Abstract: High-performance motor drives rely on closed-loop controls that typically obtain rotor position from a physical encoder or a rotor position estimator. However, it is well established that ...

Astronomers have observed enormous filaments of galaxies tied together with dark matter — the stuff scientists believe makes up 85 percent of the total mass of the universe — stretching across ...

TVs are the focal point of many living rooms, but let's be honest — when they're off, they're basically just big black rectangles, which can be an eyesore. That's where Samsung's Frame TVs come in.

Firms all over the world use Bloomberg’s robust Reference Data offering to feed their operational workflows and inform decision making across the front, middle and back office. Bloomberg’s Reference ...

Thanks to its slighter profile, a metal bed frame can feel airier in a space than one made of wood, and they have the benefit of greater strength and durability. (It takes less metal than wood to make ...

Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

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Abstract: The phase-locked loop (PLL) technology is the key technology for phase synchronization with the grid voltage when the converter is connected to the grid. Due to unbalanced grid conditions, ...

Tornadoes are vertical funnels of rapidly spinning air. Their winds may top 250 miles an hour and can clear a pathway a mile wide and 50 miles long. Twisters are born in thunderstorms and are often ...