基于Web的教师信息管理系统的设计与实现

为改善当前高校对教师信息管理的现状,建立全新的教师信息管理模式,实现教师信息管理的系统化和网络化,设计了教师信息管理系统。本文详细介绍了教师信息管理系统所采用的B/S架构模式及关键技术,着重介绍了系统的需求分析和设计。实践证明,该系统操作简便、可靠性高,教学管理人员可快速的查询每位教师的各项信息,提高了学院的管理水平和效率。     

广电设备信息管理系统的设计与应用

介绍广电设备信息管理系统的设计思想及其总体概念,根据有关实例介绍该系统的解决方案与开发过程.     

提高Visual FoxPro程序性能的12个技巧

在用Visual FoxPro设计应用程序时,如何使应用程序发挥最佳性能,是每一个程序设计者十分关注的。介绍了一些提高Visual FoxPro程序性能的技巧。     

企业MIS系统的设计与实现

首先介绍了信息管理系统ＭＩＳ（Ｍａｎａｇｅｍｅｎｔ ｉｎｆｏｒｍａｔｉｏｎ ｙｓｔｅｍ）的基本理论以及企业ＭＩＳ系统的设计问题;然后通过一个实例详细地阐述了使用中文Ｖｉｓｕａｌ ＦｏｘＰｒｏ３．０开发设计企业信息管理系统的过程。     

基于VB6.0和Access数据库的高校学生管理系统的设计

高校的扩招给学生管理带来了新的特点。因此,本文以Visual Basic6.0编程语言和Access数据库为基础,结合新形势下的高校学生管理系统的特点,开发出了高校学生信息管理系统,在对其功能模板介绍的基础上,对其设计的方案、系统安全以及实现方式等进行了探讨。     

数据库在教学信息管理系统中的有效运用

随着信息化的快速发展，教学信息管理系统应运而生，并发挥重要作用。数据库是教学管理系统的核心。本文先对当前数据库常见的几种系统模型作一个简要介绍和优缺点分析，然后以关系型数据库为例，详细介绍了数据库在教学信息管理系统中的有效运用，包括数据库的概念设计和逻辑设计。     

一种新型高校学生信息管理系统的设计与实现

文中首先对高校学生信息管理系统的需求进行了分析,针对需求,基于JAVA语言和SQL Server数据库构建了学生信息管理系统。然后从整体上介绍了该系统的设计,选取了几个典型关键的模板对其功能的实现进行了介绍,最后从10个方面对该系统进行了性能测试,测试结果表明,该系统运行良好,可以实现预定的功能,满足高校学生信息管理的需求。     

物流信息管理系统的分析与设计

介绍物流信息管理系统的分析与设计,实现了对sybase数据库的操作控制及自动化立体仓库库位的优化算法。系统监控组态软件采用WinCC监控中心,数据库部分采用sybase SQL Anywhere,利用先进的数据仓库技术对整个物流系统的信息进行综合处理,通过ODBC接口连接sybase核心数据库,体现了系统的分布式、开放性和信息化。     

客户信息管理系统的设计与实现

介绍客户信息管理系统的设计与实现方法 ,该系统有着较为广泛的参考价值和实用意义。     

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.     

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.     

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.     

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.     

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.