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数值方法

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Based on the wave equations of electromagnetic field, a new time-domain numerical method-direct difference solution of vector wave equation is researched. Calculating formulas of electric field and magnetic field are also given.

对电磁场波动方程进行了分析,研究了一种基于电场波动方程的时域数值方法―矢量波动方程的直接差分解法,给出了电场和磁场的计算公式。

The sparse matrix canonical grid method is a numerical method that was developed recently.

稀疏矩阵规则网格法是近年来才被提出的一种数值方法

It is simulated numerically the transmission of beams phase modulated and spectrally dispersed by the unit for smoothing by spectral dispersion put in the laser driver for inertial confinement fusion.

数值方法研究了激光驱动器系统中使用光谱色散平滑单元后光束的衍射特性。

Effects of squealer tips on blade aerodynamic performances and tip heat transfer in a gas turbine were investigated.

应用数值方法研究了燃气透平动叶顶部凹槽对动叶气动性能及叶顶传热的影响。

By applying the H〓lder inequality, the Gronwall inequality, the Doob's inequality and the properties of the Ito stochastic integral to the integral form of the test equation, several important inequalities related to the analytical solution are proved, and the local order of the numerical solutions in mean square sense is obtained accordingly.

通过对试验方程的积分形式使用Holder不等式、Gronwall不等式、Doob不等式和Ito随机积分的性质,得出了试验方程解析解满足的几个重要不等式,进而得出了数值方法在均方意义下的局部误差阶。

In general, the key measure to pipeline recovering is grouting, which means grouting in subjacent bed to raising the pipeline.

以北京地铁黄庄站下穿热力管道抬升注浆工程为研究对象,利用三维有限差分数值方法分析了新建车站开挖引起超大管道的变形特征。

The developed numerical methods and the experimental material in this thesis could be used for reference in flow field research of ships and submergible bodies.

论文发展的数值方法和试验内容可为船舶及潜体的流场研究提供较为有益的参考作用。

Facing the situation of CFD's speedy development in the world and the requirement of practicable SCFD from the civil marine industry, some experimental investigations and practical SCFD numerical methods of the complicated viscous flow field around submergible bodies are carried in the thesis.

面临国际计算流体力学迅猛发展的态势和国内船舶界对船舶粘流场研究的实用化需求,作者立足于船舶,特别是水下潜体复杂粘流场的试验研究和实用化数值方法的发展。

In addition ,the property of the whole sugarcane is also tested for the sake of comparison with FEM result.

此外,本文对于甘蔗秸秆的整体压缩性能也有所论述,用以与数值方法所得结果进行比较。

Based on dual variable principle, a symplectic algorithm for solving optimal control problem of nonlinear dynamic system was proposed.

基于对偶变量变分原理提出了求解非线性动力学系统最优控制问题的一种保辛数值方法

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推荐网络例句

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。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。