Among different environmental cues perceived by the plants, sound wave
perception is one of the most important event (Gagliano et al., 2012; Martens and Michelsen, 1981).
When he left the Navy, Cassone began a 10-year experiment with sound waves
in his home garage, tweaking the frequency, time and exposure, Soriano said.
In their paper published in Nature Scientific Reports, the researchers show how using metamaterials (synthetic materials composed of many individual, engineered cells that together produce unnatural properties) they can create any three-dimensional pattern they want using sound waves
The collaboration now includes some 1,000 astronomers from more than 50 institutions worldwide, and they're tackling a grand goal: measuring the faint imprint of cosmic sound waves
that reverberated throughout the universe during its first 380,000 years.
Dr Tom Hayward from the University of Sheffield and Professor John Cunningham from the University of Leeds have together come up with a completely new solution: passing sound waves
across the surface on which the wires are fixed.
But a pioneering device containing a microchip uses sound waves
to spot the difference between tumour cells and white blood cells.
A BLOOD test using sound waves
to detect cancer may end the need to take tissue samples.
The Cross Sound Wave
will be easy to implement and begin using with a variety of cell phone models.
It describes time-delay estimation method of the direction of arrival of the sound wave
on the microphone pair which can in cooperation with other microphone pairs provide information about audio source position.
* Ultrasonic velocity testing, which measures velocity by sending and receiving sound waves
as they travel through a section of a casting, is a proven method for checking the nodularity of ductile irons.
A normal sound wave
, such as from someone speaking, is a small pressure wave that travels through the air from its source.
TouchThruMetal uses the latest in sound wave
technology to detect the touch of the surface of just about any material.