708 search results - page 17 / 142 » Underground structure monitoring with wireless sensor networ... |
BSN
2009
IEEE
15 years 4 months ago
2009
IEEE
—We have developed a wearable, battery-free tag that monitors heart sounds. The tag powers up by harvesting ambient RF energy, and contains a low-power integrated circuit, an ant...
IJWIN
2006
14 years 9 months ago
2006
Abstract-- We consider a wireless sensor network consisting of a set of sensors deployed randomly. A point in the monitored area is covered if it is within the sensing range of a s...
108
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WSNA
2003
ACM
15 years 2 months ago
2003
ACM
One fundamental issue in sensor networks is the coverage problem, which reflects how well a sensor network is monitored or tracked by sensors. In this paper, we formulate this pr...
113
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WIOPT
2006
IEEE
15 years 3 months ago
2006
IEEE
Abstract— An important application of wireless sensor networks is to perform the monitoring missions, for example, to monitor some targets of interests at all times. Sensors are ...
100
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SAC
2010
ACM
15 years 4 months ago
2010
ACM
Current methods of estimating air quality involve assigning a single value called the Air Quality Index (AQI) to a large land area for a 24-hour period based on a very few, sparse...