Poisson–Nernst–Planck (PNP) models constitute a cornerstone in the mathematical description of ionic transport and electrostatic interactions in diverse physical and biological systems. These models ...
Boundary value problems of a one-dimensional steady-state Poisson-Nernst-Planck (PNP) system for ion flow through a narrow membrane channel are studied. By assuming the ratio of the Debye length to a ...
This paper represents a first step toward a moment method for dose calculations in radiotherapy. Starting from a deterministic transport model for electron radiation and its Fokker-Planck ...