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Using the method of separate variables, the three-dimensional magnet field solution expressed in Fourier's expansion for permanent magnet (PM) machines with finite axial magnet length is presented in this paper. From the analytic results obtained, much useful and interesting design information for PM machines in three dimensions may be quantitatively(More)
An analytically extended PM model with fictitious PM arrays is presented in the paper for solving the field problem of PM electric machines in three dimensions. To consider the effect of finite core length, each PM array is assumed to face a fictitious core array together with the actual armature core. By using the analytic approach and the PM model(More)
OBJECTIVE To analyze the methods of offside reconstruction in total hip arthroplasty (THA) for severe osteoarthritis. METHODS Between July 2009 and June 2011, 18 cases (18 hips) of severe osteoarthritis of the hip were treated by THA, including 14 males and 4 females with a mean age of 55.4 years (range; 47-72 years). The disease duration was 11-74 months(More)
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