In this paper, a new robust suboptimal controller is designed to stabilize a class of uncertain nonlinear time-varying systems with slowly varying parameters.In the design procedure of the proposed controller, first a suboptimal control law is designed for the nominal system based on considering a given cost function and an appropriate Slowly Varyi
We report laboratory determinations of the shear resistance to sliding melting ice with entrained particles over a hard, impermeable surface.With higher particle concentrations and larger particle sizes, Coulomb friction at particle-bed contacts dominates and the shear stress increases linearly with normal load.We term this the <i>sandy</i
In most animal species, the vomeronasal organ ensures the individual recognition of conspecifics, a prerequisite for a successful reproduction.The vomeronasal organ expresses several receptors for pheromone detection.Mouse vomeronasal type-2 receptors (V2Rs) are restricted to the basal neurons of this organ and organized in four families.Family-A,
Chitinases are enzymes that catalyze the hydrolysis of chitin and play a significant biophysiological role in fungal growth, development, and pathogenesis.Valsa mali is a necrotrophic fungus that is a primary contributor to apple Valsa canker.Our study focused on the identification of chitinase gene families from V.mali and the analysis of their ex