Wedding……

兄弟结婚了，朋友结婚了，朋友的朋友结婚了；男的结婚了，女的结婚了，不男不女的也结婚了；有感情的结婚了，没感情的结婚了，认识不认识的结婚已经无所谓了……     

乱

江湖最近挺乱. 金融海啸了,经济危机了;奥巴马当选了,杨致远下课了;三聚氰胺走了又来了,"林书记"来了又走了;百度乱卖广告被央视曝光了,首富黄光裕涉嫌违法被拘查了;国家开始上万亿的花钱了,央行敢于一百零八个基点的降息了!     

临界连续模式功率因数校正器的高频数字控制研究

本文提出了一种无需检测电感电流及其过零点的简单数字控制方案，实现了临界连续模式功率因数校正器的控制。取得了功率开关管的ZVZCS，消除了整流二极管和快恢复二极管的反向恢复带来的损耗，提高了变换器的效率和可靠性；另外，数字控制器克服了模拟IC控制器的开关频率限制问题，消除了输入电流的低频畸变，提高了功率因数；同时，也降低了输入电感的值，降低了成本的同时提高了功率密度。为实现中小功率数字控制功率因数校正器的产品化提供了一个良好的解决方案。     

基于nRF905的无线通信的设计与实现

针对采用芯片nRF905的LED屏无线通信,分别给出了上位机和下位机的系统框图,分析了系统的功耗,比较了无线模块和串口通信的通信速率,验证了系统的可行性,设计了串口通信协议,为保证数据质量,设计了数据通信协议,针对串口数据的nRF905分包转发,设计了无线芯片通信协议,例举了状态机的5种状态,介绍了状态间的转换条件,巧妙地编程设计了通信数据的定时器检查,论述了基于状态机的嵌入式单片机软件编程。     

ATM原理概论

介绍了ATM技术的框架，详细描述了ATM的协议栈；介绍了ATM的信元结构，描述了信元边界判定算法，指出了特殊信元的结构；叙述了常用的ATM适配层协议AAL1－AAL5；简单介绍了ATM的维护功能；最后指出了影响ATM性能的重要参数。     

铝电解电容器技术的新进展

详细讨论了电子技术的发展对铝电解电容器的性能要求,提出了其技术对策,分析了存在的技术瓶颈,找出了它的技术出路,探讨了它的技术难点,给出了当前我国铝电解电容器行业的技术现状,指出了未来发展方向。     

干扰电子通信的要素以及应对策略的探讨

在当今的社会中,人们已经离不开电子通信了,其作为了一个新兴产业,并得到了良好的应用,对各行各业起到了促进作用,同时,传统的产业收到了冲击。我国的电子通信发展较快,达到了先进的水平,不过,由于发展时间较短,存在很多不足之处,拉低了整体水平。特别是干扰问题,严重影响了电子通信的发展。本文对电子通信进行了概述,探讨了干扰要素,并且,提出了相关的应对策略。     

一种采用电容共用技术的DC-DC开关电源软启动电路

开关电源DC-DC转换器已经在各种电子设备中取得了广泛的应用。软启动电路保证了DC-DC转换器的正常启动,防止了器件的损坏。从理论上分析了软启动电路原理,设计了一种新型的开关电源软启动电路,该电路引入了电容共用方法,通过与频率补偿电容共用节省了软启动电容,降低了应用成本。并给出了具体电路实现,Spectre仿真结果验证了这种电路的可行性。     

JPEG2000标准中ROI感兴趣区域编码的改进算法

分析了小波压缩的相关理论知识,着重对JPEG2000系统中的ROI功能进行了研究,实现了ROI的构思和实用算法,给出了性能分析,进而分析了目前ROI算法的局限性并给出了ROI的改进算法,做出了相应的实验结果分析.     

软件过程管理分析

CMMI利用了两个或多个单一学科的模型实现了组织的集成化过程改进,提炼了公共过程域,缩减了过程域的总数量,提高了软件开发质量和生产效率,推动了软件产业的发展。对CMMI的重要内容做了相应解释,并阐述了在应用CMMI中的经验和感想。     

Action research: lessons learned from a multi-iteration study of computer-mediated communication in groups

Action research has been presented as a promising approach for academic inquiry because of its focus on real world problems and its ability to provide researchers with a rich body of field data for knowledge building. Published examples of action research, however, are hard to find in business communication literature. What are the reasons for this? I try to provide a basis for answering this question as well as helping other business communication researchers-particularly those interested in computer-mediated communication issues-to decide whether and when to employ action research. I offer a first-person, confessional tale-like account of an action research study of computer-mediated communication in groups. In order to focus on the lessons learned, my focus is on the process of conducting action research and not on empirical results. Some of the situations and related lessons discussed are somewhat surprising and illustrate the complex nature of action research. The doctoral research, conducted over four years in Brazil and New Zealand, highlights the challenges associated with action research's dual goal of serving practitioners and the research community.     

Trends,Advances, and Challenges in Testbed-based Wireless Mesh Network Research

Wireless mesh networks are in the focus of research for more than a decade. After a short simulation based research period, several testbeds have been set up for the study of particular research topics. As wireless mesh networks are entering a phase of wide-spread commercial application, novel approaches for holistic research are required. In this paper we review the trends, advances, and challenges in experimentally driven wireless mesh network research. The evolution of the experimentation facilities is elaborated by distinguishing three generations of testbeds. Based on the review and the current trends of research, open issues are discussed. We introduce the Distributed Embedded Systems Testbed (DES-Testbed) at Freie Universität Berlin as an example of the current third generation. Further on, its features are elaborated and requirements for future holistic research of wireless networks are discussed.     

增强现实中虚实光照一致性研究综述

总结了近年来增强现实领域虚实光照融合技术的发展情况,对主要的分类进行了阐述,对于光照估计技术、基于设备采集的虚实光照一致性研究、基于场景理解的虚实光照一致性研究进行了介绍,并对国内外研究现状列举说明。此外,分析了增强现实中虚实光照一致性研究的一些技术难点,总结了现有的解决办法,对于虚实光照一致性研究的未来发展趋势,也进行了相应的展望。     

European research on future internet design - seamless content delivery in the future mobile internet

Future Internet has become the federating theme for European research on communication networks and services. At the core lies research on communication networks toward an efficient, scalable, and reliable future Internet coupled with research on the underlying technologies, in particular mobile and wireless access and optical networks. This article first presents the motivation for a bold initiative for future Internet research in Europe. In this context a changing business environment for telecommunications and the Internet, and the opportunities to provide future Internet services are discussed. From a technical perspective the limitations of the current Internet technology are outlined. The research activities that address the challenge of future Internet research are introduced under three main lines: future Internet architecture and network technologies, spectrum-efficient access to future networks, and converged infrastructures in support of future networks. Examples of the first promising approaches to significantly change the principles of the Internet architecture and protocols are presented.     

微透镜阵列的制作及其在光场成像中应用的研究进展

文章综述了微透镜阵列制备技术的最新研究进展,并将这些制备方法分为直接法和间接法进行了对比分析。回顾了微透镜在光场成像应用中的研究进展,指出目前该领域的研究重点是光场相机设计的新思路及提高分辨率的相应模型算法。     

热带无线电波传播研究进展及核心影响因素分析

热带无线电波传播研究是近年来电波领域重要的研究分支之一。综述了国际电信联盟(ITU)和国际无线电科学联盟(USRI)关于热带无线电波传播的主要研究内容和进展情况,分析了与热带无线电波传播相关的核心影响因素,包括雨衰、对流层闪烁、大气波导、植被衰落、盐度等,最后,指出了关于热带无线电波传播需要进一步研究的方向。相关内容可为热带无线电波传播的深入研究提供参考。     

Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

Functional materials with attractive electronic and photoelectronic properties show great promise in various fields. In recent decades, tremendous research efforts have been devoted to the design of photoactive and electroactive materials for qualitative and quantitative analysis of environmental pollutants. This review gives a concise overview on the fundamentals and recent research progress of functional material-based electrochemical and photoelectrochemical technology for environmental pollutant monitoring. The rational design of functional photoactive and electroactive materials with promoted electrochemical properties and basic signaling strategies for electrochemical and photoelectrochemical sensors are presented. Based on these insights, very recent achievements for electrochemical and photoelectrochemical environmental pollutant sensors are summarized from the viewpoint of various functional materials. At last, critical challenges and future research perspectives in this field are proposed and discussed to provide a backdrop for future research.     

Priorities in Basic Research on Diagnostic and Therapeutic Ultrasonic Radiation

Preparations for and results of a democratic expression of opinion by 15 scientists who ranked 29 potential research topics according to the priorities they perceived in April 1970 forbasic research on diagnostic and therapeutic ultrasonic radiation are reported. Recommendations are included on methods of funding and on the design, conduct, and reporting of such research. This paper is intended to be of interest to established workers in the field, recent graduates seeking research topics, and program directors of funding agencies.     

材料电磁脉冲屏蔽效能研究进展

首先总结了国外电磁脉冲的研究现状及屏蔽效能的测试方法,并分析了国内电磁脉冲屏蔽效能的测试方法及根据频域测量结果估计时域响应研究进展,然后介绍了屏蔽效能频域和时域表征方法,特别是近几年来电磁脉冲屏蔽效能的表征方法,最后指出了当前电磁脉冲屏蔽效能研究中需解决的问题及今后研究方向,对电磁脉冲作用下材料屏蔽效能的研究具有指导意义。     

CRUISE research activities toward ubiquitous intelligent sensing environments

Wireless sensor networks are expected to be one of the key enabling technologies in the near future. Ubiquitous intelligent sensing environments have a promising potential to enhance the everyday life of citizens, bringing important social benefits for each person and for society as a whole. Substantial research has contributed to progress in this field. However, there are still gaps to be filled. This article presents an overview of the Creating Ubiquitous Intelligent Sensing Environments (CRUISE) project and identifies challenges in the research on WSNs. It focuses on outlining the consortium?s vision and strategy for the evolution of research. Key issues for target sensor network applications and current research orientations in CRUISE are described. Future work within the project focus areas is identified.