Therefore, the central difference to deal with both the convectional and the diffusion term was adopted.
针对反向计算的如上特点，我们对对流项和扩散项均采取了中心差分的处理方式。
For example, human skin's diffusion term is very high, whereas it's single scattering term is very small.
例如，人体皮肤的扩散来说是非常高，而它的单散射而言是非常小。
Then the existence and uniqueness of weak solutions for a BSCB System with nonlinear diffusion term are established on 2-d bounded domains.
其次我们得到一类带有非线性扩散项的MBSC B方程组在二维有界区域上弱解的存在唯一性。
An implicit method is employed in solving diffusion term and projection term, such as Gauss-Seidel iteration method, Fast Fourier Transform.
在求解扩散项和投影项时，采用隐式的求解方法，例如高斯—塞德尔迭代法、快速傅里叶变换。
Research shows that stock option price be adjusted for stock the payment of continuous dividends with having time-delay in the diffusion term and drift term.
研究表明，股票价格在漂移项和扩散项具有时滞时，股票支付红利时对期权价格有一个调整。
In addition, unlike that in the forward calculation, the diffusion term in the backward calculation is prone to accumulate errors, thus renders the whole scheme unstable.
此外与顺时计算不同，扩散项在反向计算时更容易积累误差，从而使计算格式趋于不稳。
Diffusion is when you have a fluid in which you are introducing some substance, and you want to figure out how that thing is going to spread out, the technical term is diffuse, into the ambient fluid.
扩散就是，当在某液体中加入某物质时，想算出该物质怎样在周围的液体中散开，专业术语叫做扩散。
For the slow diffusion equation with the source term, we also obtained the finite propagation property of solution.
此外，对于具有源项慢速扩散方程，得到了解的有限传播性质。
In this paper, these shortcomings of inverse diffusion model were considered and the variational model of image enhancement coupling high order regularization term was proposed.
针对以上问题，提出了一种引入高阶正则项约束的逆扩散变分图像增强模型。
The integral N-S equation is regarded as a special diffusion equation and the pressure term, convective term are regarded as source terms.
将此N S方程看作一个特殊的扩散方程，将压力项与对流项看作是源项，得到一个积分方程。
Modifying the salinity difference format and salinity equations of the original model, the present model USES the second-order accurate difference format and introduces the term of physical diffusion.
改进了原模式的盐度差分格式和方程，采用二阶精度差分格式并引入了物理扩散项。
This class of nonlinear diffusion equation with convection term resemble to the celebrated equation arising in statistical mechanics and have important physical sense.
这类具有对流项的非线性扩散方程，类似于著名的统计力学方程，具有重要的物理意义。
The uniqueness problem of the weak solutions of the time dependent drift diffusion model for semiconductor equation with avalanche term is considered.
研究带雪崩项的半导体漂移-扩散模型方程弱解的惟一性问题。
The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.
讨论具有一般形式的对流项、扩散项、边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性。
Keep the diffusion of smoke into the atmosphere to the earth's temperature rise, visible to the earth is impossible in the short term the fever.
不断向大气扩散的烟使到地球体温升高，可见得地球是不可能在短期内退烧的了。
Based on partial differential equations (PDE), we propose a novel image magnification approach which consists of oriented diffusion, fidelity term and shock filter.
提出一种新的基于偏微分方程(PDE)的图像放大算法。算法模型由方向扩散、保真项和冲击滤波构成。
And the new growth theory which emphasizes economies of scale and knowledge diffusion directly proved that spatial optimization can promote long-term growth rate and bring about dynamic benefits.
而强调规模经济和知识扩散的新增长理论直接证明了空间优化能够提高各地区的长期增长速度，从而带来动态利益。
In this paper, a modified diffusion model with a non-local polymerization term is proposed to describe the formation of reflective holographic polymer-dispersed liquid crystals.
在本文，我们提出一种用非局域聚合法修正过的分散模式，描述反射式全息聚合物散射型液晶的形成。
Long-term diffusion model of atmospheric pollutant (ISCLT3) called regulatory model is a kind of Gaussian model recommended by U. S. Environmental Protection Agency.
大气污染长期扩散模型（ISCLT3）是高斯 模型的一种，是美国环境保护署强制推荐的大气污染扩散 模型，并称为法规 模型；
Long-term diffusion model of atmospheric pollutant (ISCLT3) called regulatory model is a kind of Gaussian model recommended by U. S. Environmental Protection Agency.
大气污染长期扩散模型（ISCLT3）是高斯 模型的一种，是美国环境保护署强制推荐的大气污染扩散 模型，并称为法规 模型；
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