静电粉末喷涂

本文介绍了静电粉末喷涂的工作原理，并与传统烧漆工艺进行了对比，提出了适宜于静电粉末喷涂的工件情况。     

静电粉末喷涂塑试验与应用

简介了静电粉末喷涂的基本原理，叙述了粉末涂料的选择、设备的选型、喷涂前处理，列举了影响喷涂质量的各种因素，指出了施工注意事项。     

静电粉末喷涂喷塑试验与应用

简介了静电粉末喷涂的基本原理，叙述了粉末涂料的选择、设备的选型、喷涂前处理，列举了影响喷涂质量的各种因素，指出了施工注意事项。     

粉末涂料在电子产品涂装中的应用

粉末涂料静电喷涂是近年发展起来的一项新材料、新工艺。其工艺流程简单、无污染、材料利用率高。涂层具有高厚度、手感好、色彩鲜艳的特点。是国家经委、电子工业部要求在“七五”计划期间大力推广应用的重点新工艺项目。我厂通过一段时间的研究试验,已成功地把粉末涂料静电喷涂技术应用于电子产品外壳涂装。提高了产品外观质量和竞争力,取得了良好的经济效益,有效地治理了环境污染。本文结合电子行业的特点,对粉末涂料静电喷涂的工艺特点、原理和操作流程作较详细的介绍,并以试验数据和实践效果论证其应用于电子行业涂装工艺中的可行性和实用价值。     

CNT/CNP-TiN涂层的高压静电喷涂技术制备及光吸收性能研究

以包含碳纳米颗粒(CNP)的油墨、碳纳米管(CNT)和TiN纳米粒子为原料,采用高压静电喷涂技术在铝基底上沉积了CNT/CNP-TiN涂层.研究了静电电压、喷涂高度和喷涂量对涂层光吸收性能的影响.结果 表明,静电电压为9 kV、喷涂高度为30 mm和喷涂量为35μL时制备的CNT/CNP-TiN涂层光吸收性能最佳,在400～1400 nm波长范围内的平均吸收率高达97.1％.TiN纳米粒子、CNT和CNP搭建成蜂窝状团簇,团簇间形成的几百纳米到微米级的光学腔以及团簇内的几十到几百纳米的光学腔可捕获不同波段的光,拓宽吸收带宽,并通过多次反射增强吸收.此外,TiN纳米粒子、CNT和CNP具有良好的光散射效应,且大部分散射光可被光学腔捕获,进一步提高吸收率.     

静电喷涂新工艺的探讨

本文是静电粉末喷涂工艺生产实践的总结,它介绍了粉末喷涂工艺特点、工作原理、工艺装备、施工工艺,以及对环氧粉末、巨旨粉末、油漆涂层的性能对比实验的结果作了简要的分析。本文还就生产过程中遇到的影响喷涂质量的因素及施工中的安全问题进行了理论分析。文章最后还从提高经济效益方面进行了阐述。     

用单片微机的高压静电发生器

高压静电发生器主要运用于静电粉末喷涂、静电植绒、静电除尘等方面。最常见为晶体管式高压静电发生器。根据生产现场的长期使用情况表明,由于操纵使用不慎而引起的高压静电发生器的输出高压产生强烈电弧打火,甚至高压短路,是导致设备故障和损毁的主要原因,同时,强烈的电弧火花会严重危及生产安全。如何解决这些弊病,是对设计新型高压静电发生器所提出的要求。为此,我们采用美国INTEL公司     

静电喷涂的研究

近年来在氧化物阴极的涂复方法中,出现了一种所谓"静电喷涂"的新工艺.由于这种方法能制得表面极光滑的氧化物阴极、消耗发射浆少、涂层厚度任意、操作与控制方便、设备简单等一系列的优点,因而它一问世就引起了人们的重视.我们经几年的研究试验,初步掌握了这一新工艺,并自制了一台适于小批生产用的静电喷涂半自动化设备.这里想就我们的一些研究结果作一简单的介绍.     

防焊小孔通孔制作探讨

印制板通孔的孔径越来越小,目前针对孔径0.3 mm小孔的通孔制作,防焊一般采用静电喷涂或者塞孔生产制作,但静电喷涂方式设备昂贵,生产营运成本昂贵。本文通过试验在现有常规网版印刷的基础上,针对各种孔径的露环或不露环的不同要求设计不同的印刷及对位照相底片,对比不同的印刷方式,进行0.3 mm以下小孔通孔的制作,得到最优的工程资料设计及生产方式。     

塑料粉末静电喷涂技术在天线中的应用

为了提高天线产品的外观质量物市场竞争力，我们开展了塑料粉末静电喷涂工艺技术研究。通过对喷涂材料和喷涂设备的选型，施工工艺方法，涂膜的性能，局部涂覆方法及返修工艺等工艺技术的研究，已将该项先进技术应用于天线产品，提高了波导网络，机箱，机柜，面板，天线面等制件的涂装质量和防护性能。     

胆小管超微细胞酶学研究

以电镜细胞化学的方法,观察了小鼠胆小管酶的分布。观察的12种酶中,NDPase和G6Pase三种酶分布于胆小管微绒毛;AlPase、Na~+-K~+ATPase、Mg~(++)-ATPase、Ca~(++)-ATPase、CMPase、ACase和5＇-Nase等7种酶分布于胆小管微绒毛,也分布于肝细胞邻接面细胞膜和Disse间隙微绒毛;ACPase、细胞色素氧化酶以及线粒体ATPase不分布胆小管微绒毛,也不分布Disse间隙微绒毛和肝细胞膜。据信,胆小管微绒毛上的酶参与胆汁成份的转运,提供转运所需能量以及还可能与某些代谢过程有关。本实验中磷酸水解酶类使用的铈基法及亚铁氰化钾半还原的锇酸后固定法,效果优于铅法。     

An Efficient Adaptive Grouping for Single Code Assignment in WCDMA Mobile Networks

For achieving high utilization and efficient code management of the OVSF code tree in 3G WCDMA networks, several researches have extensively studied. Based on combining both the code assignment and the reassignment mechanisms, it increases obviously high utilization and reduces completely the code blocking. Nevertheless, the required rate of traffic should be powers of two of the basic rate, i.e. 1R, 2R, 4R, …, etc., which is impractical and results in wasting the system bandwidth while the required rate is not powers of two of the basic rate. Several multi-code assignment mechanisms have proposed to reduce the waste rate. Nevertheless, these methods bring two inevitable drawbacks including, high complexity of handling multiple codes, and increasing the cost of using more rake combiners at both the base stations and mobile nodes. Therefore, we propose an adaptive grouping code assignment herein to provide a single channelization code for any possible rate of traffic, even though the required rate is not powers of two of the basic rate. Based on the dynamic programming algorithm, the adaptive grouping approach forms several calls into a group. Then it allocates a subtree to the group and adaptively shares the subtree codes for these calls in the concept of time-sharing of slots during a group cycle time. Therefore, the waste rate and code blocking are thus reduced obviously while using a single rake combiner. Since the delay problem may be occurred in such a time-sharing approach, we propose two schemes of cycle interleaving methods to reduce delay. Numerical results indicate that the proposed adaptive grouping approach reduces significantly the waste rate and thus increases the system utilization. Moreover, the proposed cycle interleaving scheme reduces data delay significantly. Ren-Hung Hwang received his M.S. and Ph.D. degrees in computer science from University of Massachusetts, Amherst, Massachusetts, USA, in 1989 and 1993, respectively. He joined the Department of Computer Science and Information Engineering, National Chung Cheng University, Chia-Yi, Taiwan, in 1993, where he is now a full Professor and the Chair of the Department of Communication Engineering. His research interests include Internet QoS, peer-to-peer infrastructure design, and 3G QoS. Ben-Jye Chang received his M.S. degree in computer engineering from University of Massachusetts, Lowell, in 1991 and the Ph.D. degree in computer science and information engineering from National Chung-Cheng University, Taiwan, in 2001. He joined the Department of Computer Science and Information Engineering faculty at Chaoyang University of Technology, Taiwan, in 2002, where he is currently an Associate Professor. His research interests include QoS-based networks, QoS wirless networking, resource management for wireless networks and mobile cellular networks, and performance evaluation of networks. Min-Xiou Chen received the BS degree in computer science and information engineering from Tung Hai University, Tai-Chung, Taiwan, in 1996, and the MS and PhD degrees in computer science and information engineering from National Chung Cheng University, Chia-Yi, Taiwan, in 1998 and 2005, respectively. He is now an assistant professor at the Department of Computer Science and Information Engineering, Chung Hua University, Hsin-Chu, Taiwan. His research interests include wireless communication, SIP, sensor network and resource management in WCDMA systems. He is a member of the IEEE. Kun-Chan Tsai received the BS degree in information engineering and computer science from Feng Chia University, Taichung, Taiwan, in 2001, and the MS degree in computer science and information engineering from National Chung Cheng University, Chia-Yi, Taiwan, in 2003. His research interests include wireless communications and resource management in WCDMA systems.     

基于属性密码体制的区块链安全技术研究进展

区块链是一种集合了分布式存储、点对点传输、共识机制、密码学算法和智能合约等关键技术的分布式账本,具有去中心化、不可篡改、透明化等特性.近年来区块链技术的安全性问题逐渐显露,阻碍了区块链应用的发展.本文介绍了区块链的基本概念与安全模型,分析了区块链的安全性问题;然后,基于属性密码体制,从访问控制、密钥管理、数据隐私保护这三个方面分析了区块链安全技术的各类研究,论述了主要的解决方案的特点;最后,总结了基于属性密码体制的区块链安全技术研究进展,并对未来的研究工作进行了讨论.     

Service Composition for Mobile Environments

Service Composition, that is, the development of customized services by discovering, integrating and executing existing services has received a lot of attention in the last couple of years with respect to wired-infrastructure or Internet web services. With the advancement in the wireless technology and rapid deployment of mobile devices, we envision that in the near future wirelessly connected mobile devices in a given vicinity will also provide services that can be leveraged in the composition process. This is particularly true of what have been described as “pervasive computing” environments. However, wired-infrastructure based service composition architectures are not designed to consider the various factors like mobility, device heterogeneity, resource variability and reliability in a mobile environment. In this paper, we describe the issues related to service composition in mobile environments and evaluate criteria for judging protocols that enable such composition. We present a distributed architecture and associated protocols for service composition in mobile environments that take into consideration mobility, dynamic changing service topology and device resources. The composition protocols are based on distributed brokerage mechanisms and utilize a distributed service discovery process over ad-hoc network connectivity. We present simulation results of our protocols, and compare them with a centralized service composition protocol traditionally used for wired-infrastructure environments. The results show that our approach clearly outperforms the existing centralized approaches, and that our protocols are able to adapt and better utilize the changing service topology and resources in a mobile environment.This work is supported in part by NSF awards 9875433 and 0070802, DARPA DAML program and IBM. Dipanjan Chakraborty is a Ph.D candidate and a research member of ebiquity research group at University of Maryland, Baltimore County (UMBC). His reserach is in the areas of mobile and pervasive computing environments, mobile and e-commerce, peer-to-peer systems with special interests in the fields of service discovery, information aggregation and composition, ad-hoc network application-centric routing, agent-based systems. He specializes in the development and modeling of distributed architectures to enable mobile and pervasive commerce in ubiquitous environments. His thesis is in the area of service discovery and composition for pervasive environments. He has been a fellow of IBM during the 3 years of his Ph.D candidacy. Anupam Joshi is an Associate Professor of Computer Science and Electrical Engineering at UMBC. Earlier, he was an Assistant Professor in the CECS department at the University of Missouri, Columbia. He obtained a B. Tech degree in Electrical Engineering from IIT Delhi in 1989, and a Masters and Ph.D. in Computer Science from Purdue University in 1991 and 1993 respectively. His research interests are in the broad area of networked computing and intelligent systems. His primary focus has been on data management for mobile computing systems in general, and most recently on data management and security in pervasive computing and sensor environments. He has created agent based middleware to support discovery, composition, and secure access of services/data over both infrastructure based (e.g. 802.11, cellular) and ad-hoc wireless networks (e.g. Bluetooth). He is also interested in Semantic Web and Data/Web Mining, where he has worked on personalizing the web space using a combination of agents and soft computing. His other interests include networked HPCC. He has published over 50 technical papers, and has obtained research support from NSF, NASA, DARPA, DoD, IBM, AetherSystens, HP, AT&T and Intel. He has presented tutorials in conferences, served as guest editor for special issues for IEEE Personal Comm., Comm. ACM etc., and served as an Associate Editor of IEEE Transactions of Fuzzy Systems from 99-03. At UMBC, Joshi teaches courses in Operating Systems, Mobile Computing, Networking, and Web Mining. He is a member of IEEE, IEEE-CS, and ACM. Tim Finin is a Professor in the Department of Computer Science and Electrical Engineering at the University of Maryland Baltimore County (UMBC). He has over 30 years of experience in the applications of Artificial Intelligence to problems in information systems, intelligent interfaces and robotics and is currently working on the theory and applications of intelligent software agents, the semantic web, and mobile computing. He holds degrees from MIT and the University of Illinois. Prior to joining the UMBC, he held positions at Unisys, the University of Pennsylvania, and the MIT AI Laboratory. Finin is the author of over 180 refereed publications and has received research grants and contracts from a variety of sources. He has been the past program chair or general chair of several major conferences. He is a former AAAI councilor and is a member of the the board of directors of the Computing Research Association. Yelena Yesha received the B.Sc. degree in Computer Science from York University, Toronto, Canada in 1984, and the M.Sc. and Ph.D degrees in Computer and Information Science from The Ohio State University in 1986 and 1989, respectively. Since 1989 she has been with the Department of Computer Science and Electrical Engineering at the University of Maryland Baltimore County, where she is presently a Verizon Professor. In addition, from December, 1994 through August, 1999 Dr. Yesha served as the Director of the Center of Excellence in Space Data and Information Sciences at NASA. Her research interests are in the areas of distributed databases, distributed systems, mobile computing, digital libraries, electronic commerce, and trusted information systems. She published 8 books and over 100 refereed articles in these areas. Dr. Yesha was a program chair and general co-chair of the ACM International Conference on Information and Knowledge Management and a member of the program committees of many prestigious conferences. She is a member of the editorial board of the Very Large Databases Journal, and the IEEE Transaction on Knowledge and Data Engineering, and is editor-in-chief of the International Journal of Digital Libraries. During 1994, Dr. Yesha was the Director of the Center for Applied Information Technology at the National Institute of Standards and Technology. Dr. Yesha is a senior member of IEEE, and a member of the ACM.This revised version was published online in August 2005 with a corrected cover date.     

An Investigation of MIMO Performance in the Indoor Ricean Environment

In this paper, we investigate the Multiple-Input Multiple-Output (MIMO) channel capacity in indoor Ricean channels based on MIMO channel measurements at 2.45 GHz. The measured data is analysed using a super resolution parameter estimation algorithm. Our results demonstrate that the line-of-sight (LOS) component in a Ricean scenario influences indoor MIMO performance through increased spatial correlation between array elements. We found that indoor channels with higher values of Ricean K factor have smaller numbers of effective multipath components and increased spatial correlation. Measurement results also showed that, the effect of varying antenna height on indoor MIMO capacity is also due to the spatial correlation of multipath propagation and has a close relationship with the separation between the transmitter and receiver. Zhongwei Tang is currently with the Wireless Technologies Laboratory at CSIRO. He was with Microwave and Wireless Technology Research Laboratory (MWTRL), Information and Communication Group, Faculty of Engineering of the University of Technology Sydney, Australia, where he pursued his Ph.D. Degree. His current research interests include RF propagation, MIMO Space-Time channel measurements, characterization and channel modelling, smart antennas, MIMO systems and array signal processing. Ananda S. Mohan is currently a member of the Faculty of Engineering, University of Technology, Sydney (UTS), Australia where he leads research on antennas, microwaves, wave propagation, and wireless technology. He received a Ph.D. degree in electrical communication engineering from the Indian Institute of Technology, Kharagpur, India and was a Scientist and Senior Scientist at the Research and Training Unit for Navigational Electronics, Hyderabad, India. At UTS, he directed the Sydney microwave design resource centre and was the associate program leader of the co-operative research centre for satellite systems. He currently directs the microwave and wireless technology research laboratory and a core member of the university research centre on health technologies. His current teaching and research interests include wireless mobile communications, microwaves and antennas, smart antennas and applications of microwave and wireless technology in medicine and has obtained many competitive research grants in these areas. Dr. Mohan was a co-recipient of the Priestly memorial award from the Institute of Radio and Electronic Engineers (IREE), Australia. He was a member of the organizing and technical Program Committees of the IEEE Globecom'98, APMC 2000, and International Symposium on Wireless Systems and Networks, 2003 and IASTED International Conference on Antennas, Radar, and Wave Propagation, for 2004 and 2005.     

Survey on data security and privacy-preserving for the research of edge computing

With the rapid development and extensive application of the Internet of things (IoT),big data and 5G network architecture,the massive data generated by the edge equipment of the network and the real-time service requirements are far beyond the capacity if the traditional cloud computing.To solve such dilemma,the edge computing which deploys the cloud services in the edge network has envisioned to be the dominant cloud service paradigm in the era of IoT.Meanwhile,the unique features of edge computing,such as content perception,real-time computing,parallel processing and etc.,has also introduced new security problems especially the data security and privacy issues.Firstly,the background and challenges of data security and privacy-preserving in edge computing were described,and then the research architecture of data security and privacy-preserving was presented.Secondly,the key technologies of data security,access control,identity authentication and privacy-preserving were summarized.Thirdly,the recent research advancements on the data security and privacy issues that may be applied to edge computing were described in detail.Finally,some potential research points of edge computing data security and privacy-preserving were given,and the direction of future research work was pointed out.     

基于GNSS_CN高速公路自动收费系统的研究与设计

本文独创性的提出将多卫星定位系统融合来提高定位精度,并采用高可靠、高精度的定位应用于高速公路等收费系统中,实现了基于GNSS/CN高速公路收费车载单元的研究与设计.介绍了车载单元工作原理,以及硬件和软件系统的设计方案,通过硬件和软件设计与调试,相比原有单一卫星定位系统,在多卫星定位系统融合的基础上,实现了更高精度的定位.车载单元利用GPS或/和BD等系统获取车辆的位置、速度等信息,通过蜂窝网络和控制中心进行通信,将位置、速度等信息发送到控制收费中心,可在控制收费中心和车载单元上进行地图匹配,动态显示车辆位置、速度以及收费等信息.该成果已成功试运行.     

Essential Considerations in Implementing the Smart Antenna System for Downlink Beamforming

This paper addresses some essential problems that have to be taken into consideration in implementing the smart antenna base station (SABS) for downlink beamforming. In order to provide proper downlink beamforming as well as uplink beamforming, a pragmatic procedure of automatic calibration is proposed. Through the experimental test, we confirm that the proposed calibration technique has eliminated the problem of the phase differences of the signal path associated with each antenna. Also, in this paper, we first analyze the multipath condition under which the auxiliary pilot becomes indispensable for detecting the data transmitted on the data channel and what happens if the auxiliary pilot is not available. Then, the performance of the downlink beamforming utilizing the auxiliary pilot is analyzed through the computer simulations. Finally, we present a comparison of downlink communications to uplink ones in terms of throughputs available at each of uplink and downlink communications. Weon-Cheol Lee received the B.S, M.S, and Ph.D. degree in Electronic Communication Engineering from Hanyang University, Korea, in 1992, 1994, 2005, respectively. From 1994 to 2000, he was with LG Electronic Inc., where he had worked for developing the digital VCR, digital cable modem, digital TV. Since 2001, he has been a professor with department of information and communications, Yong-in Songdam College, Korea. His research interests include smart antennas, mobile communications beyond the third generation, digital broadcasting technology, and communication signal processing. Dr. Lee also received the Best Research Paper Award and Excellent Research Engineer Award from LG Electronics, respectively. Seungwon Choireceived the BS degree from Hanyang University, Seoul, Korea, and the M.S. degree from Seoul National University, Korea, 1980 and 1982, respectively, both in electronics engineering, the MS degree (computer engineering) in 1985, and the PhD degree (electrical engineering), in 1988, both from Syracuse University, Syracuse, NY. From 1988 to 1989 he was with the Department of Electrical and Computer Engineering of Syracuse University, Syracuse, NY, as an Assistant Professor. In 1989 he joined the Electronics and Telecommunications Research Institute, Daejeon, Korea. From 1990 to 1992 he was with the Communications Research Laboratory, Tokyo, Japan, as a Science and Technology Agency fellow, developing the adaptive antenna array systems and adaptive equalizing filters. He joined Hanyang University, Seoul, Korea, in 1992 as an assistant professor. He is a professor in the School of Electrical and Computer Engineering of Hanyang University. Since 2003, Dr. Choi has been serving as a Vice Chairman and the representative of the ITU region 3 for SDR (Software Defined Radio) Forum and as a Director of the HY-SDR Research Center, MIC, Korea. His research interests include digital communications and adaptive signal processing with a recent focus on the implementation of the smart antenna systems for both mobile communication systems and wireless data systems. Jae-Moung Kim received the BS degree from Hanyang University, Korea in 1974, the MSEE degree from University of Southern California, USA in 1981, and the PhD degree from Yonsei University, Korea in 1987. He was a Vice President of Radio {&} Broadcasting Technology Laboratory and Director of Satellite Communication System Department at Electronics and Telecommunications Research Institute (ETRI) from September 1982 to March 2003. Since April of 2003, he has been a Professor in the Graduate School of Information Technology and Telecommunications, Inha University. He is a board member of directors of Korean Institute of Communication Science (KICS), a Vice President of Korea Society of Broadcast Engineers (KOSBE) and a senior member of IEEE. His research background is telecommunication systems modeling and performance analysis of broadband wireless access systems, mobile communications, satellite communications and broadcasting transmission technologies.     

Advanced Interfacial Design for Electronic Skins with Customizable Functionalities and Wearability

Electronic skins (E-skins), which are intelligent extensions of the human skin, are in great demand because of the rapid development of information technology and intelligence in human civilization. Essentially, E-skin systems are composed of functional and interface components. The function portion carries out various functions like sensing, power production, and therapy. In addition to ensuring consistent wear and comfort, the interface of the E-skin system is necessary for the transfer of energy or mass between the skin and the functional components of the E-skin system. The interface serves as the foundation, conduit, and link between the skin and functional components of E-skin systems. The wearability and functionality of the E-skin system are significantly impacted by the interfacial adhesion and the intermediate effect. It is crucial to build the interface in accordance with the functions of the E-skin system. However, there are few reviews on the impact of the interface on the functionality and wearability of E-skins. Here, the design of the E-skin interface is thoroughly reviewed, taking into account how skin adhesion mechanisms affect wearability and function. At last, the future development direction and perspective of next-generation E-skin systems are presented.     

Clock Feedthrough in CMOS Analog Transmission Gate Switches

An analysis of clock feedthrough in CMOS analog transmission gate (TG) switches is presented in this paper. The mechanism for clock feedthrough and a related model of a transmission gate switch are established in the current-voltage domain. A region map is developed for the TG switch during the period when both devices are turned off. The region map is further divided into zones. From these region and zone maps, the sign and relative magnitude of the clock feedthrough noise can be efficiently estimated for different signal levels. Placing the input voltage near half of the power supply voltage is a useful technique for minimizing clock feedthrough noise. A model of clock feedthrough noise as compared with SPICE simulations exhibits less than 3% error. This research was supported in part by the Semiconductor Research Corporation under Contract No. 99-TJ-687, the DARPA/ITO under AFRL Contract F29601-00-K-0182, grants from the New York State Office of Science, Technology & Academic Research to the Center for Advanced Technology—Electronic Imaging Systems and to the Microelectronics Design Center, and by grants from Xerox Corporation, IBM Corporation, Intel Corporation, Lucent Technologies Corporation, and Eastman Kodak Company. Weize Xu received the B.S. degree from Nanjing University of Posts and Telecommunications, China in 1982, and the M.S. degrees from the University of Rhode Island in 1993, both in electrical engineering. Since 1997, he has been a senor research engineer and analog IC design specialist at Eastman Kodak Company. His research interests include high speed analog IC designs, pipelined A/D converter, low power switched capacitor circuit analysis and design, CMOS image sensor design, and analysis of noise in mixed signal ICs. He currently is a Ph.D candidate at the University of Rochester. Eby G. Friedman (S'78-M'79-SM'90-F'00) received the B.S. degree from Lafayette College in 1979, and the M.S. and Ph.D. degrees from the University of California, Irvine, in 1981 and 1989, respectively, all in electrical engineering. From 1979 to 1991, he was with Hughes Aircraft Company, rising to the position of manager of the Signal Processing Design and Test Department, responsible for the design and test of high performance digital and analog IC's. He has been with the Department of Electrical and Computer Engineering at the University of Rochester since 1991, where he is a Distinguished Professor, the Director of the High Performance VLSI/IC Design and Analysis Laboratory, and the Director of the Center for Electronic Imaging Systems. He also enjoyed a sabbatical at the Technion—Israel Institute of Technology during the 2000/2001 academic year. His current research and teaching interests are in high performance synchronous digital and mixed-signal microelectronic design and analysis with application to high speed portable processors and low power wireless communications. He is the author of more than 250 papers and book chapters, several patents, and the author or editor of seven books in the fields of high speed and low power CMOS design techniques, high speed interconnect, and the theory and application of synchronous clock distribution networks. Dr. Friedman is the Regional Editor of the Journal of Circuits, Systems, and Computers, a Member of the editorial boards of the Proceedings of the IEEE, Analog Integrated Circuits and Signal Processing microelectronics Journal, and Journal of VLSI Signal Processing, a Member of the Circuits and Systems (CAS) Society Board of Governors, and a Member of the technical program committee of a number of conferences. He previously was the past Editor-in-Chief of the IEEE Transactions on VLSI Systems, a Member of the editorial board of the IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Chair of the IEEE Transactions on VLSI Systems steering committee, CAS liaison to the Solid-State Circuits Society, Chair of the VLSI Systems and Applications CAS Technical Committee, Chair of the Electron Devices Chapter of the IEEE Rochester Section, Program or Technical chair of several IEEE conferences, Guest Editor of several special issues in a variety of journals, and a recipient of the Howard Hughes Masters and Doctoral Fellowships, an IBM University Research Award, an Outstanding IEEE Chapter Chairman Award, and a University of Rochester College of Engineering Teaching Excellence Award. Dr. Friedman is a Senior Fulbright Fellow and an IEEE Fellow.