I got an up-close look at Roblox's new safety feature. Here's what I found.

I traveled to Roblox's headquarters to do a demo of a new safety feature it says will help protect child users.
IEEE

Initial Rotor Position Estimation of SynRM Based on Pulsating Voltage Injection Combined With Finite Position Set Algorithm

Abstract: Initial rotor position estimation is the basis of stable starting without reverse rotation; also, initial position estimation directly affects the maximum starting torque. DC pulse voltage ...