Modelling the Rayleigh match

Modelling the Rayleigh match.

We use the photopigment template of Baylor et al. (1987) to define the set of Rayleigh matches that would be satisfied by a photopigment having a given wavelength of peak sensitivity (lambda(max)) and a given optical density (OD). For an observer with two photopigments in the region of the Rayleigh primaries, the observer's unique match is defined by the intersection of the sets of matches that...

Analysis of Rayleigh match data with psychometric functions.

Color matches have been used for a variety of purposes, yet the psychometric properties of color-matching data have not been thoroughly investigated. A method is given for generating psychometric functions for the two ends of the color-matching range by use of a perceptual dimension for stimulus magnitude based on ratios of cone quantal catches. The analysis was applied to Rayleigh match data g...

Stochastic Modelling of Soccer Match Results

Diagnostic tests for normality, heteroscedasticity and structural stability are reported for an ordered probit model applied to an English league soccer match results data set. The unsystematic component in match results is found to be normal and homoscedastic, but the ordered probit model parameters reflecting relative team strengths are found to change significantly within the soccer season. ...

The Big Match and the Paris Match

Modelling Turbui~nt Mixing by Rayleigh-taylor Instability

Direct two-dimensional numerical simulation and experiments, in which small rocket motors accelerate a tank containing two fluids, have been used to investigate turbulent mixing by Rayleigh-Taylor instability at a wide range of density ratios. The experimental data obtained so far has been used to calibrate an empirical model of the mixing process which is needed to make predictions for complex...