Spectral
71Spectral resolution — The spectral resolution or resolving power of a spectrograph, or, more generally, of a frequency spectrum, is a measure of its power to resolve features in the electromagnetic spectrum. It is usually defined byR = {lambdaoverDeltalambda}where… …
72Spectral Sound — Infobox record label name = Spectral Sound image bg = parent = founded = 2000 founder = Samuel Valenti IV defunct = distributor = genre = Techno Minimal techno Electropop country = US location = Ann Arbor, Michigan url = Spectral Sound is a… …
73Spectral index — In radio astronomy, the spectral index of a radio source can hint at its physical properties. The spectral index is calculated from an assumed power law dependence for flux given by Spropto u^alpha where S is flux and u is frequency. A more… …
74Spectral flux — This article is about the Digital signal processing term. For the term used in astronomy, which refers to a different measure, see Spectral flux density. Spectral flux is a measure of how quickly the power spectrum of a signal is changing,… …
75Spectral centroid — The spectral centroid is a measure used in digital signal processing to characterise an audio spectrum. It indicates where the center of mass of the spectrum is. Perceptually, it has a robust connection with the impression of brightness of a… …
76Spectral envelope — In remote sensing using a spectrometer, the spectral envelope of a feature is the boundary of its spectral properties, as defined by the range of brightness levels in each of the spectral bands of interest. References *… …
77Spectral Bat — Taxobox name = Spectral Bat status = LR/nt | status system = IUCN2.3 image width = 200px regnum = Animalia phylum = Chordata classis = Mammalia ordo = Chiroptera familia = Phyllostomidae genus = Vampyrum genus authority = Rafinesque, 1815 species …
78Spectral (album) — Infobox Album | Name = Spectral Type = studio Artist = Skyfire Released = May 10, 2004 Recorded = Genre = Melodic death metal Length = 43:21 Label = Arise Producer = Skyfire Reviews = Last album = Mind Revolution (2003) This album = Spectral… …
79Spectral flux density — In spectroscopy, spectral flux density is the quantity that describes the rate at which energy transferred by electromagnetic radiation is received from a source, per unit area facing the source, per unit wavelength range. In SI units it is… …
80spectral concentration of radiant energy density — spektrinis spinduliuotės energijos tankis statusas T sritis Standartizacija ir metrologija apibrėžtis Pasirinktosios spektro dalies vienetinio dažnio ar bangos ilgio intervalo vidutinė spinduliuotės energijos vertė. atitikmenys: angl. spectral… …
