Results 91 to 100 of about 6,710,712 (351)

Front Propagation in the Pearling Instability of Tubular Vesicles [PDF]

, 1995
Recently Bar-Ziv and Moses discovered a dynamical shape transformation induced in cylindrical lipid bilayer vesicles by the action of laser tweezers. We develop a hydrodynamic theory of fluid bilayers in interaction with the surrounding water and argue ...
Goldstein, R. E., Nelson, P., Powers, T., Seifert, U.   +3 more
core   +5 more sources

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

Advanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee, Eunbyeol Kim, Kyongtae Choi, Minjun Song, Sunmin Jang, Dongwhi Choi, Donghyun Seo, Min‐Gyu Lee, Younghoon Lee   +8 more
wiley   +1 more source

Effect of Different Liner Materials on Elastohydrodynamic Lubrication of Oil-water Two-phase Lubricated Rolling Mill Oil Film Bearing

Jixie chuandong, 2017
Taking the rolling mill oil film bearing as the research object,the model of oil- water two-phase flow of elastohydrodynamic lubrication is established by using with thermal effect of the Reynolds equation. The effects of three common liner materials are
Wang Youqiang, Wang Tao, Xu Caihong, Wang Limei, Zhang Tonggang   +4 more
doaj  

Research on the Lubrication and Friction Characteristics of New Water-Lubricated Bearings Made of PEEK Material in Salt-Sand Water Environments

Lubricants
During the actual service process, water-lubricated bearings on ships are often in complex operating environments such as low speed, heavy load and salt-sand water areas.
Huabing Jing, Nan Wang, Jiayun Qi, Zhenfeng Zhang, Mingjin Zhang, Jia Wang, An Liu, Yu Cheng, Peng Wang   +8 more
doaj   +1 more source

Effects of Particulate and Fibrous Carbon Filler Combinations on the Tribological Behavior of a Polyacetal Composite under Water Lubrication

Tribology Online, 2019
This study focused on the effects of combinations of fillers comprising particulate and fibrous carbon materials on the tribological behaviors of a polyacetal (POM) composite under water lubrication.
Hiroaki Yoshida, Kei Shibata, Takeshi Yamaguchi, Kazuo Hokkirigawa   +3 more
doaj   +1 more source

Space shuttle orbiter auxiliary power unit development challenges [PDF]

, 1985
When the flying spacecraft was approved for development, a power unit for the hydraulic system had to be developed. Unlike other systems on the orbiter, there was no precedent in earlier spacecraft for a hydraulic system nor for the power unit to drive ...
Lance, R., Weary, D.
core   +1 more source

Effect of Surface‐Lubricant Compatibility on Bubble Formation in Lubricant‐Infused Surfaces

Advanced Materials Interfaces, EarlyView.
Lubricant‐infused surfaces reduce drag partly through bubbles that form when lubricant depletes. Using laser‐textured steel infused with silicone oil, we show that microbubble nucleation occurs even on surfaces fully wetted by the lubricant, regardless of chemistry.
Leo James, Isaac J. Gresham, Georg Schnell, Hermann Seitz, Chiara Neto   +4 more
wiley   +1 more source

Bistable Wetting States on a Smooth Surface

Advanced Materials Interfaces, EarlyView.
Droplets on non‐textured surfaces typically exhibit a monostable wetting state. Here, we show that droplets can exhibit bistability even without surface texture. We investigate water droplets on a smooth substrate immersed in oil. We find that molecular modulation causes the droplet states to bifurcate into either a sticking or a repellent state ...
Mizuki Tenjimbayashi, Shunto Arai
wiley   +1 more source

Tribological performance and lubrication mechanism of polyacrylamide as a high-efficiency water-based lubricant additive for titanium alloys

Scientific Reports
Titanium alloys present challenges in terms of lubrication due to their difficult-to-machine nature, which necessitates the development of sustainable and environmentally friendly lubricants.
Jinzhu Tang, Shuqing Chen, Wenhui Cao, Hongmei Xie, Xin Quan, Qi Ding   +5 more
doaj   +1 more source

Resolved simulations of submarine avalanches with a simple soft-sphere / immersed boundary method [PDF]

, 2013
Physical mechanisms at the origin of the transport of solid particles in a fluid are still a matter of debate in the physics community. Yet, it is well known that these processes play a fundamental role in many natural configurations, such submarines ...
Bonometti, Thomas, Izard, Edouard, Lacaze, Laurent   +2 more
core