Volume 56

20210508-05
Computer integrated laboratory for teaching electronics at undergraduate level
Marko A. Dimitrijević

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There are several approaches to implementation of computer assisted laboratory for basic electronic education. Trying to keep the advantages of the available concepts such as classical individual work, remote access laboratory, ...  read more

20210304-full
Issue 3-4, 2021

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 56. No 3-4/2021
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20210304-full

C O N T E N T S

COMPUTER SCIENCE
Krassimira Schwertner
Public and private autonomous data base cloud 29

Ivaylo E. Ivaylov
EEG ...  read more

20210304-01
Public and private autonomous data base cloud
Krassimira Schwertner

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The article explains and discusses a new phenomena in organization of the Data Centers. This is known as autonomous database cloud. The private autonomous cloud is the next level in the evolution of the public autonomous cloud ...  read more

20210304-02
EEG classification for BCI using genetic algorithm and k-fold cross validation
Ivaylo E. Ivaylov

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Brain-Computer Interfaces (BCIs) have become popular in the last years and are used for several applications in human-computer interfaces including attention and workload measures as well as for direct control of objects. ...  read more

20210304-03
Impact of an energy conservation measure on reducing CO2 emissions
Mila Ilieva-Obretenova

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The study uses saved energy (the expected annual economy of electrical energy) to describe the impact of energy conservation measure (М1) – Reconstruction of the electric drive and control of a basic hoisting machine, ...  read more

20210102-full
Issue 1-2, 2021

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 56. No 1-2/2021
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20210102-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE
Seferin Mirtchev, Mircho Mirchev, Georgi Georgiev
Models ...  read more

20210102-01
Models and methods for analysis of the stochastic processes in IP based networks – survey
Seferin Mirtchev, Mircho Mirchev, Georgi Georgiev

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Today, the internet network is in a base to almost any social, educational or economic activity, a true value creator that reshapes the economy and society. In the future, the IP based networks will be even more essential ...  read more

20210102-02
Influence of the middle pole shape on the force characteristic of an actuator with Т-shaped armature
Ivan Hadzhiev, Dian Malamov, Iosko Balabozov, Ivan Yatchev

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In the paper, a study of the influence of the middle pole shape on the static force characteristic of a direct-current solenoid actuator with T-shaped armature is presented. For this purpose, computer models of the actuator ...  read more

20210102-03
Thermal model of bidirectional DC/DC converter
Evgeni Malev

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The purpose of this article is to create and analyze a mathematical model of Isolated full-bridge bidirectional DC/DC converter for electric vehicle application. The article considers and analyzes mathematical models of the ...  read more