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Preface – Dedicated to Prof. Ing. Pavel Élesztős, Csc. and Prof. Ing. Stanislav Žiaran, Csc. on the Occasion of Their 70th Birthday


The article deals with the contribution of Prof. Ing. Pavol Élesztős, CSc. in the field of engineering. He was born in 1948, studied and subsequently remained at the Faculty of Engineering at the Slovak University of Technology in Bratislava since 1968. Under his leadership 6 dissertation theses were defended in the study program of Applied Mechanics. He is the author of 1 monograph, co-author of 2 monographs, author of 30 reviewed scientific articles in journals, and over 250 original scientific papers published in domestic and foreign conference proceedings. Professor Élesztős is currently a Professor Emeritus and is known as a talented teacher.

This article is a celebration of prof. Ing. Stanislav Žiaran’s, CSc. contribution to the field of engineering. Born in 1948, since 1966 he studied and subsequently continued his academic career at the Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava. He has supervised 2 dissertation and 42 diploma theses, which were successfully defended in the study programs Applied mechanics and Mechatronics. Prof. Žiaran is the author to 5 monographs, 9 textbooks, 13 university textbooks, 6 manuals for the engineering industry and more than 290 original scientific papers published in domestic as well as international journals and conference proceedings. He has translated of 111 ISO and EN standards, 107 research reports for practice and he is the editor of 20 peer-reviewed scientific proceedings Noise and Vibration in Practice. He also presented 16 requested lectures at world congresses abroad. Prof. Žiaran is a gifted teacher of mechanics and his students appreciate his enthusiasm and knowledge he is sharing with them.

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Cross-Coupled Heat and Moisture Transport Part 2/1: Applications in Mechanics
Electrical Analogy – Analytical Solution – Experiments

Shape, Void Volume and Matrix Anisotropy on Effective Thermal Conductivity of a Three-Phase Composite. Journal of Composite Materials 1996 (30), No. 8, 933 – 946. [9] A. Szekeres. Composite Structures with Hygroscopic Element, Pres. held at CASS/CCMS Fifth Technical Conference, Oct. 13-15,, Virginia Tech, Blacksburg, VA, 1996 . [10] A. Szekeres, J. Engelbrecht. Coupled Thermal and Moisture Fields with Application to Composites. Periodica Polytechnica Ser. Mech. Eng. 1997 (41), No. 2, 151 – 161. [11] R. Heller, A. Szekeres. Thermodynamics

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Phenomenological Material Model of Foam Solids

. 13, pp. 2297, 1969 [12] MEINECKE, E. A., SCHWABER, D. M.: J. Appl. Polym. Sct., vol. 14, pp. 2239, 1970 [13] NAGY, A., KO, W. L., LINDHOLM, U. S.: J. Cell. Plastics, vol. 10, pp. 127, 1974 [14] SHERWOOD, J. A., FROST, C. C.: Polym. Eng.Sct., vol. 32, pp. 1138, 1992 [15] AVALLE, M., BELINGARDI, G., IBBA, A.: Mechanical models of cellular solids: Parameters identification from experimental tests, Int. Journal of Impact Engineering, vol. 34, pp. 3-27, 2007 [16] LIU, Q., SUBHASH, G.: A

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Buckling Analysis of Hetero-Junction Carbon Nanotubes

. [11] V.K. Patel, K. Rani. Mechanical and wear properties of friction stir welded 0–6Wt% nAl2O3 reinforced Al-13Wt%Si composites. Journal of Mechanical Engineering – Strojnícky časopis 2017 (67), No. 1, 77 – 86. [12] E. Marenić, A. Ibrahimbegovic, J. Sorić, P.A. Guidault. Homogenized elastic properties of graphene for small deformations. Materials 2013 (6), 3764 – 3782.

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An Estimating the Effect of Process Parameters on Metal Removal Rate and Surface Roughness in WEDM of Composite Al6063/SiC/Al2O3 by Taguchi Method

-23, 2015 ; SIT, Pithoragarh, Uttarakhand (INDIA), ISBN: 978-93-85437-03-8 [4] A. Handa, V. Chawla. Experimental evaluation of mechanical properties of friction welded dissimilar steels under varying axial pressures, Journal of Mechanical Engineering - Strojnícky časopis, 2016 (66), No. 1, 27 - 36. [5] V. K. Patel, K. Rani. Mechanical and Wear Properties of Friction Stir Welded 0-6wt% nAl 2 O 3 Reinforced Al-13wt% Si Composites, Journal of Mechanical Engineering - Strojnícky časopis, 2017 (67), No. 1, 77 - 86 [6] D. Santha Rao, N. Ramanaiah

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Adaptive Car Following Model

, Dresden. [11] O. Derbel, T. Peter, B. Mourllion, M. Basset. Generalized velocity-density model based on microscopic traffic simulation. Transport 2015 (33), No. 2, 489 - 501. DOI: 10.3846/16484142.2017.1292950 [12] P. A. Azodo. Survey Road-Tyre contact patch pattern and wear related aspects. Journal of Mechanical Engineering - Strojnícky časopis 2017 (67), No. 2, 5 - 12. DOI: 10.1515/scjme-2017-0013 [13] S. Ossen, S. P. Hoogendoorn, B. G. Gorte. Inter-driver differences in car-following: a vehicle trajectory based study

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Rooppur Nuclear Power Plant: Current Status & Feasibility

Plant site in Bangladesh. International Journal of Radiation Research 2015 (13), No. 2., 135 - 142. [31] A. Papadopoulos, S. Altunkaynak, A. Koroneos, A. Ünal, Ö. Kamaci. Geochemistry of uranium and thorium and natural radioactivity levels of the western Anatolian plutons, Turkey. Mineralogy and Petrology 2017 (111), No. 5, 677 - 691. [32] S. Ali, M. Tufail, K. Jamil, A. Ahmad, H.A. Khan. Gamma-ray activity and dose rate of brick samples from some areas of North West Frontier Province (NWFP), Pakistan. Science of the total environment

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Analysis of the Effect of the Addendum Modification Coefficient for Contact Surfaces of Spur Gear

REFERENCES [1] Bodzás, S. “Computer aided designing and modelling of x-zero gear drive”, International Review of Applied Sciences and Engineering, 8 (1), pp. 93 – 97, 2017 . DOI 10.1556/1848.2017.8.1.13 [2] Bodzás S. “Computer aided designing and modelling of spur gear pairs having normal and modified straight teeth”, International Review of Applied Sciences and Engineering (during publication) [3] I. Dudás, I. “Gépgyártástechnológia III., A. Megmunkáló eljárások és szerszámaik, B. Fogazott alkatrészek gyártása és szerszámaik” , Műszaki Kiadó

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Geometrically Similar Rectangular Passive Micromixers and the Scaling Validity on Mixing Efficiency and Pressure Drops

split and recombination micromixer fabricated in a PDMS three-dimensional structure”, Journal of Micromechanics and Microengineering 16, 1067, 2006 . [12] Afzal, A., Kim, K.Y. “Passive split and recombination micromixer with convergent–divergent walls”, Chemical Engineering Journal 203, pp. 182 – 192, 2012 . [13] Lee, J., Kwon, S. “Mixing efficiency of a multilaminationmicromixer with consecutive recirculation zones”, Chemical Engineering Science 64, pp. 1223 – 1231, 2009 . [14] Nichols, K.P., Ferullo, J.R., Baeumner, A. J. “Recirculating passive

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Detection and Modeling Vibrational Behavior of a Gas Turbine Based on Dynamic Neural Networks Approach

-based health monitoring, diagnostics and prognostics for condition-based maintenance of gas turbines: A review. Applied Energy 2017 (198), 122 - 144. [12] M. Amozegar, K. Khorasani. An ensemble of dynamic neural network identifiers for fault detection and isolation of gas turbine engines. Neural Networks 2016 (76), 106 -121. [13] B. Djaidir, A. Hafaifa, K. Abdallah. Faults detection in gas turbine rotor using vibration analysis under varying conditions. Journal of Theoretical and Applied Mechanics 2017 (55), No. 2, 393 - 406

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