The Arizona Republic's photo archives highlight some of the biggest moments of 1975, including major tragedies and big sports ...

For the first half of the 20th century, one of the most important firearms in the U.S. military arsenal was the water-cooled ...

Abstract: The influence of the pulse width modulation (PWM) excitation on the DC winding induced voltage pulsation for the wound field switched flux (WFSF) machine is investigated in this paper.

Abstract: The high efficiency and mass production of electric motors for e-mobility solutions raised the hairpin technology in motor manufacturing. The reliability of these machines depends on the ...