Cognitive radio networks (CRNs) have been widely used in various applications for effective radio spectrum utilization in recent years.It is essential to fend off the growing demand for this finite natural resource for next-generation communications.In CRNs, detecting the activity of the primary user requires opportunistic spectrum sensing for effi
Grid-connected inverters have a very significant role in the integration of renewable energy resources with utility grids.However, in recent studies, it is revealed that grid-connected inverters are vulnerable to instability when the nature of the grid changes from strong to weak, which produces uncertainty and performance degradation.An increase i
The glare effect is a brightness illusion that has captured the attention of the vision community since its discovery.However, its photometrical reversal, which we refer to here as photometrical reversed glare (PRG) stimuli, remained relatively unexplored.We presented three experiments that sought to examine the perceived brightness of a target are
Objective: to study the current state of the legislative regulation of nicotine-containing products turnover and consumption; to identify the main problems in this area and to suggest possible ways to solve them.Methods: the methodological basis of the work is interdisciplinary, systematic and comparative approaches, as well as general scientific m