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Physics, other
Water – the famous unknown factor of life
Article

Water – the famous unknown factor of life

Dochev, Veselin
The demographic crisis in Bulgaria: trends, problems and prospects
Article

The demographic crisis in Bulgaria: trends, problems and prospects

Dimitrov, Slavi
Volume 12 (2025): Issue 3 (November 2025)
Issue

Volume 12 (2025): Issue 3 (November 2025)

Eddy Current Evaluation of Two-Layer Aircraft Structures with Carbon Fiber Reinforced Polymer Layers on Aluminum Alloy Substrates
Article

Eddy Current Evaluation of Two-Layer Aircraft Structures with Carbon Fiber Reinforced Polymer Layers on Aluminum Alloy Substrates

Uchanin, Valentyn, Aleschenko, Oleksiy, Derecha, Valeriy
Aerodynamic Design Methodology for Air Propellers of Swarm UAVs under Variable Mission Payloads
Article

Aerodynamic Design Methodology for Air Propellers of Swarm UAVs under Variable Mission Payloads

Bezpalyy, Viacheslav, Ukrainets, Yevgen, Myronenko, Kostyantyn, Loginov, Vasyl
Methodology for Reducing the Negative Impact of Non-Conformance in Technical Personnel Activity in the System of Continuing Airworthiness of Aircraft
Article

Methodology for Reducing the Negative Impact of Non-Conformance in Technical Personnel Activity in the System of Continuing Airworthiness of Aircraft

Shestakov, Vladimir, Kļepackis, Kirils, Kuleshov, Nikolay
Conceptual Design and Validation of a Hydrogen Training Airplane
Article

Conceptual Design and Validation of a Hydrogen Training Airplane

Kuk, Sebastian Piotr
Expert-Based Risk Assessment for Flight Safety Using Kendall's W and Pearson's Chi-Square
Article

Expert-Based Risk Assessment for Flight Safety Using Kendall's W and Pearson's Chi-Square

Petuhovs, Igors
Analysis of Eddy Current Probe Signal Model for Structural Monitoring of Aircraft Materials
Article

Analysis of Eddy Current Probe Signal Model for Structural Monitoring of Aircraft Materials

Lysenko, Iuliia, Kuts, Yurii, Uchanin, Valentyn, Mirchev, Yordan
Observation of 99Mo radioactivity produced in natural molybdenum irradiated with an electron beam from a linear industrial accelerator
Article

Observation of 99Mo radioactivity produced in natural molybdenum irradiated with an electron beam from a linear industrial accelerator

Zawistowski, Tobiasz, Wronka, Sławomir, Adrich, Przemysław, Chabera, Mariusz, Cieszykowska, Izabela, Janiak, Tomasz, Kosiński, Tymoteusz, Matusiak, Michał
Integrating X-ray fluorescence and X-ray computed tomography for comprehensive analysis of historical ceramics from the Kraków Upland
Article

Integrating X-ray fluorescence and X-ray computed tomography for comprehensive analysis of historical ceramics from the Kraków Upland

Abdelrahman, Romisaa, Wroński, Sebastian, Wojenka, Michał, Tarasiuk, Jacek, Samek, Lucyna
Estimation rate of total alpha particle emission in blood and milk of women living in city center and rural areas of Al-Muthanna Governorate-Iraq
Article

Estimation rate of total alpha particle emission in blood and milk of women living in city center and rural areas of Al-Muthanna Governorate-Iraq

Al-Zaalimiu, Tuqa H., Al-Hamzawi, Anees A.