TY - CONF AU - Berezvai, Szabolcs AU - Tomin, Márton ED - Barabás, István TI - 3D-nyomtatott habok nyomtatásihőmérséklet-függő nemlineáris véges rugalmas-képlékeny modellezése T2 - OGÉT 2025 - XXXIII. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Nagyvárad T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 33. PY - 2025 SP - 31 EP - 36 PG - 6 UR - https://m2.mtmt.hu/api/publication/36131620 ID - 36131620 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Plavecz, Lambert AU - Karap, Attila AU - Berezvai, Szabolcs TI - Modeling MEMS accelerometer anchor velocity during package drop with a discrete impact model and a transfer function JF - EUROPEAN JOURNAL OF MECHANICS A-SOLIDS J2 - EUR J MECH A-SOLID PY - 2025 SN - 0997-7538 DO - 10.1016/j.euromechsol.2025.105739 UR - https://m2.mtmt.hu/api/publication/36190863 ID - 36190863 LA - English DB - MTMT ER - TY - CONF AU - Plavecz, Lambert AU - Karap, Attila AU - Berezvai, Szabolcs ED - Barabás, István TI - Irányfüggő poliszilícium anyagmodellek összehasonlítása MEMS strukturális elemek mechanikai modellezésénél T2 - OGÉT 2025 - XXXIII. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Nagyvárad T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 33. PY - 2025 SP - 397 EP - 402 PG - 6 UR - https://m2.mtmt.hu/api/publication/36131618 ID - 36131618 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Barney, C.W. AU - Berezvai, Szabolcs AU - Chau, A.L. AU - Kwon, Y. AU - Pitenis, A.A. AU - McMeeking, R.M. AU - Valentine, M.T. AU - Helgeson, M.E. TI - Experimental observation of near-wall effects during the puncture of soft solids JF - SOFT MATTER J2 - SOFT MATTER VL - 20 PY - 2024 SP - 3806 EP - 3813 PG - 8 SN - 1744-683X DO - 10.1039/d3sm01216f UR - https://m2.mtmt.hu/api/publication/34832885 ID - 34832885 N1 - Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA 93106, United States Department of Mechanical Engineering, University of California Santa Barbara, Santa Barbara, CA 93106, United States Department of Applied Mechanics, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Müegyetem rkp. 3., Budapest, H-1111, Hungary Materials Department, University of California Santa Barbara, Santa Barbara, CA 93106, United States Export Date: 3 May 2024 CODEN: SMOAB Correspondence Address: Valentine, M.T.; Department of Mechanical Engineering, United States; email: mtvale@ucsb.edu Correspondence Address: Helgeson, M.E.; Department of Chemical Engineering, United States; email: helgeson@ucsb.edu AB - Performing conventional mechanical characterization techniques on soft materials can be challenging due to issues such as limited sample volumes and clamping difficulties. Deep indentation and puncture is a promising alternative as it is an information-rich measurement with the potential to be performed in a high-throughput manner. Despite its promise, the method lacks standardized protocols, and open questions remain about its possible limitations. Addressing these shortcomings is vital to ensure consistent methodology, measurements, and interpretation across samples and labs. To fill this gap, we examine the role of finite sample dimensions (and by extension, volume) on measured forces to determine the sample geometry needed to perform and unambiguously interpret puncture tests. Through measurements of puncture on a well-characterized elastomer using systematically varied sample dimensions, we show that the apparent mechanical response of a material is in fact sensitive to near-wall effects, and that additional properties, such as the sliding friction coefficient, can only be extracted in the larger dimension case where such effects are negligible. © 2024 The Royal Society of Chemistry. LA - English DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs AU - Köpeczi-Bócz, Ákos Tamás AU - Sándor, Tibor AU - Kun, László Ákos AU - Szilágyi, Brigitta ED - Zufferey, J.D. ED - Langie, G. ED - Tormey, R. ED - Nagy, B.V. TI - Intervention in engineering students' maths education to overcome the aftermath of distance learning T2 - SEFI 2024 - 52nd Annual Conference of the European Society for Engineering, Proceedings PB - European Society for Engineering Education (SEFI) CY - Bruxelles SN - 9782873520274 PY - 2024 SP - 68 EP - 77 PG - 10 DO - 10.5281/zenodo.14254868 UR - https://m2.mtmt.hu/api/publication/35660380 ID - 35660380 AB - During the pandemic, many people in secondary school failed to acquire solid and profound knowledge. Teaching maths in remote education with distance learning has been a challenge for both teachers and students. In engineering higher education, several years after the pandemic, we are seeing problems that are having an impact on the overall education not only in the basic subjects but in further engineering subjects. There is a need for an intervention programme that can be applied effectively in large-scale courses where the number of students exceeds 100. Recently, we have created supplementary courses to help students learn the advanced Calculus material more effectively, while ensuring that they can catch up with their secondary school knowledge at their own pace. This research aims to analyse the changes in student performance of first-year student during the first two semesters of university math courses (Calculus 1 and 2). In our research, we investigated three different groups of students: the “2018 group” studied math traditionally, while the “2020 group” took online education at the end of high school and at the beginning of their university studies. Finally, the “2022 group” spent two years in high school at home in distance learning but started in-person education at the university and had significant problems during the first semester. Therefore, those students participated in an intervention programme. The performance analysis after Calculus 2 shows that we have succeeded in developing an inclusive pedagogical programme that we intend to further develop in the future to reduce drop-out. © 2024 SEFI 2024 - 52nd Annual Conference of the European Society for Engineering, Proceedings: Educating Responsible Engineers. All rights reserved. LA - English DB - MTMT ER - TY - CHAP AU - Kun, László Ákos AU - Cziráki, Szabina AU - Sándor, Tibor AU - Weiszburg, Tamás AU - Szabó, István AU - Berezvai, Szabolcs AU - Szilágyi, Brigitta ED - Zufferey, J.D. ED - Langie, G. ED - Tormey, R. ED - Nagy, B.V. TI - Student research societies. the widest form of talent development TS - the widest form of talent development T2 - SEFI 2024 - 52nd Annual Conference of the European Society for Engineering, Proceedings PB - European Society for Engineering Education (SEFI) CY - Bruxelles SN - 9782873520274 PY - 2024 SP - 661 EP - 672 PG - 12 DO - 10.5281/zenodo.14254846 UR - https://m2.mtmt.hu/api/publication/35660383 ID - 35660383 AB - The form of talent development in higher education has existed for over seven decades and has consistently adapted to educational changes and met challenges. The Student Research Societies (SRS) were initiated by talented students who, with the help of their mentors, want to achieve more than what regular education could offer. The inception was followed by dynamic horizontal and vertical expansion. Nowadays, more than 10, 000 students participate in the scientific student society movement in Hungary. A legally codified structure deeply embedded in higher education has emerged. Students prepare scientific papers on topics of their choice with scholarly ambition, engage in research group activities, and present their findings at institutional SRS events. Based on recommendations from a professional jury, authors of worthy papers can participate in the biennial national conference. The National Conference of Student Research Societies (NCSRS) hosts competitions in 16 thematic sections accompanied by numerous community programs. Since 2023, the SRS has become an international event within the framework of the European Engineering Learning Innovation and Science Alliance program. The SRS is a HIP that significantly enhances both students' learning experiences and outcomes, enriching many with the joy of research and scientific collaboration. This paper examines the last decade of the Technological Sciences Section, analyzing the satisfaction surveys of the 2019, 2021, and 2023 NCSRS events. We compare the measurement results of the online event held during the pandemic in 2021 with those before and after COVID-19, examining how the pandemic has impacted scientific student association activities. © 2024 SEFI 2024 - 52nd Annual Conference of the European Society for Engineering, Proceedings: Educating Responsible Engineers. All rights reserved. LA - English DB - MTMT ER - TY - CONF AU - Piri, Barnabás AU - Berezvai, Szabolcs TI - Elliptikus héjak átpattanását meghatározó kritikus paraméterek numerikus és kísérleti vizsgálata T2 - OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 32. PY - 2024 SP - 321 EP - 326 PG - 6 UR - https://m2.mtmt.hu/api/publication/34832711 ID - 34832711 LA - Hungarian DB - MTMT ER - TY - CONF AU - Plavecz, Lambert AU - Karap, Attila AU - Berezvai, Szabolcs TI - Ütközési sokk hatásainak modellezése MEMS szenzorban T2 - OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 32. PY - 2024 SP - 327 EP - 332 PG - 6 UR - https://m2.mtmt.hu/api/publication/34826634 ID - 34826634 AB - Jelen tanulmány részei egy egyszerűsített MEMS gyorsulásmérő szenzor padlóra történő ejtésének végeselemes szimulációja, valamint az ütközés okozta sokk terjedésének és az ütközés szenzorstruktúrára gyakorolt hatásának vizsgálata. A folyamat gyors dinamikája explicit végeselemes szoftver alkalmazását követeli meg. A struktúrára gyakorolt hatást erősen befolyásolja a szenzor ejtésének szöge, a kontaktfelület nagysága és a padló anyaga. A sokk szenzorházon keresztüli terjedésére átviteli függvény illeszthető, amellyel a jelenség gyorsan és egyszerűen modellezhető. LA - Hungarian DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs AU - Kossa, Attila TI - Analyzing the compression of hyperelastic spheres T2 - 40th Danubia-Adria Symposium on Advances in Experimental Mechanics Book of Abstracts PB - Institute of Fundamental Technological Research of the Polish Academy of Sciences CY - Gdansk SN - 9788365550552 PY - 2024 SP - 50 EP - 51 PG - 2 UR - https://m2.mtmt.hu/api/publication/35424550 ID - 35424550 LA - English DB - MTMT ER - TY - CONF AU - Tomin, Márton AU - Lukács, Norbert AU - Berezvai, Szabolcs TI - Development of density-graded sandwich structures with in-situ foaming filaments in additive manufacturing T2 - Proceedings of the FOAMS 2024 Conference PY - 2024 SP - 1 EP - 7 PG - 7 UR - https://m2.mtmt.hu/api/publication/35808660 ID - 35808660 LA - English DB - MTMT ER - TY - JOUR AU - Virág, Lilla AU - Egedy, Attila AU - Varga, Csilla AU - Erdős, Gergely AU - Berezvai, Szabolcs AU - Kovács, László AU - Ulbert, Zsolt TI - Determination of the most significant rubber components influencing the hardness of natural rubber (NR) using various statistical methods JF - HELIYON J2 - HELIYON VL - 10 PY - 2024 IS - 3 PG - 19 SN - 2405-8440 DO - 10.1016/j.heliyon.2024.e25170 UR - https://m2.mtmt.hu/api/publication/34539439 ID - 34539439 N1 - Department of MOL Hydrocarbon and Coal Processing, Research Centre for Biochemical, Environmental and Chemical Engineering, Faculty of Engineering, University of Pannonia, Egyetem Str. 10, Veszprém, H8200, Hungary Department of Process Engineering, Research Centre for Biochemical, Environmental and Chemical Engineering, Faculty of Engineering, University of Pannonia, Egyetem Str. 10, Veszprém, H8200, Hungary Sustainability Solutions Research Lab, Research Centre for Biochemical, Environmental and Chemical Engineering, Faculty of Engineering, University of Pannonia, Egyetem Str. 10, Veszprém, H8200, Hungary ECon Engineering Kft, Kondorosi út 3, Budapest, H1116, Hungary Department of Applied Mechanics, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., Budapest, H-1111, Hungary Export Date: 18 March 2024 Correspondence Address: Virág, L.; Department of MOL Hydrocarbon and Coal Processing, Egyetem Str. 10, Hungary; email: virag.lilla@mk.uni-pannon.hu LA - English DB - MTMT ER - TY - CHAP AU - Zoltán, Kovács AU - András, Aninger AU - Berezvai, Szabolcs TI - Improved hyperelastic material characterization using intelligent measurement data pre-processing T2 - 40th Danubia-Adria Symposium on Advances in Experimental Mechanics Book of Abstracts PB - Institute of Fundamental Technological Research of the Polish Academy of Sciences CY - Gdansk SN - 9788365550552 PY - 2024 SP - 122 EP - 123 PG - 2 UR - https://m2.mtmt.hu/api/publication/35424556 ID - 35424556 LA - English DB - MTMT ER - TY - CHAP AU - Aninger, András AU - Kovács, Péter AU - Németh, Zsolt AU - Erdős, Gergely AU - Kovács, László AU - Varga, Csilla AU - Egedy, Attila AU - Szász, Marcell AU - Berezvai, Szabolcs ED - Kossa, Attila TI - Numerical investigation of the relation of Shore A hardness and hyperelastic parameters for different types of rubbers T2 - Book of Abstracts. 39th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2023 Hungary PB - Gépipari Tudományos Egyesület (GTE) CY - Siófok SN - 9789634219279 PY - 2023 SP - 128 EP - 129 PG - 2 UR - https://m2.mtmt.hu/api/publication/34175087 ID - 34175087 LA - English DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs AU - Köpeczi-Bócz, Ákos Tamás AU - Sipos, B. AU - Szilágyi, Brigitta ED - Reilly, G. ED - Murphy, M. ED - Nagy, B.V. ED - Jarvinen, H.M. TI - Changes in First-Year Engineering Students' Performance in Mathematics and Engineering Subjects at Different Stages of Distance Learning T2 - Proceedings of the 51st Annual Conference of the European Society for Engineering Education, SEFI 2023 PB - European Society for Engineering Education (SEFI) CY - Brüsszel SN - 9782873520267 PY - 2023 SP - 183 EP - 191 PG - 9 DO - 10.21427/CDZ5-E329 UR - https://m2.mtmt.hu/api/publication/34470974 ID - 34470974 AB - Covid pandemic was unprecedented in modern education but is not expected to be unique, therefore increased attention should be paid to accurately analyse its effects on education. Calculus is an important undergraduate mathematics course in engineering programmes, which gives the foundation for engineering subjects like mechanics or electronics. Unfortunately, recent experiences show that the performance of students admitting after the pandemic has deteriorated dramatically in recent years. This research aims to analyse the changes in performance and attitudes of first-year students in the aftermath of the pandemic. In our research, we investigated the performance and learning habits of three groups of first-year mechatronics and energy engineering students during Calculus-1 and the related Mechanics subject. The “2018 group” studied maths traditionally, whereas the “2020 group” took online education in the last months of high school and the first year of university. The “2022 group” spent two years of high school at home in remote learning (the significant 10-11th grades, for maths competence), but received in-person education at the university. Learning habit and performance of the students were monitored using EduBase online educational platform. The results of both the qualitative and quantitative analysis have revealed that online education during the pandemic changed the learning habits of the group in 2020 and had only slight effects on their performance in Calculus and Statics. However, for group 2022, where the pandemic affected high-school maths studies, the performance at the university has fallen dramatically resulting in an increased drop-out rate after the first semester. © 2023 SEFI 2023 - 51st Annual Conference of the European Society for Engineering Education: Engineering Education for Sustainability, Proceedings. All Rights Reserved. LA - English DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs AU - Barney, Christopher AU - McMeeking, Robert M. AU - Helgeson, Matthew E. AU - Valentine, Megan T. ED - Kossa, Attila TI - Applicability of CEL method for the numerical analysis of indentation of soft gels T2 - Book of Abstracts. 39th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2023 Hungary PB - Gépipari Tudományos Egyesület (GTE) CY - Siófok SN - 9789634219279 PY - 2023 SP - 122 EP - 123 PG - 2 UR - https://m2.mtmt.hu/api/publication/34175082 ID - 34175082 LA - English DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs ED - Baksa, Attila ED - Bertóti, Edgár ED - Kiss, László Péter TI - Hogyan teljesít a mechanika alaptárgyakon egy chatbot? T2 - XIV. Magyar Mechanikai Konferencia, Az előadások összefoglalói PB - Miskolci Egyetem, Gépészmérnöki és Informatikai Kar CY - Miskolc-Egyetemváros SN - 9789633583012 PY - 2023 SP - 1 PG - 1 UR - https://m2.mtmt.hu/api/publication/34122037 ID - 34122037 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Berezvai, Szabolcs AU - McMeeking, Robert M. ED - Baksa, Attila ED - Bertóti, Edgár ED - Kiss, László Péter TI - Prony-sor alapú numerikus inverziós módszer viszkoelasztikus anyagok leírásához T2 - XIV. Magyar Mechanikai Konferencia, Az előadások összefoglalói PB - Miskolci Egyetem, Gépészmérnöki és Informatikai Kar CY - Miskolc-Egyetemváros SN - 9789633583012 PY - 2023 SP - 1 PG - 1 UR - https://m2.mtmt.hu/api/publication/34122021 ID - 34122021 LA - Hungarian DB - MTMT ER - TY - CONF AU - Kovács, László AU - Berezvai, Szabolcs AU - Fodor, Balázs AU - Erdős, Gergely TI - Introduction of the concept of Intelligent Material Characterization System for reinforced and unreinforced polymeric materials for simulation purposes T2 - Book of Abstracts of NAFEMS Nordic Seminar - Materials Modelling for Engineering Simulations – Current Practice and Future Challenges PY - 2023 SP - 1 EP - 1 PG - 1 UR - https://m2.mtmt.hu/api/publication/33714499 ID - 33714499 LA - English DB - MTMT ER - TY - JOUR AU - Kwon, Younghoon AU - Seo, Soyoung E. AU - Lee, Jaejun AU - Berezvai, Szabolcs AU - Read de Alaniz, Javier AU - Eisenbach, Claus D. AU - McMeeking, Robert M. AU - Hawker, Craig J. AU - Valentine, Megan T. TI - 3D-printed polymer foams maintain stiffness and energy dissipation under repeated loading JF - COMPOSITES COMMUNICATIONS J2 - COMPOS COMMUN VL - 37 PY - 2023 PG - 5 SN - 2452-2139 DO - 10.1016/j.coco.2022.101453 UR - https://m2.mtmt.hu/api/publication/33533259 ID - 33533259 N1 - Funding Agency and Grant Number: MRSEC Program of the National Science Foundation (NSF); U.S. Army Research Office [DMR 1933487]; Hungarian National Research, Development and Innovation Office [DMR 1720256 (IRG-3)]; University of California, Santa Barbara; Uni- versity of California, Office of the President and Mechanical Test Lab of the UCSB Mechanical Engineering Department; NSF; [W911NF-19-2-0026]; [NKFI-PD 137806] Funding text: This work was supported by the MRSEC Program of the National Science Foundation (NSF) under Award No. DMR 1720256 (IRG-3). SES and CJH acknowledge support by the U.S. Army Research Office under Cooperative Agreement W911NF-19-2-0026 for the Institute for Collaborative Biotechnologies. This research was supported by the Hungarian National Research, Development and Innovation Office (Grant no. NKFI-PD 137806). The authors acknowledge the use of the Microfluidics Laboratory within the California NanoSystems Institute, supported by the University of California, Santa Barbara and the University of California, Office of the President and Mechanical Test Lab of the UCSB Mechanical Engineering Department, and leveraged resources provided by NSF Award No. DMR 1933487. Authors appreciate useful discussions with Christopher Barney, Juan Manuel Uruena, David Bothman and Kirk Fields. LA - English DB - MTMT ER - TY - CHAP AU - Piri, Barnabás AU - Berezvai, Szabolcs ED - Kossa, Attila TI - Experimental and numerical investigation of elliptical shell snap-through T2 - Book of Abstracts. 39th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2023 Hungary PB - Gépipari Tudományos Egyesület (GTE) CY - Siófok SN - 9789634219279 PY - 2023 SP - 24 EP - 25 PG - 2 UR - https://m2.mtmt.hu/api/publication/34175075 ID - 34175075 LA - English DB - MTMT ER -