Browsing 2021 №2(36) by Issue Date

Now showing items 1-15 of 15

ON THE TRANSITION BETWEEN FERROMAGNETIC AND PARAMAGNETIC STATES IN MESOPOROUS MATERIALS WITH FRACTAL MORPHOLOGY

Shishulin, A.V.; Potapov, A.A.; Shishulina, A.V. (KU Publ., 2021-06-11)

In this paper, we have shown how the presence of pores and pore morphology influence on magnetic phase transition temperatures in mesoporous ferromagnetic materials. Model calculations have demonstrated the possibility ...
SPECTRAL AND LUMINESCENT PROPERTIES OF CARBON QUANTUM DOTS FUNCTIONALIZED WITH N- AND S-CONTAINING GROUPS

Ibrayev, N.Kh.; Dzhanabekova, R.Kh.; Amanzholova, G.S. (KU Publ., 2021-06-11)

In the presented work, carbon quantum dots were obtained by microwave synthesis based on citric acid and L-cysteine. The resulting particles were characterized by electron and probe microscopy, dynamic light scattering and ...
COMBUSTION OF ALUMINUM POWDER-AIR SUSPENSION IN A SWIRL FLOW

Moiseeva, K.M.; Krainov, A.Yu.; Krainov, D.A. (KU Publ., 2021-06-11)

The article is devoted to the numerical solution of the problem of the combustion of powder metal fuel in a combustion chamber with swirling flow. A physico-mathematical model of the flow of an air suspension of aluminum ...
INFLUENCE OF STRUCTURAL FEATURES OF ZNO FILMS ON OPTICAL AND PHOTOELECTRIC CHARACTERISTICS OF INVERTED POLYMER SOLAR ELEMENTS

Zeinidenov, А.К.; Abisheva, А.К.; Ilyassov, B.R.; Aimukhanov, А.К.; Abilmazhinov, S.E. (KU Publ., 2021-06-11)

In this work we investigated the effect of preliminary annealing of zinc acetate solution films on the morphology, structure, optical properties of the formed ZnO films and also on the photovoltaic properties of polymer ...
THERMOACOUSTIC ENGINE AS A LOW-POWER COGENERATION ENERGY SOURCE FOR AUTONOMOUS CONSUMER POWER SUPPLY

Mekhtiyev, A.D.; Sarsikeyev, Y.Z.; Yugay, V.V.; Neshina, Y.G.; Alkina, A.D. (KU Publ., 2021-06-11)

The article deals with the issue of using a thermoacoustic engine as a low-power cogeneration source of energy for autonomous consumer power supply capable of operating on various types of fuel and wastes subject to ...
FEATURES OF STIMULATED EMISSION OF A MEROCYANINE DYE IN THE PORES OF ANODIZED ALUMINUM

Ibrayev, N.Kh.; Afanasyev, D.A.; Omarova, G.S. (KU Publ., 2021-06-11)

The results of the study of the spectral-luminescent properties and the generation of stimulated emission of merocyanine dye molecules in a porous aluminum oxide films are presented. The addition of silver nanoparticles to ...
DETERMINATION OF CRITICAL DOSES OF RADIATION DAMAGE TO ALN CERAMIC UNDER IRRADIATION OF HELIUM AND HYDROGEN IONS

Kozlovskiy, A.L. (KU Publ., 2021-06-11)

The work is devoted to the study of the radiation damage kinetics to heat-conducting, insulating and mechanical properties in polycrystalline ceramics based on aluminum nitride under irradiation of helium and hydrogen ...
ELECTROMIGRATION IN LITHIUM-TITANIUM FERRITE CERAMICS SINTERED IN RADIATION-THERMAL MODE

Surzhikov, A.P.; Маlyshev, A..V.; Lysenko, Е.N.; Sheveleva, E.A.; Stary, O. (KU Publ., 2021-06-11)

The study investigates electro-migration in Li–Ti ferrite ceramic samples sintered in radiation-thermal mode. To reveal radiation effects, similar measurements are performed for samples sintered in thermal mode. The effect ...
STUDY ON THE INFLUENCE OF ELECTRON BEAM ON THE PHYSICOCHEMICAL PROPERTIES OF POLYAMIDE 6

Rakhadilov, B.K.; Akatan, K.; Maulet, M.; Kabdrakhmanova, S.K.; Magazov, N.M. (KU Publ., 2021-06-11)

In this research work has been studied the effect of electron irradiation on the properties and structure of PA6 polyamide. The treatment was carried out with an industrial pulse accelerator in air with an irradiation ...
NUMERICAL INVESTIGATION OF THE OCCURRENCE OF A CONCENTRATION-POLARIZATION LAYER

Manatbayev, R.K.; Kalassov, N.B.; Amankeldi, L.B. (KU Publ., 2021-06-11)

This work describes the appearance of a concentration polarizing boundary layer on the membrane surface during the separation of the H2/CO2 gas mixture. Concentration polarization occurs when the rejection solution accumulates ...
INFLUENCE OF BORINATION, BORON CEMENTATION OF STEEL 45 AND VISCOSITY OF A LUBRICANT ON THE PARAMETERS OF ADHESION BOND IN THE STEEL 45 - 40X SYSTEM

Kubich, V.I.; Cherneta, O.G.; Yurov, V.M. (KU Publ., 2021-06-11)

In the work, the regularities of changes in the shear strength of the adhesive bond τ and the piezoelectric coefficient β in the metal systems "steel 45 - 40X", "steel 45+В-40Х", "steel 45+ВС-40Х" were obtained during physical ...
SATELLITE DATA PROCESSING ALGORITHM IN THE PROCESS OF FORMATION OF THE TIME SERIES OF VEGETATION INDEXES

Vitkovskaya, I.S.; Batyrbayeva, M.Zh. (KU Publ., 2021-06-11)

The diverse spectral indexes computed from the satellite images are used extensively in the world practice of remote sensing of the Earth from space. This approach proved its validity for the satellite monitoring of ...
COMPARATIVE STUDY OF THE EFFECT OF FLAME RETARDANTS ON THE IGNITION TEMPERATURE OF EPOXY COMPOSITES

Amelkovich, Yu.A.; Nazarenko, O.B.; Smirnova, I.N.; Zadorozhnaya, T.A. (KU Publ., 2021-06-11)

The disadvantage of polymeric materials, including epoxy resins, is their increased fire hazard. Reducing the flammability of polymeric materials is a serious problem that needs to be addressed. One of the ways to reduce the ...
ABOUT THE POSSIBILITY OF CREATING AN EFFICIENT ENERGY ANALYZER OF CHARGED PARTICLE BEAMS BASED ON AXIALLYSYMMETRIC OCTUPOLE-CYLINDRICAL FIELD

Kambarova, Zh.T.; Saulebekov, A.O.; Kopbalina, K.B.; Tussupbekova, A.K.; Saulebekova, D.A. (KU Publ., 2021-06-11)

One of the problems in creating systems for energy analysis of charged particles beams is to determine the deflecting field and calculation the shape of the deflecting electrodes. This article is devoted to the study of ...
SCALE-INVARIANT AND WAVE NATURE OF THE HUBBLE PARAMETER

Zhanabaev, Z.Zh.; Ussipov, N.M.; Khokhlov, S.A. (KU Publ., 2021-06-11)

The value of the global Hubble parameter corresponding to astrophysical observations was determined theoretically without using ʌСDM models. A nonlinear fractal model of the connection between the distance to the observed ...

Browsing 2021 №2(36) by Issue Date

Browsing 2021 №2(36) by Issue Date

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