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18 results on '"Kvaterniuk, Serhii"'

6. RESTORATION OF THE SOUTHERN BUG RIVER ECOSYSTEM BY REMOVING THE BIOMASS OF HIGHER WATER PLANTS.

Author

KVATERNIUK, Serhii M., PETRUK, Vasyl G., FROLOV, Valeriy F., ONYSCHUK, Victoria E., WÓJCIK, Waldemar, PAWŁOWSKI, Lucjan, SMAILOVA, Saule, and KALIZHANOVA, Aliya

Subjects
PLANT-water relationships, BIOMASS, WATER quality, MIRIDAE, ECOLOGICAL assessment, AQUATIC plants
Abstract

The purpose of the study is to analyze the parameters of higher aquatic plants of the Southern Bug River using multispectral methods and a quadcopter, as well as to develop environmental protection measures to improve the ecological state of the river. The location of the Southern Bug River (Ukraine) in the zone of intensive economic activity, the illegal development of a natural backwater strip near the river causes an increased anthropogenic pressure on aquatic ecosystems, which leads to their aggravated eutrophication, one of the features of which is a growing concentration of nutrients. The bioindication of surface water quality using higher aquatic plants, a comprehensive assessment of the impact of all hydromorphological, chemical and physicochemical indicators on their development was carried out. The assessment of the ecological state of water bodies using bioindication with the multispectral method and a quadcopter was carried out. After correcting the measurement results, the parameters of higher water plants in the water body were obtained. By segmenting the water body according to selected indicators, it is possible to determine the integral effect of pollutants in a specific section of the water body. [ABSTRACT FROM AUTHOR]

Published
2021

8. Multispectral ecological control of biomass of phytoplankton in aqueous media in situ using a quadrocopter

Author

Kvaterniuk, Serhii, Petruk, Vasyl, and Vinnytsia National Technical University

Subjects
water, phytoplankton, ecological monitoring, bioindication, multispectral measurements
Abstract

The aim of the work is to improve the method and means of multi-spectral ecological control of phytoplankton biomass in water environments in situ using a quadrocopter with a multi-spectral camera. The instrumental and methodological errors of indirect measurements of phytoplankton biomass in the near-surface layer of the aquatic environment using the developed means of environmental control have been analyzed.

Published
2018

12. Processing multispectral images of the surface of biotissues using fuzzy logic.

Author

PETROV, Oleksandr, POHREBENNYK, Volodymyr, KVATERNIUK, Serhii, KVATERNIUK, Olena, and RAKYTYANSKA, Hanna

Subjects
IMAGE processing, MULTISPECTRAL imaging, FUZZY logic, IMAGE segmentation, REFLECTANCE, INVERSE problems
Abstract

Copyright of Przegląd Elektrotechniczny is the property of Przeglad Elektrotechniczny and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2020
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16. MATHEMATICAL MODELING OF LIGHT SCATTERING IN NATURAL WATER ENVIRONMENTS WITH PHYTOPLANKTON PARTICLES.

Author

Kvaterniuk, Serhii, Pohrebennyk, Volodymyr, Petruk, Vasyl, Kvaterniuk, Olena, and Kochanek, Anna

Subjects
*MATHEMATICAL models, *LIGHT scattering, *PHYTOPLANKTON, *MULTISPECTRAL imaging, *ENVIRONMENTAL policy
Abstract

Multispectral method can be used for applied tasks of ecological control of parameters of water environments in the near-surface layer. With known parameters of aqueous media, it is first necessary to solve the direct problem of calculating their spectral characteristics. The solution of the inverse optical problem, for example, using regression equations, makes it possible to determine the parameters of the medium behind the results of multispectral measurements. The aim of the work is mathematical modeling of multilayered natural water media with suspended phytoplankton particles, which is necessary to determine the contribution of each of the layers to the overall diffuse reflection coefficient in a given spectral range. The method of mathematical modeling of light scattering in aqueous media with suspended particles of phytoplankton consists in calculating the spectral characteristics of each layer, provided that the parameters of the medium are unchanged within the layer. Next, the spectral characteristics of the entire multilayer medium are calculated on the basis of the diffuse transmittance and reflection coefficients of each of the layers. Mathematical modeling of radiation transfer in the near-surface layers of natural aquatic media with suspended phytoplankton particles on the basis of a multilayer structure allows one to solve the inverse problem of determining the parameters of aqueous media, that is, indirectly measure the parameters of water objects that are of interest to environmental control tasks, namely the concentration of phytoplankton particles and ratio of pigments. When modeling the natural aquatic environment with suspended phytoplankton particles, the contribution of each layer to the total coefficient of diffuse reflection on the surface, which is measured by multispectral methods, is studied. In this case, a layer of an aqueous medium is determined, whose contribution to the measurement results will be close to the measurement error. This allows us to determine the maximum depth of the aquatic environment in which it is possible to conduct multispectral measurements of its parameters. [ABSTRACT FROM AUTHOR]

Published
2018
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