| http://www.w3.org/ns/prov#value | - Apparatus comprising a stator and a rotor, the stator including at least one winding, and the rotor comprising a body of soft-magnetic material with a plurality of permanent magnets in a surface disposed proximate to the stator, separated from the stator by a predetermined gap distance, such that relative motion of the rotor and stator causes magnetic flux from the magnets to interact with and ind
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