Abstract: Power factor correction rectifiers/inverters with wide input-output voltage ranges are instrumental in applications with widely varying dc voltages such as photovoltaic inverters. Aiming at ...

Abstract: The high-temperature superconducting (HTS) flux pump is a charging device that can achieve contactless excitation and provide stable current compensation for superconducting magnets without ...

President Trump said the U.S. Navy would build a new ‘Trump-class’ battleship, with construction of the first ship to begin almost immediately. Photo: Alex Brandon/Associated Press President Trump ...

Ogden • When David Andora started Tru-Tone bulbs, it was only after waiting years for someone else to solve a problem he dealt with as a production designer, making props and putting together parade ...