Zobrazeno 1 - 10
of 29
pro vyhledávání: '"V. D. Naumenko"'
Autor:
V. А. Markov, V. D. Naumenko
Publikováno v:
Радиофизика и электроника, Vol 23, Iss 1, Pp 53-60 (2018)
One of the main problems faced by developers of modulators for spatial-harmonic magnetrons with cold secondary emission cathode is the selection of the correct shape of an anode voltage pulse that will ensure the stable operation of the magnetron. In
Externí odkaz:
https://doaj.org/article/5f4eaedf4932480da7e306fd0c51a50c
Publikováno v:
Biotechnologia Acta, Vol 6, Iss 5, Pp 62-78 (2013)
Biological properties, chemical structures and biosynthesis pathways of plant isoflavones, especially soybean isoflavones (daidzein, genistein and glycitein) are reviewed. The structures of isoflavones, and their aglicone and glucosides (glycosides)
Externí odkaz:
https://doaj.org/article/059e69115af941a38b35f41dce199eb9
Autor:
V. A. Markov, Klaus Schunemann, Dmytro M. Vavriv, N. I. Avtomonov, V. D. Naumenko, A. N. Suvorov
Publikováno v:
IEEE Transactions on Electron Devices. 59:3608-3611
The development of a 210-GHz spatial-harmonic magnetron with a cold secondary-emission cathode is presented. The development includes a detailed self-consistent tube simulation and optimization. Based on these results, 210-GHz tubes providing over 1-
Publikováno v:
2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW).
Spatial-harmonic magnetrons with cold secondary-emission cathode are efficient high-power millimeter-wavelength oscillators. Recent advances in the development of such low-voltage magnetrons, 210 GHz tubes, and magnetrons with an extended lifetime ar
Autor:
V. D Naumenko, V. A Markov
Publikováno v:
2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW).
Experimentally is investigational influence of operating mode and steepness of pulse wavefront of anodic voltage on the magnitude of auxiliary thermionic cathode current of necessary for the start of magnetron with a secondary-emission cathode. It is
Autor:
Seok-Gy Jeon, V. D. Naumenko, Jaehong Kim, O. P. Kulagin, A. S. Tishchenko, Victor D. Yeryomka, Jung-Il Kim, Geun-Ju Kim
Publikováno v:
IEEE Transactions on Plasma Science. 40:1966-1971
We investigate, using the 3-D particle-in-cell simulation code MAGIC, the millimeter-wavelength 20-vane magnetron operating at one of the spatial nonfundamental harmonics of the backward-traveling wave. This spatial harmonic is characterized by 16 (p
Publikováno v:
Cytology and Genetics. 45:324-332
The problem of unintended effects, which may be caused by genetic modification of plants, is analyzed. The factors that provoke the occurrence of unintended effects in genetically engineered plants, the consequences caused by the influence of these f
Publikováno v:
Telecommunications and Radio Engineering. 68:507-516
Publikováno v:
Telecommunications and Radio Engineering. 59:73-79
Publikováno v:
Telecommunications and Radio Engineering. 60:89-92