year 2023

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

20230300-02
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

20230300-01
Evaluation of the integration of systems for quality management in the field of higher education
Pavlina Shopova, Maria Todorova, Lilyana S. Koleva, Elena G. Koleva

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For the purposes of continuous improvement of the quality management system in any organization, and in particular those in the field of higher education, an assessment of the degree of integration (maturity) of the system ...  read more

20230200-full
Issue 2, 2023

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 58. No 2/2023
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20230200-full

C O N T E N T S

Vladislav A. Filev
Construction and application of Database architecture for integrated business software purposes 29

Lilyana ...  read more

20230200-04
Robust model-based approach for electron beam lithography process control
Asya Asenova-Robinzonova, Elena G. Koleva

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The present study is directed toward the investigates the dependency of the geometric characteristics of the developed post-exposure negative electron resist AR-N 7520 profiles on the parameters of the electron beam lithography ...  read more

20230200-03
Invariant numerical PI control of analog processes
Milan M. Stankov

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The article presents Proportional Integral (PI)regulation of a production object with an analog measure of the final (output) output using a regulator whose control function is programmed, calculated and affects the object ...  read more

20230200-02
Classification of chest X-Ray images using Orange Data Mining Tool
Lilyana S. Koleva, Georgi A. Filipov

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In this article, the capabilities of the Orange Data Mining software product to classify chest Xray images are shown. Viewed images of patients are divided into three categories: healthy, with Covid-19 and with viral pneumonia. ...  read more

20230200-01
Construction and application of Database architecture for integrated business software purposes
Vladislav A. Filev

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In order to build an effective database architecture, an appropriate structural model is needed, which is the basis of the integration of a given management information system in business organizations. In the current development, ...  read more