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Sed (other)
sed is a Unix utility for processing text. Sed or SED may also refer to: Science and technology * Spectral energy distribution, of an astronomical source * Stochastic electrodynamics, in quantum mechanics * ''Sedirea'' (''Sed.''), a genus of orchids *Stripping Enhanced Distillation, a method for distillation Medicine * Selective eating disorder or avoidant/restrictive food intake disorder * Spondyloepiphyseal dysplasia congenita, an inherited genetic bone disorder * Erythrocyte sedimentation rate (sed rate), a haematology test Technology, engineering and computing * Surface-conduction electron-emitter display, a flat-panel display technology * DEC SED (text editor), for some DEC operating systems * Self-encrypting device, an encrypting hard drive Organisations * Socialist Unity Party of Germany (german: Sozialistische Einheitspartei Deutschlands, links=no), East German communist party * Swiss Seismological Service (german: Schweizerische Erdbebendienst, links=no) Education * Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectral Energy Distribution
A spectral energy distribution (SED) is a plot of energy versus frequency or wavelength of light (not to be confused with a 'spectrum' of flux density vs frequency or wavelength). It is used in many branches of astronomy to characterize astronomical sources. For example, in radio astronomy they are used to show the emission from synchrotron radiation, free-free emission and other emission mechanisms. In infrared astronomy, SEDs can be used to classify young stellar objects. Detector for spectral energy distribution The count rates observed from a given astronomical radiation source have no simple relationship to the flux from that source, such as might be incident at the top of the Earth's atmosphere. This lack of a simple relationship is due in no small part to the complex properties of radiation detectors. These detector properties can be divided into *those that merely attenuate the beam, including *#residual atmosphere between source and detector, *#absorption in the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
