基于网络处理器的IPSec协议实现技术研究

在总结了IPSec协议的实现框架的基础上，介绍了网络处理器的重要相关实现技术，例如树搜索引擎技术等，结合实际的工程经验提出一套基于网络处理器的IPSec实现方法，描述了重要实现环节，例如SAD＆SPD实现、IPSec协议处理、加／解处理单芯片方案等。最后，对在新型路由器上实现网络协议的开发方法的发展趋势作出了预测。     

用PHP实现动态网页

利用PHP和MYSQL数据库实现的教学网站用网页，实现了简单输入，格式输出，大大降低了录入人员的门槛，实现了网页的批量处理。     

iSCSI协议的仿真实现

分析了iSCSI协议原理，提出了利用iSCSI协议规定的特性和参数在OPNET8.0上实现iSCSI协议的思路和方法，建立了iSCSI仿真模型，分析了SCSI和iSCSI层的实现方法，定义了在实现过程中所处的状态，阐述了这两层在OPNET中的实现过程。     

基于.NET平台的网络课程创作系统的设计与实现

网络教学的开展需要优秀网络课程的支持。根据网络课程的特点，讨论了基于．NET平台下面的网络课程创作系统的设计和实现，对系统进行了分析和功能设计，并重点解析了几种关键的实现技术，如基于Web的可视化编辑的实现技术，数据库服务层实现技术，模板个性化的实现技术等。     

整数模加器的一种硬件设计方法

在深入分析模加运算的实现基础上，提出了一种模加运算的实现方案，并论证了该方案的正确性。基于这种实现方案，设计并验证了一块实现16位模加运算的逻辑电路，仿真结果表明了电路的正确性和设计方案的可行性。     

面向机群路由器的ForCES协议实现技术研究

在对机群路由器和ForES协议进行分析研究的基础上，提出了协议实现的总体框架，并对协议实现的关键技术进行了深入地分析。同时，设计和实现了一套开放智能控制平台原型系统，并在该平台上实现了ForES协议。     

立方体表面上的图象拼接

介绍了一种全方位全景图的建模和实现方式，给出并实现了普通图像、立方体表面以及景物所在平面之间一组新的坐标变换，提出了一种实现彩色图象拼接的方法，在立方体表面实现了实景图象的拼接，给出了拼接实例，为全方位全景图象的生成奠定了基础。     

基于RTEMS的ATM网卡设备驱动程序以及CIPOA的研究与实现

分析了在RTEMS平台上设计和实现ATM网卡的设备驱动程序，并在此基础上进一步研究CIPOA技术的实现。针对特殊应用，在设备驱动程序和CIPOA的设计和实现中简化了协议实现，增强了实时性，并进行了综合性测试。     

高速计算机网络协议实现技术

协议实现技术是影响高速计算机网络性能的一重要因素，本文对协议实现技术做了深入的分析和探讨，研究了硬件实现技术、并行实现技术，对软件实现新技术－－流机制进行了分析和分析。     

MatriXVB上智能算法实现的研究

介绍了Matrix VB在工程上实现智能算法的一种方法。该方法可以降低代码的复杂度，提高系统可靠性，易于实现数据的动态表现。以实现自适应BP算法在冷却塔风机效能建模中的应用为例，介绍了实现过程，为实现其它智能算法提供参考。     

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.     

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.     

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