Abstract: High-voltage direct current (HVdc) circuit breakers based on power electronic technology usually require a large number of insulated-gate bipolar transistors (IGBTs) to achieve ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

As the story goes, the rock band AC/DC took its name from a label on an old sewing machine in the Young brothers’ home. It must have meant that the machine could run on either alternating-current or ...

FAYETTEVILLE -- Thirty-six years of coming to the Washington County Courthouse almost every day is finally enough for Circuit Judge John Threet. "I've been coming to the courthouse since 1989," Threet ...

In alternating current (AC), the voltage and direction of the electric current periodically change direction. Many sources of electricity, such as electromechanical generators, produce AC current with ...

In the simplest of terms, an AC generator supplies power directly to a 120-volt circuit to run AC accessories throughout a boat, as well as charge the boat’s batteries (through an AC-to-­DC charger).

A newly identified part of a brain circuit mixes sensory information, memories, and emotions to tell whether things are familiar or new, and important or just "background noise." Led by researchers ...

Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China Hunan Key Laboratory for Super-microstructure and Ultrafast Process, ...

Graphic Arts Advisors (GAA), a leading M&A advisory and consulting firm serving the printing, mailing, packaging, and graphic communications industries, is pleased to announce the recent acquisition ...