Matching of graphical symbols in line-drawing images using angular signature information

In this paper, a method for matching complex objects in line-drawings is presented. Our approach is based on the notion of 2003_Article_105_TeX2GIFEqu1.gif" alt="$\mathcal{F}$" align="middle" border="0"> -signatures, which are a special kind of histogram of forces [17,19,28]. Such histograms have low time complexity and describe signatures that are invariant to fundamental geometrical transformations such as scaling, translation, symmetry, and rotation. This article presents a new application of this notion in the field of symbol identification and recognition. To improve the efficiency of matching, we propose using an approximation of the 2003_Article_105_TeX2GIFEqu2.gif" alt="$\mathcal{F}$" align="middle" border="0"> -signature from Fourier series and the associated matching.Received: 7 October 2002, Accepted: 1 December 2002, Published online: 4 July 2003     

科技期刊插图制作平台构建

本文以Visio2003为基础，构建了一个高效的科技期刊插图制作平台。为了提高插图制作和图文混排的效率，设计了一个专门用于期刊编辑的Visio模板，并开发了一个用于标记图象（TIF）尺寸等参数提取的软件，大幅度提高了期刊插图的质量和插图编辑、排版的效率。     

基于VB．NET网络中心前台业务办理系统设计与实现

通过对网络中心业务办理过程调查发现，我校网络中心前台业务存在着业务办理手续复杂、用户数据分散等缺点。本文给出了用于提高前台业务办理工作效率和统一数据管理系统的具体设计，包括系统结构设计、数据库设计等，以及关键技术的分析和应用。系统采用Visual Basic．NET作为前端开发工具和ACCESS2003作为后台数据库管理系统来进行实现，系统的应用提高了前台业务办理的效率，实现了数据的统一性和安全性，统计和分析数据的效率大大的提高了。     

基于P89C669的汽车驾驶状态纪录仪系统设计

介绍了一种基于Philips公司的最新的增强型51内核单片机P89C669作为核心控制器的汽车状态记录仪系统的设计和实现方法。对微控制器P89C669作出了简要的性能分析,又参照了针对汽车行驶记录仪的国家标准GB/T19056-2003,从系统总体设计、各子模块的设计等各个角度对汽车状态记录仪系统的设计方法作了较为全面的介绍。这种设计方法能够适应其他车辆状态记录仪的设计。     

基于VB产品入库和查询系统的设计与实现

介绍了采用Visual Basic6．0和Access2003数据库开发了产品入库和查询管理系统，阐述了该系统的设计思路、使用方法和安全策略，并探讨了其实现方式。     

基于IPv6的Web服务器的构建

本文首先简要介绍了IPv6及其地址的特点,然后描述了在Windows 2003环境下如何安装IPv6协议和配置IPv6地址,最后给出了利用Apache构建基于IPv6的Web服务器的实现过程。     

用C#.NET设计与实现三种数据库接口的统一模式

目前,在许多工程开发的过程中,都要和数据库相关联。例如:Oracle 9i,SQL Server 2000和Access 2003等。虽然每种数据库与Visual Studio.NET 2003中的C#连接方式多种多样,但也有很多相似之处,可以将相似的地方用统一方法写成实用的接口。这样可以很好地对C#Windows Forms程序和ASP.NET程序进行架构的组织,配合微软最近推出的ASP.NET 2.0版本的架构。可以将数据实体层(即数据库层)、业务逻辑层、界面表示层等进行分类。针对这3种数据库与C#.NET接口的相似性来写一种具有统一模式的接口。     

一种新型施工设备结构的稳定性计算研究

作者首次提出研制一种用于一般建筑工程及高层建筑工程的施工、建筑外装修、已有高层建筑的清洁和维修的施工设备,该设备具有自动化程度高、操作灵活、使用方便等诸多优点,其主要的结构包括附着支架、操作台、液压爬升系统。采用ANSYS非线性屈曲分析及工程实用算法对附着支架稳定性做了计算研究,结果表明该结构设计合理,满足工程使用要求,计算结果可以作为工程实际应用的依据。     

Burton Brothers of New Zealand

Abstract

The New Zealand firm of Burton Brothers was engaged in a wide spectrum of enterprise, icluding portrait, topographic and commercial photography. It came into being withing 20 years of the founding of the Otago Settlement. The firm soon became widely known for its ethnoghraphic photographs of the South Pacific, and later for its output of photographic postcards under the name of Muir & Moodie. Thomas M. B. Muir, who joined the firm early on, was related both to James Weaver Allen, a noteworthy pioneer photographer in the colony, and to Fred Muir who carried his camera to the unexplored interior of the South Island of New Zealand and brougllt back views of the hitherto unknown lakes, waterfalls and natural wonders to fascinated townspeople. Not surprisuingly, therefore, Burton Brothers and Muir & Moodie are household names in New Zealand, and are also well known to librarians and ethnographers throughout the world.     

Modeling strategies for unsteady turbulent flows in the lower plenum of the VHTR

Validation simulations are presented for turbulent flow in a staggered tube bank, geometry similar to the lower plenum of a gas-cooled high temperature reactor. Steady 2D RANS results are compared to unsteady 2D RANS results and experiment. The unsteady calculations account for the fact that nonturbulent fluctuations (due to vortex-shedding) are present in the flow. The unsteady computations are shown to predict the mean variables and the total shear stress quite well. Previous workers’ results indicate that 3D simulations are needed to obtain reasonable agreement; present results indicate 2D is sufficient. Best practices are based on requirements for the ASME Journal of Fluids Engineering.