Results 21 to 30 of about 3,377,986 (297)

Friction dynamics of trocars

open access: yesSurgical Endoscopy, 2006
In minimally invasive surgery, force feedback information on tissue manipulation is altered by friction between the instrument and the sealing mechanism of the trocar. It is unknown how the different sealing mechanisms of currently available trocars influence the friction forces.
Van Den Dobbelsteen, J.J. (author)   +2 more
openaire   +4 more sources

Quantum Dynamics with Electronic Friction

open access: yesPhysical Review Letters, 2022
20 pages (with Supplemental Material)
Rocco Martinazzo, Irene Burghardt
openaire   +3 more sources

Experimental Study on the Transition between Static and Kinetic Frictions of Steel/Shale Pairs

open access: yesShock and Vibration, 2021
The transition between static and kinetic frictions of steel/shale pairs has been studied. It was found that the coefficient of friction decreased exponentially from static to dynamic friction coefficient with increasing sliding displacement.
Qin Lian, Chunxu Yang, Jifei Cao
doaj   +1 more source

Motion analysis of passive dynamic walking with a rigorously constraint model: A necessary condition for maintaining period-1 gait

open access: yesBiomimetic Intelligence and Robotics, 2022
The friction force is an important environmental factor that influences dynamic walking. While most of the related works simply assume static friction or Coulomb friction, we use the LuGre friction, which accounts for both static and dynamic effects, to ...
Yanqiu Zheng   +5 more
doaj   +1 more source

Wear and friction of composites of an epoxy with boron containing wastes

open access: yesPolímeros, 2015
Polymer surface coatings provide superior adhesion to substrates, some flexibility and corrosion resistance. On the other hand, 400,000 ton of boron wastes are generated each year.
Tayfun Uygunoğlu   +2 more
doaj   +1 more source

Modeling the Friction Boundary Layer of an Entire Brake Pad with an Abstract Cellular Automaton

open access: yesLubricants, 2018
The principle energy exchange of a brake system occurs in the tribological boundary layer between the pad and the disc. The associated phenomena are primarily responsible for the dynamics of brake systems.
Georg-Peter Ostermeyer   +1 more
doaj   +1 more source

High friction coefficient of vertically aligned carbon-nanotubes: A molecular dynamics simulation

open access: yesCarbon Trends, 2021
In this study, we perform non-equilibrium molecular dynamics simulations to study the friction coefficient between two carbon nanotubes grown vertically on two separate graphene layers, which are placed parallel to each other with one set in motion ...
O. Farzadian   +3 more
doaj   +1 more source

Dynamic portfolio choice with frictions

open access: yesJournal of Economic Theory, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicolae Gârleanu, Lasse Heje Pedersen
openaire   +5 more sources

Characterization of Dynamic Friction Factor for FEM Modeling of High Speed Process

open access: yesEngineering Transactions, 2014
The present study aims to establish through a series of friction tests the trends of the dynamic factor according to sliding speed. A ballistic set-up using an air gun launch is used to measure the friction coefficient for the steel/carbide contact ...
Jean-Jacques ARNOUX   +2 more
doaj   +1 more source

Effect of collagen-induced residual stress on the frictional property of articular cartilage

open access: yesBiosurface and Biotribology, 2018
Previous findings, such as split-line of the articular cartilage surface and curving of sliced cartilage specimen, would suggest that residual stress is contained in articular cartilage.
Hiromichi Fujie   +2 more
doaj   +1 more source

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