运用多媒体技术,提高小学语文课堂教学效率

科学技术的日新月异发展,推进了素质教育的进程,多媒体技术已经走进了课堂,为教师教学开辟了广阔空间。多媒体技术激发了学生浓厚的学习兴趣,化解了教学难点,创设了丰富的教学情境,有效地进行了德育渗透,突出了学生主体地位,提高了课堂教学效率。本文试就小学语文教学运用多媒体技术问题进行了探讨。     

简论多媒体技术在小学语文教学中的应用

科学技术的日新月异发展,多媒体技术已经进入了课堂,优化了课堂教学,提高了教学效率,突出了学生主体地位,激发了学生学习欲望,调动了学生学习的积极性、主动性、创造性,扩大了知识容量,促进了学生想象思维的发展,实现了课堂教学过程的最优化。本文试就多媒体技术在小学语文教学中的应用进行了探讨。     

软件构架中接口设计方法

该文强调了软件构架中接口设计的必要性,介绍了5个方面的设计原则;给出了接口描述规范,介绍了5个指导方针;描绘了接口设计的标准结构(包含9个部分);罗列了接口可能的涉众;阐述了接口的表示方法;用具体的实例展示了这些方法在实践中的应用。     

多媒体技术在小学数学教学中的作用

科学技术的日新月异发展,推动了素质教育的进程,多媒体技术已经走进了课堂,本文阐述了小学数学教学应用多媒体技术,激发了学生浓厚的学习兴趣,化解了教学重点难点,营造了良好的氛围,优化了课堂教学,提高了课堂教学效率。     

基于契约的网格资源管理

针对网格计算经济，研究了将契约应用于网格资源管理和调度的方法。提出了一个结构化的契约模式，完成了契约匹配算法，分析了契约的安全问题和相关处理。在此基础上提出了基于契约的网格资源管理体系。该方法简化了资源管理以及网格监测，规范了GSP的行为，促进了资源的可靠性，进而推进了QoS的改善。     

新编民谣

到了天津才知道自己笑话讲不好到了上海才知道自己穿的过时了到了湖南才知道自己辣的吃不了到了四川才知道自己麻的受不了到了山西才知道自己喝醋滋味了到了山东才知道自己爽快有多好到了新疆才知道石油真是不愁了到了内蒙才知道大革原有多么好到了西藏才知道空气真是缺不了     

基于CORBA的发布-订阅系统

设计了一个基于CORBA的、混合了一般发布-订阅和点对点传输模式的发布-订阅系统。结果表明，该系统满足了测控需要。介绍了系统的原理和基本结构，描述了工作流程，分析了特点和优点，给出了基于TAO／ACE的实现，最后提出了今后的工作。     

超越影像一大步——尼康COOLPIX P6000数码相机

厌倦了千篇一律的单调生活了么,厌倦了一模一样的眼前景像了么？厌倦了没有新意的照片了么？那现在是考虑尼康COOLPIX P6000数码相机的时候。你绝对不能把尼康COOLPIX P6000当作一款普通意义上的数码相机,因为当数码相机遇到了GPS和网络的时候,一切就变得不那么简单了。     

基于GridSim的网格调度模拟

详细分析了GridSim工具，并与当前几个主要的网格模拟工具进行了对比，然后探讨了GridSim工具的改进，扩展了计算资源的功能，增加了数据存储资源模型。最后提出了基于GridSim工具的分模块的调度模拟开发方法，按照这种方法建立了Min—min调度算法模拟平台，展示了GridSim工具的功能。     

钢材退火炉的程序控制

本文简要介绍了钢材的退火工艺，在此基础上采用智能调节仪实现了钢材退火炉炉温的程序控制，克服了退火炉内温度不均匀的现象，改善了控制精度和自动化程度，提高了产品质量和生产率，最后本文简单介绍了电磁兼容的有关概念，分析了本文中存在的电磁干扰并给出了解决方案，实践证明，该方法非常有效。     

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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