数字清江GIS平台设计及其实现

本文主要介绍开发数字清江GIS系统的方案 策略及其实现，系统采用Arcsde空间数据引擎和Oracle关系数据库统一管理空间数据和属性数据，运用Mapobjects和Visualc 实现流域空间信息查询及分析功能，达到了集成的空间数据管理和高效率的信息查询的目标。     

VC++和基于Lab Windows/CVI的DLL在测控技术中的应用

介绍了动态链接库(DLL)的运行机制,阐述了基于LabWindows/CVI的DLL的开发以及它和VC++程序的集成方法,对于两种程序之间的通讯,给出了一种基于内存映射的实现方法。文章最后给出了一个技术上具体实现的例子加以说明。     

视觉检测系统及其应用

视觉检测技术是建立在计算机视觉研究基础上的一门新兴检测技术，基于视觉传感器的检测系统具有抗干扰能力强。效率高，组成简单等优点，非常适合生产现场的在线，非接触检测及监控。本文介绍了该技术在烟草行业包装生产线上的应用方案。     

Finding Starting Points for Tracing Surface Intersections

1 Introduction Finding out proper starting points for all the intersection curves between two surfaces is a key process in numerical tracing methods for surface-surface intersection (SSI) problems. A number of methods [1] are introduced to calculate the starting points. Cugini et al. [2] introduced the concept of shrinking bounding boxes to calculate starting points. This method is simple and in some cases effective, but it may miss some intersection components. Muellenheim [3] presented an…     

Expansion of Plasma of Electrically Exploding Single Copper Wire Under 4.5kA～9.5kA/Wire

Abstract The experimental system for electrically exploding single metal wire has been de-signed and manufactured. Expansion of the dense plasma column formed from an electricallyexploding Cu wire of diameter 30 μm has been studied with a high-speed photographer to obtainthe time-dependent radius (R-t) curve. The experimental results demonstrate that the mean ex-pansion rate of the dense plasma column is 1.94 μm/ns, 2.6 μm/ns and 3.75 μm/ns according tothe peak pulse current 4.5 kA, 7 kA and 9.5 kA respectively. The results can be beneficial to givinga profound understanding of the early stage of wire-array Z-pinch physics and to improvement ontheir design.     

Plasma Induced Degradation of Benzidine in Aqueous Solution

The degradation of benzidine in aqueous solution by the low temperature plasma was examined. The results showed that the concentration of medium and the value of pH have an appreciable effect on the degradation of benzidine. What is more important is that iron ions acting as a catalyst play an important role in this reaction. For exploring the degradation mechanism of benzidine, some of the intermediate products were recorded by HPLC (high performance liquid chromatography).     

Flow Simulation and Optimization of Plasma Reactors for Coal Gasification

This paper reports a 3-d numerical simulation system to analyze the complicated flow in plasma reactors for coal gasification, which involve complex chemical reaction, two-phase flow and plasma effect. On the basis of analytic results, the distribution of the density, tempera-ture and components‘ concentration are obtained and a different plasma reactor configuration is proposed to optimize the flow parameters. The numerical simulation results show an improved conversion ratio of the coal gasification. Different kinds of chemical reaction models are used to simulate the complex flow inside the reactor. It can be concluded that the numerical simulation system can be very useful for the design and optimization of the plasma reactor.     

受限语言子集的理论研究和探索

本文在综述受限语言研究成果的基础上,提出受限语言子集的一种形式化描述模型,并给出其相应的语言特性和数学特性,就受限汉语子集的确定方法问题进行了理论研究和探索。作者希望本文提出的表示模型和确定方法能够引起有关的讨论,并在充分认识受限语言研究的必要性和困难的基础上,将其引向全面深入的发展。     

语句拼音-汉字转换的智能处理机制分析

语句拼音- 汉字转换是中文信息处理研究的一个重要方面,是键盘汉字输入和语音输入的核心技术,其主要特征是对动态输入的拼音串进行词法分析,给出所有可能的汉语句子,然后对这些汉语句子根据上下文环境进行句法分析和语义分析,动态调整句子中的字词,输出最佳结果。近年来,语句拼音- 汉字转换系统大量应用了人工智能技术和机器翻译的理论,以期提高系统转换的准确率和增强系统的智能处理功能。本文分析了语句拼音- 汉字转换系统所采用的核心技术,即知识支持、自动分词和动态调整等,讨论了语句拼音- 汉字转换的处理方法和过程,知识库的组成结构,用于拼音串自动分词的算法和实现,音字转换中动态调整的概率模型等,本文还分析了现有语句拼音- 汉字转换系统在拼音串自动分词和音字转换的动态调整中发生错误的原因,并提出了改进方法。     

三唑并嘧啶磺酰胺类除草剂的QSAR研究（II）

三唑并嘧啶类除草剂是作用于乙酰乳酸合成酶的新一类超高效除草剂，本文采用ＣＡＳＡＣ软件中的逐步线性回归方法，在二维水平上通过讨论三唑并嘧啶类化合物对油菜ｒａｐｅ（Ｇｏｓｓｙｐｉｕｍｓｐｐ．）欧龙牙草ｃｏｃｋｌｅｂｕｒ（Ｘａｎｔｈｉｕｍ，ｓｐｐ．）曼陀罗ｊｉｍｓｏｎｗｅｅｄ（Ｄａｔｕｒａ，ｓｔｒａｍｏｎｉｕｍ），牵牛花ａｎｎｕａｌｍｏｒｎｉｎｇｇｌｏｒｙ（ｌｐｏｍｏｅａｓｐｐ。）苋菜ｐｉｇｗｅｅｄ（Ａ