Proteus+keil在单片机教学中的应用

分析了单片机传统教学的问题,提出在第一堂课中引入proteus和keil联合仿真的单片机课程教学。Proteus的引入能很好地提高单片机教学效果,让学生能够亲手接触单片机的特性与作用,更加形象、生动的观察单片机的功能与作用,对教学产生积极的影响。极大地节约了教学资源。     

Proteus和Keil软件在单片机项目式教学中的应用

针对单片机项目式教学中出现的问题,提出了将Proteus仿真软件和Keil软件引入到单片机项目式教学中。以"简易温室监控系统"项目为例,详细阐述Proteus软件和Keil软件在单片机课程教学中的使用方法和仿真调试过程。实践证明,该教学方法能激发学生学习的热情,锻炼了学生的创新能力和单片机软硬件综合开发能力,取得了良好的教学效果,是提高单片机教学效率和教学质量的一种有效方法。     

单片机开发板在项目教学方法中的应用

本文针对目前单片机类相关课程的传统教学方式,提出了基于单片机开发板和keil开发软件条件下的单片机项目教学法。教学效果证明,基于单片机开发板和keil开发软件的项目教学法,改善了传统教学方法在单片机软硬件知识学习方面的不足,很好的提升了学生单片机知识水平、实践能力和培养了学生单片机系统分析设计和项目开发能力。     

项目教学法在单片机教学中的应用

文章针对单片机课程教学现状,提出了项目教学法及其在单片机课程中的应用,并结合实例介绍了项目教学法的实施过程及取得的成效.     

Proteus仿真在单片机课程项目式教学中的应用

单片机课程作为工科院校机电类专业的一门技术基础课,具有综合性和实践性强的特点。针对单片机课程在教学中存在的问题,阐明Proteus仿真在项目式教学中的优势,结合项目式教学案例介绍使用Proteus软件进行仿真的过程。     

单片机原理课程项目教学法研究与实践

分析了传统的单片机原理教学中存在的诸多问题,提出了用Proteus软件进行单片机原理项目教学的观点和方法。并介绍了项目教学针对单片机原理内容的实施方法,分析了项目教学的注意事项。     

基于keil4、Proteus和YL-236设备的单片机教学

提出用Proteus仿真软件和keil4软件结合搭建单片机虚拟实验室来仿真教学的观点.有了丰富的理论基础和仿真设计经验之后,学生可借助YL-236设备巩固学习.此教学模式有利于专业教学和实验工作,达到学以致用,以用促学.     

基于Proteus的网上单片机实验室设计与开发

本文在分析《单片机原理与应用技术》课程教学目标与教学标准的基础上,根据实际教学需求,将电路仿真软件应用于单片机课程网上教学中,开发了基于Proteus软件的网上单片机实验环境,重点介绍其仿真环境的建立、实验项目的开发以及教学环节的设计。该实验室以学习者为中心,具有直观、灵活、开放和资源丰富等特点,为单片机远程实验教学提供了一个良好的解决途径,为培养学生的分析设计能力和单片机开发技能提供了一种新方法。     

通过PROTEUS软件实现ICL7135与51单片机串口仿真

本文主要讨论双积分A/D转换器ICL7135与51系列单片机串行接口电路,并在proteus仿真软件下实现A/D数据转换,并给出了相应的仿真电路和软件程序代码。这一仿真实验设计对于从事单片机教学研究和智能仪器仪表开发研制人员提供快捷、便利的仿真实验平台,节省实验初期硬件搭建、缩短研发周期,特别在单片机AD转换教学程序设计中具有一定参考价值。     

比较式项目教学在单片机课程中的应用

为提高学生的单片机结构化程序设计能力,本文将前导PLC课程的教学项目改造成单片机课程教学项目,使单片机课程与PLC课程联系起来,并且在单片机项目教学过程的每个环节都与PLC课程对应项目的各环节进行比较教学。本文以交流电机Y-△的单片机控制项目为例进行简要说明。实践表明,应用比较式项目教学是高职电气类专业单片机课程的有效教学措施。     

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.