spectral moment
21Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …
22List of mathematics articles (S) — NOTOC S S duality S matrix S plane S transform S unit S.O.S. Mathematics SA subgroup Saccheri quadrilateral Sacks spiral Sacred geometry Saddle node bifurcation Saddle point Saddle surface Sadleirian Professor of Pure Mathematics Safe prime Safe… …
23Defining equation (physics) — For common nomenclature of base quantities used in this article, see Physical quantity. For 4 vector modifications used in relativity, see Four vector. Very often defining equations are in the form of a constitutive equation, since parameters of… …
24Mixture model — See also: Mixture distribution In statistics, a mixture model is a probabilistic model for representing the presence of sub populations within an overall population, without requiring that an observed data set should identify the sub population… …
25Raziel (Legacy of Kain) — See Raziel (disambiguation) for other meanings of Raziel.General VG character width= 200px name= Raziel caption=The Wraith Raziel as he appeared in promotional art for . series= Legacy of Kain firstgame= creator= artist= voiceactor=Michael Bell… …
26analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …
27Introduction to quantum mechanics — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Quantum mechanics. Quantum mechanics …
28GALAXIES — L’observation à l’œil nu d’un ciel constellé d’étoiles montre que celles ci ne sont pas réparties au hasard: elles tendent à se regrouper en une longue écharpe laiteuse qui parcourt la voûte céleste d’un bord à l’autre de l’horizon, et que nos… …
29Vilgax — Personnage de fiction apparaissant dans Ben 10 Alias Face de poulpe (surnom) Origine Vilgaxia …
30White noise — is a random signal (or process) with a flat power spectral density. In other words, the signal contains equal power within a fixed bandwidth at any center frequency. White noise draws its name from white light in which the power spectral density… …
