Browsing 2018 by Issue Date

Now showing items 1-20 of 28

Estimation of resistance to destruction of multi-element coatings

Eremin, E. N.; Yurov, V. M.; Guchenko, S. A.; Laurynas, V. Ch. (IOP publishing LTD, 2018)

It is proposed to experimentally determine the work of destruction of a coating by their surface tension. The surface tension of the coating is determined from the dimensional dependence of its microhardness. Comparison ...
Using herders for oil spill response in the sea

Kulekeyev, Zh.A.; Nurtayeva, G.K.; Mustafin, E.S.; Ainabayev, A.A.; Mustafin, T.E.; Borsynbayev, A.S.; Zharikessov, G.A. (National Academy of Sciences of the Republic of Kazakhstan, 2018)

The article is devoted to the study of the capabilities, optimal conditions and efficiency of using herders for in-situ burning of oil as an oil spill response technique in the Kazakhstan Sector of the Caspian Sea (KSCS). ...
Formation of the System of School Education of the Kazakh Society of Central Kazakhstan in the second half of the XIX - the beginning of the XX centuries

Tuleuova, B.T.; Shotbakova, L.K.; Smagulova, G.M. (Academic Publishing House Researcher s.r.o., 2018)

The article considers the formation and development of the system of school education in the Kazakh steppe in the context of the educational policy of the Russian Empire in the second half of the XIX and beginning of the ...
Influence of defects of nanostructured ZnO films on the photovoltaic characteristics of perovskite solar cells

Afanasyev, D.A.; Mirzoev, K.Yu.; Ibrayev, N.Kh. (IOP publishing LTD, 2018)

The influence of the defects in ZnO films on the electrical and photovoltaic properties of perovskite solar cells was investigated in the work. According to the results of the research it was established that the defects ...
Photovoltaic properties of DSSC with composite counter electrodes based on Pt and SLGO

Ibrayev, N.; Seliverstova, E.; Dzhanabekova, R.; Serikov, T. (IOP publishing LTD, 2018)

Langmuir-Blodgett (LB) films based on graphene oxide were synthesized and studied. Structure and optical properties of the films are studied. At using of the films as counter electrodes in DSSC cells, it is shown that ...
Formation of (Cu)(n) & (Cu2O)(n) nanostructures with the stability of their clusters

Iskakova, K.; Akhmaltdinov, R.; Kuketaev, T. (Amer inst mathematical sciences-aims, 2018)

We investigated the electronic structure and the properties of cupper (Cu) and compound semiconductor (Cu2O) by with the help of computer simulation of the programs developed by us and obtaining various morphologies and ...
Decoration of wide bandgap semiconducting materials for enhancing photoelectrochemical efficiency of PEC systems.

Bakranov, N.; Zhabaikhanov, A.; Kudaibergenov, S.; Ibraev, N. (IOP Publishing, 2018)

The production of photoanodes based on wide-band gap materials such as TiO2 is economically viable because of the low cost of synthesis methods. Contrary to economic aspects,wide-band gap semiconductor materials have a ...
The effect of the DSSC photoanode area based on TiO2/Ag on the conversion efficiency of solar energy into electrical energy

Ibrayev, N.; Serikov, T.; Zavgorodniy, A.; Sadykova, A. (IOP publishing LTD, 2018)

A module based on dye-sensitized solar cells with Ag/TiO2 structure was developed. It is shown that the addition of the core-shell structure to the semiconductor film of titanium dioxide, where the nanoparticle Ag serves ...
Investigation of a Crushing and Grinding Unit of an Electropulse Installation

Kurytnik, I. P.; Nussupbekov, B. R.; Karabekova, D.Zh; Khassenov, A. K.; Kazhikenova, A. Sh. (Polish Academy of Sciences, 2018)

The paper proposes a new electropulse apparatus for processing natural raw materials. The temperature of the crushing-and-reducing assembly of an electropulse plant is found. The results of ore crushing are presented and ...
The influence of the distance between the donor-acceptor groups of polymethine dyes on their photovoltaic properties

Seliverstova, E.; Ibrayev, N. (IOP publishing LTD, 2018)

Spectral-luminescent and photovoltaic properties of polymethine dyes of various structures are studied. It is shown that an increase in the length of the methylene chain between the active chromophores leads to a red-wave ...
The study of the chemical composition of thymus eremita klok. and thymus rasitatus klok. from the karaganda region

Akhmetalimova, A. M.; Ivasenko, S. A.; Marchenko, A. B.; Ishmuratova, М. Yu.; Poleszak, E.; Ludwiczuk, A.; Loseva, I. V. (National Academy of Sciences of the Republic of Kazakhstan, 2018)

Possible reduction of stocks of medicinal plant raw materials of creeping thyme (Thymus serpyllum L.) and thyme vulgaris (Thymus vulgaris L.) leads to the need to expand the raw material base of official medicinal plants ...
Carbonized metal-organic frameworks nanorods as recyclable photocatalyst for visible light-induced water oxidation

Zhang, Min.; Jianmin, Luo.; Liang, Xiaoyu.; Yan, Baolin.; Baikenov, M.I.; Su, Xintai.; Chi, Le.; Yang, Chao. (Elsevier Science BV, 2018-01)

Magnetic Fe2C nanorods were successfully synthesized by the carbonization of iron-based metal–organic framework (MOF) template and examined as photocatalyst for water oxidation reaction. An apparent turnover frequency (TOF) ...
Synthesis of Al2O3/carbon composites from wastewater as superior adsorbents for Pb(II) and Cd(II) removal

Chen, Hang.; Luo, Jianmin.; Wang, Xiao.; Liang, Xiaoyu.; Zhao, Yunlong.; Yang, Chao.; Baikenov, M.I.; Su, Xintai. (Elsevier Science BV, 2018-01)

Al2O3/carbon (Al2O3/C) composites obtained from the alkaline wastewater of oil refinery and acid wastewater of aluminum anodizing factory have been studied with the principle of “using waste to treat waste”. The process ...
Properties of Stimulated Emission of the D De567 Dye in Pores of Anodized Aluminum Oxide

Aimukhanov, A.K.; Ibrayev, N.Kh.; Esimbek, A.M. (Springer, 2018-02)

Properties of the stimulated emission of the РМ567 dye in porous aluminum oxide are investigated. It is established that when РМ567 molecules are doped into aluminum oxide pores, a small part of dye molecules forms aggregates. ...
The research of global innovation capital: a review and analytical comparison

Mamrayeva, D.; Stybaeyeva, A.; Tashenova, L. (Institute of Society Transformation, 2018-03)

In the article, the global innovation activity in terms of 11 industries based on the data of the official international rating of Clarivate Analytics was researched. The rating was compiled by patent data analysing and ...
Sorption of Heavy Metal Ions from Water by Natural Apatite Ore

Amerkhanova, Sh.K.; Uali, A.S.; Shlyapov, R.M. (Allerton Press, 2018-03)

The article shows the efficient use of natural apatite ore in purification of mining industrial wastewaters from heavy metal ions. The determination of adsorption constants, calculation of thermodynamic parameters at various ...
Recent progress on perovskite materials in photovoltaic and water splitting applications

Moniruddin, Md; Ilyassov, B; Zhao, X; Smith, E; Serikov, T; Ibrayev, N; Asmatulu, R; Nuraje, N (Elsevier B.V., 2018-03)

Both inorganic and hybrid (organo-inorganic) perovskite materials are potential candidates as photocatalysts for use in both photovoltaic (PV) and photocatalytic water splitting applications. Currently, research has been ...
On Approximation Orders of Functions of Several Variables in the Lorentz Space

Akishev, G. A. (Nauka/Interperiodica, 2018-04)

We consider the anisotropic Lorentz space of periodic functions. Sufficient conditions are proved for a function to belong to the anisotropic Lorentz space. Estimates for the order of approximation by trigonometric ...
Thermodynamic and Electrophysical Properties of Nanosized LaMeFeCrMnO6.5 (Me = Li, Na, K) Ferro-Chromo-Manganites

Kasenov, B. K.; Sagintaeva, Zh. I.; Kasenova, Sh. B.; Ermaganbetov, K. T.; Kakenov, K. S.; Esenbaeva, G. A. (Nauka/Interperiodica, 2018-04)

Ferro-chromo-manganites with compositions LaMeFeCrMnO6.5 (Me = Li, Na, K) are synthesized via ceramic technology from La2O3 (special purity grade), Fe2O3, Cr2O3, Mn2O3, and carbonates of alkali metals (analytical grade). ...
Minimal Cohomological Model of a Scalar Field on a Riemannian Manifold

Arkhipov, V. V. (Springer, 2018-04)

Lagrangians of the field-theory model of a scalar field are considered as 4-forms on a Riemannian manifold. The model is constructed on the basis of the Hodge inner product, this latter being an analog of the scalar product ...

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Browsing 2018 by Issue Date

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