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Biodegradable polyhydroxyalkanoates with a different set of valerate monomers: Chemical structure and physicochemical properties / T. G. Volova, N. O. Zhila, E. G. Kiselev [et al.] // Int. J. Mol. Sci. - 2023. - Vol. 24, Is. 18. - Ст. 14082, DOI 10.3390/ijms241814082. - Cited References: 99. - The study was funded by the Russian Science Foundation (project no. 23-64-10007) . - ISSN 1661-6596. - ISSN 1422-0067
Кл.слова (ненормированные):
copolymers -- P(3HB-co-3HV-co-4HV) -- P(3HB-co-3HV-co-3H4MV) -- physicochemical properties -- thermal behavior -- isothermal crystallization -- spherulites formation rate -- morphology
Аннотация: The properties, features of thermal behavior and crystallization of copolymers containing various types of valerate monomers were studied depending on the set and ratio of monomers. We synthesized and studied the properties of three-component copolymers containing unusual monomers 4-hydroxyvalerate (4HV) and 3-hydroxy-4-methylvalerate (3H4MV), in addition to the usual 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV) monomers. The results showed that P(3HB-co-3HV-co-4HV) and P(3HB-co-3HV-co-3H4MV) terpolymers tended to increase thermal stability, especially for methylated samples, including an increase in the gap between melting point (Tmelt) and thermal degradation temperature (Tdegr), an increase in the melting point and glass transition temperature, as well as a lower degree of crystallinity (40–46%) compared with P(3HB-co-3HV) (58–66%). The copolymer crystallization kinetics depended on the set and ratio of monomers. For terpolymers during exothermic crystallization, higher rates of spherulite formation (Gmax) were registered, reaching, depending on the ratio of monomers, 1.6–2.0 µm/min, which was several times higher than the Gmax index (0.52 µm/min) for the P(3HB-co-3HV) copolymer. The revealed differences in the thermal properties and crystallization kinetics of terpolymers indicate that they are promising polymers for processing into high quality products from melts.

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk 660036, Russia
Basic Department of Biotechnology, School of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av., Krasnoyarsk 660041, Russia
L.V. Kirensky Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/38 Akademgorodok, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Volova, Tatiana G.; Zhila, Natalia O.; Kiselev, Evgeniy G.; Sukovatyi, Aleksey G.; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Shishatskaya, Ekaterina I.
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    Carbon double coated Fe3O4@C@C nanoparticles: Morphology features, magnetic properties, dye adsorption / C. R. Lin, O. S. Ivanova, I. S. Edelman [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 3. - Ст. 376, DOI 10.3390/nano12030376. - Cited References: 44. - The work was supported financially by the Russian Foundation for Basic Research, Grant No. 19-52-52002 and Ministry of Science and Technology of Taiwan, Grants MOST No. 108-2923-M-153-001-MY3 and No. 109-2112-M-153-003-. The support was obtained also from the Joint Scientific Center of the Siberian Federal University supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the Transmission Electron Microscopy studies were carried out . - ISSN 2079-4991
   Перевод заглавия: Наночастицы Fe3O4@C@C с двойным углеродным покрытием: Морфологические особенности, магнитные свойства, адсорбция красителей

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
SOLID-PHASE EXTRACTION
FE3O4 NANOPARTICLES
PROFILE REFINEMENT
Кл.слова (ненормированные):
core-shell Fe3O4@C nanoparticles -- core-shell Fe3O4@C@C nanoparticles -- magnetic properties -- dyes adsorption
Аннотация: This work is devoted to the study of magnetic Fe3O4 nanoparticles doubly coated with carbon. First, Fe3O4@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20–30 nm in size were processed in a solution of glucose at 200 °C during 12 h, which led to an unexpected phenomenon – the nanoparticles self-assembled into large conglomerates of a regular shape of about 300 nm in size. The morphology and features of the magnetic properties of the obtained hybrid nanoparticles were characterized by transmission electron microscopy, differential thermo-gravimetric analysis, vibrating sample magnetometer, magnetic circular dichroism and Mössbauer spectroscopy. It was shown that the magnetic core of Fe3O4@C nanoparticles was nano-crystalline, corresponding to the Fe3O4 phase. The Fe3O4@C@C nanoparticles presumably contain Fe3O4 phase (80%) with admixture of maghemite (20%), the thickness of the carbon shell in the first case was of about 2–4 nm. The formation of very large nanoparticle conglomerates with a linear size up to 300 nm and of the same regular shape is a remarkable peculiarity of the Fe3O4@C@C nanoparticles. Adsorption of organic dyes from water by the studied nanoparticles was also studied. The best candidates for the removal of dyes were Fe3O4@C@C nanoparticles. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for cationic dye methylene blue (MB) and anionic dye Congo red (CR). The equilibrium data were more consistent with the Langmuir isotherm and were perfectly described by the Langmuir–Freundlich model.

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Держатели документа:
Natl Pingtung Univ, Dept Appl Phys, Pingtung City 90003, Taiwan.
RAS, FRC KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
RAS, FRC KSC SB, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lin, Chun-Rong; Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Zharkov, S. M.; Жарков, Сергей Михайлович; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Solovyov, Leonid A.; Chen, Ying-Zhen; Tseng, Yaw-Teng; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52002]; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan [108-2923-M-153-001-MY3, 109-2112-M-153-003]; Joint Scientific Center of the Siberian Federal University [FSRZ-2020-0011]; Ministry of Science and Higher Education of the Russian Federation
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Chaotic waveguide-based resonators for microlasers / J. A. Mendez-Bermudez [et al.] // Phys. Rev. B. - 2003. - Vol. 67, Is. 16. - Ст. 161104, DOI 10.1103/PhysRevB.67.161104. - Cited References: 33 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
QUANTUM-CLASSICAL CORRESPONDENCE
   MORPHOLOGY-DEPENDENT RESONANCES
   DIRECTIONAL EMISSION
   OPTICAL CAVITIES
   MICRODISK LASERS
   WAVE CHAOS
   DROPLETS
   PRECESSION
   BILLIARDS
   STATES
Аннотация: We propose the construction of highly directional emission microlasers using two-dimensional high-index semiconductor waveguides as open resonators. The prototype waveguide is formed by two collinear leads connected to a cavity of certain shape. The proposed lasing mechanism requires that the shape of the cavity yield mixed chaotic ray dynamics so as to have the approplate (phase space) resonance islands. These islands allow, via Heisenberg's uncertainty principle, the appearance of quasibound states (QBSs) which, in turn, propitiate the lasing mechanism. The energy values of the QBSs are found through the solution of the Helmholtz equation. We use classical ray dynamics to predict the direction and intensity of the lasing produced by such open resonators for typical values of the index of refraction.

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Держатели документа:
Univ Autonoma Puebla, Inst Fis, Puebla 72570, Mexico
Univ Hradec Kralove, Dept Phys, Hradec Kralove, Czech Republic
Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Mendez-Bermudez, J. A.; Luna-Acosta, G. A.; Seba, P.; Pichugin, K. N.; Пичугин, Константин Николаевич
}
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    Chemically synthesized Cu1-xFexCr2Se4 nanoparticles. Morphology and magnetic properties / C. R. Lin [et al.] // 20th Int. Conf. on Magnetism (ICM-2015) : book of abstracts. - 2015. - Ст. TU.F-P88
   Перевод заглавия: Химически синтезированные наночастицы Cu1-xFexCr2Se4. Морфология и магнитные свойства

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Доп.точки доступа:
Lin, C. R.; Chen, C. C.; Li, O.; Hsu, Hua-Shu; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
}
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Composite magnetic materials based on porous templates with different pores morphology: synthesis and magnetic properties [Текст] / L. A. Chekanova // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013. - P169 . - ISBN 978-5-7444-3124-2

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Denisova, E. A.; Денисова, Елена Александровна; Mel'nikova, S. V.; Мельникова, Светлана Владимировна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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Composition and morphology of Fe-Si interfaces and (Fe/Si)3 multilayer nanostructures / J. Bartolomé [и др.] // 20th Int. Conf. on Magnetism (ICM-2015) : book of abstracts. - 2015. - Ст. WE.J.2_I1

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Доп.точки доступа:
Bartolomé, J.; Badía-Romano, L.; Rubín, J. ; Bartolomé, F.; Magén, C.; Bürgler, D. E.; Rubio-Zuazo, J.; Castro, G. R. ; Varnakov, S. N.; Варнаков, Сергей Николаевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Platunov, M. S.; Платунов, Михаил Сергеевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
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Composition, morphology, properties of coal fly ash microspheres and their application for conditioning liquid radioactive waste / N. N. Anshits [et al.] // International Journal of Nuclear Energy Science and Technology. - 2006. - Т. 2, № 1-2. - С. 8-24 . - ISSN 1741-6361. - ISSN 1741-637X

ГРНТИ

MeSH-главная:

РИНЦ
Держатели документа:
Federal State Unitary Enterprize ‘Mining Chemical Combine’ (MCC)
G.K. Boreskov’s Institute of Catalysis SB RAS (IC SB RAS)
Institute of Chemistry and Chemical Technology,SB RAS (ICCT SB RAS)
L.B. Kirenskii Institute of Physics SB RAS (IP SB RAS)
Доп.точки доступа:
Anshits, N. N. ; Аншиц, Наталья Николаевна; Salanov, A. N.; Vereshchagina, T. A.; Kruchek, D. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Tretyakov, A. A.; Revenko, Y. A.; Anshits, A. G.; Аншиц, Александр Георгиевич
}
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Core-shell iron oxide-carbon nanoparticles modified with Ag. synthesis, morphology, magnetic properties / D. A. Petrov, R. D. Ivantsov, S. M. Zharkov [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. J.P18. - P. 220-221. - Cited References: 2. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project No. 18-42-243021 and by Joint Research Project of Russian Foundation for Basic Research and Ministry of Science and Technology, Taiwan MOST No. 19-52-52002 . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
National Pingtung University, Pingtung County, Taiwan

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Petrov, D. A.; Петров, Дмитрий Анатольевич; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Lin, C.-R.; Tseng, Y.-T.; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
Нет сведений об экземплярах (Источник в БД не найден)
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Core-shell magnetite nanoparticles: morphology, magnetic properties, organic dyes adsorption / O. S. Ivanova, I. S. Edelman, E. S. Svetlitsky [et al.] // International conference "Functional materials" : book of abstracts / ed. V. N. Berzhansky ; org. com. S. G. Ovchinnikov [et al.]. - Simferopol, 2023. - P. 114. - Cited References: 1. - РФН № 23-22-10025

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS,
Siberian Federal University
National Pingtung University, 90003, Pingtung City, Taiwan

Доп.точки доступа:
Berzhansky, V. N. \ed.\; Бержанский, Владимир Наумович; Ovchinnikov, S. G. \org. com.\; Овчинников, Сергей Геннадьевич; Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S. (Edel'man, I. S.); Эдельман, Ирина Самсоновна; Svetlitsky, E. S.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Zharkov, S. M.; Жарков, Сергей Михайлович; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sukhachev, A. L.; Сухачев, Александр Леонидович; Toropova, E. S.; Chun-Rong Lin; Ying-Zhen Chen; "Functional materials", International conference(2023 ; Oct. 2-6 ; Crimea, Foros); Крымский федеральный университет имени В.И. Вернадского
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10.

    Crystal chemistry and luminescence properties of red-emitting CsGd1−xEux(MoO4)2 solid-solution phosphors / P. L. Shi [et al.] // Dalton Trans. - 2014. - Vol. 43, Is. 25. - P. 9669-9676, DOI 10.1039/C4DT00339J. - Cited References: 46. - The present work was supported by the National Natural Science Foundations of China (grant no. 51002146, 51272242), Natural Science Foundations of Beijing (2132050), the Program for New Century Excellent Talents in University of Ministry of Education of China (NCET-12-0950), Beijing Nova Program (Z131103000413047), Beijing Youth Excellent Talent Program (YETP0635), the Fundamental Research Funds for the Central Universities (2-9-2014-044), and the Funds of the State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University (KF201306). V. V. A. gratefully acknowledges the Ministry of Education and Science of the Russian Federation for the financial support. . - ISSN 1477-9226. - ISSN 1477-9234
   Перевод заглавия: Кристаллохимия и люминесцентные свойства твердых растворов люминофоров CsGd1-xEux(MoO4)2, излучающих красный свет

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
WHITE-LIGHT
   VIBRATIONAL PROPERTIES
   HYDROTHERMAL SYNTHESIS
   SINGLE-CRYSTALS
   DIODES
   EFFICIENCY
   PHOTOLUMINESCENCE
   CSGD(MOO4)2
   MORPHOLOGY
   GROWTH
Аннотация: Scheelite related alkali-metal rare-earth double molybdate compounds with a general formula of ALn(MoO4)2 can find wide application as red phosphors. The crystal chemistry and luminescence properties of red-emitting CsGd1−xEux(MoO4)2 solid-solution phosphors have been evaluated in the present paper. A detailed analysis of the structural properties indicates the formation of isostructural scheelite-type CsGd1−xEux(MoO4)2 solid-solutions over the composition range of 0 ≤ x ≤ 1. The photoluminescence emission (PL) and excitation (PLE) spectra, and the decay curves were measured for this series of compounds. The critical doping concentration of Eu3+ is determined to be x = 0.6 in order to realize the maximum emission intensity. The emission spectra of the as-obtained CsGd(1−x)Eux(MoO4)2 phosphors show narrow high intensity red lines at 592 and 615 nm upon excitation at 394 or 465 nm, revealing great potential for applications in white light-emitting diode devices.

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Держатели документа:
China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
RAS, Kirensky Inst Phys, Lab Crystal Phys, SB, Krasnoyarsk 660036, Russia
RAS, Kirensky Inst Phys, Lab Opt Mat & Struct, SB, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Novosibirsk State Univ, Lab Semicond & Dielectr Mat, Novosibirsk 630090, Russia

Доп.точки доступа:
Shi, P. L.; Xia, Zhiguo; Molokeev, M. S.; Молокеев, Максим Сергеевич; Atuchin, V. V.
}
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11.

Effect of molecular weight of sodium polyacrylates on the size and morphology of nickel nanoparticles synthesized by the modified polyol method and their magnetic properties / O. A. Logutenko [et al.] // Eur. Polym. J. - 2018. - Vol. 99. - P. 102-110, DOI 10.1016/j.eurpolymj.2017.12.017. - Cited References: 26. - This work was supported by the Russian Science Foundation, research project No. 15-13-00113. . - ISSN 0014-3057
Кл.слова (ненормированные):
Nickel nanoparticles -- Sodium polyacrylate -- Polyol -- Reduction -- Magnetic properties
Аннотация: Nickel nanoparticles were synthesized by the reduction of nickel chloride with hydrazine hydrate in a polyol medium in the presence of sodium polyacrylates (Na-PA) having molecular weights (Mw) of 1200, 5100 and 8000. The size and morphology of the resulting nickel nanoparticles were characterized by X-ray diffraction, scanning and transmission electron microscopy. Polymers having lower Mw values were found to be more efficient in reducing the nickel particle size. A decrease in the polymer concentrations yielded the smaller particles. Magnetic measurements showed that the as-prepared powders are ferromagnetic and their saturation magnetization and coercivity are size-dependent. Compared with bulk nickel, the nanoparticles exhibit an enhanced coercivity which is due to their small size and a decreased saturation magnetization resulted from the surface oxidation of the powder. The synthesis procedure offers a simple approach to preparing nickel nanopowders on a large scale which could be used as magnetic recording materials, including high-density memory storage devices.

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Держатели документа:
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze, 18, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Academgorodok, 50/12, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Logutenko, O. A.; Titkov, A. I.; Vorob'yov, A. M.; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Semenov, S. V.; Семёнов, Сергей Васильевич; Yukhin, Y. M.; Lyakhov, N. Z.
}
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12.

Effect of synthesis conditions and buffer layers on morphology and phase formation during the growth of an epitaxial Mn5Ge3 film on Si(111) / A. V. Lukyanenko, A. S. Tarasov, I. A. Yakovlev, S. N. Varnakov // VIII Euro-Asian symposium "Trends in magnetism" (EASTMAG-2022) : Book of abstracts / program com. S. G. Ovchinnikov [et al.]. - 2022. - Vol. 1, Sect. : Spintronics and magnetic nanostructures. - Ст. A.P22. - P. 135-136. - Cited References: 8. - Support by Krasnoyarsk Regional Fund of Science is acknowledged . - ISBN 978-5-94469-051-7

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \program com.\; Овчинников, Сергей Геннадьевич; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Tarasov, A. S.; Тарасов, Антон Сергеевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Российская академия наук; Физико-технический институт им. Е.К. Завойского ФИЦ Казанского научного центра РАН; Казанский (Приволжский) федеральный университет; Euro-Asian Symposium "Trends in MAGnetism"(8 ; 2022 ; Aug. ; 22-26 ; Kazan); "Trends in MAGnetism", Euro-Asian Symposium(8 ; 2022 ; Aug. ; 22-26 ; Kazan)
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13.

    Effects of processing parameters on the morphology, structure, and magnetic properties of Cu1-xFexCr2Se4 nanoparticles synthesized with chemical methods / R. D. Ivantsov [et al.] // J. Alloys Compd. - 2015. - Vol. 650. - P. 887-895, DOI 10.1016/j.jallcom.2015.08.017. - Cited References: 36. - The paper was partially supported by the Russian Foundation for Basic Research (grant #14-02-01211), by the President of Russia (grant #NSh-2886.2014.2), and by the Ministry of Education and Science of the Russian Federation (grant #2014/71/1763 in the framework of the state assignment for the Siberian Federal University for 2014-2016). We also thank the Ministry of Science and Technology of Taiwan and the Siberian Branch of RAS (MOST 102-2112-M-153 -002 -MY3) for financial support. . - ISSN 0925-8388
   Перевод заглавия: Влияние параметров получения на морфологию, структуру и магнитные свойства наночастиц Cu1-xFexCr2Se4, синтезированных химическими методами

РУБ Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering
Рубрики:
CuCr2Se4 SINGLE-CRYSTALS
   TRANSPORT-PROPERTIES
   CHROMIUM SPINELS
   NANOSTRUCTURES
   DIFFRACTION
   Li
Кл.слова (ненормированные):
Copper selenide -- Magnetic nanoparticles -- Visible magnetic circular dichroism
Аннотация: Cu1-xFexCr2Se4 nanoparticles with x = 0, 0.2, and 0.4 were synthesized via thermal decomposition of metal nitrate or chloride salts and selenium powder using different precursor compositions and processing details. Single crystalline nano-belts or nano-rods coexist in the synthesized powder samples with hexagon-shaped plates in dependence on the precursor composition. The belts gathered into conglomerates forming "hierarchical" particles. Visible magnetic circular dichroism (MCD) of Cu1-xFexCr2Se4 nanoparticles embedded into a transparent matrix was investigated for the first time. The similarity of the MCD spectra of all samples showed the similarity of the nanoparticles electronic structure independent of their morphology. Basing on the MCD spectral maxima characteristics, electron transitions from the ground to the excited states were identified with the help of the conventional band theory and the multi-electron approach. © 2015 Elsevier B.V.

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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
National Pingtung University, Pingtung City, Pingtung County, Taiwan

Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Edelman, I. S.; Эдельман, Ирина Самсоновна; Zharkov, S. M.; Жарков, Сергей Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Petrov, D. A.; Петров, Дмитрий Анатольевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Lin, C.-R.; Li, O.; Tseng, Y.-T.
}
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14.

    Evolution of morphology and magnetic properties of α-Fe2−xCrxO3 nanoparticles in dependence on Cr concentration / I. S. Edelman, R. D. Ivantsov, C.-R. Lin [et al.] // J. Magn. Magn. Mater. - 2022. - Vol. 564. - Ст. 170101, DOI 10.1016/j.jmmm.2022.170101. - Cited References: 69. - The work was supported financially by the Russian Foundation for Basic Research, Grant № 19-52-52002 and Ministry of Science and Technology of Taiwan, Grants MOST № 108-2923-M-153-001-MY3, № 110-2811-M-153-001 and № 110-2112-M-153-005. The support was obtained also from the Joint Scientific Center of the Siberian Federal University supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the electron microscopy studies were carried out . - ISSN 0304-8853
   Перевод заглавия: Эволюция морфологии и магнитных свойств наночастиц α-Fe2−xCrxO3 в зависимости от концентрации Cr
Кл.слова (ненормированные):
Hematite -- α-Fe2−xCrxO3 -- Morin transition -- Nanorods -- Magnetization -- Magnetic circular dichroism
Аннотация: Hematite, α-Fe2O3, one of the most widely studied magnetic compounds known to mankind since ancient times, has amazing properties and continues to puzzle researchers to this day. In this work, we found exceptionally strong changes in the morphology and magnetic properties of hematite nanoparticles upon doping with rather low concentrations of chromium. Nanoparticles α-Fe2−xCrxO3 with x varied from zero to 0.15 were prepared by solvothermal method using FeCl3·6H2O, CrCl3·6H2O, and 1,2-diaminopropane, (CH2)3(NH2)2, as precursors and temperature 180 °C for 6 h. The X-ray diffraction data showed the presence of only one crystal phase α-Fe2O3 for all x meanings with growing average crystalline size as the x increases. For the parent α-Fe2O3 powdered samples, the transmission electron microscopy revealed very long narrow nanorods with rounded ends that transform into spindles of increasing volume and cross section diameter as the Cr concentration increases. Vibrating sample magnetometry (VSM) and magnetic circular dichroism (MCD) study of the nanoparticles behavior in dependences on temperature and magnetic field revealed many unusual peculiarities. Among them there are strong increase of NPs magnetization with x increase (usually opposite picture is observed), the Morin transition temperature TM dependence on magnetic field, VSM sees the Morin transition in samples with small x only while MCD – in all samples, magnetization field dependences also are different when measured with VSM and MCD, and so on. Qualitative considerations were proposed to explain the observed phenomena.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Applied Physics, National Pingtung University, Pingtung City, 90003, Taiwan
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Lin, C. -R.; Zharkov, S. M.; Жарков, Сергей Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zeer, G. M.; Chen, Y. -Z.; Spivakov, A. A.
}
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15.

    Exploration of structural, vibrational and spectroscopic properties of self-activated orthorhombic double molybdate RbEu(MoO4)2 with isolated MoO4 units / V. V. Atuchin, A. S. Aleksandrovsky, B. G. Bazarov [et al.] // J. Alloy. Compd. - 2019. - Vol. 785. - P. 692-697, DOI 10.1016/j.jallcom.2019.01.013. - Cited References: 42. - The reported study was funded by RFBR according to research projects 16-52-48010, 17-52-53031 and 18-03-00557. Besides, this study was supported by the Ministry of Science and Higher Education of the Russian Federation (project 0339-2016-0007). The work was supported by Act 211 Government of the Russian Federation, contract No 02.A03.21.0011. Additionally, the work was partially supported by the Ministry of Education and Science of the Russian Federation (4.1346.2017/4.6). . - ISSN 0925-8388. - ISSN 1873-4669
   Перевод заглавия: Исследование структурных, колебательных и спектроскопических свойств самоактивированного орторомбического двойного молибдата RbEu(MoO4)2 с изолированными группами MoO4

РУБ Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering
Рубрики:
MORPHOLOGY-CONTROLLED SYNTHESIS
LUMINESCENCE PROPERTIES
Кл.слова (ненормированные):
Rubidium europium molybdate -- Solid state reaction -- Rietveld refinement -- DSC -- Raman luminescence
Аннотация: RbEu(MoO4)2 is synthesized by the two-step solid state reaction method. The crystal structure of RbEu(MoO4)2 is defined by Rietveld analysis in space group Pbcn with cell parameters a = 5.13502(5), b = 18.8581(2) and c = 8.12849(7) Å, V = 787.13(1) Å3, Z = 4 (RB = 0.86%). This molybdate possesses its phase transition at 817 K and melts at 1250 K. The Raman spectra were measured with the excitation at λ = 1064 and 514.5 nm. The photoluminescence spectrum is evaluated under the excitation at 514.5 nm. The absolute domination of hypersensitive 5D0→7F2 transition is observed. The ultranarrow 5D0→7F0 transition in RbEu(MoO4)2 is positioned at 580.2 nm being 0.2 nm blue shifted, with respect to that in Eu2(MoO4)3.

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Держатели документа:
SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
South Ural State Univ, Lab Single Crystal Growth, Chelyabinsk 454080, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.
SB RAS, Kirensky Inst Phys, Lab Coherent Opt, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia.
Buryat State Univ, Ulan Ude 670000, Russia.
Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia.
SB RAS, Inst Semicond Phys, Lab Nanodiagnost & Nanolithog, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys Fed Res Ctr KSC, Lab Mol Spect, Krasnoyarsk 660036, Russia.
SB RAS, Inst Inorgan Chem, Lab Funct Films & Coatings, Novosibirsk 630090, Russia.
SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Siberian Fed Univ, Krasnoyarsk 660079, Russia.
SB RAS, Inst Automat & Elect, Lab Condensed Matter Spect, Novosibirsk 630090, Russia.

Доп.точки доступа:
Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Chimitova, Olga D.; Denisenko, Yuriy G.; Gavrilova, T. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Maximovskiy, Eugene A.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Pugachev, Alexey M.; Surovtsev, Nikolay V.; RFBR [16-52-48010, 17-52-53031, 18-03-00557]; Ministry of Science and Higher Education of the Russian Federation [0339-2016-0007]; Act 211 Government of the Russian Federation [02.A03.21.0011]; Ministry of Education and Science of the Russian Federation [4.1346.2017/4.6]
}
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16.

Ferrihydrite nanoparticles interaction with model lipid membranes. / C. G. Chilom [et al.] // Chem. Phys. Lipids. - 2020. - Vol. 226. - Ст. 104851, DOI 10.1016/j.chemphyslip.2019.104851. - Cited References: 70. - The work was accomplished with the financial support of the 2019 RO-JINR Project Investigation of biogenic and chemically synthesized systems in interaction with biostructures for applied research, Theme 02-1-1107-2011/2019 and of the Romanian National Authority for Scientific Research, CNDI-UEFISCDI, Project numbers: PN 18 09 02 02/2018 and PN 19 06 02 03/2019. The authors are very much indebted to Professor Dr. Aurel Popescu, for very helpful suggestions and permanent encouragement. . - ISSN 0009-3084. - ISSN 1873-2941
Кл.слова (ненормированные):
Ferrihydrite nanoparticles -- Morphology -- Laurdan -- TMA-DPH -- Membrane -- Fluidity
Аннотация: In recent years was observed an increased interest towards the use of metal nanoparticles for various biomedical applications, such as therapeutics, delivery systems or imaging. As biological membranes are the first structures with which the nanoparticles interact, it is necessary to understand better the mechanisms governing these interactions. In the present paper we aim to characterize the effect of three different ferrihydrite nanoparticles (simple or doped with cooper or cobalt) on the fluidity of model lipid membranes. First we evaluated the physicochemical properties of the nanoparticles: size and composition. Secondly, their effect on lipid membranes was also evaluated using Laurdan, TMA-DPH and DPH fluorescence. Our results can help better understand the mechanisms involved in nanoparticles and membrane interactions.

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Department of Electricity, Solid State and Biophysics, Faculty of Physics, University of Bucharest, Magurele, Romania
Department of Life and Environmental Physics, "Horia Hulubei" National Institute of Physics and Nuclear Engineering, Magurele, Romania
Department of Nuclear Physics, "Horia Hulubei" National Institute of Physics and Nuclear Engineering, Magurele, Romania
Joint Institute for Nuclear Research, Dubna, Russia
Moscow Institute of Physics and Technology, Dolgoprudniy, Russia
Siberian Federal University, Krasnoyarsk, Russia
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Chilom, Claudia G.; Zorilă, Bogdan; Bacalum, M.; Bălăşoiu, Maria; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Stolyar, S. V.; Столяр, Сергей Викторович; Tyutyunnicov, Sergey
}
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17.

Myagkov, V. G.
Fractal clusters and self-propagating high-temperature synthesis in thin Al/Ge films / V. G. Myagkov, L. E. Bykova // JETP Letters. - 1998. - Vol. 67, Is. 5. - P. 334-338, DOI 10.1134/1.567669. - Cited References: 14 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
DENSE BRANCHING MORPHOLOGY
   SINGLE-CRYSTAL GROWTH
   AL-GE
   PHASE-SEPARATION
Аннотация: Fractal clusters in amorphous thin films are examples of growth models. The main models are the Witten-Sander model and its modifications. It is believed that fractal patterns are formed in the course of the crystallization of an amorphous phase. It is shown that self-propagating high-temperature synthesis can be initiated in an Al/Ge film system and fractal patterns are formed in the reaction products. It is conjectured that the transition of an amorphous phase to a crystalline phase does not play a substantial role in the appearance of such patterns, while the formation of fractal clusters is determined by self-propagating high-temperature synthesis. (C) 1998 American Institute of Physics. [S0021-3640(98)00605-7].

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Мягков, Виктор Григорьевич
}
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18.

    Influence of the filler particles’ surface morphology on the polyurethane matrix’s structure formation in the composite / T. A. Shalygina, M. S. Rudenko, I. V. Nemtsev [et al.] // Polymers. - 2021. - Vol. 13, Is. 22. - Ст. 3864, DOI 10.3390/polym13223864. - Cited References: 32. - This work was carried out by the team of the scientific laboratory “Intelligent Materials and Structures” within the state assignment of the Ministry of Science and Higher Education of the Russian Federation for the implementation of the project “Development of multifunctional smart materials and structures based on modified polymer composite materials capable to function in extreme conditions” (Project No. FEFE-2020-0015) . - ISSN 2073-4360
   Перевод заглавия: Влияние морфологии поверхности частиц наполнителя на формирование структуры полиуретановой матрицы в композите
Кл.слова (ненормированные):
polyurethane -- surface morphology -- nanoparticles -- nanowires -- core-shell -- molecular mobility -- molecular heterogeneity -- interfacial layers -- boundary layer -- transition layer
Аннотация: This article presents the surface morphology effect of silicon carbide (SiC) particles on the polyurethane binder’s structure formation in a dispersed-filled composite. The difference in the morphology and surface relief of filler particles was ensured by the implementation of plasma chemical modification. As a result of this modification, the filler consisted of core-shell particles characterized by a SiC core and a carbon shell (SiC@C), as well as a carbon shell decorated with silicon nanoparticles (SiC@C/SiNP) or nanos (SiC@C/SiNW). The study of the relaxation properties of polyurethane composites has shown that the strongest limiting effect on the molecular mobility of boundary layer’s chain segments is exerted by a highly developed surface with a complex relief of SiC@C/SiNP and SiC@C/SiNW particles. An empirical method was proposed to find the polymer fractions spent on the formation of the boundary, transition and bulk layers of the polymer matrix in the composite. It was shown that the morphology of the filler particles’ surface does not affect the dependence of the boundary layer thickness on the filler’s volume fraction. However, with an increase in the degree of surface development, the boundary layer thickness decreases.

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Держатели документа:
Smart Materials and Structures Lab., Department of Aircraft, Reshetnev Siberian State University of Science and Technology, 31 KrasnoyarskyRabochy Av., Krasnoyarsk 660037, Russia
L.V. Kirensky Institute of Physics SB RAS, Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50 Akademgorodok, Krasnoyarsk 660036, Russia
Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, Vernadskogo Avenue 86, Moscow 119571, Russia

Доп.точки доступа:
Shalygina, T. A.; Rudenko, M. S.; Nemtsev, I. V.; Немцев, Иван Васильевич; Parfenov, V. A.; Парфенов В. А.; Voronina, S. Y.; Simonov-Emelyanov, I. D.; Borisova, P. E.
}
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19.

    Magnetic and magneto-optical properties of Co-P films prepared by chemical deposition / A. V. Chzhan [et al.] // J. Magn. Magn. Mater. - 2011. - Vol. 323, Is. 20. - P. 2493-2496, DOI 10.1016/j.jmmm.2011.05.024. - Cited Reference Count: 22. - Гранты: This study was supported by the Russian Foundation for Basic Research, Project no. 08-02-00397a and the departmental target program Development of Scientific Potential of Higher Education, 2009-2010, Project no. 2.1.1./4399. - Финансирующая организация: Russian Foundation for Basic Research [08-02-00397a]; departmental target program Development of Scientific Potential of Higher Education [2.1.1./4399] . - OCT. - ISSN 0304-8853
Рубрики:
SPECTROSCOPY
   THICKNESS
   COBALT
Кл.слова (ненормированные):
co-p films -- chemically deposition -- the polar kerr and faraday effects -- hysteresis loops -- chemically deposition -- cop films -- hysteresis loops -- the polar kerr and faraday effects -- chemical deposition -- chemically deposition -- co films -- cop films -- film magnetization -- film surface morphology -- incident light -- magnetic and magneto-optical properties -- magnetic layers -- polar kerr effect -- polar-kerr -- polycrystalline -- underlayers -- chemical analysis -- faraday effect -- hysteresis loops -- kerr magnetooptical effect -- light reflection -- magnetic materials -- optical kerr effect -- palladium -- cobalt
Аннотация: Features in the formation of chemically deposited polycrystalline Co-P films with thicknesses of a few nanometers are established by analyzing film surface morphology and variation in the film magnetization. It is shown that in the thickness range below 30 nm the polar Kerr effect value OK changes nonmonotonically and depends on a wavelength of the incident light. For the films thicker than 30 nm, this value depends weakly on both the thickness and the wavelength. These features in the OK behavior are attributed to the Faraday effect, which is revealed at small thicknesses upon light reflection from the lower surface of a magnetic layer. It is found that the Faraday effect in the Co-P films exceeds that in the Co films by a factor of more than two. This effect is assumed to be caused by the presence of a Pd underlayer in the samples under study. (C) 2011 Elsevier BY. All rights reserved.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Chzhan, A. V.; Patrin, G. S.; Kiparisov, S. Y.; Seredkin, V. A.; Середкин, Виталий Александрович; Burkova, L. V.; Буркова, Людмила Викторовна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич
}
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20.

Magnetic and magnetooptical properties of nanothick polycrystalline Co-P films / A. V. Chzhan [et al.] // Bull. Russ. Acad. Sci.: Phys. - 2012. - Vol. 76, Is. 2. - P. 180-182, DOI 10.3103/S106287381202027X. - Cited References: 9 . - ISSN 1062-8738
Кл.слова (ненормированные):
Co films -- Film surface morphology -- Magnetic and magneto-optical properties -- Magnetic polarizations -- Magneto-optical Faraday effect -- Polycrystalline -- Specific values -- Underlayers -- Faraday effect -- Metallic films -- Phosphorus -- Cobalt
Аннотация: Features of the formation of chemically deposited polycrystalline Co-P films with nanometer thicknesses are established by magnetic measurements and analysis of film surface morphology. It is found that the specific value of the magnetooptical Faraday effect in Co-P films exceeds that in Co films by a factor of more than two. This is attributed to the magnetic polarization of a Pd underlayer. It is shown the Kerr effect in Co films is negligibly influenced by the embedding of phosphorus. © 2012 Allerton Press, Inc.

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Публикация на русском языке Магнитные и магнитооптические свойства поликристаллических пленок Co–P в области нанотолщин // Известия РАН. Серия физическая. - 2012. - Т. 76, № 2. - С. 205-207. - ISSN 0367-6765

Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Chzhan, A. V.; Чжан, Анатолий Владимирович; Patrin, G. S.; Патрин, Геннадий Семёнович; Kiparisov, S. Ya.; Кипарисов, Семен Яковлевич; Seredkin, V. A.; Середкин, Виталий Александрович; Pal'Chik, M. G.; Пальчик, Марина Геннадьевна; Burkova, L. V.; Буркова, Людмила Викторовна
}
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