Abstract: A positive electrode active material, a method of preparing the same, a positive electrode and a rechargeable lithium battery including the same are provided. The positive electrode active material includes a core particle including lithium nickel-manganese-aluminum-based composite oxide and a coating layer disposed on a surface of the core particles and containing aluminum and yttrium, wherein a nickel content (e.g., amount) in the core particle is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the positive electrode active material, and an aluminum content (e.g., amount) of the coating layer is about 0.1 mol % to about 2 mol %, and a yttrium content (e.g., amount) of the coating layer is about 0.05 mol % to about 1 mol %, each based on 100 mol % of the total metal excluding lithium in the positive electrode active material.

Abstract: Disclosed is a method of rapidly and precisely predicting lithium ion conductivity of a solid electrolyte. The method may include simulating a crystal structure of the solid electrolyte and creating training sets based on the crystal structure for machine learning; calculating a potential specific to the simulated crystal structure by machine learning using the training sets; and predicting the lithium ion conductivity of the solid electrolyte from the potential using molecular dynamics simulations.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: Disclosed are an airbag integrated moving display and a control method where the airbag-integrated display includes a display movable to a forward or rearward position according to a driving mode of a vehicle, and an airbag mounted to the rear of the display and being configured to move along with a movement of the display, and vary a level of inflation of the airbag based on at least one of a position of the display or a distance from a driver of the vehicle.

Abstract: An image encoding/decoding method and apparatus is provided. The method of decoding an image includes decoding at least one of prediction mode information of a neighbor block of a current block and length information of the current block, deriving an intra prediction mode of the current block into a predetermined mode using the decoded information, and reconstructing the current block based on the intra prediction mode of the current block.

Abstract: A constant velocity joint for a vehicle. The constant velocity joint includes: an axle housing fixed to a knuckle by a hub bearing, and a joint assembly inserted into the axle housing to transmit power from a shaft to the axle housing through a plurality of joint balls. In particular, the axle housing includes an extension portion which is extended from an end portion of the axle housing in a radial direction of the axle housing, and the extension portion provides a pressing force to an inner race of the hub bearing in an axial direction of the axle housing. The constant velocity joint further includes a boot surrounding an outer side of the extension portion and coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.

Abstract: A battery charging device includes: a bidirectional charger having a charge and discharge port and a discharge port and connected to a battery, wherein the bidirectional charger includes a power factor correction circuit having first, second, and third legs; and a controller. The controller is configured to switch the first and third legs so that the bidirectional charger outputs a power of the battery to the charge and discharge port when a first battery discharge mode is performed, and to switch the second and third legs so that the bidirectional charger outputs the power of the battery to the discharge port when a second battery discharge mode is performed.

Abstract: Disclosed are an anode for all-solid-state batteries which has a coating layer located on an anode current collector and including pores formed by entangling metal nanowires, and a method of manufacturing the same.

Abstract: A light-water reactor nuclear fuel rod loading apparatus, which comprises a spacer grid holder and a loading power device installed with a traction module configured to reciprocally move toward the spacer grid holder. The loading apparatus further comprises a hollow cladding tube sample and a pulling bar comprising one end part and an opposite end part. The one end part passing in use through a cell of a spacer grid held by the spacer grid holder and configured to couple to the hollow cladding tube sample. The opposite end part is coupled to the traction module. The loading apparatus further comprises: a measuring device installed on the pulling bar and configured to measure loading force of the traction module loading the pulling bar; a holder cap; and a holder comprising an end part configured to in use pass through the cladding tube sample and couple to the holder cap.

Abstract: In order to implement the foregoing object, an exemplary embodiment of the present disclosure discloses a video retrieval method performed by a computing device. The video retrieval method may include: receiving retrieval query data for one or more video data; generating a retrieval query vector based on the received retrieval query data; comparing the retrieval query vector with a plurality of video retrieval vectors each representing target retrieval video data segmented based on key frame information; and selecting one or more target retrieval video data by the result of the comparison between the retrieval query vector and the plurality of video retrieval vectors.

Abstract: Provided provides a system for cleaning a hull of a ship, comprising: a cleaning robot for cleaning outer surface of a hull of a ship and introduce seawater including contaminants removed from the outer surface of the hull during cleaning process to the inside of the cleaning robot; and a purifying device connected to the cleaning robot via a hose member, for filtering and purifying the seawater introduced together with the contaminants from the cleaning robot via the hose member.

Abstract: In an embodiment, a semiconductor die includes a substrate, an interlayer insulating layer under a front-side surface the substrate, a horizontal metal interconnection in the interlayer insulating layer, a front-side pad under a lower surface of the interlayer insulating layer, a front-side bump structure under a lower surface of the front-side pad, a through-electrode vertically passing through the substrate, a back-side insulating layer over the back-side surface of the substrate, a first back-side metal plate layer over the back-side insulating layer, a back-side passivation layer over the back-side insulating layer and covering the first back-side metal plate layer, and a back-side bump structure over the through-electrode and the back-side passivation layer.

Abstract: An occupant customized seat control apparatus and method are provided. The method includes recognizing, by a camera, an occupant that approaches a vehicle, controlling a display to move based on a height of the recognized occupant, determining whether the recognized occupant is an infant, and when the recognized occupant is determined to be an infant, determining whether a booster seat needs to be controlled based on the height of the recognized occupant, and when at least one of the booster seat, a footrest, or the combination thereof needs to be controlled, converting a value of the recognized height into a booster seat actuator movement amount value, and controlling the booster seat to move based on the converted actuator movement amount value.

Abstract: The present invention relates to an optical property storage device and a system using the same. The device according to an exemplary embodiment of the present invention comprises: a light transistor in which the conductance between a source electrode and a drain electrode changes in accordance with optical properties of color temperature and illumination of incident light; and a variable resistance memory device of a second terminal in which a first electrode is electrically connected to any one electrode from among the source and drain electrodes of the light transistor, and which stores a conductance changing in accordance with the changed conductance of the light transistor.

Abstract: A vehicle battery charging system includes a main battery, an auxiliary battery, an integrated converter that includes a high voltage charging device that supplies power to the main battery and a low voltage charging device that supplies power to the auxiliary battery, a solar cell that converts sunlight into electrical energy, a solar cell converter that converts an output of the solar cell into a voltage corresponding to a voltage of the auxiliary battery and outputs the converted voltage to the auxiliary battery, and a switching device that switches between the integrated converter and external power and the integrated converter and the solar cell, wherein the switching device connects the integrated converter and the solar cell in a solar cell only charging mode in which the auxiliary battery is charged by the solar cell.

Abstract: A substrate processing apparatus includes: a nozzle unit configured to discharge a processing liquid to a substrate; a pipe connected to the nozzle unit and a processing liquid supply unit supplying the processing liquid; a charge amount control unit disposed at the pipe, including a filter unit charged with positive charges or negative charges, and including at least one of a control valve, controlling a flow rate of the processing liquid passing through an inside of the filter unit, and a power supply unit, applying a voltage to the filter unit, to control a charge amount of the processing liquid; and a control unit connected to the charge amount control unit.

Abstract: The present disclosure provides a method for partially reducing vanadium pentoxide (V2O5) using an ammonia solution, wherein ammonia is used to convert vanadium pentoxide (V2O5) powder to ammonia vanadate (NH4VO3), which is an intermediate material, after which the ammonia vanadate is heated under normal or reduced pressure in a nitrogen or argon atmosphere and then maintained for a certain period of time to partially reduce the vanadium pentoxide and thereby produce vanadium dioxide (VO2) powder, and vanadium dioxide (VO2) powder produced thereby.

Abstract: The present invention relates to a transmittance-variable optical laminate, a method for manufacturing same, a smart window comprising same, and a vehicle and building window or door employing same, the optical laminate comprising: a first polarizing plate including a first polarizer and a polarization rotation layer; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate including a second polarizer and a retardation layer, and facing the first polarizing plate; a second transparent conductive layer formed on one surface of the second polarizing plate, and facing the first transparent conductive layer; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, wherein at least one of the first transparent conductive layer and the second transparent conductive layer is formed to come into direct contact with any one of the first polarizing plate and the second polarizing plate, the

Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.