计算机课程中的MOOC+SPOC教学实践

阐述MOOC与SPOC的特点，计算机课程的教学现状，探讨计算机课程基于MOOC+SPOC的教学改革实践，包括创建课程教学资源平台、设计MOOC+SPOC教学模式、营造一种良好的自主学习环境、分析课程教学的评价方式。     

“互联网+”时代电路课程教学探索

电子科技大学自 2016 年以来,连续五个学期开展电路分析课程的 MOOC 教学,并基于 MOOC 平台进行了新型教学模式尝试。本文首先介绍了电子科技大学电路分析课程所采用的基于 MOOC 的多元教学模型;而后通过 MOOC 后台数据分析、讨论区数据词频分析等手段对该教学模式的不足进行了分析;最后针对现有教学模型的缺陷,提出一种基于多种互联网技术和资源的深层次多元教学模型。     

服务意识下的MOOC设计与实践——由北京大学“20世纪西方音乐”课程谈起

本文以教师的服务意识为出发点,以北京大学“20世纪西方音乐”课程为例,首先介绍了MOOC课程的特点,论证了MOOC课程开设的必要性和重要性,重点论述了MOOC课程的教学设计,并对MOOC课程与面授课程的关系进行了分析,最后提出开办MOOC课程的经验,以期为以后和其他学校的MOOC课程建设提供借鉴。     

基于BiLSTM-CRF的MOOC课程评论抽取研究

文中主要研究从MOOC课程评论中抽取评价对象和评价词的方法.将MOOC课程评论评价对象和评价词的抽取问题看作序列标注问题,利用BiLSTM模型获取MOOC课程评论中评价对象和评价词的上下文信息,利用CRF模型获取MOOC课程评论中评价对象和评价词的整体信息,从而标注出MOOC课程评论中评价对象和评价词.提出的MOOC课...     

“世界文化地理”MOOC课程建设有感——基于edX和网易云课堂MOOC平台

本文基于作者主持建设“世界文化地理”MOOC课程的实践思考,从MOOC课程的背景、内容、平台、教学设计、问题和数据分析等方面进行了梳理,阐述了作者近期对MOOC课程进行研究与思考所提出的教育观点。     

北京大学MOOC研究——以“艺术史”课程为例

本文基于笔者主持建设“艺术史”MOOC课程的实践思考,从MOOC课程的背景、内容、平台、教学设计、问题和数据分析等方面进行了梳理,阐述了笔者近期对MOOC课程进行研究与思考所提出的教育观点。     

基于MOOC的局域网组网技术课程教学模式研究

MOOC是近几年最流行的网络教学模式,依托MOOC开展局域网组网技术课程教学改革,能极大提高教学效率。在分析我校局域组网技术课程教学现状的基础上,提出了基于MOOC的局域网组网课程教学模式设计和课程考核方法,针对MOOC的教学模式流程,探讨自主搭建ed X开源平台,以CISCO网络学院课程为资源库,以工作任务为导向将MOOC的教学模式应用在局域网组网技术课程中。     

互联网+背景下的成人高等教育“大学计算机基础”课程改革

在新时代下,以网络慕课(MOOC)、SPOC小规模在线课程、超星学习通为主的“互联网+”教育模式,被广泛应用于高等院校的课程教学活动之中。从“互联网+”环境下计算机基础课程教学设计的角度出发,探讨当前成人高等教育中的“大学计算机基础”课程教学活动现状、存在的不足,继而以“MOOC+SPOC”网络线上教学平台开发为抓手,建构围绕学科教材的课程教学知识体系、问题导向情境,组织设计每单元的演示讲解与测验内容、交互与指导方式、教学考核评价机制,可以帮助学生感知、理解与掌握“大学计算机基础”课程中的重要知识点,提高其理实融合的实践应用能力。     

基于MOOC的计算机教学优化策略

阐述计算机课程教学中的问题，基于MOOC背景的计算机教学方法，任务驱动式课程教学流程设计，包括案例的任务设计、课堂微视频的制作、发布任务、学生的自主学习、互相讨论和教学评价。     

MOOC模式在Web程序设计课程中的应用与实践

当下很流行的MOOC对开放式教学和网络教学有很大的借鉴意义,针对重庆城市管理职业学院已有教学资源和Web程序设计类课程的特点,引入MOOC模式对课程教学资源建设、教学主体翻转、考核方式等进行改革,对MOOC理念下Web程序设计课程的教育教学改革进行了实践和探索。     

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.