A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The gate electrode may control a magnetization state of the channel in order to selectively transmit the electrons injected from the source to the channel. Open channels behind the thermally conductive surface carry fluid in contact with the top thermally conductive surface for removing heat from the photovoltaic panel. A distribution of the event processing in the event relationship network is recommended based on the strength of the relationship. The supercharger operates as an expander to cool the air stream and reduce the air pressure and temperature to a desired level. The spring provides a compressive force to maintain the cam pressed against the follower.