数值分析

This paper presents a study on modeling the stability of dump slope using the techniques of limit equilibrium, numerical simulation, and numerical differentiation.

针对废渣场的废渣材料软硬比例发生了不利于堆放边坡稳定的特殊情况，应用极限平衡法、数值模拟及数值微分对渣场稳定进行分析计算。

Theory analysis and numerical solution of the Maxwell s equations is a hot topic in both numerical mathematics and engineering communities.

它的理论分析和数值方法研究一直是数值和工程计算中的热点问题。

On the other hand, by using recent numerical methods, a series of effective numerical methods to analyze magneto-electro-elastic solid problems can be also developed, which is applied to analyze the piezoelectric multi-layered composite plates etc.

另一方面，利用已有的优秀的数值方法，建立一系列有效的电磁弹性固体以及压电层合板等问题分析的数值方法。

Introduction to the fundamental idea, error analysis, stability analysis of numerical

说明数值方法的理论基础，并进行数值解的稳定性与误差分析。

Introduction to the fundamental idea, error analysis, stability analysis of numerical methods

课程目的：说明数值方法的理论基础，并进行数值解的稳定性与误差分析。

Theoretical analysis and numerical results show that the new reconstruction algorithm can reduce the computational complexity and greatly improve the numerical stability.

理论分析和数值试验都表明，这种新的重建算法较常用的Newton-Raphson类算法，不仅数值稳定性有较大的提高，而且计算量有所减少。

A calculation model is established for the corrugation and annular flow field of a stratification injection allocator by using 3D Max and it is put into VR environment of PHOENICS and based on the actual geometric size of the allocator,κ-ε turbulent calculating model is used for numerical calculation of water medium flow field by using orthogonal and detail grid under coordinate system.

用3D Max建立了分层配注器波纹环空流场的计算模型，调入PHOENICS的VR编辑环境中，根据实际配注器的几何尺寸，在柱坐标系下，采用局部加密正交网格，应用k-ε湍流计算模型对水介质流场进行了数值计算，给出流场的速度分布与压力分布曲线，并对比分析了3种形状的波纹环空流场的数值计算结果。

On the basis of the results of survey and study about researches of pulse well test at home and abroad, the method of total pressure history match and numeric solution is selected as an advanced research, the goal is to investigate a method of pulse well test in theory and analysis under the conditions of no knowledging about the changing tendency of formation pressure and having outer boundary.

根据对国内外关于脉冲试井研究情况的调研结果，本文选择全压力史拟合方法和数值求解方法作为一个探索性研究课题，将有限元法应用于压力的数值求解过程，目的是探索一种在地层压力变化趋势不清楚和有外边界的条件下的脉冲试井理论和分析方法，从而为油田提供结果更准确的、信息更丰富的开发调整依据资料。

Afterwards, the solving problem of Parabolic Type is transformed into a initial value problem of ordinary differential equation with respect to through Fourier transform again.

在数值实验中，对六个美式看跌期权价格进行了计算，通过分析比较，结果表明：快速傅里叶变换法加欧拉法是一种快速的高精度的数值计算方法。

The FEM simulation software of DEFORM was used to simulate the temperature distribution of plug for Diese piercer during cross rolling.

应用DEFORM三维有限元数值模拟软件对狄舍尔穿孔机热轧穿孔过程中的顶头进行了温度场数值模拟，通过模拟和实测分析了顶头开裂、粘钢、塌鼻等失效原因。

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。