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Displaying 7151 - 7175 of 13218

Optimally Toothed Apertures for Reduced Diffraction

January 1, 1996

Author(s)

Eric L. Shirley, Raju V. Datla

… of Research of the National Institute of Standards and Technology …

Partitioning of Radioactive Elements in NIST Natural Matrix Standards

January 1, 1996

Author(s)

M K. Schultz, W C. Burnett, Kenneth G. Inn, J W. Thomas, Z C. Lin

… of Research of the National Institute of Standards and Technology … Partitioning of Radioactive Elements in NIST Natural Matrix Standards …

The NIST Detector-Based Luminous Intensity Scale

January 1, 1996

Author(s)

C L. Cromer, George P. Eppeldauer, Jonathan E. Hardis, Thomas C. Larason, Yoshi Ohno, Albert C. Parr

… of Research of the National Institute of Standards and Technology …

The NIST High Accuracy Scale for Absolute Spectral Response From 406 nm to 920 nm

January 1, 1996

Author(s)

Thomas C. Larason, S S. Bruce, C L. Cromer

… of Research of the National Institute of Standards and Technology …

Why a Condensate can be Thought of Having a Definite Phase,

January 1, 1996

Author(s)

S M. Barnett, K Burnett, A Vacarro

… of Research of the National Institute of Standards and Technology …

Zero-Temperature, Mean-Field Theory of Atomic Bose-Einstein Condensates,

January 1, 1996

Author(s)

Mark A. Edwards, R J. Dodd, Charles W. Clark, P A. Ruprecht, K Burnett

… of Research of the National Institute of Standards and Technology …

Microform Calibration Uncertainties of Rockwell Diamond Indenters

September 1, 1995

Author(s)

Jun-Feng Song, F Rudder, Theodore V. Vorburger, J Smith

… National and international comparisons in Rockwell hardness tests show significant differences. Uncertainties in the geometry of the Rockwell diamond indenters are largely … of Research of the National Institute of Standards and Technology …

1993 Intercomparison of Photometric Units Maintained at NIST (USA) and PTB (Germany)

January 1, 1995

Author(s)

Yoshihiro Ohno, G Sauter

… of Research of the National Institute of Standards and Technology …

A Third Generation Water Bath Based Blackbody Source

January 1, 1995

Author(s)

J B. Fowler

… of Research of the National Institute of Standards and Technology …

High Accuracy Measurement of Aperture Area Relative to a Standard Known Aperture

January 1, 1995

Author(s)

J B. Fowler, G Dezsi

… of Research of the National Institute of Standards and Technology …

Spectral Radiance of a Large-Area Integrating Sphere Source

January 1, 1995

Author(s)

J H. Walker, Alan Keith Thompson

… of Research of the National Institute of Standards and Technology …

Tables and Graphs of Photon Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients for Photon Energies 1 keV to 20 MeV for Elements Z = 1 to 92 and Some Dosimetric Materials

January 1, 1995

Author(s)

Stephen M. Seltzer, J H. Hubbell

… Publication of the Japanese Society of Radiological Technology ISSN …

Performance Evaluation of Two Azeotropic Refrigerant Mixtures of HFC-134a With R-290 (Propane) and R-600a (Isobutane)

June 1, 1994

Author(s)

M S. Kim, W. J. Mulroy, David Didion

… The reduction in chlorofluorocarbon (CFC) and hydrochlorofluorocarbon … determination of environmentally safe refrigerants for use in heat pumps, water chillers, air conditioners, and … Journal of Energy Resources Technology-Transactions of the ASME …

The Measurement and Uncertainty of a Calibration Standard for the SEM

March 1, 1994

Author(s)

Joseph Fu, M Croarkin, Theodore V. Vorburger

… of Research of the National Institute of Standards and Technology …

A Sealed Water Calorimeter for Measuring Absorbed Dose

January 1, 1994

Author(s)

S R. Domen

… of Research of the National Institute of Standards and Technology …

Beamcon III, a Linearity Measurement Instrument for Optical Detectors

January 1, 1994

Author(s)

Alan K. Thompson, H-M Chen

… of Research of the National Institute of Standards and Technology …

Conference Report on Critical Issues in Air Ultraviolet Metrology Workshop

January 1, 1994

Author(s)

Alan K. Thompson, M K. Hobish

… of Research of the National Institute of Standards and Technology … Conference Report on Critical Issues in Air Ultraviolet Metrology Workshop …

Improved Automated Current Control for Standard Lamps

January 1, 1994

Author(s)

J H. Walker, Alan Keith Thompson

… of Research of the National Institute of Standards and Technology …

Intercomparison of the ITS-90 Radiance Temperature Scales of NPL and NIST

January 1, 1994

Author(s)

Graham Machin, B. Carol Johnson, Charles E. Gibson, R L. Rusby

… of Research of the National Institute of Standards and Technology …

Precision Comparison of the Lattice Parameters of Silicon Monocrystals

January 1, 1994

Author(s)

Ernest G. Kessler, Albert Henins, R Deslattes, L Nielsen, Muhammad Arif

… of Research of the National Institute of Standards and Technology …

Uncertainties in Dimensional Measurements Made at Nonstandard Temperatures

January 1, 1994

Author(s)

Dennis A. Swyt

… This report examines the effects of uncertainties in temperature and coefficient of thermal expansion on the … coefficients associated with values given in engineering references, standard reference data, standard … of Research of the National Institute of Standards and Technology …