The materials are expected to amplify the source levels for active sonars and heightened sensitivity for passive sonars.

Found in everything from kitchen appliances to sustainable energy infrastructure, stainless steels are used extensively due ...

Abstract: This article focused on investigating the resonance frequency of piezoelectric transducers (PZTs) and the impact of different compensation methods on the performance of ultrasonic wireless .

Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, Guangzhou 510641, China ...

Not so, if you use a pair of specialised ultrasonic transducer arrays to move the air instead! (Video, embedded below) Three banks of thrusters provide a 180 degree steerable net force Details are ...