free-space diagram

См. также в других словарях:

• directivity diagram of laser radiation in free space — kryptinė lazerio spinduliuotės diagrama laisvojoje erdvėje statusas T sritis radioelektronika atitikmenys: angl. directivity diagram of laser radiation in free space vok. Freiraumlaserrichtdiagramm, n; Laserrichtdiagramm im freien Raum, n rus.… …   Radioelektronikos terminų žodynas

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• Free Boolean algebra — In abstract algebra, a branch of mathematics, a free Boolean algebra is a Boolean algebra 〈 B , F 〉, such that the set B (called the carrier ) has a subset whose elements are called generators. The generators satisfy the following properties:… …   Wikipedia

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• Feynman diagram — The Wick s expansion of the integrand gives (among others) the following termNarpsi(x)gamma^mupsi(x)arpsi(x )gamma^ upsi(x )underline{A mu(x)A u(x )};,whereunderline{A mu(x)A u(x )}=int{d^4pover(2pi)^4}{ig {mu u}over k^2+i0}e^{ k(x x )}is the… …   Wikipedia