In the medical applications of ultrasonic imaging, sound waves of high frequency are usually employed to produce in-depth cross-sectional images of internal organs. Special multi-element transducers ...

Austenitic welds and welds that contain heterogenous weld materials are increasingly used in various industries. These welds can be used to manufacture components with enhanced or custom-engineered ...

Abstract: This paper presents a novel ultrasonic phased array scanning method for the internal of gas pipelines. The proposed method achieves a complete scanning of the pipeline interior by ...

Abstract: Ultrasonic injection attacks have emerged as a critical security threat to voice-controlled devices in the Internet of Things (IoT).However, most existing attack methods are limited to ...

A two-in-one technology provides 3D images of structural defects, such as those that can develop in aircraft and power plants. A new system, developed by Tohoku University researchers in Japan in ...