The good properties of solution and diffusion of supercritical fluid are helpful for removing the deactivation of catalysts in catalytic reaction.
利用超临界流体良好的溶解性能和扩散性能可以很好地解决非均相催化剂的失活问题。
The aim of this paper is to study the solution and diffusion behavior of small-molecule solvent in polymer membrane based on the solution-diffusion model.
本论文的主要目的是基于渗透汽化过程提出的溶解扩散模型，研究汽油组分小分子在高分子膜材料中的溶解行为和扩散行为。
The fluoride concentration in the trapping solution is determined directly in the diffusion dish, after neutralization and buffering with a fluoride-sensitive electrode.
采用氟化物敏感电极，经中和和缓冲，在扩散盘中可直接测得捕集溶液中的氟化物浓度。
The effect of exotic environment such as salt solution type and freeze-thaw cycles on chloride diffusion in concreteies was studied by experiment.
通过试验研究了盐溶液类型及冻融循环等外部环境对混凝土中氯离子扩散性能的影响。
Computer calculations have been made on the dimensional solution to the anisotropic diffusion convection equation for solar cosmic rays propagating in an uniform and unbounded interplanetary medium.
应用电子计算机计算了太阳宇宙线在均匀并无限的行星际介质中传播的各向异性扩散对流方程的量纲分析解。
The problems of solution diffusion are studied in detail by holography based on the diffusion mechanism and experimental technique.
本文从扩散机理和实验技术上，详细讨论了激光全息术用于研究溶液扩散的问题。
A modified light diffusion solution model was proposed from a heuristic version of beam spreading (BS) model and diffusion approximation (DA) theory.
受到光束扩散模型和漫射近似理论的启发，提出了一种改进的光传输求解模型。
The results indicate that sintering temperature plays a prime role in the development of the number of phase layers and affects the thickness of diffusion solution layer by the thermal time.
实验结果表明，烧结温度对相层数量起主要作用，并和保温时间一起影响扩散溶解层厚度。
Our proof of the convergence is based on an asymptotic diffusion expansion and requires error estimates on a matched boundary layer approximation to the solution of the discrete-ordinate method.
其收敛性的证明是依据其渐近扩散展开式，在边界层上得到的误差估计逼近其离散纵标方法的解。
This Paper presents one-dimensional backward analytical solution of diffusion equations and its application to optimization of fuel utilization.
本文介绍一维扩散方程的逆向计算方法，并讨论了该方法在核燃料利用最优化分析上的应用。
Dissolution Capacity of Hydrophobic Drugs in Aqueous Solution--Solubility and Diffusion Gibbs Free Energy;
这种的溶解度可能与非水合物的溶解度有明显的不同。
Meanwhile, the removal of the free sulfur from the chalcopyrite will facilitate the ion diffusion and the further oxidative solution of chalcopyrite.
同时，清除黄铜矿表面氧化溶解产物——单体硫后，有助于离子扩散和黄铜矿的进一步氧化溶解。
The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.
利用打靶法、上下解方法和不动点定理等工具，研究有孔区域上一类具非局部边值条件的非线性扩散方程。
The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.
给出了分子流扩散方程的边界条件，推导出入口压力在线性近似下方程的解。
The differential equations of coal particle gas diffusion under the third kind boundary condition and its analytical solution have obtained on the basis of theoretical analysis.
基于理论分析建立了第三类边界条件下的煤粒瓦斯扩散方程，并给出了解析解。
A strict mathematical deduction is conducted under given boundary condition, then the analytical solution of oil droplet's transport and diffusion equation is presented.
在所给定的边界条件下，进行严密的数学推导，给出了油滴输移扩散方程的解析解。
The almost periodic solution of non-autonomous diffusion Schoner models is discussed through Liapunov function and differential inequalities.
利用李雅普诺夫函数和微分不等式探讨带扩散Schoner模型的概周期解的稳定性问题。
The petroleum migration mainly in an oil phase, as for natural gas migration, it can occur in water-solution, oil-solution, free gas and diffusion phase.
石油运移的相态主要是油相，天然气可以是水溶相、油溶相、气相和扩散相。
The results show that the mother sheet and the grown layer are bonded by diffusion forming a solid solution.
试验结果表明，母带和凝固层靠相互扩散形成固溶体而实现良好的冶金结合。
The simulation is developed by using cross flow mathematical model and solution-diffusion model for natural gas separation process in spiral-wound membrane modul.
利用错流流动模型及膜渗透的溶解-扩散机理，对螺旋卷式膜组件中天然气的分离过程进行了模拟计算。
The compactness of the deposit is obviously increased through the inhibition to agar gels to the convection and diffusion of the solution.
本发明利用琼脂凝胶对溶 液中的对流和扩散的抑制作用使沉积物的致密度得到了明显提高。
In this paper, a strict mathematical deduction is finished under given boundary condition, then the analytical solution of oil droplet's transport and diffusion equation is followed.
在所给定解条件下，进行严密的数学推导，给出油滴输移扩散方程的解析解。
In chapter 4, Homotopy perturbation method is successfully extended to solve time-fractional diffusion equation with a moving boundary condition and an approximate solution is obtained.
在第4章，同伦摄动的方法被成功应用到求解带有一个可动边条件的时间分数阶扩散方程并且得到了一个近似解。
The results showed that percutaneous fluxes of 1 in pH7.4 phosphate buffer solution with anodal and cathodal iontophoresis were 230% and 45% of that of the passive diffusion flux respectively.
结果表明，1生理盐水饱和液阳极导入时的透皮速率是被动扩散的2．3倍，阴极导入时药物的透皮速率是其被动扩散的45％，说明电渗作用明显促进了分子型药物1的经皮渗透；
The results showed that percutaneous fluxes of 1 in pH7.4 phosphate buffer solution with anodal and cathodal iontophoresis were 230% and 45% of that of the passive diffusion flux respectively.
结果表明，1生理盐水饱和液阳极导入时的透皮速率是被动扩散的2．3倍，阴极导入时药物的透皮速率是其被动扩散的45％，说明电渗作用明显促进了分子型药物1的经皮渗透；
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