The inventive plasma display is capable of enhancing the luminous efficiency and the brightness by minimizing ineffective ultraviolet rays. In some embodiments, the tire dressing composition comprises a silicone microemulsion, a wetting agent, and optionally a fluorocarbon or hydrocarbon propellant when an aerosol system is used. The memory communicates with the processing circuitry and is configured to store at least one knowledge base. The unloading line has a substantially uniform cross section and is shaped so that the velocity of the flow close to the inner wall is substantially equal in the same cross section.