An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The electrodes are arranged side by side in a first direction. A second portion of the electrical connector extends from the plate. Additionally, this invention provides a method to make a high strength and structurally stable hurricane resistant louvered shutter. An actual abnormality is similarly classified as malignant or benign based on further cross-correlation values obtained by comparisons with additional templates corresponding to malignant and benign abnormalities. Each membrane mat has a plurality of hollow fiber members.