Related Experiment Video
Updated: Sep 28, 2025

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging
Published on: September 2, 2016
Numerical study of the transverse diffusion coefficient for a one component model of plasma
Lorenzo Valvo1, Andrea Carati1
1Department of Mathematics, Università degli Studi di Milano, Via Saldini 50, 20133 Milano, Italy.
Abstract:
In this paper, we discuss the results of some molecular dynamics simulations of a magnetized one component plasma, targeted to estimate the diffusion coefficient D⊥ in the plane orthogonal to the magnetic field lines. We find that there exists a threshold with respect to the magnetic field strength |B→|: for weak magnetic field, the diffusion coefficients scale as 1/|B→|2, while a slower decay appears at high field strength. The relation of this transition with the different mixing properties of the microscopic dynamics is investigated by looking at the behavior of the velocity autocorrelation.
Related Concept Videos
Diffusion on Chromatography Columns
Longitudinal diffusion occurs when the solute molecules in the mobile phase diffuse from the more concentrated center of the chromatographic band to the more dilute regions on either side, both towards and against the flow direction. This...
Transmission-Line Differential Equations
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured...
Carrier Transport
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models
Two-Compartment Open Model: Extravascular Administration
The absorption exponent (ka) indicates the speed at which the drug...
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an...

