Results 111 to 120 of about 431,285 (310)
Advances in Civil EngineeringCement concrete, as an extensively used engineering material, is omnipresent in various infrastructure projects such as bridges and roads. However, these structures often need to operate for extended periods under varying and harsh environmental ...
Chengyun Tao +3 more
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Crystalline-silicon reliability lessons for thin-film modules [PDF]
The reliability of crystalline silicon modules has been brought to a high level with lifetimes approaching 20 years, and excellent industry credibility and user satisfaction.
Ross, R. G., Jr.
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A novel method for fatigue testing of MEMS devices containing movable elements [PDF]
, 2007 In this paper we present an electronic circuit for position or capacitance estimation of MEMS electrostatic actuators based on a switched capacitor technique.
Rencz, M., Szucs, Z.
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Advanced Engineering Materials, EarlyView.Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir +5 more
wiley +1 more source
Time-varying Reliability Analysis of Planetary Gear Reducers Based on Fatigue Failure
Jixie chuandongWith technological innovation and social development, the reliability of planetary gear reducers is required to be higher and higher. However, the reliability of planetary gear reducers changes due to fatigue factors in its operation.
Luo Xundiao, Liu Ganhua
doaj
Effect of grinding on the fatigue life of titanium alloy (5 Al-2.5 Sn) under dry and wet conditions [PDF]
The principal factors in the performance of aerospace materials are strength-to-weight ratio, fatigue life, fracture toughness, survivability and, of course, reliability. Machining processes and, in particular, grinding under adverse conditions have been
Jeelani, Shaik +2 more
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Discriminating between chronic fatigue syndrome and depression: a cognitive analysis
, 2001 Background: chronic fatigue syndrome (CFS) and depression share a number of common symptoms and the majority of CFS patients meet lifetime criteria for depression. While cognitive factors seem key to the maintenance of CFS and depression, little is known
Moss-Morris, Rona, Petrie, Keith J.
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Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source
Reliability and Validity of Ratings of Perceived Exertion in Persons With Multiple Sclerosis [PDF]
, 2016 Objective: To test the reliability and validity of using the Borg rating of perceived exertion (RPE) scale (ratings 6e20) in persons with multiple sclerosis (PwMS). Design: Nonrandomized repeated measures. Setting: Research laboratory.
Cleland, Brice T. +3 more
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Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration
Advanced Functional Materials, EarlyView.Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley +1 more source