59 research outputs found
Nonlinear waves of nuclear density
Nonlinear excitations of nuclear density are considered in the framework of
semiclassical nonlinear nuclear hydrodynamics. Possible types of stationary
nonlinear waves in nuclear media are analysed using Nonlinear Schroedinger
equation of fifth order and classified using a simple mechanical picture. It is
shown that a rich spectrum of nonlinear oscillations in one-dimensional nuclear
medium exist.Comment: 18 pages, 5 figure
Cherenkov-like shock waves associated with surpassing the light velocity barrier
The effects arising from accelerated and decelerated motion of a point charge
inside a medium are studied. The motion is manifestly relativistic and may be
produced by a constant uniform electric field. It is shown that in addition to
the bremsstrahlung and Cherenkov shock waves, the electromagnetic shock wave
arises when the charge particle velocity coincides with the light velocity in
the medium. For the accelerated motion this shock wave forming an indivisible
entity with the Cherenkov shock wave arrives after the arrival of the
bremsstrahlung shock wave. For the decelerated motion the above shock wave
detaches from the charge at the moment when its velocity coincides with the
light velocity in the medium. This wave existing even after termination of the
charge motion of the charge propagates with the light velocity in the medium.
It has the same singularity as the Cherenkov shock and is more singular than
the bremsstrahlung shock wave. The space-time regions, where these shock waves
exist, and conditions under which they can be observed are determined.Comment: 15 pages, 4 figures, to be published in Canadian J. Phy
On scission configuration in ternary fission
A static scission configuration in cold ternary fission has been considered
in the framework of two mean field approaches. The virial theorems has been
suggested to investigate correlations in the phase space, starting from a
kinetic equation. The inverse mean field method is applied to solve
single-particle Schredinger equation, instead of constrained selfconsistent
Hartree-Fock equations. It is shown, that it is possible to simulate
one-dimensional three-center system via inverse scattering method in the
approximation of reflectless single-particle potentialsComment: 11 pages, 1 figure, Fusion Dynamics at the Extremes, Int. Workshop,
Dubna, Russia, May 2000. To be published in World Scientifi
Ternary configuration in the framework of inverse mean-field method
A static scission configuration in cold ternary fission has been considered
in the framework of mean field approach. The inverse scattering method is
applied to solve single-particle Schroedinger equation, instead of constrained
selfconsistent Hartree-Fock equations. It is shown, that it is possible to
simulate one-dimensional three-center system via inverse scattering method in
the approximation of reflectless single-particle potentials.Comment: 8 pages, 1 figure, iopart.cls, to be published in Int.J.Mod.Phys.
Nuclear Model of Binding alpha-particles
The model of binding alpha-particles in nuclei is suggested. It is shown good
(with the accuracy of 1-2%) description of the experimental binding energies in
light and medium nuclear systems. Our preliminary calculations show enhancement
of the binding energy for super heavy nuclei with Z~120.Comment: 4 pages, 2 figures, Will be puplished in World Scientific as Procs.
Int. Symposium on Exotic Nuclei, "EXON - 2004", July 5 - 12, 2004, Peterhof,
Russi
Acmeological approach to the world of professional skill of teachers of professional education
The article considers the possibilities of acmeological approach in professional development of teachers of vocational educationВ статье рассматриваются возможности акмеологического подхода в повышении квалификации педагогов профессионального образовани
On stability of the neutron rich Oxygen isotopes
Stability with respect to neutron emission is studied for highly
neutron-excessive Oxygen isotopes in the framework of Hartree-Fock-Bogoliubov
approach with Skyrme forces Sly4 and Ska. Our calculations show increase of
stability around 40O.Comment: 5 pages, 3 figure
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