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Middleware Support for Virtual Distributed Environments in a Shared Distributed Infrastructure
Online Presentations | 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...
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Molecular Dynamics Studies of Gaseous Transport
Online Presentations | 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...
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Mechanical Properties of Surfactant Aggregates at Water-Solid Interfaces
Online Presentations | 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.
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Tribological Properties of Carbon Nanotube Bundles
Online Presentations | 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...
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The Effect of Temperature Control on the Mechanical Behavior of Carbon Nanotubes
Online Presentations | 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...
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Mark Ratner Interview on Nanotechnology
Online Presentations | 23 Mar 2006 | Contributor(s):: Mark Ratner, Krishna Madhavan
Nanotechnology interview with Krishna Madhavan.
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Irradiation and Nanomechanics of Multi-Walled Carbon Nanotubes
Online Presentations | 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...
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Engineering the Fiber-Matrix Interface in Carbon Nanotube Composites
Online Presentations | 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...
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Bending Properties of Carbon Nanotubes
Online Presentations | 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...
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Creating Research Links between Science at the Nanoscale and Science Education
Online Presentations | 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....
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Metal Oxide Nanowires: Synthesis, Characterization and Device Applications
Online Presentations | 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...
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The nanoHUB Science Gateway
Online Presentations | 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...
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Launch of a Nanoscale Informal Science Education Network
Online Presentations | 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...
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Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond
Online Presentations | 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...
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Service-Oriented Science: Scaling eScience Application & Impact
Online Presentations | 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...
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Active Photonic Nanomaterials: From Random to Periodic Structures
Online Presentations | 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...
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Optimization of Transistor Design for Carbon Nanotubes
Online Presentations | 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...
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A 3D Quantum Simulation of Silicon Nanowire Field-Effect Transistors
Online Presentations | 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...
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How Can Your Educational Modules Contain Interactive Online Simulation?
Online Presentations | 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...
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Designing Nanocomposite Materials for Solid-State Energy Conversion
Online Presentations | 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...