Results 41 to 50 of about 365,176 (302)

Effects of Moving Side Walls on Confined Granular Packings [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2011
Granular materials have numerous industrial and geophysical applications. However, many phenomenon exhibited by granular media are not yet fully explained.
Ram Chand   +2 more
doaj  

Rheology of a confined granular material [PDF]

open access: yesPhysical Review E, 2001
9 pages, 3 .eps figures, submitted to ...
Ovarlez, Guillaume   +2 more
openaire   +4 more sources

Microstructural anisotropy as the origin of dilatancy [PDF]

open access: yesEPJ Web of Conferences
Dilation in sheared granular materials has been widely observed, yet its micromechanical origins remain debated. Using discrete element method (DEM) simulations of slow granular flows, we find that grain rearrangements occur intermittently, alternating ...
Gautam Ravi, Nott Prabhu R.
doaj   +1 more source

Remarks on Constitutive Modeling of Granular Materials

open access: yesEng, 2023
In this paper, we provide a brief overview of certain fundamental concepts which can be used to derive constitutive relations for the stress tensor of granular materials. These include concepts such as dilatancy, cohesion, yield criterion, shear banding,
Mehrdad Massoudi
doaj   +1 more source

Accretion Dynamics on Wet Granular Materials [PDF]

open access: yes, 2017
Wet granular aggregates are common precursors of construction materials, food, and health care products. The physical mechanisms involved in the mixing of dry grains with a wet substrate are not well understood and difficult to control.
Jop, Pierre   +2 more
core   +4 more sources

Coupling between rotational and translational motions of a vibrated polygonal disk

open access: yesNew Journal of Physics, 2020
We investigate experimentally the dynamics of a single polygonal disk (regular n -gon with 3 ⩽ n ⩽ 8) confined in a closed container under vertical vibrations against gravity.
Simeon Völkel, Kai Huang
doaj   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

open access: yesFEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner   +7 more
wiley   +1 more source

Remote Monitoring in Myasthenia Gravis: Exploring Symptom Variability

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare, autoimmune disorder characterized by fluctuating muscle weakness and potential life‐threatening crises. While continuous specialized care is essential, access barriers often delay timely interventions. To address this, we developed MyaLink, a telemedical platform for MG patients.
Maike Stein   +13 more
wiley   +1 more source

Multiple shear bands in granular materials

open access: yesEPJ Web of Conferences, 2017
The transition regime from quasi-static to dynamic shear regime is studied by discrete element method (DEM) and by means of a mesoscopic model. We show that at moderate shear rate multiple shear bands appear which eventually appear as a continuous shear ...
Lévay Sára, Török János
doaj   +1 more source

The Experimental Stress – Strain Rate Relationship of Granular Materials [Translated]†

open access: yesKONA Powder and Particle Journal, 2014
The flow of granular materials is important in the field of material handling. However, there are many unknown factors associated with the analysis of these flows.
Shinichi Yuu, Shigenori Kamimura
doaj   +1 more source

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