How to clean fuel injectors yourself, and check if they really need it

To save time and money, you might want to learn how to clean fuel injectors without needing to rely on professionals. But do ...
IEEE

Switching Frequency Signal-Injection Sensorless Control in Dual Three-Phase PMSM Robust to Nonideal Characteristics of Inverter System

Abstract: This article mainly describes a signal-injection sensorless control (SISC) method whose injection frequency is the same as the inverter's switching frequency. It has been known that the ...
NBC News

FDA approves label change for Depo-Provera, adding brain tumor warning

The Food and Drug Administration approved on Friday a label change for Pfizer's birth control shot Depo-Provera that warns patients of the risk of meningioma, a tumor in the lining of the brain.
IEEE

MTPA Control for DC-Biased Hybrid Excitation Machine Using MTPA Control Law and Virtual Signal Injection

Abstract: This article proposes an overall maximum torque per ampere (MTPA) control for dc-biased hybrid excitation machine (dc-biased HEM) using MTPA control law and virtual signal injection. The ...