TY - CHAP AU - Kézi, Csaba Gábor ED - Kocsis, Imre Tibor TI - Differenciálegyenletek alkalmazásai T2 - Proceedings of the Conference on Problem-based Learning in Engineering Education PB - Debreceni Egyetem Műszaki Kar, Műszaki Alaptárgyi Tanszék CY - Debrecen SN - 9789634905240 PY - 2023 SP - 28 EP - 33 PG - 6 UR - https://m2.mtmt.hu/api/publication/34434839 ID - 34434839 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Szántó, Attila AU - Hajdu, Sándor AU - Szíki, Gusztáv Áron TI - Optimizing Parameters for an Electrical Car Employing Vehicle Dynamics Simulation Program JF - APPLIED SCIENCES-BASEL J2 - APPL SCI-BASEL VL - 13 PY - 2023 IS - 15 PG - 20 SN - 2076-3417 DO - 10.3390/app13158897 UR - https://m2.mtmt.hu/api/publication/34088735 ID - 34088735 AB - At the Faculty of Engineering of the University of Debrecen we have dealt with the design and construction of electric prototype race cars for more than a decade. With a focus on more conscious design and racing we developed a vehicle dynamics simulation program, which can be used to generate the dynamics functions of the cars from their technical characteristics and data. In this publication, we deal with the optimization of the technical parameters of the above-mentioned cars for various competition tasks using our simulation program. This is a completely new field of application of the used optimization methods. This concept and idea can effectively help student teams all over the world to prepare for various domestic and international competitions. One of the applied methods is a graphic procedure, the other one is the widely used “adaptive simulated annealing” (ASA). After a brief description of the simulation program, the applied optimization methods and developed MATLAB codes for them are described. Finally, to demonstrate the effectiveness of the methods, we optimize the parameters of a prototype race car for different competition tasks and present the obtained results. LA - English DB - MTMT ER - TY - JOUR AU - Szíki, Gusztáv Áron AU - Szántó, Attila AU - Kiss, János AU - Juhász, György AU - Csernusné Ádámkó, Éva TI - Measurement System for the Experimental Study and Testing of Electric Motors at the Faculty of Engineering, University of Debrecen JF - APPLIED SCIENCES-BASEL J2 - APPL SCI-BASEL VL - 12 PY - 2022 IS - 19 PG - 18 SN - 2076-3417 DO - 10.3390/app121910095 UR - https://m2.mtmt.hu/api/publication/33132975 ID - 33132975 AB - The Faculty of Engineering of the University of Debrecen has a long-standing tradition of developing electric and pneumatic-driven prototype race cars. These vehicles are regular participants in domestic and international university competitions. For more conscious development, thus, for more successful racing, a vehicle dynamics simulation program was developed by our research group. One of the main parts of the above program is the simulation of the drive system, including the electric motor. The input data for the motor simulation programs are the electromagnetic and dynamic characteristics of the motor. Most of these characteristics are usually not specified in the motor catalogue; thus, they have to be measured. In this paper, a detailed description of a recently developed measurement system (MS), which is capable of measuring all the above-mentioned characteristics, is presented. Additionally, by applying it, test measurements can also be performed on the motors to check the accuracy of the output functions generated by the simulation programs. Several experimental arrangements and procedures for specific experimental tasks are also presented here as examples for the application of the MS. LA - English DB - MTMT ER - TY - BOOK AU - Szíki, Gusztáv Áron AU - Szántó, Attila TI - Mérnöki fizika PB - DUPress CY - Debrecen PY - 2019 SP - 108 SN - 9789633188361 UR - https://m2.mtmt.hu/api/publication/30917266 ID - 30917266 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Chiari, M AU - Alves, E AU - Bogdanović, Radović I AU - Cruz, J AU - Csedreki, László AU - Fonseca, M AU - Galaviz, D AU - Henriques, A AU - Jakšić, M AU - Jesus, AP AU - Kakuee, O AU - Kiss, Árpád Zoltán AU - Lagoyannis, A AU - Lourenço, F AU - Luís, H AU - Machado, J AU - Melon, B AU - Nuviadenu, CK AU - Salvestrini, L AU - Sharifzadeh, N AU - Siketić, Z AU - Szíki, Gusztáv Áron AU - Szikszai, Zita AU - Teubig, P AU - Velho, P AU - Zamboni, I AU - Zarza, M TI - Measurement of proton induced gamma-ray emission cross sections on Na from 1.0 to 4.1 MeV JF - NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS J2 - NUCL INSTRUM METH B VL - 441 PY - 2019 SP - 108 EP - 118 PG - 11 SN - 0168-583X DO - 10.1016/j.nimb.2017.01.043 UR - https://m2.mtmt.hu/api/publication/3184199 ID - 3184199 N1 - INFN-Florence and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, Florence, I-50019, Italy IPFN, Instituto Superior Técnico, Universidade de Lisboa, E.N.10, 2866-953 Sacavém, Portugal Ruđer Bošković Institute, P.O. Box 180, Zagreb, 10000, Croatia Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, Monte da Caparica, 2829-516, Portugal Institute for Nuclear Research, Hungarian Academy of Sciences, MTA Atomki, P.O. Box 51, Debrecen, H-4001, Hungary Universidade Europeia Laureate International Universities, Lisboa, 1500-210, Portugal Departamento de Física, Faculdade de Ciências da Universidade de Lisboa, Portugal Physics & Accelerator Research School, Nuclear Science and Technology Research Institute, P.O. Box 14395 – 836, Tehran, Iran Tandem Accelerator Laboratory, Institute of Nuclear and Particle Physics, NCSR “Demokritos”, 153.10 Aghia Paraskevi, Athens, Greece Serviço de Medicina Nuclear, Hospital Garcia da Horta, Almada, 2805-267, Portugal Accelerator Research Centre, Ghana Atomic Energy Commission, Accra, Ghana Department of Physics, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran Department of Basic Technical Studies, Faculty of Engineering, University of Debrecen, Debrecen, H-4028, Hungary Deparmento de Radioterapia, Instituto Português de Oncologia, R. Prof. Lima Basto, Lisboa, 1099-023, Portugal Export Date: 11 November 2020 CODEN: NIMBE Correspondence Address: Chiari, M.; INFN-Florence and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, Italy; email: chiari@fi.infn.it INFN-Florence and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, Florence, I-50019, Italy IPFN, Instituto Superior Técnico, Universidade de Lisboa, E.N.10, 2866-953 Sacavém, Portugal Ruđer Bošković Institute, P.O. Box 180, Zagreb, 10000, Croatia Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, Monte da Caparica, 2829-516, Portugal Institute for Nuclear Research, Hungarian Academy of Sciences, MTA Atomki, P.O. Box 51, Debrecen, H-4001, Hungary Universidade Europeia Laureate International Universities, Lisboa, 1500-210, Portugal Departamento de Física, Faculdade de Ciências da Universidade de Lisboa, Portugal Physics & Accelerator Research School, Nuclear Science and Technology Research Institute, P.O. Box 14395 – 836, Tehran, Iran Tandem Accelerator Laboratory, Institute of Nuclear and Particle Physics, NCSR “Demokritos”, 153.10 Aghia Paraskevi, Athens, Greece Serviço de Medicina Nuclear, Hospital Garcia da Horta, Almada, 2805-267, Portugal Accelerator Research Centre, Ghana Atomic Energy Commission, Accra, Ghana Department of Physics, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran Department of Basic Technical Studies, Faculty of Engineering, University of Debrecen, Debrecen, H-4028, Hungary Deparmento de Radioterapia, Instituto Português de Oncologia, R. Prof. Lima Basto, Lisboa, 1099-023, Portugal Export Date: 7 December 2020 CODEN: NIMBE Correspondence Address: Chiari, M.; INFN-Florence and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, Italy; email: chiari@fi.infn.it AB - Abstract Differential cross sections for proton induced γ-ray emission from the reactions 23Na(p,p′γ)23Na (Eγ = 441 and 1636 keV) and 23Na(p,α′γ)20Ne (Eγ = 1634 keV) were measured for proton energies from 1.0 to 4.1 MeV in five different ion beam laboratories. Backscattered protons were collected simultaneously for normalization purposes, avoiding the measurement of the absolute values of the collected beam charge. The overall uncertainty was estimated to be around 7–8% for the cross section of the 441 keV γ-ray line from the 23Na(p,pγ1-0)23Na reaction, and of 8–12% for the cross section of the 1634–1636 keV γ-ray lines from the 23Na(p,αγ1-0)20Ne and 23Na(p,pγ2-1)23Na reactions. To check the possible anisotropy of the emitted 441 keV γ-ray, angular distribution measurements were performed at 1292, 1468, 1931, 2083 and 2851 keV proton energy, where sharp and well separated resonances occur in the excitation function; moreover, in the energy range from 2.5 to 4.1 MeV proton energy, differential cross sections at 0°, 45° and 90° were measured as well. LA - English DB - MTMT ER - TY - JOUR AU - Vincze, Csaba AU - Vámosiné Varga, Adrienn AU - Oláh, Márk AU - Fórián, László TI - On computable classes of equidistant sets. equidistant functions TS - equidistant functions JF - MISKOLC MATHEMATICAL NOTES J2 - MISKOLC MATH NOTES VL - 19 PY - 2018 IS - 1 SP - 677 EP - 689 PG - 13 SN - 1787-2405 DO - 10.18514/MMN.2018.2145 UR - https://m2.mtmt.hu/api/publication/3252547 ID - 3252547 LA - English DB - MTMT ER - TY - CONF AU - Mankovits, Tamás AU - Varga, Tamás Antal AU - Kocsis, Imre Tibor AU - Manó, Sándor AU - Budai, István TI - Zártcellás fémhabok belső szerkezetnek elemzése T2 - OGÉT 2017: XXV. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Kolozsvár T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 25. PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) PY - 2017 SP - 267 EP - 270 PG - 4 UR - https://m2.mtmt.hu/api/publication/26585302 ID - 26585302 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Herendiné Kónya, Eszter AU - Szanyi, Gyöngyi ED - Martin, Stein TI - A Classroom Teaching Experiment on the Preparation of the Function Concept T2 - A Life's Time for Mathematics Education and Problem Solving PB - WTM-Verlag CY - Münster SN - 9783959870634 PY - 2017 SP - 210 EP - 219 PG - 10 UR - https://m2.mtmt.hu/api/publication/3386180 ID - 3386180 LA - English DB - MTMT ER - TY - CHAP AU - Csernusné Ádámkó, Éva ED - Kocsis, Imre Tibor TI - Játék alapú kódolás a középiskolában T2 - Proceedings of the Conference on Problem-based Learning in Engineering Education PB - University of Debrecen Faculty of Engineering CY - Debrecen SN - 9789634739814 PY - 2017 SP - 5 EP - 10 PG - 6 UR - https://m2.mtmt.hu/api/publication/3329814 ID - 3329814 LA - Hungarian DB - MTMT ER - TY - BOOK ED - Kocsis, Imre Tibor TI - Proceedings of the Conference on Problem-based Learning in Engineering Education ET - 0 PB - University of Debrecen Faculty of Engineering CY - Debrecen PY - 2017 SP - 110 SN - 9789634739814 UR - https://m2.mtmt.hu/api/publication/3329807 ID - 3329807 LA - English DB - MTMT ER -