Zobrazeno 1 - 10
of 44
pro vyhledávání: '"N B, Ivanova"'
Publikováno v:
Глобальная ядерная безопасность, Vol 0, Iss 3, Pp 52-61 (2022)
Optimization of the core composition of the pressurized water reactors is associated with the calculation of the temperature fields of heat exchange microcells containing separate fuel elements. Taking into account the radiation-conductive heat trans
Externí odkaz:
https://doaj.org/article/0a58361a9053480197b376fe10ff7e0e
Publikováno v:
Power Technology and Engineering. 54:220-224
A description is presented of the ANSYS Fluent-19.1 finite-element software program for a rigorous mathematical model to study the processes of separating steam moisture that occurs in the steam space of the PGV-1000M steam generator. Calculations of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::955bf7af02dac4839c156529731c5472
https://doi.org/10.1007/s10749-020-01194-y
https://doi.org/10.1007/s10749-020-01194-y
Autor:
N. V. Kazak, Yu. V. Knyazev, L. N. Bezmaternykh, M. S. Platunov, Sergey Ovchinnikov, D. A. Velikanov, N. B. Ivanova, Oleg A. Bayukov
Publikováno v:
Journal of Experimental and Theoretical Physics. 124:623-627
The investigation of mixed Co–Fe ludwigite single crystals shows that their magnetic properties are close to the magnetic properties of Fe3BO5 despite the predominance of cobalt ions. The magnetic properties of Co3 – x Fe x BO5 single crystals wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30935d19cca5df6bb825346b70d5fb8
https://doi.org/10.1134/s106377611703013x
https://doi.org/10.1134/s106377611703013x
Autor:
Alexander D. Vasiliev, José F. Bartolomé, M.S. Platunov, N. B. Ivanova, L. N. Bezmaternykh, Ana B. Arauzo, N. V. Kazak, Sergey Ovchinnikov, Yu. V. Knyazev, Alexey Veligzhanin, Yan V. Zubavichus, Oleg A. Bayukov, K. V. Lamonova
Publikováno v:
physica status solidi (b). 252:2245-2258
Single crystalline MgFeBO_4, Mg_0.5Co_0.5FeBO_4 and CoFeBO_4 have been grown by the flux method. The samples have been characterized by X-ray spectral analysis, X-ray diffraction and X-ray absorption spectroscopy. The X-ray absorption near-edge struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58048ab3fc0021c1522cd42a934b9047
https://doi.org/10.1002/pssb.201552143
https://doi.org/10.1002/pssb.201552143
Autor:
N. B. Ivanova, Yu. V. Knyazev, D. A. Velikanov, L. N. Bezmaternykh, N. V. Kazak, M.S. Platunov, Alexander D. Vasiliev
Publikováno v:
Scopus-Elsevier
Single crystals of Co3O2BO3 with partial (4%) substitution of Co by Cu ions were synthesized by the flux technique. X-ray diffraction and magnetic studies were carried out. The x-ray diffraction measurements show clearly that Cu preferentially occupi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6db1a949702f8c53e5aa25291318d1f1
https://doi.org/10.1063/1.4818633
https://doi.org/10.1063/1.4818633
Autor:
L. N. Bezmaternykh, Oleg A. Bayukov, D. A. Velikanov, A. D. Vasil’ev, Sergey Ovchinnikov, Ya. V. Zubavichus, Yu. V. Knyazev, Evgeniy Eremin, N. V. Kazak, N. B. Ivanova, M. S. Platunov
Publikováno v:
Journal of Experimental and Theoretical Physics. 117:94-107
The crystal structure and magnetic properties of Co3B2O6 single crystals are studied. Orthorhombic symmetry with space group Pnnm is detected at room temperature. The measurements of static magnetization and dynamic magnetic susceptibility reveal two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74e3cb2f307bebd6ba72d9b16eb8ef0d
https://doi.org/10.1134/s1063776113060186
https://doi.org/10.1134/s1063776113060186
Autor:
Alexander D. Vasiliev, N. B. Ivanova, Yu. V. Knyazev, Oleg A. Bayukov, L. N. Bezmaternykh, N. V. Kazak
Publikováno v:
Physics of the Solid State. 55:1175-1179
A concentration series of single crystals of iron-cobalt ludwigites Co3 − x Fe x O2BO3 (x = 0.0125, 0.025, 0.050, 0.10, 1.0) has been synthesized. The structure has been studied using X-ray diffraction and Mossbauer effect. A preferred occupation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce5b32f1301c2e5b6100034439337d52
https://doi.org/10.1134/s1063783413060176
https://doi.org/10.1134/s1063783413060176
Autor:
E. Weschke, K. V. Lamonova, M. S. Platunov, E. Schierle, N. V. Kazak, V. N. Zabluda, N. B. Ivanova, Sergey Ovchinnikov
Publikováno v:
JETP Letters. 96:650-654
The temperature dependences of the X-ray absorption spectra (XAS) and of the spectra of X-ray magnetic circular dichroism (XMCD) are measured near the L 3,2 absorption edges of Co and Fe in ludwigite Co2FeBO5 single crystals. The antiparallel orienta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44e64930af5bb8b19cfe910592024e4c
https://doi.org/10.1134/s0021364012220109
https://doi.org/10.1134/s0021364012220109
Autor:
Yu. V. Knyazev, L. N. Bezmaternykh, Sergey Ovchinnikov, V. I. Nizhankovskii, M. S. Platunov, N. B. Ivanova, N. V. Kazak, Alexander D. Vasiliev
Publikováno v:
Physics of the Solid State. 54:2212-2221
Single crystals of cobalt ludwigite Co3O2BO3 with diamagnetic substitution of Ga3+ ions for a part of the cobalt ions have been grown by the flux method. A detailed investigation of the crystal structure and magnetic properties of the compound has be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e793fddc80e283fab22d7b8cc4ead77
https://doi.org/10.1134/s1063783412110133
https://doi.org/10.1134/s1063783412110133
Autor:
L. N. Bezmaternykh, Yu. V. Knyazev, А.D. Vasiliev, Sergey Ovchinnikov, G. Yu. Yurkin, D.А. Velikanov, M.S. Platunov, N. B. Ivanova, N. V. Kazak
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:923-927
The needle shape single crystals Co 3− x Mn x O 2 BO 3 with ludwigite structure have been prepared. According to the X-ray diffraction data the preferable character of distinct crystallographic positions occupation by Mn ions is established. Magnet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa758d4c7879791e251c33e6f7128414
https://doi.org/10.1016/j.jmmm.2011.07.044
https://doi.org/10.1016/j.jmmm.2011.07.044