Zobrazeno 1 - 10
of 32
pro vyhledávání: '"N. I. Petrov"'
Publikováno v:
Новые технологии, Vol 19, Iss 1, Pp 91-102 (2023)
Sugar sorghum is mainly used for green fodder, haylage and silage. The accumulation of sugars occurs throughout the growing season. The relevance of the study is to identify a high-yielding variety or hybrid of sugar sorghum containing a large amount
Externí odkaz:
https://doaj.org/article/fe31f2f45a544d67943fddd899b6faf9
Autor:
N. I. Petrov
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract X-ray and γ-ray emissions observed in lightning and long sparks are usually connected with the bremsstrahlung of high-energy runaway electrons. Here, an alternative physical mechanism for producing X-ray and gamma-ray emissions caused by th
Externí odkaz:
https://doaj.org/article/8caf727078d44ddda46f0062877754ff
Autor:
N. I. Petrov, Yu. L. Lavrentyev
Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 17, Iss 2, Pp 154-163 (2018)
The article reviews domestic and foreign methods of estimating heat generation in angular contact ball bearings. Models for general-purpose bearings and for aviation angular contact ball bearings are considered. Models adopted at bearing manufacturer
Externí odkaz:
https://doaj.org/article/9498d507598744c1baa351979e9924a9
Autor:
N. I. Petrov
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-15 (2019)
Scientific Reports
Scientific Reports
A plane monochromatic wave propagates in vacuum at the velocity c. However, wave packets limited in space and time are used to transmit energy and information. Here it has been shown based on the wave approach that the on-axis part of the pulsed beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::085af67390ef14e8e11d89344f53669f
http://link.springer.com/article/10.1038/s41598-019-54921-5
http://link.springer.com/article/10.1038/s41598-019-54921-5
Publikováno v:
Aviation Engines. :73-76
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a16721c79563da7a0e919a5cc8b5886f
https://doi.org/10.54349/26586061_2019_2_63
https://doi.org/10.54349/26586061_2019_2_63
Publikováno v:
Engineering Sciences.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8688435bf59597d7edfa98cf8f8407a
https://doi.org/10.7546/engsci.lvii.20.02.03
https://doi.org/10.7546/engsci.lvii.20.02.03
Autor:
N I Petrov
Publikováno v:
Journal of Physics: Conference Series. 2015:012109
The influence of plasmonic nanoparticles embedded in the central and side layers of the frustrated total internal reflection filter on the resonant transmission of light is analyzed. It is shown that the frequency dispersion causes the splitting of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4ab8b992d7f89d37e986c76e587ce51
https://doi.org/10.1088/1742-6596/2015/1/012109
https://doi.org/10.1088/1742-6596/2015/1/012109
Autor:
N I Petrov
Publikováno v:
Journal of Physics: Conference Series. 1902:012021
The paper considers the solution of linearized equations of the theory of small elastic-plastic deformations in the case of an axisymmetric problem. It is assumed that in the initial state there is a simple stretching. In the first approximation, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::800de3f41c723c7f1955ab7c2b9a06a7
https://doi.org/10.1088/1742-6596/1902/1/012021
https://doi.org/10.1088/1742-6596/1902/1/012021
Publikováno v:
Journal of Physics: Conference Series. 1777:012046
Modern gas turbine bearings operate at high rotational speeds. Their speed index reaches dmn=3…3, 5-106 mmrpm, where dm = bearing mean diameter, and n = rotational speed. At high speeds, significant heat is generated in conventional steel bearings,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a675b55bcd32d133bbbe76e7b9201ac9
https://doi.org/10.1088/1742-6596/1777/1/012046
https://doi.org/10.1088/1742-6596/1777/1/012046
Publikováno v:
International Journal of Engineering Research and Technology. 13:3757
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bce18ac85faaa69f5720169d8f290d9d
https://doi.org/10.37624/ijert/13.11.2020.3757-3760
https://doi.org/10.37624/ijert/13.11.2020.3757-3760