Fabrication of fine grain structures in Al alloys at elevated temperature is of great difficulty, owing to the dramatic recrystallization and grain growth. In this study, particles with both (sub)micron and nano-scaled sizes are introduced in Al matrices (composites) to deeply refine and stabilize the grain structures at high temperature. Microstru...
Imaging techniques that use atmospheric muons, collectively named under the neologism "muography", have seen a tremendous growth in recent times, mainly due to their diverse range of applications. The most well-known ones include but are not limited to: volcanology, archaeology, civil engineering, nuclear reactor monitoring, nuclear waste character...
Published in Journal of colloid and interface science
Micron and nano-scale particles are increasingly used to stabilize water-in-oil (W/O) emulsions. Though remarkably stable, the resulting emulsions can be broken by adding low molecular weight surfactants that modify the wettability of the interfacially-adsorbed particles. W/O emulsions were prepared using lipophilic crystals of the monoglyceride gl...
Highly resolved numerical simulations by the immersed boundary method are used to study neutrally buoyant spherical particle motion when carried by fluid approaching a wall. The carrying flow studied is the Hiemenz-Homann (HH) axisymmetric straining flow into a stagnation point at a flat rigid wall, with a boundary layer of thickness 3δ = 3√ν/B, with B...
Highly resolved numerical simulations by the immersed boundary method are used to study neutrally buoyant spherical particle motion when carried by fluid approaching a wall. The carrying flow studied is the Hiemenz-Homann (HH) axisymmetric straining flow into a stagnation point at a flat rigid wall, with a boundary layer of thickness 3δ = 3√ν/B, with B...
Clusters of inertial particles in turbulence are usually identified from the spatial coherence of the particle concentration field, neglecting their temporal persistence. The latter is in fact essential to the ability of the particles to interact with each other and to modify the flow. Here, we leverage simulations of homogeneous isotropic turbulen...
Based on current knowledge, the SARS-CoV-2 is transmitted via droplet, aerosols and smear infection. Due to a confirmed high virus load in the upper respiratory tract of COVID-19 patients, there is a potential risk of infection for health care professionals when performing surgical procedures in this area. The aim of this study was the semi-quantit...
Published in Bioactive Materials
• We proposed novel adhesive porous particles with MSCs encapsulation. • MSCs could turn activated inflammatory macrophages into an anti-inflammatory profile. • The porous microparticles could adhere to bowel surfaces tightly through electrostatic adsorption and covalent bonding. • MSCs-encapsulated porous adhesive microparticles could significantl...
Karst systems, as well as springs, are vulnerable to water perturbation brought by infiltration. In this research, sources of water perturbations were examined. The first objective is to provide a method that can determine the origin of the water flowing in the karst outlet. The second objective is to identify the associated water quality hazards c...
New formulas are given for the grand partition function of paraboson systems of order p with n orbitals and parafermion systems of order p with m orbitals. These formulas allow the computation of statistical and thermodynamic functions for such systems. We analyze and discuss the average number of particles on an orbital, and the average number of ...
