技术

On basis of analyzing the present research situation and existing question of Web knowledge acquisition, this dissertation mainly studies the essential technologies of concept semantic generation, the common text classification methods, user profile construction and approximate query technique based on concept. The main research works are shown as follows.

本文在分析网络知识获取相关技术的研究现状和存在问题的基础上，研究了概念语义生成技术、文本分类方法、典型用户会话模板生成方法以及基于概念的近似查询技术，主要取得以下研究成果：(1)借助NMF算法的分解结果具有实现上的简便性以及分解形式和分解结果可解释性的优点，提出一种基于NMF的概念语义生成方法。

The development of weld penetration control technology in Gas Tungsten Arc Welding is analyzed in this paper.

分析了熔透控制技术的发展现状，提出了利用熔池谐振技术进行熔透控制的方法，并对其原理、传感技术、实时控制系统和控制结果进行了讨论。

In this part, carrier interferometry technique is combined with MIMO-OFDM architechure, resulting in the so called MIMO-CI/OFDM system. It is shown that the novel system can achieve dramatic performance gains by taking advantage of large frequency diversity inherent in the CI/OFDM technique. Further more, the proposed MIMO-CI/OFDM system has a more stable envelope and, ultimately, an average PAPR far smaller than that of MIMO-OFDM.

将载波干涉技术与多天线OFDM技术相结合实现了一种MIMO-CI／OFDM结构，由于CI／OFDM具有大的频率分集作用，该结构因而获得显著的性能增益；而且由于采用CI技术使得发射信号的包络更加平稳，与原有的MIMO-OFDM系统相比具有较低的PAPR。

In this article,author discussed the infection of modern scientific technology on the innovation and modernization of vocational education from the characteristic of the 21st human new architectonic system,and then analaysized the effection of the education technology development on the vocational education courses system,in the end,he also proposed some new suggestions on the innovation of vocational education in the conditon of the modern education technology.

从21世纪人类新知识体系的发展特点出发，探讨了当代科学技术对教育技术现代化和职业教育课程改革的影响，教育技术的发展在当前职业教育课程体系改革中的作用，以及现代教育技术环境下职业教育课程改革的若干建议。

Direct torque control is the most excellent control technology for induction-motor at moment. Digital signal processor with high speed arithmetic and logic operation is the base for its digital realization.

直接转矩控制技术是目前最为优良的交流电机控制技术，数字信号处理器的高速运算和实时处理功能为直接转矩控制技术的数字化提供了基础。

For instance, in the direct 3-D CT image reconstruction, the calculating scale, the calculating complexity and freedom of parameters go far beyond the processing capability of array processor used in 2-D medical CT.

七十年代以来，CT技术已经有了长足的发展，医用CT的成功和普及以及工业CT技术的进展使无损检测手段发生了划时代的变化，开创了现代辐射成象技术的新阶段。

The present study has made an introduction to the thermal plasma method of destroying the arsenical chemical agents so as to provide a selective technology in this way.

针对二战期间日本侵略军在我国遗弃的大量化学武器的危害性，进行了热等离子体技术销毁含砷毒剂的实验，旨在为评价日本遗弃化武的销毁技术选择提供技术支持。

Tins article will tell us the functions of CAI in English classroom teaching:1. the functions in English classroom teaching1. 1 enrich the teaching contents and change the monotonous design of traditional teaching1. 2 arouse the students interest and stimulate the studyintention1.3 make initiative study change into passive study1.4 lighten the students schoolwork2. the functions in modern education2. 1 remedy the differences between different schoolsand areas 2. 2 improve the process of teaching management2.3 enrich the reading matter of the outside class2.4 develop the long-distance education by using the multimedia and internet technologyBecause there are so many advantages about multimedia. many schools construct campus net and multimedia classrooms. Then designing and making CAI software became an important problem for these schools, so these article can tell us how to design and make it. In order to make CAI software better, the articled also tell you how to pay attention to something .That is the content of my article , I hope I ran consult it with you .Thank you.

充分运用现代教学技术武装我们的教学，对原有的教学生产方式来一场革命，这是教育实践的呼唤，也是时代的呼唤，本论文从多媒体在英语课堂教学中的作用出发，来说明运用多媒体进行计算机辅助教学的作用： 1 在英语课堂教学中的作用 1.1 丰富教学内容改变传统教学的单调模式 1.2 激发学习兴趣促进学习动机 1.3 变被动学习为主动学习有效体现教学的个体化和因材施教 1.4 为教师提供形象的表达工具有效地减轻学生的课业负担 2 现代教育中的作用 2.1 弥补不同学校、地区之问教学质量的差异 2.2 改善教学管理过程改进教学效果 2.3 丰富的课外读物 2.4 多媒体技术与网络技术的结合可有效地开展远距离教育正因为多媒体具有这么多的优点，所以许多学校多投资兴建了校园网和多媒体教室，如何设计和制作高质量的多媒体课件是许多学校迫切需要解决的问题，所以本文接下来谈论的是如何设计和制作多媒体课件以及在设计和制作过程中如何应用心理学上的注意规律等，仅供各位同行参考。

What recent technology progress has grown as economy is main pull use an ingredient, and technical innovation is in lead a technology the move since ascensive respect most the action of core.

近代技术进步已经作为经济增长的主要拉动因素，而技术创新在引领技术进步方面起着最核心的作用。

The main content include the basic knowledge of the microcontroller, basic constitute, the system structure, the work mode, assemble language program designs method and technique, memory constitute, expanding method with I/ O etc.

主要学习单片机应用系统的硬、软件开发方法，输入／输出接口及存储器的扩展技术，应用程序设计技术和微型计算机应用系统的抗干扰技术。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。