Abstract: The liquefied gas storage tank includes a primary barrier, a primary insulation wall, a secondary barrier, and a secondary insulation wall. In a state where unit elements are arranged adjacent to each other, each of the unit elements being formed by stacking the secondary insulation wall, the secondary barrier, and a fixed insulation wall which is a part of the primary insulation wall, the primary insulation wall may comprise: a connection insulation wall provided in the space between the adjacent fixed insulation walls; first slits formed between the fixed insulation walls and the connection insulation wall when the connection insulation wall is inserted and installed between the adjacent fixed insulation walls; a plurality of second slits formed in a lengthwise direction and a widthwise direction of the fixed insulation walls; and a first insulating filler material for filling the first slits.

Abstract: The present invention relates to a fuel cell membrane humidifier, which improves binding force between a potting part and an inner case, and thus can maintain the binding force even if a fuel cell is repeatedly operated and stopped. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a humidification module for humidifying air, supplied from the outside, with the moisture of exhaust gas discharged from a fuel cell stack; and caps, which are each coupled to the both ends of the humidification module. The humidification module comprises at least one cartridge comprising: an inner case; a plurality of hollow fiber membranes placed inside the inner case; and a potting part which fixes the ends of the plurality of hollow fiber membranes, and which is filled in and coupled to the end part of the inner case.

Abstract: A motor includes a rotor and a stator, in which the rotor includes: a rotor core including a plurality of core portions disposed on a rotation shaft along an axial direction of the rotor, wherein the rotor core includes a core flow path through which a cooling fluid passes through each core portion; and a cooling plate which is inserted between the two divided core portions so that both surfaces are joined to the two neighboring core portions, and a distribution flow path that distributes the cooling fluid supplied from a cooling flow path of the rotation shaft into the core flow path of the two neighboring core portions is provided between at least one of the two neighboring core portions and the cooling plate.

Abstract: A positive electrode and a secondary battery including the same are provided. The positive electrode includes a current collector and a positive electrode active material layer disposed on the current collector, wherein the positive active material layer includes a positive electrode active material, a binder, and a multi-walled carbon nanotube, wherein the multi-walled carbon nanotube has an average length of 1-2 ?m and has a length standard deviation of 0.5 ?m or less.

Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.

Abstract: The present invention relates to a membrane humidifier for a fuel cell which can improve humidification efficiency by selectively supplying exhaust gas discharged from a fuel cell stack to each part of a hollow fiber membrane module. A membrane humidifier for a fuel cell according to an embodiment of the present invention comprises: a hollow fiber membrane module, a humidification module, and an active flow control unit formed between a fuel cell stack and the humidification module and automatically controlling the exhaust gas discharged from the fuel cell stack so as to be supplied to at least one selected from among a first and an exhaust gas inlets.

Abstract: The present invention relates to a fuel cell membrane humidifier having an improved coupling force between a potting portion and an inner case so that the coupling force can be maintained even when a fuel cell is repeatedly driven and stopped, the fuel cell membrane humidifier according to an embodiment of the present invention comprising: a humidification module for humidifying, with the moisture in exhaust gas discharged from a fuel cell stack, the air supplied from the outside; and caps respectively coupled to both ends of the humidification module. The humidification module comprises at least one cartridge including an inner case, a plurality of hollow-fiber membranes arranged in the inner case, the potting portion fixing the ends of the plurality of hollow-fiber membranes, and a laser bonding surface which is formed between the inner case and the potting portion through a laser bonding.

Abstract: A wafer manufacturing method, an epitaxial wafer manufacturing method, and a wafer and epitaxial wafer manufactured thereby, are provided. The wafer manufacturing method enables the manufacture of a wafer with a low density of micropipe defects and minimum numbers of particles and scratches. The epitaxial wafer manufacturing method enables the manufacture of an epitaxial wafer that has low densities of defects such as downfall, triangular, and carrot defects, exhibits excellent device characteristics, and improves the yield of devices.

Abstract: A method of manufacturing a semiconductor device includes: forming a trench in an insulating interlayer by etching the insulating interlayer; forming a conductive layer on bottom, side, and upper surfaces of the insulating interlayer where the trench is formed, using a first deposition process, the conductive layer on the bottom surface of the trench being thicker than the conductive layer on the side surface of the trench; forming a sacrificial layer in the trench covering the conductive layer formed on the bottom surface of the trench using a second deposition process different from the first deposition process; selectively removing the conductive layer formed on the upper surface of the insulating interlayer and formed on the side surface of the trench left exposed through the sacrificial layer; and selectively removing the sacrificial layer, to form a conductive line using the conductive layer remaining on the bottom surface of the trench.

Abstract: A server according to an embodiment includes a processor configured to receive a friend add request for a target account from a user terminal accessed with a user account; based on one of the user account and the target account being a protected account, transmit an approval request for the friend add request to a protector account connected to the protected account; and based on receiving a reply to the approval request from the protector terminal, add the target account to a friend list of the user account.

Abstract: A display device according to an embodiment includes: a display area and a component area at least partly surrounded by the display area; a light-emitting device disposed on a substrate in the display area and including a first electrode, an emission layer, and a second electrode; a capping layer disposed on the light-emitting device; a first low reflection layer overlapping the display area in a plan view and a second low reflection layer overlapping the component area in a plan view, the first and second low reflection layers disposed on the capping layer; an encapsulation layer disposed on the first low reflection layer; and a reflection adjusting layer disposed on the encapsulation layer, wherein the second low reflection layer includes an inorganic oxide.

Abstract: Provided are a method and apparatus for encoding or decoding a coding unit on an outline of a picture. An image decoding method and apparatus according to an embodiment determine whether a current coding unit extends across an outline of a picture, by comparing a location of the current coding unit in the picture to at least one of a width and a height of the picture, split the current coding unit in at least one direction into a plurality of coding units based on a shape of the current coding unit upon determining that the current coding unit extends across the outline of the picture, obtain block shape information and split type information of the current coding unit from a bitstream and split the current coding unit into a plurality of coding units based on the block shape information and the split type information upon determining that the current coding unit does not extend across the outline of the picture, and decode a coding unit that is no longer split among the plurality of coding units.

Abstract: A method of disinfection of a surface of a subject of harmful microorganisms including pathogenic bacteria and viruses upon visible light irradiation using a hybridized fluorescent silk is provided. The method includes placing a predetermined quantity of the hybridized fluorescent silk i) directly on to a skin surface of a subject; or ii) on a medium and then placing the medium on the skin surface of the subject. The method further includes applying light in the visible spectrum for a predetermined amount of time to the placed quantity of hybridized fluorescent silk, wherein the hybridized fluorescent silk is one of KillerRed, SuperNova, KillerOrange, Dronpa, TurboGFP, mCherry, or any combination thereof.

Abstract: A method of inactivating harmful microorganisms of a filtration medium including pathogenic bacteria and viruses is disclosed which includes placing a predetermined quantity of a hybridized fluorescent silk on to a filtration medium, applying light for a predetermined amount of time to the placed quantity of the hybridized fluorescent silk, and passing a fluid through the medium, wherein the fluid is one of substantially air or substantially water, wherein the hybridized fluorescent silk is one of KillerRed, SuperNova, KillerOrange, Dronpa, TurboGFP, mCherry, or any combination thereof.

Abstract: The present invention relates to a hybrid drive module, which may ensure pressing pressure for a lock-up clutch while reducing, through a simple structure, operating pressure of a piston for pressing a lock-up clutch disposed in a space to which fluid pressure of a torque converter is applied, the hybrid drive module having a small number of components and being capable of being easily assembled. The present invention is accomplished by providing a compensation chamber of the piston and filling the compensation chamber with a low-pressure fluid. In addition, the low-pressure fluid may be used as a fluid for lubricating and cooling an engine clutch.

Abstract: An apparatus and method for detecting performance degradation of an autonomous vehicle include a storage configured to store a deep learning model used for image recognition in the autonomous vehicle and a controller configured to determine entropy of each pixel among a plurality of pixels in an output image of the deep learning model, determine an average value of the entropy of the plurality of pixels, and detect performance degradation of the deep learning model based on the average value of the entropy of the plurality of pixels.

Abstract: A hybrid driving module includes a housing and an axial movement prevention part configured to restrict forward and rearward movements of a rotor hub relative to the housing. The axial movement prevention part provided in a bearing interposed between the housing and the rotor hub. The bearing includes a first race configured to adjoin a first peripheral surface, a second race configured to adjoin a second peripheral surface, and rolling elements interposed between the first race and the second race. The axial movement prevention part includes a bearing groove provided in a surface of the first race, a circumferential surface groove provided in a first circumferential surface, and a clearance prevention ring inserted across the circumferential surface groove and the bearing groove. A height of the clearance prevention ring is equal to or smaller than a depth of the circumferential surface groove.

Abstract: The present invention relates to a hybrid driving module having a structure that is compact in an axial direction and easily manufactured and assembled, and the hybrid driving module includes a rotor hub configured to support a rotor, connected to an engine, and configured to receive power of the engine, a first power transmission route configured to connect the rotor hub and an output member, and a second power transmission route provided in parallel with the first power transmission route and configured to connect the rotor hub and the output member, in which the rotor hub has a radial extension portion, and an axial extension portion connected to an outer periphery of the radial extension portion, in which a lock-up clutch and a damper, which control connection and disconnection between the rotor hub and the output member, are provided in the second power transmission route, and in which at least a part of the lock-up clutch and at least a part of the damper are disposed radially inside the axial extension

Abstract: A rail environment monitoring device using a traveling vehicle, the rail environment monitoring device includes a sensing unit connected to a traveling vehicle transporting a conveyed object along a travel rail, the sensing unit configured to sense a travel rail positioned on a path of travel of the traveling vehicle and a travel rail peripheral portion, and a map production unit configured to generate a map for the travel rail or the travel rail peripheral portion using data acquired by the sensing unit according to the path of travel of the traveling vehicle.

Abstract: A camera module includes a housing, and a reflective module changing a direction of light incident on the housing. The reflective module includes a first reflective member having a reflective surface, a holder fixedly coupled to the first reflective member, a first magnetic member mounted on the holder, and a second magnetic member mounted in the housing, facing the first reflective member, and spaced apart from the first magnetic member.