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Displaying records 191 to 200 of 447 records.
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191. Advances in Radiometry for Ocean Color
Published: 11/10/2003
Authors: Steven W Brown, D K Clark, Bettye C Johnson, Howard W Yoon, Keith R Lykke, S Flora, M Feinholz, N Souaidia, C Pietras, Thomas C Stone, M Yarbrough, Y S Kim, R Barnes, J Mueller
Abstract: Organic materials in the oceans have spectral signatures based on their light-scattering properties. These optical properties are related to bio-physical and bio-chemical data products, such as the concentration of phytoplankton chlorophyll-{alpha} ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840030

192. Calibration and Characterization of Trap Detector Filter Radiometers
Published: 11/1/2003
Authors: David W Allen, George P Eppeldauer, Steven W Brown, E A. Early, Bettye C Johnson, Keith R Lykke
Abstract: We describe the development of a mechanically simple, radiometrically stable transfer radiometer designed for both radiance and irradiance measurements. The filter radiometer consists of a six-element Si trap detector, a temperature stabilized filter ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841781

193. Comparison of Laser-Based and Conventional Calibrations of Sun Photometers
Published: 11/1/2003
Authors: N Souaidia, C Pietras, G Fargion, R Barnes, R Frouin, Keith R Lykke, Bettye C Johnson, Steven W Brown
Abstract: Sun photometers are used to characterize the radiative properties of the atmosphere. They measure both the incident solar irradiance as well as the sky radiance (from scattered incident flux). Global networks of sun photometers provide data product ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841754

194. Preliminary Results of Aperture-Area Comparison for Exo-Atmospheric Solar Irradiance
Published: 11/1/2003
Authors: Bettye C Johnson, Maritoni Abatayo Litorja, James J. Butler
Abstract: Exo-atmospheric
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841755

195. Volumetric Gas Flow Standard with Uncertainty of 0.02% to 0.05%
Published: 11/1/2003
Authors: John D Wright, Michael R Moldover, Aaron N Johnson, A Mizuno
Abstract: A new pressure, volume, temperature, and time (PVTt) primary gas flow standard for calibrating flowmeters has an expanded uncertainty (k = 2) of between 0.02% and 0.05%. The standard diverts a steady flow into a collection tank of known volume durin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830814

196. Manufacturing and Quality Control of the NIST Reference Material 8240 Standard Bullet
Published: 10/26/2003
Authors: Eric Paul Whitenton, Clarence Johnson, David R Kelley, Robert A. Clary, Brian S. Dutterer, Li Ma, Jun-Feng Song, Theodore Vincent Vorburger
Abstract: The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). In support of this effort, the National Institute of Sta ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822088

197. Quantitative infrared spectra of vapor phase chemical agents
Published: 9/8/2003
Authors: S W Sharpe, T J Johnson, Pamela M Chu, J Kleimeyer, Randy Rowland
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903397

198. Temperature Characterization in the Collection Tank of the NIST 26 m(3) PVTt Gas Flow Standard
Published: 9/1/2003
Authors: Aaron N Johnson, John D Wright, Michael R Moldover, Pedro I Espina
Abstract: Gas temperature gradients created during the filling stage of a PVTt (Pressure-Volume-Temperature-time) calibration cycle, and those imposed by inhomogeneous room conditions, lead to uncertainties in the average gas temperature in the collection tank ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830800

199. The Development and Characterization of an Absolute Pyrometer Calibrated for Radiance Responsivity
Published: 9/1/2003
Authors: David W Allen, Robert D. Saunders, Bettye C Johnson, Charles E Gibson, Howard W Yoon
Abstract: The International Temperature Scale of 1990 (ITS-90), for temperatures above the freezing temperature of silver, is defined with pyrometers which rely upon spectral radiance ratios to one of the silver, gold or copper freezing temperature blackbodies ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841673

200. Analysis of Anelastic Dislocation Effects in the Presence of an Unknown Background
Published: 8/12/2003
Author: Ward L Johnson
Abstract: The general problem of analyzin- acoustic measurements of dislocation anelasticity in the presence of unknown background contributions is addressed for situations where material treatments induce changes in the physical parameters governing dislocati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851281



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