transport approximation
1TRANSPORT (COEFFICIENTS DE) — TRANSPORT COEFFICIENTS DE Coefficients Lik des relations linéaires (équations de transport) qui existent, en première approximation, entre les courants 淋 size=1晴 («flux») des grandeurs extensives transportées Gi et les agents Xi («forces… …
2Radiative transfer equation and diffusion theory for photon transport in biological tissue — Photon transport in biological tissue can be equivalently modeled numerically with Monte Carlo simulations or analytically by the radiative transfer equation (RTE). However, the RTE is difficult to solve without introducing approximations. A… …
3Monte Carlo methods for electron transport — The Monte Carlo method for electron transport is a semiclassical Monte Carlo(MC) approach of modeling semiconductor transport. Assuming the carrier motion consists of free flights interrupted by scattering mechanisms, a computer is utilized to… …
4Rail transport modelling — Rail transport Operations Track Maintenance High speed Gauge Stations …
5Boussinesq approximation (water waves) — In fluid dynamics, the Boussinesq approximation for water waves is an approximation valid for weakly non linear and fairly long waves. The approximation is named after Joseph Boussinesq, who first derived them in response to the observation by… …
6WKB approximation — In physics, the WKB (Wentzel–Kramers–Brillouin) approximation, also known as WKBJ (Wentzel–Kramers–Brillouin–Jeffreys) approximation, is the most familiar example of a semiclassical calculation in quantum mechanics in which the wavefunction is… …
7Neutron transport — is the study of the motions and interactions of neutrons with materials. Nuclear scientists and engineers often need to know where neutrons are in an apparatus, what direction they are going, and how quickly they are moving. It is commonly used… …
8Monte Carlo method for photon transport — Modeling photon propagation with Monte Carlo methods is a flexible yet rigorous approach to simulate photon transport. In the method, local rules of photon transport are expressed as probability distributions which describe the step size of… …
9Hyperespace (Transport) — Pour les articles homonymes, voir Hyperespace. Cet article fait partie …
10Rail transport modelling scales — Further information: Rail transport modelling scale standards One of the smallest (Z scale, 1:220) placed on the buffer bar of one of the largest (Live steam, 1:8) model locomotives. Rail transport modelling utilises a variety of scales (ratio… …
