实时水情信息查询系统的设计与实现

实时水情信息查询系统是一个基于Windows NT和SQL Server7.0的多用户的网络信息查询系统。系统实现了实时水情信息的查询与监视，为我省水情工作提供了方便简单的网络化查询平台。介绍系统的总体结构设计、系统功能及系统的技术特点。     

小区信息综合查询系统的设计与实现

小区信息综合查询系统是大连分公司自主研发的信息查询工具,该系统以网页的形式进行访问,可通过小区名、小区号、网元号、CGI等信息进行查询,查询结果包含了频率信息、硬件信息、性能信息、告警信息、干扰信息和直放站信息等常用数据。     

基于visual FoxPro的支教教师管理系统

本系统针对支教教师信息管理研发的信息管理系统.系统运用visual FoxPro6.0设计,用户界面简洁,系统整体方便实用、操作简单,具有信息查询、信息更新等功能.本系统录入支教教师、支教学校的基本信息,基本实现了对于支教教师信息查询的准确、快捷.大大增强了信息查询工作的可靠度,提高了信息管理的效率.     

轨道交通乘客信息查询系统的技术实现

针对目前城市轨道交通乘客信息查询系统的应用现状,文章应用成熟的计算机技术、网络技术及数据库技术,设计开发了一整套用于乘客自助或互动查询轨道交通相关及车站周边信息的智能化系统。文章重点讨论了系统的总体架构、地铁优先换乘、静态资源下载、GIS查询、交通卡查询、交通路径查询和运营规章等信息的技术实现,并通过实际系统开发验证了可行性。     

基于微信公众平台的学生信息服务系统开发

本文研究和分析了腾讯公司微信公众平台开发模式的第三方接口,通过调研某高职院校学生信息查询需求,结合后台程序,完成了一款学生信息服务系统的开发,并将微信应用作为系统的客户端,提供了上课地点查询、成绩查询、教师信息查询、课程信息查询以及心情反馈等功能,本文研究是作为移动互联网手机应用的一项探索和尝试。     

集装箱码头语音查询系统的开发

传统的集装箱码头信息查询服务是通过面对面、电话咨询以及通过互联查询,效率不高,也不便于咨询24小时服务。为方便拖车司机和报关员等查询集装箱的状态,开发设计一种新型的自动语音查询系统服务,介绍了该系统的设计方法,通过建立计算机电话集成和电话服务系统平台、语音文件库等,构建了集装箱信息查询系统,为客户提供自动语音引导和查询功能。     

海量图书检索信息的快速查询系统优化设计研究

以往依据关键词的检索方法,在对海量图书检索信息进行查询过程中,无法满足海量信息的大批量检索需求,存在查询效率低和误差高的缺陷。因此,设计基于分布式架构的海量图书检索信息的快速查询系统,系统中的各组件通过并行数据库和分布式存储实现交互。该系统的功能模块包括用户管理模块、数据抽取模块、索引创建模块、文本查询模块及索引检索模块。分析了系统各功能模块的设计和实现过程,这些功能模块共同对外提供图书信息的快速查询服务。实验结果表明,所设计系统可实现海量图书检索信息的快速、精确查询,并且具有较高的索引创建和索引检索性能。     

基于云计算的电子档案辅助信息查询系统设计

采用传统系统无法对辅助信息进行精准查询,导致系统无法满足人们需求,为了解决该问题,提出基于云计算的电子档案辅助信息查询系统设计。根据系统总体架构,以云计算环境为中心,设计信息存储器结构,使信息转化为内存形式,可直接被CPU访问。针对某些信息存储历史记录,设计分析处理模块接口电路,保证输入电流和输出电流具有规律性,可恢复休眠文件。根据信息分析处理结果,设计信息查询模块,保证系统设计的安全性。根据查询模块软件功能,结合档案录入流程,设计数据中心存储机制,采用面向分布式存储数据与HBase数据库,开发分布式系统查询项目,由此完成系统设计。通过实验对比结果可知,该系统最高查询精准性为98%,实现了电子档案辅助信息的高效查询。     

基于J2EE的业务信息智能查询系统设计

传统的业务信息查询系统在使用中存在检索效率低、适用性差等问题,为解决相关问题,开展基于J2EE的业务信息智能查询系统设计研究。绘制系统硬件结构图,选择华为OceanStor企业开发的FS1980-10B型号的设备作为系统主要硬件设备;在系统硬件设备的支撑下,通过交互数据源的方式,构建数据有效交互模式;确保业务信息在系统内呈现交互状态后,对业务信息数据库进行并发控制设计;为了提供终端操作用户更加便利的查询环境,提出针对业务信息的模糊查询方式,优化系统统计功能,实现对业务信息系统的设计。系统测试结果表明,设计的业务信息智能查询系统,适用性更强,可以实现在不同操作环境中为终端用户提供更加优质的查询服务。     

基于Java图书查询系统的设计及实现

针对多种图书查询系统的优缺点,研究了面向对象的网络编程语言Java的网络类库文件,利用Socket套接字实现图书信息查询系统的设计。依据网络编程方法和数据库特性,给出了实现图书信息查询系统的方法,设计过程中的关键技术和开发中需要注意的问题,以及数据库的驱动和连接方法。最后给出服务器端和客户端核心代码作为参考。与其他查询系统比较,该系统更加方便和快捷。     

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.     

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.     

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