军械装备保障模拟训练系统数据集成研究

现行的军械装备保障模拟训练系统的后台数据库多种多样,数据存储的格式和为前台提供的服务方式不尽相同,致使信息在不同部门和系统之间流通困难,分散的系统很难促进军械装备保障能力快速提高。介绍了一种数据集成模式——基于数据仓库的数据集成。采用该数据集成模式,可以屏蔽各种数据库中数据存储的差异,解决模拟训练分系统数据共享和交换的问题,实现分系统数据的互联互通,为实现军械装备保障模拟训练系统集成提供数据保障。     

妇幼系统与医院信息系统数据共享方案及实现

目的:实现妇幼系统与医院信息系统间数据交互和信息共享.方法:以医院信息系统后台数据库oracle为基础,通过oracle提供的HSODBC异构数据连接方式,连接妇幼系统后台数据库PostgreSQL,并创建相应交互事务处理过程.结果:成功实现妇幼系统与医院信息管理系统数据共享及交互,取得良好效果.结论:本接口方案设计合理,切实可行.     

航材需求量预测应用系统设计

针对现存人工系统的不足,在航材需求预测有关内容的基础上,进行了需求量预测应用系统的初步设计。文章简要介绍了开发飞机航材需求量预测应用系统的软件工具,对应用系统基本框架、业务流程做了分析和设计,将飞机航材需求量预测应用系统划分为几个功能模块并设计了软件数据库,并对开发的功能模块做了详细说明。该系统界面友好,检索方便,并能为航材的统计、管理与预测提供有力的支持,对应用于航材保障具有一定的实用价值。     

基于B/S结构的成教学生信息管理系统的设计

成教学生信息管理系统实现了学校成教学生信息的优化管理.通过设计一种WEB数据库访问方案,实现了对后端数据库的高效访问;并且对管理信息系统安全性也进行了研究,提出了管理信息系统自建用户权限体系模型,从应用系统层将数据库对象和应用系统中的对象操作权限灵活地赋予用户.系统具有界面友好、交互能力强、操作方便、实用性强等特点.     

基于XML的异构数据集成模式的研究

随着信息技术的发展,任何一个独立单位都有可能成为一个异构的数据源.为实现企业异构数据库问信息的共享和集成,对数据集成的原理以及主要技术进行了研究,重点分析了XML与数据库之间的映射、XML文档存储模式、将XML查询转化为SQL的查询转换问题以及如何将关系数据发布为XML文档,并提出了相应的解决方法.该方案简单易行,保证了各系统仍然按照原来的方式运行,只需要进行信息交换时通过转换接口把本地数据库数据转换成XML文档即可.     

智慧城市跨系统信息交互方法研究

信息交互是城市管理中的一项重要要求。当前,城市中的信息系统间壁垒严重,难以实现信息共享与协同,这种情况严重阻碍了智慧城市的发展。本文研究了智慧城市跨系统信息交互的方法,将信息交互划分为三类基本场景,给出信息交互过程中数据接口、流程的相关要求。     

基于Oracle RAC的校园网数据库集群系统设计与实现

高校数据中心对各类异构的业务系统进行整合,实现了数据的共享与集成,为了保障数据的有效性和一致性,需要建立具有高性能、高可靠性的数据库集群系统。结合西安邮电大学校园网实例,分析了Oracle RAC的运行机制与关键技术,利用其Failover和Load Blance节点进行了部署和配置。经过实际运行,这种双机数据库集群模式运行状态稳定,能够有效解决高并发访问情况下的单点瓶颈问题。     

基于无接触IC卡的电视制作机房设备管理系统

介绍了一种基于无接触IC卡的电视制作机房设备管理系统,其中主控、分控子系统采用了分级设计方案,可相对独立运行并通过SQL server 2000数据库平台实现数据和信息的网络交互与共享。     

智能电网信息安全交互模型及关键技术研究

互动化是智能电网有别于传统电网的本质特征,而互动化的本质是信息的交互.所以,信息交互是智能电网基础功能实现的重要前提.一方面,外部智能终端与内部业务系统之间的纵向信息交互,可以实现信息的实时采集和电网运行状态的及时调整;另一方面,不同业务系统之间的横向信息交互,更有利于信息的及时共享,为科学决策提供依据.信息交互使得智能电网的信息网络和电力网络融为一体.信息网络的安全直接关系智能电网的安全保障.所以,信息的安全交互是业务系统正常运行的前提,保障信息的安全交互是智能电网建设的重要课题.     

基于大数据处理技术的界面交互设计研究

为了提高界面的信息交互和数据处理能力,提出基于大数据处理技术的界面交互设计方法。构建界面交互系统的数据库,采用过程约束的层次式结构设计方法进行界面信息交互和大数据融合处理,采用模糊聚类方法进行界面检索数据库的信息聚类。在Linux内核源码控制下进行界面的程序调度和交叉编译,界面的交互设计系统主要包括进程管理、程序控制和内源文件管理等模块,结合大数据处理技术,实现界面交互系统优化设计。系统测试结果表明,设计的界面交互系统具有很好的大数据信息处理和调度能力,数据的召回性较好。     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Nanoimprint Lithography -A Next Generation High Volume Lithography Technique

IntroductionNanoimprint Lithography is a well-acknowl-edged low cost, high resolution, large area pattern-ing process. It includes the most promising methods,high-pressure hot embossing lithography (HEL) [2],UV-cured imprinting (UV-NIL) [3] and micro contactprinting (m-CP, MCP) [4]. Curing of the imprintedstructures is either done by subsequent UV-lightexposure in the case of UV-NIL or by cooling downbelow the glass transition temperature of the ther-moplastic material in case of HEL…     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

Influence of PVK ： NPB hole transporting layer on the characteristics of organic light-emitting devices

A doping system consisting of NPB and PVK is employed as a composite hole transporting layer （CHTL）. By adjusting the component ratio of the doping system, a series of devices with different concentration proportion of PVK ： NPB are constracted. The result shows that doping concentration of NPB enhances the competence of hole transporting ability, and modifies the recombination region of charge as well as affects the surface morphology of doped film. Optimum device with a maximum brightness of 7852 cd/m^2 and a power efficiency of 1.75 lm/W has been obtained by choosing a concentration proportion of PVK ： NPB at 1：3.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.     

Analysis of error performance on Turbo coded FDPIM

Due to variable symbol length of digital pulse interval modulation（DPIM）, it is difficult to analyze the error performances of Turbo coded DPIM. To solve this problem, a fixed-length digital pulse interval modulation（FDPIM） method is provided. The FDPIM modulation structure is introduced. The packet error rates of uncoded FDPIM are analyzed and compared with that of DPIM. Bit error rates of Turbo coded FDPIM are simulated based on three kinds of analytical models under weak turbulence channel. The results show that packet error rate of uncoded FDPIM is inferior to that of uncoded DPIM. However, FDPIM is easy to be implemented and easy to be combined, with Turbo code for soft-decision because of its fixed length. Besides, the introduction of Turbo code in this modulation can decrease the average power about 10 dBm, which means that it can improve the error performance of the system effectively.     

A method for calculating the center position of collimated light

It is a key problem to accurately calculate beam spots＇ center of measuring the warp by using a collimated laser. A new method, named double geometrical center method （DGCM）, is put forward for the first time. In this method, a plane wave perpendicularly irradiates an aperture stop, and a charge couple device （CCD） is employed to receive the diffraction-beam spots, then the geometrical centers of the fast and the second diffraction-beam spots are calculated respectively, and their mean value is regarded as the center of datum beam. In face of such adverse instances as laser intension distributing defectively, part of the image being saturated, this method can still work well. What＇s more, this method can detect whether an unacceptable error exits in the courses of image receiving, processing and calculating. The experimental results indicate the precision of this method is high.     

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.