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Skobelev V.V.,Moscow State Industrial University
Journal of Experimental and Theoretical Physics | Year: 2011

The Fermi energy, pressure, internal energy, entropy, and heat capacity of completely degenerate relativistic electron gas are calculated by numerical methods. It is shown that the maximum admissible magnetic field on the order of 10 9 G in white dwarfs increases the pressure by a factor of 1.06 in the central region, where the electron concentration is ∼10 33 cm -3, while the equilibrium radius increases by approximately a factor of 1.03, which obviously cannot be observed experimentally. A magnetic field of ∼10 8 G or lower has no effect on the pressure and other thermodynamic functions. It is also shown that the contribution of degenerate electron gas to the total pressure in neutron stars is negligible compared to that of neutron gas even in magnetic fields with a maximum induction ∼10 17 G possible in neutron stars. The neutron beta-decay forbiddeness conditions in a superstrong magnetic field are formulated. It is assumed that small neutron stars have such magnetic fields and that pulsars with small periods are the most probable objects that can have superstrong magnetic fields. © Pleiades Publishing, Inc., 2011.


Skobelev V.V.,Moscow State Industrial University
Journal of Experimental and Theoretical Physics | Year: 2011

Temperature corrections to the basic thermodynamic functions calculated in our earlier publication [1] for a degenerate neutron gas in a magnetic field are determined taking into account the anomalous magnetic moment of a neutron. The heat capacity and entropy of the degenerate neutron gas, as well as the temperature correction to the magnetic susceptibility, are also calculated. Additional arguments supporting the effect of an increase in the pulse frequency of pulsars mentioned in the previous publication are formulated; the results of that publication are refined. © 2011 Pleiades Publishing, Ltd.


Skopinsky V.N.,Moscow State Industrial University | Berkov N.A.,Moscow State Industrial University
Journal of Pressure Vessel Technology, Transactions of the ASME | Year: 2013

In this research, a new criterion for determining the plastic limit load in shell intersections using elastic-plastic finite element analysis is presented. Using the proposed maximum criterion of the rate of the change of the relative plastic work (PW), a numerical procedure is described to define the plastic pressure. Also, a specific plastic work criterion is presented using a local deformation parameter. Results of comparisons with different criteria were considered for experimental models of cylindrical vessels with radial and nonradial (lateral) nozzles. A parametric study of the radial intersections of cylindrical shells under the internal pressure loading was performed to examine the influence of the diameter ratio on the plastic limit pressure on the basis of the proposed criteria. © 2013 by ASME.


Skobelev V.V.,Moscow State Industrial University
Journal of Experimental and Theoretical Physics | Year: 2012

The magnetization and magnetic susceptibility of a degenerate electron gas in a strong magnetic field in which electrons are located on the ground Landau level and the electron gas has the properties of a nonlinear paramagnet have been calculated. The paradoxical properties of the electron gas under these conditions-a decrease in the magnetization with the field and an increase in the magnetization with the temperature-have been revealed. It has been shown that matter under the corresponding conditions of neutron stars is a paramagnet with a magnetic susceptibility of χ ∼ 0.001. © Pleiades Publishing, Inc., 2012.


Stolyarov V.V.,Moscow State Industrial University
Bulletin of the Russian Academy of Sciences: Physics | Year: 2012

Specifics of the effects of electroplastic deformation, ion implantation (II), and ultrasonic treatment (UST) on the structure and characteristics of coarse-grained (CG) and ultrafine-grained (UFG) VT1-0, VT6 and TiNi titanium alloys are investigated. The introduction of pulse current during cold rolling promotes increased deformability and causes stress jumps during tension that result from phase transformations or the electroplastic effect (EPE). It is shown that EPE is a structurally sensitive property dependent on the size of grains. Methods of surface II and UST change the phase composition and lead to additional structural refinement in layers with a thickness of 0.1-10 microns. © Allerton Press, Inc., 2012.


Skobelev V.V.,Moscow State Industrial University
Russian Physics Journal | Year: 2013

Based on the concept of an initial Higgs Universe as one of the variants of a Multi-Universe with temperature distribution of massive nonrelativistic degenerate Higgs bosons over spaces with different dimensionalities and in line with their role as the mechanism of mass assignment within the framework of the law of conservation of energy, the ranges of values of the temperature and effective size of the Universe have been found, at which the superstring-generated quarks and also other massive particles of the Standard Model with nonzero spin and, consequently, the Universe itself, together with the set of particles of the Standard Model arising after the decay of the Higgs bosons, fall into the space with dimensionality t. Incidentally, the total thermodynamic functions of the Higgs universe have been found in all spaces. © 2013 Springer Science+Business Media New York.


Skobelev V.V.,Moscow State Industrial University
Russian Physics Journal | Year: 2013

In the context of the definition of the total entropy of the early Universe, on the assumption of its fermion and boson composition with an "accompanying" photon gas, the entropy, energy, and pressure of the gas have been calculated in an n-dimensional space in which the Universe could be during those "times." The problem appears extremely urgent if we suppose that the "choice" of the space dimensionality occurred based on an entropy maximum. © 2013 Springer Science+Business Media New York.


Skobelev V.V.,Moscow State Industrial University
Russian Physics Journal | Year: 2013

Preliminary analytical calculations show that if one assumes fermions (quarks or electrons) generated by superstrings in the early Universe to have existed as a degenerate, nonrelativistic, ideal quantum gas, then the entropy of such a system will have local maxima in spaces with number of dimensions n = 5, 9, 13. Thus there are reasons to assume that the Universe was formed in a space with specifically such a number of dimensions. With further evolution of the Universe, if we continue to adhere to the ground-laying principle of the second law of thermodynamics, in connection with ongoing changes in the temperature and composition, it appears that space with n = 3 began to correspond to an entropy maximum. Whatever the case may be, the latter assertion is only a hypothesis, whose proof at the given stage of knowledge is not possible. © 2013 Springer Science+Business Media New York.


Skobelev V.V.,Moscow State Industrial University
Russian Physics Journal | Year: 2015

The problem of finding discrete energy values of a particle with negative charge equal in absolute value to the elementary charge in one-dimensional space (e → e1), located in the field of a nucleus with charge (Ze1) with potential corresponding to the space of this dimension (N = 1) and different from the potential of the nucleus in three-dimensional space (N = 3) is solved in the quasiclassical approximation. For the one-dimensional case, the corresponding Schrödinger equation is solved and exact energy values are obtained, coincident with the quasiclassical approximation in the limit of large quantum numbers, and the wave function, expressed in terms of the Airy function, is found. In this latter approach, the energy values depend on the zeros of the Airy function. Considerations are discussed, touching on the possibility of solution of the Schrödinger equation for a hydrogen-like atom in two-dimensional space (N = 2). © 2015, Springer Science+Business Media New York.


Skobelev V.V.,Moscow State Industrial University
Journal of Experimental and Theoretical Physics | Year: 2010

The Fermi energy, partial concentrations of polarized neutrons, pressure, and volume energy density of a degenerate nonrelativistic neutron gas in a magnetic field are calculated using numerical methods taking into account the anomalous magnetic moment of a neutron. The results of calculations are a generalization of relations underlying the Oppenheimer-Volkov model of a neutron star to the case of an applied magnetic field. An ultrastrong (up to 10 17 G) magnetic field changes the pressure and internal energy of the star and affects it static configuration and evolution. It is shown that a degenerate neutron gas in ultrastrong and weak magnetic fields is paramagnetic; the corresponding values of magnetic susceptibility differ by a factor on the order of unity. The possibility of experimentally verifying the results from analysis of pulsar-emitted radiation is discussed. © 2010 Pleiades Publishing, Ltd.

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