Abstract: A negative active material composite includes a core and a coating layer surrounding the core. The core includes crystalline carbon, amorphous carbon, and silicon nanoparticles, the coating layer includes amorphous carbon, and an adjacent distance between the silicon nanoparticles is less than or equal to about 100 nm.

Abstract: The present invention relates to a method for preparing a conjugated diene-based polymer, characterized in using a dimer acid saponified material as an emulsifier in a polymerization initiation step and injecting a monomer and the emulsifier in three or more installments after initiating polymerization, and the conjugated diene-based polymer prepared by the preparation method of the present invention has excellent physical properties such as impact strength and reflection haze.

Abstract: According to at least one aspect, the present disclosure provides a robot system for automatically assembling a modular component and an assembly target, comprising: an assembly robot including a first manipulator, an assembly tool coupled to the first manipulator and configured to assemble the modular component and the assembly target, and a first camera configured to capture images in a direction in which the assemble tool faces; a loading robot including a second manipulator and a gripper coupled to the second manipulator and configured to grip the modular component; and a control device configured to control the assembly robot and the loading robot.

Abstract: A negative active material for a rechargeable lithium battery includes a composite of silicon and crystalline carbon, wherein the silicon has an average particle diameter (D50) of about 10 nm to about 150 nm, and the crystalline carbon has an average particle diameter (D50) of about 5 ?m to about 20 ?m, and an aspect ratio of about 4 to about 10.

Abstract: A continuous hologram recording method is provided. A holographic printer according to an embodiment of the present invention comprises: a light source that emits light; a modulator that modulates the light emitted from the light source, to generate a holographic fringe pattern in units of hogels; a stage having placed thereon a hologram recording medium on which a holographic fringe pattern generated by the modulator is to be recorded in units of hogels; a first driving unit that moves the position of the stage in a first axial direction by using a first-type motor; and a second driving unit that moves the position of the stage in a second axial direction by using a second-type motor different from the first type.

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (ISi(111)/ISiC(111)) of a peak intensity (ISi(111))) at a Si (111) plane relative to a peak intensity (ISiC(111)) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuK? ray.

Abstract: Provided is a cognitive experiment method for change in periphery region image quality for parameter determination of a foveated hologram. According to an embodiment, a cognitive experiment method for determining foveated image parameters includes: generating a foveated image which includes a foveal region and a periphery region while reducing image quality regarding the periphery region; displaying the generated foveated image; receiving an input of a response to image quality of the periphery region from a subject; and collecting information regarding appropriate image quality of the periphery region, based on the response inputted by the subject. Accordingly, in applying a foveated hologram generation algorithm for real-time reproduction, various parameters such as a boundary between a foveal region image and a periphery region image in a foveated hologram, and a degree of quality degradation of the periphery region image may be appropriately determined through a cognitive experiment.

Abstract: A vehicular air conditioning system having an air inlet and an air outlet includes a first heating heat exchanger configured to heat air introduced through the air inlet, a second heating heat exchanger configured to heat air passing through the first heating heat exchanger or bypassing the first heating heat exchanger, and a control part configured to control the first heating heat exchanger and the second heating heat exchanger according to a passenger room heating load so that when the heating load decreases to below a preset value in a heating mode in which the first heating heat exchanger and the second heating heat exchanger are operated simultaneously, the first heating heat exchanger is first turned off and only the second heating heat exchanger is operated.

Abstract: A holographic printer using a vibration-free mechanical shutter is provided. A holographic printer, according to an embodiment of the present invention, comprises: a light source which emits light; a modulator which modulates the light emitted from the light source to generate a holographic fringe pattern in a hogel unit; a stage on which a holographic recording medium, on which a holographic fringe pattern generated by the modulator is to be recorded in a hogel unit, is placed; a driving part which moves a position of the stage in a hogel unit; and a shutter which periodically exposes, to the holographic recording medium, object light generated by the holographic fringe pattern generated by the modulator, wherein the shutter includes a rotating plate having a slit that exposes the object light by means of the holographic fringe pattern, and a motor rotating the rotating plate.

Abstract: Provided is a holographic printer using a mechanical shutter having adjustable exposure time and no vibration. The holographic printer according to an embodiment of the present invention comprises: a light source; a modulator for generating a holographic fringe pattern in hogel units; a stage on which a hologram recording medium is placed; a driving part for moving the position of the stage in hogel units; and a shutter for periodically exposing an object light due to the holographic fringe pattern generated by the modulator to the hologram recording medium. The shutter comprises: a rotation plate having formed therein an arc-shaped opening which exposes the object light due to the holographic fringe pattern; and a motor for rotating the rotation plate. Therefore, the exposure period and exposure time of the shutter can be variously adjusted by adjusting the rotational state of the rotation plates having the arc-shaped opening formed therein.

Abstract: A method for predicting an impact point is proposed. The method may include acquiring detection information related to a flying object detected by a radar linked to the impact point predicting device through a communication interface, acquiring prior information including information about an enemy unit, a friendly unit, and a friendly facility. The method may include determining whether the detected flying object is a flying object capable of non-linear maneuver based on the detection information and the prior information, using a neural network model pre-trained using training data so that the neural network model determines whether the flying object is the flying object capable of non-linear maneuver based on detection information and prior information and determining an impact point based on the detection information, the prior information, and a determining result of the neural network model on whether the detected flying object is the flying object capable of non-linear maneuver.

Abstract: The technology is directed to diagnosing a battery by diagnosing an abnormality in a battery cell using state of health (SOH). The abnormality in a battery cell is diagnosed based on a deviation value obtained by calculating a difference between a SOH value of a target battery cell and an average value of SOH values of the plurality of battery cells in the battery.

Abstract: A hologram generation and streaming method and system using multi-PCs are provided. A hologram streaming service system according to an embodiment of the present invention comprises: a hologram generation server for generating a hologram streaming image by using multiple computers; and a hologram player for playing the hologram streaming image generated in the hologram generating server. Therefore, distributed processing of the multi-PCs is used to generate a hologram at high speed so that a service can be streamed without delay in real time even for a high-resolution hologram.

Abstract: A method and a system for foveated hologram rendering are provided. A method for foveated hologram rendering according to an embodiment of the present invention comprises: tracking a user's line of sight, rendering a hologram having a first resolution in the user's central line of sight, and rendering a hologram having a resolution lower than the first resolution in the user's peripheral line of sight. Accordingly, a hologram content with high quality and high resolution can be generated and reproduced at high speed through foveated hologram rendering in which holograms having different resolutions are rendered in the user's central line of sight and peripheral line of sight.

Abstract: A battery management system includes a sensing circuit to acquire a state parameter of each of a plurality of battery cells connected in series; and a control circuit to determine, for each battery cell, a first state of charge (SOC) change which is a difference between a first SOC at a first charge time and a second SOC at a second charge time by applying a SOC estimation algorithm to the state parameter acquired during charging. The control circuit determines a reference factor by applying a statistical algorithm to the first SOC changes of at least two of the plurality of battery cells. The control circuit detects an internal short circuit fault in each battery cell based on the first SOC change of each battery cell and the reference factor.

Abstract: A negative active material for a rechargeable lithium battery includes a composite of silicon and crystalline carbon, wherein the silicon has an average particle diameter (D50) of about 10 nm to about 150 nm, and the crystalline carbon has an average particle diameter (D50) of about 5 ?m to about 20 ?m, and an aspect ratio of about 4 to about 10.

Abstract: In embodiment, a binder composition includes a multifunctional compound containing three or more functional groups, a first bifunctional epoxy resin, and a second bifunctional epoxy resin. The second bifunctional epoxy resin can have a weight average molecular weight greater than a weight average molecular weight of the first bifunctional epoxy resin, and a mass ratio of the first bifunctional epoxy resin and the second bifunctional epoxy resin is in a range from 0.45:1 to 7.0:1. In an embodiment, an epoxy-based cured product includes such binder composition. And in an embodiment, a light emitting layer includes such epoxy-based cured product.

Abstract: A semiconductor device is described, in which a multi-bridge is packaged in a substrate to improve a small form factor. The semiconductor device comprises a substrate including a first surface and a second surface, which face each other, and defining a first cavity passing through the first surface and the second surface, a first redistribution layer structure formed on the first surface of the substrate, a second redistribution layer structure formed on the second surface of the substrate, a connection terminal disposed on the second redistribution layer structure, and a multi-bridge packaged in the first cavity, including a first bridge facing the first surface and electrically connected to the first redistribution layer structure and a second bridge facing the second surface and electrically connected to the second redistribution layer structure.

Abstract: A display device includes a first substrate, on which first to third sub-pixel areas spaced apart from each other and a non-emission area corresponding to a boundary of the first to third sub-pixel areas are defined, a display element layer including a light emitting element disposed in each of the first to third sub-pixel areas on the first substrate, and a color-filter layer disposed on the display element layer. The color-filter layer includes a base layer, a first color filter disposed on the base layer and corresponding to the first sub-pixel area, a second color filter disposed on the base layer and corresponding to the second sub-pixel area, a first planarization layer covering the first color filter and the second color filter, a third color filter disposed on the first planarization layer and corresponding to the third sub-pixel area, and a second planarization layer covering the third color filter.

Abstract: Provided is a hologram printing method and apparatus using a hologram medium light efficiency map. A hologram printing method according to an embodiment emits a laser to a hologram medium, acquires an image by photographing light diffracted from the hologram medium, generates a light efficiency map of the hologram medium from the acquired image, and records hogels on the hologram medium by referring to the generated light efficiency maps of the hologram medium. Accordingly, light efficiency is measured on each hogel area, and hologram printing is performed by adjusting an intensity of a laser of each wavelength according to a hogel, so that uniformity of luminance and color of a hologram printing result can be enhanced.