Results 131 to 140 of about 195,292 (270)
Advanced Science, EarlyView.Ultrathin oxide layer and ultraviolet absorbent are introduced into polyhedral oligomeric silsesquioxane (POSS) polyimide to improve the transmittance conservation and realize near zero mass loss against ultraviolet and atomic oxygen exposures. The POSS polyimide composite sealed triple‐junction GaAs thin‐film solar cell exhibits enhanced endurance of ...
Min Qian +3 more
wiley +1 more source
Jixie chuandong, 2012 The backlash of the filter gear using for aerospace can be influenced by the extreme environment,and the size of the backlash is one of the most important factors that influence gear transmission accuracy.Based on the thermal equilibrium and heat ...
马玲, 王家序, 陈杰, 韩念龙
doaj
Engineering ProceedingsMany actuating and electro-mechanical devices are driven by DC motors. Gear trains are used to amplify the torque in these motors. They are used in a wide variety of automotives, robotics, and automation applications. However, gears are prone to backlash
Aisha Akbar Awan, Umar S. Khan
doaj +1 more source
Advanced Science, EarlyView.Donor‐derived tdTomato+ mature hepatocytes were FACS‐isolated and transplanted into Fah−/− host mice. During regeneration, these cells convert into proliferative, unipotent Afp+ rHeps. Their plasticity is governed by a PPARγ/AFP‐dependent metabolic switch, segregating into pro‐proliferative Afplow and pro‐survival Afphigh subpopulations.
Ting Fang +12 more
wiley +1 more source
Mechanical coupling for high cyclic loading [PDF]
, 1974 One-piece cylindrical coupling with ""necked-down'' regions at each end form flexures allowing small misalignments between actuator and load. Coupling has zero backlash, low mass, close spacing between actuator and load, high stiffness in direction of ...
Dustin, M. O., Mehmed, O.
core +1 more source
Structure‐Function Integration in 2D Hybrid Perovskite for Fast Neutron and Gamma Ray Discrimination
Advanced Science, EarlyView.Using an in situ seed‐assisted cooling method, large (28 × 7 × 3 mm3) (GABA)2PbBr4 single crystals are grown, featuring hydrogen‐rich organic layers and a dense PbBr4 framework. This architecture enables efficient γ‐ray absorption, fast‐neutron sensitivity, and clear n/γ pulse‐shape discrimination (FOM up to 1.74), highlighting its potential as a ...
Yingming Wang +15 more
wiley +1 more source
Advanced Science, EarlyView.This study demonstrates that inflammatory stimuli induce the acetylation‐triggered, chaperone‐mediated autophagic degradation of ubiquitin‐specific peptidase 9 X‐linked (USP9X) in macrophages. USP9X acts as a macrophage “inflammation switch” after myocardial infarction (MI). USP9X loss destabilizes tumor necrosis factor receptor‐associated factor (TRAF)
Biqing Wang +7 more
wiley +1 more source
Magnetron tuner has locking feature [PDF]
, 1969 Magnetron tuning arrangement features a means of moving a tuning ring axially within an anode cavity by a system of reduction gears engaging a threaded tuning shaft of lead screw.
Martucci, V. J.
core +1 more source
Targeted Mitochondrial ECSIT Overexpression Attenuates MASH by Increasing OTUD3 Expression
Advanced Science, EarlyView.Mitochondrial ECSIT expression is reduced during MASH pathogenesis. Overexpression of mitochondrial ECSIT mitigates steatohepatitis and maintains hepatic metabolic homeostasis. Mechanistically, ECSIT enhances intramitochondrial OTUD3 expression to stabilize SIRT3 through deubiquitination, thus preserving mitochondrial function and impeding disease ...
Yuqing Jiang +11 more
wiley +1 more source
Jixie chuandong, 1995 By theory of active tooth transmission,the backlash adjustment moment ot insure important property of the double cycloid no backlash steel ball transmission is studied in the paper, and calculation.
安子军, 曲继方
doaj