The ground stops for Dulles and BWI were lifted by 8.15pm, but remain in place for DCA (Andrew Caballero-Reynolda/AFP via Getty Images) ...

Abstract: The conventional sliding mode observer (SMO) based sensorless control methods for permanent magnet synchronous motor (PMSM) often have some key drawbacks, such as the strong coupling between ...

Flights were grounded at three major DC-area airports for several hours on Friday night because of a “strong odor” that emanated from a faulty circuit board at an air traffic control center, officials ...

Abstract: Omnidirectional mobile robots (OMRs) are widely recognized in the industry for their excellent maneuverability and flexibility, particularly when navigating complex environments. Standard ...

A ground stop issued at several airports in the Washington, D.C., region on Friday has been lifted after a chemical odor disrupted air traffic control operations. "The ground stop is over and ...

(CNN) — Passengers at three airports in the Washington, DC, area faced significant delays after a ground stop was issued Friday afternoon due to an equipment outage, according to the FAA and ...

Explore how to build a DIY electric motor using simple, readily available materials in this detailed tutorial. Watch step-by-step as we construct the rotor, wind the stator coils, assemble the motor ...