ICE系统自动生成研究

为自动生成基于互联网通信引擎(ICE)的应用系统,提出ICE系统模型,其中包括独立的ICE应用程序模型和基于ICE的分布式系统模型,采用可扩展标记语言与模板技术设计一种基于编程的代码生成器,支持嵌套的循环和条件语句,并提出外链模板、数据域转换等方法。应用结果证明,用户可通过系统建模/需求描述快速生成定制的ICE系统框架,提高开发效率。     

Board-level IT governance and organizational performance

Research on the strategic management of Information Technology (IT) resources has mostly focused on the oversight provided by the management team as a means to increase organizational performance. In recent years, boards of directors have also increased their involvement in IT matters, and various theoretical lenses suggest that this oversight too has the potential to influence organizational performance. Hence, this study synthesizes the resource-based and contingency views of MIS with corporate governance theories, and examines key antecedents and consequences of board-level IT governance (ITG) using a multi-method approach. Structural Equation Modelling analysis applied to organization-level data collected from 171 board members suggested that the level of ITG exercised by boards was contingent upon the organization's ‘IT use mode’, along the two dimensions of need for (a) fast and reliable IT, and (b) new innovative IT. But, the findings further suggested that the contingency approach may be suboptimal because it can cause new ways of leveraging IT to be ignored. High levels of board-level ITG, regardless of existing IT needs, increased organizational performance. This phenomenon was illuminated with applicability checks. Moreover, content analysis and structured interviews with board members further enriched these insights.     

网络通信安全及防火墙技术分析

随着科技的发展与进步,信息技术时代已经到来。网络通信已经成为人们日常生活、办公的重要组成部分,然而,随着网络通信技术的不断应用,越来越多的网络问题也开始出现,这些网络通信问题主要体现在技术故障和通信安全方面：技术上的故障一般是硬件连接与软件设置上的问题;通信安全则表现在信息泄漏、信息篡改、非法信息渗透、非法使用网络资源等方面。文章则将围绕通信安全与防火墙技术展开论述。     

ArtShop: an art‐oriented image‐processing tool for cultural heritage applications

Advances in electronic imaging over recent years have encouraged the development of new tools for cultural heritage applications. In this paper a software application called ArtShop is described, containing some tools for artwork image restoration, developed during several years of research at the Image and Communications Laboratory of the University of Florence. Copyright © 2003 John Wiley & Sons, Ltd.     

物联网为嵌入式系统带来的新契机

物联网是互联网与嵌入式系统发展到高级阶段以后的完美融合,具有20多年物联网史的嵌入式系统,是物联网技术的重要组成部分。本文从嵌入技术和嵌入式处理器入手,并阐述了嵌入式技术在物联网中的作用及发展前景。     

Board IT Governance in Context: Considering Governance Style and Environmental Dynamism Contingencies

ABSTRACT

We theorize that IT governance (ITG) by the board of directors is most effective when there is a fit between the dynamics of the business environment and the governance style through which board ITG is delivered. Survey findings from 110 board members largely supported these assertions. Findings show that authoritative governance style and environmental dynamism represent important boundary conditions for the efficacy of board ITG to achieve performance gains. Research and practical implications are discussed.     

便携式智能导游系统的设计与实现

针对现有智能导游系统在普及和应用中的缺陷,基于以用户为中心的交互设计原理,从可用性和用户体验的角度设计智能导游系统iGuider。该系统结合全球定位系统、地理信息系统及多通道交互技术,为游客提供相关景点的多媒体信息。测试结果表明,系统运行可靠,直观自然的用户界面和反馈信息能使用户轻松使用该系统。     

Creating value through governing IT deployment in a public/private-sector inter-organisational context: a human agency perspective

Harnessing value from Information Technology (IT) has long been a focus of research, but evidence is lacking about how effective practice of Information Technology Governance (ITG) contributes to creating value for stakeholders in inter-organisational contexts. This is especially so for public/private sector partnerships. In this study we used ISO/IEC 38500:2008, the corporate governance of IT standard, to direct analysis of how ITG was practised in deployment of a large IT project in an inter-organisational public/private sector context. The findings demonstrate that ITG strategies related to human agency contribute to the realisation of value for participating stakeholders, particularly through pre-emptive stakeholder participation in evaluating IT functionality of the old system and iteratively in deployment of the new system. Further, our investigation shows that ISO/IEC 38500:2008 has merit as an analytical framework to objectively evaluate corporate governance of IT, although there is need for some enhancement.     

Team formation based on group technology: A hybrid grouping genetic algorithm approach

This paper presents a new model for team formation based on group technology (TFPGT). Specifically, the model is applied as a generalization of the well-known Machine-Part Cell Formation problem, which has become a classical problem in manufacturing in the last few years. In this case, the model presented is especially well-suited for problems of team formation arising in R&D-oriented or teaching institutions. A parallel hybrid grouping genetic algorithm (HGGA) is also proposed in the paper to solve the TFPGT. The performance of the algorithm is shown in several synthetic TFPGT instances, and in a real problem: the formation of teaching groups at the Department of Signal Theory and Communications of the Universidad de Alcalá in Spain.     

浅析福建教育统一通信平台的部署

随着教育信息化进程的不断深入,信息系统和通信终端越来越多。如何实现系统数据共享、终端互相通信是我们面临的一个难题。统一通信平台理念的提出,为解决这一难题提供了契机。本文描述了教育统一通信平台的概念、功能及部署实例。     

Exploring the impact of operating model choice on the governance of inter-organizational workflow: the U.S. e-prescribing network

Inter-organizational networks play an increasing role in delivering computer-mediated public services such as healthcare. Many networks govern through an infomediary (i.e., electronic broker) that brings together disparate member organizations. These networks can resemble an enterprise where standards and incentives for use are imposed on its partners. This study seeks to extend an enterprise IT governance (ITG) concept to the U.S. e-prescribing network as it transitions from a paper-based network to a computer-mediated one. The operating model, proposed by Ross et al (2006), emphasizes choices in standardization and integration to align strategy with operational processes to improve enterprise performance. Missing in their work is evidence that macro-level choices embedded in the operating model directly impact network workflow. A comparative synthesis traces the changes made to the U.S. e-prescribing operating model to their impact upon the roles and relationships among network members. Some workflow mis-alignments were traceable to the operating philosophy imposed by healthcare policy-makers. The study suggests IT alignment in networks may be better achieved through governing operating models rather than the traditional ITG focus on organizational forms.     

Achieving synergy in collaborative education

Professional software engineering continues to face problems that involve large-scale (complex) software systems development. Such efforts typically require team collaboration over months, possibly years. Once implemented, the system must be maintained for sometimes decades. This development and maintenance life cycle requires not only technical knowledge and skills in software development, but also the knowledge and skills associated with software process. We believe the traditional computer science curriculum fails to consider this spectrum of needs. We also believe, however, that software engineering must use certain elements of the core knowledge and skills taught by computer scientists as its foundation. We describe lessons learned from the 10-year collaboration between Monmouth University and the Software Engineering Center of the US Army's CECOM (Communications Electronics Command). The center recruits electrical engineering and computer science graduates from academic institutions in the geographic regions surrounding its various installations to be part of its intern program; Monmouth University, in turn, incorporates the demands of the intern program in its Master of Science in software engineering curriculum     

移动支付安全性问题研究

移动支付是允许移动用户利用无线通信技术,使用其移动终端对所消费的商品或服务进行账务支付的一种服务方式。在移动电子商务迅速抢占市场的同时,作为移动电子商务重要组成部分的移动支付近年来发展如火如荼。本文通过对移动支付相关概念的介绍,分析了目前移动支付存在的安全问题,提出了一些解决办法。     

论虚拟设计在现代产品开发中的重要作用

文中通过引入虚拟设计的概念,分析了虚拟设计对产品设计方式的影响;具体介绍了虚拟设计的两种设计方式———异地网络互动设计方式和基于虚拟现实系统的设计方式;通过与以前设计方式的比较,更深一步探讨了虚拟设计如何在现代产品开发中实现,提出了虚拟设计在现代产品开发中的重要作用;通过具体的实例以及对各个国家在虚拟设计方面所做的努力分析了虚拟设计在应用方面的问题,并对今后虚拟设计的发展前景进行了展望,指出虚拟设计有待于更进一步的发展。     

虚拟制造环境下VE型分配泵的研发

介绍了虚拟制造技术及其分类，探讨了以设计为中心的虚拟制造技术在汽车零部件研发中的实践．利用该技术，以柴油发动机VE型分配泵为研究对象，重点分析了传动部件易断裂问题，研究内容涉及产品全生命周期的各个阶段，包括虚拟样机设计、虚拟样机运动学动力学仿真、虚拟装配、有限元分析和零件虚拟加工仿真等，并对研究结果进行了实验验证．结合企业实际，给出了解决方案．     

Conservative global gyrokinetic toroidal full-f five-dimensional Vlasov simulation

A new conservative global gyrokinetic toroidal full-f five-dimensional Vlasov simulation (GT5D) is developed using a novel non-dissipative conservative finite difference scheme. The scheme guarantees numerical stability by satisfying relevant first principles in the modern gyrokinetic theory, and enables robust and accurate simulations of tokamak micro-turbulence. GT5D is verified through comparisons of zonal flow damping tests, linear analyses of ion temperature gradient driven (ITG) modes, and nonlinear ITG turbulence simulations against a global gyrokinetic toroidal δf particle code. In the comparison, global solutions of the ITG turbulence are identified quantitatively by using two gyrokinetic codes based on particle and mesh approaches.     

浅析科学技术对艺术设计的影响

在一般人眼里,科学技术与艺术设计似乎是两个截然不同,分别独立存在的领域。然而事实并非如此,科学技术与艺术设计是相互渗透相互作用的。本文着重阐述了科学技术对艺术设计的影响和作用。第一部分结合实例论证科学技术对艺术设计的重要作用;第二部分立足当代,研究社会的科学技术发展以及社会进步,并详细阐述了此环境下的艺术设计的发展阶段——非物质设计;第三部分,放眼未来,阐明设计的必然趋势—科学与艺术的整合。     

Managing the Next Wave of Information and Communications Technologies: A Report on NOMS 2012

The 13th IEEE/IFIP Network Operations and Management Symposium (NOMS 2012) was held on April 16–20, 2012 in Maui, Hawaii, USA. Held in even-numbered years since 1988, NOMS 2012 followed the 24 years tradition of NOMS and IM as the primary IEEE Communications Society’s (ComSoc) forum for technical exchange on management of information and communication technology focusing on research, development, integration, standards, service provisioning, and user communities. In this paper we report the highlights of the 2012 edition of the symposium, including significant activities, discussions, impressions and observations.     

融合通信系统中分布式存储引擎的研究

融合通信是当今计算机应用领域研究热点之一,人们对融合通信系统中应用服务的要求也越来越高.在数据存取方面,基于传统关系型数据库或者基于传统文件系统的存储方式已经越来越不能满足应用的需求.随着Hadoop技术以及相关子系统的发展,分布式存储的优势日渐明显.因此,本文在分析HBase、Hive各自特点及其体系结构的基础上,结合融合通信具体项目提出了基于HBase-Hive集成设计的存储引擎设计方法,以此来解决融合通信系统中数据安全性、数据获取效率等方面不满足的情况.通过对比实验表明,该设计方案提高系统数据查询获取效率,也为后续数据挖掘方面的开发做好准备.     

Measuring the machine intelligence quotient (MIQ) of human-machinecooperative systems

We present a practical and systematic strategy for measuring machine intelligence quotient (MIQ) of human-machine cooperative systems. So far, much research related to intelligent control has been established, but the issues about definition and measurement of machine intelligence are not yet clearly formulated. We propose the intelligence task graph (ITG) as a modeling and analysis tool. By using the ITG, the machine contribution of human-machine cooperative systems can be explicitly separated from the human contribution and directly formulated by equations. Thus, the ITG is a very useful modeling tool for estimating the MIQ that was introduced as the index of machine intelligence. We propose a new human-oriented method for estimating the MIQ. This research will help engineers assess intelligent machines that are designed to perform human-like qualities with a high degree of autonomy