Zobrazeno 1 - 10
of 92
pro vyhledávání: '"P. I. Kovalchuk"'
Publikováno v:
Меліорація і водне господарство, Iss 2, Pp 33-44 (2021)
The theory of combined systems of extreme control, which is used in technical systems, was developed and adapted in socio-ecological-economic systems. For example, river basins are such systems. A combined extreme control system has been formalized t
Externí odkaz:
https://doaj.org/article/b1c005c777574acf9fc374d3360347de
Publikováno v:
Меліорація і водне господарство, Iss 1, Pp 23-32 (2021)
The balance method of determining the share of Kryvyi Rig Basin enterprises by the accumulated volume of mine water in the storage pond was considered. The balance method of participation of mining enterprises by the shares of mineral substances was
Externí odkaz:
https://doaj.org/article/2ae4e97faa9d4ebab039e0132e7d43d1
Autor:
V. P. Kovalchuk, P. I. Kovalchuk, M. V. Yatsyuk, R. Yu. Kovalenko, O. S. Demchuk, H. A. Balykhina
Publikováno v:
Меліорація і водне господарство, Iss 1, Pp 37-48 (2020)
For integrated water management in river basins in Ukraine, there is no toolkit for system modeling and selection of management structure in river basins according to environmental and economic criteria, which corresponds to the creation of water man
Externí odkaz:
https://doaj.org/article/7872d2139d4e46cfa2b95c0832250481
Autor:
V. I. Rozhko, P. I. Kovalchuk
Publikováno v:
Меліорація і водне господарство, Vol 103, Iss 1, Pp 32-36 (2016)
Проведено аналіз якості води каналу Дніпро-Донбас для питного водокористування за рівнями ГДК речовин. Проаналізовано значення середн
Externí odkaz:
https://doaj.org/article/85f687bc0baf43228f4d28dcc49c9783
Publikováno v:
Electrical engineering & Electromechanics, Vol 2024, Iss 3, Pp 11-21 (2024)
Introduction. A special category among induction machines with a massive rotor is occupied by the class of multifunctional electromechanical energy converters, which are integrated with the links of technological processes Problem. The exchange of re
Externí odkaz:
https://doaj.org/article/9f51a1e42257454a8f83b261635b581a
Autor:
Jan V. Puhalsky, Anastasia I. Kovalchuk, Svyatoslav I. Loskutov, Nikolay I. Vorobyov, Anatoly I. Osipov, Yuri V. Kosulnikov, Andrey P. Kozhemyakov, Yuriy V. Laktionov
Publikováno v:
RUDN Journal of Ecology and Life Safety, Vol 32, Iss 2, Pp 198-212 (2024)
A large number of agricultural lands are located in close proximity to large cities, and therefore industrial enterprises and highways, which leads to inevitable soil contamination with heavy metals, of which cadmium is the most toxic. Also, due to a
Externí odkaz:
https://doaj.org/article/a2aa477c2f6d479b90180b23e9554ee5
Autor:
Olena P. Shevchenko, Pavlo V. Bardov, Andrii A. Borysenko, Anna M. Antonenko, Sergii T. Omelchuk, Olexandr I. Kovalchuk, Olena V. Dema
Publikováno v:
Клінічна та профілактична медицина, Iss 3, Pp 82-88 (2024)
The skin is the most vulnerable organ when spraying pesticides on fields. Farmers are also exposed to pesticides during mixing, loading of pesticides, and when cleaning equipment and disposing of empty containers. The aim. To study and analyze the
Externí odkaz:
https://doaj.org/article/563f8b906e6d424b8c7f1f7e71782797
Autor:
I. Kovalskyi, L. Kovalska, A. Druzhbiak, I. Kovalchuk, A. Boyko, V. Zhmur, R. Havdan, М. Druzhbiak, D. Perig, I. Lunyk, L. Fiialovych, O. Petryshak, G. Paskevych, B. Bogdan, I. Leshchyshyn
Publikováno v:
Regulatory Mechanisms in Biosystems, Vol 15, Iss 2, Pp 300-305 (2024)
The productivity of bee colonies mostly depends on the influence of exogenous factors. The most significant ones include: the presence of a honey base, climatic conditions, environmental temperature, etc. The stability of microclimate indicators in t
Externí odkaz:
https://doaj.org/article/d5ae4dd7bebb465bb4f9155d0b84ccf3
Autor:
V. I. Kovalchuk
Publikováno v:
Âderna Fìzika ta Energetika, Vol 25, Iss 1, Pp 13-18 (2024)
Within the framework of eikonal approximation and the double folding model, a formalism for calculating the inclusive spectra of particles emitted from the deuteron breakup reaction is proposed. The spectra of protons from the reaction 2H(d,p) at an
Externí odkaz:
https://doaj.org/article/78c5a5d925414efb8d7999409f17fba0
Autor:
I. S. Moisei, M. G. Povod, O. G. Mykhalko, B. V. Gutyj, T. V. Verbelchuk, S. P. Verbelchuk, V. V. Koberniuk, T. I. Kovalchuk
Publikováno v:
Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки, Vol 26, Iss 100, Pp 16-26 (2024)
The article examined the dependence of sow productivity, the growth rate of suckling piglets, their weight at transfer to rearing, the consumption of precursor feeds, and their costs on dry and liquid feeding systems for piglets in the suckling perio
Externí odkaz:
https://doaj.org/article/93cc1e67525a4cd5af7b02501434542a