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Displaying 11876 - 11900 of 13225

The Decline in Reported Smoking-Caused Wildfires

June 21, 2014
Author(s)
David T. Butry, Jeffrey P. Prestemon, Douglas S. Thomas
… wildfires has been falling nationwide. On national forests in 2011, smoking-caused wildfires represented only 10 % of … starts—by 20 %—is a likely unintended consequence of a technology aimed at reducing fire fatalities in residences. We also find that the improvements in wildfire …

Measuring the Neutron Lifetime Using Magnetically Trapped Neutrons

May 1, 2014
Author(s)
Hans P. Mumm, Alan Keith Thompson, Paul R. Huffman, Christopher O'Shaughnessy, Kevin J. Coakley, Robert Golub, John M. Doyle, Steve K. Lamoreaux, P.-N. Seo, C E. Mattoni, S N. Dzhosyuk, L Yang, Grace L. Yang, Karl W. Schelhammer, Christopher M. Swank
… neutron beta-decay lifetime plays an important role, both in understanding weak interactions within the framework of the Standard Model, and in theoretical predictions of the primordial abundance of 4He … completion at the National Institute of Standards and Technology Center for Neutron Research (NCNR). In our …

Confinement-Driven Increase in Ionomer Thin-Film Modulus

April 28, 2014
Author(s)
Kirt A. Page, Ahmet Kusoglu, Christopher M. Stafford, Sangcheol Kim, Regis J. Kline, Adam Weber
… For optimizing the complex, heterogeneous structures in which they occur, there is a need to elucidate the … replete with examples thereof. However, there is a deficit in the understanding of ionomers when confined to the … is confined to thin films, there is a drastic increase in the modulus over the bulk value, and we demonstrate that …

Evaluating Building Ventilation Strategies Using Newly-Developed TRNSYS/CONTAM Simulation Capabilities

April 3, 2014
Author(s)
William S. Dols, Steven J. Emmerich, Brian J. Polidoro
… Building energy analysis tools are available in many forms that provide the ability to address a broad spectrum of energy-related issues in various combinations. Often these tools operate in … interdependencies, the National Institute of Standards and Technology (NIST) has developed an updated version of the …

Forward Issue on Electrochemical Processing of Interconnects

December 10, 2013
Author(s)
Thomas P. Moffat, Daniel Josell
… through the 1980’s led to the need for building in 3-D that began to take hold in the 1990’s and then sharply accelerated with the … (electromigration) concerns.^(3) Copper interconnect technology on transistor laden 300 mm diameter Si wafers, …

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1996 Comparability Studies: Results for Round Robin XXXVI, XXXVII, and XXXVIII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 9 Ascorbic Acid in Human

August 7, 2013
Author(s)
David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, Sam A. Margolis
… The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality … measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes the design … 1) Round Robin XXXVI Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XXXVII Fat-Soluble Vitamins …

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1998 Comparability Studies: Results for Round Robin XLII, XLIII, and XLIV Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 11 Ascorbic Acid in Human Seru

August 7, 2013
Author(s)
David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, Sam A. Margolis
… The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality … measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes the design … 1) Round Robin XLII Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XLIII Fat-Soluble Vitamins and …

Properties of magnetic barrier structures for superconducting-magnetic hybrid Josephson junctions

July 7, 2013
Author(s)
Burm Baek, Samuel P. Benz, William H. Rippard, Stephen E. Russek, Paul D. Dresselhaus, Horst Rogalla, Matthew R. Pufall
… as well as magnetic switching behavior. The differences in switching field of each layer were determined by … ) by high-throughput, conventional fabrication techniques. In PSV-barrier junctions, the critical current is strongly modulated by the magnetic state in the barrier, including magnetic hysteresis. In junctions …

Properties of Selected Materials at Cryogenic Temperatures

June 17, 2013
Author(s)
Peter E. Bradley, Ray Radebaugh
… can be much different than the room-temperature values. In addition, some properties can be strong functions of … were made at the National Institute of Standards and Technology (NIST) and other laboratories about 50 years ago. Some of the results were published in reports that are now out of print, which makes the results …

Breakfast Cereal Sampling Study for Nutritional Elements

February 5, 2013
Author(s)
Laura J. Wood, Katrice A. Lippa, Melissa M. Phillips, Catherine A. Rimmer, Nathanael A. Heckert, Stefan D. Leigh, Amanda J. Moors, Rebecca S. Pugh
… The National Institute of Standards and Technology (NIST) has established a Dietary Supplement Laboratory Quality Assurance Program (DSQAP) in collaboration with the National Institutes of Health … were asked to determine levels of Ca, Fe, and Zn in six breakfast cereal samples. Cereal samples consisted of …

Extreme Ultraviolet Spectra of Highly Charged Xenon Observed with an Electron Beam Ion Trap

November 23, 2012
Author(s)
Dmitry D. Osin, Joseph Reader, John D. Gillaspy, Yuri Ralchenko
… ion trap (EBIT) at the National Institute of Standards and Technology and recorded with a flat-field grazing-incidence spectrometer. The spectra were measured in the wavelength range of 4.5 nm to19.5 nm as the beam … adopted wavelengths used as calibration standards is given in an appendix. …

Challenging Security Requirements for US Government Cloud Computing Adoption

November 19, 2012
Author(s)
Michaela Iorga
… was tasked with a key role and specific activities in support of that effort, including the delivery of the NIST Cloud Computing Technology Roadmap and the publication of other Special … definitions, and security aspects of cloud computing. In order to achieve adoption of cloud computing for the …

Development of a 4K Regenerator and Pulse Tube Test Facility

October 10, 2012
Author(s)
Michael A. Lewis, Peter E. Bradley, Ryan P. Taylor, Ray Radebaugh
… Recent advances in superconducting electronic systems are requiring larger … the pulse tube cryocooler system is a well-documented technology at moderate cryogenic temperatures (40-80 K), its … to superconducting electronic systems. To gain confidence in the modeling predictions, experimental validation is …

Program Plan for the Development of Seismic Design Guidelines for Port Container, Wharf, and Cargo Systems

September 14, 2012
Author(s)
Richard Wittkop, Omar Jarradat, Gayle Johnson, Geoffrey Martin, Glenn Rix, Ian Robertson
… for Port Systems," conducted by the Georgia Institute of Technology. The Grand Challenge project was motivated by the … that many large U.S. container ports are located in areas of significant seismic hazard, and that seismic risk … ports to the nation's economy. That effort resulted in a systems-based approach for seismic risk analysis and …

Measurements of Infrared Spectral Directional Emittance at NIST - A Status Update

September 12, 2012
Author(s)
Boris Wilthan, Leonard Hanssen, Sergey Mekhontsev
… Division at the National Institute of Standards and Technology (NIST) has developed extensive capabilities for … up to 200 °C. Subsequently, NIST piloted and participated in an international intercomparison of infrared spectral … Temperature: Its Measurement and Control in Science and Industry, Vol. 8 …

Thermal Behavior of Structural Fire Fighting Protective Ensemble Samples Modified with Phase Change Material and Exposed in Full-Scale Room Fires.

March 20, 2012
Author(s)
Adam M. Barowy, Daniel M. Madrzykowski
… to change phase. The National Institute of Standards and Technology (NIST) conducted full-scale compartment fire … the thermal behavior of FFPE samples with PCM added, in a realistic fire fighting environment. Two experiments were conducted, each in a single furnished compartment with one door and one …

Long-term Stability of the NIST Conical Reference Transducer

December 22, 2011
Author(s)
Steven E. Fick, Thomas M. Proctor
… The National Institute of Standards and Technology (NIST) Conical Reference Transducer (CRT) is … as a function of frequency, the transducer sensitivity in volts per micrometer of normal displacement on the test … for long term research, and were stored undisturbed in a laboratory with well controlled temperature and …

Superconductivity and the SI (Metric) Systems Based on Fundamental Constants

December 1, 2011
Author(s)
Edwin R. Williams
… h are bringing the time when the scale for all units in the International System of Units (SI) can be defined … internationally at the signing of the Treaty of the Meter in 1875 and has served science, engineering and commerce very … made of platinum-iridium that, since 1889, has been kept in a vault at the Bureau International de Poids et Mesures, …

Performance of New and Aged Residential Fire Sprinklers

August 31, 2011
Author(s)
Anthony D. Putorti Jr., William F. Guthrie, Jason D. Averill, Richard G. Gann
… of this program, the National Institute of Standards and Technology (NIST) generated data to help determine whether there has been degradation in the activation performance of automatic residential fire … activation time. NIST tested three sets of sprinklers in the sensitivity test oven (plunge test apparatus), …

Characterization of the Range Performance of a 3D Imaging System (NIST TN 1695)

May 9, 2011
Author(s)
Geraldine S. Cheok, Kamel S. Saidi, Marek Franaszek, James J. Filliben, Nicholas Scott
… applications for these instruments have grown tremendously in the last decade. The expanded use of 3D imaging … limits for the data and their end products. Industry, and in particular the construction sector, needs open, … support this need, the National Institute of Standards and Technology (NIST) is developing the measurement science …

Improving the performance of the NIST five axis goniospectrometer for measurements of bidirectional reflectance distribution function

April 21, 2011
Author(s)
Vyacheslav B. Podobedov, Maria E. Nadal, Carl C. Miller
… at the National Institute of Standards and Technology (NIST) measures the spectral reflectance of … This new configuration offers a significant reduction in the measurement time allowing for the complete … extend the effective dynamic range of measured intensities in the multichannel detection mode to the values of 106 - 107 …

Contributions of the EMERALD project to assessing and improving microarray data quality

January 1, 2011
Author(s)
Vidar Beisvag, Audrey Kauffmann, James Malone, Carole Foy, Marc L. Salit, Schimmel Heinz, Erik Bongcam-Rudloff, Ulf Landegren, Helen Parkinson, Wolfgang Huber, Alvis Brazma, Arne K. Sandvik, Martin Kuiper
… helped to increase the value of microarray data deposited in public databases like ArrayExpress and GEO, limited means … metrics tools are disseminated through publications and in particular through the software package … ontology to describe gene expression analysis software. In addition, the consortium advocated the development and use …
Displaying 11876 - 11900 of 13225
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