基于学科竞赛的C语言程序设计课程教学改革

学科竞赛是体现学生专业知识和创新实践能力的赛事,是校内课堂教学的拓展延伸,也是专业人才培养的重要途径之一。文中以C语言程序设计课程为例,探讨了当前的教学困境,并结合学科竞赛,对课程教学内容、课程实践环节、教学方法和课程评价体系进行了改革。基于学科竞赛的课程改革,实现了以学生为主、以赛促学、以赛促教的教学理念,激发了学生的学习兴趣,提高了教学质量。     

基于Proteus和Keil的单片机实验教学改革

本文分析了目前单片机实验教学中存在的主要问题,提出一种基于"Proteus+ Keil+单片机开发板+学科竞赛"的教学模式.该模式将EDA仿真、电路制作与学科竞赛有机的结合起来,注重实践和创新.首先通过Proteus仿真和基于开发板的实际电路设计制作,让学生掌握基本的设计方法和技能.最后通过电子设计竞赛,培养学生的创新能力、合作精神,检验教学效果并反馈,促进教学质量的提高.该模式提高了学生学习的热情,较好地培养了学生的单片机综合应用能力、创新能力和协作精神.     

基于电子设计竞赛的实践教学改革

我校以"培养学生的技能,提升教学质量"为宗旨,积极构建并实践了常规教学和学科竞赛相结合的实践教学模式。实践表明,该模式促进了学生的创新能力和科研能力的提高,并极大地促进了教学改革的进展。分析应用电子类各专业课和实践课程教学的基本情况,指出教学过程中存在的主要问题,提出基于电子设计竞赛的综合实践教学改革的思路及实施方法,使学生有很大收获,收到良好的效果。     

学生参与电气人才创新能力培养的探索

基于“以学生为本”的OBE教育理念，本文对电气人才创新能力培养进行了探索。整个过程将专业课程体系契合学业规划以明确学生学习目标；学生参与理论、实践教学和平台搭建，在夯实其理论知识的同时丰富教学资源；在创新考核中采用“螺旋递进式”的师生互动模式，全程培养学生自主的创新能力。多年实践探索表明学生在课程实践、学科竞赛、论文发表和申报专利等方面的创新能力得到显著提升。     

“卓越工程师教育培养计划”下“通信原理”教学改革与探索

本文针对目前高校＂通信原理＂课程教学过程中存在的问题,从教学内容和教学方法入手,研究适应＂卓越工程师教育培养计划＂培养目标和要求的课程改革方案,以培养高级应用型人才为目标,以精讲理论知识为核心,校内外实践教学与理论教学有机结合,着重培养学生的动手实践能力和科学研究能力,紧紧围绕原理分析、系统应用、创新科技竞赛和工程实践的环节开展教学活动。实践证明,学生在掌握基础理论知识的同时,具有较强的实验分析能力;以科技竞赛和企业实践经验促进教学改革,切实提高了学生的理论水平和实践能力,收到了良好的教学效果。     

自动化专业电力电子技术课程综合实践的探索

“电力电子技术”是一门基于控制理论,电子学和电气工程等学科的交叉科学技术,其工程实践能力的培养离不开与控制理论等课程的深入融合。对自动化专业学生面向工程应用的课程融合教学理论进行了探索,建立了电力电子技术综合实践课程教学实验平台并提出了教学改革方法。多课程融合、面向应用的实践教学有助于培养学生学习兴趣,深化课程知识掌握,提高顶层设计和解决工程实际问题的能力。     

自动化专业“电力电子技术”课程综合实践的探索

“电力电子技术”是一门基于控制理论、电子学和电气工程等学科的交叉科学技术，其工程实践能力的培养离不开与控制理论等课程的深入融合。对自动化专业学生面向工程应用的课程融合教学理论进行了探索，建立了电力电子技术综合实践课程教学实验平台并提出了教学改革方法。多课程融合、面向应用的实践教学有助于培养学生学习兴趣，深化课程知识掌握，提高顶层设计和解决工程实际问题的能力。     

我校“单片机”课程的教学改革

本文介绍了我校"单片机"课程教学中进行实践和创新能力培养的若干教改措施。其涉及理论教学、实验教学、课程设计、考核方式与学科竞赛等多个方面,着力培养学生的创新意识与思维,增加学生的实践与创新机会。实践表明,这些措施有效培养了学生的实践和创新能力,提高了学生的综合素质。     

PLC课程的实践创新能力培养模式构建

本文结合我校"可编程控制器"课程建设的经验,构建了包含"授课—实验—实习—综合训练"四个模块的模块化实践和创新能力培养模式。我们在各模块分别进行了实验室授课、案例教学、开放性实验和实习、企业实习、参加学科竞赛和参与科研项目等多方位的教学改革,使各模块均围绕工程实践和创新能力培养展开,取得了较好的效果。     

高校计算机专业程序设计课程教学改革探讨

程序设计类课程传统的理论教学、实践教学和考核方式存在问题,已经满足不了当代计算机专业学生程序设计综合能力和创新能力的培养。以ACM竞赛模式为导向,探讨将竞赛模式与程序设计类课程的教学、实践、考核相结合,激发学生兴趣,强调实践和计算思维能力,提高学生自主学习意识,培养学生的综合能力,为促进程序设计类课程的教学改革提供参考。     

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.     

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.     

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.