This is due to the layer of air next to the ground being stationary. A wind gradient results in sound waves propagating upwind being 'bent' upwards and those propagating downwind being 'bent' ...

DARPA's AtmoSense program uses Earth's atmosphere as a global sensor to detect disturbances like underground explosions and ...

A group of international researchers have developed a way to use sound to generate different types of wave patterns on the ...

DARPA is using Earth’s atmosphere as a powerful sensor, allowing the detection of events like rocket reentries and illicit ...

Pressure waves propagating through bubble-containing liquids in tubes experience considerable attenuation. Researchers at the ...

Particles subjected to a P wave move in the same direction that the wave is moves in; it is the direction that the energy is traveling in, sometimes called the “direction of wave propagation.” ...

During his time at the WaveLab, Curtis explored novel acoustic wave phenomena. For example, he examined acoustic non-Hermitian systems and how they could be realized through feedback mechanisms or ...

THE propagation of finite waves in fluids or solids generally presents considerable difficulty, both theoretically and experimentally. In rubber-like materials, however, the experimental ...

In experiments predicting medium-range weather forecasting and shallow water wave propagation, Latent-EnSF demonstrated higher accuracy, faster convergence, and greater efficiency than existing ...

Professor Ruzzene’s group investigates both active and passive strategies through the application of smart materials, and the determination of structural configurations with inherent vibration ...