A fuel flow dividing ecology valve conveys fuel from a fuel source to at least a secondary gas turbine engine intake manifold during engine operation and withdraws fuel therefrom upon cessation of engine operation. The interaction is facilitated in such a manner as to provide an appropriate latency for the emulated communication bus. A multi-layered structure can include at least a first single-ion conductive material layer, and at least a first polymeric layer positioned between the anode and the single-ion conductive material. The PCB is connected to the circuit films, and disposed at the circuit disposing part. The external dimensions of the cover in the region of its larger cross section approximate the external dimensions of the adjacent end of the buckle casing and in the external dimensions of the cover in the region of its smaller cross section approximate to the external dimensions of the pulling element. There is determined a first expiry time for a period during which the re-establishment of lost radio bearers used to provide services of a first category, like real time services, is allowable.