Titlebook: Infrared Radiation; A Handbook for Appli Mikaél’ A. Bramson Book 1968 Springer Science+Business Media New York 1968 development.growth.holo

馬賽克

赤字

不容置疑

Nonblackbody Radiationking it, “black” cloth slightly over 1%, and “black” velvet 0.4%. A fundamental property of a perfectly black body is that its shape, material, and surface characteristics have no bearing whatever on its radiating and absorbing characteristics.

apropos

寵愛

Radiative Heat Exchange in a Nonabsorbing Mediumadiation. In this event the radiation will be nonuniform and anisotropic. It will represent the sum of the thermal radiation emitted by all the bodies. Unlike the case for equilibrium radiation, the radiant emittance will now depend on the properties and temperature of all the bodies and the medium occupying the space between the bodies [1].

overwrought

青少年

小隔間

A簡潔的

Application of the Planck FormulaIn Chapter II it was shown that the various spectral scales are all essentially equivalent. It therefore suffices to examine the Planck formula in terms of the absolute temperature and a wavelength scale, for instance.

CRANK

Determination of EmissivitySince the emissivity of most materials is determined experimentally, we must discriminate clearly between the characteristics of the various methods for measuring the emissivity, and examine the procedural aspects of each. A description of equipment for conducting the experiments does not, however, fall within the purview of this book.