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Conferences, Lectures, & Seminars
Events for April
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A Systematic Study of Molecular Electronics
Tue, Apr 12, 2005 @ 02:10 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"A Systematic Study of Molecular Electronics:
From Molecules to Electronic Switching Devices to Large Scale Nanowire Crossbar Circuits"Dr. Yi Luo
(California Institute of Technology)The field of molecular electronics, where molecules are used as active components in electronic circuits, provides promising approaches for building ultra-small, energy efficient, and very fast devices for memory and logic applications. In recent years, a substantial amount of interest has been drawn to this attractive and extremely interdisciplinary field.In this talk, I will present a comprehensive study of a molecular electronic system, including design, fabrication, and characterization of chemical materials, switching devices, and multifunctional circuits. A focal point of this research has been to integrate a series of bi-stable molecules into molecular switch tunnel junctions. We have successfully demonstrated electrical ON/OFF switching based on the chemical bi-stability of these molecules. Important issues in material preparation, device fabrication, and electrical characterization will be discussed. In addition, I will focus on scaling of these devices and crossbar circuits from micro-scale to nano-scale. The latest system contains 22.5Kbits at a density of 1011/cm2 (33 nm full pitch). I will also discuss a scheme in which multi-functional units, e.g. memory, logic, and sensing, can be integrated into a large scale nanowire crossbar array system.Location: Olin Hall of Engineering (OHE) - 100D, Studio F
Audiences: Everyone Is Invited
Contact: Alma Hernandez
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Digitally Assisted Analog Circuit Design for Communication SoCs
Thu, Apr 14, 2005 @ 03:00 PM - 04:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
DISTINGUISHED LECTURER SERIES"Digitally Assisted Analog Circuit Design for Communication SoCs"Prof. TERESA MENGStanford UniversityAbstract:The availability of high-speed network infrastructure and low-cost CMOS technology has dramatically changed the landscape of broadband communication in the past few years. To accommodate the ever increasing data rates, communication SoC design is no longer merely a circuit integration problem. The implementation of high-throughput communication SoCs with a power constraint requires a new design strategy for the embedded analog components. One solution is to exploit the computational capability of digital circuitry to continuously calibrate the mixed-signal and analog circuits and compensate for their ever more tenuous realization as technology is scaled and supply voltages are reduced. To support the computational requirements, digital processing architectures will be developed and implemented which have the efficiency of dedicated circuitry while allowing the flexibility to adapt to changing environments, algorithms, waveforms and circuit performance. In this talk, adaptive optimization techniques in combination with on-chip calibration will be applied to reducing the power consumption of an OFDM transmitter and a high-speed ADC. State-of-the-art developments in digitally assisted communication SoCs will be discussed, along with the opportunities for future innovations.Bio:Teresa H. Meng is the Reid Weaver Dennis Professor of Electrical Engineering at Stanford University. Her research activities during the first 10 years at Stanford included low-power circuit and system design, video signal processing, and wireless communications. She has received many awards and honors for her research work at Stanford: an NSF Presidential Young Investigator Award, an ONR Young Investigator Award, an IBM Faculty Development Award, a Best Paper Award and a Distinguished Lecturer Award from the IEEE Signal Processing Society, the Eli Jury Award from U.C. Berkeley, and awards from AT&T, Okawa Foundation and other industry and academic organizations. In 1999, Dr. Meng took leave from Stanford and founded Atheros Communications, Inc., which provides leading wireless system solutions for transparent connections of data, video, and voice communications. As a result of this effort, Dr. Meng was named one of the Top 10 Entrepreneurs in 2001 by Red Herring, Innovator of the Year in 2002 by MIT Sloan School eBA, the CIO 20/20 Vision Award in 2002, and the DEMO@15 World-Class Innovator Award in 2005. She returned to Stanford in 2000 to continue her research and teaching at the University. Dr. Meng's current research interests focus on circuit optimization, neural signal processing, and computation architectures for future scaled CMOS technology. She has given plenary talks at major conferences in the areas of signal processing and wireless communications. She is the author of one book, several book chapters, and over 200 technical articles in journals and conferences. Dr. Meng is a Fellow of the IEEE. She received her Ph.D. in EECS from the University of California at Berkeley in 1988.Host: Prof. Peter Beerel, x04481 ***A reception will follow the seminar at 4:00p.m.
Location: Ethel Percy Andrus Gerontology Center (GER) - ontology Auditorium
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Re-Engineering the Engineering Education
Fri, Apr 15, 2005 @ 10:30 AM - 11:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Dr. Jung Uck SeoABSTRACT: A new look at the traditional Engineering educational model and how emerging global trends have resulted in a shift in the current career paradigm. Demands and requirements from employers have set in motion the need for enhanced educational engineering skills.BIO: Dr. Seo is Chief Executive Officer of the e-trade Program Office, Korean International Trade Association. Among other achievements in his noteworthy career he was President and Vice Chairman of SK Telecom, where he commercialized the CDMA cellular mobile telephone for the first time in the world; President of Korean Council on System Engineering; Chair Profession of both Sunchon National University an Myongji University; Minister in the Ministry of Science and Technology; and Chairman of the Korea Foundation of International Cooperation of Science. Dr. Seo has also received numerous academic, business and technological distinctions and honors throughout his career.Host: Professor Keith M. Chugg, chugg@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Nanophotonics for Communications and Medicine
Thu, Apr 21, 2005 @ 10:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"Nanophotonics for Communications and Medicine"Mehmet Fatih Yanik
(Stanford University, Applied Physics)Host: Prof. Won NamgoongAbstract:
The use of dynamic photonic bandgap nano-structures opens fascinating new possibilities for controlling the classical and quantum properties of light. The spectrum of light can be molded almost arbitrarily with small refractive index modulations, leading to unprecedented information processing capabilities on-chip. As examples of such capabilities, we show how light pulses can be coherently stopped, stored, and time-reversed with linear optics and modulators. Photonic bandgap nano-structures can confine photons to sub-micron scale volumes, which leads to ultra-strong enhancement of optical non-linearities. We discuss how such non-linearities can be used to make fast micron scale low-power photonic transistors and memories, with switching energies close to that of CMOS electronic circuits. We show how nano-scale all-optical devices can be systematically cascaded on-chip without optical isolators, even in the presence of reflections. The rest of the talk introduces the femtosecond laser nano-surgery technique, which, for the first time, enabled study of nerve regeneration in its evolutionarily simplest form, and led to very unusual observations.Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Alma Hernandez
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Optimal Flooding Search in a Large Network
Thu, Apr 28, 2005 @ 02:30 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Prof. Mingyan Liu, University of MichiganAbstract:In this talk I will consider the problem of searching for a node or an object in a large network. Applications of this problem include route establishment in a mobile ad hoc network, data querying in a wireless sensor network, and file searching in a peer-to-peer network. We will limit our attention to the class of controlled flooding search
strategies where query packets are broadcast and propagated in the network until a preset TTL (time-to-live) expires. Every unsuccessful search attempt (signified by a timeout) results in an increased TTL value (i.e., larger search area). The primary goal is to derive strategies that will minimize the search cost associated with packet transmissions. We consider two cases. When the probability distribution of the location of the object is known a priori, we present a dynamic programming formulation with which optimal search strategies can be derived. We also derive necessary and sufficient
conditions under which two widely used search strategies are optimal. When the probability distribution is not known a priori, we adopt a worst-case cost measure which is also the competitive ratio with respect to an oblivious adversary. In minimizing this cost measure we show that the best strategies are randomized strategies. We then derive an asymptotically (as the network size increases) optimal randomized strategy, and compare its performance with its deterministic counterpart. We will also explore a number of simple but suboptimal strategies. Speaker Bio:Mingyan Liu received her B.Sc. degree in electrical engineering in 1995 from the Nanjing University of Aero. and Astro., Nanjing, China, M.Sc. degree in systems engineering and Ph.D. Degree in electrical engineering from the University of Maryland, College Park, in 1997 and 2000, respectively. She joined the Department of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor, in September 2000, where she is currently an Assistant Professor. Her research interests are in performance modeling, analysis, energy-efficiency and resource allocation issues in wireless mobile ad hoc networks, wireless sensor networks, and terrestrial satellite hybrid networks. She is the recipient of the 2002 NSF CAREER Award, and the University of Michigan Elizabeth C. Crosby Research Award in 2003.Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Irina Strelnik
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor.
