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Search Publications

NIST Authors in Bold

Displaying 4076 - 4100 of 4199

Improving Measurement for Smokestack Emissions - Workshop Summary

September 21, 2018
Author(s)
Rodney A. Bryant, Aaron N. Johnson, John D. Wright, Tamae M. Wong, James R. Whetstone, Michael R. Moldover, Iosif I. Shinder, Scott Swiggard, Chris Gunning, David Elam, Tom Martz, Eric Harman, David Nuckols, Liang Zhang, Woong Kang, Salvator Vigil
The complex flow conditions inherent in power plant smokestacks make accurate flow measurements challenging, which in turn limits the accuracy of hazardous emissions measurements. While stack composition measurements are assessed daily via comparison to a

Lessons Learned from Spray Polyurethane Foam Emission Testing using Micro-chambers

October 16, 2016
Author(s)
Dustin Poppendieck, Mengyan Gong, Lauren E. Lawson
Both governmental agencies and the SPF industry consortium have sought more information on potential chemical emissions from SPF to better understand any potential occupant exposures and health impacts. This research was designed to contribute to the

Emerging Metrology for High Throughput Nanomaterial Genotoxicology

August 26, 2016
Author(s)
Bryant C. Nelson, Christa W. Wright, Yuko Ibuki, Maria Moreno-Villanueva, Hanna L. Karlsson, Giel Hendriks, Christopher M. Sims, Neenu Singh, Shareen H. Doak
… The rapid development of the engineered nanomaterial (ENM) manufacturing industry has accelerated the incorporation of …

Photochemical transformations of thiolated polyethylene glycol coatings on gold nanoparticles

August 16, 2016
Author(s)
Stacey M. Louie, Justin M. Gorham, Eric A. McGivney, Jingyu Liu, Kelvin B. Gregory, Vincent A. Hackley
Photochemical reactions can result in significant transformations of manufactured nanomaterials in sunlit environments. While transformations of inorganic nanoparticles (NPs) have been investigated extensively, much less attention has been focused on the

Variability and bias assessment in breast ADC measurement across multiple systems

February 29, 2016
Author(s)
Kathryn E. Keenan, Sheye O. Aliu, Lisa J. Wilmes, David C. Newitt, Ella F. Jones, Wen Li, Michael A. Boss, Karl F. Stupic, Stephen E. Russek, Nola M. Hylton
Purpose: To assess the ability of a recent, anatomically designed breast phantom incorporating T 1 and diffusion elements to serve as a quality control device for quantitative comparison of apparent diffusion coefficient (ADC) measurements calculated from

Glycan Analysis of NIST mAb Reference Material

October 15, 2015
Author(s)
John E. Schiel, Catherine A. Mouchahoir
… required for analysis. At various stages of developing and manufacturing a mAb several levels of glycan analysis are …

Standardizing 25-Hydroxyvitamin D values from the Canadian Health Measures Survey

September 30, 2015
Author(s)
Kurtis Sarafin, Ramon Durazo-Arvizu, Lu Tian, Karen W. Phinney, Susan Tai, Johanna Camara, Hubert W. Vesper, Joyce M. Merkel, Evan Green, Christopher T. Sempos, Stephen P. Brooks
Background: The Canadian Health Measures survey (CHMS) is an ongoing cross sectional national survey that includes a measure of 25-hydroxyvitamin D (25(OH)D) by Diasorin LIAISON immunoassay. The survey repeats approximately every two years with a new

Measuring collected gas with microwave and acoustic resonances

April 23, 2015
Author(s)
Keith A. Gillis, James W. Schmidt, Michael R. Moldover, James B. Mehl
With calibrations of large flow meters in mind, we established the feasibility of determining the mass M of argon gas contained within a 0.3 m 3 commercially manufactured pressure vessel ("tank") with a relative standard uncertainty of u r(M) = 0.0016 at 0

D90: The strongest contributor to setting time in MTA and Portland Cement

April 15, 2015
Author(s)
William Ha, Dale P. Bentz, Wyatt Kahler, Laurence Walsh
Introduction: The setting times of commercial mineral trioxide aggregate (MTA) and Portland cements vary. It was hypothesized that much of this variation was due to differences in particle size distribution. Methods: Two gram samples from 11 MTA-type

Functionalization-Dependent Induction of Cellular Survival Pathways by CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial Cells

September 5, 2013
Author(s)
Amber Nagy, Jennifer A. Hollingsworth, Bin Hu, Andrea Steinbruck, Peter C. Stark, Cristina Rios Valdez, Momchilo Vuyisich, Michael H. Stewart, Donald H. Atha, Bryant C. Nelson, Rashi Iyer
Quantum dots (QDs) are semiconductor nanocrystals exhibiting unique optical properties which can be exploited for many practical applications ranging from photovoltaics to biomedical imaging and drug delivery. They are increasingly manufactured in large

Towards Timely Intelligence in the Power Grid

February 25, 2013
Author(s)
YaShian Li-Baboud, Julien M. Amelot, Dhananjay Anand, Gerard N. Stenbakken, Thomas L. Nelson, James Moyne
One of the key lessons learned from the 2003 Northeast Blackout in the United States was the need for improved timing. The problem began as an isolated issue, but cascaded through the Northeastern grid. Timely situational awareness would likely have

Beyond the Business Cycle: The Need for a Technology-Based Growth Strategy

December 19, 2012
Author(s)
Gregory C. Tassey
Facing the worst economic slowdown since the Great Depression, efforts to reestablish acceptable growth rates for the U.S. economy are relying almost entirely on short-term “stabilization” policies. However, the massive monetary and fiscal “stimulus”

Sensing Trace Amounts of Nitro-Aromatic Explosives using Nanowire-Nanocluster Hybrids

August 1, 2012
Author(s)
Geetha G. Aluri, Abhishek Motayed, Albert Davydov, Vladimir P. Oleshko, Kristine A. Bertness, Norman A. Sanford
The threat of terrorism and the need for homeland security calls for advanced technologies to detect the concealed explosives safely and efficiently. We demonstrated highly sensitive and selective detection of traces of nitro-aromatic explosive compounds
Displaying 4076 - 4100 of 4199
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