reflectance

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re·flec·tance

(rē-flek'tăns),
A measure of reflected acoustic energy as a function of impedance, as in the middle ear.

re·flec·tance

(rĕ-flek'tăns)
A measure of reflected acoustic energy as a function of immitance, as in middle ear impedance.

reflectance

(rē-flek′tăns)
The fraction of total light reflected after it hits a surface, and the angle at which it is reflected. It is the inverse of absorbance.

diffuse reflectance

The reflectance of light from a rough or nonpolished surface in which the radiant energy tends to scatter. The angle of reflectance does not equal the angle of incidence.

spectral reflectance

The reflectance of light from a polished surface in which the angle of reflectance equals the angle of incidence.

reflectance 

A measure of reflection equal to the ratio of reflected luminous flux Ε′ to the incident luminous flux Ε, i.e. ρ = Ε′/Ε. Syn. reflection factor. See Fresnel's formula.
References in periodicals archive ?
Similarly, the highest frequencies of radar reflectivity occur in bins between -25 and -5 dBZ at heights between 7 and 12 km; these frequencies correspond to the long-lasting anvil clouds seen after 0600 UTC in Fig.
Elevated high reflectivity is normally associated with high-instability weather regimes and is a sign that a very strong updraft is lofting the precipitation production process to high altitudes.
In normal dogs, the ophthalmoscopic and fundoscopic examinations showed normal reflectivity of tapetal region, normal vascular size and normal coloration of tapetal fundus (Fig.
MMD has collected the reflectivity data in two different types which is Composite Plan Position Indicator, CompPPI (make from 2 to 4 PPI scan), and Volumetric data (contain 15 PPI scans at 0.
Moreover, formulation of typical waterproof coatings to improve their reflectivity value will also be discussed, showing a close relationship between [TiO.
Experimental results for the reflectivity of the perforated and non-perforated, multiple-layer, planar, rice-husk microwave absorbers were obtained.
We know that for un-chirped uniform gratings both the reflectivity and the delay are symmetric about the center wavelength.
Figure 2 show the variation of reflectivity with normalized frequency ([omega] a/c) at various angle of incidence.
Improving the reflectivity of traffic signage is important to the safety of drivers.
As the Earth warms and snow and ice melts, the reflectivity decreases, creating a feedback loop that leads to further warming.
Different strains of crops such as wheat have significantly different levels of reflectivity, say scientists.
Carbondale) compiles 18 essays by teacher educators in a variety of fields from the US and Europe who consider the role of teacher reflectivity in teacher performance, retention, student learning, and other aspects of education.