| ultraviolet |
(UV) The invisible part of the light spectrum whose rays have wavelengths shorter than the violet end of the visible spectrum and longer than X rays. UVA and UVB light are harmful to your eyes and skin.
출처: www.allaboutvision.com/resources/glossary-3.htm
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| ultracentrifugation |
technique for the sedimentation of particles subjected to extremely rapid rotation.
출처: www.genethon.fr/php/layout.php
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| ultrafiltration |
A process for filtering water by forcing it through a screen with very small pores. Ultrafiltration falls between reverse osmosis and microfiltration in terms of the size of particles removed, with ultrafiltration removing particles in the 0.002 to 0.1 micron range.
출처: www.hc-sc.gc.ca/food-aliment/friia-raaii/frp-pra/w...
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| ultraviolet radiation |
electromagnetic radiation in the wavelength range from 100 to 400 nanometers. It is shorter and more energetic than visible light but has essentially the same composition. Depending on its wavelength, it penetrates skin to different levels (more deeply in the case of UVA than UVB) and triggers different biological effects.
출처: www.hc-sc.gc.ca/hecs-sesc/ccrpb/publication/guidel...
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| ultraviolet radiation |
The energy range just beyond the violet end of the visible spectrum. Although ultraviolet radiation constitutes only about 5 percent of the total energy emitted from the sun, it is the major energy source for the stratosphere and mesosphere, playing a dominant role in both energy balance and chemical composition.
출처: www.srh.weather.gov/srh/jetstream/append/glossary_...
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