SUNMONTUEWEDTHUFRISAT
Events for October 08, 2009
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Water Resources Workshop
Thu, Oct 08, 2009 @ 08:30 AM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Workshop GoalWater issues have been and will continue to exert challenges to communities and business in the West and in particular Southern California. By engaging in a discussion of these water challenges researchers from USC and Veolia believe that a common research-oriented collaboration can be developed. The action items that are identified through these focused discussion will provide the backbone of further work collaborations.Workshop Themes1. Water distribution systems including bio-films and sensors.2. Desalination including pre-treatment, post-treatment (brine management), and Red Tide.3.Water reuse of municipal and industrial wastewaters including technology and policy aspects.4.Construction management, including asset management, PPP and design, build, and operate.5.Robotics for inspection of collection systems.
Location: Ronald Tutor Hall of Engineering (RTH) - 526
Audiences: By Invitation Only
Contact: Evangeline Reyes
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RANDOM FIELD MODELS FOR POLYCRYSTALS AND TWO-PHASE MICROSTRUCTURES
Thu, Oct 08, 2009 @ 03:00 PM - 04:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Mircea Grigoriu, Ph.D., Cornell UniversityAbstract:The presentation has two parts. In the first part, we use examples to illustrate the need for representing material microstructures by random fields and illustrate potential difficulties related to the estimation of the parameters of these felds. Common techniques for reconstructing microstructures are presented and critically examined. In the second part, we present (1) a Markov random field for aluminum polycrystals, calibrate the model to measurements of Euler angles giving the atomic lattice orientation, and generate virtual aluminum polycrystals, (2) an inhomogeneous non-Gaussian random field for inclusions of arbitrary geometry, calibrate the model to measurements, and generate virtual concrete aggregates, and (3) homogeneous/inhomogeneous level-cut filtered Poisson fields for two-phase microstructures. Filtered Poisson fields are sums of kernels with specied functional form and random amplitude/orientation that are located at Poisson points. The cuts of these fields above a level define the inclusions of two-phase microstructures.
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
