终端对业务和运营商的影响

详细分析了终端对话音业务和新业务的影响。在分析终端对话音业务的影响时从用户和终端两方面进行了阐述，指明为了进一步提高用户敷和砖络的使用率，运营商在进行话音营销对应逐渐将工作重点适当转向农村市场。也从对个人和行业用户的影响两方面阐明了终端对新业务的影响。     

Terminal velocity of non-spherical particles falling through a Carreau model liquid

A procedure has been proposed for the estimation of the terminal falling velocity of non-spherical particles moving in a Carreau model fluid in the transition flow region. The procedure is based on a modification of the relationship formerly developed for the fall of spherical particles including the particle dynamic shape factor. The suitability of the proposed procedure has been confirmed by good agreement between experimental and calculated terminal falling velocity data. In the experiments, the terminal falling velocity of short cylinders and rectangular prisms in polymer solutions of different measure of shear thinning and elasticity has been measured.     

浅谈Windows终端的应用

介绍在Windows 2000,Windows XP的两种终端应用方案和具体操作.     

Chattering free full-order sliding-mode control

In conventional sliding-mode control systems, the sliding-mode motion is of reduced order. Two main problems hindering the application of the sliding-mode control are the singularity in terminal sliding-mode control systems and the chattering in both the conventional linear sliding-mode and the terminal sliding-mode control systems. This paper proposes a chattering-free full-order terminal-sliding-mode control scheme. Since the derivatives of terms with fractional powers do not appear in the control law, the control singularities are avoided. A continuous control strategy is developed to achieve the chattering free sliding-mode control. During the ideal sliding-mode motion, the systems behave as a desirable full-order dynamics rather than a desirable reduced-order dynamics. A systematic design method of full-order sliding-mode control for nonlinear systems is presented, which allows both the chattering and singularity problems to be resolved. Simulations validate the proposed chattering free full-order sliding-mode control.     

Voidage characteristics and prediction of bed expansion in liquid-solid inverse fluidized bed

Studies on voidage fluctuations, axial voidage profile and bed expansion are carried out by measuring the local void fraction using particles of wide ranging characteristics in liquid-solid inverse fluidized bed. The quality of fluidization is elucidated by the local voidage fluctuations. The RMS voidage fluctuation depicts a maximum with respect to average bed void fraction and increases with increase in Archimedes number. The fluidization quality has been quantified using average normalized RMS voidage fluctuation in terms of Transition number. The axial void fraction is almost uniform throughout the bed except for particles with size distribution. All the literature and present experimental data on bed expansion are unified in terms of Richardson and Zaki equation using experimental terminal velocities. A new correlation is proposed for predicting the wall effect corrected experimental terminal velocities, as a substitute for standard drag equation. The bed expansion data are also predicted using the drift flux model.     

HTML5技术在移动管理驾驶舱中的应用

移动系统平台多样化以及各移动系统开发平台互不兼容,使移动应用开发周期长移植性差。为解决移动应用能够实现一次开发多处运行的问题,提出基于HTML5的移动应用跨平台解决方案。基于HTML5的跨移动平台特性,结合JavaScript、CSS等Web应用开发技术,实现iOS、Android两主流移动系统的跨平台开发,在移动管理驾驶舱系统中验证方案的可行性和实用性。该方案节省开发资源同时又满足移动应用的开发与销售模式。     

基于指纹认证的行车安全系统设计

汽车应用的普及带来汽车安全的隐患,基于指纹认证的行车安全系统可实现对驾驶员信息认证、汽车行驶过程、行驶状况、道路状况和交通信息的实时监控,有效预防汽车行驶的安全问题。详细阐述行车安全系统的功能、系统模块设计、硬件系统设计和软件系统设计,分析汽车终端模块的硬件结构和软件功能实现方法,给出基于VC＋＋的汽车终端功能实现的数据类。通过测试,系统能实时、准确地获取汽车行驶的动态数据,有效实现汽车安全管理。     

基于灰色新陈代谢神经网络的管网末梢水质预测模型研究

针对管网末梢水质环境存在信息不确定、非线性的情况,本文结合灰色预测＂贫信息＂及BP神经网络非线性拟合强的优点,提出了灰色新陈代谢神经网络预测模型。该模型采用灰色新陈代谢GM（1,1）模型对BP网络的输入样本进行预处理,解决了BP网络需要大量学习样本的局限。仿真结果表明,与灰色新陈代谢、BP神经网络相比,灰色新陈代谢神经网络预测精度更高。     

面向网络收益的同步轨道卫星/蜂窝网络垂直切换算法

通过分析同步轨道卫星/蜂窝网络中影响垂直切换的决策参数,考虑终端移动速度,提出一种面向网络收益的垂直切换判决算法NROV。NROV算法基于用户需求对决策参数权重进行设定并对候选网络评分,形成切换请求,然后采用动态规划方法最大化网络收益,获得最终的切换判决。仿真结果表明,相对于传统算法而言,NROV算法能在考虑用户满意度的同时,保证网络收益,提高切换成功率。     

移动群体感知技术研究

移动互联网的不断成熟以及搭载各种传感器的智能终端的广泛应用和普及催生了全新的研究领域,即移动群体感知技术领域。移动群体感知是以人为中心的感知,人在感知过程中扮演着重要的角色,发挥着重要的作用。移动群体感知概念自提出以来,受到了学术界和工业界的广泛关注,移动群体感知技术广泛应用于交通、医疗健康等各个领域以及人们日常生活中的各个方面。首先从移动群体感知概念、感知模式、感知规模及其特性的角度阐述了移动群体感知的内涵;在此基础上,对群体感知技术的应用进行了分类,并且对现有典型的移动群体感知研究项目进行了分析、总结和比较;进而描述了移动群体感知技术向规模化、系统化发展的趋势及面向服务的"端+云"的移动群体感知体系架构;最后重点阐述了移动群体感知在大规模环境下所面临的全新挑战及应对策略。