year 2019

20190910-full
Issue 9-10, 2019

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 54. No 9-10/2019
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20190910-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE

Aydan Haka
Software tool for comparing LTE traffic prioritisation algorithms 146

ELECTRICAL ...  read more

20190910-01
Software tool for comparing LTE traffic prioritisation algorithms
Aydan Haka

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The anticipated expansion of LTE subscriptions worldwide, affect the need to improve QoS. This can be done by extending and improving the existing network architecture and implementing new algorithms for traffic prioritisation. ...  read more

20190910-03
DC-DC converter for interfacing PV panel to micro-inverter
Zahari Zarkov

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Photovoltaic (PV) energy has become competitive in power generation as an alternative to fossil fuels over the past decades. The installation of solar energy systems is expected to increase rapidly with the further development ...  read more

20190910-04
Review for choosing the correct BLDC controller
Vasil Vasilev, Emil Vladkov

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The article presents a review of how to pick or design the correct most cost-effective BLDC (Brushless Direct Current) motor controller to fit the needs of the project. After a brief overview of the history and presenting ...  read more

20190708-full
Issue 7-8, 2019

ELECTROTECHNICA

 ...  read more

20190708-02
Links throughput evaluation in the telecommunication networks
Seferin Mirtchev

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When planning the telecommunication networks it is important to determine the link throughput to provide quality of service, to prevent network overloading and to avoid bottlenecks. In this paper, a method for evaluating the ...  read more

20190708-04
Academic writing and integration of technology
Maria Todorova, Elena Koleva

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Communication in a foreign language is already becoming a daily routine for many, personally, professionally and academically. Professional realization requires skills for writing documents such as biographies, cover letters, ...  read more

20190708-03
Simulation design of piezoelectric ultrasonic IoT-sensor (PMUT)
Mila Ilieva-Obretenova

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Of particular interest is the development of an aromatic image synthesizer that can reproduce a given variety of aromas in the surrounding environment, leading to indirect changes in psychophysiological indicators and behavioral responses of the human body.

 ...  read more

20190708-01
Modeling multi-layered soil by equivalent uniform and two-layer soil models in grounding applications
Marinko Barukčić, Nenad N. Cvetković, Željko Hederić, Toni Varga

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The soil models are crucial for calculating the performances of the grounding systems in electrical engineering. Usually, some approximations and simplified calculation procedures are used in engineering practice. These procedures ...  read more

20190506-full
Issue 5-6, 2019

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 54. No 5-6/2019
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20190506-full

C O N T

 ...  read more