Conferences, Lectures, & Seminars
Events for October
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Material Science Seminar
Fri, Oct 06, 2006 @ 02:30 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
MODELING OF MATERIALS AND CHEMISTRY AT EXTREME CONDITIONSDr. Sergey Zybin
California Institute of TechnologyFundamental physics and chemistry of materials behavior in extreme conditions are important for understanding material transformation and processes during shock materials synthesis, high-pressure phase transformations, femtosecond laser ablation, detonation, geophysical processes in the core of the Earth and other planets, and hypervelocity impacts of comets. Usually these conditions are created by a gigantic release of energy in the matter or by compression caused by the shock waves sent through the material. Processes of shock compression and detonation often take place at sub-picosecond and sub-nanometer time and length scales. Therefore, they are ideal for studying by molecular dynamics which can grasp at the atomic level the essentials of many non-equilibrium processes of material transformation and chemical reactions in condensed phase under extreme conditions.Date: Friday, October 6, 2006Time: 2:30pmLocation: SLH 102Refreshments will be providedFirst year MASC students are required to attend.Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Lyman L. Handy Colloquium
Thu, Oct 12, 2006 @ 12:45 PM - 02:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
"Molecular Engineering of Stem Cell and Gene Therapies"Professor David Schaffer
Department of Chemical Engineering &The Helen Wills Neuroscience Institute
University of California at Berkeley & Lawrence Berkeley National LaboratoryAbstractNew molecular therapies based on gene delivery and stem cells have significant potential for tissue engineering and repair for numerous diseases. Before these approaches can succeed, however, a number of fundamental engineering challenges must be overcome, particularly in the nervous system, our tissue of interest.Gene therapy, the introduction of genetic material to the cells of a patient for therapeutic benefit, has the potential to directly translate the basic knowledge derived from the Human Genome Project into therapeutic benefit. However, the vehicles or vectors that deliver therapeutic genes still require engineering for enhanced efficiency and safety. Our efforts are focused on modifying these vehicles at the molecular level to overcome the common dilemma faced by all: they did not evolve in nature to perform the therapeutic endeavors we ask of them. We have developed novel approaches to engineer already promising gene delivery vehicles, the adeno-associated viral vector and lentiviral vector. Specifically, we are applying directed evolution approaches to overcome several challenges in vector performance, including its mass transport through tissue and cells and interactions with the immune system.Furthermore, gene therapy has enormous potential to synergize with stem cells to repair damaged tissue. Neural stem cells are present throughout the adult nervous system, but we must learn at a quantitative, molecular level the signaling mechanisms that control these cells before we can harness them. We have identified novel signaling factors that regulate neural stem cells and are investigating the mechanisms by which the cells process these signals into functional decisions. Specifically, we are exploring the hypothesis that cell switching between multiple steady states in gene regulation networks can serve as a general mechanism for the critical fate choices these cells must make as they differentiate into specific cell types, such as neurons. We hope that this basic knowledge can be applied, in combination with improved gene delivery vehicles, to regenerate neural tissue from the effects of neurodegenerative disorders such as Alzheimer's, Parkinson's, and Lou Gehrig's Diseases.Thursday, October 12, 2006
12:45 p.m.
OHE 122
Refreshments will be served after the seminar in the HED Lobby
The Scientific Community is cordially invited.
Location: Olin Hall of Engineering (OHE) - 122
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Material Science Seminar
Fri, Oct 13, 2006 @ 02:30 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
The Relationship Between Crystallographic Pitting and Metallic Bonding. Dr. Scott LillardMaterials Science & Technology Division
Los Alamos National Laboratory
Los Alamos, New Mexico Over the past half-century numerous authors have reported relationships between pitting corrosion and crystallographic orientation (for example vs. directions). This phenomenon is commonly referred to as corrosion etch pitting and the observations associated with it can generally be divided into two categories: 1) relationships between pitting susceptibility (initiation) and crystallographic orientation and 2) relationships between pit morphology (propagation) and crystallographic orientation. The formation of corrosion etch pits in metals, both initiation and propagation, is often attributed to surface energy. Surface energy is a fairly general term used to describe dangling bonds at a free surface - more closely packed surfaces having lower surface energy as they loose the fewest number of bonds per unit area when the new surface is formed. However, this simple "hard-sphere" model of the surface does not predict experimental observations in etch pitting. This does not mean that bonding does not play a role in etch pitting, rather, that our method or calculating surface properties needs to be improved. Here, we introduce a novel materials simulation method to quantify the influence of coordination-dependent bonding on etch pitting. In our model surface properties arising from metal-metal bonding are evaluated by calculating atomic embedding energies. We will introduce this method and demonstrate its accuracy by comparing predicted pit morphologies in magnesium with those calculated in our model.Scott Lillard is a Technical Staff Member in the Materials Science & Technology Division of the Los Alamos National Laboratory. He received his Ph.D. in Materials Science and Engineering from the G.W. Whiting School of Engineering at the Johns Hopkins University in 1992. He is the author of over 50 technical publications in the field of corrosion and is on the editorial boards of Corrosion, Journal of Materials Research, and Journal of Corrosion Science Engineering and Technology. His interests include experimental research in the areas of localized corrosion, oxide films, environmental fracture, and hydrogen reaction kinetics.All first year MASC students are required to attend.Refreshments will be provided.Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Petra Pearce
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The Future and Challenges of Technology for the Prosperity and Well-Being of the World
Mon, Oct 16, 2006 @ 03:30 PM - 05:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Dr. Abolhassan Vafai Professor International & Scientific Cooperation Director of SUT Civil Engineering Department Sharif University of Technology Abstract In this seminar, an overview of the important role which technology plays in our everyday lives and in improving standards of living will be presented. Then, a few of the emerging technologies, which will change the way we live today, will be introduced. In addition, a close look at the economically fast developing countries, which will soon dominate the world market, will help us to understand the problems, which developed countries, may face in the future. Finally, those challenges which technology may face in the future in order to make its promises become true are examined. Refreshments will be served after the seminar in the HEDCO lobby. Audiences: Everyone is Invited Posted by: iraj ershaghi
Location: Hedco Pertroleum and Chemical Engineering Building (HED) - co116
Audiences: Everyone Is Invited
Contact: iraj ershaghi
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Material Science Seminar
Fri, Oct 20, 2006 @ 02:30 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Research by Neutron Scattering: Tradition and Outlook Gian P. Felcher*Argonne National Laboratory,
Argonne IL 60439In the past decades neutron scattering has established itself as a primary tool to unravel the structure and dynamics of solids and liquids. In its prime, the technique opened entirely new fields in condensed matter research, by defining the role of hydrogen in organic materials, by determining the complex structures of spins in magnetic materials, by mapping the phonon spectra of crystalline solids and by defining the scaling coefficients in the neighborhood of phase transitions. Later, reaching maturity, neutron scattering become a general probe used by the wider scientific and technical community: chemistry, engineering, biology. In the same spirit, we now assist to a resurgent interest in neutron scattering, with new sources becoming ready in United States (Spallation Neutron Source), Japan (J-Park) and England (second target station of ISIS). These new sources produce neutron by a spallation process, rather than by fission as in conventional reactor, providing a brilliancy of "neutron light" up to hundredfold that presently available. These new sources will permit to unravel the issues raised by the manifacture of nanostructures, studying for instance the mechanisms of catalytic reactions, the phase transformations in biomimetic membranes and the synthesis of novel carbon nanomaterials. However, the new sources are creating a new challenge, by generating a tremendous amount of data that has to be digested and analyzed in reasonable time. It is becoming imperative (and this is a role of the computer community) to start a parallel effort to provide adequate and transparent visualization of the data, to assist with numerical analysis when the complexity of the problem prevents analytical solutions, and to generate simulated scattering patterns starting from reasonable models in real space.*work done under the auspices of the U.S. D.O.E., Office of B. E. S., under Contract W31-109-ENG-38.First year MASC students are required to attend.Refreshments will be provided.Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Mork Family Department Distinguished Lecture Series
Thu, Oct 26, 2006 @ 12:30 PM - 02:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Biomolecules, Nanostructures and Interfaces -Time Resolved Vibrational Spectroscopy of
Materials and Material TransformationsProfessor Dana D. Dlott
School of Chemical Sciences and
Fredrick Seitz Materials Research Laboratory
University of Illinois at Urbana-ChampaignIn this talk I will discuss novel techniques of ultrafast laser vibrational spectroscopy and their applications to materials and material transformations. These techniques provide detailed pictures of molecular dynamics with the kind of ultrahigh time and space resolution that has previously been available only in computer simulations. Illustrative examples will be presented including: combustion of energetic materials containing nanoparticles, structural fluctuations at the active sites of proteins, energy transduction in molecular nanostructures and interfaces, and electrochemical processes at nanostructured fuel cell electrodes.Bio: Dana D. Dlott received a B.A. degree from Columbia University in 1974 and a Ph.D. from Stanford University in 1979 under the supervision of Prof. Michael D. Fayer. In 1979 he joined the faculty at the University of Illinois. Dlott is an experimental physical chemist known for his novel applications of ultrafast nonlinear coherent spectroscopic methods to condensed phase dynamics. Current research in his laboratory includes studies of nanomaterials, molecular and biomolecular materials, shock compression science, fundamental mechanisms of energetic materials including nanotechnology materials, dynamics of surfaces and interfaces, electrochemical surface science, and applications of lasers in imaging science.
He is an Alfred P. Sloan Fellow and a Fellow of AAAS, APS and OSA
Location: Hedco Pertroleum and Chemical Engineering Building (HED) - 116
Audiences: Everyone Is Invited
Contact: Petra Pearce