Zobrazeno 1 - 10
of 425
pro vyhledávání: '"Azema, P."'
The bulk behaviour of granular materials is tied to its mesoscale and particle-scale features: strength properties arise from the buildup of various anisotropic structures at the particle-scale induced by grain connectivity (fabric), force transmissi
Externí odkaz:
http://arxiv.org/abs/2409.08140
We present a series of experiments investigating the flow regimes and repose angles of highly concave particle packings in a rotating drum. By varying grain geometry from spherical to highly non-convex shapes, adjusting frictional properties and the
Externí odkaz:
http://arxiv.org/abs/2407.21464
In this study, we investigate the stability and solid fraction of columns comprised of highly non-convex particles. These particles are constructed by extruding arms onto the faces of Platonic solids, a configuration we term \emph{Platonic polypods}.
Externí odkaz:
http://arxiv.org/abs/2407.01814
The bulk dynamics of dense granular materials arise through a combination of particle-scale and mesoscale effects. Theoretical and numerical studies have shown that collective effects are created by particle-scale anisotropic structures such as grain
Externí odkaz:
http://arxiv.org/abs/2405.00653
The flow behavior of granular matter is significantly influenced by the shape of constituent particles. This effect is particularly pronounced for very concave particles, which exhibit unique flow characteristics such as higher porosity and sharper p
Externí odkaz:
http://arxiv.org/abs/2403.07555
Autor:
Marco Polo Peralta-Álvarez, Keya Downward, Andrew White, Hugo Redondo Azema, Laura Sibley, Charlotte Sarfas, Alexandra Morrison, Mike Dennis, Delia Diaz-Santana, Stephanie A. Harris, Shuailin Li, Eugenia Puentes, Nacho Aguilo, Carlos Martin, Sally Sharpe, Helen McShane, Rachel Tanner
Publikováno v:
npj Vaccines, Vol 9, Iss 1, Pp 1-10 (2024)
Abstract The only currently licensed vaccine against tuberculosis (TB), Bacille Calmette Guérin (BCG), is insufficient to control the epidemic. MTBVAC is a live attenuated strain of Mycobacterium tuberculosis (M.tb) and is one the most advanced TB v
Externí odkaz:
https://doaj.org/article/2d65dc12fc6546f0b6600b34a9dd124b
Autor:
Barés, Jonathan, Cárdenas-Barrantes, Manuel, Pinzón, Gustavo, andó, Edward, Renouf, Mathieu, Viggiani, Gioacchino, Azéma, Emilien
Very soft grain assemblies have unique shape-changing capabilities that allow them to be compressed far beyond the rigid jammed state by filling void spaces more effectively. However, accurately following the formation of these systems by monitoring
Externí odkaz:
http://arxiv.org/abs/2305.19712
Publikováno v:
Polysaccharides, Vol 5, Iss 2, Pp 67-84 (2024)
In this study, chitosan-based surfactants were synthesized by epoxy–amine chemistry to stabilize concentrated O/W emulsions at pH7. Chitosan was first depolymerized by nitrous deamination to obtain chitooligosaccharides (COS) with degrees of polyme
Externí odkaz:
https://doaj.org/article/db1b011da7004683be22051296152da9
Softer than soft, squishy granular matter is composed of grains capable of significantly changing their shape (typically larger than 10% of deformation) without tearing or breaking. Because of the difficulty to test these materials experimentally and
Externí odkaz:
http://arxiv.org/abs/2204.10701
In this letter, we report on an experimental study which analyzes the compressive behavior of 2D bidisperse granular assemblies made of soft (hyperelastic) and hard grains in varying proportions ($\kappa$). By means of a recently developed uniaxial c
Externí odkaz:
http://arxiv.org/abs/2111.01568