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NIST Authors in Bold

Displaying 18126 - 18150 of 73697

A Data-Driven Predictor of the Discharge Coefficient of Orifice Plates

April 1, 2015
Author(s)
James R. Whetstone, Antonio M. Possolo
We have developed a new functional relationship to predict the value of the discharge coefficient of an orifice plate used to measure volumetric flow rate in cylindrical pipes, as a function of the beta ratio of the orifice and pipe combination, and of the

An Areal Isotropic Spline Filter for Surface Metrology

April 1, 2015
Author(s)
Hao H. Zhang, D Ott, Wei Chu
This paper deals with the application of the spline filter as an areal filter for surface metrology. A profile (2D) filter is often applied in orthogonal directions to yield an areal filter for a three-dimensional (3D) measurement. Unlike the Gaussian

Biological Evidence Preservation: Considerations for Policy Makers:

April 1, 2015
Author(s)
Shannan Williams, Melissa K. Taylor, Susan M. Ballou, Mark D. Stolorow, Margaret C. Kline, Phylis S. Bamberger, Larry Brown, Rebecca Brown, Yvette Burney, Dennis Davenport, Lindsay DePalma, Ted Hunt, Cynthia E. Jones, Ralph Keaton, William Kiley, Joseph Latta, Karen Thiessen, Gerry LaPorte, Linda E. Ledray, Randy Nagy, Brian Ostrom, Linda Schwind, Stephanie Stoiloff

Calibration Considerations for Mission Success

April 1, 2015
Author(s)
Raghu N. Kacker
As more and more data from different sensors, either on the same or from different platforms, are used together for studies of changes in the earth’s atmosphere and surface properties, Department of Defense applications, or for the many other applications

Cavity ring-down spectrometer for high-fidelity molecular absorption measurements

April 1, 2015
Author(s)
Vincent T. Sironneau, Hong Lin, Zachary Reed, Joseph T. Hodges
We present a cavity ring-down spectrometer which was developed for near-infrared measurements of laser absorption by atmospheric greenhouse gases. This system has several important attributes that make it possible to conduct broad spectral surveys and to

Compact Nano-Mechanical Plasmonic Phase Modulators

April 1, 2015
Author(s)
Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg, Vladimir Aksyuk
The miniaturization of photonic devices is fundamentally limited by the index of refraction of the constituent materials if light is confined in dielectric nanostructures. By coupling electromagnetic fields to metal's free electrons plasmonic devices

Development of Urine Standard Reference Materials for Metabolites of Organic Chemicals Including Polycyclic Aromatic Hydrocarbons, Phthalates, Phenols, Parabens, and Volatile Organic Compounds

April 1, 2015
Author(s)
Michele M. Schantz, Bruce A. Benner Jr., Nathanael A. Heckert, Lane C. Sander, Katherine E. Sharpless, Stacy S. Schuur, Stephen A. Wise
Two new Standard Reference Materials (SRMs), SRM 3672 Organic Contaminants in Smokers’ Urine (Frozen) and SRM 3673 Organic Contaminants in Non-Smokers’ Urine (Frozen), have been developed in support of studies for assessment of human exposure to select

Methodological Challenges in Including Green Tea Dietary Supplements to Analytically Verified Databases.

April 1, 2015
Author(s)
Catherine Rimmer, Leila Saldanha, Johanna Dwyer, Karen Andrews, Regan Bailey, Joseph Betz, Vicki Burt, Rebecca Costello, Nancy Emenaker, Jaime Gahche, J. Harnly, Constance Hardy, Pamela R. Pehrsson
Dietary supplement databases are needed to calculate total dietary intakes from foods and supplements. Analytically verified databases are necessary for commonly consumed products as estimates of intakes are used in guiding public policy decisions. The

NGD Cold Neutron Prompt Gamma-ray Activation Analysis Spectrometer at NIST

April 1, 2015
Author(s)
Rick L. Paul, Dagistan NMN Sahin, Jeremy C. Cook, Christoph W. Brocker, Richard M. Lindstrom, Donna J. O'Kelly
A new instrument for cold neutron prompt gamma-ray activation analysis (CNPGAA) has been designed and constructed as part of the recent expansion of the cold neutron guide hall at the NIST Center for Neutron Research (NCNR). Located on neutron guide NGD

Perfluorinated Alkyl Acids in Abiotic Standard Reference Materials

April 1, 2015
Author(s)
Jessica L. Reiner, Jennifer M. Lynch, Andrea Blaine, Christopher Higgins, Carin Huset, Thomas Jenkins, Christiaan Kwadijk, Cleston Lange, Derek Muir, William K. Reagen, Courtney Rich, Jeff Small, Mark J. Strynar, John Washington, Hoon Yoo
The National Institute of Standards and Technology (NIST) has a wide range of Standard Reference Materials (SRMs) which have values assigned for legacy organic pollutants and toxic elements. Existing SRMs serve as homogenous materials that can be used for

Sub-visible (2 mm to 100 mm) particle analysis during biotherapeutic drug product development: Part 1, considerations and strategy

April 1, 2015
Author(s)
Dean C. Ripple, Linda Narhi, Natliya Afonina, Satish Singh, Andrea Herre, Patrick Garidel, Atanas Koulov, Vincent Corvari, Thomas Spitznagel, Paolo Mangiagalli, Irene Cecchini, Klaus Wuchner, Tony Lubiniecki, Hanns-Christian Mahler, Roland Schmidt, Alla Polozova, Patricia Cash, Andrew Weiskopf, Douglas Nesta, Mara Rossi, Robert Simler
Measurement and characterization of particles in the 1 µm to 100 µm range (sub-visible particles), including protein aggregates, is an important part of every stage of protein therapeutic development. The tools used and the ways in which the information
Displaying 18126 - 18150 of 73697
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