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The paper is devoted to an approach to optimize the stator circumferential geometry of a five phase fractional-slot PM synchronous machine (FSPMSM). The proposed approach is initiated by a formulation of the armature MMF considering a sinusoidal current supply that matches the surface-mounted arrangement of the PMs. An investigation of the harmonic content of the armature MMF enables the analysis...
An experiment has been performed for measuring a nonlinear refractive index that is due to the polarizability difference Δα P between excited ( 4 T 2 ) and ground ( 4 A 2 ) states in a Cr 3+ :LiSAF crystal at λ=647nm. The latter one is responsible for a population lensing effect which has been monitored by using the eclipsing Z-scan technique. We have...
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