Volume 58

20230400-01
Investigating the effects of glasses on electric field distribution from a mobile phone inside the human eye during web surfing

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This paper discusses the effects of the glasses exposed to electromagnetic radiation from mobile phones on the electric field distribution inside the human eye. The numerical analysis has been performed for the case when the ...  read more

20230300-04
Software-defined radio (SDR) versus Digital Signal Processor (DSP) hardware – a comparison of approaches in teaching RF communications at Sofia University
Emil E. Vladkov, Stanimir T. Kolev

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Teaching modern communication technology undoubtedly requires students to be familiar with the latest standards for digital radio frequency transmission and modulation. In times of rapid development in this field, however, ...  read more

20230400-full
Issue 4, 2023

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 58. No 4/2023
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20230400-full

C O N T E N T S

Dejan Jovanovic, Vladimir Stankovic, Nenad Cvetkovic, Dragana Zivaljevic, Dragan Vuckovic
Investigating ...  read more

20230400-05
A review of brain-computer interfaces and their applications

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Brain-Computer Interfaces (BCIs) have emerged as a transformative technology at the intersection of neuroscience, engineering, and computer science. This paper provides a concise overview of the recent achievements and ongoing ...  read more

20230400-04
Application of orthogonal controllers in control of the nonlinear industrial dynamical systems

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In this study, we introduce a novel application of orthogonal controllers within control systems theory. Specifically, we propose a novel approach for utilizing generalized orthogonal Malmquist polynomials, also known as Müntz ...  read more

20230400-03
Machine learning application in cylindrical permanent magnet force calculation

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The intention is for this paper to be the proof of concept that permanent magnet force, usually calculated using method based on fictitious magnetic charges or Ampere’s current approach, can be predicted using one of the ...  read more

20230400-02
Further experimental research of interval overlapping method for biomedical signal measurement

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Following the idea for the device development for precisely measurement of biomedical signals, the development of a computer-based instrument has begun. To design and realize the computer-based instrument for measurement of ...  read more

20230300-full
Issue 3, 2023

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 58. No 3/2023
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20230300-full

C O N T E N T S

Pavlina Shopova, Maria Todorova, Lilyana S. Koleva, Elena G. Koleva
Evaluation ...  read more

20230300-04
Computer vision
Juliana R. Svetlozarova, Ilonka D. Vutova

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This is a report on the topic “Computer Vision”. Its analysis examines issues related to the recognition of objects and the determination of their spatial organization. In order to recognize these objects that ...  read more

20230300-03
Using artificial intelligence for object recognition in three-dimensional video games
David Livshits, Georgi Hristov

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The report explores the use of artificial intelligence for object recognition in three-dimensional video games. A methodology for collecting a sufficient volume of images, which are subsequently analyzed and processed by adding ...  read more