Abstract is missing.
- Meridian features of the ionosphere behavior during disturbances on April 19-21, 2020Olga A. Maltseva, Tatyana V. Nikitenko, Arun Kumar Singh. 1-8 [doi]
- ISAR Image Reconstruction Algorithm's StructureAndon Lazarov, Ivan Garvanov. 9-13 [doi]
- Redline Atomic-Oxygen-Airglow Image Restoration for the VIOLET CubeSat MissionAlex L. Voisine, Brent R. Petersen. 14-18 [doi]
- Using Drones for Resilience: A System of Systems PerspectiveBoris Shishkov, Todor Branzov, Krassimira Ivanova, Alexander Verbraeck. 19-25 [doi]
- Fractional-Bits per Symbol Using Non-Powers-of-2-Point ConstellationsBenjamin J. Wedemire, Brent R. Petersen. 26-30 [doi]
- Effects of Mobile Phone Electromagnetic Fields on Human Brain ActivityMagdalena Garvanova, Ivan Garvanov, Daniela Trapkova, Krasimir Nedelchev, Daniela Borissova, Georgi Petrov Dimitrov, Nurassyl Kerimbayev, Galina Tkach, Inabat Zeinullayeva. 31-36 [doi]
- Inspection Of Buildings For Energy EfficiencySilviya A. Letskovska, Nikolay A. Mollov, Eldar D. Zaerov. 37-42 [doi]
- Application of European Union directives on energy efficiency of building systems in practical training of students in RES technologiesKamen D. Seymenliyski, Radostin S. Dolchinkov, Radoslav R. Simionov. 43-47 [doi]