Biocompatible electrodes with smaller geometric area improve the selectivity of the neural recording and stimulation applications. The blanket multiplies a fuel of the fusion reactor using lithium nanofluid, and applies the lithium nanofluid to a cooling process of cooling the blanket. The path selecting section determines whether or not transfer of the received stream of packets to the transfer destination route is in an inhibition state, and selects another transfer destination route when the transfer of the packet to the transfer destination route is in the inhibition state.