Abstract: The present disclosure relates to a composition for a worm wheel having excellent durability and wear resistance and a worm wheel manufactured using the same. In one embodiment, the composition for a worm wheel includes a polyamide resin, wherein the polyamide resin includes a polyamide 66 resin having a relative viscosity (RV) of about 2.5 or higher and a polyamide 12 resin having a relative viscosity (RV) of about 1.0 or higher.

Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.

Abstract: A socket-type fluid distributor for distributing and supplying a gas and/or liquid reactant into a reactor body. The socket-type fluid distributor includes: a distributor body, a bottom portion of which is inserted into the reactor body; a mixing flow path formed in a central portion of the distributor body such that the mixing flow path penetrates through the distributor body into the reactor body; a gas reactant input portion disposed above the distributor body and having a gas flow path; a liquid reactant input portion disposed between the distributor body and the gas reactant input portion and having a liquid flow path; and a flow control portion formed in the mixing flow path.

Abstract: A container includes a container portion having a storage space in which contents are stored, a spout coupled to the container portion and through which the contents in the container portion are discharged, and a nozzle configured to discharge the contents in fixed amounts, wherein the contents enter the nozzle from the head portion, and the spout and the nozzle are integrally formed.

Abstract: Provided is a container including a container portion configured to form a storage space in which contents are stored, a head portion disposed at an upper side of the container portion and configured to promote discharge of the contents, which enter the head portion from the container portion, through an internal pressure change caused by a pressing portion which is formed at one side of the head portion and made of an elastic material, and a nozzle configured to discharge the contents, which enter the nozzle from the head portion, in fixed amounts.

Abstract: An acoustic resonator includes: a substrate; a resonant portion including a center portion in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on the substrate, and an extension portion disposed along a periphery of the center portion; and a first metal layer disposed outwardly of the resonant portion to be electrically connected to the first electrode. The extension portion includes a lower insertion layer disposed on an upper surface of the first electrode or a lower surface of the first electrode. The piezoelectric layer includes a piezoelectric portion disposed in the center portion, and a bent portion disposed in the extension portion and extended from the piezoelectric portion at an incline according to a shape of the lower insertion layer. The lower insertion layer is formed of a conductive material extending an electrical path between the first electrode and the first metal layer.

Abstract: The present inventive concept relates to a method for obtaining a subgingival marginal shape for a prosthesis design non-invasively by means of an optical coherence tomography (OCT) scanner for obtaining a subgingival marginal shape and an intraoral scanner for obtaining a tooth surface shape, the method including the steps of: obtaining a surface shape of a prepared tooth by means of the intraoral scanner; obtaining the subgingival marginal shape (crown margin line) of the prepared tooth by means of the OCT scanner; and merging the surface shape of the prepared tooth with the subgingival marginal shape to obtain a final three-dimensional shape of the prepared tooth.

Abstract: The present invention relates to an air conditioner for a vehicle, which includes an air-conditioning case (200), and at least one door (100) mounted to be opened and closed at a predetermined position, wherein the door (100) is formed integrally with an arm pivot (140), and the arm pivot (140) includes a pin part, and ribs formed integrally with both sides of the pin part to reinforce rigidity of the pin part and offset noise. The air conditioner further includes distortion preventing parts formed on a rotary shaft to be dented and to be crossed to each other, thereby reducing a transformation rate of the door and securing accuracy of the pin part.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes first cathode active material particles having a secondary particle structure, and the second cathode active material layer includes second cathode active material particles having a single particle shape. A ratio of a SPAN value of the second cathode active material particles relative to a SPAN value of the first cathode active material particles is in a range from 2 to 4.5.

Abstract: A semiconductor device includes a plurality of conductive structures arranged on a substrate and spaced apart from each other in a second direction substantially perpendicular to a first direction, in which each of the plurality of conductive structures extends in the first direction. A plurality of contact structures are arranged between the conductive structures in an alternating arrangement and spaced apart from each other in the first direction. A plurality of insulation structures are arranged in a space between the conductive structures and between the contact structures. A plurality of air spacers are arranged between the alternating arrangement of the plurality of conductive structures and the plurality of contact structures, respectively and spaced apart from each other in the first direction.

Abstract: A carboxylic acid-modified nitrile-based copolymer latex includes a carboxylic acid-modified nitrile-based copolymer including: 65.5 wt % to 82.5 wt % of a conjugated diene-based monomer-derived unit, 15 wt % to 30 wt % of an ethylenic unsaturated nitrile-based monomer-derived unit, and 2.5 wt % to 4.5 wt % of an ethylenic unsaturated acid monomer-derived unit, wherein the carboxylic acid-modified nitrile-based copolymer latex satisfies General Formula 1: 1.0 mm2/s?CV0?3.0 mm2/s??[General Formula 1] wherein CV0 represents a capillary viscosity of the carboxylic acid-modified nitrile-based copolymer latex which is measured in a swollen state in a methyl ethyl ketone solvent.

Abstract: A flexible battery may include: an electrode assembly having one or more unit cells each of the unit cells including a pair of electrode plates having different polarities, a separator interposed between the respective electrode plates and electrode tabs that protrude from the respective electrode plates; a pair of electrode leads connected to electrode tabs; and a strengthening tab fixed on any one electrode lead connection tab among the electrode tabs.

Abstract: In a process of decomposing byproducts of a phenol production process using a reactive distillation column in which a reactor and a distillation column are integrated, since acetophenone is mixed with tar recovered to a lower part of the reactive distillation column and transferred, viscosity of the tar may be lowered so that the tar may be transferred at room temperature, and since the reactive distillation column may be operated at 0.5 to 3 bar, an operating temperature of the reactive distillation column is low as compared with a method of separating acetophenone by pressurization with high pressure, significantly reducing an operation cost of a heater required for a reaction. Also, since acetophenone is separately recovered at a position of 25 to 90% of a total number of stages in the reactive distillation column, recovery of an active ingredient may be enhanced.

Abstract: The present invention relates to the structure of an electronic control unit (ECU) in a brake system, in which an ECU board that constitutes redundancy is additionally arranged in a symmetrical or asymmetric structure and a plurality of motor position sensors for redundancy are arranged, to prepare for malfunction of the ECU, to thus have an effect of operating the brake system normally by another motor position sensor even if one of the motor position sensors malfunctions.

Abstract: The present invention relates to a method for processing ginseng at an ultra high pressure, and more particularly, to a method for processing ginseng that is capable of processing the ginseng, which is immersed and packed, at an ultra high pressure. The method for processing ginseng includes the steps of: preparing washed ginseng; liquid-packaging the ginseng into a pouch; and treating the liquid-packaged ginseng with ultra-high pressure at a pressure of 550 to 600 MPa for 30 seconds to 2 minutes.

Abstract: A bulk acoustic resonator includes a first electrode disposed on an upper side of a substrate, a piezoelectric layer disposed on an upper surface of the first electrode, and a second electrode disposed on an upper surface of the piezoelectric layer, wherein an upper surface of at least one of the first electrode and the second electrode has a recess region, wherein a depth of the recess region is D, a width of the recess region is W, and a resonance frequency is F, and ln is a natural logarithm, and wherein [{ln(D*W)}/(?0.59*F)] is [[ln{0.008 (?m)2}]/{?0.59*(3.5 GHz)}] or more and [[ln{0.022 (?m)2}]/{?0.59*(3.5 GHz)}] or less.

Abstract: A window member may include a first member and a second member on the first member. A recovery rate of the second member may be 40% or more, and an absolute value of difference in recovery rate between the first and second members may be 45% or less.

Abstract: A control device of a brake system, according to the present invention, includes, as redundancy, a first control unit for controlling the valve, the motor and the like of a brake system by receiving a sensor unit input, and a second control unit capable of performing the same function as the first control unit when the first control unit malfunctions, and thus the present invention can control the brake system of a vehicle by using the second control unit in an emergency situation in which the first control unit does not normally operate.

Abstract: A bulk-acoustic wave resonator includes: a first electrode disposed above a substrate; a piezoelectric layer disposed to cover at least a portion of the first electrode; and a second electrode disposed to cover at least a portion of the piezoelectric layer. A plurality of steps are formed in any one or any combination of any two or more of the first electrode, the piezoelectric layer, and the second electrode in an active region in which the first electrode, the piezoelectric layer, and the second electrode are all disposed to overlap one another.

Abstract: Provided is a method of manufacturing a thin film electrode for an electrochromic device, and an electrochromic device manufactured thereby. Specifically, a method of manufacturing a thin film electrode for an electrochromic device includes: synthesizing insoluble Prussian blue nanoparticles; adding a surfactant to the insoluble Prussian blue nanoparticles to form water-soluble Prussian blue nanoparticles; adding a solvent and a binder to the water-soluble Prussian blue nanoparticles to form a mixed solution; applying the mixed solution onto an electrode; and performing a drying process on the electrode applied with the mixed solution, wherein the drying process may be performed at 15° C. to 30° C.