Výsledky vyhledávání - "M. O. Marychev"

Group-Theoretical Analysis of Symmetry Transformations on the Example of Some Aquatic Organisms

Autor: D. B. Gelashvili, N. V. Somov, E. V. Chuprunov, A. A. Nizhegorodtsev, V. N. Yakimov, I. N. Markelov, M. O. Marychev

Publikováno v: Biology Bulletin Reviews. 9:203-214

—Group-theoretical analysis of the pseudosymmetry of two-dimensional images of aquatic organisms of the classes Conjugatophyceae, Bacillariophyceae, Acantharia, and Asteroidea and the symmetry transformations in the ontogeny of echinoderms has been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c98bcd238d837993125426a1e2a6c01
https://doi.org/10.1134/s2079086419030058

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Light-emitting hexagonal 9R-Si phase obtained by implantation of Kr+ ions in Si and SiO2/Si

Autor: A. A. Konakov, A. A. Nikolskaya, M. O. Marychev, D. A. Pavlov, A. I. Belov, R. I. Murtazin, A. N. Mikhaylov, D. S. Korolev, D. I. Tetelbaum

Publikováno v: Journal of Physics: Conference Series. 1695:012031

To study the mechanism of a 9R-Si hexagonal phase formation upon ion irradiation of the SiO2/Si system, three types of experimental samples have been investigated by photoluminescence (PL) spectroscopy and transmission electron microscopy (TEM): SiO2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05281195b30e45d6896fa5eda0bb1603
https://doi.org/10.1088/1742-6596/1695/1/012031

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Photoluminescence of silicon at 1235 nm produced by irradiation of SiO2/Si with Kr+ ions and subsequent high-temperature annealing

Autor: R. I. Murtazin, M. O. Marychev, David Tetelbaum, D. S. Korolev, A. A. Nikolskaya, A. A. Konakov, D. A. Pavlov, Alexey Belov, Alexey Mikhaylov

Publikováno v: Surface and Coatings Technology. 386:125496

The search of ways to improve light-emitting properties of silicon is of great importance for modern optoelectronics. In this work, the photoluminescence (PL) properties of the band at λ = 1235 nm, which appears in silicon upon irradiation of the Si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65b1a6dbedabbd8e27161ff435ea790e
https://doi.org/10.1016/j.surfcoat.2020.125496

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Efficient 2.1‐μm lasers based on Tm 3+: Lu 2 O 3 ceramics pumped by 800–nm laser diodes

Autor: M. O. Marychev, A. A. Lagatskii, N G Zakharov, A. A. Novikov, Oleg L. Antipov, N. V. Sakharov, M. V. Kruglova, A.P. Zinoviev, O. N. Gorshkov, H. Yagi

Publikováno v: physica status solidi c. 10:969-973

Structural, optical and spectroscopic properties of Tm3+:Lu2O3 ceramics were studied. CW laser operation at 2068 nm with an output power of up to 34 W and a slope efficiency of 44% was obtained. Q-switched ocsilation with a pulse duration of 100-150

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ae3c81d81cac372700dde9b8690813d
https://doi.org/10.1002/pssc.201300008

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Nanostructured crystals of Sr1−x R x F2+x fluorite phases and their ordering: 6. Microindentation analysis of crystals

Autor: M. Yu. Gryaznov, V. N. Chuvil’deev, S. N. Sulyanov, M. O. Marychev, E. A. Sulyanova, S. V. Shotin, B. P. Sobolev

Publikováno v: Crystallography Reports. 57:144-150

Hardness, crack resistance, brittleness, and effective fracture energy have been studied for crystals of 24 fluorite phases Sr1 − x R x F2 + x (R are 14 rare earth elements (REEs); 0 < x ≤ 0.5) and SrF2 grown by the Bridgman method from a melt. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16440f9e72d724ff5480836d18f8962b
https://doi.org/10.1134/s1063774511060113

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Structural, optical, and spectroscopic properties and efficient two-micron lasing of new Tm3+:Lu2O3ceramics

Autor: O. N. Gorshkov, N. V. Sakharov, A. A. Novikov, N G Zakharov, E. V. Chuprunov, Oleg L. Antipov, S Yu Golovkin, A. P. Kasatkin, A P Zinov'ev, M. O. Marychev, M. V. Kruglova

Publikováno v: Quantum Electronics. 41:863-868

The structural, optical, and spectroscopic properties of new Tm 3+ : Lu2O3 laser ceramics are studied. The average size of a ceramic grain (crystallite) is found to be 540 - 560 nm. The absorp- tion spectrum measured in the near-IR region shows that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::625c87bc3b65be8c8f8a344a6aa85acf
https://doi.org/10.1070/qe2011v041n10abeh014653

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The application of group theory to the description of pseudosymmetry

Autor: M. O. Marychev, N. V. Somov, E. V. Chuprunov, D. B. Gelashvili, A. I. Shirokov, A. A. Nizhegorodtsev

Publikováno v: Biology Bulletin Reviews. 1:185-198

The application of group theory to the description of biological objects’ pseudosymmetry is proposed and substantiated by the example of the rotatory symmetry of actinomorphic and zygomorphic flowers. The problems of biosymmetrics terminology are c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64637ce7f2c4c0527abf00cb84214eda
https://doi.org/10.1134/s2079086411030029

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