refractivity


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refractivity

[‚rē‚frak′tiv·əd·ē]
(electromagnetism)
Some quantitative measure of refraction, usually a measure of the index of refraction.
The index of refraction minus 1.
References in periodicals archive ?
and Al-Ansari K., "Calculation of effective earth radius and point refractivity gradient in UAE," International Journal of Antennas and Propagation, Vol.
Since the refractivity data are obtained under the assumption of spherical symmetry, gradient information for the elements on the ray is not considered; therefore, the calculation accuracy is lower, especially in the vicinity of bad weather processes, and non-local operators are considered.
This is because the first derivative of refractivity index dramatically varieties with heights and the second derivative is nonzero.
(3) Take DACS-CO algorithm to estimate atmospheric refractivity parameters.
The molecular refractivity is higher for certain low heat release polymers such as polyimides, phthalonitriles, heavier elements like--chlorine or phosphorous containing polymers, as compared with vinyl-polymers, hence this descriptor has a negative contribution to HRC.
The results suggested that antibacterial activity is highly dependent on physicochemical parameters such as logP, Connolly solvent accessible surface area (SAS), molar refractivity (MR), ovality, and molecular weight (MW).
Medical refractometers designed for human samples use a reference scale based on human urine refractivity and USG.
The evaporation duct height (EDH) has been shown to be a good parameter to describe the profile of the modified refractivity versus height.
Hasegawa, "Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting Ti[O.sub.2] films," Journal of Physics D, vol.
In previous equations addressing levelling refraction, the equations were expressed in units of gradient refractivity as a function of the temperature gradient.