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Search Results: 1 - 10 of 233326 matches for " Savin V. T. "
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PROBLEMS OF ESTABLISHMENT OF INSTITUTION OF LIABILITY FOR BREAKAGE OF LABOR AGREEMENT PARTIES IN THE SCIENCE OF LABOR LAW Проблемы становления института материальной ответственности сторон трудового договора в науке трудового права
Savin V. T.
Polythematic Online Scientific Journal of Kuban State Agrarian University , 2013,
Abstract: Head of the of labor law chair Origins of an establishment of an institution of a liability for a breakage of labor law agreement of parties, its development in a legislation on labor and a science of labor law, posi-tions of scientists not admitting a complex of norms of the XI part of Labor Code of the RF by institution of a liability for breakage are researched in this article and an argumentation of an groundlessness of these opin-ions is cited as well
Microwave fidelity studies by varying antenna coupling
B. K?ber,U. Kuhl,H. -J. St?ckmann,T. Gorin,D. V. Savin,T. H. Seligman
Physics , 2010, DOI: 10.1103/PhysRevE.82.036207
Abstract: The fidelity decay in a microwave billiard is considered, where the coupling to an attached antenna is varied. The resulting quantity, coupling fidelity, is experimentally studied for three different terminators of the varied antenna: a hard wall reflection, an open wall reflection, and a 50 Ohm load, corresponding to a totally open channel. The model description in terms of an effective Hamiltonian with a complex coupling constant is given. Quantitative agreement is found with the theory obtained from a modified VWZ approach [Verbaarschot et al, Phys. Rep. 129, 367 (1985)].
The coexistence and evolution of attractors in the web map with weak dissipation
A. V. Savin,D. V. Savin
Physics , 2013,
Abstract: The dynamics of the web map with weak linear dissipation is studied. The evolution of the coexisting attractors and the structure of their basins while changing the dissipation and nonlinearity are revealed. It is shown that the structure of the basins remains the same when the dissipation and nonlinearity changes simultaneously.
Random band matrix approach to chaotic scattering: the average $S$-matrix and its pole distribution
D. V. Savin
Physics , 1995,
Abstract: Random band matrices relevant for open chaotic systems are introduced and studied. The scattering model based on such matrices may serve for the description of preequilibrium chaotic scattering. In the limit of a large number of open channels we calculate the average $S$-matrix and $S$-matrix's pole distribution which are found to reduce to those of the full matrix (GOE) case under proper renormalization of the energy scale and strength of coupling to the continuum.
On some properties of nearly conservative dynamics of Ikeda map and its relation with the conservative case
A. P. Kuznetsov,A. V. Savin,D. V. Savin
Physics , 2006, DOI: 10.1016/j.physa.2007.10.059
Abstract: The behavior of the well-known Ikeda map with very weak dissipation (so called nearly conservative case) is investigated. The changes in the bifurcation structure of the parameter plane while decreasing the dissipation are revealed. It is shown that when the dissipation is very weak the system demonstrates an "intermediate" type of dynamics combining the peculiarities of conservative and dissipative dynamics. The correspondence between the trajectories in the phase space in conservative case and the transformations of the set of initial conditions in the nearly conservative case is revealed. The dramatic increase of number of coexisting low-period attractors and the extraordinary growth of the transient time while the dissipation decreases have been revealed. The method of plotting a bifurcation trees for the set of initial conditions has been used to classify existing attractors by it's structure. Also it was shown that most of coexisting attractors are destroyed by rather small external noise, and the transient time in noisy driven systems increases still more. The new method of two-parameter analysis of conservative systems was proposed.
Heat Conduction in One-Dimensional chain of Hard Discs with Substrate Potential
O. V. Gendelman,A. V. Savin
Physics , 2003, DOI: 10.1103/PhysRevLett.92.074301
Abstract: Heat conduction of one-dimensional chain of equivalent rigid particles in the field of external on-site potential is considered. Zero diameters of the particles correspond to exactly integrable case with divergent heat conduction coefficient. By means of simple analytical model it is demonstrated that for any nonzero particle size the integrability is violated and the heat conduction coefficient converges. The result of the analytical computation is verified by means of numerical simulation in a plausible diapason of parameters and good agreement is observed
Resonance Scattering of Waves in Chaotic Systems
Y. V. Fyodorov,D. V. Savin
Physics , 2010,
Abstract: This is a brief overview of RMT applications to quantum or wave chaotic resonance scattering, focusing mainly on theoretical results obtained via non-perturbative methods starting from mid-nineties.
Mechanical control of heat conductivity in microscopic models of dielectrics
Alexander V. Savin,Oleg V. Gendelman
Physics , 2013,
Abstract: We discuss a possibility to control a heat conductivity in simple one-dimensional models of dielectrics by means of external mechanical loads. To illustrate such possibilities we consider first a well-studied chain with degenerate double-well potential of the interparticle interaction. Contrary to previous studies, we consider varying length of the chain with fixed number of particles. Number of possible energetically degenerate ground states strongly depends on the overall length of the chain, or, in other terms, on average length of the link between neighboring particles. These degenerate states correspond to mechanical equilibrium, therefore one can say that the transition between them mimics to some extent a process of plastic deformation. We demonstrate that such modification of the chain length can lead to quite profound (almost five-fold) reduction of the heat conduction coefficient. Even more profound effect is revealed for a model with single-well non-convex potential. It is demonstrated that in certain range of constant external forcing this model becomes "effectively"\ double-well, and has a multitude of possible states of equilibrium for the same value of the external load. Thus, the heat conduction coefficient can be reduced by two orders of magnitude. We suggest a mechanical model of a chain with periodic double-well potential, which allows control over the heat conduction. The models considered may be useful for description of heat transport in biological macromolecules and for control of the heat transport in microsystems.
Quantum Versus Classical Decay Laws in Open Chaotic Systems
Dmitry V. Savin,Valentin V. Sokolov
Physics , 1997, DOI: 10.1103/PhysRevE.56.R4911
Abstract: We study analytically the time evolution in decaying chaotic systems and discuss in detail the hierarchy of characteristic time scales that appeared in the quasiclassical region. There exist two quantum time scales: the Heisenberg time t_H and the time t_q=t_H/\sqrt{\kappa T} (with \kappa >> 1 and T being the degree of resonance overlapping and the transmission coefficient respectively) associated with the decay. If t_q < t_H the quantum deviation from the classical decay law starts at the time t_q and are due to the openness of the system. Under the opposite condition quantum effects in intrinsic evolution begin to influence the decay at the time t_H. In this case we establish the connection between quantities which describe the time evolution in an open system and their closed counterparts.
Heat conduction in 1D lattices with on-site potential
A. V. Savin,O. V. Gendelman
Physics , 2002, DOI: 10.1103/PhysRevE.67.041205
Abstract: The process of heat conduction in one-dimensional lattice with on-site potential is studied by means of numerical simulation. Using discrete Frenkel-Kontorova, $\phi$--4 and sinh-Gordon we demonstrate that contrary to previously expressed opinions the sole anharmonicity of the on-site potential is insufficient to ensure the normal heat conductivity in these systems. The character of the heat conduction is determined by the spectrum of nonlinear excitations peculiar for every given model and therefore depends on the concrete potential shape and temperature of the lattice. The reason is that the peculiarities of the nonlinear excitations and their interactions prescribe the energy scattering mechanism in each model. For models sin-Gordon and $\phi$--4 phonons are scattered at thermalized lattice of topological solitons; for sinh-Gordon and $\phi$--4 - models the phonons are scattered at localized high-frequency breathers (in the case of $\phi$--4 the scattering mechanism switches with the growth of the temperature).
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