Abstract: A vehicle body structure capable of modular assembly includes a chassis frame extending from a body frame forming a vehicle body. A corner module is fastened to a side portion of the chassis frame. The corner module includes a knuckle fastened to a wheel, an upper arm positioned between a top end portion of the knuckle and a module bracket mounted on the chassis frame, and an elastic member mounted between the module bracket and a bottom end portion of the knuckle.

Abstract: The present specification relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a positive electrode active material for a lithium secondary battery with excellent electrical conductivity and energy density, a method of preparing the same, and a positive electrode and a secondary battery including the same.

Abstract: Provided is a method of preparing a positive electrode active material for a sodium secondary battery, including: a) inputting a sodium composite transition metal oxide and a water washing solution into a reactor and stirring the reactants to dissolve residual sodium on the surface of the sodium composite transition metal oxide in the water washing solution; b) inputting cobalt salt into the reactor and performing stirring to co-precipitate cobalt hydroxide onto the sodium composite transition metal oxide particles; and c) heat-treating the sodium composite transition metal oxide particles on which the cobalt hydroxide is formed to form a cobalt coating layer on the particles.

Abstract: The present specification relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a positive electrode active material for a lithium secondary battery with excellent electrical conductivity and energy density, a method of preparing the same, and a positive electrode and a secondary battery including the same.

Abstract: A non-annealed hot-rolled ferritic stainless steel sheet with excellent impact toughness includes, in percent (%) by weight of the entire composition, C: more than 0 and 0.03% or less, Si: 0.1 to 0.5%, Mn: 1.5% or less, P: 0.04% or less, Cr: 10.5 to 14%, Ni: more than 0 and 1.5% or less, Ti: 0.01 to 0.5%, Cu: more than 0 and 1.0% or less, N: more than 0 and 0.015% or less, Al: 0.1% or less, the remainder of iron (Fe) and other inevitable impurities, and satisfies the following equation (1), and the average grain size of the cross-sectional microstructure in the direction perpendicular to the rolling direction is 60 ?m or less. (1500?(1001.5*C+950.6*Mn+1350.5*Ni+395.6*Cu?0.7*Si?1.0*Ti?0.1*Cr?1.0*P?1.0*Al+1020.5*N)?2200).??(1).

Abstract: A method for filtering a point cloud of a four-dimensional radar including the steps in which a data processing device receives an input of raw data of a four-dimensional radar, generates a tensor including position and Doppler information from the raw data, extracts a radar point cloud from the tensor on the basis of a threshold, and removes an outlier from the radar point cloud. A range is calculated further using Doppler information of points.

Abstract: The present invention relates to a sagger for firing a precursor material, and more specifically, to a sagger having a space internally provided to load a precursor material. When used to fire a precursor material, the sagger is capable of not only suppressing the generation of by-products but also enhancing the durability of the main body.

Abstract: Provided herein are a method for modulation of a variable binary offset carrier (VBOC) having a discrete time-variant frequency and a satellite navigation signal generator using the same. The method for modulation of a VBOC having a discrete time-variant frequency may comprise: generating navigation message data; generating a carrier; generating a VBOC subcarrier; generating a pseudo-random code; synthesizing the pseudo-random code and the VBOC subcarrier; and synthesizing a synthesized signal of the pseudo-random code and the VBOC subcarrier, the carrier, and the navigation message data.

Abstract: Aspects of the present disclosure are directed to a display device having a repairable touch line. In one aspect, a display device includes a display panel including a plurality of touch blocks each having a touch electrode; a dummy region at one side of the display panel; a plurality of touch lines connected to the plurality of touch blocks and configured to apply a touch signal to the plurality of touch blocks; a repair line in the dummy region; and a dummy pattern in the dummy region.

Abstract: An apparatus for controlling a vehicle includes a processor, a display, a camera configured to obtain an image of the vehicle, a side mirror controller configured to control a side mirror of the vehicle, and a steering controller configured to control steering of the vehicle, wherein the processor is configured to: display, an image of the vehicle, a first line object indicating a drawbar, wherein the drawbar connects to the vehicle via a coupler, and a second line object associated with steering of the vehicle, based on an input to the side mirror controller, rotate the second line object around one of two endpoints of the second line object, wherein the one of two endpoints and the coupler are superimposed on each other, and control, based on the rotated second line object, the steering such that the first line object and the second line object are superimposed on each other.

Abstract: The present invention relates to a method for operating a massage apparatus for pulling a user's waist, the method comprising: a step in which a control unit controls a back frame so that the back frame reclines backward; a step in which the control unit controls a leg massage part so that the leg massage part is lifted up; a step in which the position of a massage module is controlled so that a massage ball is positioned on the user's waist; and a step in which the massage ball is moved in a first direction or a second direction and air is injected into a waist airbag to pull the user's waist.

Abstract: A vehicle body structure capable of modular assembly includes a chassis frame extending from a body frame forming a vehicle body. A corner module is fastened to a side portion of the chassis frame. The corner module includes a knuckle fastened to a wheel, an upper arm positioned between a top end portion of the knuckle and a module bracket mounted on the chassis frame, and an elastic member mounted between the module bracket and a bottom end portion of the knuckle.

Abstract: Provided is a massage device including: a body massage unit which massages the back or thigh of a user and includes a receiving portion of a leg massage unit for receiving the leg massage unit; a full-length box which supports the body massage unit and includes a power supply unit and a control unit; and the leg massage unit which massages the legs of the user and rotates around a rotary shaft with respect to the body massage unit, wherein the receiving portion of the leg massage unit includes a first detection sensor, wherein the first detection sensor is arranged toward the leg massage unit and detects whether there is an object in the receiving portion of the leg massage unit, the leg massage unit includes a posture sensor for measuring an angle between the leg massage unit and a seat portion, and the control unit controls the operations of the body massage unit and the leg massage unit.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. The disclosure relates to a method and an apparatus for enhancement of self-interference channel estimation performance to secure self-interference removal performance in full-duplex (FD) communication and, more specifically, to a method and an apparatus for scheduling a transmission resource for enhanced self-interference channel estimation in the FD communication.

Abstract: Provided is a massage device capable of forward and backward tilting, and the massage device may include: a main frame which supports at least a region of a user's body; a base frame which is disposed under the main frame and supports the main frame; a tilting frame which is disposed between the main frame and the base frame and is connected to tilting shafts provided at the front of the base frame to extend in the lateral direction; and a tilting means which is disposed between the base frame and the tilting frame and tilts the tilting frame around the tilting shafts.

Abstract: A wheel cover includes a fixing unit fixed to a wheel of a vehicle, a variable unit coupled to and supported by the fixing unit and configured for being opened and closed, a first power unit configured to apply a first force acting on the variable unit, wherein the force changes depending on temperature, and a second power unit configured to apply a second force acting on the variable unit, wherein the second force changes depending on a wheel speed, wherein the variable unit is opened or closed depending on the first force generated by the first power unit and the second force generated by the second power unit.

Abstract: Aspects of the present disclosure are directed to a display device having a repairable touch line. In one aspect, a display device includes a display panel including a plurality of touch blocks each having a touch electrode; a dummy region at one side of the display panel; a plurality of touch lines connected to the plurality of touch blocks and configured to apply a touch signal to the plurality of touch blocks; a repair line in the dummy region; and a dummy pattern in the dummy region.

Abstract: The present disclosure relates to a massage device including a seat frame supporting user's body, a back frame connected to the seat frame to be rotatable, a rail extending along the seat frame and the back frame and connecting the seat frame and the back frame to each other, and a support unit connected to the seat frame and the back frame and supporting the rail.

Abstract: The present invention relates to a positive electrode active material, and a lithium secondary battery using a positive electrode including the same. More particularly, the present invention relates to a positive electrode active material that has increased efficiency in the diffusion of lithium ions and/or charges and increased structural stability by locally forming regions with different concentrations of an arbitrary transition metal in a primary particle, and a lithium secondary battery using a positive electrode including the same.

Abstract: Proposed is a slim-type heat management system for an electric vehicle, wherein implementation of various heat management modes may be easily accomplished by using a minimum number of parts including two three-way expansion valves and the like, wherein the various heat management modes include a heat pump dehumidification mode, a dehumidification max mode, and the like, which are for defogging, in addition to an indoor cooling mode, a battery cooling mode, and a heat pump mode for heating. Accordingly, the system is capable of being usefully applied to an electric vehicle being small and an electric vehicle having priority of profitability over performance.