The effective diffusion coefficient of a diffusant[clarification needed] in atomic diffusion of solid polycrystalline materials like metal alloys is often...

diffusivity or diffusion coefficient is usually written as the proportionality constant between the molar flux due to molecular diffusion and the negative...

activation energy for diffusion. Atomic diffusion in polycrystalline materials is therefore often modeled using an effective diffusion coefficient, which is a combination...

effective diffusion coefficient in the strain rate equation depends on whether or not the system is dominated by core diffusion or lattice diffusion and...

solve for the diffusion coefficient, D. Fick's first law can be used to derive his second law which in turn is identical to the diffusion equation. Fick's...

The grain boundary diffusion coefficient is the diffusion coefficient of a diffusant along a grain boundary in a polycrystalline solid. It is a physical...

interdiffusion, hence most models of ion mixing involve an effective diffusion coefficient that is used to characterize thickness of the reacted layer...

d and mass m (self-diffusion). In this case, the elementary mean free path theory of diffusion gives for the diffusion coefficient D = 1 3 ℓ v T = 2 3...

{D_{i}}{\pi t}}}} , where t is time, Di is the ith cation effective diffusion coefficient (cm2/d), which depends on pH of contacting water as Di = Di0·10–pH...

In engineering, the mass transfer coefficient is a diffusion rate constant that relates the mass transfer rate, mass transfer area, and concentration change...

Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. The theory was popularized by Everett...

machines has led to the neoclassical diffusion concept. Bohm diffusion is characterized by a diffusion coefficient equal to D Bohm = 1 16 k B T e B , {\displaystyle...

}}c^{*}} where: Deff is the effective diffusion coefficient (taking tortuosity into account, if any); δ is the diffusion layer thickness; c* is the concentration...

absorption (black) and the effective attenuation (magenta) coefficient spectra, as shown in Figure 6 (a). 'cite: Anisotropic diffusion filter for dorsal hand...

The disk diffusion test (also known as the agar diffusion test, Kirby–Bauer test, disc-diffusion antibiotic susceptibility test, disc-diffusion antibiotic...

increases the hydraulic conductivity (K, m/s) of concrete and the effective diffusion coefficients (De, m2/s) of solutes and dissolved gases in the concrete matrix...

can be described by a generalization of the usual diffusion equation where the diffusion coefficient, instead of being a constant scalar, is a function...

to prevent or to retard the inter-diffusion of the two superposed metals. Therefore, to be effective, a good diffusion barrier requires inertness with respect...

the higher diffusion coefficient will be larger, so there will be a net flux of atoms from the material with the higher diffusion coefficient into the material...

the limiting factor, and almost all such collisions are effective), the quenching rate coefficient is given by k q = 8 R T / 3 η {\displaystyle k_{q}={8RT}/{3\eta...

affected by biological parameters: The effective diffusion coefficient, which is dependent on extracellular diffusion, intracellular transport rates, and...

molecule itself. The diffusivity for Knudsen diffusion is obtained from the self-diffusion coefficient derived from the kinetic theory of gases: D A...

In fluid dynamics, eddy diffusion, eddy dispersion, or turbulent diffusion is a process by which fluid substances mix together due to eddy motion. These...

where D = s 2 / 2 τ {\displaystyle D=s^{2}/2\tau } is the effective diffusion coefficient. Here s {\displaystyle s} is the step size or distance traveled...

_{a}+\mu _{s}')}}} is the diffusion coefficient and μ's = ( 1 − g ) {\displaystyle =(1-g)} μs is the reduced scattering coefficient. Notably, there is no...

diffusion curves, and D s , e f f {\displaystyle Ds,eff} is an effective diffusion coefficient (eq. 3) which relates the inverse gradient of the fit polynomial...

Partition coefficient – Ratio of concentrations in a mixture at equilibrium Scientific laws named after people Graham's law – Graham's law of diffusion Henry...

changes volume slowly at constant effective stress over a longer time-scale than consolidation due to the diffusion of water. To distinguish between the...

multiples of electron charges. In 1905, Albert Einstein found the diffusion coefficient D {\displaystyle D} of an ion to be proportional to its mobility...

reasonably well approximated as an “effective” Brownian motion, i.e., DB represents the effective diffusion coefficient of the moving scatterers. In order...