That means inside every LED bulb are tiny circuit components -- and their soldered contact points -- which are far more vulnerable than the diode itself. The Lighting Research Center of the Rensselaer ...

Try an experiment. Next time you are in a room with someone, ask them to name everything in the room. Only certain kinds of people will say “air” or “light.” For most ...

Abstract: A recently proposed low-profile frequency-reconfigurable filtering patch antenna is further optimized to achieve a wider frequency tuning range. The design realizes the filtering ...