Conferences, Lectures, & Seminars
Events for October
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Multi-Scale and Adaptive Modeling of Materials and Structures
Fri, Oct 01, 2004 @ 02:45 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
J. S. Chen, Professor
Department of Civil and Environmental Engineering
University of California, Los AngelesIn this presentation, the mathematical and computational framework based on (1) wavelet multi-scale homogenization and (2) asymptotic expansion method for multi-scale modeling of materials and structures will be first presented. A variationally consistent approach to obtain multi-scale Euler equations, as well as the associated numerical methods solving scale-coupling functions, will be introduced. For demonstration purposes, a multi-scale variational formulation for multi-scale modeling of stressed grain growth with evolving microstructures will be presented. Many local instability problems (such as wrinkling formation) exhibit multiple length scales in the spatial domain. The extension of scale-coupling approach to eigenvalue problems and problems with local instability will be discussed. Due to the difference in the required resolution in spatial discretization at different length scale levels, adaptive computational method plays an important role in the multi-scale modeling. An adaptive numerical method based on a meshfree reproducing kernel approximation will be introduced. Finally, a multi-scale and adaptive modeling of structural failure under blast loading will be presented. Refreshments will be served at 2:30p.m.**ALL FIRST-YEAR MATERIALS SCIENCE GRADUATE STUDENTS ARE REQUIRED TO ATTEND**
Location: Vivian Hall of Engineering (VHE) - 217
Audiences: Everyone Is Invited
Contact: Petra Pearce
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You dont need Rocket Science to help a Brain Surgeon
Fri, Oct 08, 2004 @ 02:45 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
- Using simple science for some practical medical advancesPresented byProfessor Timothy Fisher
Department of Physiology and Biophysics
USC Keck School of MedicineRefreshments will be served at 2:30p.m.**ALL FIRST-YEAR MATERIALS SCIENCE GRADUATE STUDENTS ARE REQUIRED TO ATTEND**Location: Vivian Hall of Engineering (VHE) - 217
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Materials Science Seminar
Fri, Oct 15, 2004 @ 02:45 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Scott Sitzman
Applications Scientist / Western Regional Sales and Applications
HKL Technology, Inc.Speaks on:Electron BackScatter Diffraction (EBSD) in the SEM for characterization of metal, ceramic and mineral microstructuresAbstract:Electron BackScatter Diffraction is a rapidly growing SEM-based technique in materials characterization, used to analyze crystalline solids for crystallographic orientation/texture, grain size and shape, grain boundary character, state of strain, and crystallography-based phase identification. This talk will introduce the technique, discuss modes of sampling and analysis, describe the latest capabilities on modern SEMs and SEM-FIB instruments, and give applications examples in metallurgy and ceramics.Refreshments will be served at 2:30p.m.**ALL FIRST-YEAR MATERIALS SCIENCE GRADUATE STUDENTS ARE REQUIRED TO ATTEND**Location: Vivian Hall of Engineering (VHE) - 217
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Development of Nanostructured Microelectrode Arrays for an Implantable Retinal Prosthesis
Fri, Oct 29, 2004 @ 02:45 AM - 04:00 AM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
THE DEPARTMENT OF MATERIALS SCIENCE & ENGINEERING
PRESENTS A SEMINARbyDr. John J. WhalenBioelectronics Laboratory Doheny Retina Institute
University of Southern CaliforniaSPEAKING ONDevelopment of Nanostructured Microelectrode Arrays for an Implantable Retinal ProsthesisABSTRACT The microelectrode array to be discussed uses a two-dimensional arrangement of microelectrode patches in contact with the surface of the retina to artificially stimulate vision via electrical depolarization of the retinal ganglion cells. Some of the materials-related issues include: 1) microelectrode and substrate biocompatibility, 2) prevention of biological fluid penetration into the device electronics, 3) microelectrode corrosion, and 4) safety issues related to tissue stimulation with electrical current. Materials science and engineering provides a solid platform for addressing these design issues. A method of fabricating microelectrode arrays based on platinum nanowires has been developed and is currently being studied for possible integration into the prosthesis.FRIDAY, OCTOBER 29, 2004
2:45P.M. - 3:30P.M.
(Refreshments will be served at 2:30p.m.)
VHE 217**ALL FIRST-YEAR MATERIALS SCIENCE GRADUATE STUDENTS ARE REQUIRED TO ATTEND**
Location: Vivian Hall of Engineering (VHE) - 217
Audiences: Everyone Is Invited
Contact: Petra Pearce