Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode" may dramatically improve future ultrasound images by changing the way sound waves are transmitted.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/y...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/y...