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Search Publications

NIST Authors in Bold

Displaying 13501 - 13525 of 73697

Normal-phase liquid chromatography retention behavior of polycyclic aromatic hydrocarbon and their methyl-substituted derivatives on an aminopropyl stationary phase

June 16, 2017
Author(s)
Walter Wilson, Hugh Hayes, Lane Sander, Andres D. Campiglia, Stephen Wise
Retention indices for 124 polycyclic aromatic hydrocarbons (PAHs) and 62 methyl-substituted (Me-) PAHs were determined using normal-phase liquid chromatography (NPLC) on a aminopropyl (NH2) stationary phase. PAH retention behavior on the NH2 phase is

Value Assignment of Vitamin D Metabolites in Vitamin D Standardization Program (VDSP) Serum Samples

June 16, 2017
Author(s)
Karen W. Phinney, Johanna Camara, Susan Tai, Lane C. Sander, Stephen A. Wise, Linde A. De Grande, Linda M. Thienpont, Antonio M. Possolo, Blaza Toman, Christopher T. Sempos, J. M. Betz, Paul M. Coates
Assay variability has been cited as an obstacle to establishing optimal vitamin D exposure. As part of the Vitamin D Standardization Program (VDSP) effort to standardize the measurement of total 25(OH)D, value assignment of total 25(OH)D in 50 single donor

A Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene

June 15, 2017
Author(s)
Libo Li, Rui-Baio Lin, Rajamani Krishna, Xiaoqing Wang, Bin Li, Hui Wu, Jinping Li, Wei Zhou, Banglin Chen
The removal of trace amount of propyne from propylene is critical for the production of polymer-grade propylene. We herein report the first example of metal-organic frameworks of flexible-robust nature for the efficient propyne/propylene separation. The

Calibration of spectral responsivity of IR detectors in the range from 0.6 mm to 24 mm

June 15, 2017
Author(s)
Vyacheslav B. Podobedov, George P. Eppeldauer, Leonard M. Hanssen, Thomas C. Larason
We report the upgraded performance of the National Institute of Standards and Technology (NIST) facility for spectral responsivity calibrations of infrared (IR) detectors in both radiant power and irradiance measurement modes. The extension of the

Optimized Separating Acetylene from Carbon Dioxide and Ethylene in a Microporous Material

June 15, 2017
Author(s)
Rui-Biao Lin, Libo Li, Hui Wu, Hadi Arman, Bin Li, Rong-Guang Lin, Wei Zhou, Banglin Chen
Selective separation of acetylene (C 2Hd2^)from carbon dioxide (CO 2) or ethylene (C 2H 4) needs specific porous materials whose pores can realize sieving effects while pore surfaces can differentiate their recognitions for these molecules of similar

Randomness in nonlocal games between mistrustful players

June 15, 2017
Author(s)
Carl A. Miller, Yaoyun Shi
If two quantum players at a nonlocal game G achieve a superclassical score, then their measurement outcomes must be at least partially random from the perspective of any third player. This is the basis for device-independent quantum cryptography. In this

Critical Evaluation of Thermodynamic Properties for Halobenzoic Acids Through Consistency Analyses for Results from Experiment and Computational Chemistry

June 14, 2017
Author(s)
Robert D. Chirico, Andrei F. Kazakov, Ala Bazyleva, Vladimir Diky, Kenneth Kroenlein, Vladimir N. Emel'yanenko, Sergey P. Verevkin
Thermodynamic properties of the twelve monohalobenzoic acids are critically evaluated through application of computational chemistry methods for the ideal-gas phase and thermodynamic consistency assessment of properties determined experimentally and

Metabolomics Analysis of Effects of Commercial Soy-based Protein Products in Red Drum (Sciaenops ocellatus)

June 14, 2017
Author(s)
Fabio Casu, Aaron Watson, Justin Yost, John Leffler, Gibson Gaylord, Frederic Barrows, Paul A. Sandifer, Dan Bearden, Michael R. Denson
In this study we investigated the metabolic effects of four different commercial soy-based protein products on red drum (Sciaenops ocellatus) using NMR-based metabolomics along with unsupervised principal component analysis (PCA) to evaluate metabolic

Microstructure Knowledge Systems for Capturing Process-Structure Evolution Linkages

June 14, 2017
Author(s)
James A. Warren, Daniel Wheeler, David Brough, Surya Kalidindi
This paper develops and demonstrates a novel data science framework for capturing and communicating critical information regarding the evolution of material structure in spatiotemporal multiscale simulations of various processing operations employed by the

Progress on Single Photon Detector Efficiency Calibrations at NIST

June 14, 2017
Author(s)
Thomas Gerrits, John H. Lehman, Alan Migdall, Sae Woo Nam, Igor Vayshenker, Chih-Ming Wang
We report on our progress towards implementing a measurement service aimed at the calibration of single-photon detectors. We present how our calibration is tied to the calibration of our transfer standard optical fiber power meters. We also developed and

Quantum Critical Point in the Sc-Doped Itinerant Antiferromagnet TiAu

June 14, 2017
Author(s)
E. Svanidze, T. Besara, J. K. Wang, D. Geiger, L. Prochaska, J. M. Santiago, Jeffrey W. Lynn, S. Paschen, E. Morosan
We present the first experimental realization of a quantum critical point in an itinerant antiferromagnetic realization of a quantum critical point in an intinerant antiferromagnet composed of non-magnetic constituents, TiAu. By partially substituting Ti

Wake Mode Sidebands and Instability of Modelocked Lasers with Slow Saturable Absorbers

June 14, 2017
Author(s)
Shaokang Wang, Stefan Droste, Laura C. Sinclair, Ian R. Coddington, Nathan R. Newbury, Curtis R. Menyuk
Passively modelocked lasers with semiconductor saturable absorption mirrors (SESAMs) are attractive comb sources since they can be made environmentally stable, but they become unstable when the group velocity dispersion is too low or the gain is too high

Zn-Se-Cd-S interlayer formation at the CdS/Cu2ZnSnSe4 thin-film solar cell interface

June 14, 2017
Author(s)
Marcus Baer, Ingrid Repins, Lothar Weinhardt, Jan Alsmeier, Sujitra Pookpanratana, Monika Blum, Wanli Yang, Clemens Heske, Regan Wilks, Rommel Noufi
The chemical structure of the CdS/Cu2ZnSnSe4 (CZTSe) interface was studied by a combination of different surface-sensitive and near-surface bulk-sensitive electron and x-ray spectroscopies. We find a CdS deposition-induced "redistribution" of elements in

A Low-Power Reversible Alkali Atom Source

June 13, 2017
Author(s)
Songbai Kang, Russell P. Mott, Kevin A. Gilmore, Logan D. Sorenson, Matthew T. Rahker, Elizabeth A. Donley, John E. Kitching, Christopher S. Roper
An electrically-controllable, solid-state, reversible device for sourcing and sinking alkali vapor is presented. When placed inside an alkali vapor cell, both an increase and decrease of the rubidium vapor density by a factor of two are demonstrated

Geometric Progressions on Elliptic Curves

June 13, 2017
Author(s)
Abdoul Aziz Ciss, Dustin Moody
In this paper, we look at long geometric progressions on different model of elliptic curves, namely Weierstrass curves, Edwards and twisted Edwards curves, Huff curves and general quartics curves. By a geometric progression on an elliptic curve, we mean

Implementation and Validation of an LTE D2D Model for ns-3

June 13, 2017
Author(s)
Richard A. Rouil, Fernando J. Cintron, Aziza Ben Mosbah, Samantha M. Gamboa Quintiliani
The ability to perform device-to-device (D2D) communication in Long Term Evolution (LTE)-based cellular networks became possible with the introduction of Proximity Services (ProSe) functionalities in the 3rd Generation Partnership Program (3GPP)

Lattice Parameter Misfit Evolution During Creep of a Co-based Superalloy Single Crystal with Cuboidal and Rafted g' Microstructures

June 13, 2017
Author(s)
James Coakley, Eric Lass, Dong Ma, Matthew Frost, Howard Stone, David N. Seidman, David C. Dunand
A [h00] oriented Co-based superalloy single crystal was crept under tension at 940 ◦C/100 MPa, resulting in a P-type raft morphology with extensive particle coalescence along the [h00] loading direction. However particle coalescence was also observed in
Displaying 13501 - 13525 of 73697
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