Zobrazeno 1 - 10
of 37
pro vyhledávání: '"P. D. Kovalev"'
Autor:
Alexandra S. Tyan, Grigoriy G. Karmazanovskij, Natalia A. Karelskaya, Evgeniy V. Kondratyev, Alexander D. Kovalev
Publikováno v:
Digital Diagnostics, Vol 5, Iss 1S, Pp 121-123 (2024)
BACKGROUND: Prostate cancer is currently the second most commonly diagnosed cancer in men. The second edition of the Prostate Imaging Magnetic Resonance Imaging Data Assessment and Reporting System (PI-RADS) was released in 2019 to standardize the di
Externí odkaz:
https://doaj.org/article/aef73483d32a40b9a8908b6378705598
Autor:
Dmitry P. Kovalev, Peter D. Kovalev, Alexander S. Borisov, Vitalii S. Zarochintsev, Konstantin V. Kirillov
Publikováno v:
Геосистемы переходных зон, Vol 6, Iss 2, Pp 114-123 (2022)
The results of studying potential sources of seiche excitation energy in the water area near Poronaisk (Sakhalin Island) using natural measurement data in 2008–2009 are presented. Time series data with a duration of about three months were collecte
Externí odkaz:
https://doaj.org/article/faea5498e76a4ca8b29d6537a31265b5
Autor:
N. D. Kovalev, D. A. Stepanenko
Publikováno v:
Стратегии бизнеса, Vol 10, Iss 4, Pp 90-93 (2022)
Тhe work carried out a study of the possibilities and areas of implementation of artificial intelligence. The directions of development in business with the use of artificial intelligence technologies are determined. The absence of dependence betwee
Externí odkaz:
https://doaj.org/article/595228b0899b48558dcbffaa5b2ba5cf
Publikováno v:
Геосистемы переходных зон, Vol 5, Iss 4, Pp 328-338 (2021)
This paper describes the results of studying the waves in the southern part of the Sea of Okhotsk on the sea routes between Sakhalin and Iturup islands by means of autonomous wave recorders. The study was performed in order to improve the safety of t
Externí odkaz:
https://doaj.org/article/5f9db406d51947bd81d3cf3f13f62916
Publikováno v:
Успехи физики металлов, Vol 22, Iss 1, Pp 78-102 (2021)
Increasing both the service life and the wear resistance of the tool by surface hardening is an urgent issue. Its solution contributes to a significant increase in the performance of products. Available methods of surface hardening of tools, based on
Externí odkaz:
https://doaj.org/article/b6f231aca51d40fdb33e44b224ad21ce
Publikováno v:
Journal of Oceanological Research. 50:5-29
The analysis of the causes of sea level rise and fall under the ice was carried out using sea level time series obtained by measurements performed in the coastal zone of the southeastern coast of Sakhalin island in 2019–2021. The analysis of all th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e1c3033fc91c6d5522809fc8fbadd1a
https://doi.org/10.29006/1564-2291.jor-2022.50(4).1
https://doi.org/10.29006/1564-2291.jor-2022.50(4).1
Autor:
N. A. Kocgetov, I. D. Kovalev
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 18, Iss 2, Pp 149-152 (2016)
XRD investigation of Ti-2B system was carried out with the purpose of determining of structural changes in this system during mechanical activation. The size of coherentscattering region (CSR size) and kind II stresses (microstresses) were calculated
Externí odkaz:
https://doaj.org/article/29bb6715740d45ebbef3a598ef12cd2a
Autor:
Stepan Vorotilo, Philipp V. Kiryukhantsev-Korneev, Boris S. Seplyarskii, Roman A. Kochetkov, Nail I. Abzalov, Ivan D. Kovalev, Tatyana G. Lisina, Alexander A. Zaitsev
Publikováno v:
Crystals, Vol 10, Iss 5, p 412 (2020)
The effects of granulation of reactive mixtures Ti-Cr-C and Ti-Cr-C-Ni on the combustion temperature and velocity, as well as phase composition and mechanical properties (crushing ability) of combustion products, were studied. Granulation was associa
Externí odkaz:
https://doaj.org/article/102d27c5e46146dfb97bf8e252ed18f7
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 15, Iss 2, Pp 107-110 (2013)
Boron carbide with compositions corresponding to the homogeneity region in its phase diagram was obtained by self-propagating high temperature synthesis (SHS). The received samples were characterized by X-ray diffraction (XRD) analysis, lattice param
Externí odkaz:
https://doaj.org/article/ce5c770baaf44047bb07579336889fac
Autor:
S. M. Busurin, P. A. Tsygankov, M. L. Busurina, Yu. D. Kovalev, O. D. Boyarchenko, N. V. Sachkova, A. E. Sytschev
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 15, Iss 2, Pp 101-105 (2013)
Ferrites with composition of NiMnxFe1-xO4, (with x = 0 ÷ 1.0) have been synthesized by self-propagating high-temperature synthesis (SHS). The particle size of the synthesized ferrite powder was about 10 nm. Additional heat treatment at 1270 K during
Externí odkaz:
https://doaj.org/article/9f7a17f0975e435eb5088a2fb8b45dd9