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Phase Uncertainty in Digital Holographic Microscopy Measurements in the Presence of Solution Flow Conditions
No full textDigital holographic microscopy (DHM) is a surface topography measurement technique with reported sub-nanometer vertical resolution. Although it has been made commercially available recently, few studies have evaluated the uncertainty or noise in the phase measurement by the DHM. As current research is using the DHM to monitor surface topography changes of dissolving materials under flowing water conditions, it is necessary to evaluate the effect of water and flow rate on the uncertainty in the measurement. Uncertainty in this study was concerned with the temporal standard deviation per pixel of the reconstructed phase. Considering the effects of solution flow rate, magnification, objective lens type (air or immersion), and experimental configuration, measurements under static conditions in air and in water with an immersion lens yielded the smallest amount of uncertainty (mean of � 0.5 nm up to 40_ magnification). Increasing the water flow rate resulted in an increase in mean uncert
A close-up image of sandstone from Cumberland, Ohio, embedded in the NIST stone wall. A loose nugget sits in the weathered pocket
No full textThe NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging process of stones used in construction under outside weathering conditions
A close-up of sandstone from Marquette, Michigan, part of the NIST stone wall
No full textThis image shows a close-up of red and gray sandstone from Marquette, Michigan. It is part of the NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging process of stones used in construction under outside weathering conditions
In the center of this image is a fossil-filled marble from Salzburg, Austria, part of the NIST stone wall
No full textThe NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging process of stones used in construction under outside weathering conditions
Francis E. Sullivan
No full textFRANCIS E. SULLIVAN
NBS/NIST: 1982-1993
INDUCTED: 2017
Birth: 12 May 1941, Brooklyn, New York
EDUCATION:
Pennsylvania State University, BS (Physics), 1962 University of Pittsburgh, PhD (Mathematics), 1968
CITATION:
For establishing and leading the Computing and Applied Mathematics Laboratory which pioneered modern computing technologies and techniques for NIST.
POSITIONS HELD AT NBS/NIST:
Visiting Scientist, Scientific Computing Division, Center for Applied Mathematics (CAM), National Engineering
Laboratory (NEL), 1979-1982
Chief, Scientific Computing Division, CAM, NEL, 1982-1986
Director, Computing and Applied Mathematics Laboratory, 1986-1993
Guest Researcher, Information Technology Laboratory, 1993-present
HONORS:
U.S. Department of Commerce Gold Medal (1987)
Senior Executive Service Meritorious Presidential Rank Award (1988)
MEMBERSHIPS:
Interagency Committee on the Extramural Mathematics Program (1988-1991)
Society for Industrial and Applied Mathematics (SIAM) Committee on Science Policy (1990-1993)
Maryland Mathematics Coalition Board of Governors (1990-1993)
Member, Office of Science and Technology Policy (OSTP) Committee on Supercomputer Safeguards
OSTP Committee on High Performance Computing
Steering Committee on Software Development, Research and Advanced Technology, The Pentagon (1990) Steering Group on Advanced Software, FCCSET Committee on Industry and Technology (1992)
SIAM Board of Trustees
PUBLICATIONS:
More than 100 publications including:
Peressini, A.I., Sullivan, F.E., and Uhl, J.J., The Mathematics of Nonlinear Programming, Springer Verlag,
(1988)
Amar, J.G., Sullivan, F.E., and Mountain, R.D., "Monte Carlo Study of Growth in the Two- Dimensional Spin-
Exchange Kinetic Ising Model," Physical Review B 37, 196 [244] (1988)
Sullivan, F.E., Mountain, R.D., and O’Connell, J., "Molecular Dynamics on Vector Computers", Journal of
Computational Physics 61, 138 [30] (1985)
O’Connell, J., Sullivan, F.E., et al., "Self-avoiding Random Surfaces: Monte Carlo Study Using Oct-tree Data-
structure," Journal of Physics A 24, 4619 [29] (1991)
Stella, A.L., Orlandini, E., Beichl, I., Sullivan, F.E., Tesi, M.C., and Einstein, T.L., "Self-Avoiding Surfaces, Topology, and Lattice Animals," Physical Review Letters 69, 3650 [25] (1992
(Audio Part 2 of 2) Oral history interview of Willie E. May, January 31, 2017 / [persons present]: Drs. William Gadzuk, Curt Reimann, Harry Hertz, Byant Nelson, Laurie Locascio, Mike Rowe, and Hratch Semerjian
No full textDr. Willie E. May former NIST Director and former Under Secretary of Commerce for Standards and Technology discusses his career at NIST beginning in 1971 until his retirement in December 2016. Dr. May led research activities in chemical and biological measurement science prior to serving as associate director for laboratory programs and principal deputy to the NIST director
(Transcript) Oral history interview of Willie E. May, January 31, 2017 / [persons present]: Drs. William Gadzuk, Curt Reimann, Harry Hertz, Byant Nelson, Laurie Locascio, Mike Rowe, and Hratch Semerjian
No full textDr. Willie E. May former NIST Director and former Under Secretary of Commerce for Standards and Technology discusses his career at NIST beginning in 1971 until his retirement in December 2016. Dr. May led research activities in chemical and biological measurement science prior to serving as associate director for laboratory programs and principal deputy to the NIST director
Oral history interview of Willie E. May, January 31, 2017 / [persons present]: Drs. William Gadzuk, Curt Reimann, Harry Hertz, Byant Nelson, Laurie Locascio, Mike Rowe, and Hratch Semerjian
No full textDr. Willie E. May former NIST Director and former Under Secretary of Commerce for Standards and Technology discusses his career at NIST beginning in 1971 until his retirement in December 2016. Dr. May led research activities in chemical and biological measurement science prior to serving as associate director for laboratory programs and principal deputy to the NIST director
Comparison of One-Dimensional and Volumetric Computed Tomography Measurements of Injected-Water Phantoms
No full textThe goal of this study was to compare volumetric analysis..in computed tomography (CT) with the..length measurement prescribed by the..Response Evaluation Criteria in Solid Tumors..(RECIST) for a system with known mass and unknown shape...We injected 2 mL to 4 mL of water into vials of sodium..polyacrylate and into disposable diapers...Volume measurements of the sodium polyacrylate powder were able..to predict both mass and proportional changes in mass within..a 95 % prediction interval of width..12 % and 16 %, respectively...The corresponding figures for RECIST were 102 % and 82 %