Results 21 to 30 of about 71,674 (211)

Arabica coffee flow properties assessed using different roasts and particle sizes during storage

open access: yesBrazilian Journal of Food Technology, 2022
Flowability of agricultural products is an important factor to be considered at post-harvest, thus impacting directly on number of operations and the design of machinery. This study aimed to evaluate and determine the K coefficient and flow properties as
Gabriel Henrique Horta de Oliveira   +4 more
doaj   +1 more source

The effect of groove texture patterns on piston-ring pack friction [PDF]

open access: yes, 2012
A cylinder liner possesses fairly intricate surface requirements due to its complicated functions. It needs to provide adequate surface roughness to resist wear as well as to store and retain lubricants during high temperatures. The liner surface texture
EL MANSORI, Mohamed   +7 more
core   +1 more source

Friction and wear performance evaluation of bio-lubricants and DLC coatings on cam/tappet interface of internal combustion engines [PDF]

open access: yes, 2021
The environmental concerns associated with artificially formulated engine oils have forced a shift towards bio-based lubricants. The deposition of hard coatings on engine components and migrating to environmentally friendly green lubricants can help in ...
Haji Hassan Masjuki   +9 more
core   +1 more source

Reflections on Friction in Quantum Mechanics

open access: yesEntropy, 2010
Distinctly quantum friction effects of three types are surveyed: internalfriction, measurement-induced friction, and quantum-fluctuation-induced friction.
Yair Rezek
doaj   +1 more source

Theoretical and computational validation of the Kuhn barrier friction mechanism in unfolded proteins

open access: yesScientific Reports, 2017
A long time ago, Kuhn predicted that long polymers should approach a limit where their global motion is controlled by solvent friction alone, with ruggedness of their energy landscapes having no consequences for their dynamics.
Stanislav M. Avdoshenko   +4 more
doaj   +1 more source

Modeling and estimation of internal friction in cloth [PDF]

open access: yesACM Transactions on Graphics, 2013
Force-deformation measurements of cloth exhibit significant hysteresis, and many researchers have identified internal friction as the source of this effect. However, it has not been incorporated into computer animation models of cloth. In this paper, we propose a model of internal friction based on an augmented reparameterization of Dahl's model, and ...
Eder Miguel   +8 more
openaire   +3 more sources

Research on the carbon emission reduction of internal combustion engines by reducing friction work [PDF]

open access: yesE3S Web of Conferences
The increase in carbon dioxide emissions is a key factor leading to the warming of the Earth’s climate system and the intensification of the greenhouse effect. Internal combustion engines have a significant impact on carbon emissions.
Du Fengming   +6 more
doaj   +1 more source

Internal Friction Angle of Metal Powders

open access: yesMetals, 2018
Metal powders are components with multidisciplinary usage as their application is very broad. Their consistent characterization across all disciplines is important for ensuring repeatable and trouble-free processes.
Jiri Zegzulka   +5 more
doaj   +1 more source

Mechanical Spectroscopy of Ti-15Zr-based Alloys with Mo Addition [PDF]

open access: yesMaterials Research, 2017
In this paper, the effect of substitutional Mo amounts in internal friction and interstitial diffusion mechanisms was analyzed in Ti-15Zr-based alloys. Mechanical spectroscopy was obtained from room temperature up to 730 K with frequencies between 1 Hz ...
Diego Rafael Nespeque Correa   +2 more
doaj   +1 more source

Strengthening of damping properties after initial plastic deformation: static and dynamic tests

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
The effect of the initial plastic deformation on the damping properties of low-carbon steel is experimentally studied, which corresponds to a change in the deformation diagram. The deformation diagram also refers to hysteresis loops that expand after the
Vladimir B. Zylev, Pavel O. Platnov
doaj   +1 more source

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