Zobrazeno 1 - 10
of 36
pro vyhledávání: '"A M Varonov"'
Autor:
Albert M. Varonov, Todor M. Mishonov
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 35 (2024)
An initial theoretical attempt to explain the observed decrease of the polytropic/adiabatic index γ in the solar corona has been accomplished. The chemical reactions of the ionization–recombination processes in local thermodynamic equilibrium (LTE
Externí odkaz:
https://doaj.org/article/d20916344e3e4d04ba45024bde83070d
Publikováno v:
SN Applied Sciences, Vol 4, Iss 8, Pp 1-9 (2022)
Article highlights Propagation of zero sound in layered transition metal perovskites is predicted in framework of s-d exchange interaction with ferromagnetic sign. It is revealed that strong exchange interaction is created by strong s-p-d hybridizati
Externí odkaz:
https://doaj.org/article/93b94ebe4f554200a09514de9e1f365c
Publikováno v:
SN Applied Sciences, Vol 4, Iss 8, Pp 1-11 (2022)
Article Highlights Strong anisotropy of the scattering rate along the Fermi surface is explained as a consequence of s-d Kondo interaction. The linear temperature dependence of the Ohmic resistance is caused by wave scattering by thermal density fluc
Externí odkaz:
https://doaj.org/article/7215620aa138476098b07e6a82f7bce0
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 69:694-698
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9c8ab17260d721c569d87136b0e724c
https://doi.org/10.1109/tcsii.2021.3111488
https://doi.org/10.1109/tcsii.2021.3111488
Autor:
Matteo Andreoni, E. G. Petkov, I. M. Dimitrova, Ss. Cyril, Riste Popeski-Dimovski, Albert M. Varonov, Todor M. Mishonov, Aleksander P. Petkov, Leonora Velkoska
Publikováno v:
Natural Science and Advanced Technology Education. 30:253-270
This is the problem of the 8th International Experimental Physics Olympiad (EPO8). The task of the EPO8 is to determine Planck constant ħh/2 using the given set-up with LED. If you have an idea how to do it, do it and send us the result;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7893fded1d033d133fdc735c06b2b58c
https://doi.org/10.53656/nat2021-3.03
https://doi.org/10.53656/nat2021-3.03
The polytropic (adiabatic) index for pure hydrogen plasma is analytically calculated as function of reciprocal temperature and degree of ionization. Additionally, the polytropic index is graphically represented as a function of temperature and densit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d02bd382dcf4f0f62ec0ce3d2e14bd76
Publikováno v:
European Journal of Physics. 43:035103
We describe a set-up for measurement of the absolute zero by Johnson-Nyquist thermal noise which can be performed within a week in every high-school or university. Necessary electronic components and technical guidelines for the construction of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fc87792bf5f4ec657decb73a29f2bae
https://doi.org/10.1088/1361-6404/ac5e15
https://doi.org/10.1088/1361-6404/ac5e15
The effective mass of a magnon in a neodymium magnet is evaluated using Bloch temperature dependence of spontaneous magnetization. We used the Hall effect magnetometer and thermo-couple thermometer for measuring of the temperature of the water in whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52a66aace7c3202189451c2ccd54d889
http://arxiv.org/abs/2010.11229
http://arxiv.org/abs/2010.11229
Autor:
Todor M. Mishonov, Albert M. Varonov
We describe electronic instruments for creation of effective Cooper pair spectroscopy. The suggested spectroscopy requires study of electric field effects on the surface of cleaved superconductors. The electronic instrument reacquires low noise ampli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29fe20fb4de27b565f8986dbeca91514
http://arxiv.org/abs/2009.12315
http://arxiv.org/abs/2009.12315
Autor:
T M Mishonov, E G Petkov, N Zh Mihailova, A A Stefanov, I M Dimitrova, V N Gourev, N S Serfamov, V I Danchev, A M Varonov
Publikováno v:
European Journal of Physics. 43:029501
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59754065677e73e2230eaebe7e8464fd
https://doi.org/10.1088/1361-6404/ac42b7
https://doi.org/10.1088/1361-6404/ac42b7