Results 71 to 80 of about 2,250,140 (346)

Study on Atomization Mechanism of Oil Injection Lubrication for Rolling Bearing Based on Stratified Method

Lubricants
The atomization mechanism of lubrication fluid in rolling bearings under high-speed airflow between the rings was investigated. A simulation model of gas–liquid two-phase flow in angular contact ball bearings was developed, and the jet lubrication ...
Feng Wei, Hongbin Liu, Yongyan Liu
doaj   +1 more source

Influence of asperities on fluid and thermal flow in a fracture: a coupled Lattice Boltzmann study

, 2013
The characteristics of the hydro-thermal flow which occurs when a cold fluid is injected into a hot fractured bedrock depend on the morphology of the fracture.
Flekkøy, Eirik Grude, Neuville, Amélie, Toussaint, Renaud   +2 more
core   +3 more sources

Identification of Local Lubrication Regimes on Textured Surfaces by 3D Roughness Curvature Radius [PDF]

, 2014
This paper proposes a new method of 3D roughness peaks curvature radius calculation and its application to tribological contact analysis as a characteristic signature of tribological contact.
Bigerelle, Maxence, Dubar, Laurent, Hubert, Cedric, Kubiak, Krzysztof   +3 more
core   +2 more sources

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Experimental and Theoretical Investigation for Shaft Journal Bearing Lubrication Performance [PDF]

Port Said Engineering Research Journal
Hydrodynamic lubrication is definitely one of the foremost factors upon which the load carrying capacity within journal bearing mainly rely. Therefore, maintaining journal bearing lubrication away from boundary and transient lubrication regions is so ...
Nader Abdul Rahman, Ahmed Taha, Amman Ali, Nour Marey   +3 more
doaj   +1 more source

The non-Newtonian rheology of dilute colloidal suspensions [PDF]

, 2002
The non-Newtonian rheology is calculated numerically to second order in the volume fraction in steady simple shear flows for Brownian hard spheres in the presence of hydrodynamic and excluded volume interactions. Previous analytical and numerical results
Bergenholtz, J., Brady, J. F., Vicic, M.
core   +1 more source

Effects of Hyaluronan Molecular Weight on the Lubrication of Cartilage-Emulating Boundary Layers

Biomacromolecules, 2020
Osteoarthritic joints contain lower-molecular-weight (MW) hyaluronan (hyaluronic acid, HA) than healthy joints. To understand the relevance of this HA size effect for joint lubrication, the friction and surface structure of cartilage-emulating surfaces ...
Zhang Liu, Weifeng Lin, Yaxun Fan, N. Kampf, Yilin Wang, J. Klein   +5 more
semanticscholar   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Diffusion in pores and its dependence on boundary conditions [PDF]

, 2005
We study the influence of the boundary conditions at the solid liquid interface on diffusion in a confined fluid. Using an hydrodynamic approach, we compute numerical estimates for the diffusion of a particle confined between two planes.
A Saugey, Abramowitz M, Alméras Y, Batchelor G K, C Ybert, Cottin-Bizonne C, Einstein A, Faxen H, Happel J, J L Barrat, Joly L Ybert C Bocquet L, L Bocquet, L Joly, Lauga E, Lauga E Squires T M, Morse P, Richardson S   +16 more
core   +2 more sources

Boundary lubrication and maxillofacial prosthetic polydimethylsiloxanes

Biomaterials, 1991
Polydimethylsiloxanes exhibit hydrophobic behaviour and poor wettability. These features impose some problems with the clinical performance of the material when used for the construction of intraoral and extraoral facial prostheses. Surface active agents were added to modify the surface energy of the polydimethylsiloxane and contact angle measurements ...
POLYZOIS, GL, WINTER, RW, STAFFORD, GD
openaire   +3 more sources