数学基础

The algorithm is superior to other algorithms in residual errors and average epipolar distance and improves the accuracy of F-matrix.

一基础矩阵来表示，它是匹配点对之间对应关系的数学表示泡括了摄像机的所有内参和外参信息。因而

A dynamic voltage restorer based on ultracapacitor energy storage was described for voltage quality of distribution network.

在建立基于等效电路的超级电容器储能系统的数学模型基础上，设计了一种超级电容器储能的动态电压恢复器。

Based 188F gasoline engine heat load studies, the research unit based on Using AutoCAD software for the design cylinder sleeve, and then use the software PRO-E 3D modeling, and the calculated and experimental analysis to determine the reference cylinder heat transfer across borders, reuse finite element analysis software ANSYS right cylinder mathematical analysis, systematically on the finite element method in 188F cylinder gasoline engine design of the application, in-depth study of the thermal load on the performance and reliability, as relates to structural strength, stiffness, temperature and so on.

本文以188F汽油机热负荷为研究对象，在研究整机的基础上，利用AUTOCAD软件进行汽缸套的设计，然后用PRO-E软件进行三维建模，并通过计算解析和实验参考确定了气缸套各处的传热边界条件，再利用有限元分析软件ANSYS对气缸套进行数学分析，系统地探讨了有限元法在188F汽油机缸套设计中的应用，深入研究了其热负荷对性能和可靠性的影响，内容涉及到结构强度、刚度、温度场等方面。

On the base of the mathematic model of the PMSM, the reasons of the torque pulsation are analyzed. Then the validity of Iterative Learning Control in torque ripple minimization is expatiated. A whole simulation model is developed using SIMPOWER, and the effective of ILC in torque suppressing is proved. The scheme for hardware and software of integrated PMSM are demonstrated in the thesis.

本文在永磁同步电机数学模型的基础上，总结分析了永磁同步电机转矩脉动产生的原因，引入迭代学习控制抑制转矩脉动，利用SIMPOWER工具箱建立了永磁同步电机控制系统的仿真模型，对PMSM控制系统进行了仿真，仿真结果证明迭代学习控制能有效地抑制转矩脉动。

A mathematical model of shimmy system has been established on the basis of road test and measured design parameters.

在道路试验和结构参数测定试验的基础上建立了摆振系统的数学模型。

In this paper min-max vehicle routing problem is described and its model is built.

在对最小－最大车辆路径问题进行描述的基础上，建立了该问题的基本数学模型。

Such studies have suggested that the rudiments of mathematics are mastered gradually, and with effort.

这类研究发现，数学的基础部分要通过努力才能逐渐掌握。

Everyone learns the rudiments of arithmetic in elementary school.

在小学人人都学习基础的数学知识。

Introduced the mathematics theories foundation of the symplectic schemes, include the commonly established methods for construction symplectic schemes, which are symplectic Runge- Kutta method, symplectic propagation techniques and generating function method. A minimization of the truncation error-function and optimal Courant-Friedrichs-Levy number schemes are well established using sympletic propagation techniques.

介绍了辛算法的数学理论基础，包括辛算法常见的构造方法：辛Runge-Kutta法，辛传播子技术及生成函数法，利用辛传播子技术结合误差最小化及稳定性Courant-Fredrichs-Lewy条件数最大化的两种优化方案，构造了新的传播子系数；(2)。

Some revision of the compressor characteristics and the turbine sections has been made to accommodate the increased pressure ratio, the increased airflow and the moisture and heat addition in the saturator. Based on the HAT gas turbine, the part load performance of HAT cycle has been gained.

本文推导了HAT循环燃气轮机稳态性能数学模型，并分别研究了各换热器的变工况性能，在此基础上，本文对HAT循环燃气轮机的变工况性能进行了研究，得出HAT循环具有变工况性能好的结论。

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。