I tested 8 popular plug-in models to see which ones actually make a difference. After real-world use, a few stood out for ...

Patterned elastic plate guides ultrasonic waves and traps different frequencies at separate bulk locations, enabling compact ...

Endoscopic ultrasound (EUS) plays a vital role in the development of novel treatment and diagnostic methods of gastrointestinal diseases. The ultrasonic transducer is an essential component, whose ...

While studying ultrasound propagation in biological tissues, the team used digital twins to develop a low-frequency ultrasound transducer capable of sending acoustic signals approximately four times ...

Researchers created a high-resolution 3D ultrasonic imaging system for concrete that uses broadband ultrasonic signals to automatically adapt to different types of concrete structures. WASHINGTON, Jan ...

Research conducted by a team of scientists from Kaunas University, Lithuania, revealed that low-frequency ultrasound influences blood parameters. The findings suggest that ultrasound's effect on ...

Conventional speakers work by moving air around to create sound, but tiny speakers that use ultrasonic frequencies to create pressure and generate sound opens some new doors, especially in terms of ...

Humans can observe what and where something happens around them with their hearing, as long as sound frequencies lie between 20 Hz and 20 000 Hz. Researchers have now developed a new audio technique ...

THERE is much circumstantial evidence that, in the majority of birds at least, the communicative function of call notes and song depends principally if not entirely on those frequencies which fall ...