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SUNMONTUEWEDTHUFRISAT
Events for March 25, 2009
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Meet USC
Wed, Mar 25, 2009
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/meet_usc.html 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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Seminar: Design-for-reliability for scaled electronic technologies: Opportunities and challenges
Wed, Mar 25, 2009 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Abstract: This talk will motivate design-for-reliability initiatives that anticipate the paradigm shift to error-aware and error-tolerant design of integrated circuits, both of which are required to address the problem of increasing hardware failures in future technology nodes. These concerns are only
exacerbated as we look forward to emerging technology alternatives. Using graphene as an example, I will go on to describe the modeling, simulation, and design advances that we believe are essential to
address the complexity challenges associated with such scaled electronic technologies.Bio: Kartik Mohanram received the B.Tech. degree in electrical engineering from IIT-Bombay in 1998, and the M.S. and Ph.D. degrees in computer engineering from UT-Austin in 2000 and 2003 respectively. He is currently an assistant professor in the department of Electrical and Computer Engineering at Rice University. His primary research interests are in computer engineering and systems, with an emphasis on modeling, simulation, and computer-aided design of integrated circuits. He is a
recipient of the NSF CAREER Award, the ACM/SIGDA Technical Leadership Award, and the A. Richard Newton Graduate Scholarship.Location: Ronald Tutor Hall of Engineering (RTH) - 306
Audiences: Everyone Is Invited
Contact: Annie Yu
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DLS: Control: The Hidden Thechnology
Wed, Mar 25, 2009 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Distinguished Lecturer: Dr. Karl AstromAbstract:
Although feedback has been used for hundreds of years the discipline of control emerged in the 1940s. Control being the first systems discipline was a paradigm shift that fitted poorly in structures organized in civil,mechanical, electrical and chemical engineering. The field has developed very rapidly and control systems are now ubiquitous in engineering. The lecture presents some reflections on the dynamic development of the field the driving forces and the achievements. A brief overview of the historical development is given, development of the central ideas will be discussed and important application areas described. The interplay of theory and applications are discussed together with relations to specific engineering disciplines and mathematics, computer science, physics and biology. It is attempted to assess the current status of the field and to speculate about its future development. An explanation of the title will also be given.Biography:
Karl Johan Astrom was educated at The Royal Institute in Stocholm. After working for IBM Research for five years he was appointed Professor of the Chair of Automatic Control at Lund Institute of Technology (LTH)/Lund University where he established a new department. In 1999 he became Emeritus in Lund and part time professor at UCSB. Astrom has broad interests in automatic control including, stochastic control, modeling, system identification, adaptive control,computer control and computer-aided control engineering. He is listed in ISA Highly Cited and he has Erdos number 3. One paper on self-tuning control, co-authored with B. Wittenmark, was selected for the IEEE Book Control Theory: Twenty-five seminal papers 1932-81. He has several patents, one on automatic tuning of PID controllers, held jointly with T. Hagglund, has led to substantial production. Astrom is a member of the Royal Swedish Academy of Engineering Sciences (IVA) and the Royal Swedish Academy of Sciences (KVA). He is a Fellow of IEEE and IFAC, a foreign member of the US National Academy of Engineering, the Russian Academy of Sciences, and the Hungarian Academy of Sciences. Astrom has received many honors among them six honorary doctorates, the 1987 Quazza Medal from IFAC, the 1993 IEEE Medal of Honor and the 2002 Great Gold Medal of the Royal Swedish Academy of Engineering.Lecture: 2:00-3:00PM,
Reception: 3:00-4:00Location: Hedco Pertroleum and Chemical Engineering Building (HED) - co Neuroscience Auditorium (HNB 100)
Audiences: Everyone Is Invited
Contact: Estela Lopez
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Phononic Characteristics of Lattice Structures: ....
Wed, Mar 25, 2009 @ 02:00 PM - 03:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
..From Theoretical and Computational Aspects to Applications
in Smart Multifunctional DevicesDr. Stefano Gonella,
Department of Mechanical Engineering, Northwestern UniversityAbstract:
Within the family of periodic solids, lattice structures and cellular materials have been the object of special scientific interest as a result of their unique mechanical and thermal properties and their excellent strength-to-weight ratio, which make them ideal for automotive and aerospace engineering applications. One well-known example is represented by hexagonal and auxetic honeycomb structures, which are used in conventional sandwich plates as well as in "truss-core" composite beams. Analysis of the wave propagation characteristics of these structures reveals a whole new set of peculiar mechanical properties, which suggests applications in novel smart structures and metamaterials. The phenomenon of phononic bandgaps, for instance, can be exploited to design tunable vibration isolation devices and mechanical filters. The directionality of the elastic wavefields for specific frequencies of excitation suggests the possibility to design frequency-controlled waveguides and directional actuators and sensors. Finally, the interplay between phononic characteristics and piezoelectric microstuctures can be used to envision a new class of multifunctional devices for energy generation and conversion.In this presentation, a finite-element-based homogenization technique is
introduced to extract the equivalent dynamic properties of lattices with arbitrary internal geometry. A computational unit cell approach is then used to investigate the in-plane phononic characteristics of hexa-chiral lattice structures. Finally, a novel concept is presented for piezoelectric microstructured devices combining vibration isolation and
energy harvesting capabilities.Location: Kaprielian Hall (KAP) - 209
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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The Looming Crisis of Air Traffic Capacity - Can Vortex Dynamics Help
Wed, Mar 25, 2009 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Fazle HussainDept of Mech Engr, Univ of HoustonCurrently, Moore Distinguished Scholar, CaltechCullen Distinguished ProfessorDirector, Institute of Fluid Dynamics and TurbulenceABSTRACTBy 2025, the air traffic capacity will be tripled, demanding a tripling of runways at major airports of the world. Primarily mandated by aircraft separation for safe flight, this is not only already a challenge during takeoffs and landings, but will become a major problem also during cruise in the crowded skies. Motivated by this scenario, we propose a method of breaking up the trailing vortices and inducing their rapid decay so that separation between aircraft can be significantly reduced, thus minimizing the need for additional runways and flight delays.We study via direct numerical simulation the evolution of a vortex column embedded in fine-scale turbulence. We then explore three potential mechanisms for core perturbation growth:
(a) centrifugal instability due to vortex circulation overshoot, (b) Kelvin wave growth in the core due to resonance with the external turbulence, and (c) transient growth of perturbations in the normal-mode-stable vortex. We
show that transient growth of bending waves can produce orders of magnitude growth in core turbulence and hence possible breakup of trailing vortices and their faster decay - particularly at Reynolds numbers relevant to aircraft trailing vortices.
Location: Seaver Science Library, Rm 150
Audiences: Everyone Is Invited
Contact: April Mundy
