Abstract: Methods and systems disclosed herein are used to track packages sent via an intra-organizational mail system, even when such mail system includes shipping some packages in bulk to remote organizational locations via an external carrier. A package administration system generates package identifiers to be associated with packages. In the event that such packages are aggregated with other packages destined for a common location, the package identifiers are associated with a tracking identifier identifying the consolidated master package containing a plurality of such packages. The methods and systems also offer the capability to sort packages based on common delivery locations.

Abstract: A fuel cell stack (10) comprises a plurality of modules (12) and each module (12) comprises an elongate hollow member (14). Each module (12) has at least one passage (31) extending longitudinally through the hollow member (14) for the flow of a reactant. Each hollow member (14) has a first flat surface (16) and a second flat surface (18) arranged parallel to the first flat surface (16). At least one of the modules (12) includes a plurality of fuel cells (20). The fuel cells (20) are arranged on at least one of the first and second flat surfaces (16,18) of the at least one module (12). A first end (30) and a first side (32) of each module (12) has a first integral feature (34) to provide a spacer and a connection with an adjacent module (12) and a second end (38) and a second side (40) of each module (12) has a second integral feature (42) to provide a spacer and a connection with another adjacent module (12).

Abstract: A solid oxide fuel cell module (30) comprises a plurality of fuel cells (36). Each fuel cell (36) comprises a first electrode (40), an electrolyte (42) and a second electrode (44). A plurality of interconnectors (38) are arranged to electrically connect the fuel cells (36) in electrical series. Each interconnector (38) electrically connects a first electrode (40) of one fuel cell (36) to a second electrode (44) of an adjacent fuel cell (36). The first electrode (40) comprises a first layer (40A) on the electrolyte (42 to optimise the electrochemical activity at the electrolyte (42) and a second layer (40B) on the first layer (40A) to provide electronic conduction perpendicular to the layers (40, 42, 44) of the fuel cell (36). The second layer (40B) is arranged such that electronic conduction perpendicular to the layers (40, 42, 44)) of the fuel cell (36) is different at different positions in the second layer (40B).

Abstract: A solid oxide fuel cell module (30) comprises a hollow support member (32) and a plurality of fuel cells (36) spaced apart longitudinally on one surface (34) of the hollow support member (32). A plurality of interconnectors (38) electrically connect the fuel cells (36) in electrical series. Each fuel cell (36) comprises a first electrode (40), an electrolyte (42) and a second electrode (44). The first electrodes (40) of each of the fuel cells (36) are electrically connected to the second electrode (44) of adjacent fuel cells (36) by a plurality of interconnectors (38) spaced apart laterally with respect to the hollow support member (32). A laterally extending end (46) of the first electrode (40) of the said adjacent fuel cell (36) has a plurality of recesses (48) spaced apart laterally with respect to the hollow support member (32).

Abstract: A portable collapsible garbage can has a central vertical axis and inner and outer sides and concentrically adjacently spaced substantially vertically oriented annular flat wall panels. Each wall panel has upper and lower distal ends and there is an innermost and outermost wall panel. The wall panels are concentrically oriented about the vertical axis and can be vertically telescopically raised and lowered between an extended and a retracted position. In the extended position the panels partially overlap along the vertical axis and define a garbage compartment having an open top and bottom. In the retracted position the panels are concentrically nested adjacent each other and overlapped along the vertical axis.