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NIST Authors in Bold

Displaying 16026 - 16050 of 74202

Antiferromagnetic domain wall motion driven by spin-orbit torques

August 16, 2016
Author(s)
Takayuki Shiino, Se-Hyeok Oh, Paul M. Haney, Seo-Won Lee, Gyungchoon Go, Byong-Guk Park, Kyung-Jin Lee
We theoretically investigate dynamics of antiferromagnetic domain walls driven by spin-orbit torques in antiferromagnet/heavy metal bilayers. We show that spin-orbit torques drive antiferromagnetic domain walls much faster than ferromagnetic domain walls

DRILLING DOWN ON SMART MANUFACTURING -- ENABLING COMPOSABLE APPS

August 16, 2016
Author(s)
Boonserm Kulvatunyou, Nenad Ivezic, KC Morris, Simon P. Frechette
One of the most exciting new capabilities in Smart Manufacturing (SM) is the provisioning of manufacturing services as unbundled "apps," which could be significantly more flexible and less expensive to use than the current generation of monolithic

Photochemical transformations of thiolated polyethylene glycol coatings on gold nanoparticles

August 16, 2016
Author(s)
Stacey M. Louie, Justin M. Gorham, Eric A. McGivney, Jingyu Liu, Kelvin B. Gregory, Vincent A. Hackley
Photochemical reactions can result in significant transformations of manufactured nanomaterials in sunlit environments. While transformations of inorganic nanoparticles (NPs) have been investigated extensively, much less attention has been focused on the

Perspectives of Occupants with Mobility Impairments on Fire Evacuation and Elevators

August 15, 2016
Author(s)
Kathryn M. Butler, Susanne M. Furman, Erica D. Kuligowski, Richard D. Peacock
The purpose of this report is to provide guidance for designers, building managers, and fire emergency personnel on how to improve communication, procedures, and elevator usage during fire emergencies, based on a study of the evacuation experiences of

A quantum enigma machine: Experimentally demonstrating quantum data locking

August 12, 2016
Author(s)
Daniel Lum, Michael S. Allman, Thomas Gerrits, Cosmo Lupo, Seth Lloyd, Varun Verma, Sae Woo Nam, John Howell
During the first half of the 20th century, enigma machines (i.e., pseudorandom polyalphabetic ciphers) of increasing sophistication gave better resistance against brute-force codebreaking attacks. However, the ultimate form of cryptographic security is

Demonstration of EPR steering using single-photon path entanglement and displacement-based detection

August 12, 2016
Author(s)
T Guerreiro, F. Monteiro, A Martin, J B. Brask, T Vertesi, Boris Korzh, Felix Bussieres, Varun Verma, Adriana Lita, Richard Mirin, Sae Woo Nam, Francesco Marsili, Matthew D. Shaw, Nicolas Gisin, Nicolas Brunner, Hugo Zbinden, Robert Thew
We demonstrate the violation of an EPR steering inequality developed for single photon path entanglement with displacement-based detection. We use a high-rate source of heralded single-photon path-entangled states, combined with high efficiency

Alternate Substrates for Measuring Cigarette Ignition Propensity Using ASTM E 2187

August 11, 2016
Author(s)
Richard G. Gann, Edward J. Hnetkovsky, William F. Guthrie
ASTM E 2187 has become the internationally referenced standard for designing and specifying less fire-prone cigarettes. In this Standard, a lit cigarette is placed on a substrate consisting of a number of layers of filter paper. The metric is whether the

Broadband Coherent Anti-Stokes Raman Scattering

August 11, 2016
Author(s)
Charles H. Camp
Broadband coherent anti-Stokes Raman scattering (BCARS) microspectroscopy is a unique label-free imaging modality that provides detailed chemical information at each pixel. In minutes, this technique captures a “hyperspectral” cube that co-registers

Design, sensitivity analysis, and testing of a Caenorhabditis elegans nanoecotoxicity assay

August 11, 2016
Author(s)
Shannon Hanna, Gregory A. Cooksey, Bryant C. Nelson, John T. Elliott, Elijah J. Petersen
Increasing production and usage of engineered nanomaterials (ENMs) has generated widespread interest in measuring their environmental and human health effects. However, the lack of standardized methods for these measurements has often led to contradictory

Interlaboratory Study of an Alternate Substrate for Use in ASTM E 2187

August 11, 2016
Author(s)
Richard G. Gann, Morgan Bruns, Edward J. Hnetkovsky, William F. Guthrie
ASTM E 2187 has become the internationally referenced standard for designing and specifying less fire-prone cigarettes. In this test method, a lit cigarette is laid on multiple layers of filter paper, and the observer identifies whether the cigarette burns

Key Recovery Attack on Cubic Simple Matrix Encryption

August 11, 2016
Author(s)
Ray Perlner, Dustin Moody, Daniel Smith-Tone
In the last few years multivariate public key cryptography has experienced an infusion of new ideas for encryption. Among these new strategies is the ABC Simple Matrix family of encryption schemes which utilize the structure of a large matrix algebra to

Microwave Radiometry of Blackbody Radiation

August 11, 2016
Author(s)
Dazhen Gu
We outline the theoretical formulation of radiometry of the free-space radiation emitted by a blackbody target. Simulation shows a much smaller drop of radiation intensity of a Lambertian source than that of an incoherent source in the near-field region

Standard Operation Procedures (SOPs) for the Palla VM-KT Vibrating Cryomill: Production of Fresh Frozen Standard Reference and Control Materials (SRMs/CMs) at the NIST Reference Material Production Facility

August 11, 2016
Author(s)
Amanda J. Moors, Rebecca S. Pugh, Jody R. Evans, Jennifer M. Ness, Debra L. Ellisor, Melannie J. Bachman
The NIST Reference Materials Production (RMP) Facility at the Hollings Marine Laboratory produces fresh, frozen powder materials which are used as Standard Reference Materials (SRMs) and Control Materials (CMs) from frozen biological, environmental

Using Design of Experiments in Finite Element Modeling to Identify Critical Variables in Laser Powder Bed Fusion

August 11, 2016
Author(s)
Li Ma, Jeffrey T. Fong, Brandon Lane, Shawn P. Moylan, James J. Filliben, N. Alan Heckert, Lyle E. Levine
In Laser Powder Bed Fusion (L-PBF) Finite Element Analysis (FEA), input of accurate material and simulation parameters is critical for accurate predictions. It is challenging and expensive to measure and control all possible material properties and process
Displaying 16026 - 16050 of 74202
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