E.M. Sakharov and N.N. Lobanov

V.A. Dianova, V.N. Parygin, and A. Savenok

E.V. Stupochenko

Yu.V. Melikov and N.G. Chechenin

Angular distributions (planar shadows) are calculated on the assumption of a single event of scattering of nuclear reaction product particles by a crystallographic plane. The influence of the displacement of the compound nucleus from the crystal lattice site on the shapes of the angular distributions is analyzed.

V.N. Parygin, Kh. Gassab, and I.P. Smagin

An experimental study of a generator with an optical delay line in the feedback circuit is reported. The amplitude and frequency characteristics of the generator are studied at various lengths of the optical delay line. The possibility of using such a generator for distance measurement is indicated.

N.N. Bogolyubov, Jr. and V.N. Plechko

A many-particle model problem with four-fermian positive interaction and sources is considered. Asymptotically exact expressions were obtained for the free energy and many-term coalition functions. It is shown that the role of the interaction reduces to renormalization (weakening) of the sources in the thermodynamic limit.

V.V. Karpov, I.I. Minakova, and A.G. Fedoseev

The influence of the applied-voltage dependence of the transit angle on the autonomous - and synchronous-mode characteristics of delay master oscillators is examined. Amplitude curves and stability conditions are calculated for AD and reflex - klystron oscillators. Relations are developed for the synchronization band widths and amplitude increase in the synchronous mode as functions of transit angle and its self-modulation percentage in the presence of a parametric disturbance.

A.I. Gomonova and Yu.V. Ponomarev

The dissipation of mobile carriers accumulated in the I layer of a P-I-N photodiode after it is illuminated by strong light is considered. It is assumed that the recovery of the photodiode occurs at a constant back current flowing through the device. The results can be used to estimate the length of the carrier dissipation process at various intensities of the illumination preceding the dissipation.

V.P. Kandidov and S.A. Khristochevskii

The possibility of reducing the number of dynamic variables per partitioning element in investigating the natural vibrations of a cylindrical shell by the finite element method is considered. At a given number of degrees of freedom, the app roach used makes it possible to increase the number of partitioning elements.

B.S. Agrovskii, E.P. Anisimova, I.I. Ivlev, A.A. Speranskaya, and M.S. Tugeeva

The results of an instrumental study of the structure of flows oyer roughness whose dimensions are comparable to the scale of the flow itself are reported. The work was done under natural conditions on the Polomet River and in the laboratory, using a water channel and a wind tunnel. Averaged flow velocity profiles measured in various cross sections downstream from the roughness and spectral density functions of the absolute velocity fluctuations are presented. It is shown that when air and water flow over course roughness, separated flows form behind the latter.