Abstract: Provided are a composition for culturing NK cells, and a method of culturing NK cells using the same. According to an aspect, in culturing NK cells from peripheral blood mononuclear cells, when NK cells are cultured in a medium including the composition for culturing NK cells, the composition including IL-15, IL-18, and IL-27, the NK cells may proliferate in large quantities and activation of NK cells may be promoted. Therefore, when the NK cells are used, cancer cell apoptosis or cancer cell-killing ability may be promoted. Accordingly, the NK cells may be used as an effective adoptive immune cell therapy product in cancer prevention or treatment.

Abstract: First electronic device includes a communication interface and a processor. The processor is configured to: receive, from the second electronic device, an incoming message destined for the first electronic device, transmit, to the third electronic device, message information related to the incoming message, the message information being used for displaying the incoming message on the third electronic device, transmit preset texts to the third electronic device, the preset texts being stored in the first electronic device to be used for replying to messages receivable by the first electronic device, based on one of the preset texts being selected by a user input among the preset texts displayed on the third electronic device, receive response information from the third electronic device, the response information being related to the one of the preset texts, and transmit, to the second electronic device, a response message including the one of the preset texts.

Abstract: A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.

Abstract: Methods of manufacturing a semiconductor chip are provided. The methods may include providing a semiconductor substrate including integrated circuit regions and a cut region. The cut region may be between the integrated circuit regions. The methods may also include forming a modified layer by emitting a laser beam into the semiconductor substrate along the cut region, polishing an inactive surface of the semiconductor substrate to propagate a crack from the modified layer, and separating the integrated circuit regions along the crack. The cut region may include a plurality of multilayer metal patterns on an active surface of the semiconductor substrate, which is opposite to the inactive surface of the semiconductor substrate. The plurality of multilayer metal patterns may form a pyramid structure when viewed in cross section.

Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction mode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method may comprise deriving a prediction sample of a current block based on motion information of the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block, deriving, based on that the PROF applies to the current block, a difference motion vector for each sample position in the current block, deriving a gradient for each sample position in the current block, deriving a PROF offset based on the difference motion vector and the gradient, and deriving a refined prediction sample for the current block based on the PROF offset.

Abstract: A semiconductor package includes a semiconductor chip including a first area and a second area around the first area, and a substrate including a second surface, the second surface facing a first surface of the semiconductor chip, a first trench defined on the second surface, and the first trench at least partially overlapping the second area of the semiconductor chip. The semiconductor package includes a bump structure including first bumps on the first area of the semiconductor chip, and second bumps on the second area of the semiconductor chip, the bump structure between the substrate and the semiconductor chip, and a first passive device in the first trench. The second bumps are in contact with the first surface of the semiconductor chip and the first passive device.

Abstract: An embodiment provides a deposition device including a magnet part that includes magnets; and a substrate support that faces the magnet part and that supports a substrate, the substrate support includes a support plate and patterns formed on a first surface of the support plate, and each of the patterns corresponds to a space between neighboring magnets among the magnets or corresponds to the magnets.

Abstract: A heat storage body for a regenerative catalytic apparatus is provided, the heat storage body includes: a body unit including a ceramic sintered body containing aluminum oxide, silica, and magnesium oxide, the body unit having a plurality of channels connecting first and second surfaces, located opposite to each other. The heat storage body further including a protective film disposed on a surface of the body unit and inner surfaces of the plurality of channels. The protective film includes an oxide containing a first metal of aluminum and at least one second metal including at least one from among yttrium, zinc, zirconium, tungsten, zinc, and nickel.

Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan properties compared to a conventional organic electroluminescent device can be provided by including the specific combination of compounds according to the present disclosure as a plurality of host materials or by including the compound according to the present disclosure.

Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed specifying a bock type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising at least one compound represented by formula 1 and a second host material comprising at least one compound represented by formula 2, and an organic electroluminescent device comprising the same. An organic electroluminescent device having significantly improved lifetime properties is provided by comprising a specific combination of compounds according to the present disclosure as host materials.

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus comprises decoding a first flag specifying whether in-loop filtering is able to be performed across a boundary of a subpicture from a bitstream and performing the in-loop filtering on a boundary of a current block, based on the first flag. Based on the boundary of the current block being a boundary of a current subpicture including the current block, the in-loop filtering on the boundary of the current block is not performed, based on the first flag for the current subpicture specifying that the in-loop filtering is not able to be performed across the boundary of the current subpicture or the first flag for an adjacent subpicture adjacent to the boundary of the current block specifying that the in-loop filtering is not able to be performed across the boundary of the adjacent subpicture.

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method comprises deriving a prediction sample of a current block based on motion information of the current block, deriving a reference picture resampling (RPR) condition for the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block based on the RPR condition, and deriving a refined prediction sample for the current block by applying PROF to the current block.

Abstract: The present invention relates to a coating jig for stents. According to the present invention, a coating jig for stents, having a surface roughness, comprises a jig shaft portion, a first block portion fixedly coupled to a first end of the jig shaft portion, a second block portion opposingly disposed with respect to the first block portion and variably positioned to slide along an outer circumference of the jig shaft portion, and a surface region. A surface roughness may be formed on at least one or more of the jig shaft portion, the first block portion, and the second block portion.

Abstract: The present invention relates to a stent. In particular, the present invention relates to a stent that can improve stickiness of a membrane, used in treating obstruction of a digestive system in humans using an endoscope without a surgery. According to an embodiment of the present invention, a stent with an improved stickiness of a membrane comprises a body portion including a hollow cylindrical shape, wherein wires are woven to form a mesh structure, a membrane portion provided in the body portion to cover the mesh structure, and a micro-rough surface formed on all or at least a part of the membrane portion.