A 2D analytical method for magnetic vector potential calculation in inner rotor surface mounted and surface inset permanent magnet machines considering slotting effects, magnetization orientation and winding layout has been proposed in this paper. The analytical method is based on the resolution of Laplace and Poisson equations as well as Maxwell equation in quasi- Cartesian coordinate by using...

On the screen was a collection of boxes, lines, and squiggles. The title of the slide was “Kuhlthau’s ISP”. While the name “Kuhlthau” seemed to ring a bell, her depiction of a process of information-seeking didn’t make much of an impression on me. While valuable in the context of that particular class—LIS 503: Information sources and services—Kuhlthau’s model quickly lost significance as I left...

Given two metric spaces S1, S2 and a measurable function f : S1 → S2, sup­ pose S1 is equipped with some probability measure P. This induces a proba­ bility measure on S2 which is denoted by Pf−1 and is defined by Pf−1(A) = P(f−1(A)) for every measurable set A ⊂ S2. Then for any random variable X : S2 → R, its expectation EPf−1 [X] is equal to EP[X(f)]. (Convince your­ self that this is the cas...

A recent paper by Caussinus, McKenzie, Th erien, and Vollmer [CMTV96] shows that there are problems in the counting hierarchy that require superpolynomial-size uniform TC0 circuits. The proof in [CMTV96] uses \leaf languages" as a tool in obtaining their separations, and their proof does not immediately yield larger lower bounds for the complexity of these problems, and it also does not yield a...

Electrical motors drive a variety of loads in today’s world. Almost every industrial process relies on some kind of electrical motors and generators. There exist billions electric motors used in different applications all over the world. Majority of them are small fractional HP motors use in household appliances. However, they used about 5% of the electricity used by the motors. Three phase mot...

ver the past 40 years, permanent pacemakers have become standard treatment for patients with symptomatic sinus node disease and documented, or suspected, high grade atrioventricular (AV) block. Permanent pacemakers were first developed for the treatment of heart block, often in young patients following surgical repair of congenital heart defects. These early pacemakers were primitive devices, a...