基于Web的远程教学平台的设计与实现

本文介绍了一个基于Web的远程教学平台的设计与实现。该平台分为管理员模块、教员模块和学员模块等三个逻辑功能模块：物理实现上包括管理员子系统、个性化教学子系统、答疑子系统和考试子系统。个性化教学子系统采用适应性和智能技术动态生成个性化学习课件【1，2】，答疑子系统采用了同步智能答疑的技术，考试子系统突破了只能文字出题的限制，引入视频、音频和复杂数学公式等各类题目。该平台在“计算机基础”课程中得到初步实现。     

基于Web的远程教学平台的设计与实现

本文介绍了一个基于Web的远程教学平台的设计与实现。该平台分为管理员模块、教员模块和学员模块等三个逻辑功能模块;物理实现上包括管理员子系统、个性化教学子系统、答疑子系统和考试子系统。个性化教学子系统采用适应性和智能技术动态生成个性化学习课件[1,2],答疑子系统采用了同步智能答疑的技术,考试子系统突破了只能文字出题的限制,引入视频、音频和复杂数学公式等各类题目。该平台在“计算机基础”课程中得到初步实现。     

基于XML的财经类跨专业教学综合实训系统设计

为了解决现有财经类跨专业教学系统中存在的实习边缘化、专业知识运用不到位、经营流程片面化等问题,提出设计基于XML的财经类跨专业教学综合实训系统。在XML基础上建立模拟真实企业环境的实训系统,系统中硬件部分由管理员子系统、教师子系统和学生子系统组成,分别为管理员、教师和学生提供了管理、查找、下载等功能;软件部分设计多个模块,为学生和教师提供查看和发布公告、答疑、个人信息修改和实训任务等功能。采用层次分析法,计算各个指标之间权重,评判系统的优劣性。实验结果结果表明系统性能较高,具有一定可行性。     

基于WWW的实时动态答疑系统

以SIP视频会议系统为原型,设计实现了基于WWW的实时动态答疑系统.详细阐述了该系统的功能结构、设计方案及核心技术实现.视频答疑模块采用了会议管理系统和控制系统分离,各子系统分层设计的设计方案,具有良好的可扩充性.系统实现了点到多点的实时答疑,真正实现了教师和学生面对面的交流.     

强化和完善《大学化学教学网站》

《大学化学教学网站》采用目前流行的基础平台和运行环境，切入多媒体、网络和数据库技术，将数学和管理融为一体，在模块功能的设计上强调其实用性、综合性和智能性，实现了网上答疑、网络考试和网上实验选修等重要模块的功能智能化设计与控制。对网站功能进一步的强化和完善作了介绍。     

基于.NET技术的网络考试系统研究与实现

根据实际教学需要,本文主要介绍了网络考试系统的总体框架结构设计,该系统划分了三个子系统,即学生应用子系统,教师应用子系统和管理员应用子系统,对每个子系统的功能做了详细设计。采用目前流行的B/S架构,应用最新的.NET框架进行实现。     

基于Web的全国计算机等级考试报名系统设计

本文论述基于Web的计算机等级考试报名系统开发的目的和意义、设计思想、系统设计、功能设计和安全性设计等。给出了几个重要模块：考生报名注册模块，班级管理模块，公告管理模块，考生管理模块，数据导出模块和管理员信息修改模块。本系统在Web服务器上实现。     

高职院校网络考试系统的设计与实现

高职院校网络考试系统的实现结合了ASP.NET、ADO.NET及AJAX技术,采用B/S结构模式,主要由管理员功能子系统、教师功能子系统和学生功能子系统组成,其功能包括题库管理功能、阅卷功能、网络在线考试功能等。本文主要对网络考试系统开发过程中涉及的技术及设计内容进行探讨。     

网络在线用车管理系统的设计与实现

本文采用ASP开发了网络在线用车管理系统,实现了管理车辆、驾驶员信息,普通用户预约车辆的信息查询等的自动化。系统主要包括管理员子系统、驾驶员子系统、普通用户子系统三大模块。此系统最关键是实现了网络在线用车管理办公自动化,使用车流程得到最大的简化。     

基于B/S模式的虚拟实习平台的设计与实现

本文介绍了一个B／S结构的虚拟实习平台的设计与实现包括虚拟实习平台的体系结构和逻辑功能及特点重点讨论了学生答疑、教师课件制作、实习报告等子系统的功能设计和实现技术。     

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.     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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