Results 11 to 20 of about 1,107,160 (286)

Prediction of Abrasive and Impact Wear Due to Multi-Shaped Particles in a Centrifugal Pump via CFD-DEM Coupling Method

open access: yesEnergies, 2021
Since solid particles suspended in the fluid can cause wear in centrifugal pumps, intensive attention has been focused on the numerical prediction for the wear of flow parts in centrifugal pumps.
Cheng Tang   +3 more
doaj   +1 more source

Evaluating the Influence of Sand Particle Morphology on Shear Strength: A Comparison of Experimental and Machine Learning Approaches

open access: yesApplied Sciences, 2023
Particulate materials, such as sandy soil, are everywhere in nature and form the basis for many engineering applications. The aim of this research is to investigate the particle shape, size, and gradation of sandy soil and how they relate to shear ...
Firas Daghistani, Hossam Abuel-Naga
doaj   +1 more source

Effects of Particle Geometry for PLGA-Based Nanoparticles: Preparation and In Vitro/In Vivo Evaluation

open access: yesPharmaceutics, 2023
The physicochemical properties (size, shape, zeta potential, porosity, elasticity, etc.) of nanocarriers influence their biological behavior directly, which may result in alterations of the therapeutic outcome.
Meryem Kaplan   +5 more
doaj   +1 more source

Particle Shape Modification in Comminution

open access: yesKONA Powder and Particle Journal, 2014
The evolution of particle shape during the course of comminution processes has been investigated. Shape is characterized using a variety of quantitative shape descriptors determined from particle profiles obtained by
Erol Kaya, Richard Hogg, Senthil Kumar
doaj   +1 more source

Shape matters: Competing mechanisms of particle shape segregation

open access: yesPhysical Review E, 2022
It is well-known that granular mixtures that differ in size or shape segregate when sheared. In the past, two mechanisms have been proposed to describe this effect, and it is unclear if both exist. To settle this question, we consider a bidisperse mixture of spheroids of equal volume in a rotating drum, where the two mechanisms are predicted to act in ...
D. Hernández-Delfin   +4 more
openaire   +5 more sources

The Shape of Pulverized Bituminous Vitrinite Coal Particles

open access: yesKONA Powder and Particle Journal, 2014
The shape of pulverized bituminous coal particles (vitrinites) was determined by optical and laser light scattering. Vitrain samples were collected from obvious tree remains located in the ceilings of two Appalachian
Jonathan P. Mathews   +3 more
doaj   +1 more source

Effect of particle shape and fragmentation on the response of particle dampers [PDF]

open access: yes, 2013
A particle damper (PD) is a device that can attenuate mechanical vibrations thanks to the dissipative collisions between grains contained in a cavity attached to the vibrating structure.
Carlevaro, Carlos Manuel   +2 more
core   +1 more source

Study on Particle Size of Coal Sample Measured by Dynamic Image Method

open access: yesMeikuang Anquan, 2020
Coal samples from Hexing Coal Mine in Yunnan Province were selected and 8 samples from 1 mm to 3 mm were measured by dynamic image method, each of which was 20 g.
LONG Qingming
doaj   +1 more source

The effect of alumina nanofillers size and shape on mechanical behavior of PMMA matrix composite [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
Composites with the addition of alumina nanofillers show improvement in mechanical properties. The PMMA polymer was used as a matrix and two different types of nanofillers, having extremely different shapes were added in the matrix to form the ...
Ben Hasan Somaya Ahmed   +6 more
doaj   +1 more source

Shape formation by programmable particles [PDF]

open access: yesDistributed Computing, 2019
Shape formation is a basic distributed problem for systems of computational mobile entities. Intensively studied for systems of autonomous mobile robots, it has recently been investigated in the realm of programmable matter. Namely, it has been studied in the geometric Amoebot model, where the anonymous entities, called particles, operate on a ...
Di Luna G. A.   +4 more
openaire   +5 more sources

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