Abstract: The operating method of a server for providing a metaverse in which a call between user terminals may be performed may include: generating a first avatar based on profile information of a first user terminal and a second avatar based on profile information of a second user terminal; providing a map space in which the first avatar and the second avatar are able to travel; mediating a call between the first user terminal and the second user terminal based on whether a plurality of avatars including the first avatar and the second avatar have entered a first audio space included in the map space; and completing matching between the first user terminal and the second user terminal when a first sign of attraction to the second avatar is transmitted from the first user terminal and a sign of attraction to the first avatar is transmitted from the second user terminal.

Abstract: According to the present invention, an image-encoding method comprises the following steps: receiving image information; generating a restored block for the current block based on the image information; and generating a finally restored block for the current block by applying an in-loop filter to the restored block on the basis of the image information. According to the present invention, image-encoding/decoding efficiency may be improved.

Abstract: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal.

Abstract: Disclosed is a method of processing a substrate, the method including: a coating operation of supplying a coating liquid containing a volatile component to a top surface of the substrate to form a cleaning film; and a cleaning film processing operation of processing the cleaning film, in which the cleaning film processing operation includes: a crack formation operation of generating a crack in the cleaning film formed on the substrate to form film flakes; and a delamination operation of delaminating the film flakes from the top surface of the substrate by volatilizing the volatile component contained in the film flake.

Abstract: When used as an active ingredient, bornyl acetate or a pharmaceutically acceptable salt thereof according to the present invention exhibits the effects of alleviating behavioral scales in an animal model, inhibiting the activation of microglia and the generation of inflammatory factors (COX-2 and iNOS), and lowering nerve excitability for responsiveness to cell-neural stimuli. Thus, bornyl acetate or a pharmaceutically acceptable salt thereof is found to have an excellent stress modulating potential and to be useful for the prevention and treatment of stress-related diseases, especially, depression, thereby finding advantageous applications in related industries.

Abstract: A semiconductor device includes an active pattern including a lower pattern and a plurality of sheet patterns; a gate structure disposed on the lower pattern and surrounding the plurality of sheet patterns; and a source/drain pattern filling a source/drain recess formed on one side of the gate structure. The source/drain pattern includes a first semiconductor pattern extending along the source/drain recess and contacting the lower pattern, a second and third semiconductor patterns sequentially disposed on the first semiconductor pattern, a lower surface of the third semiconductor pattern is disposed below a lower surface of a lowermost sheet pattern, a side surface of the third semiconductor pattern includes a planar portion, and a thickness of the second semiconductor pattern on the lower surface of the third semiconductor pattern is different from a thickness of the second semiconductor pattern on the planar portion of the side surface of the third semiconductor pattern.

Abstract: According to the disclosure, a display device includes a substrate including a display area and a non-display area, outer pixels positioned in the display area and positioned in a first direction from an edge of the substrate, dummy holes positioned in the non-display area and positioned between the edge of the substrate and the outer pixels, and a dummy line positioned in the non-display area and extending in a second direction different from the first direction between the dummy holes. The dummy line is positioned between a first insulating layer and a second insulating layer, and the dummy holes pass through the first insulating layer and the second insulating layer.

Abstract: The present invention relates to a non-rotating direct current electric generator capable of generating a direct current with high efficiency without rotating a field magnet or an armature.

Abstract: The present disclosure discloses a catalyst for liquid phase reforming of biomass derived from hydrotalcite, a method for preparing the same, and a method for producing hydrogen using the same. The catalyst is a mixed metal oxide catalyst, the catalyst is a nickel-zinc-aluminum mixed metal oxide of a hydrotalcite structure, and the catalyst is used for liquid phase reforming of biomass. The catalyst has an effect of providing a high yield of hydrogen by improving an efficiency of the liquid phase reforming reaction of biomass.

Abstract: Disclosed herein is a method of manufacturing a dehydrogenation catalyst, the method includes: forming a functional oxide coating layer on a surface of a support with a first atomic layer deposition; and depositing metal particles on the surface of the support on which the functional oxide coating layer is formed, with a second atomic layer deposition.

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

Abstract: Disclosed is an operation method of an electronic apparatus assigning power based on a position of a terminal, the method including receiving data transmission requests from a first terrestrial terminal and a second terrestrial terminal, wherein the first terrestrial terminal and the second terrestrial terminal use overlapped frequency resources, and assigning a first transmission power intensity to the first terrestrial terminal and assigning a second transmission power intensity to the second terrestrial terminal based on a position of the first terrestrial terminal and a position of the second terrestrial terminal.

Abstract: A difference detection device comprising: a data collection module configured to collect a satellite image set comprising a plurality of satellite images; a pre-processing module configured to generate a pre-processing image set by matching characteristic information of the satellite images included in the satellite image set; and a difference determination module configured to generate difference information between the plurality of satellite images by determining a difference between pre-processing images included in the pre-processing image set, wherein the characteristic information comprises at least one of illumination information and color information of the satellite image.

Abstract: Gas collection devices are provided. In certain embodiments, the gas collection devices comprise: a jig unit; a cylindrical battery; a carrier unit; a chamber body unit having an opening formed at a first end and including a battery accommodation area configured to accommodate the carrier unit; a chamber cap unit coupled to the first end of the chamber body unit and including a first side covering the opening; a first driving unit configured to move the carrier unit through the opening into the battery accommodation area; a second driving unit configured to seal the first end of the chamber body unit with the chamber cap unit and configured to separate the first end of the chamber body unit from the chamber cap unit; and a gas delivery flow path connected to the chamber body unit to deliver analysis target gas diffused into the battery accommodation area to a gas analysis unit. In addition, gas collection devices are provided in which loading, unloading, punching, etc.

Abstract: The present invention relates to a method for improving muscle strength, and/or muscle mass by administering a composition containing as an active ingredient at least one selected from the group consisting of Akkermansia muciniphila cells, a culture thereof and a lysate thereof, and a method for preventing or treating muscle diseases where muscle strength and/or mass is weakened by sarcopenia, cachexia or muscle wasting.

Abstract: The present disclosure relates to semiconductor memory devices. An example semiconductor memory device comprises a substrate, a structure including word lines and interlayer insulating films alternately stacked on the substrate, a channel region disposed between two adjacent word lines in a vertical direction, a first source/drain region disposed on a first side of the channel region, a second source/drain region disposed on a second side of the channel region, a bit line which extends in the vertical direction on the substrate and is connected to the first source/drain region, a capping insulating film disposed between the bit line and the word lines, and a data storage connected to the second source/drain region. At least a part of the first source/drain region protrudes from a sidewall of the capping insulating film toward the bit line.

Abstract: A system and method for in-storage machine learning operations. In some embodiments, a system includes a first persistent memory, and a control and inference circuit. The first persistent memory may be connected to the control and inference circuit by a wideband data connection, and the control and inference circuit may be configured to perform arithmetic operations.

Abstract: A gas detection device is disclosed.

Abstract: A system and method for managing memory resources. In some embodiments, the system includes a stored-program processing circuit, a network interface circuit, a cache-coherent switch, and a first memory module. In some embodiments, the first memory module is connected to the cache-coherent switch, the cache-coherent switch is connected to the network interface circuit, and the stored-program processing circuit is connected to the cache-coherent switch.

Abstract: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal. Some implementations may include obtaining a macroblock type, when a macroblock includes the intra prediction coded sub-macroblock and the inter prediction coded sub-macroblock based on the macroblock type, obtaining prediction mode flag information indicating whether the sub-macroblock is the intra prediction coded or the inter prediction coded, and obtaining a prediction value of the sub-macroblock. Accordingly, implementations disclosed herein may raise coding efficiency of video signal by adding an intra prediction mode as a sub-macroblock type in predicting a macroblock.