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Displaying 11226 - 11250 of 73893

Atom Probe Tomography Analysis of the Reference Zircon GJ-1: A Round-Robin Experiment

September 20, 2018
Author(s)
Ann C. Chiaramonti Debay, Paul T. Blanchard, Alexandre La Fontaine, Florent Exertier, Sandra Piazolo, Elena Belousova, Zirong Peng, Baptiste Gault, David W. Saxey, Denis Fougerouse, Steven Reddy, Julie Cairney
In recent years, atom probe tomography (APT) has been increasingly used to study minerals, and in particular Zircons. The mineral Zircon (ZrSiO4) is ideally suited for geochronology by utilising the U-Th-Pb isotope systems, and trace element compositions

Defect-Driven Extreme Magnetoresistance in an I-Mn-V Semiconductor

September 20, 2018
Author(s)
Junjie Yang, Aaron Wegner, Craig Brown, Despina Louca
Semiconducting electronics have been transformed in part due to progress in spin polarized transport. Central to modern day spintronics, contemporary magnetoresistive components are based on ferromagnetic multilayers. New directions in the search for the

A Method for Measuring the Quantity of Drugs on Surfaces in a Forensic Laboratory

September 19, 2018
Author(s)
Edward R. Sisco, Marcela N. Najarro, Amber Burns
While background studies have been commonplace in many occupational fields for a long time, attempts to understand the chemical background in forensics labs has been largely understudied. However, given the increasing sensitivity of instrumentation and

An optical Bragg scattering readout for simultaneous detection of all low-order mechanical modes of gallium nitride nanowires in nanowire arrays

September 19, 2018
Author(s)
Kristine A. Bertness, John P. Houlton, Matthew D. Brubaker, Charles T. Rogers
We report the use of optical Bragg scattering and homodyne interferometry to simultaneously measure all the first order cantilever-mode mechanical resonance frequencies and quality factors (Q) of gallium nitride nanowires (GaN NWs) in 100 NW periodic

Phase-Sensitive Small-Angle Neutron Scattering Experiment

September 19, 2018
Author(s)
Erik Brok, Kathryn L. Krycka, Erika C. Vreeland, Andrew Gomez, Dale L. Huber, Charles Majkrzak
Small angle neutron scattering is a useful technique for determining the structure of biomolecules in solution. However, because of the well-known problem that the phase of the scattered wave is lost in scattering experiments, unambiguous structural

Reference Correlations for the Thermal Conductivity of 13 Inorganic Molten Salts

September 19, 2018
Author(s)
Ch. D. Chliatzou, Marc J. Assael, K.D. Antoniadis, Marcia L. Huber, William A. Wakeham
The available experimental data for the thermal conductivity of the inorganic molten salts (KNO3, LiNO3, NaNO3, KBr, NaBr, RbBr, CsCl, KCl, LiCl, NaCl, RbCl, NaI, and RbI), have been critically examined with the intention of establishing thermal

2017 NIST/ITL Cybersecurity Program: Annual Report

September 18, 2018
Author(s)
Patrick D. O'Reilly, Kristina G. Rigopoulos, Gregory A. Witte, Larry Feldman
Title III of the E-Government Act of 2002, entitled the Federal Information Security Management Act (FISMA) of 2002, requires NIST to prepare an annual public report on activities undertaken in the previous year, and planned for the coming year, to carry

Feature Topic: Enabling Technologies for Smart Internet of Things

September 18, 2018
Author(s)
Hamid Gharavi
This feature topic aims at providing timely and comprehensive overviews of the current state-of-the art in terms of fundamental theoretical innovations and technological advances and towards exploiting smart caching, communications, computing and

Iris Cameras: Standards Relevant for Camera Selection - 2018

September 18, 2018
Author(s)
James R. Matey, George W. Quinn, Patrick J. Grother, Craig I. Watson, Shahram Orandi
This paper is a summary of our current recommendations for iris camera selection. NIST is developing these recommendations in collaboration with the FBI, other US Government entities with interests in the use of iris recognition technology, and the larger

Thermal conductivity of entropy stabilized oxides: approaching the minimum limit in single crystal solid solutions through charge induced atomic-scale disorder

September 17, 2018
Author(s)
Gheorghe Stan, Jeffrey Braun, Christina Rost, Mina Lim, Ashutosh Giri, David Olson, George Kotsonis, Donald Brenner, Jon-Paul Maria, Patrick Hopkins
Manipulating a crystalline material’s configurational entropy though the introduction of unique atomic species can produce novel materials with desirable mechanical and electrical properties. From a thermal transport perspective, large differences between

Structured light in diffuse optical imaging

September 16, 2018
Author(s)
Joseph P. Angelo, Sez-Jade Chen, Marien Ochoa, Ulas Sunar, Sylvain Gioux, Xavier Intes
Diffuse optical imaging probes deep living tissue enabling structural, functional, metabolic, and/or molecular imaging. Recently, thanks to the availability of spatial light modulators, wide-field quantitative diffuse optical techniques have been
Displaying 11226 - 11250 of 73893
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