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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin A. S., Masiygin A. N., Molokeev M. S., Khartov S. V.
Заглавие : Atomic layer deposition ZnO on porous Al2O3 nanofibers film
Коллективы : International Scientific Conference on Applied Physics, Information Technologies and Engineering
Место публикации : J. Phys. Conf. Ser. - 2020. - Vol. 1679, Is. 2. - Ст.022072. - DOI 10.1088/1742-6596/1679/2/022072
Примечания : Cited References: 10. - Studies by scanning electron microscopy and X-ray powder diffraction were performed on the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS». The transmission electron microscopy investigations were conducted in the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation
Аннотация: The paper presents the results of the formation and study of the morphological and structural characteristics of the mesoporous ZnO / Al2O3 nanofibers film (ZANF). The deposition of a ZnO layer on Al2O3 nanofibers film (ANF) ~ 1 µm thick was carried out by the method of atomic layer deposition. The morphology of the mesoporous composite layer ZnO / Al2O3 (ZANF) has been studied by scanning and transmission electron microscopy. It is shown that in the process of atomic layer deposition, the ZnO layer grows according to the Stranski-Krastanov mechanism. A ZnO layer less than 5 nm thick gives an island structure in which Al2O3 nanofibers are uniformly coated with ZnO particles, an increase in the ZnO layer thickness to 15 nm demonstrates a continuous coating of Al2O3 nanofibers. The system has a core-shell structure. The resulting composite structures are promising for applications in photocatalysis and gas sensing.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Burmitskikh A. V., Belyaev B. A., Boev N. M., Kleshnina S. A.
Заглавие : Automated measuring system for studying ferromagnetic resonance spectra in the radio frequency range
Коллективы : Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, Уральский симпозиум IEEE по биомедицинской инженерии, радиоэлектронике и информационным технологиям
Место публикации : Ural symposium on biomedical engineering, radioelectronics and information technology (USBEREIT): Proceedings/ Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (2021 ; May 13-14 ; Yekaterinburg (Hybrid event)): IEEE, 2021. - P.0267-0271. - DOI 10.1109/USBEREIT51232.2021.9455019
Примечания : Cited References: 13
Аннотация: The automated system for measuring ferromagnetic resonance spectra in the radio frequency range has been developed for measuring magnetic characteristics of thin films. The system allows measuring the spectrum of ferromagnetic resonance at a frequency of 12 MHz with a field step of 0.01 Oe (constant or variable) and with 0.0125° angle resolution. Automatic determination of the anisotropy field and automatic sensitivity adjustment of the measuring system allows obtaining data from permalloy thin magnetic films samples with thickness less than 50 nm. Measurements can be carried out with different directions of external magnetic fields (in the plane of the TMF sample) and with rotation of the sample in the external magnetic field. This is achieved by the independent automatic rotation of the sample and high-frequency Helmholtz coils. Processing and transmission of the received data in the digital form provides automatic processing and representation of measurement results on the PC screen. The measurement results can be used for TMF study, assessing the quality, rejection and further use in finished devices.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S., Dmitriev D.
Заглавие : Investigation of microstrip band-pass filters based on 2D electromagnetic crystal
Коллективы : Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology
Место публикации : Proceedings - 2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2018: Institute of Electrical and Electronics Engineers Inc., 2018. - P.245-248. - , DOI 10.1109/USBEREIT.2018.8384595
Примечания : Cited References: 14. - This study was supported by the Ministry of Education and Science of the Russian Federation, agreement no. 14.575.21.0142.
Ключевые слова (''Своб.индексиров.''): microstrip filter--2d electromagnetic crystal--strip conductor--amplitude-frequency characteristics--irregular resonator
Аннотация: Electrodynamic numerical analysis of 3D models was used in order to study microstrip filters of 4-th and 6-th order. When constructing 2D microwave structures, irregular resonators with Π-shaped slit in a grounded strip conductor were used. The band-pass filters tuned by manual parametric synthesis have high frequency-selective properties, including extended high frequency stopband.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Lemberg K. V., Boev N. M., Kantyshev A. V., Grican O. B., Shabanov D. A.
Заглавие : Demountable K/Q band coaxial feed for Cassegrain antenna
Коллективы : IEEE International Multi-Conference on Engineering, Computer and Information Sciences 2022
Место публикации : 2022 IEEE International Multi-Conference on Engineering, Computer and Information Sciences, SIBIRCON 2022: IEEE, 2022. - P.1150-1153. - , DOI 10.1109/SIBIRCON56155.2022.10016929
Примечания : Cited References: 11
Аннотация: In this paper demountable K/Q bands feed for satellite communication Cassegrain antenna is reported. The feed is based on the combined coaxial-circular waveguide, in which outer wall of a circular waveguide is used as an inner conductor of a coaxial waveguide. This design allows to simultaneously transmit and receive signals in two widely separated frequency bands. A coaxial joint, which is the key part of the feed, is proposed and described in details. The joint performs several functions. First is to transmit the microwave energy through both waveguides. Second is ensuring the waveguides sealing. And third is ensuring the circular and coaxial waveguides alignment. The joint simulation results demonstrated return loss below-20 dB and insertion loss less than 0.06 dB in 20-21 GHz frequency range (K-band) as well as return loss below-30 dB and insertion loss less than 0.15 dB in 43-45.5 GHz frequency range (Q-band). Mechanical prototype of the joint was manufactured and tested.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Loiko V. A., Konkolovich A. V., Krakhalev M. N., Miskevich A. A., Prishchepa O. O., Zyryanov V. Ya.
Заглавие : Development of scattering media optics methods to calculate optical properties of polymer dispersed liquid crystal films
Коллективы : EuroDisplay conference, Society for Information Displays, Institute of Physics
Место публикации : EuroDisplay 2017: Abstract book. - 2017. - P.27-28
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stebeleva O. P., Kashkina L. V., Petrakovskaya E. A., Nikitin S. L., Dobrosmyslov S. S., Rublev G. V.
Заглавие : Dissipative structures in thin films of cavitation-activated soot suspensions
Коллективы : "Conference on Applied Physics, Information Technologies and Engineering", "Прикладная физика, информационные технологии и инжиниринг", международная конференция
Место публикации : J. Phys. Conf. Ser. - 2019. - Vol. 1399. - Ст.044073. - ISSN 1742-6588, DOI 10.1088/1742-6596/1399/4/044073. - ISSN 1742-6596 (eISSN)
Примечания : Cited References: 8
Предметные рубрики: Engineering and Materials Science
Аннотация: This paper presents analysis of optical images of films obtained by evaporation (293 K) of a thin layer of low-concentrated (1% wt.) aqueous soot suspensions in a Petri dish. Suspensions of wood, fullerene and diamond-containing (after detonation synthesis) soot were prepared using hydrodynamic dispersion in a cavitation mixer with a wedge-shaped cavitator with the rotor's angular velocity of rotation being 10000 rpm. The components of the hydrodynamic dispersion process are turbulent micro-mixing and bubble cavitation. As a result of intense turbulence, carbon suspensions assumed properties of non-equilibrium systems. The images of an optical microscope revealed self-organized dissipative micron-sized structures in the dried films being present there in the form of chain, branched and ring-shaped cluster fractals of various dimensions that look very similar to nanotubes. The self-assembling effect was identified for all the types of suspensions under study. The EPR method was used to study the change in the electronic structure of soot resulting from the exposure to high temperatures and pressures that occur when the cavitation bubbles collapse (cavitational activation). The dynamics of changes in dissipative structures in the process of film drying was monitored.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Stebeleva O. P., Kashkina L. V., Rubleva T. V., Dobrosmyslov S. S., Vshivkova O. A.
Заглавие : Effect of cavitational conditioning of water on stability of coal-water slurry
Коллективы : International Scientific Conference on Applied Physics, Information Technologies and Engineering
Место публикации : J. Phys. Conf. Ser. - 2020. - Vol. 1679, Is. 5. - Ст.052045. - DOI 10.1088/1742-6596/1679/5/052045
Примечания : Cited References: 13
Аннотация: Coal-water slurry (CWS) is the basis of modern alternative fuel - coal-water fuel (CWF). To produce stable coal-water slurry, i.e. coagulation and separation is an important technological problem. The paper studies CWS the disperse part of which is fine brown Kansk-Achinsk coal, the dispersive part is distilled water. Effect of cavitational conditioning on CWS stability has been studied. The efficiency was for the first time studied by magnetic resonance tomography (MRT). In the experiment spin-lattice relaxation time profiles T1 were recorded along the central vertical axis of the samples. T1 dynamics correlates well with the local density of CWS solid phase. MRT data was sequentially interpreted with rheological characteristics of CWS. Feasibility of applying MRT method to find out time and space evolution of CWS has been estimated. The MRT methods has been shown to be efficient in resolution of technological problems to improve consumer properties of the coal-water fuel.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Chekanova L. A., Yaroslavtsev R. N., Ladygina V. P., Tirranen L. S.
Заглавие : Effect of nanoparticles in growth of test - bacteria
Коллективы : International Scientific Conference "Conference on Applied Physics, Information Technologies and Engineering"
Место публикации : J. Phys. Conf. Ser. - 2019. - Vol. 1399. - Ст.022029. - ISSN 1742-6588, DOI 10.1088/1742-6596/1399/2/022029. - ISSN 1742-6596 (eISSN)
Примечания : Cited References: 10
Предметные рубрики: Applied Physics
Аннотация: Confident effect of five magnetic composite nanoparticles (FeP@Ag, FeP@Pd, CoP, NiP, Fe2O3@AГ) on growth of test bacteria colonies (Acinetobacter baumannii, Еscherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus) in five replicates each is considered. Reliable inhibitors of colonies of all five test bacteria were nanoparticles FeP@Ag. CoP nanoparticles are reliable inhibitors of growth of 4 test bacteria (except for test bacteria Escherichia сoli). NiP nanoparticles are reliable inhibitors of growth of 2 test bacteria: Escherichia сoli and Klebsiella pneumoniae. Bacteria Escherichia сoli were most sensitive to the effect of magnetic nanoparticles; and bacteria Pseudomonas aeruginosa and Staphylococcus aureus were most resistant to the effect of magnetic nanoparticles. The prospects of the method are in the possibility of multiple reuse of the magnetic particles with antimicrobial properties for bacterial decontamination of the studied sources of water and removal of magnetic nanoparticles from the treated liquids by electromagnet. The method can find use in water treatment facilities for household, Industrial and medical wastes.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krakhalev M. N., Prishchepa O. O., Feyzer K. A., Sutormin V. S., Loiko V. A., Konkolovich A. V., Miskevich A. A., Zyryanov V. Ya.
Заглавие : Electro-optical response of PDLC films with conical boundary conditions
Коллективы : EuroDisplay international conference, Society for Information Displays, Белорусский государственный университет информатики и радиоэлектроники
Место публикации : EuroDisplay 2019: book of abstracts of International conference. - 2019. - Ст.O-31. - P.63
Примечания : Cited References: 3
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10.

Вид документа : Статья из сборника (том многотомника)
Шифр издания :
Автор(ы) : Zhulkov V. A., Smorgon S. L., Zyryanov V. Ya., Shabanov V. F.
Заглавие : Electrooptical bistability and thermoaddressed information recording in polymer dispersed cholesterics
Коллективы : International liquid crystal workshop on surface phenomena
Место публикации : Proceedings SPIE. - 1996. - Vol. 2731. - P.162-170
Аннотация: The reflection spectra of cholesteric liquid crystals dispersed in polymer and comprising pyrimidine dopes are investigated in the entire temperature range of the mesophase existence. One or several oxyphenyl substituents in an ortho position implemented into a pyrimidine system induce the second reflection region. The reflection curves for different wavelengths corresponding to regions I and II merge with temperature. Thermodynamically equilibrium states of polymer-dispersed cholesterics under the influence of polar pyrimidine dopes are considered. The pyrimidine effect is modulated by the orientational near-surface potential. The existence of two space regions of a spherical droplet with different helix pitches is validated. The natural helix pitch is retained inside the droplet while a new pyrimidine-induced pitch is formed in a layer close to the droplet surface. The results obtained describe the existence of two reflection regions and the temperature behavior of the helix pitch.
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