查询词典 three body problem

This thesis consists of two parts. The first one was that boundary value problem was discrete with five point difference method. Three kinds of memory formats were studied, which were full matrix, half band width and row compress sparse. Full matrix memory format and half band width memory format first was contrasted. The results show that half band width has efficiency in space. Then the algebraic system of finite element method was solved by Gauss-Seidel iteration method to popular row compress sparse memory format.

本论文由两部分组成，第1部分针对边值问题，用5点差分格式进行离散，并对离散矩阵这类大型稀疏矩阵，研究了系数矩阵的3种存储格式的优劣，即：满矩阵存储格式、半带宽存储格式和按行压缩稀疏存储格式，首先我们将满矩阵存储方式和半带宽存储格式进行了对比，迭代法的数值实验表明：利用半带宽存储的矩阵在空间运算方面具有高效性；然后针对目前数值实验中流行的按行压缩稀疏存储格式，实现了有限元离散代数系统的迭代法的求解。

In chapter two and chapter three of this paper, much adjustment method and process of third-order and forth-order triangulation and bench mark of Shandong province are discussed.The construction goal, function design, system performance, system characteristic, and important problem exploitation are discussed in database design segment.

数据库系统设计部分介绍了数据库系统的建设目标、功能设计、系统的性能、特点以及研究开发过程中的重要问题说明等内容，对数据库系统进行了总体评价。

IN CHAPTERR. THREE,we study the wavelet numerical solution of simply-supportedboundary value problem of biharmonic equation.

第三章，我们考察了双调和方程简支边值问题的非平稳小波数值解。

The nonlinear stability of three-dimensional disturbances for the Blasius boundary layers is studied. We adopted here the high accuracy method of using the expansions in orthogonal functions along the normal direction and the effective algebraic mapping to deal with the problem in the infinite region. The initial solutions of two-dimensional harmonic waves are given by Landau expansion, and the mean-flow-distortion is calculated by the approximation equation.

运用Landau展开给出了二维谐波的初始解、通过求解线性PSE而得到TS波和C型亚谐扰动的初始站值、以及近似地模拟初始站的均流变形值，以此为初始条件，并结合迭代-预估校正方法来实现非线性PSE的求解和推进，详细地研究了非平行边界层三维扰动C型失稳过程。

Developed in 1990's, the distorted wave Born approximation methodwhich deal with the problem of three bodies of interaction in the collision betweenelectron and atom provide the theoretical criterion to calculate the tripledifferential cross section of the (e,2e) reaction.

二十世纪九十年代发展起来的处理电子—原子碰撞三体相互作用问题的畸变波玻恩近似方法，为计算原子的(e，2e)反应的三重微分截面提供了理论标准。

Chapter three focuses the research emphasis on the knowledge acquisition problem which is the bottle-neck of knowledge-base construction.

第三章对知识获取这一构建知识库过程中的瓶颈问题进行了深入研究。

In this paper, the authors deal with the existence of positive solutions for a nonlinear singular third-order three point boundary value problem.

论文摘要：本文研究了一类非线性奇异三阶三点边值问题的正解存在性。

The existence of three positive solutions for boundary value problem of third order differential equation is studied.

证明了几个新的最大值原理，并利用这几个新的最大值原理证明了两类三阶微分方程边值问题解与正解的存在性。

The existence of positive solutions for singular fourth order three-point boundary value problem was investigated.

1引言及预备知识二阶三点边值问题的研究是一个很重要的领域，最近几年的研究也很多。

He branched his treatment of the problem into three equal parts.

他把他的问题分成三个相等的部分处理。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。