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Displaying 776 - 800 of 1513

Evaluating Smoldering Behavior of Fire-Blocking Barrier Fabrics

January 29, 2015
Author(s)
Shonali Nazare, William M. Pitts, Szabolcs Matko, Rick D. Davis
This study reports on the smoldering propensity of commercially available barrier fabrics (BFs) in a small-scale upholstered seating mock-up configuration. Most commercially available BFs are smolder resistant when tested alone over a standard flexible

CHAPTER 4: Density Standards and Traceability

December 17, 2014
Author(s)
Mark O. McLinden
Most instruments for measuring fluid density are not absolute instruments—they must be calibrated with one or more fluids of known density. The selection of appropriate calibration fluids is vital to achieving low uncertainty in a measurement. Also

Principles of Optical Radiometry and Measurement Uncertainty

November 27, 2014
Author(s)
Bettye C. Johnson, Howard W. Yoon, Joseph P. Rice, Albert C. Parr
The fundamental concepts of optical radiometry are developed from basic principles, with detailed explanations for radiance, irradiance, and reflectance. Examples of radiometric standards, in particular radiometers and reference sources are given, and the

NIST Micronutrients Measurement Quality Assurance Program Summer 2013 Comparability Studies: Results for Round Robin LXXIV Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 39 Ascorbic Acid in Human Serum

October 30, 2014
Author(s)
Jeanice M. Brown Thomas, David L. Duewer
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes

NIST Micronutrients Measurement Quality Assurance Program Winter 2013 Comparability Studies: Results for Round Robin LXXIII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 38 Ascorbic Acid in Human Serum

October 30, 2014
Author(s)
Jeanice M. Brown Thomas, David L. Duewer
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes

NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 3.0

October 1, 2014
Author(s)
Chris Greer, David A. Wollman, Dean Prochaska, Paul A. Boynton, Jeffrey A. Mazer, Cuong Nguyen, Gerald FitzPatrick, Thomas L. Nelson, Galen H. Koepke, Allen R. Hefner Jr., Victoria Yan Pillitteri, Tanya L. Brewer, Nada T. Golmie, David H. Su, Allan C. Eustis, David Holmberg, Steven T. Bushby
Section 1305 of the Energy Independence and Security Act (EISA) of 2007 (Pub. L. 110-140) directs NIST ‘‘to coordinate the development of a framework that includes protocols and model standards for information management to achieve interoperability of

Optimization of Focused Ion Beam-Tomography for Superconducting Electronics

August 27, 2014
Author(s)
Aric W. Sanders, Anna E. Fox, Paul D. Dresselhaus, Alexandra Curtin
Superconducting electronics play an important role in quantum computation, ultra-low power electronics, voltage standards and magnetic sensors. Many of these applications rely on the microfabrication of superconducting circuits with multiple wiring layers

A 100 Tohm Guarded Hamon Transfer Standard

August 24, 2014
Author(s)
Dean G. Jarrett, Edward O'Brien, Marlin E. Kraft
Guarded Hamon transfer standards are used at NIST for scaling to high resistance levels. An improved design for a guarded Hamon transfer standard in the range from 1 TΩ to 100 TΩ is described. Measurements taken to select the primary and guard resistor

Accurate High-Ohmic Resistance Measurement Techniques up to 1 Pohm

August 24, 2014
Author(s)
Dean G. Jarrett, Gert Rietveld, Beat Jeckelmann
An overview is presented on precision high-ohmic resistance measurements for values of 100 Mohmand above. The two main measurement techniques in this resistance range are discussed, the current integration technique and the adapted Wheatstone bridge. The
Displaying 776 - 800 of 1513
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