A method of gasification of biomass using a gasification island. The conductive member includes an elongate conductive supporter, an electrical resistance adjusting layer formed on a circumferential surface of the supporter, and a pair of gap maintaining members provided respectively to the two ends of the adjusting layer. In an embodiment, the present invention provides a material comprising a polymeric layer comprising ions implanted therein, wherein the polymeric layer is biocompatible. The downstream doctor may comprise a single metering device, or it may comprise an intermediate metering device followed by a final metering and leveling device. One or more bits in at least one of a plurality of registers in the Ethernet switch may be used to filter at least one ingress frame in the packetized data, based on at least one packet header attribute of the at least one ingress frame.