Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Anna Kovalenko"'
Publikováno v:
Membranes, Vol 14, Iss 1, p 20 (2024)
This article considers a theoretical analysis of the influence of the main coupled effects and spacers on the transfer of salt ions in electromembrane systems (EMS) using a 2D mathematical model of the transfer process in a desalting channel with spa
Externí odkaz:
https://doaj.org/article/58b7ccf63ef84a16a6dca0c4a5086086
Autor:
Sergey Osipenko, Anton Bashilov, Anna Vishnevskaya, Lidiia Rumiantseva, Anna Levashova, Anna Kovalenko, Boris Tupertsev, Albert Kireev, Eugene Nikolaev, Yury Kostyukevich
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 20, p 15396 (2023)
Mass spectrometry has been an essential technique for the investigation of the metabolic pathways of living organisms since its appearance at the beginning of the 20th century. Due to its capability to resolve isotopically labeled species, it can be
Externí odkaz:
https://doaj.org/article/b8fd9d1ffc544a5abf0ae9d7c6639183
Autor:
Tetiana Smirnova, Kostiantyn Buravchenko, Andrii Shcherban, Eduard Bahdasarian, Anna Kovalenko
Publikováno v:
Сучасні інформаційні системи, Vol 6, Iss 1, Pp 129-133 (2022)
The object of research is the process of improving the network architecture of enterprises in order to further optimize production processes. The subject of research is the design and optimization of structured cabling systems to automate the product
Externí odkaz:
https://doaj.org/article/17dde1ea62a64330969aa6455342be72
Publikováno v:
Mathematics, Vol 11, Iss 16, p 3575 (2023)
This paper describes a mathematical model of an autowave process in a cell with a ferrocolloid. The model is a system of differential coupled equations of the second order and differs from the previously presented model in terms of its original bound
Externí odkaz:
https://doaj.org/article/5824048db1514ae7885b5945d1c34240
Autor:
Yury Kostyukevich, Elena Stekolshikova, Anna Levashova, Anna Kovalenko, Anna Vishnevskaya, Anton Bashilov, Albert Kireev, Boris Tupertsev, Lidiia Rumiantseva, Philipp Khaitovich, Sergey Osipenko, Eugene Nikolaev
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 14, p 11725 (2023)
The administration of low doses of D2O to living organisms was used for decades for the investigation of metabolic pathways and for the measurement of the turnover rate for specific compounds. Usually, the investigation of the deuterium uptake in lip
Externí odkaz:
https://doaj.org/article/cf8931483cbd4dacb3f3b9e52619292c
Publikováno v:
Membranes, Vol 13, Iss 4, p 394 (2023)
In electromembrane systems, the transfer of ions near ion-exchange membranes causes concentration polarization, which significantly complicates mass transfer. Spacers are used to reduce the effect of concentration polarization and increase mass trans
Externí odkaz:
https://doaj.org/article/2ff63f5adc70486f8adf796bfed2a1ce
Publikováno v:
Membranes, Vol 12, Iss 11, p 1125 (2022)
The development of electroconvection in electromembrane systems is a factor that increases the efficiency of the electrolyte solution desalination process. The desalination of the solution, manifested by a change in the distribution of the ion concen
Externí odkaz:
https://doaj.org/article/870cd5977d8e44d387a95c02dd6904da
Publikováno v:
Membranes, Vol 12, Iss 11, p 1047 (2022)
At present, it is customary to consider the overlimit operating modes of electromembrane systems to be effective, and electroconvection as the main mechanism of overlimiting transfer. The breakdown of the space charge is a negative, “destructive”
Externí odkaz:
https://doaj.org/article/8ea24d07c84244d496ce3e7487cd7727
Autor:
Vladimir Chekanov, Anna Kovalenko
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 3, p 1642 (2022)
Magnetic fluid (MF) is a colloidal system consisting of ferromagnetic particles (magnetite) with a diameter of ~10 nm suspended in a dispersion medium of a carrier fluid (for example, kerosene). A distinctive feature of magnetic fluid is the fact tha
Externí odkaz:
https://doaj.org/article/1cdb1ea4e5d14f649c0ecd91088ec309
Autor:
Mykola Babych, Anna Kovalenko
Publikováno v:
Baltic Journal of Economic Studies, Vol 4, Iss 1, Pp 8-15 (2018)
The purpose of the paper is to study the current state of food security of Ukraine in order to identify the problem areas forming the system of food security in the country. Methodology. Assessment of the current state of the food security in Ukraine
Externí odkaz:
https://doaj.org/article/63150467a6e448f4b7a447b268b6260c