Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...

MIAMI — For Erik Spoelstra, it almost always has been about living in the moment, be it a mundane game against a shorthanded opponent on the eve of Thanksgiving or a devastating loss to end a playoff ...

Abstract: IN THE CONTROL and protective circuits of complex electrical systems it is frequently necessary to make intricate interconnections of relay contacts and switches. Examples of these circuits ...

Abstract: The Internet of Things (IoT) has become more prevalent in recent years and is an integral part of everyday life. Thus, the need for ultralow-power sensors and processing units has ...