Volume 28 / C o n t e n t s

1. Peter Velinov
EXTENDED CATEGORISATION OF GROUND LEVEL ENHANCEMENTS(GLEs) OF COSMIC RAYS
DUE TO RELATIVISTIC SOLAR ENERGETICPARTICLES
5
2. Alexander Yosifov, Lachezar Filipov
BLACK HOLE THERMODYNAMICS FOR PRODUCING HORIZONOSCILLATIONS
21
3. Alexander Yosifov, Lachezar Filipov
HORIZON OSCILLATIONS FOR PRESERVING THE EQUIVALENCEPRINCIPLE
32
4. Tsvetan Dachev, Borislav Tomov, Yuri Matviichuk, Plamen Dimitrov,
Vyiacheslav Shurshakov, Victor Benghin, Elena Yarmanova, Olga Ivanova, Igor Nikolaev
“LIUILIN-ISS-2” SYSTEM FOR COSMONAUTS’ DOSIMETRIC CONTROL
IN THE ISS RADIATION ENVIRONMENT
38
5. Yuriy Kuksa, Igor Shibaev, Dimitar Teodosiev, Jaroslav Vojta
DYNAMICS OF REGULAR AND INCIDENTAL EVENTS ACCORDING
TO THE MAGNETOMETRIC COMPLEX: MATERIALSOF THE “SCHUMAN” PROJECT
59
6. Dimitar Dimitrov
APPLICATION OF SPACE TECHNOLOGIES FOR STUDIES
AND MONITORING OF SEISMOGENIC ZONES
67
7. Ivan Yanev, Lachezar Filchev
A COMPARATIVE ANALYSIS BETWEEN MODIS LST LEVEL-3 PRODUCT
AND IN-SITU TEMPERATURE DATA FOR ESTIMATION OF URBAN HEATISLAND OF SOFIA
77
8. Svetoslav Zabunov
QUATERNION-BASED AUTOPILOT FOR DODECACOPTERS - PART I
93
9. Peter Petkov, Еlissaveta Аlexandrova, Маxim Zayakov
KU-BAND SMALL ATENNA FOR SATELLITE EARTH STATIONS
WITH IMPROVED RADIATION DIAGRAM
113
10. Konstantin Metodiev
A RECTANGULAR UNIPOLAR PULSE WIDTH MEASUREMENT BY MEANS OF PIC18F2550 MCU
122
  New Projects  
  DOSIMETRY SCIENCE PAYLOADS FOR EXOMARS TGO & SURFACE PLATFORM.
UNIFIED WEB-BASED DATABASE WITH LIULIN TYPE INSTRUMENTS'
COSMIC RADIATION DATA (“DOSIMETRY”)
129
  TESTING SENTINEL-2 VEGETATION INDICES FOR THE ASSESSMENT
OF THE STATE OF WINTER CROPS IN BULGARIA (TS2AGROBG)
131
  COORDINATING AND INTEGRATING STATE-OF-THE-ART EARTH OBSERVATION ACTIVITIES
IN THE REGIONS OF NORTH AFRICA, MIDDLE EAST, AND BALKANS AND DEVELOPING LINKS
WITH GEO RELATED INITIATIVES TOWARDS GEOSS - GEO-CRADLE
133
  EEOBSS: EDUCATION IN EARTH OBSERVATION FOR BULGARIAN SECONDARY SCHOOLS 135
  Jubilee  
  Tanya Ivanova
VALENTINA TERESHKOVA CELEBRATES 80th ANNIVERSARY
137