Four - phase transmission system has the least possible even phases . it has the advantages and overcomes the disadvantages of multi - phase power system . although the four - phase power transmission method is new , the technologies are roughly similar to those of the exiting three - phase transmission system and technically there are no difficulties to apply it , and therefore the four - phase power system can be developed and applied by seizing the opportunity of the fast booming power industry in the 21 century 四相输电系统具有最小可能的偶数相,它既具有多相输电的优点,又可以克服6相及以上多相输电所遇到的困难,虽然输电方式新颖,但其所采用的技术却与现有的三相输电系统基本一致,从技术上看,并不存在太大的困难, 21世纪输电系统的发展,为新型四相输电系统的应用提供了前所未有的契机。
In chapter 2 , the author briefly introduces the business characteristic of apmp industry , and does some analysis to the professional b2b e - business platform ' s frame . and some important point and thought has been discussed at setting up the manufacturing industry b2b e - business platform . and finally the technique and programming method to realize the platform has been introduced 在第二章中，简单介绍了汽摩配行业的商务特征，并按照行业性b2b电子商务平台的框架，对汽摩配行业商务平台的功能做了分析，阐述了在构建行业b2b电子商务平台时的原理和若干要点，最后介绍了拟实现该平台所采用的技术和编程方法。
From the actual requirement of system design , based on expert system " s concept , using com technology , we build one of the high efficient , flexible , loose coupling and high integration high - strength concrete expert system , and do some research on the core technologies in this paper 本文将若干技术和编程理念同专家系统的开发相结合，从系统设计的实际要求出发，采用com组件技术，构建一个高效、灵活、松散耦合和高度集成的高强混凝土专家系统，并对课题中所采用的技术做一些研究。
In chapter 4 we discuss the design of the high speed and high performance vlsi and its imp1ementation , firstly we ana1yze and compare the features and ru1es of al1 kinds of fft algorithm , adopt complex radix 4 butterfly calcu1ation as basic alu , then discuss all kinds of process architectures , the design thoughts , rule , method , technique way , the characteristics of the design are r4 dit algorithm , pingpong ram design method and pipeline structure between stages . we also analyze the limited word length effect and the method to avoid overflow of the fixed points fft process , bring out the expandable platform mode 第四章主要讨论了高速高性能的快速傅立叶变换处理器的设计和实现，首先分析和比较了各种快速傅立叶变换算法的特性和规律，提出基4蝶算的算法具有最好的性价比，讨论了顺序、级联、并行和阵列的处理结构，阐述了设计高速高性能快速傅立叶变换处理器时的设计原则、设计思路、所采用的技术路线，验证并测试fft处理器，分析了定点fft处理过程由于有限字长效应所产生的量化误差的范围及防溢出控制办法，提出了可扩展平台模式。
Different thinks about farmland grading will directly lead to different processing courses and methods . by doing many works of data processing on farmland grading , the author concludes two processing courses and methods . by a brief discussing on them , the author finds the defaults of the first method , which evaluates farmland grades based on different land rents theory , and separate them in quantity compulsively 农用地定级研究的思路的选择直接影响农用地定级所采用的技术路线和方法，在对农用地定级资料的整理的过程中总结了两类完全不同的农用地定级路线和方法，为了论文的全面性和有重点，作者将两类定级路线和方法在不同的出发点上进行简要论述。
This article is mostly sets forth deep influence of developing network teaching , the electronics teaching platform ' s general assume , concretely realizing blue print , the system adoptive technology , along with function introduce and implement method of on - line test and answer modules 本文着重论述了发展网络教学的深远影响，以及电子类教学平台系统的总体设想、系统的具体实现方案，实现该系统所采用的技术的介绍，以及在线测试模块、网上答疑模块的功能介绍和具体实现方法。
The detail of solution was expounded sequentially . we used the methodology of software engineering and object - oriented technique to create the model of the system , converted it into engineering code framework by a correlative tool , then enriched framework to accomplish the software and made a simple test 然后详细论述了开发所采用的技术路线，即采用软件工程的方法，首先对用户的需求进行细致地分析，并以面向对象技术为整个系统建立软件模型，再通过相关的插件将其转化为工程代码框架，最后具体实现整个软件，并对系统作简单的测试。
Future mobile communication will be wide - band multimedia communication . the adoptive technologies include wideband cdma , software radio , intelligent antennas , ofdm ( orthogonal frequency division multiplexing ) and digital processing device . ofdm and software radio are both the charming technology for future mobile communication 移动通信的发展趋势是宽带多媒体通信，所采用的技术包括宽带cdma 、软件无线电( softwareradio ) 、智能天线( intelligentantennas ) 、正交频分复用( ofdm )和数字处理设备。
After analyzing the character of risk , i introduce data mining method into risk management , to solve the contradiction between great capacity of data and lack of information , the methods include mathematics statistics and artificial neural network ( ann ) . then , i study on the methods of risk management in risk identification , risk evaluation and risk disposal , what is advanced , fault tree analysis method based on fuzzy probability , stochastic simulation method and the topsis method based on interval number all consider the characteristic of risk . finally , i discussed the application of information system ( mis ) in project risk management , and developed a risk management information system 论文在深入分析了风险特征之后，将数据挖掘技术引入风险管理，用以解决海量数据与贫乏信息之间的矛盾，所采用的技术有数理统计和人工神经网络( ann )两种方法；接着，论文对风险识别、风险评价、风险处理中的风险管理方法进行了研究，所提出的基于模糊概率的故障树技术、随机模拟技术和基于区间数的topsis方法都体现了风险管理的特点；最后，论文对信息系统( mis )在工程项目风险管理中的应用进行了探讨，开发出一个风险管理信息系统。
By the examp1e of implementat iofl of the human resources management information system in jiangxi hoflgdu aviation industry ( group ) corporation - - hdhrmis , it also i11ustrated the adodted technical program , deve1opment method , des ign princ iple , data di ct 1onary afld flow chart , etc . and researched and ana1yzed the phenomena such as the human resources f1ow by the app1 icat ion of mathematica1 means 1 ike regress1on ana1ysis afld 1 iflear p1anfling 并以实施江西洪都航空工业集团公司人力资源管理信息系统? ? ldhkmis为例，说明了所采用的技术方案、开发方法、设计原则以及数据字典及流程图等内容，应用了回归分析、线性规划等数学手段研究分析了人力资源流动等现象。
