Výsledky vyhledávání - "A. A. Valkovich"

Akademický článek

Research of the Composition Influence of Composites Containing Impact Diamonds on their Performance Characteristics in Blade Processing of Non-Ferrous Metals

Autor: Vladimir T. Senyut, Petr A. Vityaz, Viktor I. Zhornik, Igor V. Valkovich, Valentin P. Afanasyev, Igor E. Grigoriev

Publikováno v: Механика машин, механизмов и материалов, Iss 2(67), Pp 69-78 (2024)

The paper presents the results of resistance tests of tool composite materials containing nanostructured impact diamonds, in comparison with composites based on synthetic superhard materials, diamond and cubic boron nitride (cBN), and ВК-8 (VK-8) (

Externí odkaz: https://doaj.org/article/feae29716c9f46a7b53e68b184b53f1c

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Akademický článek

Study of the Composition Influence of Composites Based on Sintered Impact Diamond on their Wear Resistance during Processing of Silicon Carbide

Autor: Vladimir T. Senyut, Petr A. Vityaz, Viktor I. Zhornik, Igor V. Valkovich, Valentin P. Afanasyev

Publikováno v: Механика машин, механизмов и материалов, Iss 4(57), Pp 63-70 (2021)

The article presents the results of comparative tests on the wear resistance of composite materials (CM) sintered at high pressures and temperatures based on impact diamond (diamond-lonsdaleite abrasive — DLA) when processing silicon carbide (SiC).

Externí odkaz: https://doaj.org/article/b42f153ad1264cca858641c068ea0ca0

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Akademický článek

Synthesis of the Nanocomposite Based on Impact Diamonds and Silicon Carbide under Conditions of High Pressure and Temperature

Autor: Petr A. Vityaz, Vladimir T. Senyut, Viktor I. Zhornik, Igor V. Valkovich, Svetlana A. Kovaliova, Evgeniy I. Mosunov, Valentin P. Afanasyev

Publikováno v: Механика машин, механизмов и материалов, Iss 4(53), Pp 43-51 (2020)

The article studies the structure, phase composition and physicomechanical characteristics of the nanocomposite based on impact diamonds. It is shown that the additions of a binder based on SiC and Si lead to reduction of the defectiveness of the nan

Externí odkaz: https://doaj.org/article/bd6c5fd429b84aafa1c7f0eaa62d2068

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Akademický článek

Formation of Structure of Highly Filled UHMWPE Composites under Conditions of Intensive Mechanical Activation for Radiation Protective Materials

Autor: Viktor I. Zhornik, Svetlana A. Kovaliova, Tatyana F. Grigoryeva, Tatyana Yu. Kiseleva, Marat A. Belotserkovsky, Igor I. Taran, Igor V. Valkovich, Petr A. Vityaz, Nikolay Z. Lyakhov

Publikováno v: Механика машин, механизмов и материалов, Iss 4(49), Pp 70-78 (2019)

The structural changes of the ultrahigh molecular weight polyethylene (UHMWPE) filled by 70 wt.% of the ultradisperse mechanocomposites Fe/M (M = HfC (12 об.%), TiC (26 об.%), TiB2 (27 об.%), B4C (51 об.%)) and activated by the treatment in t

Externí odkaz: https://doaj.org/article/f54eca24947e4c80b6d209ef018c3d00

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Akademický článek

Mathematical Justification for Optimizing Operating Conditions of Gas and Gas Condensate Producing Wells

Autor: Alexander Cheremisin, Eduard Usov, Boris Kolchanov, Andrey Krylov, Alexander Valkovich, Pavel Lykhin, Vladimir Ulyanov, Ekaterina Khogoeva, Alexander Podnebesnykh

Publikováno v: Energies, Vol 15, Iss 10, p 3676 (2022)

The paper investigated the problem of selecting/finding the optimal process conditions for gas condensate wells. The well process conditions imply a set of parameters that characterize its operation. The optimization of process conditions provides fo

Externí odkaz: https://doaj.org/article/f5f9429011e240b9bc8e85a7d9b4ef66

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Structural Changes in the Elements of the Blood-Brain Barrier of the Hippocampus in Rats after Exposure to Perinatal Hypoxia and the Potential for Their Pharmacological Correction

Autor: L. I. Khozhai, V. I. Mironova, Ivan N. Tyurenkov, T. T. Shishko, Vladimir A. Otellin, E. I. Valkovich

Publikováno v: Neuroscience and Behavioral Physiology. 49:779-783

Objectives. To study the dynamics of structural changes in elements of the blood-brain barrier of the hippocampus during the early postnatal period and subsequent ontogeny after exposure to perinatal hypoxia and to investigate the potential for pharm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1fc2c15e3703e89a0a2f87eb0877fba
https://doi.org/10.1007/s11055-019-00801-4

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Formation of functional literacy in the sphere of healthy lifestyle of students with peculiarities of psychophysical development

Autor: Olga Fedorovna Valkovich

Publikováno v: СПЕЦИАЛЬНОЕ ОБРАЗОВАНИЕ: МЕТОДОЛОГИЯ, ПРАКТИКА, ИССЛЕДОВАНИЯ. Сборник научных статей международной научно-практической конференции.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4aa5da549e11f6c398d9f9c594a8ab91
https://doi.org/10.20323/978-5-00089-251-4-2021-213-220

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Synthesis of polycrystalline cubic boron nitride from hexagonal boron nitride after mechanical activation and modification with aluminum

Autor: S. A. Kovalyova, E. I. Mosunov, V. T. Senyut, I. V. Valkovich, T. V. Gamzeleva, P. A. Vityaz

Publikováno v: Inorganic Materials: Applied Research. 7:53-57

The effect of the thermochemical modification of hexagonal BN micropowders with aluminum on the synthesis of cubic-BN-based polycrystals after attritor processing is studied. It is found that the preliminary hBNattr modification with aluminum reduces

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d18bd75b31bc89d94beae3014a1e0a32
https://doi.org/10.1134/s2075113316010238

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