移动互联网中一种移动学习方案的设计与原型实现

以移动教育方面的三方应用场景为例,设计并实现了一个面向精品课程和开放课程的移动学习系统原型,实现了网络教学资源整合。根据现行主流移动智能终端的特点,针对触摸屏移动智能终端因误操作引起的计算资源和通信资源浪费现象,给出了一个有三方参与的应用系统场景中,可行的减少误操作的应用方法。通过使用确定型有限自动机的方法验证了系统的正确性。测试表明,该方法可以有效降低应用场景中代理服务模块和资源服务模块的工作压力,提高用户体验度。     

A system design framework-driven implementation of a learning collaboratory

This paper describes a design process to support the development of a learning collaboratory, a distributed, computer-based, virtual space for learning and work. A learning collaboratory, as a distributed distance learning environment, offers great opportunities to expand the way people teach and learn and to broaden educational opportunities to an ever increasing range of learners. The challenge is to design distance learning technologies that engender meaningful learning experiences that take full advantage of the power of computer-mediated communication to support innovative learner-centered and collaborative interactions between students, teachers, subject experts, and resources. First, the paper describes the learning collaboratory design framework (LUCIDIFY), a design process that integrates methods and concepts from cognitive systems engineering, theories of learning and instruction, distributed computing, and computer-supported collaborative learning to guide the principled design of learning collaboratories. Next, the paper describes how LUCIDIFY was used in the design and implementation of the collaborative learning environment for operational systems (CLEOS), a learning collaboratory for teachers, students, and practitioners in the physical sciences. CLEOS features two virtual instrument tutorials, an asynchronous messaging system, a project-based design and management application, and a collaborative multi-user domain infrastructure.     

基于SCORM的移动学习资源结构设计与实现

构建移动学习系统离不开移动学习资源的建设。在移动学习资源建设中,为了把低水平的学习资源整合成为高水平、可共享的教学单元,采用案例分析法,通过借鉴SCORM标准,并结合移动学习资源的特点,提出了基于SCORM内容模型的移动学习资源的结构设计与实现方法。     

浅议野战机动通信系统安全电子盘的设计与实现

文中重点描述了安全电子盘的设计思想和实现,较好地解决了机械硬盘存在的问题,对提高信息安全水平有一定借鉴作用,对野战保障能力有促进作用。     

基于智能移动终端的安全检查系统设计与实现

为了提高矿山安全检查信息化水平,提出了一种基于智能移动终端的安全检查系统的设计与实现方案。该方案通过手持终端采集安全检查信息并将其保存到终端SQLite数据库中,同时利用Socket编程使终端安全检查信息通过WiFi无线通信技术传输到服务器数据库中。通过分析矿山安全检查信息来确定矿山的安全状况,从而实现对矿山的安全管理。     

基于JavaCard的NFC移动智能应用系统研究与安全设计

为了进一步提高移动智能终端在移动电子支付通信服务方面的高效性、应用性与安全性,以Java Card智能卡技术原理与NFC移动智能技术理论知识为前提,首先提出了一种基于Java Card和NFC技术的移动智能支付应用系统的模型框架,在该模型中设计了移动智能终端支付银行选择模块,其次针对多标签情况下的应用支付碰撞问题设计了一种改进的动态二进制防碰撞算法。研究表明,应用支付模型框架与防碰撞安全算法在移动电子支付通信服务方面均达到了次优化的应用与安全效果。     

摩托车智能设计中知识库系统的研究与实现*

根据摩托车设计知识的特点和分类,应用面向对象的思想实现了实例知识的表示并构建了层次实例库,采用CLIPS语言实现规则知识的表示并创建了规则库。同时运用了元知识的思想实现各个子知识库之间的管理和知识的利用,建立了知识库管理系统,有效地实现了摩托车设计经验知识的获取、查询和维护,为摩托车智能设计提供了知识支持。     

双模移动终端主动探测系统的DSP设计与实现

针对移动终端用户身份识别的技术需求,设计了一种基于GSM和CDMA双模制式下基带信号处理的主动探测系统。为了满足主动探测系统的实时处理需求,采用高性能的DSP芯片TMS320C6416作为核心处理器,结合其他器件设计硬件系统,完成基带信号处理板中DSP芯片硬件接口的设计。经现场测试结果验证,系统能够实现对开机状态下GSM和CDMA移动用户身份信息的快速捕获,进而表明本设计可满足系统实时性和可靠性的要求。     

The added value of a gaming context and intelligent adaptation for a mobile learning application for vocabulary learning

Two groups participated in a study on the added value of a gaming context and intelligent adaptation for a mobile learning application. The control group worked at home for a fortnight with the original Mobile English Learning application (MEL-original) developed in a previous project. The experimental group worked at home for a fortnight with MEL-enhanced, the original application embedded in an adventure game and augmented with intelligent adaptation. Two learning themes were used: Zoo animals and Neighbourhood. Both groups attended lessons at school on Zoo Animals and Neighbourhood during the same periods they were allowed to work with the application at home. A pre- and post-test were conducted to establish the initial vocabulary knowledge and the knowledge acquired during the learning phase. The main results indicated that the students in the experimental condition (MEL-enhanced) outperformed the children from the control group (MEL-original), although the former group did not spend more time with the learning material than the latter, and that the students in the experimental group valued MEL-enhanced more than the children from the control group valued MEL-original.     

The implementation and evaluation of a mobile self- and peer-assessment system

Recently, more and more researchers have been exploring uses of mobile technology that support new instructional strategies. Based on research findings related to peer and self assessment, this study developed a Mobile Assessment Participation System (MAPS) using Personal Digital Assistants (PDAs) as the platform. In addition, the study proposes an implementation model of the MAPS that should facilitate the effectiveness of self- and peer-assessment in classrooms. The researcher argues that teachers and students can benefit from MAPS in various regards including more flexible assessment arrangement, more efficient use of time, and more opportunities for student reflection on learning and assessment. Thirty-seven students taking teacher-education courses with the researcher participated in this study, and these students employed the MAPS to conduct two-round assessment activities that would help these students assess both their own and one another’s final projects. Both the students’ valid responses in a survey herein and scores obtained from the assessment activities confirmed the benefits of the MAPS and its implementation model. Yet, the students voiced such concerns as the objectivity of peer-assessment and the difficulty of providing constructive feedback, and the correlation analysis indicated a lack of consistency between teacher-grading and student-grading.     

基于HTML5的政府移动OA系统设计与实现

随着3G网络的不断普及和4G网络的兴起,基于智能手机和平板电脑的移动应用异军突起.在电子政务领域,移动OA办公系统同样也引起了一轮新的办公革命,它极大地提升了政府的办公效率和管理水平,本文分析了基于操作系统的原生开发和基于HTML5的开发技术的优缺点,重点介绍了基于HTML5技术的政府移动OA开发中关键技术、主要特点.     

一种牧场配料系统的设计与实现

提出了一种应用于移动Ad Hoc网络的分布式资源接纳控制机制,在目的节点和中间节点部署不同的资源接纳控制模块,能以接近通话或者分组传输的时间间隔适应网络的动态变化,为业务提供较好的QoS保障,并且能够支持多播及接收者异质性。仿真结果表明,添加资源接纳控制机制后,时延、抖动及丢包率分别降低了25.75%,51.76%和24.15%。     

网络存储系统的设计与实现

文章介绍了当前网络存储系统的几种流行模式，并着重描述了具有发展前景的SAN存储系统的管理、控制及实现的原理。结合实际应用阐述了设计构造SAN存储系统的有效方法及采用该技术的优越性。     

云计算环境下智能图书借还终端系统设计与实现

针对传统的图书借还系统只能通过条码扫描,获取信息,一直存在工作效率低、用户信任度下降的问题。提出并设计了一种基于RFID技术的智能图书借还终端系统,该系统利用RFID无线射频识别技术采集馆内图书、读者以及书架等信息,采用天线条码标签对智能图书馆内的图书进行监控,实现对图书借还信息进行终端操作,设计了系统软件,并通过实验进行了对比分析,实验表明对RFID系统的硬件和软件测试对传统条码技术的问题有了相对应的解决,从而达到提高智能图书馆借还书和借还终端系统效率的目的。     

CAN总线智能节点的设计和实现

该文介绍了CAN总线的基本特点和智能节点数字量及开关量输入输出的设计实现,并给出了软件编制的方法。     

The design and implementation of intelligent systems for structural integrity assessment

Recently there have been considerable advances in the development of systems for structural integrity measurement together with the inferential techniques and methods. Many of these systems have used first-generation expert system assumptions, resulting in systems which are incompatible and difficult to adapt or maintain. It is argued that complex intelligent systems can only be developed by a modular approach. Cooperating expert system design methodologies fulfil the design criteria.     

Principles of intelligent learning systems design

One of the possible system approaches to the construction of artificial intelligence (AI) systems is described in this paper. The approach integrates three well-known AI trends: heuristic programming, structural modelling and simulated evolution. The structure of an experimental learning system ELS Y is described. The system is designed in accordance with the proposed principles. The main feature of the system is a dynamic generation of AIS architectures on the basis of means-ends analysis method. An AIS architecture can be subjected to mutation in order to obtain a more intelligent one. Every AI system is capable of self-organization on two levels: the first one formed with an associative computing memory, and the second one with arrangement of knowledge structures.     

基于SIP的智能家庭网络的移动访问实现

随着移动通信技术的发展,智能移动终端将在智能家庭网络中扮演越来越重要的角色,智能设备之间的互操作性的要求也越来越高.在对OSGi(open services gateway initiative)规范研究的基础之上进行了扩展,提出了一种基于SIP(session initiation protocol)的智能家庭网络的移动访问实现来解决智能家庭网络中智能终端的移动性和互操作性.     

The design and implementation of a distributed image understanding system

Computer vision is concerned with extracting information about a scene by analyzing images of that scene. Performing any computer vision task requires an enormous amount of computation. Exploiting parallelism appears to be a promising way to improve the performance of computer vision systems. Past work in this area has focused on applying parallel processing techniques to image-operator level parallelism. In this article, we discuss the parallelism of computer vision in the control level and present a distributed image understanding system (DIUS).In DIUS, control-level parallelism is exploited by a dynamic scheduler. Furthermore, two levels of rules are used in the control mechanism. Meta-rules are concerned mainly with which strategy should be driven and the execution sequence of the system; control rules determine which task needs to be done next. A prototype system has been implemented within a parallel programming environment, Strand, which provides various virtual architectures mapping to either a shared-memory machine, Sequent, or to the Sun network.