A hydraulic fracturing ball sealer used in fracturing of shale formations. Specifically, the signal is processed to develop an amplitude versus time waveform. The surface treatment, comprised in part of an anti-proliferative or anti-angiogenic drug, is applied to portions of the thrombosis filter in order to regulate neointimal growth around the thrombosis filter and its anchor elements. The distribution manifold integrally connects the fuel cell stack portion with the waste energy recovery portion. The passageway also has structure for injecting steam into the passageway and a means for drawing flue gas from the furnace through the passageway.