数学分析

Mathematical model and transfer function of electro-hydraulic control system of Friction Welding Machine are established.

建立了线性摩擦焊机电液伺服振动系统的数学模型和传递函数，采用Matlab/Simulink软件对其进行了动态仿真分析，特别是对谐振振动系统原理及效果进行了深入分析，以初步验证线性摩擦焊机电液伺服振动系统性能。

From this model, the effects of temperature、strain rate as well as the shape、size and distribution of oxide particles on hydrogen induced plastic damage in the steel were analyzed.

文中提出了&鱼眼&产生的物理—数学模型，用以分析&鱼眼&产生的过程及条件；并根据该模型分析了氢致塑性损失的温度、应变速率效应和氧化物夹杂粒子的形状、尺寸及分布对氢致塑性损失的影响。

Of the elements affecting the location of shopping center, the index system is determined by applying analytic hierarchy process method. the comprehensive evaluation system for it is established by means of fuzzy mathematics.

通过对影响购物中心选址因素的分析，运用层次分析方法设计了选址评价的指标体系，然后确定每层因素权系数，再确定低层因素对目标层的组合权重系数，应用数学的方法建立购物中心选址的综合评价系统。

Amathematic model of a servo system with a lead screw drive was used to analyze the dynamic characteristics of the servo system in the transfer process.

文中首先描述算法的求解过程，并对其进行了误差分析，然后建立机床伺服系统的数学模型，通过分析轨迹转接过程中伺服系统的动态响应特性，证明了控制算法的有效性。

To compare the performance with PN, the trajectory simulation is carried out, and the results show that the new guidance law provides significant performance improvements over the commonly used classical proportional navigation law, the load distribution among the trajectory is reasonable and favorable for the hand-over between the mid-course phase and the terminal phase.

在以上内容的基础上，建立了拦截弹末制导有关的六自由度数学模型和仿真模型，对不同初始条件下拦截飞机和战术弹道导弹进行了数字仿真，分析了拦截高速弹头时弹道的新特点，并采用蒙特卡洛法分析了不同误差因素作用下的制导精度。

The mathematical expression between DOP and DGD is derived for arbitrary waveshape and Gaussian pulse. Then the relationship of DOP-DGD with different power splitting ratio, width of pulse, and amount of pluses is theoretically analyzed.

推导出了准单色光波情况下任意波形和高斯脉冲的偏振度的数学表达式，理论分析了高斯脉冲情况下分光比、脉冲宽度和连续脉冲个数分别对偏振度与差分群延时关系的影响，并用10 Gbit/s归零/不归零伪随机码序列进行了实验，实验证明了理论推导和理论分析的正确性。

This paper analysed the functions of the basic structure of perforated plate for catalyst extruding machine.

本文对催化剂挤条机孔板的基本结构进行功能分析，用回归分析的方法建立数学模型，采用该模型的孔板能够保证催化剂的尺寸精度、增加强度、提高表面光滑度，并经实践证明是有效的。

In order to solve the problem of poor precision and reliability of basis weight sensor used in papermaking process control system, the redundancy relations of sensors, and a new method to detect the sensor failures, and realize fault tolerant control for basis weight subsystem of papermaking process are suggested.

针对如何进行控制系统的高可靠性设计问题，在分析各种故障形式的基础上，建立了故障系统的数学模型，提出了能控意义上的功能冗余、系统的能控冗余度及某个部件对系统的能控重要度等概念，并对控制系统的可容错性进行了量化分析，从而为控制系统的高可靠性设计提供了理论依据。

In this thesis, on the basis of theoretical analysis, numerical simulation and test study, the working principle and working process of central tube explosive ejection device and combustion gas ejection device equipped with star-shaped frame are analysed, the mathematical model of the inner ballstics of ejection devices and dynamical ejection model of submunition are established.

本文在理论分析、数值模拟与试验研究三者相结合的基础上，分析了中心管式爆炸抛撒装置与星形框式燃气抛撒装置的作用原理和作用过程，建立了抛撒装置内弹道的数学物理模型以及子弹抛撒动力学模型。

The working properties of hollow rod pumping system developed on the basis of hydraulic feedback principle were analyzed.

针对液力反馈原理的新型空心杆采油工艺的特点，在理论分析的基础上，考虑液体运动、空心杆柱受力等因素的影响，完成了液力反馈型空心杆采油管柱力学分析，建立了空心杆采油的二维数学模型。

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。