South Ural State University ) in Chelyabinsk is one of the largest educational institutions in Russia. It is among the top-ten of the Russian universities according to the state rating of the Ministry of Education and Science of the Russian Federation, and the largest in Russia in terms of the number of undergraduates.There are over 50 thousand students and more than 5 thousand faculty members and staff at the University, including 270 professors and 1020 associate professors. Among them are 4 academicians and 5 Corresponding Members of the Russian Academy of science, over 90 academicians of various public academies, 4 members of foreign academies. Wikipedia.
Elyukhina I.,South Ural State University
Rheologica Acta | Year: 2011
The general algorithm of calculations for oscillating-cup viscometry of fluids with viscous, elastic and plastic components is developed for damped and forced modes. The working equations efficient for practical applications are presented and related problems of data processing are analyzed. The case of forced oscillations of viscometer filled with rheostable fluids is treated in detail. © 2011 Springer-Verlag.
Shchurov I.A.,South Ural State University
International Journal of Advanced Manufacturing Technology | Year: 2011
This paper presents a new calculation procedure of the virtual pitch thread diameter using the cloud of points from coordinate measuring machines (CMM). The procedure involves scanning of thread profiles using a CMM, calculation of points sets belonging to the left and right thread flanks, next determination of the thread profile which belongs to the adjoining helical surface. Its parameters guarantee the required diameter calculation. Estimation of this diameter comparing it with the standard one measured by CMM "Lapik KIM- 1000" and the theoretical maximum pitch thread diameter shows that this approach gives a reliable result.
Garbuzenko D.V.,South Ural State University
World Journal of Gastroenterology | Year: 2015
Severe complications of liver cirrhosis are mostly related to portal hypertension. At the base of the pathogenesis of portal hypertension is the increase in hepatic vascular resistance to portal blood flow with subsequent development of hyperdynamic circulation, which, despite of the formation of collateral circulation, promotes progression of portal hypertension. An important role in its pathogenesis is played by the rearrangement of vascular bed and angiogenesis. As a result, strategic directions of the therapy of portal hypertension under liver cirrhosis include selectively decreasing hepatic vascular resistance with preserving or increasing portal blood flow, and correcting hyperdynamic circulation and pathological angiogenesis, while striving to reduce the hepatic venous pressure gradient to less than 12 mmHg or 20% of the baseline. Over the last years, substantial progress in understanding the pathophysiological mechanisms of hemodynamic disorders under liver cirrhosis has resulted in the development of new drugs for their correction. Although the majority of them have so far been investigated only in animal experiments, as well as at the molecular and cellular level, it might be expected that the introduction of the new methods in clinical practice will increase the efficacy of the conservative approach to the prophylaxis and treatment of portal hypertension complications. The purpose of the review is to describe the known methods of portal hypertension pharmacotherapy and discuss the drugs that may affect the basic pathogenetic mechanisms of its development. © The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
Podoshvedov S.A.,South Ural State University
Optics Communications | Year: 2012
We propose an approach with displaced states to use it for rotations of base coherent states and squeezed coherent states. Our approach is based on representation of the coherent states in free-traveling fields in terms of displaced number states with arbitrary amplitude of displacement. Two optical schemes are developed for construction of Hadamard gate for the base states. One of the optical schemes is based on alternation of photon additions and displacement operators (in general case, N-photon additions and N-1-displacements are required) to generate displaced squeezed even/odd superposition of coherent states (SCSs) with high fidelity in dependency on type (computational zero or one) of the base input state. Another optical scheme uses two-photon subtracted squeezed coherent states to approximate outcome of the Hadamard gate for the base squeezed coherent states. Output states approximate with high fidelity either even squeezed SCS or odd SCS shifted relative to each other by some value. It enables to adjust the optical scheme for construction of the Hadamard gate being mainframe element for quantum computation with basic squeezed coherent states. © 2012 Elsevier B.V. All rights reserved.
Bartashevich E.V.,South Ural State University |
Tsirelson V.G.,Mendeleev University of Chemical Technology
Physical Chemistry Chemical Physics | Year: 2013
The polarization effects associated with halogen bonding for the series of charge-transfer complexes Dm⋯X-Y, where donor molecules D m = NH3, H2O, H2S, C 2H4, CO and X-Y = Cl2, ClF, Br2, BrCl, ICl, I2, are characterized in terms of the quantum theory of atoms in molecules using the B3LYP/6-311** Kohn-Sham wave functions. We study the electrostatic potential features of separate donor and acceptor molecules, the change in atomic charges as well as the atomic electric dipole moments and their components, and the intra-atomic electron density dipole polarization and the bonding dipole moments resulting from the electron density redistribution between the molecules in the charge-transfer complexes. The equation linking the most negative electrostatic potential values in the donor molecules and the most positive values in dihalogen molecules with the stretching force constants was found using two-factor regression. It is demonstrated that the dipole polarization of the acceptor atom mirrors the strength of halogen bonding in complexes in a series of different donors and acceptors. An exponential relationship between the magnitude of the total atomic electric dipole moment of the acceptor atom and the intermolecular stretching force constant is established for weakly bounded complexes. © 2013 the Owner Societies.