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Your search keyword '"Gubarev, Fedor A."' showing total 97 results
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97 results on '"Gubarev, Fedor A."'

3. Molecular Plasmonic Silver Forests for the Photocatalytic-Driven Sensing Platforms

Author

Fatkullin, Maxim, primary, Rodriguez, Raul D., additional, Petrov, Ilia, additional, Villa, Nelson E., additional, Lipovka, Anna, additional, Gridina, Maria, additional, Murastov, Gennadiy, additional, Chernova, Anna, additional, Plotnikov, Evgenii, additional, Averkiev, Andrey, additional, Cheshev, Dmitry, additional, Semyonov, Oleg, additional, Gubarev, Fedor, additional, Brazovskiy, Konstantin, additional, Sheng, Wenbo, additional, Amin, Ihsan, additional, Liu, Jianxi, additional, Jia, Xin, additional, and Sheremet, Evgeniya, additional

Published
2023
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8. Molecular Plasmonic Three-Dimensional Forests: Chemical Sensors Compatible with Flexible Electronics and Photocatalysis

Author

Rodriguez, Raul D. D., primary, Fatkullin, Maxim, additional, Petrov, Ilia, additional, Villa, Nelson E., additional, Gridina, Maria, additional, Murastov, Gennadiy, additional, Chernova, Anna, additional, Plotnikov, Evgenii, additional, Lipovka, Anna, additional, Averkiev, Andrey, additional, Semenov, Oleg, additional, Brazovskiy, Konstantin, additional, Gubarev, Fedor, additional, Sheng, Wenbo, additional, Amin, Ihsan, additional, Liu, Jianxi, additional, Jia, Xin, additional, and Sheremet, Evgeniya, additional

Published
2022
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13. Speckle pattern processing by digital image correlation

Author

Gubarev Fedor, Li Lin, Klenovskii Miron, and Glotov Anatoliy

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

Testing the method of speckle pattern processing based on the digital image correlation is carried out in the current work. Three the most widely used formulas of the correlation coefficient are tested. To determine the accuracy of the speckle pattern processing, test speckle patterns with known displacement are used. The optimal size of a speckle pattern template used for determination of correlation and corresponding the speckle pattern displacement is also considered in the work.

Published
2016
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14. The Influence of the Radiation Source Parameters on the Accuracy of Digital Speckle Correlation Method

Author

Li Lin and Gubarev Fedor

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

The article presents the impact of the laser radiation divergence and the wavelength on the harmonic distortion detection, as well as the influence of the distance between the optical circuit elements on the harmonic distortion and the sensitivity of amplitude. The research was made by recording the speckle images from the vibrating surface of the object with its digital processing later.

Published
2016
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15. Automated Coconut Chopping Machine

Author

Jayasankar AhilaRajan, Gubarev Fedor, Theekay Veetil Sadasivan, Samar Samyak, and Kumar Ankit

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

The paper explains the purpose, working principle, advantages and applications of the new machine named “Automated Coconut Chopper”. The main purpose to design this machine is to automate an activity of a farmer/labor i.e. chopping of green coconut in order to consume water inside it and also designed considering the two main factors safety and cost.

Published
2016
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16. Photoinduced Flexible Graphene/Polymer Nanocomposites: Design, Formation Mechanism, and Properties Engineering

Author

Lipovka, Anna, primary, Petrov, Ilia, additional, Fatkullin, Maxim, additional, Murastov, Gennadiy, additional, Ivanov, Alexey, additional, Villa, Nelson E., additional, Schadenko, Sergey, additional, Averkiev, Andrey, additional, Chernova, Anna, additional, Gubarev, Fedor, additional, Saqib, Muhammad, additional, Sheng, Wenbo, additional, Chen, Jin-Ju, additional, Kanoun, Olfa, additional, Amin, Ihsan, additional, Rodriguez, Raul D. D., additional, and Sheremet, Evgeniya, additional

Published
2021
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22. Whole blood clotting time assessment by method of laser-speckle correlation

Author

Sytnik, Iuliia, Li Lin, Gubarev, Fedor Aleksandrovich, Nosarev, Aleksey Valerievich, and Rydchenko, Viktoria

Subjects
optical coagulometer, оптические коагулометры, blood, кровь, спеклы, время, speckle, clotting time, свертывание
Abstract

The paper presents the results of study of the coagulation process of the whole blood with anticoagulant using the method of laser speckle correlation. The clotting time dependence curves of the correlation coefficient have been presented and discussed. Analyzing the changing trend of these curves is possible to assess the clotting time, which prove the capability of using the method of laser speckle correlation for determining the diseases of blood coagulation.

Published
2019

23. Registration and Processing System of Digital Speckle Images

Author

Korotina, Ekaterina, Gandzha, Taras, Sytnik, Julia, and Gubarev, Fedor Aleksandrovich

Subjects
корреляция, цифровые изображения, correlation, кровь, laser speckle, спеклы, обработка изображений, системы регистрации, blood coagulation, image processing, свертывание, спекл-изображения
Abstract

In this paper, we discuss an application of the method of laser-speckle correlation for studying the process of fibrin formation in blood plasma. A module for recording and processing speckle images based on a debugging kit for the Atxmega128A1 microcontroller has been developed. The results of testing the developed module as part of a laboratory setup based on a diode laser using standard reagents are presented. The developed device allows obtaining a curve characterizing the process of fibrin formation in blood plasma, with the use of which it is possible to determine the clotting time.

Published
2019

24. New technology for assessing platelet aggregation activity

Author

Tyutrin, Ivan, Li Lin, Gubarev, Fedor Aleksandrovich, Zhukov, Egor, Slizevich, Dmitriy, and Sytnik, Julia

Subjects
laser speckle imaging, tromboelastography, тромбоциты, кровь, тромбоэластография, визуализация, aggregation, спеклы, агрегация, blood coagulation, свертывание
Abstract

In this paper, we discuss an application of the method of the Digital Laser Speckle Image Correlation method for studying the aggregation function of platelets in whole blood with the maximum standardization of the pre-analytical and analytical stages of the study. The method with native blood allowed to identify the difference between platelet aggregation activity of volunteers of Siberian population. Materials and images are provided, methods are explained. Correlation analysis of the obtained results showed a high correlation of the proposed technique with the method of Low-Frequency Piezoelectric Tromboelastography.

Published
2019

42. Laser Systems for Distant Monitoring of Nanopowder Combustion.

Author

Lin Li, Antipov, Petr A., Mostovshchikov, Andrei V., Ilyin, Alexander P., and Gubarev, Fedor A.

Subjects
COMBUSTION, CUPROUS bromide, LASERS, SURFACE morphology, IMAGE processing, SOLID-state lasers
Abstract

The paper discusses the application of laser illumination and brightness amplification techniques for studying the process of high-temperature combustion of aluminum and iron nanopowders and their mixtures. The laser equipment for visualization based on solid-state laser illuminator, brightness amplifier on copper bromide vapors and high-speed camera is considered. These approaches allow the increase of monitoring distance to 50 cm, which is important for high-temperature processes imaging. The video images allow studying the surface morphology changes during high-temperature combustion identifying the main stages of combustion, spreading of the heat waves and cooling. [ABSTRACT FROM AUTHOR]

Published
2019
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44. Monitoring of Aluminum Nanopowder Combustion Ignited by Laser Radiation.

Author

Lin Li, Mostovshchikov, Andrei V., Il'in, Alexander P., and Gubarev, Fedor A.

Subjects
LASER beams, COMBUSTION measurement, ALUMINUM
Abstract

The paper presents the results of observing, in a real time, the process of combustion in air of aluminum nanopowder ignited by laser radiation. The obtained results convincingly evidence the possibility and perspective of visualization of ignition process by means of laser monitor. The video images allow observing the main stages of the combustion process including starting of combustion in the place of laser radiation focusing, spreading of the heat wave and appearance of the second combustion wave. For quantitative analysis of the combustion process, we suggest to analyze the average intensity of images registered by laser monitor. [ABSTRACT FROM AUTHOR]

Published
2018
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