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Displaying 18101 - 18125 of 53154

Ab initio kinetic coefficients of gaseous hydrogen

January 9, 2010
Author(s)
James B. Mehl, Marcia L. Huber, Allan H. Harvey
The spherical portion of the hydrogen intermolecular potential recently determined in ab initio calculations by Patkowski et al [J. Chem. Phys. 129:094304 (2008)] was used to calculate the viscosity and spherical contribution to the thermal conductivity of

Volumetric CT in Lung Cancer: An Example for the Qualification of Imaging as a Biomarker

January 9, 2010
Author(s)
Charles D. Fenimore, Andrew Buckler, P. David Mozeley, Lawrence H. Schwartz, Nicholas Petrick, Michael McNitt-Gray, Kevin O?Donnell, Wendy Hayes, Hyun Kim, Laurence Clarke, Daniel Sullivan
The Quantitative Imaging Biomarker Alliance (QIBA) has been organized to establish a methodology whereby multiple stakeholders collaborate to test hypotheses about the technical feasibility and the medical value of imaging biomarkers. It has charged the

Cryptographic Key Management Workshop Summary - June 8-9, 2009

January 8, 2010
Author(s)
Elaine B. Barker, Dennis K. Branstad, Santosh Chokhani, Miles E. Smid
On June 8 and 9, 2009, NIST held a Cryptographic Key Management (CKM) Workshop at its Gaithersburg, Maryland, campus that attracted approximately 80 people attending the workshop in person, with another 75 participating through video conferencing, and an

The Human Side of Mass Notification

January 8, 2010
Author(s)
Erica D. Kuligowski
On February 19, 2009, the National Institute of Standards and Technology (NIST) held a Federal Workshop on Mass Notification Messages. Participants from 12 federal agencies attended to discuss issues surrounding warning the public, building occupants, and

A New Primary Standardization of Th-229

January 7, 2010
Author(s)
Ryan P. Fitzgerald, Lizbeth Laureano-Perez, Michelle M. Hammond, Leticia S. Pibida, Svetlana Nour, Brian E. Zimmerman
The National Institute of Standards and Technology (NIST) has certified a high-purity Th-229 Standard Reference Material as SRM 4328C, based on live-timed 4-pi alpha,beta-gamma anticoincidence counting (LTAC) of the equilibrium solution. The LTAC system

Density and Speed of Sound Measurements of Hexadecane

January 7, 2010
Author(s)
Stephanie L. Outcalt, Arno R. Laesecke, Tara J. Fortin
The density and speed of sound of hexadecane have been measured using two instruments. Both instruments use the vibrating-tube method for measuring density. Ambient pressure (83 kPa) density and speed of sound measurements were carried out with a rapid

A Hybrid Frame Concealment Algorithm for H.264/AVC

January 5, 2010
Author(s)
Hamid Gharavi
In packet-based video transmissions, packets loss due to channel errors may result in the loss of the whole video frame. Recently, many error concealment algorithms have been proposed in order to combat channel errors, however most of the existing

Demonstrating the metrological compatibility of uranium isotope amount ratio measurement results performed by GSMS, TIMS and MC-ICPMS techniques

January 5, 2010
Author(s)
Olivio Pereira de Oliveira, Willy De Bolle, Stefan Richter, Adolfo Alonso, Emmanuel Ponzevera, Christophe Qu?tel, Jorge Eduardo de Souza Sarkis, Roger Wellum, Ruediger Kessel
The metrological compatibility of n(234U)/n(238U), n(235U)/n(238U) and n(236U)/n(238U) isotope amount ratio measurement results performed by gas source mass spectrometry (GSMS), thermal ionisation mass spectrometry (TIMS) and multi-collector inductively

High Throughput Techniques for Fire Retardant Materials Development

January 5, 2010
Author(s)
Rick D. Davis, Richard E. Lyon
None was required. Here is the last paragraph of the introduction. In this chapter are examples of how we used HT to accelerate knowledge about polymer materials. The first case study describes the development and application of HT tools and methods to

Low-Cost, High-Throughput, Automated Counting of Bacterial Colonies

January 5, 2010
Author(s)
Matthew L. Clarke, Robert L. Burton, A. N. Hill, Maritoni A. Litorja, Moon H. Nahm, Jeeseong Hwang
Research involving bacterial pathogens often requires enumeration of bacteria colonies. Here we present a low-cost, high-throughput colony counting system consisting of colony counting software and a consumer-grade digital camera or document scanner. We

NIST Time and Frequency Bulletin

January 5, 2010
Author(s)
Eyvon Petty
The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services)

Nanoscale Measurements With the TSOM Optical Method

January 4, 2010
Author(s)
Ravikiran Attota
A novel through-focus scanning optical microscope (TSOM - pronounced as 'tee-som') technique that produces nanometer dimensional measurement sensitivity using a conventional optical microscope by analyzing images obtained at different focus positions will

SRM NIST Standard Reference Materials Catalog, January 2010

January 4, 2010
Author(s)
Regina R. Montgomery, Joan C. Sauerwein
NIST Standard Reference Materials (SRMs) are used by industry, government, and academia to ensure the highest quality measurements. This catalog lists over 1100 individual reference materials produced and sold by NIST, each with carefully assigned values

3-D Metallization by Damascene Electrodeposition

January 1, 2010
Author(s)
Thomas P. Moffat, Chang H. Lee, Daniel Josell
Electrodeposition is a key fabrication process used in the state-of-the-art multilevel Cu metallization of microelectronic interconnects from transistor to circuit board length scale. Recent electrochemical surface science and feature filling studies have

Accurate optical analysis of single molecule entrapment in nanoscale vesicles

January 1, 2010
Author(s)
Joseph E. Reiner, Andreas Jahn, Samuel M. Stavis, Michael J. Culbertson, Wyatt N. Vreeland, Daniel L. Burden, Jon C. Geist, Michael Gaitan
We present a non-destructive method to characterize low analyte concentrations in nanometer scale lipid vesicle formulations. Our method is based on the application of fluorescence fluctuation analysis (FFA) and multi-angle laser light scattering (MALLS)
Displaying 18101 - 18125 of 53154