Methods, systems and apparatus, including computer program products are described for ranking content items identified by a search engine and delivering corresponding search results. The metal matrix composite material includes a porous matrix material combined with an inclusion material constrained within the pores of the porous matrix material. The pressure-sensitive adhesive layer is disposed over the transparent film support material inner surface. Each of the plurality of BTS RF connections is operable to be coupled to one of one or more sectors of a BTS. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur.