Search Results - "Serafimov, Nikola S."

Q-Factor of the Resonators With Frequency Dependent Negative Resistor by Mishonov, Todor M., Dimitrova, Iglika M., Serafimov, Nikola S., Petkov, Emil G., Varonov, Albert M.

“…The frequency dependent impedance of Frequency Dependent Negative Resistor (FDNR) or D-element is calculated using frequency dependent open-loop gain of the…”
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Probability distribution function of crossover frequency of operational amplifiers by Mishonov, Todor M., Petkov, Emil G., Dimitrova, Iglika M., Serafimov, Nikola S., Varonov, Albert M.

“…For the first time the cumulative distribution function and histogram of the crossover frequency of a contemporary operational amplifier ADA4898-2 is…”
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Set-up for observation thermal voltage noise and determination of absolute temperature and Boltzmann constant by Mishonov, Todor M, Serafimov, Nikola S, Petkov, Emil G, Varonov, Albert M

“…Eur. J. Phys. 43 035103 (2022) We describe a set-up for measurement of the absolute zero by Johnson-Nyquist thermal noise which can be performed within a week…”
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Probability distribution function of crossover frequency of operational amplifiers by Mishonov, Todor M, Marinov, Vladimir G, Danchev, Victor I, Petkov, Emil G, Petkov, Aleksander P, Dimitrova, Iglika M, Gourev, Vassil N, Serafimov, Nikola S, Stefanov, Aleksander A, Varonov, Albert M

“…Measurement Vol. 179, 109509 (2021) For the first time the cumulative distribution function of the crossover frequency of a contemporary operational amplifier…”
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