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Abstract

The possibility and expediency of estimation of risk factors based on fundamental positions of information and entropy are grounded. In accordance with the principle of addiction, the possibility of using the H-criterion as an indicator of business uncertainty is shown. The algorithm of risk estimation of these investments is offered.
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Bibliography

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[7] A. S. Grinberg, R. M. Kachalov, and V. N. Shander, “Dual management on the base of risk theory in lifelong cycle man-machine system,” in Computer science-89, Minsk, 1989, pp. 891–896.
[8] L. O. Bakaev, “Quantitative methods at investment management,” in KNEU, 2000, pp. 131–151.
[9] A. P. Nesenyuk, “Undetermined dimensions in management with incomplete information,” Moscow: Mir, 1978, pp. 55–64.
[10] C. Shannon, “Works on theory information and cybernetics,” Moscow: Mir, 1963, pp. 54-223.
[11] C. E. Shannon, “Mathematical Theory of Communication,” The Bell System Technical Journal, vol. 27, pp. 379–423 and 623-656, 1948.
[12] A. S. Kovalenko, S. V. Tymchyk, S. V. Kostyshyn, S. M. Zlepkoand W. Wójcik, A. Kalizhanova, A. Burlibay and A. Kozbekova., “Concept of information technology of monitoring and decision-making support,” Proc. of SPIE 10445, pp. 95–101, 2017.
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[15] L. I. Timchenko, “A multistage parallel-hierarchic network as a model of a neuronlike computation scheme,” Cybernetics and Systems Analysis, vol. 36, no. 2, pp. 251–267, 2000.

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Authors and Affiliations

Nataliia B. Savina
1
Nina V. Slyusarenko
2
Maryna S. Yakobchuk
1
Konrad Gromaszek
3
Saule Smailova
4
Kuanysh Muslimov
5

  1. National University of Water and Environmental Engineering, Rivne, Ukraine
  2. Kherson State University, Ukraine
  3. Lublin University of Technology, Lublin, Poland
  4. East Kazakhstan State Technical University named after D.Serikbayev, Ust-Kamenogorsk, Kazakhstan
  5. Kazakh National Research Technical University named after K.I.Satpayev, Almaty, Kazakhstan
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Abstract

Underwater steel structures require periodic maintenance. In the case of vessels, anti-corrosion works are carried out in the shipyard, where very good conditions for applying organic protective coatings can be provided. Very good surface preparation can be obtained by the use of abrasive blasting. The well-prepared metal surface is free from impurities (particularly inorganic salts). Suitable conditions for the application and renovation of coatings are also ensured (creating appropriate climatic conditions, drying the air, setting the appropriate air temperature). However, there are underwater constructions that cannot be transferred above the water level and, therefore, their conservation against corrosion can take place only under the surface of the water, which significantly hinders the execution of renovation works. In this work, protective coatings for underwater application were tested. The application of coatings on selected steel surfaces over and under the water was carried out. Physico-mechanical and electrochemical tests were carried out in order to assess the quality of the obtained corrosion protection. The possible difficulties faced when applying coatings in marine conditions were discussed.

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Authors and Affiliations

J. Orlikowski
A. Jażdżewska
K. Jurak
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Abstract

The paper presents the propagation assessment and power quality parameters improvement system in power distribution grid. In this work main functionalities of the system are described focusing on the individual assessment module. The module is using CIRED/CIGRE C4.109 method which is based on the 10-minutes aggregated data. Three cases of individual emission assessment using real measurement data in the distribution system operator environment ware analyzed. The obtained results confirmed the legitimacy of using 10-minute data to assess the emissions of harmonics.
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Authors and Affiliations

Szymon Barczentewicz
1
Tomasz Rodziewicz
2
Andrzej Bień
1
Andrzej Firlit
1

  1. AGH University of Science and Technology, Poland
  2. TAURON Dystrybucja S.A., Poland

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