issue 3-4

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

20200304-full
Issue 3-4, 2020

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 55. No 3-4/2020
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20190304-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE
Takeshi Tanaka, Nobuharu Okamitsu, Takuma Hamada, Kenshi Nishino
 ...  read more

20200304-01
Development of an IoT device using SigFox, ThingSpeak, and MATLAB/Simulink
Takeshi Tanaka, Nobuharu Okamitsu, Takuma Hamada, Kenshi Nishino

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We installed a Sigfox antenna at Hiroshima Institute of Technology and acquired basic environmental data via the Sigfox network. The IoT device created by us comprises Sigfox, ThingSpeak, and MATLAB/Simulink, and this configuration ...  read more

20200304-02
Electroencephalography for TV advertisement decomposition
Georgi Tsenov , Stilyan Georgiev, Stanimir Andonov, Valeri Mladenov

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With the introduction of mobile devices with easy to access high processing power, in the late years is possible to perform analysis of bio signals in real time at any place. Such is the case for electroencephalographic signals ...  read more

20200304-03
A study of the efficiency as a usability characteristic in E-learning environment
Maria Todorova, Lilyana Koleva, Elena Koleva

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The world of technology is changing at an extremely fast pace. Covid-19 has given further impetus to modernization in education, and it seems unlikely that schools and universities will continue to function as they did before ...  read more

20200304-04
Cyberlearning and engineering education – survey
Seferin Mirtchev

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The traditional educational research focuses primarily on students’ test scores or obtaining credits, and the learning scientists often deals with knowledge, skills and competencies. The term “cyberlearning” ...  read more

20190304-full
Issue 3-4, 2019

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 54. No 3-4/2019
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20190304-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE

Jordan Raychev, Diyana Kinaneva, Georgi Hristov, Plamen Zahariev
Comparative analysis of the possibilities of building a decentralized control plane of a Software Defined Networks 41

Mircho J. Mirchev
Spectra of multilayer networks – mathematical foundations, metrics, spectral properties 49

Seferin Mirtchev, Rossitza Goleva, Dimitar Atamian, Ivan Ganchev


 ...  read more