云计算在数字校园的应用研究

云计算是现代信息技术发展到一定程度的必然趋势,教育也应当跟上发展的步伐,云计算在我国的数字化校园的建设中也将会得到很好的运用.利用云计算进行数字化校园的构建是对校园各个系统业务的整合,可以使系统的运行效率得到提高.云计算在数字化校园中的应用比传统的信息技术安全、可靠,给高校师生提供了更加方便和优质的服务.本文介绍了云计算的概念、特点以及优势,并分析了云计算在数字化校园中的具体应用,具有参考价值.     

云计算在中职学校数字校园的应用与探讨

现代信息技术发展的大势所趋,云计算技术越来越广泛的应用,教育作为国家的根本,必然要顺应时代的发展潮流,时刻保持快速的前进,云计算必然也会在在我国的数字化校园建设中得到应用。通过云计算构建数字化校园建设能够整合校园各个系统的业务,提高教务系统的运行效率。在数字校园中,云计算的应用相比于传统的信息技术更加可靠、安全,为中职学校的教师以及学生提供更加方便快捷的服务。本文主要通过对云计算的概念特点进行研究和分析,探讨云计算在数字化校园应用过程中存在的优势以及劣势问题。     

大数据背景下数字化校园云存储安全策略研究

文章研究了云计算技术在数字化校园建设中的应用路径,阐述了提高云存储安全性与可靠性的有效策略,希望能够充分展现云计算技术优势,加速数字化校园建设进程,从而推动教学革新,为学生提供更加优质便捷的教学服务。     

基于云计算的数字化校园建设研究

伴随着互联网时代的发展,云计算可以帮助校园管理实现快捷的网络访问,形成一个可配制的计算机资源共享中心。借此不但能够降低学校管理的工作量,提升校园办公的效率,而且对提高教学效能和推进校园数字化建设具有积极的作用。基于此,文章先对云计算在校园数字化建设中的可行性与具有的优势进行分析,接着又对云计算在校园数字化建设中还存在的不足进行了探讨,最后尝试性地提出了云计算在校园数字化建设中的部分应用对策。     

云计算在数字校园中的应用研究

数字化校园的建设在当前发展背景下已然成为衡量一个学校现代化水平高低的重要标准，由此可见人们对数字信息化校园建设的高度重视。为了满足人们对数字校园建设提出的更高要求，各大学校将云计算应用于数字校园的建设中逐渐成为必然趋势。这是构建数字化校园的一个有效突破方向，利于提高数字化校园的服务、管理与维护，能够最大程度发挥云计算的应用效果并实现建设数字校园的价值与意义。在此，本文将重点研究云计算在数字校园建设中的应用。     

构建基于云网络的智慧校园建设探析

院校的数字化随着信息技术的不断发展,特别是对校园内的信息共享、运算、传输、存储等要求也越来越高,逐步向信息融合、集成、虚拟化推进,应用云计算与网络的优势来实现校园的智慧化已经成为校园信息化建设的必然趋势。文章分析了高校在智慧校园建设中存在的问题,针对实际情况提出应用云计算与网络实现智慧校园的发展方案。     

云计算技术在校园数字化建设中的应用

云计算技术的出现,为教育信息化提供了高效、低成本的解决方案;教育行业的云计算应用,又促进了云计算技术的发展,高校信息化建设中开始有意识地引入云计算技术。本文对某高校基于云计算技术的校园数字化解决方案进行了分析,以研究云计算在高校数字化建设中的应用。     

基于云计算和物联网的数字校园的研究与设计

针对目前数字化校园建设的现状以及存在的问题,充分利用云计算和物联网的优势,提出了一种基于云计算和物联网的数字化校园方案。在本方案中提出了网络和设备透明、有线与无线互联、教师与学生互通、管理与服务一体化的现代数字化校园建设。论文对数字校园系统模型进行了设计,以及详细介绍了云计算和物联网在数字化校园建设中的应用。     

构建“云计算”数字化校园网解决方案探究

云计算作为一项迅速发展的信息技术目前已应用在国内外诸多领域,其强大的云服务能力将对高校数字化校园建设产生巨大影响和无限的机遇。通过对基于云计算的数字化校园网进行资源整合,以信息服务为切入点,构建高效、快捷的信息化服务体系,为高校信息化建设提供了新的解决思路。     

云计算在高校数字校园建设中的应用研究与分析

近年来兴起的云计算,为教育信息化提供了科学、高效、低成本的解决方案,越来越多的高校开始采用云计算平台部署自己的数字化校园,文章就当前云计算在高校数字化校园建设中的一些主要应用进行了分析和探讨。     

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.