Omorov T.T.,National Academy of science of the Kyrgyz Republic |
Asylbekov N.S.,Kyrgyz State Technical University
Optoelectronics, Instrumentation and Data Processing | Year: 2012
Approaches to determining the unknown operator and the diagram of the neural network in the process of its analysis for diagnostics of digital systems are considered. © 2012 Allerton Press, Inc.
Kerimbekov A.,National Academy of science of the Kyrgyz Republic |
Kerimbekov A.,Kyrgyz Russian Slavic University |
Abdyldaeva E.,Kyrgyz Turkish Manas University |
Nametkulova R.,Kyrgyz Russian Slavic University |
And 3 more authors.
Applied Mathematics and Information Sciences | Year: 2016
In the present paper we studied the problem of nonlinear optimal control of the thermal processes described by Fredholm integro-differential equations when the control parameters are nonlinearly included into the equation as well as into the boundary condition. The concept of weak generalized solution of the boundary value problem is introduced and the algorithm for its construction is indicated. It is established that optimal control is defined as the solution of the system of nonlinear integral equations which contain unknown functions under and out of the integral and satisfy the additional condition in the form of the system of inequalities. Sufficient conditions for the existence of a unique solution of the problem of nonlinear optimization are given, and algorithm of its construction has been developed. © 2016 NSP Natural Sciences Publishing Cor.
Volkova N.I.,Tomsk State University |
Kovyazin S.V.,RAS Institute of Geology and Mineralogy |
Stupakov S.I.,RAS Institute of Geology and Mineralogy |
Simonov V.A.,RAS Institute of Geology and Mineralogy |
Sakiev K.S.,National Academy of science of the Kyrgyz Republic
Geochemistry International | Year: 2014
Ion microprobe data for minerals from the eclogites of the Atbashi Range (South Tianshan) constrain the distribution of trace (Rb, Sr, Ba, Cr, V, Zr, Hf, Nb, Ta, U, Th, and Y) and rare-earth elements (REE) in zoned garnets and mineral inclusions in them. This study showed that garnets from the Atbashi eclogites are the main hosts for heavy REE; epidotes are important hosts for REE, Y, Sr, Th, and U; and omphacites are depleted in almost all trace elements compared with the bulk-rock compositions. Garnet, as well as epidote and omphacite inclusions exhibit systematic rimward depletion in a number of trace elements, which is related to the depletion of the rock matrix in these elements during crystallization. Deviations from this trend, including the enrichment of garnet rims in HREE and strong variations in the REE contents of garnets and mineral inclusions, can be explained by metamorphic reactions involving the destabilization of REE-bearing minerals. Our data suggest that the mobility of trace elements under eclogites-facies conditions is mainly controlled by the stability of certain minerals. © 2014, Pleiades Publishing, Ltd.
Rasskazov S.V.,Russian Academy of Sciences |
Chuvashova I.S.,Russian Academy of Sciences |
Mikolaichuk A.V.,National Academy of science of the Kyrgyz Republic |
Sobel E.R.,University of Potsdam |
And 3 more authors.
Petrology | Year: 2015
The Southern and Northern-Central Tian Shan are sharply different in the character of the evolution of Cretaceous-Paleogene magmatism. The Southern Tian Shan comprises a picrobasalt-trachybasalt-basanite-phonotephrite-phonolite volcanic series, which was formed over a considerable time interval from 122 to 46 Ma, whereas the Northern-Central Tian Shan hosts a foidite-basanite-trachybasalt-basaltbasaltic andesite volcanic association, which erupted within a rather narrow time interval between 61 and 53 Ma. The entire volcanic series of the former region was derived from a shallow garnet-free mantle source. The volcanic assemblage of the latter region included basanites and foidites derived from a deep garnet-bearing mantle source, whereas trachybasalt, basalt, and basaltic andesite melts were generated in the lower crust. It is supposed that the change of sources and different evolutionary trends of Cretaceous-Paleogene magmatism in the Southern and Northern-Central Tian Shan were caused by the activation of the heterogeneous lithosphere beneath the converging shores of the Late Paleozoic Turkestan paleoocean. © 2015, Pleiades Publishing, Ltd.
Torgoev I.A.,Scientific Engineering Center |
Alioshin Y.G.,Scientific Engineering Center |
Aitmatov I.T.,National Academy of science of the Kyrgyz Republic
FOG - Freiberg Online Geoscience | Year: 2013
Among the 70 types of worldwide natural hazards and phenomena causing severe harm to people and economy, more than 20 occur in the territory of Kyrgyzstan. The most destructive natural disasters include earthquakes, mudflows and floods, landslides and rockfalls, snow and glacial avalanches, movements and pulses of glaciers, stone streams, breaches of morainic and glacier lakes, heavy showers and snowfalls, subsidence and salinization of soil, groundwater elevation, etc. Natural and man-caused catastrophic events destabilize the economy of Kyrgyzstan and, in the context of budget gap, impel the government to divert a considerable part of the budget to eliminate consequences of disasters and render help to the population. The number of disasters and associated losses steadily increases. Consequently, the approach of forecasting and preventing natural and man-caused catastrophes and technologic emergencies is a highly topical, high-priority issue.