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Author: howard yoon

Displaying records 91 to 100 of 121 records.
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91. Calibrated Thermal Microscopy of the Tool-Chip Interface in Machining
Published: 4/1/2000
Authors: Michael Kennedy, Matthew A. Davies, Howard W Yoon, Timothy J Burns
Abstract: A critical parameter in predicting tool wear during machining and in accurate computer simulations of machining is the spatially-resolved temperature at the tool-chip interface. We describe the development and the calibration of a nearly diffraction- ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821922

92. A Comparison of ITS-90, Above the Silver Point, as Realised by NIST and NPL
Published: 1/1/2000
Authors: Graham Machin, Charles E Gibson, Bettye C Johnson, Howard W Yoon
Abstract: A comparison of the radiance temperature scales between 1000 C and 2700 C has been performed between the National Physical Laboratory (NPL) and the National Institute of Standards and Technology (NIST). Two transfer radiation thermometers, of identi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841356

93. Comparison of the Absolute Detector-based Spectral Radiance Assignment with the Current NIST-Assigned Spectral Radiance of Tungsten-strip Lamps
Published: 1/1/2000
Authors: Howard W Yoon, Charles E Gibson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104276

94. Micro-NCT of the Tool-Chip Interface in Machining
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6572
Published: 1/1/2000
Authors: Timothy J Burns, Matthew A. Davies, Michael Kennedy, Howard W Yoon
Abstract: Machining is a ubiquitous manufacturing process with tremendous economic impact. For example, Dr. Eugene Merchant, who is a founder of the scientific treatment fo machining processes, recently estimated that approximately 15 % of the value of all man ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821885

95. NIST-PTB Measurements of the Radiometric Temperatures of a High-Temperature Black Body Using Filter Radiometers
Published: 1/1/2000
Authors: Howard W Yoon, P Sperfeld, S Galal Yousef, J Metzdorf
Abstract: The results of a bilateral intercomparison of radiometric temperatures of a high-temperature blackbody from 2100 K to 3100 K measured using filter radiometers are described. The measurements took place over a ten-day period in October 1998 at the PT ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841398

96. Radiometric Calibration History of Visible and Near Infrared Portable Radiometers
Published: 1/1/2000
Authors: Bettye C Johnson, Steven W Brown, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103898

97. The Fifth SeaWiFS Intercalibration Round-Robin Experiment (SIRREX-S), July 1996
Published: 10/1/1999
Authors: Bettye C Johnson, Howard W Yoon, Sally Skidmore Bruce, Ping-Shine Shaw, E A Thompson, S B. Hooker, R Barnes, R Eplee, S Maritorena, J Mueller
Abstract: This report documents the fifth Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Intercalibration Round-Robin experiment (SIRREX-5), which was held at the National Institute of Standards and Technology (NIST) on 23 July to 30 July 1996. The agenda fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841397

98. Radiometric Measurement Comparisons Using Transfer Radiometers in Support of the Calibration of NASA's Earth Observing System (EOS) Sensors
Published: 9/1/1999
Authors: James J. Butler, Bettye C Johnson, Steven W Brown, Howard W Yoon, R Barnes, B L Markham, S F Biggar, E F Zalewski, P R Spyak, J W Cooper, F Sakuma
Abstract: EOS satellite instruments operating in the visible through the shortwave infrared wavelength regions (from 0.4 um to 2.5 um) are calibrated prior to flight for radiance using integrating spheres at a number of instrument builder facilities. The trac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841386

99. The Fifth SeaWiFS Intercalibration Round-Robin Experiment (SIRREX-5), ed. by S.B. Hooker and E.R. Firestone
Published: 7/1/1999
Authors: Bettye C Johnson, Howard W Yoon, S S Bruce, Ping-Shine Shaw, Alan K Thompson, S B. Hooker, R A Barnes, E Eplee r, S Maritorena, J L Mueller
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104556

100. Determination of Radiance Temperatures Using Detectors Calibrated for Absolute Spectral Power Response
Published: 6/1/1999
Authors: Howard W Yoon, Charles E Gibson
Abstract: We describe a method of directly determining blackbody radiance temperatures using filter detectors calibrated for absolute spectral power responsivity. The calibrations for absolute power are derived from a highly-accurate cryogenic radiometer, an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841360



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