CONTENTS

 

 

Wintner, E., H. Kofler, A. Agarwal, M. Deneva, M. Nenchev, Laser Ignition of Engines – A Contribution to Environmental Protection and a Challenge to Laser Technology

1

Deneva, M., M. Nenchev, E. Wintner, S. Topsu, Two-Line High-Power Single Active Element Nd:YAG Quantum Electronics Generator with Coaxial Architecture-Optimization

9

Djamiykov, T., Sun Altitude Sensor

13

Kim, N., A. Andonova, Computationally Efficient Methods for Decision Feedback Algorithms based on Minimum Error Entropy

17

Bozhikova, V., M. Stoeva, Search-based Approach for Software Cost Estimation

20

Rao, P., S. Milosavljevic, U. Kroth, Ch. Laubis, St. Nihtianov, High Efficiency UV Photodiodes Fabricated on p-type Substrate

24

Mohammadi, V., S. Mohammadi, S. Ramesh, St. Nihtianov, Numerical Gas Flow and Heat Transfer Simulation in the ASM Epsilon 2000 CVD Reactor for Pure Boron Deposition

28

Delibozov, N., R. Radonov, M. Hristov, Design and Fabrication of ”Matrix” MEMS Device

32

Gieva, E., M. Todorov, T. Takov, B. Nikolova, Integrated Sensors’ Modelling via Different Circuit Simulators

36

Spasov, G., Method for Auger Analyses of Thick Insulators Samples

40

Aleksandrova, M., Sv. Andreev, I. Ruskova, G. Dobrikov, Flexible Thick Film Electroluminescent Devices: Influence of the Mechanical Stress on Layers Behavior

43

Vucheva, Y., G. Kolev, M. Aleksandrova, K. Denishev, Influence of the Polarization on Some Dielectric Parameters of Thin PVDF Layers

47

Hallez, H., P. Alcala, J. Boydens, Fall Detection Using Multi-sensory Accelerometer Sensor Network

51

Shoshkov, Ts., G. Mihov, Real-Time Subtraction Procedure for Power-Line Interference Removing from ECG: High Level Synthesis with Compaan

54

Dobrev, D., T. Neycheva, Software PLL for Power-line Interference Synchronization: Design, Modeling and Simulation

58

Dobrev, D., T. Neycheva, Current Driven Automatic Electrode Impedance Balance for Ground-free Biosignal Acquisition

62

Feradov, F., T. Ganchev, Detection of Negative Emotional States from Electroencephalographic (EEG) Signals

66

Jekova, I., V. Krasteva, Al. Kalaydjiev, Ts. Mudrov, S. Ménétré, J.-Ph. Didon, Respiration Detection Implemented in Multichannel ECG Front End Module: A Preliminary Study

70

Tabakov, S., Real Time Detecting of Pacemaker Artifacts

74

Tsibulko, V., I. Iliev, I. Jekova, Methods for Detecting Pacemaker Pulses in ECG Signal: A Review

77

Tsibulko, V., Features and Application of ADAS1000/ADAS1000-1/ADAS1000-2 Low Power-Five Electrode ECG System

81

Spasova, V., Experimental Evaluation of Keypoints Detector and Descriptor Algorithms for Indoors Person Localization

85

Shopov, M., G. Petrova, G. Spasov, Prototype of a Medical Gateway for Personal Healthcare Systems - Design and Implementation

88

Petrova, G., Patient Data Integration in Electronic Health Record Systems

92

Grigorova, Ts., K. Asparuhova, Unified Method for Behavioral Modeling of IGBT

96

Manolov, E., CMOS High-Swing Current Mirror Sizing: A Case Study

100

Kovacheva, M., E. Stoimenov, I. Pandiev, FPGA – based Arbitrary Integer Frequency Divider with 50% Duty Cycle of the Output Signal

104

Stoimenov, E., I. Pandiev, M. Kovacheva, Modeling and Implementation of FPGA – Based Flexible Voltage-to-Frequency Converter

108

Manoilov, P., Design and Investigation of a Multi-Core System on Chip

112

Gadjeva, E., Development of Computer-Aided Approach to Parameter Extraction of Spiral Inductor Model

116

Yordanov, R., I. Ucherdzhiev, I. Yordanova, Automated System for Visual Control in Microelectronics

120

Genoff, J., Floating Gate EPROM Instability for True Randomness Generation

124

Ribov, B., Multipath Effects in High Speed Digital Radio Communications

128

Jordanova, L., L. Laskov, D. Dobrev, Investigation on DVB-S2 Channel Characteristics

132

Valkov, K., I. Dochev, Overview of Electromagnetic Interference Impact over Wireless Systems for Control and Data Acquisition Working on 2.4 GHz ISM Band

136

Shehova, D., P. Yakimov, Teaching PLL Fundamentals Using MATLAB/Simulink

139

Shehova, D., P. Yakimov, Sl. Lyubomirov, A. Chekichev, Active Filters Design Teaching Using FilterProTM Software

143

Goranova, M., Y. Danchev, L. Stoyanova, Automatic Student Assessment in C# .NET Windows Forms/Console Applications

146

Stefanova, S., T. Vasileva, Trialogical Approach to Knowledge Practices in CAD Education

150

Vasileva, T., V. Tchoumatchenko, S. Stefanova, KNORK Project Objectives

154

Vasileva, T., V. Tchoumatchenko, Promoting Knowledge Practices in Electronic Education

158

Stoeva, M., V. Bozhikova, Hierarchical Model for Storage and Retrieval of Images Content-Based Systems

162

Minkov, D., H. Yamada, Main Characteristics of the Tabletop Synchrotron Light Sources MIRRORCLE

166

Djermanova, N., J. Kiss’ovski, V.  Vatchkov, Portable Arduino – Based LCR – Meter

 

170

Yordanov, R., R. Miletiev, E. Iontchev, I. Simeonov, Study of Asynchronous Mode of Quad Sensor Structure

174

Hensel, St., M. Marinov, Time Signal Based Warping Algorithms for Low Speed Velocity Estimation of Rail Vehicles

177

Nikolov, G., Extending Capability of Modular Source – Measure Units using Virtual Technique

181

Georgiev, P., I. Zhivkov, M. Vala, D. Todorov, R. Yordanov, M. Weiter, Wide Range Current Amplifier with Data Acquisition System

185

Kokolanski, Z., Cv. Gavrovski, Vl. Dimcev, Simple Sensor-to-Personal Computer Interface by Using Virtual Instrumentation

189

Cordemans, P., E. Thyebaut, D. Pissoort, J. Boydens, Embedded Software Resilience

192

Badarov, D., G. Mihov, Multifunctional Analyzer for Audio Signals Based on Xilinx FPGA

196

Bogdanov, L., R. Ivanov, Reducing Energy Consumption in Asynchronous and Synchronous Data Transfers

200

Krastev, K., Ts. Gotsov, A. Manukova-Marinova, Embedded System for Measurements and Data Acquisition with Web Interface Based on ARM Processors

204

Andreev, A., Embedded Management of Electronic Health Records

208

Astardzhiev, B., S. Ivanov, A Method for Provisioning a Twisted Pair Cable’s Integrity Based on a Reflected Waveform Analysis of an Emitted Pulse

212

Dimitrov, Vl., P. Goranov, Analysis of a synchronous DC-DC converter working between two voltage sources

215

Kunov, G., E. Gadjeva, M. Petkova, T. Brusev, Stability Investigation using SPICE of BUCK  DC-DC Converter

219

Nedialkov, I., D. Arnaudov, N. Hinov, Stand for Testing of Bi – Directional Converters in Photovoltaic Systems

223

Stoyanov, R., E. Rosenov, A. Marinov, V. Valchev, Modelling, Simulations and Design Considerations for Inrush Current Limiting Topologies

227

Marinov, A., E. Rosenov, R. Stoyanov, Modeling and Simulation of an Improved Microcontroller Based Desaturation Current Protection

231

Madankov, Y., Al. Vuchev, N. Bankov, Dynamic PSpice Model of CO2 Laser Tube

235

Spirov, D., N. Komitov, Three-Phase Soft-Switched Quasi Resonant DC Link Inverter for AC Motor Drives with Different Clamps

239