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SUNMONTUEWEDTHUFRISAT
Events for January 16, 2007
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DSMC modeling of near-continuum flows
Tue, Jan 16, 2007 @ 11:00 AM - 12:00 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Ye.A. BondarInstitute of Theoretical and Applied Mechanics, Novosibirsk 630090, RussiaThe recent activity of Computational Aerodynamics Lab (ITAM, Novosibirsk, Russia) on statistical simulation of high-temperature near-continuum rarefied flows is reviewed. An accurate prediction of these flows, such as those behind the shock wave formed about a space vehicle at high altitudes, requires the use of adequate models of physical and chemical processes - so-called real gas effects, and effective numerical procedures. Current challenges and problems pertaining to the development, validation and application of such models are discussed. A novel approach to statistical simulation of high-temperature nonequilibrium chemical reactions is described. Vibrationally specific dissociation cross sections are found as solutions of an integral equation whose right side contains a two-temperature reaction rate constant. The approach is illustrated by an example of the model of high-temperature dissociation of nitrogen. All stages of model implementation are considered in detail, namely, the mathematical basis, analysis of the model by comparisons with conventional models both at the level of cross sections and at the level of macroscopic reaction rates, and particular applications to computations of near-continuum reacting flows by the Direct Simulation Monte Carlo method.
Location: Laufer Library, RRB 207
Audiences: Everyone Is Invited
Contact: April Mundy
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Understanding the Financial Aid Process
Tue, Jan 16, 2007 @ 12:00 PM - 01:00 PM
Viterbi School of Engineering Student Affairs
Workshops & Infosessions
The Viterbi Admission & Student Affairs Division will be holding two more Financial Aid workshops to discuss the details of the upcoming financial aid application process. A representative from the Financial Aid Office will come and discuss the Financial Aid application process, the importance of deadlines and other issues that students should be aware of. Please come with questions you have about the process. If you would like to attend this event, please RSVP to viterbi.studentservices@usc.edu and indicate the date of the session you would like to attend.
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Undergrad - Freshmen & New Transfer Students
Contact: Julie Phaneuf
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A Physical Approach to Multiple Antenna Communication
Tue, Jan 16, 2007 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Professor Massimo Franceschetti, UC San DiegoAbstract: In multiple antenna (MIMO) systems communication is performed through the act of propagation of electromagnetic (EM) waves. EM research typically focuses on the physical aspects of propagation, while information theory (IT) focuses mainly on the communication aspects, often considering random channel models. In this talk we attempt to address the gap between these two approaches. We formally relate the concept of information transmission to the amount of diversity that EM waves can carry. Such diversity lies in two different dimensions: time and space. The classical view of Shannon's information theory considers only the time dimension along with its transformed counterpart: the frequency spectrum. However, Shannon's theory can also be applied to the space dimension which, analogous to time, becomes a capacity bearing object.The spatial information content can be quantified in a similar fashion than its temporal counterpart, by reducing the inverse problem of field reconstruction to a communication problem in space, and determining the relevant communication modes of the channel by rigorously applying the sampling theorem on the field's vector space.One consequence, for narrow-band frequency transmission, is that space and time can be decoupled, leading to a space-time information duality principle in the computation of the capacity of the radiating system. Interestingly, in the case of wide-band frequency transmission, a much more complex scenario arises, as it turns out that time and space cannot be decoupled and they jointly characterize the wave's information content.Bio: Massimo Franceschetti is assistant professor in the Department of Electrical and Computer Engineering of University of California at San Diego. He received the Laurea degree, magna cum laude, in Computer Engineering from the University of Naples in 1997, and the M.S. and Ph.D. degrees in Electrical Engineering from the California Institute of Technology in 1999, and 2003. Before joining UCSD, he was a post-doctoral scholar at University of California at Berkeley for two years.Prof. Franceschetti was awarded the C.H. Wilts Prize in 2003 for best doctoral thesis in Electrical Engineering at Caltech; the S.A Schelkunoff award in 2005 (jointly with profs. J. Bruck and L. J. Shulman) for best paper in the IEEE Transactions on Antennas and Propagation; and an NSF CAREER award in 2006.He has held visiting positions at at the Vrije Universiteit Amsterdam in the Netherlands, the Ecole Polytechnique Federale de Lausanne in Switzerland, and the University of Trento in Italy.His research interests include random networks for communication, wave propagation in random media, and control over networks. He is currently associate guest co-editor of the IEEE Transactions on Information Theory, special issue on relay and cooperation in networks and the IEEE Journal on Selected Areas in Communications, special issue on Communication and Control.Host: Urbashi Mitra, ubli@usc.edu
Location: Frank R. Seaver Science Center (SSC) - 319
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
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VSC: General Meeting
Tue, Jan 16, 2007 @ 05:00 PM
Viterbi School of Engineering Student Organizations
Workshops & Infosessions
Location: TBD
Audiences: Everyone Is Invited
Contact: Viterbi Student Council
