It’s pretty easy to take a balloon, fill it up with helium, and send it up in to the upper atmosphere. It’s much harder to keep track of it and recover it when it falls back to Earth. If you’re trying ...
In this paper, the pressure matching (PM) method to sound zoning is considered in an ad-hoc wireless acoustic sensor and actuator network (WASAN) consisting of multiple audio-devices with loudspeakers ...
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