大数据时代校园一卡通数据分析与应用研究

为了提高高校大数据应用服务水平,从校园一卡通系统海量的数据中提取分析出对高校管理层进行辅助决策有帮助的信息,为高校数据资源的分析和利用提供参考。在研究大数据及相关技术的基础上,结合校园一卡通系统数据特点与应用,构建基于大数据的校园一卡通数据分析平台模型,并将此模型应用到高校消费分析、图书馆设计服务、综合预警等校园场景中,利用分析结果辅助学校决策,对推动高校数据服务及数据应用具有积极的作用与价值。     

校园一卡通在数字化校园建设中的作用

数字化校园建设是当今时代发展的要求,也是我国科技进步的体现。校园一卡通在校园中的运用,具有其特定的作用和意义,尤其是对于数字化校园的建设,更是具有不可替代的意义。可以说,校园一卡通是数字化校园建设的基础,离开了校园一卡通,便难以对学生进行信息化的管理。文章对数字化校园及校园一卡通进行了简要分析,并深入研究了校园一卡通在数字化校园建设中的作用。     

校园一卡通在数字化校园建设中的作用

如今互联网技术飞速发展,从而带动了校园渐渐趋于数字化的建设进程.校园一卡通一卡抵多卡的便捷功能使其成为当今校园实现数字化的重要标志,它集数字化、科技化、智能化于一身,现已在各大校园普遍应用.本文将从校园一卡通的概述以及其应用需求进行讨论,进而总结校园一卡通在数字化校园建设中的作用,最终展望校园一卡通的应用前景.     

数字化校园之校园一卡通的建设

数字化校园是现代人提出的未来校园建设模式构想.这一构想的提出是建立在信息技术和网络技术高度发达的基础上的,利用计算机和网络对学校的一切活动进行管理,包括教学、行政、后勤、科研等一切活动,将校园内一切信息数据都由计算机进行储存和整理,能够全面提高校园的管理效率,扩充校园的业务功能范围.在数字化校园的建设过程中,校园一卡通的发行和使用是非常重要的组成部分.本文将就校园一卡通与数字化校园建设的关系进行探讨,分析校园一卡通在系统建设的过程中存在哪些问题,又该如何进行解决.     

校园CPU卡密钥管理系统的设计与实现

文章研究了密钥管理系统在校园一卡通系统中的应用模式。首先以CPU卡技术和密码算法技术为基础,提出了一卡通系统的密钥管理系统的解决方案;然后针对系统的实现,描述了密钥分散的设计和实现过程;最后对系统中使用的算法进行了描述。密钥管理系统保证了高强度的校园一卡通系统的安全性。     

校园一卡通系统的网络技术安全探讨

近年来,我国电子科技的快速发展,计算机网络技术被广泛的应用在各个领域,随着教育行业信息化改革的逐渐深入,构建数字化校园成为了众多高校的发展目标。校园一卡通系统是数字化校园中一种重要的管理系统和消费系统,如果保证校园一卡通系统的网络安全是当前各高校亟待解决的重要问题。本文分析了校园一卡通系统存在的网络安全隐患,阐述了校园一卡通系统的网络技术安全策略。     

基于数字化校园建设的校园一卡通系统设计与实现

数字化校园的一个重要组成部分就是校园一卡通系统的建设,校园一卡通系统是校园进行数据采集的平台,同时与校内的网络信息系统与管理系统相结合,在全校范围实现了环境及数字空间的共享。数字化的校园一卡通系统的建设为学校提供了开放性和灵活性的管理与服务平台,它是实现校园数字化管理的必要途径。文中对于数校园数字化的概念、校园一卡通系统对于校园实现数字化之间的紧密关系进行了系统论述。     

网银在校园一卡通充值中的应用

目前在各大高校中,大学生主要依靠校园一卡通作为在校内日常生活消费的主要支付方式,其覆盖的范围基本包括了大学生的衣食住行,可见其重要性。因此,简化和完善校园一卡通的充值方式则显得尤为必要。另外,随着网络技术的发展,网银出现在人们的面前,它的使用在我们的日常生活中也占据了重要的位置,成为人们支付手段的主流之一。那么对网银以及校园一卡通充值进行研究,将这两者有机地结合,为大学生充值校园一卡通提供便利存在着重要的积极意义。本文将查阅和参考相关资料及文献,分析网银在校园一卡通充值中的应用,以介绍校园一卡通以及网上银行为基础,提出网银在校园一卡通充值中可能存在的问题,并提供解决方案,最后进行总结与展望,希望能为全面推进网银充值一卡通提供参考。     

校园消费自动化一卡通系统的分析与设计

IC卡应用系统在日渐成熟为校园消费自动化和一卡通系统的建立提供了技术保障,校园内实现一卡通管理已成为校园管理发展的必然趋势。结合一卡通国内外发展的状况研究了对校园“一卡通”系统的整个建设,通过学校的校园网,逐步将各处的电脑联成一个比较大的数据网,实现全校各类数据的统一性和规范性,是学校走向科学化、现代化管理的重要象征。     

基于数字化校园的校园一卡通构建研究

本文以数字化校园的一卡通系统构建作为研究对象，通过对当今校园用户进行需求分析，根据需求设计了系统的结构。之后对校园一卡通系统的主要功能模块进行了分析和设计，该系统具有统一的功能接口，为以后进行深入研究提供了保障。     

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