Abstract: The junction temperature is a significant indicator for evaluating the reliability of insulated gate bipolar transistors (IGBTs). In this article, in order to realize noninvasive and simple ...

Unlike full-fledged e-bikes, Sdkeboost takes a more accessible approach. It weighs just 3.8 kg and delivers 700 watts of rear-wheel power by mounting directly onto the seat stay bridge. That makes it ...

ROME — The US Navy is cancelling its Constellation frigate program following months of cost overruns and delays but plans to keep two vessels that are already being built in Wisconsin. “We’re ...

The Navy is walking away from the Constellation-class frigate program to focus on new classes of warships the service can build faster, Secretary of the Navy John Phelan announced Tuesday on social ...

Ryan Helsley said he was tipping his pitches last season, and the numbers bear that out. But stats also show his stuff remains dominant when he's less predictable. Joe Sargent / Getty Images If there ...