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    Dennis K. Branstad

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    DENNIS K. BRANSTAD Inducted: 2002 Citation: For leadership in computer cryptography and information security research leading to federal standards for data encryption and password usage Tenure: 1973 - 1994 Birth: 1939, Leland, Iowa Education: Iowa State University: BS (Mathematics), 1961, MS (Computer Science), 1968, PhD (Computer Science), 1970 Positions held: Computer Scientist Computer Security Group Leader NBS/NIST Fellow Honors: U.S. Department of Commerce: Silver Medal, 1975; Gold Medal 1980 Iowa State University Alumni Citation of Merit, 1989 National Computer Security Award, 1995 Memberships: Institute of Electrical and Electronics Engineers American National Standards Institute: Member and Technical Committee Chairman International Standards Organization: Member Federal Information Processing Standards (FIPS) Committees: Member and Technical Committee Chairman National Computer Security Conference: Cofounder and Technical Sessions Chairman Publications: FIPS 46: Data Encryption Standard (DES), Editor and Project Leader FIPS 74: Guidelines for Implementing and Using the DES FIPS 81: Password Usage Standard, Editor and Project Leader Articles and Book Chapters on Information Processing Security Technolog

    Burton H. Colvin

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    Burton H. Colvin Inducted: 2002 Citation: For management of important NBS/NIST programs in applied mathematics and academic affairs Tenure: 1972-1994 Birth: 1916, West Warwick, Rhode Island Death: 2001, Gaithersburg, Maryland Education: Brown University: BA, 1938; MA, 1938 University of Wisconsin, PhD, 1943 Positions held: Chief, Applied Mathematics Division Director, Center for Applied Mathematics Director, Office of Academic Affairs Deputy Director, Office of Academic Affairs Honors: U.S. Department of Commerce Silver Medal, 1978; Gold Medal, 1981 Presidential Meritorious Executive Rank Award, 1980 NIST Equal Employment Opportunity Award, 1988 Who’s Who in America Memberships: American Association for the Advancement of Science, Fellow and Council Member Mathematical Association of America National Council of Teachers of Mathematics Society for Industrial and Applied Mathematics, President, and Chair, Board of Trustees Professional activities: Boeing Scientific Research Laboratories, Head, Mathematics and Information Sciences Conference Board of Mathematical Sciences, Chair Committee of Scientific Society Presidents Council on Science Education, Vice Chair Knox College, Seattle Comm. College, Advisory Committee National Academy of Sciences, Board on Math Science Education, Board on Computer Science & Engineering National Physical Sciences Consortium, Vice President & Board of Directors Stanford University, Chair, Computer Science Advisory Committee U.S. Air Force Office of Scientific Research, Chair, Math Sciences Evaluation Committe

    Bernadine Dunfee

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    BERNADINE L. DUNFEE NBS: 1943-1976 Birth: May 13, 1914, Coal Grove, Ohio Death: October 14, 2009 Education: Wilmington College (Ohio), BS (education), 1939 George Washington University, MS (physics), 1955 Principal Field: Voltage and Current Ratio Standards Positions Held at NBS: Project Leader, Electricity Division Chief, Electrical Instruments Section, Electricity Division NBS Museum Committee (w/ Francis Silsbee) Honors: U. S. Department of Commerce Silver Medal, 1969 NBS Nominee for Federal Women’s Award, 1968 Institute of Electrical and Electronics Engineers (IEEE): IEEE Prize Paper, 1960 Sigma Pi Sigma Sigma Xi Memberships: Institute of Electrical and Electronics Engineers, Senior Member, Fellow American National Standards Institute (ANSI) Standards Alumni Association, Director, 1988-1994 Publications: Numerous papers related to electrical standards and measurements, including: Methods for Measuring the “Q” of Large Reactors (coauthor),Trans. AIEE Winter Meeting, (Jan-Feb 1956) An A-C Kelvin Bridge for the Audio-Frequency Range, AIEE Trans., (May 1956) A Standard Current Transformer and Comparison Method... , IRE Trans. Instr., (1960) Method for Calibrating a Standard Volt Box, NBS J. Res. 67, (Jan-Mar 1963) The Design and Performance of Multi-Range Current Transformer Standards for Audio Frequencies, IEEE Trans. IM-14, 4, (Dec. 1965) An International Comparison of Current Ratios at Audio Frequencies (co-author), IEEE Trans. IM-14, 4, (Dec. 1965) Electrical Standards and Measurements (co-author), ElectroTechnology, 79, (Jan. 1967) Resistive Voltage Ratio Standard and Measuring Circuit (co-author), IEEE Trans. IM-19, (Nov. 1970

    News Briefs

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    The 1997 North American Interagency Intercomparison of Ultraviolet Spectroradiometers Including Narrowband Filter Radiometers

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    The fourth North American Intercomparison of Ultraviolet Monitoring Spectro-radiometers was held September 15 to 25, 1997 at Table Mountain outside of Boulder, Colorado, USA. Concern over stratospheric ozone depletion has prompted several government agencies in North America to establish networks of spectroradiometers for monitoring solar ultraviolet irradiance at the surface of the Earth. The main purpose of the Intercomparison was to assess the ability of spectroradiometers to accurately measure solar ultraviolet irradiance, and to compare the results between instruments of different monitoring networks. This Intercomparison was coordinated by NIST and NOAA, and included participants from the ASRC, EPA, NIST, NSF, SERC, USDA, and YES. The UV measuring instruments included scanning spectroradiometers, spectrographs, narrow band multi-filter radiometers, and broadband radiometers. Instruments were characterized for wavelength accuracy, bandwidth, stray-light rejection, and spectral irradiance responsivity. The spectral irradiance responsivity was determined two to three times outdoors to assess temporal stability. Synchronized spectral scans of the solar irradiance were performed over several days. Using the spectral irradiance responsivities determined with the NIST traceable standard lamp, and a simple convolution technique with a Gaussian slit-scattering function to account for the different bandwidths of the instruments, the measured solar irradiance from the spectroradiometers excluding the filter radiometers at 16.5 h UTC had a relative standard deviation of +/-4% for wavelengths greater than 305 nm. The relative standard deviation for the solar irradiance at 16.5 h UTC including the filter radiometer was +/-4% for filter functions above 300 nm

    The microcalorimeter for industrial applications

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    To achieve the dramatic increases in x-ray spectral resolution (<20 eV at 1.5k eV) desired by market segments such as the semiconductor industry, NIST developed a transition-edge sensor (TES) microcalorimeter. To bring this exciting, yet demanding, new technology to the industrial users, certain criteria must be addressed. Aspects of resolution, cooling and hold time, count rates as well as vibrations are considered. Data is presented to the present efforts to handle these issues as well as discussing development plans for the future

    Stability of standard electrolytic conductivity solutions in glass containers

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    The stability of solutions having an electrolytic conductivity, kappa, of 5 micro S/cm to 100 000 micro S/cm packaged in glass screw-cap bottles, glass serum bottles, and glass ampoules was monitored for 1 year to 2 years. The conductivity was determined by measuring the ac resistance of the solution. Mass loss was also monitored for solutions packaged in bottles. The solutions were prepared using KCl in water (kappa greater than or equal to 100 micro S/cm) or KCl in 30 % (by mass) n-propanol 70 % (by mass) water (kappa less than or equal to 15 micro S/cm). The conductivity changes were compared by packaging type and by nominal kappa. The main causes of the kappa changes are evaporation (screw-cap bottles) and leaching (screw-cap bottles, serum bottles, and ampoules). Evaporation is determined from mass loss data; leaching occurs from the glass container with no change in mass. The choice of optimal packaging, which depends on the conductivity level, is the packaging in which kappa changes the least with time. Ampoules are the most suitable packaging for standards having nominal kappa values of 500 micro S/cm to 100 000 micro S/cm. Screw-cap bottles are most suitable for standards having a nominal kappa of 5 micro S/cm to 100 micro S/cm

    News Briefs

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