- Rayleigh function
- = dissipation functionдиссипативная функция Рэлея
Теория механизмов и машин. Терминология: Учеб. пособие. - М.: Изд-во МГТУ им. Н.Э. Баумана. Н.И. Левитский, Ю.Я. Гуревич, В.Д. Плахтин и др.; Под ред. К.В. Фролова. . 2004.
Rayleigh function
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Rayleigh fading — is a statistical model for the effect of a propagation environment on a radio signal, such as that used by wireless devices.Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also… … Wikipedia
Rayleigh flow — refers to diabatic flow through a constant area duct where the effect of heat addition or rejection is considered. Compressibility effects often come into consideration, although the Rayleigh flow model certainly also applies to incompressible… … Wikipedia
Rayleigh distribution — Probability distribution name =Rayleigh type =density pdf cdf parameters =sigma>0, support =xin [0;infty) pdf =frac{x expleft(frac{ x^2}{2sigma^2} ight)}{sigma^2} cdf =1 expleft(frac{ x^2}{2sigma^2} ight) mean =sigma sqrt{frac{pi}{2 median… … Wikipedia
Rayleigh length — Gaussian beam width w(z) as a function of the axial distance z. w0: beam waist; b: confocal parameter; zR: Rayleigh length; Θ: total angular spread … Wikipedia
Rayleigh scattering — This article is about the optical phenomenon. For the magnetic phenomenon, see Rayleigh law. For the stochastic distribution, see Rayleigh distribution. For the wireless multipath propagation model, see Rayleigh fading. Rayleigh scattering causes … Wikipedia
Rayleigh quotient — In mathematics, for a given complex Hermitian matrix A and nonzero vector x, the Rayleigh quotient R(A, x) is defined as::{x^{*} A x over x^{*} x}For real matrices and vectors, the condition of being Hermitian reduces to that of being symmetric,… … Wikipedia
Rayleigh number — In fluid mechanics, the Rayleigh number for a fluid is a dimensionless number associated with buoyancy driven flow (also known as free convection or natural convection). When the Rayleigh number is below the critical value for that fluid, heat… … Wikipedia
Rayleigh ratio — The Rayleigh ratio is a quantity used to characterize the scattered intensity as a function of scattering angle q, and is defined as:R( heta ) = frac{I heta r^2}{I f V}where I is the intensity of theincident radiation, I heta is the total… … Wikipedia
Dirac delta function — Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually used to specify the value of any multiplicative constant, which will give the area under the function. The other convention… … Wikipedia
Bessel function — In mathematics, Bessel functions, first defined by the mathematician Daniel Bernoulli and generalized by Friedrich Bessel, are canonical solutions y(x) of Bessel s differential equation: for an arbitrary real or complex number α (the order of the … Wikipedia
Putnam-Norden-Rayleigh Curve — In the study of software project scheduling, the Putnam Norden Rayleigh Curve, also known as the PNR Curve, is a graphical curve derived from a mathematical equation that indicated the relationship between applied effort and delivery time in… … Wikipedia
