Example embodiments are directed to various aspects of processing received signals for determining a location of a source of the signals. A source or ingress network device may implement the techniques to connect multiple L2 interfaces to a P2MP LSP within an MPLS network via a P2MP Pseudo-Wire mechanism that emulates delivery of L2 data units over a packet switched network, such as the MPLS network. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device. The extracted hydrocarbon-containing organic matter is separated from a residual material not extracted. An upper end of a push member is pivotably connected to the switch member and a lower end of the push member is in contact with the bi-metallic plate. The present invention can be used for agent scheduling in a call center environment.