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Displaying records 191 to 200 of 447 records.
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191. 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

192. 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

193. 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

194. 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

195. 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

196. 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

197. 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

198. New Technologies for Radiometry: Impact on Ocean Color Research
Published: 8/1/2003
Authors: Bettye C Johnson, Steven W Brown, N Souaidia, M Feinholz, M Yarbrough, S Flora, D K Clark
Abstract: Ocean color satellites provide global determinations of chlorophyll a by measurements of the spectral radiance of the oceans. This is a difficult measurement because the at-satellite radiance is dominated by the atmospheric contribution, and pre-fli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841762

199. MOBY, A Radiometric Buoy for Performance Monitoring and Vicarious Calibration of Satellite Ocean Color Sensors: Measurement and Data Analysis Protocols
Published: 6/1/2003
Authors: D K Clark, Marilyn Yuen Murphy, M Yarbrough, M Feinholz, S Flora, W Broenkow, Bettye C Johnson, Steven W Brown, Y S Kim, J Mueller
Abstract: The Marine Optical Buoy (MOBY) (Clark et al. 1997) is the centerpiece of the primary ocean measurement site for calibration of satellite ocean color sensors based on independent in situ measurements. Since late 1996, the time series of normalized wa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841593

200. Stray-Light Correction of the Marine Optical Buoy
Published: 6/1/2003
Authors: Steven W Brown, Bettye C Johnson, S Flora, M Feinholz, M Yarbrough, R Barnes, Y S Kim, Keith R Lykke, D K Clark
Abstract: In ocean-color remote sensing, approximately 90% of the flux at the sensor originates from atmospheric scattering, with the water-leaving radiance contribution the remaining 10 % of the total flux. Consequently, errors in the measured top-of-the atm ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841707



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