Abstract: The present disclosure discloses beamforming methods and apparatuses. According to an exemplary embodiment of the present disclosure, an antenna message generation deep neural network (DNN) and a beam characteristic generation DNN of a bipartite graph neural network (BGNN) having terminals as vertices on one side and APs as vertices on another side may be constructed.

Abstract: A method for evaluating physical properties of a melt-blown plastic resin, and, more specifically, to a novel method for evaluating physical properties are provided. When a particular plastic resin is processed by a melt-blown process, a stretching diameter value after the process of the plastic resin can be accurately derived from a physical property value measured using a specimen of the resin.

Abstract: A method for online contents registration is provided. The method includes registering a contents manuscript to a contents management server, registering a voice source generated by a voice actor to the contents management server based on the contents manuscript, providing the voice source to a user through the contents management server, registering video contents created by the user to the contents management server based on the voice source, and distributing profits generated based on consumption or distribution of the created video contents.

Abstract: A device for folding a seat may include: a lower arm stopper fixed to a predetermined radial position with respect to a reclining hinge shaft of a seatback as a center; a lock plate configured to rotate about a rotation shaft as a center while being hooked to the lower arm stopper in a process of reclining forward together with the seatback with respect to the reclining hinge shaft as the center; and a folding link limited to rotate by being hooked to the lock plate and configured to make folding rotation together with the seatback with respect to a folding hinge shaft, as a center, located at a part above the reclining hinge shaft, by being released from being hooked to the lock plate according to the rotation of the lock plate.

Abstract: A power supply and signal transmission device for a vehicle seat rail is provided. The device includes a contact-type power supply unit configured to supply power to an electrical device mounted on a seat, and a contact-type signal transmission unit configured to transfer seat drive control signals. The contact-type power supply unit and the contact-type signal transmission unit are directly mounted on the seat rail.

Abstract: The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.

Abstract: The present disclosure relates to a retina imaging method in which a light from a light source into two lights is dispersed, at least one eyeground image of the eyeball at a first magnification is obtained by adjusting the paths of the two lights incident on the eyeball, and a plurality of DIC images are obtained at a second magnification higher than the first magnification with respect to the retina of the entirety of the obtained at least one eyeground image by adjusting the paths of the two lights incident on the eyeball.

Abstract: A semiconductor package includes: a connection member having a first surface and a second surface opposing each other in a stacking direction of the semiconductor package and including an insulating member and a redistribution layer formed on the insulating member and having a redistribution via; a semiconductor chip disposed on the first surface of the connection member and having connection pads connected to the redistribution layer; an encapsulant disposed on the first surface of the connection member and encapsulating the semiconductor chip; a passivation layer disposed on the second surface of the connection member; UBM pads disposed on the passivation layer and overlapping the redistribution vias in the stacking direction; and UBM vias connecting the UBM pads to the redistribution layer through the passivation layer, not overlapping the redistribution vias with respect to the stacking direction, and having a non-circular cross section.

Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.

Abstract: The present disclosure relates to a polypropylene for injection having a high content of ultra-high molecular weight and excellent rigidity, and a method for preparing the same.

Abstract: A method for evaluating physical properties of a melt-blown plastic resin, and, more specifically, to a novel method for evaluating physical properties are provided. When a particular plastic resin is processed by a melt-blown process, a stretching diameter value after the process of the plastic resin can be accurately derived from a physical property value measured using a specimen of the resin.

Abstract: A camera module is provided. The camera module includes a lens barrel in which at least one lens is installed; and a lens holder to which the lens barrel is fixedly installed, wherein one of the lens holder and the lens barrel is provided with a coupling protrusion, and the other thereof is provided with a coupling groove into which the coupling protrusion is inserted, the lens holder is provided with a support portion that supports one end portion of the lens barrel, wherein the one end portion of the lens barrel is disposed between the coupling protrusion and the support portion, and the support portion of the lens holder elastically supports the lens barrel in an optical axis direction.

Abstract: A camera module includes: a first substrate on which an image sensor configured to convert an optical signal incident through a lens module into an electrical signal is disposed and a first connection terminal is disposed; a second substrate spaced apart from the first substrate and including a second connection terminal formed in a position facing the first connection terminal; and a terminal connector electrically connecting the first connection terminal and the second connection terminal to each other and configured to maintain a preset distance between the first substrate and the second substrate. In the camera module, the terminal connector includes: a connecting member including a first connection portion, a second connection portion, and a deformable portion; and a support member configured to maintain the preset distance between the first substrate and the second substrate.

Abstract: An optical assembly includes: a camera module; at least one actuator configured to move the camera module; and a connection substrate having one end connected to the camera module such that at least a portion of the connection substrate is configured to move along with movement of the camera module. The connection substrate includes a rigidity reduction portion reducing rigidity of the connection substrate in a portion of the substrate in which distortion or warpage occurs according to the movement of the camera module.

Abstract: This invention relates to a novel metallocene compound, a catalyst composition comprising the metallocene compound, and a method for preparing olefin polymer using the catalyst composition.

Abstract: A camera module includes: a housing defining an internal space; a first lens module disposed in the internal space to move along an optical axis direction, the first lens module including at least one first bearing member; a second lens module disposed in the internal space to move along the optical axis direction, the second lens module including at least one second bearing member; a shaft disposed in the housing and supporting a first side of the first lens module and contacting the at least one first bearing member and supporting a first side of the second lens module and contacting the at least one second bearing member; at least one first ball member supporting a second side of the first lens module; and at least one second ball member supporting a second side of the second lens module.

Abstract: A lens module is provided. The lens module includes a first driving unit configured to move a first lens barrel along an optical axis direction; and a second driving unit configured to move a second lens barrel along the optical axis direction, wherein the second driving unit is disposed between the first lens barrel and the second lens barrel and is configured to change a distance between the first lens barrel and the second lens barrel.

Abstract: A device for folding a seat may include: a lower arm stopper fixed to a predetermined radial position with respect to a reclining hinge shaft of a seatback as a center; a lock plate configured to rotate about a rotation shaft as a center while being hooked to the lower arm stopper in a process of reclining forward together with the seatback with respect to the reclining hinge shaft as the center; and a folding link limited to rotate by being hooked to the lock plate and configured to make folding rotation together with the seatback with respect to a folding hinge shaft, as a center, located at a part above the reclining hinge shaft, by being released from being hooked to the lock plate according to the rotation of the lock plate.

Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.

Abstract: A method for online contents registration is provided. The method includes registering a contents manuscript to a contents management server, registering a voice source generated by a voice actor to the contents management server based on the contents manuscript, providing the voice source to a user through the contents management server, registering video contents created by the user to the contents management server based on the voice source, and distributing profits generated based on consumption or distribution of the created video contents.