Abstract: A wind power generation system 10 comprising a frame, an impeller 12 rotatably supported by the frame, plural permanent magnets 31 aligned at equal intervals from the rotation center, and coils 32 aligned annularly on the frame. The relative motion of the permanent magnets 31 and the coils 32 in close vicinity generates electric powers by the inverse action of a linear motor. The coils 32 are mounted on the ring provided on the frame, and the permanent magnets 31 are provided on the lower end of the longitudinal blades 26 of the impeller.

Abstract: A plant cultivating device (A), comprising aluminum long square pipe trays (5) for storing plants (35) together with culture solution, a conveyor device (2) for feeding the trays (5) in order in lateral direction, and a lighting device (3), having a number of light-emitting diodes disposed thereon, located over the conveyor device (5), the lighting device (3) being disposed so as to be higher gradually from the upstream side to the downstream side of the conveyor device (2), wherein a funnel-shaped holder (30) holding the upper part of the plant (35) is provided on the upper surface of the tray (5), and a planting conveyor (6) and a harvesting conveyor (7) for supply and retrieval, a reflecting wall (8) provided between these conveyors and the conveyor device (2), and transfer bars (41) for transferring the trays (5) between the conveyor device (2) and the planting and harvesting conveyors (6,7) are installed on the upstream and downstream sides of the conveyor device (2).