A handheld barcodeRFID reader includes a printed circuit board having a first side and a second side opposite the first side. In one exemplary methodological implementation, a congestion notification is received by a node in a network indicating that there is traffic congestion in a path connecting the node to a destination node. 5 nm provided at regulated particle intervals on an electroconductive carbon carrier, and a second support step of growing a metal identical to or dissimilar to the metal using the metallic fine particles as a nucleus. This action causes the portion of the cohesive block adjacent to the second conveyor to topple or break down, thereby breaking down the cohesiveness of the block and directing a portion of this toppled bulk material forward onto the second conveyor.