Results 101 to 110 of about 121,235 (296)
Roller sliding in engine valve train: Effect of oil film thickness considering lubricant composition
, 2020 In roller follower valve train, proper rolling of roller reduces the chances of fatigue failure and power losses. During engine operation, the roller does slip on the camshaft surface.
Muhammad Umar +10 more
core +1 more source
Advanced Functional Materials, EarlyView.Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding +14 more
wiley +1 more source
A man in a woman's world: male support networks in women's flat track roller derby [PDF]
, 2016 Is modern women’s roller derby a form of feminism, and what role do men play within it? I propose that women’s roller derby is born out of radical feminism, while male volunteers and supporters act as important nodes in broad support networks.
Fleming, Patrick Kegan +1 more
core
Advanced Functional Materials, EarlyView.This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio +7 more
wiley +1 more source
, 2010 Pair of roller boots in navy leather with yellow, red and white trim. Yellow wheels, laces and 'stoppers' to the front.. Date: 1990 (circa) - from the The Betty Smithers Design Collection at Staffordshire University.
The Betty Smithers Design Collection at Staffordshire University +1 more
core
The Motion of Rollers in the Whole Roller Beaaing
Journal of the Society of Mechanical Engineers, 1947 SASAKI, Tokio, TOKUHISA, Masatoshi
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu +14 more
wiley +1 more source
Механика машин, механизмов и материаловThe article presents an experimental study of the effect of the ultrasonic diamond smoothing mode on the surface roughness of the roller bearing roller end face in the presence of graphite nanopowder on the treated surface.
Albert V. Korolev +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei +3 more
wiley +1 more source