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Nikolay S. Ivanov, Arlan Z. Abilmagzhanov, Oleg S. Kholkin and Iskander E. Adelbaev
This article presents the results of the study of the morphological composition of municipal solid waste (MSW) from the landfill of Atyrau city, and the waste?s energy characteristics and presence of microorganisms, including bacteria, fungi and viruses....
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Vladimir Silkin, Alexander Abakumov, Nikolay Esin, Larisa Pautova, Anna Lifanchuk and Alexey Fedorov
The seasonal dynamics of the NE Black Sea phytoplankton follow the following pattern: small diatoms (spring) ? coccolithophorid Emiliania huxleyi (late spring?early summer) ? large diatoms (summer). Our hypothesis states that nitrogen and phosphorus conc...
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Desislava Vlahova-Vangelova, Desislav Balev, Nikolay Kolev, Stefan Dragoev, Evgeni Petkov and Teodora Popova
The increasing production of edible insects on an industrial scale makes it crucial to implement appropriate technologies after harvesting to process safe and high quality insect products. The aim of this work was to compare the impact of different dryin...
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Nikolay Kyurkchiev, Tsvetelin Zaevski, Anton Iliev, Vesselin Kyurkchiev and Asen Rahnev
In this article, we propose some extended oscillator models. Various experiments are performed. The models are studied using the Melnikov approach. We show some integral units for researching the behavior of these hypothetical oscillators. These will be ...
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Nikolay Hinov and Tsvetana Grigorova
The main objective of this article is to propose a rational methodology for designing multi-phase step-down DC-DC converters, which can find applications both in engineering practice and in power electronics education. This study discusses the main types...
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Egor Shiriaev, Nikolay Kucherov, Mikhail Babenko, Vladislav Lutsenko and Safwat Al-Galda
In this paper, a study is carried out related to improving the reliability and fault tolerance of Fog Computing systems. This work is a continuation of previous studies. In the past, we have developed a method of fast operation for determining the sign o...
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Mariya Dushkova, Siyka Kodinova, Velichka Yanakieva, Apostol Simitchiev, Zapryana Denkova and Nikolay Menkov
In this experimental work, the microbiological, physicochemical, organoleptic, and rheological properties of yoghurts produced by ultrafiltered goat?s milk using two volume-reduction ratios and three probiotic starters were studied. It was established th...
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Andrey Kozelkov, Nikolay Galanov, Ilya Semenov, Roman Zhuchkov and Dmitry Strelets
The paper presents the results of studying the effects of droplet diameters on the NACA0012 airfoil ice accretion, which have been obtained in the 3D numerical simulation of icing. To simulate the motion of water droplets as a multiphase medium, the Eule...
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Nikolay Nefedov, Bogdan Tishchenko and Natalia Levashova
An algorithm is presented for the construction of an asymptotic approximation of a stable stationary solution to a diffusion equation system in a two-dimensional domain with a smooth boundary and a source function that is discontinuous along some smooth ...
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Vesselin Kyurkchiev, Anton Iliev, Asen Rahnev and Nikolay Kyurkchiev
In this paper we demonstrate some specialized modules for investigating the dynamics of differential models, an integral part of a planned much more general Web-based application for scientific computing. As ?corrections? in the Lienard differential syst...
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