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Graphene has been intensively studied due to their outstanding electrical, mechanical and optical properties, such as high electrical conductivity, mechanical flexibility, and optical transmittance. The key challenges to make commercially viable graphene-based electronic devices are enabling large-area production of high quality graphene and subsequently patterning graphene into desirable structures...
With a view to detecting the series arcs in AFCI and AFDD used to prevent electrical fires, this paper explores a method of processing the low-frequency signals of electric currents, a method of detecting the arc signals using FM IF system's RSSI from certain frequency band signals in high-frequency noise signals arising when arcs occur, and an algorithm for processing the arc signals.
This study attempted to design the existing SPM type motor into a flux concentration type motor for performance improved design. The results found at least the equivalent or higher motor performance and the reduction of weight and cost.
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