@article{oai:kitami-it.repo.nii.ac.jp:00006268, author = {金山, 公夫}, issue = {1}, journal = {北見工業大学研究報告}, month = {Nov}, note = {application/pdf, It is a well known fact that apparent directional emittances of the nonmetallic flat surfaces agree with the calculation results from Fresnel's formula, but the emissive property of the nonmetallic random rough surface is not clearly given. In this paper the apparent directional emittances of such surfaces were computed using the same method as the calculation of the emittance on the metallic rough surface,and the apparent directional emittances on the rough surfaces,coated with asbestos tailing mixed paints,were measured. As a result the absolute values and the tendency of the measurements did well agree with the calculations.}, pages = {23--29}, title = {非金属ランダム粗面の指向ふく射率}, volume = {3}, year = {1971} }