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SUNMONTUEWEDTHUFRISAT
Events for March 28, 2007
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Walk-In Wednesdays: Career Services Advising
Wed, Mar 28, 2007
Viterbi School of Engineering Career Connections
Student Activity
Please feel free to come in during these walk-in hours! No appointment is necessary. Come in for resume reviews, internship information, or general engineering career advice.
Location: Ronald Tutor Hall of Engineering (RTH) - 218
Audiences: Current Engineering Students!
Contact: RTH 218 Viterbi Career Services
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Essays on Economic Modeling: Spatial-Temporal Extensions and Verification
Wed, Mar 28, 2007 @ 12:00 PM - 01:30 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
University Calendar
METRANS PhD Candidates Dissertation Presentation Seminar: "Essays on Economic Modeling: Spatial-Temporal Extensions and Verification" JiYoung ParkPhD, Urban Planning, School of Policy, Planning and Development, University of Southern California Abstract: Ever since the 2001 terrorist attacks on the U.S., several studies have evaluated the socioeconomic impacts on the U.S. economy from these and also various hypothetical attacks. Although recent studies (see for example, Planning Scenarios; Howe, 2004) illustrate preliminary estimates of the losses from various hypothetical terrorist attacks on selected major targets, such reports typically contain no spatial information. However, economic impacts from man-made or natural disasters would not be restricted to a just the immediate impact area; rather, they involve spatial incidence, spreading via social and economic linkages. Clearly, spatial impact information is important for at least two reasons in discussions of homeland security. First, political representatives have an obvious interest in their own constituency and jurisdiction. Second, sub-national impacts can cancel each other in the aggregate, causing national measures to obscure key dimensions of events. Therefore, to be useful for policy makers, impact analyses should include information on the nature of spatially distributed impacts throughout the national economy, especially for alternate defensive and mitigation measures. To estimate such spatial impacts, they should be determined by tracing impulses through inter-related industries as well as via inter-regional commodity flows. In this sense, the usefulness of interstate multiregional input-output (MRIO) type models is clear. Many mitigation and precautionary approaches to disasters are conducted at the local level, and therefore, those various hypothetical impacts cannot easily be evaluated unless sub-national effects can be estimated. It is also well known, as the various studies using IO-type models have noted, that a key limitation of IO models is that all coefficients in the models are fixed. The constant coefficients in the IO matrix ignore substitution opportunities and/or different relations between industries that might be prompted by market signals. Therefore, IO model applications are only useful for impact analyses relevant to very short periods, where we assume that most market behaviors do not change. If some of the assumptions of IO models can be relaxed so that they are relevant beyond the short-run, their usefulness and application would increase tremendously.
In the sense, this dissertation suggests new methodologies on temporal extensions. Therefore, this dissertation addresses methodologies on spatial and/or temporal economic IO models extended from the classic IO model, as well as temporally extended national IO model (USIO). Also, this dissertation includes an essay to support supply-driven IO model theoretically, which includes some problem applying to an empirical disasters due to interpretation problem. Based on spatially extended IO model at the state level, called National Interstate Economic Model (NIEMO), a supply-driven NIEMO with price elasticity of demand and temporally extended supply-driven NIEMOs (FlexNIEMOs) are introduced. Hence, this dissertation includes three essays on extension of supply-driven IO and spatial expansions from the classic demand-driven IO: 'The Supply-Driven Input-Output Model: A New Reinterpretation and Extension', 'A Two-Step Approach Estimating State-by-State Commodity Trade Flows', 'Estimation of Interstate Trade Flows for Service Industries'. Then, a fourth essay in this dissertation is 'An Evaluation of Input-Output Aggregation Error Using a New MRIO Model', which provides information on the accuracy of NIEMO. Finally, because theoretical suggestion of temporal extension is based on the demand- and supply-driven IO or NIEMO, the last essay of 'Constructing a Flexible National Interstate Economic Model (FlexNIEMO)' deals with the expansion of all types of IO models. Several papers applying those models to terrorist attacks or natural disasters are expecting to publish academically, as well as those essays.Wednesday, March 28, 2007, 12:00 noon - 1:30 pm at USC University Park Campus, Lewis Hall (RGL) Room 215** Feel free to bring your lunch. Drinks and dessert will be served. **Location: Ralph And Goldy Lewis Hall (RGL) - 215
Audiences: Everyone Is Invited
Contact: Georgia Lum
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The Robust Vehicle Routing Problem
Wed, Mar 28, 2007 @ 12:00 PM - 01:30 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
University Calendar
METRANS PhD Candidates Dissertation Presentation Seminar: "The Robust Vehicle Routing Problem"Ilgaz SungurPhD Candidate, Daniel J. Epstein Department of Industrial and Systems Engineering, University of Southern California Abstract: We apply robust optimization methodology on the Vehicle Routing Problem to address the uncertainty in demand and cost. We develop robust counterparts and use performance measures to compare the robust and deterministic solutions. We experimentally analyze demand uncertainty using an open source solver. Our results on both literature and random instances show that for certain network structures, robust solution benefits from strategic allocation of the slack in vehicles with little extra cost.Wednesday, Mar. 28, 2007, 12:00pm - 1:30pm, Lewis Hall (RGL)Room RGL 215** Feel free to bring your lunch. Drinks and dessert will be served. **
Location: Ralph And Goldy Lewis Hall (RGL) - 215
Audiences: Everyone Is Invited
Contact: Georgia Lum
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International Student Workshop
Wed, Mar 28, 2007 @ 12:00 PM - 12:50 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Are you an international student that needs insight on how to find Engineering positions within the United States? Attend this workshop and learn how you can prepare for your career path!
Location: Ronald Tutor Hall of Engineering (RTH) - 109
Audiences: Everyone Is Invited
Contact: RTH 218 Viterbi Career Services
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Studies on Aerosol Impacts on Climate and Health
Wed, Mar 28, 2007 @ 02:00 PM - 03:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker:Dr. Suzanne Paulson,
Department of Civil and Environmental Engineering,
UCLAAbstract:1. Optical Properties, Measurement Uncertainties, and Health Impacts of Aerosol Particles
Black carbon and organic carbon aerosols have substantial effects on the Earth's climate, yet because of large uncertainties in both the optical properties, mass measurements and emissions of these materials, their impacts cannot be quantified with any accuracy. We are studying a series of model aerosols generated under realistic conditions using small engines and photochemical smog in a roof-top Teflon reaction chamber. Aerosols are characterized with an extensive suite of techniques including in situ optical and off-line optical to off-line mass and composition analyzers. Among these instruments is a new instrument to measure aerosol angular scattering. From this measurement we are developing a method to retrieve aerosol refractive indices from the data using a genetic algorithms approach.2. Aerosol Production of Hydrogen Peroxide
Recent epidemiological studies have shown a strong relationship between particulate pollution and health outcomes, including mortality. Determining the 'causative agent' in particles responsible for damaging health is the subject of increasing study, but many questions remain. Reactive oxygen species, including hydrogen peroxide, are candidates for part of the adverse health effects caused by particle inhalation. In this project, aerosol borne oxidants are being characterized, investigating the relationship between these toxic compounds and location, source type, aerosol type, and photochemical activity. Additionally, laboratory studies on model systems are underway to determine the source and behavior of peroxides in aerosols.Location: Kaprielian Hall (KAP) - 203
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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High-Angle Grain Boundaries and the Evolution of Texture during Severe Plastic Deformation (SPD) Pro
Wed, Mar 28, 2007 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Terry R McNelleyCenter for Materials Science and EngineeringDepartment of Mechanical and Astronautical EngineeringNaval Postgraduate SchoolMonterey, CaliforniaAbstractThe production of highly refined microstructures in engineering alloys by application of novel SPD technologies may lead to dramatic property improvements, but realization of this potential will require improved understanding of microstructure control and microstructure – processing – property relationships. This presentation will examine high-angle boundary formation in microstructures after conventional and SPD processing of aluminum and its alloys, and the relationship between these boundaries and components of the texture. Recent orientation imaging microscopy investigations in this laboratory have revealed distinct, meso-scale band - or block-like features in processed materials. The lattice orientations within these features alternate between prominent texture orientations in a manner reminiscent of deformation banding in fcc metals. Analytical transmission electron microscopy has shown that the interfaces between these features are dislocation boundaries that may be precursors to disordered high-angle grain boundaries. Recent results on materials processed by large-strain extrusion machining will be included.About the PresenterTerry McNelley is a native of Fort Wayne, Indiana. He received his BS in Metallurgical Engineering in 1967 from Purdue and his PhD in Materials Science and Engineering in 1973 from Stanford. For the period 1972-76 he was a faculty member in the Department of Mechanical Engineering at the University of Wyoming, and from 1976 – present he has been in the Mechanical Engineering Department at the Naval Postgraduate School, serving as Department Chair from 1996 – 2002. He has held visiting appointments at institutions in England (1980-81), Japan (1993) and Spain (1999). Professor McNelley's interests include microstructure – processing – property relationships in metallic materials; deformation processing, microstructures, recrystallization and superplasticity; and metal matrix composites. He was elected Fellow of ASMI in 2001.
Location: Seaver Science Library (SSL) Room 150
Audiences: Everyone Is Invited
Contact: April Mundy
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East Meets West: Exploring Cultures through Music
Wed, Mar 28, 2007 @ 07:30 PM
USC Viterbi School of Engineering
Receptions & Special Events
In three exciting collaborative performances, the Jerusalem Academy of Music and Dance and the USC Thornton School of Music will transcend racial, cultural and political differences. Tonight's performance will feature Arab music highlighting the improvisation connection between this music and American jazz.For more information, please visit: http://www.usc.edu/webapps/events_calendar/custom/113/index.php?category=Item&item=0.861416&active_category=Day
Location: Alfred Newman Concert Hall
Audiences: Everyone Is Invited
Contact: Daria Yudacufski
