The research showed that reflectance and luminosity of fire escape signage is affected by light refraction in smoke conditions.
An average of ten reflectance spectra was collected for each target surface.
Using fluid inclusion and vitrinite reflectance data, heat flows will be modeled which are consistent with structures inferred from seismic sections.
The sum of these two coefficients is always one. a+r = 1 Light colored smooth and shiny surfaces tend to have a higher reflectance.
Raman spectroscopy, attenuated total reflectance FTIR, and proton NMR were used.
This usually means the measurement of spectral transmittance, spectral reflectance, spectral radiance factor or spectral fluorescence.
All systems record an average reflectance for each pixel, such that areas of small habitats can give inaccurate data.
On advice from members of the Advisory Panel, the presentation was black print on low surface reflectance yellow paper.
Thus ground reflectance does not influence the values given.
Total Reflectance Measurements are made using either a scanning spectrophotometer fitted with an integrating sphere accessory, or a diode array spectrophotometer.
Examples include measuring the total transmittance and reflectance or by measuring the radial spatial distribution.
Because of large window area and high reflectance of room surfaces, daylight on the ground floor is more uniform and diffuse.
Use the reflectance curves illustrating the spectral response patterns of these two categories to help explain your answer.
Absolute reflectance was calculated by ratioing the collected target and reference spectra.
Daily variations in reflectance factors were quantified in relation to changes in the solar zenith angle, applying the modified Walthall et al.
If is the local unit surface normal, and the global light source direction, then the reflectance function is given by.
We also have a Black Glass standard (0% Reflectance in 0/45 Geometry).
This is done with a VW specular reflectance accessory.