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320 results on '"Akimov, A. I."'

4. Mathematical Model of the Dynamics of the Balancing Mechanism of the Weighing System of the Batcher

Author

Polyakov, S. I., Akimov, V. I., Polukazakov, A. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Radionov, Andrey A., editor, and Gasiyarov, Vadim R., editor

Published
2023
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7. Application of the Theory of Statistical Hypotheses in Tasks of Automating Technological Processes

Author

Polyakov, S. I., Akimov, V. I., Polukazakov, A. V., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Radionov, Andrey A., editor, and Gasiyarov, Vadim R., editor

Published
2022
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21. Changes in the Growth Rate and Fluorescent and Cytometric Parameters of the Microalga Dunaliella salina (Teod.) at Different Cu2+ Concentrations in the Cultivation Medium.

Author

Akimov, A. I., Solomonova, E. S., Shoman, N. Yu., and Rylkova, A. O.

Subjects
DUNALIELLA salina, FLUORESCENCE yield, COPPER, ALGAL cells, DUNALIELLA, CHLOROPHYLL spectra
Abstract

Changes in the specific growth rate, as well as fluorescent, cytometric, and morphological parameters of the green microalgae Dunaliella salina, have been evaluated in the presence of Cu2+ ions (0–3750 µg/L) in a cultivation medium. The growth rate has been found to be the most sensitive to the copper presence; it decreases at copper concentrations above 150 µg/L, while an increase in the pollutant content to 1500 µg/L or higher results in the death of a microalgal culture. The number of algal cells at the stationary growth phase decreases as the copper content in the medium increases from 150 to 3750 µg/L. According to the results of this study, the efficiency of the algal photosynthetic apparatus is not affected by copper concentrations, which do not cause the death of the culture. A decrease in the values of the maximum fluorescence quantum yield, nonphotochemical quenching, and the maximum relative electron transport rate below the optimal values can be used as an indicator of the lethal impact of the studied pollutant on D. salina. Copper concentrations in the medium equal to 750 µg/L or higher cause the following effects: an increase in cell volume, an increase in the number of spherical cells, plasmalemma deformation and perforation, the predominance of deformed cells of an irregular shape, and a double reduction in the intracellular content of chlorophyll a and the specific yield of fluorescence for chlorophyll a (μg/L). [ABSTRACT FROM AUTHOR]

Published
2023
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23. Application of cavitation technology in the production of fondant sweets.

Author

Zaitseva, L. V., Baulina, T. V., Uskova, Iu A., Pesterev, M. A., and Akimov, A. I.

Subjects
CAVITATION, SYRUPS, CONFECTIONERY, DYNAMIC viscosity, CRYSTAL texture, CHEMICAL properties
Abstract

The article studies the changes in the physical and chemical and organoleptic properties of unglazed creamy fondant sweets caused by the replacement of starch syrup with invert syrups. Acidic invert syrup (IS) and invert syrup using cavitation treatment (IScav) were obtained using technologies developed at VNIIKP. Density, dynamic viscosity, water activity in invert syrups and fondant syrups based on them, were studied using standard methods. The microstructure of fondant masses and the change in the mass fraction of moisture during the storage of finished products have been studied. It has been found that the use of IScav in the formulation gives the best results. The use of cavitation in the production of invert syrup makes it possible to obtain a product with a 100th sucrose inversion, moisture content 20% and medium dispersion 0.2–0.4 microns. IScav has higher dynamic viscosity, water activity and lower density than IS. An increase in the dispersion of the system leads to better retention of moisture in fondant sweets during their storage (35 days, 5 °C, non-tight), subject to the permissible standard indicators of microbiological safety. Fondant sweets made with IScav are characterized by a fine crystalline texture, which gives them a more delicate consistency that melts in the mouth compared to products made with starch syrup. [ABSTRACT FROM AUTHOR]

Published
2022
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41. Multifilamentary composite MgB2 wires: preparation and testing

Author

Akimov, Igor I., Medvedev, Michael I., Pantsymy, Victor I., Shikov, Alexander K., Vorobieva, Alexandra E., and Gusakov, Dmitriy B.

Subjects
Superconductivity -- Measurement, Electrical wire -- Testing, Electrical wire -- Electric properties, Business, Electronics, Electronics and electrical industries
Abstract

Different constructions of magnesium diboride composites superconductors are described. The results of metallography investigations and transport measurements for the conductors as well as for dummy coil are described.

Published
2004

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