An exemplary embodiment of a gasket is configured for providing electromagnetic interference shielding andor grounding of one or more electrical components on a substrate disposed within a passageway of a member having a generally circular cross-section. In order to remove the exhaust gases from the upstream connected exhaust gas cleaning system, at least one part of the chimney tube cross section is exposed by lowering the liquid level under the edge thereof. The directional coupler also includes detector circuitry wherein the filter inductor is magnetically coupled to a detector inductor in the detector circuitry such that current passing through the filter inductor generates a detector current through the detector inductor. The band-pass filter is configured to extract sound signals in a predetermined audible frequency range and to output a corresponding filtered signal. Then, the first set of dictionary keys is sent with a join condition attribute to a second server.