Volume 36 / C o n t e n t s

1. Peter Velinov, Simeon Asenovski, Lachezar Mateev
SPECTRA OF ANOMALOUS COSMIC RAYS IN ATMOSPHERE. SINGLY IONIZED AND MULTIPLY CHARGED ACR COMPONENTS
DOI: https://doi.org/10.3897/arb.v36.e01
5
2. Atanas Atanassov
DEVELOPING SITUATIONAL CONDITIONS AND PROGRAM CODES FOR PARALLEL SITUATIONAL ANALYSIS SOLVER BASED ON CONIC UMBRA/SUNLIT MODELS
DOI: https://doi.org/10.3897/arb.v36.e02
15
3. Assen Marinov
DETERMINE COVERAGE CHARACTERISTICS OF EARTH SATELLITE
DOI: https://doi.org/10.3897/arb.v36.e03
29
4. Pavel Penev
DIFFERENT ASPECTS OF THE USE OF SMALL SATELLITES FOR OBSERVATION
OF THE MODERN STAGE

DOI: https://doi.org/10.3897/arb.v36.e04
37
5. Tsvetan Georgiev, Siyka Simeonova, Luba Dankova
ON THE DELAY OF THE ADDITIONAL MORTALITY LINKED TO THE GEOMAGNETIC DISTURBANCES
DOI: https://doi.org/10.3897/arb.v36.e05
51
6. Daniela Avetisyan, Nataliya Stankova
OBSERVATION OF SPECTRAL INDICES PERFORMANCE FOR POST-FIRE FOREST MONITORING
DOI: https://doi.org/10.3897/arb.v36.e06
67
7. Nadya Yanakieva, Daniela Avetisyan
TESTING OPTICAL SPECTRAL INDICES FOR ASSESSMENT OF SURFACE CHANGES DUE TO PERMAFROST MELTING ON LIVINGSTON ISLAND, ANTARCTICA
DOI: https://doi.org/10.3897/arb.v36.e07
79
8. Deyan Moni, Daniela Avetisyan
COMPARATIVE ANALYSES OF SECONDARY ECOLOGICAL SUCCESSION FOLLOWING WILDFIRES IN THREE DISTINCT FOREST TYPES. A STUDY CASE FROM MOGUER, SPAIN
DOI: https://doi.org/10.3897/arb.v36.e08
94
9. Andrey Stoyanov
APPLICATION OF SATELLITE DATA FOR MONITORING THE RETREAT OF MOUNTAIN GLACIER MORTERATSCH, SWISS ALPS, OVER A PERIOD OF 51 YEARS
DOI: https://doi.org/10.3897/arb.v36.e09
107
10. Konstantin Metodiev
SYSTEM IDENTIFICATION OF AIRCRAFT LONGITUDINAL MOTION BY MEANS OF
FLIGHT SIMULATOR DATA

DOI: https://doi.org/10.3897/arb.v36.e10
115
11. Svetoslav Zabunov, Garo Mardirossian
HYBRID MULTICOPTER DESIGNS
DOI: https://doi.org/10.3897/arb.v36.e11
124
12. Evgeni Hubenov, Zoya Chiflidjanova
INTELLIGENT MONITORING AND PROTECTION SYSTEM OF CRITICAL INFRASTRUCTURE BASED ON MOBILE COMMUNICATION-INFORMATION SYSTEM WITH ELEMENTS OF ARTIFICIAL INTELLIGENCE
DOI: https://doi.org/10.3897/arb.v36.e12
131
13. Teodor Stănescu, Daniel Ușeriu
PERFORMANCE ANALYSIS OF CURVED SHAPE ON THE INLET GUIDE VANES IN
CENTRIFUGAL BLOWERS

DOI: https://doi.org/10.3897/arb.v36.e13
147
14. Abbasali Saboktakin, Mohammad Monjezi
REUSABLE AND LOW COST SPACE ROCKET ENGINE WITH HIGH EFFICIENT PROPELLANT PUMP
DOI: https://doi.org/10.3897/arb.v36.e14
157
15. Anna Bouzekova-Penkova, Silviya Simeonova, Dimiter Teodosiev
AFM ANALYSIS OF GLASSY CARBON COATINGS AFTER AN EXTENDED STAY ON THE INTERNATIONAL SPACE STATION (ISS)
DOI: https://doi.org/10.3897/arb.v36.e15
169
16. Aleksandar Tsanev, Korneli Grigorov, Hristo Kolev, Anna Bouzekova - Penkova,
Boyko Tsyntsarski, Peter Tsvetkov, Dimitar Teodosiev

XPS INVESTIGATION OF THE WORK FUNCTION OF GLASS CARBON COATINGS AFTER EXTENDED STAY ON THE INTERNATIONAL SPACE STATION (ISS)
DOI: https://doi.org/10.3897/arb.v36.e16
177
17. Petar Getsov, Dimitar Teodosiev, Nikolay Zagorski, Garo Mardirossian, Dimo Zafirov
IMPACT OF SPACECRAFT AND ISS ENGINES ON EXPERIMENTAL SAMPLES OF VARIOUS MATERIALS MOUNTED ON THE OUTER SURFACE OF THE "ZVEZDA" MODULE
DOI: https://doi.org/10.3897/arb.v36.e17
189
  Reviews  
  Milen Chanev, Lachezar Filchev
REVIEW OF THE APPLICATIONS OF SATELLITE REMOTE SENSING IN ORGANIC FARMING – PART II
DOI: https://doi.org/10.3897/arb.v36.e18
201
  Iskren Ivanov, Lachezar Filchev
IN-FLIGHT AND ON-ORBIT CALIBRATION OF LUNAR IMAGING SPECTROMETERS – A REVIEW
DOI: https://doi.org/10.3897/arb.v36.e19
210
  New books  
  INTRODUCTION TO COSMONAUTICS
DOI: https://doi.org/10.3897/arb.v36.e20
224