Complex dynamics and Bogdanov-Takens bifurcations in a retarded van der Pol-Duffing oscillator with positional delayed feedback

In this article, we will investigate a retarded van der Pol-Duffing oscillator with multiple delays.At first, we will find conditions for which Bogdanov-Takens (B-T) bifurcation occurs around the trivial equilibrium of the proposed system.The Vehicle Dashboard Accessories center manifold theory has been used to extract second order normal form of t

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The geology of the Vakkerlien nickel prospect, Kvikne, Norway

The Vakkerlien nickel prospect is a small sulfide mineralized zone centrally located within a metagabbro body.The body, and a second barren metagabbro, are elongated parallel to the regional lineation.Both are compositionally zoned across the bodies from ultramafic to metagabbro.The composition of the bodies suggests that they may Dryer Fan Kit rep

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