Disclosed herein are an optical shutter for a plasma display panel and driving method thereof. The remote management apparatus has an network interface, a computer interface, and a console interface. The liquid fuel of hydrogen also allows the emission of pollution material to be greatly reduced. The combination of the cast iron and molded plastic flooring panels provides enhanced comfort for swine in farrowing operations. An indication that the condition associated with any of the transforms is present, and for which transform, is provided to a user.