用VB开发电子技术课程CAI课件

本文说明了用VISUALBASIC开发并制作电子技术课程CAI课件的过程。阐述了开发并制作电子技术课程计算机辅助教学（CAI）课件的一些要点,特别指出了剧本的编写、动画的制作、多媒体的应用在课件制作中的重要性,还列出了一些制作实例。     

CAI软件在高频电子技术中的开发及其应用

在对高频电子技术这一基础课程进行教学工作时运用到CAI软件实现课件开发与应用,使教师在教学工作上更加的深化,从而有利于提高学生对高频电子技术内涵与实质的掌握。因此,本文主要基于CAI软件对高频电子技术这一基础课程的课件开发与运用进行浅论,以期能为我国相关教学工作提供一份参考资料。     

多媒体CAI课件的设计与开发

高职《化学实验技术基础》多媒体CAI课件作为教育部100个课题项目之一,是我校为了配合面向21世纪的高职教学改革需要开发研制的。本文主要介绍开发《化学实验技术基础》CAI课件的一些原则和经验,以期引起讨论,进一步提高开发水平。     

编写电工与电子技术实验CAI课件稿本的体会

文章针对电工与电子技术实验CAI课件稿本，谈了编写思路与体会。     

《汇编语言程序设计》CAI课件开发与制作

本文介绍《汇编语言程序设计》CAI课件开发与研制的思路，以及对多媒体辅助教学方式在汇编语言程序设计课程中应用的探讨。     

多媒体软件开发平台的设计

课件的开发是计算机辅助教学发展和普及的一个瓶颈问题。研究开发课件写作系统是提高课件生产效率和改善课件质量的有效途径之一。多媒体课件写作系统将多媒体技术与计算机辅助教学应用相结合,为广大课件作者提供了一个简捷高效的课件写作环境。本文首先讨论了多媒体软件在我国的应用状况及开发CAI软件的可能性,然后简单介绍了我们设计开发的。北航多媒体课件写作系统BUAA-MCAS的结构和总体框架,最后介绍了本系统的特点并对其今后的工作做了展望。     

采用非编程方法开发电路及磁路CAI课件

为了探讨非计算机专业的技术教育人员如何应用非编程方法开发各自专业课程的CAI课件，本文结合“电路及磁路”CAI课件的开发实践，简要介绍了CAI课件创作工具的选择、脚本的编写，并以各种电量曲线的模拟、各种相量图的动态模拟演示实验三种类型的制作为例，详细介绍了具体制作步骤，为非计算机专业人员采用非编程方法开发CAI课件进行了有意义的探索。     

模拟电子技术基础课程多媒体课件的设计原则

结合国家九五科技攻关课题“模拟电子技术基础课程教学辅助系统”的研制,针对计算机辅助教学实施过程中的一些问题,探讨了对CAI教学的思想基础,课件的制作原则,多媒体授课模式的设计等问题提出了几个应注意的问题和讲课时应遵循的原则。     

电力电子系统CAI课件的开发与应用

以电力电子系统教学为研究对象,利用计算机交互和多媒体技术开发出电力电子系统CAI课件。介绍了课件的开发过程及应用效果,说明了课件具有课堂演示、实验仿真,系统分析计算、科研和设计等功能。教学实践表明：该课件界面友好、互动性强．利用此课件可改善教学手段,丰富教学内容。     

软件工程原理在多媒体课件开发中的应用

随着多媒体技术的快速发展,CAI课件在现代教学中占据越来越重要的位置,课件的开发也逐渐受到重视。课件开发遵循软件开发一般规律,将软件工程原理应用于多媒体课件开发可以有效提高课件开发效率,促进多媒体课件开发的专业化和标准化,制作出更多高效优质的多媒体课件。     

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.