Abstract: In this article, the speed regulation control problem for permanent magnet synchronous motor (PMSM) under the single-loop control structure is investigated. Specifically, certain issues, ...

Aircraft Rescue and Firefighting, or ARFF, is a function that remains remarkably invisible yet essential within the industry.

Abstract: The upcoming exploration activities in the lunar south pole require high-resolution mapping products to support landing site selection and navigation. The special terrain and illumination ...

Economy cabins are packed with small advantages that most travelers ignore, even though they can make a cramped flight feel ...

"I think by opening up air traffic control, we get more entrepreneurs in and more innovation," said Chris Edwards.

China has quietly moved a new piece onto the global military chessboard, sending its CH-7 stealthy flying-wing drone into the ...