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NIST Authors in Bold

Displaying 21826 - 21850 of 74194

Effects of fiber gripping methods on single fiber tensile tests: Parametric statistical analyses of tensile strengths and failure strains

May 9, 2013
Author(s)
Jae Hyun Kim, Nathanael A. Heckert, Walter G. McDonough, Kirk D. Rice, Gale A. Holmes
The Kolsky bar test has been widely used in measuring material response under high strain rate conditions. Initial experiments in the literature applying this test to measure single fiber properties for fibers used in soft body armor with the Kolsky bar

FACTS: A Framework for Analysis, Comparison, and Test of Standards

May 9, 2013
Author(s)
Paul W. Witherell, Sudarsan Rachuri, Anantha Narayanan Narayanan, Jae H. Lee
Open and consensus standards play a critical role in enabling globally distributed manufacturing. A close connection between standards development (supply side) and implementation strategies (demand side) is critical for widespread adoption of standards

Incorporating Biometric Software Development Kits into the Development Process

May 9, 2013
Author(s)
Karen Marshall, Ross J. Micheals, Kevin C. Mangold, Kayee K. Hanaoka
Biometric devices have emerged as pervasive and indispensable tools in facilitating security in many industries and governments worldwide—the use of these devices has consistently increased and advanced. However, advancement of the methodologies used to

Metrological Traceability for Guarded-Hot-Plate Apparatus

May 9, 2013
Author(s)
Robert R. Zarr
An approach for establishing metrological traceability for measurement results from guarded-hot-plate apparatus consistent with policy at the National Institute of Standards and Technology (NIST) is presented. A brief example for initiating met-rological

Modeling and Analysis of Single-Plate Shear Connections Under Column Loss

May 8, 2013
Author(s)
Joseph A. Main, Fahim Sadek
This paper presents a computational assessment of the behavior of single-plate shear (“shear tab”) connections in gravity frames under column loss scenarios. Two-span beam assemblies are considered under pushdown loading of the unsupported center column

Practical implementation of a test of event-based corpuscular model as an alternative to quantum mechanics

May 8, 2013
Author(s)
Sergey V. Polyakov, Alan L. Migdall, Ivo P. Degiovanni, Fabrizio Piacentini, Giorgio Brida, Marco Genovese, Paola Traina
We describe in detail the first experimental test that distinguishes between an event-based corpuscular model of the interaction of photons with matter and quantum mechanics. The test looks at the interference that results as a single photon passes through

Simultaneous Spin-Charge Relaxation in Double Quantum Dots

May 8, 2013
Author(s)
Vanita Srinivasa, Katja C. Nowack, Mohammad Shafiei, Lieven M. Vandersypen, Jacob M. Taylor
We investigate phonon-induced spin and charge relaxation mediated by spin-orbit and hyper- fine interactions for a single electron confined within a double quantum dot. A simple toy model incorporating both direct decay to the ground state of the double

Structure and Stability of SnO2 Nanocrystals and Surface-Bound Water Species

May 8, 2013
Author(s)
Rick L. Paul, Hsiu-Wen Wang, David J. Wesolowski, Thomas E. Proffen, Lucus Vicek, Wei Wang, Lawrence F. Allard, Alexander I. Kolesnikov, Mikhail Feygenson, Lawrence M. Anovitz
The structure of SnO2 nanoparticles (avg. 5 nm diameter) with a few layers of water on the surface has been elucidated by atomic pair distribution function (PDF) methods using in situ neutron total scattering data and molecular dynamics (MD) simulations

The Computational Materials Science of Concrete: Past-Present-Future

May 8, 2013
Author(s)
Edward Garboczi
From its small beginnings back in the 1960s, computational materials science has come a long way. The field is currently getting even more exciting with ideas like integrated computational materials engineering [1] being seriously considered in the start

VISCOSITY AND DENSITY OF ALUMINUM OXIDE NANOLUBRICANT

May 8, 2013
Author(s)
Mark A. Kedzierski
This paper presents liquid kinematic viscosity and density measurements of a synthetic polyolester-based aluminum oxide (Al2O3) nanoparticle dispersion (nanolubricant) at atmospheric pressure over the temperature range 288 K to 318 K. Two Al2O3 particles

Controlling the Competition between Optically Induced Ultrafast Spin-Flip Scattering and Spin Transport in Magnetic Multilayers

May 7, 2013
Author(s)
Justin Shaw, Hans Nembach, Thomas J. Silva, Margaret M. Murnane, Henry C. Kapteyn, Martin Aeschlimann, Claus M. Schneider, Emrah Turgut, Stefan Mathias, Patrik Grychtol, Chan La-O-Vorakiat, Dennis Rudolf, Roman Adam
The study of ultrafast dynamics in magnetic materials provides rich opportunities for greater fundamental understanding of correlated phenomena in solid-state matter, because many of the basic microscopic mechanisms involved are as-yet unclear and are

Current induced torques and interfacial spin-orbit coupling: semiclassical modeling

May 7, 2013
Author(s)
Paul M. Haney, Hyun-Woo Lee, Kyung Jin Lee, Aurelien Manchon, Mark D. Stiles
Currents passing through bilayer nanowires with a ferromagnetic layer and a non-magnetic layer with strong spin-orbit coupling, excite magnetic dynamics which cannot be explained with standard models. The dynamics appear to require two torques which can be

Development and Characterization of Continuous Feed Firebrand Generator

May 6, 2013
Author(s)
Samuel L. Manzello, Sayaka Suzuki
Evidence suggests that wind driven firebrand showers are a major cause of structural ignition in Wildland-Urban Interface (WUI) fires. While firebrands have been researched for over four decades, prior studies have focused mainly on how far firebrands fly
Displaying 21826 - 21850 of 74194
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