absorptivity वाक्य
उदाहरण वाक्य
मोबाइल
- For example, white paint is quoted as having an absorptivity of 0.16, while having an emissivity of 0.93.
- :: : : " Attenuated " is a better word than " blocked ", and said chart shows absorptivity versus photon energy.
- For manufacturing solar cells, silicon has relatively low absorptivity for the sunlight meaning about 100 micrometers of Si is needed to absorb most sunlight.
- In contrast, the absorptivity of GaAs is so high that only a few micrometers of thickness are needed to absorb all of the light.
- On occasions when the material is in thermodynamic equilibrium or in a state known as local thermodynamic equilibrium, the emissivity and absorptivity become equal.
- The emissivity of a material is tremendously frequency dependent, and is related to absorptivity ( of which shiny metal surfaces have very little ).
- Longitudinal circulation, however, is a result of the heat capacity of water, it's absorptivity, and it's mixing.
- Thus, for longwave radiation, one symbol ? denotes both the emissivity and absorptivity of the atmosphere, for any stream of infrared radiation.
- Medium-to-dark, colors with high absorptivity, should be used on surfaces of thermal mass elements that will be in direct sunlight.
- Tabor experimented with various coatings to optimize the absorptivity of solar energy, with minimizing the re-radiation, or emissivity of the heat absorbed.
- These monoliths are shown to be better for sensing molecules with smaller molar absorptivity, which are molecules that don t absorb into something very well.
- The model assumes that the average emissivity ( absorptivity ) is identical for either of these streams of infrared radiation, as they interact with the atmosphere.
- The total energy would be divided into three groups, they are called absorptivity ( ? ), reflectivity ( ? ) and transmissivity ( t ).
- If the radiating body and its surface are in thermodynamic equilibrium and the surface has perfect absorptivity at all wavelengths, it is characterized as a black body.
- In addition, c-BN consists of only light elements and has low X-ray absorptivity, capable of reducing the X-ray absorption background.
- The water absorption of aluminium and palladium becomes an unacceptable source of outgassing, and even the absorptivity of hard metals such as stainless steel or titanium must be considered.
- This is because the absorptivity is averaged with weighting for the solar spectrum, while the emissivity is weighted for the emission of the paint itself at normal ambient temperatures.
- For investigation of Kirchhoff's law of thermal radiation the notions of absorptivity and emissivity are necessary, and they rest on the idea of one-way radiation.
- However, it is typical in engineering to assume that a surface's spectral emissivity and absorptivity do not depend on wavelength, so that the emissivity is a constant.
- Where static air settles above an area of ground in the absence of wind, the absorptivity and specific heat of the ground strongly influence the temperature that the trapped air attains.
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