A new reversible element with six lines and two states are proposed. The polarization diversity antenna elements of one of the polarization diversity antenna blocks are interposed between the polarization diversity antenna elements of another one of the polarization diversity antenna blocks, and tilt angles in the vertical plane of the respective polarization diversity antenna blocks are different from each other. The puncture resistant leakless material resists high temperature, low temperature, oil, and water, has high leakproof properties, and has low manufacturing costs. If the system finds an available heterogeneous resource that matches the request, it proceeds to submit the request to the resource. The vanes can be suspended in downwardly spaced relationship to the struts or in contiguous relationship therewith and occur in different forms including illuminated vanes, adjustable vanes and the like.