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 ...

Abstract: Advancements in ultrasonic imaging sensors (UISs), such as improvements in cost-effectiveness, low power consumption, and suitability for challenging environments, have been useful for drone ...

College of Materials Science and Engineering, Sichuan University, 610064 Chengdu, China Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 ...

(AP) - Authorities are considering whether to charge an Indiana homeowner who they say shot and killed a woman working as a house cleaner after she mistakenly went to the wrong address. Police ...