Zobrazeno 1 - 10
of 952
pro vyhledávání: '"S, Kovalev"'
Autor:
S. G. Kovalev, S. S. Kovalev
Publikováno v:
Georesursy, Vol 25, Iss 1, Pp 95-107 (2024)
The article presents the first data on rare earth mineralization in differentiated intrusions on the western slope of the Southern Urals. When studying the mineralogy of the rocks of the Shuida, Misaelga, Ishliy and Lysogorsk complexes, minerals of r
Externí odkaz:
https://doaj.org/article/a4825d68c70147e8bcb2a829b5420fc8
Autor:
S. G. Kovalev, S. S. Kovalev
Publikováno v:
Georesursy, Vol 23, Iss 4, Pp 80-95 (2024)
The article provides materials on the analysis of the chemical composition of silicates and aluminosilicates that make up the differentiated body of the Misaelga complex, which made it possible by calculation methods to restore the thermobaric parame
Externí odkaz:
https://doaj.org/article/9bf8970ae6a940a88d8ab176bd16008c
Autor:
Wahab A.K. Al-Ithawi, Eman S. A. Al-Sammarraie, Artem V. Baklykov, Vadim A. Platonov, Aqeel M.K. Altobee, Nikita S. Glebov, Albert F. Khasanov, Igor S. Kovalev, Igor L. Nikonov, Dmitry S. Kopchuk, Grigory V. Zyryanov
Publikováno v:
Chimica Techno Acta, Vol 11, Iss 3 (2024)
Iptycenes are common building blocks for the small-molecules or polymer-based chemosensors and fluorophores. In addition, iptycene derivatives are widely presented in polymers of intrinsic microporosity (PIMs) as materials for the separation and puri
Externí odkaz:
https://doaj.org/article/147b8449c9884ca2b90b67c46f454100
Autor:
Muthipeedika Nibin Joy, Igor S. Kovalev, Olga V. Shabunina, Sougata Santra, Grigory V. Zyryanov
Publikováno v:
Antioxidants, Vol 13, Iss 10, p 1198 (2024)
A series of 16 (hetero)aryl compounds based on coumarin and equol has been efficiently synthesized by exploring the palladium-catalyzed Suzuki cross-coupling reactions. Polyphenol based on coumarin (4-methyl-7-hydroxy coumarin) was initially converte
Externí odkaz:
https://doaj.org/article/f142c9afebab48b1be9ed706aa61a732
Autor:
Eman S. A. Al-Sammarraie, Wahab A.K. Al-Ithawi, Artem V. Baklykov, Vadim A. Platonov, Aqeel M.K. Altobee, Nikita S. Glebov, Albert F. Khasanov, Igor S. Kovalev, Igor L. Nikonov, Dmitry S. Kopchuk, Irina M. Sapozhnikova, Tamara M. Sabirova, Yanxian Jin, Grigory V. Zyryanov, Vladimir L. Rusinov
Publikováno v:
Chimica Techno Acta, Vol 11, Iss 2 (2024)
Polyvinyl chloride (PVC) plays an important role in industry; however, due to its uncontrolled accumulation in the environment, the methods for its utilization are of high demand. Herein we wish to report an approach for the utilization of PVC via it
Externí odkaz:
https://doaj.org/article/b3a30734ff364669b5a903b3abc89ee2
Autor:
V. S. Kovalev
Publikováno v:
Евразийская интеграция: экономика, право, политика, Vol 17, Iss 3, Pp 15-24 (2023)
This study is aimed at understanding the current state of trade and economic cooperation between the Eurasian Economic Union member states and China and developing a progressive course towards its further intensification through integration advantage
Externí odkaz:
https://doaj.org/article/c771a4e1a039451a9ac04a03f8041322
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 25, Iss 3, Pp 81-92 (2023)
RELEVANCE. Today, the degree of integration of renewable energy sources into the energy system is an indicator of the technological and industrial development of the state. Renewable energy is a driver for the development of the economy, science and
Externí odkaz:
https://doaj.org/article/a460b25d92a94f0c8bc302e2786db6ab
Autor:
Wahab K. A. Al-Ithawi, Albert F. Khasanov, Igor S. Kovalev, Igor L. Nikonov, Dmitry S. Kopchuk, Vadim A. Platonov, Sougata Santra, Grigory V. Zyryanov, Brindaban C. Ranu
Publikováno v:
Chemistry, Vol 5, Iss 2, Pp 978-986 (2023)
Cyanide ions are known to be lethal for insects and mammals and harmful for the environment, and new methods for their selective detection are in high demand. Herein, the mechanosynthesis of simple Schiff’s bases-based probes S1–S3 for visual det
Externí odkaz:
https://doaj.org/article/8593e4653f4449ab884ecd6d044f91d5
Publikováno v:
RUDN Journal of Studies in Literature and Journalism, Vol 28, Iss 1, Pp 137-145 (2023)
The results of a comparative analysis of the functional features of the QAnon theory and the conceptual signs of ARG (games in alternative reality) are displayed. The signs of ARG are designated and given as elements of the reference game model, the
Externí odkaz:
https://doaj.org/article/4690c213d8714236b694ff2af50d07b6
Autor:
Sergey G. Kovalev, Sergey S. Kovalev
Publikováno v:
Записки Горного института, Vol 255, Pp 476-492 (2022)
Materials on geochemistry and ore Fe-Ti-Cr mineralization of rocks composing layered (stratified) bodies of the western slope of the Southern Urals are presented. A detailed analysis showed similarity in the redistribution of REE, noble metals, and F
Externí odkaz:
https://doaj.org/article/149f9ffc5ddf41eb8fecefe1c5fd6f57