3, 2025 DOI: 10.30857/2786-5371.2025.3 PUBLISHED: 25.06.2025 TABLE OF CONTENTS Boichenko S. Ultra-wideband transmission lines for next-generation digital systems: Modelling and analysis http://doi.org/10.30857/2786-5371.2025.3.1 11 Kucherenko V., Tamarkina Yu., Redko A., Frolova I. Adsorbents derived from nitric acid-oxidised coal and activated with potassium hydroxide http://doi.org/10.30857/2786-5371.2025.3.2 24 Lazariev Ye., Sukhodub I. Analysis of the use of phase change materials to improve building energy efficiency and thermal energy storage http://doi.org/10.30857/2786-5371.2025.3.3 38 Moshensky A., Savchenko I. Information and analytical technologies for decision support in environmental monitoring systems of amalgamated territorial communities http://doi.org/10.30857/2786-5371.2025.3.4 54 Nikitin Ye. Combined energy production systems with Stirling engines: Analysis of global experience and local prospects http://doi.org/10.30857/2786-5371.2025.3.5 66 Politykin M., Yatsenko O. Integration of a solar power plant and a heat pump into a hot water supply system based on a digital twin http://doi.org/10.30857/2786-5371.2025.3.6 77 Yasenenko V. Cyber defence automation: Can AI outperform hackers? http://doi.org/10.30857/2786-5371.2025.3.7 89