Rayleigh


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Rayleigh

Lord, title of John William Strutt, 1842--1919, British physicist. He discovered argon (1894) with Ramsay and made important contributions to the theory of sound, the theory of scattering of radiation, etc. Nobel prize for physics 1904

rayleigh

[′rā·lē]
(optics)
A unit of brightness, used to measure the brightness of the night sky and aurorae, equal to 1010/4π quanta per square meter per second per steradian.
References in periodicals archive ?
5, we compare the BER performance of the P[U.sub.R] and S[U.sub.R] in the presence of Rayleigh and Nakagami-m fading channels for both m = 2 and m = 3.
The fading channel coefficients can be produced by Rician or Rayleigh distributions, based on the existence or the absence of the specular signal component or the line of sight [10-11].
Thus, the solutions of Reynolds lubrication equation for the pressure distribution, load capacity, and frictional coefficient were obtained through a relatively simple calculation and some detailed flow information on Rayleigh step bearing has been neglected [20].
Experimental studies of convection in a cubic cavity with a vertical temperature difference were performed in a wide range of Rayleigh numbers [10.sup.3]-[10.sup.9].
where [[omega].sub.i] is the circular frequency of mode i; [alpha] is the coefficient to define the mass proportional Rayleigh damping ratio [[xi].sub.[alpha]]; [beta] is used to define the stiffness proportional Rayleigh damping ratio [[xi].sub.[beta]].
Lewis, "Rayleigh waves-a progress report," European Journal of Physics, vol.
Here [P.sub.c] and [P.sub.t] are the Prandtl numbers and [R.sub.t] and [R.sub.c] are the thermal and solute Rayleigh numbers.
When a vertical-impact source is applied, the vertical and radial geophones record the vertical (Z) and radial (R) components of the generated Rayleigh waves.
(14) Figure 2(b) shows clear Love (top panels) and Rayleigh (bottom panels) wave propagations.
Marcatos and Pericleous have numerically studied the turbulent convection for Rayleigh numbers up [10.sup.16].
The obtained results have been presented graphically to illustrate the impact of various parameters on the Rayleigh number Ra as well as critical Rayleigh number [Ra.sub.c].
Rayleigh, "On the instability of jets," Proceedings of the London Mathematical Society, vol.