National Research Tomsk Polytechnical University

Tomsk, Russia

National Research Tomsk Polytechnical University

Tomsk, Russia

Time filter

Source Type

Lasukov V.V.,National Research Tomsk Polytechnical University
Russian Physics Journal | Year: 2012

The entropy of the Universe is calculated within the Einstein and Logunov concepts. It is shown that the entropies of the Universe calculated within the foregoing concepts coincide at the Beginning and at the present time. © 2012 Springer Science+Business Media, Inc.


Il'in A.P.,National Research Tomsk Polytechnical University | Root L.O.,National Research Tomsk Polytechnical University | Mostovshchikov A.V.,National Research Tomsk Polytechnical University
Technical Physics | Year: 2012

The influence of nanopowder irradiation by fast (4-MeV) electrons on the energy stored in nanopowders is studied. It is found that the irradiation of the nanopowders increases the amount of accumulated energy by 2. 5 times as a maximum compared with the thermal effect of nonirradiated nanopowder oxidation. © 2012 Pleiades Publishing, Ltd.


Sanditov D.S.,Russian Academy of Sciences | Belomestnykh V.N.,National Research Tomsk Polytechnical University
Technical Physics | Year: 2011

A relation between the elastic moduli and Poisson's ratio of crystalline and vitreous solids is considered. The feasibility of introducing the averaged bulk modulus, which has the same attributes as other elastic moduli, is substantiated. A relationship between the Grüneisen parameter and Poisson's ratio is discussed. © 2011 Pleiades Publishing, Ltd.


Lasukov V.V.,National Research Tomsk Polytechnical University
Russian Physics Journal | Year: 2011

It is shown that in superspace-time, the quantum law of inertia of a Planckian particle is significantly modified due to its gravitational self-action. © 2011 Springer Science+Business Media, Inc.


Fursa T.V.,National Research Tomsk Polytechnical University | Dann D.D.,National Research Tomsk Polytechnical University
Technical Physics | Year: 2011

Mechanoelectrical transformations are studied on models with different geometries and piezoelectric inclusion concentrations. The electrical signal intensity is found to decrease with increasing depth of a piezoelectric source relative to the position of an electrical signal detector. The electrical signal is the difference between signals from the unlikely charged surfaces of the piezoelectric source being deformed by an acoustic excitation wave. The spectral amplitudes of electrical signals coming from different regions of one sample and from identical (in composition) samples containing a large amount of piezoelectric inclusions differ considerably. This difference is due to the random orientation of the quartz piezoelectric axes relative to the electrical detector. Therefore, nondestructive mechanoelectrical techniques for inspection of heterogeneous materials with piezoelectric inclusions must use amplitude-independent criteria. © 2011 Pleiades Publishing, Ltd.


Kushch V.I.,Ukrainian Academy of Sciences | Knyazeva A.G.,National Research Tomsk Polytechnical University
Acta Mechanica | Year: 2016

The finite cluster model (FCM)-based homogenization scheme has been formulated in terms of the dipole moments of the representative volume element (RVE) of actual composite and equivalent inclusion. Provided the interactions between the inclusions were taken into account, this scheme is asymptotically exact in the sense that the effective properties converge to its exact value with increasing RVE size and thus can be regarded as a rigorous method of micromechanics. To demonstrate its potential, the conductivity problem for a composite with non-randomly oriented elliptic inclusions is considered. The convergence of the solution is illustrated, and an effect of the microstructure including the orientation factor on the effective conductivity of the composite has been explored. The methodological issues of FCM application are discussed including an appropriate shape of the composite cluster and equivalent inclusion. The practical importance of the FCM consists in its direct applicability to the image of the microstructure obtained by the instrumental methods which makes it a convenient tool for estimating the effective properties of a composite in situ. © 2015, Springer-Verlag Wien.


Sivkov A.A.,National Research Tomsk Polytechnical University | Gerasimov D.Yu.,National Research Tomsk Polytechnical University | Evdokimov A.A.,National Research Tomsk Polytechnical University
Instruments and Experimental Techniques | Year: 2014

The effect of the energy on the dynamics of electroerosive surface wear of the accelerating channel in a coaxial magnetic plasma accelerator is studied. The energy supplied to the accelerator is varied by cutting off the current pulse tail by a trigatron arrester at different instants of times. It has been ascertained that the dynamics of electroerosive surface wear of the accelerating channel is mainly determined by the behavior of the discharge power in the course of the process in the accelerator. © 2014 Pleiades Publishing, Inc.


Zaytseva N.M.,National Research Tomsk Polytechnical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

The article examines a problem of searching for new energy-efficient technological solutions in alumina production, which is characterized by nonlinearity, inertia and closedness. It suggests a method to solve this problem on the basis of modeling of the production process and development of the optimizing function based on production cost and obtaining values of the process variables. © 2015 IEEE.


Tryasuchev V.A.,National Research Tomsk Polytechnical University
Physics of Atomic Nuclei | Year: 2013

The parameters of six resonances of the isobar model for η′-meson photoproduction were fitted to experimental differential cross sections for the reaction γπ → η′p that weremeasured by the CLAS-2009 and CBELSA/TAPS Collaborations (Mainz, Germany). It was shown that, in the photon energy region from the reaction threshold to 3700MeV, a good description of the experimental cross sections was attained by taking into account the contributions of high-angular-momenta heavy resonances alone. © 2013 Pleiades Publishing, Ltd.


Lasukov V.V.,National Research Tomsk Polytechnical University
Russian Physics Journal | Year: 2013

An atomic model of the Big Bang has been developed on the basis of quantum geometrodynamics with a nonzero Hamiltonian and on the concept of gravitation developed by Logunov asymptotically combined with the Gliner's idea of a material interpretation of the cosmological constant. The Lemaître primordial atom in superpace-time, whose spatial coordinate is the so-called scaling factor of the Logunov metric of the effective Riemann space, acts as the Big Bang model. The primordial atom in superspace-time corresponds to spatialtime structures(spheres, lines, and surfaces of a level) of the Minkowski spacetime real within the Logunov gravitation theory, the foregoing structures being filled with a scalar field with a negative density of potential energy. © 2013 Springer Science+Business Media New York.

Loading National Research Tomsk Polytechnical University collaborators
Loading National Research Tomsk Polytechnical University collaborators