Ultrasonic research involves the study of sound waves with frequencies above the range of human hearing (typically above 20,000 Hz). Ultrasonic waves have various applications in fields such as medical imaging, industrial testing, cleaning processes, and more. Researchers in this area may explore the properties and behaviors of ultrasonic waves, develop new technologies and techniques for generating and detecting ultrasonic waves, and investigate how ultrasonics can be used to solve practical problems in different industries. Overall, ultrasonic research aims to harness the unique properties of high-frequency sound waves for a wide range of scientific and technological advancements.