Results 31 to 40 of about 407,486 (302)

Energy flows in vibrated granular media

open access: yes, 1998
We study vibrated granular media, investigating each of the three components of the energy flow: particle-particle dissipation, energy input at the vibrating wall, and particle-wall dissipation.
A. D. Rosato   +23 more
core   +1 more source

Rheology of Granular Materials: Dynamics in a Stress Landscape [PDF]

open access: yes, 2009
We present a framework for analyzing the rheology of dense driven granular materials, based on a recent proposal of a stress-based ensemble. In this ensemble fluctuations in a granular system near jamming are controlled by a temperature-like parameter ...
Bouchaud J.-P.   +3 more
core   +1 more source

Compaction of granular material inside confined geometries

open access: yesFrontiers in Physics, 2015
In both nature and the laboratory, loosely packed granular materials are often compacted inside confined geometries. Here, we explore such behaviour in a quasi-two dimensional geometry, where parallel rigid walls provide the confinement.
Benjy eMarks   +6 more
doaj   +1 more source

Time-resolved dynamics of granular matter by random laser emission [PDF]

open access: yes, 2013
Because of the huge commercial importance of granular systems, the second-most used material in industry after water, intersecting the industry in multiple trades, like pharmacy and agriculture, fundamental research on grain-like materials has received ...
Conti, Claudio   +4 more
core   +2 more sources

Effect of moisture on mechanical behavior of granular material in initial laboratory and mechanical tests [PDF]

open access: yes, 2018
In this article authors present results of initial laboratory tests and further numerical analyses using finite element method (FEM) and back - calculation method.
Grygierek, Marcin   +1 more
core   +1 more source

On the Thermodynamics of Granular Media

open access: yes, 1992
A thermodynamic formulation for moving granular material is proposed. The fluctuations due to the constant flux and dissipation of energy are controlled in a `granular' ensemble by a pressure $\wp$ (`compression') which is conjugate to a contact volume (`
Herrmann, H. J.
core   +4 more sources

Comparison of different capillary bridge models for application in the discrete element method [PDF]

open access: yes, 2014
Weakly wetted granular material is the subject of many studies. Several formulations were proposed to calculate the capillary forces between wet particles. In this paper some of such models have been implemented in a DEM-framework, and simulation results
Gladkyy, Anton, Schwarze, Ruediger
core   +1 more source

Dynamic compaction of granular materials [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
An Eulerian hyperbolic multiphase flow model for dynamic and irreversible compaction of granular materials is constructed. The reversible model is first constructed on the basis of the classical Hertz theory. The irreversible model is then derived in accordance with the following two basic principles.
Favrie, N., Gavrilyuk, S.
openaire   +3 more sources

The Effect of Granular Trench’s Depth on Bearing Capacity of Shallow Foundations on the Soft Ground [PDF]

open access: yesرویکردهای نوین در مهندسی عمران, 2018
The rapid growth of construction in urban areas has resulted in building structures on soft and weak soils. These soils possess the low bearing capacity and high settlements.
Aysan Ranjbar, Ali Akbar Golshani
doaj   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

open access: yesMolecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski   +9 more
wiley   +1 more source

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