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2 2023

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Information transfer with adaptation to the parameters of the communication channel

Kupchuk Ihor, Voznyak Oleksandr, Burlaka Serhiy, Polievoda Yurii, Vovk Valeriia, Telekalo Natalia, Hontaruk Yaroslav

Przegląd Elektrotechniczny

2023

R. 99, nr 3

194--199

A variety of adaptation algorithms for the data transfer are proposed in order to select the optimal modes under difficult communication conditions. The performed calculations showed the efficiency of using the developed methods for adapting the information transfer device to the parameters of the communication channel. The results of the experimental verification of the work of adaptation algorithms showed the adequacy of theoretical studies with a deviation within 25%.

Zaproponowano różnorodne algorytmy adaptacyjne przesyłania danych w celu doboru optymalnych trybów w trudnych warunkach komunikacyjnych. Przeprowadzone obliczenia wykazały skuteczność wykorzystania opracowanych metod dostosowania urządzenia przekazującego informacje do parametrów kanału komunikacyjnego. Wyniki eksperymentalnej weryfikacji działania algorytmów adaptacyjnych wykazały adekwatność badań teoretycznych z odchyleniem w granicach 25%.

Efficiency of the Use of Lawn Grasses for Biology and Soil Conservation of Agricultural Systems under the Conditions of the Ukraine's Podillia

Pantsyreva Hanna, Vovk Valeriia, Bronnicova Lina, Zabarna Tetiana

Journal of Ecological Engineering

2023

Vol. 24, nr 11

249--256

The aim of this study was to scientifically substantiate the peculiarities of the formation of lawn cultural phytocenoses of the Podillia zone of Ukraine based on the analysis of the qualitative state of the existing grass stand. The conducted research is devoted to biodiversity, namely soil conservation, as well as modern trends in the development of adaptive technologies for growing lawn grasses, which are based on a number of basic directions, taking into account both the features of innovative changes and the technological renewal of mechanization tools, and the main trends in the development of green farming aimed at ensuring the environmental friendliness of the products obtained, soil conservation while ensuring the appropriate levels economic and energy efficiency. The use of lawn grasses as an integral aesthetic decorative element of landscape design is at the same time an ecological and remedial factor of influence on the surrounding natural environment, which is quite widely used in Ukraine and the world. Dense lawn coverings trap dust, increase air humidity, improve the microclimate of the environment due to the phytoncides released by them, thereby improving the air, preventing erosion and improving the agrophysical properties of the soil. Determination of agrophysical soil parameters of total porosity, capillary porosity and aeration porosity was carried out. It was established that the highest quality lawns form a grass stand with a density of more than 120 vegetative shoots per 1 dm-2. The use of all types of plants contributed to the general growth of both the general sparability, including its subcategories, and the sparability of aeration. At the same time, the specified feature of the formation of spar was noted for gray forest soils under the conditions of the experimental field. This ultimately contributed to a decrease in soil density.