issue 1

20230100-full
Issue 1, 2023

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 58. No 1/2023
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20230100-full

C O N T E N T S

Nedko I. Perchemliev
Design of press for thermal welding of polymers 1

Ventsislava V. Dimitrova, Lilyana S. Koleva
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20230100-01
Design of press for thermal welding of polymers
Nedko I. Perchemliev

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In this article, the methods of welding polymer materials are briefly presented. The whole process of designing a machine – a press for thermal welding of polymer materials (industrial plastics) has been tracked. The separate ...  read more

20230100-02
Development and implementation of a national conference relational database in MS Access
Ventsislava V. Dimitrova, Lilyana S. Koleva

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Holding a national conference involves processing of a large amount of documents and information related to the smooth running of the event. In this paper, the development of a relational database in the MS Access environment ...  read more

20230100-03
Analysis of the impact of two energy conservation measures on reducing CO2 emissions
Ivan Prodanov, Mila Ilieva-Obretenova

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The study uses saved energy (the expected annual economy of electrical energy) to describe the impact of two energy conservation measures (ECM) on reducing CO2 emissions. The first measure M1 is Reconstruction of the electric ...  read more

20230100-04
Manufacturing operations management system for the electron beam welding: process modelling using IEC/EN 62264 standard
Plamen V. Vasilev, Elena G. Koleva

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In the presented work the IEC/EN 62264 standard is implemented for the Manufacturing Operations Management (MOM) system modelling of the electron beam welding process. The basic information system structural elements for enterprise ...  read more