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Displaying 22251 - 22275 of 74196

The Detection of Interstellar Ethanimine (CH3CHNH) from Observations taken during the GBT PRIMOS Survey

February 13, 2013
Author(s)
Francis J. Lovas, Ryan A. Loomis, Daniel P. Zaleski, Amanda L. Steber, Justin L. Neill, Matthew T. Muckle, Brent J. Harris, Jan M. Hollis, Phillip R. Jewell, Valerio Lattanzi, Oscar Martines, Michael C. McCarthy, Anthony J. Remijan, Brooks H. Pate
As the availab¬¬ility of publicly accessible spectral line surveys from radio astronomy increases, new approaches to the identification of molecules in the interstellar medium are possible. We have performed reaction product screening measurements using

Five Examples of Assessment and Expression of Measurement Uncertainty

February 12, 2013
Author(s)
Antonio M. Possolo
It is a long accepted tenet of scientific practice that every measurement result ought to include a statement of uncertainty associated with the measured value, and that such uncertainty should be propagated to derivative products. It is also widely

General Guidance on Emergency Communication Strategies for Buildings

February 12, 2013
Author(s)
Erica D. Kuligowski
When a building emergency occurs, it is not always sufficient to simply initiate alarm bells. Individuals may not know what the alarm bell means and as a result may respond inappropriately to its sound. Many buildings have installed mass notification or

Declarative Integration of Interactive 3D Graphics into the World-Wide Web: Principles, Current Approaches, and Research Agenda

February 10, 2013
Author(s)
Jacek Jankowski, Johannes Behr, Yvonne Jung, Kristian Sons, Philipp Slusallek, Sanford P. Ressler
With the advent of WebGL, plugin-free hardware-accelerated interactive 3D graphics has finally arrived in all major Web browsers. WebGL is an imperative solution that is tied to the functionality of rasterization APIs. Consequently, its usage requires a

The increase in conductance of a gold single atom chain during elastic elongation

February 7, 2013
Author(s)
Francesca Tavazza, Shmuel Barzilai, Douglas T. Smith, Lyle E. Levine
The conductance of monoatomic gold wires has been studied using ab initio calculations and the transmission was found to vary with the elastic strain. Counter-intuitively, the conductance was found to increase for the initial stages of the elongation

Characterization of Airborne Nanoparticle Releases from Consumer Products

February 6, 2013
Author(s)
Andrew K. Persily, Michael Magee, Dong H. Rim
This letter report provides a project update reflecting the activities to date under the FY2012 interagency agreement between CPSC and NIST to develop testing and measurement protocols for determining the quantities and properties of nanoparticles released

Measurement Science Needs for the Expanded Use of Green Concrete: Workshop Summary Report

February 6, 2013
Author(s)
Kenneth A. Snyder, Dale P. Bentz, Jeffrey W. Bullard, Chiara F. Ferraris, Nicos Martys, Paul E. Stutzman
In July 2012, NIST conducted the Green Concrete Workshop to bring together stakeholders from the concrete construction industry and identify critical needs for the expanded use of industrial by- product materials, such as fly ash and slag, in concrete

Smoke Alarm Performance in Kitchen Fires and Nuisance Alarm Scenarios

February 6, 2013
Author(s)
Thomas G. Cleary, Artur A. Chernovsky
Tests were conducted to assess the performance of various residential smoke alarms to kitchen fires and nuisance alarm cooking scenarios. A test structure representing a kitchen, living room and hallway was constructed to conduct the tests. Eight different

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 Office of Dietary Supplements (NIH-ODS). The DSQAP designed

Latent Interoperability Transmission Specification

February 5, 2013
Author(s)
Melissa Taylor, Will Chapman, Austin Hicklin, George Kiebuzinski, Peter Komarinski, John Mayer-Splain, Rachel Wallner
The Latent Interoperability Transmission Specification (LITS) is an application profile of the American National Standards Institute/National Institute of Standards and Technology, Information Technology Laboratory (ANSI/NIST-ITL) standard entitled

Markup Instructions for Extended Friction Ridge Features

February 5, 2013
Author(s)
Melissa Taylor, Will Chapman, Austin Hicklin, George Kiebuzinski, Peter Komarinski, John Mayer-Splain, Rachel Wallner
This document provides instructions for latent print examiners in marking friction ridge features to maximize consistency among examiners. This document builds upon the Extended Feature Set (EFS) defined in American National Standards Institute/National

Nonlinear Optics Quantum Computing with Circuit QED

February 5, 2013
Author(s)
Prabin Adhikari, Mohammad Hafezi, Jacob Taylor
One approach to quantum information processing is to use photons as quantum bits and rely on linear optical elements for most operations. However, some optical nonlinearity is necessary to enable universal quantum computing. Here, we suggest a circuit-QED

Prediction-Based Model Selection for Bayesian Multiple Regression Models

February 5, 2013
Author(s)
Adam L. Pintar
Model selection is an important part of model building for Bayesian linear models when the number of possible model terms is large. Most current approaches focus on posterior model probabilities or the deviance information criterion. This article proposes

Development of a Reference Material for Building Product Emissions Testing

February 4, 2013
Author(s)
Cynthia H. Reed, Zhe Liu, Steve Cox, Andrew K. Persily, John Little
The business of measuring volatile organic compound (VOC) emissions from building products and materials has grown to include more than 100 laboratories, many with unique testing equipment and analytical techniques. For the purposes of labeling building

Experimental investigation of Low-pressure refrigerant mixtures for Micro Cryogenic Coolers

February 4, 2013
Author(s)
Ryan J. Lewis, Yunda Wang, Peter E. Bradley, Marcia L. Huber, Ray Radebaugh, Y. C. Lee
Micro Cryogenic Coolers (MCCs) can achieve very small sizes and high efficiencies when operating with a refrigerant mixture, but micro-scale compressors have a limited pressure output. Four refrigerant mixtures were designed to operate between 0.4 MPa and

Report on the Static Analysis Tool Exposition (SATE) IV

February 4, 2013
Author(s)
Vadim Okun, Aurelien M. Delaitre, Paul E. Black
The NIST SAMATE project conducted the fourth Static Analysis Tool Exposition (SATE IV) to advance research in static analysis tools that find security defects in source code. The main goals of SATE were to enable empirical research based on large test sets

Spontaneous wrinkling in azlactone-based functional polymer thin films in 2d and 3d geometries for guided nanopatterning

February 4, 2013
Author(s)
Muruganathan Ramanathan, Bradley S. Lokitz, Jamie M. Messman, Christopher Stafford, S. M. Kilbey
We report a simple, one step process for developing wrinkling patterns in azlactone-based polymer thin films and brushes in 2D and 3D surfaces. The polymer used in this work wrinkles spontaneously upon deposition and solidification on a substrate without
Displaying 22251 - 22275 of 74196
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