Volume 52, Issue 3-4, 2017

Issue 3-4, 2017

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 52. No 3-4/2017
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20170304-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE

Georgi Balabanov
 ...  read more

Conceptualising of smart education

Smart education, a concept that describes learning in digital age, has gained increased attention. Broadly defined, smart learning environments represent a new wave of educational systems, involving an effective and efficient interplay ...  read more

Model-based optimization of electron beam welding for obtaining defect-free welds

The optimization of welds obtained by electron beam welding is a multi-criterial task, involving the requirements for the geometrical characteristics of the welds, together with the fulfilment of the requirements for lack of defects. ...  read more

Analysis and investigations on a digitally controlled LED buck driver for automotive LED applications

This article presents a configurable constant current LED driver with DSP digital control. A novel, cost-effective high-side current sensing circuit provides feedback signal, proportional to the average LED current. A fast PID controller ...  read more

Network topology analysis – graph properties that matter

This article presents correlation between network metrics with graph properties, more specifically spectral graph characteristics. This work is in the foundation of network topology analysis based on the relevant graph representation ...  read more

Challenges of quality of experience management for cloud based ambient assisted living services and applications

The aim of the Cloud Based Ambient Assisted Living (CBAAL) refers thus to the study and development of intelligent systems to support independent living of senior citizens, compensating for prevailing age-related physical and cognitive ...  read more