Отображаемые элементы 81-100 из 249

    • Application of ion modification for alteration of anode materials based on ZnO/CoZn nanostructures 

      Zikirina, Ainur M.; Kozlovskiy, Artem L.; Kenzhina, Inesh E. (Optical Materials: X, 2024)
      During the conducted studies, it was established that the use of ion modification by irradiation with O+ and Ar+ ions makes it possible to elevate the degradation resistance of anode materials due to the effect of vacancy defect creation, the density of which varies with the irradiation fluence. At the same time, the analysis of changes in the band gap and the optical density ...
      2026-03-04
    • Application of EPR spectroscopy method for comparative analysis of structural damage accumulation kinetics in two-phase lithium-containing ceramics 

      Shlimas, Dmitriy I.; Borgekov, Daryn B.; Kozlovskiy, Artem L. (Optical Materials: X, 2025)
      The aim of this study is to determine the differences in the damaged layer degradation kinetics in two-phase lithium-containing ceramics based on Li2ZrO3 and Li4SiO4 compounds in the case of irradiation with protons and helium ions, simulating the gas swelling and blistering processes, as well as the accumulation of radiolysis products in the damaged layer. During the ...
      2026-03-04
    • Annealing of Oxygen-Related Frenkel Defects in Corundum Single Crystals Irradiated with Energetic Xenon Ions 

      Eugene, Kotomin A.; Assylbayev, Ruslan; Baubekova, Guldar; Kudryavtseva, Irina; Kuzovkov, Vladimir N.; Podelinska, Alise; Seeman, Viktor; Shablonin, Evgeni; Lushchik, Aleksandr (Crystals, 2025)
      The recovery of radiation damage induced by 231-MeV xenon ions with varying fluence (from 5 × 1011 to 2 × 1014 cm−2 ) in α-Al2O3 (corundum) single crystals has been studied by means of isochronal thermal annealing of radiation-induced optical absorption (RIOA). The integral of elementary Gaussians (product of RIOA spectrum decomposition) OK has been considered as a concentration ...
      2026-03-04
    • An Edge-Computing-Based Integrated Framework for Network Traffic Analysis and Intrusion Detection to Enhance Cyber–Physical System Security in Industrial IoT 

      Zhukabayeva, Tamara; Ahmad, Zulfiqar; Adamova, Aigul; Karabayev, Nurdaulet; Abdildayeva, Assel (Sensors, 2025)
      Industrial Internet of things (IIoT) environments need to implement reliable security measures because of the growth in network traffic and overall connectivity. Accordingly, this work provides the architecture of network traffic analysis and the detection of intrusions in a network with the help of edge computing and using machine-learning methods. The study uses k-means and ...
      2026-03-04
    • Alkaloid-Based Isoxazolylureas: Synthesis and Effect in Combination with Anticancer Drugs on C6 Rat Glioma Model Cells 

      Mukusheva, Gulim K.; Jalmakhanbetova, Roza I.; Shaibek, Altynay Zh.; Nurmaganbetova, Manshuk S.; Zhasymbekova, Aigerym R.; Nurkenov, Oralgazy A.; Akishina, Ekaterina A.; Kolesnik, Irina A.; Dikusar, Evgenij A.; Terpinskaya, Tatiana I.; Kulchitsky, Vladimir A.; Potkin, Vladimir I.; Pushkarchuk, Alexander L.; Lyakhov, Dmitry A.; Michels, Dominik L. (Molecules, 2024)
      Alkaloid-based urea derivatives were produced with high yield through the reaction of anabasine and cytisine with isoxazolylphenylcarbamates in boiling benzene. Their antitumor activity, in combination with the commonly used five anticancer drugs, namely cyclophosphane, fluorouracil, etoposide, cisplatin, ribomustine with different mechanisms of action, was investigated. Based ...
      2026-03-04
    • Bitumen-Biopolymer Materials Modified with Polylactic Acid with Improved Physical and Chemical Properties 

      Jexembayeva, Assel; Konkanov, Marat; Mamedova, Larisa; Aruova, Lyazat (Advances in Polymer Technology, 2024)
      With the continuous expansion of the global automobile fleet, there is an escalating demand to enhance and maintain current road infrastructure. Given the information provided, there will be a growing demand for bitumen, a key raw material used in the manufacturing of asphalt. Bitumen may account for up to 60% of the total usage in asphalt production. This study aims to determine ...
      2026-03-04
    • Advancements in Carbazole-Based Sensitizers and Hole-Transport Materials for Enhanced Photovoltaic Performance 

      Ibrayeva, Ayagoz; Abibulla, Urker; Imanbekova, Zulfiya; Baptayev, Bakhytzhan; O’Reilly, Robert J.; Balanay, Mannix P. (Molecules, 2024)
      Carbazole-based molecules play a significant role in dye-sensitized solar cells (DSSCs) due to their advantageous properties. Carbazole derivatives are known for their thermal stability, high hole-transport capability, electron-rich (p-type) characteristics, elevated photoconductivity, excellent chemical stability, and commercial availability. This review focuses on DSSCs, ...
      2026-03-04
    • Advanced Waste Management: Fast Pyrolysis Technology with Solid Heat Carrier for Municipal Solid Waste Processing 

      Sabitov, Ayat; Safarov, Ruslan; Salikhov, Ruslan; Petrov, Mikhail; Iskakova, Zhanar; Berdenov, Zharas; Mashan, Togzhan; Kusepova, Lyazat; Kopishev, Eldar; Aibuldinov, Yelaman (Engineered Science, 2025)
      Municipal solid waste (MSW) recycling is critical in addressing the environmental challenges posed by increasing urbanization and waste generation. This study explores the use of fast pyrolysis technology with solid heat carriers for efficient MSW processing. The technology, originally developed for oil shale processing, involves the thermal decomposition of waste in an ...
      2026-03-04
    • Advanced Applications of Polymer Hydrogels in Electronics and Signal Processing 

      Suleimenov, Ibragim; Gabrielyan, Oleg; Kopishev, Eldar; Kadyrzhan, Aruzhan; Bakirov, Akhat; Vitulyova, Yelizaveta (Gels, 2024)
      The current state of affairs in the field of using polymer hydrogels for the creation of innovative systems for signal and image processing, of which computing is a special case, is analyzed. Both of these specific examples of systems capable of forming an alternative to the existing semiconductor-based computing technology, but assuming preservation of the used algorithmic ...
      2026-03-04
    • Adsorption of Bichromate and Arsenate Anions by a Sorbent Based on Bentonite Clay Modified with Polyhydroxocations of Iron and Aluminum by the “Co-Precipitation” Method 

      Kussainova, Bakytgul; Tazhkenova, Gaukhar; Kazarinov, Ivan; Burashnikova, Marina; Nurlybayeva, Aisha; Seitbekova, Gulnaziya; Kantarbayeva, Saule; Murzakasymova, Nazgul; Baibazarova, Elvira; Altynbekova, Dinara; Shinibekova, Assem; Bazarkhankyzy, Aidana (Molecules, 2024)
      The physicochemical properties of natural bentonite and its sorbents were studied. It has been established the modification of natural bentonites using polyhydroxoxides of iron (III) (mod.1_Fe_5-c) and aluminum (III) (mod.1_Al_5-c) by the “co-precipitation” method led to changes in their chemical composition, structure, and sorption properties. It was shown that modified ...
      2026-03-04
    • Ab Initio Study on the Vibrational and Electronic Properties of Radiation-Induced Defects in Potassium Bromide 

      Platonenko, Alexander; Pankratov, Vladimir; Kotomin, Eugene A.; Dauletbekova, Alma; Popov, Anatoli I. (Crystals, 2024)
      The vibrational and electronic properties of several basic radiation defects in potassium bromide are computed at the quantum mechanical level using a periodic supercell approach based on hybrid functionals, an all-electron Gaussian-type basis set, and the CRYSTALcomputer code. The exciton energy in alkali halides is sufficient to create lattice defects, such as F–H Frenkel ...
      2026-03-04
    • Assessment of the Dynamics and Condition of Post-Fire Forest Recovery in the Amankaragay Massif, Kostanay Region, Republic of Kazakhstan 

      Ozgeldinova, Zhanar; Zhanguzhina, Altyn; Mukayev, Zhandos; Berdenov, Zharas; Ulykpanova, Meruert (Journal of Multidisciplinary Applied Natural Science, 2025)
      The study evaluates the dynamics and condition of post-fire forest recovery in the Amankaragay massif of the Kostanay region, Republic of Kazakhstan, which has been subjected to both natural and anthropogenic pyrogenic influences, resulting in structural transformations within the forest ecosystems and pyrogenic succession processes. The objective of this research is to assess ...
      2026-03-04
    • Study of the structural and morphological characteristics of the CdxTeyOz nanocomposite obtained on the surface of the CdS/ ZnO heterostructure by the SILAR method 

       Suchikova, Yana; Kovachov, Sergii ; Bohdanov, Ihor ; Karipbaev, Zhakyp T. ;  Pankratov, Vladimir; Popov, Anatoli I.  (Applied Physics A, 2023)
      CdxTeyOz nanocomposite flms were grown by the SILAR method on the CdS/ZnO surface during cyclic processing in precursor solutions followed by removal of excess reagent from the surface of the substrate by washing in hydrogen peroxide. To stabilise the surface states and saturate with oxygen, the surface was annealed in a difusion furnace. XRD, RAMAN, and SEM analyses were ...
      2024-09-25
    • Comparison of Sputter-deposited Single and Multilayer Electrolytes based on Gadolinia-doped Ceria and Yttriastabilized Zirconia for Solid Oxide Fuel Cells 

      Solovyev, Andrey A.; Rabotkin, Sergey V.; Kuterbekov, Kairat А.; Koketay, Temirgaly A.; Nurkenov, Serik А.; Opakhai, Serikzhan; Shipilova, Anna V.; Ionov, Igor V.; Eliseeva, Galina M. (International Journal of Electrochemical Science, 2020)
      Single and multilayer electrolytes for anode-supported solid-oxide fuel cells (SOFCs) have been prepared by reactive magnetron sputtering and their electrochemical properties have been investigated. Electrolyte layers based on gadolinia-doped ceria (GDC) and yttria-stabilized zirconia (YSZ) were formed on NiO/YSZ substrates. The cells with single (YSZ), double (YSZ-GDC) and ...
      2024-09-25
    • Wet Chemical Synthesis of AlxGa1−xAs Nanostructures: Investigation of Properties and Growth Mechanisms 

      Suchikova, Yana; Kovachov, Sergii; Bohdanov, Ihor; Konuhova, Marina; Zhydachevskyy, Yaroslav; Kumarbekov, Kuat; Pankratov, Vladimir; Popov, Anatoli I. (Crystal, 2024)
      This study focuses on the wet chemical synthesis of AlxGa1−xAs nanostructures, highlighting how different deposition conditions affect the film morphology and material properties. Electrochemical etching was used to texture GaAs substrates, enhancing mechanical adhesion and chemical bonding. Various deposition regimes, including voltage switching, gradual voltage increase, and ...
      2024-09-24
    • Urbach Rule in the Red-Shifted Absorption Edge of PET Films Irradiated with Swift Heavy Ions 

      Tuleushev, Adil Z.; Harrison, Fiona E.; Kozlovskiy, Artem L.; Zdorovets, Maxim V. (Polymers, 2022)
      This paper presents a new analysis of the experimental transmission spectra of polyethylene terephthalate (PET) films before and after irradiation with swift heavy ions (SHI) films, as reported previously by the authors. It is shown that the absorption edge red shift for irradiated films contains two regions of exponential form, one of which is located in the UV region and the ...
      2024-09-24
    • Thermodynamics of chalcocite dissolving in solutions of flotation reagents 

      Shlyapov, R.M.; Amerkhanova, Sh.K.; Uali, А.S.; Omarbekov, T.B.; Belgibayeva, D.S. (Bulletin of the University of Karaganda – Chemistry, 2022)
      This work describes the formation of the ionic composition of the sorption layer during the concentration of copper-lead and pyrite-copper-zinc ore. The thermodynamics of the sorption layer of a sulfhydryl collector (sodium diisobutyl thiophosphate and potassium butyl xanthate) on the surface of chalcocite under various conditions of its oxidation has been studied using pH- ...
      2024-09-24
    • Theoretical Study of Charge Mobility Properties of Complexes Si(DPP)(CH3)2 and Si(Bzimpy)(CH3)2 

      Uvarova, Irina V.; Aldongarov, Anuar A.; Baitassova, Zhadyra Y. (Eurasian Journal of Chemistry, 2023)
      The direction of organic electronics research is attracting more and more interest from the scientific community. One of the indicators of such interest is the appearance of commercially available products with screens based on organic compounds. Therefore, conducting experimental and theoretical research in this area is an urgent task. Pentacoordination neutral complexes of ...
      2024-09-24
    • Technology of production of polystyrene concrete using solar energy 

      Aruova, Lyazat; Dauzhanov, Nabi; Ospanova, Zhumabeke; Toleubayeva, Shamshygaim; Utkelbaeva, Aizhan (MATEC Web of Conferences, 2018)
      The energy of solar radiation is a powerful energy reserve at the surface of the globe which is about twenty billion kW. This amount of energy is more than 100 times greater than the amount of necessary energy for the whole planet; besides the usage of this powerful energy radiator is not associated with polluting substances that pollute the planet. The usage of solar ...
      2024-09-24
    • Synthesis, Structural Properties, and Resistance to High-Temperature Degradation of Perovskite Ceramics Based on Lanthanum–Strontium Ferrite 

      Borgekov, Daryn B.; Kozlovskiy, Artem L.; Zdorovets, Maxim V.; Shlimas, Dmitriy I. (Inorganics, 2023)
      This work is dedicated to the study of the properties of perovskite ceramics based on lanthanum–strontium ferrite, and to the evaluation of their resistance to long-term thermal aging. As a method for obtaining perovskite ceramics, the method of solid-phase mechanochemical grinding and consequent thermal annealing of the resulting mixtures was chosen. The novelty of the study ...
      2024-09-24