Abstract: A semiconductor package is provided. The semiconductor package comprises a package substrate, a first semiconductor chip on the package substrate, a second semiconductor chip spaced apart from the first semiconductor chip on the package substrate, and a bridge die placed below the first semiconductor chip and the second semiconductor chip on the package substrate, wherein the bridge die includes a first face that faces the first semiconductor chip and the second semiconductor chip, a second face that faces the package substrate, a connection wiring structure which is placed on the first face, and connects the first semiconductor chip and the second semiconductor chip, and a power wiring structure which is placed on the second face, and provides power to the first semiconductor chip and the second semiconductor chip.

Abstract: A flower supporting device. A plurality of rotatable beads are connected by connection means having elasticity so that a support body is formed. A plurality of support bodies are arranged to be staggered up and down with each other so that a stem of a flower can be inserted between adjoining supporting bodies to be supported by them.

Abstract: A flower supporting device. A plurality of rotatable beads are connected by connection means having elasticity so that a support body is formed. A plurality of support bodies are arranged to be staggered up and down with each other so that a stem of a flower can be inserted between adjoining supporting bodies to be supported by them.

Abstract: A windmill. A wind intake section has wind guide plates, a wind inlet defined between two adjoining wind guide plates, and a wind inlet opening and closing device placed at the wind inlet. The wind inlet opening and closing device is opened by the wind flowing through the wind inlet into the windmill and closed by the wind flowing through the wind inlet out of the windmill. A power generating section is disposed to rotate rotors by the wind introduced into the windmill through the wind intake section and thereby generate electricity. A wind exhaust section has a wind outlet, and a wind outlet opening and closing device placed at the wind outlet. The wind outlet opening and closing device is opened by the wind flowing through the wind outlet out of the windmill and closed by the wind flowing through the wind outlet into the windmill.

Abstract: A rotation shaft is installed in the center of a wind turbine. Blades are secured to the rotation shaft to be circumferentially spaced apart one from another. Each blade has a lattice composed of transverse lattice elements and longitudinal lattice elements which are plaited to cooperatively define a plurality of spaces. In each space, a rotation adjustment piece is coupled to a first portion of a lattice element to be capable of rotating between a closing position where it closes a predetermined number of the spaces and an opening position where it opens a predetermined number of the spaces, so that the blades as a whole can be rotated irrespective of a wind direction. Electricity is generated using wind applied to the rotation shaft through rotation adjustment pieces.

Abstract: A windmill. A wind intake section has wind guide plates, a wind inlet defined between two adjoining wind guide plates, and a wind inlet opening and closing device placed at the wind inlet. The wind inlet opening and closing device is opened by the wind flowing through the wind inlet into the windmill and closed by the wind flowing through the wind inlet out of the windmill. A power generating section is disposed to rotate rotors by the wind introduced into the windmill through the wind intake section and thereby generate electricity. A wind exhaust section has a wind outlet, and a wind outlet opening and closing device placed at the wind outlet. The wind outlet opening and closing device is opened by the wind flowing through the wind outlet out of the windmill and closed by the wind flowing through the wind outlet into the windmill.