影派T3-3113平板电脑评测——兼谈全志A10平板电脑方案

目前,安卓(Android)操作系统已在智能手机上广泛使用,据统计,全球半数以上的智能手机使用的都是谷歌Android操作系统。而平板电脑相对于手机来讲,体积可以设计更大一些、硬件更可以设计更强一些,更能发挥Android操作系统出色的性能,以及享用无数的免费安卓应用软件。     

华为加入开放手机联盟 明年推出基于Android平台的智能手机

华为日前宣布加入开放手机联盟（Open Handset Alliance）,并将于明年推出基于Android（谷歌操作系统）平台的智能手机。自去年11月成立以来,开放手机联盟成员以Android平台为基础,继续推进一种由操作系统、中间件、用户友好界面和应用软件组成的全面整合的移动“软件栈”。     

中国首颗Android系统手机芯片将诞生

Android是谷歌应对Symbian、Windows Mobile等操作系统而开发的智能手机基础系统软件,谷歌在Android项目上和高通、中国移动、HTC（宏达）、T-Mobile结成了战略联盟,可以为终端手机提供操作系统、用户界面以及相应的应用软件。和其它智能操作系统不同的是,谷歌Android是一款基于Linux平台的开源操作系统,从而避开了阻碍市场发展的专利壁垒,是一款完全免费的智能手机平台。     

Android应用软件安全测评方法研究

Android是一种应用广泛、软件兼容性良好的操作系统。Android基于Linux内核,主要应用于触屏移动设备,如智能手机和平板电脑等。随着Android手机的快速发展和大量使用,其安全特性成为研究热点。文中以Android手机应用软件测评技术为主线,根据对实际工作经验的总结,详细分析了Android系统架构、安全机制以及Android手机应用软件在数据存储和数据传输中的安全问题。根据对Android安全机制和风险的分析,提出一种Android手机软件安全测评方法和流程,并简要说明了使用的测评工具软件。     

中式Android 中国联通定制WCDMA手机华为U8220

2009年。Android操作系统大红大紫,多普达（dopod）、三星（SAMSUNG）、摩托罗拉（MOTOROLA）等手机厂商不断推出多款采用Android操作系统的机型。而内地的手机厂商华为（HUAW日）也尝到了这在国内也推出了U8220,作为中国联通的定制机型与消费者见面。     

开奇应用商店为Android普及提供“软通路”

ABI Research近日发布报告显示,2011年第一季度基于Android操作系统的手机出货量达到3000万台,这表明Android已经成为全球主流手机操作系统之一。但是对于国内手机市场来说,迈入智能时代不可能一蹴而     

多普达“最强大”GPhone手机国内首演

10月20日,多普达发布了两款首次搭载dopod Sense和Android操作系统的WCDMA手机多普达A6288（Hero）、A3288。同时多普达也发布了全新的dopod Sense概念。据了解,A6288（Hero）和A5288均采用了Android操作系统平台,是目前国内率先开售的Gphone手机。此次推出的A6288（Hero）拥有强大的硬件配置,被国外媒体称为是当前“最强大的Google手机”,     

Android:一边天堂一边地狱

Android是一种以Linux为基础的开放源代码操作系统,主要使用于便携设备。尚未有统一中文名称,中国大陆地区较多人使用"安卓"或"安致"。Android操作系统最初由AndyRubin开发,最初主要支持手机,2005年由Google收购注资,并组建开放手机联盟开发改良,逐渐扩展到平板电脑及其他领域上。Android的主要竞争对手是苹果公司的iOS以及RIM的Blackberry OS。2011年第一季度,Android在全球的市场份额首次超过塞班系统,跃居全球第一。2012年7月数据显示,Android占据全球智能手机操作系统市场59%的份额,中国市场占有率为76.7%。     

Android 4.0系统七大新功能

谷歌日前推出了代号为"冰激凌三明治"的新一代Android4.0操作系统,这款操作系统做了大量改进,增加了许多新功能,七大新功能尤为瞩目。1.强化软件控制"冰激凌三明治"加强了对所能运行于Android手机上的各种功能的控制,如手机厂商喜欢预装于设备上的所谓"臃肿软件"。这种设置使Android手机用户可以让一些应用失效,删除图标,禁止其运行于Android系统上面,同     

三星第一款Android平台手机SAMSUNG GT-i7500即将上市

三星炙手可热的Android操作系统智能手机GT-i7500即将于6月上市。作为三星进军Android系统平台的第一款手机．GT-i7500也采用了与HTC Magic相同的全触屏设计,没有为手机配备物理键盘。     

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