An analytic solution for dimensionless convection-dispersion equation,in which physical dispersion was taken into account to simulate one-dimensional miscible displacement,was presented by using Matlab programming language.
考虑一维物理扩散效应建立了多孔介质注气混相驱的一维无因次对流-扩散方程,并用Matlab程序进行了解析求解。
Based on the discretion of linear kinematic-wave equation by the finite difference method and the concept of numerical dispersion a method is developed to model the physical dispersion.
基于运动波方程差分解的数值扩散在一定条件下可以模拟扩散波物理扩散的新途径 ,对马斯京根 康吉洪水演算方法和具有预见期的洪水演算方法进行了分析 ,给出了方法的稳定性条件 。
Landscape connectivity,as a dominant factor affecting species dispersal,reflects the degree to which the landscape facilitates or impedes organisms\' movement among resources patches.
作为物种扩散的重要影响因子,景观连接度反映了景观促进或阻碍生物体在资源斑块间运动的程度,它也是区域土地可持续利用和生物保护领域的主要指标。
Such processes might include materials diffusing into fibers as well as substances exuding out to the surface.
这些过程包括物种扩散进入纤维和以纤维内部扩散到表面。
Global Solutions to the Three-Species Food-Chain Model and Cooperative Model with Self-and Cross-Diffusion;
带自扩散和交错扩散的三种群食物链模型和互惠模型的整体解
This kind of air flow field is good at contamination diffusion.
这种空气流场结构有利于污染物的扩散。
Integrative Method in Determing Population Diffusion of Exotic Harmful Plants
外来有害植物种群扩散的综合测定方法
Global bifurcation for a three-species predator-prey system with diffusion
带有扩散项的三物种捕食-食饵模型的全局分歧
The dense dispersing medium, the water, permits a species to produce a large seed and yet retain dispersability.
作为稠密的扩散基质的水，允许一个物种产生大型的种子，但仍然保留其扩散性。
It influences dispersion of the population.
它影响种群的扩散。
The Application of Cellular Automata to study Theoretically Annual Plant Population Dispersal
应用细胞自动机对一年生植物种群扩散进行理论研究
Went showed that this active agent diffused into gelatin from living oat coleoptile tips.
温特证明，这种活性物质从活的燕麦胚芽鞘扩散到凝胶中去。
Ecological Studies on Rodent Predating and Dispersing Seeds of Camellia Pitardii and Dendrobenthamia Hongkongensis in the Forest of Kuankuoshui Nature Reserve;
宽阔水林区啮齿类对两种植物果实的采食和扩散研究
Analysis & Studies on the Predator-Prey System s Dynamics with Population s Diffusion and the Influence on Biodiversity;
扩散对污染斑块上捕食—食饵种群生存及生物多样性的影响
Seed Predation and Dispersal of Cherry (Cerasus Pseudocerasus) by Animals in a Dujiangyan Subtropical Forest;
都江堰亚热带森林动物对樱桃果实/种子的捕食和扩散研究
A Study on Firms Optimal Investment Strategies and Diffusion of New Technology under Multiple Generations of Future Innovations:A Real Option Approach;
多代新技术的最优投资策略和扩散研究——一种实物期权方法
The Diffusion and Adoption of Shopping Online Based on the Theory of Innovation Diffusion
从创新扩散理论看网上购物的扩散和采用
Study of Discrete and Reaction-diffusion Biological Dynamic System
离散及反应—扩散生物动力系统的研究
Diffusion of atoms of one metal into another metal.
一种金属中的原子向另一种金属中的扩散叫互扩散，又称为杂质扩散。
The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion.
分子扩散运动两种或更多种物质的分子由于随机的热运动自发混合在一起
A Discrete and Accelerative Method for Two Dimersional Convection-Diffusion Equation
二维对流扩散方程的一种离散与加速方法