查询词典 computer based

The QAM modulation based on single chip computer and A/D converter is finally presented.

最后分析了采用单片机和D/A变换器实现的QAM调制解调方法。

As an effective combination of computer network techniques and experiment teaching system, the network-based remote real-time experiment teaching system has broken through the restriction of time and location. Making full use of human resources and material resources, it is a new stage of remote experiment teaching system.

基于网络的远程实时实验教学系统是计算机网络技术与实验教学体系的有机融合，它使得传统的实验教育突破了时间和地域的限制，充分的利用了现有的也人力和物力资源，是远程教学技术发展的新的阶段。

In Chapter 2 the foundamental principle of GAs is introduced and the mathematic background of GAs is discussed. Then, a genetic algorithm based on non-Abel group theory and a parallel genetic algorithm based on supercube computer system are proposed.

遗传算法广泛地应用于函数优化和组合函数优化问题，然而如何改善其性能，提高收敛效率，仍然是当今遗传算法研究界的重要课题。

The generic data matrix and database of adult morphology of Tenthredinoidea were set up. The polarization of each morphologic character was concluded based on the evolutionary morphology, the inner group comparision and fossils analysis. The generic cladogram of Tenthredinoidea was calculated by PC586 computer using Hennig86 program. A new classification system for Tenthredinoidea was proposed based on the analysis of the cladogram. The tribal cladistic biogeography of the superfamily was analyzed using Diva program.

以成虫外部形态为主体建立和完善了叶蜂总科属级形态特征矩阵和数据库；采用进化形态学—内群比较—化石比较分析方法推断了各个特征的演化极性；应用Hennig86程序以427个叶蜂属为终端分析单元，在PC586计算机上运算，得出了叶蜂总科属间关系支序图，解析支序图，建立形式分类，提出了新的叶蜂总科分类系统。

Web-based learning evaluation based on Developmental Assessment Theory will absorb excellent evaluation theory, in virtual of advanced computer and network technology, integrate procedural evaluation and multi-evaluation, emphasize more evaluation subject, multiplicities of evaluation criterion and mode, evaluate the learner's ability, promote comprehensive development.

所以，构建基于发展性评价的网络学习评价系统以及相关的平台是支撑网络学习评价的基础，是构建网络学习系统迫切需要的。本文先对基于发展性评价的网络学习评价进行理论分析，然后对网络学习的发展性评价系统进行研究与设计，把此系统划分为电子测验模块、在线讨论模块、我的学档模块、园丁天地模块。

This paper is based upon XiShan Colliery Parent Company .The data of DongQu Mine pit ventilation resistance mensuration is combined. And system theory, graph theory, ventilation network technology and computer technology are utilized. According to the reality of coalmine, we think that graph and database is incorporate in mine ventilation system. So based on this, ventilation system standard graph is founded, the tool of ventilation graph to draw is made, the ventilation network calculation is realized, the outcome of the ventilation network calculation is seen on the screen, and opaquing and inquiring of the road parameters and so on. In addition to mine ventilation drawing-database visual management system is developed.

本文基于西山煤矿总公司东曲矿〖东曲矿矿井通风网络计算机管理系统〗科研项目，结合东曲矿矿井通风阻力测定，运用系统理论、图论、通风网络技术及计算机技术，针对煤矿实际，将矿井通风系统中图形和数据库贯穿为一体，创建了通风系统标准图库并编制了通风图形绘制工具，实现了风网解算和解算结果图形显示及巷道参数的修改、查询等功能，开发了矿井通风图形数据可视化管理系统。

The application of case-based method to computer teaching is just in early stage in our country. There are few application of case-based teaching method in VB course, let alone the construction of the VB case program library.

在我国把案例教学运用于计算机教学中尚处于起步阶段，而把案例教学运用于VB课程的教学中并不常见，结合案例教学法构建相应的VB案例程序库也就更少。

Based on studies about current development of Methods of separating meiofauna, a new method is advanced in this paper. A suit of device was designed to Separate meiofauna from benthic sediments sample automatically, accurately and efficiently, which based on the technology of Laser-induced Fluorescence Detection, and used other technologies, such as noctilucence, electronics, biophysics, computer, mechanism, and so on. The scheme of macrocosm, the design of light route, the hardware and software design of the photoelectricity detection system and machine control system, the method of signal processing are introduced, especially the hardware and software design and the method of signal processing.

论文分析了目前国内外所使用的小型底栖生物分离方法现状，并以此为基础，自主开发了一套基于激光诱导荧光技术，并且集荧光化学技术、电子物理技术、光电测量技术、计算机技术及机械技术为一体的小型底栖生物标本自动分离系统，实现了从沉积物样品中自动分离小型底栖生物标本，从而大幅度提高室内小型底栖生物分样的工作效率和精度的目的，并以此完成了大洋协会&十五&攻关项目：&小型底栖生物标本自动分离系统研制&。

To realize engineering quantity information extracting based on shop drawings, recognizing diversified functional components in shop drawings based on drawing understanding is essential, which is in fact a method of"engineering drawing computer understanding"or"The 3D Reconstruction"in general.

基于图形理解的工程量信息获取方法，实质是在对施工图进行图形理解的基础上，识别出建筑物的各种功能部件，广义上是建筑图样的计算机理解和三维重建方法研究。

Computers have so far been based on two-dimensional chips made from silicon, but there are developments already well advanced to make three-dimensional chips with vastly improved performances, and even to construct them out of biological molecules that can be miniaturised even more than metal-based computer chips.

目前，二维芯片主要用硅制造，现在已经开发了更先进，能量更大的三维芯片，甚至能够用生物分子制造比金属芯片体积更小芯片。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。