Results 91 to 100 of about 180,387 (302)

Expression, Purification, and Microscopy‐Based Assays for Engineered Recombinant Tyrosinated, Detyrosinated, and Δ2 Human Tubulin

open access: yesCytoskeleton, EarlyView.
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

Study of the changes in the microstructures and properties of grease using ball milling to simulate a bearing shear zone on grease

open access: yesScientific Reports
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

open access: yesLubricants, 2018
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

Iron and Nickel Substituted Perovskite Cobaltites for Sustainable Oxygen Evolving Anodes in Alkaline Environment

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
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]

open access: yes, 2010
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

open access: yesDevelopmental Dynamics, EarlyView.
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

Influence of Additives on Grease Decomposition and Hydrogen Generation Caused by Nascent Clean Steel Surface

open access: yesTribology Online
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]

open access: yes, 2018
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

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
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

open access: yesEgyptian Journal of Petroleum, 2018
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

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