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Search Results: 1 - 10 of 130424 matches for " V. V. Glushkov "
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On the Anisotropy of E0 >= 5.5$\times$1019 eV Cosmic Rays according to Data of the Pierre Auger Collaboration
A. V. Glushkov
Physics , 2012, DOI: 10.1134/S1063778812010073
Abstract: The Pierre Auger Collaboration discovered, in a solid angle of radius about 18\degree, a local group of cosmic rays having energies in the region E0 \geq 5.5\times1019 eV and coming from the region of the Gen A radio galaxy, whose galactic coordinates are lG = 309.5\degree and bG = 19.4\degree. Near it, there is the Centaur supercluster of galaxies, its galactic coordinates being lG = 302.4\degree and bG = 21.6\degree. It is noteworthy that the Great Attractor, which may have a direct bearing on the observed picture, is also there.
Dependence of the Energy Spectrum of UHE Cosmic Rays on the Latitude of an Extensive Air Shower Array
A. V. Glushkov
Physics , 2012, DOI: 10.1134/S0021364008070023
Abstract: Several energy spectra of cosmic rays with energies E_0 \geq 10^17 eV measured at the Yakutsk EAS, AGASA, Haverah Park, HiRes, Auger, and SUGAR arrays are considered. It is shown that the fairly good mutual agreement of the spectrum shapes can be achieved if the energy of each spectrum is multiplied by a factor K specific for each spectrum. These factors exhibit a pronounced dependence on the latitude of the above-mentioned arrays.
Anisotropy of Arrival Directions of E0 > 8 x 10**18 eV Cosmic Rays and Cosmic Microwave Background
A. V. Glushkov
Physics , 2012, DOI: 10.1134/S1063778808080103
Abstract: Results are presented that were obtained by analysing the arrival directions of E0 > 8x10**18 eV primary cosmic rays recorded at the Yakutsk array over the period between 1974 and 2003 and at the SUGAR array (Australia). The greatest primary cosmic ray flux is shown to arrive from the region of visible intersection of the planes of the Galaxy and the Supergalaxy (local supercluster of galaxies) at a galactic longitude of about 137 degres. On a global scale, the lowest temperature of the cosmic microwave background is typical of this region.
Muons in EAS with E>=10^17eV according to the data from Yakutsk array
A. V. Glushkov,A. Sabourov
Physics , 2013,
Abstract: The lateral distribution of muons with threshold energy e ~ 1*sec(theta) GeV have been studied in showers with energy E>=10^17 eV. The data considered in the analysis have been collected from November 2011 to June 2013. Experimental values are compared to predictions obtained with the use of CORSIKA code within the framework of various hadron interaction models. The best agreement between experiment and theory is observed for QGSJETII-04 model. At E~10^17 eV it complies to a mixed cosmic ray composition with the mean atomic number ~3.0+/-0.5. At E>= 4*10^17 eV the composition varies around the value ~0.5.
Variations of the cosmic ray composition at energy above 0.1 EeV as observed by muon detectors of Yakutsk array
A. V. Glushkov,A. Sabourov
Physics , 2013,
Abstract: The lateral distribution of muons with ~1.0x\sec(\theta) GeV in extensive air showers within ~10^{17}-10^{19} eV energy region obtained during different observational periods from November 1987 to June 2013 has been analyzed. Experimental data have been compared to predictions of various hadron interaction models. The best agreement is observed with QGSJETII-04. Until 1996, the mass composition of cosmic rays with energy below 2x10^{18} eV was significantly lighter than in later periods.
Mass composition of cosmic rays with energy above 10**17 eV according to surface detectors of the Yakutsk EAS array
A. V. Glushkov,A. Sabourov
Physics , 2014, DOI: 10.1134/S0021364014230052
Abstract: We discuss the lateral distribution of charged particles in extensive air showers with energy above $10^{17}$ eV measured by surface scintillation detectors of Yakutsk EAS array. The analysis covers the data obtained during the period from 1977 to 2013. Experimental values are compared to theoretical predictions obtained with the use of CORSIKA code within frameworks of different hadron interaction models. The best agreement between theory and experiment is observed for QGSJet01 and QGSJet-II-04 models. A change in the cosmic ray mass composition towards proton is observed in the energy range $(1-20) \times 10^{17}$ eV.
Computer-Aided Design of X-Ray Microtomographic Scanners  [PDF]
V. I. Syryamkin, E. N. Bogomolov, V. V. Brazovsky, A. Sh. Bureev, G. S. Glushkov, A. V. Vasiliev
Advances in Computed Tomography (ACT) , 2013, DOI: 10.4236/act.2013.23015
Abstract:

The article is to study the development of computer-aided design of X-ray microtomographythe device for investigating the structure and construction of three-dimensional images of organic and inorganic objects on the basis of shadow projections. This article provides basic information regarding CAD of X-ray microtomography and a scheme consisting of three levels. The article also shows basic relations of X-ray computed tomography, the generalized scheme of an X-ray microtomographic scanner. The methods of X-ray imaging of the spatial microstructure and morphometry of materials are described. The main characteristics of an X-ray microtomographic scanner, the X-ray source, X-ray optical elements and mechanical components of the positioning system are shown. The block scheme and software functional scheme for intelligent neural network system of analysis of the internal microstructure of objects are presented. The method of choice of design parameters of CAD of X-ray microtomography aims at improving the quality of design and reducing costs of it. It is supposed to reduce the design time and eliminate the growing number of engineers involved in development and construction of X-ray microtomographic scanners.

Synthesis and Structure of Ferrocenol Esters  [PDF]
Mikhail Denisov, Aleksey Gorbunov, Maksim V. Dmitriev, Pavel Slepukhin, Vladimir Glushkov
International Journal of Organic Chemistry (IJOC) , 2016, DOI: 10.4236/ijoc.2016.62012
Abstract: N-Heterocyclic carbene-catalyzed oxidative esterification of ferroceneboronic acid by aromatic and heteroaromatic aldehydes affords the new ferrocenol hetaryl and aryl esters 1 - 4, 6 - 8 and 9 - 11. The reaction takes place under mild conditions. The X-ray crystal structure of ferrocenyl esters 3, 6, 11 was determined.
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis
V. N. Khokhlov, A. V. Glushkov,I. A. Tsenenko
Nonlinear Processes in Geophysics (NPG) , 2004,
Abstract: In this paper, we employ a non-decimated wavelet decomposition to analyse long-term variations of the teleconnection pattern monthly indices (the North Atlantic Oscillation and the Southern Oscillation) and the relationship of these variations with eddy kinetic energy contents (KE) in the atmosphere of mid-latitudes and tropics. Major advantage of using this tool is to isolate short- and long-term components of fluctuations. Such analysis allows revealing basic periodic behaviours for the North Atlantic Oscillations (NAO) indices such as the 4-8-year and the natural change of dominant phase. The main results can be posed as follows. First, if the phases of North Atlantic and Southern Oscillations vary synchronously with the 4-8-year period then the relationship between the variations of the NAO indices and the KE contents is the most appreciable. Second, if the NAO phase tends to abrupt changes then the impact of these variations on the eddy kinetic energy contents in both mid-latitudes and tropics is more significant than for the durational dominance of certain phase.
Revision of the energy calibration of the Yakutsk EAS array
A. V. Glushkov,M. I. Pravdin,A. Sabourov
Physics , 2014, DOI: 10.1103/PhysRevD.90.012005
Abstract: Responses of surface and underground scintillation detectors of Yakutsk array are calculated for showers initiated by primary particles with energy E0>=1.0E17 eV within the frameworks of QGSJet01 QGSIIJet-II-04, SIBYLL-2.1 and EPOS-LHC hadron interaction models. A new estimation of E0 is obtained with the use of various methods. The resulting energy is lower compared to the obtained with earlier method by factor ~1.33.
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