Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5<x<1.3; disposing a polymer layer including a polymer compound on the silicon-based compound; disposing a metal catalyst layer on the polymer layer; heat treating the silicon-based compound on which the polymer layer and the metal catalyst layer are disposed; and removing the metal catalyst layer, wherein the polymer compound includes any one selected from the group consisting of glucose, fructose, galactose, maltose, lactose, sucrose, a phenolic resin, a naphthalene resin, a polyvinyl alcohol resin, a urethane resin, polyimide, a furan resin, a cellulose resin, an epoxy resin, a polystyrene resin, a resorcinol-based resin, a phloroglucinol-based resin, a coal-derived pitch, a petroleum-derived pitch, a tar and a mixture of two or more thereof.

Abstract: An electrode assembly, in which a positive electrode, a separator, and a negative electrode are repeatedly stacked includes a shrinkage film made of a material having a thermal shrinkage rate greater than that of the separator, the shrinkage film being shrunk in area at a specific temperature or more, wherein the shrinkage film is disposed instead of the separator at one or more positions between the positive electrode and the negative electrode so that, when the shrinkage film is shrunk by an increase of a temperature, the positive electrode and the negative electrode, which are adjacent to each other with the shrinkage film therebetween, partially contact each other to generate microcurrent.

Abstract: An embodiment resin composition for shielding electromagnetic waves, based on a total weight of the resin composition, includes 20 to 80 wt % of thermoplastic resin, 1 to 50 wt % of a conductive filler, and 0.1 to 30 wt % of an additive.

Abstract: A method and apparatus of platooning using Ultra Wideband (UWB)-based security authentication is provided. The platooning method performed by a platoon leader vehicle includes: selecting three coordinates present in a path along which the platoon leader vehicle moves, using an Ultra WideBand (UWB) sensor mounted on the platoon leader vehicle; determining a location of a surrounding vehicle using the three coordinates and an estimated distance between the UWB sensor and the surrounding vehicle; performing mutual authentication with the surrounding vehicle, based on the location of the surrounding vehicle; and performing platooning by including the surrounding vehicle in one or more platoon follower vehicles, when the mutual authentication is successful, wherein each of the platoon leader vehicle and the one or more platoon follower vehicles is provided with one or more UWB sensors.

Abstract: A method for preparing a sulfur-carbon composite including a step of pretreating a carbon material is provided. The method is capable of removing water and other impurities from the carbon material effectively, and the sulfur-carbon composite obtained by the method used as a positive electrode active material of a lithium-sulfur battery provides improved sulfur supportability and over-voltage performance of the lithium-sulfur battery, reduced initial irreversible capacity of the positive electrode active material, and improved output characteristics and life characteristics.

Abstract: In a refrigerator according to the present disclosure, by forming one or more protruding ribs of which at least portions extend in a horizontal direction along an outer perimeter surface of a storage part into which a roller part is inserted, it is possible to block or distribute a load acting on a drawer in a vertical direction as much as possible.

Abstract: A semiconductor device includes a redundancy control signal generation circuit configured to generate a redundancy control signal by determining whether a row address for an active operation has been repaired through a soft post package repair operation and determining whether a row hammer phenomenon has occurred with respect to the row address. The semiconductor device also includes a first selection address generation circuit configured to generate a first selection address for driving a sub word line or a redundancy word line from one of a repair address and a first internal address, based on the redundancy control signal. The semiconductor device further includes a second selection address generation circuit configured to generate a second selection address for driving the sub word line or the redundancy word line from one of a fixed address and a second internal address, based on the redundancy control signal.

Abstract: The present invention relates to a method for preparing an alkali metal ion conductive chalcogenide-based solid electrolyte, a solid electrolyte prepared thereby, and an all-solid-state battery comprising the same.

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: Provided is a pharmaceutical composition for treatment or prevention of macular degeneration and, more particularly, to a recombinant vector carrying a soluble VEGF receptor variant cDNA and a pharmaceutical composition including the same for treatment or prevention of macular degeneration. According to the present disclosure, age-related macular degeneration, which is a representative retinal disease causing blindness in adults, can be effectively treated and a prophylactic effect can be expected.

Abstract: A method, apparatus, and system for supplying power during the takeoff and landing of an Urban Air Mobility (UAM) aircraft is disclosed herein. A power supplying method is performed by a power supply system comprising a drone and a hub.

Abstract: A data processing system may include a storage device configured to: transmit, to an exterior, prediction information, for each power mode, that indicates a predicted time for performing a background operation for managing a memory device; and perform the background operation in an idle state of the storage device by switching to a corresponding power mode in response to a power mode control signal that is received in the idle state; and a control device configured to: determine a power mode of the storage device and an idle time for the idle state during which the background operation is performed based on the prediction information; transmit the power mode control signal to the storage device; and suspend, during the idle time, execution of a command processing request transmitted to the storage device.

Abstract: Provided are a vehicle transmission and a vehicle powertrain device including the same. The present disclosure includes a driving sun gear receiving a driving force transmitted from a motor, a first sun gear having the same rotating axis as the driving sun gear, a second sun gear inserted into the first sun gear and having the same rotating axis as the first sun gear, a planetary gear provided with a plurality of stages which respectively mesh with the driving sun gear, the first sun gear, and the second sun gear, and a carrier to which the planetary gear is coupled so as to be rotatable and into which the first sun gear and the second sun gear are inserted.

Abstract: An electronic device includes a display panel including a first region including a transmissive region and an element region and a second region spaced apart from the first region. The display panel includes a base layer, a circuit layer that is disposed on the base layer and that includes a pixel circuit and a barrier wall disposed in the element region, an element layer that is disposed on the circuit layer and that includes a plurality of light emitting elements and a pixel defining film, and an encapsulation layer disposed on the element layer. The pixel defining film includes a pixel defining pattern disposed in the element region and a pixel defining layer disposed in the second region, and a side surface of the pixel defining pattern is in contact with a side surface of the barrier wall.

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: A display device includes: a substrate including a first display area including a plurality of first pixel areas and a plurality of transmission areas, and a second display area including a plurality of second pixel areas; a light blocking layer disposed in the first and second display areas on the substrate, wherein an opening overlapping each of the transmission areas is defined through the light blocking layer, and the opening has a planar shape including at least two adjacent curves having different radii of curvature from each other; and a plurality of pixels respectively disposed in the first and second pixel areas on the light blocking layer and each including a light emitting element.

Abstract: In a spring-woven fabric, a manufacturing method for the spring-woven fabric, a flexible actuator using the spring-woven fabric, a wearable robot comprising the flexible actuator, and a massage device comprising the flexible actuator, the spring-woven fabric is configured to be contracted or relaxed by external power supply. The fabric includes a thermal response drive element and a wire. The thermal response drive element has a spring shape, and is configured to function as one of a warp and a weft. The wire is configured to function as the remaining of the warp and the weft.

Abstract: The present disclosure relates to a method of providing a proximal user networking service by means of a near-field communication network and a system therefor. Specifically, the present disclosure implements an environment in which, when an ad packet is broadcast using a certain host device, a guest device that receives the ad packet in the vicinity uploads relevant information to a service server, thereby allowing the host device to check guest devices that have been present in proximity thereto in the vicinity.

Abstract: The present disclosure relates to a method of operating an electronic device that provides a key agreement protocol. Specifically, the method may include obtaining at least one of an ID of a user, a first anonymous ID of the user corresponding to the ID of the user and a first temporary authentication value of the user, from a user terminal, obtaining at least one of an ID of an unmanned aerial vehicle (UAV), a first anonymous ID of the UAV corresponding to the ID of the UAV and a first temporary authentication value of the UAV, from the UAV, and in response to a key agreement request of the user terminal or a key agreement request of the UAV, intermediating key agreement between the UAV and the user terminal based on first information including information obtained from the user terminal and second information including information obtained from the UAV.

Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.