The present work aims in providing guidelines for the aerodynamic and performance
optimization of fixed-wing Unmanned Aerial Vehicles (UAVs) that operate in the low-speed …

Energy security affects the functioning of countries politically, economically, and socially.
Energy is an important factor in sustainable development efforts. Hence, countries are …

The focus of this paper is the relationship between sustainable energy sources and financial
development. The main research hypothesis assumes a positive link between these areas …

The restoration of continuous surface lignite mines entering the closure phase is a long-
term, complex and multidisciplinary project. During the evaluation of alternative restoration …

The aim of the article is to analyze the level of the knowledge-based economy (KBE) in the
European Union countries in terms of sustainable development. The added value of the …

Cities are considered one of the most important elements in achieving the SDGs
(Sustainable Development Goals) and are specifically addressed by SDG11, which …

Purpose: The aim of this article was to determine the financial situation of various levels of
local government units during the COVID-19 pandemic in comparison to selected periods …

This paper concerns the revitalization of post-mining heaps using a developed software tool.
Revitalizing degraded areas is crucial for sustainable development because heaps pose …

Ranking fuzzy values is often essential in fuzzy multi-criteria decision-making (FMCDM)
systems since it is established on the comparison of hazy data pairs, even though the …

Poland's achievement of sustainable development goals, including environmental goals,
requires substantial financial outlays and the necessity of incurring high expenditures by …