A wind driven generator includes a rotor disposed in a cylindrical duct and supported by a frame for rotation in response to wind flowing through the duct. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat andor back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat andor the back. The partially separated material on emerging from the in-line swirl generator is in an evaporation tube in which the more volatile component is vaporized to further assist in separating the two components into a liquid component and a gaseous or vapor component. In the second region the fastening elements are overlaid with the fusion-bondable film and the fusion-bondable film is not fusion-bonded to the surface fastener In the third region the fastening elements are not overlaid with the fusion-bondable film. The aggregated data is compared to reference data, and a potential problem within the application environment is detected if the aggregated data deviates from the reference data in a predetermined manner.