Zobrazeno 1 - 10
of 10 127
pro vyhledávání: '"Film thickness"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract Water film thickness (WFT) is a primary factor influencing the flowability of cement mortar and gypsum slurry. However, conventional WFT calculation models have overlooked the impact of fiber surface properties on flowability. This study add
Externí odkaz:
https://doaj.org/article/dae17132077a40b4ba93a6eaefa9c2b0
Publikováno v:
Guoji Yanke Zazhi, Vol 24, Iss 8, Pp 1345-1348 (2024)
AIM: To assess the gap between the peak of the base curve to the surface of the cornea, as well as examines the correlation between the thickness of the tear film and the fitting of the orthokeratology lens through optical coherence tomography(OCT),
Externí odkaz:
https://doaj.org/article/a9ad3adb8bd34e13be12a2cbd0f33cbf
Autor:
Taisuke Maruyama, Daichi Kosugi, Shunsuke Iwase, Masayuki Maeda, Ken Nakano, Satoshi Momozono
Publikováno v:
Frontiers in Mechanical Engineering, Vol 10 (2024)
The authors have previously developed the electrical impedance method which simultaneously measure the thickness and breakdown ratio of oil films in EHD (elastohydrodynamic) contacts. Furthermore, using a ball-on-disc-type apparatus, the authors have
Externí odkaz:
https://doaj.org/article/8c41fe391d904c54847a3040938bc0b0
Publikováno v:
International Journal of Thermofluids, Vol 24, Iss , Pp 100871- (2024)
In this work, numerical simulations are performed to predict two-phase annular flow of refrigerant R245fa inside a 3.4 mm diameter vertical channel. The VOF (Volume of Fluid) method implemented in an OpenFOAM solver is used to accurately track the va
Externí odkaz:
https://doaj.org/article/a30ac44a90b045caac17a9ceac48fb93
Publikováno v:
Industrial Lubrication and Tribology, 2024, Vol. 76, Issue 5, pp. 703-715.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/ILT-12-2023-0417
Autor:
Shigeyoshi Kawakita, Yuuichirou Tanikawa, Shinji Tanaka, Keiji Kyogoku, Masao Kikuchi, Hiroshi Yamamoto
Publikováno v:
Tribology Online, Vol 19, Iss 3, Pp 218-227 (2024)
In swash plate type axial piston pumps, slipper/swash plate sliding surfaces is subject to high fluctuating load. Therefore, the slippers are required to provide stable operation and reduce losses due to sliding. The behavior of the slipper fluctuate
Externí odkaz:
https://doaj.org/article/8886e70d069d4a799f3e25ba48c1d3cd
Publikováno v:
International Journal of Transportation Science and Technology, Vol 14, Iss , Pp 99-109 (2024)
The accurate estimation of tire-pavement friction, especially under wet conditions, is critical to ensure pavement safety. For this purpose, this paper develops a modified tire-pavement friction model which takes the effect of pavement texture and wa
Externí odkaz:
https://doaj.org/article/40e6954906944a4c8b92d948586a26bc
Publikováno v:
Cailiao Baohu, Vol 57, Iss 6, Pp 121-130 (2024)
In order to obtain coatings with low emissivity, most studies focus on the screening of resin and filler components. However, the influence of process parameters on emissivity during the coating preparation process was rarely studied, and the interac
Externí odkaz:
https://doaj.org/article/f71781c536ed4c78bc2948b56fbeb636
Autor:
Mamoru Tohyama, Yasuhiro Ohmiya, Michiru Hirose, Hiroki Matsuyama, Takuya Toda, Kenichi Hasegawa, Takaaki Onizuka, Hideaki Sato, Masahiro Yokoi, Norikazu Sato
Publikováno v:
Tribology Online, Vol 19, Iss 3, Pp 149-156 (2024)
High-speed deep-groove ball bearings for the eAxle of electric vehicles must adapt to higher rotational speed conditions, because eAxle motor speed increases to downsize the unit. Therefore, it is necessary to clarify the lubrication process of ball
Externí odkaz:
https://doaj.org/article/5536428443744f659c976a33660b7748