Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: Provided is a method of manufacturing a light-emitting element, the method including positioning a substrate, forming a first separation layer, which includes a first sacrificial layer, an etching control layer on the first sacrificial layer, and a second sacrificial layer on the etching control layer, on the substrate, forming at least one first light-emitting element on the first separation layer, and separating the first light-emitting element from the substrate.

Abstract: Disclosed is to provide a composition for skin-whitening or preventing or improving skin wrinkles, comprising a green tea extract which has modified amounts of ingredients. More specifically, the extract and composition according to one aspect of the present disclosure are derived from natural plants that cause less irritation to the skin and are eco-friendly, thus they are safe, and thereby the extract and composition can exhibit excellent effects of effectively inhibiting melanin production and tyrosinase activity and preventing or improving skin whitening, and can exhibit excellent effects of effectively inhibiting the expression of MMP-1 and preventing or improving skin wrinkles.

Abstract: Disclosed is an exoskeleton-type rehabilitation robot system, including: a body part provided on a chair in which a user sits and provided with a robot arm capable of moving left or right based on the user seated on the chair; a conversion part configured to convert a position of the robot arm with respect to the body part; a driving part configured to articulate the robot arm with respect to the body part; and a controller configured to detect a change in a position of the robot arm and control a left or right driving mode of the driving part according to the position of the robot arm. In accordance with such a configuration, the exoskeleton-type rehabilitation robot system of the present invention is provided integrally with a chair, thereby having excellent space utilization. In addition, the user's initial preparation for rehabilitation training is simple, which can improve efficiency.

Abstract: It is disclosed a blood glucose prediction system and method using saliva-based artificial intelligence deep learning technique.

Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.

Abstract: The present invention relates to entangled-type carbon nanotubes which have a bulk density of 31 kg/m3 to 85 kg/m3 and a ratio of tapped bulk density to bulk density of 1.37 to 2.05, and a method for preparing the entangled-type carbon nanotubes.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: The present invention relates to a carbon composite material and a method for producing the same, and more particularly, to a carbon composite material capable of improving electrostatic dispersibility and flame retardancy, and a method for producing the same. The carbon composite material according to the present invention can be effectively applied to products requiring conductivity and flame retardancy.

Abstract: The present invention relates to entangled-type carbon nanotubes which have a bulk density of 31 kg/m3 to 85 kg/m3 and a ratio of tapped bulk density to bulk density of 1.37 to 2.05, and a method for preparing the entangled-type carbon nanotubes.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: A memory system may include: a memory device; and a controller. When at least one data group is received, the data group including a plurality of data which is required to be collectively processed, the controller reads preceding logical-to-physical (L2P) map information for the data group from a first table and stores the read L2P map information in a second table before reception of the plurality of the data of the data group is committed, and the controller stores the plurality of the data in the memory device, and the controller updates the L2P map information for the data group that is stored in the first table in response to the storing of the plurality of the data in the memory device.

Abstract: The present invention relates to a carbon nanotube composition including entangled-type carbon nanotubes and bundle-type carbon nanotubes, wherein the carbon nanotube composition has a specific surface area of 190 m2/g to 240 m2/g and a ratio of specific surface area to bulk density of 0.1 to 5.29.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: A data storage device may include a nonvolatile memory device, and a controller configured to increase an assert count, when a malfunction occurs while an operation for a command received from a host device is executed, the assert count representing the number of times the malfunction has occurred, and execute a flash translation layer (FTL) resetting operation in a read-dedicated mode in response to an initialization request from the host device when the assert count is greater than or equal to a reference value.

Abstract: The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m3, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.

Abstract: A memory system includes a memory device including plural non-volatile memory cells storing firmware and a controller configured to load the firmware in a volatile memory and employ a plurality of cores, each capable of performing an operation based on the firmware. A core, which is in a standby state or an idle state between the plurality of cores, is configured to check whether an error has occurred in the volatile memory in which the firmware is loaded.