Results 31 to 40 of about 2,412,195 (190)

Ionic Liquid Additives for Mixed and Elastohydrodynamic Lubrication [PDF]

open access: yesTribology Transactions, 2018
Ionic liquids (ILs), both as pure lubricants and as lubricant additives, have been demonstrated extensively to exhibit excellent tribological performance in terms of friction and wear reduction in ...
Shuyan Yang, Janet S. S. Wong, Feng Zhou
openaire   +3 more sources

Contraceptive use and sexual function: a comparison of Italian female medical students and women attending family planning services [PDF]

open access: yes, 2019
Objectives: The aims of the study were to understand how education relates to contraceptive choice and how sexual function can vary in relation to the use of a contraceptive method.
Aquino, C. I.   +7 more
core   +1 more source

A mixed lubrication analysis of a thrust bearing with fractal rough surfaces

open access: yesProceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, 2020
Fractal descriptions of rough surfaces are widely used in tribology. The fractal dimension, D, is an important parameter which has been regarded as instrument and scale independent, although recent findings bring this into question.
Xiaohan Zhang, Yang Xu, R. Jackson
semanticscholar   +1 more source

Energy-Based Modelling of Adhesive Wear in the Mixed Lubrication Regime

open access: yesLubricants, 2020
Adhesive wear in dry contacts is often described using the Archard or Fleischer model. Both provide equations for the determination of a wear volume, taking the load, the sliding path and a set of material parameters into account.
J. T. Terwey   +3 more
semanticscholar   +1 more source

Multi-scale analysis of the roughness effect on lubricated rough contact [PDF]

open access: yes, 2014
Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for both the minimization of fuel ...
DEMIRCI, Ibrahim
core   +2 more sources

Lubrication fundamentals [PDF]

open access: yes
A lubricant is any substance that is used to reduce friction and wear and to provide smooth running and a satisfactory life for machine components. Lubrication fundamentals are discussed and the various lubrication mechanisms are defined.
Hamrock, B. J.
core   +1 more source

Viscosity and tribology of copper oxide nanofluids [PDF]

open access: yes, 2008
Nanofluids, a term proposed by Choi in 1995 [1], are composites consisting of solid nanoparticles with sizes varying generally from 1 to 100 nm dispersed in a liquid.
Fernandez, J.E.   +3 more
core   +1 more source

An Assessment of Quantitative Predictions of Deterministic Mixed Lubrication Solvers

open access: yesJournal of tribology, 2020
The ability to simulate mixed lubrication problems has greatly improved, especially in concentrated lubricated contacts. A mixed lubrication simulation method was developed by utilizing the semi-system approach which has been proven to be highly useful
Yuechan Wang   +6 more
semanticscholar   +1 more source

Lubrication background [PDF]

open access: yes
Surface topography, including the various physical methods of measuring surfaces, and the various lubrication regimes (hydrodynamic, elastohydrodynamic, boundary, and mixed) are discussed.
Dowson, D., Hamrock, B. J.
core   +1 more source

Hydrodynamic modelling of hydrostatic magnesium extrusion [PDF]

open access: yes, 2006
Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet\ud to work zone of the process is not considered sharp as in the model of Wilson but as a rounded edge,
Moodij, E.   +2 more
core   +2 more sources

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