Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Mishonov, T. M."'
Autor:
Mishonov, T. M., Petkov, A. P., Andreoni, M., Petkov, E. G., Varonov, A. M., Dimitrova, I. M., Velkoska, L., Popeski-Dimovski, R.
Publikováno v:
Nat. Sci. Adv. Technol. Educ., vol. 30, issue 3 (2021)
This is the problem of the 8$^\mathrm{th}$ International Experimental Physics Olympiad (EPO). The task of the EPO8 is to determine Plank constant $\hbar=h/2\pi$ using the given set-up with LED. If you have an idea how to do it, do it and send us the
Externí odkaz:
http://arxiv.org/abs/2106.01337
Autor:
Mifune, T., Mishonov, T. M., Serafimov, N. S., Dimitrova, I. M., Popeski-Dimovski, R., Velkoska, L., Petkov, E. G., Varonov, A. M., Barone, A.
Publikováno v:
Rev. Sci. Instrum. Vol. 92, 025123 (2021)
For the need of measurements focused in condensed matter physics and especially Bernoulli effect in superconductors we have developed an active resonator with dual operational amplifiers. A tunable high-Q resonator is performed in the schematics of t
Externí odkaz:
http://arxiv.org/abs/2105.11536
Publikováno v:
Eur. J. Phys. Vol. 42 045502 (2021)
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:
http://arxiv.org/abs/2010.11229
Heat capacities at fixed volume and pressure as a function of the degree of ionization are graphically depicted as functions of reciprocal temperature and ionization degree. The polytropic index is calculated as a function of the same variables; as i
Externí odkaz:
http://arxiv.org/abs/2009.00415
Autor:
Mishonov, T. M., Danchev, V. I., Petkov, E. G., Gourev, V. N., Dimitrova, I. M., Serafimov, N. S., Stefanov, A. A., Varonov, A. M.
Publikováno v:
J. Phys. Commun. 3 035004 (2019) (open access)
The time dependent master equation from the seminal article by Ragazzini, Randall and Russell [J. R. Ragazzini, R. H. Randall and F. A. Russell, "Analysis of Problems in Dynamics by Electronic Circuits", Proc. of the I.R.E., Vol. 35, pp. 444--452, (1
Externí odkaz:
http://arxiv.org/abs/1903.06918
Publikováno v:
Phys. Scr. 95 065501 (2020)
We predict a new effect in condensed matter surface magnetization of the vortex phase of a superconductor induced by electric field. The magnetized superconductor should be one of the plates of a plane capacitor on which a voltage has to be applied.
Externí odkaz:
http://arxiv.org/abs/1903.06940
Publikováno v:
Eur. Phys. J. B 92, 158 (2019)
Explicit analytical expressions for conductivity of a superconducting film above and below critical temperature in an arbitrary electric field are derived in the frameworks of the time dependent Ginzburg-Landau theory. It is confirmed that slightly b
Externí odkaz:
http://arxiv.org/abs/1901.09685
Autor:
Mishonov, T. M., Varonov, A. M.
Publikováno v:
Appl. Num. Math., Vol. 157, 291-306, 2020
The performed numerical analysis reveals that Wynn's identity for the compass $1/(N-C)+1/(S-C)=1/(W-C)+1/(E-C)=1/\eta$ (here C stands for center, the other letters correspond to the four directions of the compass) gives the long sought criterion, the
Externí odkaz:
http://arxiv.org/abs/1901.06014
Publikováno v:
Physica A: Stat. Mech. Appls., Vol. 530, 121577, 2019
We re-derive the Nyquist theorem and Callen-Welton fluctuation-dissipation theorem (FDT) as a consequence of detailed balance principle applied to a harmonic oscillator. The usage of electrical notions in the beginning makes the consideration underst
Externí odkaz:
http://arxiv.org/abs/1811.06944
Autor:
Mishonov, T. M., Petkov, E. G., Mihailova, N. Zh., Stefanov, A. A., Dimitrova, I. M., Gourev, V. N., Serafimov, N. S., Danchev, V. I., Varonov, A. M.
Publikováno v:
Eur. J. Phys. 39, 065202 (2018)
A simple experiment for the electron charge $q_e$ measurement is described. The experimental set-up contains standard electronic equipment only and can be built in every high-school lab all around the world with pocket money budget for several days.
Externí odkaz:
http://arxiv.org/abs/1807.04688