Tags: research seminar

Resources (221-240 of 328)

  1. Middleware Support for Virtual Distributed Environments in a Shared Distributed Infrastructure

    11 Apr 2006 | | Contributor(s):: Dongyan Xu

    The job and service-oriented paradigm of the Grid enables a wide spectrum of applications to share the massive computational power across the Internet. In this talk, I will present a complementary paradigm of virtual distributed environments to accommodate arbitrary parallel/distributed...

  2. Molecular Dynamics Studies of Gaseous Transport

    05 Apr 2006 | | Contributor(s):: Ki-Ho Lee, Jason Myers, Susan Sinnott

    Carbon nanotubes (CNTs) have generated a great deal of interest due to their unique properties. In this study, we examine the transport properties of various nanotubes using REBO-MD to determine the effects of diameter and chirality on transport mode. Both oxygen and methane were diffused through...

  3. Mechanical Properties of Surfactant Aggregates at Water-Solid Interfaces

    05 Apr 2006 | | Contributor(s):: Patrick Chiu, Kunal Shah, Susan Sinnott

    This is a talk on the mechanical properties of surfactant aggregates at water-solid interfaces using Micelle-MD. This includes silica indentations of micelles with comparison to experimental data and graphite indentation of Micelle.

  4. Tribological Properties of Carbon Nanotube Bundles

    03 Apr 2006 | | Contributor(s):: SeongJun Heo, Susan Sinnott

    The tribological properties of carbon nanotube(CNT) bundles are investigated in this research using classical molecular dynamics(MD) simulations. Bundle of hollow single walled CNT or CNT filled with C60 is placed between two hydrogen-terminated amorphous diamond-like carbon(DLC) substrates. The...

  5. The Effect of Temperature Control on the Mechanical Behavior of Carbon Nanotubes

    29 Mar 2006 | | Contributor(s):: SeongJun Heo, Susan Sinnott

    The effect of thermostat configurations on the mechanical behavior of empty and butane (n-C4H10) filled (10,10) carbon nanotubes (CNTs) is examined using classical, atomistic, molecular dynamics (MD) simulations. In particular, the influence of different types of thermostats, relative numbers of...

  6. Mark Ratner Interview on Nanotechnology

    23 Mar 2006 | | Contributor(s):: Mark Ratner, Krishna Madhavan

    Nanotechnology interview with Krishna Madhavan.

  7. Irradiation and Nanomechanics of Multi-Walled Carbon Nanotubes

    23 Mar 2006 | | Contributor(s):: Sharon Pregler, Susan Sinnott

    Irradiation of nanotube structures with electron and ion beams has been used to produce functionalized nanotubes and fundamentally new structures, including junctions. Here, we build on previous studies to investigate the low-energy electron and ion (Ar and CF3) beam irradiation of triple walled...

  8. Engineering the Fiber-Matrix Interface in Carbon Nanotube Composites

    23 Mar 2006 | | Contributor(s):: Sharon Pregler, Yanhong Hu, Susan Sinnott

    Particle depositions on polymer and carbon substrates to induce surface chemical modification are a growing research topic in particle-surface interactions due to localized deposition energy and the high density of molecules impacting the surface. Previous simulations have shown that particle...

  9. Bending Properties of Carbon Nanotubes

    21 Mar 2006 | | Contributor(s):: SeongJun Heo, Susan Sinnott

    The effect of filling carbon nanotubes on the mechanical, especially bending, behavior of empty and filled (10,10) carbon nanotubes (CNTs) is examined using classical, atomistic, molecular dynamics (MD) simulations. In particular, influences of different filling materials like C60 or other CNT...

  10. Creating Research Links between Science at the Nanoscale and Science Education

    28 Feb 2006 | | Contributor(s):: Nora H. Sabelli

    This talk will address what is needed to reduce the gap between current science education and science education that incorporates the ideas in current nanoscience. The ability to manipulate matter at increasingly smaller scales of distance and time has blurred the boundaries between disciplines....

  11. Metal Oxide Nanowires: Synthesis, Characterization and Device Applications

    07 Mar 2006 | | Contributor(s):: Jia Grace Lu

    Various metal oxide nanowires, such as ZnO, SnO2, Fe2O3, In2O3 and Ga2O3, have been synthesized by chemical vapor deposition method. Their structures and properties are characterized by TEM, SEM, XRD, AFM, photoluminescence, photoconductance, scanning surface potential microscopy, and electrical...

  12. The nanoHUB Science Gateway

    07 Mar 2006 | | Contributor(s):: Sebastien Goasguen

    The TeraGrid Science Gateways program was initiated to expand the influence of TeraGrid resources through back-end integration into community developed portals and desktop applications. Nancy Wilkins-Diehr, SDSC, TeraGrid Area Director for Science Gateways will give a brief overview of the...

  13. Launch of a Nanoscale Informal Science Education Network

    21 Feb 2006 | | Contributor(s):: larry bell

    The Museum of Science, Boston, in partnership with the Science Museum of Minnesota and the Exploratorium in San Francisco, has been selected by the National Science Foundation (NSF) to form and lead a national Nanoscale Informal Science Education Network (NISE Network) comprised of multiple...

  14. Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond

    13 Feb 2006 | | Contributor(s):: Mark Ratner, Abraham Nitzan, Misha Galperin

    Current experimental efforts are clarifying quite beautifully the nature of charge transport in so-called molecular junctions, in which a single molecule provides the channel for current flow between two electrodes. The theoretical modeling of such structures is challenging, because of the...

  15. Service-Oriented Science: Scaling eScience Application & Impact

    08 Feb 2006 | | Contributor(s):: Ian Foster

    My work is frequently motivated by the information technology concerns of "big science", a frequently fascinating source of problems for the computer scientist due to the broad scope and ambitious goals of many scientific communities. I speak here about work that seeks to rethink science's...

  16. Active Photonic Nanomaterials: From Random to Periodic Structures

    06 Feb 2006 | | Contributor(s):: Hui Cao

    Active photonic nanomaterials, which have high gain or large nonlinearity, are essential to the development of nanophotonic devices and circuits. In this talk, I will provide a review of our recent research activities related to the fabrication of active photonic nanomaterials and the development...

  17. Optimization of Transistor Design for Carbon Nanotubes

    20 Jan 2006 | | Contributor(s):: Jing Guo

    We have developed a self-consistent atomistic simulator for CNTFETs.Using the simulator, we show that a recently reported high-performanceCNTFET delivers a near ballistic on-current. The off-state, however, issignificantly degraded because the CNTFET operates like anon-conventional Schottky...

  18. A 3D Quantum Simulation of Silicon Nanowire Field-Effect Transistors

    17 Jan 2006 | | Contributor(s):: Mincheol Shin

    As the device size of the conventional planar metal oxide semiconductor field effect transistor(MOSFET) shrinks into the deep sub micron regime, the device performance significantly degradesmainly due to the short-channel effect. The silicon nanowire field-effect transistor (SNWFET) isconsidered...

  19. How Can Your Educational Modules Contain Interactive Online Simulation?

    28 Feb 2005 | | Contributor(s):: Gerhard Klimeck

    The Network for Computational Nanotechnology (NCN) is a multi-university, NSF-funded initiative with a mission to lead in research, education, and outreach to students and professionals, while at the same time deploying a unique web-based cyber-infrastructure to serve the nation''s National...

  20. Designing Nanocomposite Materials for Solid-State Energy Conversion

    10 Nov 2005 | | Contributor(s):: Timothy D. Sands

    New materials will be necessary to break through today's performance envelopes for solid-state energy conversion devices ranging from LED-based solid-state white lamps to thermoelectric devices for solid-state refrigeration and electric power generation. The combination of recent materials...