智能体育教学系统的设计与实现

目前远程教学以及多媒体教学等已被广泛使用在各个学科的教学中,智能化教学方式受到师生的普遍认可,其能为师生提供较大的帮助,并可提高学生的学习兴趣,但其目前仍处于发展阶段。针对目前体育教学以及CAI系统存在的各种不足,依照体育教学的动态性特点,提出一种智能体育教学系统的设计。在应用中可发现,基于知识的智能化体育教学系统的设计,教学灵活,教学不受时间和地点的限制,且能满足不同情况学生需求。     

基于Internet的多媒体教学系统结构

基于网络的多媒体教学系统在学校教学中的应用越来越广泛，但是很多人对系统结构不甚了解。文中从系统物质基础、教学系统支撑平台、学生如何进行学习、如何实际开展教学工作等四个方面来探讨了基于网络的多媒体教学系统的结构组成。     

多媒体技术对体育教学过程的影响

随着信息技术的不断发展,在科学不断进步的今天,实施多媒体式的教学方法在体育教学中所发挥的优势越来越突出。多媒体教学是以计算机和投影仪为中心仪器,采用文字、图像、声音和动画等手段结合的形式实施教学的过程。对教师来说,在体育教学中采用多媒体式的教学方法,不仅可以使教学的形式更加的生动与形象,同时也使现代化教学的手段和科技手段进行了有机的结合;对学习体育的学生来说,在多媒体式的教学活动中,学生对体育在理论知识和动作技术上的理解能力和接受能力也有所增加。本文从多媒体技术和体育教学之间的关系出发,进而对多媒体技术和体育教学之间的影响进行深入的分析和探讨。     

基于模型视图控制器(MVC)的体育教学系统设计

为了解决体育教学受时间、空间限制的问题,也为了给广大师生提供学习与交流的平台,文章结合体育教学的实际需求设计了体育教学系统,采用MVC模式进行框架设计,分层实现系统数据处理逻辑,从用户登录、文件管理、成绩管理、课件发布、系统维护、师生交流等多个方面对教学内容进行梳理与分类,实现自主学习、自由探讨。体育教学系统的应用不仅可以提高学生的学习积极性,也可以达到缓解教学压力、提升教学效率的目的。     

基于P2P流媒体的教学体系结构研究

随着网络通信和多媒体技术的发展,人们对网上音、视频的多媒体教学内容需求日益增长,基于流媒体技术的远程学习是未来人们受教育的新方法。然而流媒体的质量并不能令人满意,传统的网络教学系统大多采用C/S模式,服务器以单播的形式传输媒体流。结合当前流行的对等网络（P2P）技术和流媒体技术,介绍了如何构建基于P2P流媒体技术的远程网络教学系统的问题。结合P2P网络的优点,对系统中流媒体传输进行了改进,从而降低流媒体服务对骨干网的负载,避免网络阻塞。     

教学用多媒体设备在使用中的故障及故障解析和处理

随着我国目前的教学水平不断的提高,多媒体设备在其中得到了越来越广泛的应用,在现代的教学当中,多媒体设备已经成为了进行其不可或缺的教学工具,它成为了我国高校教学当中一种非常普遍的教学方式。对于在教学当中使用多媒体设备教学这种的教学方式来说,它大大地提高了学生的学习兴趣和教学水平,也实现了良好的教学效果。使用多媒体设备教学,在一定程度上推动了教学计划的顺利开展,也有效地提升了学校的教学质量。但是在进行多媒体教学的过程当中,避免不了其故障的发生,针对这些故障要及时地制定解决的方案来对其进行处理。文章针对多媒体教学设备出现的故障以及处理的方法进行了简单的探讨。     

基于五人制足球网上体育教学系统的研究

本文主要分析了当前体育教学及CAI系统的缺陷,提出了新的体育教学系统,通过利用Internet、多媒体以及人工智能等技术,进行网上体育教学,这就是WWW的网上体育教学系统,这种教学系统主要是利用当前发达的互联网技术、先进的多媒体技术把体育教学带入一个新的时代,让体育教学不在拘泥于传统,该系统可打破时空界限,通过互联网随时随地的进行学习,并能根据学生的不同情况自动调整教学策略进行个别化教学。通过互联网,实时的观看最新动作技术和了解技术难点,透过直观的三维动画是教学过程更加形象生动,这种教学形式也容易被学生接受。     

高校体育教学中多媒体网络教学平台的推广分析

随着信息技术的发展,如今多媒体网络教学平台的应用越来越广泛。在高校体育教学中,基于WEB的网络教学平台的设计与开发已越来越成熟,他能够有效帮助高校学生学习体育知识,掌握体育技能。本论文针对高校体育教学中多媒体网络教学平台的推广进行论述,对其基本结构与工作原理以及支撑环境结构进行了介绍。     

浅谈计算机多媒体技术对教学的影响

0　引言随着计算机信息技术的发展 ,计算机在教育领域应用日趋广泛。计算机多媒体技术及其网络教学系统 ,能使以往靠多种设备、技术才能实现的课堂多媒体教学集计算机于一身 ,并能与现代通讯设备形成网络 ,构成全方位、多渠道、交互式的教学系统。多媒体教学系统是一种全新的教学系统 ,它集声音、图像、视频和文字等媒体为一体 ,能产生生动活泼的效果 ,有助于提高学生学习的兴趣和记忆能力 ;同时 ,充分利用多媒体的表现力、参与性、重视力和受控性强的特点 ,既能达到传授知识、开发智力、培养能力又能实现因材施教和个别化教学的目的。1　多…     

智能计算机辅助教学中的数据挖掘应用探析

随着信息技术的快速发展和普及应用,行业信息化发展迅速,高校教育信息化也不例外,比如计算机辅助教学系统。然而传统的计算机辅助教学系统存在诸多不足,无法满足个性化、智能化的教学需要。由于辅助教学系统中包含丰富的资源信息,如何充分挖掘、利用这些有效信息,为教师和学生提供个性化、智能化的服务平台,是智能化辅助教学系统的主要目标。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks