Zobrazeno 1 - 10
of 2 102
pro vyhledávání: '"Konovalenko, A."'
Autor:
Konovalenko, Olexandr, Zakharenko, Vyacheslav, Novosyadlyj, Bohdan, Gurvits, Leonid I., Stepkin, Sergiy, Vasylkivskyi, Yevhen, Tokarsky, Petro, Ulyanov, Oleg, Stanislavsky, Olexandr, Bubnov, Igor
Publikováno v:
Journal of Physical Studies, V. 28, No.1, id. 1902, 2024 (in Ukrainian)
We analyze the possibilities of detecting a signal in the hydrogen 21~cm line, which was formed in the early Universe during the the Dark Ages cosmological epoch, using the Ukrainian radio telescopes UTR-2 and GURT of the National Academy of Sciences
Externí odkaz:
http://arxiv.org/abs/2401.09096
Publikováno v:
Journal of Physical Studies, V. 28, No.1, id. 1901, 2024 (in Ukrainian)
We analyze the formation of the signal in the 21 cm hydrogen line of the Dark Ages ($30\le z\le300$) in different cosmological models and discuss the possibility of its detection by decameter-wavelength radio telescopes. To study the dependence of th
Externí odkaz:
http://arxiv.org/abs/2401.09095
Autor:
Stanislavsky, Lev A., Bubnov, Ihor N., Stanislavsky, Aleksander A., Zarka, Philippe, Loh, Alan, Viou, Cedric, Konovalenko, Aleksander A., Brazhenko, Anatolii I., Frantsuzenko, Anatolii V.
Context. Cassiopeia A occupies an important place among supernova remnants (SNRs) in low-frequency radio astronomy. The analysis of its continuum spectrum from low frequency observations reveals the evolution of the SNR absorption properties over tim
Externí odkaz:
http://arxiv.org/abs/2312.09764
Publikováno v:
Sun and Geosphere, vol.13, no.1, p.25-30, (2018)
We present the results of observations of complex powerful type II burst associated with narrow Earth-directed CME, which was ejected at around 11 UT on 31 May 2013. The observations were performed by radio telescope UTR-2, which operated as local in
Externí odkaz:
http://arxiv.org/abs/2308.00552
Publikováno v:
Економіка АПК, Vol 31, Iss 3, Pp 22-33 (2024)
In modern conditions, the export of agricultural products is one of the main sources of income for the agricultural sector of Ukraine. Thus, conducting multi-faceted studies of foreign trade in this sector is relevant. The purpose of the study was to
Externí odkaz:
https://doaj.org/article/2c42fb0f4d12406f99da6c97946164ea
Autor:
V. V. Zakharenko, O. O. Kostenko, O. O. Konovalenko, D. M. Vavriv, S. L. Prosvirnin, Y. M. Yampolski
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 2, Pp 137-169 (2024)
This paper is an attempt of paying tribute to the memory of Leonid Mykolayovych Lytvynenko (LML), an outstanding Ukrainian scientist, Full Member of the National Academy of Sciences who worked most fruitfully in the fields of radio science and radio
Externí odkaz:
https://doaj.org/article/b8793cf8fac24e179c75f0a58405a629
Publikováno v:
Baltic Journal of Economic Studies, Vol 10, Iss 2, Pp 219-231 (2024)
The purpose of this study is to analyse the current state of the economy and public finances in Ukraine and to develop an inclusive and collaborative framework for their post-war recovery. The main research methods used were quantitative, qualitative
Externí odkaz:
https://doaj.org/article/b76ff857bde046b0b9a29f3b0ceea348
Autor:
Oleg V. Drobotun, Nikolai N. Kolotilov, Volodymyr F. Konovalenko, Sergii V. Konovalenko, Nikolai N. Ternovyy
Publikováno v:
Клінічна та профілактична медицина, Iss 3, Pp 132-141 (2024)
Introduction. The article is devoted to the current problem of modern oncology – increasing the treatment effectiveness of cancer patients with comorbidities. Comorbidity is accompanied by higher rates of mortality, disability, side effects of trea
Externí odkaz:
https://doaj.org/article/c78eb9d5c1634cfcb9f4ca70f3ac49e8
Autor:
Wu, Ziwei, Coles, William A., Verbiest, Joris P. W., Ambalappat, Krishnakumar Moochickal, Tiburzi, Caterina, Grießmeier, Jean-Mathias, Main, Robert A., Liu, Yulan, Kramer, Michael, Wucknitz, Olaf, Porayko, Nataliya, Osłowski, Stefan, Nielsen, Ann-Sofie Bak, Donner, Julian Y., Hoeft, Matthias, Brüggen, Marcus, Vocks, Christian, Dettmar, Ralf-Jürgen, Theureau, Gilles, Serylak, Maciej, Kondratiev, Vladislav, McKee, James W., Shaifullah, Golam M., Kravtsov, Ihor P., Zakharenko, Vyacheslav V., Ulyanov, Oleg, Konovalenko, Olexandr O., Zarka, Philippe, Cecconi, Baptiste, Koopmans, Léon V. E., Corbel, Stéphane
Interstellar scattering (ISS) of radio pulsar emission can be used as a probe of the ionised interstellar medium (IISM) and causes corruptions in pulsar timing experiments. Two types of ISS phenomena (intensity scintillation and pulse broadening) are
Externí odkaz:
http://arxiv.org/abs/2302.02722
Autor:
Stanislavsky, Lev A., Bubnov, Igor N., Konovalenko, Aleksander A., Stanislavsky, Aleksander A., Yerin, Serge N.
Publikováno v:
A&A 670, A157 (2023)
Context. Cassiopeia A is one of the most extensively studied supernova remnants (SNRs) in our Galaxy. The analysis of its spectral features with the help of low frequency observations plays an important role for understanding the evolution of the rad
Externí odkaz:
http://arxiv.org/abs/2212.06104