数字信号处理课程虚拟实验室设计

本文设计了一个基于校园网的数字信号处理课程虚拟实验室,该实验室可以通过远程控制为各实验设备单独供电,并通过开关矩阵灵活组合连接实验设备。运行表明虚拟实验室构造简便,结果正确,可以为学生提供一个方便的开放实验室。     

关于制约电视数字化发展的几点思考

数字电视是指节目从摄制、编辑、播出、发射到接收的整个过程都是采用数字化技术实现的。数字电视与现在的模拟电视相比具有很多优势,发展数字电视已是信息时代的必然发展方向和趋势。     

公交电视的发展、局限与前景方向

文章针对数字移动电视播放和收看的现状分析了其及时效性强、内容易获得、强迫收视等特点,以及运营成本居高不下,广告规模有限,对受众权利有所侵犯等局限,提出了最大效用地利用移动数字电视的受众及广告资源的途径。     

U. S. winter migrants' park community attributes: An importance–performance analysis

North American seasonal migrants, who are usually retired, typically live in recreational vehicle/mobile home park communities in the southern U. S. during the winter months. This study examines the importance of specific park characteristics in the park selection process and uses the case of winter migrants in south Texas to demonstrate how parks may use a modified approach of importance–performance analysis and the promoter–detractor methodology to assess how well the parks perform on selected attributes. The analysis of survey responses from 1429 winter Texans categorized attributes based on the attributes' impact range and asymmetrical impact on park recommendation likelihood. Overall, seasonal migrants based their choice of location for their winter home largely on physical appearance (e.g., cleanliness) and affect (i.e., friendliness and caring management). Wireless Internet access and low rates were also of high importance. But park recommendation likelihood varies depending on the migrants' satisfaction with important attributes' performance.     

Unlocking the transformative potential of branchless banking in Indonesia

Branchless banking has the potential to significantly enhance financial inclusion among Indonesia’s large and geographically disparate unbanked population and to connect Indonesia’s micro, small and medium enterprises to the global economy. Why has the branchless-banking revolution not yet materialised? Constrained by regulation, deployments have failed to attract a critical mass of users. Indonesia’s fragmented telecommunications sector has made it difficult for providers to emulate the success stories in other countries, in which dominant providers are competing for the market with a proprietary platform. In Indonesia, it is likely that a considerable degree of interoperability will be required for providers to unleash network effects and attract users. Indonesia’s providers are experimenting in this space. Recognising branchless banking’s potential to accelerate financial inclusion, Bank Indonesia appears committed to improving the regulatory framework. This article identifies the components of an enabling regulatory environment. Success in Indonesia would provide a model for a more widespread uptake of transformative branchless banking.     

高炮随动系统自动测试中正弦机发送频率的确定

在某型高炮随动系统测试中,正弦机的发送频率直接影响着输出信号的平滑度,从而会影响测试的精度。为了避免在正弦机运行过程中,计算耗用过多机时,在正弦机发送之前,先计算出每个位置信号、前馈信号的数值,存放于内存中。本文根据该正弦机信号的特点,分析了几种正弦机角位置信号发送频率方式的优缺点,确定了正弦机发送频率的方式。     

基于FPGA的电梯控制器设计

本文简要介绍了电梯控制系统的设计规则,接着介绍了基于FPGA的电梯控制器的总体设计思想,再分别从数据采集模块、信号存储模块、中央处理模块和显示模块对该系统进行了阐述。通过仿真验证该系统可行且具有较好的稳定性。     

基于手机平台的移动教育模式研究

随着互联网的普及,以WAP、GPRS、3G、Wi-Fi、蓝牙等通信协议为技术支持,以在任何时间任何地点为任何学习者提供任何学习支持为目标的手机移动教育正成为近几年兴起的教育技术研究领域,针对移动教育教育技术领域研究的新热点,提出基于播客技术、UCWEB技术、3G技术的移动教育模式,为基于手机平台的移动教育提供理论基础。     

4G通信的网络结构与关键技术解析

随着3G网络的普及,加深了人们对于更快更好的通信网络需求,4G移动通信的发展迫在眉睫,本文就4G移动通信的发展前景及其特点做出简要介绍。     

浅谈大学校园中“手机文化”的利弊

手机文化日益成为高校校园生活的一道亮丽风景线,慢慢渗透入校园文化,然而它给我们带来便利的同时,也带来了几多无奈,我们如何看待"手机文化"对校园生活的影响。