Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Onur Altuntaş"'
Autor:
Onur ALTUNTAŞ
Publikováno v:
Gazi Üniversitesi Fen Bilimleri Dergisi, Vol 11, Iss 3, Pp 850-856 (2023)
In this study, metal matrix hybrid composites obtained by adding B4C and graphene nanoplatelets (GNPs) powders as reinforcement elements to Al7075 powders were produced by powder metallurgy (P/M) method. Mixture powders prepared by supplementing Al70
Externí odkaz:
https://doaj.org/article/295502841ea2405e99892a63ff6b001e
Publikováno v:
Children, Vol 11, Iss 4, p 464 (2024)
As technology continues to develop, children are spending more time in front of screens, which can lead to significant problems. For children aged 5 years and above, screen time of 2 or more hours per day on average is considered problematic. This st
Externí odkaz:
https://doaj.org/article/c2792011362b400f9878e2dd849a4a03
Autor:
Onur ALTUNTAŞ
Publikováno v:
Gazi Üniversitesi Fen Bilimleri Dergisi, Vol 10, Iss 2, Pp 195-202 (2022)
In this study, Charpy impact test specimens were prepared by cutting Al 7075 alloy according to ASTM-E23 standards. The prepared test specimens were dissolved in a single-phase region for 1 hour at 480°C in vacuum atmosphere and artificially aged at
Externí odkaz:
https://doaj.org/article/f4bc2f5b9c9d44aeaf6f437ee16808a8
Autor:
Onur Altuntaş, Ahmet Güral
Publikováno v:
International Journal of Automotive Science and Technology, Vol 4, Iss 3, Pp 193-197 (2020)
In this study, 1.5% by weight of natural graphite powders were added to Atomet 1001 pure iron powders and unalloyed high carbon powder metallurgy steel specimens were obtained. After the mixture was uniaxial pressed at room temper-ature and 700 Mpa p
Externí odkaz:
https://doaj.org/article/ce8480c3bff2445f9ebabab7ac9e41a1
Publikováno v:
Gazi Üniversitesi Fen Bilimleri Dergisi, Vol 8, Iss 3, Pp 671-680 (2020)
In this study, the effect of annealing temperatures on the deformation aging of 0.4% C steels produced by Powder Metallurgy (PM) method was investigated. For this purpose, 0.4% by weight natural graphite powder and 0.3% by weight zinc stearate are a
Externí odkaz:
https://doaj.org/article/f3d837bdd93c44bc85f54bbd0447a95a
Publikováno v:
Occupational Therapy International, Vol 2021 (2021)
Objective. The aim of the study was to investigate the reliability and validity of the Turkish version of the Participation Scale (P-Scale). Methods. A total of 152 students, with a mean age of 20.27±2.19, participated in the study. Sociodemographic
Externí odkaz:
https://doaj.org/article/1ef02a97603d48ad9b8d51a6b2c0ca5d
Publikováno v:
Ironmaking & Steelmaking. :1-5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f42d9b199b2821095ffc58d5e567c2a9
https://doi.org/10.1080/03019233.2022.2156706
https://doi.org/10.1080/03019233.2022.2156706
Publikováno v:
Politeknik Dergisi. 25:1281-1285
Bu çalışmada farklı karbon oranlarına sahip Toz Metalurjisi (TM) çeliklere nikel elementi ilave edilerek darbe tokluk özellikleri incelenmiştir. Bu amaçla saf demir tozuna sırasıyla ağırlıkça % 0,4 - 0,8 - 1,2 oranlarında doğal grafi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe929fa579d7cc201867368ddd08095
https://doi.org/10.2339/politeknik.963563
https://doi.org/10.2339/politeknik.963563
Publikováno v:
International Journal of Metalcasting. 17:1340-1349
It is known that the strength and hardness of Hadfield steel increases by strain hardening when subjected to some deformation. In this study, the specimens of conventional Hadfield steel were heat treated by solid solution treatment followed by quenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cbf8d3d3f521503de2ed860f74d7d41
https://doi.org/10.1007/s40962-022-00860-3
https://doi.org/10.1007/s40962-022-00860-3
Autor:
Serkan Taş, Seval Yılmaz, Mehmet Ruhi Onur, Abdullah Ruhi Soylu, Onur Altuntaş, Feza Korkusuz
Publikováno v:
Acta Orthopaedica et Traumatologica Turcica, Vol 51, Iss 1, Pp 54-59 (2017)
Objective: The purpose of this study is to assess the effect and correlation of gender, body mass index (BMI) and quadriceps femoris (QF) muscle strength on patellar tendon (PT) thickness and stiffness in healthy sedentary individuals. Methods: This
Externí odkaz:
https://doaj.org/article/592f820d716247d5b1bb2346f9780739