Abstract A new Neotropical species of Oxysarcodexia Townsend (Diptera, Sarcophagidae) from Atlantic Forest of southeastern Brazil, Oxysarcodexia digitata sp.nov., is described and illustrated based on male and female specimens.This new species here resembles O.fraterna Lopes, O.nitida Soares & Mello-Patiu, O.notata Soares & Mello-Patiu, O.vittata (
It is presented through numerical analysis that accelerated motions of a two-dimensional fish-like royal nomadic 5413 rug foil by fluid forces can be modeled from impulsive starts to terminal states.Time histories of drag coefficient and foil speed depend on a frequency and motion of a foil and amplitude of its caudal fin.Three models that take thr
ObjectivesUnder complex environmental conditions, unmanned surface vehicles (USVs) may deviate from the target course.In order to improve the anti-jamming ability and actual navigation stability, and achieve accurate track control, an improved USV track control method is proposed.MethodsAccording to the influence on navigation signals bar drain boa