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Conferences, Lectures, & Seminars
Events for February
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Center for Systems and Control (CSC@USC) and Ming Hsieh Institute for Electrical Engineering
Mon, Feb 05, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Douglas Smith, Air Force Office of Scientific Research
Talk Title: AFOSR -“ Unsteady Aerodynamics and Turbulent Flows: An Introduction
Abstract: This presentation will give a brief introduction to the Air Force Office of Scientific Research (AFOSR) and the Unsteady Aerodynamics and Turbulent Flows portfolio at AFOSR. The Unsteady Aerodynamics and Turbulent Flows portfolio is interested in basic research problems associated with the motion and control of laminar, transitional and turbulent flows, including the interactions of these flows with rigid and flexible surfaces. The portfolio seeks to advance fundamental understanding of complex, time-dependent flow interactions by integrating theoretical/analytical, numerical, and experimental approaches. The focus on the understanding of the fundamental flow physics is motivated by an interest in developing physically-based predictive models and innovative control concepts for these flows. Research in this portfolio is motivated by, but not limited to, applications including unique fluid-structure interactions, vortex and shear layer flows, and the enduring challenges of turbulence.
Biography: Dr. Douglas Smith is the Program Officer for the Unsteady Aerodynamics and Turbulent Flows portfolio at AFOSR. Dr. Smith received his ScB in Engineering from Brown University in 1987 and his MA and PhD from Princeton University in 1990 and 1993, respectively. After completing his doctorate, Dr. Smith spent two and a half years as a post-doctoral researcher in Europe, first at Institut de Mecanique Statistique de la Turbulence (IMST) in Marseille, France, and then at Imperial College of Science and Technology in London. Following these two positions, Dr. Smith was a Georgia Tech post-doctoral fellow working on active flow control concepts with the Boeing Phantom Works group in St. Louis. Prior to his arrival at AFOSR, Dr. Smith was an Associate Professor of Mechanical Engineering at the University of Wyoming.
Host: Mihailo Jovanovic, mihailo@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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. -
From Flocking Birds to Swarming Bacteria: A Study of the Dynamics of Active Fluids
Tue, Feb 06, 2018 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Xiang Cheng, Chemical Engineering and Materials Science, University of Minnesota
Talk Title: From Flocking Birds to Swarming Bacteria: A Study of the Dynamics of Active Fluids
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: Active fluids are a novel class of non-equilibrium complex fluids with examples across a wide range of biological and physical systems such as flocking animals, swarming microorganisms, vibrated granular rods, and suspensions of synthetic colloidal swimmers. Different from familiar non-equilibrium systems where free energy is injected from boundaries, an active fluid is a dispersion of large numbers of self-propelled units, which convert the ambient/internal free energy and maintain non-equilibrium steady states at microscopic scales. Due to this distinct feature, active fluids exhibit fascinating and unusual behaviors unseen in conventional complex fluids. Here, by combining high-speed confocal microscopy, holographic imaging, rheological measurements and biochemical engineering, we experimentally investigate the dynamics of active fluids. In particular, we use E. coli suspensions as our model system and illustrate three unique properties of active fluids, i.e., (i) abnormal rheology, (ii) enhanced diffusion of passive tracers and (iii) emergence of collective swarming. Based on theoretical tools of fluid mechanics and statistical mechanics, we develop a quantitative understanding of these interesting behaviors. Our study illustrates the general organizing principles of active fluids that can be exploited for designing "smart" fluids with controllable fluid properties. Our results also shed new light on fundamental transport processes in microbiological systems.
Biography: Xiang Cheng received his B.S. in physics from Peking University in China in 2002. He then moved to U.S. and obtained his Ph.D. in physics from the University of Chicago in 2009. He worked as a postdoctoral associate in the Department of Physics at Cornell University from 2009 to 2013. He is currently an assistant professor at the Department of Chemical Engineering and Materials Science at the University of Minnesota. Dr. Cheng has received several academic awards, including NSF Career Award, Packard Fellowship, DARPA Young Faculty Award, 3M non-tenured faculty award and McKnight Land-Grant Professorship. His research group studies experimental soft materials physics, with a special focus on the emergent flow behaviors of soft materials and their associated mesoscopic structures and dynamics. Particularly, his research interests include the rheology of colloidal suspensions and granular flows, hydrodynamics of active fluids and dynamics of liquid-drop impact processes.
Host: Professor Paul Bogdan
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Everyone Is Invited
Contact: Talyia White
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. -
Center for Systems and Control (CSC@USC) and Ming Hsieh Institute for Electrical Engineering
Mon, Feb 12, 2018 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Richard Murray, California Institute of Technology
Talk Title: Safety-Critical Autonomous Systems: What is Possible? What is Required?
Abstract: The last 20 years have seen enormous progress in autonomous vehicles, from planetary rovers, to unmanned aerial vehicles, to the self-driving cars that we are starting to see on the roads around us. An open question is whether we can we make self-driving cars that are safer than human-driven cars, how much safer they need to be, and what advances will be required to bring them to fruition. In this talk, I will discuss some of the approaches used in the aerospace industry, where flight critical subsystems must achieve probability of failure rates of less than 1 failure in 10^9 flight hours (i.e. less than 1 failure per 100,000 years of operation). Systems that achieve this level of reliability are hard to design, hard to verify, and hard to validate, especially if software is involved. I will describe some of the challenges that the aerospace community faces in designing systems with this level of reliability, how they are designed and implemented done today, and what is being done for the next generation of (much more complex, software-driven) aerospace systems. I will also speculate about whether similar approaches are needed in self-driving cars, and whether these levels of safety are achievable.
Biography: Richard M. Murray received the B.S. degree in Electrical Engineering from California Institute of Technology in 1985 and the M.S. and Ph.D. degrees in Electrical Engineering and Computer Sciences from the University of California, Berkeley, in 1988 and 1991, respectively. He is currently the Thomas E. and Doris Everhart Professor of Control & Dynamical Systems and Bioengineering at Caltech. Murray's research is in the application of feedback and control to networked systems, with applications in biology and autonomy. Current projects include specification, design and synthesis of control protocols for networked control systems and analysis and design of biomolecular feedback systems for synthetic biology.
Host: Mihailo Jovanovic, mihailo@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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. -
Dynamical Systems on Weighted Lattices: Nonlinear Processing and Optimization
Wed, Feb 14, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Petros Maragos, School of E.C.E., National Technical University of Athens
Talk Title: Dynamical Systems on Weighted Lattices: Nonlinear Processing and Optimization
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: In this talk we will present a unifying theoretical framework of nonlinear processing operators and dynamical systems that obey a superposition of a weighted max-* or min-* type and evolve on nonlinear spaces which we call complete weighted lattices. Their algebraic structure has a polygonal geometry. Some of the special cases unified include max-plus, max-product, and probabilistic dynamical systems. Such systems have found applications in diverse fields including nonlinear image analysis and vision scale-spaces, control of discrete-event dynamical systems, dynamic programming (e.g. shortest paths, Viterbi algorithm), inference on graphical models, tracking salient events in multimodal information streams using generalized Markov chains, and sparse modeling. Our theoretical approach establishes their representation in state and input-output spaces using monotone lattice operators, finds analytically their state and output responses using nonlinear convolutions of a weighted max-min type, studies their stability and reachability, and provides optimal solutions to solving max-* matrix equations. The talk will summarize the main concepts and our theoretical results in this broad field using weighted lattice algebra and will sample some application areas.
Biography: Petros Maragos received the Diploma in E.E. from the National Technical University of Athens (NTUA) in 1980 and the M.Sc. and Ph.D. degrees from Georgia Tech, Atlanta, in 1982 and 1985. In 1985, he joined the faculty of the Division of Applied Sciences at Harvard University, where he worked for eight years as professor of electrical engineering affiliated with the Harvard Robotics Lab. In 1993, he joined the faculty of the School of ECE at Georgia Tech, affiliated with its Center for Signal and Image Processing. During periods of 1996-98 he had a joint appointment as director of research at the Institute of Language and Speech Processing in Athens. Since 1999, he has been working as professor at the NTUA School of ECE, where he is currently the director of the Intelligent Robotics and Automation Lab. He is also the coordinator of a robotics perception & interaction research unit at the Athena Research and Innovation Center. He has held visiting positions at MIT in 2012 and at UPenn in 2016. His research and teaching interests include signal processing, systems theory, machine learning, image processing and computer vision, audio-speech & language processing, and robotics. He has served as: member of IEEE SPS technical committees; associate editor for the IEEE Trans. on ASSP and IEEE Trans. on PAMI, editorial board member and guest editor for several journals on signal processing, image analysis and vision; co-organizer of several conferences and workshops on image processing, computer vision, multimedia and robotics (including recently EUSIPCO 2017 as general chair).He has also served on the Greek National Council for Research and Technology. His is the recipient or co-recipient of several awards for his academic work, including a 1987-1992 National Science Foundation Presidential Young Investigator Award, a 1988 IEEE SPS Young Author Best Paper Award, a 1994 IEEE SPS Senior Best Paper Award, the 1995 IEEE W.R.G. Baker Prize Award for the most outstanding original paper, the 1996 Pattern Recognition Society's Honorable Mention Award, the EURASIP 2007 Technical Achievement Award for contributions to nonlinear signal, image and speech processing, and the Best Paper Award of the IEEE CVPR-2011 Gesture Recognition Workshop. He was elected a Fellow of IEEE in 1995 and a Fellow of EURASIP in 2010 for his research contributions. He has been elected IEEE SPS Distinguished Lecturer for 2017-2018.
Host: Professor Paul Bogdan
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Talyia White
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. -
Manuel Monge, Neuralink Corp. - Friday, February 16 at 2:00pm in EEB 132
Fri, Feb 16, 2018 @ 02:00 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Manuel Monge, Neuralink Corp.
Talk Title: High-Precision Electronic Medicine: Localization, Stimulation, and Beyond
Abstract: Over the past decades, remarkable advances toward miniaturized biomedical devices have been made and have enabled the development of new approaches to the diagnosis and treatment of human diseases. For instance, smart pills are being used to image the gastrointestinal tract, distributed sensors are being developed to map the function of the brain, and neural prostheses are being designed to help the visual, hearing, and motor impaired. However, most of today's implantable devices present critical limitations regarding size, power consumption, and functionality. Furthermore, several medical conditions could be dramatically improved if even smaller bioelectronic devices were to exist.
In this talk, I will provide an overview of implantable medical devices and present our efforts for engineering microscale devices to enable high-precision electronic medicine. In the first part of the talk, I will describe a novel approach for locating microscale devices inside the body using concepts from magnetic resonance imaging (MRI). We have demonstrated a new microchip that mimics the behavior of nuclear spins and can be located in space by the application of magnetic field gradients. Using this technique, we can locate a device smaller than 1 mm3 with sub-millimeter resolution in vivo. Such miniature devices could reach currently inaccessible locations inside the body with high precision to perform diagnosis and treatment of localized disease. In the second part, I will focus on neural stimulation techniques for retinal prostheses, which are devices aiming to restore vision in patients suffering from advanced stages of retinal degeneration (e.g., retinitis pigmentosa). I will present a fully intraocular epiretinal implant that reduces area and power consumption, and increases the functionality and resolution of traditional implementations. Finally, I will discuss some exciting research directions and potential applications of the developed techniques.
Biography: Manuel Monge received the BS degree in Electrical Engineering from the Pontifical Catholic University of Peru in 2008 with honors, and the MS and PhD degrees in Electrical Engineering from the California Institute of Technology in 2010 and 2017, respectively. His research interests focus on the miniaturization of medical electronics by combining and integrating physical and biological principles into the design of microscale integrated circuits. He is currently working at Neuralink Corp., developing ultra-high-bandwidth brain-machine interfaces.
He is the recipient of the 2017 Charles Wilts Prize from the Department of Electrical Engineering at Caltech for outstanding independent research in electrical engineering leading to a PhD, and the 2017 Demetriades-Tsafka-Kokkalis Prize in Biotechnology from the Division of Engineering and Applied Science at Caltech for the best thesis in the field of biotechnology. He was also the co-recipient of the 2015 IEEE CICC Best Student Paper Award, 2nd Place, and the recipient of the Caltech Rosen Scholarship in 2014.
Host: EE-Electrophysics
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Marilyn Poplawski
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. -
Modeling, Analysis and Design of Resilient Cyber-Physical Systems
Tue, Feb 20, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Bruno Sinopoli , Carnegie Mellon University
Talk Title: Modeling, Analysis and Design of Resilient Cyber-Physical Systems
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: Recent advances in sensing, communication and computing allow cost effective deployment in the physical world of large-scale networks of sensors and actuators, e.g. Internet of Things, enabling fine grain monitoring and control of a multitude of physical systems and infrastructures. Such systems, called cyber-physical, lie at the intersection of sensing, communication, computing and control. The close interplay among these fields and the resulting complexity render independent design of subsystems a risky approach, as separation of concerns does not constitute a realistic assumption in real world scenarios. It is therefore imperative to derive new models and methodologies to allow analysis and design of robust and secure cyber-physical systems (CPS). In this talk I will present an overview of recent research on the topic and discuss future directions.
Biography: Bruno Sinopoli received the Dr. Eng. degree from the University of Padova in 1998 and his M.S. and Ph.D. in Electrical Engineering from the University of California at Berkeley, in 2003 and 2005 respectively. After a postdoctoral position at Stanford University, Dr. Sinopoli joined the faculty at Carnegie Mellon University where he is full professor in the Department of Electrical and Computer Engineering with courtesy appointments in Mechanical Engineering and in the Robotics Institute and co-director of the Smart Infrastructure Institute, a research center aimed at advancing innovation in the modeling analysis and design of smart infrastructure. Dr. Sinopoli was awarded the 2006 Eli Jury Award for outstanding research achievement in the areas of systems, communications, control and signal processing at U.C. Berkeley, the 2010 George Tallman Ladd Research Award from Carnegie Mellon University and the NSF Career award in 2010. His research interests include the modeling, analysis and design of Secure by Design Cyber-Physical Systems with applications to Energy Systems, Interdependent Infrastructures and Internet of Things.
Host: Professor Paul Bogdan
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Talyia White
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. -
Center for Systems and Control (CSC@USC) and Ming Hsieh Institute for Electrical Engineering
Wed, Feb 21, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Sean Meyn, University of Florida
Talk Title: Reinforcement Learning: Hidden Theory, and New Super-Fast Algorithms
Abstract: Stochastic Approximation algorithms are used to approximate solutions to fixed point equations that involve expectations of functions with respect to possibly unknown distributions. The most famous examples today are TD- and Q-learning algorithms. The first half of this lecture will provide an overview of stochastic approximation, with a focus on optimizing the rate of convergence. A new approach to optimize the rate of convergence leads to the new Zap Q-learning algorithm. Analysis suggests that its transient behavior is a close match to a deterministic Newton-Raphson implementation, and numerical experiments confirm super fast convergence.
Biography: Sean Meyn received the BA degree in mathematics from the University of California, Los Angeles, in 1982 and the PhD degree in electrical engineering from McGill University, Canada, in 1987 (with Prof. P. Caines). He is now Professor and Robert C. Pittman Eminent Scholar Chair in the Department of Electrical and Computer Engineering at the University of Florida, the director of the Laboratory for Cognition and Control, and director of the Florida Institute for Sustainable Energy. His academic research interests include theory and applications of decision and control, stochastic processes, and optimization. He has received many awards for his research on these topics, and is a fellow of the IEEE. He has held visiting positions at universities all over the world, including the Indian Institute of Science, Bangalore during 1997-1998 where he was a Fulbright Research Scholar. During his latest sabbatical during the 2006-2007 academic year he was a visiting professor at MIT and United Technologies Research Center (UTRC). His award-winning 1993 monograph with Richard Tweedie, Markov Chains and Stochastic Stability, has been cited thousands of times in journals from a range of fields. The latest version is published in the Cambridge Mathematical Library. For the past ten years his applied research has focused on engineering, markets, and policy in energy systems. He regularly engages in industry, government, and academic panels on these topics, and hosts an annual workshop at the University of Florida.
Host: Mihailo Jovanovic, mihailo@usc.edu
More Information: meyn.png (PNG Image, 134 × 168 pixels).pdf
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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. -
Dr. Julia Greer - Munushian Seminar Speaker, Friday, February 23rd at 2:00pm in EEB 132
Fri, Feb 23, 2018 @ 02:00 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Julia Greer, California Institute of Technology
Talk Title: Materials by Design: 3-Dimensional Nano-Architected Meta-Materials
Abstract: Creation of extremely strong and simultaneously ultra lightweight materials can be
achieved by incorporating architecture into material design. We fabricate threedimensional
(3D) nano-architectures, i.e. nanolattices, whose constituents vary in size
from several nanometers to tens of microns to centimeters. These nanolattices can
exhibit superior thermal, photonic, electrochemical, and mechanical properties at extremely
low mass densities (lighter than aerogels), which renders them ideal for many
scientific pursuits and technological applications. The dominant properties of such
meta-materials, where individual constituent size at each relevant scale (atoms to
nanometers to microns) is comparable to the characteristic microstructural length
scale of the constituent solid, are largely unknown because of their multi-scale nature.
To harness the beneficial properties of 3D nano-architected meta-materials, it is
critical to assess properties at each relevant scale while capturing the overall structural
complexity.
We describe the deformation, as well as the mechanical, biochemical,
electrochemical, thermal, and photonic properties of nanolattices made of different
materials with varying microstructural detail. Attention is focused on uncovering the
synergy between the internal atomic-level microstructure and the nano-sized external
dimensionality, where competing material- and structure-induced size effects drive
overall response and govern these properties. Specific discussion topics include the
nanofabrication and characterization of (often hierarchical) three-dimensional nanoarchitected
meta-materials and their applications in chemical and biological devices,
ultra lightweight energy storage systems, damage-tolerant fabrics, and photonic
crystals.
Biography: Greer's research focuses on creating and characterizing classes of materials with multiscale
microstructural hierarchy, that utilize the combination of three-dimensional (3D)
architectures with nanoscale-induced material properties. These include nature-made
materials, i.e. bone and hard biological systems, as well as synthetic ones that can be
comprised of a broad range of materials: from ceramics and metals to glasses, polymers,
organics, organic/inorganic hybrids, and multi-functional smart materials. These nanoarchitected
meta-materials not only provide a rich "playground" for fundamental
science but also have the potential to enable new technological advances in biomedical
devices, battery electrodes, lightweight structural materials, and
Greer obtained her S.B. in Chemical Engineering with a minor in Advanced Music
Performance from MIT in 1997 and a Ph.D. in Materials Science from Stanford, worked
at Intel (2000-03) and was a post-doc at PARC (2005-07). Julia joined Caltech in 2007
and currently is a full professor with appointments in Materials Science, Mechanical
Engineering, and Medical Engineering.
Greer has more than 130 publications and has delivered over 100 invited lectures, which
include 2 TEDx talks, multiple named seminars at universities, the Watson lecture at
Caltech, the Gilbreth Lecture at the National Academy of Engineering, the Midwest
Mechanics Lecture series, and a "IdeasLab" at the World Economic Forum. She was
named a Vannevar-Bush Faculty Fellow by the US Department of Defence (2016) and
CNN's 20/20 Visionary (2016). Her work was recognized among Top-10 Breakthrough
Technologies by MIT's Technology Review (2015). Greer was named as one of "100
Most Creative People" by Fast Company and a Young Global Leader by World
Economic Forum (2014) and received multiple career awards: Kavli (2014), Nano
Letters, SES, and TMS (2013); NASA, ASME (2012), Popular Mechanics
Breakthrough Award (2012), DOE (2011), DARPA (2009), and Technology Review's
TR-35, (2008).
Greer serves as an Associated Editor for Nano Letters and Extreme Mechanics Letters.
She is also a concert pianist, with recent performances of "nanomechanics rap" with
MUSE/IQUE, solo piano recitals and chamber concerts (2007-present), and as a soloist
of Brahms Concerto No. 2 with Redwood Symphony (2006).
Host: EE-Electrophysics
More Info: minghsiehee.usc.edu/about/lectures/munushian
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Marilyn Poplawski
Event Link: minghsiehee.usc.edu/about/lectures/munushian
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. -
Chia Wei Hsu, Monday, February 26th at 12:00pm noon in EEB 132
Mon, Feb 26, 2018 @ 12:00 PM - 01:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Chia Wei Hsu, Department of Applied Physics, Yal University
Talk Title: New Frontiers of Electromagnetic Phenomena at the Nanoscale
Abstract: Optics and photonics today enjoy unprecedented freedom. The ability to synthesize arbitrary light fields (through wavefront shaping) and the ability to design structures at the subwavelength scale (through nanofabrication) enable us to realize exciting new phenomena that were not accessible in the past. In this talk, I will present several such experiments and related theory.
It is commonly thought that waves cannot be perfectly confined within the continuum spectrum of an open system. I will describe the first realization of "bound states in the continuum" that defy such conventional textbook wisdom [1] as well as their underlying topological nature [2]. This new way to confine light enables novel lasers, filters, and sensors [3].
I will show that by tailoring the radiation of optical modes, we can realize non-Hermitian photonic band structures with no counterpart in closed Hermitian systems, such as rings of exceptional points [4] and pairs of exceptional points connected by bulk Fermi arcs [5].
By designing light fields, we can control wave transport even through unknown disordered structures. I will show that the multiple scattering of light leads to correlations between far-away photons [6] and that using such correlations, we can simultaneously control orders of magnitudes more degrees of freedom than what was previously thought to be possible [7].
I will conclude with my visions for new opportunities enabled by designed light fields and optical structures, including new paradigms for imaging and optical computing that have the potential to go beyond the current state of the art by orders of magnitude.
[1] C. W. Hsu*, B. Zhen* et al., Nature 499, 188 (2013).
[2] B. Zhen*, C. W. Hsu* et al., Phys. Rev. Lett. 113, 257401 (2014).
[3] C. W. Hsu*, B. Zhen* et al., Nature Reviews Materials 1, 16048 (2016).
[4] B. Zhen*, C. W. Hsu* et al., Nature 525, 354 (2015).
[5] H. Zhou et al., Science, eaap9859 (2018).
[6] C. W. Hsu et al., Phys. Rev. Lett. 115, 223901 (2015).
[7] C. W. Hsu et al., Nature Physics 13, 497 (2017).
Biography: Wade is a postdoc at Yale applied physics. He received his PhD in physics from Harvard in 2015 and BS in physics with high honors from Wesleyan in 2010. His research centers around controlling light in nanoscale structures and complex systems, through a combination of experiment and theory. He is the co-author of 32 peer-reviewed journal articles and the co-inventor of 3 patents, and has delivered over a dozen invited talks internationally. He won the LeRoy Apker Award given by the American Physical Society and was a finalist for the Blavatnik Regional Award for Young Scientists.
Host: EE-Electrophysics
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Marilyn Poplawski
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. -
Center for Systems and Control (CSC@USC) and Ming Hsieh Institute for Electrical Engineering
Mon, Feb 26, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Frank Doyle, Harvard University
Talk Title: Controlling the Artificial Pancreas
Abstract: Type 1 diabetes mellitus (T1DM) is a chronic autoimmune disease affecting approximately 35 million individuals world-wide, with associated annual healthcare costs in the US estimated to be approximately $15 billion. Current treatment requires either multiple daily insulin injections or continuous subcutaneous (SC) insulin infusion (CSII) delivered via an insulin infusion pump. Both treatment modes necessitate frequent blood glucose measurements to determine the daily insulin requirements for maintaining near-normal blood glucose levels.
More than 30 years ago, the idea of an artificial endocrine pancreas for patients with type 1 diabetes mellitus (T1DM) was envisioned. The closed-loop concept consisted of an insulin syringe, a blood glucose analyzer, and a transmitter. In the ensuing years, a number of theoretical research studies were performed with numerical simulations to demonstrate the relevance of advanced process control design to the artificial pancreas, with delivery algorithms ranging from simple PID, to fuzzy logic, to H-infinity, to model predictive control. With the advent of continuous glucose sensing, which reports interstitial glucose concentrations approximately every minute, and the development of hardware and algorithms to communicate with and control insulin pumps, the vision of closed-loop control of blood glucose is approaching a reality.
In the last 15 years, our research group has been working with medical doctors on clinical demonstrations of feedback control algorithms for the artificial pancreas. In this talk, I will outline the difficulties inherent in controlling physiological variables, the challenges with regulatory approval of such devices, and will describe a number of process systems engineering algorithms we have tested in clinical experiments for the artificial pancreas.
Biography: Frank Doyle is the John A. Paulson Dean of the Paulson School of Engineering and Applied Sciences at Harvard University, where he also is the John A. & Elizabeth S. Armstrong Professor. Prior to that he was the Mellichamp Professor at UC Santa Barbara, where he was the Chair of the Department of Chemical Engineering, the Director of the UCSB/MIT/Caltech Institute for Collaborative Biotechnologies, and the Associate Dean for Research in the College of Engineering. He received a B.S.E. degree from Princeton, C.P.G.S. from Cambridge, and Ph.D. from Caltech, all in Chemical Engineering. He has also held faculty appointments at Purdue University and the University of Delaware, and held visiting positions at DuPont, Weyerhaeuser, and Stuttgart University. He has been recognized as a Fellow of multiple professional organizations including: IEEE, IFAC, AIMBE, and the AAAS. He was the President for the IEEE Control Systems Society in 2015, and is the Vice President of the International Federation of Automatic Control. In 2005, he was awarded the Computing in Chemical Engineering Award from the AIChE for his innovative work in systems biology, and in 2015 received the Control Engineering Practice Award from the American Automatic Control Council for his development of the artificial pancreas. In 2016, he was inducted as a Fellow into the National Academy of Medicine for his work on biomedical control. His research interests are in systems biology, network science, modeling and analysis of circadian rhythms, and drug delivery for diabetes.
Host: Mihailo Jovanovic, mihailo@usc.edu
More Information: Doyle.png
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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. -
Center for Systems and Control (CSC@USC) and Ming Hsieh Institute for Electrical Engineering
Wed, Feb 28, 2018 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Magnus Egerstedt, Georgia Institute of Technology
Talk Title: Long-range autonomy and constraint-based coordination of multi-robot systems
Abstract: By now, we have a fairly good understanding of how to design coordinated control strategies for making teams of mobile robots achieve geometric objectives in a distributed manner, such as assembling shapes or covering areas. But, the mapping from high-level tasks to geometric objectives is not particularly well understood. In this talk, we investigate this topic in the context of long-range autonomy, i.e., we consider teams of robots, deployed in an environment over a sustained period of time, that can be recruited to perform a number of different tasks in a distributed, safe, and provably correct manner. This development will involve the composition of multiple barrier certificates for encoding the tasks and safety constraints, as well as a detour into ecology as a way of understanding how persistent environmental monitoring, as a special instantiation of the long-range autonomy concept, can be achieved by studying animals with low-energy life-styles, such as the three-toed sloth.
Biography: Magnus Egerstedt is the Executive Director for the Institute for Robotics and Intelligent Machines at the Georgia Institute of Technology and a Professor and the Julian T. Hightower Chair in Systems and Controls in the School of Electrical and Computer Engineering. He received the M.S. degree in Engineering Physics and the Ph.D. degree in Applied Mathematics from the Royal Institute of Technology, Stockholm, Sweden, the B.A. degree in Philosophy from Stockholm University, and was a Postdoctoral Scholar at Harvard University. Dr. Egerstedt is a Fellow of the IEEE and a recipient of a number of research and teaching awards, including the Ragazzini Award from the American Automatic Control Council.
Host: Mihailo Jovanovic, mihailo@usc.edu
More Information: egerstedt.jpg (JPEG Image, 623 × 779 pixels).pdf
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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.
