Materials Science: Недавние поступления
Отображаемые элементы 321-340 из 559
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Setup for the study of the paramagnetic resonance of neutrons of the first kind
(Eurasian Journal of Physics and Functional Materials, 2018)The experimental setup KOLKHIDA has been designed to study the interactions of polarized neutrons with polarized nuclei, in particular to study the neutron nuclear precession (nuclear pseudomagnetism) and also for studying magnetic properties of crystals. The investigation has been performed at the Frank Laboratory of Neutron Physics, JINR.2025-01-05 -
Selection of mathematical model of on-board capacity energy storage as element of hybrid traction unit of motor car rolling stock
(Journal of measurements in engineering, 2021)The authors of the study work out to determinate of the mathematical model of supercapacitors as an object of an electric traction system capable of providing non-encumbering of obtaining research results and correct reproduction of energy exchange processes in conditions of repeated-short-term modes of traction load operation. In paper, authors make a comparative assessment ...2025-01-05 -
Resource Allocation Approach for Optimal Routing in IoT Wireless Mesh Networks
(IEEE Access, 2021)Information networks organized according to Internet of Things (IoT) mesh topology have received great recognition over the past one and a half to two decades of years. The scale of projects grows from millions of users connected to hundreds of thousands of access points. IoT mesh nodes offer more fascinating regulations linking a variety of networks and radio technologies and ...2025-01-05 -
Research of Structural, Strength and Thermal Properties of ZrO2—CeO2 Ceramics Doped with Yttrium
(Crystals, 2022)Giniyatova, S.G.; Sailaukhanov, N.A.; Nesterov, E.; Zdorovets, M.V.; Kozlovskiy, A.L.; Shlimas, D.I. Research of Structural, Strength and Thermal Properties of ZrO2—CeO2 Ceramics Doped with Yttrium. Crystals 2022, 12, 242. https://doi.org/10.3390/ cryst120202422025-01-05 -
RELATIONSHIP BETWEEN MAGNETIC PROPERTIES AND MICROSTRUCTURE OF FERRITES DURING SINTERING IN RADIATION AND RADIATION-THERMAL CONDITIONS
(Eurasian Physical Technical Journal, 2021)The studies of correlation between magnetic properties and microstructure were conducted on samples of lithium-substituted ferrite, sintered in radiation and radiation-thermal conditions. Radiation-thermal sintering was performed for compacts irradiated with a pulsed electron beam with energy of (1.5–2.0) MeV, beam current per pulse of (0.5-0.9) A, irradiation pulse duration ...2025-01-05 -
Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes
(Polymers, 2021)Membrane distillation (MD) is a rapidly developing field of research and finds applications in desalination of water, purification from nonvolatile substances, and concentration of various solutions. This review presents data from recent studies on the MD process, MD configuration, the type of membranes and membrane hydrophobization. Particular importance has been placed on ...2025-01-05 -
Recent Developments of TiO2-Based Photocatalysis in the Hydrogen Evolution and Photodegradation: A Review
(Nanomaterials, 2020)The growth of industrialization, which is forced to use non-renewable energy sources, leads to an increase in environmental pollution. Therefore, it is necessary not only to reduce the use of fossil fuels to meet energy needs but also to replace it with cleaner fuels. Production of hydrogen by splitting water is considered one of the most promising ways to use solar energy. ...2025-01-05 -
Raman Study of Polycrystalline Si3N4 Irradiated with Swift Heavy Ions
(Crystals, 2021)Zhumazhanova, A.; Mutali, A.; Ibrayeva, A.; Skuratov, V.; Dauletbekova, A.; Korneeva, E.; Akilbekov, A.; Zdorovets, M. Raman Study of Polycrystalline Si3N4 Irradiated with Swift Heavy Ions. Crystals 2021, 11, 1313. https:// doi.org/10.3390/cryst111113132025-01-05 -
Non-destructive neutron structural studies of ancient ceramic fragments of the cultural heritage of the Republic of Kazakhstan
(Eurasian Journal of Physics and Functional Materials, 2022)The structural features of ancient ceramic fragments dating from various historical ages of ancient cultural groups inhabiting the territory of modern Kazakhstan were studied using optical microscopy, neutron diffraction, neutron tomography, and Raman spectroscopy methods. Fragments of ancient pottery were selected from the collection of ancient remains from archaeological ...2025-01-05 -
Non-destructive analysis of materials by neutron imaging at the TITAN facility
(Eurasian Journal of Physics and Functional Materials, 2021)Since 2019, the TITAN neutron radiography and tomography facility have been operating at the WWR-K research reactor. The experimental station is intended for a wide range of applications in various fields of science. Since the launch, several interesting works have been carried out to study the internal features of lithium-ion batteries and geophysical materials. The spatial ...2025-01-05 -
Non-destructive structural studies of ceramic fragments of ancient tribes of Kazakhstan
(Eurasian Journal of Physics and Functional Materials, 2023)The phase composition of several fragments of the ancient ceramic of the early medieval settlement of Asusay and burial ground Eleke Sazy in the modern Republic of Kazakhstan has been studied using neutron diffraction and Raman spectroscopy. The quartz, calcite, and feldspar minerals are dominant phases in the studied ceramic fragments. The fractions of those phases were ...2025-01-05 -
Новый меняющий цвет сорбционный материал для эффективного удаления тяжелых металлов из сточных вод
(Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2024)Актуальность исследования обусловлена необходимостью очистки водных ресурсов от катионов Me(II). Получение действенных и дешевых сорбентов, позволяющих обнаруживать и адсорбировать катионы тяжелых металлов в питьевой или водопроводной воде и параллельно осуществлять систематический мониторинг качества воды в окружающей среде, является одним из приоритетных направлений для очистки ...2025-01-05 -
Neutron transfer and nuclear breakup in 208Pb( 11Li, 9 Li) reaction
(Eurasian Journal of Physics and Functional Materials, 2020)2025-01-05 -
Neutron pick-up reactions in 18O (10 MeV/nucleon) + Ta
(Eurasian Journal of Physics and Functional Materials, 2020)The availability of new radioactive ion beams has broadened the study of nuclear reactions and nuclear structure. The main mechanism to produce the secondary beams is the fragmentation of the projectile. An alternative method for the production of the exotic nuclei is the multinucleon transfer. We measured production cross section for the B, C, N and O isotopes in the reaction ...2025-01-05 -
(Na, Zr) and (Ca, Zr) Phosphate-Molybdates and Phosphate-Tungstates: II–Radiation Test and Hydrolytic Stability
(Materials, 2023)Karaeva, M.E.; Savinykh, D.O.; Orlova, A.I.; Nokhrin, A.V.; Boldin, M.S.; Murashov, A.A.; Chuvil’deev, V.N.; Skuratov, V.A.; Issatov, A.T.; Yunin, P.A.; et al. (Na, Zr) and (Ca, Zr) Phosphate-Molybdates and Phosphate-Tungstates: II–Radiation Test and Hydrolytic Stability. Materials 2023, 16, 965. https:// doi.org/10.3390/ma160309652025-01-05 -
Methods of teaching computer science in the system pedagogical knowledge
(IOP Conference Series: Materials Science and Engineering, 2020)Modernization of education began to wear a permanent, permanent character in the modern world, since the dynamics of changes in the needs of individuals, society and the state for education is steadily growing. For quite a long time, the main subject of the modernization of school education was its content. However, in recent years, it has become increasingly clear that the ...2025-01-05 -
МНОГОКРИТЕРИАЛЬНЫЙ ВЫБОР РЕЖИМОВ РАБОТЫ АГРЕГАТОВ МАГИСТРАЛЬНЫХ ТРУБОПРОВОДОВ ПРИ ТРАНСПОРТИРОВКЕ НЕФТИ ПРИ НЕЧЕТКОЙ ИНФОРМАЦИИ
(Известия Томского политехнического университета. Инжиниринг георесурсов, 2020)исследования обосновывается тем, что при управлении процессами транспортировки нефти по магистральным трубопроводам возникает необходимость определения и выбора оптимальных режимов работы агрегатов нефтепровода с учетом нечеткости некоторой части исходной информации. В этой связи формулировка и решение задач многокритериального выбора эффективных режимов работы технологических ...2025-01-05 -
Monitoring and Forecasting of Water Pollution by Heavy Metals
(IEEE Access, 2023)As a result of anthropogenic impact, significant changes occur in the morphometric, hydrological, chemical and other characteristics of water bodies, which in turn leads to changes in the structure, productivity and condition of aquatic ecosystems. Pollution of water bodies is the result of anthropogenic activities that lead to negative consequences - deterioration of water ...2025-01-05 -
Modelling of transient and steady-state modes of a vertical rotor with an automatic balancing device
(Journal of Vibroengineering, 2021)The authors of the study work out the differential equations of motion of a vertical rotor model on an elastic-dissipative suspension, balanced by a ball-type automatic balancing device. Often, the cross-section of the cavity of the body of the automatic balancing device is rectangular and during rolling the balls have two points of contact, in one of which the balls slide ...2025-01-05 -
Modeling of the Efficiency of the Centrifugal Conical Disk Dispenser of Bulk Materials
(Materials, 2024)Dmytriv, V.; Bembenek, M.; Banha, V.; Dmytriv, I.; Dzienniak, D.; Nurkusheva, S. Modeling of the Efficiency of the Centrifugal Conical Disk Dispenser of Bulk Materials. Materials 2024, 17, 1815. https:// doi.org/10.3390/ma170818152025-01-05