spectral moment

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• Spectral — Sz kayr, plus connu comme Spectral, est un personnage de fiction, un extra terrestre de la série animée de science fiction Ben 10. Originellement une des formes extra terrestres du héros, il s évade au cours de la série de l Omnitrix et devient… …   Wikipédia en Français

• Moment of inertia — This article is about the moment of inertia of a rotating object, also termed the mass moment of inertia. For the moment of inertia dealing with the bending of a beam, also termed the area moment of inertia, see second moment of area. In… …   Wikipedia

• Moment (mathematics) — Second moment redirects here. For the technique in probability theory, see Second moment method. See also: Moment (physics) Increasing each of the first four moments in turn while keeping the others constant, for a discrete uniform distribution… …   Wikipedia

• Hamburger moment problem — In mathematics, the Hamburger moment problem, named after Hans Ludwig Hamburger, is formulated as follows: given a sequence { αn : n = 1, 2, 3, ... }, does there exist a positive Borel measure μ on the real line such that:alpha n = int {… …   Wikipedia

• Atomic spectral line — In physics, atomic spectral lines are of two types: * An emission line is formed when an electron makes a transition from a particular discrete energy level of an atom, to a lower energy state, emitting a photon of a particular energy and… …   Wikipedia

• Descent Imager/Spectral Radiometer — Vue d artiste de la sonde Huygens sur Titan …   Wikipédia en Français

• Descent imager/spectral radiometer — Vue d artiste de la sonde Huygens sur Titan …   Wikipédia en Français

• Trigonometric moment problem — In mathematics, the trigonometric moment problem is formulated as follows: given a finite sequence { α 0, ... αn }, does there exist a positive Borel measure mu; on the interval [0, 2 pi; ] such that:alpha k = frac{1}{2 pi}int 0 ^{2 pi} e^{… …   Wikipedia

• Autocorrelation technique — The autocorrelation technique is a method for estimating the dominating frequency in a complex signal, as well as its variance. Specifically, it calculates the first two moments of the power spectrum, namely the mean and variance. It is also… …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• SPECTROSCOPIE - Spectroscopie moléculaire — L’objet de la spectroscopie moléculaire est l’étude du rayonnement émis, absorbé ou diffusé par une substance formée de molécules. Cette étude permet en particulier de relier la fréquence 益 du rayonnement émis ou absorbé, la variation de… …   Encyclopédie Universelle