# Rayleigh equation

## Ray·leigh e·qua·tion

(rā'lē),
a ratio of red to green required by each observer to match spectral yellow.
Synonym(s): Rayleigh test

## Rayleigh,

Lord John W.S., English physicist and Nobel laureate, 1842-1919.
rayl - unit of acoustic impedance.
Rayleigh equation - a ratio of red to green required by each observer to match spectral yellow. Synonym(s): Rayleigh test
Rayleigh test - Synonym(s): Rayleigh equation

## Rayleigh equation

A colour equation representing a match of yellow (usually 589 nm) with a mixture of red (usually 670 nm) and green (usually 535 nm). It is used to differ-entiate certain types of colour deficiencies. The anomaloscope is built on this principle. See defective colour vision.
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References in periodicals archive ?
In this present paper, we investigate the existence and uniqueness of the periodic solutions of the following Rayleigh equation with two delays
As we know, Rayleigh equation can be derived from many fields, such as physics, mechanics and engineering technique fields.
In this direction, many researchers (see [4-9]) continued to discuss the Rayleigh equation and got some new results on the T-periodic solutions of Eq.
Consider the following Rayleigh equation with two delays
1) is a very simple version of Rayleigh equation with two delays, all the results in [1,3-9] and the references therein cannot be applicable to Eq.
New results on the periodic solutions for a kind of Rayleigh equation with two deviating arguments, Math.
Peng, Periodic solutions for p-Laplacian neutral Rayleigh equation with a deviating argument, Nonlinear Analysis (2007), doi:10.
15]N of the residual nitrate increases in proportion to the logarithm of the residual nitrate fraction (Kendall 1998), which can be expressed using the classic Rayleigh equation (Mariotti et al.
Using the Rayleigh equation we calculated a linear relationship between N[O.

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