Two MH-139A Grey Wolf helicopters assigned to the 40th Helicopter Squadron conducted their first operational Minuteman III ...

What is the best iPhone ever and how do the rest of the iPhone generations rank? We check out everything from the original to ...

Your engine is supposed to vibrate, just a little. But when the shaking gets harder to ignore, there’s probably something ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

Abstract: The conventional speed harmonic attenuation control based on extended harmonic state observer (EHSO) is not applicable to interior permanent magnet synchronous machines (IPMSM). In order to ...

Abstract: Switching-state phase shift (SSPS) method is widely used in motor drive system with single dc-link current sensor (SDLCS) because of its advantages such as no additional hardware design ...