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Displaying 43101 - 43125 of 143796

OOF3D: An Image-Based Finite Element Solver for Materials Science

March 28, 2012
Author(s)
Valerie R. Coffman, Andrew C. Reid, Stephen A. Langer, Gunay Dogan
Recent advances in experimental techniques (micro CT scans, automated serial sectioning, electron back-scatter diffraction, synchrotron radiation x-rays) have made it possible to characterize the full, three dimensional structure of real materials. Such

Comment on "Magnetic Structure of Gd 2 Ti 2 O^d7"

March 27, 2012
Author(s)
J. R. Stewart, G. Ehlers, A. S. Wills, S.T. Bramwell, Jason S. Gardner
M. W. Long and collaborators [Phys. Rev. B, 83 054422 (2011)] recently proposed solutions to the magnetic structure of gadolinium titanate that differ to those previously reported bu us [J. R. Stewart, G. Ehlers, A. S. Wills, S. T. Bramwell and J. S

A Matter of Policy

March 26, 2012
Author(s)
David F. Ferraiolo, Jeffrey M. Voas, George Hurlburt
This paper discusses system security policies. System policies are the set of rules that when implemented afford a strategy for the protection of information. The policy objectives are diverse and span the social-economic spectrum. System policies govern

Time-Resolved Infrared Spectroscopy of an [FeFe]-Hydrogenase Model Compound

March 26, 2012
Author(s)
Edwin J. Heilweil
Naturally occurring hydrogenases catalyze the reaction of H+ to form H2 gas. To develop a hydrogen source that is not reliant on fossil fuels, synthetic [FeFe]-hydrogenase model species are being studied. These compounds have a wing-like structure with a

In Situ Raman Monitoring of Ring-Opening Copolymerizations

March 25, 2012
Author(s)
Matthew T. Hunley, Santanu S. Kundu, Peter M. Johnson, Kathryn Beers
Recent advances in enzyme, metal, and organic catalysts have enabled the development of advanced functional polymers from cyclic ester and cyclic carbonate monomers. In this work, we present an in situ technique to monitor ring-opening polymerization using

Flexible polyurethane foam with well characterized and reproducible smoldering

March 24, 2012
Author(s)
Mauro Zammarano, Szabolcs Matko, Rick D. Davis, Roland H. Kraemer
Smoldering is a self-sustaining heterogeneous oxidation reaction that induces a slow, low temperature, flameless combustion.1 Flexible polyurethane foams (PUF) are particularly prone to smoldering due to their high air permeability and low density. In this
Displaying 43101 - 43125 of 143796
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