A self-regenerating, self-cleaning hydrophobic surface is formed when particles are secured on a carrier that is itself a mixture of particles and binder. It is not necessary to \u201cthread\u201d the clamp onto the rod starting at the end and sliding it down the length of the rod to the desired location. In addition, the invention provides an improved weldless installation means that is rigid and not prone to leaking. The bi-metallic door actuator is coupled to the door and is configured to selectively move the door between the closed position and the open position. The second barrier area borders on the semiconductor area and has the second conductivity type and a higher dopant concentration than the semiconductor area. A user can manually modify the automated layout, and in response, the files and folders are automatically shifted to accommodate the changes introduced by the user.