Results 111 to 120 of about 315,058 (351)

The effect of load in a contact with boundary lubrication [PDF]

The effect of the transition load on the wear in a contact with boundary lubrication was investigated. An experimental method was developed for this purpose, and parameters affecting the boundary lubrication under industrial operating conditions were ...
Daronnat, M., Georges, J. M., Lamy, B., Moro, S.   +3 more
core   +1 more source

Stryker Osteonics: Prosthetic Knee Joint [PDF]

, 2008
We examine, within a simple bearing model of a knee joint that only consideres pure sliding, the effect of the presence of a small vertical hole in the load area on the fluid film properties.
Hjorth, P.G., King, J., Korobeinikov, A., Mason, J., McKee, S., Wilson, S.   +5 more
core  

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Rapid photo‐responsive dynamic disulfide strategy for accessing self‐healing, reconfigurable shape of high‐strength shape memory polyurethane

Responsive Materials
Enabling soft shape memory polyurethane (SMPU) with self‐healing is an effective strategy to extend its service life; however, the tradeoff between high mechanical strength and rapid self‐healing to meet the practical applications remains a challenge ...
Qingxiang Zhang, Jing Yang, Kai Zhou, Nan Zhang, Xianqiang Pei, Xinrui Zhang, Shoubing Chen, Heming Luo, Tingmei Wang, Qihua Wang, Yaoming Zhang   +10 more
doaj   +1 more source

Microstructural and component evolution of self-assembled nanoperiod multilayered carbon-copper films with deposition pressure

AIP Advances, 2017
Here, we report a facile synthesis method for the fabrication of various nanoperiod multilayers in carbon-copper films only by conveniently changing the deposition pressure from the reactive magnetron sputter process.
Weiqi Wang, Li Ji, Hongxuan Li, Yiman Zhao, Huidi Zhou, Jianmin Chen   +5 more
doaj   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

Advanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best, Gizem Karabiyik, Gerd Geerling, Sarah Barbara Zwingelberg, Gregor Lang, Martin Humenik   +5 more
wiley   +1 more source

Super wear-resistant WB4–B super-hard ceramic by in-situ formed lubrication film in high moisture

Journal of Advanced Ceramics
Only a few materials demonstrate ultralow wear performance in specific fragile environments. We propose a self-adaptive wear strategy to achieve excellent wear resistance at high moisture contents through a super-hard substrate and an in situ lubrication
Guixin Hou, Wenyuan Chen, Qichun Sun, Juanjuan Chen, Jiao Chen, Hui Tan, Jun Cheng, Shengyu Zhu, Jun Yang, Weimin Liu   +9 more
doaj   +1 more source

Considerations on the lubrication of spacecraft mechanisms [PDF]

, 1983
Space tribology and a number of precepts to guide designers in its application are discussed. Of the many techniques available all, without exception, have limitations in performance.
Briscoe, M., Todd, M. J.
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Lubrication and Lubricants [PDF]

Nature, 1937
openaire   +4 more sources