CNN

US government admits Army and air traffic controller failures in deadly midair collision near DC

The US government now admits failures by the pilots of an Army Black Hawk helicopter and a controller in the Reagan National Airport tower during the January 29 midair collision over the Potomac River ...
IEEE

Full-Speed-Range Sensorless Control of High-Speed Permanent Magnet Synchronous Motor Based on the Prediction Methodology

Abstract: In this article, a high-speed permanent magnet synchronous motor (HSPMSM) full-speed-range sensorless control strategy is proposed based on the prediction methodology. By leveraging the ...
Fox 5

Fairfax County considers lowering speed limits to 20 mph in some neighborhoods

Fairfax County is considering lowering speed limits from 25 mph to 20 mph in four districts: Dranesville, Hunter Mill, Mason, and Providence. Resident surveys are open through December 19 to gather ...
IEEE

High-Precision Speed Control using Disturbance Observer incorporated Variable Reaching Law Super-Twisting Sliding Mode Control

Abstract: Super-twisting sliding mode control (STM) offers advantages such as fast response and low demand on motor model accuracy, and is attractive for the permanent magnet synchronous motor (PMSM) ...