市级政务云计算中心建设探讨

为解决政务IT硬件资源重复投资、建设和资源率低的问题,结合地市实际IT硬件资源需求,有针对性建立了政务云“3个1”总体技术架构,构建了1个政务云计算平台、1个政务云监管平台和1个云保障中心的技术架构,对架构中基础配套设施、云资源、云管理、云网络、云安全、云监管及云运维等7个组件进行了深入探讨,提供了安全、跨平台的市级政务云中心建设的整体解决方案。     

林草云数据中心的设计与实现

随着林业信息化建设的发展,智慧林业建设需要大规模的硬件资源支撑其业务需求,通过构建国家林草云公共服务平台,实现林草信息化资源深度的融合,研究了林草云数据中心的物理架构、逻辑架构和功能架构设计,通过研究林草云数据中心平台的收益,为进一步推进云计算在部委级应用提供了示范案例,为快速提升全国林草信息化水平,促进全国林草与现代信息服务业的深度融合提供重要参考。     

基于Hadoop云存储架构的教育资源管理优化技术研究

为了解决现有教育资源管理技术存在吞吐量差、存储效率低等缺陷,设计Hadoop云存储架构对教育资源管理技术进行优化。采用Hadoop云存储架构对教育资源进行管理,得到教育资源云结构;在此基础上,采用云计算技术构建教育资源数据中心,以教育数据中心为基础,以Hadoop云存储架构为平台对教育资源进行上传与下载,实现了教育资源的管理与优化。仿真实验结果表明,与现有的教育资源管理技术相比较,提出的教育资源管理优化技术极大地提升了教育资源的吞吐量与存储效率,充分说明提出的教育资源管理优化技术具备更好的性能。     

新奥特公司

BIRTV主题报告会新奥特阐述基于视频云计算的全媒体运营技术新架构8月23日,新奥特在BIRTV2011主题报告会上作了题为《基于视频云计算的全媒体运营技术新架构》的报告。报告全面阐述了新奥特全新发布的C-MAP基于视频云计算的全媒体运营技术架构,提出了采用统一数据中心,智能构建经营管理云平台、生产制播云平台、集成分发云平台和运营发布云平台等四大核心云平台。基于云计算理念与技术构建的C-MAP技术架构,采用统一数据中心,在传统数据中心可信、可控、可靠、安全的基础上,增加     

基于OpenStack的高职院校云数据中心研究与实现

文章提出设计一种基于OpenStack的高职院校云数据中心,分析建设该云数据中心的目标,立足建设OpenStack架构,包括校级统一标准数据共享体系建设内容和私有云数据中心建设,通过基础设施层、云平台层、管理层和应用层。有效提升了云数据中心的系统可用性,结合VPC技术能够实时隔离共享信息,增强了系统管理应用安全灵活性,也方便主机资源的进一步拓展和后期维护。     

省级教育网数据云平台的构建及实施

从电信运营商角度出发,结合运营商前期数据中心建设思路,提出一种基于云计算、虚拟化技术的省级教育网数据云平台架构,首先结合业务需求分析及云计算、虚拟化关键技术,明确平台定位目的及思路,然后给出一种省级教育数据云平台功能架构,进而对平台的网络组织架构进行论证、描述;同时对中心平台的搭建思路和方案进行对比和分析,所涉及的省级教育网数据云平台对于运营商教育系统相关应用的建设具有借鉴和指导意义.     

云数据中心及云平台技术应用研究

云化的数据中心是虚拟化、自动化、并行计算、安全策略以及能源管理等新技术的融合,是支撑运营商业务的关键基础设施。广电网络运营商之间、以及广电网与互联网实现互联互通,开展视频内容运营,云数据中心将发挥重要作用。本文研究云数据中心的关键技术以及其发展趋势,梳理国内外主要IT设备提供商的数据中心技术架构和解决方案,从而形成广电建设云数据中心及云平台的技术思路,为有线电视网络运营商云平台业务提供参考依据。     

基于容器技术的PaaS云平台方案

随着互联网业务发展及IaaS云资源池技术的成熟,IT支撑系统也在尝试PaaS云的建设及应用.分析了IT系统如何考虑技术演进,搭建PaaS云平台架构,实现系统资源的统一管理、监控、共享和调度,实现应用的统一部署和多数据中心的高可应用性.     

关于分布式云数据中心架构及管理关键技术研究

对于当前的云计算程序,其最主要的功能是对单个云数据中心问题进行解决,而对于多个云数据之间的资源共享以及统一的管理等问题,我国当前的云计算程序对其还无法进行解决。为了有效解决我国的云数据中心问题,逐渐开始进行分布式云数据中心系统的建设,并对该数据中心的相关管理服务等的关键技术进行有效的分析。同传统的数据中心模式不同,分布式云数据中心采用的是一种全新的架构和管理模式,其架构采用的是扁平式的构成,且对数据中心的资源进行统一的管理,通过这种模式能够对不同地域和不同阶段的单体云数据资源进行共享,实现资源的统一管理,使云数据能够提供更加高效和可靠的服务。     

企业云平台建设研究

本文首先阐述了云平台基础结构,然后结合企业云平台的实际需求,设计出了基于企业的云平台架构,并对企业云平台中软件即服务、平台即服务和基础设施即服务三层进行了详细的研究分析,软件即服务中主要包括企业门户、统一身份认证、企业应用系统和企业数据中心,平台即服务主要包括操作系统、软件开发平台和数据库平台,基础设施即服务主要包括服务器虚拟化部署和企业云虚拟化平台。     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

Complete approach to automatic identification and subpixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.