issue 3-4

20190304-02
Spectra of multilayer networks – mathematical foundations, metrics, spectral properties
Mircho J. Mirchev

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This article reviews a generalize approach of network models of complex systems and networks by introducing layers, thus defining multilayer networks. Having the multilayer property on the network model, it can better describe ...  read more

20190304-01
Comparative analysis of the possibilities of building a decentralized control plane of a Software Defined Networks
Jordan Raychev, Diyana Kinaneva, Georgi Hristov, Plamen Zahariev

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The objective of the current paper is to be conducted a comparative analysis of the available possibilities for building a decentralized controller plane of a Software Defined Network (SDN). The SDN networks are an emerging ...  read more

20180304-full
Issue 3-4, 2018

ELECTROTECHNICA & ELECTRONICA E+E

Thirteenth International Conference on Electron Beam Technologies – EBT 2018, 18-22 June, Varna, Bulgaria

Vol. 53. No 3-4/2018
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

 

20180304-full

 

C O N T E N T S

Special issue: Scientific papers from 13-th International Conference on Electron Beam Technologies – EBT 2018, Varna, BULGARIA
Preface by Corr. Member of BAS, Prof. DSc. G. Mladenov, Assoc. Prof. Elena Koleva, Bulgaria 50

ADITIVE MANUFACTUTING, SELECTIVE MELTING

Christopher Arnold, Fuad Osmanlic, Christoph Pobel, Max Wormser, Carolin Körner
Enhanced process control during selective electron beam melting through advanced machine technology 51

Vitaliy H. Zaleski, Igar L. Pobol, Andrey A. Bakinovski, Artem D. Gubko, Alexander A. Burin
Wire based electron beam additive manufacturing of blocks and complex shape parts 55

Dmytro Kovalchuk, Vitalii Melnyk, Ihor Melnyk, Borys Tugai
Advanced technical and technological solutions for additive manufacturing by xBeam 3D metal printing 60

Vladyslav A. Matviichuk, V. M. Nesterenkov, M. O. Rusynik


 ...  read more

20140304-full
Issue 3-4, 2014

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 49. No 3-4/2014
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20140304-full

C O N T E N T S

ELECTRONICS

Mariya P. Aleksandrova, Irena P. Nestorova
Fabrication of flexible hybrid low molecular weight compound/polymer light emitting device by screen printing 2

Radoslav B. Borisov, Kaloyan I. Zlatkov, Plamen I. Dankov
Near-field measurements using low cost equipment for RF device characterization 7

Vladimir V. Dimitrov, Peter T. Goranov
Modelling of step-up DC converter 13

Svilen H. Stoyanov


 ...  read more

20140304-08
Corporate education for manufacturing (Semiconductors) – creation of a training system and technical textbook
Hiroyuki Izumo, Keisuke Konishi, Rei Wada, Takashi Imagawa, Susumu Kise, Shenji Hatada, Takeshi Tanaka, Shigeo Hirano

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Artner Co., Ltd. is currently dependant on a variety of outsourcing systems that have been implemented with a high degree of technical assistance for the completion of projects. In large scale integration (LSI) design and ...  read more

20140304-07
Neural network based approach for quality improvement of electron beam welding
Elena Koleva, Nikolinka Christova, Georgi Mladenov, Dmitrii Trushnikov, Vladimir Belenkiy

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Neural network models for the dependence of the geometry characteristics of welds from 38Cr2Ni2Mo high-strength steel, obtained at electron beam welding in presence of longitudinal beam deflection oscillations, are estimated. ...  read more

20140304-06
A functional model extension of OMA device management
Ivaylo I. Atanasov, Evelina N. Pencheva

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Machine-to-Machine (M2M) communications allow interworking of smart objects such as sensors, actuators and monitors, and development of innovative applications. Remote entity management provides means of managing M2M device ...  read more

20140304-05
Optimization of the structure and the distribution of the reactive power compensation in the industrial electrical supply systems
Nikolay Matanov

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The compensation of the reactive loads is fundamental for improving the quality of the industrial electrical supply and decreasing the losses of active power in the distribution grids. Regarding energy efficiency, capacitor ...  read more

20140304-04
A linear converter of strain-gauge bridge bidirectional disbalance into frequency deviation
Svilen H. Stoyanov

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The measurement of mechanical force and torque magnitudes by means of strain gauges based on a new method for “transforming resistance into frequency” is the object of investigation in this paper. It presents the development ...  read more

20140304-03
Modelling of step-up DC converter
Vladimir V. Dimitrov, Peter T. Goranov

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In the current paper building on the sound theoretical foundation of state-space methods a model for the boost converter is presented. Replacing some elements in the ideal power convertor with their nonideal equivalent circuits ...  read more