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Search Publications

NIST Authors in Bold

Displaying 13351 - 13375 of 73697

Enhancing Egress Drills: Preparation and Assessment of Evacuee Performance

July 11, 2017
Author(s)
Steve Gwynne, Erica D. Kuligowski, Karen E. Boyce, Daniel Nilsson, Amanda Robbins, Ruggiero Lovreglio, J.R. Thomas, A. Roy-Poirier
This article explores how egress drills - specifically those related to fire incidents - are currently employed, their impact on safety levels, and the insights gained from them. It is suggested that neither the merits of egress drills are well understood

SATE VI Ockham Sound Analysis Criteria

July 11, 2017
Author(s)
Paul E. Black
In preparation for SATE VI, we present our current thoughts on the Ockham Sound Analysis Criteria track. First, we explain the purpose of the Ockham track and define some terms, such as "sound", "finding", and "site". Then we present the general flow for

Development of NIST Standard Reference Material 2082, a Pathlength Standard for Measurements in the Ultraviolet Spectrum

July 10, 2017
Author(s)
Brian Lang, Aaron A. Urbas, Paul C. DeRose, Hung-Kung Liu, John C. Travis, Steven J. Choquette, Kenneth D. Cole
New spectrophotometers and cuvettes have been designed to allow the measurement of absorbance values from samples using microliter volume sizes. These measurements are done using short pathlengths to decrease the sample volumes required. The major

Equivalent Isotropic Response as a Surrogate for Incident Field Strength

July 9, 2017
Author(s)
Dan Kuester, Duncan McGillivray, William F. Young, John M. Ladbury, Ari Feldman, Adam Wunderlich, Sheryl M. Genco
The strength of a radiated field at some location in free space can be described in terms of the equivalent conducted output from an isotropic probe antenna with a specified reference polarization. This metric has already entered use by various standards

Seasonal variation of total mercury burden in the American alligator (Alligator mississippiensis) at Merritt Island National Wildlife Refuge (MINWR), Florida

July 8, 2017
Author(s)
Frances Nilsen, Jonathan E. Dorsey, Stephen E. Long, Tracey B. Schock, John A. Bowden, Russell H. Lowers, Louis J. Guillette Jr.
Seasonal variation of mercury (Hg) is not well studied in free-ranging wildlife. Atmospheric deposition patterns of Hg have been studied in detail and have been modeled for both global and specific locations with great accuracy and correlates to

Formation of [Cu 2 O 2 ] 2+ and [Cu 2 O] 2+ Toward C-H Bond Activation in Cu-SSZ-13 and Cu-SSZ-39

July 7, 2017
Author(s)
Bahar Ipek, Matthew J. Wulfers, Hacksung Kim, Florian Goeltl, Ive Hermans, Joseph P. Smith, Karl S. Booksh, Craig Brown, Raul F. Lobo
Cu- exchanged small-pore zeolites (CHA and AEI) form methanol from methane (>95% selectivity) using a 3-step cyclic procedure (Wulfers, M. J.; Teketel, S.; Ipek, B.; Lobo, R. F. Chem. Commun. 2015, 51, 4447–4450) with methanol amounts higher than Cu- ZSM-5

In Situ Carbon Dioxide and Methane Measurements from the Los Angeles Megacity Carbon Project

July 7, 2017
Author(s)
Kristal R. Verhulst, Anna Karion, Jooil Kim, Peter Salameh, Chris Sloop, Ralph Keeling, Ray Weiss, Riley Duren, John B. Miller
Concern about rising greenhouse gas levels has motivated many nations to begin mitigating emissions, motivating the need for robust, consistent, traceable greenhouse gas observation methods in complex urban domains. The Los Angeles (LA) Megacity Carbon

Photochemical Properties of CH2=CH-CFCl-CF2Br (4-bromo-3-chloro-3,4,4-trifluoro-1-butene) and CH3-O-CH-(CF3)2 (methyl 2,2,2-trifluoroethyl-1-trifluoromethyl ether): OH Reaction Rate Constant, UV and IR Absorption Spectra.

July 7, 2017
Author(s)
Vladimir L. Orkin, Larissa E. Martynova, Michael J. Kurylo III
Abstract Rate constants for the reactions of hydroxyl radicals (OH) with methyl 2,2,2-trifluoroethyl-1-trifluoromethyl ether (CH3-O-CH-(CF3)2 and 4-bromo-3-chloro-3,4,4-trifluoro-1-butene (CH2=CH-CFCl-CF2Br) have been measured over the temperature range

Rapid Large-Scale Assembly and Pattern Transfer of One-Dimensional Gold Nanorod Superstructures

July 7, 2017
Author(s)
Rana NMN Ashkar, Michael J. A. Hore, Xingchen Ye, Bharath NMN Natarajan, Nicholas J. Greybush, Thomas Lam, Christopher B. Murray
The utility of gold nanorods for plasmonic applications largely depends on the relative orientation and proximity of the nanorods within a material. Through previous studies have demonstrated methods that can generate side-by-side or chain-like nanorod

Demonstration of efficient nonreciprocity in a microwave optomechanical circuit

July 6, 2017
Author(s)
Gabriel A. Peterson, Florent Q. Lecocq, Katarina Cicak, Raymond W. Simmonds, Jose A. Aumentado, John D. Teufel
Abstract The ability to engineer nonreciprocal interactions is an essential tool in modern communication technology as well as a powerful resource for building quantum networks. Aside from large reverse isolation, a nonreciprocal device suitable for

Identification of nonclassical properties of light with multiplexing layouts

July 6, 2017
Author(s)
Jan Sperling, Andreas Eckstein, W.R. Clements, Meritt Moore, Jelmer Renema, Steven Kolthammer, Sae Woo Nam, Adriana Lita, Thomas Gerrits, Ian Walmsley, G.S. Agarwal, Wolfgang Vogel
In our work, we introduce and apply a detector-independent method to uncover nonclassicality. In this contribution, we extend those techniques and give more details on the performed nalysis. We derive the general structure of the positive-operator-valued

MANUFACTURING DATA ANALYTICS USING A VIRTUAL FACTORY REPRESENTATION

July 6, 2017
Author(s)
Sanjay Jain, Guodong Shao, Seungjun Shin
Manufacturing organizations are able to accumulate large amounts of plant floor production and environmental data due to advances in data collection, communications technology, and use of standards. Data analytics can help understand and gain insights from

Phase mask-based multimodal superresolution microscopy

July 6, 2017
Author(s)
Ryan Beams, Jeremiah W. Woodcock, Jeffrey W. Gilman, Stephan J. Stranick
We demonstrate a multimodal superresolution microscopy technique based on a phase masked excitation beam in combination with spatially filtered detection. The theoretical foundation for calculating the focus from a non-paraxial beam with an arbitrary

Universal Interrelation Between Measures of Particle and Polymer Size

July 6, 2017
Author(s)
Luis F. Vargas Lara, Marc L. Mansfield, Jack F. Douglas
The characterization of many objects often involves the determination of a basic set of particle size measures derived mainly from scattering and transport property measurements. For polymers, these basic properties often include the radius of gyration Rg

Connection between thermodynamics and dynamics of simple fluids in pores: impact of fluid-fluid interaction range and fluid-solid interaction strength

July 5, 2017
Author(s)
William P. Krekelberg, Daniel W. Siderius, Vincent K. Shen, Thomas M. Truskett, Jeffrey R. Errington
Using molecular simulations, we investigate how the range of fluid-fluid (adsorbate-adsorbate) interactions and the strength of fluid-solid (adsorbate-adsorbent) interactions impact the strong connection between distinct adsorptive regimes and distinct
Displaying 13351 - 13375 of 73697
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