The Scientific-Technical Journal (STJ, online) is an open-access journal publishing peer-reviewed original and review articles, as well as short reports, on topics including: fundamental sciences (applied mathematics and physics); engineering mechanics; power engineering and microelectronics construction engineering and design; chemical engineering and ecology; information technology and telecommunication. The journal provides a platform for researchers wishing to summarize their theoretical, experimental, and practical research at the academic level and share this work as widely as possible. Published articles provide an overview of the main developments in a specific topic, with an emphasis on the latest achievements. The editorial policy is aimed at maintaining the highest quality of published articles through rigorous peer review.