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Search Publications

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Displaying 9501 - 9525 of 73697

PHOTONIC THERMOMETRY: UPENDING 100 YEAR-OLD PARADIGM IN TEMPERATURE METROLOGY

August 1, 2019
Author(s)
Zeeshan Ahmed, Nikolai N. Klimov, Thomas P. Purdy, Tobias K. Herman, Kevin O. Douglass, Ryan P. Fitzgerald
For the past century, industrial temperature measurements have relied on resistance measurement of a thin metal wire or thin metal film whose resistance varies with temperature. Today’s resistance thermometers can routinely measure temperatures with

Reconciling LED and Monochromator-based Measurements of Spectral Responsivity

August 1, 2019
Author(s)
John F. Roller, Behrang H. Hamadani
The irradiance spectral responsivity is an important measurement characteristic for a reference solar cell and has served as a primary reference cell calibration method for a growing number of national labs in recent years. This paper discusses the process

The hunt for refrigerant blends to replace R-134a

August 1, 2019
Author(s)
Ian H. Bell, Piotr A. Domanski, Gregory T. Linteris, Mark O. McLinden
We investigated refrigerant blends as possible low GWP (global warming potential) alternatives for R-134a in an air-conditioning application. We carried out an extensive screening of the binary, ternary, and four-component blends possible among a list of

The Reproducibility of a Proposed Standard Fatigue Test for Cardiac Device Leads

August 1, 2019
Author(s)
Timothy P. Quinn, Jolene D. Splett, Joseph D. McColskey, James Dawson, David Smith, Adam Himes, Daniel Cooke
The Transvenous Cardiac Leads Working Group of the Cardiac Rhythm Management Devices Committee of The Association for the Advancement of Medical Instrumentation (AAMI CRMD WG1) is developing a fatigue performance standard for cardiac device leads. The

Thermophysical properties of polyol ester lubricants:

August 1, 2019
Author(s)
Thomas J Bruno, Tara J Fortin, Marcia L Huber, Arno Laesecke, Eric W Lemmon, Elisabeth Mansfield, Mark O McLinden, Stephanie L Outcalt, Richard A Perkins, Kimberly N Urness, Jason A Widegren

Tunable Multiferroic Order Parameters in Sr 1-x Ba x Mn 1-y Ti y O 3

August 1, 2019
Author(s)
Kamal Chapagain, Dennis E. Brown, Stanislaw Kolesnik, Saul Lapidus, Bianca Haberl, Jamie Molaison, Chuanlong Lin, Curtis Kenney-Benson, Changyong Park, Jaroslaw Pietosa, Ewa Markiewicz, Bartlomiej Andrzejewski, Jeffrey W. Lynn, Stephan Rosenkranz, Bogdan Dabrowski, Omar Chmaissem
Responding to the rapidly increasing demand for efficient energy usage and increased speed and functionality of electronic and spintronic devices, multiferroic oxides have recently emerged as key materials capable of tackling this multifacted challenge. In

1 GHz Waveform Synthesis with Josephson Arrays

July 31, 2019
Author(s)
Christine A. Donnelly, Justus A. Brevik, Nathan E. Flowers-Jacobs, Peter F. Hopkins, Paul D. Dresselhaus, Samuel P. Benz
For the first time, we synthesize single- and multiple-tone waveforms at gigahertz frequencies from arrays of Josephson junctions and demonstrate quantum-locked operation over a range of experimental input parameters. We first use a lumped-element circuit

1 GHz Waveform Synthesis With Josephson Junction Arrays

July 31, 2019
Author(s)
Christine A. Donnelly, Nathan E. Flowers-Jacobs, Justus A. Brevik, Anna E. Fox, Paul D. Dresselhaus, Peter F. Hopkins, Samuel P. Benz
We synthesize single- and multiple-tone waveforms at gigahertz frequencies from arrays of Josephson junctions and demonstrate their quantum-locked operation over a range of experimental input parameters. We first use a lumped-element circuit to synthesize

Electric Field Effect on Short-Range Polar Order in a Relaxor Ferroelectric System

July 30, 2019
Author(s)
Zhijun Xu, Fei Li, Shujun Zhang, Christopher Stock, Jun Luo, Peter M. Gehring, Guangyong Xu
Short-range polar orders in the relaxor ferroelectric material PbMg 1/2Nb 2/3O 3-28%PbTiO 3 (PMN-28PT) have been studied using neutron diffuse scattering. An external electric field along [110] direction can affect the diffuse scattering in the low

Liquid chromatography tandem mass spectrometry for the quantitation of steroid hormone profiles in blubber from stranded humpback whales (Megaptera novaeangliae)

July 30, 2019
Author(s)
Greta Dalle Luche, Susan Bengston Nash, John Kucklick, Fletcher M. Mingramm, Ashley Russell
Marine mammal blubber is known to have quantifiable concentrations of steroid hormones and is increasingly chosen as a matrix for the detection of these reproductive and stress biomarkers. Steroid hormones act through complex cascades, often in concert

Multifactor Authentication for E-Commerce

July 30, 2019
Author(s)
William D. Newhouse
As retailers in the United States have adopted chip-and-signature and chip-and-PIN (personal identification number) point-of-sale (POS) security measures, there have been increases in fraudulent online card-not-present (CNP) electronic commerce (e-commerce

Towards Sustainable Environmental Quality: Priority Research Questions for North America

July 30, 2019
Author(s)
Anne Fairbrother, Derek Muir, Keith Solomon, Gerald Ankley, Murray Rudd, Alistair Boxall, William Adams, Jennifer Apell, Bonnie Blalock, Sarah Bowman, Linda Campbell, George Cobb, Kristin Connors, David Dreier, Marlene Evans, Carol Henry, Robert Hoke, Magali Houde, Stephen Klaine, Rebecca Klaper, Sigrun Kullik, Roman Lanno, Charles Meyer, Elias Oziolor, Mary Ann Ottinger, Elijah Petersen, Helen Poynton, Pamela Rice, Gabriela Rodriguez-Fuentes, Alan Samel, Joseph Shaw, Jeffrey Steevens, Tim Verslycke, Scott Weir, Peter Wilson, Bryan Brooks
Anticipating, identifying and prioritizing strategic needs represent essential activities by research organizations. When these pursuits engage globally important environment and health goals, including the United Nations Sustainable Development Goals
Displaying 9501 - 9525 of 73697
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