The Chapman-Enskog theory provides the relation between the diffusion coefficient and the collision cross section which is the result of multiple integration of the scattering angle of all possible initial conditions of the collision. The scattering angle is obtained by numerical integration of the ...
17.The effective diffusion coefficient and rate constant of intraparticle transport werecalculated. 求出了颗粒内有效扩散系数和颗粒内扩散速率常数。 18.The surface ratio of conus to disc wascalculatedusing a planimeter. 我们使用面积计测量圆锥与视神经盘表面比值。
where (D) refers to the diffusion coefficient and (dC/dx) is the gradient (and is a derivative in calculus). So Fick’s First Law fundamentally states that random particle movement from Brownian motion leads to the drift or dispersal of particles from regions of high concentration to low con...
It is then possible to correct for them by using an algorithm in which each line of the image in the phase-encoding direction is considered in turn, with only one parameter (the scale) to be found by searching.关键词: EPI apparent diffusion coefficient (ADC distortions diffusion imaging ...
18.The effective diffusion coefficient and rate constant of intraparticle transport werecalculated. 18.求出了颗粒内有效扩散系数和颗粒内扩散速率常数。 评价该例句:好评差评指正 19.She caught a coollycalculatingglint in the other woman’s eye.
The diffusion coefficient for nitrogen in steel at this temperature is 6×10-11 m2/s, and the diffusion flux is found to be 1.2×10- 7 kg/m2-s. Also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3. How far into the sheet ...
What is permeability coefficient? A quantitative measure of the rate at which a molecule can cross a membrane such as a lipid bilayer; expressed in units of cm/s and equal to the diffusion coefficient divided by the width of the membrane. What is apparent permeability? Apparent permeability is...
It is the equation for calculating mass flux before running calculation in fluent, because after running calculation, I will get the results and I will calculate mass flux from those results by the equation provided by fluent: Ji=((density*Diffusion coefficient of a species)+(den...
real D;/* scalar diffusion coefficient*/ real rho;/* mixture density*/ flux = 0.0; begin_f_loop(f, f_thread); { c0 = F_C0(f,f_thread); tc0 = THREAD_T0(f_thread); BOUNDARY_FACE_GEOMETRY(f,f_thread,A,ds,es,A_by_es, dr0) grad[0]=C_UDSI_G(c0,tc0,index)[0]; grad[...
the topology, the so-called pseudo-pigment substance optical parameters are determined in the same manner by the calibration scale making, and iv), specify the pseudo-pigment and pigment-related) or (and ingredients of the colorant system that shows the diffusion of light in the granular medium...