基于开源软件的私有云计算平台构建

介绍了私有云的应用范围,讨论了自行开发、商业和开源解决方案各自的特点,分析了开源方案的主要优势,比较了主流的开源云计算项目Eucalyptus、OpenStack、OpenNebula和Nimbus,重点研究了OpenStack架构。在此基础上,讨论了基于OpenStack的私有云计算平台构建方法,其主要过程包括基础环境配置,Nova、Glance、Swift、Keystone和Horizon组件安装,虚拟机部署等,最后给出了该平台在云计算软件测试项目中的应用实例。     

华平信息技术股份有限公司市场部总经理 朱超华

2012年是华平股份发展至关重要的一年,公司在市场、销售、产品等方面都取得了较大的发展。 市场方面,华平股份对公司团队进行了调整和优化,扩充了技术研究和市场销售队伍,完善了总部、7个大区（华东、华中、华南、西北、西南、东北）,31个办事处的三级架构模式,实现了服务网络的全国全覆盖,有效地保障了客户服务要求的响应时间和服...     

常怀感恩之心，树立良好形象

"5·12"汶川特大地震,震级之高、破坏之大、波及之广、营救之难均超过了唐山大地震,给四川灾区带来了巨大的破坏,造成了严重的人员和财产损失.但是四川人民并没有被突如其来的灾难吓倒,而是团结一心、坚忍不拔、努力自救,展示了四川人能够吃大苦、耐大劳、百折不挠、勇于担当的崇高精神,受到了舆论的普遍赞扬,感动了中国,感动了世界.     

制约物联网发展的因素研究

介绍了物联网的发展背景,阐述了物联网的体系结构和核心技术,介绍了物联网的应用领域,并详细地从标准、技术、安全、IP地址、市场、产品开发难度等方面详细研究了制约物联网的发展因素。     

内外兼修，联想网御入侵防护系统护航证券内外网安全

当前,国内各证券公司已建成了全电子化的交易系统,覆盖了投资者开户、订单报送、交易撮合、市场监察、银证转账、清算交收等全部环节,为资本市场的快速发展提供了有力的支持,也适应了我国证券市场中小投资者多、覆盖地域广、换手率高等特点。     

云计算环境下计算机网络安全技术的优化

21世纪,我国步入信息化时代,加大力度研发先进的信息技术,逐渐形成了“云计算”环境。文章分析了云计算的概念和特点,即云计算具有安全可靠、方便快捷等应用优势,能够为用户提供数据存储、计算、共享的平台,让用户享受更加便捷的网络服务,提高用户的工作效率。此外,文章还分析了当前计算机网络的安全隐患,提出了计算机网络受到的攻击类型,包括利用电子邮件进行攻击、利用网络系统漏洞进行攻击、后门软件攻击等,明确了每一种攻击的路径和外在表现,提出了相关的网络安全防护技术,包括防火墙技术、漏洞扫描技术、病毒防护技术、网络访问控制技术等,探索了不同技术的原理和应用方法,最终得出了改善计算机网络系统安全的相关结论,提出了实践操作策略。     

采用发光二极管的液晶投影机的设计

利用红、绿、蓝三个发光二极管(LED)作为液晶投影机的光源,设计了包括发光二极管、集光透镜组、偏振光转化器、积分透镜、场透镜、偏光板、十字合成棱镜,以及1.40 cm(0.55 in)液晶板的新型照明系统的光学引擎.比较了LED投影机与目前超高压汞灯投影机两种光学引擎技术,讨论了LED投影机的发光效率、光谱特性,并测量了样机的照度、对比度.测量结果达到了设计目标.     

江阴广播电台数字网络化播控系统的设计与应用

介绍了江阴广播电台播控系统的设计要求与建设思路,阐述了直播间与总控机房的组成架构,对系统中的调音台,矩阵,音、视频切换器等核心设备功能做出说明,详细论述了该系统的监控、监测、监听功能,明确了施工质量要求,确保电台稳定、安全、高效的节目播出.     

Standard Introduction and Application Analysis of Digital Home

介绍了数字家庭相关背景和发展历程,分析了其网络化、信息化、智能化、安全性和一体化服务5个方面的要求,并重点介绍了OSGi、DLNA、闪联、e家佳等主要标准,列举了基于各标准的典型应用,最后对数字家庭发展的方向进行了总结.     

HP Integrity动能服务器在电信企业信息化系统中的应用

1 引言 随着科学技术的飞速发展,电子信息产业不断完善成熟,互联网在企业问激烈竞争中起到的作用日益明显。同时,信息化的发展也改变了传统的办公方式,极大地提高了企业的运作效率,节约了成本,增强了企业的竞争力,因此,各大电信企业都十分重视信息化的建设,积极引进国际先进的管理理念、管理软件,涵盖了人力资源、财务、管理会计、物流、ERP（资源管理）、市场分析及业务数据库等。     

Overrepresentation and underrepresentation of African Americans and Latinos as lawbreakers on television news

We conducted a content analysis of a random sample of local television news programming in Los Angeles and Orange counties to assess representations of Blacks, Latinos, and Whites as lawbreakers and law defenders. 'Intergroup' comparisons of perpetrators (Black and Latino vs. White) revealed that Blacks and Latinos are significantly more likely than Whites to be portrayed as lawbreakers on television news. 'Interrole' comparisons (lawbreakers vs. law defenders) revealed that Blacks and Latinos are more likely to be portrayed as lawbreakers than as defenders, whereas Whites are significantly more likely to be portrayed as defenders than as lawbreakers. 'Interreality' comparisons of lawbreakers (television news vs. crime reports from the California Department of Justice) revealed that Blacks are overrepresented as lawbreakers, and Latinos and Whites are underrepresented as lawbreakers on television news compared to their respective crime rates obtained from the California Department of Justice for Los Angeles and Orange counties. Interreality comparisons of law defenders (television news vs. county employment records) revealed that Whites are overrepresented, Latinos are underrepresented, and Blacks are neither over- nor underrepresented as police officers on television news compared to employment reports. We speculate on the psychological effects of exposure to these intergroup, interrole, and interreality differentials on television news viewers.     

Automated defect detection in uniform and structured fabrics using Gabor filters and PCA

This paper describes an algorithm for texture defect detection in uniform and structured fabrics, which has been tested on the TILDA image database. The proposed approach is structured in a feature extraction phase, which relies on a complex symmetric Gabor filter bank and Principal Component Analysis (PCA), and on a defect identification phase, which is based on the Euclidean norm of features and on the comparison with fabric type specific parameters. Our analysis is performed on a patch basis, instead of considering single pixels. The performance has been evaluated with uniformly textured fabrics and fabrics with visible texture and grid-like structures, using as reference defect locations identified by human observers. The results show that our algorithm outperforms previous approaches in most cases, achieving a detection rate of 98.8% and a false alarm rate as low as 0.20–0.37%, whereas for heavily structured yarns misdetection rate can be as low as 5%.     

人为损坏通信光缆设施的现状和法律需求

在深入广泛调研的基础上,主要阐述了人为损坏通信光缆线路及其设施的2种行为方式和行为原因、蓄意破坏和过失损坏造成的严重经济损失和社会后果、电信运营商线路维护部门所采取的应对措施和效果,以及急需制订《电信法》的依据     

Microthyristor-based sequential circuits and systems

This paper describes the construction of new circuit configurations for some sequential circuits. These circuits are based on the microthyristor as a microelectronic bistable device that can store logic one and logic zero and on NMOS transistors that act either as pass transistors or drivers. The shift register, considered as a main type of sequential circuit, is developed from a D flip-flop that is designed basically from the microthyristor as a bistable device. Moreover, different types of counters based on the microthyristor as a storing element are developed. Microthyristor sequential circuits were found to perform well.     

中小型电视台的节目后期制作与合成

随着社会的进步和科技的发展，电视观众的审美水平不断提高，对电视节目的制作水平提出了更高的要求。受电视台设备与制作水平的限制，怎样在现有条件下既满足观众的审美要求，又尽可能地利用现有设备，使制作人员充分发挥聪明才智，是需要讨论的问题。从中小型电视台的现状出发，介绍当前节目后期制作与合成的流程，重点讨论它的局限性，提出适当的改进建议。     

Anisotropic and giant magnetoresistive elements

The technology of magnetoresistive element (MRE) fabrication and integration as well as some experimental results on the performance of anisotropic and giant magnetoresistive elements are discussed. Most emphasis is put on isolated MREs in specially designed test structures, although results on completed heads will also be discussed. Aspects such as output signal level, noise level, distortion and magnetic stability are the performance indicators considered.     

IPTV与现代远程教育的融合及其存在的问题

IPTV作为一种新兴的媒体,能为用户提供教育、信息、娱乐、购物等服务,着重介绍网络电视对远程教育的教育方式、学习方式、信息传递方式、教学资源、教学管理所产生的影响,说明用户使用的方法、网络电视与现代远程教育融合需要解决的问题。     

Mechanical and electrical properties of ultra-thin chips and flexible electronics assemblies during bending

Ultra-thin chips of less than 20 μm become flexible, allowing integration of silicon IC technology with highly flexible electronics such as food packaging sensor systems or healthcare and sport monitoring tags as wearable patches or even directly in clothing textile. The ultra-thin chips in these products will be bent to a very high curvature, which puts a large strain on the chips during use.In this paper a modified four-point bending method is presented, which is capable of measuring chip stress at high curvatures. The strength of several types of ultra-thin chips is evaluated, including standalone ultra-thin test chips and back-thinned 20 μm thick microcontrollers, as well as assemblies containing integrated ultra-thin microcontroller chips. The effect of chip thickness, bending direction and backside finish on strength and minimum bending radius is investigated using the modified four point bending method. The effect of bonding ultra-thin chips to flexible foils on the assembly strength and minimum bending radius is evaluated as well as the effect of bending on electrical properties of the bonded microcontroller dies.     

Organization and Tagging of Blog and News Entries Based on Content Reuse

As their popularity as dynamic platforms for information dissemination and sharing increases, the use of Weblogs (blogs) which track and comment on real world (political, news, entertainment) events is also growing. The success of the blog as a popular medium for information sharing, on the other hand, is also its weakest spot in that there is little support beyond keyword based searches for blog entries. Consequently, there is impending need for navigational support, which can help users relate a large, diverse, and inherently distributed collection of blogosphere. In this paper, we first note that the existence of large degrees of content overlaps in the form of quotation/commentary pairs (as well as content borrowings across media outlets) can be leveraged for tracking the topic development patterns within the blogosphere. Relying on this observation, we first propose focus and flow analysis techniques that rely on reuse detection and focus and flow to help place blog entries into logical organizations. We then show that these implicit or explicit quotations as well as focus analysis could be leveraged to identify the contexts in which entries occur; thus, resulting in more effective tagging. Thus, we propose CDIP (a collection-driven, yet individuality-preserving tagging system) which relies on relationships provided by quotation/reuse detection and semantic-focus analysis to automatically tag the blogs in such a way that, not-only the related blogs share tags, but also individuality of the entries is preserved for discriminating tag-based accesses.     

Cluster and thin layer of compound semiconductor growth on hexagonal and vicinal cubic surface and the simulation of atom behavior

The thin layer of the II–VI and IV–VI compound growths on crystalline substrates by laser deposition was analyzed. The influence of substrate properties on crystallite formation was determined. The initial stages of the growth of CdSe on ZnSe as well as ZnSe and PbS crystallite growth and layer formation on a Si substrate were investigated by ESCA or AFM and by the influence of clusters on the recombination of non-equilibrium carriers in substrates. The atom behavior on a terrace-step surface was analyzed and a few cases were simulated within the framework of the density-functional theory. The terrace step on Si (111) relaxation and preferred sites of Se adsorption were calculated from potential energy surfaces seen by adatoms.