查询词典 numerical analysis

It is shown by the analysis of its time complexity and completeness as well as the numerical experiment that the proposed algorithm can achieve the goal of completeness and rapid convergence.

对算法进行的时间复杂度和完备性分析以及数值实验表明，基于遗传算法的粗糙集属性约简算法具有完备、快速收敛等特点。

The conventional numerical simulation of a reverberant field as a launch acoustic environment was introduced. Following the reciprocity theorem used in the coupled FE-BE model, the structural response due to reverberant acoustic excitation was substituted by the sound pressure caused by force excitation on the structure, then the output response power spectrum density of the coupled model subjected to reverberant environment was evaluated based on the stochastic analysis principle.

首先介绍了传统的构建混响声场的数值模拟方法；其后利用声振耦合中的互易定理，将混响声场的激励问题转化为结构模型上力激励引起的场点声压响应问题，并采用随机分析原理，用谱分析方法推导了结构在混响声场激励下的响应计算公式；最后建立了航天器典型结构的声振耦合模型，并分别用传统方法和利用互易定理的方法进行了数值模拟。

The idea is given that combining regular mesh with finite element mesh and using low-order and high-order cover displacement function in numerical manifold method, it make preprocess and program analysis, precision and efficiency for coordination.

4利用数。。。更多值流形方法对隧道工程中衬砌结构进行了尝试性的分析，提出了结合规则网格和有限网格并行、高低阶覆盖位移函数混合计算的思想，以达到前处理和程序计算、计算效率和求解精度的协调。

We discuss the relative motion of the two solitons from analytical analysis and numerical simulation.

从解析和数值模拟方面讨论了孤子之间的相对运动情况。

Then the pressure correction method is used to carry out numerical calculation. According to aforesaid, the paper has used the method in example. Through analysis of the prototype pump, it puts forward two remodification approaches and solves them.

本文结合实例，通过对原型泵CFD计算结果的分析，提出了两个优化改型方案，并对优化改型方案进行了数值计算。

By adopting surface molding to obtain solving region and then carrying out numerical calculation and analysis of flow field in centrifugal pump, accurate remodification information is obtained and optimized impellers which have excellent fluid dynamics capacity is schemed out.

采用曲面造型得到计算区域，通过对离心泵叶轮内部流场的数值计算与分析，为离心泵优化设计提供准确的修改意见，设计出水力性能优异的叶轮。

By using Fourier analysis, we analytically obtain the resonance condition of Rabi oscillations and the Rabi frequency in the weak-coupling limit; and those results are verified by the numerical evolution results of electrons.

借助Fourier分析，我们得到了弱带间耦合情况下的Rabi振荡共振条件以及Rabi频率的近似解析解，这些结果均由数值演化给出验证。

First, based on the analysis of the grid Reynold number, the necessity for adopting high order scheme is emphasized when there is the complex flows with strong separation and high parameters gradient regions. Then, according to the entropy increased condition, the third order ENN scheme is constructed. Meanwhile, a fast, effective, and simple implicit numerical method called hybrid flux splitting method is developed. After that, the one dimensional model problem with many extrema and Burgers equation are simulated. Through the comparisons with exact solutions, the accuracy and effectiveness of the ENN scheme are confirmed.

首先通过对网格雷诺数的分析，论证了在求解含分离及较大参数梯度的流动时，采用高阶格式的必要性，然后从熵增原理出发，提出了建立三阶ENN格式的准则，同时发展并建立了一种快速、有效的简单隐式算法"混合通量分裂法"，通过对一维模型问题及Burgers方程的数值试验，检验了三阶格式的计算精度。

Numerical simulation analysis is carried out of the temperature field distribution to the frozen area roadbed.

对冻土地区路基的温度场分布进行数值模拟分析，初步探讨了路基温度随时间和深度变化的关系。

Numerical algorithm and analysis of Romeo and Juliet Solutions to the maze compared to the classical algorithm.

数值算法与分析中的罗密欧与朱丽叶的迷宫问题解法，比较经典的算法。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新