An isolation plating medium for use in processes for the presumptive identification of Escherichia coli 0157:H7 from a sample that also contains other strains of Escherichia coli. The system and method operate with one or more active thermal sensors embedded in the die of an integrated circuit to provide highly accurate die temperature measurements. A holder frame supports the first and second holder cores in a rotatable manner. This approach reduces the space requirement of the DMA module, and the DMA module may be employed to control a large number of DMA processes that may mutually interrupt each other by providing a plurality of memory locations to store specifications of the DMA blocks. Formed in the guide plate is a flow dividing concave portion which causes a part of refrigerant flowing toward the motor cooling passageway to be distributed in a circumferential direction and toward an internal end of a discharge pipe located in the clearance space. The network device is configured to forward the multi-destination packet to one or more of the servers based on the bit value in the multi-destination packet.