At low ambient light levels herding behavior in flatfish breaks down, as fish initially respond to ground-gear by rising off the bottom, which removes them from the ground-gear's zone of influence.
Geophone, trade name for an acoustic detector that responds to ground vibrations generated by seismic waves.
Although he was not on duty on Sept. 11, 2001, he responded to ground zero, like many others, Mr. Long said.
This robot has sensors that let it feel and respond to the ground and its own body.
As a result, flatfish typically respond to trawl ground-gear at shorter distances, remain closer to the seafloor during herding and herd in the net mouth for a shorter time, prior to net entry, than roundfish.
She was there to listen and to respond, to find common ground and offer the help of her office.
The agent who died, Nicholas Ivie, 30, of Provo, Utah, was shot as he and two other agents responded to a ground sensor that went off near the border Tuesday around 1 50 a.m.
The long measurement arm, formed between both vacuum chambers with a 1500-m baseline, responds to the ground motion.
In the event of a major earthquake, objects may slide/rock and this dynamic action affects the way in which the supporting structure responds to the ground motion.
But most of them were called up to respond at ground zero in the days and weeks afterward, and many say they see Iraq as part of that broader antiterrorist mission.
