从虚拟实践看虚拟性思维

数字化时代的到来使人类生存的环境变成一种虚拟化的实践,这种虚拟化的实践对现实中人的思维方式产生重要影响。同时,虚拟性的实践对于思维的创造性、个性化的发挥有重要作用。     

基于计算机LabVIEW的虚拟仪器的设计实现

论文采用计算机虚拟仪器开发平台LabVIEW及PCI-1200数据采集卡等相应硬件设计实现了虚拟数字示波器,所谓虚拟仪器技术,就是用户,根据测试任务的需要来定义和设计仪器的测试功能,即通过应用程序将通用计算机与功能模块硬件结合起来,用户可以通过友好的图形界面来操作这台计算机,虚拟仪器主要由硬件和软件两部分组成,其中硬件部分主要包括计算机和必要的计算机仪器硬件模块。LabVIEW图形化程序设计基于面向对象技术和数据流技术。通过实验证明虚拟实验系统能很好完成对信号的采集、分析处理等工作。具有快速、准确等特点。     

The virtual learning future

Since there is a real possibility that online courses will become the dominant informational platforms of the future universities need to address a range of issues from design and quality through to ethics and economics to ensure that the all-round investment required reaps positive outcomes. This paper addresses some of the issues that have confronted teachers and students engaged in online teaching and learning in eastern and western contexts. This paper concludes that Asian students are not necessarily poor online learners, as has often been suggested, but that they are alert to the importance, and real advantages, of personal interaction in the learning process. For this reason it is suggested that integrated hybrid virtual and classroom courses might prove more effective and elicit more positive responses from such students than courses that are conducted entirely online.     

Learning in virtual worlds

Virtual worlds for adults （e.g. Second Life）, youth （e.g. Habbo） and children （e.g. Whyville） have a great potential for learning and teaching practices for enriching wider public and engendering collective experience and collaboration. Informal learning environments such as virtual worlds offer children and adults various intellectual and sensory activities or flow experiences according to Csikszentmihalyi. Virtual worlds promote social interaction and offer visitors an opportunity for various interactive activities which can sometimes not be realized in real life education. Children and adults can explore and learn in a different way and from a different perspective, also with educational games. The paper deals with learning possibilities and opportunities in educational virtual worlds. Virtual worlds can introduce quality learning environment and offer new challenges in the educational field.     

Literacy in virtual worlds

Introducing new digital literacies into classroom settings is an important and challenging task, and one that is encouraged by both policy‐makers and educators. This paper draws on a case study of a 3D virtual world which aimed to engage and motivate primary school children in an immersive and literacy‐rich on‐line experience. Planning decisions, early experimentation and the experience of avatar interaction are explored. Using field notes, in‐world interviews and observations I analyse pupil and teacher perspectives on the use of digital literacy and its relationship to conventional classroom literacy routines, and use these to trace the potential and inherently disruptive nature of such work. The paper makes the case for a wider recognition of the role of technology in literacy and suggests that teachers need time for experimentation and professional development if they are to respond appropriately to new digital literacies in the classroom.     

虚实结合的网上交互式虚拟实验研究

网络教育的专业覆盖面由于受到实验教学条件和网上虚拟实验资源的限制,使理工类专业不能满足教育的社会需求.本文在分析适用于网上实验教学的技术基础上,根据三维建模虚拟技术和图像采集虚拟技术的各自优势,提出了"虚实结合"网上虚拟实验课程的设计方法.这种方法不仅适合于各类实验教学,而且图像逼真度高,开发速度快,有利于理工类网络教育专业的发展.     

Developing trust in virtual teams

Rapid globalization, advances in technology, flatter organizational structures, synergistic cooperation among firms, and a shift to knowledge work environments have led to the increasing use of virtual teams in organizations. Selecting, training, and socializing employees in virtual teamwork has therefore become an important human resource function. This article provides an overview of the research on trust in virtual teams, its importance, and how to overcome some challenges of trust development in virtual teams. Recommendations for virtual team developers and human resources professionals are presented.     

Ethnography in a virtual world

This article situates the discussion of virtual ethnography within the larger political/economic changes of twenty-first century consumer capitalism and suggests that increasingly our entire social world is a virtual world and that there were very particular utopian and dystopian framings of virtual community growing out of that history. The article also situates the discussion of virtual ethnography within the anthropological ‘crisis of representation’ discussion to suggest there are many parallels between the two discussions. These discussions suggest that while ethnographers have recognised that all societies are virtual except, maybe the smallest, new information technologies, and particularly, the Internet create a persistent virtual space that transforms earlier notions of the imagined society. Finally, the article suggests that educational ethnographers are in a position to discuss the new pedagogical issues that arise when attempting to do ethnography in our contemporary virtual world.     

虚拟PCM实验的设计

采用LabVIEW设计了虚拟PCM实验,内容包括抽样、量化以及编码3个模块,运行结果表明该实验结果可靠,已在学生实验课中应用。     

基于网络的虚拟实验室的研究

近年来,随着虚拟技术和网络技术的发展,通过网络构建虚拟实验室已经成为可能,虚拟实验室已成为远程教学研究的重要方面.虚拟实验室的开发是高校"信息化校园"建设中教育环境虚拟化的一个重要组成部分.该文在分析虚拟实验室国内外研究现状及虚拟仪器开发技术的基础上,将虚拟仪器技术、数据库技术和网络技术应用于虚拟实验室的开发,构建了基于网络的虚拟实验室系统,为用户提供网络化、开放式的实验环境.     

The virtual class is coming

A long term action research programme initiated in 1987 by the Department of Communication Studies at the Victoria University of Wellington, New Zealand, is seeking to develop a virtual class. The virtual class is regarded as the critical component of a new educational paradigm for an information society. The action research programme takes the form of a spiral of cyclical attempts to create a virtual class. Each attempt is seen as a syntagmatic episode of a virtual class paradigm attempted in the light of an existing paradigm. The results of each syntagmatic episode are seen as influencing the further development of the paradigm.     

Quality in virtual education environments

The emergence of the Internet has changed the way we teach and learn. This paper provides a general overview of the state of the quality of virtual education environments. First of all, some problems with the quality criteria applied in this field and the need to develop quality seals are presented. Likewise, the dimensions and subdimensions of an empirical instrument to improve and assess the quality of online education are examined. This tool has already been applied to several educational contexts; though not definitive, it aims to improve not only specific areas, but also the whole educational approach as a system.     

网络化的电子仪器库

充分利用多种媒体构建了一个多元化的虚拟仪器操作环境--电子仪器库.它的优势在于其动画演示和录像解说带来的直观和形象,从而方便了学生的浏览和学习.相比以往通过阅读说明书来学习使用仪器的方式,这是一个较大的改进和创新.模拟的实验环境有效地拓宽了实验教学空间,令学生可以不受时间和场所的限制,随时在网上进行仪器使用的学习和操作练习.随着其内容的不断扩充,仪器库将成为本科生和研究生的有效辅助学习平台,具有很好的实用价值.     

A multi-campus virtual corporate laboratory

The US Semiconductor Industries Association, Semiconductor Equipment Manufacturing Institute and Department of Defense have jointly established a pioneering new long range research effort identified as the Focus Center Research Program (FCRP). In late 1998 the Interconnect Focus Center (IFC) was established at MIT, Stanford University, Rensselaer Polytechnic Institute, State University of New York at Albany, Cornell University and Georgia Institute of Technology (GIT) with GIT serving as the prime contracting university. The overarching goal of the IFC is to discover and invent new solutions that will enable the US semiconductor industry to transcend known limits on interconnections (between billions of transistors in a single silicon microchip) that would otherwise decelerate or halt the historical rate of progress of semiconductor technology.     

便携式虚拟示波器分析与设计

通过以某虚拟便携式示波器为例。这是设计了一种基于USB接口，集控制、驱动、显示为一体的便携式虚拟示波器.并介绍了虚拟示波器的工作原理和软、硬件接口电路，同时通过PC平台来实现部分功能。讨论了示波器的波型显示方法，最后给出了正弦内插显示算法。     

虚阴极现象的物理解释

简要介绍了虚阴极的形成过程、产生微波的机理以及它在军事上的应用。