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Journal of Research of the National Institute of Standards and Technology articles from July 2008
Journal containing information on metrology in physics, chemistry, engineering, and computer sciences.
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Journal of Research of the National Institute of Standards and Technology archives from July 2008
Sources of differences in on-orbital total solar irradiance measurements and description of a proposed laboratory intercomparison.
July 1, 2008... There is a 5 W/[m.sup.2] (about 0.35 %) difference between current on-orbit Total Solar Irradiance (TS1) measurements. On 18-20 July 2005, a workshop was held at the National Institute of Standards and Technology (NIST) in Gaithersburg,...
Bilateral optical power meter comparison between NIST and CENAM.(National Institute of Standards and Technology and Centro Nacional De Metrologia)
July 1, 2008... We describe the results of a comparison of reference standards between the National Institute of Standards and Technology (NIST-USA) and Centro Nacional De Metrologia (CENAM-Mexico). Open beam (free field) and optical-fiber-based measurements...
Web Thermo Tables--an on-line version of the TRC Thermodynamic Tables.(Thermodynamics Research Center)(Report)
July 1, 2008... It has long been understood that availability of thermophysical and thermochemical property data is vital to scientific research and industrial design. For over 65 years, the Thermodynamics Research Center (TRC) has been publishing tables of...
Methods for quantifying and characterizing errors in pixel-based 3D rendering.(Report)
July 1, 2008... We present methods for measuring errors in the rendering of three-dimensional points, line segments, and polygons in pixel-based computer graphics systems. We present error metrics for each of these three cases. These methods are applied to...
Stiffening of the extrapulmonary arteries from rats in chronic hypoxic pulmonary hypertension.(Clinical report)
July 1, 2008... Changes in the compliance properties of large blood vessels are critical determinants of ventricular afterload and ultimately dysfunction. Little is known of the mechanical properties of large vessels exhibiting pulmonary hypertension,...