很好很强大 我的Foobar不一般

作为一款Windows平台下的高级音频播放器,Foobar自身具有不少优点,如支持播放增益、资源占用低及音色纯正等。正因如此,所以目前有不少朋友都安装了该播放器。     

基于PowerBuilder的Flv视频文件播放的实现

以Windows为开发平台,PowerBuilder为开发工具,采用控件,实现了Flv视频文件的播放.实验结果表明,在开发Flv视频文件的播放器中,采用第三方Flv视频文件播放控件是很容易实现的,同时,开发的播放器体积小,且方便携带.     

电影随你到处走——元典PVP影随行E320

元典“PVP影随行”拥有20G、30G和40G的容量可供选择，可以实现对高清晰度影片的播放．是真正意义上的随身数码影院。支持MP3的播放，音质播放效果比普通MP3播放器更上一层楼。内建CF．SD卡插槽．用户可以随时观看内置的图片与资料．PVP影随行采用了微软中Windows CE系统．中的界面让使用更加轻松自如。     

使用JavaScript控制网页嵌入Windows Media Player播放器

本文介绍了网页嵌入Windows Media Player播放器以及基本参数,并且介绍如何使用JavaScipt进行Windows Media Player播放器基本播放控制和播放列表添加的方法。     

调频发射机的Wince驱动设计

在便携式音频播放器、MP3播放器、便携式导航设备（PND）等带有音频播放功能的便携式设备中,经常会用到一些调频发射机来实现音频发射功能。当PND中需要该功能模块的时候,鉴于PND的软件环境,有必要为该模块编写一些驱动程序,以保证调频发射功能的正常运行。本文研究的是,在Samsung公司提供的S3C2440（ARM9内核）的开发板上,为一个PND设备的调频发射机（SN761634）写一个基于Windows CE5．0的驱动程序。试验结果测试表明,该驱动程序可以保证SN761634在PND设备中正常集成运行。同时,本文还提供了一套完整、详细的Windows CE流驱动设计方案,可以借鉴用于其他基于IIC总线设备的流驱动开发。     

嵌入式高清播放器的设计与实现

针对MPlayer在Intel CE3100嵌入式平台上解码高清视频存在的问题,根据CE3100平台的特性设计了一种新型的双核高清播放器.该双核播放器由一个基于软件解码的软核播放器和一个基于硬件解码的硬核播放器组成,并在播放器的前端引入了一个主控制中心,负责分析并获取各种媒体文件的编码格式、码率以及分辨率等属性信息,根据这些信息来决定启用软核播放器还是硬核播放器.同时,详细介绍了该播放器的实现过程.对比实验结果表明了该播放器的性能和优点.     

使用Platform Builder配置Windows CE操作系统

Windows CE操作系统是嵌入式系统的开发利器.Windows CE Platform Builder 3.0提供创建、裁剪和配置Windows CE的所有开发和调试工具.深刻理解和灵活运用Platform Builder的配置文件.REG、.BIB、.DAT、.DB是定制适合目标平台的Windows CE操作系统的关键.本文详细分析Platform Builder的配置文件,并以向Windows CE添加RTL8139网卡驱动程序为例,说明如何通过修改配置文件添加目标平台的设备驱动程序.     

Windows CE机卡分离数字电视原型系统的实现

本文详细介绍了基于Windows CE机卡分离数字电视接收播放原型系统的系统框架和数据接收驱动及播放系统的具体实现。     

WinCE下基于ARM的USB摄像头图像采集

目前基于linux操作系统的图像采集系统应用研究较多,而针对Windows CE平台下的探讨较少,本文着重探讨了基于ARM9内核和Widnwos CE平台的图像采集系统的设计,完成了Windows CE平台下的USB摄像头驱动软件的开发,并提出了一种提高实时显示图像数据品质的方法,最终实现了Windows CE平台下视频图像的采集和显示.     

Windows CE中基于TCP/IP的网络通信研究

本文根据Windows CE的网络通信体系及TCP通信原理,利用嵌入式实时操作系统Windows CE 6.0平台提供的Socket API函数,设计了一种基于Windows CE 6.0和ARM芯片的网络通信系统。分别讲述了服务器端和客户端的软件设计方法,实现Windows CE与PC机之间的TCP网络通信。     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

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.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

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.     

Call for papers Special issue on Modeling and control technologies for civil,energy,and power systems

正The control of civil,energy,and power systems presents significant new challenges for modeling and control theory.The purpose of this special issue is to provide a forum for researchers and practical engineers to discuss the recent advances in modeling and control technology development for civil,energy,and power systems.Prospective authors are invited to submit their original contributions with the focus on theory or applications of modeling,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 and promote academic exchange between Chinese and foreign scientists everywhere.