查询词典 numerical method

In sphere approximate, GPS/Gravity-BVP is Neumann problem over exterior spherical domains. Then the natural boundary reduction, suggested by Feng and Yu, is applied to deal with the three dimensional problems. By expansion in spherical harmonics, the natural integral equations of harmonic problems over exterior spherical domains are obtained. Meanwhile, a numerical method for solving geodetic BVP is developed.

在球近似下将GPS-边值问题转化为Neumann外问题，用自然边界元法进行自然边界归化，得到自然边界积分方程，再求自然边界积分方程的数值解，与其他边界元方法相比，自然边界元法的计算量大大减小，并且具有很好的逼近性质，能有效地处理奇异积分，是求解GPS-边值问题有效方法。

The thesis analyzes the quantum properties of the soliton combining the analytic and numerical method. It includes the following several parts (the bold parts are creative work): 1. We obtained the quantum field equation of optical soliton in the lossy fiber by means of heat reservoir theory.

本论文采用解析与数值模拟相结合的方法来分析孤子的量子特性，主要内容包括以下几个方面（黑体部分属于创新性的工作）： 1、用热库理论得到了考虑光纤损耗的光孤子传输的量子场方程。

Finite analytic numerical method combining with conformal map has been used to study the diffusion problems at oblate hemispheroid microelectrode.

应用有限分析法和保角变换研究了半扁球微电极上的暂态扩散问题。

A numerical method to estimate hemolysis level in blood pump was presented and hemolysis indices were calculated.

给出了一种利用数值方法计算溶血指标的方法，并通过溶血指标的计算评价了血泵内的溶血程度，发现雷诺切应力是导致溶血的主要原因。

However, they did not give the numerical method for computing the homogenization parameters and solve the homogenization equation.

然而，他们没有给出计算均匀化参数和解均匀化方程的数值方法。

The present paper mainly focuses on study of a numerical method of Radiation Hydrodynamics through calculation of some physical models.

本文的主要工作就是对三维的数值离散计算方法进行研究，编制程序对一些物理模型进行计算。

The research on numerical method for hyperbolic conservation laws is one of the important directions in computational mathematics.

中文摘要：双曲型守恒律方程数值方法的研究，是计算数学中的一个重要研究方向。

A simple formula about the maximum atoms inthe icosahedral clusters and the range of interaction potential was proposed and proved to be rightby numerical method.

二十面体团簇所包含的最大原子数和有效势程之间的关系可以用一简单的关系式来描述。数值计算的结果与我们的理论相一致。

It is proved by the analytical and numerical method that the modulus of the Z transform of a finite impulse response sequence has no extreme values at poles (with maximums along imaginary axis and no extreme values along real axis), and the negative second order derivative of the modulus normalized along frequency axis with respect to angular frequency has maximums at the poles.

根据实测瞬态电磁脉冲响应，较好地反演了导体球和导体长椭球的冲激响应，测得了它们的雷达截面和谐振频率。用解析与数值相结合的方法证明了有限冲激响应序列Z变换的模在极点无极值（沿虚轴有极大值，沿实轴无极值），而沿频率轴的归一化值对角频率的负二阶导数在极点有极大值。

A numerical method for the solutions to two-phase viscous incompressible flow of fluid with moving interface is presented.

本文采用了等值面函数方法计算含有运动界面的不可压缩两相黏性流动问题。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。