A system and method is provided which describe a self-healing bidirectional lines switch ring communication node. A lever is provided on the connecting member so that the ring that can be swiveled open. 1 to 30 wt % grafted ethylene polymer. The method includes associating the data unit with the digital image when the time interval associated with the data unit includes the specific time. In one embodiment, a subsurface power generating system includes a first power generating node, with at least one cross-flow turbine, at least one universal gear coupled to the at least one cross-flow turbine, at least one modular generator; and at least one clutch for engaging and disengaging the at least one modular generator and the at least one universal gear.