A sealed exhaust chemical oxygen-iodine laser system is described, wherein the sealed exhaust system includes an adsorption bed for adsorbing sorbable material contained in the laser exhaust gas, and a temperature control assembly for controlling the temperature of the incoming laser exhaust gas and the adsorbent media of the adsorption bed. A method is described including receiving a video signal in a first format, determining at least one parameter associated with the signal and a display device, converting the signal to a signal in a second format based on the signal and display device parameters, and converting the second signal to a display signal based on the display device parameter. The thermostat controller receives, over the local area network, computer-readable environmental data from the remote thermostats corresponding to the temperature and said humidity in the location where the remote thermostat is installed. The shift indicator, the maximum shift of mean value and the machine drift significance indicator are used to determine at least one likely cause of variation in critical dimension for each layer of the integrated circuit fabrication process. Templates may also define a set of choices, for example values, that user may choose for those rule elements. The method includes the steps of analyzing records from a plurality of call transactions based upon the predetermined business rule, recognizing a correlation among the call transaction records based upon the predetermined business rule and adjusting a resource of the call transactions based upon the recognized correlation and predetermined business rule.