Abstract: This invention relates to a golf lesson apparatus and server by using intrinsic location and user authentication which is installed at each tee box of golf courses or driving ranges. This invention aims simple and easy correction of user's swing posture, and is comprised of: the Wireless Communication Part which authenticates users with the user's RFID ID card; the Motion Detection Part which records user's swing posture; the Data Storage Part which stores the video of the user's swing posture; the Key Input Interface Part which receives user's command; the Display Part which shows the video of the user's swing posture on real time basis and the video of analysis and lesson on user's swing posture transmitted from the golf lesson server; the Network Interface Part which connects the golf lesson server via wired/wireless networks; and the Control Part which provides the services linked with the Golf Lesson Server.

Abstract: The present invention relates to biodegradable plastic composition comprising rice powder and/or corn powder, which can be characterized in comprising 100 parts by weight of polyolefin matrix resin; 5 to 400 parts by weight of grain powder selected from the group consisting of rice powder, corn powder and mixture thereof. The biodegradable plastic composition according to the present invention can be manufactured in various forms such as injection molding product, sheet molding and blow molding product, which have excellent physical properties and product stability. The efficiency of waste disposable of the product manufactured with the composition can be remarkably improved since the rive powder or the corn powder contained in the composition can be degraded by microbes in the nature after a certain period. Therefore, the problems of soil, air, and sea pollution caused by burial or incineration of the wastes of conventional plastic molding product can be minimized.

Abstract: The present invention relates to biodegradable plastic composition comprising rice powder and/or corn powder, which can be characterized in comprising 100 parts by weight of polyolefin matrix resin; 5 to 400 parts by weight of grain powder selected from the group consisting of rice powder, corn powder and mixture thereof. The biodegradable plastic composition according to the present invention can be manufactured in various forms such as injection molding product, sheet molding and blow molding product, which have excellent physical properties and product stability. The efficiency of waste disposale of the product manufactured with the composition can be remarkably improved since the rive powder or the corn powder contained in the composition can be degraded by microbes in the nature after a certain period. Therefore, the problems of soil, air, and sea pollution caused by burial or incineration of the wastes of conventional plastic molding product can be minimized.

Abstract: The present invention relates to a biodegradable polystyrene capsule for molded product of polystyrene foam and to a method for manufacturing the same. The inventive biodegradable polystyrene capsule comprises a powder formed of a biodegradable material and a coating layer of foamable polystyrene resin formed on the surface of the powder. Products made from the biodegradable polystyrene capsule may variously used for packing material, insulating material, disposable products, etc. since the dame have great mechanical and physical properties such as impact-resistant property, anti-breakability, etc., and, since the biodegradable material inside the capsule is decomposed by microbes in the nature after a certain period, the efficiency of destruction is considerably improved, so it is possible to minimize problems of soil, air, and sea pollution caused by fill-in or incineration of the conventional wastes of molding foam product.