Flow structure of a rotating liquid after motion of a body in it

Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 6, pp. 113–117, November–December, 1988.     

Localization of pulse signal in randomly layered medium

It is shown that in a medium with randomly layered inhomogeneities, a nonstationary pulse signal emitted by a plane (one-dimensional) source is localized in a closed region of space due to the interference of multiply scattered fields. A wave packet emitted by a point source in such a medium is channeled along the layers.Institute of Radio Physics and Electronics, Academy of Sciences of Ukraine. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 35, Nos. 3, 4, pp. 246–251, March–April, 1992.     

Method of constructing shock compression diagrams for foam plastics

A method is proposed for constructing shock compression diagrams for foam plastics based on experimental determination of the residual deformation of a specimen after impact with a rigid obstacle. An approximate diagram is obtained for expanded polystyrene PS-1 of initial density 0.21 g/cm³, and the dynamic yield strength is estimated.Moscow. Translated from Mekhanika Polimerov, Vol. 9, No. 3, pp. 566–568, May–June, 1973.