The present invention provides a catalyst composition for the production of olefins by oxidative dehydrogenation of hydrocarbons, and of using such catalyst compositions. When the device is powered on, the heating coils warm the area around the user’s hair and scalp, and the fan blows air up through the air hose into the bonnet. The method includes memory-to-memory processing with separable x and y processing. For example, the first subframe and the second subframe are temporally spaced apart by at least the length of the first time interval.