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The electron transmission through a system of two orthogonal quantum rings in a magnetic field with one input and two output wires is studied. It is shown that the transmission to only one of the two output leads can be governed by a change in the construction orientation in respect to the field. A model of nonplane quantum graph embedded in three‐dimensional space is used.
We consider an axisymmetric Stokes flow in an infinite right circular cone, which has a source of momentum (a Stokeslet) on its axis. It produces an infinite sequence of eddies in the conical flow region. A boundary problem for a stream function is solved. The picture of the streamlines is obtained. We investigate an eddy structure of the flow. The results can be used for constructing nanoreactors...
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