The rail traffic management systems have to meet requirements of high responsibility and failsafe behaviour. It is expected that these systems will give a possibility of real-time rail traffic monitoring and ensure information ...
The rail traffic management systems have to meet requirements of high responsibility and failsafe behaviour. It is expected that these systems will give a possibility of real-time rail traffic monitoring and ensure information ...
Air quality is a matter of considerable concern as it affects public health, the environment and the economy of developed countries. Recent research has shown that air pollution can increase the incidence of diseases and impair ...
In this paper we present a new photo-sensible device based on ZnO/PEDOT:PSS heterojunction. The formation of ZnO layer was made by electrochemical deposition of Zn from zinc nitrate solution over a transparent ITO electrode ...
In the following article a converter, providing mutual work between photovoltaic system and energy storage elements have been studied. The converter provides the management of the energy flows to/from the supercapacitor battery. ...
In order to prepare the students for the challenges of their future job the Faculty of Electronic Engineering and Technologies at Technical University of Sofia accepted a new curriculum for Bachelor degree in Electronics which ...
Calculation methods, simulations and experimental measurement are carried out in the paper. The procedures include Method of Moments (MoM), empirical engineering equations for design of horizontal and vertical grounding rod ...
In this paper, we present a novel approach for the design of near-perfect-reconstruction twoband IIR quadrature-mirror filter banks. The proposed design method is carried out in the polyphase domain, where IIR filters are ...
In this paper an own developed FDTD simulation environment is employed for antenna analysis in a wireless sensor network for traffic monitoring. The analyzed antenna is part of a WSN node that is placed in the street. The ...
This article is devoted to the study of the magnetoelectric element based on magnetostrictivepiezoelectric laminate for use in energy harvesting devices. Magnetoelectric element works on the magnetoelectric effect which exhibits ...
In the paper the low-frequency eddy currents into solid conductors embedded in a slot are theoretically analyzed. The electromagnetic field in conductors has been calculated using numerical method with a program based on finite ...