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I like watching football precio de medicamento levodopa y carbidopa The feasibility of a passive mote hinges on it being able to intercept sufficient power from the ultrasonic hub, and also on the ability to sense sufficient voltage at the gate of its FET. In designing optimal ultrasonic systems for the brain there are many trade-offs, and some starting point most be chosen to move forward. The “Raleigh distance,” is the point where transition to the far field occurs. Here the pressure field converges to a natural focus and a mote placed at this distance can maximize received power. Assuming 10MHz resonant frequency, this distance would be around 2mm, an ideal span for motes placed within the cortex to intercept radiation from overlying hubs. An optimal external dimension for these hubs would be on the order of 1 millimeter.

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