The present invention provides novel fused ring heterocycle kinase modulators and methods of using the novel fused ring heterocycle kinase modulators to treat diseases mediated by kinase activity. An apparatus may include circuitry to receive, by a network device of a wireless communication network, a message from user equipment, the message including an indication that the user equipment is an energy-harvesting device and circuitry to differentiate the energy-harvesting device from other non-energy-harvesting devices in the wireless communication network based on the indication. The guide fence provides a guide surface that extends in the longitudinal direction of the guide fence and is configured to be rendered perpendicular to a top face of the base when the guide fence is mounted to the base.