基于GPIB接口总线的虚拟仪器

本文介绍了虚拟仪器的GPIB总线接口技术计算机通过GPIB接口卡控制带有GPIB总线接口的电流源和电压表，构成了Ⅰ～Ⅴ曲线虚拟仪器测试系统。在Labview环境下完成了虚拟仪器前面板以及后台框图程序的设计．与硬件系统一起完成虚拟仪器的测试任务。     

VC++6.0环境下GPIb虚拟仪器的设计

介绍了基于GPIB的虚拟仪器技术发展、特点,讨论了GPIB测量系统的组成。阐述了VC 6.0环境下借助于ComponentWorks 和VISA实现虚拟仪器软件编程的方法。其中,以一个通用电源测试台作为实例,来展示虚拟仪器的开发、应用。     

基于GPIB接口的数字存储示波器功能扩展

本文结合虚拟仪器和传统仪器的优势，实现了基于GPIB接口的数字存储示波器功能扩展．使其数据分析处理能力得以增强。由于本系统具有通用性和灵活性强等优点．易于推广到各种传统的GPIB仪器，从而构成由计算机控制的多功能智能仪器系统。     

一种心电信号虚拟仪器的设计与实现

针对目前传统心电图机的主要缺陷，基于LabView虚拟仪器开发平台实现了一种新型的心电信号虚拟仪器；该系统导人心电信号，经放大滤波电路处理后由GPIB数据采集卡输入计算机，再在虚拟仪器软件上进行分析显结果；应用结果表明，该系统结果准确、容易实施、造价低廉。     

基于GPIB接口的虚拟仪器在接收机测试台的应用

结合虚拟仪器的特点详细分析了一个基于GPIB接口的虚拟仪器系统——接收机测试台系统,介绍了该系统的硬件组成及其软件设计,展示了虚拟仪器在自动测试系统中的应用。系统的功能模块化设计和用户界面的软件化设计,充分体现了虚拟仪器的优势。最后对虚拟仪器的前景进行了展望。     

电路交换系统板级测试的设计和实现

测试系统对于保证产品的质量有着重要的作用。介绍和分析了测试系统的组成，分别从软件和硬件及文档方面具体阐述了测试系统的需求和功能。在硬件设计上，使用了GPIB测试设备和虚拟仪器，降低了开发成本，并便于维护和升级。在软件设计上，使用了VC和虚拟仪器编程语言，降低了开发难度，使测试系统的功能更加丰富和强大，易于操作。     

基于GPIB接口总线虚拟仪器的开发

本文在对虚拟仪器的硬件组成和软件实现方法深入研究的基础上，在LabVIEW软件平台上，应用VISA标准，设计并实现了面向GPIB总线接口的虚拟函数发生器，而且，该实现虚拟仪器的方法具有一定代表性，对一般虚拟仪器的设计均适用。     

基于混合总线的虚拟仪器教学实验系统设计

针对自动测试、虚拟仪器及总线设备类课程的试验设备不足,在VXI、GPIB及LXI混合总线的基础上构建了一个虚拟仪器教学实验系统,并以C#.NET结合虚拟仪器技术建立了整个系统的软件架构;介绍了该系统的硬件软件设计方法及其实现的关键技术;通过课程实践表明,该系统功能强且扩展性好,满足了实验的要求,节约了实验成本。     

基于GPIB总线虚拟仪器的设计与应用

介绍了采用功能强大的虚拟仪器软件开发集成环境LabVIEW开发基于GPIB总线的虚拟仪器的全过程及其硬件和软件要求，并给出了一个开发实例。实例为采用LabVIEW虚拟仪器开发平台设计一个测量多路前置放大器芯片各种性能参数的测试仪。     

基于GPIB总线的虚拟仪器设计

介绍了采用功能强大的虚拟仪器软件LabVIEW开发基于通用接口总线（GPIB}总线的虚拟仪器的一般过程,并给出了一个基于RIg01DM3052数字万用表的开发实例,结合实例介绍了虚拟仪器开发的具体过程。与原有仪器相比基于GPIB的虚拟仪器大大扩充了原有仪器功能,实现了计算机自动测试,并能对测试数据进行保存,分析处理,具备很大的工程应用价值。     

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.     

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.     

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     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.