| 1. | The most prominent are the surface reflectivity, absorptivity, and emissivity.
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| 2. | The absorptivity quoted in such cases is being calculated by:
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| 3. | Electrical gating and doping allows for adjustment of graphene s optical absorptivity.
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| 4. | The absorption cross-section is closely related to molar absorptivity and mass absorption coefficient.
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| 5. | At any given wavelength the absorptivity of the atmosphere will be equal to the emissivity.
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| 6. | In this case, Kirchhoff's law of equality of radiative absorptivity and emissivity holds.
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| 7. | Absorptivity, reflectivity, and emissivity of all bodies are dependent on the wavelength of the radiation.
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| 8. | For each species and wavelength, ? is a constant known as the molar absorptivity or extinction coefficient.
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| 9. | In some cases, emissive power and absorptivity may be defined to depend on angle, as described below.
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| 10. | Another test relies on reaction of the furfural with phloroglucinol to produce a colored compound with high molar absorptivity.
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