“计算机组成原理”设计性实践教学模式研究

本文阐述了"计算机组成原理"设计性实验教学的重要性,对设计性实验教学的目的和基本特征进行了归纳,对"计算机组成原理"设计性实验教学的现状进行了调查,对存在的问题进行了较深入的分析;在此基础上.对组成原理设计性实验的教学模式进行了研究,对设计性实验的体系进行了初步设计,并对"计算机组成原理"设计性实验的实施方法进行了探讨.     

通信大屏幕监控室建筑设计

分析通信大屏幕监控室的组成、功能；论证其合理的位置和视线设计。提出了通信大屏幕监控室组成、选址建议和视线设计、设备布置的技术参数推荐值。介绍了避免大屏幕反光的措施。     

计算机组成系统实验的改革与实践

本文根据“计算机组成系统实验“的教学现状及存在的问题,提出了一个利用MAX plusⅡ软件和EDA实验设备为开发平台,综合运用数字逻辑、汇编语言程序设计、计算机组成原理、计算机系统结构、VHDL程序设计、EDA技术等多门课程的知识进行流水线微处理器软硬件设计的方法。通过实践,不仅让学生掌握了计算机组成与系统结构课程中的核心内容,学会了专用流水线微处理器的设计过程和关键技术,而且提高了学生的知识综合运用能力和实践动手能力。     

输电线路杆塔倾斜在线监测研究及应用

本文探讨了输电线路杆塔倾斜监测问题,从监测系统的组成,硬件系统的构造设计等角度,探讨了监测系统的组成,以及相关的硬件选型等。重点针对输电线路杆塔在线监测系统的总体构架、前端数据处理部分硬件设计选型,数据传输部分的硬件设计选型进行了研究。     

PE—NET专用数据库系统的设计

本文讨论了PE-NET专用数据库系统的设计问题,重点对设计要求和数据库系统组成进行了论述。     

基于STi7162的高清机顶盒设计

设计了一种基于STi7162芯片的低成本高清机顶盒,介绍了机顶盒的基本硬件组成、存储子系统和外围接口设计,对机顶盒软件系统架构也进行了简单说明。对设计的基于双Loader的机顶盒软件升级方案进行了重点介绍,详细介绍了升级方案的组成、Flash分区设计、升级条件检测和数据更新过程。实际测试结果表明,所设计的升级方案稳定可靠,可满足复杂的用户升级环境需求。     

小型智能化固体绿光血疗仪的设计与研制

给出了智能小型团体绿光血疗仪的整机组成，分析了各组成单元的设计思想与结构特性，给出了控制系统的软件流程。     

IC卡税务电话申报终端系统硬件部分设计

围绕IC卡税务电话申报终端的设计，介绍了其硬件组成和各部分功能。组成包括：显示部分，控制部分，输入部分，存储部分及信号传输通道，并且对每部分的器件选择和设计进行了详细说明。     

综合布线系统设计

介绍了综合布线系统的组成；系统的设计目标和设计等级；系统采用的设备及材料；着重探讨了综合布线系统的设计，最后给出了设计的实例。     

近程防御系统组成单元测试软件设计

近程防御系统是舰艇自卫武器的重要组成部分,防御系统各组成单元的性能好坏决定了防御系统的反应能力、精度以及可靠性。在对近程防御系统组成和功能的研究分析基础上,文中设计开发了一个近程防御系统组成单元测试软件,给出了软件的主要功能、模块划分和运行流程设计,对网络通信、报文处理、系统检查、报告生成等关键技术进行了详细介绍,在VisualC＋＋6.0平台下应用MFC编程实现了该软件的设计。     

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.     

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.     

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.     

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