A three-dimensional finite element thermal model for the stackable supercapacitor is built and tested at 3 A constant current in charge–discharge process, and then we analyze the inner temperature distribution field. It can be concluded that the maximum temperature appears in core. The...

Nitrogen-doped graphene is prepared by a solid microwave method with EDA (ethylenediamine) as the nitrogen source. The experimental results reveal that nitrogen atoms from the grafted EDA molecules on the surface of graphene are successfully doped into the lattices. The NGS (nitrogen-doped...

A thermoacoustic compressor is capable of converting an alternating gas flow to a direct one with a large pumping rate on the basis of the pressure oscillation nature of thermoacoustic engines and the flow rectification effect of check valves. Theoretical calculations are first carried out to...