Abstract: An emanation device is described which comprises a housing defining a sealed container having a front wall and a rear wall defining the length and width of the housing and connected to each other by a top wall, a bottom wall and one or more side walls defining the depth of the housing, wherein the length and width are each greater than the depth; one or more vent holes in the housing; electrical plug pins connected to the rear wall of the housing, said plug pins being operatively connected to a heating means located within the interior of the housing; an absorbent pad containing a quantity of air treatment agent mounted within the interior of the housing; wherein the pad fills a majority of the length and width of the housing; and wherein the heating means is located in connection with or immediately adjacent to a central portion of the pad on the front face thereof where the front face of the pad is adjacent the front wall and remote from the face of the pad facing the rear wall and electrical plug pins.

Abstract: A method of dynamic model selection for hybrid linear/non-linear process control includes developing a plurality of process models including at least one linear process model and at least one non-linear process model from inputs including dynamic process data from a processing system that runs a physical process. At least two of the plurality of process models are selected based on a performance comparison based on at least one metric, wherein the selected process models number less than a number of the plurality of process models received. A multi-model controller is generated that includes the selected process models. The physical process is simulated using the multi-model controller by applying the selected process models to obtain closed loop performance test data for each of the selected models. The performance test data is compared. A selected process model is then selected.