Abstract: This study presents a novel bearing-less electromagnetic reaction wheel (ERW) design with a Halbach array coil configuration and ferrite cores to overcome weak magnetic fields and start-up ...

At risk is the survival of any rules at all—and with them any constraints on the exercise of state power. Before countries renounced the right to war, first in the 1928 Kellogg-Briand Pact and then ...

One of President Donald Trump’s longest-serving White House aides Monday gave the clearest explanation yet of an epochal shift in America’s global role, as the administration charts a brazen course ...

0:46'It seems unjust' - Views on Maduro's seizure from Caracas. 00:00:46, play video'It seems unjust' - Views on Maduro's seizure from Caracas 1:36BBC looks into the relationship between Cuba and ...

Chelsea released just a 99-word statement announcing the shock exit of Enzo Maresca on New Year's Day. Reports had emerged on New Year's Eve that the Italian could depart the club following a ...

Abstract: Halbach magnet array has been widely used in high-speed permanent magnet synchronous machines (PMSMs) due to the possibility of creating a highly sinusoidal air gap magnetic field. However, ...