Briefly, the present invention provides a dynamic channel re-assignment capability between mobile units, base stations and sectors within base station coverage areas. The first light-shield layers and the second light-shield layers are conductive. The first antenna conductor loops essentially extend in a first extending surface and are disposed in the first extending surface in a first direction in a row behind one another. The odorantimicrobial reduction layer contains an odorantimicrobial material. The method of deoxidation casting of the present invention comprises the steps of: reacting a deoxidizing compound, which is made by reacting a metallic gas on a reactive gas, on a molten metal; and deoxidizing an oxide film on a surface of the molten metal. The circuitry is configured to receive first stroke data corresponding to first strokes handwritten on a display, the first strokes including a stroke of a symbol.