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vances in both the technology and cost of controllers have enabled the commercial introduction of machine tools with a parallel configuration of the positioning
Many electromagnetic measurements are based on the relationship between dissipation and fluctuations. As measurement frequencies increase and dimensional scales
Michael Forbes, James F. Lawrence, Yu Lei, Raghu N. Kacker, D. Richard Kuhn
Covering arrays are structures for well-representing extremely large input spaces and are used to efficiently implement blackbox testing for software and
John G. Hagedorn, Judith E. Terrill, Adele P. Peskin, James J. Filliben
We present methods for measuring errors in the rendering of three-dimensional points, line segments, and polygons in pixel-based computer graphics systems. We
James S. Sims, John G. Hagedorn, Steven G. Satterfield, Terence J. Griffin, William L. George, Howard Hung, John T. Kelso, Thomas M. Olano, Adele P. Peskin, Judith E. Terrill, Garnett W. Bryant, Jose G. Diaz
This is the third in a series of articles that describe, through examples, how the Scientific Applications and Visualization Group (SAVG) at NIST has utilized
Gauge blocks have been the primary method for disseminating length traceability for over 100 years. Their longevity was based on two things: it was relatively
J C. Chiao, Julian M. Goldman, David A. Heck, Peter Kazanzides, William J. Peine, James B. Stiehl, Dwight Yen, Nicholas Dagalakis
With rapid advances in meso, micro and nano scale technology devices and electronics a new generation of advance medical devices is emerging, which promises
The Domain Name System (DNS) is the global lookup service for network resources. To protect DNS information, the DNS Security Extensions (DNSSEC) has been
The density of liquid toluene has been measured over the temperature range -60 °C to 200 °C with pressures up to 36 MPa. A two-sinker hydrostatic-balance
Recent observations at the National Institute of Standards and Technology indicate that the Ar I wavenumbers reported by Whaling et al. [J. Res. Natl. Inst
Robert R. Owings, Fabio C. Da Silva, David P. Pappas
This paper presents the results of an interlaboratory comparison and development of a magnetic moment reference material. The comparison was between the
A method is proposed for measuring the fluorescence quantum yield (QY) using a commercial spectrophotometer with a 150 mm integrating sphere (IS) detector. The
Holmium oxide glass has been used as a wavelength standard for over four decades. These standards have shown very little variation from batch to batch and from
A method for establishing electronic traceability, or e-traceability, of customer measurements to NIST high-dose measurement standards through the use of a
S Sholom, C M. O'Brien, E Bakhanova, V Chumak, Marc F. Desrosiers, A Bouville
Dose profiles in teeth have been experimentally and theoretically studied for different energies and geometries of incident X- and gamma-rays. The experiments
S Sholom, Marc F. Desrosiers, A Bouville, N Luckyanov, V Chumak, S L. Simon
Determination of external dose to teeth of inhabitants of settlements near the Semipalatinsk Nuclear Test Site (SNTS) was conducted using the EPR dosimetry
The performance of finned tube heat exchangers is greatly affected by the distribution of the air that passes through it. The air side velocity distribution is
Xiaoyu X. Li, Thomas Scott, Christopher L. Cromer, David Cooper, Steven Comisford
We report the results of a high-energy laser calorimeter comparison conducted by the National Institute of Standards and Technology (NIST), Boulder, Colorado
We consider an arbitrary mapping for , some number of quantum bits. Using calls to a classical oracle evaluating and an classical bit data store, it is possible
This paper presents a combined physical and electrical post-fabrication method for determining the thicknesses of the various layers in a commercial 1.5-um
John G. Hagedorn, Joy Dunkers, Steven G. Satterfield, Adele Peskin, John T. Kelso, Judith E. Terrill
This paper describes a set of tools for performing measurements of objects in a virtual reality based immersive visualization environment. These tools enable
Jon Geist, Jayna J. Shah, Mulpuri Rao, Michael Gaitan
Simple sets of equations have been derived to describe the absorption of microwave power in threeregion, lossy transmission lines in terms of S-parameter
Raman measurements are proposed as a non-destructive method for wafer acceptance tests of carrier density. The interpretation of Raman spectra to determine the
This paper presents a mathematical model of photodegradation of fluorophores passing through a laser beam. The beam is focused on the sample and thus the power
Uncertainties in source color measurements with a tristimulus colorimeter are estimated for calibration factors determined based on a known source spectral
The boundary-shape formalism of Morse and Ingard is applied to the acoustic modes of a deformed spherical resonator (quasisphere) with rigid boundaries. For
Michael Brownstein, Robert A. Hoffman, Richard Levenson, Thomas E. Milner, Marla L. Dowell, Paul A. Williams, Grady S. White, Adolfas Gaigalas, Jeeseong C. Hwang
In order to maintain the rapid advance of biophotonics in the U.S. and to enhance our competitiveness worldwide, key measurement tools must be in place. As a