准确翻译专业名词和术语的重要性日益显现

首先概括性地描述了我国电信和网络技术领域所面临的一个愈来愈大的挑战,即专业名词和术语如何正确翻译、推广和使用,分析指出了此方面问题的根源及其严重性,并特别列举数例分析专业名词和术语翻译缺乏严肃性带来的不良影响和危害。最后,基于思考和分析,提出了若干改善和规范我国专业名词和术语翻译工作的建议。     

从通信企业角度谈标准与专利

从现代企业发展和竞争的角度和层次探讨标准和专利问题。主要涉及标准的作用和意义、标准的产生、专利的申报和保护、标准和专利的关系、基本专利和从属专利,以及标准和专利对企业的意义等。此外,还介绍了企业标准和专利战略及相关组织等。     

计算机网络信息安全保密技术探讨

当今社会计算机和互联网具有非常高效的信息数据处理和传输能力,使得网络信息的处理和传输变得十分迅速高效,计算机和互联网在当前社会多个领域中的普遍应用在很大程度改变了人们的工作和生活方式,也显著地提升了企业和单位的生产经营模式和效率。然而互联网信息同时具有信息共享开放、信息传播迅速和信息传输隐蔽等特点,这也导致个人、企业和组织单位信息数据被盗事件时常发生,给个人工作和生活造成困扰,也给企业和组织单位造成不同程度的经济损失。因此,为了确保个人,企业和组织单位信息的安全性,在实际对计算机网络信息技术进行应用中就非常有必要采取一些必要和有效的保密技术措施提升计算机和网络信息数据传输的可靠性和安全性,基于此,文章从多个角度对当前计算机及网络信息安全保密技术相关问题进行详细论述和探讨,并针对计算机网络信息系统安全系数提升的强化措施提出一些建议。     

基于云计算的计算机信息安全技术分析

随着云计算技术的快速发展和广泛应用,数据安全、隐私保护和访问控制方面的信息安全需求和挑战,成为云服务提供商和用户面临的主要问题。针对该问题,文中提出了基于云计算的信息安全策略和技术,包括先进的数据加密方法、强化的身份认证机制、精细化的访问控制策略以及基于云环境的入侵检测和防御系统,旨在全面提升云计算环境中的数据保护和系统安全性。实验结果表明,该安全策略和技术在云计算环境中提高了数据保护水平和系统安全性,降低了安全威胁和风险,增强了整个云服务体系的安全性和用户信任度。     

基于代数方法的信息安全风险评估管理模型

利用软件工程技术统一定义信息安全风险评估管理的要素和操作,在此基础上对信息安全风险评估管理的要素和关系进行统一描述和建模,提出一种基于代数方法的定量风险评估管理模型,该模型具有自动逻辑推理和自动搜索最佳安全策略控制措施来控制、降低和规避风险的特点,这种方法能够实现信息安全风险评估管理的自动化和安全策略的最优化.     

信息通信技术安全标准及其在多媒体和移动通信中的进展与应用(续1)

介绍ICT安全体系结构、模型和框架的基础上,重点对PKI和PMI在ICT安全中的纲领性地位和作用进行了阐述,并结合当前安全需求最迫切,应用最广泛、成长性最好的多媒体业务和移动通信业务,对ICT安全标准在电信业务和应用中的主要问题和用法进行了描述.     

霉菌对Ge、ZnS和ZnSe膜层的影响

采取自然环境试验和实验室霉菌试验相结合的方法,研究霉菌对Ge、ZnS和ZnSe镀增透膜和碳膜的影响。通过显微镜和扫描电镜对霉菌试验结果进行观察和检测。试验结果表明:未镀膜的Ge、ZnS和ZnSe材料抗霉能力较强;增透膜和碳膜抗霉能力较弱,容易长霉,其主要长霉原因是增透膜和碳膜为霉菌生长提供了营养成分。     

应对下一代信号处理系统的设计挑战——MathWorks发布MATLAB和Simulink高级信号处理新工具

MATLAB是一种高度集成的计算机语言以及一体化的设计、仿真、实现和测试平台,其提供了大量的工具和算法库供工程师分析、设计和仿真信号处理和通信系统,所需开发时间远远少于使用传统编程语言(如C和C++).MATLAB ,Simulink及相关信号处理产品能够帮助工程师分析从多种仪器和其他数据源采集到的信号,其功能包括信号采集、信号分析和处理,并能实现音频、视频、通信、雷达及其他算法密集型系统的验证和原型构建.     

洪礼和副省长视察江西电信和江西移动

8月13日和15日,洪礼和副省长在省通信管理局黄建新局长和省政府副秘书长张桃生的陪同下分别视察了江西电信和江西移动公司。洪副省长分别听取了省电信公司总经理柯瑞文和移动公司总经理简勤的工     

BSIM Model Research and Recent Progress

CMOS集成电路技术的进一步发展和不断出现的新技术应用要求我们持续地改进和增强VLSI电路设计和模拟的集约模型.基于此,美国Berkeley加州大学的BSIM团队对国际工业标准芯片仿真物理模型BSIM进行了一系列的研究和发展工作.本文分析和介绍了最近几年来本人参与其中的BSIM工程的研究和进展情况,包括BSIM5的研究,BSIM4的增强和BSIMSOI的发展.BSIM5是为满足RF和高速CMOS电路模拟要求而发展的新一代物理基础的BSIM模型,具有对称、连续和参数少的特点.BSIM4是一个成熟的工业标准仿真模型,在衬底电阻网络、隧穿电流、饱和电流原理和应力模型等方面有一系列的功能增强以支持技术进步的需求.BSIMSOI已经发展成可应用于SOI-PD和SOI-FD技术的普适模型,通过有效体电势△Vbi的改变进行器件工作模式的选择,可以帮助电路设计者实现PD和FD共存的设计趋势.     

Alternative Schemes for Dynamic Secure VPN Deployment in UMTS

Three alternative schemes for secure Virtual Private Network (VPN) deployment over the Universal Mobile Telecommunication System (UMTS) are proposed and analyzed. The proposed schemes enable a mobile node to voluntarily establish an IPsec-based secure channel to a private network. The alternative schemes differ in the location where the IPsec functionality is placed within the UMTS network architecture (mobile node, access network, and UMTS network border), depending on the employed security model, and whether data in transit are ever in clear-text, or available to be tapped by outsiders. The provided levels of privacy in the deployed VPN schemes, as well as the employed authentication models are examined. An analysis in terms of cost, complexity, and performance overhead that each method imposes to the underlying network architecture, as well as to the mobile devices is presented. The level of system reliability and scalability in granting security services is presented. The VPN management, usability, and trusted relations, as well as their behavior when a mobile user moves are analyzed. The use of special applications that require access to encapsulated data traffic is explored. Finally, an overall comparison of the proposed schemes from the security and operation point of view summarizes their relative performance. Christos Xenakis received his B.Sc. degree in computer science in 1993 and his M.Sc. degree in telecommunication and computer networks in 1996, both from the Department of Informatics and Telecommunications, University of Athens, Greece. In 2004 he received his Ph.D. from the University of Athens (Department of Informatics and Telecommunications). From 1998–2000 was with the Greek telecoms system development firm Teletel S.A., where was involved in the design and development of advanced telecommunications subsystems for ISDN, ATM, GSM, and GPRS. Since 1996 he has been a member of the Communication Networks Laboratory of the University of Athens. He has participated in numerous projects realized in the context of EU Programs (ACTS, ESPRIT, IST). His research interests are in the field of mobile/wireless networks, security and distributed network management. He is the author of over 15 papers in the above areas. Lazaros Merakos received the Diploma in electrical and mechanical engineering from the National Technical University of Athens, Greece, in 1978, and the M.S. and Ph.D. degrees in electrical engineering from the State University of New York, Buffalo, in 1981 and 1984, respectively. From 1983 to 1986, he was on the faculty of Electrical Engineering and Computer Science at the University of Connecticut, Storrs. From 1986 to 1994 he was on the faculty of the Electrical and Computer Engineering Department at Northeastern University, Boston, MA. During the period 1993–1994 he served as Director of the Communications and Digital Processing Research Center at Northeastern University. During the summers of 1990 and 1991, he was a Visiting Scientist at the IBM T. J. Watson Research Center, Yorktown Heights, NY. In 1994, he joined the faculty of the University of Athens, Athens, Greece, where he is presently a Professor in the Department of Informatics and Telecommunications, and Director of the Communication Networks Laboratory (UoA-CNL) and the Networks Operations and Management Center. His research interests are in the design and performance analysis of broadband networks, and wireless/mobile communication systems and services. He has authored more than 150 papers in the above areas. Since 1995, he is leading the research activities of UoA-CNL in the area of mobile communications, in the framework of the Advanced Communication Technologies & Services (ACTS) and Information Society Technologies (IST) programmes funded by the European Union (projects RAINBOW, Magic WAND, WINE, MOBIVAS, POLOS, ANWIRE). He is chairman of the board of the Greek Universities Network, the Greek Schools Network, and member of the board of the Greek Research Network. In 1994, he received the Guanella Award for the Best Paper presented at the International Zurich Seminar on Mobile Communications.     

澳洲插头产品的法规要求及标准解析

介绍了澳大利亚插头产品的法规要求及插头的型式、尺寸、参数和测试要点,分析了插头的电流额定值和配线之间的关系,强调了插销绝缘套的要求。对重要的试验项目,如弯曲试验、插销绝缘套的耐磨试验、温升试验、高温压力试验进行了说明。     

Wireless IP and Its Challenges for the Heterogeneous Environment

The tremendous momentum toward building a mobile wireless Internet using the Internet Protocol (IP) has thrust many challenges upon the technology developers and the operators. These challenges encompass the 2.5G, 3G, and future solutions and standards. Some of the key issues deal with supporting IP traffic across different wireless and MAC protocols, end-to-end QoS and mobility, traffic engineering and scalability, protection/restoration, operations and management, authentication/privacy/security, billing, and content and context aware networking. This article addresses the drivers, the issues, and solutions (wherever possible) in the above areas, and concludes with a summarization of the challenges that lie ahead.     

卫星遥感温室气体的大气观测技术进展

全球、区域及城市的碳浓度、碳源汇信息是应对气候变化、达成双碳目标、完善国际谈判、支持治理政策制定与执行的重要依据。国际认可的“自上而下” 方法将卫星观测作为基础的通量计算技术, 是验证温室气体排放清单的重要手段。系统介绍了温室气体的卫星探测载荷原理、类别和发展, 以及反演、估算CO2、CH4 和N2O 的浓度和排放通量的方法, 还有探测缺失和误差存在的影响因素等; 分析了对卫星探测温室气体能力提高的迫切需求, 浓度反演和排放量估算精度不足, 以及N2O、氟化物等其他温室气体遥感研究缺乏、地基遥感验证能力薄弱等问题; 最后总结了我国温室气体卫星遥感技术的发展趋势, 主要是面向主被动高时空分辨率卫星的研制应用、高精度多尺度排放量估算(特别针对城市、小区域和点源尺度)、氟化物遥感评估等主题, 以加强对碳排放的量化观测, 并增强对碳循环的理解, 提高感知和应对气候变化的能力。     

A Novel Local-Dielectric-Thickening Technique for Performance Improvements of Spiral Inductors on Si Substrates

A novel local-dielectric-thickening technique is presented for performance improvements of Si-based spiral inductors.This technique employs the processes of deposition,photolithography,and wet-etching,to locally thicken the oxide layer under the inductor,which can decrease the substrate loss and improve the inductor performance.Both the structures and processes are compact,economical,and compatible with CMOS processing.Several square spiral inductors with different inductances are fabricated,and the quality factors and the self-resonant frequencies both increase clearly with this proposed technique:for the 10,5，and 2nH inductors,the peak quality factors are effectively improved by 46.7%,49.7%，and 686%,respectively;however,the improvement percents of the selfresonant frequencies are more significant,which are 92.1%,91.0%,and no less than 68.1%，respectively.     

单目图像序列光流三维重建技术研究综述

由单目图像序列光流重建物体或场景的三维运动与结构是计算机视觉、图像处理与模式识别等领域的重要研究内容,在机器人视觉、无人机导航、车辆辅助驾驶以及医学影像分析等方面具有重要的应用。本文首先从精度与鲁棒性等方面对单目图像序列光流计算及三维重建技术近年来取得的进展进行综述与分析。然后采用Middlebury测试图像序列对HS、LDOF、CLG-TV、SOF、AOFSCNN 和 Classic ＋NL 等典型光流算法以及 Adiv、RMROF、Sekkati 和DMDPOF等基于光流的间接与直接重建方法进行实验对比分析,指出各对比方法的优点与不足,归纳各类方法的性能特点与适用范围。最后对利用分数阶微分模型、非局部约束、立体视觉以及深度线索解决亮度突变、非刚性运动、运动遮挡与模糊情况下光流计算及重建模型的局限性与鲁棒性问题进行总结与展望。     

机动6m抛物面天线车结构总体方案探讨

文章遵循策划、分解、综合及优化的总体方案研究思路,根据要求,提出了三个机动6 m抛物面天线车结构总体备选方案;针对系统结构组成,详细分析了天馈线、天线座、拖车以及系统标定等子系统所有可能的结构方案;最后综合权衡研究三个备选方案在技术、质量、成本、周期等多方面的优劣,选择了最佳结构总体方案,确保了所选方案具有合理性、可行性、经济性、先进性和科学性。实践证明,所选方案用户满意,实施效果良好。     

攀枝花广电工程项目管理策略与方法运用

工程项目管理就是要求工程建设任务在规定的时间和成本控制范围内达到预期的各项管控目的,它贯穿于项目的设计、施工准备与施工、使用与维护3个阶段,重点是施工准备与施工阶段的安全、质量、成本、进度、合同方面的控制与管理。结合工作实践,介绍了攀枝花市广电工程建设项目在施工准备与施工过程中的管理策略及其方法运用。     

一种智慧协同网络多参数的多路径路由算法

多路径路由技术采用多条路径同时传输,作为优化资源配置和负载均衡的重要技术,在路由可靠性、QoS路由、传输效率等多方面比单路径传输具有优势.现有互联网网络资源配置和路由机制相对静态和僵化,导致多路径技术的发展存在发展的局限性.现有多路径技术考虑在路由层面不利于多路径路由选择和计算,难以保证传输性能,降低网络传输效率.智慧协同网络能够动态感知网络需求,灵活适配网络资源,更好的支持路由可扩展性.本文在智慧协同网络架构下提出了一种智慧协同网络多参数的多路径路由算法.该算法制定了智慧协同网络多参数的多路径路由协议,对网络性能参数CPU占用率、往返时延(RTT)、带宽进行加权计算得到路径权重值,根据权重值进行流量分配.采用图论理论对网络流量分配及模型进行了分析.并在Mini-Net平台上进行了开发和实验,结果表明,该算法能够优化网络配置,减小往返时延,提高网络吞吐量,从而提高网络性能,实现负载均衡.     

On Fixed-Mobile Network Convergence

As the convergence in digital industry takes shape, the digital networks, both wireline and wireless, are also converging to offer seamless services and enhanced experience to the user. With the arrival of the mobile Internet the mobility is also moving into new areas, e.g., imaging, games, video, multimedia, and across different types of networks. In this paper we explore why, what, and how of the network convergence, and identify how the industry viewpoints align and differ. We also identify the key barriers to achieving true network convergence. We then discuss the role of the Internet Protocol (IP) as the common thread that enables network convergence, and the key industry and standards initiatives to actually provide solutions and the equipment to implement a cost-efficient and high performance converged network. Sudhir Dixit joined Nokia Research Center in 1996, where he is currently a Research Fellow and works on next generation wireless networks. From 1996 to 2003 he was a Senior Research Manager, focusing on IP/ATM, wireless, content networks, and optical networks. Prior to that he worked at NYNEX Science & Technology (now Verizon), GTE (now Verizon), Codex Motorola, Wang, Harris, and STL (now Nortel Europe Labs). He has published or presented over 150 papers, published three books, and holds 14 patents. He is on the Editorial Board of the IEEE Communications Magazine, Springer's Wireless Personal Communications Journal, and KIC's Journal of Communications and Networks. He received a B.E. degree from MANIT, Bhopal, India, an M.E. degree from BITS, Pilani, India, a Ph.D. degree from the University of Strathclyde, Glasgow, Scotland, and an M.B.A. degree from Florida Institute of Technology, Melbourne. He is a Fellow of IEE (UK) and IETE (India). He represents Nokia on the Steering Board of the Wireless World Research Forum, and is also Chair of the SIG on Self-Organization of Wireless World Systems.