International Kazakh-Turkish University

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Dzhumadullaeva S.A.,International Kazakh-Turkish University | Baeshov A.B.,International Kazakh-Turkish University
Kinetics and Catalysis | Year: 2017

The catalytic activity of a synthetic ion-exchange resins has been studied in the reaction of cinnamic acid with hydrazine (aqueous medium, 363 K, 1.0–2.5 h) yielding the corresponding hydrazide. Efficient catalysts for the process are the anion-exchange resins AV-17-8 and AN-31. The modifying effect of the substrate—hydrazine hydrate—on the catalytic properties of the ion-exchange systems has been demonstrated. On the basis of IR spectroscopic studies, a plausible process mechanism was suggested. It involves polymer-bound quaternary ammonium ions of the anion exchanger. © 2017, Pleiades Publishing, Ltd.


Avramov K.,Ukrainian Academy of Sciences | Raimberdiyev T.,International Kazakh-Turkish University
Nonlinear Dynamics | Year: 2017

Nonlinear finite-DOF dynamical system is derived to describe the beam vibrations with transversal crack. The beam deflections are expanded by using the eigenmodes and contact parameter. The Galerkin method is applied to the partial differential equation, which describes the structure vibrations. Two- and three-DOF nonlinear dynamical systems with internal resonance are analyzed. The multiple scales method is used to investigate both the principle second resonance and the combination one. The resonance quasi-periodic and sub-harmonic motions are analyzed. The quasi-periodic motions are arisen due to the Neimark–Sacker bifurcation. © 2017 Springer Science+Business Media Dordrecht


Alexeeva L.A.,Institute of Mathematics and Mathematical Modeling | Sarsenov B.T.,International Kazakh-Turkish University
AIP Conference Proceedings | Year: 2015

We consider a model problem for the research of Earth's surface state caused by discharge of tectonic stress on the deep cracks in the earth's crust. Using the numerical method of bicharacteristics, algorithm is developed and solution of the problem of non-stationary dynamics of a homogeneous isotropic elastic half-space is built under plane strain when one resets the vertical stress on crack. Diffraction of waves on the surface is studied, pictures of wave fields and stress-strain state of the medium and the surface for different moments of time are built. © 2015 AIP Publishing LLC.


Avramov K.,Ukrainian Academy of Sciences | Raimberdiyev T.,International Kazakh-Turkish University
Engineering Fracture Mechanics | Year: 2017

The lateral vibrations of the beams with two breathing cracks are considered. Two contact parameters are used to describe breathing of the cracks. The finite degrees of freedom nonlinear dynamical system with two constraints is derived to describe the beam vibrations. These constraints describe breathing of the cracks. The continuation technique is applied to analyze numerically the periodic vibrations. The periodic motions, their stability and bifurcations are investigated. It is analyzed the sub-harmonic motions, which originate from the period-doubling bifurcations. The sub-harmonic motions undergo the Naimark-Sacker bifurcations. Therefore, these motions are transformed into the quasiperiodic ones. The influences of the cracks lengths on the sub-harmonic motions are investigated numerically. © 2017 Elsevier Ltd


Kuralbayev A.,International Kazakh-Turkish University | ABISHOV N.,International Kazakh-Turkish University
Journal of Environmental Management and Tourism | Year: 2017

The article deals with the modeling the demand for inbound tourism in Kazakhstan and in the regions. The panel data for 16 countries was used-the basic sources of tourist flows and the period from 2010 to 2014. Modeling is carried out separately for the South-Kazakhstan region of 5 tourist zones. As the determinants of demand the gross national product in the country of origin, exchange rate, transport costs, cost of living and the lagged demand variable was considered. The estimates of dynamic models of demand correspond to the expectations, are statistically significant and can be useful in the practice of development planning of tourism in different municipalities and regions of Kazakhstan. © 2017. ASERS Publishing. All rights reserved.


Abdikerimova A.A.,International Kazakh-Turkish University
International Journal of Environmental and Science Education | Year: 2016

The purpose of the study is to determine the main contemporary development trends in administrative-legal relations in the field of administrative justice. In order to examine theoretical and practical issues of modern administrative justice, normative legal acts identifying the relations in the system of administrative justice in the Republic in Kazakhstan have been reviewed. The analysis of international experience showed that administrative justice was not a punitive, but an advocacy institution. Furthermore, in examining the essence of the judiciary as a constitutional category, the authors consider its components: administration of justice, judicial control, interpretation of the active legislation on the basis of case studies and case law analysis, and formation of the judiciary. The submissions may be useful for historians, lawyers and legislators as a basis of investigations on reforming the administrative law of the Republic of Kazakhstan and formation of new administrative institutions for successful implementation of judicial reform. © 2016 Abdikerimova.


Sadybekov M.A.,Institute of Mathematics and Mathematical Modeling | Torebek B.T.,International Kazakh-Turkish University | Turmetov B.Kh.,International Kazakh-Turkish University
AIP Conference Proceedings | Year: 2014

The paper is devoted to the investigation of questions about constructing the explicit form of the Green's function of the Robin problem. For constructing this function we use the representation of the fundamental solution of the Laplace equation in the form of a series. An integral representation of the Green function is obtained and for some values of the parameters, the problem is presented in elementary functions. © 2014 AIP Publishing LLC.


Imanbaev N.S.,International Kazakh-Turkish University | Sadybekov M.A.,Institute of Mathematics and Mathematical Modeling
AIP Conference Proceedings | Year: 2014

In this paper, we consider a linear operator, generated by the ordinary differential expression with the boundary load and strongly regular boundary conditions of the general form. We prove the possibility of constructing the characteristic determinant of the spectral problem. © 2014 AIP Publishing LLC.


Simsek H.A.,Dokuz Eylül University | Simsek N.,Dokuz Eylül University | Simsek N.,International Kazakh-Turkish University
Energy Policy | Year: 2013

Recently, the importance of renewable energy sources has increased significantly as climate change has become an important long term threat to global ecosystems and the world economy. In the face of increased concern about climate change and high fossil fuel costs together with a reduction in the primary energy sources such as oil, natural gas and coal, alternative energy sources (renewables) are increasingly needed to respond to the threat of climate change and growing energy demand in the world. Recent developments in Turkey, such as the liberalization of the electricity market and improvements in the renewable legislations, have accelerated the growth process and investment opportunities in the field of renewable energy. Turkey's naturally endowed potential for renewables, such as solar, geothermal and wind, also accompanied these developments and attracted world attention to this market. In Turkey, renewable energy sources have gained great importance in the last decades due to growing energy demand and incentive policies which foster the utilization of renewable energy sources. This study aims to explore the availability and potential of renewable energy sources in Turkey and discuss the government policies and economic aspects. © 2013 Elsevier Ltd.


Berdyshev A.S.,Kazakh National Pedagogical University | Cabada A.,University of Santiago de Compostela | Turmetov B.K.,International Kazakh-Turkish University
Acta Mathematica Scientia | Year: 2014

This paper is concerned with the solvability of a boundary value problem for a nonhomogeneous biharmonic equation. The boundary data is determined by a differential operator of fractional order in the Riemann-Liouville sense. The considered problem is a generalization of the known Dirichlet and Neumann problems. © 2014 Wuhan Institute of Physics and Mathematics.

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