Abstract: Due to the ability of terahertz (THz) waves to penetrate nonpolar opaque optical materials, Doppler interferometric velocimeters using THz waves can measure the velocity of a target inside ...

In a makeshift demonstration kitchen in Concord, California, cooking oil splatters in and around a frying pan, which catches ...

NASA wants to make supersonic travel quieter. On Thursday the agency released new footage of its X-59 jet, a ...

High-frequency ultrasound platform for preclinical imaging, supporting real-time visualization of small animal anatomy and ...

Infrasound waves are usually too low for the human ear to actually hear, but they can still have a negative effect on ...

A new device for creating individual "phonons" — vibrational quanta — could give rise to the acoustic equivalent of lasers.

Doppler ultrasound works by measuring frequency shifts in sound waves as they bounce off moving red blood cells, translating them into waveforms that reflect blood flow patterns. In obstetrics, this ...

Doppler ultrasound blends physics and medical imaging to reveal the movement of blood through vessels and the heart. From diagnosing clots to assessing heart valve function, it’s a non-invasive tool ...

Acoustic metamaterials are a fast-evolving family of materials which manipulate sound waves in ever more advanced ways. Now, a team led by Changqing Xu at Nanjing Normal University in China has ...

Abstract: This article presents a novel millimeter-wave (mmWave) frequency-modulated continuous-wave (FMCW) radar-in-display (RiD) concept for target characterization and micro-Doppler sensing. The ...

In physics, a mechanical kink marks the point of transition between different internal states of a material. Researchers have now succeeded in creating a model in which they were able to move the kink ...