High altitude long endurance(HALE) solar powered unmanned aerial vehicle is of the design characteristics of low Renolds(Re) number which makes a great challenge to the propeller aerodynamic design.Based on the general layout of a Mast Cover UAV, a solar powered propeller is designed.Multi variables optimization method is used to design the blade e
The author argues through Kids an analysis of maritime practice, legal theory and statutory enactments that the pilot is not only an expert adviser but that he takes charge of and conducts a vessel.He distinguishes between conducting and commanding and points out that by recognizing that the pilot conducts a ship no charge in the nowadays widely ac
Balanced fear supports human rational decision-making and useful behavioral Tanks responses.In contrast, overwhelming, persistent, and unbalanced fear can paralyze the individual and result in heightened anxiety, lack of cognitive flexibility, fear-based public compliance and serious mental health issues.Psychobiotics research has established that
Abstract Mast Cover The spectrum of diseases caused by Streptococcus pyogenes (Strep A) ranges from superficial to serious life-threatening invasive infections.We conducted a scoping review of published articles between 1980 and 2021 to synthesize evidence of state transitions across the Strep A disease spectrum.We identified 175 articles reporting