基于网络环境的自主学习平台设计与实现

研究并设计了以培养自主学习能力为出发点的自主学习平台,实现了以学生为主体、教师为主导的交互网络教学环境。对系统功能进行需求分析和功能设计的基础上,利用JSP、SQLServer2005等关键技术对自主学习平台的前台(学生)模块、后台(教师与管理员)模块进行了详细设计并实现。     

基于J2EE架构的民航信息基础架构云平台设计

目前民航信息基础数据较多,使用存储信息容器数量不足的平台存储信息时,出现基础数据交互效果不佳的问题。为此,提出基于J2EE架构的民航信息基础架构云平台设计。采用磁盘阵列的方式进行数据存储,利用云终端通过虚拟桌面服务实现虚拟页面展示;构建民航信息基础架构云服务平台,根据民航信息基础云服务数据通信流程,设计多种功能模块,使用虚拟映射算法,模拟各个模块间的协同性,满足实时通信需求。测试结果表明,该平台最大吞吐量为4.4Gbit/s,最小吞吐量为2.6Gbit/s,与理想值一致。     

基于APP监控的UPS电池管理系统的实现

本文所设计的电池监控系统由带有WiFi模块的UPS电池模拟测试平台、基于Android平台的UPS监控APP和电池管理系统三部分组成。其中电池模拟测试平台采用美国微软公司的PIC18F4685单片机作为主控芯片,通过CAN通信与电池管理系统进行信息传输,利用串口连接WiFi模块通过WiFi-Direct与监控APP进行数据交互,从而实现采集数据、诊断报警、参数标定的功能,达到实时监测的目地。     

基于Moodle的“电路与模拟电子”网络教学平台的设计与实现

针对高校的《电路与模拟电子技术》课程,设计了一个基于moodle平台的网络教学平台模型。该模型包括登陆、管理、交互、资源四大模块。使用XAMMP软件包和Moodle2.1开发包进行架构。实践证明,该平台不仅可以有效提高学生的学习兴趣和创新能力,而且还可以成为学生的个人,提高学习效率。     

基于J2ME平台的3GPP MMS设计与实现

本文提出了基于J2ME平台的3GPPMMS设计与实现.该系统包括四个模块:用户管理模块、SMIL模块、文件管理模块和发送接受模块.在本文中分别介绍了各个模块的设计与实现,特别是SMIL模块的设计与实现,以及MMS网络通信模块,介绍如何应用3GPPSMIL来实现丰富多彩的多媒体短信服务.     

高校师生网上互动平台的设计与实现

本文介绍了师生互动平台的开发过程、实现的功能。师生网上互动平台提供了一个比传统的师生交互更加高效的网络实时交互环境,比起传统的师生交互形式具有省时、方便、节约资源等众多的优势。该平台使学生和老师之间、学生和学生之间可通过互联网进行实时的信息交流,使得在课余时间学生之间可以互相学习和学生与老师可以互相交流学习方法等。     

基于MPU6050简单控制设备

随着信息技术发展,对于信息的交互也提出了更高的要求,除了传统的输入设备计算机键盘、鼠标等,人们开始寻找更为便携、更易于操作的外部设备以辅助实现更为人性化的、更加多样化的交互。本文首先概述了设计该控制设备的背景,其次是课题的目的及意义,然后介绍了设计的总体思路和结构框架,之后再对各个模块进行了介绍,其中包括MPU6050初始数据的获取以及数据的处理和蓝牙模块的设计以及手机端微信小程序的构建。     

基于嵌入式系统的多媒体播放器的设计

本课题研究的网络播放设备方案采用telechips公司生产的TCC8900开发板,嵌入式操作系统采用当今最流行稳定Android 2.2操作系统,在分析Tcc8900开发平台的架构和软件开发方式的基础上,研究流媒体服务器和LIVE555开源库,设计客户端流媒体数据接收模块,实现客户端与服务器的交互。本文的研究为IPTV视频点播终端的实现提供了良好的软硬件基础。     

基于Android和VTK的医学图像可视化系统设计与实现

提出一种基于Android开发平台的医学图像可视化系统,该系统基于面向对象方法设计了功能强大的可视化类库Visualization Toolkit(VTK)。首先介绍整个系统结构框架,然后详细分析各个模块的设计与实现,最后在真实设备上进行测试。该系统实现了对常用医学图像Digital Imaging and Communications in Medicine(DICOM)数据和Stereolithography(STL)数据进行可视化和简单交互。     

基于VC++的变电站监控软件通信模块设计

工业变电站监控软件系统中通信模块的设计开发,将直接关系到现场监控器与上位机及上位操控命令间安全可靠实时的进行信息交互.针对工业变电站监控软件的开发,基于VC 平台和UART协议,提出了一种监控软件通信模块设计方案,开发了通信软件模块,并与变电站微机监控器进行了联网调试.结果表明,该通信模块实现了与相关协议微机监控器间安全、稳定和实时的数据通信,各项指标符合设计要求,验证了该通信模块的有效性.     

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.     

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

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.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.