运用EJB和XML实现灵活名册报表

针对现有报表生成系统可移植性差、灵活性不够以及不能全面支持分布式环境的问题,设计了分布式体系结构的报表系统,将报表定制、报表数据生成及绘制功能安排到不同类型的服务器以及浏览器上;在技术实现中,使用EJB(Enterprise Java Bean)开发应用程序,数据描述采用XML格式。系统实现了“灵活名册”、“灵活表格”的要求。     

基于XML的BOM生成系统

针对产品设计时零部件之间关系复杂、生成报表困难等问题,提出一种基于XML技术的物料清单(BOM)生成系统。用树状结构定义零部件之间的关系,采用XML文档存储各个零部件的信息和部件之间的结构关系。为保证产品数据在多个分散部门之间通过网络传输时的安全性,在建立产品数据库时对XML文档数据应用Rijndael算法进行加密,提高了系统安全。客户端对加密数据进行解密后,可以获得产品信息的完整XML描述,生成各种报表。该系统实际已应用于企业设计生产,取得了良好效果。     

基于XML技术的通用Web报表实现

本文针对Web报表结构和特点,通过自定义报表格式控制标签,运用XML技术进行动态编码生成XML报表文件,经客户端的.NET Framework对XML报表格式解析,实现了客户端精确打印报表的功能.     

B/S结构下复杂报表实现技术的研究

提出了B/S结构下基于XML的报表实现方案,解决了Web应用系统中报表样式不能灵活生成的问题。通过对实际项目中报表的结构进行分析,将报表的组成分为样式和数据两个部分,并用自定义的标记按照XML规范描述出这两部分信息,服务器端的解析器获得这两个XML文件后将报表信息解析出来并传给客户端进行显示。     

基于XML的电力生产报表生成系统设计

由于传统系统生成电力生产报表时间较长,文章提出基于XML的电力生产报表生成系统设计。采用B/S模式开发系统架构,由交互层、业务层、逻辑处理层以及数据层4个功能层次组成。在系统软件方面,利用指标、报表收集以及收集相关数据,并对其横向拉通;利用指标模型提取电力生产指标数据,并应用XML搭建生产报表模板,根据填充规则将指标数据填充到报表模板中生成生产报表。经实验证明,设计系统生成电力生产报表的时间较短,具有较好的可行性与适用性。     

基于ActiveX和XML技术实现的B/S环境下报表打印

本文针对B/S系统中无法在客户端实现复杂报表打印的问题,利用Delphi开发了一种ActiveX报表的打印控件.该ActiveX控件采用XML文件作为中间数据交换格式,并对XML文件进行格式解析,得到从服务器中响应回客户端的数据信息和控制信息,最终在客户端的打印机上实现打印输出.     

基于三层架构的工业报表系统设计

提出了按照数据访问层、领域逻辑层和表现层实现报表设计的体系结构.设计的OPC客户端,数据处理动态链接库和水晶报表显示前端分别对应于这三层结构.报表系统结构灵活,非常适合配合多种多样的工业控制系统使用.     

基于XML的报表系统的研究

本文首先简单地介绍了XML和XSLT技术,然后给出B/S结构的三层报表系统,并详细描述了关键的实现技术。通过客户端的需求,报表数据可以保存在本地磁盘,也可以以html、PDF等格式输出打印。     

报表系统中ETL通用框架的设计与研究

目前,随着企业信息的集成交换需求越来越频繁,使得大型报表系统研究中主要存在以下缺陷:前端数据源的分析处理能力低,导致报表生成和维护时间过长.文中在报表系统中引进了ETL技术对前端异构数据进行有效的汇总、分析和数据的抽取转换加载,缩短了报表系统中数据的处理时间,提高了报表生成的速度和效率,使得报表系统的通用化得到加强.同时引入了XML技术实现了抽取和转换规则的定义,使得ETL模块具备良好的通用性和可扩展性.     

基于ASP.NET在线测试系统的设计与实现

介绍了基于ASP.NET在线测试系统的设计方案.该方案采用分层结构模型,并在数据库访问模块设计中,运用Abstract Factory设计模式解决模块通用性和扩展性.提出XML Web服务和客户端脚本相结合的方法设计B/S模式下定时器.针对在线测试对性能要求高的特点,采用OPEN XML技术、连接池、数据缓存、页面缓存等技术对系统性能进行优化.实验表明系统运行稳定、可供大量用户同时在线测试,并能实时处理数据.     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.