查询词典 convergence

The finite difference approximation for this equation is presented.The stability and convergence of the finite difference approximation are analyzed.

并证明了显式格式条件稳定和条件收敛，而隐式格式则是无条件稳定和无条件收敛。

The main contents of this course include: the construction, convergence, compatibility and stability of finite difference scheme of elliptic equation, parabolic equation and hyperbolic equation, the construction method and computation format of finite difference scheme of a system of partial differential equations.

本课程主要内容有：椭圆型方程的有限差分格式的构造，有限差分格式的收敛性，相容性及稳定性、抛物型方程的有限差分格式的构造，有限差分格式的收敛性，相容性及稳定性、双曲型方程的有限差分格式的构造，有限差分格式的收敛性，相容性及稳定性、偏微分方程组的有限差分格式的构造方法及有关的计算格式。

In the first part we consider the convergence and stability of finite difference scheme for Landau-Lifshitz equation in one dimensions space and 2d radial symmetric Landau-Lifshitz equation.

在第一部分，我们研究一维Landau-Lifshitz方程非齐次边值问题和二维柱对称Landau-Lifshitz方程Neumann边值问题的有限差分格式。

In conventional measurement work, total station, level, convergence gauge and other instruments are usually used. This method has the shortcomings such as slow speed, serious disturbance with the construction, finite object pionts,unstable measure quality and so on.

对隧道变形量测的传统方法大多是基于全站仪，水准仪，收敛计等设备，此种方式有着速度慢，与施工干扰较大，量测点数有限，量测质量不稳定等缺点。

Thus the finite progression could be used to calculate the scalp potentials distribution in stead of the infinitive progression in a certain error range. A study on the convergence speed was conducted too.

无论脑电的正向问题还是逆向问题，都离不开头颅构型的假设，一般这些假设有均匀球模型、非均匀球模型、偏心球模型等。

This grey method is an analysis one for small sample finite sequence, which can be used for judging the convergence rate of a convex-concave sequence, or an irregular curve sequence, or several irregular curve sequences, and for comparing one with another, and can be also employed in other field.

该灰色方法是一个有限序列小样本的分析方法，它不仅可以用于凸凹单个序列的收敛速度判断，也可以用于一般情况的单个序列的收敛速度判断，而且，它还可以用于多个序列的收敛速度判断和相互比较，以及在其它领域的数值分析。

A convergence of the section sum in stochastic sequence under finite state is produced with the help of same distribute and comparative function of stochastic sequenct.

利用随机序列的同分布性及比较函数，导出了有限状态随机序列部分和的一个收敛性质。

Property 3 Deleting, adding and altering the finite terms of the infinite series keep the convergence of the series.

性质3 在级数中去掉、加上或改变有限项，不会改变级数的收敛性。

This algorithm made the GA have certain memory function by importing a flag bit, consequently, it could search in the two subgroups respectively. At the same time, it was only one subgroup that adopted the elitist model. All these could increase the probability of convergence and ensure correctness of the result.

该算法通过在编码过程引入一个标志位，使遗传算子具有一定的记忆功能，从而分别对两个子群进行搜索，同时只对其中一个子群采用最佳个体保存法，提高了收敛的概率，保证了最终结果的正确性。

In order to overcome the weakness of premature convergence appearing in GA, an improved genetic algorithm is proposed and applied in the proposed and applied in the flow shop and job shop scheduling problem.

为了克服遗传算法容易出现提早收敛的缺陷，在基本遗传算法基础上对选择和交叉算子进行了改进，并将改进的遗传算法应用于车间调度问题。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。