Mechanical Power of DC Motors with Polygarmonic Power Supply

Autor: Kovalov V, Kovalova Yu., Shcherbak I.

Publikováno v: Problems of the Regional Energetics, Vol 53, Iss 1, Pp 1-9 (2022)

The aim of the work is to develop a method for determining the mechanical power of DC mo-tors when they are powered by semiconductor converters, since the harmonic components of the armature current do not create a torque on the shaft. This means tha

Externí odkaz: https://doaj.org/article/3f62da97c3d1403eb8689ea54b8dd209

Гідроксикоричні кислоти в сировині гібридних бородатих півників

Autor: Krechun, A. V., Mykhailenko, O. O., Kovalov, V. M., Buidin, Yu. V., Osolodchenko, T. P.

Publikováno v: Запорожский медицинский журнал; Том 22 № 2 (2020)
Zaporozhye Medical Journal; Vol. 22 No. 2 (2020)

Representatives of Iris genus (Iridaceae) are widespread in almost all continents. According to the literature data, Iris species accumulate secondary metabolites such as flavonoids, isoflavonoids, xanthones, coumarins, hydroxycinnamic acids, saponin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=scientific_p::e258a0d9d21bbe4d6cef4ce78a9b1350
http://zmj.zsmu.edu.ua/article/view/200632

Investigation of the influence of determining factors on the efficiency indicators of organizational and technological decisions for the reconstruction of industrial buildings

Autor: Kovalov, V.

Publikováno v: Шляхи підвищення ефективності будівництва в умовах формування ринкових відносин; № 43 (2020): Шляхи підвищення ефективності будівництва в умовах формування ринкових відносин (Технічний); 23-31
Ways to Improve Construction Efficiency; № 43 (2020): Ways to Improve Construction Efficiency (Technical); 23-31

In the conditions of a limited number of free land for the construction of objects of different functional purpose in many cities, the task of finding territorial reserves becomes increasingly important. Territories of degraded industrial zones may b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=scientific_p::451c71c79843437db7aaab94436a5478
http://ways.knuba.edu.ua/article/view/198197

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SPECIFITY OF REDEVELOPMENT OF INEFFICIENTLY USED INDUSTRIAL TERRITORIES

Autor: KOVALOV V. V., KULESHCHAK Z. P.

Publikováno v: Vìsnik Pridnìprovsʹkoï Deržavnoï Akademìï Budìvnictva ta Arhìtekturi, Vol 1, Iss 5, Pp 69-74 (2017)

Raising of problem. In modern conditions of urban construction, the problem arises of searching for land for a new building. However, the most attractive land plots from the investment point of view are often occupied, including the industrial plants

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::077ac8fc2d441740b879ce2caafdd403
http://visnyk.pgasa.dp.ua/article/view/129339/124834