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Transmission radii and packet size have great impacts on the efficiency of network-wide flooding, which is a crucial operation in the design of Wireless Sensor Networks (WSNs) and is frequently used in many applications and network protocols in WSNs. Inappropriate settings of these parameters may cause flooding operations consume excessive energy and network bandwidth and degrade the network performance...
Along with the development of computer technology and network technology, E-learning way of learning in petroleum college teaching is applied widely. With using of internet public information resources by both teachers and students, the combination of multimedia teaching techniques and network technology may also play advantage both traditional classroom teaching methods and students' autonomous learning...
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