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44 results on '"Vasilev, Andrey"'

7. Contributors

Author

Abdelbary, Ahmed, primary, Afanasyevna, Sleptsova Sardana, additional, Aleksandrovich, Nikiforov Leonid, additional, Alekseevna, Okhlopkova Aitalina, additional, Amico, Sandro C., additional, Arulraj, P., additional, Arun Ramnath, R., additional, Bennet, C., additional, Chandrasekar, Muthukumar, additional, Chungchoo, Chatchapol, additional, Deepa, C., additional, Deiva Ganesh, A., additional, Emami, Nazanin, additional, Friedrich, Klaus, additional, Hemanth, R., additional, Ishak, M.R., additional, Jumahat, A., additional, Karthikeyan, Subramaniam, additional, Lenin Singaravelu, D., additional, Liu, Yucheng, additional, Ma, Yunhai, additional, Maheshkumar, PON., additional, Mayandi, K., additional, Mohamed, Yasser S., additional, Nikolaevna, Lazareva Nadezhda, additional, Niranatlumpong, Panadda, additional, Nunthavarawong, Peerawatt, additional, Parameswaranpillai, Jyotishkumar, additional, Petrovich, Vasilev Andrey, additional, Phuthotham, Matuphum, additional, Rajini, Nagarajan, additional, Ramakrishnan, S., additional, Ramesh, M., additional, Rangappa, Sanjay Mavinkere, additional, Sanjay, M.R., additional, Saravanan, Prabakaran, additional, Sathishkumar, T.P., additional, Selvan, M. Chithirai Pon, additional, Semenovna, Struchkova Tatiana, additional, Senthil Muthu Kumar, Thiagamani, additional, Senthilkumar, Krishasamy, additional, Sharudin, H., additional, Siengchin, Suchart, additional, Siva, I., additional, Sivakumar, D., additional, Suresha, B., additional, Talib, A.A.A., additional, Tong, Jin, additional, Ungtrakul, Thitinun, additional, Venkatanarayanan, P.S., additional, Vijay, R., additional, Winowlin Jappes, J.T., additional, Yashas Gowda, T.G., additional, Yorseng, Krittirash, additional, and Zulfikli, N.W.M., additional

Published
2021
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9. Study on the Impact of a Combination of Synthetic Wollastonite and 2-Mercaptobenzothiazole-Based Fillers on UHMWPE Polymeric Matrix

Author

Danilova, Sakhayana N., primary, Okhlopkova, Aitalina A., additional, Yarusova, Sofia B., additional, Dyakonov, Afanasy A., additional, Gordienko, Pavel S., additional, Papynov, Evgeniy K., additional, Shichalin, Oleg O., additional, Buravlev, Igor Yu., additional, Vasilev, Andrey P., additional, Zhevtun, Ivan G., additional, and Ivanenko, Natalya V., additional

Published
2023
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12. Novel Hybrid Composites Based on Polymers of Diphenyl-Amine-2-Carboxylic Acid and Highly Porous Activated IR-Pyrolyzed Polyacrylonitrile

Author

Ozkan, Sveta Zhiraslanovna, primary, Petrov, Valeriy Alekseevich, additional, Efimov, Mikhail Nikolaevich, additional, Vasilev, Andrey Aleksandrovich, additional, Muratov, Dmitriy Gennad’evich, additional, Sadovnikov, Alexey Aleksandrovich, additional, Bondarenko, Galina Nikolaevna, additional, and Karpacheva, Galina Petrovna, additional

Published
2023
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14. Agent Substitution Mechanism for Dataflow Networks: Case Study and Implementation in Smart-M3

Author

Paramonov, Ilya, Vasilev, Andrey, Laure, Denis, Timofeev, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Balandin, Sergey, editor, Andreev, Sergey, editor, and Koucheryavy, Yevgeni, editor

Published
2013
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15. Two-Layer Rubber-Based Composite Material and UHMWPE with High Wear Resistance

Author

Dyakonov, Afanasy A., primary, Vasilev, Andrey P., additional, Danilova, Sakhayana N., additional, Okhlopkova, Aitalina A., additional, Tarasova, Praskovia N., additional, Lazareva, Nadezhda N., additional, Ushkanov, Alexander A., additional, Tuisov, Aleksei G., additional, Kychkin, Anatoly K., additional, and Vinokurov, Pavel V., additional

Published
2022
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21. Contributors

Author

Ahmed Abdelbary, Sleptsova Sardana Afanasyevna, Nikiforov Leonid Aleksandrovich, Okhlopkova Aitalina Alekseevna, Sandro C. Amico, P. Arulraj, R. Arun Ramnath, C. Bennet, Muthukumar Chandrasekar, Chatchapol Chungchoo, C. Deepa, A. Deiva Ganesh, Nazanin Emami, Klaus Friedrich, R. Hemanth, M.R. Ishak, A. Jumahat, Subramaniam Karthikeyan, D. Lenin Singaravelu, Yucheng Liu, Yunhai Ma, PON. Maheshkumar, K. Mayandi, Yasser S. Mohamed, Lazareva Nadezhda Nikolaevna, Panadda Niranatlumpong, Peerawatt Nunthavarawong, Jyotishkumar Parameswaranpillai, Vasilev Andrey Petrovich, Matuphum Phuthotham, Nagarajan Rajini, S. Ramakrishnan, M. Ramesh, Sanjay Mavinkere Rangappa, M.R. Sanjay, Prabakaran Saravanan, T.P. Sathishkumar, M. Chithirai Pon Selvan, Struchkova Tatiana Semenovna, Thiagamani Senthil Muthu Kumar, Krishasamy Senthilkumar, H. Sharudin, Suchart Siengchin, I. Siva, D. Sivakumar, B. Suresha, A.A.A. Talib, Jin Tong, Thitinun Ungtrakul, P.S. Venkatanarayanan, R. Vijay, J.T. Winowlin Jappes, T.G. Yashas Gowda, Krittirash Yorseng, and N.W.M. Zulfikli

Published
2021

22. Development and tribological properties of polymer composites

Author

Sleptsova Sardana Afanasyevna, Struchkova Tatiana Semenovna, Okhlopkova Aitalina Alekseevna, Nikiforov Leonid Aleksandrovich, Vasilev Andrey Petrovich, and Lazareva Nadezhda Nikolaevna

Subjects
chemistry.chemical_compound, Materials science, Polytetrafluoroethylene, chemistry, Polymer composites, Polymer composite materials, Tribology, Composite material
Abstract

Tribological polymer composite materials are widely used in various industries. In particular, polymer composites with self-lubricating properties are of great interest in replacing metal parts in various friction units of machines and technical equipment. In this review, we systematically analyze the latest information on the development of polymer composite materials with (1) nanosized particles, (2) layered silicates, and (3) fibrous fillers. The main technological methods for producing the polymer composites and their influence on the results of friction and wear of materials are described. The results of a study of polytetrafluoroethylene (PTFE) with layered silicates and combined fillers (layered silicates with carbon fibers) are discussed. We also explain the friction and wear mechanisms of PTFE/layered silicates composites as the adaptation to friction due to the formation of secondary structures on the friction surface protecting from wear.

Published
2021

24. ВЛИЯНИЕ УСЛОВИЙ МЕХАНИЧЕСКОЙ ОБРАБОТКИ НА ДИСПЕРСНОСТЬ ЧАСТИЦ ГРАФИТОВОЙ СМЕСИ

Author

Nguyen, Tien Hiep, Nguyen, Van Minh, Konyukhov, Yury Vladimirovich, Vvedenskaya, Irina Andreevna, and Vasilev, Andrey Aleksandrovich

Subjects
graphite, размол, измельчение, size distribution, milling, графит, распределение по размерам, processing, обработка, grinding
Abstract

В данной работе представлены данные по изучению процессов измельчения графитовой смеси с применением разных технологий обработки в аппаратах вихревого слоя и планетарной мельнице. Исследования проводились с использованием методов лазерного анализа распределения частиц по размерам, сканирующей электронной микроскопии и рентгенофазового анализа. Установлено, что обработка в планетарной мельнице Pulverisette 7 в течение 60 мин приводит к получению полидисперсных частиц графитовой смеси, характеризующихся широким бимодальным распределением по размерам с ярко выраженными пиками максимумов в 12 и 24 мкм соответственно. Показано, что обработка графитовой смеси в аппаратах вихревого слоя АВС-80 и УАП-3 за 10 мин позволяет получить узкодисперсные частицы графита с максимумами распределения 13 и 11 мкм соответственно, что говорит о преимуществе и эффективности данной технологии по сравнению со случаем измельчения графитовой смеси в планетарной мельнице., This paper presents data on the study of grinding processes of a graphite mixture using various processing technologies in vortex layer devices and planetary mills. The studies were carried out using methods of laser analysis of particle size distribution, scanning electron microscopy and X-ray phase analysis. Processing the graphite mixture in a Pulverisette 7 planetary mill for 60 min was found to lead to the formation of polydisperse graphite particles characterized by a wide bimodal size distribution with pronounced maxima at 12 and 24 μm, respectively. We showed that processing the graphite mixture in the devices of vortex layer AVS-80 and UAP-3 in 10 min makes it possible to obtain finely dispersed graphite particles with maxima of the size distribution at 13 and 11 μm respectively, which indicates the advantage and efficiency of this technology as compared to the case of grinding the graphite mixture in the planetary mill.

Published
2020
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26. One-step synthesis, characterization and properties of novel hybrid electromagnetic nanomaterials based on polydiphenylamine and Co–Fe particles in the absence and presence of single-walled carbon nanotubes

Author

Ozkan, Sveta Zhiraslanovna, primary, Karpacheva, Galina Petrovna, additional, Efimov, Mikhail Nikolaevich, additional, Vasilev, Andrey Aleksandrovich, additional, Muratov, Dmitriy Gennad'evich, additional, Petrov, Valeriy Alekseevich, additional, Chernavskii, Petr Aleksandrovich, additional, and Pankina, Galina Viktorovna, additional

Published
2021
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40. Mechanical and Tribological Properties of Polytetrafluoroethylene Composites Modified by Carbon Fibers and Zeolite.

Author

Struchkova, Tatyana S., Vasilev, Andrey P., Okhlopkova, Aitalina A., Danilova, Sakhayana N., and Alekseev, Aleksey G.

Subjects
CARBON fibers, POLYTEF, CARBON composites, LIGHTWEIGHT materials, ZEOLITES, FIBROUS composites, YIELD stress
Abstract

Currently, lightweight and high-strength polymer composites can provide weight savings in the automotive and process equipment industries by replacing metal parts. Polytetrafluoroethylene and polymer composites based on it are used in various tribological applications due to their excellent antifriction properties and thermal stability. This article examines the effect of combined fillers (carbon fibers and zeolite) on the mechanical, tribological properties, and structure of polytetrafluoroethylene. It is shown that the introduction of combined fillers into polytetrafluoroethylene retains the tensile strength and elongation at break at a content of 1–5 wt.% of carbon fibers, the compressive stress increased by 53%, and the yield stress increased by 45% relative to the initial polymer. The wear resistance of polymer composites increased 810-fold compared to the initial polytetrafluoroethylene while maintaining a low coefficient of friction. The structural features of polymer composites are characterized by X-ray diffraction analysis, infrared spectroscopy, and scanning electron microscopy. [ABSTRACT FROM AUTHOR]

Published
2022
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41. Recognition by Spectrum of L16(2m).

Author

Grechkoseeva, Maria A., Shi, Wujie, and Vasilev, Andrey V.

Subjects
LINEAR algebra, ALGEBRAIC geometry, MATHEMATICAL analysis, LINE geometry, MATHEMATICS education
Abstract

In this paper we prove that the simple linear groups L16(2m)(m ≥ 1) over fields of characteristic 2 are recognizable by the sets of their element orders. [ABSTRACT FROM AUTHOR]

Published
2007
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42. Luminescence investigation of zinc molybdate single crystals

Author

Spassky, Dmitry, Vasilev, Andrey, Kamenskikh, Irina, Kolobanov, Vitaly, Mikhailin, Vitaly, Savon, Alexander, Ivleva, Ludmila, Voronina, Irina, and Berezovskaya, Ludmila

Abstract

Zinc molybdate is considered as an alternative to the sheelitetype molybdate crystals for cryogenic scintillating bolometers. We report the results of the first investigation of the luminescent properties of bulk ZnMoO4single crystals grown by Czochralski method. The temperature dependence of the luminescence intensity under different excitation energies was studied, optical characteristics of zinc molybdate are presented. The potential of ZnMoO4single crystal as a scintillating material at low temperature is demonstrated. © 2009 WILEYVCH Verlag GmbH & Co. KGaA, Weinheim

Published
2009
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43. Recognition by Spectrum of L16(2m).

Author

Grechkoseeva, Maria A., Shi, Wujie, and Vasilev, Andrey V.

Subjects
*LINEAR algebra, *ALGEBRAIC geometry, *MATHEMATICAL analysis, *LINE geometry, *MATHEMATICS education
Abstract

In this paper we prove that the simple linear groups L16(2m)(m ≥ 1) over fields of characteristic 2 are recognizable by the sets of their element orders. [ABSTRACT FROM AUTHOR]

Published
2007
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44. Hybrid Nanocomposites Based on Poly(3,6-dianiline-2,5-dichloro-1,4-benzoquinone): Synthesis, Structure and Properties.

Author

Kiseleva SG, Bondarenko GN, Orlov AV, Muratov DG, Kozlov VV, Vasilev AA, and Karpacheva GP

Abstract

Hybrid nanocomposites based on poly(3,6-dianiline-2,5-dichloro-1,4-benzoquinone) (PDACB) in salt form and graphene oxide (GO) have been obtained for the first time, and the significant influence of the preparation method on the composition and structure of nanocomposites and their functional properties has been demonstrated. Nanocomposites were prepared in three ways: via ultrasonic mixing of PDACB and GO; via in situ oxidative polymerization of 3,6-dianiline-2,5-dichloro-1,4-benzoquinone (DACB) in the presence of GO; and by heating a suspension of previously prepared PDACB and GO in DMF with the removal of the solvent. The results of the study of the composition, chemical structure, morphology, thermal stability and electrical properties of nanocomposites obtained via various methods are presented. Nanocomposites obtained by mixing the components in an ultrasonic field demonstrated strong intermolecular interactions between PDACB and GO both due to the formation of hydrogen bonds and π-stacking, as well as through electrostatic interactions. Under oxidative polymerization of DACB in the presence of GO, the latter participated in the oxidative process, being partially reduced. At the same time, a PDACB polymer film was formed on the surface of the GO. Prolonged heating for 4 h at 85 °C of a suspension of PDACB and GO in DMF led to the dedoping of PDACB with the transition of the polymer to the base non-conductive form and the reduction of GO. Regardless of the preparation method, all nanocomposites showed an increase in thermal stability compared to PDACB. All nanocomposites were characterized by a hopping mechanism of conductivity. Direct current (dc) conductivity σ dc values varied within two orders of magnitude depending on the preparation conditions.

Published
2024
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