BS结构在现代企业信息管理的应用分析

企业信息系统具有企业信息的共通和交流以及企业管理之类的功能的网络信息系统。当今科技水平的发展迅速,计算机成为当今使用最广泛的现代化工具已深入到各个领域,而且正在成为未来信息社会的重要支柱。如何能有效的管理好企业的信息是一个很重要的问题。在如此的背景下,资源的建设,相关企业的管理方式都在发生重大变化,这改变主要表现为服务平台和企业信息管理发生的变化,企业的管理不能是传统的人工管理、手工操作,需要全面实行计算机管理。     

加强我国政府信息资源开发利用的若干问题

政府信息资源的界定(一)政府信息资源政府信息资源包括政府部门为履行管理国家行政事务的职责而采集、加工、使用的信息资源;政府部门在业务过程中产生和生成的信息资源;由政府投资建设的信息资源以及由政府部门直接管理的信息资源。政府信息资源是一个国家信息资源的主要组成部分。它是一个国家进行政治、经济、科技、军事、文化等活动所必不可少的重要资源,是政府部门、企业单位、公众、个人在社会经济中普遍需要、不可或缺的主要资源。政府信息资源是政府行政管理的基础、科学决策的依据、联系公众的纽带、宏观调控的手段。开发利用好政…     

"863"计划信息领域跨主题重大研究开发项目——中国高速信息示范网

中国高速信息示范网（CAINONet)的研究开发项目是“863”计划的一个跨主题重大项目,旨在自行研制出光交叉连接设备、光分插复用设备、核心路由器和一体化网络管理系统,并在北京建立一个基于IP/DWDM的高速信息示范网,连接北京地区部分重要科研院所与著名高等院校,为以光因特网技术为代表的先进网络技术提供一个试验平台。该项目得到了中国最具优势的科研院所和企业的积极参与和大力支持。本文主要报告该项目的立项背景、主要目标、组织结构、研发任务、取得的进展以及下一步的计划等。     

建设信息产业技术创新体系初探

信息产业技术创新体系是在信息产业领域内，以推动技术创新为目标，以增强企业的技术创新能力为核心，以企业所从事的技术创新活动为主体，主要由企业、研究机构、大学、政府、中介机构等创新要素或环境因素以及其之间的相互作用所形成的复杂系统。信息产业技术创新体系是信息产业技术创新的基本体制架构，对推动信息产业发展具有极其重要的意义。因此，世界主要国家或地区在发展信息产业的过程中，都十分重视信息产业技术创新体系的建设。我国要实现信息产业强国的战略目标，也必须建设和完善信息产业技术创新体系。     

建设信息产业技术创新体系初探

信息产业技术创新体系是在信息产业领域内，以推动技术创新为目标，以增强企业的技术创新能力为核心，以企业所从事的技术创新活动为主体，主要由企业、研究机构、大学、政府、中介机构等创新要素或环境因素以及其之间的相互作用所形成的复杂系统。信息产业技术创新体系是信息产业技术创新的基本体制架构，对推动信息产业发展具有极其重要的意义。因此，世界主要国家或地区在发展信息产业的过程中，都十分重视信息产业技术创新体系的建设。我国要实现信息产业强国的战略目标，也必须建设和完善信息产业技术创新体系。     

企业人事管理系统的设计

该企业人事管理系统采用B/S架构,主要对企业员工的信息以及跟人事相关的工作流程进行集中的管理并建立了一个完善的、强大的员工信息数据库。该数据库是以.NET和SQL SERVER 2005数据库作为开发平台。使用C#设计操作控件和编写操作程序,完成数据输入、修改、存储、调用查询等功能;并使用SQL SERVER 2005数据库形成数据表并最终进行数据存储。     

基于Web通信监理公司OA系统的设计与开发

当下,在这个信息化的时代,到处充满着信息资源,企业内部对信息资源的共享以及企业之间的信息资源的利用成为主要研究和开发的目标,如何得到信息资源以及使用信息资源已经成为企业竞争市场份额的生存之道.因此,企业内部如何对信息资源筛选、传递以及灵活利用成为企业的重点,基于Web技术的OA系统的出现,实现了以上对信息资源的要求,不仅提高了员工的办公效率,而且节省了在系统开发、运行和维护方面的费用.     

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.     

工程建设领域信息系统的实现

工程建设领域项目信息和信用信息系统是一个整合了工程建设项目相关数据以及企业信用信息数据的信息系统。系统包含工程建设领域信誉评价、项目考核、合同履约、黑名单等市场信用记录,整合有关部门和行业信用信息资源,建立综合数据库。该系统是一个集数据采集比对整合的综合系统,应用了多种技术,应用数据挖掘技术将与企业有潜在价值的信息挖掘并与相关的信息比对整合,得到评价企业更有价值的信息,使用LUCENE技术使得搜索效率更高更快。     

广东省专业镇技术创新资源中心网络平台设计

技术创新资源中心网络平台是一个基于云计算的创新信息协同服务平台，系统以信惠搜索、知识挖掘、协同计算等为核心技术，采用sa岱模式，与广东省各个科研机构、高校和专业镇以及企业形成互联共享的信息资源网络。     

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.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.