Results 91 to 100 of about 180,387 (302)
ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen +2 more
wiley +1 more source
The effects of shear degradation on the microstructures and properties of grease were investigated using a planetary ball mill to simulate a bearing shear zone on grease.
Jia Ren +4 more
doaj +1 more source
Effect of Base Oil Type in Grease Composition on the Lubricating Film Formation in EHD Contacts
The service life of rolling bearings is significantly affected by the film formation in elastohydrodynamic (EHD) contacts, which depends on the operating conditions, like rotational speed or temperature.
Dennis Fischer +3 more
doaj +1 more source
Perovskite oxide catalysts with reduced Co content, substituted by Fe and Ni, are synthesized and studied for their activity in the oxygen evolution reaction in alkaline media. An increase in the intrinsic catalytic activity (obtained by the (RctCdl)−1 product) of the base material (Ba0.5Gd0.8La0.7Co2O6‐δ) is seen for an as high as 70 % substitution of
Henrik Petlund +6 more
wiley +1 more source
Production of high temperature grease from waste lubricant sludge and silicone oil [PDF]
This research was carried out to study the production of high temperature grease from waste lubricant sludge and silicone oil. The effects of different ratios of waste lubricant sludge to fumed silica and mixing time on grease characteristics were ...
Yeung, Cheryl Suet Ling
core
Embryonic development of the Mediterranean starfish Hacelia attenuata
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo +3 more
wiley +1 more source
Using a controlled atmosphere cutting apparatus equipped with a mass spectrometer, this study investigated the influence of several additive compounds on grease decomposition and hydrogen generation caused by a nascent clean steel surface.
Toshiaki Wakabayashi +3 more
doaj +1 more source
Contaminant particle motion in lubricating grease flow: a computational fluid dynamics approach [PDF]
In this paper, numerical simulations of particle migration in lubricating grease flow are presented. The rheology of three lithium greases with NLGI (National Lubricating Grease Institute) grades 00, 1 and 2 respectively are considered.
Casals Terré, Jasmina +3 more
core +3 more sources
Gold(I) Phosphine/Phosphido‐Borohydride Complexes
Synthesis, structure, and electrochemical characteristics of a homologous series of gold(I) complexes featuring phosphine and phosphido–borohydride ligands. A homologous series of linear, mononuclear gold(I) phosphine/phosphido‐borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared ...
Matthew J. G. Sinclair +3 more
wiley +1 more source
Comparative study between prepared electrical grease and the imported one
Grease lubrication is a complex mixture of science and engineering, requiring an interdisciplinary approach, and is applied to the majority of bearings worldwide.
Refaat A. El-Adly, Gamal M. Turky
doaj +1 more source

