Impulsive noise is detected for each discrete multi-tone symbol. A reference generation module may adjust an ideal SCR conversion value based on a quantity of reductant slippage from the engine system so as to provide an adjusted ideal SCR conversion efficiency value. The composition of the present invention preferably comprises an extract of herbs or botanical or horticultural equivalents of the herbs or chemical or functional equivalents of one or more components of the herbal extract thereof. Furthermore, the beneficial agent at a first region of the device body can be modulated by the activatingdeactivating means to create a different agent delivery profile than the beneficial agent at a second region of the device body. The system’s performance with regard to a particular utility value is measured for the particular setting of configuration parameters associated with each point in the simplex. The limiting member, the loading member, and the cover member are disposed in the de-ionized water.