visible reflection
1.The products obtained under different conditions were characterized by means of X-ray diffraction(XRD) 、 X-ray photoelectron spectroscopy(XPS) and ultraviolet-visible diffuse reflection spectrum(UV-Vis DRS).
2.A number of techniques such as Laser Raman spectroscopy ( LRS ), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflection spectroscopy ( DRS ), BET and pore volume distribution measurement (PVD)have been employed to investigate the effects of fluoride on the states of nickel and tungsten in NiW/γ-Al2O3 catalysts.
3.(2)To reflect the whole visible spectrum by Bragg reflection, Δn of the liquid crystals in plane alignment state should exceed 0.6;
4.Through the absorption of UV and reflection of visible light, fluorescent brightening agents(FBA) can enhance the whiteness and brightness of fabrics.
5.a luminous tract in the sky; a reflection of sunlight from cosmic dust in the plane of the ecliptic; visible just before sunrise and just after sunset.
6.Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) level-lA visible image is executed atmospheric correction using two atmospheric radiative transfer model, 6S(Second Simulation of Satellite Signal in the Solar Spectrum) and SBDART (Santa Barbara DISORT Atmospheric Radiative Transfer). The plane-parallel atmospheric model is validated in the high-latitude Antarctica.
