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Kyzylorda, Kazakhstan

Saparkhojayev N.,University of Management and Technology | Dauitbayeva A.,Kyzylorda State University | Nurtayev A.,International University | Baimenshina G.,Kazakh National Technical University
2014 International Conference on Web and Open Access to Learning, ICWOAL 2014 | Year: 2015

In today's world, we always carry allsorts of keys and addition to them, we use pass cards as well. Moreover, we keep all of them in our pockets or wallets; they occupy a lot of space and weigh a lot. In addition to this, we carry gadgets (smart phones, tablets, smart watches, etc.) which are essential in today's life. After thinking all these issues, authors came up to the idea of replacing usual keys by smartphones to use for opening/closing and locking/unlocking doors. Smartphones have already used as mobile payments. Most of the modern mobile devices are equipped with NFC module, and by using such devices, it is possible to get rid of carrying heavy, metal keys, pass-cards, etc. People often forget keys at home and they are relatively small and easy to lose. Instead of carrying all these keys, we present an NFC- enabled Access Control and Management System, which by the help of mobile devices, NFC technology and HCE mode, introduced in Android 4.4, makes possible for people to use only one single key. ISO 7816-4 smart card standard is used for emulation a smart card and the data exchange between the mobile device and NFC-reader. © 2014 IEEE. Source

Zhigulina A.Yu.,Samara State University | Montaev S.A.,West Kazakhstan Agrarian Technical University Named after Zhangir Khan | Zharylgapov S.M.,Kyzylorda State University
Procedia Engineering | Year: 2015

The paper describes the mechanism of changes in wall ceramics physical-mechanical properties and structure when additives of various types and quantities are doped. The authors come to the conclusion that composite modifications of ceramic mixtures improve their molding properties, reduce the firing temperature for 150-20007deg;C and increase resistibility and frost resistance of end products. These composition additives consist of crushed glass fine powder mixed with oil sludge in 1/5 proportion. The paper proves that these composition additives 30-35% reduce energy consumption in wall ceramics production and provides wall ceramics of high quality for civil and industrial engineering. © 2015 The Authors. Published by Elsevier Ltd. Source

Kunitsyn A.L.,Moscow Aviation Institute | Tureshbaev A.T.,Kyzylorda State University
2015 International Conference on Mechanics - Seventh Polyakhov's Reading | Year: 2015

Considered a problem for the relative equilibrium stabilization of the orbital station at the unstable collinear libration point L2 in the Earth-Moon system with a small change of the reaction engine acceleration (constant in magnitude) rigidly attached to the station. It is shown, that with a small movement of the station's center of mass relatively to the point L2 in the station's parameter space there is a region in which its relative equilibrium in its translation-rotation motion is stable in the first approximation. © 2015 IEEE. Source

Krivonogov S.K.,RAS Institute of Geology and Mineralogy | Burr G.S.,University of Arizona | Kuzmin Y.V.,RAS Institute of Geology and Mineralogy | Gusskov S.A.,Russian Academy of Sciences | And 3 more authors.
Gondwana Research | Year: 2014

The Aral Sea (an intracontinental saline lake in western Central Asia) is of great interest because of its rapid shrinkage during the last 50. years, which caused catastrophic environmental and socio-economic consequences for the region and its population. Geoscientists established the existence of similar multiple fast and deep lake level fluctuations in the past; however, a comprehensive picture of these changes has been lacking. In this paper, we summarize published and new geomorphological, sedimentological, paleoenvironmental, geoarcheological, and historical data to reconstruct fluctuations in the Aral during the last two thousand years. Two deep regressions are recognized, in addition to the modern human-induced regression. The regressions occurred at ca. 2.1-1.3 and 1.1-0.35. ka. cal BP according to the sedimentary and faunal data, and 2.1-1.45 and 1.0 (0.85)-0.45. ka. cal BP according to the archeological and historical data. The Aral Sea lake level dropped to ca. 10. m. a.s.l. during the first regression and to ca. 29. m. a.s.l. during the second one. Transgressions which separated these periods reached elevations of ca. 52. m. a.s.l., and 54. m. a.s.l., respectively. According to the current data, the regressions lasted longer than the transgressions, or were of equal duration. Reasons considered for past Aral Sea lake level changes include both natural and human-related causes, as the region features more than 2000. years of agricultural activity. © 2014 International Association for Gondwana Research. Source

Suerbaev K.A.,Al-Farabi Kazakh National University | Zhaksylykova G.Z.,Al-Farabi Kazakh National University | Appazov N.O.,Kyzylorda State University
Eurasian Chemico-Technological Journal | Year: 2014

Hydroalkoxycarbonylation of olefins with carbon monoxide and alcohols under condition of homogeneous - catalysis with transition metal complexes allows facile one-step synthesis of practically useful carbon acid esters. Many of them have biological activity and are constituents of drugs or valuable intermediate products in drug synthesis. Hydroalkoxycarbonylation of isobutylene with carbon monoxide and alcohols in the presence of catalytic system Pd(PPh3)4-PPh3-TsOH was applied for preparing of biological active isovaleric acid esters: 1-menthylisovalerate (main active component of the spasmolytic medicine “Validolum”), ethylisovalerate (intermediate product for obtaining sedative and spasmolytic medicines “Ethyl ester of α-bromisovaleric acid” and “Corvalolum”), cyclohexylisovalerate (bactericide activity) and benzylisovalerate (bactericide and antifungus activity). Hydroalkoxycarbonylation reaction of isobutylene with carbon monoxide and alcohols (ethanol, cyclohexanol, l-menthol, benzyl alcohol) in the presence Pd(PPh3)4-PPh3-TsOH system carried out at conditions: temperature 100 ºC; CO pressure 2.0 MPa; reaction time 4 h; reactants and catalyst components ratio [alcohol]:[isobutylene]:[Pd(PPh3)4]:[PPh3]:[TsOH] = 435:550:1:3:12. The yields of the products were 71-95% (on converted alcohols). The selectivity in linear reaction products was 100%. Such a high regioselectivity is apparently provided both by the structure of the starting alkene (isobutylene) and by the reaction mechanism. The most probable is a hydride mechanism. Due to the more advanced technology of production the Medicines will have better qualitative characteristics. The cost of production of the Medicines with the use of new technologies is 2-3 times lower as compared to the medicines produced by existing at the present traditional technologies. © 2014 Al-Farabi Kazakh National University. Source

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