G. Diffusion Coefficient-Formula Weight Correlation Analysis via Diffusion-Ordered Nuclear Magnetic Resonance Spec- troscopy (DOSY NMR) to Examine Acylglycerol Mixtures and Biodiesel Production. Energy Fuels 2010, 24, 4518-4521.Socha AM, Kagan G, Li W, et al. Diffusion coefficient-for- mula ...
其中,dx=limΔt→0(xt+Δt−xt), f(⋅,t):Rd→Rd 是drift coefficient(向量函数),g(⋅,t) 是diffusion coefficient(标量函数),w 是标准维纳过程(标准布朗运动),dw 可以看作是无限小的白噪声。 SDE 方程中 f,g 的设置并不是固定的,而是人为设计的。后面我们会看到,其实 NCSN 和 DDPM 本质上就...
The Darcy permeability is similar to the diffusion coefficient, which represents the viscous resistance of a solid material to fluid flow under a pressure gradient, and is related to the microstructure of the solid skeleton and the viscosity of the fluid. ...
Therefore the question arises whether it is possible to find a general expression for the diffusion coefficient of such systems and to relate the various other theories to it. The most general and rigorous formula for the diffusion coefficient has been given by Ackerson (1) and it is the ...
during a certain time interval (t) in a medium whose coefficient of diffusion (D) is known,Dbeing equal to one-half the average of the square of thedisplacementin thex-direction. This formula for probability “density” allowsPto be plotted againstx. The graph is the familiarbell-shaped ...
其中f(\cdot) 被称为 漂移系数 (drift coefficient),g(t) 被称为 扩散系数 (diffusion coefficient),\boldsymbol{w} 是一个标准的布朗运动,\mathrm{d}\boldsymbol{w} 就可以被看成是一个白噪声。这个随机微分方程的解就是一组连续的随机变量 \{\boldsymbol{x}(t)\}_{t\in[0, T]},这里 t 就是把...
美 英 un.扩散系数;扩散率 英汉 网络释义 un. 1. 扩散系数 2. 扩散率 释义: 全部,扩散系数,扩散率
The effective activation energy Eeff(L) for diffusion to a distance L can be determined in analogy with eq.(10) as: Eeff (L) = Emax − aó + σln 1 - d L õ (11) It is seen that the diffusion coefficient is both...
Regularity of the Diffusion Coefficient Matrix for Lattice Gas Reversible under Gibbs Measures with Mixing Condition 热度: 概述Do Clouds Compute A Framework for Estimating the Value of Cloud Computing 热度: Fusing Storage and Computing for the Domain of Business Intelligence and Analytics Research...
The oscillatory problem of solution to the systems of hyperbolic partial differential equations with nonlinear diffusion coefficient is reduced to which differential inequality has noteventual positive solution by using the Greens formula and boundary value conditions. Thereby, sufficient condition * for ...