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High precision multi induction motor control is one of the key issues in modern industry and motion control field.

高精确度多感应电机同步控制是现代制造业和传动系统最关键的问题之一。

The accordion is a young multi-musical part multiplication keyboard instrument, is one of instrumental music teaching important performance methods.

手风琴是一门年轻的多声部多元化的键盘乐器，是器乐教学的重要表现手段之一。

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。

For the first phase of the multi-184 million investment in the 220 kilovolt substation set up in Narita, optimize investment environment, improve.

多方争取首期投资1.84亿元的220千伏变电站在成田落户，投资环境不断优化、完善。

A multi-function kilowatt-hour meter based on single chip computer 89C52 is simple in structure and reliable in performance .

以 8 9C5 2单片机为核心构成的多功能智能型电度表，其结构简单，运行可靠。

Companies on their use of unique natural ore Mengshan Materials: maifanite, kimberlite ore, quartz, magnetite, calcite, garnet, feldspar, gypsum ore, manganese ore and iron ore and other mineral crystals of various materials, has introduced the series of natural mineral filters, mineralization and a filter media, from the dissolution of the body must be more than 50 kinds of trace elements, produced with a multi-layer filter, natural minerals, mineralization, magnetization, activation, softening of the new reverse osmosis membrane products, completely changed the original image straight drink machine, immediately after the listing of new products by the vast numbers of merchants and users, and has a special Product Award.

公司运用蒙山特有的天然矿石材料：麦饭石、金伯利岩矿石、石英石、磁铁矿、方解石、石榴石、钾长石、石膏矿、锰铁矿等多种矿石及各种矿物晶体原料，不断推出各系列天然矿物过滤器、矿化器及滤料，从中溶出50多种人体必须的微量元素，生产出具有多层过滤，天然矿物、矿化、磁化、活化、软化逆渗透膜的新产品，彻底改变了直饮机原始形象，新品上市后立刻受到广大客商及用户的好评，并多次获得特别产品奖。

In this research, multi-modal interactions are considered for an e-book design to blend the fun elements of interaction into the story. The sense of touching a book like the traditional way is retained and the particular multimedia interaction of e-books is extended to avoid the traditional one-way display mode. It is for enhancing children's visual sensation, aural sensation, tactile sensation, and kinesthesia.

因此本研究采用多模式互动型式加入电子书制作中，让此类互动趣味元素融入故事中，以其保留「纸本」那份碰触到书的真实感，并扩延「电子书」特有的多媒体互动，跳脱以往传统的单向展示模式，增强儿童之视觉、听觉、触觉、运动觉等感官讯息的能力。

And the chromosome movements in mitosis are orchestrated by dynamic interactions between spindle microtubules and the kinetochore,a multi-protein complex assembled onto centromeric DNA of the chromosome.

有丝分裂过程中染色体的运动和分离又是通过纺锤体微管和位于染色体着丝粒上的动点之间的协同作用来完成的。

Acquired Tianjin Construction Machinery Ltd. of natural gas transmission pipeline hydraulic equipment production line project of the country are supporting equipment; Cixi Burgmann Sealing Materials Company W-type high temperature and high pressure spiral wound gasket has been successfully used to HYDROCRACKER up; Dalian Hydraulic Parts Plant Factory and Shanxi Changzhi Hydraulic steering vane pump, are of medium and heavy motor vehicle steering system of the key components, the current annual output of both plants has reached more than 10 million units; Qingdao Kipper sealed the company's new portfolio of large-scale bi-directional sealing and anti-water oil seal are respectively 9 tons FAW Jiefang trucks and tractor trailers 1 matching seals; addition Tianjin Co., Ltd. special precision hydraulic hydrostatic transmission devices and many way valve, Huzhou Miguel pieces of the company's multi-function hydraulic slide-valve, Weihai, a combination of pneumatic components调压阀the air relief valve, Guizhou Feng Yang's hydraulic pump stations and hydraulic valves, such as shift , are well received by users.

天津市精研工程机械传动有限公司的天然气输送管道生产线液压设备是国家西气东输工程的配套设备；慈溪博格曼密封材料公司的高温高压W型缠绕垫片，现已成功地用于加氢裂化装置上；大连液压件厂和山西长治液压件厂的转向叶片泵，是中、重型汽车转向系统中的关键部件，目前两个厂的年产量已达10万台以上；青岛基珀密封公司的新型组合双向密封和大型防泥水油封是分别为一汽解放牌9吨车和一拖拖拉机配套的密封件；此外天津特精液压股份有限公司的静液压传动装置和多路阀、湖州生力液压件公司的多功能滑阀、威海气动元件公司的组合调压阀的空气减压阀、贵州枫阳液压公司的液压泵站和液压换挡阀等，都深受用户的好评。

Research of the optical system of the Multi-beam klystron.

多注速调管电子光学系统的研究。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。