Zobrazeno 1 - 10
of 367
pro vyhledávání: '"Pavel P Fedorov"'
Autor:
Pavel A. Popov, Alena A. Zentsova, Ivan A. Novikov, Valery V. Voronov, Elena V. Chernova, Pavel P. Fedorov
Publikováno v:
Конденсированные среды и межфазные границы, Vol 26, Iss 1 (2024)
The thermal conductivity of natural monoliths of calcite, dolomite marble, and limestone from various deposits was measured using the absolute stationary method of longitudinal heat flow in the temperature range of 50–300 K and the dynamic method i
Externí odkaz:
https://doaj.org/article/f44ce3dbf04c41d8b375d3b016d72e09
Autor:
Pavel V. Fedorov
Publikováno v:
Арктика и Север, Vol 49, Iss 49, Pp 239-244 (2022)
The article deals with the economic specifics of the peninsula’s territory, which is closely related to the resources of both the mainland and the ocean. Using the example of the Murmansk Oblast, an approach is proposed to study the industrial deve
Externí odkaz:
https://doaj.org/article/3b2bade0156f4fb892ee9a9a8c9ae172
Autor:
Pavel P. Fedorov, Elena V. Chernova
Publikováno v:
Конденсированные среды и межфазные границы, Vol 25, Iss 2 (2023)
The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of
Externí odkaz:
https://doaj.org/article/faef2c65a7034708907cfba5b4138e88
Publikováno v:
Высшее образование в России, Vol 0, Iss 7, Pp 43-51 (2022)
The article comprehends the history, modern state and development perspectives of the oldest HEI in the Murmansk region – Murmansk State Humanities University (MSHU). Theauthors reflect on the opportunities of transformation of local universities i
Externí odkaz:
https://doaj.org/article/97299cdc8a2b47d4b065d9bb115cf89f
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:
Pavel P. Fedorov, Elena V. Chernova
Publikováno v:
Конденсированные среды и межфазные границы, Vol 24, Iss 4 (2022)
The goal of this work was to study the specific features of obtaining (Zr,Hf)1–xRxO2-0.5x solid solutions through solid-phase sintering and to analyse the correctness of the existing variants of phase diagrams for (Zr, Hf)O2-R2O3 zirconia and hafni
Externí odkaz:
https://doaj.org/article/1cd665ee9cca4758af791aa23d2d0db6
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
Autor:
Vladislav A. Maslov, Sergey B. Kravtsov, Ivan A. Novikov, Vadim A. Usachev, Pavel P. Fedorov, Vladimir B. Tsvetkov, Evgeniya G. Yarotskaya
Publikováno v:
Конденсированные среды и межфазные границы, Vol 24, Iss 1 (2022)
Photonic crystal opal matrices are bulk spatial periodic structures based on amorphous spherical silica particles whose size is compatible with the wavelengths of the visible light spectrum. These structures are very promising and can be used as matr
Externí odkaz:
https://doaj.org/article/d7eec94f92374486830dd4d7bad8d8f0
Autor:
Sergey V. Kuznetsov, Aleksei S. Nizamutdinov, Eduard I. Madirov, Vasilii A. Konyushkin, Andrei N. Nakladov, Valery V. Voronov, Aleksei D. Yapryntsev, Vladimir K. Ivanov, Vadim V Semashko, Pavel P. Fedorov
Publikováno v:
Конденсированные среды и межфазные границы, Vol 22, Iss 2, Pp 225-231 (2020)
The majority of the global market for solar photovoltaic devices is based on silicon technology. It is very important to increase their effi ciency through the use of luminescent coatings, including those converting radiation from the UV-blue region
Externí odkaz:
https://doaj.org/article/02e1d664bfc14279a0e52bc0713202e5