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Generally, more than 120 ultrasonic sensors are necessary in a non-destructive testing (NDT) system for wide and thick steel plates. With the increase of the numbers of sensors, the system becomes more complex. It means that much higher automatization level is required in the parameters setting and much higher efficiency is demanded on data transmission in(More)
As one of data-gathering applications in information technologies, wireless sensor network (WSN) has attracted more and more people's attention. A key challenge is achieving energy consumption distribution of nodes for WSN with any scale in any general regions to the effect that node deployment density can be made to prolong system's lifetime. In this(More)
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