@misc{MTMT:34889588, title = {The Effect of the Layup on the Stability of Composite Cylindrical Shells}, url = {https://m2.mtmt.hu/api/publication/34889588}, author = {Máté, Péter and Szekrényes, András}, unique-id = {34889588}, year = {2024}, orcid-numbers = {Szekrényes, András/0000-0002-2018-4471} } @misc{MTMT:34889534, title = {Stability analysis of thin cylindrical shells under pure and three-point bending}, url = {https://m2.mtmt.hu/api/publication/34889534}, author = {Máté, Péter and Szekrényes, András}, unique-id = {34889534}, year = {2024}, orcid-numbers = {Szekrényes, András/0000-0002-2018-4471} } @misc{MTMT:34889530, title = {Measurement of the tension loss in a cable traveling over a pulley, for low-speed applications}, url = {https://m2.mtmt.hu/api/publication/34889530}, author = {Máté, Péter and Szekrényes, András}, unique-id = {34889530}, year = {2024}, orcid-numbers = {Szekrényes, András/0000-0002-2018-4471} } @article{MTMT:34886780, title = {Optimization of ultra-precision CBN turning of AISI D2 using hybrid GA-RSM and Taguchi-GRA statistic tools}, url = {https://m2.mtmt.hu/api/publication/34886780}, author = {Tura, Amanuel and Elly, Ogutu Isaya and Adizue, Ugonna and Farkas, Balázs Zsolt and Takács, Márton}, doi = {10.1016/j.heliyon.2024.e31849}, journal-iso = {HELIYON}, journal = {HELIYON}, volume = {10}, unique-id = {34886780}, abstract = {Ultra-precision turning is a crucial process in the manufacturing industry as it helps to produce parts with high dimensional accuracy, surface finish, and tolerance. The process is similar to traditional turning but is carried out under special circumstances to achieve greater precision and surface finish. The process can be applied to conventional structural materials, but the demand for machining hardened steels is increasing. The optimization of ultra-precision turning of AISI D2 using cubic boron nitride (CBN) tools is a crucial aspect in the field of high-quality machining. This study aims to evaluate the performance of the process and identify the optimal parameters that result in the best quality components while using a CBN tool's ultra-precision turning of AISI D2. Ultra-precision turning process factors such as cutting speed, feed, and depth of cut were experimentally investigated to enhance the response output, such as surface roughness and cutting force components. The full factorial experimental design was used for determining the process characteristics under different conditions, and experimental results were applied to search for the optimum response of machining performance. The optimization process was done by combining the hybrid genetic algorithm-response surface methodology (GA-RSM) and the Taguchi-grey relational analysis (GRA) statistical tools. These methods are useful in situations where the relationship between the input variables and the output responses is complex and non-linear. The results showed that a hybrid GA-RSM approach, combined with Taguchi-GRA statistical analysis, can effectively find optimal process parameters, leading to the best combination of surface roughness and cutting force. In hybrid Taguchi - GRA, the optimal cutting conditions were found to be a cutting speed of 175 m/min, a feed of 0.025 mm, and a depth of cut of 0.06 mm. The findings of this study provide valuable insights for the optimization of ultra-precision CBN turning operations, contribute to the development of precision manufacturing technology, and can be used as a reference for similar machining processes. © 2024}, keywords = {Genetic algorithm; Finish hard turning; Grey relational analyses (GRA); 1-1 optimization; AISI D2 (62HRC); Hybrid optimization model; Ultra -precision machining}, year = {2024}, eissn = {2405-8440}, pages = {e31849}, orcid-numbers = {Elly, Ogutu Isaya/0009-0000-9857-1431; Adizue, Ugonna/0000-0002-6462-4731; Farkas, Balázs Zsolt/0000-0002-3784-7972; Takács, Márton/0000-0001-6882-1540} } @CONFERENCE{MTMT:34884734, title = {Szorpciós izoterma mérőállomás megtervezése és beüzemelése}, url = {https://m2.mtmt.hu/api/publication/34884734}, author = {Poós, Tibor and Sor, Levente}, booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia}, unique-id = {34884734}, abstract = {Munkánkcélja adszorpciós és deszorpciós izoterma függvények létrehozásához szükséges pontok méréséhez mérőállomás tervezése és megépítése. Aszorpciós izoterma az anyag egyensúlyi nedvességtartalmához (𝑋𝑒𝑞) és hőmérsékletéhez (𝑇𝑃) tartozó egyensúlyi relatív vízgőznyomást(𝑎𝑤)írja le.Aszorpciós izoterma lehetővé teszi az adott anyagra és levegő állapotjelzőre jellemző tulajdonságok meghatározását, úgy, mint az egyensúlyi nedvességtartalom vagy a kritikus nedvességtartalom értéke. Továbbá következtetéseket lehet tenni az anyag porozitására vonatkozóan is, továbbá segítségével számítható az anyagra jellemző izoszterikus hő is.}, year = {2024}, pages = {333-338} } @inproceedings{MTMT:34884362, title = {Quantified non-energy benefit indicators in building retrofits: review papers}, url = {https://m2.mtmt.hu/api/publication/34884362}, author = {Khorshidi, Boreyheh and Csoknyai, Tamás}, booktitle = {EXPRES 2024 - 14th International Symposium on Exploitation of Renewable Energy Sources and Efficiency}, unique-id = {34884362}, year = {2024}, pages = {65-69} } @misc{MTMT:34883914, title = {Sono-hydrogen: a theoretical investigation of its energy intensity}, url = {https://m2.mtmt.hu/api/publication/34883914}, author = {Abu Taleb Al-awamleh, Ahmad and Hegedűs, Ferenc}, unique-id = {34883914}, year = {2024}, orcid-numbers = {Hegedűs, Ferenc/0000-0002-8693-1660} } @CONFERENCE{MTMT:34879402, title = {Virtuális beteg adatbázis létrehozása érrendszeri modellel}, url = {https://m2.mtmt.hu/api/publication/34879402}, author = {Viharos, Márta Judit and Wéber, Richárd and Gyürki, Dániel László and Paál, György}, booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia}, unique-id = {34879402}, year = {2024}, pages = {460-464}, orcid-numbers = {Wéber, Richárd/0000-0002-2556-3841; Paál, György/0000-0003-1426-2215} } @{MTMT:34877265, title = {Examining the homogeneity of financial markets in a low interest rate environment - A cluster analysis of the changes of financial assets in the eurozone}, url = {https://m2.mtmt.hu/api/publication/34877265}, author = {Tatay, Tibor and Orlovits, Zsanett and Zsuzsanna, Novák}, booktitle = {Economic, diplomatic and cultural challenges}, unique-id = {34877265}, year = {2024}, pages = {11-32} } @misc{MTMT:34876931, title = {Corrosion of laser welded austenitic stainless steels}, url = {https://m2.mtmt.hu/api/publication/34876931}, author = {Breznay, Csaba and Varbai, Balázs}, unique-id = {34876931}, year = {2024}, orcid-numbers = {Varbai, Balázs/0000-0003-0497-7292} }