ayed, Sadoon (2015) - 6 a) Structure of the new type of solar offset parabolic concentrator; b) Geometrical model of the new type of solar offset parabolic concentrator Usually the paraboloids that are used in solar collectors have rim angles from 10 to 90 degrees. Keywords: absorber; concentrator; dish; energy; fig; offset; parabolic; parabolic concentrator; rays; receiver; solar; system
• CONTROL OF A WIRE TENSIONING SYSTEM WITH FORCE PREDICTION USING ARTIFICIAL NEURAL NETWORKS by Pavlović, Vukašin; Tomić, Miša; Stan, Sergiu-Dan; Banić, Milan; Simonović, Miloš; Milošević, Miloš (2024) - Depending on the purpose, wire tensioning systems can be generally divided into two groups: constant tension control and variable tension control [5], where constant tension control is used in fields such as printing and papermaking, while variable tension control can be used in fields where wire can be wound/unwound on a winch or reel. The problem of wire tensioning control in the dynamic system when the robotic units move was considered. Keywords: control; force; network; system; tension; tensioning; units; winding; wire
• A MODIFIED FMEA APPROACH BASED INTEGRATED DECISION FRAMEWORK FOR OVERCOMING THE PROBLEMS OF SUDDEN FAILURE AND ACCIDENTAL HAZARDS IN TURBINE AND ALTERNATOR UNIT by Kushwaha, Dinesh Kumar; Panchal, Dilbagh; Sachdeva, Anish (2025) - Failure risk analysis of transmission system of an automobile industry was conducted to study the unavailability of considered system [17]. [21] proposed a fuzzy FMEA approach-based integrated framework for prioritizing the most critical components on the basis of rank of failure causes in a milk process plant. Keywords: analysis; approach; causes; failure; fmea; framework; oil; process; risk; system; table; tau; values
• MODELING AND SIMULATION OF INDUSTRIAL ROBOT ARMS USING SIMSCAPE MULTIBODY by Zhang, Cheng; Li, Songxiao; Zhang, Zhuo (2025) - 20 Error between simulation trajectory and ideal trajectory of robot arm Table 7 Error between simulation trajectory and ideal trajectory of the end execution point of robot arm MBS model Method Maximum Error (mm) Minimum Error (mm) Average Error (mm) Quintic Polynomial Trajectory 3.8730e-09 0 9.0446e-11 B-Spline 2.1104e-09 0 4.4756e-11 Minimum Jerk Polynomial Trajectory 4.4408e-09 0 1.2206e-10 5. CONCLUSION The MBS modeling and Simulation of DOBOT robot arm are carried out by using Simscape Multibody in this paper. The dynamic simulation modeling problem of industrial robot arm is solved, and the trajectory planning dynamic simulation is performed in this paper. Keywords: arm; fig; joint; model; module; robot; robot arm; simulation; system; trajectory
• DISCRETE-TIME MODEL-BASED SLIDING MODE CONTROLLERS FOR TOWER CRANE SYSTEMS by Borlea, Anamaria-Ioana; Precup, Radu-Emil; Roman, Raul-Cristian (2023) - Direct relations that involve controller tuning parameters and control system performance indices with respect to both reference and disturbance inputs will be attempted to be derived in all controller designs. Preitl, Z., Precup, R.-E., Tar, J.K., Takács, M., 2006, Use of multi-parametric quadratic programming in fuzzy control systems, Acta Polytechnica Hungarica, 3(3), pp. 29-43. 28. Keywords: control; control system; dtsmc; law; matrix; mode; parameters; position; step; system; time
• CAD/CAM DESIGN AND GENETIC OPTIMIZATION OF FEEDERS FOR SAND CASTING PROCESS by Dučić, Nedeljko; Ćojbašić, Žarko; Radiša, Radomir; Slavković, Radomir; Milićević, Ivan (2016) - Sutaria et al. (2011) present a new approach to evaluating and optimizing casting feeding system design using feed-paths. Jacob et al. (2004) presented the integration of Genetic Algorithm (GA) and CAD in the design and optimization of feeders in casting process. Keywords: casting; design; feeder; feeding; fig; optimization; process; sand; system; volume
• MULTI-CRITERIA SELECTION OF STANDARDS FOR SYSTEM ANALYST ACTIVITIES IN ORGANIZATIONS by Rakić, Miomir; Žižović, Miodrag M.; Miljković, Boža; Njeguš, Angelina; Žižović, Mališa R.; Đorđević, Igor (2023) - 2 Example of diagram of cost calculation according to IDEF0 standard Given the criteria necessary for multi-criteria analysis [14, 15], the standard fully recognizes the elements related to objects (input, output, and internal), enables the identification of elements that control and manage the process, the structure of the process and description of process activities, participants in the process, and is easy to use. The chapter defines the criteria that cover IT activities for the selection of standards according to selected criteria and defined weight coefficients in the observed company. Keywords: activities; business; criteria; data; decision; flow; method; model; organization; process; selection; standards; system
• OPTIMIZATION BASED DETERMINATION OF THE SET OF CONTINUOUS-STATE COMPONENTS CRITICAL TO THE MECHANICAL SYSTEM STATE by Makajić-Nikolić, Dragana; Stanojević, Milan; Nikolić, Nebojša; Pavlović, Petar (2024) - GI of component j is obtained as: jGI j pl I pl   (6) where jpl is the change in system state caused by the change in jth component state. Wu S., Coolen, F., 2013, A cost-based importance measure for system components: An extension of the Birnbaum importance, European Journal of Operational Research, 225(1), pp. Keywords: components; importance; j j; performance; problem; reliability; set; state; system
• Q-LEARNING, POLICY ITERATION AND ACTOR-CRITIC REINFORCEMENT LEARNING COMBINED WITH METAHEURISTIC ALGORITHMS IN SERVO SYSTEM CONTROL by Zamfirache, Iuliu Alexandru; Precup, Radu-Emil; Petriu, Emil M. (2023) - Tomescu, M.L., Preitl, S., Precup, R.-E., Tar, J.K., 2007, Stability analysis method for fuzzy control systems dedicated controlling nonlinear processes, Acta Polytechnica Hungarica, 4(3), pp. A sample of control system response is illustrated in Fig. Keywords: actor; algorithm; control; critic; fig; gwo; learning; optimization; policy; reinforcement; system
• EXPERIMENTAL DETERMINATION OF DYNAMIC COEFFICIENT OF AMONTON-COULOMB DRY FRICTION by Mirzaev, Ibrakhim; Sagdiev, Khamidulla; Yuvmitov, Anvar; Turdiev, Malikjon; Egamberdiev, Bakhtiyorjon (2024) - The purpose of the study is to experimentally determine the dynamic coefficient of dry friction between different materials under vibrations due to the initial deflection. The principle of dry friction between the grillage and the foundation is used for the seismic isolation of buildings and structures. Keywords: coefficient; friction; plate; shaking; sliding; steel; system; upper
• TRIBOINFORMATICS: MACHINE LEARNING METHODS FOR FRICTIONAL INSTABILITIES by Nosonovsky, Michael; Aglikov, Aleksandr S. (2024) - The most common case of frictional elastic instabilities are the so- called Adams instabilities, which arise during frictional sliding of two elastic half-spaces with different elastic properties (i.e., with the elastic moduli E1 and E2, densities 1 and 2, and Poisson’s ratios 1 and 2) pressed together by a normal force per area, W, applied at infinity (Fig. 2a). Frictional elastic instabilities emerge also during sliding of a periodic wavy elastic surface against a flat elastic half-space Keywords: friction; instabilities; methods; motion; sliding; slip; stability; surface; system
• MULTI-OBJECTIVE OPTIMIZATION RESEARCH ON VR TASK SCENARIO DESIGN BASED ON COGNITIVE LOAD by Fu, Qian-Wen; Liu, Qing-Hua; Hu, Tao (2024) - Currently, there is limited research exploring the optimization of virtual reality design elements in VR scenario contexts based on user cognitive load. Additionally, the impact of multivariate relationships between multi-channel perception and design resource features on cognitive task learning is investigated, aiming to decrease user cognitive load and improve operational efficiency within VR systems. Keywords: data; design; design elements; elements; information; interaction; interface; load; method; objective; optimization; reality; research; scenario; system; task; users; vr system; vr task
• NONLINEAR DYNAMICAL CHARACTERISTICS OF HYBRID TRI-STABLE PIEZOELECTRIC ENERGY HARVESTER BASED ON ROTATIONAL MOTION by Man, Da-Wei; Zhang, Yu; Tang, Li-Ping; Xu, Qing-Hu; Chen, Dong; Jiang, Bang-Dong; Han, Ting-Ting; Xu, Tao; Li, Jin-Bao (2024) - Wang, Y.L., Yang, Z.B., Cao, D.Q., 2021, On the offset distance of rotational piezoelectric energy harvesters, Energy, 220, 119676. 27. Key words: Rotational motion, Piezoelectric energy harvester, Tri-stable, Dynamic amplifier, Steady-state dynamic response Received: January 18, 2024 / Accepted May 22, 2024 Corresponding author: Da-Wei Man School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China E-mail: daweiman@hotmail.com https://orcid.org/0000-0003-3053-2318 https://orcid.org/0009-0006-4473-9183 https://orcid.org/0009-0006-5184-4483 https://orcid.org/0000-0002-8617-8373 https://orcid.org/0009-0002-0221-9383 https://orcid.org/0009-0003-0063-138X https://orcid.org/0009-0008-2379-214X https://orcid.org/0009-0002-8384-1608 https://orcid.org/0009-0009-0251-0665 258 D.-W. MAN, Y. ZHANG, L.-P. TANG, Q.-H. XU, D. CHEN, ET AL. Keywords: energy; harvester; htpeh; motion; output; piezoelectric; radius; speed; system; voltage
• GECKO-INSPIRED FRACTAL BUFFER FOR PASSENGER ELEVATOR by Zuo, Yu-Ting; Luo, Fu-Fang; Zeng, Shi-Long (2024) - [35,36] with hierarchical structure can be applied to the design of fractal buffers. At present, elevator buffers are mainly made of a single material with simple structure, which cannot fully absorb the energy within a short period of time. Keywords: buffer; elevator; energy; fractal; gecko; metamaterials; pad; system
• DYNAMIC VEHICLE ROUTING PROBLEM FOR SMART WASTE COLLECTION by Marković, Danijel; Marković, Saša; Marinković, Dragan; Pamučar, Dragan (2024) - 6 shows the ratio of visits to locations by route, where it is clearly seen how many empty runs of municipal waste collection vehicles there are in the deterministic CVRP model. Consequently, route optimization has been the main motivation for developing smart waste collection systems. Keywords: collection; container; cvrp; management; model; problem; smart; system; transport; vehicle; waste; waste collection
• STABILITY ANALYSIS OF THE SECOND-ORDER DPCM PREDICTION FILTER AND CORRELATION WITH SIGNAL-TO-QUANTIZATION NOISE RATIO by Danković, Nikola; Perić, Zoran; Antić, Dragan; Jocić, Aleksandar; Nikolić, Saša S.; Kocić, Igor (2025) - Remark 1: Other more general forms for the bilinear transformation can be found in the literature, but in its application in the analysis of system stability in the z-domain, the above-mentioned and very similar one z=(s+1)/(s-1) occurs most frequently. A sensitivity analysis for DPCM prediction filter of arbitrary order has been performed yet. Keywords: coefficients; dpcm; filter; order; predictor; probability; stability; system; values
• DYNAMIC STABILITY ANALYSIS OF A COUPLED MOVING BOGIE SYSTEM by Stojanović, Vladimir; Dimitrov, Lubomir; Tomov, Pancho; Li, Deli; Nikolić, Vlastimir (2024) - Building upon the work of Stojanović and Petković [19], which explored the stochastic stability of complex finite beam and beam-foundation systems, this study extends the analysis to a high-order shear deformable model of an infinite beam system subjected to a moving oscillator. The results suggest that further exploration of suspension stiffness variations could offer valuable strategies for improving the stability and performance of complex mechanical systems in real- world applications, particularly in the context of transportation infrastructure. Keywords: beam; case; moving; stability; stiffness; system; ζ1+ζ2; ζ3+ζ4
• ADAPTIVE NEURO-FUZZY COMPUTING TECHNIQUE FOR PRECIPITATION ESTIMATION by Petković, Dalibor; Gocić, Milan; Shamshirband, Shahaboddin (2016) - The paper investigates the accuracy of an adaptive neuro-fuzzy computing technique in precipitation estimation. [9] applied artificial neural network group techniques for precipitation estimation in which average errors for the overall precipitation event fall below 10%. Keywords: anfis; data; estimation; layer; precipitation; serbia; system
• BENDING VIBRATION AND STABILITY OF A MULTIPLE-NANOBEAM SYSTEM INFLUENCED BY TEMPERATURE CHANGE by Karličić, Danilo; Ožvat, Sanja; Cajić, Milan; Kozić, Predrag; Pavlović, Ratko (2016) - [15-17] also known as nonlocal elasticity theory. Murmu, T., Pradhan, S. C., 2009, Thermo-mechanical vibration of a single-walled carbon nanotube embedded in an elastic medium based on nonlocal elasticity theory, Computational Materials Science, 46(4), pp. 854-859. 26. Keywords: buckling; change; frequency; load; system; temperature
• ACTIVE DISTURBANCE REJECTION CONTROL AND MODEL-FREE CONTROL TUNED VIA FICTITIOUS REFERENCE ITERATIVE TUNING by Roman, Raul-Cristian; Precup, Radu-Emil; Petriu, Emil M. (2025) - Precup, R.-E., Roman, R.-C., Teban, T.-A., Albu, A., Petriu, E. M., Pozna, C., 2020, Model-free control of finger dynamics in prosthetic hand myoelectric-based control systems, Studies in Informatics and Control, 29(4), pp. Within contemporary control systems, data-driven algorithms assume an increasingly pivotal role by using empirical data to design controllers with minimal reliance on explicit mathematical models, which is important in coping with Received: Keywords: adrc; algorithm; control; crane; data; disturbance; frit; mfc; model; reference; step; system; time
• FAULT-TOLERANT CONTROL OF LOW-ALTITUDE UNMANNED AERIAL VEHICLE SWARMS USING A REDUCED-ORDER SLIDING MODE OBSERVER by Xu, Li (2025) - [24] established the diagnosis and isolation of UAV swarm faults through multi-sensor fusion and applied a global decision logic, but failed to compensate for the faults. Some transitions are inevitable in the dynamic adjustment of UAV systems, while others are caused by external interference noise. Keywords: actuator; axis; b b; control; fault; system; t t; t z; uav;  
• MU-SYNTHESIS BASED ACTIVE ROBUST VIBRATION CONTROL OF AN MRI INLET by Oveisi, Atta; Nestorović, Tamara (2016) - Roozen, N.B., Koevoets, A.H., den Hamer, A.J., 2008, Active vibration control of gradient coils to reduce acoustic noise of MRI systems, IEEE/ASME Transactions on Mechatronics, 13(3). The problem of structural vibration and acoustic noise in the MRI scanners is an important challenge in the development of the technology in these devices that can be addressed properly by active vibration control and active noise control. Keywords: actuator; control; controller; fig; frequency; mri; noise; order; oveisi; structure; system; vibration
• IMPLANT MATERIAL SELECTION USING EXPERT SYSTEM by Ristić, Miloš; Manić, Miodrag; Mišić, Dragan; Kosanović, Miloš; Mitković, Milorad (2017) - Thus, we develop an expert system which should help or replace humans in the process of Implant material selection. Due to the rule based system and fuzzy logic a framework for fuzzy expert system for implant material selection development was created. Keywords: expert; expert system; feature; feature_has_value; implant; knowledge; material; material selection; model; selection; system
• ENERGY ANALYSIS OF FREE TRANSVERSE VIBRATIONS OF THE VISCO-ELASTICALLY CONNECTED DOUBLE-MEMBRANE SYSTEM by Simonović, Julijana; Karličić, Danilo; Cajić, Milan (2014) - -0.75 ± 4.28i 0 ± 4.17i -0.53 ± 5.87i -0.22 ± 4.27i -0.27 ± 4.16i -0.23 ± 3.06i -0.5 ± 4.25i 0 ± 4.16i -0.75 ± 4.53i 0± 4.16i -0.57 ± 6.02i -0.18 ± 4.34i -0.32 ± 4.26i -0.18 ± 3.16i -0.5 ± 4.43i 0 ± 4.16i -0.27 ± 4.29i -0.1 ± 2.22i -0.28 ± 4.29i -0.09 ± 3.05i 200 λ1,2(1) λ1,2(2) Keywords: energy; membrane; system; t t
• A THEORETICAL-EXPERIMENTAL APPROACH FOR ELASTO-DAMPING PARAMETERS ESTIMATION OF CONE INERTIAL CRUSHER MOUNTING by Mitrev, Rosen; Savov, Simeon (2017) - Blazy P., Zarogatsky L., Jdid E., 1994, Hamdadou M., Vibroinertial comminution — principles and performance, International Journal of Mineral Processing, 41(1-2), pp.33-51. 2. Savov S., 2014, Research of mechanical and technological parameters of cone inertial crushers type KID, Ph.D thesis, Mining and Geology University “St. Ivan Rilski”, Sofia, 221 p. 3. For this purpose, we should obtain theoretical relationships that relate stiffness, geometrical and inertial parameters of the system with natural frequencies that can be easily determined experimentally. Keywords: cone; crusher; frequencies; inertial; parameters; system
• IMPLEMENTATION OF THE LEAN-KAIZEN APPROACH IN FASTENER INDUSTRIES USING THE DATA ENVELOPMENT ANALYSIS by Kumar, Sunil; Dhingra, Ashwani Kumar; Singh, Bhim (2017) - 2 shows efficiency scores of quality system in all selected DMUs before and after Kaizen events implementation. In this research paper, the DEA CCR model with CRS is applied to assess the efficiency of quality system of ten small scale industries manufacturing fasteners (producing the same sort of products) by taking three inputs (manpower (no‟s), maintenance (%), training of employees (hours)) and two outputs (quality (%), on-time delivery (%)) of the quality system. Keywords: analysis; data; dea; dmus; efficiency; implementation; industries; journal; kaizen; model; outputs; quality; system
• SMART EQUIPMENT DESIGN CHALLENGES FOR REAL TIME FEEDBACK SUPPORT IN SPORT by Umek, Anton; Kos, Anton (2018) - The same heterogeneity is expressed in the variety of sensor network technologies; from technologies that cover body area (BAN) to technologies that cover metropolitan area (MAN), from technologies with bitrates of a few kbit/s to technologies of a few hundreds of Mbit/s, from frequencies of 400 MHZ to frequencies of 60 GHz, etc. Mooney, R., Corley, G., Godfrey, A., Quinlan, L.R., ÓLaighin, G., 2015, Inertial sensor technology for elite swimming performance analysis: A systematic review, Sensors, 16(1), 18. 21. Keywords: biofeedback; equipment; feedback; ieee; sensors; sport; system; technologies; time; wireless
• DFCL: DYNAMIC FUZZY LOGIC CONTROLLER FOR INTRUSION DETECTION by Ali, Abdulrahim Haroun; Shamshirband, Shahaboddin; Anuar, Nor Badrul; Petković, Dalibor (2014) - In this method, the resultant membership functions are developed by considering the union of the output of each rule, which means that the overlapping area of fuzzy output set is counted as one, providing more results. The close assent of output values obviously displays that fuzzy logic model can be used to predict output values under consideration Thus, the proposed fuzzy logic model gives a promising solution to predict output value in the specific range of parameter. Keywords: artt; behavior; logic; network; output; packet; ping; pinger; rtt; system; time
• METHOD OF CONVERSION OF HIGH- AND MIDDLE-SPEED DIESEL ENGINES INTO GAS DIESEL ENGINES by Shatrov, Mikhail G.; Sinyavski, Vladimir V.; Dunin, Andrey Yu.; Shishlov, Ivan G.; Vakulenko, Andrey V. (2017) - Less fuel efficiency compared with gas diesel engines is compensated by a NOx much lower price of gas when stationary engines are connected directly to gas pipelines. In gas diesel engines using a traditional (mechanical) gas fuel feed system, substitution of diesel fuel by gas is comparatively low because the share of diesel fuel is 20-30% at full loads, it grows with decrease of load and becomes 100% at idle speed [8]. Keywords: control; diesel; diesel engine; diesel fuel; engine; fuel; gas; gas diesel; pressure; speed; supply; system
• A NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE DYNAMIC STABILITY OF HYDRAULIC EXCAVATORS by Janošević, Dragoslav; Pavlović, Jovan; Jovanović, Vesna; Petrović, Goran (2018) - The paper presents the results of a numerical and experimental analysis of the dynamic stability of hydraulic excavators. Previous research in the area has been related to the development of mathematical models for the analysis of the static stability of hydraulic excavators Keywords: analysis; drive; excavator; fig; hydraulic; member; movement; support; system
• CLOUD-BASED EXPERT SYSTEM FOR SYNTHESIS AND EVOLUTIONARY OPTIMIZATION OF PLANAR LINKAGES by Mitrev, Rosen; Tudjarov, Boris; Todorov, Todor (2018) - When we use Eq. (16), we have in mind that 1 1 1 2 2 2 1 1 1 2 2 2 cos cos sin sin L L L L                J (17) The Jacobian for the considered RRR dyad has the following form: 144 R. MITREV, B. TUDJAROV, T.TODOROV 1 1 2 2 1 1 2 2 sin sin cos cos L L L L             J (11) Keywords: l l; system;  ;  ;  ;  
• METHODS OF THE PATTERN FORMATION IN NUMERICAL MODELING OF BIOLOGICAL PROBLEMS by Filippov, Alexander E.; Gorb, Stanislav N. (2019) - In purely local approximation, the system Eq. (22) can be reduced to the form of ordinary differential equations: 230 A.E. FILIPPOV, S.N. GORB 2 1 1 1 1 1 1 2/ (1 )[ ( , )]t C r t B           (23) 2 1 1 1 2 2 2 1 2 2 2/ (1 )[ ( , )] (0.5 )(1 )t C r t B                 . [ ( , )]t c C r t B               (22) 2 1 2 2 1 1 2 2 2 1 2 2 2/ [ (1 )] Keywords: density; energy; equation; fig; formation; model; pattern; phase; process; structure; surface; system; time
• ROBUST MIXED H2/H8 ACTIVE VIBRATION CONTROLLER IN ATTENUATION OF SMART BEAM by Oveisi, Atta; Nestorović, Tamara (2014) - Since the actuator placement plays an important role in vibration control performance the optimal placement of the actuator is addressed based on the mixed H2 / H method that is described by Nestorović and Trajkov [27]. 3. Carra, S., Amabili, M., Ohayon, R., Hutin, P. M., 2008, Active vibration control of a thin rectangular plate in air or in contact with water in presence of tonal primary disturbance, Aerospace Science and Technology, 12, pp. 54-61. 4. Keywords: beam; control; controller; fig; k k; loop; performance; system; t t; vibration
• RESULTS AND CHALLENGES OF ARTIFICIAL NEURAL NETWORKS USED FOR DECISION-MAKING AND CONTROL IN MEDICAL APPLICATIONS by Albu, Adriana; Precup, Radu-Emil; Teban, Teodor-Adrian (2019) - This paper presents some of the results obtained by the Process Control group of the Politehnica University Timisoara, Romania, in the field of ANNs applied to modeling, prediction and decision-making related to medical systems. Precup, R.-E., Preitl, S., 1997, Popov-type stability analysis method for fuzzy control systems, Proc. Keywords: ann; anns; control; data; decision; diseases; features; fig; input; layer; making; networks; output; patient; precup; r.-e; results; system; training
• DYNAMIC BEHAVIOR OF TWO ELASTICALLY CONNECTED NANOBEAMS UNDER A WHITE NOISE PROCESS by Pavlović, Ivan R.; Pavlović, Ratko; Janevski, Goran; Despenić, Nikola; Pajković, Vladimir (2020) - By means of the Lyapunov exponent and the moment Lyapunov exponent method the stochastic stability of the nano system is analyzed for different system parameters under an axial load modeled as a wideband white noise process. A systematic study of the moment Lyapunov exponents is presented in the works of Xie Keywords: exponent; lyapunov; moment; stability; system
• MECHANICAL STRUCTURE DESIGN TO AVOID FRICTION-INDUCED INSTABILITIES: IN-PLANE ANISOTROPY AND IN-PLANE ASYMMETRY by Nakano, Ken; Kado, Naohiro; Tadokoro, Chiharu; Nagamine, Takuo (2019) - By introducing the minimum modal damping ratio, the degree of stability is quantified and shown as the stability maps, which would be helpful for selecting the two quantities in the mechanical structure design of sliding systems. [1] (e.g., the frictional force of lubricated sliding systems operating under mixed lubrication conditions). Keywords: plane; sliding; system
• CFD MODELLING OF FORMULA STUDENT CAR INTAKE SYSTEM by Mohamad, Barhm; Karoly, Jalics; Zelentsov, Andrei (2020) - [1] showed the effect of different air inlet restrictors on engine performance of Formula Student car engine using AVL BOOST numerical simulation model and the research was carried out on restrictor diameters, which varied from 15 mm to 60 mm. 7. Winterbone, E., Pearson, R., Horlock, J., 2000, Theory of engine manifold design: wave action methods for IC engines, Professional Engineering Publ. Keywords: air; car; cfd; design; engine; fig; formula; intake; model; plenum; pressure; system
• FUZZY CONTROLLER FOR THE CONTROL OF THE MOBILE PLATFORM OF THE CORBYS ROBOTIC GAIT REHABILITATION SYSTEM by Kyrarini, Maria; Slavnić, Siniša; Ristić-Durrant, Danijela (2014) - Due to the lack of information on the steering motors and load characteristics, a fuzzy logic controller is designed and implemented for the steering angle position control of each wheel of CORBYS mobile platform. Namely, since the driving DC motors are able to drive in 2 directions only - forward and backwards, the value of steering angle is limited to [-90°, 90°]. Keywords: angle; control; corbys; fig; mobile; platform; steering; system; wheel
• FOREWORD by Hess, Markus; Pohrt, Roman; Starcevic, Jasminka (2019) - And perhaps most admirable in this story is the courage and hope that Prof. Valentin L. Popov has shown to pursue his own idea in spite of the critique it has received from fellow scholars. Indeed, Valentin Popov has always been and continues to be successful in tying international bonds due to his supportive and generous character. Keywords: colleagues; popov; prof; research; system; valentin
• SITUATION ASSESSMENT THROUGH MULTI-MODAL SENSING OF DYNAMIC ENVIRONMENTS TO SUPPORT COGNITIVE ROBOT CONTROL by Badii, Atta; Khan, Ali; Raval, Rajkumar; Oudi, Hamid; Ayora, Ricardo; Khan, Wasiq; Jaidi, Amine; Viswanathan, Nagarajan (2014) - In this paper, we report a novel generic Situation Assessment Architecture for robotic systems directly assisting humans as developed in the CORBYS project. An innovative generic Situation Assessment Architecture for robotic systems has Received October 23, 2014 / Accepted November 25, 2014 Keywords: architecture; assessment; context; corbys; data; demonstrator; environment; gait; robot; situation; system
• FUZZY MODEL OF THE OPERATIONAL POTENTIAL CONSUMPTION PROCESS OF A COMPLEX TECHNICAL SYSTEM by Pająk, Michał (2020) - In Chapter 2 the main idea of fuzzy model application is presented. where: FMRi - i-th inference rule of the fuzzy model, AGR(FMRi) - the value after premises aggregation of i-th inference rule, yi(iout) - the value of the membership function of the linguistic value on position iout for fuzzy value of the output parameter of i-th rule, nvl - the amount of the linguistic values defined for the parameters of the model. Keywords: change; consumption; deviation; features; input; model; operation; output; parameter; potential; process; state; system; time; value; working
• DESIGN AND CALIBRATION OF THE SYSTEM SUPERVISING BELT TENSION AND WEAR IN AN INDUSTRIAL FEEDER by Ryba, Tomasz; Rucki, Miroslaw; Siemiatkowski, Zbigniew; Bzinkowski, Damian; Solecki, Michal (2022) - The designed system is based on strain gauges that are built into the roller and are subject to the belt pressure at each revolution. Application of strain gauges directly on the roller made it possible to obtain data concerning the belt conditions during its work. Keywords: belt; calibration; fig; gauge; measurement; strain; system; tension; uncertainty
• A STRUCTURED FRAMEWORK FOR RELIABILITY AND RISK EVALUATION IN THE MILK PROCESS INDUSTRY UNDER FUZZY ENVIRONMENT by Gopal, Nand; Panchal, Dilbagh (2021) - Result discussion From Table 14, it has been found that with the application of FCOPRAS & FTOPSIS approaches failure causes MSCP5, MBFP3, H4, CTK4, PFM11, and CFM7 associated with different subsystem/components of the considered curd unit with outputs 100,100, 100,100,100 and 100 & 0.8336,0.9537,0.9820, 0.7179, 0.9094 and 0.9207 are prioritized as 330 N. GOPAL, D. PANCHAL most critical failure causes; responsible for decrease in system’s availability. Panchal, D., Jamwal, U., Srivastava, P., Kamboj, K., Sharma, R., 2018, Fuzzy methodology application for failure analysis of transmission system, International Journal of Mathematics in Operational Research, 12(2), pp. 220-237. 31. Keywords: analysis; approach; causes; decision; failure; framework; fuzzy; matrix; milk; process; reliability; results; risk; set; system; table;  ;  
• EVALUATION OF LOGISTIC FLOWS IN GREEN SUPPLY CHAINS BASED ON THE COMBINED DEMATEL-ANP METHOD by Osintsev, Nikita; Rakhmangulov, Aleksandr; Baginova, Vera (2021) - 486 N. OSINTSEV, A. RAKHMANGULOV, V. BAGINOVA Justification of the logistics flows parameters and indicators in green supply chains Phase 1 Justification of parameters and indicators Using DEMATEL to analyze relationships between logistics flows parameters Phase 2 DEMATEL Phase 3 ANP Using ANP to rank logistics flow indicators in green supply chains 2.1 Initial direct relation matrix of the logistics flows parameters and indicators 2.2 Normalize the initial influence matrix 2.3 Compute total influence matrix 2.4 Calculation of the strength of the relationship and influence between the logistics flows parameters and indicators 2.5 Obtaining the causal diagram Academic experience Green programs, strategies, and projects Best green practices Literature review Using DEMATEL to analyze relationships between logistics flows indicators 3.1 Formation of a logistic flow evaluation system (LFES) 3.2 Construct pairwise comparison matrices of the logistics flows parameters and indicators 3.3 Supermatrix formation 3.4 Limit supermatrix formation 3.5 Calculation of the weight of the logistics flows indicators Weights of the logistics flows indicators in green supply chains Fig. [99] Analysis of consumer demand when choosing a supplier in green supply chains [105] Assessment of sustainable development of small and medium-sized enterprises [106] The main identified disadvantages of using the DEMATEL and ANP methods in the GSCM are: ▪ the generally accepted universal system of parameters and indicators of logistics flows has not been developed, ▪ the methods of complex evaluation of the set of logistics flows indicators are underdeveloped, ▪ the relationship of indicators and parameters of logistics flows from the standpoint of the concept of sustainable development is insufficiently studied, ▪ the evaluation of logistics flows is considered in relation to specific (isolated) elements of the GSCM, ▪ the evaluation of all logistics flows in GSCM to achieve sustainable development goals is carried out insufficiently comprehensively and systematically. Keywords: anp; chain; coefficient; criteria; dematel; development; evaluation; flows; gscm; i1 0; indicators; influence; journal; logistics; logistics flows; management; method; model; parameters; supply; system
• IDENTIFICATION OF CHATTER VIBRATIONS AND ACTIVE VIBRATION CONTROL BY USING THE SLIDING MODE CONTROLLER ON DRY TURNING OF TITANIUM ALLOY (TI6AL4V) by Guvenc, Mehmet Ali; Bilgic, Hasan Huseyin; Mistikoglu, Selcuk (2023) - Zaeh, M.F., Kleinwort, R., Fagerer, P., Altintas Y., 2017, Automatic tuning of active vibration control systems using inertial actuators, CIRP Annals - Manufacturing Technology, 66, pp. Magnetorheological (MR) and Electro-rheological (ER) fluids are among the systems commonly used in active vibration control applications. Keywords: applications; chatter; control; cutting; data; fig; machining; system; tool; turning; vibration; vibration control
• DETECTION AND HANDLING EXCEPTIONS IN BUSINESS PROCESS MANAGEMENT SYSTEMS USING ACTIVE SEMANTIC MODEL by Mišić, Dragan; Stojković, Miloš; Trifunović, Milan; Vitković, Nikola (2022) - Research shows that the management of process exceptions requires a lot of resources, it costs a lot [2], its success is critical In [16], the ontologies help define advice for users when creating new processes. Keywords: activity; asm; concept; context; exceptions; fig; handling; model; new; process; scaffold; system
• PRECEDENT-FREE FAULT LOCALIZATION AND DIAGNOSIS FOR HIGH SPEED TRAIN DRIVE SYSTEMS by Ul Haq, Asad; Djurdjanović, Dragan (2015) - Unfortunately, monitoring systems based on the classical framework are restricted in their diagnostic abilities, due to their reliance on fault models for these tasks. The entire process is based solely on models of normal behavior, thereby bypassing the need for fault models, which, as previously mentioned, is a major constraining factor in the applicability of traditional diagnostic methods. Keywords: anomaly; behavior; detection; fault; localization; models; speed; subsystems; system; train
• APPLICATION OF SMART MOBILE PHONES IN VIBRATION MONITORING by Vračar, Ljubomir; Milovančević, Miloš; Karanikić, Petra (2015) - There is a great variety of different vibration sensors which are used for achieving results as accurate as possible. The purpose of the research presented in this paper is the development of the smart mobile phone application for vibration monitoring of pumping aggregate, based on Microchip’s microcontroller (MC). Keywords: acceleration; condition; fig; frequency; machines; measuring; monitoring; pump; sensor; system; vibration
• SPLITTING THE TOTAL EXERGY DESTRUCTION INTO THE ENDOGENOUS AND EXOGENOUS PARTS OF THE THERMAL PROCESSES IN A REAL INDUSTRIAL PLANT by Vučković, Goran; Vukić, Mića; Stojiljković, Mirko; Simonović, Miloš (2016) - The total exergy destruction occurring in a component is not only due to the component itself (endogenous exergy destruction) but is also caused by the inefficiencies of the remaining system components (exogenous exergy destruction). A part of the exergy destruction within a system component is generally caused by the inefficiencies of the remaining system components (exogenous exergy destruction). Keywords: component; destruction; exergy; exergy destruction; steam; system; water

• ISOGEOMETRIC STRUCTURAL ANALYSIS BASED ON NURBS SHAPE FUNCTIONS by Milić, Predrag; Marinković, Dragan (2014) - The geometric models and, consequently, the FEM models, differ in the degree of NURBS basic functions and definitions of knot vec- tors. The algorithm of the isogeometric analysis using NURBS shape functions For the example discussed in this paper, the assumption of linearly elastic, homogene- ous, isotropic material has been adopted. Keywords: analysis; element; fem; fig; functions; geometry; model; nurbs
• LOAD PATH VISUALIZATION USING U* INDEX AND PRINCIPAL LOAD PATH DETERMINATION IN THIN-WALLED STRUCTURES by Zhao, Shengjie; Mao, Luyue; Wu, Nan; Karnaoukh, Sviatoslaw (2025) - This section introduces a visualization methodology for U* load paths by using the streamline approach. A new concept of principal load path is also introduced by evaluating the importance of load paths using statistical means. Keywords: analysis; design; fig; index; load; load path; path; principal; structure; visualization
• EFFECT OF STATIC AND HARMONIC LOADING ON THE HONEYCOMB SANDWICH BEAM BY USING FINITE ELEMENT METHOD by Safaei, Babak; Chukwueloka Onyibo, Emmanuel; Hurdoganoglu, Dogus (2022) - Stress comparison of sandwich cores materials, aluminum, SAN foam and honeycomb of the same parameter effect of the applied load on the hexagonal shaped core. 10 Comparison of sandwich core deformation of hexagonal honeycomb core 294 B. SAFAEI, E. CHUKWUELOKA ONYIBO, D. HURDOGANOGLU Table 4 shows FEM and analytical results of the rate of change in length of the sandwich beam when load of 100 N is applied. Keywords: analysis; core; core sandwich; fig; frequency; hexagonal; honeycomb; honeycomb core; honeycomb sandwich; materials; model; sandwich; sandwich beam; sandwich structure; stress; structure
• RISK PRIORITY EVALUATION OF POWER TRANSFORMER PARTS BASED ON HYBRID FMEA FRAMEWORK UNDER HESITANT FUZZY ENVIRONMENT by Zhou, Bin; Chen, Jing; Wu, Qun; Pamučar, Dragan; Wang, Weizhong; Zhou, Ligang (2022) - Even though the FSs have numerous domains to FMEA problems, few studies paid attention to the HFSs for FMEA risk evaluation. In this framework, the hesitant fuzzy sets (HFSs) are used to depict the uncertainty in risk evaluation. Keywords: analysis; experts; fmea; framework; fuzzy; hfss; information; method; model; objective; power; risk; risk evaluation; risk fmea; risk indicators; risk priority; transformer; weights
• THERMAL BUCKLING AND BENDING ANALYSES OF CARBON FOAM BEAMS SANDWICHED BY COMPOSITE FACES UNDER AXIAL COMPRESSION by Safaei, Babak; Chukwueloka Onyibo, Emmanuel; Hurdoganoglu, Dogus (2022) - In a connected linear buckling analysis of sandwich beams, the load factor on the static load causing buckling was assessed, the critical buckling load and bending behavior of carbon fiber strut imbedded in sandwich core was determined. Also, Fig. 9(b) shows deformation on sandwich core while Fig. 9(c) depicts the bottom skin deformation where both the stress and deformation are at minimum. Keywords: aerogel; analysis; bending; buckling; carbon; composite; core; deformation; fiber; fig; heat; safaei; sandwich; sandwich beam; structures; temperature
• SOFTWARE TESTING OF THE RAIL VEHICLE DYNAMIC CHARACTERISTICS by Troha, Sanjin; Milovančević, Miloš; Kuchak, Alireza (2015) - Quality of rail road greatly affects the quality of the movement of rail vehicles. Testing of the vertical acceleration Vertical acceleration significantly affects the stability and tranquility of rail vehicle. Keywords: acceleration; analysis; fig; frequency; linear; rail; vehicle
• NON-LINEAR MATHEMATICAL MODELS IN THE THEORY OF EXPERIMENTAL DESIGN: APPLICATION IN THE MANUFACTURING PROCESSES by Lazarević, Anđela; Lazarević, Dragoljub (2015) - Although non-linear mathematical models without factors’ interactions show lower accuracy in the points of experiment than expanded mathematical models, the mean error of both models within the entire experimental space is practically identical. experiment 6.48 1.32 6.48 1.32 3. CONCLUSIONS This paper presents the application of non-linear mathematical models for different technological process modelling. Keywords: analysis; cutting; design; experiment; factors; interactions; linear; model
• ANALYSIS OF THE RESULTS OF THEORETICAL AND EXPERIMENTAL STUDIES OF FREIGHT WAGON FALS by Slavchev, Svetoslav; Georgieva, Kalina; Stoilov, Valeri; Purgić, Sanel (2015) - The first model was built up of finite elements type “Solid” and the second of “Shell” finite elements. All theoretically required ratios between the parameters of finite elements that allow modeling of the structure of the body with 3D solids were fulfilled. Keywords: analysis; elements; finite; shell; wagon
• NUMERICAL STUDY AND DESIGN OPTIMIZATION ON ENERGY ABSORPTION OF THIN-WALLED TUBE WITH A YOSHIMURA PATTERN by Fang, Yudong; Han, Weijian; Zhan, Zhenfei; Huang, Li (2024) - The paper also highlights multi-objective optimization for origami tubes with a Yoshimura pattern. Gaining insightful understanding of the effects of structural parameters on the performance of an origami tube is helpful in designing desired origami tubes with suitable layouts of origami patterns and appropriate parameters. Keywords: absorption; analysis; crushing; energy; energy absorption; fig; force; optimization; origami; origami tube; structures; tube
• ROUGH MULTI- PERIOD NETWORK DATA ENVELOPMENT ANALYSIS FOR EVALUATION OF SUPPLY CHAIN: A CASE STUDY OF SKILL TRAINING IN IRAN by Ebadi, Sepideh; Tajdin, Ali; Mahdavi, Iraj; Fazlollahtabar, Hamed (2024) - Li, Y., Abtahi, A.R., Seyedan, M., 2018, Supply chain performance evaluation using fuzzy network data envelopment analysis: a case study in automotive industry, Annals of Operations Research, 275(2), pp. 461-484. Rostamy-Malkhalifeh, M., Mollaeian, E., 2012, Evaluating performance supply chain by a new non-radial network DEA model with fuzzy data, Journal of Data Envelopment Analysis and Decision, pp. 1-9. 9. Keywords: analysis; chain; data; efficiency; envelopment; evaluation; model; network; performance; supply
• FRACTAL SPACE BASED DIMENSIONLESS ANALYSIS OF THE SURFACE SETTLEMENT INDUCED BY THE SHIELD TUNNELING by Mei, Yuan; Tian, Xinyu; Li, Xuejuan; Gepreel, Khaled (2023) - [T]: 1 2 3 5 6 7 1 3 5 7 8 112 2 2 2 2 2 2 2 2 0a a a a a a b b b b b b− − − − − − − − − − − − = (6) Lesur, G., Longaretti, P.Y., 2007, Impact of dimensionless numbers on the efficiency of magnetorotational instability induced turbulent transport, Monthly Notices of the Royal Notices of the Royal Astronomical Society, 378(4), pp. 1471-1480. 52. Keywords: analysis; b b; dimensionless; engineering; number; process; settlement; shield; surface; tunneling; − −
• GEOMETRICALLY NONLINEAR ANALYSIS OF PIEZOELECTRIC ACTIVE LAMINATED SHELLS BY MEANS OF ISOGEOMETRIC FE FORMULATION by Milić, Predrag; Marinković, Dragan; Ćojbašić, Žarko (2025) - Nestorović, T., Marinković, D., Chandrashekar, G., Marinković, Z., Trajkov, M., 2012, Implementation of a user defined piezoelectric shell element for analysis of active structures, Finite Elements in Analysis and Design, 52, pp. 11-22. Rama, G., Marinković, D., Zehn, M., 2018, Efficient three-node finite shell element for linear and geometrically nonlinear analyses of piezoelectric laminated structures, Journal of Intelligent Material Systems and Structures, 29(3), pp, 345-357. 10. Keywords: analysis; k k; nonlinear; piezoelectric; structures; t t
• A SPHERICAL FUZZY BASED DECISION MAKING FRAMEWORK WITH EINSTEIN AGGREGATION FOR COMPARING PREPAREDNESS OF SMEs IN QUALITY 4.0 by Biswas, Sanjib; Božanić, Darko; Pamučar, Dragan; Marinković, Dragan (2023) - Shuaib, K.M., He, Z., 2021, Impact of organizational culture on quality management and innovation practices among manufacturing SMEs in Nigeria, Quality Management Journal, 28(2), pp.   = − − − − − −    w w w wwS      (5) Power of SFN Let w > 0 denotes the power of S wherein w is a scalar quantity. Keywords: analysis; criteria; decision; framework; fuzzy; k k; management; matrix; quality; smes; table
• A HYBRID DEEP LEARNING APPROACH FOR SENTIMENT ANALYSIS IN PRODUCT REVIEWS by Kuang, Minghui; Safa, Ramin; Edalatpanah, Seyyed Ahmad; Keyser, Robert S. (2023) - Prusa, J., Khoshgoftaar, T.M., Dittman, D.J., Napolitano, A., 2015, Using random undersampling to alleviate class imbalance on tweet sentiment data, In 2015 IEEE International Conference on Information Reuse And Integration, pp. 197-202, San Francisco, CA, USA, IEEE. In this study, we propose a novel hybrid approach based on deep neural networks (DNNs) for sentiment analysis in product reviews, focusing on the classification of sentiments expressed. Keywords: algorithm; analysis; approach; attention; classification; data; dataset; facebook; marketing; media; product; rnn; samples; sentiment; sentiment analysis; text; words
• NEW APPROACH TO EXPERIMENTAL DETERMINATION OF ROTATIONAL PIVOT BEHAVIOUR BY PHOTOGRAMMETRIC MEASUREMENT by Marković, Kristina; Dundović, Maja; Vrcan, Željko (2024) - Key words: Compliant mechanism, Parasitic shift, Photogrammetry, DIC, Feature detection Received: February 08, 2024 / Accepted May 14, 2024 Corresponding author: Željko Vrcan University of Rijeka, Faculty of Engineering, Vukovarska 58, HR-51000 Rijeka, Croatia E-mail: zeljko.vrcan@riteh.uniri.hr 2 K. MARKOVIĆ, M. DUNDOVIĆ, Ž. VRCAN 1. INTRODUCTION The development and availability of innovative technologies present a constant challenge to design engineers to develop new and innovative machine concepts that will keep them competitive and successful in the targeted market. Compliant mechanisms are mechanical assemblies that transmit motion, power or force without friction, wear, and backlash with excellent fatigue resistance. Keywords: analysis; behaviour; calibration; fig; image; manufacturing; measurement; mechanism; pivot; precision; results; spring
• SELECTION OF DATA CONVERSION TECHNIQUE VIA SENSITIVITY-PERFORMANCE MATCHING: RANKING OF SMALL E-VANS WITH PROBID METHOD by Stević, Željko; Baydaş, Mahmut; Kavacık, Mustafa; Ayhan, Emrah; Marinković, Dragan (2024) - In other words, normalization or weighted method sensitivity is decisive. Sensitivity analyses are frequently performed to determine the robustness of MCDM methods, of which there are more than 200 types. Keywords: alternative; analysis; change; criteria; data; decision; electric; mcdm; method; normalization; performance; price; probid; ranking; relationship; results; selection; sensitivity; sensitivity analysis; study; technique; transportation; vehicles; weight
• A NEW FRAMEWORK FOR RISK ASSESSMENT OF ROAD TRANSPORTATION OF HAZARDOUS SUBSTANCES by Vahabzadeh, Sahand; Haghshenas, Sina S.; Ghoushchi, Saeid J.; Guido, Giuseppe; Simic, Vladimir; Marinkovic, Dragan (2025) - [49] proposed the integrated quality function deployment and multicriteria decision- making (QFD-MCDM) framework for selecting the key drivers to I5.0 in order to enhance supply chain resilience while concurrently handling hazardous material transportation risk. Each method adds something different, which indicates that a comprehensive assessment framework is vital when taking into consideration the complex nature of hazardous material transportation risks. Keywords: analysis; approach; assessment; criteria; decision; framework; mabac; making; materials; method; number; risk; road; s. s.; study; swara; table; transportation
• MAKING MORE INFORMED DECISIONS IN MULTI-CRITERIA PROBLEMS UNDER UNCERTAIN CONDITIONS OF CRITERIA WEIGHTS: DRONE SELECTION STUDY CASE by Więckowski, Jakub; Sałabun, Wojciech (2025) - Chen, N., Xu, Z., 2015, Hesitant fuzzy ELECTRE II approach: a new way to handle multi-criteria decision making problems, Information Sciences, 292, pp. 175-197. 24. Ozcalici, M., 2022, Asset allocation with multi-criteria decision making techniques, Decision Making: Applications in Management and Engineering, 5(2), pp. Keywords: analysis; approach; criteria; criteria decision; decision; making; methods; problems; ranking; scenarios; weights
• ENHANCING SUPPORT VECTOR MACHINE PERFORMANCE IN FORECASTING THE NUMBER OF VEHICLES INVOLVED IN TRAFFIC CRASHES VIA METAHEURISTIC OPTIMIZATION ALGORITHMS by Haghshenas, Sina S.; Seraji, Mohammad Hassan M.; Haghshenas, Sami S.; Guido, Giuseppe; Astarita, Vittorio; Simic, Vladimir; Marinkovic, Dragan (2025) - Models 8 and 9, which come after model number 6, have a total 20 S. S. HAGHSHENAS, M. H. M. SERAJI, S. S. HAGHSHENAS, ET AL. rank of 29, making it the second highest. Future studies may investigate the implications of emerging trends faced by accident prediction models with respect to electric scooters and autonomous vehicles. Keywords: accidents; accuracy; analysis; data; haghshenas; machine; model; number; optimization; performance; prediction; road; s. s.; safety; svm; testing; traffic; training; vehicles
• A NOVEL APPROACH TO PREDICTING THE CUTTING FORCE IN TURNING USING DIMENSIONAL ANALYSIS by Stanojković, Jelena; Madić, Miloš; Trifunović, Milan; Janković, Predrag; Petković, Dušan (2025) - It can be observed from the literature review that the researchers used different methods to derive cutting force prediction models. Cutting forces are a critical indicator of the machining process, and their modeling is important for a variety of reasons, including tool life assessment, chatter prediction, tool condition monitoring, assessment of machining strategies and machining process optimization and control. Keywords: 20mncrs5; analysis; chip; cutting force; feed; materials; model; parameters; process; steel; tool; turning; values
• QUANTITATIVE ANALYSIS AND OPTIMIZATION OF ENERGY EFFICIENCY IN ELECTRIC MULTIPLE UNITS by Fischer, Szabolcs; Hermán, Bence; Sysyn, Mykola; Kurhan, Dmytro; Kocsis Szürke, Szabolcs (2025) - 4 shows energy consumption data (in kWh dimension) assigned to different routes, broken down by month, from January to May. Kierzkowski, A., Haładyn, S., 2022, Method for reconfiguring train schedules taking into account the global reduction of railway energy consumption, Energies 2022, 15(5), 1946. 46. Keywords: analysis; consumption; data; distance; efficiency; electric; energy; energy consumption; energy efficiency; fig; points; railway; route; section; traction; train; transportation; values
• A DATA-MINING BASED METHOD FOR THE GAIT PATTERN ANALYSIS by Rudek, Marcelo; Silva, Nicoli Mariá; Steinmetz, Jean-Paul; Jahnen, Andreas (2015) - Data mining procedure As described by Mirkovic in [25], data mining is a practical procedure based on clustering and it is widely applied to group selection. Larose, D. T., 2014, Discovering knowledge in data: an introduction to data mining. Keywords: analysis; classification; cop; data; fig; foot; gait; mining; patient; pattern; walking
• APPLICATION OF THE CRAIG-BAMPTON MODEL ORDER REDUCTION METHOD TO A COMPOSITE STRUCTURE: MAC AND XOR by Peredo Fuentes, Humberto; Zehn, Manfred (2014) - INTRODUCTION Many techniques have been proposed to obtain reduced order finite element models (known as model order reduction (MOR) methods) by reducing the order of mass and stiffness matrices of structures made of conventional materials 6 Cross orthogonality MAC (XOR): higher frequencies  reduced vs. full model 46 H. PEREDO FUENTES, M. ZEHN Fig. 7 FRF(blue) and fitting curve (green) of composite model at node 183y 8. Keywords: analysis; craig; fig; frequency; mac; matrix; method; model; order; reduced; results; stiffness; structure
• A 3-NODE PIEZOELECTRIC SHELL ELEMENT FOR LINEAR AND GEOMETRICALLY NONLINEAR DYNAMIC ANALYSIS OF SMART STRUCTURES by Rama, Gil (2017) - All of them were also used in the development of piezoelectric shell elements. The next example illustrates the influence of geometrically nonlinear effects on the dynamic sensor response when piezoelectric plate structures are considered. Keywords: analysis; element; fig; nonlinear; piezoelectric; plate; sensor; shell; structures
• MULTILAYERED PLATE ELEMENTS WITH NODE-DEPENDENT KINEMATICS FOR THE ANALYSIS OF COMPOSITE AND SANDWICH STRUCTURES by Valvano, Stefano; Carrera, Erasmo (2017) - On the other hand, plate models with Layer-Wise (LW) capabilities can be implemented by describing the displacement components at the layer level, possibly by using a combination of Lagrange and Legendre-like polynomial as Fs thickness functions Single theory LW models show a good accuracy solution independently of the polynomial order, otherwise higher-order mono-model ESL theories with Taylor polynomial, ET3 and ET4, are required to obtain sufficient solution accuracy. Keywords: analysis; case; composite; element; fig; models; multi; node; order; plate; stress; theories; theory; transverse
• AN AUTOMATIZED IN-PLACE ANALYSIS OF A HEAVY LIFT JACK-UP VESSEL UNDER SURVIVAL CONDITIONS by Rama, Gil (2014) - As a result of detailed determination of dynamic loads and consideration of soil properties by spring elements, the used capacities are able to be reduced by 28 %. Random wave time domain dynamic analysis (detailed method) The SDOF analogy is permissible for factored (see Eq. 12) values of 1 > fac > 0.5. Keywords: analysis; conditions; fig; hljv; inertia; jack; loads; model; structure; thor; wave; wind
• NOISE CONTROL OF VEHICLE DRIVE SYSTEMS by Gabbert, Ulrich; Duvigneau, Fabian; Ringwelski, Stefan (2017) - These data from listening tests are used to create a psychoacoustic mathematical model which shows the highest correlation with the subjective evaluation of engine sounds. Then, it is applied to combustion engines, where several simulation results are presented to underline the complexity but also to demonstrate the advantages of the developed simulation approach. Keywords: analysis; approach; control; engine; fig; gabbert; model; noise; pressure; simulation; sound; vibration
• A REAL TIME NEURAL NETWORK BASED FINITE ELEMENT ANALYSIS OF SHELL STRUCTURE by Ćojbašić, Žarko; Nikolić, Vlastimir; Petrović, Emina; Pavlović, Vukašin; Tomić, Miša; Pavlović, Ivan; Ćirić, Ivan (2014) - Bucalem, M.L., Bathe, K.J., 1997, Finite Element Analysis of Shell Structures, Archives of Computational Methods in Engineering, 4(1), pp. 3-61. 4. Javadi, A.A., Tan, T.P., Zhang, M., 2003, Neural network for constitutive modeling in finite element analysis, Computer assisted Mechanics and Engineering Sciences, 10, pp. 523-529. In this paper, we present an efficient method based on neural networks for simulating the real-time behavior of a thin walled structure modeled by the finite element method in the commercial FE software. Keywords: analysis; element; finite; method; network; shell; structure; time
• A STUDY OF THE ENVIRONMENTAL KUZNETS CURVE FOR TRANSPORT GREENHOUSE GAS EMISSIONS IN THE EUROPEAN UNION by Petrović, Nikola; Bojović, Nebojša; Petrović, Marijana; Jovanović, Vesna (2020) - Predictors: (Constant), service, GDP per capita c. Dependent Variable: transport GHG emissions Based on the results of the regression analysis given in Table 5 (prepared by the authors - SPSS Statistics 19.0) it can be seen that the coefficient of determination is 0.906 if we consider the impact of GDP per capita as well as the shares of industry and of service in GDP on transport GHG emissions; but if we consider only the impact of GDP per capita and share of service in GDP on transport GHG emission the coefficient of determination is 0.897. Bearing in mind that the industrial development in its early stages contributed to an increased environmental degradation as well as that the literature has not paid much attention so far to the analysis of the quantification of the industrial development effect, along with the service sector development influence on transport GHG emissions, the paper draws particular attention to the influence of the industrial share in the gross domestic product (GDP) and the effects of the service sector in GDP on GHG emissions. Keywords: analysis; capita; cluster; correlation; countries; gdp; ghg emissions; industry; service; transport ghg
• INFLUENCE OF THE CHANGING LOCAL CLIMATE ON WIND POTENTIALS OF MOUNT KOPAONIK by Živković, Predrag; Tomić, Mladen; Dimitrijević, Dragana; Kecman, Ivana; Dobrnjac, Mirko (2017) - In that sense, wind energy clearly takes a prominent place considering its large potentials, purity and availability. Renewable energy, including wind energy, is not an exception. Keywords: analysis; data; energy; kopaonik; model; potentials; serbia; wind
• ADVANCED MORPHOLOGICAL APPROACH IN AEROSPACE DESIGN DURING CONCEPTUAL STAGE by Bardenhagen, Andreas; Rakov, Dmitry (2019) - Table 2 Morphological matrix with possible 4S system variants attribute (descriptors) Milčić, D., Miltenović, V., 1999, Application of artificial intelligence methods in gear transmitters conceptual design, Facta Universitatis-Series Mechanical Engineering, 1(6), pp.721-734. 3. Polovinkin, A., 1991, Design theory of new engineering solutions: technology patterns and their applications. Keywords: analysis; approach; design; engineering; fig; rakov; solutions; synthesis; systems; uas; variants
• EXPERIMENTAL INVESTIGATION OF THE INFLUENCE OF TRAIN VELOCITY AND TRAVEL DIRECTION ON THE DYNAMIC BEHAVIOR OF STIFF COMMON CROSSINGS by Kovalchuk, Vitalii; Sysyn, Mykola; Gerber, Ulf; Nabochenko, Olga; Zarour, Jandab; Dehne, Stefan (2019) - Common crossing rails are subjected to a rapid deterioration of the rolling surface due to a dynamic loading of trains. Common crossing rails are the most short-living elements of S&C with lifecycle up to 5 times shorter than that of the ordinary track rails. Keywords: analysis; crossing; direction; displacement; fig; frog; rail; strain; trailing; travel; velocity; wheel
• EXPERIMENTAL ANALYSIS AND OPTIMIZATION OF THE CONTROLLABLE PARAMETERS IN TURNING OF EN AW-2011 ALLOY; DRY MACHINING AND ALTERNATIVE COOLING TECHNIQUES by Jozić, Sonja; Dumanić, Ivana; Bajić, Dražen (2020) - Tripathy, S., Tripathy, D.K., 2017, Multi-response optimization of machining process parameters for powder mixed electro-discharge machining of H-11 die steel using grey relational analysis and topsis. As noted earlier, the objective of this study is to research the effects of cutting environments (dry machining, MQL, MQL + CCA) on surface roughness, cutting force component in the Z direction and on the material removal rate in the longitudinal turning at varying cutting parameters (cutting speed, feed rate, depth of cut). Keywords: analysis; cooling; cutting; force; grey; machining; mql; mql+cca; parameters; process; rate; roughness; surface; turning
• BERGSTRÖM-BOYCE VS. HYPERELASTIC RUBBER MODELS IN STRUCTURAL ANALYSIS OF TIRES by Korunović, Nikola; Banić, Milan; Trifunović, Milan; Pavlović, Ana (2021) - Material models considered in curve fitting were: ▪ Yeoh (Y) Significant differences in the results obtained by various models were demonstrated, especially at higher strain rates when the contribution of viscoelastic part of material models was the greatest. Keywords: analysis; boyce; material; models; rubber; tire
• EVALUATION OF IRANIAN SMALL AND MEDIUM-SIZED INDUSTRIES USING THE DEA BASED ON ADDITIVE RATIO MODEL – A REVIEW by Hassanpour, Malek (2020) - IRANIAN INDUSTRIES By the present review, 9 groups (including 405 industries) of Iranian industries passed through the DEA-ARAS model to classify the industries based on materials and energy streams such as Iranian Wood and Cellulose Industries (IWCI; 16 various types), Iranian Textile and Leather Industries (ITLI; 38 various types), Iranian Mining and Aggregate Industries (IMAI; 26 various types), Iranian Food Industries (IFI; 57 various types), Iranian Automotive Industries (IAI; 71 various types), Iranian Plastic Industries (IPI; 21 various types), Iranian Electronic Products Manufacturing Industries (IEPMI; 33 various types), Iranian Chemical Industries (ICI; 118 various types) and Iranian Household Appliance Industries (IHAI; 25 various types). A study examined the efficiency evaluation using DEA model supplemented by AHP about inputs and outputs criteria such as distance from Co2 source, minimum flow rate requirement (input), injectivity limit, operating life, product yield, product value, sequestration parameter, reservoir capacity, well security and structural integrity (outputs) Keywords: analysis; criteria; data; dea; dea model; efficiency; envelopment; evaluation; industries; inputs; iranian; journal; method; model; outputs; performance; research; values
• AN INTEGRATED SWOT – FUZZY PIPRECIA MODEL FOR ANALYSIS OF COMPETITIVENESS IN ORDER TO IMPROVE LOGISTICS PERFORMANCES by Đalić, Irena; Ateljević, Jovo; Stević, Željko; Terzić, Svetlana (2020) - From these reasons, in this research it was conducted SWOT analysis of specific company, and after that the elements of the SWOT matrix were ranked using fuzzy PIPRECIA method. The most often used method of analyzing the state of the company is SWOT analysis, which can be seen from the numerous literature that deals with this topic. Keywords: analysis; company; criteria; management; method; piprecia; swot; swot analysis
• A CENTER MANIFOLD THEORY-BASED APPROACH TO THE STABILITY ANALYSIS OF STATE FEEDBACK TAKAGI-SUGENO-KANG FUZZY CONTROL SYSTEMS by Precup, Radu-Emil; Preitl, Stefan; Petriu, Emil M.; Roman, Raul-Cristian; Bojan-Dragos, Claudia-Adina; Hedrea, Elena-Lorena; Szedlak-Stinean, Alexandra-Iulia (2020) - [27], that the classical approach based on PDC to stabilize fuzzy control systems and the use LMIs in the stability analysis may introduce computational burden, complexity and coupling of subsystems. Tanaka, K., Sugeno, M., 1992, Stability analysis and design of fuzzy control systems, Fuzzy Sets and Systems, 45(2), pp. 135-156. 2. Keywords: analysis; approach; control; control systems; controllers; data; design; feedback; fuzzy; ieee; model; precup; preitl; r.-e; stability; state; systems
• NOVEL METHODOLOGY FOR REAL-TIME STRUCTURAL ANALYSIS ASSISTANCE IN CUSTOM PRODUCT DESIGN by Zdravković, Milan; Korunović, Nikola (2023) - Concept of using compiled FEA models for real-time assistance in product design and validation The compiled FEA model is based on the physical quantities and properties (for example, level of mechanical stresses in critical product areas, product mass and the like) of the number of “characteristic” data instances. 5. Ghoreishi, M., Happonen, A., 2020, New promises AI brings into circular economy accelerated product design: a review on supporting literature, E3S Web Conf., 158, 06002. Keywords: analysis; data; dataset; design; fea; features; model; parameters; product; properties; quantities; time
• EFFECT OF FIBER ORIENTATION PATH ON THE BUCKLING, FREE VIBRATION, AND STATIC ANALYSES OF VARIABLE ANGLE TOW PANELS by Fallahi, Nasim; Viglietti, Andrea; Carrera, Erasmo; Pagani, Alfonso; Zappino, Enrico (2020) - [29] used the finite element method to study the dynamic instability of VAT composite plates subjected to in-plane loading. This discussion indicates that although several reports exist regarding the static and dynamic analyses of VAT composite panels performed under the framework of various displacement models as well as different approximation approaches, the effect of the fiber orientation angle on the static, buckling and free-vibration response of VAT composite plates under various boundary conditions has not been extensively investigated. Keywords: analysis; angle; buckling; composite; fiber; lay; mode; structures; variable; vat; vibration
• RECENT IMPROVEMENTS OF THE OPTICAL AND THERMAL PERFORMANCE OF THE PARABOLIC TROUGH SOLAR COLLECTOR SYSTEMS by Al-Rabeeah, Asaad Yasseen; Seres, István; Farkas, István (2022) - Jebasingh, V.K., Herbert, G.J., 2016, A review of solar parabolic trough collector, Renewable and Sustainable Energy Reviews, 54, pp. Olia, H., Torabi, M., Bahiraei, M., Ahmadi, M.H., Goodarzi, M., Safaei, M.R., 2019, Application of nanofluids in thermal performance enhancement of parabolic trough solar collector: state-of-the- art, Applied Sciences, 9(3), 463. 10. Keywords: absorber; analysis; collector; conductivity; efficiency; energy; fluid; heat; heat transfer; nanofluids; parabolic; performance; ptscs; receiver; solar; temperature; thermal; transfer; trough; tube; water
• A NOVEL INTEGRATED MCDM-SWOT-TOWS MODEL FOR THE STRATEGIC DECISION ANALYSIS IN TRANSPORTATION COMPANY by Đalić, Irena; Stević, Željko; Ateljević, Jovo; Turskis, Zenonas; Zavadskas, Edmundas Kazimieras; Mardani, Abbas (2021) - The DMRs act in the fuzzy and dynamically changing environment 56. Analysis of SWOT of transport company helps DMRs assume that organizations achieve maximum strategic success by effectively leveraging and strengthening their strengths and opportunities in a dynamically changing business environment. Still, transport companies together have much more opportunities to act to reduce various taxes in many fields. Keywords: analysis; business; company; criteria; decision; management; method; model; step; strategy; swot; transport
• STUDY TOWARDS THE TIME-BASED MCDA RANKING ANALYSIS – A SUPPLIER SELECTION CASE STUDY by Kizielewicz, Bartłomiej; Więckowski, Jakub; Shekhovtsov, Andrii; Wątróbski, Jarosław; Depczyński, Radosław; Sałabun, Wojciech (2021) - 5 Month to month MCDA based supplier rankings comparison with weighted Spearman correlation coefficient for standard deviation type weights Fig. 6 Month to month MCDA based supplier rankings comparison with WS similarity coefficient for equal type weights Study towards the Time-Based MCDA Ranking Analysis – a Supplier Selection Case Study 391 Fig. 7 Month to month MCDA based supplier rankings comparison with WS similarity coefficient for standard deviation type weights A relatively high correlation of rankings is shown in both cases, both for all used methods of determining the relative importance of attributes (Entropy, Equal and Standard deviation methods) and MCDA methods (COMET, SPOTIS and TOPSIS). Several works have also used rule-based and mixed-mode expansions of MCDA methods, and the current state of research in this area is available in Ref. Keywords: analysis; coefficient; criteria; decision; mcda; methods; month; rankings; selection; study; supplier; topsis; weights
• A NEW LOGARITHM METHODOLOGY OF ADDITIVE WEIGHTS (LMAW) FOR MULTI-CRITERIA DECISION-MAKING: APPLICATION IN LOGISTICS by Pamučar, Dragan; Žižović, Mališa; Biswas, Sanjib; Božanić, Darko (2021) - A comparative analysis of multi-criteria decision models for ERP package selection for improving supply chain performance, Asia-Pacific Journal of Management Research and Innovation, 12(3-4), pp. Comparison of the LMAW method with other multi-criteria methods A New Logarithm Methodology of Additive Weights (LMAW) for Multi-Criteria Decision-Making... 373 The VIKOR, TOPSIS and RAFSI methods confirmed the ranks of the LMAW method, with a high correlation, as the Spearman’s coefficient (SCC) for all three methods amounted to 0.943. Keywords: alternatives; analysis; criteria; decision; lmaw; logistics; making; method; model; multi; new; topsis; values
• PARAMETRIC STUDY OF A CNC TURNING PROCESS USING DISCRIMINANT ANALYSIS by Sarker, Baneswar; Chakraborty, Shankar (2023) - In this paper, an endeavor is put forward to apply discriminant analysis as a multivariate statistical tool to investigate the effects of speed, feed, depth of cut, nose radius and type of the machining environment of a CNC turning center on surface roughness, tool life, cutting force and power consumption. Keeping this objective in mind, this paper aims at the application of discriminant analysis for a CNC turning process in order to develop the corresponding discriminant functions showing the influences of Parametric Study of a CNC Turning Process using Discriminant Analysis 203 the considered process parameters on the responses, as well as to single out the most significant parameter for each of the responses. Keywords: analysis; cnc; cut; discriminant; function; group; process; table; turning; values; variables
• NONLINEAR VIBRATION RESPONSE OF PIEZOELECTRIC NANOSENSOR: INFLUENCES OF SURFACE/INTERFACE EFFECTS by Hashemi Kachapi, Sayyid H. (2023) - Recently, using surface effect, buckling and postbuckling analysis and also vibration behavior of nano structures with piezoelectric layers are studied by Fang et al. Pourkiaee, S. M., Khadem, S. E., Shahgholi, M., Bab, S., 2017, Nonlinear modal interactions and bifurcations of a piezoelectric nanoresonator with three-to-one internal resonances incorporating surface effects and van der Waals dissipation forces, Nonlinear Dynamics, 88, pp. Keywords: analysis; effects; interface; pens; pull; surface; ̅ �; � ̅
• AN INTEGRATED DECISION-MAKING MODEL FOR EFFICIENCY ANALYSIS OF THE FORKLIFTS IN WAREHOUSING SYSTEMS by Mahmutagić, Eldina; Stević, Željko; Nunić, Zdravko; Chatterjee, Prasenjit; Tanackov, Ilija (2021) - The collected data from the analysis of forklift efficiency and application of the integrated DEA-MCDM model cover one calendar year (2019). Section 4 presents application of DEA method, while Section 5 provides selection of the most efficient forklift using FUCOM and MARCOS methods. Keywords: analysis; criteria; criterion; dea; efficiency; forklifts; fucom; marcos; method; model; results; value
• FRACTURE PARAMETERS EVALUATION FOR THE CRACKED NONHOMOGENEOUS ENAMEL BASED ON THE FINITE ELEMENT METHOD AND VIRTUAL CRACK CLOSURE TECHNIQUE by Cai, Yan; Zhou, Liming; Li, Ming (2023) - Example 1 Given the problem of central enamel cracks, we have selected finite-width central crack tension trials. To accurately solve the fracture parameters of enamel, we have established computational nonhomogeneous enamel models and constructed the fracture element of enamel dumb nodes, based on the enamel mineral concentration, nonhomogeneous mechanical properties, and virtual crack closure technique. Keywords: analysis; closure; crack; element; enamel; factors; fig; finite; fracture; materials; method; model; technique; vcct
• ANALYTIC APPROXIMATE SOLUTION FOR NONLINEAR DYNAMIC MODELING OF THE ROTATING ELASTIC 2D BEAM WITH A SINGLE CRACK by Tavakoli Maleki, Arash; Azimi, Milad; Moradi, Samad (2022) - Several analytical solutions have been presented for nonlinear vibration analysis of non-rotating structures. Ansari, R., Gholami, R., Rouhi, H., 2019, Geometrically nonlinear free vibration analysis of shear deformable magneto-electro-elastic plates considering thermal effects based on a novel variational approach, Thin-Walled Structures, 135, pp. 12-20. Keywords: analysis; beam; nonlinear; rotating; u u; vibration

• PROCESS OPTIMIZATION BY APPLYING THE RESPONSE SURFACE METHODOLOGY (RSM) TO THE ABRASIVE SUSPENSION WATER JET CUTTING OF PHENOLIC COMPOSITES by Perec, Andrzej; Radomska-Zalas, Aleksandra; Fajdek-Bieda, Anna; Pude, Frank (2023) - [7], for optimization of abrasive water cutting process using the TOPSIS method [8],or even multi response optimization of process parameters based on the Taguchi-Fuzzy model for coal cutting by water jet technology [9] and multi response optimization on the AWIJ machining of Stainless Steel by the VIKOR approach coupled with S/N ratio methodology [23] have compared the AWIJ principle and the AWSJ principle and shown that abrasive water jet cutting is an appropriate alternative to commonly used diamond grinding or laser cutting processes. Keywords: abrasive; awsj; composite; cutting; depth; fig; jet; machining; nozzle; parameters; process; surface; water
• BENDING, BUCKLING AND FREE VIBRATION ANALYSES OF NANOBEAM-SUBSTRATE MEDIUM SYSTEMS by Limkatanyu, Suchart; Sae-Long, Worathep; Rungamornrat, Jaroon; Buachart, Chinnapat; Sukontasukkul, Piti; Keawsawasvong, Suraparb; Chindaprasirt, Prinya (2022) - = Proposed model ( )2s m = = Simplified strain gradient model ( )0For all e a Eringen nonlocal model ( )0For all e a Local model Proposed model ( )0.25s m = = Fig. 4 Transverse displacement versus distance along nanobeam of Simulation I for analysis case I 7.1.2.            2 2 5 3 0 0 0 0 5 3 0 3 5 2 20 0 2 3 2 0 4 0 0 4 ( , ) ( , ) ( , ) ( , ) ( ) ( ) ( ) ( , ) ( , ) (2 ) ( , ) ( , ) ( ) ( ) T H L sur eff eff res x L v v x H L eff eff dxdt x t v x t v x t v x t v x t Keywords: beam; effect; gradient; l t; material; medium; model; nanobeam; strain; substrate; surface; t v; v x; x l; x t;  
• EXPERIMENTAL INVESTIGATION OF FACE MILLING ALUMINUM ALLOY EN AW – 2011 T6 USING VARIOUS COOLING TECHNIQUES by Ćulum, Igor; Jozić, Sonja; Bajić, Dražen; Dumanić, Ivana (2023) - Using the test results and regression models, surface plots showing the influence of cutting speed and feed per tooth on up milled surface roughness parameters were generated. Using the test results and regression models, surface plots showing the influence of cutting speed and feed per tooth on up milled surface roughness parameters were generated. Keywords: c t; cutting; f c; milling; roughness; surface; surface roughness; t ; tooth;  
• AN INVESTIGATION ON MEAN ROUGHNESS DEPTH AND MATERIAL EROSION SPEED DURING MANUFACTURING OF STAINLESS-STEEL MINIATURE RATCHET GEARS BY WIRE-EDM by Chaubey, Sujeet Kumar; Gupta, Kapil; Madić, Miloš (2023) - Figures 6, 7 and 8 depict bearing area curves of the theoretical concept, best surface quality miniature ratchet gear Rz- 5.30 µm and poor surface quality miniature ratchet gear Bearing area curve for poor surface quality ratchet gear The coefficient of friction (COF) which is a ratio between friction and normal forces depends on adhesion and roughness between two surfaces. Keywords: depth; edm; erosion; gear; material; mean; miniature; parameters; ratchet; roughness; speed; surface; values; wire
• REVERSE ENGINEERING OF THE MITKOVIC TYPE INTERNAL FIXATOR FOR LATERAL TIBIAL PLATEAU by Vitković, Nikola; Mitković, Milan M.; Mitković, Milorad B.; Korunović, Nikola; Stevanović, Dalibor; Veselinović, Marko (2015) - 5 Definition of MIF-LTP contact surface with initial parametric points: a) Projected Curve on bone polygonal model; b) Anatomical and Supporting points; c) Surface created over the constructed points; d) By the application of techniques and procedures created by MAF it is possible to create complete bone models even in the cases when input scans provide incomplete data 262 N. VITKOVIĆ, M. M. MITKOVIĆ, M.B. MITKOVIĆ, N. KORUNOVIĆ, D. STEVANOVIĆ, M. VESELINOVIĆ about bone geometry, topology and anatomy, as presented in Fig. Keywords: bone; fixator; internal; ltp; mif; model; points; surface
• INVESTIGATION OF HEAT-AFFECTED ZONES OF THERMITE RAIL WELDINGS by Fischer, Szabolcs; Harangozó, Dóra; Németh, Dalma; Kocsis, Bence; Sysyn, Mykola; Kurhan, Dmytro; Brautigam, András (2024) - The rails can be connected with the help of fishplates and bolts, as well as rail welding. These methods can be well adapted to predict the fatigue crack initiation, thus, the life cycle of rail welding. Keywords: axis; fig; hardness; heat; rail; railway; running; sample; surface; thermite; values; welding
• SURFACE ROUGHNESS OF Ti6Al4V ALLOY PRODUCED BY LASER POWDER BED FUSION by Liović, David; Franulović, Marina; Ferlič, Luka; Gubeljak, Nenad (2024) - [36, 37], which would influence surface roughness values differently [9]. Thus, in the literature, wide ranges of resulting average surface roughness values of L-PBF Ti6Al4V specimens have been reported by different groups of authors Keywords: alloy; laser; model; parameters; pbf; powder; process; scanning; specimens; surface; surface roughness; ti6al4v; values
• INVESTIGATION OF THE APPLICATION OF AUSTENITIC FILLER METALS IN PAVED TRACKS FOR THE REPAIR OF THE RUNNING SURFACE DEFECTS OF RAILS CONSIDERING FIELD TESTS by Brautigam, András; Szalai, Szabolcs; Fischer, Szabolcs (2023) - These techniques are intended to reduce flock sensitivity while increasing rail track hardness. The above study confirms that there has been a lot of research on rail hardnesses and their interactions with railway wheels, but no studies have shown the application of austenitic filler materials on the rails' running surfaces. Keywords: fig; filler; hardness; layer; rail; railway; repair; running; steel; surface; track; values; wear; welding; welds; wheel
• INVESTIGATIONS ON THE INFLUENCE OF LASER SURFACE TREATMENT ON HARDNESS AND WEAR BEHAVIOUR OF AL-MMC PREPARED THROUGH POWDER METALLURGY ROUTE by Sankhla, Arvind; Patel, Kaushik; Makhesana, Mayur; Patel, Anand; Gupta, Kapil (2024) - Therefore, the current work investigates the impact of SiC particle addition and laser surface treatment on the hardness and wear characteristics of aluminium metal matrix composite (Al-MMC). Pin-on-disk wear tests were performed on MMC samples before and after laser processing to determine the effect of laser surface treatment. Keywords: hardness; laser; laser treatment; materials; matrix; metal; mmc; particles; sic; surface; treatment; wear
• AGRO-WASTE NATURAL FIBER SAMPLE PREPARATION TECHNIQUES FOR BIO-COMPOSITES DEVELOPMENT: METHODOLOGICAL INSIGHTS by Phiri, Resego; Rangappa, Sanjay Mavinkere; Siengchin, Suchart; Marinkovic, Dragan (2023) - This study aims to provide a comprehensive assessment of the various extraction and modification techniques employed for natural fibers. Additionally, the paper explores chemical and physical treatments, highlighting how each method influences the structure and properties of natural fibers. Keywords: agro; bio; bleaching; chemical; composites; effect; extraction; fibers; harvesting; materials; modification; natural; plant; process; properties; retting; surface; techniques; treatment; waste; water
• GRAIN-SCALE DEFORMATION MECHANISMS IN AN ADDITIVELY MANUFACTURED ALUMINIUM BRONZE OLIGOCRYSTAL by Romanova, Varvara; Lychagin, Dmitry; Pisarev, Maxim; Zinovieva, Olga; Balokhonov, Ruslan (2024) - Special focus is placed on the analysis of microscale stress and strain fields and their interrelation with the activation of slip systems in surface grains and the evolution of surface morphology. 10 V. ROMANOVA, D.V. LYCHAGIN, M. PISAREV, O. ZINOVIEVA, R. BALOKHONOV 4.2 Analysis of Active Slip Systems The experimental data, numerical results and analytical estimates were brought together to reveal the peculiarities of slip activation in surface grains under compression. Keywords: compression; deformation; fig; grain; mechanisms; oligocrystal; plastic; scale; slip; slip systems; strain; stress; surface; systems
• SELECTION OF OPTIMAL TECHNOLOGICAL PARAMETERS FOR FORMING NOMINALLY FLAT SURFACES WITH LUBRICATING MICROCAVITIES by Kuznetsov, Viktor P.; Tatarintsev, Igor V.; Voropaev, Vladimir V.; Korelin, Andrei V. (2024) - The aim of this study is to determine the optimal combination of technological parameters for hardening burnishing (normal force, feed rate and number of tool passes) according to the criteria of microhardness HV, mean absolute error of microprofile Sa and the minimization of periodic impacts’ influence that appear after the turning step, the optimization of grit and 462 V.P. KUZNETSOV, I.V. TATARINTSEV, V.V. VOROPAEV, A.V. KORELIN application force of the honing stone during deformation profiling of lubricating microcavities by the criterion of surface oil absorption power, and normal force during smoothing burnishing by the criterion of minimum plateau roughness and maximum surface oil absorption power Vvv. Both particular parameter values and a multitude of surface topography parameters can be used to assess the quality of nominally flat surfaces and their tribological properties. Keywords: burnishing; feed; force; microcavities; parameters; psd; rate; rev; surface; turning
• COMPARISON OF NONCLASSICAL CONTROLLERS ON ‎NONLINEAR VIBRATIONS ANALYSIS OF PIEZOELECTRIC ‎NANORESONATOR by Hashemi Kachapi, Sayyid H.; Hashemi Kachapi, Sayyideh Gh. (2025) - = (1 − �̅� �̅�2) 𝜕2�̅� 𝜕𝜏2 , (8) (1 − �̅� �̅�2) ( 𝛼1𝑤 𝜕𝑢 𝜕𝜉 + 𝛼2𝑤 𝜕𝑢 𝜕𝜉 𝜕2�̅� 𝜕𝜉2 + 𝛼3𝑤 𝜕𝑢 𝜕𝜉 𝜕2�̅� 𝜕𝜃2 + 𝛼4𝑤 𝜕2𝑢 𝜕𝜉2 𝜕�̅� 𝜕𝜉 + 𝛼5𝑤 𝜕2𝑢 𝜕𝜉𝜕𝜃 𝜕�̅� 𝜕𝜃 +𝛼6𝑤 𝜕2𝑢 𝜕𝜉𝜕𝜃 𝜕�̅� 𝜕𝜃 + 𝛼7𝑤 𝜕𝑢 𝜕𝜃 𝜕2�̅� 𝜕𝜉𝜕𝜃 + 𝛼8𝑤 𝜕2𝑢 𝜕𝜃2 𝜕�̅� 𝜕𝜉 + 𝛼9𝑤 𝜕�̅� 𝜕𝜉 𝜕2�̅� 𝜕𝜉𝜕𝜃 +𝛼10𝑤 𝜕2�̅� 𝜕𝜉2 𝜕�̅� 𝜕𝜃 + 𝛼11𝑤 𝜕2�̅� 𝜕𝜉𝜕𝜃 𝜕�̅� 𝜕𝜉 + 𝛼12𝑤 𝜕�̅� 𝜕𝜃 + 𝛼13𝑤 𝜕�̅� 𝜕𝜃 𝜕2�̅� 𝜕𝜉2 +𝛼14𝑤 𝜕�̅� 𝜕𝜃 𝜕2�̅� 𝜕𝜃2 + 𝛼15𝑤 𝜕2�̅� 𝜕𝜃2 𝜕�̅� 𝜕𝜃 + 𝛼16𝑤�̅� + 𝛼17𝑤�̅� 𝜕2�̅� 𝜕𝜉2 + 𝛼18𝑤�̅� 𝜕2�̅� 𝜕𝜃2 +𝛼19𝑤 𝜕2�̅� 𝜕𝜉2 + 𝛼20𝑤 𝜕�̅� 𝜕𝜉 𝜕2�̅� 𝜕𝜉𝜕𝜃 𝜕�̅� 𝜕𝜃 + 𝛼21𝑤 𝜕2�̅� 𝜕𝜉2 ( 𝜕�̅� 𝜕𝜉 ) 2 + 𝛼22𝑤 𝜕2�̅� 𝜕𝜉2 ( 𝜕�̅� 𝜕𝜃 ) 2 +𝛼23𝑤 𝜕4�̅� 𝜕𝜉4 + 𝛼24𝑤 ( 𝜕�̅� 𝜕𝜉 ) 2 + 𝛼25𝑤 𝜕4�̅� 𝜕𝜉2𝜕𝜃2 + 𝛼26𝑤 ( 𝜕�̅� 𝜕𝜉 ) 2 𝜕2�̅� 𝜕𝜃2 +𝛼27𝑤 𝜕2�̅� 𝜕𝜃2 + 𝛼28𝑤 𝜕4�̅� 𝜕𝜃4 + 𝛼29𝑤 𝜕2�̅� 𝜕𝜃2 ( 𝜕�̅� 𝜕𝜃 ) 2 + 𝛼30𝑤 ( 𝜕�̅� 𝜕𝜃 ) 2 +𝛼31𝑤 𝜕4�̅� 𝜕𝜉2𝜕𝜏2 + 𝛼32𝑤 𝜕4�̅� 𝜕𝜃2𝜕𝜏2 + 𝛼33𝑤 ) (9) = (1 − �̅� �̅�2) ( 𝜕2�̅� 𝜕𝜏2 + 𝐶�̅� 𝜕�̅� 𝜕𝜏 + 𝐾𝑤�̅� − 𝐾𝑝�̅� 2�̅� − �̅�𝑒(�̅�𝐷𝐶 + �̅�𝐴𝐶 𝑐𝑜𝑠(�̅�𝜏)) 2 √(𝑚1�̅� − �̅�)(2𝑚4�̅� + 𝑚1�̅� − �̅�) Also, Figs. 17-22 present frequency response and stability analysis PENR for different values of direct (�̅�𝑫𝑪) and alternating (�̅�𝑨𝑪) voltages based on different theories of CT, NLT, SGT, GMSIT, GMSIT combined with NLT and SGT for CC boundary conditions. Keywords: frequency; hashemi; parameter �; piezoelectric; surface; ̅ �; � ̅; � �; � 𝐴𝐶; � 𝐷𝐶; � 𝜕𝜃; � 𝜕𝜉; � 𝜕𝜉2; 𝜕 �; 𝜕2 �
• COMPREHENSIVE EVALUATION OF DIMENSIONAL DEVIATION, FLANK WEAR, SURFACE ROUGHNESS AND MATERIAL REMOVAL RATE IN DRY TURNING OF C45 STEEL by Milosevic, Aleksandar; Simunovic, Goran; Kanovic, Zeljko; Simunovic, Katica; Santosi, Zeljko; Sokac, Mario; Vukelic, Djordje (2024) - In contrast to the previous work, this study shows the influence of a larger number of input parameters on a larger number of output parameters in dry turning of C45 steel. Dragicevic, M., Begović, E., Peko, I., 2019, Optimization of dry turning process parameters using Taguchi method combined with fuzzy logic approach, Proceedings on Engineering Sciences, 1(1), pp. 429-435. 19. Keywords: corner; cutting; feed; flank; input; output; parameters; radius; roughness; speed; standard; surface; turning; wear; wiper
• MECHANICALLY PRESSED POLYMER-MATRIX COMPOSITES WITH 3D STRUCTURED FILLER NETWORKS FOR ELECTROMAGNETIC INTERFERENCE SHIELDING APPLICATION by Choi, Chunghyun; Qaiser, Nadeem; Hwang, Byungil (2024) - Therefore, the PS@MXene@BNNSs composite developed in this study shows significant potential for use in electronic devices requiring electromagnetic wave shielding. Figure 3(b) presents the MAX and MXene XPS analysis. Keywords: aptes; bnnss; charge; composites; emi; fig; materials; mxene; potential; shielding; surface; zeta
• CU-CU MECHANICAL BONDING FOR 3D INTEGRATION OF THE NEXT GENERATION ELECTRONIC CHIPS: INTERFACIAL MECHANISMS, SURFACE ENGINEERING, AND EMERGING LOW-TEMPERATURE STRATEGIES by Choi, Sooyong; Chen, Chih-Ming; Hwang, Byungil (2025) - Lee, S., Park, S., Kim, S.E., 2023, Low-temperature diffusion of Au and Ag nanolayers for Cu bonding, Applied Sciences, 14(1), 147. In SAB, an ion or high-velocity atomic beam is used to activate the bonding surfaces in a UHV environment, facilitating the formation of chemical bonds between Cu surfaces at room temperature [62]. Keywords: chen; copper; cu bonding; cu films; cu surface; direct; fig; grain; high; interface; journal; layer; materials; passivation; roughness; strength; surface; temperature; temperature cu; void; ° c
• NUMERICAL STUDY OF STRESS-STRAIN LOCALIZATION IN THE TITANIUM SURFACE MODIFIED BY AN ELECTRON BEAM TREATMENT by Balokhonov, Ruslan; Romanova, Varvara; Panin, Alexey; Martynov, Sergey; Kazachenok, Marina (2016) - Plastic strain localization is found to depend on the grain yield strength. Plastic strain localization is most pronounced in titanium grains undergoing high resolved shear stresses, and the plastic strain localization bands assume a curvilinear form due to grain rotation. Keywords: layer; localization; plastic; strain; stress; surface; titanium
• ADHESION EFFECTS WITHIN THE HARD MATTER – SOFT MATTER INTERFACE: MOLECULAR DYNAMICS by Tsukanov, Alexey; Psakhie, Sergey (2016) - In the case of soft matter systems and systems having covalent bonds, the most typical terms in the potential energy functional of the bonded atoms are the bond stretching term, angle bending, Urey-Bradly 1-3 stretching term, dihedral or torsional angle bending and improper rotation or inversions term (Fig. 1). (2) The most famous all-atom force fields for soft matter systems are GROMACS Keywords: adsorption; amino; carboxylic; dynamics; energy; fig; force; groups; ldh; matter; molecules; nanosheet; process; state; surface
• TOWARDS PATIENT SPECIFIC PLATE IMPLANTS FOR THE HUMAN LONG BONES: A DISTAL HUMERUS EXAMPLE by Rashid, Mohammed; Husain, Karim; Vitković, Nikola; Manić, Miodrag; Petrović, Slađana (2018) - Musuvathy, S., Azernikov, S., Fang, T., 2011, Semi-automatic customization of internal fracture fixation plates, Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE, Boston MA, Aug. 30 2011-Sept. 3, pp. In order to demonstrate the complexity of the elbow fractures, in Fig. 1 radiographs of 31 year old man with plate fixation are presented [31]. Keywords: bone; fixation; fractures; human; humerus; model; patient; plate; surface
• ALTERNATIVE METHOD FOR ON SITE EVALUATION OF THERMAL TRANSMITTANCE by Janković, Aleksandar; Antunović, Biljana; Preradović, Ljubiša (2017) - An effective and simple method for determination of thermal transmittance is in situ measurement, which is governed by the ISO 9869-1:2014 that defines heat flow meter method. The hot box method is mainly used for thermal transmittance measurements of inhomogeneous components such as windows, doors and thermal bridges in laboratory and cannot be used for in situ measurements. Keywords: air; building; heat; hfm; method; surface; temperature; transmittance; wall
• SURFACE-TREATED AND FIBRIN-COATED ELECTROSPUN POLYACRYLONITRILE FIBER FOR ENDOTHELIAL CELL GROWTH AND PROLIFERATION by Rashidi, Nur Syazana; Sukmana, Irza; Mataram, Agung; Jasmawati, Noor; Rofi, Mohd Ramdan Mohd; Kadir, Mohammed Rafiq Abdul (2018) - However, the absorbance value for NaOH treated PAN fibers and Na2CO3 treated PAN fibers showed nearly the same absorbance on day 7. To overcome this problem, two groups of electrospun PAN fibers were treated with sodium carbonate (Na2CO3) and sodium hydroxide (NaOH), respectively at 100oC for 5 minutes. Keywords: cell; electrospun; endothelial; fiber; fibrin; huvecs; na2co3; naoh; pan; pan fiber; polyacrylonitrile; surface; surface treatment; treatment
• INFLUENCE OF THE CUTTING PARAMETERS ON FORCE, MOMENT AND SURFACE ROUGHNESS IN THE END MILLING OF ALUMINUM 6082-T6 by Stanojković, Jelena; Radovanović, Miroslav (2022) - Surface roughness was measured using a Mahr profilometer. The machined surface quality is evaluated by surface roughness of the machined part and it is one of the most significant product quality characteristics Keywords: cutting; force; milling; moment; roughness; surface
• USER DEFINED GEOMETRIC FEATURE FOR THE CREATION OF THE FEMORAL NECK ENVELOPING SURFACE by Stojković, Miloš; Trifunović, Milan; Milovanović, Jelena; Arsić, Stojanka (2022) - 5) ▪ Angle between FNA and femur body(Fig. 5) ▪ Femoral neck curve – FNC(Fig. 5) Creation of FNC starts with construction of FNA. Collecting the raw material (CT scans) for analysis of femoral neck geometry 2. Keywords: bone; cross; femur; fig; geometry; model; neck; reconstruction; sections; surface; udf
• EXPERIMENTAL INVESTIGATION OF OPTIMAL ED MACHINING PARAMETERS FOR Ti-6Al-4V BIOMATERIAL by Bhui, Amandeep Singh; Singh, Gurpreet; Sidhu, Sarabjeet Singh; Bains, Preetkanwal Singh (2018) - From the results, it is found that the discharge current has significant influence on material removal rate (MRR) and surface roughness (SR) followed by other selected parameters, i.e. pulse-on time, pulse-off time. Furthermore, with increase in pulse time, the electrode wear decreased drastically, whereas surface roughness was greater at higher pulse-on time and higher current intensity. Keywords: alloy; current; edm; machining; parameters; pulse; surface; ti-6al-4v; time
• ON THE EFFECT OF THE SIDE FLOW OF 316L STAINLESS STEEL IN THE FINISH TURNING PROCESS UNDER DRY CONDITIONS by Leksycki, Kamil; Feldshtein, Eugene; Ociepa, Michał (2021) - In the zone of an intense plastic side flow (red color) for higher cutting speeds and lower feed rates an irregular distribution of single burrs and a few clear areas of the 340 K. LEKSYCKI, E. FELDSHTEIN, M. OCIEPA flowing material were observed, whereas within the range of medium cutting speeds and lower feed rates side flow was regular on the whole length of the machined surface. As stated in Grzesik [17], the phenomenon of side flow can also be caused by the outflow of the material plasticized under high temperatures and high pressure values generated in the cutting zone and caused by a worn out cutting wedge. Keywords: cutting; feed; flow; material; steel; surface; turning
• IMPACT OF INDENTOR SLIDING VELOCITY AND LOADING REPETITION FACTOR ON SHEAR STRAIN AND STRUCTURE DISPERSION IN NANOSTRUCTURING BURNISHING by Kuznetsov, Victor P.; Skorobogatov, Andrey S.; Gorgots, Vladimir G. (2019) - INTRODUCTION Burnishing implementation as a surface plastic deforming technique has been widely applied for finishing surface layers of precision parts on metal-cutting machines. Qualitative surface layers containing ultra-fine grains or nano-grains can be formed in the process of cryogenic burnishing of an AI 7050-T7451 alloy with a roller tool Keywords: burnishing; layer; shear; shear strain; strain; surface; velocity
• SURFACE MORPHOLOGY AND MICROHARDNESS BEHAVIOR OF 316L IN HAP-PMEDM by Singh, Gurpreet; Lamichhane, Yubraj; Bhui, Amandeep Singh; Sidhu, Sarabjeet Singh; Bains, Preetkanwal Singh; Mukhiya, Prabin (2019) - This research work was conducted to investigate the influence of nano hydroxyapatite (HAp) powder mixed electrical discharge machining (PMEDM) on surface morphology and microhardness of modified 316L stainless steel surface. Key Words: PMEDM, 316L SS, Copper Tool, HAp Powder, Microhardness, Bioactivity 1. INTRODUCTION Biomaterials are artificial organs or implants preferably from the family of ceramics, polymeric and metallic biomaterials (titanium alloys, stainless steel 316L and Cr-Co alloys) for the substitution of the damaged human body organ. Keywords: 316l; dielectric; hap; hydrocarbon; microhardness; oil; powder; steel; surface
• SURFACE MODIFICATION OF RING-TRAVELER OF TEXTILE SPINNING MACHINE FOR SUBSTANTIALITY by Bains, Preetkanwal Singh; Grewal, Jasmaninder Singh; Sidhu, Sarabjeet Singh; Kaur, Sandeep; Singh, Gurpreet (2020) - Typical X-ray diffractograms (Fig. 7) for plasma sprayed coatings on E52100 specimens were carried out for phase identification with a rate of scanning ranging from 1º to 100º/min (2Theta) with Cu-Kα radiation equals to 1.5418Å. Surface Modification of Ring-Traveler of Textile Spinning Machine for Substantiality 37 Table 4 Experimentation design and results Trials Coatings Load CVL (mm3) S/N Ratio (dB) R1 R2 1 WC-Co-Cr 30 0.059 0.061 24.4358 2 WC-Co-Cr 40 0.048 0.052 26.0137 3 WC-Co-Cr 50 0.090 0.101 20.3856 4 Al2O3 +13TiO2 30 0.084 0.084 21.5144 5 Al2O3 +13TiO2 40 0.083 0.086 21.4615 6 Al2O3 +13TiO2 50 0.099 0.111 19.5621 7 Cr3C2NiCr 30 0.300 0.299 10.4721 8 Cr3C2NiCr 40 0.665 0.665 3.5436 9 Cr3C2NiCr 50 0.528 0.531 5.5226 Hence, the wear resistance of plasma sprayed coatings generated on E52100 substrate was recorded as WC-Co-Cr > Al2O3 +13TiO2 > Cr3C2NiCr in their decreasing order. Keywords: al2o3; coatings; cr3c2nicr; e52100; fig; plasma; ring; surface; wear
• NUMERICAL INVESTIGATION OF THE INFLUENCE OF THE LINK POSITIONING IN THE CORONARY STENT INSIDE THE NORMAL ARTERY: A COMPARATIVE STUDY OF TWO COMMERCIAL STENT DESIGNS by Bekal, Chandrakantha; Shenoy, Satish; Shetty, Ranjan (2023) - 9 Artery and stent surface after expansion, indicating larger tissue prolapse through stent struts at location without link (a) and no prolapse at location with link (b) (legend unit, mm) Clinicians are encountered with a variety of stent designs to choose from with a variety of geometrical configurations [7]. Keywords: arterial; artery; design; displacement; fig; link; stent; stress; surface; vms
• PARAMETRIC ANALYSIS OF A GRINDING PROCESS USING THE ROUGH SETS THEORY by Agarwal, Subham; Dandge, Shruti Sudhakar; Chakraborty, Shankar (2020) - Thus, in this paper, a maiden endeavor is put forward to apply the concepts of the RST to a grinding process so as study the effects of various grinding parameters on different measured responses and predict the optimal settings of those parameters. These rules simply depict the relationships between various grinding parameters and responses to effectively control the said grinding operation. Keywords: data; grinding; low; parameters; process; q =; qty =; responses; rule; speed; surface
• GUIDELINES TO SIMULATE LINEAR VISCOELASTIC MATERIALS WITH AN ARBITRARY NUMBER OF CHARACTERISTIC TIMES IN THE CONTEXT OF ATOMIC FORCE MISCROSCOPY by Forstenhäusler, Maximilian; López-Guerra, Enrique A.; Solares, Santiago D. (2021) - As the cantilever approaches the sample, this variable will become negative, indicating that tip- sample contact has been established and that viscoelastic forces can now be calculated using Eq. Note that �̅�(𝑠) and �̅�(𝑠) are now simply polynomials in the complex variable ‘s’. Keywords: afm; force; maxwell; model; sample; step; surface; time; tip; viscoelastic; ̇ �; � ̇
• IMPROVEMENT OF SURFACE QUALITY OF Ti-6Al-4V ALLOY BY POWDER MIXED ELECTRICAL DISCHARGE MACHINING USING COPPER POWDER by Haque, Rafiqul; Sekh, Mukandar; Kibria, Golam; Haidar, Shamim (2023) - (e) The optimal value of machining process parameters of peak current (Ip), pulse on time (Ton), pulse off time (Toff) and powder concentration (Cp) are 7 A, 10 µs, 30 µs and 4 g/l, respectively, for this copper powder mixed electrical discharge machining process. The EDM process improvement may be further enhanced by incorporating the convenient modifications like mixing the electrically conductive powder materials in the dielectric fluid medium which is called powder mixed EDM (PMEDM). Keywords: alloy; grey; machining; material; mrr; parameters; pmedm; powder; process; surface; time; twr
• FOURTH-ORDER STRAIN GRADIENT BAR-SUBSTRATE MODEL WITH NONLOCAL AND SURFACE EFFECTS FOR THE ANALYSIS OF NANOWIRES EMBEDDED IN SUBSTRATE MEDIA by Sae-Long, Worathep; Limkatanyu, Suchart; Sukontasukkul, Piti; Damrongwiriyanupap, Nattapong; Rungamornrat, Jaroon; Prachasaree, Woraphot (2021) - It can see in Fig. 6 that the axial strain of the bar-substrate system distinctly differs between the local model and a set of nonlocal strain gradient models, especially at the end of the nanowire under tensile load. 6 Nanowire axial strain versus distance along the nanowire -10 0 10 20 30 40 50 60 70 80 0 200 400 600 800 1000 N a n o w ir e a x ia l d is p la ce m en t (n m ) Distance along the nanowire (nm) Proposed bar model with surface effect Proposed bar model without surface effect Second order strain gradient nonlocal bar model with surface effect Second order strain gradient nonlocal bar model without surface effect Local bar model with surface effect Local bar model without surface effect -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 Keywords: effect; gradient; gradient model; model; n x; nanowire; order; strain; strain gradient; substrate; surface; u x
• TAGUCHI OPTIMIZATION OF MULTIPLE PERFORMANCE CHARACTERISTICS IN THE ELECTRICAL DISCHARGE MACHINING OF THE TIGR2 by Akıncıoğlu, Sıtkı (2022) - They investigated material wear loss, tool wear loss, and surface roughness values and successfully determined the optimum parameters for MRR, tool TWR, and surface roughness. The best value for average surface roughness was determined to be 3.29 µm obtained at 120 μs time-on, 8 A, and 40 μs time-off. ▪ According to the S/N ratios, the most suitable parameter values for MRR were A3B3C1, for TWR A1B3C1, for depth A3B3C1, and for surface roughness A1B1C1. ▪ Keywords: amperage; discharge; edm; machining; material; mrr; parameters; roughness; surface; surface roughness; taguchi; time; titanium; twr; values
• THE CERAMIC MODULAR HEAD IMPROVEMENT IN THE DESIGN OF A TOTAL HIP REPLACEMENT by Pakhaliuk, Vladimir; Poliakov, Aleksandr; Fedotov, Ivan (2021) - For ceramic head and liner: alumina ceramic (Al2O3) with Young's modulus E=380 GPa, Poisson's ratio is μ=0.22, ultimate strength in bending is σb=325 MPa. Dickinson, E.C., Sellenschloh, K., Morlock, M.M., 2019, Impact of stem taper damage on the fracture strength of ceramic heads with adapter sleeves, Clinical Biomechanics, 63, pp. Keywords: alloy; ceramic; design; head; hip; hole; joint; sleeve; stem; surface; thr
• A FRACTURE-INDUCED ADHESIVE WEAR CRITERION AND ITS APPLICATION TO THE SIMULATION OF WEAR PROCESS OF THE POINT CONTACTS UNDER MIXED LUBRICATION CONDITION by Cao, Hui; Tian, Yu; Meng, Yonggang (2021) - In addition, it can be observed that at a fixed position, the height changes with great randomness, for the reason that the thickness of wear element was assumed to be stochastic in the modeling, which is in accord with observations in common wear surfaces. After the test, total wear volume V in a period of friction time Tf of 5000 s was measured with a 3D profilometer as 8.18×105 μm3, and frictional work Wf was calculated according to the friction coefficient measured during the test as 11.654 J. Provided the statistical parameters for surface energy, work of adhesion and thickness of wear element are given as listed in Table 1, taking the wear element size as 1.17μm, we can calculate the values of Ac and Aw as 1.1μm2 and 1.076μm2 30 H. CAO, Y. TIAN, Y. MENG respectively, and volume, Vw, of a wear element with the mean thickness of 90nm is 0.0487μm3. Keywords: criterion; element; energy; fig; friction; lubrication; process; simulation; sliding; surface; wear; wear criterion; work
• NUMERICAL MODEL OF A LOCAL CONTACT OF A POLYMER NANOCOMPOSITE AND ITS EXPERIMENTAL VALIDATION by Dmitriev, Andrey I. (2021) - For comparison the simulation results were shown as individual points, which were obtained by averaging friction coefficient values over the stage of steady-state sliding. Since in our preliminary studies [22] it was not possible to obtain the required response of the hybrid PNC with varying the pv-factor in the present model for silica particles, the temperature dependence of the mechanical properties calculated by the molecular dynamics method was introduced [23, 24]. Keywords: automata; friction; hybrid; nanocomposite; particles; polymer; properties; silica; sliding; surface
• MESOSCALE DEFORMATION-INDUCED SURFACE PHENOMENA IN LOADED POLYCRYSTALS by Romanova, Varvara; Balokhonov, Ruslan; Zinovieva, Olga (2021) - Key words: Polycrystals, Free surface, Grain boundaries, Deformation-induced roughness, Microstructure-based calculations, Mesomechanics 1. INTRODUCTION The mechanical and physical properties of material surface layers are among the key factors determining the service life of machine parts and components. Mesoscale Deformation-Induced Surface Phenomena in Loaded Polycrystals 191 0 100 200 300 300 450 600 F re e s u rf a c e Distance below free surface, m mean maximum minimum -60 -30 0 30 -60 -30 0 30  e q M P a  3 3 M P a  2 2 M P a 300 450 600  1 1 , M P a a b c Fig. Keywords: deformation; fig; grain; mesoscale; plastic; polycrystalline; polycrystals; strain; stress; surface
• IMPROVING CORROSION RESISTANCE OF MAGNESIUM NANOCOMPOSITES BY USING ELECTROLESS NICKEL COATINGS by Banerjee, Sudip; Sarkar, Pujan; Sahoo, Prasanta (2022) - To enhance surface quality, sample surface should be polished properly. Study of anodic section is necessary to examine corrosion characteristics as anodic section mainly helps to understand transformation technique of material from sample surface Keywords: 2wc; alloy; az31; coating; corrosion; electroless; fig; heat; magnesium; resistance; sample; surface
• TRIBO-MECHANICAL CHARACTERIZATION OF ENB ALLOY COATINGS: EFFECT OF HEAT-TREATMENT TEMPERATURE AND SODIUM BOROHYDRIDE CONCENTRATION by Barman, Manik; Barman, Tapan Kumar; Sahoo, Prasanta (2025) - 5 XRD patterns of ENB coating in, (a) as-deposited, (b) deposited with 0.50 g/l NaBH4 and heat-treated, (c) deposited with 0.80 g/l NaBH4 and heat-treated, and (d) deposited with 1.10 g/l NaBH4 and heat-treated Crystallisation of ENB coatings starts just below 300°C of heat-treatment temperature ENB coatings also enhance the surface hardness of mild steel substrate Keywords: boron; coatings; concentration; enb; hardness; heat; nabh4; surface; treatment; wear
• BENEFICIAL EFFECT OF CU CONTENT AND AUSTEMPERING PARAMETERS ON THE HARDNESS AND CORROSION PROPERTIES OF AUSTEMPERED DUCTILE IRON (ADI) by Vrsalović, Ladislav; Čatipović, Nikša; Gudić, Senka; Kožuh, Stjepan (2025) - 6 Results of linear polarization measurements a) and potentiodynamic polarization measurements b) for ductile iron samples in 0.5M NaCl solution at 20°C Fig. 7 Results of linear polarization measurements a) and potentiodynamic polarization measurements b) for austempered ductile iron samples in 0.5M NaCl solution at 20°C a) b) 42 L. VRSALOVIĆ, N. ČATIPOVIĆ, S. GUDIĆ, S. KOŽUH In Figs. 6 a) and 7 a) it can be seen that the slope of the linear parts of the curves rises with the increase in the mass percentage of Cu in DI and ADI samples. Hence, the decrease of Q, with the increase of Cu content and heat treatment, leads to the corresponding increase in the thickness of the surface layer and additionally prevents iron corrosion at EOC. Keywords: adi; austempering; content; corrosion; ductile; hardness; iron; properties; resistance; samples; surface
• REVERSE ENGINEERING OF THE HUMAN FIBULA BY USING METHOD OF ANATOMICAL FEATURES by Tufegdžić, Milica; Trajanović, Miroslav; Vitković, Nikola; Arsić, Stojanka (2014) - Creating 3D surface model of the human fibula The polygonal model of upper extremity of the fibula is intersected with the planes obtained by rotation of the plane passing through the mechanical axis of the bone and ACF. 5 3D surface model of the fibula We have created a polygonal model at 3D surface model with the aim of analyzing the differences between the RE model and the initial STL polygonal model. Keywords: axis; engineering; extremity; fibula; fig; model; reverse; surface

• DESIGN AND OPTIMIZATION OF THE VARIABLE-DENSITY LATTICE STRUCTURE BASED ON LOAD PATHS by Wu, Fenghe; Lian, Hui; Pei, Guobin; Guo, Baosu; Wang, Zhaohua (2023) - First of all, the envelope model of any given structure should be established, and the load paths need to be visualized by the theory of load path. Load path [28, 29] is a concept for tracking transferred load within a structure starting from loading points and ending at supporting points, which has been studied in structural design in recent years Keywords: cells; density; design; fig; load; load paths; method; model; optimization; paths; stress; structure; unit
• SELECTION OF FORKLIFT UNIT FOR TRANSPORT HANDLING USING INTEGRATED MCDM UNDER NEUTROSOPHIC ENVIRONMENT by Chakraborty, Sayanta; Saha, Apu Kumar (2024) - Furthermore, the method of forklift selection criteria using industry expert responses and literature is a significant benefit of this suggested endeavor. The application of the proposed approach in forklift selection presented in Section 5 demonstrates the efficacy of projected integrated MCDM technique. Keywords: alternatives; criteria; decision; forklift; fucom; handling; making; mcdm; method; model; neutrosophic; selection; w w; warehouse
• CONDITION MONITORING OF ROLLER BEARING USING ENHANCED DEMPSTER/SHAFER EVIDENCE THEORY by Zhu, Xingtong; Huang, Minchuan; Chen, Ke (2025) - Deng, Z., Wang, J., 2020, Conflicting evidence combination method based on evidence distance and belief entropy, in 2020 IEEE International Conference on Networking, Sensing and Control (ICNSC), Nanjing, China, pp. Key words: Evidence combination, Generalized Jaccard coefficient, Falsity, Bearing Condition monitoring, Dempster-Shafer (D-S) Received: April 25, 2023 / Accepted August 11, 2023 Keywords: bearing; coefficient; condition; dempster; diagnosis; evidence; method; monitoring; probability; shafer; theory
• A GOOD INITIAL GUESS FOR APPROXIMATING NONLINEAR OSCILLATORS BY THE HOMOTOPY PERTURBATION METHOD by He, Ji-Huan; He, Chun-Hui; Alsolami, Abdulrahman Ali (2023) - Anjum, N., He, J.H., Ain, Q. T., Tian, D., 2021, Li-He’s modified homotopy perturbation method for doubly-clamped electrically actuated microbeams-based microelectromechanical system, Facta Universitatis Series Mechanical Engineering, 19(4), pp. Ji, Q.P., Wang, J., Lu, L.X., Ge, C.F., 2021, Li-He's modified homotopy perturbation method coupled with the energy method for the dropping shock response of a tangent nonlinear packaging system, Journal of Low Frequency Noise, Vibration and Active Control, 40(2) , pp.675-682. 17. Keywords: homotopy; method; perturbation
• DESIGN OF 3D MODEL OF CUSTOMIZED ANATOMICALLY ADJUSTED IMPLANTS by Manić, Miodrag; Stamenković, Zoran; Mitković, Milorad; Stojković, Miloš; Shephard, Duncan E.T. (2015) - Some examples of created 3D model of tibia‟s fracture are shown in Fig. The creation of geometrically accurate 3D models of human bones utilizes a number of different techniques and presents a unique challenge, because their geometry and form are very complex. Keywords: bone; design; fig; fracture; implants; method; model
• VIBRATION AND STABILITY OF A NONLINEAR NONLOCAL STRAIN-GRADIENT FG BEAM ON A VISCO-PASTERNAK FOUNDATION by Nešić, Nikola; Cajić, Milan; Karličić, Danilo; Lazarević, Mihailo; Adhikari, Sondipon (2025) - Ansari, R., Gholami, R., Hosseini, K., Sahmani, S., 2011, A sixth-order compact finite difference method for vibrational analysis of nanobeams embedded in an elastic medium based on nonlocal beam theory, Mathematical and Computer Modelling, 54(11-12), pp. Therefore, this study can be considered as a special case and natural extension of the work done by Nešić et al. in [27] since a special case of the visco-Pasternak foundation model without fractional derivatives is adopted and stability of periodic solutions analysis is performed. Keywords: amplitude; beam; conditions; fig; foundation; frequency; gradient; method; nonlinear; pasternak; solutions; stability; strain; theory; vibration
• EVALUATION OF GREEN ENERGY SOURCES: AN EXTENDED FUZZY-TODIM APPROACH BASED ON SCHWEIZER-SKLAR AND POWER AVERAGING OPERATORS by Bhowmik, Chiranjib; Zindani, Divya; Chatterjee, Prasenjit; Marinkovic, Dragan; Šliogerienė, Jūratė (2025) - Renewable energy sources do not produce the same level of carbon emissions as fossil fuels, which are a major contributor to climate change. The ranking of renewable energy sources in Canada has been investigated 630 C. BHOWMIK, D. ZINDANI, P. CHATTERJEE, D. MARINKOVIC, J ŠLIOGERIENĖ by Nigim et al. Keywords: alternatives; approach; cost; criteria; decision; energy; energy sources; evaluation; f f; g f; g p; green; making; method; p f; p p; power; selection; solar
• APPLICATION OF THE DIBR II – ROUGH MABAC DECISION-MAKING MODEL FOR RANKING METHODS AND TECHNIQUES OF LEAN ORGANIZATION SYSTEMS MANAGEMENT IN THE PROCESS OF TECHNICAL MAINTENANCE by Božanić, Darko; Epler, Igor; Puška, Adis; Biswas, Sanjib; Marinković, Dragan; Koprivica, Stefan (2024) - Existing technological TM documentation for the most of the SPTS is “poor” regarding maintenance process management. The authors deem that Lean maintenance management, with its principles and methods, can provide good solutions, applicable in the practice of facility maintenance. Keywords: coefficients; criteria; decision; maintenance; making; management; method; model; n w; ranking; step; w w; weight
• INVESTIGATION OF INDUSTRY 5.0 HURDLES AND THEIR MITIGATION TACTICS IN EMERGING ECONOMIES BY TODIM ARITHMETIC AND GEOMETRIC AGGREGATION OPERATORS IN SINGLE VALUE NEUTROSOPHIC ENVIRONMENT by Deivanayagampillai, Nagarajan; Jacob, Kavikumar; Vellapalayam Manohar, Gobinath; Broumi, Said (2023) - Industry 5.0 is designed to link and converse with a variety of systems from other industries as well as a variety of people. Despite important fields like hotels, training, medical services and pharmaceuticals, power generation, and human- centric viewpoints being examined in relation to the implementation and influence of Industry 5.0 from a scientific viewpoint, to our understanding none of the researches was concentrated on barriers that industries can inevitably experience while incorporating Industry 5.0 [23]. Keywords: barriers; criteria; data; decision; future; group; human; industry; journal; making; manufacturing; method; mitigation; multi; neutrosophic; obstacles; robots; security; sets; study; systems; technology; todim
• A NEW CRITERIA IMPORTANCE ASSESSMENT (CIMAS) METHOD IN MULTI-CRITERIA GROUP DECISION-MAKING: CRITERIA EVALUATION FOR SUPPLIER SELECTION by Bošković, Sara; Jovčić, Stefan; Simic, Vladimir; Švadlenka, Libor; Dobrodolac, Momčilo; Bacanin, Nebojša (2025) - In the next section, given the noticeable similarity between the two methods, the paper’s authors coupled the newly proposed method with the CRITIC one to obtain hybrid criteria weights that should be utilized further in decision-making. Sharifi, H., Shahram, H., Milaghardan, A., Esmaeily, A., Mojaradi, B., Naseri, F., 2012, Forest fire hazard modeling using hybrid AHP and fuzzy AHP methods using MODIS sensor, Proc. 2012 IEEE International Geoscience and Remote Sensing Symposium, Munich, pp. Keywords: assessment; cimas; criteria; critic; decision; experts; importance; making; method; weights
• DRONE SELECTION FOR FOREST SURVEILLANCE AND FIRE DETECTION USING INTERVAL VALUED NEUTROSOPHIC EDAS METHOD by Gül, Alize Yaprak; Cakmak, Emre; Karakas, Atiye Ece (2025) - Regarding the drone selection problem, Hristozov and Zlateva [7] introduced a performance mapping model as a concept model for drone selection in specific disaster conditions to aid the drone selection decision process. Hristozov, S., Zlateva, P., 2018, Concept model for drone selection in specific disaster conditions, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 42, pp. Keywords: criteria; detection; drone; fire; forest; ivn; method; neutrosophic; selection; − 𝐹; − 𝑇; 𝐹 𝐿; 𝐹 𝑈; 𝐼 𝐿; 𝐼 𝑈; 𝐿 𝑁(𝑥; 𝐿 𝑎; 𝐿 𝑏; 𝐿 𝑖𝑗𝑘; 𝐿 𝑘; 𝑇 𝐿; 𝑇 𝑈; 𝑈 𝑁(𝑥; 𝑈 𝑎; 𝑈 𝑏; 𝑈 𝑖𝑗𝐴; 𝑈 𝑘
• APPLICATION OF HYBRID DIBR-FUCOM-LMAW-BONFERRONI-GREY-EDAS MODEL IN MULTICRITERIA DECISION-MAKING by Radovanović, Marko; Božanić, Darko; Tešić, Duško; Puška, Adis; Hezam, Ibrahim M.; Jana, Chiranjibe (2023) - Grey EDAS method FUCOM method The FUCOM method is one of the newer methods. Keywords: application; coefficients; criteria; decision; dibr; edas; fucom; grey; lmaw; making; method; model; selection; table; weight
• PICTURE-HESITANT FUZZY-BASED DUAL-NORMALIZED MULTIPLE AGGREGATIONS FOR MATERIAL SELECTION IN A LIFT-BASED CONVERTER by Kang, Daekook; Suvitha, Krishnan; Sandra, Michael; Pamucar, Dragan; Simic, Vladimir; Narayanamoorthy, Samayan (2024) - Farhadinia, B., Xu, Z., 2021, Developing the comparison techniques of probabilistic hesitant fuzzy elements in multiple criteria decision making, Soft Computing, 25, pp. 331-342. 37. Sahoo, S.K., Goswami, S.S., 2023, A comprehensive review of multiple criteria decision-making (MCDM) Methods: advancements, applications, and future directions, Decision Making Advances, 1(1), pp. 25-48. 11. Keywords: approach; criteria; decision; desktop; energy; fuzzy; lift; making; material; method; selection; wecs
• COMPREHENSIVE DISTANCE-BASED RANKING METHOD FOR EVALUATING HYDRAULIC CONVERTERS IN TIDAL STREAM TURBINES UTILIZING PICTURE FERMATEAN FUZZY SET by Kang, Daekook; Suvitha, Krishnan; Narayanamoorthy, Samayan (2024) - Key words: Multi criteria decision making, Hydraulic converter, Tidal stream turbine, Picture Fermatean fuzzy set, Comprehensive distance based ranking 1. INTRODUCTION Tidal energy has a global capacity of 120 GW and is capable of generating up to 150 TWh annually [1]. Currently, tidal stream turbines are primarily developed using blade element momentum (PEM) theory, which is also used to investigate their hydrodynamic properties [5]. Keywords: approach; cobra; criteria; decision; energy; fuzzy; making; method; ranking; set; stream; tidal; turbine
• A MONITORING METHOD OF MILLING CHATTER BASED ON OPTIMIZED HYBRID NEURAL NETWORK WITH ATTENTION MECHANISM by Gao, Haining; Shen, Hongdan; Yue, Caixu; Li, Rongyi; Liang, Steven Y.; Wang, Yinlin; Liu, Wenfu; Yang, Yong (2025) - Sensor data acquisition in machining processes encompasses multiple signal components, including spindle rotation frequency with its harmonics, chatter frequencies, local outliers, and measurement noise. Using SFT technology to remove the spindle rotation frequency and its multiples from the vibration signal can effectively improve the significance of chatter features. Keywords: algorithm; chatter; cutting; data; detection; domain; feature; fig; frequency; machining; method; milling; missa; model; monitoring; signal; time
• OPTIMIZING NON-INVASIVE REMOTE SENSING FOR GEOTHERMAL EXPLORATION WITH T-SPHERICAL DUAL HESITANT FUZZY DECISION MODEL by Sandra, Michael; Narayanamoorthy, Samayan; Suvitha, Krishnan; Pamucar, Dragan; Kang, Daekook (2025) - Zhu, J., Hu, K., Lu, X., Huang, X., et al., 2015, A review of geothermal energy resources, development, and applications in China: Current status and prospects, Energy, 93, pp. Among RE sources, the transition to geothermal energy (GE) is particularly crucial due to its stability and reliability. Keywords: alternatives; approach; criteria; decision; energy; exploration; fuzzy; geothermal; making; mcdm; method; sensing; set; technique
• A ROLLING BEARING FAULT DIAGNOSIS METHOD BASED ON EXTREME LEARNING MACHINE OPTIMIZED BY IMPROVED WHALE OPTIMIZATION ALGORITHM by Li, Xin; Guo, Shiliang; Sun, Dejie; Cao, Lijun; Li, Cong; Tian, Shuyao; Liu, Peng; Qi, Yadong (2025) - The diagnostic results of different fault diagnosis methods for Case 1 and Case 2 are shown in Table 7 and Table 8, respectively. Comparing the results in Tables 7 and 8, the IWOA-ELM model achieved the highest fault identification accuracy for both different types and levels of bearing fault diagnosis Table 7 Diagnosis results of different fault diagnosis methods for Case 1 Model Training accuracy rate Testing accuracy rate IWOA-ELM 98.83% 97.5% WOA-ELM 98.67% 95.5% GWO-ELM 98.33% 95.0% PSO-ELM 98.17% 95.0% ELM 98.17% 90.5% SVM 92.00% 91.25% Keywords: algorithm; bearing; diagnosis; elm; fault; fault diagnosis; iwoa; learning; machine; method; model; optimization; rolling; set; whale
• AUTONOMOUS CT REPLACEMENT METHOD FOR THE SKULL PROSTHESIS MODELLING by Rudek, Marcelo; Gumiel, Yohan Boneski; Canciglieri Jr, Osiris (2015) - Table I shows the recovered compatible slices for each testing CT image from patient#1. Li, H., Xie, Z., Ruan, S.,Wang, H., 2009, The Measurement and Analyses of Symmetry Characteristic of Human Skull Based on CT images. Keywords: bone; control; curve; descriptors; edge; fig; image; method; points; prosthesis; skull; slice
• A MODIFIED FREQUENCY FORMULATION FOR NONLINEAR MECHANICAL VIBRATIONS by He, Chun-Hui; He, Ji-Huan; Ma, Jinfeng; Alsolami, Abdulrahman Ali; Yang, Xiao-Jun (2025) - The paper elucidates the characteristics of nonlinear oscillators that contain quasi-linear terms arising in mechanical engineering. Analytical solutions for this type of nonlinear oscillator are often difficult to obtain; they may involve singular and discontinuous terms, which can make them significantly more difficult to obtain. Keywords: formulation; frequency; frequency formulation; method; nonlinear; oscillators; vibration
• DEVELOPMENT OF A FUZZY-BASED DECISION SUPPORT SYSTEM FOR SUSTAINABLE TRACTOR SELECTION IN GREEN PORTS by Yalçın, Galip Cihan (2025) - The primary objective of this study is to develop a decision support system (DSS) for the selection of tractors suitable for green port operations. Based on the findings, practical implications and recommendations were provided to support decision-making processes in green port operations. Keywords: criteria; decision; energy; green; h h; h vh; hamacher; hybrid; method; port; selection; terminal; tractor; vh aa; ą 𝐶ąţ; ̃ �; � ̃; 𝐶ąţ 𝐶ąţ
• FUZZY AHP - FUZZY MABAC MODEL FOR RANKING A COMBINED CONSTRUCTION MACHINE - BACKHOE LOADER by Božanić, Darko; Puška, Adis; Tešić, Duško; Štilić, Anđelka; Ullah, Kifayat; Muhsen, Yousif Raad; Hezam, Ibrahim M. (2025) - Finally, fuzzy weight coefficients for each criterion, calculated separately for each expert, are defuzzified using Eq. Bozbura, F.T., Beskese, A., Kahraman, C., 2007, Prioritization of human capital measurement indicators using fuzzy AHP, Expert Systems with Applications, 32, pp. 1100–1112. 51. Keywords: ahp; backhoe; construction; criteria; criterion; decision; fig; fuzzy; making; method; model; ranking; weight
• POSSIBILITIES OF USING MONTE CARLO METHOD FOR SOLVING MACHINING OPTIMIZATION PROBLEMS by Madić, Miloš; Radovanović, Miroslav (2014) - Monte Carlo method enables determination of a majority of solutions, Possibilities of Using Monte Carlo Method for Solving Machining Optimization Problems 35  Monte Carlo methods have been used for a long time but only in the last few decades, they have gained the status of fully rounded numerical methods. Keywords: carlo; carlo method; machining; machining optimization; method; monte; monte carlo; optimization; problems
• A NOVEL HYBRID METHOD FOR NON-TRADITIONAL MACHINING PROCESS SELECTION USING FACTOR RELATIONSHIP AND MULTI-ATTRIBUTIVE BORDER APPROXIMATION METHOD by Chatterjee, Prasenjit; Mondal, Supraksh; Boral, Soumava; Banerjee, Arnab; Chakraborty, Shankar (2017) - The weights of NTMP selection criteria were used to calculate overall scores for the possible NTMPs. Sadhu, A., Chakraborty, S., 2011, Non-traditional machining processes selection using data envelopment Analysis (DEA), Expert Systems with Applications, 38(7), pp. 8770-8781. 13. Keywords: chakraborty; criteria; decision; machining; matrix; method; ntmp; process; selection; table
• DETERMINATION OF THE WALL VARIABLES WITHIN THE ZONAL MODEL OF RADIATION INSIDE A PULVERIZED COAL-FIRED FURNACE by Crnomarković, Nenad; Belošević, Srđan; Nemoda, Stevan; Tomanović, Ivan; Milićević, Aleksandar (2018) - The model is based on division of furnace space into volume zones and furnace walls into surface zones [7]. Papers which describe determination of wall variables by numerical simulations when radiative heat exchange is solved by the zonal model are very rare. Keywords: ams; differences; furnace; heat; method; model; numerical; variables; wall; wall variables
• FAST NUMERICAL IMPLEMENTATION OF THE MDR TRANSFORMATIONS by Benad, Justus (2018) - For the tested examples, the proposed method gives more accurate results with the same number of discretization points than other tested numerical techniques. The maximum error of gk, wn, and pn with respect to the analytical solutions for g, w, and p decreases when the number of discretization points N is increased as can be seen in Fig. Keywords: method; numerical; transformations
• EDGE DETECTION PARAMETER OPTIMIZATION BASED ON THE GENETIC ALGORITHM FOR RAIL TRACK DETECTION by Pavlović, Milan; Nikolić, Vlastimir; Simonović, Miloš; Mitrović, Vladimir; Ćirić, Ivan (2019) - Deng, C., Wang, G., Yang, X., 2013, Image edge detection algorithm based on improved canny operator, Proc. International Conference on Wavelet Analysis and Pattern Recognition, pp. 168-172. Skokhan,M. H., 2014, An efficient approach for improving canny edge detection algorithm, International Journal of Advances in Engineering & Technology, 7, pp. 59-65. 28. Keywords: algorithm; detection; edge; edge detection; image; method; threshold; value
• APPLICATION OF THE PERFORMANCE SELECTION INDEX METHOD FOR SOLVING MACHINING MCDM PROBLEMS by Petković, Dušan; Madić, Miloš; Radovanović, Miroslav; Gečevska, Valentina (2017) - In open literature, solving machining MCDM problems using MCDM methods is mainly related to machinability of materials and selection of cutting fluids Past research investigated the applicability of a number of MCDM methods including graph theory and matrix approach (GTMA), technique for order preference by similarity to ideal solution (TOPSIS), weighted aggregated sum product assessment (WASPAS), and preference ranking organization method for enrichment evaluation (PROMETHEE). Keywords: case; criteria; cutting; machining; method; problems; psi; selection
• DEVELOPMENT OF A NEW HYBRID MULTI CRITERIA DECISION-MAKING METHOD FOR A CAR SELECTION SCENARIO by Ali, Yousaf; Mehmood, Bilal; Huzaifa, Muhammad; Yasir, Umair; Khan, Amin Ullah (2020) - 366 Y. ALI, B. MEHMOOD, M. HUZAIFA, U. YASIR, A. U. KHAN Table 5 Showing the importance weights and ratings for Fuzzy TOPSIS method Linguistic Variables Importance Weights Importance Ratings Low (0,0.1,0.3) (0,0,0.25) Medium (0.3,0.5,0.7) (0,0.25,0.5) Medium High (0.5,0.7,0.9) (0.25,0.5,0.75) High (0.7,0.9,1.0) (0.5,0.75,1.0) Very High (0.9,1.0,1.0) (0.75,1.0,1.0) FCF-TOPSIS Model This model will be a unique combination of FUCOM and Fuzzy TOPSIS techniques. Keywords: ahp; car; criteria; decision; making; mcdm; method; results; selection; technique; topsis; weights
• A HYBRID LBWA - IR-MAIRCA MULTI-CRITERIA DECISION-MAKING MODEL FOR DETERMINATION OF CONSTRUCTIVE ELEMENTS OF WEAPONS by Božanić, Darko; Ranđelović, Aca; Radovanović, Marko; Tešić, Duško (2020) - This is a significant characteristic of the MAIRCA method considering to a certain extent the omnipresent subjectivity of decision-makers while defining entrance parameters for weight coefficient criteria calculations. Ţiţović, M., Pamučar, D., 2019, New model for determining criteria weights: Level Based Weight Assessment (LBWA) model, Decision Making: Applications in Management and Engineering, 2(2), pp. 126-137. 12. Keywords: alternatives; criteria; decision; irn; mairca; method; model; number; weapons; weight; y y
• LI-HE’S MODIFIED HOMOTOPY PERTURBATION METHOD FOR DOUBLY-CLAMPED ELECTRICALLY ACTUATED MICROBEAMS-BASED MICROELECTROMECHANICAL SYSTEM by Anjum, Naveed; He, Ji-Huan; Ain, Qura Tul; Tian, Dan (2021) -    − = = = (31) 4 3 5 7 2 4 2 1 1 1 0 3 4 0 3 5 0 3 6 0 1 3 0 0 2 3 0 0 4 0 0 2 3 2 4 5 2 6 0 0 5 0 0 0 0 6 0 0 0 0 1 0 0 0 2 2 2 2 2 3 0 0 0 0 0 0 2 0 0 0 0 (6 3 ) (20 5 ) (42 7 ) (4 2 2 ) (12 4 b b b b b b b b b b b b b b b    − − − − − − − +       + + + + + + +       + + + +                                    2 3 4 0 0 0 0 0 08 ) 0  − − − −  −  −  +  +  +  +   (36) 3 5 7 3 2 5 23 4 3 5 3 6 54 2 7 2 3 2 5 2 3 4 5 46 1 2 1 2 5 21 459 4 16 64 4 16 189 5 9 45 64 4 16 4 16 b b b b b b bb A A A A A b b b b b A A A A A   = − − − −  Keywords: b b; method; perturbation; − −; − ;  
• A NEW INTEGRATED GREY MCDM MODEL: CASE OF WAREHOUSE LOCATION SELECTION by Ulutaş, Alptekin; Balo, Figen; Sua, Lutfu; Demir, Ezgi; Topal, Ayşe; Jakovljević, Vladimir (2021) - The problem of warehouse location selection requires a crucial strategic decision plan for the businesses profitably. The problem of warehouse location selection has been discussed many times in the literature. Keywords: criteria; decision; gpiv; grey; location; location selection; mcdm; method; model; problem; selection; warehouse; warehouse location; weights
• D NUMBERS – FUCOM – FUZZY RAFSI MODEL FOR SELECTING THE GROUP OF CONSTRUCTION MACHINES FOR ENABLING MOBILITY by Božanić, Darko; Milić, Aleksandar; Tešić, Duško; Salabun, Wojciech; Pamučar, Dragan (2021) - i iQ A Q A Q A Q A= +  + (20) where Q(Ai) is the defuzzified value of fuzzy criteria function �̃�(Ai), Q(Ai)l the left distribution of the confidence interval of fuzzy criteria function �̃�(Ai), Q(Ai)u the right distribution of the confidence interval of fuzzy criteria function �̃�(Ai), and Q(Ai)s the value of fuzzy criteria function �̃�(Ai) where the membership degree is the highest, receptively, one. Step 5 Calculation of fuzzy criteria functions of alternatives �̃�(Ai) and ranking alternatives. Keywords: alternative; coefficients; construction; criteria; criterion; d numbers; decision; fucom; group; machines; making; method; model; numbers; selection; step; weight;  
• REGIONAL AIRCRAFT SELECTION WITH FUZZY PIPRECIA AND FUZZY MARCOS: A CASE STUDY OF THE TURKISH AIRLINE INDUSTRY by Bakır, Mahmut; Akan, Şahap; Özdemir, Emircan (2021) - Section 2 provides further information about the extant literature on regional airlines and aircraft selection criteria. Therefore, not only operational factors should be taken into consideration in regional aircraft selection, but these factors should also be evaluated together with passenger expectations. Keywords: aircraft; aircraft selection; airline; criteria; decision; fuzzy; marcos; matrix; method; piprecia; regional; selection; step; study
• AN EXTENDED SINGLE-VALUED NEUTROSOPHIC AHP AND MULTIMOORA METHOD TO EVALUATE THE OPTIMAL TRAINING AIRCRAFT FOR FLIGHT TRAINING ORGANIZATIONS by Karamaşa, Çağlar; Karabasevic, Darjan; Stanujkic, Dragisa; Kookhdan, Alireza Rezanezhad; Mishra, Arunodaya Raj; Ertürk, Mehmet (2021) - Zavadskas, E.K., Bausys, R., Juodagalviene, B., Sapranaviciene, I.G., 2017, Model for residential house element and material selection by neutrosophic MULTIMOORA method, Engineering Applications of Artificial Intelligence, 64, pp. For further research studies criteria related to training aircraft selection can be expanded and results can be compared to different multi-criteria decision-making methods. Keywords: ahp; aircraft; approach; criteria; decision; fuzzy; making; method; multimoora; neutrosophic; selection; sets; training; training aircraft; ̃ �; � ̃; 𝛼 �; 𝛽 �; 𝜃 �
• COMBINING THE SUITABILITY-FEASIBILITY-ACCEPTABILITY (SFA) STRATEGY WITH THE MCDM APPROACH by Hashemkhani Zolfani, Sarfaraz; Bazrafshan, Ramin; Akaberi, Parnian; Yazdani, Morteza; Ecer, Fatih (2021) - Puška et al. used multi-criteria analysis methods for ranking project management programs. This study proposed a combined approach of SFA with MCDM methods in a real case study. Keywords: alternatives; business; bwm; country; criteria; criterion; decision; feasibility; market; method; model; risk; sfa; step; strategy; study; table; target
• PROCUREMENT OPTIMIZATION BY SELECTING EFFICIENT SUPPLIERS USING DEA-FUCOM-COCOSO APPROACH AND SOLVING ORDER ALLOCATION PROBLEM by Pajić, Vukašin; Andrejić, Milan; Kilibarda, Milorad (2025) - [20] proposed a model for concurrent supplier selection model to minimize the purchasing cost and fuzzy quality loss considering process capability and assembled product specification. Key words: Procurement logistics, Supplier selection, Order allocation problem, FUCOM, CoCoSo 1. INTRODUCTION Procurement logistics is a segment of the supply chain that deals with the procurement of raw materials (products), inventory management, demand forecasting, selection of suppliers, tenders, etc. Keywords: cocoso; criteria; dea; fucom; method; model; order; paper; problem; procurement; selection; supplier

• ASSESSMENT OF SUSTAINABLE WASTEWATER TREATMENT TECHNOLOGIES USING INTERVAL-VALUED INTUITIONISTIC FUZZY DISTANCE MEASURE-BASED MAIRCA METHOD by Mishra, Arunodaya Raj; Rani, Pratibha; Cavallaro, Fausto; Alrasheedi, Adel Fahad (2023) - − − − −              (3) 1 1 1 1 1 ( ) , ( ) , 1 (1 ) , 1 (1 ) . − − − −              (4) Definition 2.5 Keywords: + −; criteria; decision; q r; treatment; wastewater; wwtt; − +; − −;  ;  ;  ;  
• ASSESSING PUBLIC ACCEPTANCE OF AUTONOMOUS VEHICLES USING A NOVEL IRN PIPRECIA - IRN AROMAN MODEL by Song, Meijing; Stević, Željko; Badi, Ibrahim; Marinković, Dragan; Lv, Yifei; Zhong, Kaiyang (2025) - ... ( ) ( ) ... ( ) n n n m m m mn m n C C C A IRN ш IRN ш IRN ш A IRN ш IRN ш IRN ш Ш A IRN ш IRN ш IRN ш       =       (11) where alternatives are denoted by m, and criteria by n. Step 2. Normalize the initial interval rough group matrix. Autonomous vehicles (AVs) have become a tangible presence on roads, indicating the emergence of a promising transportation technology for the future, possibly arriving sooner than anticipated. Keywords: acceptance; avs; criteria; irn; j j; public; transportation; vehicles; ш ш
• INTUITIONISTIC FUZZY DISTANCE MEASURE-BASED APPROACH FOR ADOPTING THE BLOCKCHAIN TECHNOLOGY IN THE LOGISTICS INDUSTRY by Rani, Pratibha; Mishra, Arunodaya Raj; Alshamrani, Ahmad M.; Alrasheedi, Adel Fahad; Atanasković, Predrag; Simic, Vladimir (2025) - Step 5: Compute the IF-ideal solution (IF-IS) matrix M = (Mj)1×t using ( ) ( ) 1 max ( ) , , ( , ) min ( ) , . The combination of objective and subjective weighting methods cannot only compute the criteria weights based on the quantitative data but also consider the DEs’ opinions during the assessment of criteria weights. Keywords: blockchain; criteria; decision; distance; k g; logistics; merec; model; weight
• BENCHMARK STUDY OF RE-IDENTIFICATION METHODS BASED ON STOCHASTIC FUZZY NORMALIZATION AND THEIR APPLICATION TO DECISION-MAKING PROBLEMS IN ENGINEERING by Kizielewicz, Bartłomiej; Sałabun, Wojciech (2025) - Sałabun proposed this approach to estimate the accuracy of TOPSIS normalization methods [37]. Sałabun, W., 2013, The mean error estimation of TOPSIS method using a fuzzy reference models, Journal of Theoretical and Applied Computer Science, 7(3), pp. Keywords: criteria; decision; identification; mabac; making; mcda; methods; model; normalization; reference; stfn; study; topsis; values
• INTUITIONISTIC FUZZY MACONT METHOD FOR LOGISTICS 4.0 BASED CIRCULAR ECONOMY INTERESTED REGIONS ASSESSMENT IN THE AGRI-FOOD SECTOR by Mishra, Arunodaya Raj; Rani, Pratibha; Pamucar, Dragan; Alshamrani, Ahmad M.; Alrasheedi, Adel Fahad (2025) - = (μl, νl), l = 1, 2, …, t, and wl lies between 0 and 1, and w1+w2+…+wt =1.  = + − f) ( ) ( )( )1 1 11 1 , , 0,       = − −  g) ( ) ( )( )1 1 1,1 1 , 0. Keywords: criteria; fuzzy; score; v v;  ;  
• ASSESSMENT OF THE QUALITY INSPECTORS FOR THE RAILWAY MANUFACTURING INDUSTRY IN INTERVAL-VALUED Q-RUNG ORTHOPAIR FUZZY ENVIRONMENT by Görçün, Ömer Faruk; Durmuş, Cem Niyazi; Çanakçıoğlu, Mustafa (2025) - EH VVH EH EH M VVH EH M EH EH A4 DM1 H VH VH H MH VH H H VH H MH VH MH H A4 DM2 H VVH VVH VH H VH H VH VVH H MH VVH MH H A4 DM3 H VVH VVH VVH H VH H VH VVH H MH VVH MH H A4 DM4 H VVH VVH VVH H VH H VH VVH H MH VVH MH H A4 DM5 MH VVH VVH VVH H VH H H VVH H MH VVH MH MH A5 DM1 EH H H VVH VVH VVH EH EH H EH VVH H VVH EH A5 DM2 EH H H VH VVH VVH VVH VVH H VVH VH H VH VVH A5 DM3 EH MH MH VH VVH VVH VVH VVH MH VVH VVH MH VVH VVH A5 DM4 VVH VH VVH VH VVH A2 DM4 VVH H H VH H VVH VH VVH H VVH VH H VH VVH A2 DM5 H H H VH H VVH VH VVH H VVH H H VH H A3 Keywords: criteria; decision; h h; h vh; industry; ivq; making; manufacturing; mh h; model; processes; quality; railway; results; rof; table; vvh mh; vvh vvh;  
• MODELS FOR INTRALAMINAR DAMAGE AND FAILURE OF FIBER COMPOSITES - A REVIEW by Rohwer, Klaus (2016) - As an important physical effect the difference between fiber failure and inter-fiber failure is considered. Fiber failure (FF) is modeled by a maximum stress criterion in fiber direction with some modifications accounting for effects of transverse stresses, whereas matrix failure is predicted using a quadratic interaction of axial, transverse, and shear stresses. Keywords: compos; composites; compressive; criteria; criterion; damage; failure; fiber; laminates; matrix; model; sci; shear; strength; stress; technol; transverse
• COMPARISON OF THREE FUZZY MCDM METHODS FOR SOLVING THE SUPPLIER SELECTION PROBLEM by Petrović, Goran; Mihajlović, Jelena; Ćojbašić, Žarko; Madić, Miloš; Marinković, Dragan (2019) - This section will briefly review the previous research studies focused on the use of fuzzy MCDM methods for supplier evaluation and selection. To overcome those challenges, fuzzy MCDM methods are ideal solutions. Keywords: alternative; criteria; decision; evaluation; methods; selection; step; supplier; topsis; values; ̃ ̃
• A VIKOR AND TOPSIS FOCUSED REANALYSIS OF THE MADM METHODS BASED ON LOGARITHMIC NORMALIZATION by Hashemkhani Zolfani, Sarfaraz; Yazdani, Morteza; Pamucar, Dragan; Zarate, Pascale (2020) - Chatterjee, P., Chakraborty, S., 2014, Investigating the effect of normalization norms in flexible manufacturing system selection using multi criteria decision making methods, Journal of engineering science and technology review, 7(3), pp. 141-150. It is a fact that the selection of normalization methods has a direct effect on the results. Keywords: alternatives; criteria; decision; madm; matrix; max; methods; normalization; results; topsis; vikor
• A CLOUD TOPSIS MODEL FOR GREEN SUPPLIER SELECTION by Ramakrishnan, Krishnapuram Ravi; Chakraborty, Shankar (2020) - S1 G VG G VG 0.8455 0.0378 0.0108 S2 F G G G 0.6432 0.0356 0.0074 S3 G VG VG G 0.8455 0.0265 0.0108 S4 G VG G VG 0.8455 0.0265 0.0108 S5 VG VG VG VG 1 0.0265 0.0130 C23 S1 G G G G 0.6910 0.0429 0.0080 S2 G G G G 0.6910 0.0265 0.0080 S3 G G G G 0.6910 0.0232 0.0080 S4 VG G G VG 0.8455 0.0356 0.0108 S5 VG VG VG VG 1 0.0410 0.0130 C32 (+) S1 VP P P VP 0.1545 0.0356 0.0108 S2 P F P F 0.4045 0.0233 0.0067 S3 F F F G 0.5477 0.0265 0.0059 S4 G VG G F 0.7205 0.0410 0.0090 S5 VG VG G F 0.7977 0.0356 0.0103 C33 (+) S1 F G VG G 0.7205 0.0233 0.0090 S2 G F F F 0.5477 0.0265 0.0059 S3 P F P F 0.4045 0.0410 0.0067 S4 F G VG VG 0.7977 0.0356 0.0103 S5 G F VG G 0.7205 0.0410 0.0089 C34 (+) Keywords: cloud; criteria; f f; g f; g g; g p; g vg; green; s1 g; s2 g; s3 g; s4 g; s4 vg; s5 g; selection; supplier; vg f
• PRIORITIZING THE WEIGHTS OF THE EVALUATION CRITERIA UNDER FUZZINESS: THE FUZZY FULL CONSISTENCY METHOD – FUCOM-F by Pamucar, Dragan; Ecer, Fatih (2020) - Seeing their direct effect on the solution, weighting methods that most accurately determine criteria weights are needed. Criterion weights can be determined subjectively or objectively. Keywords: criteria; cw w; k k; k w; u l; w w; w ;  
• GREEN SUPPLIER SELECTION BASED ON THE INFORMATION SYSTEM PERFORMANCE EVALUATION USING THE INTEGRATED BEST-WORST METHOD by Fazlollahtabar, Hamed; Kazemitash, Navid (2021) - Galankashi, M.R., Chegeni, A., Soleimanynanadegany, A., Memari, A., Anjomshoae, A., Helmi, S. A., Dargi, A., 2015, Prioritizing green supplier selection criteria using fuzzy analytical network process, Procedia CIRP, 26, pp. The next step is measuring the ISs' performance in association with green supplier selection which is gained by the experts' opinions. Keywords: criteria; decision; green; gss; information; iss; performance; perspective; selection; sub; supplier; supplier selection; weights
• TOWARDS RELIABLE DECISION-MAKING IN THE GREEN URBAN TRANSPORT DOMAIN by Shekhovtsov, Andrii; Więckowski, Jakub; Kizielewicz, Bartłomiej; Sałabun, Wojciech (2022) - 1 Visualization of the positional rankings comparison of used MCDA methods It is worth noting that for the results obtained for the PROMETHEE II method, the preference values for the alternatives A7, A8 and A9 were the same, as they were for the pair of alternatives A1 and A5. There are often used methods belonging to the multi-criteria decision analysis (MCDA) methods in support systems, which work on the basis of evaluating a set of alternatives and giving them preference values thus assessing their quality concerning other options [4]. Keywords: alternatives; compromise; criteria; decision; mcda; methods; rank; rankings; similarity; values

• IMPROVING THE MECHANICAL CHARACTERISTICS OF THE 3D PRINTING OBJECTS USING HYBRID MACHINE LEARNING APPROACH by Milićević, Ivan; Popović, Marko; Dučić, Nedeljko; Vujičić, Vojislav; Stepanić, Pavle; Marinković, Dragan; Ćojbašić, Žarko (2022) - Improving the Mechanical Characteristics of the 3D Printing Objects Using Hybrid Machine Learning... 9 3.2 Optimization of 3D printing process parameters Genetic algorithms (GA) are a search technique that uses heuristic optimization methods to find an exact or approximate solution simulating the mechanism of natural evolution. Furthermore, printed part highly depends on process parameters, position and orientation of the printed part, and performances of the 3D printer which prints the part. Keywords: algorithm; fdm; network; optimization; parameters; printing; process; process parameters; strength; tensile
• MODELLING AND SIMULATION OF NONLINEAR DYNAMIC FLOW FIELD AND TEMPERATURE FIELD OF DEPYROGENATION TUNNEL by Wang, Yizhi; Zhu, Quanmin; Huang, Tao; Han, Xiaodong; Lin, Min (2024) - In this research, the flow field and temperature field simulation, calculation and analysis are creatively carried out in terms of depyrogenation tunnel, a very popular preparation drying- sterilization equipment in pharmaceutical processes with strong dynamic characteristics. Front size; b) Reverse side The flow field and temperature field distribution of section X=0.683 m were shown in Fig. Keywords: airflow; depyrogenation; drying; field; flow; heating; mesh; process; simulation; sterilization; temperature; temperature field; tunnel; velocity
• DYNAMIC BEHAVIOUR OF HOT WATER BOILERS DURING START UP by Todorović, Milena; Živković, Dragoljub; Mančić, Marko; Milčić, Dragan (2014) - 1 Combustion chamber efficiency depending on a wide range of boiler load [11] 88 M. TODOROVIĆ, D. ŢIVKOVIĆ, M. MANĈIĆ, D. MILĈIĆ 4. COEFFICIENT OF EXCESS AIR RATIO DURING THE BOILER'S START UP Coefficient of excess air during the boiler's start-up r is defined by the following assumptions [11]:  starting up the boiler is carried out at constant sub-pressure in the combustion chamber, which is equal to the vacuum, which is maintained in the stationary mode, and,  suction of the waste air from the atmosphere, which depends on non-hermetic boiler's properties, is considered as a constant value that is determined by the constructive scheme of the fuel supply and technical condition of the boiler. 2 Characteristics of excess air ratio depending on a wide range of boiler load [11] 5. Keywords: boiler; chamber; combustion; combustion chamber; heat; load; process; r r; start; water
• AUTOMATION OF DESIGN OF MODULAR UPPER LIMB PROSTHESES by Gorski, Filip; Komorowska, Olga; Zawadzki, Przemysław; Kuczko, Wiesław; Żukowska, Magdalena; Łabudzki, Remigiusz; Păcurar, Răzvan (2025) - Colombo, G., Bertetti, M., Bonacini, D., Magrassi, G., 2006, Reverse engineering and rapid prototyping techniques to innovate prosthesis socket design, Three-Dimensional Image Capture and Applications VII, 6056, pp. Amputation can occur at various levels, influencing treatment, rehabilitation, and prosthesis design [2-4]. Keywords: automation; cad; design; engineering; fig; forearm; limb; model; patient; process; prosthesis; variants
• RELIABILITY PREDICTION AND PROCESS PARAMETER OPTIMIZATION OF WELDED JOINTS: ARTIFICIAL NEURAL NETWORK AND FUZZY LOGIC by Gokulachandran, Jaganathan; Thenarasu, Mohanavelu; Pothkanoori, Bhadrinath; Narassima, Madhavarao Seshadri; Tirkolaee, Erfan Babaee (2025) - Tan, X., Wang, C., Xie, K., Xie, L., Wang, P., 2023, Research on fatigue reliability prediction model and structural improvement of welded drive axle housing based on master S-N curve method, Quality and Reliability Engineering International, 39(1), pp. A significant gap exists in the literature regarding integrating these ML models specifically for weld reliability prediction using real-world parameter variations such as weld current, speed, and angle. Keywords: ann; current; data; et al; failure; input; joints; model; network; neural; optimization; parameters; prediction; process; reliability; reliability prediction; strength; time; values; weld; welding
• SOFTWARE TOOL FOR LASER CUTTING PROCESS CONTROL – SOLVING REAL INDUSTRIAL CASE STUDIES by Madić, Miloš; Kovačević, Marko; Radovanović, Miroslav; Blagojević, Vladislav (2016) - 2 Complexity of laser cutting process as MIMO machining process As shown in Fig. 2, a set of different parameters affect laser cutting process, wherein the character of the influence of certain parameter can be different taking into account interaction with other process parameters. Keywords: co2; control; cutting; laser; parameters; process; software
• THE PATH TOWARDS ACHIEVING A LEAN SIX SIGMA COMPANY USING THE EXAMPLE OF THE SHINWON COMPANY IN SERBIA by Mladenović, Srđan; Milosavljević, Peđa; Milojević, Nevena; Pavlović, Dragan; Todorović, Milena (2016) - PRODUCTION PROCESS IN THE SHINWON COMPANY In this paper we will particularly pay attention to the production process as one of the basic processes of implementation in the company. The Pareto diagram visually shows which production process is the most commonly interrupted, or which process is the most critical (Fig. 3). Keywords: company; diagram; process; production; quality; sigma
• DEEP DRAWING TECHNOLOGY WITH WALL IRONING IN MASS PACKAGING INDUSTRY by Ranđelović, Saša; Milutinović, Mladomir; Blagojević, Vladislav (2017) - The production process for aluminum cans is already technologically very advanced, and therefore it is useful to have the most information possible on material and tooling in order to optimize it. Lee M.S., Kim S.J., Lim O.D., Kang C.G., 2016, The effect process parameters on epoxy flow behavior and formability with CR340/CFRP composites by different laminating in deep drawing process, J. Mater. Keywords: aluminum; cans; design; die; drawing; fig; force; ironing; mass; process; production; punch; wall
• GEOMETRICAL MODELS OF MANDIBLE FRACTURE AND PLATE IMPLANT by Husain, Karim; Rashid, Mohammed; Vitković, Nikola; Mitić, Jelena; Milovanović, Jelena; Stojković, Miloš (2018) - 3 Surface model of the mandible with defined fracture model and parametric points Predictive methods enable the creation of bone geometrical models by using various types of parametric (statistical) models. Keywords: bone; fracture; implant; mandible; model; parametric; plate; process
• DETERMINATION OF RESIDUAL STRESS IN THE RAIL WHEEL DURING QUENCHING PROCESS BY FEM SIMULATION by Milošević, Miloš; Miltenović, Aleksandar; Banić, Milan; Tomić, Miša (2017) - Determination of the residual stress in the rail wheel is important for understanding the damage mechanisms and their influence on the proper work of rail wheels. The residual stresses in rail wheels can be caused mechanically due to wheel/rail operation, or due to the press fitting process of a bandage wheel, as well as during the quenching process. Keywords: fig; process; rail; rail wheel; stress; temperature; wheel
• CASTING IMPROVEMENT BASED ON METAHEURISTIC OPTIMIZATION AND NUMERICAL SIMULATION by Radiša, Radomir; Dučić, Nedeljko; Manasijević, Srećko; Marković, Nemanja; Ćojbašić, Žarko (2017) - This paper presents the use of metaheuristic optimization techniques to support the improvement of casting process. This paper presents a methodology for improvement of casting process, demonstrated on the problem of design and optimization of the feeder’s geometry in the process of casting Pelton turbine bucket. Keywords: casting; feeder; fig; optimization; process; r r; results; simulation; solidification
• BICYCLE HELMET DESIGN AND THE VIRTUAL VALIDATION OF THE IMPACT, AERODYNAMICS AND PRODUCTION PROCESS by Boshevski, Bojan; Mircheski, Ile (2017) - The meshed model of bicycle helmet Fig. Expanded polystyrene (EPS) foam is material with a good energy absorption characteristic which is used for bicycle helmet. Keywords: bicycle helmet; design; fig; head; helmet; impact; process; product; testing
• A NEW WINCH CONSTRUCTION FOR SMOOTH CABLE WINDING/UNWINDING by Filipović, Mirjana; Kevac, Ljubinko (2017) - From this moment on, the system for smooth cable winding/unwinding on the winch enters the period when angle i has values defined by: These systems can have completely different applications and also different constructions but their characteristic is that they consist of one or more sub-systems for cable winding/unwinding. Keywords: angle; cable; cable winding; fig; process; smooth; unwinding; winch; winding
• PARAMETERS FORECASTING OF LASER WELDING BY THE ARTIFICIAL INTELLIGENCE TECHNIQUES by Nikolić, Vlastimir; Milovančević, Miloš; Petković, Dalibor; Jocić, Dejan; Savić, Milan (2018) - Zhao, Y., Zhu, K., Ma, Q., Shang, Q., Huang, J., Yang, D., 2016, Plasma behavior and control with small diameter assisting gas nozzle during CO2 laser welding, Journal of Materials Processing Technology, 237, pp. Chen, L., Zhou, L., Tang, C., Huang, W., Wang, C., Hu, X., Wang, J., Yan, F., Wang, X., Jiang, Z., Shao, X., 2014, Study of laser butt welding of SUS301L stainless steel and welding joint analysis, The International Journal of Advanced Manufacturing Technology, 73(9-12), pp. 1695-1704. 8. Keywords: elm; forecasting; input; laser; parameters; process; welding
• TEACHING-LEARNING-BASED PARAMETRIC OPTIMIZATION OF AN ELECTRICAL DISCHARGE MACHINING PROCESS by Kumar, Vidyapati; Diyaley, Sunny; Chakraborty, Shankar (2020) - 6 Effects of EDM process parameters on MRR 294 V. KUMAR, S. DIYALEY, S. CHAKRABORTY Ramprabhu, T., Savsani, V., Parsana, S., Radadia, N., Sheth, M., Sheth, N., 2018,Multi-objective optimization of EDM process parameters by using passing vehicle search (PVS) algorithm, Defect and Diffusion Forum, 382, pp. Keywords: algorithm; current; discharge; edm; edm process; machining; mrr; optimization; parameters; process; process parameters; time; tlbo; tool
• EDM PROCESS PARAMETER OPTIMIZATION FOR EFFICIENT MACHINING OF INCONEL-718 by Singh, Ankit; Ghadai, Ranjan Kumar; Kalita, Kanak; Chatterjee, Prasenjit; Pamučar, Dragan (2020) - Effect of process parameters on MRR The main effect plot of MRR for various process parameters is shown in Fig. Effect of process parameters on TWR The main effect plot of TWR for various process parameters is shown in Fig. Keywords: current; decision; edm; machining; mrr; optimization; parameters; process; topsis; twr; weight
• MATHEMATICAL MODELLING OF THE CO2 LASER CUTTING PROCESS USING GENETIC PROGRAMMING by Madić, Miloš; Gostimirović, Marin; Rodić, Dragan; Radovanović, Miroslav; Coteaţă, Margareta (2022) - Ozaki, H., Koike, Y., Kawakami, H., Suzuki, J., 2012, Cutting properties of austenitic stainless steel by using laser cutting process without assist gas, Advances in Optical Technologies, 2012, 234321. Abhimanyu, N., Satyanarayana, B., 2016, Optimization of CNC laser cutting process parameters, International Advanced Research Journal in Science, Engineering and Technology, 3(5), pp. 206-210. Keywords: cutting; kerf; laser; laser cutting; mathematical; model; parameters; power; process; speed; taper
• OPTIMAL FEED RATE CONTROL STRATEGIES FOR FRICTION DRILLING by Stryczek, Roman; Błaszczak, Paweł (2020) - Manufacturers of friction drilling tools provide their customers with recommended feed rates which are constant in subsequent drilling phases. Adaptive control of the friction drilling process Because it is very rare that friction drilling machine tools are equipped with a dynamometer to measure thrust and torque, the assumed strategy of adaptive feed rate control uses the load on the feed drives and the spindle as input data. Keywords: control; cycle; drilling; drilling process; drive; energy; feed; feed rate; fig; friction; friction drilling; load; process; tool; torque
• MODELING OF TITANIUM ALLOYS PLASTIC FLOW IN LINEAR FRICTION WELDING by Skripnyak, Vladimir A.; Iokhim, Kristina; Skripnyak, Evgeniya; Skripnyak, Vladimir V. (2021) - In the near-surface layers of the bodies being welded, titanium alloys can be deformed in the mode of severe plastic deformation. The hcp-bcc phase transition of titanium alloys upon heating in the LFW process necessitates an increase in the cyclic loading time to obtain a welded joint. Keywords: alloys; friction; lfw; material; plastic; process; skripnyak; stress; titanium; titanium alloys; welding; zone
• MULTI-SCALE NUMERICAL APPROACH TO THE POLYMER FILLING PROCESS IN THE WELD LINE REGION by Li, Xuejuan; Wang, Dan; Saeed, Tareq (2022) - We ( : ) ( 1)re t  −  = − −  ΛΛ u Λ Λ D S Λ (6) where We is the Weissenberg number; I denotes the unit tensor; D is the deformation rate tensor; r is the relaxation time ratio; α is a material parameter, defining the amount of anisotropy; ν= 2/q, where q is the amount of arms at the end of a backbone. We We t t U t t           =            u S Λ Multi-Scale Numerical Approach to the Polymer Filling Process in the Weld Line Region 369 and 4 4 2 ( 1) ( )2 ˆ ( ( )( 1) 1) Re Re ˆ ˆˆ ˆ ˆ ˆ( , , ; ) : We( ( ) ) 2We[ : ] 1 1 3 (1 3 tr( )) 3 ˆWe ( : ) ( 1) T H H p U re            −    − − +   −   +           =  −  −   +   −   +  + − −  −       −  − −  Λ u u D τ u u S u S S u u S D S S Λ S S Λ S S S Keywords: filling; h h; line; polymer; process; region; scale; weld
• DEVELOPMENT OF A PROCEDURE FOR INCREASING THE ACCURACY OF THE RECONSTRUCTION AND TRIANGULATION PROCESS OF THE CRANIAL VAULT GEOMETRY FOR ADDITIVE MANUFACTURING by Turek, Paweł; Budzik, Grzegorz (2025) - Van Eijnatten, M., Berger, F.H., De Graaf, P., Koivisto, J., Forouzanfar, T., Wolff, J., 2017, Influence of CT parameters on STL model accuracy, Rapid Prototyping Journal, 23(4), pp. A challenging task is to improve the accuracy of digital model geometry at the stage of acquisition and data processing. Keywords: accuracy; cranial; data; fig; geometry; models; procedure; process; reconstruction

• DETECTION OF NONLOCAL CALIBRATION PARAMETERS AND RANGE INTERACTION FOR DYNAMICS OF FGM POROUS NANOBEAMS UNDER ELECTRO-MECHANICAL LOADS by Jankowski, Piotr (2022) - Karami and Janghorban [61] proposed novel higher-order shear deformation beam theory and studied natural vibration of functionally graded nanobeam using nonlocal strain gradient theory. Liu, H., Lv, Z., Wu, H., 2019, Nonlinear free vibration of geometrically imperfect functionally graded sandwich nanobeams based on nonlocal strain gradient theory, Composite Structures, 214, pp. Keywords: nanobeam; parameters; theory; vibration;  
• IN SILICO ANALYSIS OF AN ARTICULAR CARTILAGE REGENERATIVE REHABILITATION UNDER CONDITIONS OF MESENCHYMAL STEM CELLS IMPLANTATION AND THEIR MECHANICAL STIMULATION by Poliakov, Aleksandr; Pakhaliuk, Vladimir (2024) - r   = + − = , (11) where r is the number of mathematical model variable parameters. Thus, the task is to determine the set of model parameters at which the highest density of ECM (m), chondrocytes (CC) and MSC (CS) on the articular surface in the area of the defect is achieved over a certain period of time. Keywords: c c; cartilage; cells; defect; density; ecm; model; msc; parameters; rehabilitation; tissue
• EVALUATION OF INNER SHEAR RESISTANCE OF LAYERS FROM MINERAL GRANULAR MATERIALS by Fischer, Szabolcs (2023) -  the application of used railway ballast material (i.e., mainly from crushed stone) that is not exclusively sharp-edged; the use of dry, wet, and oily state materials;  testing of new and recycled granular mixtures; measurement of different granular mixtures;  investigation of layer structures on foundations (bases) with different load-bearing capacity values; use of different granular layer thicknesses; use of additional geosynthetics with different characteristics; performing vertical load on the top surface of the above layer; performing dynamic tests;  application of DEM and/or FEM-DEM considering static and dynamic loads. The CGM1 type granular protection layer material was mixed in the laboratory, except for 0/1 mm fraction (sand); every fraction was transported from the same quarry as CSBCG 0/56 and RB. Keywords: accuracy; engineering; geogrid; layers; load; materials; parameters; plane; railway; reinforcement; resistance; results; shear; shearing; test; track; transport; transportation; values
• A COMPARATIVE STUDY ON MECHANICAL PERFORMANCE OF PLA, ABS, AND CF MATERIALS FABRICATED BY FUSED DEPOSITION MODELING by Alparslan, Cem; Bayraktar, Şenol; Gupta, Kapil (2024) - While the fracture surfaces of PLA samples were smooth, and the layer lines were evident. In PLA samples, the highest YS (18.95 MPa) and TS (20.45 MPa) were obtained in the hexagon pattern and LT of 0.15 mm, while the lowest YS value (10.17 MPa) was measured in line pattern and LT of 0.35 mm, and the TS value was (8.48 MPa) in the triangle pattern and LT of 0.35 mm (Fig 6a). Keywords: abs; fdm; fig; fracture; materials; parameters; pla; printing; properties; samples; tensile
• GENERAL APROACH TO MODELING NONLINEAR AMPLITUDE AND FREQUENCY DEPENDENT HYSTERESIS EFFECTS BASED ON EXPERIMENTAL RESULTS by Heine, Christopher; Plagemann, Markus (2014) - These dependencies could be described by linear functions and constant model parameters. 4 Hysteresis curves for different excitation amplitudes (Type I) Keywords: -0.5; amplitude; dependence; fig; frequency; hysteresis; model; parameters
• DETERMINATION OF IMPORTANT PARAMETERS FOR PATENT APPLICATIONS by Marković, Dušan; Petković, Dalibor; Nikolić, Vlastimir; Milovančević, Miloš; Denić, Nebojša (2017) - 307 - 313 DOI: 10.22190/FUME170511014M © 2017 by University of Niš, Serbia | Creative Commons Licence: CC BY-NC-ND Original scientific paper 1DETERMINATION OF IMPORTANT PARAMETERS FOR PATENT APPLICATIONS This research study is an analysis of patent applications based on different input parameters. Keywords: applications; input; parameters; patent; patent applications; r&d; table
• FAST USER ACTIVITY PHASE RECOGNITION FOR THE SAFETY OF TRANSFEMORAL PROSTHESIS CONTROL by Poliakov, Aleksandr; Pakhaliuk, Vladimir (2020) - 8 Images of user activity phases: a) 71; b) cs; c) 63 Fast User Activity Phase Recognition for the Safety of Transfemoral Prosthesis Control 149 4. The results of the tests showed that the proposed method is not inferior to neural network and neural fuzzy methods in efficiency, but it requires significantly less computer time to solve the problems of phase activity recognition. Keywords: activity; activity phase; parameters; phase; point; recognition; space; state; tfp; user;  
• FEM BASED PARAMETRIC DESIGN STUDY OF TIRE PROFILE USING DEDICATED CAD MODEL AND TRANSLATION CODE by Korunović, Nikola; Stojković, Miloš; Mišić, Dragan; Trajanović, Miroslav (2014) - Tire models are inflated to the pressure of 2 bar (0.2 N\mm 2 ). 4. CONCLUSION A parametric design study of tire profile shape and belt width is presented in order to illustrate the use of the proposed approach to the FEM application in tire design. Keywords: cad; design; finite; model; parameters; parametric; study; tire
• MATHEMATICAL MODELING OF THE INFLUENCE PARAMETERS DURING FORMATION AND PROPAGATION OF THE LÜDERS BANDS by Brlić, Tin; Rešković, Stoja; Jurković, Zoran; Janeš, Gordan (2020) - A higher stress amount indicates a more pronounced surface roughness in this area during Lüders band propagation which is a significant problem during forming of microalloyed steels. Values of temperature changes and their distribution in Lüders bands can be determined with high accuracy using thermography. Keywords: formation; lüders; lüders bands; models; parameters; propagation; ɛmax; δtmax
• INFLUENCE OF A BIRD MODEL SHAPE ON THE BIRD IMPACT PARAMETERS by Cwiklak, Janusz (2020) - The existing research concerning bird models of a complex shape mostly analyzed events, in which the bird mass was from 0.3 kg to 3.6 kg [5, 8, 10]. The analysis time was taken to be from 10 to 20 ms depending from a kind of bird model. Keywords: bird; bird model; fig; impact; material; model; parameters; shape; stork; velocity; windshield
• CALIBRATION OF MATERIAL MODELS FOR THE HUMAN CERVICAL SPINE LIGAMENT BEHAVIOUR USING A GENETIC ALGORITHM by Franulović, Marina; Marković, Kristina; Trajkovski, Ana (2021) - The calibration of material models was based on the genetic algorithm procedure in order to make possible optimization of material parameters identification for the chosen models. 𝜆∗ 𝜆 ≥ 𝜆∗ 4 1)2 1 3 2 1 ( 2 5 6 1 2 1 1 2 0 [ ] 1 cc c e c c c               −       = − + −         − + +             (4) 𝜎 = { 0 𝐶1 (𝜆 2 − 1 𝜆 )+𝐶3[𝑒 𝐶4(𝜆−1) − 1] 𝐶1 (𝜆 2 − 1 𝜆 ) + 𝐶5𝜆 + 𝐶6 𝜆 < 1 1 < 𝜆 < 𝜆∗ 𝜆 ≥ 𝜆∗ Values c1 to c6 represent unknown variables - material parameters which have to be identified by the numerical procedures in order to calibrate material model, σ is stress value, λ represents the current stretch value and λ* represents the stretch value on the transition point between toe and linear regions (marked as A in Fig. 1). Keywords: algorithm; behavior; function; material; material models; models; number; parameters; population; ratio; results; value
• NEW EXPERIMENTAL INVESTIGATIONS ON THE DIETERICH-RUINA FRICTION LAW by Grzemba, Birthe (2015) - This method is still used for the identification of DRF law parameters for specific material pairings under given load and temperatures [5 6, 20]. The DRF law states that the coefficient of friction  depends on the relative velocity v and the contact history, represented by an internal state variable . Several examples for the use of internal variables in friction laws can be found in [13, 14]. Keywords: dieterich; drf; friction; law; parameters; ruina; slip; stick; velocity
• INTERPRETING THE MEANING OF GEOMETRIC FEATURES BASED ON THE SIMILARITIES BETWEEN ASSOCIATIONS OF SEMANTIC NETWORK by Trifunović, Milan; Stojković, Miloš; Trajanović, Miroslav; Mišić, Dragan; Manić, Miodrag (2014) - This implicit connection be- tween association members and context to which this association belongs is determined by the values of association parameters that are appropriate for given context (Fig. 2). c. ASM creates association between concepts CPTX and CPTN with the deter- mined values of association parameters. Keywords: asm; association; concepts; context; cptn; cptx; parameters; type
• OPTIMAL SYNTHESIS OF A MANIPULATOR USING TWO COMPETITIVE METHODS by Pavlović, Jovan; Jovanović, Miomir Lj.; Milojević, Andrija (2014) - These methods use a fixed interval of indetermination (H), where the field of change of independent variables 1 2 3 4{ , , , }z z z z z is divided by the selected number of points equal to the number of sub-areas. D c b c D b            (22) Coordinates of linkage O4 : 2 2 12 23 12 23 1 1 23 12 4 1(1,2) 2 2 1 1 ( ) ( ) 2 2 2 X X X X c b Y Y X F D D          (23) 1 2 2 23 12 12 23 1 1 23 12 4 1(1,2) 2 2 1 ( ) ( ) 2 2 2 Y Y Y Y c b X X Y F D D         (24) Bucket tilt angle for the current value of arm slope β is computed as: 4 12 4 12 ( ) Y Y arctg X X      (25) Keywords: function; mechanism; optimization; parameters

• PREDICTION OF RESPONSES IN A CNC MILLING OPERATION USING RANDOM FOREST REGRESSOR by Bhattacharya, Shibaprasad; Chakraborty, Shankar (2023) - Thus, modeling of a machining operation and prediction of the corresponding responses using a non-parametric machine learning technique with a small dataset is quite challenging, but the proposed RF regressor yields satisfactory results even with a small experimental dataset for CNC face milling operation. Decision tree regressor Being a highly unstable technique, a small change in the dataset may cause a significant change in the developed tree structure. Keywords: decision; learning; machine; milling; number; operation; prediction; regressor; responses; training

• DETECTION PROCESS OF ENERGY LOSS IN ELECTRIC RAILWAY VEHICLES by Fischer, Szabolcs; Kocsis Szürke, Szabolcs (2023) - The affecting factors regarding energy consumption can be categorized into three main groups: (i) infrastructure effects, (ii) transportation organization effects, and (iii) external environmental impact [9]. 2. METHODOLOGY OF POSSIBILITIES FOR OPTIMIZING ENERGY CONSUMPTION 2.1. Keywords: braking; case; consumption; data; energy; energy consumption; fig; kwh; optimization; railway; section; speed; time; train
• MIXED-FLOW PUMP OPTIMISATION AND FLOW CHARACTERISTICS BASED ON THE ‘DUAL CARBON’ GOALS by Chen, Minjia; Luo, Xingqi; Chen, Wanbo; Feng, Jianjun; Wang, Xiaohang (2025) - [19-21] conducted a multi-parameter optimisation design of the impeller and guide vane of mixed flow pumps using CFD technology. Figure 15 shows the pressure distribution of the impeller under design flow conditions and high flow conditions. Keywords: blade; conditions; design; distribution; efficiency; energy; fig; flow; flow pump; guide; head; impeller; optimisation; performance; pressure; pump
• MULTI-OBJECTIVE OPTIMIZATION AND PERFORMANCE ANALYSIS OF BIMORPH MAGNETO-ELECTRO-ELASTIC ENERGY HARVESTERS by Moory Shirbani, Meisam; Alavi, Sayed Ehsan (2025) -       =   = =  − +  =        + + + −       − + − +           (26) 2( ) ( ) ( ) ( , ) ( ) c M EM E rel r MM r R j L V t V t w x t W x j    + − = (27) where the parameters nME and nEM represent the ratios of VM(t) to VE(t) and vice versa, respectively, have been obtained as follows: 31 31 31 31 1 ( ) ( ) 1 ( ) ( ) M E M M M C M EM R EM ME M M EM E M ME M c f NR j C j e RV n n V j f NR e R j L           + −     = = =  − +  (28) Finally, by having the expressions for VE(t) and VM(t), the analytical relationships for the harvested electrical power PE(t), the harvested magnetic power PM(t), and the total harvested magneto-electric power PME(t) by the MEE energy harvesting beam can be obtained. Wei, C., Jing, X., 2017, A comprehensive review on vibration energy harvesting: modelling and realization, Renewable and Sustainable Energy Reviews, 74, pp. 1-18. 2. Keywords: connection; energy; h h; mee; optimization; parallel; power; r r; series
• RECENT DEVELOPMENTS IN NATURAL FIBER HYBRID COMPOSITES FOR BALLISTIC APPLICATIONS: A COMPREHENSIVE REVIEW OF MECHANISMS AND FAILURE CRITERIA by Devarajan, Balaji; Lakshminarasimhan, Rajeshkumar; Murugan, Aravindh; Rangappa, Sanjay M.; Siengchin, Suchart; Marinkovic, Dragan (2024) - Matrix and Interface System An important function of a matrix in ballistic composites is to distribute stresses between fibers. Warp and weft directional fibers absorb most energy during ballistic impacts in 3D woven hybrid interlocking composites [70, 71]. Keywords: absorption; applications; aramid; armor; behavior; composites; effect; energy; engineering; epoxy; experimental; fabric; failure; fiber; fiber composites; hybrid; impact; journal; kevlar; laminates; layer; materials; matrix; natural; performance; projectile; properties; resistance; structures; thickness; velocity
• SUSTAINABLE COMPOSITE MATERIALS FOR ELECTRIC VEHICLE APPLICATIONS: A COMPREHENSIVE REVIEW by Singh, Manoj Kumar; Palaniappan, Sathish Kumar; Suyambulingam, Indran; Rangappa, Sanjay Mavinkere; Siengchin, Suchart; Marinkovic, Dragan (2025) - 4 shows an overview of various impacts of internal combustion engine vehicles (ICEVs), hybrid electric vehicles (HEVs), and battery electric vehicles (BEVs) during LCA using the electricity mix of 2015 [88]. Despite a challenging year for the car market in 2020, the sales of electric vehicles, including battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs), nearly doubled in 2021, reaching a total of 6.6 million units (Fig. 5). Keywords: applications; automotive; battery; components; composites; cycle; electric; energy; evs; fiber; impact; industry; life; lightweight; manufacturing; market; materials; natural; performance; polymer; production; research; review; technology; use; vehicle; weight
• SCENARIO-LEVEL HIERARCHICAL ENERGY MANAGEMENT CONTROL STRATEGY FOR HYBRID ELECTRIC VEHICLE by Xiao, Feng; Zhang, Ruiqiang; Qi, Chunyang (2025) - [17] cleverly integrated deep reinforcement learning and model predictive control techniques, significantly improving the energy efficiency and economics of electric vehicles. This innovative hybrid approach, particularly the precise optimization of the speed control strategy for electric vehicles through the model predictive control algorithm, not only brings technological innovation to the current electric vehicle field, but also provides valuable theoretical guidance and practical examples for the future planning of autonomous. Keywords: algorithm; car; control; control strategy; driver; driving; electric; energy; following; function; hybrid; learning; management; model; reward; scenario; speed; strategy; vehicle
• SOLAR VACUUM TUBE INTEGRATED SEAWATER DISTILLATION - AN EXPERIMENTAL STUDY by Selimli, Selcuk; Recebli, Ziyaddin; Ulker, Semra (2016) - Ketrez, M., Usta, H., Cay, Y., 2012, Heat pump assisted solar energy water distillation, Journal of Sanitary Engineering, 127, pp. Aybar, H.S., 2006, Mathematical modelling of and inclined solar water distillation system, Desalination, 190, pp. Keywords: distillation; energy; glass; heat; solar; tube; vacuum; water
• THE EFFECT OF ENVIRONMENTAL INDICATORS TO THE WASTE TREATMENT SCENARIOS RANKING by Milutinović, Biljana; Stefanović, Gordana; Vučković, Goran; Tomić, Mladen; Đekić, Petar (2015) - Different waste treatment scenarios have different effects on the environment, which is expressed through a variety of environmental indicators. Four experiments were conducted in order to assess the influence of environmental indicators: the first experiment was done using four indicators, the second by using seven indicators, the third experiment by using nine indicators, and the fourth experiment by twelve indicators. Keywords: air; emission; energy; environment; indicators; ranking; scenario; treatment; waste; water
• NUMERICAL COMPUTATION AND PREDICTION OF ELECTRICITY CONSUMPTION IN TOBACCO INDUSTRY by Laković, Mirjana; Pavlović, Ivan; Banjac, Miloš; Jović, Milica; Mančić, Marko (2017) - On the other hand, electricity demand depends on many factors such as temperature, humidity, precipitation, wind speed, cloud cover and amount of light. The total installed power of the electric motor is 1.2 MW. Numerical Computation and Prediction of Electricity Consumption in Tobacco Industry 459 2. PHASES OF FORECAST AND SIMULATION Probabilistic forecasting of electricity demand is an important task for all active market participants. Keywords: consumption; demand; electricity; energy; forecasting; model; time
• INVESTIGATION OF THE ENERGY RECOVERY POTENTIALS IN VENTILATION SYSTEMS IN DIFFERENT CLIMATES by Kassai, Miklos; Poleczky, Laszlo; Al-Hyari, Laith; Kajtar, Laszlo; Nyers, Jozsef (2018) - Consequently, in addition to an average energetic characterization, it is possible to determine the expectable minimum and maximum operating conditions, the range of heat recovery values as well. As the novelty of this research with the developed procedure drawn up in this study, the energetic possibilities of heat recovery under various climate and operating conditions may be examined in more detail and more realistically than with the methods and available information of current engineering practices. Keywords: air; average; data; energy; enthalpy; exhaust; fig; heat; recovery; time; total
• ON THE DISCRETIZATION OF A BISTABLE CANTILEVER BEAM WITH APPLICATION TO ENERGY HARVESTING by Noll, Max-Uwe; Lentz, Lukas; von Wagner, Utz (2019) - 2 Experimental setup with bistable cantilever beam excited by a shaker (left) and beam with magnets in detail (right) Cazottes, P., Fernandes, A., Pouget, J., Hafez, M., 2009, Bistable buckled beam: modeling of actuating force and experimental validations, Journal of Mechanical Design, 131(10), 101001. 17. Keywords: ansatz; beam; case; energy; excitation; fig; shapes; vibration
• DESIGN AND THERMAL PERFORMANCE OF THE SOLAR BIOMASS HYBRID DRYER FOR CASHEW DRYING by Dhanuskodi, Saravanan; Wilson, Vincent; Kumarasamy, Sudhakar (2014) - Variation of moisture content with drying time is shown in Fig.6. 6 Variation of moisture content with drying time 4.3. Keywords: air; biomass; cashew; collector; dryer; drying; efficiency; energy; hybrid; mode; solar; temperature
• ENERGY ANALYSIS OF REPOWERING STEAM POWER PLANTS BY FEED WATER HEATING by Mitrović, Dejan; Ignjatović, Marko; Stojanović, Branislav; Janevski, Jelena; Škundrić, Jovan (2022) - REPOWERING OPTIONS OF STEAM POWER PLANTS In the Republic of Serbia, electricity is dominantly (to a larger extent compared to other sources) produced in steam power plants, most of which have already surpassed their initial operation lifetime. Hosseinalipour, S.M., Mehrpanahi, A., 2009, Economical analysis of repowering steam power plants in comparison to constructing gas power plants, 7th national congress of energy, Iranian. Keywords: efficiency; energy; gas; gas turbine; heat; plant; power; production; repowering; steam; steam power; temperature; turbine
• EFFECTS OF VOLUME OF CARBON NANOTUBES ON THE ANGLED BALLISTIC IMPACT FOR CARBON KEVLAR HYBRID FABRICS by Randjbaran, Elias; Majid, Dayang L.; Zahari, Rizal; Sultan, Mohamed T. H.; Mazlan, Norkhairunnisa (2020) - The solution is based on the target material properties at high ballistic impact resistance, the inclined impact and the CNT volumes. Rastogi, S., Verma, A., Singh, V.K., 2020, Experimental response of nonwoven waste cellulose fabric– reinforced epoxy composites for high toughness and coating applications, Materials Performance and Characterization, 9(1), pp. 151-172. 31. Keywords: bird; carbon; cnt; cnts; composites; degrees; energy; epoxy; fiber; fig; hybrid; impact; journal; kevlar; limit; nanotubes; thickness
• EVOLUTION OF THE CARBON NANOTUBE BUNDLE STRUCTURE UNDER BIAXIAL AND SHEAR STRAINS by Rysaeva, Leysan Kh.; Bachurin, Dmitry V.; Murzaev, Ramil T.; Abdullina, Dina U.; Korznikova, Elena A.; Mulyukov, Radik R.; Dmitriev, Sergey V. (2020) - A new mechanism of carbon nanotube bundle shear deformation through cooperative, vortex-like displacements of nanotube cross sections is reported. Korznikova, E.A., Rysaeva, L.K., Savin, A.V., Soboleva, E.G., Ekomasov, E.G., Ilgamov, M.A., Dmitriev, S.V., 2019, Chain model for carbon nanotube bundle under plane strain conditions, Materials, 12(23), 3951. 54. Keywords: biaxial; bundle; carbon; cnt; cnts; compression; deformation; energy; fig; nanotube; shear; strain
• ON THE AFFERRANTE-CARBONE THEORY OF ULTRATOUGH TAPE PEELING by Ciavarella, Michele; McMeeking, Robert M.; Cricrì, Gabriele (2023) - (2) will predict the ratio of effective adhesion energies at fast peel rates versus slow rates, and the behavior in terms of effective adhesion energy may well be given by Eq. The enhancement of the apparent adhesion energy is thus non- monotonic and has a maximum at peeling rates for which ντ0/L ≈ 1. a) b) Fig. Keywords: adhesion; energy; model; peeling; rate; tape; viscoelastic
• THERMAL OSCILLATION ARISING IN A HEAT SHOCK OF A POROUS HIERARCHY AND ITS APPLICATION by Liu, Fujuan; Zhang, Ting; He, Chun-Hui; Tian, Dan (2022) - The frequency of heat flow oscillation is 0 0 0 0 0 2 2 Agyenim, F., Hewitt, N., Eames, P., Smyth, M., 2010, A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS), Renewable & Sustainable Energy Reviews, 14(2), pp. Keywords: change; cocoon; energy; frequency; heat; journal; liu; materials; shock; silkworm; temperature
• POTENTIAL STRAIN ENERGY SURFACES AT THE CRACK TIP VICINITY by Jovanović, Dragan (2014) - Finally, I have showed the comparison of stress and potential strain energy surfaces, which are based on the relations from the literature. Relevant limitations and specifications of the method are pointed out while evaluating the best fitting curves and the best fitting three-dimensional surfaces of stress components and potential strain energy. Keywords: crack; energy; strain;  ;  ;  ;  ;  ;  ;  

• ONE-DIMENSIONAL BIOLOGICAL MODEL OF SYNOVIAL JOINTS REGENERATIVE REHABILITATION IN OSTEOARTHRITIS by Popov, Valentin L.; Poliakov, Aleksandr; Pakhaliuk, Vladimir (2022) - [22, 23], to create and investigate various models of cartilage tissue within the framework of continuum mechanics. From the point of view of regenerative rehabilitation, of interest are studies that have studied the responses of cartilage tissue, cells, and molecules to the action of mechanical stimuli. Keywords: cartilage; cell; chondrocytes; concentration; conditions; defect; density; ecm; model; msc; rehabilitation; time; tissue; ℎ𝑜𝑢𝑟; 𝐶𝑆0; 𝑚𝑚3
• AN INTEGRATED OPTIMIZATION OF PRODUCTION AND PREVENTIVE MAINTENANCE SCHEDULING IN INDUSTRY 4.0 by Babaeimorad, Samane; Fattahi, Parviz; Fazlollahtabar, Hamed; Shafiee, Mahmood (2024) - In this paper, a new PM scheduling mathematical model is formulated for the integrated scheduling of parallel machine production and PM interventions such that the completion time as well as the expected cost are simultaneously minimized. Sloan, T. W., Shanthikumar, J.G., 2000, Combined production and maintenance scheduling for a multiple product, single- machine production system. Keywords: job; jobs; machine; maintenance; model; operations; production; scheduling; time
• EFFECT OF ISOTHERMAL AND ISOCHRONAL AGING ON THE MICROSTRUCTURE AND PRECIPITATE EVOLUTION IN BETA-QUENCHED N36 ZIRCONIUM ALLOY by Aldeen, Ali W.; Mahdi, Dina Y.; Zhongwei, Chen; Disher, Imad A.; Mohamad, Barhm (2025) - In comparison, the Ra of aging surface samples confirms a slight increase in roughness due to the precipitation of particles during the aging process. In this study, the effect of isothermal and isochronal aging is reported to investigate the precipitate evolution and recrystallization of N36 zirconium alloy after β-quenching. Keywords: aging; alloy; fig; grain; microstructure; phase; quenching; recrystallization; samples; spps; time
• A NOVEL DISCRETE RAT SWARM OPTIMIZATION ALGORITHM FOR THE QUADRATIC ASSIGNMENT PROBLEM by Mzili, Toufik; Mzili, Ilyass; Riffi, Mohammed Essaid; Pamucar, Dragan; Simic, Vladimir; Kurdi, Mohamed (2023) - Future research opportunities for the DRSO algorithm include incorporating additional heuristics or metaheuristics to improve performance, expanding its applicability to larger instances or other combinatorial optimization problems, and studying its behavior in greater detail to understand its strengths and limitations. However, in discrete optimization problems, these operators cannot be used in the same way because they are designed for continuous scenarios. Keywords: algorithm; assignment; assignment problem; discrete; drso; instances; optimization; optimization algorithm; problem; qap; rat; search; solution; swarm; time
• CARBON NANOTUBE UNDER PULSED PRESSURE by Ilgamov, Marat A.; Aitbaeva, Aigul A.; Pavlov, Igor S.; Dmitriev, Sergey V. (2024) - For (n, 0) CNTs with n > 15, in the regime of small-amplitude vibrations, the discrepancy between the continuum model and molecular dynamics calculations does not exceed 5% and decreases with increasing n. Key words: Carbon nanotube, Molecular dynamics, Shell theory, Pulsed pressure, Natural frequencies Received: August 20, 2023 / Corresponding author: Sergey V. Dmitriev Institute of Molecule and Crystal Physics, UFRC RAS, Oktyabrya Ave. 71, 450054 Ufa, Russia E-mail: dmitriev.sergey.v@gmail.com https://orcid.org/0000-0002-8766-8964 https://orcid.org/0000-0002-4735-1671 https://orcid.org/0000-0002-2666-4943 https://orcid.org/0000-0002-6744-4445 276 M. A. ILGAMOV, A. A. AITBAEVA, I. S. PAVLOV, S. V. DMITRIEV 1. INTRODUCTION Free and forced vibrations of carbon nanotubes (CNTs) have been analyzed in a number of studies [1-13] because they affect the operation of nano-devices such as sensors, actuators, etc. Keywords: carbon; cnt; dmitriev; dynamics; fig; harmonic; nanotube; pressure; ring; time
• DATA REPLICATION IN DISTRIBUTED SYSTEMS USING OLYMPIAD OPTIMIZATION ALGORITHM by Arasteh, Bahman; Bouyer, Asgarali; Ghanbarzadeh, Reza; Rouhi, Alireza; Nazeri Mehrabani, Mahsa; Tirkolaee, Erfan Babaee (2023) - Tu, M., Yen, I. L., 2014, Distributed replica placement algorithms for correlated data, The Journal of Supercomputing, 68(11), pp. 245-273. 13. To address the problems of placement and replacement of data replicas within distributed systems, the current study proposes a novel discrete optimizer algorithm. Keywords: access; algorithm; data; data items; fig; gwa; items; methods; ooa; optimization; performance; placement; problem; pso; replica; servers; sfla; systems; time; toc
• NUMERICAL STUDY OF A NON-NEWTONIAN PHASE CHANGE FLOW IN FINNED RECTANGULAR ENCLOSURES by Boujelbene, Mohamed; Mehryan, Seyed A.M.; Sheremet, Mikhail; Shahabadi, Mohammad; Elbashir, Nasrin B.M.; Ghalambaz, Mohammad (2025) - 16 Dependency of Nutotal on n for the cavity: (a) without fins, (b) with one fin, (c) with two fins, and (d) with three fins 7. CONCLUSIONS Numerical analysis of non-Newtonian PCM convective melting in a differentially- heated cavity with solid fins has been performed. Farahani, S.D., Farahani, A.D., Tayebzadeh, F., Mosavi, A.H., 2021, Melting of non-Newtonian phase change material in a finned triple-tube: Efficacy of non-uniform magnetic field, Case Studies in Thermal Engineering, 28, 101543. Keywords: cavity; change; fins; flow; heat; liquid; melting; newtonian; pcm; phase; study; time
• MECHANICAL RESPONSE OF LAYERED STRUCTURES WITH INTERNAL LAYERS FROM METAMATERIALS EXPOSED TO DYNAMIC LOADINGS by Skripnyak, Vladimir A.; Chirkov, Maxim; Skripnyak, Evgeniya; Skripnyak, Vladimir V. (2024) - Fig. 2 (c) shows the time changes in equivalent stresses in the zone with the maximum diameter of pentamode metamaterial frame element (curves (1), (3)) and in the joint zone of the frame elements (curves (2), (4)). These frequencies must satisfy the condition: fcycl > 0.25 vz (amp)/[H – m/(ρcF)], where H is the thickness of metamaterial interlayer, m is the mass of metamaterial interlayer, ρc is the mass density of material of metamaterial frame element, F if the square of metamaterial volume projection onto the base plate. Keywords: elements; fig; frame; interlayer; layer; loading; metamaterial; plate; results; skripnyak; structures; time
• EXPERIMENTAL STUDY ON CREEP LOADING OF POROUS COAL UNDER DIFFERENT INFLUENCING FACTORS by Zheng, Jiyu; Wang, Longkang (2024) - A constitutive model of creep deformation of rock materials is proposed by Shao et al. In addition, research on mathematical models for creep deformation, damage, and crack evolution of materials such as rocks can grasp relevant laws [18-21].The creep process under cyclic loading can cause the accumulation of damage to coal and rock, ultimately leading to the failure of coal and rock. Keywords: borehole; coal; creep; deformation; loading; stress; time
• AN APPROACH TO EFFICIENT FEM SIMULATIONS ON GRAPHICS PROCESSING UNITS USING CUDA by Nutti, Björn; Marinković, Dragan (2014) - In a rigorous co-rotational FEM formulation, a local reference frame would be typically defined at each element integration point as those points are used in the evaluation of element matrices and vectors. However, it still requires uncoalesced memory accessed for rotation matrices. Keywords: approach; block; element; fem; formulation; gpu; linear; matrices; matrix; memory; simulation; stiffness; time
• AUTOMOTIVE APPLICATIONS OF EVOLVING TAKAGI-SUGENO-KANG FUZZY MODELS by Precup, Radu-Emil; Preitl, Stefan; Bojan-Dragos, Claudia-Adina; Radac, Mircea-Bogdan; Szedlak-Stinean, Alexandra-Iulia; Hedrea, Elena-Lorena; Roman, Raul-Cristian (2017) - The examples of fuzzy models are validated against experimental results in case of the ABS and the first principles simulation results in the case of vehicle with the CVT. Precup, R.-E., Voisan, E.-I., Petriu, E.M., Radac, M.-B., Fedorovici, L.-O., 2015, Implementation of evolving fuzzy models of a nonlinear process, Proc. Keywords: algorithms; applications; control; data; fuzzy; ieee; input; kang; models; precup; r.-e; sugeno; systems; takagi; time
• DYNAMICAL BEHAVIOR OF A HEAT PUMP COAXIAL EVAPORATOR CONSIDERING THE PHASE BORDER’S IMPACT ON CONVERGENCE by Nyers, Arpad; Pek, Zoltan; Nyers, Jozsef (2018) - Rasmussen and Alleyne [5] developed an air to air heat pump system using a moving boundary-lumped parameter approach to the heat exchangers. Received April 24, 2018 / Accepted June 10, 2018 Corresponding author: Jozsef Nyers Obuda University, Doctoral School of Applied Informatics and Applied Mathematics, Budapest, Hungary E-mail: jnyers1@gmail.com 250 A. NYERS, Z. PEK, J. NYERS Several dynamic models of heat pumps have been developed but few of them dealt with the heat pump’s coaxial evaporator. Keywords: evaporator; heat; phase; pump; refrigerant; time; water
• MICROSTRUCTURE-BASED SIMULATIONS OF QUASISTATIC DEFORMATION USING AN EXPLICIT DYNAMIC APPROACH by Romanova, Varvara; Balokhonov, Ruslan; Emelianova, Evgeniya; Zinovieva, Olga; Zinoviev, Aleksandr (2019) - 2 Equivalent stress (a-c) and plastic strain fields (d-f) in the polycrystalline structure meshed with 100×20×100 (a, d), 200×40×200 (b, e) and 400×80×400 resolution (c, f) Explicit calculations of uniaxial tension have been performed for the models loaded at the same strain rate of 10 2 s -1 . The element-by-element comparison between plastic strain fields obtained in dynamic and static calculations (a) and the stress-strain curves calculated using an explicit dynamic approach at different load velocities (b) In the dynamic simulations of quasi-static deformation, where load velocities are artificially increased, it is important to use rate-independent constitutive models. Keywords: approach; deformation; fig; mesh; microstructure; numerical; rate; simulations; strain; stress; time
• ARTIFICIAL NEURAL NETWORK APPLICATION FOR THE TEMPORAL PROPERTIES OF ACOUSTIC PERCEPTION by Simonović, Miloš; Kovandžić, Marko; Nikolić, Vlastimir; Stojčić, Mihajlo; Knežević, Darko (2019) - Using artificial neural networks makes acoustic signal processing very comfortable from the mathematical point of view. In the experiment, artificial neural networks were chosen, as a proven pattern recognition tool, for processing acoustic signals [3]. Keywords: localization; network; perception; procedure; recognition; signal; sound; source; tdoa; time; training
• OPTIMIZATION OF MULTI-PASS FACE MILLING PARAMETERS USING METAHEURISTIC ALGORITHMS by Diyaley, Sunny; Chakraborty, Shankar (2019) - Finally, these metaheuristics are employed for multi-objective optimization of the considered multi-pass milling process while concurrently minimizing both the objectives. For multi-objective optimization of both the total production time and total production cost, the objective function of Eq. Keywords: algorithm; cost; cut; face; milling; min; objective; operation; optimization; pass; production; time; tool; total
• BUBBLE DYNAMICS-BASED MODELING OF THE CAVITATION DYNAMICS IN LUBRICATED CONTACTS by Geike, Thomas (2021) - Tensile stresses are reproduced in simulation models with bubble dynamics An overview of research results on the simulation of cavitation dynamics can be found in the publications [2,3]. To make BEM simulations with cavitation dynamics efficient, it is also advisable to undertake further studies of the negative squeeze motion regarding the relevance of terms (inertia, viscosity, surface tension). Keywords: bubble; cavitation; dynamics; equation; pressure; squeeze; tensile; time

• TOWARD A SMART ECOSYSTEM WITH AUTOMATED SERVICES by Baranovski, Igor; Stankovski, Stevan; Ostojić, Gordana; Nikolić, Vlastimir; Simonović, Miloš; Stanojević, Miloš (2022) - This is essential for predicting customer behavior, providing personalized service as well as troubleshooting smart service machines (e.g. vending machines). Understanding and predicting customer behavior is a very important feature of smart automated systems. Keywords: cloud; computing; customer; data; ecosystem; gas; iot; layer; network; self; service; smart; systems
• STUDY OF FRICTION COMPENSATION MODEL FOR MOBILE ROBOT’S JOINTS by Cao, Yanjie; Mohamad Nor, Norzalilah; Samad, Zahurin (2024) - Nevmerzhitskiy, M.N., Notkin, B.S., Vara, A.V., Zmeu, K.V., 2019, Friction model of industrial robot joint with temperature correction by example of KUKA KR10, Journal of Robotics, 2019, 6931563. 26. Iskandar, M., Wolf, S., 2019, Dynamic friction model with thermal and load dependency: modeling, compensation, and external force estimation, In 2019 International Conference on Robotics and Automation (ICRA), pp. Keywords: compensation; data; fig; friction; friction compensation; friction model; joint; mobile; model; network; robot; speed; torque
• ONTOLOGICAL FRAMEWORK FOR KNOWLEDGE MANAGEMENT IN ORTHOPEDIC SURGERY by Zdravković, Milan; Trajanović, Miroslav; Pavlović, Dragan (2015) - There exist plenty of anatomical ontologies, clinical ontologies or ontologies of other domains in medicine. Medical ontologies and electronic health records Keywords: data; domain; fracture; framework; information; knowledge; management; medical; ontologies; ontology; systems
• THE ROLE OF DIGITAL INFORMATION MODELS FOR HORIZONTAL AND VERTICAL INTERACTION IN INTELLIGENT PRODUCTION by Tomov, Pancho; Dimitrov, Lubomir (2019) - A well-established production and engineering system is one of the prerequisites for the normal operation of intelligent production systems. The Role of Digital Information Models for Horizontal and Vertical Interaction in Intelligent Production 403 These ERP systems are integrated with technological processes that are compatible with intelligent production systems. Keywords: data; development; fig; information; production; software; systems

• EFFECTS OF MONITORING SIGNAL HYSTERESIS ON SPEED REGULATION FOR THE AERO-DERIVATIVE GAS TURBINE by Zhao, Zhibin; Zhou, Wenjie; Liu, Peijun; Liu, Zhirui (2023) - From the perspective of development, gas turbine control system has experienced the stages from the mechanical hydraulic control, analog electronic control to digital electronic control [6]. When the monitoring signal hysteresis is coupled, the effect of pressure signal hysteresis is greater than that of speed signal hysteresis. Keywords: control; fig; fuel; gas; hysteresis; monitoring; quantity; signal; signal hysteresis; speed; speed signal; turbine
• METAHEURISTIC-BASED TUNING OF PROPORTIONAL-DERIVATIVE LEARNING RULES FOR PROPORTIONAL-INTEGRAL FUZZY CONTROLLERS IN TOWER CRANE SYSTEM PAYLOAD POSITION CONTROL by Precup, Radu-Emil; Roman, Raul-Cristian; Hedrea, Elena-Lorena; Petriu, Emil M.; Bojan-Dragos, Claudia-Adina; Szedlak-Stinean, Alexandra-Iulia (2024) - 1 Structures of fuzzy control systems with: direct PD learning rule with current control error (a) (adapted from [20]), direct PD learning rule with previous control error (b) (adapted from [21]), indirect PD learning rule (c) (adapted from [22]), and open- closed-loop PD learning rule (d) Preitl, S., Precup, R.-E., 1996, On the algorithmic design of a class of control systems based on providing the symmetry of open-loop Bode plots, Scientific Bulletin of UPT, Transactions on Automatic Control and Computer Science, 41(2), pp. Keywords: algorithms; control; control system; controllers; design; fig; ilc; learning; learning control; optimization; precup; r.-e; rule; systems
• THE GAIT SIMULATOR FOR LOWER LIMB EXOPROSTHESES – OVERVIEW AND FIRST MEASUREMENTS FOR COMPARISON OF MICROPROCESSOR CONTROLLED KNEE JOINTS by Thiele, Julius; Gallinger, Simon; Seufert, Peter; Kraft, Marc (2015) - Deviation between reference values and measured values At first, a comparison of the nominal values for simulator control and the measured actual values was conducted to assess the performance of the simulator control. This could be observed for the values of the ground reaction forces and the hip moment in the sagittal plane, which represents the main functional plane of prosthetic knee joints. Keywords: angle; control; fig; gait; knee; phase; simulator
• MODELLING AND CONTROL OF H-SHAPED RACING QUADCOPTER WITH TILTING PROPELLERS by Alkamachi, Ahmed; Ercelebi, Ergun (2017) - In addition to the above virtual control signals, rotor tilt angle α is used to control the forward/backward speed of the vehicle. With this tilting capability, the number of control inputs is increased to five (the four rotors spinning speeds plus the tilt angle). Keywords: b b; control; fig; hcopter; model; quadcopter; rotor; speed; tilt
• DECOUPLING CONTROL OF TITO SYSTEM SUPPORTED BY DOMINANT POLE PLACEMENT METHOD by Nedić, Novak N.; Prodanović, Saša Lj.; Dubonjić, Ljubiša M. (2017) - (7-9): 1 ( ) ( ) 0ii ig s k s   (7) 0      s KsKsK sss bsbsb ipd 11 2 1 01 2 2 3 01 2 2 aaa 1 (8) 3 2 2 2 2 1 0 2 1 0 1 1 1( a a a ) ( ) ( ) 0d p is s s s b s b s b K s K s K             (9) Equation (10) is a general form of the fourth-order characteristic equation. Another goal is to simplify the tuning procedure of PID controllers and enlarge the possibility for introducing the given approach into practice. Keywords: control; placement; pole; s s
• REMOTE CONTROL OF THE MECHATRONIC REDESIGNED SLIDER-CRANK MECHANISM IN SERVICE by Tomić, Miša; Milošević, Miloš; Tomić, Nevena; Pavlović, Nenad D.; Pavlović, Vukašin (2017) - Nagchaudhuri, A., 2002, Mechatronic redesign of slider crank mechanism, Proceedings of IMECE 2002 ASME International Mechanical Engineering Congress & Exposition, pp. In [15] a numerically comparative study on dynamic response of a planar slider–crank mechanism with two clearance joints between considering harmonic drive and link flexibility is conducted. Keywords: control; crank mechanism; fig; mechatronic; motion; motor; position; slider; velocity
• THE MONOSPIRAL MOTORISED CABLE REEL IN CRANE APPLICATIONS by Kostić, Vojkan; Mitrović, Nebojša; Banković, Bojan; Petronijević, Milutin (2017) - Due to the similar requirements for tension control, variable winding diameter and moment of inertia, individual experiences can be used to control cable reel drives [20]. Regardless of the way of realization, basic requirement for cable reel drive is maintaining a constant tensile force in the cable, which enables winding/ unwinding cable uniformly. Keywords: cable; cable reel; control; crane; drive; induction; motor; power; speed; torque; winding
• AUTOMATIC GENERATION OF THE PLC PROGRAMS FOR THE SEQUENTIAL CONTROL OF PNEUMATIC ACTUATORS by Blagojević, Vladislav; Ranđelović, Saša; Nikolić, Vlastimir; Dudić, Slobodan (2019) - If pneumatic actuators are used to perform the operations, these systems are called sequential control pneumatic systems. In pneumatic sequential control systems, the designation of the movement of actuators between only two end positions is:  Ci+, for the extend direction of movement for linear actuators and the right direction of movement for semi-rotary drives, and,  Keywords: actuator; automatic; control; movement; plc; program; step
• COMPUTED TORQUE CONTROL FOR A SPATIAL DISORIENTATION TRAINER by Vidaković, Jelena; Kvrgić, Vladimir; Lazarević, Mihailo; Stepanić, Pavle (2020) - Process and controller parameters for PI speed control are given in Table 1. The short-lasting high values of error in PI speed control for joint 2 at certain time instants are caused by sudden and large changes in load torque τLD2 in those instants. Keywords: control; controller; fig; joint; model; robot; sdt; speed; torque
• INFLUENCE OF PRESSURE OSCILLATIONS IN COMMON RAIL INJECTOR ON FUEL INJECTION RATE by Shatrov, Mikhail G.; Dunin, Andrey U.; Dushkin, Pavel V.; Yakovenko, Andrey L.; Golubkov, Leonid N.; Sinyavski, Vladimir V. (2020) - Fuel injection causes considerable oscillations of fuel pressure at the injector inlet. Fuel injection causes considerable pressure oscillations at the inlet of the injector. Keywords: bar; control; fig; fuel; fuel injection; injection; injector; oscillations; pressure; pressure oscillations; rate
• SPRING BASED ON FLAT PERMANENT MAGNETS: DESIGN, ANALYSIS AND USE IN VARIABLE STIFFNESS ACTUATOR by Kozakiewicz, Bartłomiej; Winiarski, Tomasz (2023) - SIMULATION There were three main goals of FEM analyses performed on magnetic spring models: verifying a choice of materials presented in Section 4, investigating an impact of magnets number, shape and arrangement on spring torque-angle characteristics and optimizing dimensions of spring used in experiments. A summary of previous achievements in constructing magnetic springs is presented in Section 2. Keywords: angle; characteristics; control; design; fig; magnets; output; section; shaft; spring; stiffness; torque

• LIMITING PROFILE OF AXISYMMETRIC INDENTER DUE TO THE INITIALLY DISPLACED DUAL-MOTION FRETTING WEAR by Li, Qiang (2016) - Recently the final worn shape of elastic indenters due to fretting wear was analytically solved using the method of dimensionality reduction. Recently, a new method known as that of dimensionality reduction (MDR) was applied to analyzing the process of fretting wear as well as its final ‘shake down’ state for arbitrary axisymmetric shape of elastic or viscoelastic indenter [9-11]. Keywords: fretting; indenter; limiting; profile; wear
• SIMULATION OF WEAR IN A SPHERICAL JOINT WITH A POLYMERIC COMPONENT OF THE TOTAL HIP REPLACEMENT CONSIDERING ACTIVITIES OF DAILY LIVING by Pakhaliuk, Vladimir; Poliakov, Aleksandr (2018) - And, finally, the least contribution to total wear (about 17%) pay in level walking, despite the longest duration of the action (44% of the total cycle time). 14 Graphs of linear wear during summarized ADL and for each the ADL contributed In Figs. Keywords: activities; adl; chair; fig; force; hip; joint; simulation; vector; wear
• TIRE WEAR PARTICLE HOT SPOTS – REVIEW OF INFLUENCING FACTORS by Pohrt, Roman (2019) - Some studies also report a negative correlation between mean trip speed and tire wear rate, meaning that slower driving cars experience more tire wear than faster driving cars [6, 38, 39]. Park, I., Kim, H., Lee, S., 2018, Characteristics of tire wear particles generated in a laboratory simulation of tire/road contact conditions, Journal of Aerosol Science, 124, pp. Keywords: environment; factors; force; particles; passenger; rate; report; road; tire; tire wear; vehicle; wear
• SYNERGISTIC TRIBOLOGICAL PROPERTIES OF SYNTHETIC MAGNESIUM SILICATE HYDROXIDE COMBINED WITH AMPHIPHILIC MOLECULES by Wang, Bin; Chang, Qiu Ying; Gao, Kai (2019) - Gulzar, M., Masjuki, H.H., Kalam, M.A., Varman, M., Zulkifli, N.W.M., Mufti, R.A., et al, 2016, Tribological performance of nanoparticles as lubricating oil additives, J Nanoparticle Res, 18, pp. Meanwhile, a dark tribofilm formed on the substrate surface when the experimental load increased to 600N. In Fig. 6, the EDS analyses of friction surfaces lubricated by oil+ MSH+ AMs show that the smooth worn surfaces under test condition of 200N mainly consist of Fe which agrees with EDS result of original substrate (Table 2). Keywords: ams; fig; friction; msh; nanoparticles; oil; properties; surfaces; synthetic; wear
• NUMERICAL IMPLEMENTATION OF FRETTING WEAR IN THE FRAMEWORK OF THE MDR by Li, Qiang; Forsbach, Fabian; Benad, Justus (2019) - Two numerical methods are proposed to improve accuracy of the numerical calculation of fretting wear in the framework of the Method of Dimensionality Reduction (MDR). In these two methods, the transformation equations are reformulated to weaken the singularity of the integrals and a stable simulation of fretting wear is realized even with the wear models which go beyond the classical Archard law. Keywords: wear
• VERIFICATION OF RABINOWICZ’ CRITERION BY DIRECT MOLECULAR DYNAMICS MODELING by Dmitriev, Andrey I.; Nikonov, Anton Yu.; Österle, Werner; Jim, Bai Cheng (2019) - 4 Dependence of critical conditions for transitions of sliding regime on sample width and temperature conditions In order to verify Eqs. Lx = 30.0 nm, T = 500 K. (e) Trajectories of atoms of the specimen with Lx = 15.0 nm after 1.0 ns of sliding at 500 K. Arrow marks the direction of atoms rotation According to the simulation results the critical temperature (Tc) above which the transition from unstable behavior with debris formation to smooth sliding conditions is taking place is about 500 K. For two other specimens with Lx=22.5 nm and Lx=30.0 nm, temperature Tc is also close to 500 K, while for the narrowest specimen with the width of only 10.0 nm the critical temperature is much lower and is about 300 K. This means that the size of the 212 A.I. DMITIREV, A.YU. Keywords: conditions; fig; sample; sliding; temperature; wear
• DRY SLIDING FRICTION AND WEAR OF THE WC/TIC-CO IN CONTACT WITH AL2O3 FOR TWO SLIDING SPEEDS by Harouz, Riad; Lakehal, Abdelaziz; Khelil, Khaled; Dedry, Olivier; Hashemi, Neda; Boudebane, Said (2022) - Also, the additions of TiC in the mixture of Co WC powders are justified by a better hot stability of titanium carbide compared to tungsten carbide. On the other hand, tungsten may produce volatile oxides which then accelerate the degradation of the surface of the material subjected to high temperature wear. Keywords: cermets; fig; friction; grade; m/s; sliding; speeds; temperature; tic; wear
• EXPERIMENTAL INVESTIGATION OF TOOL WEAR AND INDUCED VIBRATION IN TURNING HIGH HARDNESS AISI52100 STEEL USING CUTTING PARAMETERS AND TOOL ACCELERATION by Ambhore, Nitin; Kamble, Dinesh (2020) - Several research studies presented diverse mathematical/statistical predictive models for cutting force, surface roughness, tool vibrations, and tool wear , etc. Therefore, the effect of cutting tool vibrations during the machining process must be studied. Keywords: acceleration; cutting; feed; fig; model; tool; turning; vibration; wear
• FRICTION BEHAVIOR OF ALUMINUM BRONZE REINFORCED BY BORON CARBIDE PARTICLES by Smolin, Alexey Yu.; Filippov, Andrey V.; Shilko, Evgeny V. (2021) - A promising composite material for tribotechnical applications based on aluminum bronze with reinforcing boron carbide particles fabricated by a special electron beam additive deposition technique was studied experimentally and numerically. The simulation results also confirm that the higher friction coefficient of pure bronze may be explained by the higher adhesion of this material, while the presence of carbide and carbon particles reduces the adhesion and consequently the value of friction coefficient. Keywords: aluminum; b4c; boron; bronze; carbide; coefficient; composite; fig; friction; material; matrix; particles; sample; wear
• EXPERIMENTAL AND NUMERICAL DETERMINATION OF THE WHEEL-RAIL ANGLE OF ATTACK by Milković, Dragan; Simić, Goran; Tanasković, Jovan; Jakovljević, Živana; Lučanin, Vojkan (2015) - Experiments are performed on three types of rail vehicles: shunting locomotive series 631-301, motor unit 412-077 and trailing unit 416-077 of electromotor train 412/416. Also the comparison of the results shows that, provided the accurate track stiffness parameters are used, vehicle dynamics simulations can predict angle of attack with sufficient accuracy. Keywords: angle; fig; measurements; rail; unit; vehicle; wear; wheel
• FOREWORD TO THE THEMATIC ISSUE: WEAR PARTICLE TRANSPORT AND EMISSION: MECHANISMS AND ENVIRONMENTAL IMPLICATIONS by Ostermeyer, Georg-Peter; Popov, Valentin L. (2021) - MECHANISMS AND ENVIRONMENTAL IMPLICATIONS Georg-Peter Ostermeyer1, Valentin L. Popov2 1Technische Universität Braunschweig, Braunschweig, Germany 2Technische Universität Berlin, Berlin, Germany The papers of the present Special Issue as well as a number of papers of the subsequent Issues of Facta Universitatis – Series Mechanical Engineering represent extended versions of the research works presented at the International Workshop Wear particle transport and emission: Mechanisms and environmental implications which was carried out online from 24. to 25. At the microscale and nanoscale, again single particles were in focus, e.g. in quasi-molecular dynamics simulations. Keywords: body; engineering; wear

• THE CARBON NANOTUBE-EMBEDDED BOUNDARY LAYER THEORY FOR ENERGY HARVESTING by He, Ji-Huan; Y. Abd Elazem, Nader (2022) - In other words, increasing the value of Pr accelerates the decay of the temperature field away from the heated surface, increasing the rate of heat transfer and a 226 J.-H. HE, N. Y. ABD ELAZEM decrease in the thickness of the thermal boundary layer [38]. Impact of the slip parameter on the heat transfer rate profiles at ϕ=0.25, M=R=3, and Ec= d=1 The Carbon Nanotube-Embedded Boundary Layer Theory for Energy Harvesting 233 The profiles of heat transfer -g'(η) of SWCNT, MWCNT, Cu-water, and Ag-water nanofluids decrease as L and ϕ parameters rise. Keywords: boundary; carbon; heat; mwcnt; nanofluids; nanotubes; parameter; profiles; temperature; transfer; water
• CONVECTIVE FLOW AND HEAT TRANSFER OF NANO-ENCAPSULATED PHASE CHANGE MATERIAL (NEPCM) DISPERSIONS ALONG A VERTICAL SURFACE by Ghalambaz, Mohammad; Jin, Haichuan; Bagheri, Amirhossein; Younis, Obai; Wen, Dongsheng (2022) - Nano-encapsulated phase change suspension is a novel type of functional fluid in which the nanoparticles undergo phase change that contribute to heat transfer. Therefore, new working fluids or new techniques capable of enhancing heat transfer or inducing a uniform temperature distribution are of high interest. Keywords: change; flow; fluid; fusion; heat; heat transfer; nepcm; number; particles; phase; suspension; temperature
• COMPARATIVE ANALYSIS OF THERMAL PERFORMANCE OF TWO BASE LIQUIDS HAVING TRI-HYBRIDIZED NANOMATERIALS IN A VERTICAL CHANNEL UNDER HALL EFFECTS by Hasnain, Jafar (2024) - [8] investigated the behavior of base fluid due to the dispersion of three different nanomaterials in a stretchable channel with heat source and sink phenomena. [14] discussed the micropolar nano liquid in the presence of heat source as well as heat sink phenomena and inclined Lorentz force between vertical plates. Keywords: heat;  ;  ;  ;  
• MACHINE LEARNING OF STRUCTURE – PROPERTY RELATIONSHIPS: AN APPLICATION TO HEAT GENERATION DURING PLASTIC DEFORMATION by Nikolić, Filip; Čanađija, Marko (2025) - Furthermore, it was observed that the level of plastic deformation is significantly lower within the elements to which hard phase material properties are assigned, Fig. Only a fraction of the RVEs deviate from this specific zone, especially those corresponding to a very small amount of hard phase fractions. Keywords: fig; heat; increase; learning; model; phase; plastic; strain; temperature; tqc
• EXPERIMENTAL FORCED SOLAR THIN LAYER GINGER DRYING by Kumar, Mahesh (2016) - The quality of dried ginger was improved and the drying time was observed to be reduced by 66.7% against OSD. Phoungchandang, S., Saentaweesuk, S., 2011, Effect of two stage, tray and heat pump assisted- dehumidified drying on drying characteristics and qualities of dried ginger, Food and Bioproducts Processing, 89(4), pp. Keywords: coefficients; collector; convective; dryer; drying; ginger; heat; transfer
• PRESSURE OPTIMIZATION IN DEC SPRAY CHAMBERS: A COMPREHENSIVE STUDY ON HEAT AND MASS TRANSFER DYNAMICS by Huang, Xiaoqing; Lu, Shunyao; Cai, Ning; Wen, Xiantai (2025) - However, their study did not address the nonlinear relationship between water supply pressure and cooling efficacy, particularly under fluctuating environmental conditions [17, 18]. This study aims to investigate the relationship between water supply pressure and cooling efficiency in DEC spray chambers, with a focus on identifying pressure thresholds that optimize heat and mass transfer dynamics. Keywords: air; bulb; cooling; evaporative; heat; nozzle; pressure; spray; temperature; transfer; water
• BROWNIAN HEAT TRANSFER ENHANCEMENT IN THE TURBULENT REGIME by Chandrasekhar, Suresh; Sharma, Vaarin Majumdar (2016) - It means the flow is fully developed in terms of heat transfer in that region which is in agreement with [23]. Takabi, B., Shokouhmand, H., 2015, Effects of Al2O3-Cu/water hybrid nanofluid on heat transfer and flow characteristics in turbulent regime, International Journal of Modern Physics C, 26(4), 1550047. 14. Keywords: heat; nanofluid; transfer; water
• FORCED CONVECTION DRYING OF INDIAN GROUNDNUT: AN EXPERIMENTAL STUDY by Sahdev, Ravinder Kumar; Kumar, Mahesh; Dhingra, Ashwani Kumar (2017) - Re ×10 4 Pr 30 29.9 25.83 24.3 38.78 1.87 0.6982 60 44.5 35.33 11.7 22.75 1.74 0.6963 90 45.7 36.52 8.1 19.88 1.73 0.6961 120 46.5 36.98 4.5 19.12 1.72 0.6960 150 46.8 37.42 3.2 18.42 1.72 0.6959 Table 4 Values of C, n, hc, and he C n hc (W/m 2 o C) hc, avg (W/m 2 o C) he (W/m 2 o C) he, avg (W/m 2 o C) 0.98 0.31 2.45 – 2.49 2.48 28.08 – 38.73 35.08 474 R. K. SAHDEV, M. KUMAR, A. K. DHINGRA From Table 3, it is observed that the rate of moisture removal is faster in the initial stage and decreases with the increase in drying time. Studies to evaluate the important parameters such as CHTC and EHTC for designing a dryer for groundnut drying have not been found. Keywords: chtc; convection; dryer; drying; experimental; groundnut; heat; ifcd
• EXPERIMENTAL INVESTIGATION OF THE CONVECTIVE HEAT TRANSFER IN A SPIRALLY COILED CORRUGATED TUBE WITH RADIANT HEATING by Đorđević, Milan; Stefanović, Velimir; Vukić, Mića; Mančić, Marko (2017) - Secondary flows observed in the flow patterns, induced by the centrifugal force, significantly affect the flow field and heat transfer. Their conclusions could not be considered general since the average Nusselt number and pressure drop are not appropriate for evaluation of heat transfer and flow characteristics of the tubes with a constantly varying curvature. Keywords: coil; flow; heat; heat transfer; number; spiral; temperature; transfer; tube
• HEAT TRANSFER ENHANCEMENT AND PRESSURE DROP FOR FIN-AND-TUBE COMPACT HEAT EXCHANGERS WITH DELTA WINGLET-TYPE VORTEX GENERATORS by Ghazanfari, Seyed Alireza; Abdul Wahid, Malan (2018) - Hwang, S.W., Kim, D.H., Min, J.K., Jeong, J.H., 2012, CFD analysis of fin tube heat exchanger with a pair of delta winglet vortex generators, Journal of Mechanical Science and Technology, 26(9), pp. Despite different types of heat exchangers, fin-and-tube compact heat exchangers are still common device in different industries due to the diversity of usage and the low space installation need. Keywords: exchangers; factor; fin; heat; heat transfer; transfer; tube; vgs; vortex; winglet
• 3D NUMERICAL SIMULATIONS OF THE THERMAL PROCESSES IN THE SHELL AND TUBE HEAT EXCHANGER by Vukić, Mića V.; Vučković, Goran; Živković, Predrag; Stevanović, Žarko; Tomić, Mladen (2014) - Determination of the extra source terms of the distributed resistance and volume heat transfer coefficients has been made by linearization technique of the special source terms. 4 Variation of heating fluid temperature along the STHE’s axis Fig. 4 shows the comparison between the experimental and the numerical values of the heating fluid temperature by using the local volume overall heat transfer coefficient in the shell axis for the case of three segmental baffle Np = 3, with baffle cut of BC = 22%, with leakage flow between the baffle and the shell, for the heating fluid flow rate of Vt = 3m 3 /h and initial temperature of t1t = 60°C. Fig. Keywords: baffle; fig; flow; fluid; heat; numerical; shell; temperature; transfer; tube
• EFFECTS OF ROTATION ON UNSTEADY FLUID FLOW AND FORCED CONVECTION IN THE ROTATING CURVED SQUARE DUCT WITH A SMALL CURVATURE by Hasan, Mohammad Sanjeed; Chanda, Ratan Kumar; Mondal, Rabindra Nath; Lorenzini, Giulio (2022) - Mondal, R.N., Islam, M.S., Uddin, K., Hossain, M.A., 2013, Effects of aspect ratio on unsteady solutions through curved duct flow, Applied Mathematics and Mechanics, 34(9), pp. The values of Q and w (0, 0) for various M and N at Dn = 1000, Gr = 100, Tr = 500 (positive rotation) and Tr = -500 (negative rotation) and δ = 0.015 M N Q w (0,0) P o si ti v e R o ta ti o n 16 16 291.1740208493 382.6415407505 18 18 291.4440637777 378.9279648439 20 20 291.5043954187 378.2773776991 22 22 291.5491957619 379.0478252693 24 24 291.5511087350 379.0911636619 N eg at iv e R o ta ti o n 16 16 322.2820420248 381.0710697212 18 18 322.2817278220 381.0904822522 20 20 322.2795158289 381.3121404054 22 22 322.2790330741 381.4151170197 24 24 322.2787357133 381.5126278631 Here, grid efficiency is carried out for truncation numbers M and N. As the research deals with square duct flow, so M and N are considered as equal. Keywords: duct; fig; flow; fluid; heat; rotation; square; transfer; velocity
• IRREVERSIBILITY ANALYSIS IN Al2O3-WATER NANOFLUID FLOW WITH VARIABLE PROPERTY by Kumar, Krishan; Chauhan, Prathvi Raj; Kumar, Rajan; Bharj, Rabinder Singh (2022) - Rastogi, P., Mahulikar, S.P., 2018, Entropy generation in laminar forced convective water flow due to overloading toward the microscale, ASME Journal of Energy Resources Technology, 140(8), 082002. So, 58.72 µm is the optimum diameter of the channel under the considered condition and NF flow. Keywords: al2o3; channel; flow; heat; kumar; sgen; water; 𝑆𝑔𝑒𝑛
• APPLICATION POSSIBILITIES OF THE S960 STEEL IN UNDERWATER WELDED STRUCTURES by Tomków, Jacek; Landowski, Michał; Rogalski, Grzegorz (2022) - Moreover, the influence of heat input on the microstructure and hardness in different areas of underwater welded structures were investigated. Sun, K., Hu, Y., Shi, Y., Liao, B., 2020, Microstructure evolution and mechanical properties of underwater dry welded metal of high strength steel Q690E under different water depths, Polish Maritime Research, 27, pp. Keywords: fig; haz; heat; input; specimen; steel; underwater; welding; wet
• STUDY OF DOUBLE SLIP BOUNDARY CONDITION ON THE OSCILLATORY FLOW OF DUSTY FERROFLUID CONFINED IN A PERMEABLE CHANNEL by Hasnain, Jafar; Satti, Hina Ghias; Sheikh, Mariam; Abbas, Zaheer (2023) - 1 Re Q y Q y Q y Q yi t pu y t e C e C e Q Q e Q e i M = + + + + +   ( )17 18 11 12 3 17 4 18 20 11 21 121 , f Q y Q y Q y Q yi t f y y nf nf a C u e C Q e C Q e Q Q e Q Q e U = = = = + + +    ( ) ( )11 12 1 11 2 120,1 0 , Q y Q yi tw y y nf f aq Nu e C Q e C Q e k T T 17 18 11 12 1 3 7 2 3 7 19 20 21 22 1 172 2 2 2 2 1 8 11 7 8 7 11 12 7 8 7 12 23 1 18 24 19 20 1 11 21 1 12 25 2 17 26 2 18 27 19 20 2 11 21 , , , 1 , 1 , Q (1 ) (1 Q ), Q (1 Q ), Q (1 Q ), Q (1 Q ) Q ( Q Q Q Q C GrQ Q C GrQ Q Q Q Q Q Q Q Q Q Q Q Q Q S Q Q Q Q Q S Q Q Q Q Q Q e e Q Q e e         − − = = = = − − + − + = − = + − + − = + = + = + + + 2 12 24 26 23 27 22 27 24 25 3 4 23 25 22 26 23 25 22 26 1 Q ), . Q Q Q Q Q Q Q Q C C Q Q Q Q Q Q Q Q + − − = = − − Study of Double Slip Boundary Condition on the Oscillatory Flow of Dusty Ferrofluid Confined … 679 Fig. Keywords: channel; flow; fluid; heat; slip; y q; − −

• SLIDING FRICTION IN CONTACTS WITH ONE- AND TWO-DIMENSIONAL VISCOELASTIC FOUNDATIONS AND VISCOELASTIC HALF-SPACE by Watanabe, Toshiki; Hatanaka, Shintaro; Nakano, Ken; Popov, Valentin L. (2024) - We found that extending the 1D to the 2D models does not change the master curves qualitatively, confirming that the simplest 1D model is a remarkable tool for understanding sliding friction due to solid viscoelasticity. In this paper, we first show theoretical solutions for one-dimensional (1D) problems of viscoelastic friction with a 1D viscoelastic foundation. Keywords: friction; sliding; v v; viscoelastic; w w
• RADIAL FORCE IMPACT ON THE FRICTION COEFFICIENT AND TEMPERATURE OF A SELF-LUBRICATING PLAIN BEARING by Bojić, Nada; Milčić, Dragan; Banić, Milan; Mijajlović, Miroslav; Nikolić, Ružica (2017) - The increase of friction coefficient value is probably a consequence of plastic saturation of the contact. However, as clearly shown in the figure, the average value of friction coefficient is µ = 0.039. Keywords: bearing; force; friction; friction coefficient; graphite; load; self; temperature; value
• A NUMERICAL STUDY OF THE MICROSCALE PLASTIC STRAIN LOCALIZATION IN FRICTION STIR WELD ZONES by Balokhonov, Ruslan; Romanova, Varvara; Batukhtina, Ekaterina; Sergeev, Maxim; Emelianova, Evgeniya (2018) - Stress and strain fields in equiaxed grain structure For a polycrystal composed of equiaxed grains (Fig. 2a), three sets of calculations were performed where the grain orientations were distributed at random or scattered about certain crystallographic direction within 5 and 22º to simulate a strong or weak {100}<100> cubic texture, respectively. In this paper, the deformation behavior of model grain structures was calculated using the finite element software package ABAQUS/Explicit. Keywords: deformation; friction; grain; localization; microstructure; plastic; stir; strain; stress; texture
• SOME SIMPLE RESULTS ON THE MULTISCALE VISCOELASTIC FRICTION by Ciavarella, Michele; Papangelo, Antonio (2019) - (15) We obtain from the general Persson’s model (6) 0 3 1 1 d ( ) ( ) ( ) 2 q q q q C q S q P q I  , (16) 18. Genovese, A., Carputo, F., Ciavarella, M., Farroni, F., Papangelo, A., Sakhnevych, A., 2019, Analysis of multiscale theories for viscoelastic rubber friction, Proceedings AIMETA 2019 XXIV Conference Keywords: friction; q h
• MULTILEVEL NUMERICAL MODEL OF HIP JOINT ACCOUNTING FOR FRICTION IN THE HIP RESURFACING ENDOPROSTHESIS by Eremina, Galina M.; Smolin, Alexey Yu. (2019) - Bouzakis, K.-D., Michailidis, N., Hadjiyiannis, S., Skordaris, G., Erkens, G., 2002, The effect of specimen roughness and indenter tip geometry on the determination accuracy of thin hard coatings stress–strain laws by nanoindentation, Materials Characterization, 49(2), pp. 149-156. The influence of the coating thickness on the load-displacement curve for the instrumented indentation of ceramic coatings on the metal substrate is studied in [6-8]. Keywords: coating; endoprosthesis; fig; friction; hip; model; resurfacing; stress; titanium
• FRICTION UNDER LARGE-AMPLITUDE NORMAL OSCILLATIONS by Popov, Mikhail (2021) - If the dimensionless velocity β exceeds this threshold value, stick-slip becomes impossible and the macroscopic coefficient of friction  is the same as the intrinsic coefficient of friction µ0. The macroscopic coefficient of friction  can then be recovered through 0 0 0 (1 ( )) z x x w z z z F F F F k u       −  Keywords: coefficient; friction
• INFLUENCE OF THE NORMAL FORCE ON THE SLIDING FRICTION UNDER ULTRASONIC OSCILLATIONS by Milahin, Natalie; Li, Qiang; Starcevic, Jasminka (2015) - The effect of ultrasonic oscillation on the sliding friction has been studied for a few decades, including all possible directions of vibration with consideration of various frequencies and oscillation amplitudes [6-10]. In the recent paper [10], the influence of ultrasonic oscillations for the basic configuration (in-plane-oscillations: oscillations in the contact plane along and perpendicular to the sliding direction; out-of-plane oscillations: oscillations perpendicular to the contact surface) is systematically studied in the relevant interval of the oscillation amplitudes and sliding velocities. Keywords: force; friction; oscillation
• DETERMINATION OF FRICTION HEAT GENERATION IN WHEEL-RAIL CONTACT USING FEM by Miltenović, Aleksandar; Banić, Milan; Stamenković, Dušan; Milošević, Miloš; Tomić, Miša (2015) - They have also presented methods for the calculation of contact temperatures using Blok’s flash temperature formula. Determination of generated friction heat in the contact of wheel and rail is important for understanding the damage mechanisms on these two bodies such as wear. Keywords: coefficient; friction; rail; speed; wheel

• AN IMPROVED BARE-BONES PARTICLE SWARM ALGORITHM FOR MULTI-OBJECTIVE OPTIMIZATION WITH APPLICATION TO THE ENGINEERING STRUCTURES by Wang, Zhaohua; Yang, Guobiao; Sun, Yinxu; Li, Yongxin; Wu, Fenghe (2023) - Leong, W.F., 2008, Multi-objective particle swarm optimization: integration of dynamic population and multiple-swarm concepts and constraint handling, PhD Thesis, Oklahoma State University, America, 213 p. 26. The output values of m objective functions constitute the objective space of multi-objective optimization. Keywords: algorithm; global; mopso; multi; number; objective; optimization; particle; problems; set; solution; swarm
• HYBRID GENETIC AND PENGUIN SEARCH OPTIMIZATION ALGORITHM (GA-PSEOA) FOR EFFICIENT FLOW SHOP SCHEDULING SOLUTIONS by Mzili, Toufik; Mzili, Ilyass; Riffi, Mohammed Essaid; Pamucar, Dragan; Simic, Vladimir; Abualigah, Laith; Almohsen, Bandar (2024) - In Table 4, 5, 6, and 7, we present a comparison between GA-PSeOA and other methods. The following section presents a comprehensive comparison of various algorithms, including the Hybrid Genetic Algorithm and Penguin Search Algorithm (GA-PSeOA), on distinct instances and complexities of scheduling problems. Keywords: algorithm; flow; fssp; hybrid; instances; mzili; objective; optimization; penguin; problem; pseoa; scheduling; search; shop; solution
• USE OF FIVE-PARAMETER OPTIMIZATION OF ATTACHMENT LUG GEOMETRY TO IMPROVE ITS FATIGUE LIFE by Stefanović Gobeljić, Vanja; Grbović, Aleksandar; Sedmak, Aleksandar; Sedmak, Simon; Djukanovic, Gordana; Bogojević, Aleksandar; Vučetić, Ivana (2024) - For this approach one needs reliable experimental data for fatigue crack growth rate and realistic numerical simulation of fatigue crack growth, as demonstrated here. Separating Morphing and Adaptive Remeshing Technology (SMART) was used in the scope of Finite Element Method (FEM) to simulate fatigue crack growth by and to obtain fatigue life for different geometry parameters. Keywords: attachment; crack; fatigue; growth; life; lug; model; optimization; parameter
• AN APPLICATION OF MULTICRITERIA OPTIMIZATION TO THE TWO-CARRIER TWO-SPEED PLANETARY GEAR TRAINS by Stefanović-Marinović, Jelena; Troha, Sanjin; Milovančević, Miloš (2017) - Planetary gear transmissions are the subject of some papers in which the research relevant to the optimizations given. Planetary gear trains (PGT) are a type of gear trains with many advantages. Keywords: carrier; gear; objective; optimization; ratio; shafts; speed; trains; transmission
• WORKSPACE ANALYSIS AND OPTIMIZATION OF THE PARALLEL ROBOTS BASED ON COMPUTER-AIDED DESIGN APPROACH by Aboulissane, Badreddine; El Bakkali, Larbi; El Bahaoui, Jalal (2020) - However, the problem of workspace optimization of the parallel manipulators to obtain a prescribed workspace has been investigated in few articles. The computation and analysis of workspaces will be carried out using the parameterization and three- dimensional representation of the workspace. Keywords: delta; design; optimization; parallel; robot; workspace
• REDESIGN AND TOPOLOGY OPTIMIZATION OF AN INDUSTRIAL ROBOT LINK FOR ADDITIVE MANUFACTURING by Tsirogiannis, Evangelos; Vosniakos, George-Christopher (2019) - Design optimization for Additive Manufacturing is demonstrated by the example of an industrial robot link. Wang S.Y., Tai K., 2005, Structural topology design optimization using genetic algorithms with a bit- array representation, Comput Methods Appl Mech Eng, 194, pp. Keywords: design; fig; forearm; link; manufacturing; mass; optimization; robot; section; sls; topology
• THE SELECTION OF OPTIMAL REVERSIBLE TWO-SPEED PLANETARY GEAR TRAINS FOR MACHINE TOOL GEARBOXES by Troha, Sanjin; Vrcan, Željko; Karaivanov, Dimitar; Isametova, Madina (2020) - An analytical and computer aided procedure for the multi-criteria design optimization of multi-stage gear transmission is presented in paper The process of planetary gear transmission optimization is shown in paper Keywords: carrier; gear; optimization; stage; t t; transmission

• ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF THE MUZZLE BRAKE EFFICIENCY by Ziane Ahmed, Nabil; Jerković, Damir D.; Hristov, Nebojša P.; Boukera Abaci, Walid (2022) - Ekanch Chaturvedi et al designed a new perforated muzzle brake and investigated its performance such as velocity distribution, pressure growth and muzzle brake force [9]. In this study, the Orlov method as an analytical model is used to calculate the muzzle brake efficiency and muzzle brake force Keywords: brake efficiency; brake force; efficiency; force; muzzle brake; projectile; recoil; recoil force; results; type; velocity
• INVESTIGATION OF THE GLUED INSULATED RAIL JOINTS APPLIED TO CWR TRACKS by Németh, Attila; Fischer, Szabolcs (2021) - [27]) Insulated rail joints are special types of fishplated rail joints where the rail ends are insulated from each other. [36]: battering, shelling and metal flow of rail end; endpost battering, delamination; cracked joint bar (fishplate); railhead spalling; chipping at rail end and gage corner; railhead crushing; opening (pull apart) of insulated rail joint; dipping of insulated rail joint. Keywords: adhesive; bending; case; fatigue; fishplates; force; gap; length; opening; rail; rail joints; railway; specimens; steel; tests; tracks; values
• RESEARCH ON THE FLUID-INDUCED EXCITATION CHARACTERISTICS OF THE CENTRIFUGAL PUMP CONSIDERING THE COMPOUND WHIRL EFFECT by Zhou, Wenjie; Yu, Dongliang; Wang, Yifan; Shi, Junlin; Gan, Bin (2023) - Karaskiewicz, K., Szlaga, M., 2014, Experimental and numerical investigation of radial forces acting on centrifugal pump impeller, Archive of Mechanical Engineering, 61(3), pp. 445-454. 31. The changes of fluid-induced force with impeller eccentricity and the unsteady flow characteristics of the internal flow field of centrifugal pump under different flow conditions and rotation speeds are investigated, and the relationship between the fluid-induced force of the impeller and the internal flow field characteristics is discussed. Keywords: characteristics; eccentricity; fig; flow; fluid; force; impeller; pressure; pump; volute

• GEOMETRIC ANALYSIS BY CONSTRUCTAL DESIGN OF STIFFENED STEEL PLATES UNDER BENDING WITH TRANSVERSE I-SHAPED OR T-SHAPED STIFFENERS by Kucharski, Derick M. P.; Pinto, Vinícius T.; Rocha, Luiz A. O.; dos Santos, Elizaldo D.; Fragassa, Cristiano; Isoldi, Liércio A. (2022) - Key words: Stiffened plates, Computational modeling, Constructal Design, T-Shaped Stiffeners, I-Shaped Stiffeners 1. INTRODUCTION However, when it comes to stiffened plates, analytical solutions are complex and often have limitations related to the boundary conditions and loading, leading to inaccurate results. Keywords: constructal; design; fig; maximum; plates; rocha; steel; stiffeners; stress; transverse
• NOVEL SMART DESIGN OF REAR HALF SHAFT OF LARGE URBAN TRANSPORT VEHICLE by Alberti, Fabio; D'Andrea, Danilo; Macor, Alarico; Risitano, Giacomo; Rosseti, Antonio; Sedmak, Aleksandar (2024) - Future work should focus on developing and testing components that can endure the demands of Power Split transmissions. This approach allows for a more refined assessment of fatigue damage, particularly in automotive components subjected to complex load profiles. Keywords: cycle; damage; design; fatigue; fig; half; load; power; shaft; split; stress; transmission; urban; vehicle
• EXPLORING STRUCTURAL DESIGN OF THE FRANCIS HYDRO-TURBINE BLADES USING COMPOSITE MATERIALS by Mastrogiannakis, Iakovos; Vosniakos, George-Christopher (2020) - Failure criteria for composite blades refer to laminate plies (e.g. Max Strain, Max Stress, Tsai-Wu, Tsai-Hill, Hoffman, Hashin, Puck, LaRC and Cuntze). Fluid flow analysis The blade under consideration was hydrodynamically designed at the Laboratory of Hydraulic Turbomachines the National Technical University of Athens (NTUA) as part of the small Francis hydroturbine runner with basic dimensions as follows: diameter 413 mm, height 100 mm, and maximum blade thickness 4 mm. Keywords: blade; design; failure; fig; inlet; layer; model; thickness; water
• REVIEW OF BONE SCAFFOLD DESIGN CONCEPTS AND DESIGN METHODS by Milovanović, Jelena; Stojković, Miloš; Trifunović, Milan; Vitković, Nikola (2023) - In the last ten years, with the significant increase of the computer capabilities, and the emerging new algorithms for the so-called topological shape optimization [43, 44, 45, 46], 3D modeling of bone tissue scaffolds becomes an ideal field for applying topological optimization of scaffold architecture in order to provide the desired characteristics regarding the expected mechanical stresses and deformations. Having in mind the primary function of bone scaffold to reinforce the proto- bone tissue during the recovery, scaffold geometry (i.e. lattice structure of the scaffold) should match the required anisotropy of the mechanical properties. Keywords: architecture; bone; bone scaffold; bone tissue; cells; design; engineering; fig; geometry; lattice; scaffold; scaffold design; structure; tissue; unit
• LIGHTENING STRUCTURES BY METAL REPLACEMENT: FROM TRADITIONAL GYM EQUIPMENT TO AN ADVANCED FIBER-REINFORCED COMPOSITE EXOSKELETON by Fragassa, Cristiano (2021) - Force: the force of opposition to the movement must exclude the effect of gravity (weight force), the variation of intensity according to the arc of action (elastic force) and the dependence on the speed of execution (isokinetic force). It depends on the fact that the two layers of used UD, placed orthogonally, are equivalent to a layer of used BD. ▪ L3 vs. L2: when the fiber orientation is not aligned with the lines of force (L2), the displacement increases by 40%. Keywords: aluminum; composite; design; equipment; fig; gym; layers; material; metal; steel; strength; stress; weight
• SOFTWARE FOR SYNTHESIS OF COMPLIANT MECHANISMS WITHOUT INTERSECTING ELEMENTS by Milojević, Andrija P.; Pavlović, Nenad D. (2014) - The developed software intends to provide an easy-to-use tool for compliant mechanism design, which, we hope, will lead to novel solutions for today's engineering problems. In this paper the new software for synthesis of compliant mechanisms is described. Keywords: compliant; design; displacement; elements; fig; gripper; inverter; mechanisms; software; synthesis

• MODELING OF DEFECTS DETECTION BY ANALYZING THERMAL IMAGES by Andjelković, Boban; Djordjević, Biljana; Jovanović, Nataša (2014) - THE EXPERIMENT The goal of the research is to confirm the possibility of applying non-destructive methods of examining and detecting material defects. The analysis of thermal images enables continuous monitoring of the thermal changes of the surface. Keywords: defects; detection; direction; environment; fig; filtering; image; kernel; object; results; temperature; thermovision; values
• ATTENUATION CHARACTERISTICS OF ULTRASONIC WAVES FROM SONAR LOGGING TOOLS IN SALT CAVERN GAS STORAGE by Yang, Hai-Yan; Wang, Yu; Liu, Sen-Lin; Tu, Qing; Chen, Gang (2024) - The sonar detection of salt cavern gas storage (SCGS) has a low accuracy due to sound wave attenuation. The model was adopted to explore the effect of solution temperature and concentration on sound wave attenuation. Keywords: attenuation; attenuation coefficient; coefficient; frequency; mhz; solution; sound; temperature; wave; wave attenuation
• EVIDENCE OF THE SEMI-SOLID FORMATION IN THE MEDICAL GRADE TI6AL4V ALLOY USING INDUCTION HEATING by Fernandes, Carlos Roberto; Fernandes, Beatriz Luci (2015) - However, from the results of the present work, despite the narrow range of semi-solid temperature of the Ti6Al4V alloy, it seems possible to get it in a semi-solid state. 1 in order to obtain semi-solid microstructure. Keywords: alloy; billet; fig; heating; microstructure; phase; temperature; ti6al4v
• THERMAL EFFECT ON FREE VIBRATION AND BUCKLING OF A DOUBLE-MICROBEAM SYSTEM by Stamenković Atanasov, Marija; Karličić, Danilo; Kozić, Predrag; Janevski, Goran (2017) -        (56) 2 4 2 2 2 0 2 4 2 2 2 0 [( ) ( ) ] a l k F k k k k k b k c k            (32) 2 4 2 2 2 1 0[( ) ](1 ) ,xx xz n T n p n w nb d a l k F k k k k k      (33) 2 4 2 2 2 2 1 0[( ) ] .xx Keywords: buckling; effect; k k; temperature; vibration; w w;  
• PREDICTION OF TEMPERATURE DISTRIBUTION IN THE WORM GEAR MESHING by Miltenović, Aleksandar; Tica, Milan; Banić, Milan; Miltenović, Đorđe (2020) - Worm gear transmissions have number of advantages over other types of transmission, allowing them a wide scope of applications for the transfer of power and movement. The lack of worm gear transmission means a relatively low efficiency, especially for the extreme operating conditions primarily related to the high frequency of rotation. Keywords: distribution; gear; losses; power; temperature; transmission; worm
• FINITE ELEMENT MODELING OF TEMPERATURE FIELDS ON THE CUTTING EDGE IN THE DRY HIGH-SPEED TURNING OF AISI 1045 STEEL by Pérez, Roberto; Hernández, Luis; Quesada, Ana; Pino, Julio; Zayas, Enrique (2020) - The research presents the results of different cutting tools (two coated carbide tools and uncoated cermet) effects on average surface temperature fields on the cutting edge in the dry high-speed turning of AISI 1045 steel. 216 R. PÉREZ, L. HERNÁNDEZ, A. QUESADA, J. PINO, E. ZAYAS REFERENCES 1. Sulaiman, S., Roshana, A., Ariffin, M.K.A., 2013, Finite element modeling of the effect of tool rake angle on tool temperature and cutting force during high speed machining of AISI 4340 steel, Proc. Keywords: cutting; edge; element; finite; machining; modeling; speed; steel; temperature; tool; turning
• TEMPERATURE-DEPENDENT PHYSICAL CHARACTERISTICS OF THE ROTATING NONLOCAL NANOBEAMS SUBJECT TO A VARYING HEAT SOURCE AND A DYNAMIC LOAD by Abouelregal, Ahmed E.; Mohammad-Sedighi, Hamid; Faghidian, Seyed Ali; Shirazi, Ali Heidari (2021) - [(1 + 6𝜉𝐿Ω2(2𝑟+𝐿) ℎ2 ) d4 d𝑥4 − ( 12𝜉𝑠2 ℎ2 + 6𝐿Ω2(2𝑟+𝐿) ℎ2 ) d2 d𝑥2 + 12𝑠2 ℎ2 ] �̅� = − 24𝑇0𝛼𝑇 𝜋2ℎ d2Θ̅ d𝑥2 − �̅�(𝑠) (41) (1 + 𝜏𝜃𝑠) ( d2 d𝑥2 − 𝜋2 ℎ2) Ψ̅ = 𝑠(1 + 𝜏𝑞s + 𝑠2𝜏𝑞 2/2) (Ψ̅ − 𝛾𝜋2ℎ 24𝐾𝜂 d2�̅� d𝑥2) (42) �̅�(𝑥, 𝑠) = 12𝜉𝑠2 ℎ2 �̅� − (1 + 6𝜉𝐿Ω2(2𝑟+𝐿) ℎ2 ) d2�̅� d𝑥2 − 24𝑇0𝛼𝑇 𝜋2ℎ Θ̅ − 𝜉�̅�(𝑠) (43) The analytic solutions for bending moment, deflection and temperature of rotating nonlocal nanobeams are achieved by means of the Laplace transform procedure. Keywords: conductivity; fig; nanobeam; parameter; rotating; temperature; theory; 𝜕𝑥2

• INTERLAYER EFFECT ON DEFORMATION AND FRACTURE OF DENDRITIC STRUCTURE FORMED DURING WIRE-FEED ELECTRON-BEAM ADDITIVE MANUFACTURING OF AL-SI ALLOY by Balokhonov, Ruslan; Utyaganova, Veronika; Gatiyatullina, Diana; Zemlianov, Aleksandr; Romanova, Varvara (2024) - TEM EDS mapping of fine eutectic structure (c) The dendritic structure inside the layer represents a two-level composite material (Fig. 3a). Model structures inheriting the experimental morphology are created, and their deformation and fracture are simulated using ABACUS/Explicit, with the user-defined subroutines being developed to describe the constitutive behavior of aluminum dendrite, silicon and eutectic materials. Keywords: aluminum; deformation; dendrites; eutectic; fig; fracture; interlayer; material; phase; plastic; silicon; strain; stress; structure
• COMPARISON OF THE EFFECT OF ELECTROPLASTICITY IN COPPER AND ALUMINUM by Morkina, Alina Y.; Tarov, Danila V.; Khalikova, Gulnara R.; Semenov, Alexander S.; Tatarinov, Pavel S.; Yakushev, Ilya A.; Dmitriev, Sergey V. (2024) - The final polishing was carried out by jet electropolishing on the Tenupol - 3 machine using electrolyte of the following composition: for copper wire 20% aqueous solution of H3PO4 (at room temperature), for aluminum wire 750 ml methanol, 250 ml HNO3 (at 28°C). Imaging was performed at an accelerating voltage of 20 kV. For all states, the imaging step was set to 0.5 μm for copper wire and 0.3 μm for aluminum wire, with a maximum allowable misorientation error of 2°. Keywords: aluminum; copper; current; deformation; effect; electric; electroplasticity; increase; materials; metals; pulse; results; stress; tensile; wire
• ON THE PROBLEM OF STRAIN LOCALIZATION AND FRACTURE SITE PREDICTION IN MATERIALS WITH IRREGULAR GEOMETRY OF INTERFACES by Balokhonov, Ruslan; Romanova, Varvara (2019) - A prominent example of plastic strain localization is a familiar necking phenomenon. The second stage represents formation of well-defined shear bands oriented at an angle of 45 degrees to the loading direction and plastic strain localization in the bands. Keywords: coating; deformation; fig; localization; material; plastic; regions; strain; stress; substrate
• COMPUTATIONAL MICROSTRUCTURE-BASED ANALYSIS OF RESIDUAL STRESS EVOLUTION IN METAL-MATRIX COMPOSITE MATERIALS DURING THERMOMECHANICAL LOADING by Balokhonov, Ruslan; Romanova, Varvara; Schwab, Eugen; Zemlianov, Aleksandr; Evtushenko, Eugene (2021) - Liang Ma, Cheng Huang, Kevin Dolman, Xinhu Tang, Jianjun Yang, Zheng Shi, Zhong-Sheng Liu, 2017, A method to calculate the bulk hardness of metal matrix composite using Hadfield steel reinforced with niobium carbide particles as an example, Mechanics of Materials, 112, pp. 154-162. 14. 5. Gopinath Muvvala, Debapriya Patra Karmakar, Ashish Kumar Nath, 2017, Online assessment of TiC decomposition in laser cladding of metal matrix composite coating, Materials and Design, 121, pp. 310-320. Keywords: composite; compression; cooling; fig; materials; matrix; metal; particle; stress; stresses; tension
• DYNAMIC ANALYSIS OF THE RIGID-FLEXIBLE EXCAVATOR MECHANISM BASED ON VIRTUAL PROTOTYPE by Yuan, Yongliang; Ren, Jianli; Wang, Zhenxi; Mu, Xiaokai (2022) -                1 1 2 2 9 7 6 1 7 1 3 3 5 7 2 7 2 2 3 7 3 3 4 7 4 4 3 1 7 1 6 2 4 8 7 6 8 4 8 7 2 2 7 9 9 7 6 1 3 3 sin cos cos 2 2 ( ) ( ) ( ) ( ) ( ) 0 ( ) 0 2 cos t l E A F DF r l l Q DF E A J m l l m l l m l l k R R R k J k E A F DF J r r l DF E A                          2 1 2 1 2 4 43 2 ( ) 2 f f l E AE Keywords: boom; dipper; dipper handle; excavator; fig; handle; model; rope; stress;  

• MECHANICAL CHARACTERIZATION OF ROTATING TRIANGLE SHAPED AUXETIC SKIN GRAFT SIMULANTS by Singh, Gurpreet; Gupta, Vivek; Chanda, Arnab (2025) - A biofidelic skin simulant material was employed to fabricate auxetic skin graft simulants with a range of rotating triangle variants, using additive manufacturing and biomimetics. A skin simulant was employed and a range of RT configurations, with internal angles varying from 0° to 135°, were tested through the development of skin graft simulants. Keywords: auxetic; fig; graft; graft simulants; rotating; simulants; skin; skin graft; strain
• ELECTRO-MECHANICAL RESPONSE OF STRETCHABLE PDMS COMPOSITES WITH A HYBRID FILLER SYSTEM by Kim, Haeji; Qaiser, Nadeem; Hwang, Byungil (2023) - Pure PDMS (Fig. 3a) and PEDOT:PSS/PDMS (Fig. 3b) showed smooth surface indicating that the PEDOT:PSS was homogeneously dispersed in PDMS without severe agglomeration. 2 Stress-strain curves of PDMS composites with the different PEDOT:PSS contents. Keywords: agnw; cnt; composites; fig; materials; pdms; pedot; pss; strain; stretchable
• SENSING MECHANISM AND APPLICATION OF MECHANICAL STRAIN SENSOR: A MINI-REVIEW by Ha, Heebo; Qaiser, Nadeem; Yun, Tae Gwang; Cheong, Jun Young; Lim, Sooman; Hwang, Byungil (2023) - This paper explains the basic concept of strain sensors that can convert mechanical deformation into electrical signals. Various types of strain sensors exist, including fiber Bragg gratings [47], triboelectric sensors Keywords: composites; graphene; materials; performance; sensing; sensors; strain; strain sensors; stretchable; wang
• POROSITY EFFECTS ON NONLINEAR STATIC PERFORMANCES OF FUNCTIONALLY GRADED SHELLS CONSIDERING THICKNESS STRETCHING by Mallek, Hanen; Mellouli, Hana; Ben Said, Lotfi; Wali, Mondher; Dammak, Fakhreddine; Alhadri, Muapper (2025) - Moreover, an increase in porosity volume fraction exacerbates the deflection of porous FGM shell structures, underscoring the structural implications of porosity in FGM materials. Shell structures find widespread applications Keywords: fig; k k; material; porosity; shell; strain; t t; thickness;  ;  
• MEASURING DEFORMATIONS IN THE TELESCOPIC BOOM UNDER STATIC AND DYNAMIC LOAD CONDITIONS by Fragassa, Cristiano; Minak, Giangiacomo; Pavlovic, Ana (2020) - 6 Measures for nominal load (75 bar): (a) entire spectrum and (b) loading phase only Comparing measures with expectations:  strain gauges 1-3 and 2-4 have different readings showing that the part of the expected symmetry is missing in the real structure or loads (or both);  strain gauges 5 and 6 actually detect similar values with opposite sign, as well as 11 and 12: De Saint Venant's theory is applicable in those areas;  strain gauge 6, as expected, detects the maximum deformation;  strain gauges 13 and 14 correctly detect lower values (-13%) than strain gauge 6;  Placement of strain gauges Taking into account the results of the previous simulations Keywords: boom; fig; gauges; load; pads; sliding; strain; strain gauges; telescopic
• ELASTIC DAMPER BASED ON THE CARBON NANOTUBE BUNDLE by Rysaeva, Leysan Kh.; Korznikova, Elena A.; Murzaev, Ramil T.; Abdullina, Dina U.; Kudreyko, Aleksey A.; Baimova, Julia A.; Lisovenko, Dmitry S.; Dmitriev, Sergey V. (2020) - Korznikova, E.A., Rysaeva, L.K., Savin, A.V., Soboleva, E.G., Ekomasov, E.G., Ilgamov, M.A., Dmitriev, S.V., 2019, Chain model for carbon nanotube bundle under plane strain conditions, Materials, 12(23), 3951. 62. Firstly, period doubling is observed as a result of the second order phase transition, and at higher compressive strain, the first order phase transition takes place when carbon nanotubes start to collapse. Keywords: axis; bundle; carbon; cnt; cnts; compression; e.a; fig; korznikova; loading; nanotube; phys; properties; strain
• EXPERIMENTAL ANALYSIS OF THE EFFECT OF THE WOVEN ARAMID FABRIC ON THE STRAIN TO FAILURE BEHAVIOR OF PLAIN WEAVED CARBON/ARAMID HYBRID LAMINATES by Zachariah, Sojan Andrews; Shenoy, Satish; Pai, Dayananda (2024) - Saka, K., Harding, J., 1990, A simple laminate theory approach to the prediction of the tensile impact strength of woven hybrid composites, Composites 21(5),pp. Key Words: Hybrid composites, Pseudo – ductility, Woven Fabric polymer composites, Ultimate strain to failure 1. INTRODUCTION Composite laminates are widely employed for various structural applications in the Engineering Sector. Keywords: aramid; behavior; carbon; composites; failure; fiber; hybrid; properties; samples; strain; tensile; virgin
• EFFECT OF THE BIMODAL STRUCTURE PROCESSED BY ECAP AND SUBSEQUENT ROLLING ON STATIC STRENGTH AND SUPERPLASTICITY OF Al-Mg-Sc-Zr ALLOY by Avtokratova, Elena; Sitdikov, Oleg; Latypova, Oksana; Markushev, Michael (2020) - Thus, new grain structures were mainly developed in all alloy states via recrystallization, occurring in the early stages of tensile deformation [23]. This may imply that the straining occurred mainly in the mantle regions by grain boundary sliding (GBS), which was attributed to the ultrafine grain size and a relatively high deformation temperature, resulting in dissipation and almost complete relaxation of the deformation energy introduced by rolling [12, 14]. Keywords: alloy; annealing; ecap; fig; grain; rolling; strain; structure

• A CIRCULAR SECTOR VIBRATION SYSTEM IN A POROUS MEDIUM: A FRACTAL-FRACTIONAL MODEL AND HE’S FREQUENCY FORMULATION by Feng, Guangqing (2025) - The results show that the two methods are very effective for fractal nonlinear oscillators. The result shows that two methods are accurate tools to quickly calculating the periodic properties of fractal nonlinear oscillators, and that the fractal dimension of a porous medium plays an important role in vibration attenuation. Keywords: fractal; frequency; j.h; nonlinear; oscillator; sector; vibration
• FREE VIBRATION INVESTIGATION ON RVE OF PROPOSED HONEYCOMB SANDWICH BEAM AND MATERIAL SELECTION OPTIMIZATION by Safaei, Babak; Chukwueloka Onyibo, Emmanuel; Goren, Mehmet; Kotrasova, Kamila; Yang, Zhicheng; Arman, Samaneh; Asmael, Mohammed (2023) - Considering the effect of boundary conditions on sandwich beam structure. In general, fixed-fixed boundary conditions increased sandwich beam natural frequency as well as corresponding directional deformation. Keywords: beam; core; foam; frequency; honeycomb; honeycomb sandwich; materials; safaei; sandwich; sandwich beam; structures; vibration
• FINITE ELEMENT ANALYSIS FOR DYNAMIC RESPONSE OF VISCOELASTIC SANDWICHED STRUCTURES INTEGRATED WITH ALUMINUM SHEETS by Elmoghazy, Yasser Hamed; Safaei, Babak; Sahmani, Saeid (2023) - In harmonic analysis, resonance frequency is obtained based on mode superposition method to evaluate the steady-state response of VE sandwich beam via maximum deformation. Lewandowski and Baum [19] developed mixed model to anticipate the free vibration response of VE sandwich beam using virtual work principle and VE Zener model. Keywords: beam; element; factor; frequency; loss; sandwich; sandwich beam; structures; ve sandwich; viscoelastic; 𝑒 𝑇
• PERIODIC SOLUTION OF A MICRO-ELECTROMECHANICAL SYSTEM by He, Ji-Huan (2024) - d u du du u A A  = − − = − = − = − − − (17) Keywords: frequency; u u; − −
• COMPUTATIONAL STUDY OF FREQUENCY IMPACT ONTO THE PARTICLE PARAMETERS AND CHANGE IN ACOUSTIC AGGLOMERATION TIME WITH THE NUMBER OF PARTICLES by Rayapureddy, Sai Manoj; Maknickas, Algirdas; Matijošius, Jonas; Vainorius, Darius; Kilikevičius, Artūras (2024) - Markauskas, D., Kačianauskas, R., Maknickas, A., 2015, Numerical particle-based analysis of the effects responsible for acoustic particle agglomeration, Adv. Results demonstrate that elevated frequencies (34.6 kHz) accelerate particle agglomeration, although the overall quantity of agglomerated particles diminishes. Keywords: acoustic; agglomeration; frequencies; frequency; impact; increase; khz; number; particles; study; velocity
• A FAST INSIGHT INTO HIGH-ACCURACY NONLINEAR FREQUENCY ESTIMATION OF STRINGER-STIFFENED SHELLS by He, Chun-Hui; Mohammadian, Mostafa (2025) - A k A d u du u u u u u u t dt dtk A A dt             + +    − + u u uu u u u u u u     + + + +  + =       (18) Keywords: frequency; nonlinear; shell; stringer; u u;  +;  ;  ;  
• IMPACT OF SKINFOLD THICKNESS ON WAVELET-BASED MECHANOMYOGRAPHIC SIGNAL by Krueger, Eddy; Scheeren, Eduardo M.; Rinaldin, Carla Daniele Pacheco; Lazzaretti, André E.; Neves, Eduardo Borba; Nogueira-Neto, Guilherme Nunes; Nohama, Percy (2018) - However, we found that to lowest frequency bands (<11 Hz) the magnitude is greater to group II (St> 20 mm). In a previously study [10] we found a negative correlation between skinfold thickness (ST) and MMG mean frequency, showing the ST can be considered as a natural selective filter Keywords: frequency; group; mmg; muscle; wavelet
• PASSIVE ATMOSPHERIC WATER HARVESTING UTILIZING AN ANCIENT CHINESE INK SLAB by He, Chun-Hui; Liu, Chao; He, Ji-Huan; Shirazi, Ali Heidari; Mohammad-Sedighi, Hamid (2021) - This paper introduces an ancient ink slab, which was recorded in MengxiBitan (梦溪笔谈 ) by Shen Kuo(沈 括)(1031~1095), for water collection from air. There is a similar ancient device for water collection from the air; it is called as Fangzhu, which was widely recorded in many ancient Chinese classics. Keywords: fangzhu; frequency; harvesting; ink; materials; slab; water
• HAMILTONIAN-BASED FREQUENCY-AMPLITUDE FORMULATION FOR NONLINEAR OSCILLATORS by He, Ji-Huan; Hou, Wei-Fan; Qie, Na; Gepreel, Khaled A.; Shirazi, Ali Heidari; Sedighi, Hamid Mohammad- (2021) - Complex mechanical systems usually include nonlinear interactions between their components which can be modeled by nonlinear equations that describe the sophisticated motion of the system. He, J.-H., 2008, Comment on ‘He’s frequency formulation for nonlinear oscillators, European Journal of Physics, 29(4), pp. Keywords: amplitude; equation; formulation; frequency; h.m; journal; nonlinear; vibration

• ANN AND HYBRID MODELLING OF ECCENTRICALLY PATCH LOADED STEEL I-GIRDERS by Šćepanović, Biljana; Rutešić, Snežana; Mijušković, Olga; Gil-Martín, Luisa María; Hernández-Montes, Enrique (2024) - Hence, the ultimate strength of eccentrically patch loaded steel I-girders should be found out in two phases: firstly, girder collapse mode should be estimated; secondly, depending on expected collapse mode, ultimate load should be calculated appropriately. Hence, the ultimate strength of eccentrically patch loaded steel I-girders should be found out in two steps: at first, girder collapse mode should be estimated; secondly, depending on expected collapse mode, ultimate load should be determined appropriately. Keywords: ann; collapse; collapse mode; exp; girders; load; mode; patch; steel; ultimate
• APPLICATION OF CONCRETE CANVAS FOR ENHANCING RAILWAY SUBSTRUCTURE PERFORMANCE UNDER STATIC AND DYNAMIC LOADS by Eller, Balázs; Fischer, Szabolcs (2025) - In terms of the characteristics of GCCMs, this may be true for different types of CC materials in general. The other option is the bending test of CC material with a deformed surface subjected to dynamic loading. Keywords: ballast; bending; canvas; concrete; days; fig; layer; load; material; measurement; railway; reinforcement; results; scale; specimens; strength; test
• A STUDY OF THIN FILM LUBRICATION AT NANOSCALE FOR A FERROFLUID BASED INFINITELY LONG ROUGH POROUS SLIDER BEARING by Patel, Jimit R.; Deheri, Gunamani (2016) - Luo, J.B., Wen, S.Z., Huang, P., 1996, Thin film lubrication, Part 1: The transition between EHL and thin film lubrication, Wear, 194, pp. 107-115. 9. The study aims at analyzing the performance of a ferrofluid-based infinitely long rough porous slider bearing which makes use of thin film lubrication at nanoscale. Keywords: bearing; capacity; film; load; lubrication; patel; respect
• EFFECT OF VARIOUS POROUS STRUCTURES ON THE SHLIOMIS MODEL BASED FERROFLUID LUBRICATION OF THE FILM SQUEEZED BETWEEN ROTATING ROUGH CURVED CIRCULAR PLATES by Patel, Jimit R; Deheri, Gunamani (2014) - A review of the performance of porous squeeze films between lubricated plates is presented by Wu Wu, Hai, 1978, A review of porous squeeze films, Wear, 47(2), pp. 371-385. 13. Keywords: capacity; deheri; effect; fig; film; load; model; respect; squeeze
• QUASI-STATIC INDENTATION BEHAVIOR OF GFRP WITH MILLED GLASS FIBER FILLER MONITORED BY ACOUSTIC EMISSION by Saravanakumar, Kannivel; Sai Lakshminarayanan, Balakrishnan; Arumugam, Vellayaraj; Santulli, Carlo; Pavlovic, Ana; Fragassa, Cristiano (2019) - It is noticed that the damage induced in low-velocity impact can be effectively simulated in quasi-static indentation tests regarding their advantage in providing longer times, hence enabling damage evolution monitoring [7, 8]. The parameters, such as peak load or ultimate load, incident energy, absorbed energy, elastic energy and residual depth, were determined in order to quantify the local damage in the composite materials during quasi-static indentation tests [12, 13]. Keywords: baseline; baseline samples; damage; delamination; depth; fiber; filler; glass; indentation; indentation depth; load; samples
• EFFECT OF THE STACKING SEQUENCE ON THE IMPACT RESPONSE OF CARBON-GLASS/EPOXY HYBRID COMPOSITES by Ali, Hafiz Tauqeer; Akrami, Roya; Fotouhi, Sakineh; Pashmforoush, Farzad; Fragassa, Cristiano; Fotouhi, Mohammad (2020) - Most of the work done to-date on hybrid composites has concerned hybrids under tensile [17, 18], bending and compression loadings Some of the common stacking sequences used in hybrid composites are intermingled continuous fibers [31], intermingled aligned short fibers [32], interlayer or sandwiched layers Keywords: carbon; composites; glass; hybrid; impact; load
• INCREASE IN THE FUEL EFFICIENCY OF A DIESEL ENGINE BY DISCONNECTING SOME OF ITS CYLINDERS by Gritsenko, Alexandr; Shepelev, Vladimir; Fedoseev, Semen; Bedych, Tatyana (2023) - The issues of increasing the fuel efficiency of cars and tractors by disconnecting some of engine cylinders have not been sufficiently studied despite a significant number of publications dealing with this topic THEORETICAL RESEARCH Disconnection of several engine cylinders is advisable when the car (tractor) moves in the transport mode with a small load along a horizontal supporting surface (a road with asphalt concrete or improved surfacing), as well as downhill [30-32]. Keywords: car; consumption; cylinders; deactivation; diesel; efficiency; engine; engine cylinders; fuel; fuel consumption; load; number; tractor; working
• ASSESSMENT OF THE QUADRUPLE INJECTION STRATEGY OVER TRIPLE INJECTIONS TO IMPROVE EMISSIONS, PERFORMANCE AND NOISE OF THE AUTOMOTIVE DIESEL ENGINE by Biswas, Sanjoy; Mukhopadhyay, Achintya (2022) - The influence of alternative fuel on performance, combustion and emissions has also been explored [10-11] with variation in injection parameters or injection strategies. 10 Average BTE at different loads and overall average BTE of injection strategies Assessment of Quadruple Injection Strategy over Triple Injections to Improve Emissions... 331 Fig. Keywords: emissions; engine; epma; fig; fuel; injection; injection strategy; load; performance; pma; quadruple; smoke; strategies; strategy; torque

• ANALYSIS OF THE MECHANICAL CHARACTERISTICS OF DATE SEED POWDER-BASED COMPOSITE CARBON FIBER REINFORCED POLYMERS by Abdelhussien, Abdelsalam; Yang, Guolai; Hussein, Emad Kamil; Li, Lei; Al-Abboodi, Hamid; Mohamad, Barhm (2025) - The best variation of the reinforcement of carbon fiber reinforced epoxy with the date seed granules is the GFR-15-25% wt. GDS composition, according to observations made regarding the mechanical properties of carbon fiber reinforced epoxy resin reinforced with 35, 25, and 15 and 0% wt. GDS. This study reveals that carbon fiber-date seed-reinforced composites are excellent substitutes for carbon fiber composites since they offer better mechanical properties at a lower cost. Keywords: carbon; carbon fiber; composites; date; epoxy; fiber; fig; materials; matrix; properties; seed; strength; test
• DYNAMICAL MODEL OF THE ASYMMETRIC ACTUATOR OF DIRECTIONAL MOTION BASED ON POWER-LAW GRADED MATERIALS by Lyashenko, Iakov A.; Borysiuk, Vadym N.; Popov, Valentin L. (2020) - There are several methods of obtaining of graded materials. Another aim of our study is to check if the use of graded materials as contacting parts of the device can lead to any improvement or alternative behavior of the investigated system. Keywords: indenter; materials; slider
• INFLUENCE OF TACK WELDS DISTRIBUTION AND WELDING SEQUENCE ON THE ANGULAR DISTORTION OF TIG WELDED JOINT by Tomków, Jacek; Sobota, Konrad; Krajewski, Sławomir (2020) - [37] put forward the thesis that weld distortion is not always precisely evaluated by the weld heat input. In the case of steel welding, some typical imperfections could be observed. Keywords: current; distortion; group; materials; steel; tack; tig; values; welding; welds

• MECHANICAL CHARACTERISTICS OF NANO-CRYSTALLINE MATERIAL IN METALLIC GLASS FORMERS by Al-Abboodi, Hamid; Fan, Huiqing; Al-Bahrani, Mohammed; Abdelhussien, Abdelsalam; Mohamad, Barhm (2024) - As anticipated, SAM2X5 (a FeB-based BMG) has exhibited Vickers indentation toughness values that are slight lower than the those of other FeC-based BMGs The Quinn and Bradt [30] the point out that it is doubtful that Vickers toughness values are true or valid, except from by chance. Keywords: bending; bulk; crack; fracture; glass; gpa; hardness; indentation; modulus; sam2x5; samples; specimens; toughness; values; vickers
• DEVELOPMENT AND TESTING OF A NOVEL DIABETIC ORTHOSIS FOR PLANTAR PRESSURE REDUCTION by Singh, Gurpreet; Bose, Dhruv; Chanda, Arnab (2024) - Ma, Z., Lin, J., Xu, X., Ma, Z., Tang, L., Sun, C., Li, D., Liu, C., Zhong, Y., Wang, L., 2019, Design and 3D printing of adjustable modulus porous structures for customized diabetic foot insoles, International Journal of Lightweight Materials and Manufacture, 2(1), pp. Tang, L., Wang, L., Bao, W., Zhu, S., Li, D., Zhao, N., Liu, C., 2019, Functional gradient structural design of customized diabetic insoles, Journal of the Mechanical Behavior of Biomedical Materials, 94, pp. Keywords: azp; dev; foot; fore; heel; inserts; insole; kpa; loading; participants; plantar; pressure; std; values

• FUNCTION K - AS A LINK BETWEEN FUEL FLOW VELOCITY AND FUEL PRESSURE, DEPENDING ON THE TYPE OF FUEL by Nikolić, Boban; Jovanović, Miloš; Milošević, Miloš; Milanović, Saša (2017) - FUNCTION K - AS A LINK BETWEEN FUEL FLOW VELOCITY AND FUEL PRESSURE, DEPENDING ON THE TYPE OF FUEL FACTA UNIVERSITATIS Series: Mechanical Engineering Vol. 15, No 1, 2017, pp. 119 - 132 DOI: 10.22190/FUME160628003N © 2017 by University of Niš, Serbia | Creative Commons Licence: CC BY-NC-ND Original scientific paper FUNCTION K - AS A LINK BETWEEN FUEL FLOW VELOCITY AND FUEL PRESSURE, DEPENDING ON THE TYPE OF FUEL UDC 629.3:629.06 Boban Nikolić, Miloš Jovanović, Miloš Milošević, Saša Milanović Faculty of Mechanical Engineering, University of Niš, Serbia Abstract. Keywords: biodiesel; density; diesel; flow; fuel; injection; oil; pressure; sound; speed; velocity;  
• DETERMINATION OF THE ROLLING RESISTANCE COEFFICIENT UNDER DIFFERENT TRAFFIC CONDITIONS by Nunić, Zdravko B.; Ajanović, Mesud; Miletić, Dario; Lojić, Ranko (2020) - Motor vehicle tires, as a system of vital importance, deserve special attention 664 Z. NUNIĆ, M. AJANOVIĆ, D. MILETIĆ, R. LOJIĆ when checking the technical validity of a motor vehicle in order to increase the safety of road traffic and reduce rolling resistance, total resistance and thus reduce fuel consumption. Reducing rolling resistance affects an increase in energy efficiency of road traffic, which reduces carbon dioxide emission and helps drivers reduce fuel costs. Keywords: coefficient; conditions; fuel; research; resistance; resistance coefficient; rolling; speed; tires; traffic; vehicle
• ASSESSMENT OF VELOCITY ACCURACY OF AIRCRAFT IN THE DYNAMIC TESTS USING GNSS SENSORS by Krasuski, Kamil; Ciećko, Adam; Grunwald, Grzegorz; Wierzbicki, Damian (2020) - 7 shows aircraft flight speed errors calculated as the difference between the weighted average speed and parameter. [18] showed the results of aircraft flight speed tests based on a solution from a GPS sensor and an INS sensor, while the flight speed readings of the aircraft from the GPS sensor and Pitot tubes were published and compared by the Foster et al. Keywords: aircraft; flight; flight speed; gnss; gps; solution; speed; velocity
• EXPERIMENTAL RESEARCH INTO MARBLE CUTTING BY ABRASIVE WATER JET by Perec, Andrzej; Radomska-Zalas, Aleksandra; Fajdek-Bieda, Anna (2022) - Perec, A., 2018, Environmental aspects of abrasive water jet cutting, Annual Set the Environment Protection - RocznikOchronaSrodowiska, 20(1), pp. Hreha, P., Radvanská, A., Hloch, S., Peržel, V., Królczyk, G., Monková, K., 2015, Determination of vibration frequency depending on abrasive mass flow rate during abrasive water jet cutting, The International Journal of Advanced Manufacturing Technology, 77(1-4), pp. 763-774. Keywords: abrasive; cutting; depth; fig; grains; jet; marble; research; speed; water

• MAXIMIZATION OF WEAR RATES THROUGH EFFECTIVE CONFIGURATION OF STANDOFF DISTANCE AND HYDRAULIC PARAMETERS IN ULTRASONIC PULSATING WATERJET by Nag, Akash; Dixit, Amit Rai; Petrů, Jana; Váňová, Petra; Konečná, Kateřina; Hloch, Sergej (2024) - Hloch, S., Srivastava, M., Nag, A., Muller, M., Hromasová, M., Svobodová, J., Kruml, T., Chlupová, A., 2020, Effect of pressure of pulsating water jet moving along stair trajectory on erosion depth, surface morphology and microhardness, Wear, 452-453, 203278. 25. Poloprudský, J., Nag, A., Kruml, T., Hloch, S., 2021, Effects of liquid droplet volume and impact frequency on the integrity of Al alloy AW2014 exposed to subsonic speeds of pulsating water jets, Wear, 488-489, 204136. 32. Keywords: depth; diameter; disintegration; distance; erosion; jet; material; mpa; nozzle; pressure; standoff; supply; water
• A TOP-DOWN MULTISCALE ANALYSIS FOR DERIVING LOCAL MATERIAL PROPERTIES OF ADDITIVELY MANUFACTURED AL-SI ALLOY by Balokhonov, Ruslan; Zemlianov, Aleksandr; Shugurov, Artur; Gatiyatullina, Diana; Ivashov, Ivan; Balokhonov, Vasilii; Romanova, Varvara (2025) - A Top-Down approach is proposed for the numerical-experimental determination of local material properties of an additively manufactured AlSi12 alloy possessing clearly expressed hierarchical structure. The purpose of a multiscale approach [3] is to identify the effect of porosity on mechanical properties and damage mechanisms of multidirectional carbon-fiber-reinforced polymer (CFRP) composites. Keywords: additive; alloy; aluminum; composite; compression; dendrites; eutectic; fig; interlayer; manufacturing; material; multiscale; particles; plastic; properties; silicon; structure
• CUSTOMIZATION OF ELECTROSPINNING FOR TISSUE ENGINEERING by Grujović, Nenad; Živić, Fatima; Schnabelrauch, Matthias; Walter, Torsten; Wyrwa, Ralf; Palić, Nikola; Ocokoljić, Lazar (2018) - Special design of the element used in electrospinning device (a multi-jet electrospinning head) which introduces two different polymers into the electric field is shown in Fig. Development of different electrospinning techniques (melt- and solution- electrospinning, force-spinning, melt-blowing, flash-spinning, spinning of bicomponent fibers) has become a hot topic due to versatile applications of micro- and nanofibers (tissue engineering, sensors, clothing, membranes for filtration systems, fillers in composite structures, coatings, etc.) Keywords: collector; device; electrospinning; electrospun; engineering; fibers; head; material; melt; needle; polymer; solution; tissue

• EXPERIMENTAL AND NUMERICAL INVESTIGATION ON THE PERFORMANCES OF A SMALL WEAPON BARREL DURING ITS LIFECYCLE by Boukera Abaci, Walid; Hristov, Nebojsa; Radisavljevic, Igor; Stojnic, Lazar; Anicic, Aleksa (2023) - [14] provided a new finite element meshing strategy for the worn barrel and a new parametric geometric modeling method for gun barrel using Python code and ABAQUS software. Lawton, B., 2001, Thermo-chemical erosion in gun barrels, Wear, 251(1-12), pp. Keywords: barrel; fig; firing; number; numerical; projectile; results; rifle; simulation; standard
• 3D DIGITIZATION OF FEATURELESS DENTAL MODELS USING CLOSE RANGE PHOTOGRAMMETRY AIDED BY NOISE BASED PATTERNS by Santoši, Željko; Budak, Igor; Šokac, Mario; Puškar, Tatjana; Vukelić, Đorđe; Trifković, Branka (2018) - 3D model obtained by approved professional optical 3D scanner as a reference was used. Images are captured and used to reconstruct and generate 3D models. Keywords: digitization; light; models; object; pattern; photogrammetry; range; results
• ACCURACY ANALYSIS OF THE CURVED PROFILE MEASUREMENT WITH CMM: A CASE STUDY by Mazur, Tomasz; Rucki, Miroslaw; Gutsalenko, Yuriy (2023) - Hence, it may be stated that the influence of sampling is negligibly small when estimating the measurement uncertainty of CMM measurement of the cam profile. Expanded uncertainty of form deviation measurement at the level of confidence p = 99% was U0.99 = 0.005 mm, less than 10% of the measured tolerance. Keywords: cmm; deviation; form; measurement; profile; results; scanning; series

• MODAL TRIGGERED NONLINEARITIES FOR DAMAGE LOCALIZATION IN THIN WALLED FRC STRUCTURES – A NUMERICAL STUDY by Rademacher, Tobias; Zehn, Manfred (2016) - 6 Linear NLDI (left) and reciprocal rNLDI (right) nonlinear damage index. Coupling of nonlinear-measure, modal strain and damage Using a suitable combination of linear modal description of the original structure and nonlinear measure λr associated with damage-induced changes, a spatial damage index, nonlinear damage index NLDIi, could be formulated in a similar way as was done by Montalvão, Ribeiro and Duarte Silva Keywords: damage; fig; index; localization; modal; nonlinear; nonlinearities; structures; vibration
• FROM ART TO ENGINEERING: A TECHNICAL REVIEW ON THE PROBLEM OF VIBRATING CANVAS PART I: EXCITATION AND EFFORTS OF VIBRATION REDUCTION by Kracht, Kerstin; Kletschkowski, Thomas (2017) - This paper gives a summary of the 40 years of conservators‟ research on canvas vibration caused by various excitation scenarios and restorers‟ efforts to reduce mechanical load. The simultaneous reduction of vibration excitation of canvas is up to now an unresolved problem. Keywords: art; canvas; engineering; excitation; exhibition; fig; grid; kracht; paintings; shock; transit; transport; vibration; walls
• EMBEDDED SYSTEMS FOR VIBRATION MONITORING by Milovančević, Miloš; Veg, Aleksandar; Makedonski, Aleksandar; Stefanović Marinović, Jelena (2014) - The basic idea in the optimal micro configuration design is to meet the frame conditions that are required for pump aggregates vibration monitoring. The source of centrifugal pumps vibrations are mechanical, hydraulic and electrical processes caused by the pump construction, operating regime, exploitation and manufacturing technologies used. Keywords: aggregate; condition; fig; measuring; monitoring; point; pump; signal; vibration
• STUDY ON VIBRATION RESPONSE OF A NON-UNIFORM BEAM WITH NONLINEAR BOUNDARY CONDITION by Wang, Peng; Wu, Nan; Luo, Haitao; Sun, Zhili (2021) - d i t t t t d d w x t W x q t W x q t q t W x e A t B t F t e t t d               = =  − = − − − =  + + +    − −     ( 2 3t t t  ). d i t t t t d d w x t W x q t W x q t q t W x e A t B t F t e t t d               = =  − = − − − =  + + +    − −     ( 2 3t t t  ). Keywords: beam; boundary; dx w; q t; t t; t w; vibration; w x; x dx; x t

• SIMULATION AND ANALYSIS OF SPRAY DISTRIBUTION AND DROPLET SIZE OF LARGE SPRINKLER MACHINES LOADED WITH ATOMIZING MICRO-SPRINKLERS by Cao, Hua; Fan, Yongshen; Ma, Chunya; Li, Peng; Zhan, Wei; Cao, Yinbo; Duan, Fuyi (2025) - 5 The Parsivel2 laser raindrop spectrometer uses laser remote sensing technology to derive droplet size distribution, precipitation kinetic energy, particle concentration, and radar reflectivity from the diameter and velocity of precipitation. The experiment adopts three different pressure conditions of 0.2 MPa, 0.3 MPa, and 0.5 MPa, and uses the Parsivel2 laser raindrop spectrometer to test the number of droplets under different spraying droplet size conditions at different pressures, and draw a curve chart as shown in Fig. Keywords: atomization; atomizing; distribution; droplet; fan; micro; nozzle; pressure; size; spraying; sprinkler; water
• NUMERICAL SIMULATION OF FLUID-STRUCTURE INTERACTION BETWEEN FISHING WOBBLER AND WATER by Mijajlović, Miroslav; Vidojković, Sonja; Ćirić, Dušan; Marinković, Dragan (2020) - The solid continuum is firstly simplified: the slim bodies (fishing line, treble hooks, rings, swivel) are modeled as 1D elements, while the massive bodies (wobbler and steel ball) are modeled as 3D elements. The baits from this group are known as wobblers or crankbait [2]. Keywords: fig; fishing; fluid; interaction; line; model; numerical; water; wobbler
• WHAT CAN WE LEARN FROM THE “WATER BEARS” FOR THE ADHESION SYSTEMS USING IN SPACE APPLICATIONS? by Filippov, Alexander E.; Gorb, Stanislav N.; Popov, Valentin L. (2015) - Even if we do not exactly know the materials composition of tardigrade adhesive pads, it is plausible to assume that after complete rehydration at space conditions, this biological material or material composition will be able to recover its adhesive properties after rehydration, due to the material softening after water absorption. The 'leaf' is very elastic and thin and conceptually it resembles terminal spatula of other adhesive systems of insects, spiders, and Geckos Keywords: adhesion; adhesive; conditions; gecko; gorb; space; systems; tardigrades; water

• DETERMINATION OF AVERAGED AXISYMMETRIC FLOW SURFACES AND MERIDIAN STREAMLINES IN THE CENTRIFUGAL PUMP USING NUMERICAL SIMULATION RESULTS by Bogdanović-Jovanović, Jasmina; Milenković, Dragica; Stamenković, Živojin; Spasić, Živan (2017) -  , (3a) where, 1 1Δ ( ) ( ) ( )mr r r     , 2 Δ ( ) ( ) ( )n mr r r     [deg]. The application of the trapezoidal rule for Eq. (4) yields: 1 2 1 2 1 1 1 1 2 1 1 1 ( , ) ( )( ) ( )( ) 2Δ ( ) 2Δ ( ) m n j j j j j j j j j j m f q q f f f f r r                                , (4) Determination of Averaged Axisymmetric Flow Surfaces and Meridian Streamlines in the Centrifugal… 483 where: 1 1Δ ( ) ( ) ( )mr r r     , 2 Δ ( ) ( ) ( )n mr r r     ,  [deg], fj=fj(r), j=1,2,...m1,m2,...,n. Δ grad Δ Δ Δ Δ 1 1 1 div div(Δ , ) Δ , =div Δ , Δ Δ Δ 1 1 1 rot rot(Δ , ) Δ , rot Δ Δ Δ Δ n n f q f f f f Keywords: flow; impeller; j j; l q; pump; q r; δ δ
• NUMERICAL INVESTIGATION OF THE INFLUENCE OF THE DOUBLY CURVED BLADE PROFILES ON THE REVERSIBLE AXIAL FAN CHARACTERISTICS by Spasić, Živan; Jovanović, Miloš; Bogdanović-Jovanović, Jasmina; Milanović, Saša (2020) - In a cascade with straight profiles the leading and trailing angle of blade profile (1l = 2l) equals the angle of inclination profile t in the cascade profile (Fig. If one observes a cascade with profiles that have a doubly curved mean line, the leading and trailing angles of blade profile (1l =2l) are greater or smaller than the angle of inclination of profile cascade t, for the angle of end curvature of profile mean line l (Fig. 4): 1 2l l t l      (2) Fig. Keywords: blades; curvature; fan; fig; flow; profile; 1l; 2l
• FUNNEL FLOW OF A NAVIER-STOKES-FLUID WITH POTENTIAL APPLICATIONS TO MICROPOLAR MEDIA by Fomicheva, Mariia; Müller, Wolfgang H.; Vilchevskaya, Elena N.; Bessonov, Nikolay (2019) - Morozova, A.S., Vilchevskaya, E.N., Müller, W.H., Bessonov, N.M., 2019, Interrelation of heat propagation and angular velocity in micropolar media, Dynamical Processes in Generalized Continua and Structures, pp. 413-425. Springer, Cham. 19. This type of problem arises, for example, during funnel flow of a viscous medium subjected to gravity (see Fig. 4). Keywords: fig; flow; funnel; inertia; velocity
• DESIGN OF SMALL BULB TURBINES WITH UNEQUAL SPECIFIC WORK DISTRIBUTION OF THE RUNNER’S ELEMENTARY STAGES by Bogdanović-Jovanović, Jasmina; Bogdanović, Božidar; Božić, Ivan (2014) - For the fluid flow on cylindrical surfaces (cr = 0, o oc u zu zc c  ) in control cross-sections in front of and behind the turbine runner (where / 0   ), according to the component of vector Eq. (9) in the direction of coordinate r, a differential equation is obtained: ( ) 1u u tz z c rc pc c r r r r         , (10) which defines the condition for cylindrical flow surfaces in control cross-sections 1-1 and 2-2. ( ), for z i z z e c r r r r r r r c const c r r r r                     (20) where the coefficients are: 0 2 1 3 4 h B r B          , 2 1 4 h B B          , 2 0 2 2 4 A r B B    and 0 2 4r AB    (21) Integral of the first Eq. (20), for ri  r  ro, becomes: 2 2 2 1 1 1 1 1 ( ) ( ( )) ( ) ( ) ln 2 o z z o o o o r c r c r r r r r r r r                  . Keywords: flow; r r; runner; surfaces; turbine; work
• EXPERIMENTAL AND NUMERICAL STUDY OF THE IMPACT OF THE OIL TANK FILLING LEVEL ON THE AIRCRAFT SEPARATOR by Szwarc, Tomasz; Wróblewski, Włodzimierz; Borzęcki, Tomasz (2025) - Characteristic of free surface and oil fraction The performed simulations for different filling levels revealed that a free surface and a layered structure of oil fractions were formed in the tank. Oil flow through the separator vent was non-stationary. Keywords: air; fig; filling; flow; gas; level; model; oil; oil level; oil tank; separator; tank; velocity

• LONGITUDINAL-RADIAL VIBRATIONS OF A VISCOELASTIC CYLINDRICAL THREE-LAYER STRUCTURE by Khudoynazarov, Khayrulla (2024) -  = − − − = − − −              , and ψ(n), n=1,2, … is the logarithmic derivative of the Gamma function. I r C K r = + − + = − − −            (16) Keywords: layer; r r; structure

• AN ADVANCED COARSE-FINE SEARCH APPROACH FOR DIGITAL IMAGE CORRELATION APPLICATIONS by Simončič, Samo; Kompolšek, Melita; Podržaj, Primož (2016) - As presented in the previous section, the proposed fine searching approach needs to be implemented by sub-pixel interpolation method which calculates intensity ),( yxg  at each sub-pixel location when that is necessary. Zhang, Z.-F., Kang, Y.-L., Wang, H.-W., Qin, Q.-H., Qiu, Y., Li, X.-Q., 2006, A novel coarse-fine search scheme for digital image correlation method, Measurement, 9(8), pp. Keywords: approach; correlation; fine; image; pixel; point; searching; step; sub

• MINIMIZATION OF DEFLECTION ERROR IN FIVE AXIS MILLING OF IMPELLER BLADES by Soori, Mohsen; Asmael, Mohammed (2023) - Soori, M., Arezoo, B., Habibi, M., 2017, Accuracy analysis of tool deflection error modelling in prediction of milled surfaces by a virtual machining system, International Journal of Computer Applications in Technology, 55(4), pp. Cutting forces and cutting temperatures induce deflection errors in thin-walled structures such as impeller blades through machining operations. Keywords: axis; blades; cutting; deflection; deflection error; error; fig; impeller; machining; milling; operations; tool

• ON INFLUENCE OF BOUNDARY CONDITIONS AND TRANSVERSE SHEAR ON BUCKLING OF THIN LAMINATED CYLINDRICAL SHELLS UNDER EXTERNAL PRESSURE by Mikhasev, Gennadi I.; Mlechka, Ihnat R. (2014) - (16) Functions ,  and  are sought in the form: 1 4 2 1 1( )sin( ), ( )sin( ), ( )sin( )RX x p EhR F x p RS x p              , (17) where p is a wave number, and X(x), F(x), S(x) are unknown functions of x. The substitution of (15) – (17) into Eqs. F X p X dx               , 2 4 2 4 2 (1 ) 0 d F X dx         , (18) 41 2 S S      , (19) where  Keywords: buckling; conditions; edges; k k; pressure; sandwich; shell
• FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY by Mikhasev, Gennadi I.; Bosiakov, Sergei M.; Petrova, Lyudmila G.; Maisyuk, Marina M. (2015) - The elastic modulus of the posterosuperior quadrant 0A1A2A3 has different values when modeling middle ear SSS for the normal and pathologically affected states of the pars tensa. Fig. 4 shows simulated deformations of the TM and middle ear ossicles for the standard pressure, pS = 20 Pa (pSPL = 120 dB), which is caused by the static pressure difference between the ear canal and the TC. Keywords: ear; middle; pars; posterosuperior; pressure; tensa

• THE VEHICLE ROUTING PROBLEM WITH STOCHASTIC DEMANDS IN AN URBAN AREA – A CASE STUDY by Marković, Danijel; Petrovć, Goran; Ćojbašić, Žarko; Stanković, Aleksandar (2020) - Various vehicle routing problems are derived from the CVRP such as: Fig. Avci, M., Topaloglu, S., 2016, A hybrid metaheuristic algorithm for heterogeneous vehicle routing problem with simultaneous pickup and delivery, Expert Systems with Applications, 53, pp.160-171. 12. Keywords: algorithm; node; problem; routing; solution; transport; vehicle; waste

• INTERACTIONS AND INFLUENCES ON COAL MINERS' SAFETY ATTENTION: AN EVALUATION USING IMPROVED DEMATEL-ISM by Xu, De-Yu; Cui, Hong-Qing; Wang, Tian-Yu; Fu, Jiang-Wei; Zhu, Guang-Bo (2024) - Analysis of practical implications from influencing factors Hierarchy is often employed as a critical technique in analyzing influencing factors and forms an integral foundation in safety management. Table 4 Driving force values and dependence values of influencing factors Influencing factor Driving force Dependence S1 5 9 S2 4 10 S3 1 11 S4 1 11 S5 1 11 S6 6 1 S7 6 1 S8 7 3 S9 6 7 S10 3 1 S11 3 1 S12 7 3 S13 8 2 S14 6 2 S15 10 1 148 D.Y. XU, H.Q. CUI, T.Y. WANG, J.W. FU, G.B. ZHU Fig. Keywords: attention; coal; driving; factors; influence; level; matrix; miners; safety
• AN EFFICIENT CO-ROTATIONAL FEM FORMULATION USING A PROJECTOR MATRIX by Nguyen, Viet Anh; Zehn, Manfred; Marinković, Dragan (2016) - Tangent element stiffness matrix The tangent element stiffness matrix, expressed in the global coordinate system, can be calculated by the variation of the global internal element forces with respect to the global element displacements In addition, the internal element forces and element stiffness matrix are computed using directly the consistent variations of the internal element energy with respect to the global displacements. Keywords: element; formulation; linear; matrix; rotation; t t

• EFFECT OF ELECTRIC PULSING ON THE STRUCTURE, TEXTURE AND HARDNESS OF CRYOROLLED FINE-GRAIN COPPER by Markushev, Mikhail; Valeev, Irshat; Valeeva, Aygul; Ilyasov, Rafis; Avtokratova, Elena; Krymskiy, Stanislav; Sitdikov, Oleg (2025) - From grain size distributions (Fig. 4) three modes of dependencies, describing the processes of Cu structure changes under the TMT, were evidenced. The mean subgrain and grain sizes (d and D, consequently) were determined as equivalent diameter of not less than 900 crystallites. Keywords: a2s; copper; cryorolling; electric; grain; hardness; hdep; mm4; pulsing; structure; texture
• FEATURES OF THE Σ5 AND Σ9 GRAIN BOUNDARIES MIGRATION IN BCC AND FCC METALS UNDER SHEAR LOADING – A MOLECULAR DYNAMICS STUDY by Dmitriev, Andrey I.; Nikonov, Anton Yu. (2017) - Studies have shown that the behavior of grain boundaries such as, for example Σ9 (1 2 2)[011], under shear deformation may significantly differ from the behavior of the Σ5 grain boundary. The results of modeling the behavior of grain boundaries Σ5 in nickel sample show that under conditions of shear deformation the relative sliding of interacting grains is accompanied by displacement of boundary position in the direction perpendicular to the applied loading. Keywords: boundary; deformation; grain; loading; plane; shear; structure

• ASSESSMENT AND PERFORMANCE ANALYSIS OF MACHINE LEARNING TECHNIQUES FOR GAS SENSING E-NOSE SYSTEMS by Mahmood, Lubna; Bahroun, Zied; Ghommem, Mehdi; Alshraideh, Hussam (2022) - The framework is applied to assess the performance of different machine learning techniques using three different experimental datasets that were previously obtained from MoX gas sensors. 2 Typical response of MoX gas sensor on exposure to ethylene. Keywords: batch; batches; classification; dataset; features; gas; knn; learning; machine; mape; models; performance; sensor; value

• NUMERICAL MODELLING OF THE CROSSWIND INFLUENCE ON VEHICLE AERODYNAMICS IN HIGHWAY TRAFFIC CONDITIONS by Alic, Daniela; Matijošius, Jonas; Kilikevičius, Artūras (2025) - While accurate turbulence modeling is essential for predicting external vehicle flow - since higher Reynolds numbers suggest more intense turbulence, which can greatly increase drag - the results in this paper are produced using accessible computational resources and aim to provide an estimate of crosswind effects on the vehicle aerodynamics. Furthermore, understanding the impact of crosswinds on vehicle dynamics contributes to highway safety by guiding vehicle control strategies and enhancing driver assistance systems, particularly in regions prone to strong crosswinds. Keywords: aerodynamic; airflow; car; crosswind; drag; fig; lateral; numerical; truck; vehicle; velocity

• VARIATIONAL APPROACH TO MICRO-ELECTRO-MECHANICAL SYSTEMS by He, Ji-Huan; Ma, Jinfeng; Alsolami, Abdulrahman Ali; He, Chun-Hui (2025) - (1) in the following form: 2 0w w w w w m + − − − = (13) Within the domain of fractal MEMS systems, the two-scale fractal concept finds several pivotal applications: 1) Modeling Complex Geometries: Fractal MEMS devices often have complex geometries that cannot be accurately described by traditional geometric models. Keywords: derivative; fractal; fractional; instability; m w; mems; principle; pull; systems; w w; − −
• RELIABLE ROBUST CONTROLLER FOR HALF-CAR ACTIVE SUSPENSION SYSTEMS BASED ON HUMAN-BODY DYNAMICS by Gudarzi, Mohammad (2016) - In addition to aforementioned aspects, another important goal of the controller design for active suspension systems is to maintain the robustness of the closed-loop systems [11]. The above review indicates that while there exists a notable body of literature on the active car suspension control, a comprehensive investigation on active suspension systems considering accurate human biodynamics based on robust non-fragile controller design seem to be absent. Keywords: car; controller; suspension; systems; t t; z t
• FOREWORD by Nikolić, Vlastimir; Marinković, Dragan (2017) - i Editorial FOREWORD Surely each one of you has encountered a situation which made you wonder about the importance of automatic control systems. And, as a matter of fact, the roots of automatic control systems may even be traced back to ancient times. Keywords: systems
• FOREWORD by Popov, Valentin L.; Psakhie, Sergey G.; Chernyavsky, Alexander G. (2015) - Polymer materials for friction systems in vacuum technology, and,  System dynamics and tribology: needs of aerospace technologies. These problems have been discussed during the German-Russian Workshop on “Tribology in aerospace applications: damping, wear and structural dynamics in aerospace systems”, which was held at the Technische Universität Berlin October 6-8, 2014. Keywords: aerospace; dynamics; systems

• HOMOGENISED PROPERTIES OF LATTICE METAL COMPOSITE CELL by Valvano, Stefano (2025) - The originality of the work consists in the study of different BCC cell configurations: standard metal BCC cell, metal BCC cell with waved struts, metal composite BCC cell. 18 Sandwich panel section made of structural steel skins and homogenised lattice core based on waved BCC cells The sandwich panel with composite BCC cells shows a global structural response evaluated through the reaction force at the bottom surface, Fz = 10488 N. The sandwich panel with the homogenised core has a reaction force of Fz = 10635 N, it is clear that the homogenised model leads to an error of 1.5% on the global structural response. Keywords: bcc; bcc cell; cell; composite; core; fig; lattice; periodic; properties; sandwich; u =; v =
• MICROSTRUCTURE AND MICROMECHANICS OF SHALE ROCKS: CASE STUDY OF MARCELLUS SHALE by Du, Hui; Carpenter, Kristen; Hui, David; Radonjic, Mileva (2017) - The yellow spots represent grains with higher mechanical properties, which clearly showed more in outcrops hardness map. Mechanical properties maps of Marcellus shale rock outcrop (left) and core3 (right) based on 100 nano-indentation test results (10x10 grid) Fig. Keywords: clay; core; fig; indentation; marcellus; micro; outcrop; properties; rock; shale
• FRACTAL APPROACH TO MECHANICAL AND ELECTRICAL PROPERTIES OF GRAPHENE/SIC COMPOSITES by Zuo, Yu-Ting; Liu, Hong-Jun (2021) - Recently Le et al. suggested a theoretical method for graphene-reinforced composites, showing a bright light on the optimal design of SiC/ graphene composites for advanced applications [19], the fractal Telegraph equation[20], and fractal integral equations and fractal oscillators Keywords: composites; effect; fig; fractal; graphene; j.h; properties; science

• ABAQUS IMPLEMENTATION OF A COROTATIONAL PIEZOELECTRIC 3-NODE SHELL ELEMENT WITH DRILLING DEGREE OF FREEDOM by Marinković, Dragan; Rama, Gil; Zehn, Manfred (2019) - Key Words: Abaqus, Corotational FEM, Piezoelectric shell element, Discrete shear gap, Assumed natural deviatoric strain 1. INTRODUCTION Nestorovic, T., Marinkovic, D., Chandrashekar, G., Marinkovic, Z., Trajkov, M., 2012, Implementation of a user defined piezoelectric shell element for analysis of active structures, Finite Elements in Analysis and Design, 52, pp. 11-22. Keywords: element; piezoelectric; shell;  ;  

• INNOVATIVE DESIGN STRATEGY FOR AN INTERNAL COMBUSTION ENGINE WITH IMPROVED OUTPUT CHARACTERISTICS by Dorić, Jovan; Nikolić, Nebojša; Galamboš, Stjepan; Feher, Dalibor; Nikolić, Boban (2025) - CAD model of concept engine was made with CATIA V5. The curve of maximum torque over a broad range of engine speeds is a logical outcome of the operational cycle in a variable piston motion engine. Keywords: combustion; compression; concept; efficiency; engine; fig; internal; motion; piston; ratio; speeds; stroke; valve
• MEASURING EFFICIENCY CHANGE IN TIME APPLYING MALMQUIST PRODUCTIVITY INDEX: A CASE OF DISTRIBUTION CENTRES IN SERBIA by Andrejić, Milan; Kilibarda, Milorad; Pajić, Vukašin (2021) - In order to estimate DMU efficiency, it is necessary to have data of consumed input and realized output variables. The methodology of model development and its application for measuring DC efficiency change in time is given below: ▪ Step 1 – defining potential input and output variables; ▪ Step 2 – a selection of input and output variables and model defining: Model 1, Keywords: change; dcs; dea; dmu; efficiency; input; logistics; model; number; output; variables

• SPONTANEOUS COMBUSTION PROPERTIES OF SUBMERGED COAL UNDERGOING TWO OXIDATION PROCESSES UNDER THE INFLUENCE OF HEATING SPEED by Kong, Song; Zhu, Peitao; Dong, Ziwen; Sun, Haoyuan; Zhang, Haojie; Sun, Chuanwen; Yin, Feifei (2025) - Journal's Metrics Impact Factor: 11.8 Journal Citation Reports (Clarivate): 4/182 (ENGINEERING, MECHANICAL) Journal Citation Reports Quartile: Q1 SCOPUS CiteScore: 18.7 (Q1 ranking) Vol. 23, No 4, 2025 December 2025 Table of Contents Articles VARIATIONAL APPROACH TO MICRO-ELECTRO-MECHANICAL SYSTEMS Ji-Huan He, Jinfeng Ma, Abdulrahman Ali Alsolami, Chun-Hui He PDF 649-665 MULTI-OBJECTIVE OPTIMIZATION AND PERFORMANCE ANALYSIS OF BIMORPH MAGNETO-ELECTRO-ELASTIC ENERGY HARVESTERS Meisam Moory Shirbani, Sayed Ehsan Alavi PDF 667-686 MACHINE LEARNING OF STRUCTURE – PROPERTY RELATIONSHIPS: AN APPLICATION TO HEAT GENERATION DURING PLASTIC DEFORMATION Filip Nikolić, Marko Čanađija PDF 687-707 VIBRATION AND STABILITY OF A NONLINEAR NONLOCAL STRAIN-GRADIENT FG BEAM ON A VISCO-PASTERNAK FOUNDATION Nikola Nešić, Milan Cajić, Danilo Karličić, Mihailo Lazarević, Sondipon Adhikari PDF 709-733 HOMOGENISED PROPERTIES OF LATTICE METAL COMPOSITE CELL Stefano Valvano PDF 735-756 PREDICTION OF CONTACT DISTRIBUTION ON ROUGH SURFACES USING DEEP LEARNING ALGORITHMS Ilkwang Jang, Yong Hoon Jang PDF 757-785 A FAST INSIGHT INTO HIGH-ACCURACY NONLINEAR FREQUENCY ESTIMATION OF STRINGER-STIFFENED SHELLS Chun-Hui He, Mostafa Mohammadian PDF 787-806 INNOVATIVE DESIGN STRATEGY FOR AN INTERNAL COMBUSTION ENGINE WITH IMPROVED OUTPUT CHARACTERISTICS Jovan Dorić, Nebojša Nikolić, Stjepan Galamboš, Dalibor Feher, Boban Nikolić PDF 807-825 POROSITY EFFECTS ON NONLINEAR STATIC PERFORMANCES OF FUNCTIONALLY GRADED SHELLS CONSIDERING THICKNESS STRETCHING Hanen Mallek, Hana Mellouli, Lotfi Ben Said, Mondher Wali, Fakhreddine Dammak, Muapper Alhadri PDF 827-860 MIXED-FLOW PUMP OPTIMISATION AND FLOW CHARACTERISTICS BASED ON THE ‘DUAL CARBON’ GOALS Minjia Chen, Xingqi Luo, Wanbo Chen, Jianjun Feng, Xiaohang Wang PDF 861-880 A ROLLING BEARING FAULT DIAGNOSIS METHOD BASED ON EXTREME LEARNING MACHINE OPTIMIZED BY IMPROVED WHALE OPTIMIZATION ALGORITHM Xin Li, Shiliang Guo, Dejie Sun, Lijun Cao, Cong Li, Shuyao Tian, Peng Liu, Yadong Qi PDF 881-907 EFFECT OF ELECTRIC PULSING ON THE STRUCTURE, TEXTURE AND HARDNESS OF CRYOROLLED FINE-GRAIN COPPER Mikhail Markushev, Irshat Valeev, Aygul Valeeva, Rafis Ilyasov, Elena Avtokratova, Stanislav Krymskiy, Oleg Sitdikov PDF 909-920 CU-CU MECHANICAL BONDING FOR 3D INTEGRATION OF THE NEXT GENERATION ELECTRONIC CHIPS: INTERFACIAL MECHANISMS, SURFACE ENGINEERING, AND EMERGING LOW-TEMPERATURE STRATEGIES Sooyong Choi, Chih-Ming Chen, Byungil Hwang PDF 921-943 RELIABILITY PREDICTION AND PROCESS PARAMETER OPTIMIZATION OF WELDED JOINTS: ARTIFICIAL NEURAL NETWORK AND FUZZY LOGIC Jaganathan Gokulachandran, Mohanavelu Thenarasu, Bhadrinath Pothkanoori, Madhavarao Seshadri Narassima, Erfan Babaee Tirkolaee PDF 945-969 ISSN: 0354-2025 (Print) ISSN: 2335-0164 (Online) COBISS.SR-ID 98732551 ZDB-ID: 2766459-4     Keywords: articles; engineering; journal; papers; pdf; submission
• FOREWORD by Trajanović, Miroslav; Canciglieri Jr, Osiris (2015) - Biomedical engineering is one of the youngest branches of engineering which deals with the application of engineering methods to solving problems in medicine. The real development of biomedical engineering happened after WW II. Keywords: bme; engineering
• FOREWORD by Trajanović, Miroslav; Canciglieri Junior, Osiris (2018) - Of those that are close to mechanical engineering it is worth mentioning reverse engineering, additive technologies, nano materials, biomaterials, finite element method, artificial intelligence, robotics and especially nano-robotics. Yet this is not so difficult to guess knowing that an increasing amount of research is currently being done in biomedical engineering. Keywords: engineering; population

• INFLUENCING FACTORS OF DEFORMATION AND FAILURE OF POROUS COAL UNDER CONVENTIONAL LOADING by Jin, Xiaohua; Zheng, Jiyu; Hua, Shunheng; Tong, Xinru (2025) - According to the typical tensile failure mode of porous coal samples, the crack propagation and the failure state of porous coal samples are more complex [9, 10]. When the borehole diameter is small, the borehole has little effect on the coal sample structure, the compressive strength is still large, and the transverse deformation has little change compared with the loading of non-porous coal sample. Keywords: borehole; coal; deformation; failure; inclination; loading; mpa; test

• MODES OF VIBRATION OF THE BEAMS UNDER THE INFLUENCE OF DISCONTINUITY IN FOUNDATION by Stojanović, Vladimir; Ribeiro, Pedro (2014) - d 2 2 c c l L b l L hbl hbl        M N N N N w w w w , (23) 2 1 1 1T 2 2T 21 d [3] have developed a boundary element method (BEM) for the geometrically nonlinear response of shear deformable beams traversed by moving loads, resting on tensionless nonlinear three-parameter viscoelastic foundation; they have shown that the BEM may be advantageous for exploring nonlinear effects on this kind of problems. Keywords: beam; d d; discontinuity; foundation; l l; t t; w w;  
• THE CRITICAL LOAD PARAMETER OF A TIMOSHENKO BEAM WITH ONE-STEP CHANGE IN CROSS SECTION by Janevski, Goran; Stamenković, Marija; Seabra, Mariana (2014) - It can be noticed that the CLP values are maximal for beam type 3, while for beam type 1 are minimal. The influence of the beam type is higher for lower values , as well as that of dimension ratio 2 for beam type 1 in relation to beam type 3. Keywords: beam; clp; r r; type; u r
• THE EFFECT OF ELECTRON-BEAM TREATMENT ON THE DEFORMATION BEHAVIOR OF THE EBAM TI-6AL-4V UNDER SCRATCHING by Shugurov, Artur R.; Nikonov, Anton Y.; Dmitriev, Andrey I. (2022) - The CEBS treated EBAM Ti-6Al-4V sample also primarily demonstrates peaks of the α-Ti phase in the XRD pattern, but (100) preferred orientation became slightly less pronounced. The microstructure of the as-built and CEBS treated EBAM Ti–6Al–4V samples was investigated using an Axiovert 40 Mat optical microscope (Carl Zeiss, Göttingen, Germany). Keywords: bcc; beam; cebs; ebam; electron; fig; phase; samples; scratch; scratching; ti-6al-4v; titanium

• MODELING OSTEOCYTE UNDER SHOCK-WAVE THERAPEUTIC LOADING by Smolin, Alexey; Eremina, Galina (2024) - This study aims to study numerically the effects of low-energy shock wave therapy at different intensities on the mechanical response of a single osteocyte, the principal bone cell that corresponds to microscale of bone tissue. Further, under the action of external mechanical loads (which are always present due to physiological activity) in the connective tissue, there is a differentiation of cells into osteoblasts and fibroblasts, which are the basis for bone synthesis: the main cells of bone tissue—osteocytes, collagen, and extracellular matrix. Keywords: bone; cells; fig; fluid; implant; loading; model; osseointegration; osteocyte; shock; therapy; tissue; wave
• BONE HEALING IN MICE: DOES IT FOLLOW GENERIC MECHANO-REGULATION RULES? by Borgiani, Edoardo; Duda, Georg; Willie, Bettina; Checa, Sara (2015) - The aim of this study is to investigate whether mechanical “rules” explaining tissue formation patterns during bone healing in rat can be translated to a mouse model of bone regeneration. It is well known that the course of bone healing is related to mechanical stability, which in turn influences the local mechanical conditions within the callus. Keywords: bone; bone healing; compression; formation; fracture; healing; loading; mice; model; tissue

• RAIL TRAFFIC VOLUME ESTIMATION BASED ON WORLD DEVELOPMENT INDICATORS by Lazarević, Luka; Kovačević, Miloš; Popović, Zdenka (2015) - However, application of CFS filter showed which groups of indicators are mostly correlated with rail traffic and which indicators can be used for traffic prediction. Two of the infrastructure indicators represent data about freight and passenger rail traffic (target values to predict). Keywords: indicators; model; number; passenger; prediction; rail; traffic; transport

• ROBOT LEARNING OF OBJECT MANIPULATION TASK ACTIONS FROM HUMAN DEMONSTRATIONS by Kyrarini, Maria; Haseeb, Muhammad Abdul; Ristić-Durrant, Danijela; Gräser, Axel (2017) - The multiple human demonstrations are recorded and only the most similar demonstrations are selected for robot learning. Contrary to the above mentioned methods, which are based either on low- or on high- level learning, in this paper, a framework for robot learning which combines the high- level learning and low-level learning at the trajectory level is presented. Keywords: actions; demonstrations; human; learning; level; object; robot; task; trajectory

• FRACTAL DIMENSIONS OF A POROUS CONCRETE AND ITS EFFECT ON THE CONCRETE’S STRENGTH by He, Chun-Hui; Liu, Chao (2023) - There are many methods to calculate fractal dimensions, among which the Hausdorff dimensions are the most used one, its definition is [24, 26] ln ln N r  = (3) where N is new measured units when we measure the fractal pattern using a reduced 1/r scale. It is interesting to note that most natural materials have fractal dimensions closed to 1.618, the golden mean [29,30]. Keywords: concrete; dimensions; fractal; porosity; size; strength
• A CRITICAL ASSESSMENT OF KASSAPOGLOU'S STATISTICAL MODEL FOR COMPOSITES FATIGUE by Ciavarella, Michele; Carbone, Giuseppe; Vinogradov, Vladimir (2018) - Kassapoglou, C., 2011, fatigue model for composites based on the cycle-by-cycle probability of failure: implications and applications, J of Composite Materials, 45, pp. A Critical Assessment on Kassapoglou's Statistical Model for Composites Fatigue 117 The tendency to exponential distribution of fatigue lives is not very strong in general anyway, since in many large databases a full distribution of Weibull shape parameters is found [8, 18]. Keywords: cycle; distribution; failure; fatigue; kassapoglou; model; probability; static; strength

• AN OPTIMIZATION SCHEME FOR THE FUZZY COST-BASED ASSEMBLY LINE BALANCING PROBLEM FOR THE CASE OF NUZZLE PRODUCTION LINE IN PETROLEUM INDUSTRIES by Mahmoodirad, Ali; Pamucar, Dragan; Niroomand, Sadegh (2025) - This is for the first time in the literature that such measure is used in fuzzy assembly line balancing problems. Here, respecting the limitations of the cycle time and the precedence relationships of the tasks and optimizing an objective function like minimization of the number of stations forms a problem called assembly line balancing problem [2,3,4,5,6,7]. Keywords: assembly; assembly line; balancing; formulation; k k; line; line balancing; problem

• FORCED NONLINEAR OSCILLATOR IN A FRACTAL SPACE by He, Ji-Huan; Moatimid, Galal M.; Zekry, Marwa H. (2022) - F F              + − − − − + −  −  + = − − − − + + (32) where ....... 2 2 10 2 2 1 1 0 0 +++=+   +   +    DDD Tdt dT Tdt dT Tdt dT dt d  and 2 2 2 2 0 0 1 1 0 22 2 ( 2 ) ..., n n d D D D D D D D Tdt     + + + +   Therefore, it is convenient to write the solution of Eq. Keywords: + +; fractal; oscillator; parameter; solution; stability; t t
• THE UP-GRATING RANK APPROACH TO SOLVE THE FORCED FRACTAL DUFFING OSCILLATOR BY NON- PERTURBATIVE TECHNIQUE by El-Dib, Yusry; Elgazery, Nasser S.; Alyousef, Haifa A. (2024) - The current technique works on the operator, which is simple and effective when investigating fractal oscillators with external forces, easy to obtain analytic solutions, and doesn't lead to any mathematical difficulties. On the other hand, recent years have seen an increase in interest in mechanical engineering applications for fractal oscillators, as a subfield of vibration theory. Keywords: fractal; u t; u u
• A FRACTAL-BASED APPROACH TO THE MECHANICAL PROPERTIES OF RECYCLED AGGREGATE CONCRETES by He, Chun-Hui; Liu, Hua-Wei; Liu, Chao (2024) - The solution of Eq. (10) is https://baike.baidu.com/item/%E5%B8%8C%E8%85%8A%E5%AD%97%E6%AF%8D/4428067#3-1 332 C.-H. HE, H.-W. LIU, C. LIU 1/2 1/2 0 1/2 1/2 0 1 ( , ) ( ) 1 erf( ) 2 1 ( )erfc( ) 2 DRH s RH RH RH D s RH RH RH D s    − −   − −     = + − −    = + − (11) where RH0=RH(0,t), RH∞=RH(∞,t), erf is the error function and erfc is the complementary error function. 1/2 /2 0 1/2 /2 0 1 ( , ) ( ) 1 erf( ) 2 1 ( )erfc( ) 2 DRH x t RH RH RH D t x RH RH RH D t x     − −   − −     = + − −    = + − (12) Keywords: concrete; diffusion; fractal; humidity; t t; − −

• THE ENHANCED HOMOTOPY PERTURBATION METHOD FOR AXIAL VIBRATION OF STRINGS by He, Ji-Huan; El-Dib, Yusry O. (2021) - [25] used the reducing rank method to solve a third-order damped nonlinear equation produced from the strong damped nonlinear KG equation One of the most traditional techniques to find an approximate solution is the homotopy perturbation method (HPM). It provides solutions to nonlinear equations for which the classical perturbation method proved unsuccessful. Keywords: equation; solution

• A CAD-BASED CONCEPTUAL METHOD FOR SKULL PROSTHESIS MODELLING by Rudek, Marcelo; Gumiel, Yohan B.; Canciglieri Jr, Osiris; Asofu, Naomi; Bichinho, Gerson L. (2018) - The descriptors are used to look for compatible CT images whose bone edge shape versus Bezier curve calculated by their descriptors have a minimum error. Good descriptors will permit us to retrieve compatible CT images to produce the skull prosthesis. Keywords: bezier; curve; descriptors; edge; fig; image; points; prosthesis; skull
• INTELLIGENT MACHINE VISION BASED RAILWAY INFRASTRUCTURE INSPECTION AND MONITORING USING UAV by Banić, Milan; Miltenović, Aleksandar; Pavlović, Milan; Ćirić, Ivan (2019) - Canny edge detector has shown promising results for rail tracks detection, while some intelligent algorithms have great potential in adaptive adjustment of parameters of conventional image processing algorithms. Karakose, M., Yaman, O., Baygin, M., Murat, K., Akin, E., 2017, A new computer vision based method for rail track detection and fault diagnosis in railways, International Journal of Mechanical Engineering and Robotics Research, 6(1), pp. 22-27. 7. Keywords: detection; edge; image; infrastructure; inspection; monitoring; railway; uav; vision
• ON THE INFLUENCE OF MULTIPLE EQUILIBRIUM POSITIONS ON BRAKE NOISE by Koch, Sebastian; Köppen, Emil; Gräbner, Nils; von Wagner, Utz (2021) - Taking this effect into consideration may have significant consequences for the design of brakes as well as simulation and experimental investigation of brake squeal. One reason is that the nonlinearity limiting the limit cycle could be a key for avoiding squealing, i.e. if this nonlinearity could be designed in a way that the amplitudes of the limit cycles are irrelevant for noise, the problem of brake squeal would be solved. Keywords: brake; disk; equilibrium; fig; image; influence; noise; positions; series; squealing; test; torque

• APPLICABILITY ANALYSIS OF ADDITIVE MANUFACTURING PROCESSES IN THE FABRICATION OF ANATOMICALLY SHAPED LATTICE SCAFFOLDS by Milovanović, Jelena; Stojković, Miloš; Trajanović, Miroslav (2015) - Moreover, this criterial matrix serves as the basis for developing Calculator for the generic assessment of additive manufacturing processes applicability. Definitions of variables that are chosen as relevant for AMP applicability assessment in the case of ASLS design are listed below:  Keywords: additive; amp; applicability; asls; case; manufacturing; processes; variables

• THE STUDY AND THE MECHANISM OF NITROGEN OXIDES’ FORMATION IN COMBUSTION OF FOSSIL FUELS by Ongar, Bulbul; Iliev, Iliya K.; Nikolić, Vlastimir; Milašinović, Aleksandar (2018) - The maximum quantity of fuel nitrogen oxides is formed at excess air ratio α = 0.850.9. The fuel nitrogen which remained in coke at the secondary combustion is also partially converted to oxidized nitrogen, but its share in comparison with the emissions of nitrogen fuel oxides from the gas phase is insignificant. Keywords: air; burning; coal; combustion; concentration; formation; fuel; furnace; level; nitrogen; nitrogen oxides; nox; oxides

• PULL-DOWN INSTABILITY OF THE QUADRATIC NONLINEAR OSCILLATORS by He, Ji-Huan; Yang, Qian; He, Chun-Hui; Alsolami, Abdulrahman Ali (2023) - Yeasmin, I.A., Rahman, M., Alam, M., 2021, The modified Lindstedt–Poincare method for solving quadratic nonlinear oscillators, Journal of Low Frequency Noise, Vibration and Active Control, 40(3), pp. 1351-1368. This paper deploys the amplitude-frequency formulation for nonlinear oscillators to reveal the critically important mechanism of the pseudo-periodic motion, and finds the quadratic nonlinear force contributes to the pull-down phenomenon in each cycle of the periodic motion, when the force reaches a threshold value, the pull-down instability occurs. Keywords: instability; motion; periodic; pull

• BENDING FATIGUE BEHAVIOR OF AG NANOWIRE/CU THIN-FILM HYBRID INTERCONNECTS FOR WEARABLE ELECTRONICS by Hwang, Byungil; Han, Yurim; Matteini, Paolo (2022) - Cu thin films were deposited on the Ag nanowire/PI samples via a magnetron sputtering system. Lastly, a Cu thin film was deposited on the PI substrate using DC magnetron sputtering at 100 W at room temperature for 15 min. Thickness of Cu thin film was ~400 nm. Keywords: bending; cap; fig; films; nanowire; resistance; thin
• ANALYSIS OF THE INFLUENCE OF THE DIGGING POSITION ON THE LOADING OF THE AXIAL BEARING OF SLEWING PLATFORM DRIVE MECHANISMS IN HYDRAULIC EXCAVATORS by Jovanović, Vesna; Janošević, Dragoslav; Pavlović, Jovan (2021) - The paper defines the general mathematical model of hydraulic excavators for determining the boundary and possible digging resistances and equivalent loads of the axial bearing of the slewing platform drive mechanism throughout the excavator’s working area. In the synthesis of the slewing platform drive mechanism of hydraulic excavators, one first chooses the axial bearing, which attaches the slewing platform to the support and movement mechanism of the excavator. Keywords: bearing; bucket; digging; drive; excavator; kinematic; mechanism; platform; position; resistance; slewing; slewing platform

• EXPERIMENTAL DETERMINATION OF BEARING LOADS IN ROTATING PLATFORM DRIVE MECHANISMS OF HYDRAULIC EXCAVATORS by Jovanović, Vesna; Janošević, Dragoslav; Petrović, Nikola (2014) - i M r r W r r F M = = = − × + − × +∑ ∑ r r rr r r r r (22) where is the vector of the position of the joint centre (slewing bearing) O2r r 2. Excavators 159 Table 1 Measured quantities of the state of the kinematic chain and excavator drive mechanisms Measuring spot Name of the measured quantity Symbol Dimension М1 Lifting of the support and movement mechanism c1 m М2 Platform rotation angle c2 о М3 Boom hydraulic cylinder motion c3 m Keywords: bearing; chain; drive; excavator; kinematic; member; platform; quantities; r r

• DYNAMIC CHARACTERISTICS OF MIXTURE UNIFIED GRADIENT ELASTIC NANOBEAMS by Faghidian, Seyed Ali; Tounsi, Abdelouahed (2022) - The influence of the gradient characteristic parameters along with the mixture parameter on the fundamental frequency of mixture unified gradient elastic beams is demonstrated in Figs. 3 Normalized fundamental frequency of mixture unified gradient elastic beams with fully-fixed ends 548 S. A. FAGHIDIAN, A. TOUNSI Fig. Keywords: elastic; gradient; gradient theory; m x; mixture; theory; x t

• EFFICIENT CALCULATION OF THE BEM INTEGRALS ON ARBITRARY SHAPES WITH THE FFT by Benad, Justus (2018) - 2 ( , ) S x S y S c x y u x y r x x y y q x y dS x x u x y n x y dS r x x y y y y u x y n x y dS r x x y y                   (12) (Note that in Eq. With 2 2 0 0( ) ( )r x x y y    , (8) the fundamental solution (3) can be written as * 0 0 1 ( , ) ln( ) 2 u x x y y r      . Keywords: boundary; fft; fig; grid;  

• IMPACT OF THE NUMBER OF VEHICLES ON TRAFFIC SAFETY: MULTIPHASE MODELING by Damjanović, Milanko; Stević, Željko; Stanimirović, Dragan; Tanackov, Ilija; Marinković, Dragan (2022) - Traffic safety is one of the key issues nowadays, given the fact that a large number of people lose their lives in traffic accidents every day. After the DEA model, IMF SWARA (Improved Fuzzy Stepwise Weight Assessment Ratio Analysis) was applied to determine the weights of inputs and outputs, while the final state of traffic safety by years was determined using the MARCOS (Measurement of alternatives and ranking according to COmpromise solution) method. Keywords: dea; model; number; road; safety; scenario; traffic; traffic safety; vehicles

• THERMAL BUCKLING ANALYSIS OF FUNCTIONALLY GRADED CIRCULAR PLATE RESTING ON THE PASTERNAK ELASTIC FOUNDATION VIA THE DIFFERENTIAL TRANSFORM METHOD by Farhatnia, Fatemeh; Ghanbari-Mobarakeh, Mahsa; Rasouli-Jazi, Saeid; Oveissi, Soheil (2017) - k k k k A                                                             1 1 1 1 1 1 1 0 0 ( 2)( 1) [ 1] ( 3)                       (30) 4. Keywords: buckling; k k; k r; n k; r r; rr r; w k; w r; w w;  ;  ;  

• GUIDING ACCURACY OF THE WATT COMPLIANT COGNATE MECHANISMS by Pavlović, Nenad T.; Stojiljković, Dušan (2022) - There are many papers considering the structure and function of the compliant joints and compliant mechanisms. A number of authors have established basic nomenclature and classification for the components of compliant mechanisms [2, 3, 4]. Keywords: body; cognate; compliant; guiding; mechanisms; watt

• COMPUTERIZED RADIAL ARTERY PULSE SIGNAL CLASSIFICATION FOR LUNG CANCER DETECTION by Zhang, Zhichao; Umek, Anton; Kos, Anton (2017) - Zuo, W.M., Wang, P., Zhang, D., 2016, Comparison of three different types of wrist pulse signals by their physical meanings and diagnosis performance, IEEE journal of biomedical and health informatics, 20(1), pp. Khaire, N.N., Joshi, Y.V., 2015, Diagnosis of disease using wrist pulse signal for classification of pre-meal and post-meal samples, Proc. Keywords: artery; cancer; diagnosis; features; lung; lung cancer; pulse; signal

• DESIGN METHODOLOGY AND CHARACTERISTICS ANALYSIS OF HIGH-ORDER MULTI-SEGMENT DEFORMED ECCENTRIC NON-CIRCULAR GEAR by Zhao, Huacheng; Chen, Jianneng; Xu, Gaohuan (2024) - [13] proposed to express non-circular gear pitch curves by means of numerical points instead of any function, for the purpose of fitting complex form pitch curves.   = − − − −          r R k n m k n m n m r R k n m k n m n n n m n            (1) where r11, r12 are the polar radii of the eccentric gear for two segments, R is radius of the eccentric gear, k is the eccentricity ratio (k=e/R, e is the eccentricity of eccentric gear), 1 is the polar angle of the eccentric gear, n1 is the order of the eccentric gear, m11, m12 are the deformation coefficients. Keywords: gear; j j; segment; − −;  ;  

• EXCEL VBA-BASED USER DEFINED FUNCTIONS FOR HIGHLY PRECISE COLEBROOK’S PIPE FLOW FRICTION APPROXIMATIONS: A COMPARATIVE OVERVIEW by Brkić, Dejan; Stajić, Zoran (2021) - Zigrang, D.J., Sylvester, N.D., 1985, A review of explicit friction factor equations, Journal of Energy Resources Technology, 107(2), pp. 280-283. Key words: Hydraulic resistance, Colebrook flow friction, Lambert W-function, Excel Macro Programming, Visual Basic for Applications (VBA), User Defined Functions (UDFs) 1. INTRODUCTION The Colebrook equation from 1939 Keywords: colebrook; equation; function; 𝐴𝑠 𝐷𝑜𝑢𝑏𝑙𝑒; 𝐷𝑜𝑢𝑏𝑙𝑒 𝐷𝑖𝑚; 𝐷𝑜𝑢𝑏𝑙𝑒 𝐼𝑓; 𝐸𝑃𝑆𝐼𝐿𝑂𝑁 𝐴𝑠; 𝐸𝑛𝑑 𝐼𝑓; 𝐹𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝐸𝑛𝑑; 𝐼𝑓 𝑅𝐸𝑌𝑁𝑂𝐿𝐷𝑆; 𝑂𝑟 𝐸𝑃𝑆𝐼𝐿𝑂𝑁

• NORMALIZED WEIGHTED GEOMETRIC BONFERRONI MEAN OPERATOR OF INTERVAL ROUGH NUMBERS – APPLICATION IN INTERVAL ROUGH DEMATEL-COPRAS MODEL by Pamučar, Dragan; Božanić, Darko; Lukovac, Vesko; Komazec, Nenad (2018) - i i IRN IRN IRN                          ' ' ' '( ) ( ) , , ,L L U U L L U U Keywords: irn; j j;  ;  

• CRANIOFACIAL STRESS PATTERNS AND DISPLACEMENTS AFTER ACTIVATION OF HYRAX DEVICE: FINITE ELEMENT MODELLING by Bosiakov, Sergei; Vinokurova, Anastasiya; Dosta, Andrei (2017) - Therefore, another objective is to evaluate the effect of the screw location on the stresses and displacements distributions in the craniofacial complex with and without palate cleft. 10, B show that the transversal displacements are the largest components of SULC total displacements after activation of Model 1. Keywords: activation; cleft; displacements; fig; model; skull; stresses; sulc

• FOREWORD by Marinković, Dragan (2016) - This area has been experiencing rapid development in recent years. The wear behavior, temperature development and damping properties can be controlled by a targeted use of gradient materials. Keywords: tribology

• HIGH EFFICIENCY GEAR by Petrescu, Florian Ion Tiberiu; Petrescu, Relly Victoria Virgil (2014) - 51 - 60 HIGH EFFICIENCY GEARS  UDC (621.8) Florian Ion Petrescu, Relly Victoria Petrescu Polytechnic University of Bucharest, Romania Abstract: The paper presents an original method for determining gear efficiency, gearing forces, velocities and powers. It analyzes the way in which certain parameters affect gear efficiency. Keywords: cos;  ;  ;  ;  

• NEW CLASS OF DIGITAL MALMQUIST-TYPE ORTHOGONAL FILTERS BASED ON THE GENERALIZED INNER PRODUCT; APPLICATION TO THE MODELING DPCM SYSTEM by Danković, Nikola; Antić, Dragan; Nikolić, Saša; Milojković, Marko; Perić, Staniša (2019) - A new class of cascade digital orthogonal filters of the Malmquist type based on bilinear transformation for mapping poles to zeroes and vice versa is presented in this paper. For example, in [18], the development of the pipelined structure of digital orthogonal filters started. Keywords: digital; filters; k k; transformation

Epilogue

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Created: 2025-12-25