查询词典 numerical analysis

Furthermore, numerical methods for dynamic response and modal analysis of the multi-degree system are introduced.

此外，结构动力学还介绍了多自由度系统动力响应和模态分析的数值计算方法。

Wavelet multi-scale analysis is applied to the research on lunar gravity field and the explanation of lunar inner structure. In this paper, the nearside of the Moon with higher quality data is chosen as the test area, and free air gravity data from "Clementine" mission are used as original data to decompose gravity of some specific mare basins. With the results of numerical test, we also explain the hierarchical structure of the Moon, analyze the thickness of mare fillings and the Moho topography under mare basins, and verify the results by comparisons.

本文将小波多尺度分析引入月球重力场的研究，选取测量数据质量较好的月球近区作为实验区域，以"Clementine"探测器获得的自由空气重力异常作为原始数据对主要月海盆地进行了局部的重力异常分解，解释了月球内部基本分层结构，并利用主要月海盆地的实验结果分析了月海下部质量异常以及莫霍面的起伏形态，与已有研究成果进行比较证明了方法的适用性及结果的合理性。

On basis of the theory of metal plastic fluid and research of die cavity on non axis symmetry extrusion of special shaped products, in virtue of mathematical research results of the conformal mapping theory, by using method of normal convergence, numerical value analysis of mapping function was built.

针对非轴对称金属异型挤压塑性流动及模腔研究的理论课题，借助于近代共形映射数学理论研究成果，利用法线收敛法，建立了映射函数解析方法。

The numerical method established above can not only be used in the analysis of general non-newtonian fluid flow problem but also can be adopted to solve complex engineering problem.

本文所建立的非牛顿流体三维非等温流动数值模拟技术不仅可用于分析一般非牛顿流动问题，在处理目前流动模拟技术难以预测的复杂工艺问题时也表现出较强的适应性。

Our analysis framework relies on the reflected Backward Stochastic Differential equation approach.We characterize the value functions of the noncallable bonds in terms of the reflected Backward Stochastic Differential equation,Then the relationship between the value function of convertible bonds and reflected backward stochastic differential equations with single reflect is built at the same time,and provide the optimal conversion strategy for bondholders.2:We get the value of non-callable convertible bonds by numerical methods.

探讨了可转换债券的最优停时价值与带反射边界倒向随机微分方程解的关系，在市场完备，公司价值只包括股权和可转债这两种权益等各种假定下，给出不可赎回可转换债券的价值函数，证明了不可赎回可转换债券的最优停时问题的解是存在的，同时给出了其最优的转换策略。2：通过数值方法求解不可赎回可转换债券的价值。

Numerical examples of linear and nonlinear vibration equations were performed, the results demonstrate that this method is efficient in dynamic analysis.

就线性和非线性振动方程进行了数值模拟运算，结果表明了该方法在动力响应分析中的有效性。

On the portfolio credit risk analysis, this thesis, based on the credit data's scarcity in China, puts forward a nonparametric method to measure the default correlation coefficients between China's listed companies, and then presented a numerical example to show how to use it in practice.

在组合信用风险分析方面，本文在以往研究的基础上，并针对中国信用数据十分稀少的实际情况，提出了一种对中国上市公司间违约相关系数进行度量的非参数方法，最后用一个数值例子来说明这种方法在实际中的应用。

According to theoretical analysis, it is convergent and has good convergence if the coefficient matrix is a nonsingular matrix. Moreover, examples have been implemented on HP rx2600 cluster, and the data verify that the numerical results of this algorithm coincide with its theoretics.

在理论上，算法只要系数矩阵A是非奇异矩阵就能够收敛，而且有较好的并行性，在HPrx2600集群上进行数值试验，验证了算法的计算结果与理论相一致。

Since two curves have the same coordinates and unit normal vector at the contacting point, the problem of the mesh of two planar curves is transformed into an ordinary differential equation by vector analysis. We have the solution to the equation by numerical method and computer calculation. After repeating the way of computing the solution to the equation, we have the contacting points.

因两曲线於接触点的位置相同，单位法线向量相等，由向量分析使曲线接触问题转变为常微分方程式，藉助数值计算与电脑运算得到方程式解，重覆计算方程式的解即可得每一接触点的位置。

Theoretical analysis and numerical simulation results show that the scheme is feasible.

理论分析和数值仿真结果表明该方案是可行的。

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。