This paper deals with the finite element analysis and experimental study concerning the influence of the broken bar and rotor dynamic eccentricity faults on the magnetic field outside a squirrel-cage induction motor. The spatial distribution of the magnetic field, the time variation of the magnetic flux density at a point outside the machine and the time variation of the electromotive force del...

Sodium ion influx and outflux were measured sinmltaneously, with two radioactive isotopes, in the cat ciliary body isolated in vitro. Measurements of membrane potential or short-circuit current were made concurrently with the isotope studies. In the non-short-circuited membrane, where the membrane electromotive force assisted sodium influx, the sodium ion current was two to three times larger t...

The space vector modulation (SVPWM) of Brushless DC motor (BLDC) is different from that of permanent magnet synchronous motor for its turn-off phase and trapezoidal back electromotive force. To overcome these problems, a SVPWM method is presented in this paper. The application of SVPWM to Brushless AC drives has been investigated extensively. This paper describes its application to BLDC drives ...

The mean electromotive force that occurs in the framework of mean–field magnetohydrodynamics is studied for cases in which magnetic field fluctuations are not only due to the action of velocity fluctuations on the mean magnetic field. The possibility of magnetic field fluctuations independent of a mean magnetic field, as they may occur as a consequence of a small–scale dynamo, is taken into acc...

Permanent magnet synchronous motors (PMSMs), with their high power density, efficiency, and thermal stability, are widely used nowadays. PMSM magnets composed of rare earth elements. However, elements subject to severe price fluctuations because limited availability the monopoly some countries. Therefore, extensive research on devoid has been conducted recently. Although a irreversible demagnet...