Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains. The grain boundary includes a secondary phase including Sn, a rare-earth element, and a first subcomponent. The rare-earth element includes at least one of Y, Dy, Ho, Er, Gd, Ce, Nd, Sm, Tb, Tm, La, Gd and Yb. The first subcomponent includes at least one of Si, Mg, and Al.

Abstract: A method for manufacturing a vehicle wheel includes: a casting process of manufacturing the wheel in a one-piece body having a forming end and a temporary flange protruding at inner and outer sides of the wheel, respectively, wherein the one-piece body further includes a resonance chamber forming groove; a primary shape machining process of forming a stepped part at an outer circumferential side of the resonance chamber forming groove; a flow forming process of bending the forming end to be seated on the stepped part; a friction stir welding process of integrally bonding a portion where the forming end and the stepped part are in close contact with each other; a fine machining process of removing the temporary flange; and a sound-absorbing hole machining process of forming a sound-absorbing hole for communicating between the resonance chamber and an interior space of a tire in the forming end.

Abstract: A pre-coating filter device includes: a filtration tank comprising a raw water inlet through which raw water flows on one side, and a drain port at the bottom; a top cover coupled to the upper part of the filtration tank and comprising a coupling hole through the middle part; a purified water discharge pipe coupled to the coupling hole of the top cover; a purified water storage space unit coupled to the lower part of the top cover and located within the filtration tank, and comprising a communication pipe connected to the central part; a filter coupling plate body coupled to the lower part of the purified water storage space unit and comprising a plurality of coupling holes through; and a pre-coating filter coupled to the coupling hole of the filter coupling plate body.

Abstract: A multilayer electronic component has a body and a non-conductive resin layer. The non-conductive resin layer includes a body cover portion disposed in a region of an external surface of the body in which an electrode layer of an external electrode is not disposed, and an extending portion extending from the body cover portion between the electrode layer and a conductive resin layer of the external electrode, to thereby suppress arc discharge, improve bending strength, and improve moisture resistance.

Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a first bonding layer interposed between the first and second LED sub-units, a second bonding layer interposed between second and third LED sub-units, and a first connection electrode electrically connected to and overlapping at least one of the first, second, and third LED sub-units, the first connection electrode having first and second opposing side surfaces, the first side surface having a first length and the second side surface having a second length, in which the difference in length between the first side surface and the second side surface of the first connection electrode is greater than a thickness of at least one of the LED sub-units.

Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers and internal electrodes, and an external electrode disposed on the body and connected to the internal electrodes. The body includes an active portion including the plurality of internal electrodes to form capacitance, and cover portions disposed on the active portion, and the cover portions include an outer cover portion including a carbon compound and an inner cover portion disposed between the active portion and the outer cover portion. An average carbon content (Cc2) of the outer cover portion compared to an average carbon content (Cc1) of the inner cover portion satisfies 100?Cc2/Cc1?10,000.

Abstract: Provided are an ultra-rapid hardening hydraulic binder including reduced slag powder and a method of preparing the same. The reduced slag powder is prepared by rapidly cooling molten electric arc furnace reduced slag, among by-products generated during an iron refinement process in a steel mill, to room temperature not to have free-calcium oxide by scattering the molten electric arc furnace reduced slag into the air using high-pressure gas by dropping the molten electric arc furnace reduced slag through a tundish.

Abstract: The present invention relates to an artificial nail, more especially to an artificial nail and an apparatus for attaching the artificial nail on a nail of human being so that it is convenient to attach and change the artificial nail an can be adjusted according to the length of the artificial nail. The apparatus for attaching an artificial nail on the natural fingernail includes a lower attaching plate attached on an upper side of the natural fingernail, and an upper attaching plate attached on a lower side of the artificial nail and combined with the lower attaching plate.

Abstract: A golf tee comprising a burying device including a concave head portion for retaining a golf ball, and a first cone extending from the head portion by a predetermined length. At least one stacked inserting device I provided which includes a second cone made of a thin sheet and arranged to receive therein the first cone of said burying device. At least one blocking protrusion is formed in an outer circumference of the second cone. A spring is compressed between said burying device and said at least one stacked inserting device. A coupling device is coupled with the burying device. The coupling device includes a cylindrical body with openings in an upper portion and a lower portion thereof sized for said at least one stacked inserting device to pass therethrough.

Abstract: The present invention relates to an artificial nail, more especially to an artificial nail and an apparatus for attaching the artificial nail on a nail of human being so that it is convenient to attach and change the artificial nail an can be adjusted according to the length of the artificial nail. The apparatus for attaching an artificial nail on the natural fingernail includes a lower attaching plate attached on an upper side of the natural fingernail, and an upper attaching plate attached on a lower side of the artificial nail and combined with the lower attaching plate.

Abstract: The present invention relates to a golf tee, and more particularly, to a golf tee which is made of a thin sheet material to thus minimize the shock generated when a drive shot is performed so that a golfer hardly feels resistance and in which a plurality of inserting devices are stacked and with which a burying device is integrated so that it is not necessary to additionally carry a burying apparatus.