We report on a series of experiments in which a grain-sized intruder is pushed by a spring through a two-dimensional granular material composed of photoelastic disks in a Couette geometry. We study the intruder dynamics as a function of packing …
The bone quality is associated with changes in its dielectric properties (permittivity and conductivity). The feasibility of detecting changes in these properties was evaluated by using a tomographic array of 16 monopole antennas with z-polarized …
A robust, simple and fast procedure for the calculation of uncertainties in static relative permittivity (εs) computed via molecular dynamics (MD) is proposed. It arises as a direct application of well founded statistical methods for auto-correlated …
An inverse method for parameters estimation of dielectric cylinders (dielectric properties, location, and radius) from amplitude-only microwave information is presented. To this end two different Artificial Neural Networks (ANN) topologies were …
We present numerical simulations, based on a CFD–DEM approach, of the transport and settlement of proppant in a planar vertical cell that mimics a hydraulic fracture. These simulations, with resolution at the particle level, allow for a clean …
We study the discharge of a two-dimensional silo through small openings via discrete element simulations. We consider the effect of the shape of the grains on the clogging of the flow, focusing on regular polygons and disks. We show that the clogging …
In this article, dedicated to the memory of Lesser Blum, we develop a theory for the physical clusters which were introduced some time ago in our group (J. Chem Phys. 116, 1097–1108, 2002). The physical cluster definition establishes that a system …
The objective of this work is to quantify the relation between the value of the effective thermal conductivity of trabecular bone and its microstructure and marrow content. The thermal conductivity of twenty bovine trabecular bone samples was …
The biological variability and quality of trabecular bone yield variability of its dielectric properties (permittivity and conductivity). The feasibility of detecting such differences was studied in a tomographic array of …