issue 2

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