Disclosed are a system and method for installing tiles and the like. The method includes forming a layer of elongated nanostructures, and at least partially coating the elongated nanostructures with a coating. , a file for encrypting content and storing the content, a key that encrypted the content, and a use condition description for each service in which the content is used. The anti-relief sections are disposed on the inner circumference of the frame body between the flow guide members to increase the performance of the fan.