工程教育理念下的高级程序设计类课程的改革与探索

信息技术的飞速发展以及企业对学生软件开发技能要求的不断提高,迫切需要CDIO工程教育理念引入高级程序设计类课程的教学与实践中。根据CDIO对学生4个层面能力的要求,从学科知识内容的安排、项目设计、教学平台设计以及评价体系的建立等方面进行了研究与探讨,以培养工程应用型软件开发人才为目标,突出体现复合型、多层次的特点,着重培养和提升学生解决工程问题的综合能力。     

以项目为引导,进行《PLC应用技术》教学内容整合研究

本文以项目教学法为引领,立足高职院校专业人才培养目标,围绕电气自动化技术专业的《PLC应用技术》教学目标,以自动分拣线控制系统为载体,进行课程内容的整合,进而撰写项目任务书。通过项目实做,指导学生主动学习以获得PLC技术应用的基本技能和理论,同时半开放性的项目设计也引导学生在实施过程中发挥主动性和创造性,为毕业后可持续发展积累所需的知识与技能,提升职业迁移能力。     

“智能机器人技术”课程教学改革实践

为解决高校智能机器人工程专业在教学实践环节中教学定位不明确、缺乏规范的课程标准与教学模式、教学评价指标不够全面等问题,从机器人工程专业学科的综合性和实践性强、交互性和探究性强的教学特点入手,以多类型移动智能机器人平台为对象,围绕机器人本体结构设计、运动控制与作业系统的仿真与工程验证,构建以电子电路设计—控制软件—离线与系统仿真-项目实践为一体的学习框架,实现《智能机器人技术》从认知型教学到应用型教学,再到研究型教学的贯通式和项目导向式教学。实践表明,改革后的《智能机器人技术》课程的教学内容和方法保证了理论教学与实践教学的先进性,提升了学生的专业水平,培养了学生的项目经验和工程应用能力,提高了学生的科学素养和综合能力。     

基于云“微服务+项目”的实验教学模式研究

文中基于信息类专业,提出了一种以云平台“微服务+项目”的实验教学体系。该体系以平台为支撑、以微知识为基础、以微服务为核心、以平台整合微服务项完成实验实训项目为指导、以大数据分析统计为考核手段。这种教学方式可以使学生既掌握“知识原理”,又熟悉“专业整体”,同时还能完成“企业项目开发”。该教学模式以提高学生综合素质为目标,力图通过引入企业实际项目开发与管理,与企业实现互连互通,并以专业知识分解为特色,加强专业核心技能培养,提高学生的动手能力及解决复杂工程问题的能力。     

基于项目的学习模式在"虚拟仪器技术"课程的应用

基于项目的学习（PBL）是一种以学生为中心的新型教学模式,有利于学生学习能力、创新能力和实践能力的培养。这种教学模式已在欧美高等工程教育中广泛使用。本文介绍了基于项目的学习模式在“虚拟仪器技术”课程教学过程中的应用。介绍了项目选定、制定计划、设计与制作、成果演示及评价等教学流程的科学制定及实施。     

“运动控制系统”课程设计在SRTP中的探索

“运动控制系统”是一门紧密结合理论和实践的综合性课程,在大学生创新、创业等科研竞赛中广泛应用,但多数学生仅停留在基础理论层面,难以较好地应用于实战工程项目中。因此,本文提出在“运动控制系统”课程中基于项目导向型的教学模式,将课程理论知识融入到项目实践中。通过SRTP实践项目“两栖无人机系统的研制”为例,以学生主动分析问题、解决问题为主,教师适时提供指导和建议为辅,全面培养学生创新思维、项目管理能力、科研实战能力和团队协作能力。案例表明该教学模式能够激发学生参与科研训练的积极性和主动性,全面提升学生的综合竞争力。     

数字系统设计课程优化与教学模式探索

针对电子信息类本科课程改革面临的课时压缩与教学新内容增加的矛盾,以测控技术与仪器专业的“数字系统设计”课程为例,探讨了融入专业特色的课程内容与教学方法改革。以培养学生解决测控领域的复杂工程问题能力为目标,通过调整授课计划安排、优化理论教学内容、拓展和创新实验项目、强化课程过程考核评价方法、开放线上教学资源和为学生提供实践应用与创新实验平台等手段,来激发学生自主学习兴趣,提升学生复杂数字系统的设计与创新能力。     

“Java程序设计”混合式教学创新模式探究

针对教学中学生被动参与、教学反馈不及时等问题,基于成果导向教育理念,从目标出发,设计教学评价的方法,再设计学生学法,最后设计教法。探索“项目式教学+翻转课堂”校本化,实施BOPPPS+“引、探、析、评、创”教学法：教师通过将课程大项目分解为若于子项目,课中PBL导入、明确学习目标、分析前测结果、引导学生在参与式学习中探索分析现实问题、后测和总结。实践表明：学生主动学习的积极性增加了,分析解决实际问题的能力提升了;抢答、微评论、讨论等参与式学习的设计使教学互动增加;学习通的后台统计数据使得过程性评价得以实施;信息技术工具的使用也使得教学效果得以及时反馈,最终提升了学习效果。     

“过程控制系统”课程的实验教学改革

本文介绍我校"过程控制系统"课程的实验教学改革。我们的改革目的是提升学生的学习兴趣以及提高他们的专业技能综合素质,采用项目驱动和以学生为中心的方式改革实验教学内容、教学模式以及兼顾过程与结果的实验评价方式。此项改革取得了良好的教学效果。     

基于能力素质模型的"微型计算机原理"教学改革

本文构建了自动化专业能力素质模型,强调"微型计算机原理"课程教学中,实践能力与控制系统理论分析、设计能力相结合,对该课程的部分内容进行教学改革,以提高学生解决复杂控制系统工程问题的能力.     

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.     

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.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks