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Events for April 23, 2008

  • Meet USC

    Wed, Apr 23, 2008

    Viterbi School of Engineering Undergraduate Admission

    Workshops & Infosessions


    This half day program is designed for prospective freshmen and family members. Meet USC includes an information session on the University and the Admission process; a student led walking tour of campus and a meeting with us in the Viterbi School. Meet USC is designed to answer all of your questions about USC, the application process and financial aid.Reservations are required for Meet USC. This program occurs twice, once at 9:00 a.m. and again at 1:00 p.m. Please visit http://www.usc.edu/admission/undergraduate/visit/events/meet_usc/ to check availability and make an appointment. Be sure to list an Engineering major as your "intended major" on the webform!

    Location: USC Admission Center

    Audiences: Prospective Freshmen and Family Members - RESERVATIONS REQUIRED

    Contact: Viterbi Admission

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  • Meet USC

    Wed, Apr 23, 2008

    Viterbi School of Engineering Undergraduate Admission

    Workshops & Infosessions


    This half day program is designed for prospective freshmen and family members. Meet USC includes an information session on the University and the Admission process; a student led walking tour of campus and a meeting with us in the Viterbi School. Meet USC is designed to answer all of your questions about USC, the application process and financial aid.Reservations are required for Meet USC. This program occurs twice, once at 9:00 a.m. and again at 1:00 p.m. Please visit http://www.usc.edu/admission/undergraduate/visit/events/meet_usc/ to check availability and make an appointment. Be sure to list an Engineering major as your "intended major" on the webform!

    Location: USC Admission Center

    Audiences: Prospective Freshmen and Family Members - RESERVATIONS REQUIRED

    Contact: Viterbi Admission

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  • Assessing Accuracy and Significance of Structural and Functional Brain Images

    Wed, Apr 23, 2008 @ 10:00 AM - 11:00 AM

    Ming Hsieh Department of Electrical and Computer Engineering

    Conferences, Lectures, & Seminars


    SPEAKER: Dimitrios Pantazis, Postdoctoral Research Associate, Signal and Image Processing InstituteABSTRACT: Recent developments in instrumentation, coupled with new data analysis tools, have led to unique ways of noninvasively exploring the human brain. For example, whole head Magnetoencephalography (MEG) arrays provide dynamic images of human brain function at a millisecond scale; Magnetic Resonance Imaging (MRI) methods allow access to structural and diffusion brain images, as well as functional maps of hemodynamic response. I will discuss ways of identifying experimental effects in dynamic images of MEG brain activation through the use of random field theory and permutation statistical tests. I will then extend these tests to spatial-spectral activation maps, morphological tests of brain structures, and tumor detection in positron emission tomography. Efficient methods to analyze MEG data through the use of custom analysis of covariance models will be presented and applied in a human visual attention study. I will conclude with an evaluation of manual and automatic human cortex registration methods.BIO: Dimitrios Pantazis is Postdoctoral Research Associate in the Department of Electrical Engineering at the University of Southern California, and the Dornsife Cognitive Neuroscience Imaging Center and House Ear Institute in Los Angeles through the Biomedical Imaging Sciences Initiative in USC. He is a member of the Biomedical Imaging Research Lab lead by Prof. Richard M. Leahy, and has broad research interests in modeling and statistical analysis of anatomical and functional brain signals. He received a diploma in EE from the Aristotle University of Thessaloniki - Greece in 1996, and a M.S and Ph.D. in EE from the University of Southern California in 2003 and 2006 respectively. More information on his research can be found at http://neuroimage.usc.edu/pantazisHOST: Richard Leahy, leahy@sipi.usc.edu

    Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

    Audiences: Everyone Is Invited

    Contact: Mayumi Thrasher

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  • Desensitizing Halfband Interpolation Filters

    Wed, Apr 23, 2008 @ 11:00 AM - 12:00 PM

    Ming Hsieh Department of Electrical and Computer Engineering

    Conferences, Lectures, & Seminars


    Speaker: Professor Alan WillsonElectrical Engineering Department
    University of California, Los Angeles, CaliforniaABSTRACTA very common component in digital circuitry for communications systems is the halfband filter. Halfband filters are often used in cooperation with up-samplers and down-samplers when a sampling-rate change is required. While techniques for designing these filters are well known, an entirely new design method has just been discovered wherein these filters can be made to possess a significant desensitivity to the filter's tap coefficient values. Such desensitivity can be exploited to yield halfband filters with reduced hardware requirements, which leads to circuits having lower power consumption, higher operating speeds, and smaller IC area. This talk will give a brief introduction to the concept of halfband filters and the applications of halfband filters. It will then explain the rationale and the method for the desensitizing of the filters and, finally, will illustrate through design examples and further explanation how the desensitivity improves upon the conventional designs.BIOGRAPHYDr. Alan N. Willson, Jr. is a Distinguished Professor of Electrical Engineering at UCLA. He served as Assistant Dean for Graduate Studies in the UCLA School of Engineering and Applied Science from 1977 through 1981, and served as Associate Dean of Engineering from 1987 through 2001. He has been engaged in research concerning computer-aided circuit analysis and design, the stability of distributed circuits, properties of nonlinear networks, theory of active circuits, digital signal processing, analog circuit fault diagnosis, and integrated circuits for signal processing. He is editor of Nonlinear Networks: Theory and Analysis (New York: IEEE Press, 1974). In 1991, he founded Pentomics, Inc. Dr. Willson served as editor of the IEEE Transactions on Circuits and Systems from 1977 to 1979 and as President of the IEEE Circuits and Systems (CAS) Society in 1984. He was the recipient of the 1978 and 1994 Guillemin-Cauer Awards of the IEEE CAS Society, the 1982 George Westinghouse Award of the American Society for Engineering Education, the 1982 Distinguished Faculty Award of the UCLA Engineering Alumni Association, the 1984 Myril B. Reed Best Paper Award of the Midwest Symposium on CAS, the 1985 and 1994 W. R. G. Baker Awards of the IEEE, the 2000 Technical Achievement Award and the 2003 Mac Van Valkenburg Award of the IEEE CAS Society. In 2007 he and his recent Ph.D. student, Guichang Zhong, were winners of the 44th DAC/ISSCC Student Design Contest.HOST: Professor Sanjit K. Mitra

    Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

    Audiences: Everyone Is Invited

    Contact: Talyia Veal

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  • Optimization Models for Simulation

    Wed, Apr 23, 2008 @ 02:00 PM - 03:00 PM

    Daniel J. Epstein Department of Industrial and Systems Engineering

    University Calendar


    Daniel J. Epstein Department of Industrial and Systems Engineering Seminar"Optimization Models for Simulation"W. K. Victor ChanAssistant Professor, Department of Decision Sciences & Engineering Systems, Rensselaer Polytechnic Institute, Troy, NYABSTRACT: The first part of the talk presents a methodology for modeling discrete-event simulation as optimization problems. This method allows one to combine techniques in simulation and optimization in designing and/or analyzing stochastic systems. Applications of this methodology in queueing theory, manufacturing, and perturbation analysis will be discussed.The second part of the talk gives an overview of other on-going research conducting by the presenter and his collaborators. These include agent-based simulation for electricity markets, evolutionary models for online social networks, decentralized algorithms and agent-based models for biological systems, optimal scheduling for semi-conductor manufacturing, and meta-modeling of service systems.WEDNESDAY, APRIL 23, 2008, GERONTOLOGY BUILDING (GER) ROOM 309, 2:00–3:00 PM

    Location: Ethel Percy Andrus Gerontology Center (GER) - 309

    Audiences: Everyone Is Invited

    Contact: Georgia Lum

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  • Long Actuator Delays - Extending the Smith Predictor to Nonlinear

    Wed, Apr 23, 2008 @ 03:30 PM - 04:30 PM

    Aerospace and Mechanical Engineering

    Conferences, Lectures, & Seminars


    Miroslav KrsticHarold W. Sorenson Professor of Control SystemsDept. of Mechanical & Aerospace EngineeringUniversity of California at San DiegoAbstract: One would be hard pressed to find "long actuator delays" and "nonlinear control" co-existing in the same sentence in the existing control literature, which is due to the infinite dimensionality and the potential for finite escape time instability in the underlying problems. On the 50th anniversary of Otto Smith's invention of the "predictor" feedback for compensating long actuator delays for linear systems, a method that has since become one of the favorite tools in chemical process control and many other applications, I am pleased to present an approach for synthesizing a predictor feedback to go along with any stabilizing nominal nonlinear controller, with actuator delay of any length. Interestingly, Smith's idea was actually an elementary version of "infinite dimensional backstepping," which I have been developing over the last few years for PDE problems such as Navier-Stokes, MHD, Euler and Timoshenko beams, and other systems in mechanics. By employing the backstepping point of view to construct Lyapunov-Krasovskii functionals, it becomes possible to prove several forms of robustness of predictor feedbacks, including robustness to both underestimating and overestimating the length of the actuator delay. The latter is a particularly subtle result because it involves a non-standard dynamic perturbation - the controller (inadvertently) inserts an additional infinite-dimensional state to an already infinite-dimensional feedback loop.

    Location: Seaver Science Library, Rm 150

    Audiences: Everyone Is Invited

    Contact: April Mundy

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