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SUNMONTUEWEDTHUFRISAT
Events for January 28, 2013
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Meet USC: Admission Presentation, Campus Tour, & Engineering TalkMon, Jan 28, 2013
Viterbi School of Engineering Undergraduate Admission
Receptions & Special Events
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 8:30 a.m. and again at 12:30 p.m. Please visit https://esdweb.esd.usc.edu/unresrsvp/MeetUSC.aspx to check availability and make an appointment. Be sure to list an Engineering major as your "intended major" on the webform!
Location: Ronald Tutor Campus Center (TCC) - USC Admission Office
Audiences: Everyone Is Invited
Contact: Viterbi Admission
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USC's Homeland Security Center (CREATE) Monthly Seminar Series
Mon, Jan 28, 2013 @ 11:30 AM - 01:00 PM
USC Viterbi School of Engineering
Conferences, Lectures, & Seminars
Speaker: Daniel Salazar, Samrat Chatterjee and Misak Avetisyan, CREATE Post Doctoral Researchers
Talk Title: ââ¬ÅAnalyzing risks to infrastructure systems against multiple hazards: concepts and applicationsââ¬Â
Series: CREATE Monthly Seminar Series
Abstract: This talk reports on the progress towards the development of a modeling framework for representing interactions among assets within an infrastructure system, evaluating system vulnerabilities, and rapid estimation of direct hazard impact on the built infrastructure. Approaches for handling natural and terrorism hazards within the model framework are discussed. Preliminary direct hazard impact estimation procedure and results for an explosion scenario at a seaport are presented. Uncertainties in the direct local hazard impacts and indirect global economic impacts for the example scenario above are quantified. Further extensions of the modeling framework to include estimation of system-wide operational hazard impacts are also discussed.
Biography: Daniel Salazar is a Postdoctoral Research Associate at CREATE since January 2011. Previously he was a Postdoctoral Research Fellow at G2I-3MI, Ecole des Mines de Saint Etienne, France (2008-2009). He is also Adjunct Professor at the Operations Research Master program of the Universidad Central de Venezuela (since 2009) and Cofounder, Academic Coordinator and Professor (since 2006) of the online Master in Reliability and Risk Engineering at the University of Las Palmas de Gran Canaria, Spain.
His main research areas include Reliability and Risk Engineering, Evolutionary Optimization, Decision-Making, Robustness and Uncertainty Handling. He has published more than 40 contributions in scientific international journals, conferences and book chapters.
Daniel holds a PhD in Intelligent Systems (2008, University of Las Palmas de Gran Canaria, Spain), a Postgraduate Diploma in Applied Statistics (2009, Universidad Nacional de Educacion a Distancia, Spain) and a MSc. in Operations Research (2003) and a BSc. in Chemical Engineering (2001) from Universidad Central de Venezuela.
Samrat Chatterjee is a postdoctoral research associate at the U.S. Homeland Security National Center for Risk and Economic Analysis of Terrorism Events (CREATE). His research focuses on mathematical modeling for terrorism, natural, and accidental hazards risk assessment and management. During his doctoral studies, he participated in a summer research fellowship program in the Risk and Vulnerability group at the International Institute for Applied Systems Analysis (IIASA) in Austria. At IIASA, he worked on regional disaster risk modeling and financing in an all-hazards context. His work at CREATE includes risk and decision modeling, uncertainty quantification, probabilistic risk assessment, optimization under uncertainty, and development of resource allocation strategies for risk-based decision making.
Samrat completed his doctoral degree in Civil Engineering with focus on Risk Analysis at Vanderbilt University in 2010 and master's degree in Civil Engineering with focus on Transportation Engineering at the University of Texas at Austin in 2006.
Misak Avetisyan is a Postdoctoral Research Associate at CREATE. His research focuses on general equilibrium analysis of economic impacts of natural and man-made hazards, environmental and energy economics, and energy security.
In April 2011, Misak successfully defended his dissertation in the Department of Economics at Purdue University. His dissertation explores the international trade impacts of policies aimed at reducing greenhouse gas emissions. During his graduate studies Misak worked on general equilibrium analysis of environmental policies and on developing non-CO2 GHG emissions and land use data bases at the Center for Global Trade Analysis (GTAP). Prior to his doctoral studies, Misak obtained an M.A. in Economics and an M.S. in Environmental Studies from Ohio University (August 2006). He also has a Master's degree in Engineering Management (July 2001), and a Bachelor's degree in Power Engineering (June 1999) from the State Engineering University of Armenia.
To ensure that I order your lunch, please RSVP no later than Wednesday, January 23, 2013. Please advise if you require a vegetarian option. Hope to see you there!
Best Regards,
Erin Calicchio
Administrative Assistant
University of Southern California
U.S. Department of Homeland Security - National Center for
Risk and Economic Analysis of Terrorism Events (CREATE)
3710 McClintock Ave, RTH 313
Los Angeles, CA 90089-2902
213-740-3863
calicchi@usc.edu
www.usc.edu/create
Host: Homeland Security Center @ USC (CREATE)
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Kelly Buccola
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Seminars in Biomedical Engineering
Mon, Jan 28, 2013 @ 12:30 PM - 01:50 PM
Alfred E. Mann Department of Biomedical Engineering
Conferences, Lectures, & Seminars
Talk Title: NO SEMINAR
Location: Olin Hall of Engineering (OHE) - 122
Audiences: Everyone Is Invited
Contact: Mischalgrace Diasanta
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Astani CEE Seminar
Mon, Jan 28, 2013 @ 01:00 PM - 02:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Amy E. Childress, Civil and Environmental Department Chair, University of Nevada, Reno
Talk Title: Towards water and energy sustainability with innovative membrane processes and systems
Abstract: Fresh water scarcity is forcing water providers to rely on alternative water supply sources such as saline waters (e.g., seawater) and ââ¬Åwasteââ¬Â waters. Low-energy treatment processes are desired to remove both established and emerging contaminants from these process waters. Forward osmosis (FO) and membrane distillation (MD) have gained national and international attention as viable, economic alternatives for seawater desalination and wastewater reclamation. Pressure-retarded osmosis (PRO) in combination with RO is also being considered to achieve water desalination at low energy expenditure.
FO is an osmotically driven membrane separation process that can be used as a high-level pretreatment for RO or other desalination process. The FO membrane provides an economical means to pretreat process waters and protect the RO membrane from excessive fouling. The FO-followed-by-RO scheme also represents a dual osmotic barrier that may be particularly useful for the removal of micropollutants. MD is a thermally driven membrane separation process that has long been investigated in small-scale laboratory studies and has the potential to become a viable tool for water desalination and brine concentration. Compared to conventional distillation methods, MD requires only small temperature differences â⬓ temperature differences achievable through the use of low-grade or waste heat sources. Compared to RO, the driving force in MD is not reduced by osmotic pressure and thus, MD can be used to treat high salinity solutions or to provide enhanced recovery through brine desalination. Results from investigations on the energy, recovery, and water quality advantages of FO and MD over conventional methods will be presented. The state-of-the-art of research and development of FO and MD systems will also be discussed.
In PRO, water from a low salinity solution permeates through a membrane into a pressurized, high salinity solution; power is obtained by depressurizing the permeate through a hydroturbine. A synergistic RO-PRO desalination system was designed to reduce RO energy requirements and to dilute the brine generated by the RO process prior to disposal. The development and testing of this system will be presented.
Location: Kaprielian Hall (KAP) - 209
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Integrated Systems Seminar Series
Mon, Jan 28, 2013 @ 02:30 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. John Wood , Maxim Integrated Products
Talk Title: Behavioural Modeling & Linearization of RF Power Amplifiers
Abstract: In cellular wireless communications systems, the RF power amplifier (PA) in the transmitter must be as efficient as possible, to minimize energy costs, to prolong battery life, and for âgreen’ considerations. Modern spectrally-efficient, digitally-modulated signals such as LTE and UMTS present a challenge for efficient RF PA design, and the power amplifier architectures that are adopted to achieve this goal are generally very nonlinear, and so some form of linearization technique is necessary.
The increasing use of linearization techniques, and especially the emergence of high speed digital processing as an enabling technology to implement digital pre-distortion (DPD) of the PA input signal, represent an important paradigm shift in PA design. The PA component can now be designed with more emphasis on power and efficiency, without the traditional constraints of meeting stringent linearity specs simultaneously. Understanding the utility of a linearizer to obtain optimum efficiency has thus become a new subject area in modern RF PA design.
The system-level design of linearized PA transmitters requires accurate models to achieve the optimal performance. Behavioural modeling is used to describe the PA and linearizer at this level of the design. In this tutorial, we shall present some approaches to the behavioral modeling of nonlinear dynamical systems that can be used to model RF PAs; particular emphasis will be given to the treatment of memory effects. Some common mathematical and systematic approaches to model generation will be presented, to obtain accurate but compact nonlinear dynamical models. A brief description of some characterization techniques will be included. These same nonlinear modeling techniques can be applied to the design of successful pre-distortion algorithms. We shall illustrate the overall structure of a linearized transmitter using several DPD architectures, and we shall present various approaches to adaptive pre-distortion, considering such features as convergence, signal bandwidth, accuracy, and cost.
Biography: Dr. John Wood (M’87, SM’03, F’07) received B. Sc. and Ph. D. degrees in Electrical and Electronic Engineering from the University of Leeds, in 1976 and 1980, respectively. He is currently Senior Principal Member of Technical Staff with Maxim Integrated Products, working on the modeling and design of envelope-tracking solutions for mobile phones. He was a Distinguished Member of the Technical Staff in the RF Division of Freescale Semiconductor, where he worked from 2005--2011. His areas of expertise include the development of nonlinear compact device models and behavioral models for RF power transistors and ICs, the understanding of the impact, characterization, & control using digital pre-distortion (DPD) of nonlinearities and memory effects in high-efficiency PAs. From 1997--2005 he worked in the Microwave Technology Center of Agilent Technologies, developing large-signal and bias-dependent linear FET models for mm-wave applications, and nonlinear behavioral models using LSNA measurements and nonlinear system identification techniques. He is author or co-author of over 120 papers and articles. He is a Fellow of the IEEE, and a member of the Microwave Theory and Techniques, and Electron Devices Societies, and is a member of ARFTG Executive Committee. He is a Distinguished Microwave Lecturer for MTT Society. He is currently Editor-in Chief of the IEEE âMicrowave’ magazine.
Host: Prof. Hossein Hashemi, Prof. Mike Chen
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Hossein Hashemi
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Integrated Systems Seminar Series
Mon, Jan 28, 2013 @ 02:30 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. John Wood, Maxim Integrated Products
Talk Title: Behavioural Modeling & Linearization of RF Power Amplifiers
Abstract: In cellular wireless communications systems, the RF power amplifier (PA) in the transmitter must be as efficient as possible, to minimize energy costs, to prolong battery life, and for âgreen’ considerations. Modern spectrally-efficient, digitally-modulated signals such as LTE and UMTS present a challenge for efficient RF PA design, and the power amplifier architectures that are adopted to achieve this goal are generally very nonlinear, and so some form of linearization technique is necessary.
The increasing use of linearization techniques, and especially the emergence of high speed digital processing as an enabling technology to implement digital pre-distortion (DPD) of the PA input signal, represent an important paradigm shift in PA design. The PA component can now be designed with more emphasis on power and efficiency, without the traditional constraints of meeting stringent linearity specs simultaneously. Understanding the utility of a linearizer to obtain optimum efficiency has thus become a new subject area in modern RF PA design.
The system-level design of linearized PA transmitters requires accurate models to achieve the optimal performance. Behavioural modeling is used to describe the PA and linearizer at this level of the design. In this tutorial, we shall present some approaches to the behavioral modeling of nonlinear dynamical systems that can be used to model RF PAs; particular emphasis will be given to the treatment of memory effects. Some common mathematical and systematic approaches to model generation will be presented, to obtain accurate but compact nonlinear dynamical models. A brief description of some characterization techniques will be included. These same nonlinear modeling techniques can be applied to the design of successful pre-distortion algorithms. We shall illustrate the overall structure of a linearized transmitter using several DPD architectures, and we shall present various approaches to adaptive pre-distortion, considering such features as convergence, signal bandwidth, accuracy, and cost.
Biography: Dr. John Wood (M’87, SM’03, F’07) received B. Sc. and Ph. D. degrees in Electrical and Electronic Engineering from the University of Leeds, in 1976 and 1980, respectively. He is currently Senior Principal Member of Technical Staff with Maxim Integrated Products, working on the modeling and design of envelope-tracking solutions for mobile phones. He was a Distinguished Member of the Technical Staff in the RF Division of Freescale Semiconductor, where he worked from 2005--2011. His areas of expertise include the development of nonlinear compact device models and behavioral models for RF power transistors and ICs, the understanding of the impact, characterization, & control using digital pre-distortion (DPD) of nonlinearities and memory effects in high-efficiency PAs. From 1997--2005 he worked in the Microwave Technology Center of Agilent Technologies, developing large-signal and bias-dependent linear FET models for mm-wave applications, and nonlinear behavioral models using LSNA measurements and nonlinear system identification techniques. He is author or co-author of over 120 papers and articles. He is a Fellow of the IEEE, and a member of the Microwave Theory and Techniques, and Electron Devices Societies, and is a member of ARFTG Executive Committee. He is a Distinguished Microwave Lecturer for MTT Society. He is currently Editor-in Chief of the IEEE âMicrowave’ magazine.
Host: Prof. Hossein Hashemi, Prof. Mike Chen
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Hossein Hashemi
