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Search Publications

NIST Authors in Bold

Displaying 15576 - 15600 of 73927

A pseudo-3D model to investigate heat and water transport in large area PEM fuel cells - Part 2: Application on an automotive driving cycle

September 14, 2016
Author(s)
Daniel S. Hussey, J-P Poirot-Crouvezier, M. Chandesris, S. Rosini, David L. Jacobson, Jacob M. LaManna, A. Morin, Y. Bultel
In this work, the pseudo-3D multiphysics model introduced in Part 1 of this two-part series of papers is used to investigate heat and water transport in a proton exchange membrane fuel cell designed for an automotive application. The main advantage of the

Characterizing Indoor Air Quality Performance Using a Graphical Approach

September 14, 2016
Author(s)
Kevin Y. Teichman, Andrew Persily, Steven Emmerich
In this paper, we describe and demonstrate an approach to illustrate the performance of buildings with respect to indoor air quality (IAQ). In the absence of an adequate or agreed-upon IAQ metric(s), we describe a graphical approach to presenting IAQ

Editorial: Special Issue on Industrial Robot Agility

September 14, 2016
Author(s)
Craig I. Schlenoff, Stephen B. Balakirsky, Murad Kurwa
The robotic systems of tomorrow need to be capable, flexible, and agile. These systems need to perform their duties at least as well as human counterparts, be quickly re-tasked to other operations, and cope with a wide variety of unexpected environmental

Grover search and the no-signaling principle

September 14, 2016
Author(s)
Ning Bao, Bouland Adam, Stephen P. Jordan
From an information processing point of view, two of the key properties of quantum physics are the no-signaling principle and the Grover search lower bound. That is, despite admitting stronger-than-classical correlations, quantum mechanics does not imply

Interfacial Symmetry Control of Emergent Ferromagnetism at the Nanoscale

September 14, 2016
Author(s)
Alexander J. Grutter, A. Vailionis, Julie A. Borchers, Brian J. Kirby, C. L. Flint, C. He, E. Arenholz, Y. Suzuki
We demonstrate tunable switching between ferromagnetic and antiferromagnetic order at the CaRuO 3/CaMnO 3 interface that originates from symmetry differences in the tilt and rotation of the oxygen octahedra across the boundary. Interfaces which are

NIST Electron Elastic-Scattering Cross-Section Database, Version 4.0

September 14, 2016
Author(s)
Cedric J. Powell, Aleksander Jablonski, Francesc Salvat, Angela Y. Lee
Version 4.0 of this database (SRD 64) provides values of differential elastic-scattering cross sections, total elastic-scattering cross sections, phase shifts, and transport cross sections for elements with atomic numbers from 1 to 96 and for electron

Polymorphism in the 1:1 Charge-Transfer Complex DBTTF-TCNQ and Its Effects on Optical and Electronic Properties

September 14, 2016
Author(s)
Katelyn Goetz, Jun?ya Tsutsumi, Sujitra Pookpanratana, Jihua Chen, Curt A. Richter, Christina Hacker, Tatsuo Hasegawa, Oana Jurchescu
The organic charge-transfer (CT) complex dibenzotetrathiafulvalene - 7,7,8,8-tetracyanoquinodimethane (DBTTF-TCNQ) is found to crystallize in two polymorphs when grown by physical vapor transport: the known α-polymorph and a new structure, the β-polymorph

Aspect-ratio driven evolution of high-order resonant modes and near-field distributions in localized surface phonon polariton nanostructures

September 13, 2016
Author(s)
Joseph G. Tischler, Chase T. Ellis, Orest Glembocki, Francisco Bezares, Alexander Giles, Richard Kasica, Loretta Shirley, Jeffrey C. Owrutsky, Dmitry Chigrin, Joshua Caldwell
Polar dielectrics have garnered much attention as an alternative to plasmonic metals in the mid- to long-wave infrared spectral regime due to their low optical losses. As such, nanoscale resonators composed of these materials demonstrate figures of merit

Functionalized MoS2 nanorribon as a capacitive displacement sensor for DNA sequencing

September 13, 2016
Author(s)
Alex Smolyanitsky, Tsjerk A. Wassenaar, Eugene Paulechka, Kenneth Kroenlein
We propose an aqueous functionalized molybdenum disulfide nanoribbon suspended over a solid electrode as a capacitive displacement sensor aimed at determining the DNA sequence. The detectable sequencing events arise from the combination of Watson–Crick

The Origin and Application of Leakage-Infiltration Ratios

September 13, 2016
Author(s)
Andrew Persily, Max Sherman, Benjamin Jones
Infiltration is the ingress of outdoor air under normal operating conditions through adventitious openings located in the façade of a building. The importance of reducing infiltration to save energy is highlighted by standards and building codes in many

Three-Dimensional Protonic Conductivity in Porous Organic Cage Solids

September 13, 2016
Author(s)
Ming Liu, Linjiang Chen, Scott Lewis, Samantha Y. Chong, Marc A. Little, Tom Hasell, Iain M. Aldous, Craig Brown, Martin W. Smith, Carole A. Morrison, Laurence J. Hardwick, Andrew I. Cooper
Proton conduction is a fundamental process in biology and in devices such as proton exchange membrane fuel cells. To maximize proton conduction, 3-D conduction pathways are preferred over 1-D pathways, which prevent proton conduction in two-dimensions

Monochromatic Measurements of the JPSS-1 VIIRS Polarization Sensitivity

September 12, 2016
Author(s)
Steven W. Brown, Keith R. Lykke, Jeff McIntire, David Moyer, Eugene Waluschka, Hassan Oudrari, Xiaoxiong Xiong
The polarization sensitivity is a critical parameter that must be characterized for spaceborne remote sensing instruments designed tomeasure reflected solar radiation such as the first Joint Polar-orbiting Satellite System (JPSS-1) Visible Infrared Imaging

OpenCalphad thermodynamic software interface including parallelization

September 12, 2016
Author(s)
Bo Sundman, Ursula R. Kattner, Christophe Sigli, Matthias Stratmann, Romain Le Tellier, Mauro Palumbo, Suzana G. Fries
Thermodynamic data are needed for all kind of simulations of materials processes. For example, for kinetic models thermodynamic quantities, such as chemical potentials, driving forces for precipitation, thermodynamic factors for converting mobilities to

Results of The 2015 NIST Language Recognition Evaluation

September 12, 2016
Author(s)
Hui Zhao, Desire Banse, G R. Doddington, Craig Greenberg, Audrey N. Tong, John M. Howard, Alvin F. Martin, Jaime Hernandez-Cordero, Lisa Mason, Douglas A. Reynolds, Elliot Singer
In 2015, NIST conducted the most recent in an ongoing series of Language Recognition Evaluations (LRE) meant to foster research in language recognition. The 2015 Language Recognition Evaluation (LRE15) featured 20 target languages grouped into 6 language

Conformational Nature of DNAGrafted Chains on Spherical Gold Nanoparticles

September 10, 2016
Author(s)
Jack F. Douglas, Fernando Vargas-Lara
We investigate the conformational state of a simple, coarse–grained molecular model for single–stranded DNA chains (ss-DNA) grafted onto spherical symmetric gold nanoparticles (NPs) and of the grafted layer as a whole by molecular dynamic simulations. In
Displaying 15576 - 15600 of 73927
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