Improving the ductility and toughness of nano-TiC/AZ61 composite by optimizing bimodal grain microstructure via extrusion speed

In this study, the nano-TiC/AZ61 composites with different heterogeneous bimodal grain (HBG) structures and uniform structure are obtained by regulating the extrusion speed.The effect of HBG structure on the mechanical properties of the composites is investigated.The increasing ductility and toughening mechanism of HBG magnesium matrix composites a

read more

An Improved Backstepping-Based Controller for Three-Dimensional Trajectory Tracking of a Midwater Trawl System

An improved backstepping control method for three-dimensional trajectory tracking of a midwater trawl system is investigated.A new mathematical model of the trawl system while considering the horizontal expansion effect of two otter boards is presented based on the Newton Euler method.Subsequently, an active path tracking strategy of the trawl syst

read more


The Thousand Faces of Invasive Group A Streptococcal Infections: Update on Epidemiology, Symptoms, and Therapy

Invasive infections caused by Streptococcus pyogfenes (iGAS), commonly known as Maxi Crate Group A Streptococcus, represent a significant public health concern due to their potential for rapid progression and life-threatening complications.Epidemiologically, invasive GAS infections exhibit a diverse global distribution, affecting individuals of all

read more