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Search Publications by: Howard W. Yoon (Fed)

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Displaying 201 - 225 of 280

Thermal Imaging of Metals in a Kolsky-Bar Apparatus

January 1, 2003
Author(s)
Eric P. Whitenton, Richard L. Rhorer, Howard W. Yoon, D Basak, Richard J. Fields, Lyle E. Levine, Timothy J. Burns
For materials testing at elevated temperatures, we describe the design and the development of a resistively heated Kolsky-bar apparatus. The temperature of the sample is determined by non-contact thermometry and the spatial temperature gradients in the

The New Beamline 3 at SURF III for Source-Based Radiometry

March 1, 2002
Author(s)
Ping-Shine Shaw, D A. Shear, R Stamilio, Uwe Arp, Howard W. Yoon, Robert D. Saunders, Albert C. Parr, Keith R. Lykke
The Synchrotron Ultraviolet RAdiation Facility (SURF III) at the National Institute of Standards and Technology provides a unique opportunity for high-accuracy UV to infrared radiometry due to the 70-fold improvement in the uniformity of the magnetic field

Radiometric Characterization of Field Radiometers in Support of the 1997 Lunar Lake, Nevada, Experiment to Determine Surface Reflectance and Top-of-Atmosphere Radiance

September 1, 2001
Author(s)
Steven W. Brown, Bettye C. Johnson, Howard W. Yoon, James J. Butler, R Barnes, S F. Biggar, P R. Spyak, Kurtis J. Thome, E F. Zalewski, M Helmlinger, C J. Bruegge, S Schiller, G Fedosejevs, R Gauthier, S Tsuchida, S Machida
A continuing series of field campaigns to Lunar Lake, Nevada, has been established for the development of ground-truth measurement protocols and assessment of measurement uncertainties for the ground-based calibration of on-orbit satellite sensors. In June
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