Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Sergey V. Kuznetsov"'
Autor:
Vitaly A. Tarala, Alexander A. Kravtsov, Sergey V. Kuznetsov, Fedor F. Malyavin, Oleg M. Chapura, Ekaterina A. Brazhko, Lev V. Kozhitov
Publikováno v:
Modern Electronic Materials, Vol 9, Iss 3, Pp 133-144 (2023)
Optical ceramics based on YSAG : Yb : Er with the compositions {Y1.86Yb0.45Er0.09Sc0.6}[Al1.6Sc0.4]Al3O12 and {Y2.26Yb0.45Er0.09Sc0.2}[Al1.0Sc1.0]Al3O12 were fabricated by vacuum sintering from pre-synthesized nanocrystalline powders. A comparative a
Externí odkaz:
https://doaj.org/article/82ea2c0ed8244beebfbde9a43a1a5c6b
Publikováno v:
Mathematics, Vol 12, Iss 3, p 492 (2024)
The utilization of seismic barriers for protection against the hazardous impact of natural or technogenic waves is an extremely promising emerging technology to secure buildings, structures and entire areas against earthquake-generated seismic waves,
Externí odkaz:
https://doaj.org/article/fceeda65c20647f3a3895c6bfbaae0f8
Autor:
Alina I. Khusainova, Alexey S. Nizamutdinov, Nail I. Shamsutdinov, Svetlana Kalinichenko, Damir I. Safin, Marat Gafurov, Elena V. Lukinova, Sergey Kh. Batygov, Sergey V. Kuznetsov, Sergey V. Zinchenko, Pavel V. Zelenikhin, Maksim Pudovkin
Publikováno v:
Materials, Vol 17, Iss 2, p 316 (2024)
The Ce0.5Y0.35Tb0.15F3 nanoparticles with a CeF3 hexagonal structure were synthesized using the co-precipitation technique. The average nanoparticle diameter was 14 ± 1 nm. The luminescence decay curves of the Ce0.5Y0.35Tb0.15F3 nanoparticles (λem
Externí odkaz:
https://doaj.org/article/8be7c28824d54d01a7fdda6c4ec17e6e
Autor:
Lyudmila V. Tarala, Alexander A. Kravtsov, Oleg M. Chapura, Vitaly A. Tarala, Dmitry S. Vakalov, Fedor F. Malyavin, Sergey V. Kuznetsov, Viacheslav A. Lapin, Lev V. Kozhitov, Alena V. Popkova
Publikováno v:
Modern Electronic Materials, Vol 8, Iss 3, Pp 123-130 (2022)
The aim of this work was to study the effect of vacuum sintering conditions and cerium concentration on the optical, luminescent and thermal properties of yttrium-aluminum garnet based ceramics doped with Се3+ cations. Series of ceramic powders wer
Externí odkaz:
https://doaj.org/article/e603e918c7d04e8fbc7bcee6393f3cb4
Comparison of Quantum Yield of Upconversion Nanocrystals Determined by Absolute and Relative Methods
Autor:
Eduard Madirov, Dmitry Busko, Fernando Arteaga Cardona, Damien Hudry, Sergey V. Kuznetsov, Vasilii A. Konyushkin, Andrey N. Nakladov, Alexander A. Alexandrov, Ian A. Howard, Bryce S. Richards, Andrey Turshatov
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 2, Pp n/a-n/a (2023)
Photoluminescence quantum yield (ϕ) is a key parameter of any luminescent material. There are two main ways to determine this value: 1) absolute, which requires calculation of the number of emitted and absorbed photons; and 2) relative, which utiliz
Externí odkaz:
https://doaj.org/article/7725ff0b305148588b4d328c20b4b8f5
Autor:
Alexander A. Alexandrov, Lada A. Petrova, Daria V. Pominova, Igor D. Romanishkin, Maria V. Tsygankova, Sergey V. Kuznetsov, Vladimir K. Ivanov, Pavel P. Fedorov
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 9999 (2023)
Novel tetragonal matrix Ba0.5−xLn0.5NaxF2.5−x with x = 0.08, doped by Yb3+, Ho3+, Er3+, was synthesized by molten salt synthesis (MSS) from nitrate flux. XRD data show that the tetragonal phase with a = 4.122(1) Å, c = 17.672(1) Å is stable in
Externí odkaz:
https://doaj.org/article/695793c861884fa68050c0186b048da2
Autor:
Sergey V. Kuznetsov, Darya S. Yasyrkina, Damir T. Valiev, Sergey A. Stepanov, Alexander A. Alexandrov, Sergey Kh. Batygov, Valeriy V. Voronov, Vasilii A. Konyushkin, Andrey N. Nakladov, Julia A. Ermakova, Pavel P. Fedorov
Publikováno v:
Photonics, Vol 10, Iss 9, p 1057 (2023)
Single-phase samples of the Ba1−xCexF2+x solid solution (x = 0.3–0.4) were synthesized by directional crystallization in the form of single crystals and by co-precipitation from aqueous nitrate solutions using potassium fluoride as a fluorinating
Externí odkaz:
https://doaj.org/article/a5e9d5a5ea874ede97b84bdaa53b48d3
Autor:
Sergey V. Kuznetsov
Publikováno v:
Applied Sciences, Vol 13, Iss 8, p 4740 (2023)
The analysis of propagating an initially harmonic acoustic pulse in a semi-infinite hyperelastic rod obeying the Yeoh strain energy potential reveals attenuation with distance of the wave amplitudes caused by the elastic energy dissipation due to for
Externí odkaz:
https://doaj.org/article/f2e20f3d8caf43b78aae6a9de6f2bfa9
Autor:
Sergey N. Ushakov, Maria A. Uslamina, Aleksandr A. Pynenkov, Vladimir P. Mishkin, Konstantin N. Nishchev, Sergey V. Kuznetsov, Elena V. Chernova, Pavel P. Fedorov
Publikováno v:
Конденсированные среды и межфазные границы, Vol 23, Iss 1, Pp 101-107 (2021)
Using the Bridgman-Stockbarger method, crystals of triple fluoride CaF2-SrF2-BaF2 were grown in a composition range similar to that of CaSrBaF6. The crystals were 10-12 mm in diameter and 50–60 mm in length. The CaSrBaF6 crystal is a new optical ma
Externí odkaz:
https://doaj.org/article/47cec07affea45a4bb0429faaa9d9fa8
Publikováno v:
Journal of New Economy, Vol 21, Iss 4, Pp 131-152 (2021)
The discussion about indicators to be used to monitor the sustainable development in the Russian Federation continues, and their obligatory list has not been approved as yet. The paper explores the indicators available from official statistics, which
Externí odkaz:
https://doaj.org/article/7e3036456761407580fd6bb84db43e87