基于容器技术的智慧校园大数据平台持续集成研究

本文首先介绍了高校IT平台的体系架构现状,分析了智慧校园大数据平台建设的意义和需求,着重阐述了PaaS层在持续集成中的重要地位和作用,通过引入Docker容器技术,对大数据平台组件和上层应用系统进行容器化,结合自动化管理系统、私有代码仓库等工具,高效地实现了智慧校园大数据平台从开发、测试到部署的持续集成流程与框架.     

基于PDCA的移动基线安全配置脆弱性核查方法

本文为解决传统移动基线安全配置脆弱性核查查准率低的问题,提出基于PDCA设计移动基线安全配置脆弱性核查方法。通过基于PDCA自动采集移动基线安全配置脆弱性检测数据,可视化展现移动基线安全配置,实现移动基线安全配置脆弱性核查。设计实例分析,结果表明,设计核查方法核查查准率明显高于对照组,能够解决传统移动基线安全配置脆弱性核查查准率低的问题。     

智慧城市安全基座研究

随着智慧城市的快速建设,物联网、大数据、边缘计算等多技术融合应用于智慧城市的建设中,同时,数据生产要素化也带动城市数据开放共享的需求,新技术和新需求的引入伴生新的安全风险。为应对智慧城市网络空间各种安全风险,安全共生系统提供了“基座+平台”的解决方案。安全基座负责提供原子化的安全能力,并将城市安全能力打通;安全平台则以基座为支撑,建设安全应用平台处置智慧城市不同类型的安全风险。“基座+平台”的建设方案,有效解决智慧城市的安全问题,实现智慧城市数据保护、风险感知与处置协同。     

网络设备安全配置基线合规管控方案简析

介绍了网络设备安全配置基线的定义、管控对象和分类,分析了安全配置基线保障工作的难点,探讨了安全配置基线核查系统的功能需求、体系架构和部署模式,初步形成了安全配置基线核查解决方案,并从技术和管理层面提出了完善安全配置基线保障工作的相关建议。     

依托大数据平台的城市轨道交通信息系统

现代城市轨道交通系统的建设需要高效的数据信息系统来提供准确的信息,以支持运营和决策。大数据平台的使用可以加强数据的采集、分析和管理,有助于提高轨道交通系统的效率和可持续性。文中介绍了数据信息系统的关键要点、组件及作用,并强调了数据信息系统的集成性和互操作性,以确保各组件之间的协同工作。通过充分利用大数据平台和数据信息系统,城市轨道交通系统可以更好地满足城市不断增长的交通需求,提供更安全、高效和便捷的服务。     

基于图形组态功能定制的继电保护在线监测系统研究

目前智能变电站中用到的工具或软件不能随运维人员的需求而灵活改变,开发周期长。文章基于通用组态技术并结合继电保护在线监测平台,实现各类功能的组态开发,各种类型的输入输出的逻辑功能灵活定制以满足现场各类作业需求。通过在变电站试点应用,验证了此系统的有效性和灵活性,实现了运维功能的自由配置,提高了现场作业效率,降低了变电站运维风险,保证变电站的安全稳定运行与维护。     

一种无线通讯配置系统的架构设计

业界移动通讯配置部署、运维管理系统对工程师的技术要求高,工作低效,容易出错,需要支持较大的数据量。为了解决这些痛点,我司进行4+1需求模型分析明确需求,采用正交软件架构、进程容器平台组件架构、数据工厂模式,并将管道过滤器、解释器、MAP-REDUCE风格应用于数据比较,从而实现了一种低内存,高性能,自动化高,应用简单,易扩展的集中配置系统。     

如何构建数据防泄密安全体系

信息安全技术在国内的兴起也已经历了十年的发展,从概念的提出、技术的雏形到实现,到层出不穷的安全需求,再到完善的技术解决方案。人们越来越发现,不同用户在安全需求上的差异非常大。因而解决思路是：基于风险驱动,以数据为中心,分析企业的管理模式和业务流程,在不同的数据应用场景中采用不同的技术,并在此基础上整合所需的安全组件和现有业务系统,提供针对性的解决方案,改进和规范企业的数据风险管理体系。     

基于ARM架构国产化私有云的大数据平台适配性研究

构建安全可控的信息技术体系是网信领域的一项重大任务,国家大力推动信息技术应用创新产业发展。目前,核心芯片、基础硬件、操作系统等国产化替代产品已由研发逐步转入产业化发展阶段,并搭建大数据平台开展数据分析、挖掘数据资产价值。为实现大数据平台与国产化私有云平台的深度融合,文章开展基于ARM架构国产化私有云平台的大数据平台适配性研究。实验验证了大数据平台国产化迁移的可行性,在同等配置下基于ARM架构国产化私有云的大数据平台性能接近x86服务器,能够满足实际应用中对海量数据的处理需求,为大数据平台的国产化建设提供借鉴。     

基于大数据的分布式网络安全管理平台的设计

随着企业信息化程度与安全意识的不断提高,企业部署了大量的信息安全设备与安全监控系统用于企业信息安全防护,同时也带了海量的信息安全数据。面对如此大规模的信息安全数据,传统的安全管理平台显得力不从心,近年来随着各种基于针对大数据处理的分布式开源组件在互联网行业广泛的推广与应用,也为海量信息安全数据处理提供了一种新的思路。因此,文中提出了一种基于大数据的分布式网络安全管理平台的设计,平台是一套基于分布式文件系统的开源架构,以Kafka为数据收集工具,使用Hbase和My SQL作为多源异构数据数据库,结合Storm和Elastic Search进行实时处理与检索,并通过实验验证了平台的快速检索与关联分析能力,为企业部署大数据安全管理平台提供有力的依据。     

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