Sentences with phrase «acoustic pressure wave»

Not exact matches

The size of the acoustic scale at 13.7996 billion years ago has been exquisitely determined from observations of the cosmic microwave background from the light emitted when the pressure waves became frozen.

Inside a combustor, instabilities in the flame can cause deafening acoustic pulsations — essentially noise - induced pressure waves.

When opposing devices send out surface acoustic waves, they set up a grid of nodes where the sound pressure cancels out.

For instance, they broadcast acoustic signals, creating pressure waves at the seafloor.

Recently developed, in - situ techniques for direct volume determination, acoustic wave velocity measurements, and x-ray diffraction at HPCAT, along with molecular dynamics simulations, were employed to explore the nature of the unusual and pressure - tunable, compression and elastic properties.

They say: «It is shown that the rain formation leads to a change of the surface pressure after a short period of acoustic wave activity.