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From Vision to Reality: The NNI at Five Years
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11 Apr 2006 | | Contributor(s)::
Science and engineering are at the heart of the human endeavor leading to a "knowledge society." They also are the primary drivers of global technological competition. The newest key player in this science and technology arena is nanotechnology, the ability to organize individual atoms and...
The Rush to Market, Lack of Knowledge, and Public Trust
What should rivet our attention now is the rush to get nano products into the market long before the nanoscale phenomena these products exploit are understood. Nanoscale materials often present unusual structures and activities as compared to ordinary-scale amounts of the same material. Research...
Real-time Technology Assessment
Real-time technology assessment (RTTA) is a social technology that relies on fundamental understandings of the social, moral, political, and economic dynamics of knowledge-based innovation that have developed over the past three decades. These understandings reveal the complex, value-laden...
Nanotechnology comprises the techniques for making things small (<100 nm) — i.e., nanopatterning — and the resulting applications, ranging from the results of undirected nanopatterning such as Goretex, paint, and reactive gold nanoparticles, to those of directed nanopatterning such as...
EDA Challenges in Nanoscale Design: A Synopsys Perspective
Rich Goldman gives an overview of the current state ofthe semiconductor and EDA (Electronic Design Automation) industry with aspecial focus on the impact of nanometer scale design on design tools andthe economics of the industry.
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...
Molecular Dynamics Studies of Gaseous Transport
05 Apr 2006 | | Contributor(s):: Ki-Ho Lee, Jason, 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...
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.
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...
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...
Mark Ratner Interview on Nanotechnology
23 Mar 2006 | | Contributor(s):: Mark Ratner, Krishna Madhavan
Nanotechnology interview with Krishna Madhavan.
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...
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...
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...
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....
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...
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...
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...
Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond
13 Feb 2006 | | Contributor(s):: Mark Ratner, Abraham Nitzan,
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...
Service-Oriented Science: Scaling eScience Application & Impact
08 Feb 2006 | | Contributor(s)::
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...