Abstract: A method for processing a polymeric article, by introducing ingredients including a polymeric material for forming a polymeric article into an apparatus including a wall surface over which the polymeric material travels in at least a fluidic state, and an orifice through which the ingredients exit the apparatus. The ingredients are mixed while in the apparatus to form a polymeric ingredients mixture. A corrosion response of the wall surface of the apparatus is monitored with at least one resistance corrosion sensing probe that is flush mounted with the interior wall surface. The polymeric mixture is solidified after it exits the orifice for forming the polymeric article and mitigating corrosion detected by the monitoring step.

Abstract: A method for detecting a latent environmental effect (such as a corrosive environment under insulation) or a latent structural change (such as a crack in a concealed structural member) at a known remote concealed location. The method of the instant invention includes three steps. The first step is to use a harmonic electromagnetic transponder at the known remote concealed location of the latent environmental effect or the latent structural change, the harmonic electromagnetic transponder having a reactive portion which reacts to the latent environmental effect or latent structural change to modify the harmonic emission of the transponder. The second step is to remotely interrogate the transponder by directing electromagnetic radiation at the transponder. The third step is to use the harmonic emission of the transponder to remotely determine the latent environmental effect or the latent structural change.