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You searched on: Author: howard yoon

Displaying records 41 to 50 of 122 records.
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41. Influence of Heating Rate on Flow Stress in High-Speed Machining Processes
Published: 4/1/2004
Authors: Timothy J Burns, Robert W Ivester, Michael Kennedy, Richard L. Rhorer, Matthew A. Davies, Howard W Yoon, Lyle E Levine, Richard Joel Fields, D Basak, Eric Paul Whitenton
Abstract: For several decades, a major focus of machining research has been the measurement and prediction of temperature. Here, the influence of the rate of heating on the flow stress, and the implications of this for finite-element modeling of high speed me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822170

42. Temperature Control of Pulse Heated Specimens in a Kolsky Bar Apparatus Using Microsecond Time-Resolved Pyrometry
Published: 3/1/2004
Authors: D Basak, Howard W Yoon, Richard L. Rhorer, Timothy J Burns, T Matsumoto
Abstract: Analysis of maching processes is important in the understanding and improving of manufacturing methods. The modeling of machining processes relies on high-strain-rate, high-temperature material properties. A split-Hopkinson (or Kolsky) bar has been ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853264

43. A comparison of ITS-90 and a detector-based scale between NPL and NIST using metal-carbon eutectics
Published: 1/1/2004
Authors: David W Allen, Charles E Gibson, D L Lowe, Graham Machin, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104298

44. Comparison of the NIST radiance temperature scale with the detector-based radiance temperature scale from 1200 K to 2800 K
Published: 1/1/2004
Authors: David W Allen, George P Eppeldauer, Charles E Gibson, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104294

45. Methods to reduce the size-of-source effect in radiation thermometers
Published: 1/1/2004
Authors: David W Allen, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104296

46. Portable LED-illuminated radiance source
Published: 1/1/2004
Authors: David W Allen, G Dezsi, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104297

47. Temperature determinations of the Ag and Au-freezing points using a detector-based radiation thermometer
Published: 1/1/2004
Authors: David W Allen, Steven W Brown, George P Eppeldauer, Charles E Gibson, Maritoni Abatayo Litorja, Keith R Lykke, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104295

48. The realization and the dissemination of the detector-based kelvin
Published: 1/1/2004
Authors: David W Allen, Steven W Brown, George P Eppeldauer, Charles E Gibson, Maritoni Abatayo Litorja, Keith R Lykke, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104293

49. 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

50. Thermal Imaging of Metals in a Kolsky-Bar Apparatus
Published: 10/1/2003
Authors: Howard W Yoon, D Basak, Richard L. Rhorer, Eric Paul Whitenton, Timothy J Burns, Richard Joel Fields, Lyle E Levine
Abstract: 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841727



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