Issue 11-12, 2015
ELECTROTECHNICA & ELECTRONICA E+E
Vol. 50. No 11-12/2015
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA
C O N T E N T S
ELECTRONICS
Georgi M. Mladenov
Nanotechnology – the moving force of nowadays electronics, information technologies and telecommunications 3
Dimitar D. Arnaudov, Nikolay L. Hinov, Ivan I. Nedyalkov
Comparison between circuits for charging and voltage balancing over series connected elements for energy storage 11
Marin H. Hristov, Elissaveta D. Gadjeva
Computer modeling, simulation and model parameter extraction of submicron integrated circuits using SPICE 19
Tatyana Neycheva, Roumen Kirov, Juliana Yordanova, Tsvetan Mudrov, Ivan Dotsinsky
Transcranial direct current stimulation: complex protocol and device for neurophysiological investigations 32
COMPUTER SCIENCE
Radi P. Romansky, Irina St. Noninska
Globalization and digital privacy 36
TELECOMMUNICATIONS SCIENCE
Seferin T. Mirtchev
Single server queueing model with state dependent arrival and departure rates 42
ELECTRICAL ENGINEERING
George Todorov
Analysis of the torque ripple of permanent magnet synchronous motors with inset and embedded magnets 49
Hristiyan Kanchev, Bruno François, Zahari Zarkov, Ludmil Stoyanov, Vladimir Lazarov
Study of power fluctuations and their compensation in a hybrid system with renewable energy sources 54