Zobrazeno 1 - 10
of 166
pro vyhledávání: '"V N, Danilov"'
Autor:
P. S. Kabytov, V. A. Konev, S. V. Solovyeva, V. V. Kondrashin, V. N. Danilov, S. V. Lyubichankovsky
Publikováno v:
Вестник Самарского университета: История, педагогика, филология, Vol 29, Iss 1, Pp 21-30 (2023)
The article presents a discussion about the article by Doctor of Economics, professor Andrei Evgenievich Busygin on the problem of the evolution of higher education in Russia since Soviet times, organized by the editorial board of the journal. In con
Externí odkaz:
https://doaj.org/article/fc33184758a242cbaa2f1fddf19dc4f3
Publikováno v:
Zoodiversity, Vol 54, Iss 6 (2020)
The research was designed to study the dynamics of mouse-like rodent communities in the area of self-organized vegetation, which had undergone clear-cut deforestation. The research is based on the results of continuous monitoring conducted from 1978
Externí odkaz:
https://doaj.org/article/c3c2315bcad743368e36b3d8acaa6191
Autor:
V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :14-22
On the basis of computer modeling of the electro acoustic channel of a normal probe for a reflector in the form of a bottom surface, the influence of some typical forms and corresponding frequency spectra of the electric pulse of excitation of the pi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83a30d43042413631b5edbf7da06fdc2
https://doi.org/10.14489/td.2022.09.pp.014-022
https://doi.org/10.14489/td.2022.09.pp.014-022
Autor:
V. M. Ushakov, V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :4-13
The results of ultrasonic testing of metal before and after the operation of pipelines of thermal power plants are presented. Based on the metallographic analysis data, the frequency of ultrasonic waves was selected for research 10 and 15 MHz. It was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48879f4ab72e40b09736540a086bdfda
https://doi.org/10.14489/td.2022.07.pp.004-013
https://doi.org/10.14489/td.2022.07.pp.004-013
Autor:
V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :4-17
The computer simulation of acoustic сhannels of a tandem techniques on transverse waves (usual) and with transformation of radiated transverse waves in longitudinal on a upright oriented surface of the reflector such as a round flat bottom hole is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::759d7d9d97b1046895ef020deafd4373
https://doi.org/10.14489/td.2022.06.pp.004-017
https://doi.org/10.14489/td.2022.06.pp.004-017
Autor:
V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :4-11
Based on computer modeling of the electro acoustic channel of a normal probe for a reflector in the form of a bottom surface, the influence of elements of the electrical circuits of the probe on the characteristics of the frequency spectrum and pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58c13396f47eaa071ce1616a3b1d9e8e
https://doi.org/10.14489/td.2022.05.pp.004-011
https://doi.org/10.14489/td.2022.05.pp.004-011
Autor:
V. N. Danilov, L. V. Voronkova
Publikováno v:
Kontrol'. Diagnostika. :4-16
Based on analytical models, the dependence of the velocity and attenuation coefficient of the longitudinal ultrasonic wave in cast iron with globular graphite on the average size of graphite elements and its volume content is shown. Computer modeling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d40d616a06dd1bd5b3bc0dcd4b2a43
https://doi.org/10.14489/td.2022.03.pp.004-016
https://doi.org/10.14489/td.2022.03.pp.004-016
Autor:
V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :4-13
Formulas of acoustic channels of an angle dual probes of longitudinal waves for several models of reflectors – a spherical hole, a notch, an infinite strip, a round flat bottom hole etc. in a far field are given, allowing to carry out calculations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f3c707d5f92c4a1b268b79e14ab89d8
https://doi.org/10.14489/td.2022.02.pp.004-013
https://doi.org/10.14489/td.2022.02.pp.004-013
Autor:
V. N. Danilov
Publikováno v:
Kontrol'. Diagnostika. :4-15
With use of the analytical description of coefficient of reflection of a bottom signal from area of contact of a sample and the normal probe growing with increase of frequency of fluctuations transmitted and a registered longitudinal wave and thickne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb6cb28dc11ce44d6bd075aa46f8563
https://doi.org/10.14489/td.2022.01.pp.004-015
https://doi.org/10.14489/td.2022.01.pp.004-015
Autor:
V. N. Danilov, L. V. Voronkova
Publikováno v:
Kontrol'. Diagnostika. :4-15
Algorithms have been presented for calculating the velocity (in the approximation of a fine-layered model) and the attenuation coefficient of a longitudinal ultrasonic wave in cast iron, depending on the average size of graphite elements and its volu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3df6a3db1870e084147e41e2e341a689
https://doi.org/10.14489/td.2021.09.pp.004-015
https://doi.org/10.14489/td.2021.09.pp.004-015