In a business network environment, each workstation or information access point has installed thereon a quality of service module to monitor the IAP’s performance. A pair of electrodes is prepared, plasma discharge is carried out by applying designated voltage between the pair of electrodes, fluid passage holes are provided at corresponding parts of respective electrodes so as to communicate with each other, and steam or fine droplets of water are applied to the fluid passage holes and plasma generated around the fluid passage holes. The OLED display further includes a coating unit formed to coat an external surface of the blocking unit and an encapsulation unit formed by alternately stacking at least one first thin film and at least one second thin film on an area surrounded by the blocking unit so as to encapsulate the organic light emitting unit. In a preferred embodiment, a body of the trailer is a clamshell body that is disposed vertically and transversely for traveling, and that includes clamshell portions. The printed loop fabric may also be produced by applying a thermoplastic material to the backside of a low loop fabric and laminating a pre-printed film to the thermoplastic material.