SEPTA's Market-Frankford Line remains shut down after a blown transformer forced power to be cut across a large stretch of the system.

Abstract: This article presents an ultrasonic gas meter based on a scandium-doped aluminum nitride (Sc0.2Al0.8N) piezoelectric micromachined ultrasonic transducer (PMUT) array, where the ...

Abstract: Axial stress monitoring of bolts is significant to various engineering structures and machines because it can assist their reliable and durable operation and prevent major failures and ...