基于Android的计算机基础课程在线学习平台

随着移动互联网的快速发展,校园应用移动化已经成为高校信息化建设的主要发展方向之一。笔者以计算机基础课在线学习平台为例,开发一套基于Android的在线学习平台,该学习平台包括Web端和移动终端。移动终端的主要作用是展示课程内容。学生通过Android客户端,可以学习计算机课程的教学内容,还可以和教师进行互动答疑。教师则可以在后端服务器端,对课程等内容进行管理。     

基于IOS的高校课表查询系统设计与实现

针对高校传统课表查询方式的不足,设计了一个基于IOS移动平台的课表查询系统,可以支持教师、学生使用IOS移动设备与服务器进行通信,随时随地查询课表,管理备忘录和学习笔记经过测试表明,该系统为课程管理提供了更为快捷有效的方案,并且有助于提高工作、学习效率.     

基于IOS平台的新闻应用软件设计分析

近些年,随着互联网技术和通信技术的迅速发展,移动网络和各种移动平台得到了迅速的发展,移动平台所具备的便携性,触控性和智能性等优点使移动终端在社会之中得到了迅速的普及,因此互联网用户的的网络活动的重心也由电脑端逐渐转移到移动端.越来越多的年轻人选择在移动端进行新闻等信息的阅读,因此在手机新闻类应用出现了,本文针对这一现状设计了一款完整的以IOS操作系统为基础的移动网络新闻阅读应用.     

基于MOOC理念的课程移动学习平台的设计

随着移动技术的不断发展和成熟,随时随地利用移动终端学习将是一种新兴的学习方式。本文在分析国内外现有研究的基础上,秉承MOOC完全开放,共享资源的理念,以《数据库技术与应用》课程为例,采用HTML5和CSS等技术设计并实现了一个交互灵活,界面友好,功能齐全,适应IOS和ANDROID系统的移动学习平台。     

基于Android的移动学习资源开发设计

随着手机等移动终端的普及,移动学习的需求也与日俱增。本文对学生在移动端学习的特点进行了深入分析, 结合汽车学科相关课程,基于Android平台开发了适用于移动端学习的软件,分析了移动学习资源平台的总体设计、功能结构设 计,以及各个功能模块的设计开发思路,并且对相关软件进行了测试。测试表明该软件运行正常,基本满足所需功能要求。     

5G时代移动端教学探索

为有效提升移动端教学效果,分析了5G技术的发展及移动端教学现状,对“数据库应用技术”课程进行了移动端教学设计,利用超星学习通平台将5G优势融入教学设计中。根据课程特点设计了在线签到、发布问卷与任务点、直播授课与互动、在线测验与解答、课后作业与点评等环节,并对各个教学环节产生的平台数据进行统计分析,对学生成绩进行综合评价,总结教学中面临的问题,对移动端教学在5G时代的发展优势进行探讨。     

基于IOS平台的美食查询系统设计与实现

随着移动互联网和大数据技术在传统餐饮行业的迅猛发展,快速获取想要的美食信息成为亟待解决的关键问题.介绍了基于IOS平台的美食查询系统是利用IOS移动终端设备的高性能、便携和随时随地可接入移动互联网等特性,通过MVC框架设计模式和SQLite数据库技术等方式实现美食的集中化管理,包括用户定位、美食推送、美食搜索、GPS导航等业务功能,将便捷的美食查询服务通过网络提供给消费者.     

基于移动终端设备的经管课程嵌入式微实验教学研究

移动终端的便携性、无线通信的稳定性以及学习设备的智能化等一系列优势,促使学习者可以弹性的制定学习计划,甚至可以不分时间、不分地点的根据自身情况进行学习.将高校的经管课程设为研究入口,对相关的流媒体技术进行深入了解,同时对C/S架构、音视频编码技术、HLS协议等移动学习流媒体系统的关键核心技术进行深入掌握,设计了一款经管课程嵌入式微实验教学系统以满足移动终端设备的各种使用需求.     

面向移动APP的高性能计算作业监控系统

当前高性能计算技术应用广泛,然而PBS作业管理系统存在操作麻烦、数据显示不直观等诸多缺点。结合当前信息化高速发展、智能终端和移动APP进一步普及的现实,利用IOS平台的Xcode集成开发工具编写移动端APP、使用PHP语言编写中间接口程序,设计面向移动端的高性能计算监控系统。使用移动端的监控系统可以避免PBS存在的部分缺点,具有较好的效率和较高的实用性。实验表明,该APP对移动端的资源占用较少,并且可较好地应用于高性能计算作业调度系统的监控。     

基于多协议融合的实时移动视频监控系统

提出一种支持多协议融合的实时视频监控系统的设计与实现方案.系统可通过 Hi3520嵌入式处理器平台和移动端摄像头进行视频采集,采用H.264/AVC压缩编码和参数优化,兼容RTP/RTSP和RTMP多种通信协议进行媒体流传输;设计的Android的移动客户端可以实现视频数据的实时解析、网络串流等.实验测试表明： PC和采集端显示的画面仅有1~1.5秒延迟,系统可以灵活实现不同应用场景下的高清、实时监控.     

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.     

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.     

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.     

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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