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Displaying 44251 - 44275 of 143797

Isotope Dilution Liquid Chromatography - Mass Spectrometry Methods for Fat- and Water-Soluble Vitamins in Nutritional Formulations

November 24, 2011
Author(s)
Karen W. Phinney, Catherine A. Rimmer, Jeanice M. Brown Thomas, Lane C. Sander, Katherine E. Sharpless, Stephen A. Wise
Vitamins are essential to human health, and dietary supplements containing vitamins are widely used by individuals hoping to ensure they have adequate intake of these important nutrients. Measurement of vitamins in nutritional formulations is necessary to

Standard Reactions for Comparative Rate Studies: Experiments on the Dehydrochlorination Reactions of 2 Chloropropane, Chlorocyclopentane and Chlorocyclohexane

November 23, 2011
Author(s)
Iftikhar A. Awan, Donald R. Burgess Jr., Wing Tsang, Jeffrey A. Manion
Single pulse shock tube studies of the thermal dehydrochlorination reactions (chlorocyclopentane → cyclopentene + HCl) and (chlorocyclohexane → cyclohexene + HCl) at temperatures of 843 to 1021 K and pressures of 1.4 to 2.4 bar have been carried out using

Guidelines for Fire Design of Steel Beam-Columns: Part II, Beams.

November 22, 2011
Author(s)
M. M. Dwaikat, V. K. Kodur
Steel structures when exposed to fire develop significant fire induced forces and deformations, and these effects are to be properly accounted for in evaluating realistic response of structural systems. The current design methodologies are based on

Ignition Propensity of Hydrogen in the Presence of Metal Surfaces.

November 22, 2011
Author(s)
Chih-Jen Sung, James S. T'ien, Kyle Brady
Hydrogen as an energy carrier has received much attention in recent years as a result of a confluence of economic, environmental, and political pressures on the continued use of fossil fuels. The benefits of using hydrogen fuel over fossil fuel products

Wildfire Modeling.

November 22, 2011
Author(s)
Steven K. Krueger
This report documents the development and testing of the LES (Large Eddy Simulator) version of the WRF (Weather Research and Forecasting) model coupled with SFIRE, the wildland surface fire module, to simulate wildland fires. The relevance of this work to

Tracking the National Fire Problem: The Data behind the Statistics

November 21, 2011
Author(s)
Douglas S. Thomas, David T. Butry
The objective of this report is to support the development of descriptive statistics and associated measures of uncertainty for characterizing, tracking, and better understanding the root causes of the U.S. fire burden by identifying the relevant costs and

Phase-Sensitive Specular Neutron Reflectometry for Imaging the Nanometer Scale Compositional Depth profile of Thin-Film Materials

November 20, 2011
Author(s)
Brian Kirby, Paul A. Kienzle, Brian B. Maranville, Norman F. Berk, J. Krycka, Frank Heinrich, Charles Majkrzak
Neutron reflectometry is a powerful method for probing the molecular scale structure of both hard and soft condensed matter films. Moreover, the phase-sensitive methods which have been developed make it possible for specular neutron reflectometry to be
Displaying 44251 - 44275 of 143797
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