• Investigation of the influences of pulsed electrical discharges on the grinding of quartz raw materials 

  Khassenov, A.K.; Karabekova, D.Zh.; Nussupbekov, B.R.; Bulkairova, G.A.; Kudussov, A.S.; Alpyssova, G.K.; Bolatbekova, M.M. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  The article considers a method for obtaining raw materials — quartz powder, used to increase the resistance of building materials to adverse natural facts (wind, rain, etc.). When obtaining raw materials necessary ...
• The current state of electrospinning technology and its prospects for the future 

  Yeskermessov, D.; Tabiyeva, Y.; Aringozhina, Z.; Booth, M.; Tussupbekova, A.; Pazylbek, S. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  With the development of nanotechnology and modern research methods, the use of biodegradable polymer materials in various sectors of human life is of interest not only to the scientific world community, but also is a way ...
• DFT studies of BaTiO3 

  Inerbaev, T.M.; Zakiyeva, Zh.Ye.; Abuova, F.U.; Abuova, A.U.; Nurkenov, S.A.; Kaptagay, G.A. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  The structure of stable phases is investigated using first-principle calculations based on the functionals: LDA, GGA and newly developed general-purpose heavily constrained and appropriately normalized meta-GGAfunctional ...
• Instability in multi-valley semiconductors in external electric and magnetic fields 

  Hasanov, E.R.; Khalilova, Sh.G. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  It is theoretically proved that the excited wave in two-valley semiconductors is growing. It is indicated that the directions of external fields play an essential role for the appearance of growing waves in the sample. ...
• Study of the scalar-fermionic model containing linear lagrangian fields of matter within the framework of minimal coupling 

  Tsyba, P.Yu.; Altayeva, G.S.; Razina, O.V. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  In this article, we study a model of the universe with the scalar field and the fermionic field interacting via a Yukawa-type potential. In the model, the component contributions of each of the fields are determined to ...
• Effect of ZnO in various alcohols on photoelectric characteristics of OSC 

  Seisembekova, T.E.; Aimukhanov, A.K.; Ilyassov, B.R.; Valiev, D.; Zeinidenov, A.K.; Zhakhanova, A.M. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  The paper presents the results of a study of the effect of alcohols on the electron transport of the ETL layer of a ZnO polymer solar cell with an inverted structure. To obtain films, zinc acetate was dissolved under ...
• Influence of zinc oxide morphology on its photocatalytic properties 

  Tolubayeva, D.B.; Gritsenko, L.V.; Kedruk, Y.Y.; Mustafina, K.K.; Aitzhanov, M.B.; Abdullin, Kh.A. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  The rapid development of industry, in addition to the positive impact, has led to environmental problems. The release of polluting waste containing substances such as dyes, pesticides, heavy metals and pharmaceutical waste ...
• Microstructure and mechanical properties of HA/Ti composite coatings applied by detonation spraying 

  Sagdoldina, Zh.B.; Baizhan, D.R.; Rakhadilov, B.K.; Buitkenov, D.B.; Berdimuratov, N.E.; Zhaparova, M.S. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  This work presents the results of experimental studies of the structure and mechano-tribological properties of composite coatings based on hydroxyapatite (HA) and titanium in different ratios (wt. %): 30HA-70Ti, 50HA-50Ti, ...
• Effect of the thickness and surface interface of In2O3 films on the transport and recombination of charges in a polymer solar cell 

  Omarbekova, G.I.; Аimukhanov, A.K.; Ilyassov, B.R.; Аlexeev, A.M.; Zeinidenov, A.K.; Zhakanova, A.M. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  Indium oxide films were obtained by spin coating from a solution of indium nitrate in ethylene glycol followed by annealing at 300 °C. The influence of the thickness and surface interface of In2O3 films on the optical ...
• Study of electrophysical properties of beryllium ceramics with the addition of microand nanoparticles of titanium dioxide 

  Pavlov, A.V.; Zhilkashinova, A.M.; Gert, S.S.; Magazov, N.M.; Turar, Zh.S.; Nabioldina, A.B. (Karagandy University of the name of acad. E.A. Buketov, 2023-06-30)

  In the present paper the research results of influence of nanoparticles TiO2 additions in the range 0,1 — 2,0 wt. % on electrophysical properties of oxide-beryllium ceramics (BeO + TiO2) made of micropowders are presented. ...
• Theoretical foundations of the construction of the operation of heat flow devices 

  Kissabekova, P.A.; Karabekova, D.Zh.; Khassenov, A.K.; Kucheruk, V.Yu.; Kudussov, A.S.; Kyzdarbekova, Sh.S. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  Numerous studies show that non-destructive testing methods satisfy most of the requirements of technical diagnostics of heating networks and technological facilities. Methods of non-destructive testing are based on the ...
• Mitigation of the effect of variations in the electrical conductivity of the material via two-frequency eddy current testing of the thickness of the electrically conductive wall under significantly varying influence parameters 

  Goldsteyn, A.E.; Abakumov, Kh.Kh. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  The paper analyzes feasibility of the two-frequency eddy current method for measuring the thickness of an electrically conductive wall under significantly varying test and influence parameters of the test object — ...
• Numerical modeling and calculation of heat transfer between heat carriers in heat exchangers 

  Kurmanova, D.Y.; Jaichibekov, N.Zh.; Karpenko, A.G.; Volkov, К.N. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  Heating of oil and oil products is widely used to reduce energy loss during transportation. An approach is being developed to determine the effective length of the heat exchanger and the temperature of the cold heat ...
• Comparative study of evolution of structured flows at boundary of the regime change “diffusion — concentration convection” in isothermal multicomponent mixing in gases by techniques of visual and numerical analysis 

  Kossov, V.N.; Krasikov, S.A.; Belov, S.M.; Fedorenko, O.V.; Zhaneli, M. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  During isothermal multicomponent diffusion process, the number of effects appear that are not observed visually when mixed in binary mixtures. These include occurrence of convective instability with subsequent formation ...
• Investigation of Aerodynamic Characteristics of a Two-Bladed Sailing Wind Turbine 

  Tleubergenova, A.Zh.; Tanasheva, N.K.; Shaimerdenova, K.M.; Botpaev, N.K.; Minkov, L.L.; Kassiyev, S.B. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  The article examines a prototype of a wind turbine with two blades. For experimental work, a mock-up of a sailing wind turbine consisting of two blades was developed. The material of the sail blades was selected according ...
• Nonstandard analysis in electrical engineering. The analysis of the direct current circles with ideal reactive elements. 

  Katsyv, S.; Kukharchuk, V.; Kucheruk, V.; Kulakov, P.; Gribov, M. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  The article proposes the use of ideas and methods of non-standard analysis in the field of theoretical electronics. The article shows that the analysis of DC circuits, including ideal inductances and capacitances, by ...
• Indicatrix of TE and TM- polarized wave velocities in crystal of classes 4mm, 3m, 6mm with magneto-electric effect 

  Tleukenov, S.K.; Suierkulova, Zh.N.; Nurkenov, S.A. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  This work is devoted to the theoretical study of the laws of propagation of electromagnetic waves of TE and TM polarization in anisotropic media belonging to classes 4mm, 3m, 6mm, etc. having a magnetoelectric effect. The ...
• Effect of WS2 nanoparticles on the current-voltage characteristics of a polymer solar cell 

  Rozhkova, X.S.; Aimukhanov, A.K.; Ilyassov, B.R.; Tussupbekova, A.K.; Zeinidenov, A.K.; Alexeev, A.M.; Zhakanova, A.M. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  The paper presents the results of studies of the effect of tungsten disulfide nanoparticles on the optical and electrotransport characteristics of PEDOT: PSS thin films in polymer solar cells. Tungsten disulfide ...
• Effect of Silver Nanoparticles on the Optoelectronic Properties of Graphene Oxide Films 

  Alikhaidarova, E.; Seliverstova, E.; Ibrayev, N. («Академик Е.А. Бөкетов атындағы Қарағанды университеті» КЕАҚ баспасы, 2023-03-30)

  The effect of Ag nanoparticles (NPs) on the optical and optoelectronic properties of films based on graphene oxide has been studied. In the presence of Ag NPs, the morphology, as well as the thickness of graphene oxide films, ...
• Some technological aspects of cleaning pipes of heat exchangers from solid scale deposits 

  Nussupbekov, B.R.; Sakipova, S.E.; Ospanova, D.A.; Kutum, B.B.; Shaimerdenova, K.M.; Bekturganov, Zh.S. (Karagandy University of the name of acad. E.A. Buketov, 2022)

  This article discusses possible solutions to one of the problems associated with the low efficiency of existing thermal power plants. These factors are due to both the depreciation of equipment and the lack of any effective ...

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