Abstract: The modeling of spectral characteristics of light-emitting diodes (LED) has been addressed in various studies. We extend the current state of knowledge by modeling the spectral ...

Red light is a popular treatment for skin concerns, especially signs of aging like wrinkles, age spots, and sagging skin. People are also using it to treat hair loss. Whether you want to treat your ...

Abstract: This paper investigates the use of switched capacitor converters to implement LED drivers with PWM dimming functionality. A voltage doubler switched capacitor converter is selected as an ...

A medieval tapestry conveying an 11th-century tale of Norman conquest may have surprising origins, according to a new interpretation of the enigmatic ancient work of art by a University of Bristol ...