Abstract: The present invention relates to an anti-inflammatory composition comprising Epimedium koreanum Nakai, Polygala tenuifolia Willd, and Polyporus umbellatus Fries extracts or a mixture thereof as an active ingredient. The extracts and mixture prepared according to the present invention exhibit a high inhibitory effect against nitric oxide and a suppressive effect against the expression of iNOS and COX2 and thus can be advantageously used as an anti-inflammatory composition.

Abstract: Provided is an apparatus for measuring dimensions of a spacer grid for nuclear fuel assemblies. The apparatus includes a fixing unit fixed to a measuring table placed on a floor and kept insulated from vibrations caused by external force, a measuring unit mounted on the fixing unit and configured so that measuring members are installed on both sides of a rectangular spacer grid and move in forward and backward directions by cylinders while grasping the both sides of the spacer grid, and measure abnormalities in the both sides of the spacer grid, and a displacement measuring unit mounted on one side of the measuring unit and sending the measured abnormalities in the both sides of the spacer grid to the outside.

Abstract: Provided is an apparatus for measuring dimensions of a spacer grid for nuclear fuel assemblies. The apparatus includes a fixing unit fixed to a measuring table placed on a floor and kept insulated from vibrations caused by external force, a measuring unit mounted on the fixing unit and configured so that measuring members are installed on both sides of a rectangular spacer grid and move in forward and backward directions by cylinders while grasping the both sides of the spacer grid, and measure abnormalities in the both sides of the spacer grid, and a displacement measuring unit mounted on one side of the measuring unit and sending the measured abnormalities in the both sides of the spacer grid to the outside.

Abstract: A method for recycling copper oxide includes: a first step in which a sodium hydroxide aqueous solution is added to acidic copper chloride waste etchant produced in the PCB industry, to obtain copper hydroxide slurry; and a second step in which the slurry obtained in the first step is heated and sintered to thereby prepare a needle-form copper oxide. Since copper oxide has a purity of more than 99.0 wt % and the needle-form crystal morphology, so that it has an excellent filtering ability and homogeneous particle size distribution.

Abstract: A method for recycling copper oxide includes: a first step in which a sodium hydroxide aqueous solution is added to acidic copper chloride waste etchant produced in the PCB industry, to obtain copper hydroxide slurry; and a second step in which the slurry obtained in the first step is heated and sintered to thereby prepare a needle-form copper oxide. Since copper oxide has a purity of more than 99.0 wt % and the needle-form crystal morphology, so that it has an excellent filtering ability and homogeneous particle size distribution.