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emittance |
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emittance [i′mit·əns]
(thermodynamics) The power radiated per unit area of a radiating surface. Also known as emissive power; radiating power. emittance The ratio of radiant flux emitted by a material to that emitted by a blackbody at the same temperature, under the same conditions. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The relative emission spectrum of the LED source was measured with a calibrated CVI-monochromator (Digikrom 480) and was found to lie within the range 430-520 nm with its spectral emittance centered at 470 nm. Michael Van De Mark, director of the Missouri S&T Coatings Institute at the Missouri University of Science and Technology, believes that advances in technology for architectural coatings could some day be driven by legislation targeting levels of emittance and reflectivity for the exterior walls of buildings. [ILLUSTRATION OMITTED] DONYA DOUGLAS Instrument Systems Branch Associate Head NASA Douglas is one of the lead developers of variable emittance coatings, two-phase systems, spacecraft and instrument thermal design and control, and instrument systems engineering. |
emittance |
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