将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
一个略加改进的电化学氢渗透技术被用于测定氢在铁膜中的扩散系数。
The diffusion coefficient of hydrogen in an iron membrane was measured using slightly improved electrochemical hydrogen permeation technique.
介绍了反应物在聚合物膜中扩散系数的测定方法。对于聚合物修饰电极上反应机理的研究提供了有力的指导。
Measuring method of reactant diffusion coefficient in polymer film was introduced. This would provide potent guidance for researching reaction mechanism.
并通过分子模拟方法模拟了噻吩和正庚烷在PEG膜中的扩散系数。
Molecular simulation is used to calculate the diffusion coefficient of thiophene and n-heptane in PEG membrane.
影响聚合物包膜肥料养分释放的因素主要有：膜厚、颗粒半径、扩散系数、养分组成及其溶解特性。
The factors that influence the nutrients release behavior are as followings: membrane thickness, granule radius, diffusion coefficient, nutrients composition and nutrient dissolving property.
三种抗衡离子膜的平衡吸收实验表明，该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关，而且取决于平均扩散系数。
The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well.
介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。
The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.
用拟线性化方法时方程求解并进行参数估计，得到了离子在聚苯胺膜中的扩散系数。
The solution of the equation and estimation of the parameters were carried out by the quasilinearization method.
结果显示，随着水蒸气活度的增加，膜内水分子簇尺寸增大，并在膜的微孔内产生多层吸附甚至毛细管冷凝，导致扩散系数迅速降低。
With the increase of mean cluster size(MCS)at different water activities, multi-layer sorption and capillary condensation occur, which lead to the diminution of diffusion coefficients in P…
通过对五组分模拟汽油纯组分在PEG膜中的溶胀实验结果回归得到各组分在PEG膜中的吸附系数和扩散系数。
The adsorption coefficient and diffusion coefficient of pure component for five component simulated gasoline in PEG membrane can be regressed from sorption experiment.
正是由于噻吩类硫化物和各烃类化合物在吸附系数和扩散系数大小上的差别为PEG膜可脱除汽油中硫化物提供了理论依据。
It is precisely because the difference between adsorption coefficient and diffusion coefficient provides a theoretical basis for the gasoline desulphurization by PEG membrane.
正是由于噻吩类硫化物和各烃类化合物在吸附系数和扩散系数大小上的差别为PEG膜可脱除汽油中硫化物提供了理论依据。
It is precisely because the difference between adsorption coefficient and diffusion coefficient provides a theoretical basis for the gasoline desulphurization by PEG membrane.
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