查询词典 numerical method

Based on the principle of the analytic hierarchy process, under the condition of the given pairwise comparison judgment matrix of the decision maker, a new method to determine the decision maker's priority vector for the comparison objects, called chain comparison method, is proposed with a numerical example illustrating its applicability.

基于层次分析法(analytic hierarchy process， AHP)的基本原理，在假定决策者两两比较判断矩阵已知的情况下，提出了一种根据两两比较判断矩阵确定决策者对决策对象的综合决策权重向量的新方法―链比较法，并用一个数值例示进行了说明。

Meshless method is a new numerical method on problem for determining solution of differential equation.

无网格法是求解微分方程定解问题的一种新数值方法。

For nonlinear harmonic oscillators systems of coordinate coupling and momentum-coupling, one obtains a group differential equations for physical parameters about flow parameter by the numerical analysis method, one finds this method can diagonalize the Hamiltonian.

通过数值分析物理参数随流参数变化规律，给出了对角化的哈密顿量。

The finite difference method is one important numerical method for fluid dynamics.

其中有限差分方法是一种重要的数值计算方法。

Based on initial condition, during certain time span, numerical analysis method of differential equation, algebra iteration and optimization method are used to solve response of generalized system and to analyze stability of generalized system.

从初始条件出发，在一定时间长度上，采用微分方程数值积分法、代数迭代和优化方法来求解系统响应，获得非线性广义系统稳定性的数值分析方法。

Spectral method is one of important numerical method for solving differential equations.

谱方法是微分方程数值求解的重要方法之一。

For this reason, the project creates the mathematical model and numerical method of backcalculation of layer moduli in asphalt pavement based on homotopy method in accordance with the theories of differential topology and optimization. Through selecting the rational objective functions of backcalculation of moduli, a large number of deflection basins of asphalt pavement with FWD are made the backcalculation of moduli to solve effectively the present problems and ensure the reliability of backcalculation of layer moduli in asphalt pavement.

为此，本项目根据微分拓扑和最优化理论，建立了基于同伦方法的沥青路面模量反算的数学模型和计算方法，并通过选取合理的模量反算目标函数，对大量FWD实测的沥青路面弯沉盆进行了模量反算，从而有效地解决了目前存在的问题，保证了沥青路面模量反算的可靠性。

The theory system and numerical method is a new direct method.

该理论体系和数值方法是一种直接方法并可推广到其他领域。

The results of parameter analyses show that, the direct numerical integration method is much more accurate than JC method when the variables are nonlinear and have large variability.

因此本文依据直接积分的基本思想，通过理论分析解决直接积分法的几个关键问题，编制了能应用于可靠度计算的计算机程序，通过试题检验证明该法较JC法具有更高精确性，可用于结构系统可靠度计算。

The solution of some practical problems in engineering can be regarded as that of periodic solution of nonlinear autonomous systems according to the opinion of mathematics, The problems of this kind are analysed by means of the direct numerical method in this paper,The simple and convenient Draw Newton Method is applied for solving the parameter vectors in iteration course along with the calculation of a practical engineering problem.

日I崖旨J，'口工程中的一些实际问题往往可以归结为非线性自治系统，例如描述同步发电机暂态稳定性问题的转子摇摆方程，即是一典型的非线性自治系统。虽然可以用各种小参数摄动法求解非线性系统，但是这类方法是依据对线性系统的解进行"摄动"来逼近非线性系统解的。因而当系统

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。