Results 41 to 50 of about 158,333 (341)

High-Rate Laser Surface Texturing for Advanced Tribological Functionality

open access: yesLubricants, 2020
This article features with the enhancement of the static coefficient of friction by laser texturing the contact surfaces of tribological systems tested under dry friction conditions.
Jörg Schille   +8 more
doaj   +1 more source

Material and interaction properties of selected grains and oilseeds for modeling discrete particles [PDF]

open access: yes, 2010
Experimental investigations of grain flow can be expensive and time consuming, but computer simulations can reduce the large effort required to evaluate the flow of grain in handling operations.
Boac, Josephine M.   +3 more
core   +1 more source

Simulation Parameter Calibration and Test of Typical Pear Varieties Based on Discrete Element Method

open access: yesAgronomy, 2022
To improve the accuracy of discrete element simulation parameters for the mechanized picking and collection of pears, the study calibrated the simulation parameters of pears by the method of combining a physical experiment and simulation.
Guiju Fan   +4 more
doaj   +1 more source

Static and sliding contact of rough surfaces: effect of asperity-scale properties and long-range elastic interactions [PDF]

open access: yes, 2018
Friction in static and sliding contact of rough surfaces is important in numerous physical phenomena. We seek to understand macroscopically observed static and sliding contact behavior as the collective response of a large number of microscopic ...
Bhattacharya, Kaushik   +2 more
core   +2 more sources

Nonlinear shear wave interaction at a frictional interface: Energy dissipation and generation of harmonics

open access: yes, 2011
Analytical and numerical modelling of the nonlinear interaction of shear wave with a frictional interface is presented. The system studied is composed of two homogeneous and isotropic elastic solids, brought into frictional contact by remote normal ...
Meziane, A.   +2 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Non-monotonic dependence of the friction coefficient on heterogeneous stiffness

open access: yes, 2014
The complexity of the frictional dynamics at the microscopic scale makes difficult to identify all of its controlling parameters. Indeed, experiments on sheared elastic bodies have shown that the static friction coefficient depends on loading conditions,
Ciamarra, Massimo Pica   +4 more
core   +2 more sources

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky   +5 more
wiley   +1 more source

The Impact of One Heat Treated Contact Element on the Coefficient of Static Friction [PDF]

open access: yes, 2013
The subject of the paper includes theoretical considerations, the conducting of experimental tests, and the analysis of exposed test results related to determination of the coefficient of static friction of previously heat-treated contact pairs.
A. Marković   +6 more
core  

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

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