To effectively simplify system structure and improve power density and efficiency, a design for a motor/generator suitable for flywheel energy storage system (FESS) is proposed. The machine is an outer-rotor and coreless-stator-type bearingless permanent magnet synchronous motor (BPMSM) with a Halbach array. Firstly, the operation principle of the outer-rotor BPMSM is described. Then, the struc...

A new design concept in the development of vertical takeoff and landing aircraft with high forward flight speed capability is that of the X-Wing. The X-Wing is a stiff, bearingless helicopter rotor system which can be stopped in flight and the blades used as two forward-swept wings and two aft-swept wings. Because of the unusual configuration in the fixed-wing mode, there is a high potential fo...

in a cross section of the patients scheduled for various operations, the plausability of lidocaine as an induction agent is studied and described. the results were dismaying suggesting, henceforth, that as an induction agent, lidocaine altogether fails to accomplish the assignment assigned to this drug.

we want to compare the efficacy and safety of vaginal versus sublingual misoprostol for cervical ripening and induction of labor. this randomized clinical trial was performed on 140 women with medical or obstetric indications for labor induction. the patients were randomly divided into two groups: vaginal and sublingual administration of misoprostol. in first group, 25 µg misoprostol was placed...

to evaluate the maternal serum dehydroepiandrosterone sulfate level as a factor associated with the outcome of labor induction. venous blood was collected from 45 women at the initiation of labor induction. pregnancies complicated by maternal corticosteriod use, anterpartum chorioamnionitis, or cesarean delivery for indications other than arrest disorders, were excluded from analysis. in 42 wom...

induction motors are the most commonly used in the traction industries and electric vehicles, due to their low primary cost, low maintenance costs, and good performance. speed identification is needed for the induction motor drives. however, using of speed sensors in the induction motor drives is associated with problems such as, extra cost, reduced reliability, added mounting space, etc.. ther...

We examine a sequential mechanism which is a simple modification of the normal form mechanism introduced by Abreu and Matsushima (1992). We show that almost any social choice function can be virtually implemented via a finite sequential game of perfect information. The solution concept assumed is backwards induction. In particular, any social choice function that is virtually implementable via ...

Forward induction is the notion that players in a game assume, even when confronted with an unexpected event, that their opponents chose rationally in the past and will choose rationally in the future. This paper modifies Govindan and Wilson’s (2009, Econometrica 77(1), 1-28) definition of forward induction and constructs an admissible, invariant forward induction equilibrium concept for genera...