Results 61 to 70 of about 7,881,982 (352)

Synthesis of articular cartilage-inspired branched polyelectrolyte polymer for enhanced lubrication

open access: yesBiosurface and Biotribology, 2020
The superlubrication property of articular cartilage is attributed to the hydration lubrication mechanism. This involves the complexation of biomacromolecules with phosphatidylcholine lipids to form a lubricating boundary layer on the surface.
Yixin Wang   +3 more
doaj   +1 more source

Effect of Surface Texturing on Friction and Film Thickness under Starved Lubrication Conditions [PDF]

open access: yes, 2015
Tato disertační práce se zabývá vlivem mělkých mikro-textur na tření a tloušťku filmu v mazaných nekonformních kontaktech za extrémních podmínek a za podmínek hladovění kontaktu. Měření byla realizována na tribometru v konfiguraci ball-on-disk.
Ali, Fadi
core  

A fundamental mechanism for carbon-film lubricity identified by means of ab initio molecular dynamics

open access: yes, 2016
Different hypotheses have been proposed to explain the mechanism for the extremely low friction coefficient of carbon coatings and its undesired dependence on air humidity.
Kajita, Seiji, Righi, Maria Clelia
core   +1 more source

Breakup of diminutive Rayleigh jets [PDF]

open access: yes, 2010
Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse   +7 more
core   +3 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Friction and wear of multiple steel wires in a wire rope

open access: yesFriction, 2023
The fretting wear among the steel wires aggravates the wire rope’s fatigue damage, affects the service performance of the wire ropes, and threatens mine hoisting safety. In this paper, the practical friction behavior and wear mechanism among the wires in
Yuxing Peng   +7 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Tribological behavior of sliding contact with olive oil lubrication under high temperature condition

open access: yesIndustrial Crops and Products
Olive oil is widely used for its easy availability, biodegradability, and environmental friendliness. It is a good potential candidate for green lubrication performance. However, lack of research on the tribological behavior of sliding contact under high-
Yanliang Xiao   +7 more
doaj   +1 more source

Study on Distribution of Lubricating Oil Film in Contact Micro-Zone of Full Ceramic Ball Bearings and the Influence Mechanism on Service Performance

open access: yesLubricants, 2022
Compared with metal ball bearings, full ceramic ball bearings have more outstanding service performance under extreme working conditions. In order to reveal the lubrication mechanism and improve the operation performance and service life of full ceramic ...
Jinmei Yao   +7 more
doaj   +1 more source

Lubrication model of a knee prosthesis, with non newtonian fluid and porous rough material [PDF]

open access: yes, 2009
Tibial component of knee prostheses, made of ultra high molecular weight polyethylene (UHMWPE), experiences a high degree of wear and may be expected to last twelve years on average.
Berli, Marcelo Eduardo   +3 more
core  

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