Abstract: Single-stage boost-LLC ac–dc converters are popularly utilized as the front-end stage of multichannel LED street-lighting drivers. Pulse frequency modulation (PFM) strategy with a duty cycle ...

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

The event was hosted by Chabad, the same organization that held the Hanukkah event in Sydney. Rabbi Levi Shemtov led the lighting, stressing the importance of moving forward with pride and light as a ...

Abstract: Emerging smart grid technologies aim to renovate traditional power grid by integrating intelligent devices and their communications for monitoring and automation of the power grid to enable ...

President Donald Trump and first lady Melania Trump lit the National Christmas Tree on Thursday night at the White House. The ceremony included performances by Alana Springsteen, The Beach Boys and ...