Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing search results. A reference-value determining unit determines the reference-value. Thus, there is an advantage that additional cost does not occur. For improved electrical connection a tie layer is provided through the insulative layer onto the grounding layer in bonding relation with the ground layer. The station includes a pump that includes tube having a submerged hose for drawing water from a source and output it by means of a bendable spout-like tube. Each capacitor may be physically coupled adjacent the gate driver board via clips, clamps, andor fasteners.