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Journal of Research (NIST JRES)

Hysteresis and Related Error Mechanisms in the NIST Watt Balance Experiment

Author(s)
J. Schwarz, Ruimin Liu, David B. Newell, Richard L. Steiner, Edwin R. Williams, Douglas T. Smith, A Erdemir, J Woodford
The NIST Watt Balance experiment is being completely rebuilt after its 1998 determination of the SI Volt and Planck's constant. That measurement yielded a

Materials Research With Neutrons at NIST

Author(s)
Ronald L. Cappelletti, Charles J. Glinka, Susan T. Krueger, Richard M. Lindstrom, Jeffrey W. Lynn, Henry J. Prask, E Prince, John J. Rush, J. Michael Rowe, Sushil K. Satija, B H. Toby, A. Tsai, Terrence J. Udovic

Length and Dimensional Measurements at NIST

Author(s)
Dennis A. Swyt
This paper reports on the past, present, and future of length and dimensional measurements at NIST. It covers the evolution of the SI unit of length through its

Information Technology Measurement and Testing Activities at NIST

Author(s)
Michael D. Hogan, Lisa J. Carnahan, Robert J. Carpenter, David W. Flater, James E. Fowler, Simon P. Frechette, M M. Gray, L A. Johnson, R. McCabe, Douglas C. Montgomery, Shirley M. Radack, R Rosenthal, Craig M. Shakarji
Our high technology society continues to rely more and more upon sophisticated measurements, technical standards, and associated testing activities. This was

Statistics and Measurements

Author(s)
C M. Croarkin
For more than 50 years, the Statistical Engineering Division (SED) has been instrumental in the success of a broad spectrum of metrology projects at NBS/NIST

The Kelvin and Temperature Measurements

Author(s)
Billy W. Mangum, G T. Furukawa, Kenneth G. Kreider, Christopher W. Meyer, Dean C. Ripple, Gregory F. Strouse, Weston L. Tew, Robert D. Saunders, Bettye C. Johnson, Howard W. Yoon, Michael R. Moldover, Charles E. Gibson
The International Temperature Scale of 1990 (ITS90) is defined from 0.65 K upwards to the highest temperature measurable by spectral radiation thermometry, the

NIST Mechanisms for Disseminating Measurements

Author(s)
T E. Gills, S Dittmann, Georgia L. Harris, C S. Brickenkamp, J R. Rumble, N M. Trahey
The National Bureau of Standards, predecessor of the National Institute of Standards and Technology, began providing the Nation with measurement artifacts and

The Ampere and Electrical Standards

Author(s)
Randolph Elmquist, Marvin E. Cage, Yi-hua D. Tang, Anne-Marie Jeffery, Joseph R. Kinard Jr., Ronald F. Dziuba, Nile M. Oldham, Edwin R. Williams
This paper describes some of the major contributions to metrology and physics made by the NIST Electricity Division, which has existed since 1901. It was one of

Accelerating Scientific Discovery through Computation and Visualization

Author(s)
James S. Sims, John G. Hagedorn, Peter M. Ketcham, Steven G. Satterfield, Terence J. Griffin, William L. George, H A. Fowler, B A. am Ende, Howard Hung, Robert B. Bohn, John E. Koontz, Nicos Martys, Charles E. Bouldin, James A. Warren, D L. Feder, Charles W. Clark, Bernard J. Filla, Judith E. Terrill
The rate of scientific discovery can be accelerated through computation and visualization. This acceleration results from the synergy of expertise, computing

Material Properties of Titanium Diboride

Author(s)
R G. Munro
The physical, mechanical, and thermal properties of polycrystalline TiB 2 are reviewed with an emphasis on the significant dependence of the properties on the

Improved Near-Infrared Spectral Responsivity Scale

Author(s)
Ping-Shine Shaw, Thomas C. Larason, R Gupta, Steven W. Brown, Keith R. Lykke
A cryogenic radiometer-based system was constructed at the National Institute of Standards and Technology (NIST) for absolute radiometric measurements to

Computation of Fresnel Integrals. II

Author(s)
Klaus Mielenz
This paper describes an improved method for computing Fresnel integrals with an accuracy better than 1X10 -9, based on a known approximate formula for a

Capability in Rockwell C Scale Hardness

Author(s)
Walter S. Liggett Jr, Samuel R. Low III, David J. Pitchure, Jun-Feng Song
To determine the capability of a system for Rockwell C scale hardness, one must make test measurements, which can be planned and interpreted as explained in

Numerical Evaluation of Diffraction Integrals

Author(s)
Klaus Mielenz
This paper describes a simple numerical integration method for diffraction integrals which is based on elementary geometrical considerations of the manner in