1,724,260 research outputs found
Lura J. Powell (Undated)
No full textDr. Lura J. Powell worked at the National Institute of Standards and Technology (NIST) from 1972-1999. She held numerous positions at NIST including Research Chemist; Director, Biotechnology Division; Deputy Director, Center for Chemical Technology; Deputy Director, National Measurement Laboratory; and Director of the Advanced Technology Program. Image Source: Lura J. Powell Biographical File, NIST Archives
J. Powell, Redsull, and others
No full textFront: J. Powell and Redsull (Bertha (Redsull) Brixton's father?). Possibly at Nahun
Mr. and Mrs. T. J. Powell
No full textMr. and Mrs. T. J. Powell celebrate their 50th wedding anniversary, 02/1938https://mavmatrix.uta.edu/specialcollections_startelegram1930s/4323/thumbnail.jp
S. J. Powell, factory manager of Consolidated Aircraft Corporation, Fort Worth Division
No full textS. J. Powell, factory manager of Consolidated Aircraft Corporation Fort Worth Division.https://mavmatrix.uta.edu/specialcollections_startelegram1940s/14109/thumbnail.jp
Mrs. S. J. Powell and sons, Eugene Powell (left) and Richard Powell
No full textMrs. S. J. Powell and sons, Eugene, left, and Richard, right.https://mavmatrix.uta.edu/specialcollections_startelegram1940s/16249/thumbnail.jp
Mr. and Mrs. T. J. Powell celebrate their 50th wedding anniversary
No full textMr. and Mrs. T. J. Powell celebrate their 50th wedding anniversary, 02/1938https://mavmatrix.uta.edu/specialcollections_startelegram1930s/4324/thumbnail.jp
CEDRIC J. POWELL
No full textCEDRIC J. POWELL
Inducted: 2010
Citation:
For exceptional scientific and organizational work in establishing the physical basis (and infrastructure) for electron spectroscopies of solids, especially as applied to quantitative surface analysis and surface standards
Tenure: 1962-2006
Birth: 1935; Perth, Australia
Education:
University of Western Australia, BS (Physics), 1956
University of Western Australia, PhD (Physics), 1962
Positions held:
Physicist, Atomic Physics and Optical Physics Divisions, Institute for Basic Standards, 1962-1978
Chief, Surface Science Division, Center for Chemical Physics, 1978-1991
Leader, Surface Spectroscopies and Thin Films Group, Surface and Microanalysis Science Division, 1991-1994
NIST Fellow, Surface and Microanalysis Science Division, 1994-2006
NIST Scientist Emeritus, Surface and Microanalysis Science Division, 2007-Present
Honors:
US Department of Commerce Silver Medal (1983) and Gold Medal (1986)Award of Merit, American Society for Testing and Materials (ASTM) (1988)
Riviere Prize, UK ESCA Users Group (1992)
Creation of Cedric Powell Award by ASTM Committee E-42 on Surface Analysis (1993)
Creation of Powell Prize by the Surface Analysis Society of Japan (1995)
Albert Nerken Award, American Vacuum Society (2001)
Technology Prize, International Union of Vacuum Science, Technique, and Applications (2007)
Memberships:
American Physical Society, American Vacuum Society, American Assn. for the Advancement of Science
ASTM Committee E-42 on Surface Analysis, chairman (1980-85)
Board of Trustees, Gordon Research Conferences (1982-88), chairman (1985-86)
Board of Directors, American Vacuum Society (1988-89)
ISO Technical Committee 201 on Surface Chemical Analysis, chairman (1992-98)
Publications:
Co-editor of 3 books, co-author of 5 NIST databases, and an author of more than 240 publications including:
Powell, C. J., “Contrasting Valence-Band Auger-Electron Spectra for Silver and Aluminum”, Phys. Rev. Letters 30, 1179 (1973)
Powell, C. J., “Attenuation Lengths of Low-energy Electrons in Solids”, Surface Science 44, 29 (1974)
Powell, C. J., “Cross Sections for Ionization of Inner-shell Electrons by Electrons”, Rev. Mod. Phys. 48, 33 (1976)
Powell, C. J. and Seah, M. P., “Precision, Accuracy, and Uncertainty in Quantitative Surface Analyses by Auger-Electron Spectroscopy and X-ray Photoelectron Spectroscopy”, J. Vac. Sci. Technol. A 8, 735 (1990)
Tanuma, S., Powell, C. J., and Penn, D. R., ""Calculations of Electron Inelastic Mean Free Paths. II. Data for 27 Elements over the 50-2000 eV Range,"" Surface and Interface Analysis 17, 911 (1991)
Powell, C. J. and Jablonski, A., “Evaluation of Measured and Calculated Electron Inelastic Mean Free Paths Near Solid Surfaces,” J. Phys. Chem. Ref. Data 28, 19 (1999
Martyn J. Powell, The Politics of Consumption in Eighteenth-Century Ireland
No full textEscarbelt Bernard. Martyn J. Powell, The Politics of Consumption in Eighteenth-Century Ireland. In: Études irlandaises, n°33 n°1, 2008. pp. 159-160
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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