基于XMPP协议的Android消息推送设计与实现

随着移动互联网的快速发展,消息推送已成为手机端产品信息实时发布和网络营销的一种重要手段。XMPP协议作为Android系统消息推送的主要技术,已经得到了广泛应用。本文介绍了一种基于XMPP协议的Android Pn开源框架的实现模型,将其部署在My SQL数据库和Tomcat服务器下,实现并改进了实时推送消息、自定义消息结构和内容、推送服务开机启动、手机端服务唤醒、发送离线消息等实用技术。     

一种微博融合客户端的设计

随着微博的快速发展,用户需要同时安装来自不同提供商的微博客户端,操作困难,功能繁琐复杂,严重影响用户体验。本应用基于Android系统实现微博融合客户端,可连接两大主流的微博平台,进行信息阅读、发表等操作。目的是增强现有微博客户端的功能,在完成微博客户端核心功能的同时,减轻客户端"重量",增强实用性。     

Android系统下网上跳蚤市场软件的实现

近年来,跳蚤市场在校园生活中越来越流行,开发一款基于Android系统的网上跳蚤市场软件能够为学生提供很大的便利。课题基于Android平台设计一款能够满足学生随时随地购买心仪二手商品的网上跳蚤市场软件。系统包括用户模块、商品模块和用户交流模块。用户模块包括登录、注册和保存用户信息功能。商品模块包括商品的发布、收藏、浏览商品、按条件查找商品、管理已发布商品、管理已收藏商品等功能。在用户交流模块中,实现了商品的留言板功能。客户端的开发使用了Android SDK和Android Studio相结合的开发环境。服务器端使用My SQL+Tomcat作为服务器。运行测试结果表明,系统实现了课题要求的全部功能,用户界面友好易用。     

基于Android的移动学习平台的设计与实现

针对Android移动学习平台存在的界面适应度和操作复杂、缺乏用户反馈机制及学习资源单一等问题,在系统架构和功能上进行优化,设计和实现了一种基于Android系统的智能手机移动学习平台,并对利用智能手机对平台客户端的功能进行了测试。     

分析Android移动开发优化策略

随着科技的不断发展,智能手机越来越普及,现在智能手机的功能变得更加强大,其不仅可以发信息、打电话,而且还能够代替电脑功能。我国Android系统手机数量庞大,为了提升用户体验度,应当对Android系统的开发进行分析,进行合理优化。如何更好的完成Android移动开发长期以来都是开发人员研究的一项内容。下面,从而合理应用本地方法、静态方法的应用、避免构建对象几个方便入手,实现对Android移动开发的优化,希望对相关工作人员可以有所帮助。     

Android开源手机与知识产权保护浅析

"开源操作系统越来越广泛地被应用于手机。其中,谷歌公司的Android开源手机操作系统正在得到市场的普遍认可。本文介绍了开源系统、软件的背景和特点,简述了Android系统平台的架构特点和软件开发模式,分析了Android平台涉及的知识产权相关问题,阐述了基于Android系统的软件开发模式和著作权法、合同法对软件的保护。本文最后分析了因为开源软件的专利权导致的公司之间和来自相同开发社区内部的矛盾,在结论部分总结了知识产权法律对Android开源软件的著作权保护。"     

"SG186"营销业务应用系统用户服务信息综合发布系统的推广应用

"SG186"营销业务应用用户服务信息综合发布系统的推广应用(以下简称综合发布系统)是省公司拓展主动服务的一个重要手段,是营销系统提供数据支撑、与综合发布信息实时交互;供用电基础资料以及电费资信等信息方便客户快捷查询、传送的功能.将实现供用双方多渠道、多平台的信息实时交互,解决了以往人工操作的系统资源占用、操作繁杂、用户等候时间过长的问题.综合发布系统的推广应用,将确保与营销业务应用系统数据对接的及时性、准确性和安全性,进一步提升公司的优质服务水平、提高电费回收率.     

基于Unity3D的简易网络消除类手游设计

传统消除类游戏多以闯关模式给玩家带来游戏体验,假设消除类游戏也能实现类似网络竞技的模式,将能给玩家带来新的游戏体验。游戏软件是基于Android平台的简易手游,主要采用Unity3D作为开发工具,以C#为开发语言,以Bmob云作为后端云服务器,以CCUnity插件作为辅助开发插件,以Android SDK、JDK作为辅助环境软件,以PhotoShop作为图片处理软件,以SQLite作为数据库对消除游戏进行实现。系统将分为用户信息模块、经典玩法对战、疯狂玩法对战、交换玩法对战等四个模块。游戏整体将结合MVC模式,单例模式等常用设计模式,确保游戏的灵活性,稳定性,便捷性和安全性,使游戏具有良好的可维护性。经过测试,游戏软件能在Android4.1以上的不同分辨率手机屏幕运行。     

基于Android的YOYO学生手机助手软件的设计与实现

Android系统的手机发展前景较好,它是目前市场占有率较高的智能手机操作系统。学生作为Android手机的一部分消费群体,开发一个适用于学生使用相关软件极其有用。针对学生的日常需求,YOYO学生助手软件包括记事本、日记本、课程表等功能,具有方便实用、操作简单、界面简洁等功能。     

基于Android的沈工就业助手的设计与实现

伴随着大学院校的扩招,每年大学毕业生的人数也在不断增加,这也就造成了大学生就业难的问题。本文主要介绍了应用Android技术,设计并实现了沈工就业小助手。系统功能包括:公司可以发布招聘信息,搜索人才;学生可以用系统进行职业生涯规划、笔试面试模拟、投简历应聘等;学校可以进行就业指导和就业信息统计,让学生、学校、企业随时随地的掌控就业信息。该系统涉及Android程序开发技术、Web Service访问技术。通过测试,系统在Android4.0及以上版本的移动终端平台下运行稳定,达到了预期的设计目标,有一定的实用价值。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese     

More than Skin Deep – Understand Skin Biology by Means of Dermatogenomics

<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.