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Displaying 6451 - 6475 of 73741

Self-terminating Electrodeposition of Pt on WC Electrocatalysts

May 10, 2021
Author(s)
Thomas P. Moffat
Self-terminating electrochemical deposition is used to grow Pt nanoparticles on tungsten monocarbide (WC) from a pH 4 electrolyte containing 3 mmol/L K2PtCl4 - 0.5 mol/L NaCl. An unconventional potentiodynamic deposition program is used where nucleation is

System Explanations: A Cautionary Tale

May 8, 2021
Author(s)
Ellen M. Voorhees
There are increasing calls for systems that are able to explain themselves to their end users to increase transparency and help engender trust. But, what should such explanations contain, and how should that information be presented? A pilot study of

Baseline Pruning-Based Approach to Trojan Detection in Neural Networks

May 7, 2021
Author(s)
Peter Bajcsy, Michael Majurski
This paper addresses the problem of detecting trojans in neural networks (NNs) by analyzing how NN accuracy responds to systematic pruning. This study leverages the NN models generated for the TrojAI challenges. Our pruning-based approach (1) detects any

Optoelectronic Intelligence

May 7, 2021
Author(s)
Jeff Shainline
To design and construct hardware for general intelligence, we must consider principles of both neuroscience and very-large-scale integration. For large neural systems capable of general intelligence, the attributes of photonics for communication and

Study of 5G New Radio (NR) Support for Direct Mode Communications

May 7, 2021
Author(s)
Fernando Cintron, David W. Griffith, Chunmei Liu, Richard A. Rouil, Yishen Sun, Jian Wang, Peng Liu, Chen Shen, Aziza Ben Mosbah, Samantha Gamboa Quintiliani
In public safety communications, direct mode communication is essential to keep first responders connected, especially when there is no network coverage. Direct mode communication is supported in Third Generation Partnership Project (3GPP) Long Term

The Total Costs of Seismic Retrofits: State of the Art

May 7, 2021
Author(s)
Juan Fung, David Butry, Siamak Sattar, Steven McCabe
This article presents the current state-of-practice with respect to quantifying the total cost to retrofit an existing building. In particular, we combine quantitative, qualitative, and heuristic data to provide a taxonomy for understanding the direct and

Metrological Traceability Frequently Asked Questions and NIST Policy

May 6, 2021
Author(s)
Sally Bruce, Antonio Possolo, Robert Watters
The NIST policy on metrological traceability (NIST P 5800.00, which became effective on May 31st, 2019) is transcribed and supplemented with a review of relevant terminology and with a list of frequently asked questions and answers. This list updates and

CONTAM RESULTS EXPORT TOOL

May 5, 2021
Author(s)
Brian Polidoro, Lisa Ng, William Stuart Dols
CONTAM is a multizone indoor air quality and ventilation analysis program developed by the National Institute of Standards and Technology (NIST). Since CONTAM simulation files are binary and not human-readable, the CONTAM Results Export Tool was created to

Dynamical Ground State in the XY Pyrochlore Yb 2 GaSbO 7

May 5, 2021
Author(s)
P. M. Sarte, K. Cruz-Kan, B. R. Ortiz, K. H. Hong, M. M. Bordelon, D. Reig-i-Plessis, M. Lee, E. S. Choi, Matthew Stone, S. Calder, D. M. Pajerowski, L. Mangin-Thro, Yiming Qiu, J. P. Attfield, S. D. Wilson, C. Stock, H. D. Zhou, A. M. Hallas, J. A. Paddison, A. A. Aczel, C. R. Wiebe
The magnetic ground state of the pyrochlore Yb 2GaSbO 7 has remained an enigma for nearly a decade. The persistent spin fluctuations observed by muon spin relaxation measurements at low temperatures have not been adequately explained for this material

JPEG 2000 CODEC Certification Guidance for 1000 ppi Fingerprint Friction Ridge Imagery

May 5, 2021
Author(s)
Shahram Orandi, John M. Libert, John Grantham, Michael Garris, Frederick R. Byers
The document describes the procedure by which applications of JPEG 2000 CODECs will be evaluated with respect to conformance to the NIST guidance for compression of 1000 ppi friction ridge images as detailed in NIST Special Publication 500-289 [NIST3]. The

Magnetic Ordering and Structural Distortion in PrFeAsO Single Crystal Studied by Neutron and X-ray Scattering

May 5, 2021
Author(s)
M. G. Kim, William D. Ratcliff, D. M. Pajerowski, J.-W. Kim, J.-Q. Yan, Jeffrey W. Lynn, A. I. Goldman, A. Kreyssig
We report the magnetic ordering and structural distortion in PrFeAsO crystals, the basis compound for one of the oxypnictide superconductors, using high-resolution x-ray diffraction, neutron diffraction, and x-ray resonant magnetic scattering (XRMS). We

Tunable three-body loss in a nonlinear Rydberg medium

May 5, 2021
Author(s)
James Porto, Alexey Gorshkov, Michael Gullans, D. Ornelas-Huerta, Przemyslaw Bienias, A. Craddock, A. Hachtel, Marcin Kalinowski, Mary Lyon, Steven L. Rolston
Long-range Rydberg interactions, in combination with electromagnetically induced transparency(EIT), give rise to strongly interacting photons where the strength, sign, and form of the interactions are widely tunable and controllable. Such control can be

Vectorizing Green's Identities

May 5, 2021
Author(s)
Alex Yuffa
Green's theorem and Green's identities are well-known and their uses span almost every branch of science and mathematics. In this paper, we derive a vector analogue of Green's three scalar identities and consider some of their uses. We also offer a number

Eliciting Lessons from Small- and Medium-Sized Enterprises for Resilience During and Following Complex Events: Longitudinal Data Collection (Wave 2)

May 4, 2021
Author(s)
Jennifer Helgeson, Juan Fung, Alfredo Roa Henriquez, Ariela Zycherman, Payam Aminpour Mohammadabadi, Claudia Nierenberg, David Butry, Donna Ramkissoon
In 2020, there were 22 natural disasters with losses exceeding $1 billion each in the US (NOAA NCEI, 2021). Economic effects on the areas impacted directly were significant; Swiss Re estimated insured losses to be $83 billion, making 2020 the fifth

Mechanisms of Anelastic Loss in Langasite at Temperatures from 113 K to 1324 K

May 4, 2021
Author(s)
Ward L. Johnson, Yuriy Suhak, Holger Fritze
Synthetic piezoelectric crystals with the structure of langasite (LGS) are being pursued for resonant acoustic sensors that can operate at temperatures exceeding the range of conventional piezoelectric materials. The optimization of these crystals is

The NIST IrisDaily Dataset: Description and Initial Analysis

May 4, 2021
Author(s)
James Matey
This paper describes a dataset, IrisDaily-NIST, that is under construction by NIST. At the present, this dataset has (nearly) daily iris images of a single subject collected with a commercial iris camera over a period of approximately 4 months. The purpose
Displaying 6451 - 6475 of 73741
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