Zobrazeno 1 - 10 of 20 pro vyhledávání: '"Oleg Kovalev"'
1
G.D. Grebenstchikoff's Late Autofiction: Narrative Strategies in the Story 'Egorkina zhizn'
Autor: Oleg Kovalev
Publikováno v: Philology & Human. :142-150
As far as the genre of the last major work of G.D. Grebenstchikoff "Egorkina zhizn" is concerned, being an autobiographical material, it is a compromise of different trends – the aspiration to capture the world of the past as tangibly as possible,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64d9d3190b049bde87c315a2c99b3549
https://doi.org/10.14258/filichel(2022)3-11
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5
Supersonic DC plasma torch for deposition of high-density wear-resistant coatings
Autor: Victor Kuz'min, Oleg Kovalev, Sergey Vashchenko, Andrey Tuezov, Elena Kornienko, Igor Gulyaev, Dmitriy Sergachev, Boris Palagushkin
Publikováno v: Materials Today: Proceedings. 19:2152-2156
The results of the development of the supersonic plasma torch for deposition of high-density functional coatings are presented. It was established that the use of a supersonic flow permits to raise the average velocity of the sprayed particles from 3
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e071f86f579ceb45df20820b628884af
https://doi.org/10.1016/j.matpr.2019.07.230
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6
Sequences of Sub-Microsecond Laser Pulses for Material Processing: Modeling of Coupled Gas Dynamics and Heat Transfer
Autor: Oleg Kovalev, Andrey V. Gusarov
Publikováno v: Applied Sciences
Volume 9
Issue 22
Applied Sciences, Vol 9, Iss 22, p 4785 (2019)
Multipulse laser processing of materials is promising because of the additional possibilities to control the thickness of the treated and the heat-affected zones and the energy efficiency. To study the physics of mutual interaction of pulses at high
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce842a5096c484db1985da768fb31803
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8
Morphology of random packing of micro-particles and its effect on the absorption of laser radiation during selective melting of powders
Autor: Oleg Kovalev, Andrey V. Gusarov, V.V. Belyaev
Publikováno v: International Journal of Engineering Science. 157:103378
The results of analytical and numerical studies of the internal structure of random packed beds of metal micro-particles are presented. To construct packed beds from mono- and polydisperse solid spheres, an algorithm for their random generation based
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e965f7f45cd4ee5c437e42fde2ce666
https://doi.org/10.1016/j.ijengsci.2020.103378
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9
Comparative analysis of performance characteristics of nozzle heads for powder transportation in a laser cladding and direct material deposition
Autor: Oleg Kovalev
Publikováno v: MATEC Web of Conferences, Vol 224, p 01041 (2018)
The analysis of the dynamics of gas-dispersed flows created by nozzle heads, which are used in the additive technology of direct laser deposition of material in the manufacture of metal products of complex geometry, is analyzed. The features of using
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f59ba105e36154b8eb67b888529da6da
https://doaj.org/article/266811829f8b484d88fd35550ebecf08
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10
Numerical study of the random packings structure of solid metal powder particles
Autor: Oleg Kovalev, Andrey V. Gusarov, Vitaly Belyaev
Publikováno v: AIP Conference Proceedings.
The peculiarities of the generation of random packings of spherical powder particles are studied. The results of theoretical and numerical studies of the structure of such packings from mono- and polydisperse solid spheres are presented. The results
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2f7b6503c7fde5c1f24e8c6937e8d89
https://doi.org/10.1063/1.5007513
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