Conferences, Lectures, & Seminars
Events for November
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AME - Department Seminar
Wed, Nov 07, 2012 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Debbie G. Senesky, Assistant Professor in the Aeronautics and Astronautics Department at Stanford University
Talk Title: Micro- and Nano-systems for Extreme Harsh Environments
Abstract: Wide bandgap semiconductor materials are inherently temperature-tolerant, radiation-hardened and biocompatible which can extend the operation regime of micro- and nano-scale devices to extreme harsh environments (e.g. deep space, subsurface environments, combustion environments, and the human body). In addition, wide bandgap semiconductor materials are often simultaneously piezoelectric, piezoresistive and pyroelectric, which can be leveraged in the design of a multitude of micro- and nano-scale devices such as inertial sensors, bolometers, micromechanical resonators and energy harvesters in a single material layer. In this talk, a review of the advancements in manufacturing technology for polycrystalline thin film, epitaxial thin film and nanowire growth of wide bandgap semiconductor materials is presented. In addition, the compelling results of silicon carbide (SiC), gallium nitride (GaN), and aluminum nitride (AlN) device operation at temperatures as high as 600°C will be reviewed. These robust material sets can serve as a platform for the realization of sensor, actuator and electronic systems that can operate and collect data under the most hostile conditions.
Biography: Debbie G. Senesky received the B.S. degree in mechanical engineering from the University of Southern California in 2001. She received the M.S. and Ph.D. degrees in mechanical engineering from the University of California, Berkeley in 2004 and 2007, respectively. From 2007 to 2008, she was a Design Engineer for GE Sensing (formerly known as NovaSensor). From 2008 to 2012, she was a postdoctoral researcher at the Berkeley Sensor and Actuator Center developing silicon carbide (SiC) sensing technology for extreme harsh environments. Recently, she has been appointed to the faculty in the Aeronautics and Astronautics Department at Stanford University. Her research interests include the development of micro- and nano-scale sensors, wide bandgap electronics and ceramic materials for operation within extreme harsh environments.
Host: Professor Dravinski
More Info: http://ae-www.usc.edu/seminars/11-7-12-senesky.shtml
Location: Seaver Science Library (SSL) - Room 150
Audiences: Everyone Is Invited
Contact: April Mundy
Event Link: http://ae-www.usc.edu/seminars/11-7-12-senesky.shtml
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Laufer Lecture Series
Wed, Nov 14, 2012 @ 02:00 PM - 04:00 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Patrick Huerre, Professor of Mechanical Polytechnic, Director of Research at the National Centre for Scientific Research, and Head of the Laboratory of Hydrodynamics (LadHyX), UMR CNRS-School Polytechnic
Talk Title: AMPLIFIERS AND OSCILLATORS: A HYDRODYNAMIC STABILITY PERSPECTIVE
Series: Laufer Lecture Series
Abstract: Complex flows of interest in aeronautical applications may often be considered as involving a combination of simpler prototypical free shear flows such as mixing layers, wakes, jets, etc. which prevail in different spatial subdomains. Such archetypical shear flows are in a turbulent state but they are known to exhibit large-scale vortical structures which dominate the dynamics up to very large Reynolds numbers. Experimental observations indicate that some flows are extrinsic amplifiers of external noise while others are intrinsic oscillators which beat at a specific frequency. In this lecture, such structures will be described as instablity waves living on a suitable mean flow. Hydrodynamic stability concepts such as convective/absolute instability, local/ global instability, will then be shown to account for the extrinsic or intrinsic spatio-temporal dynamics of coherent structures in several shear flows. The classical locally parallel asymptotic analyses and the more recently developed fully non-parallel numerical approaches will be critically assessed.
Biography: Professor Patrick Huerre received his Ingénieurâs degree from Ecole Centrale Paris in 1970 and his PhD in Aeronautical Sciences from Stanford University in 1976. After postdoctoral work at the University of Leeds with the late Professor David Crighton, he joined the faculty of the department of Aerospace Engineering at the University of Southern California (USC) in 1978. In 1989 he was appointed Professor of Mechanics at Ecole Polytechnique. Since 1991, he has also been Director of Research at the French National Center for Scientific Research (CNRS). Patrick Huerre was the founder and director of the Hydrodynamics Laboratory (LadHyX) at Ecole Polytechnique in the period 1990-2008. Patrick Huerre is President of the European Mechanics Society. He was Associate-Editor of the Journal of Fluid Mechanics (1999-2009). He has served on several committees and panels in Europe and in the United States.
Patrick Huerre is a member of the Académie des Sciences and a Fellow of the American Physical Society. He is Chevalier de la Légion dâHonneur. His research areas of interest cover a wide variety of hydrodynamic instabilities and transition phenomena in shear flows. His main research achievements include the effective use of absolute/convective instability concepts to rigorously distinguish between amplifiers and oscillators in fluid mechanics, the introduction of the notions of linear and nonlinear global mode and associated frequency selection criteria to account for the dynamics of oscillators and the identification of super-directivity as a key mechanism for the production of sound in shear flows.
Host: Dr. Geoff Spedding
More Info: http://ae-www.usc.edu/seminars/11-14-12-huerre.shtml
Location: Edward L. Doheny Jr. Memorial Library (DML) - Room 240
Audiences: Everyone Is Invited
Contact: April Mundy
Event Link: http://ae-www.usc.edu/seminars/11-14-12-huerre.shtml
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AME - Department Seminar
Fri, Nov 16, 2012 @ 02:00 PM - 03:00 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: P. Henrik Alfredsson, Professor Linné FLOW Centre KTH Mechanics Royal Institute of Technlogy
Talk Title: Rotation Effects on Instability and Turbulence on Simple Shear Flows
Abstract: Effects of rotation (centrifugal and/or Coriolis forces) are usually felt on large scales (such as planetary scales) or at very high rotation rates such as turbines and compressors. However laboratory scale shear flows may be strongly affected also by quite small rotation rates. In this talk we concentrate on two cases: spanwise rotation of shear flows (here we will focus on plane Couette flow) and axial rotation of circular pipe flow. Both flows show surprising effects of the rotation, in the first case due to the Coriolis force that can either stabilize or destabilize the flow. For stabilizing rotation turbulence may be completely killed, whereas for the destabilizing case a number of different instabilities can be observed. For the axially rotating turbulent pipe flow the symmetry is broken by rotation and the flow will never reach solid body rotation. An unexpected feature occurring if the flow is issued as a swirling jet will also be discussed.
Host: Dr. Veronica Eliasson
More Info: http://ae-www.usc.edu/seminars/11-16-12-alfredsson.shtml
Location: Room 101
Audiences: Everyone Is Invited
Contact: April Mundy
Event Link: http://ae-www.usc.edu/seminars/11-16-12-alfredsson.shtml
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AME - Department Seminar
Wed, Nov 28, 2012 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Paul Macklin, Co-Director of the Consortium for Integrative Computational Oncology (CICO) and Assistant Professor of Research Medicine for the Center for Applied Molecular Medicine Keck School of Medicine at the University of Southern California
Talk Title: Progress, Challenges, and Opportunities in 3-D Patient-Calibrated Computational Modeling of Cancer
Abstract: Clinical oncology practice can generate a wide variety of data for patients, spanning molecular profiling, pathology, and radiology, which tend to be used in isolation when planning patient care. There is currently no technique to quantitatively combine these diverse data sources, along with novel in vitro measurements, to improve surgical and therapeutic planning. Similarly, while cancer research generates a staggering wealth of data spanning many scales, these data are generally not integrated into comprehensive models. We are likely missing emergent system-level cancer phenomena and the novel therapeutic targets they represent. In this talk, we will discuss efforts by my lab, the USC Physical Sciences Oncology Center, and the Consortium for Integrative Computational Oncology to solve these issues. With a focus on patient pathology-calibrated breast cancer modeling and multidisciplinary modeling of liver metastases, we will discuss the role for computational modeling in cancer research, encouraging results in quantitatively predicting clinical progression, the implications for making and quantitatively testing biological hypotheses, and the role of computational modeling in facilitating a deeper understanding of biology, pathology, and radiology. More information can be found at MathCancer.org.
More Info: http://ae-www.usc.edu/seminars/11-28-12-macklin.shtml
Location: SSL Room 150
Audiences: Everyone Is Invited
Contact: April Mundy
Event Link: http://ae-www.usc.edu/seminars/11-28-12-macklin.shtml