1. For this reason, calling the artificial methods of dissipating fogs and clouds drop removal methods, as has been done by many authors (see for example BSÉ, Vol. 30, p. 314) is not quite right. As a matter of fact the purpose of artificial cloud dissipation is not to remove the droplets as such, but only to reduce the scattering power, which can be done either by removing the drops or by making them larger.
2. The content of this paper was later repeated with some additions in the review by the same author [316].
3. The permissible noise level depends on the frequency of the highest component f
0 of the spectrum of the sound, and according to the accepted standards [110] has the following values:
4. Result; without cloth filter, in parentheses.
5. Result from sprinkling aerosol, in parentheses.