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Vertical few-layer graphene (FLG) is an excellent field emission material, with an atomically thin edge and a 2-D heat dissipation area. A pulse voltage driving operation was used to achieve a high field emission current. The pulsewidth and duty ratio affected the field emission characteristics of the FLG due to the current heating effect. The optimal pulse parameters were obtained. A maximum current...
Ocean buoys is an important tool of Marine Environmental Monitoring, The design of drifting buoy plays a significant role in field of shallow sea environmental monitoring. In order to solve the problem that the shallow marine physical parameters acquisition costs are high and the accuracy of data is low, this paper designed a mini-drifting buoy in shallow sea based on AT89S51 single-chip microcomputer,...
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