This paper investigates the role of topological methods in the analysis of canardtype periodic and chaotic trajectories. In Sections 1 – 5 we apply topological degree [1, 2] to the analysis of multi-dimensional canards. This part of the paper was written mainly by the first and the last authors. Sections 6 – 7 are devoted to an application of a special corollary of the Poincaré–Bendixson theore...

The mule duck, an interspecific hybrid obtained by crossing Common duck (Anas Platyrhynchos) females with Muscovy (Cairina moschata) drakes, is widely used for fatty liver production. The purpose of the present study is to detect and map single and pleitropic QTL segregating in the Common duck species, having an influence on the expression of traits in their overfed mule ducks offspring. To thi...

Abstract To reveal the flow mechanism of Magnus effect spinning missile, field under supersonic conditions was numerically simulated based on unsteady Reynolds-time-averaged Navier–Stokes equation, and implicit dual-time stepping method sliding mesh were used. Validation performed to ensure reliability numerical methods. The results simulation wind-tunnel experimental data coincided quite well....