给...打下基础

Taking beam with rectangular section as an example, the corresponding analytical solution of beam subjected to cosine distribution pressure is given through constructing the stress function satisfying all boundary conditions and biharmonic equation , which is a base of beam subjected to arbitrary distribution pressure.

以矩形截面简支梁为例，通过构造一个满足所有边界条件和双调和方程的应力函数，给出了梁受余弦分布力作用情况下相应的解析解，这为求解梁受任意分布压力作用下解的问题打下了基础

Recently, we defined the uniruledness of symplectic manifolds and proved that symplectic uniruledness is invariant under symplectic birational

最近，我们给出了Uniruled辛流形的定义并证明了其在辛双有理变换下的不变性，为今后进一步从事辛双有理几何的研究打下了基础。

Chapter 4 establishes the theory of convex fuzzy mappings: The concepts, such as Jensen's inequality, positively homogeneous, infimal convolution, right scalar multiplication and convex hull are introduced. The corresponding theorems are demonstrated by using the parametric representations of fuzzy numbers. In anti-fuzzy number space, the conjugate mapping of convex fuzzy mapping is concerned, and convexities of conjugate set and conjugate mapping of convex fuzzy mapping are proved. The notions of subgradient, subdifferential, differential with respect to convex fuzzy mappings are investigated, which provides the basis of the theory of fuzzy extremum problems.

在第4章中，建立了有关凸模糊映射的理论：建立了关于凸模糊映射的Jensen不等式、模糊正齐次映射、凸模糊映射的下卷积、右数乘和凸包等概念，利用模糊数的参数化表示，给出了相应的定理；在反模糊数空间，对凸模糊映射的共轭也作了探讨，证明了凸模糊映射的共轭集合和共轭映射都是凸的；最后对凸模糊映射的次梯度、次微分和微分等概念进行了研究，为模糊极值理论打下了基础。

First of all the construction created a strategic base to earn," out CPC"s revolutionary war, stood the CPC "s protracted fight against Japanese aggression, dius laid a strong foundation for the CPC"s \ictories in the war against Japanese invasion and Guomindang"s reactionary rule. Secondly, die construction, once and for all, began to break die old order dial hindered this country"s development and created a new order that suited Chinas modernization.

首先，这种建设为中国共产党创造了一个进行民族革命战争的战略基地，为中共坚持持久抗战提供了依托之所，为抗日战争和随后解放战争的胜利打下了坚实基础；其次，这种建设开始从根本上打破阻碍中国社会发展的旧秩序，又逐渐营造了一个适应中国走向现代化的新秩序；再次，这种建设在实践中积累了丰富的历史经验和教训，给我们当代的村民民主自治提供了宝贵的借鉴。

In order to build our company into a large-scale filter production base at high technical level, we shall adhere to: the principle of operation of "abiding by contract and quality guarantee"; and the quality consciousness of "no quality, no tomorrow"; We shall set up brand name concept, strengthen manageme

天朗公司决心发扬"不断进取，锐意创新"的精神，为把本公司建设成具有规模型和高科技水平的滤清器生产基地而奋斗，我们将坚定不移地遵守："守约、保质"的经营原则；"没有品质就没有明天"的质量意识；坚定树立品牌意识，内练管理功，外练售后功，为进一步实现企业"给爱我者更多的爱"的营销理念，打下了坚定的基础；以过硬的质量、完善的服务，不断创新，不断的创新，携手并进，共同创造更加辉煌的明天！

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

The friendly interface of the software makes it maturate for application.

该软件所实现的友好的用户界面给软件的推广使用打下了良好的基础。

These efforts help to disassemble the complex task of the ship structure knowledge system into some relatively simple sub-tasks, and to found the parameter representation method for concerned knowledge in the knowledge base of structure design.

船体结构布置和计算纷繁复杂，本文通过对大中型集装箱船的结构模块化分析和计算，给出了大中型集装箱船系列化的主尺度变换原则、结构模块的划分方法以及结构标准件和可变件划分计算方法，为集装箱船中剖面结构设计知识系统的任务分解以及结构设计知识库中的有关知识的参数化标准模块表示打下了基础。

Based on analyzing product design and its process,using a theory and method of aggregating and mapping,models of product design,process of product design ,process of conceptual design of product were constructed,a frame of network arithmetic of a process of conceptual design of product was presented,its flow of decomposition and integration was particularly defined,a good base for modeling and ruling of process of product design was foun...

在分析产品设计及其过程的基础上，利用集合与映射的理论与方法，依此建立了产品设计、产品设计过程、产品概念设计过程的模型，给出了产品概念设计过程的网络算法框图，并且详细定义了后者的分解与综合的流程，为产品设计过程的模型化、规律化打下了良好的基础，同时也为产品全生命周期设计过程计算机软件支持工具的开发作出了有益的探索。

The paper reviews the development in the analytical theory of mechanical behavior of composites, pointing out the problems existed, presenting creatively the concept of yarn state, solving the descriptive problem of perform structure of any woven composites and laying the foundation for predetermining the elastic behavior of 3-d woven composites with computer. On the basis of yarn state, the relative cross section deformation theory is introduced, the yarn cross section deformation is studied, and the experiential formula is described in the paper on the basis of experiment. The crimping state of yarn is studied, the classical "straight warp view"is modified, and the crimp height value of crimped yarn is studied. At the same time, with shrinkage rate sine method, the paper proposes the idea which imitate the shape of crimped yarn. With the third power template curve, the paper describes the microgeometry structure of fabric, finding a brief and precise approach for the calculation of mechanical behavior of composites.

本文回顾了复合材料力学性能分析理论的发展，指出了存在的问题，创造性地提出了纱态概念，解决了任意结构机织复合材料预制件结构表征问题，进而为用计算机预报三维机织复合材料的弹性性能打下了基础；基于纱态概念，提出了相对截面变形理论，研究了纱线截面变形情况，在实验的基础上给出了纱线截变经验公式；研究了纱线屈曲状态，修正了传统的&地经纱直线论&，提出了以纱线缩率研究屈曲峰谷值的思想，同时以三次样条曲线拟合了纱线的卷曲形状，较好地描述了织物的细观几何结构，为复合材料力学性能的计算找到了一条既比较简便又比较精确的途径。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！