数值方法

The validity of our method is demonstrated by means of some numerical andexperimental results.

数值模拟计算和与别人用其它方法得到的结果比较证明了这种方法的合理性。

Then it discusses the method and problems of designing the Rare-Earth Permanent Magnet Brushless DC motors, and briefly introduces the principles of Finite Element Method for calculating the electromagnetic field as well as how to use the ANSYS software in checking the electromagnetic values.

然后论述了稀土永磁无刷直流电机设计的方法和需要考虑的问题，并对电磁场计算有限元方法的原理作了简要介绍，以及如何用ANSYS软件对电机进行电磁场数值校核。

The method of inverting flat plate thermal storage cell was proposed to improve the melting and heat transfer rate,and the heat transfer enhancement simulated by numerical method.

为了提高板式相变储能单元的融化传热速率，提出了在相变材料融化过程的适当阶段翻转储能单元以起到传热强化作用的方法，并采用数值法对该方法的传热强化效果进行了分析。

For the time term, we use central difference methods to discrete; for the space term,we use finite volume element methods to discrete.

对方程的时间项，我们采用中心差分的方法离散，对空间项采用有限体积元方法进行离散，文中对误差给收敛性和稳定性给出了分析，同时给出了一些数值结果。

Generally, the PRP method is regarded as one of the most effective CG methods.

在所有的共轭梯度法中，PRP方法被认为是数值表现最好的方法之一。

By analytic geometry method and solving quadratic equation,a computer simulation algorithm of digital projection under arbitrary scanning locus was proposed.The algorithm is based on the rules of attenuation of monochromatic X-rays.Through mathematical modeling and computer simulation,digital projections of ellipsoid and cylinder in circular and helix scanning modes are exemplified respectively,which are proved to be correct by FDK and PI-line reconstruction algorithms.

介绍了一种利用解析几何和求解二次方程仿真任意扫描轨迹下的锥束射线投影数据算法，该方法基于单色射线贯穿物体的衰减理论，通过数学建模与计算机仿真，给出了椭球、圆柱两种典型模型分别在单圆、螺旋线扫描轨迹下的投影数据仿真结果，并利用FDK和PI线重建算法进行验证，证明了该种数值仿真方法的正确性。

The isothermal time independent flow for power-law fluid in a helical pipe with circular section is studied with theoretic method and numerical method in the paper.

本论文在前人工作的基础上，采用理论方法和数值计算方法研究了幂律流体在圆截面螺旋管道内的等温定常流动。

The concept of genetic algorithm, its configuration, operators and existing problems are introduced in this paper. A new algorithm for clustering analysis is presented based on genetic algorithm. There are two characteristics in our approaches. Firstly, the algorithm is the general-purposed and our clustering analyzer can cluster large data set with mixed numeric and categorical attributes.

4介绍遗传算法的概念、算法结构、运算算子及主要存在问题；提出了一种基于遗传算法的聚类新方法MGA，该方法有两个主要优点：一是通用性强，可以对包含数值属性和符号属性的大数据集进行聚类；二是提高了数据挖掘的效率与质量。

It is also shown for the first time that DQEM could be regarded as the combinations of the sub-domain method with the special mixed collocation method.

微分求积法和微分求积单元法是在近年里发展起来，并正在进一步发展的一种数值计算方法，本文对这两种方法的原理和它们在结构力学中的应用进行了较深入系统地研究。

At first, the examples are given to explain a new method in signal processing, in which functions are defined from the viewpoint of multi-scale analysis. Then the authors present "coordinate heft separate" method, discover self-similar structure of points set on plain area; based on this self-similar structure, construct orthogonal complete 2-value function system of high-dimension simplicity; enrich and extend the theory and application of Rademacher function and Walsh function.

首先，举例说明在多尺度分析观点下，信号处理中某些函数定义的新方法；进而提出"坐标分量分离方法"，并由此发现了平面区域上点集坐标数值的自相似结构；在揭示了如此自相似结构的基础上，构造了高维单纯形上的正交完备的二值函数系统；丰富与推广了Rademacher函数及Walsh函数的理论及应用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。