Zobrazeno 1 - 10
of 1 710
pro vyhledávání: '"change rate"'
Publikováno v:
Hecheng xiangjiao gongye, Vol 46, Iss 6, Pp 482-487 (2024)
Screw pump stator material was prepared with hydrogenated nitrile rubber as raw material, and the chemical aging damage of the screw pump stator material in different crude oil environment temperatures was studied by simulating real oil production en
Externí odkaz:
https://doaj.org/article/3b12323729b14c348b95ce4a448d4afb
Autor:
Feng Wang, Meifang Huang, Jingshun Liu, Ze Li, Yun Zhang, Shuang Ma, Hongxian Shen, Manh-Huong Phan
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 1064-1074 (2024)
This paper systematically studies the changes in the microstructure and magnetic properties of CoFeSiBNb series metallic fibers before and after AC annealing. The influence of current intensity on the magneto-impedance (MI) effect of the fibers is an
Externí odkaz:
https://doaj.org/article/b742e419707542899637e978cf5b13b4
Crack propagation kinetics under asymmetric cyclic loading for 316LN SS in high-temperature solution
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2115-2126 (2024)
Crack propagation rates (CPRs, or da/dN) of 316LN stainless steel (SS) in high-temperature solution under asymmetric cyclic loading conditions are experimentally determined, focusing primarily on the effect of load-rise time on crack propagation. The
Externí odkaz:
https://doaj.org/article/20e99068cecf42acb668b29d88e9f105
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03413- (2024)
In saline-alkali and coastal areas, cement soil faces various threats from salt erosion, and these environmental conditions can significantly impact the mechanical properties of cement soil. To counter external erosion, the addition of graphene oxide
Externí odkaz:
https://doaj.org/article/cc65821a61a94284a4d71d01af48c5eb
Publikováno v:
Platelets, Vol 35, Iss 1 (2024)
AbstractFluid shear plays a key role in hemostasis and thrombosis, and the purpose of this study was to investigate the effect of shear gradient change rate (SGCR) on platelet reactivity and von Willebrand factor (vWF) activity and its mechanism. In
Externí odkaz:
https://doaj.org/article/601ffb420c4641f68261435344f24089
Publikováno v:
Regenerative Therapy, Vol 26, Iss , Pp 1117-1123 (2024)
Introduction: Cell processing facilities are susceptible to environmental bacteria and must maintain sterile environments to safeguard cell products. This process involves circulating air through high-efficiency particulate air (HEPA) filters, which
Externí odkaz:
https://doaj.org/article/bc11bf913fa446408fa43eb41173b12f
Publikováno v:
Haiyang Kaifa yu guanli, Vol 41, Iss 4, Pp 84-96 (2024)
The estuarine delta is a densely populated and economically developed region, and its land use change research is of great significance for regional economic and social development. In this paper, the remote sensing images from 1987 to 2019 are class
Externí odkaz:
https://doaj.org/article/4a150ce4207b440292b38380c564c8f0
Publikováno v:
Environment International, Vol 190, Iss , Pp 108825- (2024)
There has been an increased concern on indoor air quality (IAQ) in residences since the majority of individuals’ time is mainly spent indoors. We inspected and measured indoor environmental parameters in 399 homes in northeast China in order to stu
Externí odkaz:
https://doaj.org/article/6690f21c05b44857aced09b0e3300a65
Publikováno v:
Hecheng xiangjiao gongye, Vol 47, Iss 2, Pp 141-146 (2024)
High fluorine content fluororubber (FKM) was used as the research object, the high temperature medium resistance of high fluorine content FKM vulcanizates in a variety of aero-engine lubricanting oils was investigated, and the changes in physical and
Externí odkaz:
https://doaj.org/article/21255829716b4be9b6fa8922567769f5
Autor:
Birhan Legese Gurmu, Mingi Kim, Chiyou Song, Sangwoon Lee, Yeonjin Kim, Eunhwan Kim, Yuri Choi, Sanghwan Bae, Ho-Hyun Kim, Sungroul Kim
Publikováno v:
Environmental Advances, Vol 15, Iss , Pp 100464- (2024)
Air infiltration, calcuated by air changes per hour (ACH) is a key factor in assessing the potential amount of air borne pollutants moving from outdoor into indoor spaces. We measured the natural ACH through fall, winter, spring, and summer (2 weeks/
Externí odkaz:
https://doaj.org/article/44fc91219bbd4cf398887be8256f773e