Найдено: 7528
Phonon-phonon interaction in liquid helium
Phonon-phonon interaction in liquid helium
V.A. Zagrebnov
Moscow University Physics Bulletin 1971. 26. N 1. P. 54
An analysis is made of the effect of the phonon-phonon interaction at T = 0°K on the intrinsic energy of the phonon in the cubic approximation. The renormalized spectrum of ("dressed") phonons is found to be stable, as Landau and Khalatnikov concluded from a calculation of the viscosity of liquid helium.
Show AbstractTheory of systems having nonlinear elements with sharp characteristics
Theory of systems having nonlinear elements with sharp characteristics
A.N. Lagutkin and К.K. Likharev
Moscow University Physics Bulletin 1971. 26. N 1. P. 59
A method is proposed for writing abbreviated equations for oscillatory systems containing nonlinear elements whose characteristics are approximated by segments of curves. The method is based on a search for the approximate points at which the discontinuities occur.
Show AbstractRoot-trajectory determination of the stability with respect to various parameters
Root-trajectory determination of the stability with respect to various parameters
G.A. Bendrikov and A.M. Grigor'ev
Moscow University Physics Bulletin 1971. 26. N 1. P. 62
A method is described for evaluating various parameters of a linear system in terms of their effect on stability of the system.
Show AbstractCalculations of the amplitude characteristic for a subcritical n-GaAs amplifier
Calculations of the amplitude characteristic for a subcritical n-GaAs amplifier
Abdel Phattakh Khasan
Moscow University Physics Bulletin 1971. 26. N 1. P. 72
Effect of the 3- low-lying collective state on the structure of the Pb^208 dipole resonance
Effect of the 3- low-lying collective state on the structure of the Pb^208 dipole resonance
F.A. Zhivopistsev, Yu. Akbari, and V.A. El'tekov
Moscow University Physics Bulletin 1971. 26. N 1. P. 75
Electronic structure of excitons in alkali halide crystals and crystals of noble atoms
Electronic structure of excitons in alkali halide crystals and crystals of noble atoms
A.Ya. Goikhman
Moscow University Physics Bulletin 1971. 26. N 1. P. 77
Mapping the two-dimensional microscopic fields in a nontransmission electron microscope
Mapping the two-dimensional microscopic fields in a nontransmission electron microscope
N.N. Sedov
Moscow University Physics Bulletin 1971. 26. N 1. P. 79
SU(3) mass equations and classification of heavy hyperons
SU(3) mass equations and classification of heavy hyperons
V.S. Zamiralov
Moscow University Physics Bulletin 1971. 26. N 1. P. 82
Radiation by a charge moving along a helix in a transparent medium
Radiation by a charge moving along a helix in a transparent medium
A.B. Kukanov, G.A. Lavrova, and B.D. Orisa
Moscow University Physics Bulletin 1971. 26. N 1. P. 84