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Displaying 12701 - 12725 of 13226

Diffusion-controlled Reference Material for VOC Emissions Testing: Effect of Temperature and Humidity

May 1, 2014
Author(s)
Zhe Liu, Cynthia H. Reed, Steven Cox, John Little
… Tech (VT) and the National Institute of Standards and Technology (NIST) have created a program to develop reference … validating the results measured by different laboratories. In this paper, the impact of temperature and humidity on the … Emissions from the reference material were measured in chambers at 10, 23 and 30 ºC and at different relative …

Verification and Validation of Commonly Used Empirical Correlations for Fire Scenarios

April 28, 2014
Author(s)
Kristopher J. Overholt
… (EPRI), and the National Institute of Standards and Technology (NIST). The results of this verification and validation study are summarized in NUREG-1824 Supplement 1, the Verification and Validation … of empirical correlations that are commonly used in fire scenarios to various experimentally measured …

BIOLOGICAL AND ENVIRONMENTAL MONITORING AND ARCHIVAL OF SEA TURTLE TISSUES (BEMAST): Rationale, Protocols, and Initial Collections of Banked Sea Turtle Tissues

April 25, 2014
Author(s)
Jennifer M. Lynch, Rebecca S. Pugh, Paul R. Becker
… The National Institute of Standards and Technology (NIST) expanded its analytical measurement and … banking capabilities into the U.S. Pacific Islands region in 2010. As part of this Program, NIST established the … and Archival of Sea Turtle Tissues (BEMAST) project in 2011 to archive tissues from sea turtles primarily for …

Measuring Stem Cell Dimensionality in Tissue Scaffolds

April 1, 2014
Author(s)
Carl G. Simon Jr., Sapun Parekh, Christopher K. Tison, Girish Kumar, Tanya M. Farooque, Charles H. Camp
… have evolved for tissue engineering, drug screening and in vitro tissue models. However, it is not clear which … clear way to measure cell niche dimensionality. Advances in 3D niche technology are being hindered by the lack of methods for … Measuring Stem Cell Dimensionality in Tissue Scaffolds …

Comparing Methods for Determining Carbon Dioxide Emissions from Stationary Sources

March 3, 2014
Author(s)
Rodney A. Bryant, Matthew F. Bundy, Ruowen Zong
… measurements. The National Institute of Standards and Technology (NIST) is currently expanding its capabilities to … emission rates were conducted at the fuel supply and in the flue gas. Three methods for determining emissions from … and direct measurements of emissions quantities in the flue gas. A comparison of the results of the three …

Measurement Science R&D Roadmap for Windstorm and Coastal Inundation Impact Reduction

January 30, 2014
Author(s)
William Coulbourne, Jon Galsworthy, Horia Hangan, Christopher Jones, Chris Letchford, Thomas Smith
… 4,045 fatalities and property losses of $250 billion (in 2012 dollars) in the United States during the period of 1996-2012. More … to assist the National Institute of Standards and Technology (NIST) in planning its research and development …

Building one-time memories from isolated qubits

January 14, 2014
Author(s)
Yi-Kai Liu
… current technologies, such as nitrogen vacancy centers in diamond. We construct OTM's that are … This result is somewhat surprising, as OTM's cannot exist in a fully-quantum world or in a fully-classical world; yet they can be built from the … Proceedings of the 5th Conference on Innovations in Theoretical Computer Science (ITCS 2014) …

The Importance of Dosimetry Standardization in Radiobiology

December 30, 2013
Author(s)
Marc F. Desrosiers, Larry A. DeWerd, James Deye, Patricia Lindsay, Mark K. Murphy, Michael G. Mitch, Francesca Macchiarini, Strahinja Stojadinovic, Helen Stone
… repeated and to allow valid comparisons to be made, both in the same laboratory and by other laboratories. Despite … (NIAID), and the National Institute of Standards and Technology (NIST) brought together representatives of the radiobiology and radiation physics communities in a workshop in September, 2011. The workshop participants …

Preliminary Reconnaissance of the May 20, 2013, Newcastle-Moore Tornado in Oklahoma

December 3, 2013
Author(s)
Erica D. Kuligowski, Long Phan, Marc L. Levitan, David P. Jorgensen
… This is a report on the National Institute of Standards and Technology (NIST) reconnaissance to collect information on … of one critical facility and two educational facilities in the May 20, 2013, Newcastle-Moore tornado in Oklahoma. The information collected includes the physical …

Ontology for Big Systems: The Ontology Summit 2012 Communique

October 16, 2013
Author(s)
Ram D. Sriram, Mary C. Brady
… and potential uses of ontology, its methods and paradigms, in big systems and big data: How ontology can be used to … virtual collaborative elaboration of these issues in presentations, panels, and in group email. The culmination … Symposium at the US National Institute of Standards and Technology (NIST), Gaithersburg, MD, USA, 12-13 April 2012. …

Method for Assessing the Potential Effects of Nanoparticles and other Emerging Contaminants on the Catabolic Capabilities of Microbial Communities

September 1, 2013
Author(s)
Kela Weber, Elijah Petersen, Sonja Bissegger, Lars Rehmann, Iris Koch, Jun Zhang, Kenneth Reimer, Robin Slawson, Raymond Legge, Denis O'Carroll
… With an increasing utilization of nanoparticles (NPs) in consumer products, the potential for release to the … imperative that methods to test their potential effects in ecosystems are developed. This study describes an ex-situ … carbon sources and National Institute of Standards and Technology (NIST) 10 nm gold nanoparticles (AuNPs) or an …

Fabricating HD-2(Fe) type Gas Proportional Counters: A Practical Guide to Techniques, Procedures and Operations

June 5, 2013
Author(s)
George A. Klouda, Jeffrey R. Anderson, John E. Fuller III
… Facility for Low-Level Counting (llc), and the Fabrication Technology Division, Glassblowing and Optical Shops. This type of GPC has been used in our laboratory to detect low levels of (beta) … small atmospheric gas and aerosol samples (Currie, 2008). In the initial phase of the project, reverse engineering was …

Influence of Organic Liquids on the Nanostructure of Precipitated Cellulose

February 15, 2013
Author(s)
Brian J. Watson, Boualem Hammouda, Robert M. Briber, Steven W. Hutcheson
… cellulose crystallinity or only cause a transient decease in cellulose crystallinity that diminishes upon washing in water. Using the Flory-Huggins solvent-polymer interaction … with the candidate solvents to remove the phosphate. In contrast to water which precipitates cellulose, cellulose …

Determination of fortified and endogenous folates in food-based Standard Reference Materials by liquid chromatography-tandem mass spectrometry

January 26, 2013
Author(s)
Johanna Camara, Mark S. Lowenthal, Karen W. Phinney
… The National Institute of Standards and Technology (NIST) is developing a wide variety of Standard … to support measurements of vitamins and other nutrients in foods. Previously, NIST has provided SRMs with values … folic acid (pteroylglutamic acid), which is fortified in several foods due to its role in prevention of neural tube …

Characterization of Perchlorate in a New Frozen Human Urine Standard Reference Material

October 1, 2012
Author(s)
Lee L. Yu, William C. Davis, Rabia Oflaz, Gregory C. Turk, Jeff M. Jarrett, Liza Valentin, Benjamin C. Blount, Dennis D. Leber, Eric L. Kilpatrick
… exposure to perchlorate requires measurement of the anion in urine. Although the measurement technique for perchlorate in urine was developed in 2005, the calibration and quality … thyroid health, the National Institute of Standards and Technology (NIST) in collaboration with the Centers for …

Thermal Decomposition of 1-Pentyl Radicals at High Pressures and Temperatures

September 27, 2012
Author(s)
Andrea Comandini, Iftikhar A. Awan, Jeffrey A. Manion
… studies at the National Institute of Standards and Technology (NIST) and the University of Illinois at Chicago … of dilute concentrations (50 μL/L) of 1-iodopentane in an argon bath gas and the stable olefin products monitored … flame-ionization and mass-spectrometric detection. In accordance with a recent study carried out at NIST, ethene …

A 10 V programmable Josephson voltage standard and its applications for voltage metrology

September 3, 2012
Author(s)
Yi-hua D. Tang, Vijay Ojha, Stephan Schlamminger, Alain Rufenacht, Charles J. Burroughs, Paul D. Dresselhaus, Samuel P. Benz
… programmable Josephson voltage standard was first proposed in 1997. Since then a significant amount of research and … programmable Josephson junction array and its deployment in a voltage standard system. This paper reports the recent … (PJVS) system at the National Institute of Standards and Technology (NIST) and its voltage metrology applications. The …

Strategic Roadmap for Fire Risk Reduction in Buildings and Communities

April 18, 2012
Author(s)
Anthony P. Hamins, Jason D. Averill, Richard G. Gann, Nelson P. Bryner, Rick D. Davis, David T. Butry, Alexander Maranghides, Jiann C. Yang, Daniel M. Madrzykowski, Matthew F. Bundy, Samuel L. Manzello, Jeffrey W. Gilman, Francine K. Amon, William E. Mell
… available resources to bear on the U.S. fire burden in a focused and creative manner for enhanced effectiveness, … a basis for NIST strategic planning, and identify gaps in knowledge and measurement science that hinder the … life safety, technical innovation, and economic prosperity in the United States. To realize this vision, the near-term …

Transitory Temperatures of Organic-Film Coated Specimens under Outdoor Exposure

March 2, 2012
Author(s)
William C. Thomas, Christopher C. White, Walter E. Byrd
… materials. The National Institute of Standards and Technology provided specimen temperature and simultaneous … inputs for determining heat exchange at coating surfaces. In addition to convection and solar irradiation, the model … solution for predicting long-term transient temperatures in thin-coated specimens. …

A High-Resolution Atlas of Uranium-Neon in the H Band

February 3, 2012
Author(s)
Scott A. Diddams, Stephen L. Redman, Gabriel G. Ycas, Ryan Terrien, Suvrath Mahadevan, Lawrence W. Ramsey, Chad F. Bender, Steve Osterman, Franklyn J. Quinlan, James E. Lawler, Gillian Nave
… The rapid advance in near-infrared (NIR) detector technology in the past decade has lead to a number of high-resolution … A High-Resolution Atlas of Uranium-Neon in the H Band …

Liquid Biofuels: Fluid Properties to Optimize Feedstock Selection, Processing, Refining/Blending, Storage/Trasnportation, and Combustion

January 23, 2012
Author(s)
George G. Anitescu, Thomas J. Bruno
… The focus is to produce fuels with desired properties in both technically and economically attractive ways to … are required to efficiently design the processes involved in their production, distribution, and utilization. On the … and validate physicochemical models, the tools employed in process design, product development, or academic research. …

FIRE PATTERN REPEATABILITY: A STUDY IN UNCERTAINTY

January 3, 2012
Author(s)
Daniel M. Madrzykowski, Charles Fleischmann
… The National Institute of Standards and Technology (NIST) is conducting a multi-year study, with the … range of source fires. Although the experiments are simple in design the amount of uncertainty in each component of the experiment, especially in the … FIRE PATTERN REPEATABILITY: A STUDY IN UNCERTAINTY …

Data Dependency on Measurement Uncertainties in Speaker Recognition Evaluation

November 3, 2011
Author(s)
Jin Chu Wu, Alvin F. Martin, Craig S. Greenberg, Raghu N. Kacker
… The National Institute of Standards and Technology (NIST) has been conducting an ongoing series of … and of type II error. The sampling variability can result in measurement uncertainties. Thus, the uncertainties of the … detection cost functions must be taken into consideration in SRE. In our prior study, the data independence was assumed …
Displaying 12701 - 12725 of 13226
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