Results 51 to 60 of about 113,834 (330)

A coupled finite-volume CFD solver for two-dimensional elasto-hydrodynamic lubrication problems with particular application to rolling element bearings [PDF]

, 2016
This paper describes a new computational fluid dynamics methodology for modelling elastohydrodynamic contacts. A finite-volume technique is implemented in the ‘OpenFOAM’ package to solve the Navier-Stokes equations and resolve all gradients in a ...
Dini, D, Hajishafiee, A, Ioannides, E, Kadiric, A   +3 more
core   +1 more source

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

Advanced 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, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Roll waves in mud [PDF]

, 2004
The stability of a viscoplastic fluid film falling down an inclined plane is explored, with the aim of determining the critical Reynolds number for the onset of roll waves.
Balmforth, N. J., Liu, J. J.
core   +1 more source

Lubrication of Attitude Control Systems

, 2011
The spacecraft attitude control system contains attitude error sensors such as gyroscopes and actuators such as momentum wheels and reaction wheels. The control moment gyros (CMG), in which the momentum wheels are mounted in gimbals, are also used in attitude control of spacecrafts. All these systems are designed to operate continuously till the end of
Krishnan, Sathyan, Lee, Sang-Heon, Hsu, Hung-Yao, Konchady, Gopinath   +3 more
openaire   +4 more sources

A Universal Way to Manipulate Droplet via Light‐Fueled Thermocapillary Convection

Advanced Functional Materials, EarlyView.
A non‐contact light‐induced droplet manipulation strategy fueled by mid‐infrared (MIR) light irradiation is introduced. No additional additives and/or complex substrate are required. Here, thermocapillary convection, directly generated by temperature gradient at outer surface of droplet via localized surface heating, plays a key role to propel the ...
Hyesun Hwang, Yinggang Zhao, Kun Li, Jaeseung Lee, Cunjing Lv, Sanghyuk Wooh   +5 more
wiley   +1 more source

Selective Laser Sintering 3D Printing of Drug‐Loaded Intravitreal Implants

Advanced Functional Materials, EarlyView.
Selective laser sintering enables the fabrication of biodegradable and biocompatible intravitreal implants with tunable microstructures for sustained drug delivery. By modulating laser scanning speed, the polymer matrix architecture is engineered to control the release kinetics of dexamethasone and riboflavin over several months. This approach offers a
Iria Seoane‐Viaño, Carlos Bendicho‐Lavilla, Haya Alfassam, Bárbara Blanco‐Fernández, Abdul W. Basit, Francisco J. Otero‐Espinar   +5 more
wiley   +1 more source

Lubricant-free deep drawing using CO2 and N2 as volatile media injected through laser-drilled microholes

Manufacturing Review, 2019
Most metal forming processes use lubricants based on mineral oils as an intermediate medium to reduce friction and wear. To avoid the well-known drawbacks of oil lubrication, a novel and environment friendly lubrication system for deep-drawing processes ...
Zahedi Ehsan, Woerz Christoph, Reichardt Gerd, Umlauf Georg, Liewald Mathias, Barz Jakob, Weber Rudolf, Foerster Daniel J., Graf Thomas   +8 more
doaj   +1 more source

Active elastohydrodynamics of vesicles in narrow, blind constrictions [PDF]

, 2017
Fluid-resistance limited transport of vesicles through narrow constrictions is a recurring theme in many biological and engineering applications. Inspired by the motor-driven movement of soft membrane-bound vesicles into closed neuronal dendritic spines,
Fai, Thomas G., Harting, Jens, Kusters, Remy, Mahadevan, L., Rycroft, Chris H.   +4 more
core   +4 more sources

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

Advanced 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, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Research of Intelligent Centralized Lubrication System and Its Development

Gong-kuang zidonghua, 2010
In view of the problems that lubricating failure frequently took place in traditional single-strand and double-strand lubrication system because of their unreasonable design,a design scheme of intelligent centralized lubrication system was put forward ...
WANG Li, SU Bo
doaj