This click here paper presents a Lyapunov based controller for a quadrotor Unmanned Aerial Vehicle (UAV) to address the desired trajectory tracking problem.The controller is designed based on the dynamical model of the quadrotor UAV.The quadrotor UAV system can be divided into two subsystems e.g.translational components as the positional subsystem

BACKGROUND: Marital dissolution is ubiquitous in western societies.It poses major scientific and sociological problems both in theoretical and therapeutic terms.Scholars and therapists agree on the existence of a sort of second law of thermodynamics for sentimental relationships.Effort is required to sustain them.Love is not enough.METHODOLOGY/PRIN

The vascular plant Arabidopsis thaliana is a central genetic model and universal reference organism in plant and crop science.The successful integration of different fields of research in the study of A.thaliana has made a large contribution to our molecular understanding of key concepts in biology.The availability and active development of experim

Abstract: The authors of the 19th century had demonstrated the viviparity of the species Rhizophora mangle L.with the formation of propagules in the form of spears devoid a radicle, adapted self-planting in the soil of the mangrove or to leave floating in vertical during the high tide.With low tide the propagules self-planting or remain prostrate o

In many species, mating with multiple males confers benefits to females, but these benefits may be offset read more by the direct and indirect costs associated with elevated mating frequency.Although mating frequency (number of mating events) is often positively associated with the degree of multiple mating (actual number of males mated), most stud