Android移动学习平台客户端的搭建

移动学习已经越来越成为人们生活中的一个重要的学习手段,基于Android系统的高校校园通作为一种移动学习的工具应运而生.移动端可以实现用户登录、个人应用、学院应用、及其它等功能.利用Android布局技术实现各个模块的页面搭建.     

移动终端校园踪迹分析系统研究

随着智能手机的普及,以及校园地理信息的庞大,实现手机与校园信息的对接,为学生提供一些实用的服务具有重要意义。针对这一需求,利用Android的智能终端、百度地图开发和校园地理信息,基于网络实现了一种个性化校园服务系统。客户端实现了定位设置、个性化校园设置、校园踪迹记录、系统踪迹分析等功能,服务器端采用MVC模式实现智能查询功能。通过测试该系统具有操作简单、实用性强、功能完善等优点,此外该系统还可以应用到其他校园,具有可扩展性。     

基于Android的移动校园客户端的研究与实现

研究了Android平台的架构及相关开发技术,利用Android与Web开发结合的设计方式,使用HTML5+jQuery Mobile、MySQL、SQlite等技术,设计并实现了一款基于Android平台的移动校园客户端。通过客户端、本地数据和Web服务器端与数据库之间的信息交互和传递,提高了校园信息的实时传播效率,完善校园移动化平台的建设。     

基于Android的大学英语移动学习平台的设计与实现

随着校园远程教育技术、数字化学习等的不断发展,移动学习作为校园新型的学习方式,以移动计算与数字化技术为基础,正在不断的推广和应用。本文针对Android系统的使用率高的特点,开发出基于Android系统的大学英语移动学习平台,提出平台开发的原则和系统需求,并给出了系统的测试结果。     

基于Android的大学英语移动学习平台的设计与实现

随着校园远程教育技术、数字化学习等的不断发展,移动学习作为校园新型的学习方式,以移动计算与数字化技术为基础,正在不断的推广和应用。本文针对Android系统的使用率高的特点,开发出基于Android系统的大学英语移动学习平台,提出平台开发的原则和系统需求,并给出了系统的测试结果。     

基于Android的校园导航系统的设计与实现

为使大学生能够快速熟悉校园环境,迅速适应大学生活,开发了基于Android的校园导航系统.该系统以新疆大学本部校园为例,在研究校园用户对地图服务需求的基础上提出了相应的功能.开发中充分利用了百度地图API接口,实现了校内地点搜索、位置提醒等功能,并利用FLOYD算法实现了路径规划.     

基于Android平台的校车管理系统设计与实现

针对目前国内高校校园规模大、多校区运行的交通问题,设计实现了基于Android平台的校车管理系统,系统采用Android开发平台、利用GPS获取位置信息结合百度地图显示校车的实时轨迹,通过校车信息查询管理和系统用户的信息管理模块,实现校车的管理;通过校车的实时位置信息及历史运行轨迹,实现校车的监控.测试结果表明系统运行稳定可靠,具有较强的实用性和良好的扩展性.     

基于Qt on Android平台的空气质量监测系统手机客户端设计

利用Qt on Android平台设计出了一种针对空气质量监测系统的Android手机客户端,该客户端实现了手机与服务器的信息交互,使得用户可以通过手机方便快捷的查询选定监测端当前的空气质量数据,实现了室内环境监测的网络化。同时为C/C++程序员在Android平台开发APP提供了范例。     

基于Android平台的学生社交网络系统设计与实现

学生对社交网络系统在校园学习、工作与生活等不同方面有着个性化的需求。为满足这种需求,构建基于Android平台的学生社交网络系统的移动应用,服务端是一套基于ASP.NET Web API技术的开放接口,根据学生所在组织不同,分为校园模块、班级模块和群组模块,实现社交网络系统的基本功能,包括登录、信息查询、修改、浏览所在群组动态、共享文件、管理用户等。     

基于Android平台校园信息发布系统

目前,校园信息发布系统已成为各大高校信息发布的主要载体,而移动网络终端的普及使得手机（尤其是智能手机）成为高校学生中信息获得的最主要形式。利用Android智能手机平台的高效与智能的特点实现校园信息发布实现了信惠发布的同步化,即时化以及便捷化,在降低了信息发布系统平台的繁杂程度和实现成本的同时,增加了信息发布的即时性和便捷性,从而推动了信息化校园的建设,进一步完善了校园信息发布系统。     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

Complete approach to automatic identification and sub-pixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.     

社长序言（英文）

正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta-     

Call for Papers

正Introduction Jointly sponsored by the China Institute of Communications(CIC)and the IEEE Communications Society(IEEE ComSoc)since the year 2013,China Communications,currently,is aiming to gradually realise the transition from journal to magazine content and style.     

INTEGRATION OF OPTICAL AND WIRELESS NETWORKS

正For a long time,optical and wireless systems/net-works are developed in separate communities witha few attempts for in-depth convergence.In fact,it prom-ises many advantages to combine the optical and wire-less technologies in the levels of systems and networks.Recently,both academia and industry have made manyefforts to enter a new phase of development to take op-tical and wireless systems as fully integrated networks.To provide high bandwidth and reliable service for bothfixed and mobile users,a well-designed network must     

Call for Papers—Feature Topic,Vol.12,No.3,2015

正Smart Grid Communications The electric power industry is undergoing profound changes as the industry aims to capture the promise of a smart grid for a sustainable energy future.Enabled by the advanced sensing devices such as Phasor Measurement Units(PMUs),increasingly powerful