Abstract: A compound Chemical Formula 1: wherein: each X is independently N, CH, or CD, provided that two or more of X are N, L is a single bond, or a substituted or unsubstituted C6-60 arylene, Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl, Ar3 and Ar4 are each independently phenyl that is unsubstituted or substituted with at least one deuterium, any one of Ar1 to Ar4 is substituted with cyano, HAr is pyrimidinyl which is unsubstituted or substituted with 1 to 3 substituent groups each independently selected from among deuterium, a substituted or unsubstituted C1-60 alkyl, and a substituted or unsubstituted C6-60 aryl; triazinyl which is substituted with two substituted or unsubstituted C6-60 aryls; or quinazolinyl substituted with one substituted or unsubstituted C6-60 aryl, and the other substituents are as described in the specification, and an organic light emitting device comprising the same.

Abstract: Disclosed are a robot that may allow a user to monitor a state and a posture of the user in real time to perceive a state of health and the posture and receive useful contents that are helpful, and effectively help the health and correction of the posture of the user, and a real-time posture monitoring method.

Abstract: A display device includes: a substrate; a first electrode and a second electrode on the substrate, extended in a first direction and spaced apart from each other; a first insulating layer on the first electrode and the second electrode; a light-emitting element on the first insulating layer and between the first electrode and the second electrode; and a first connection electrode connected to a first end of the light-emitting element and a second connection electrode connected to a second end of the light-emitting element, wherein the first insulating layer overlaps with the light-emitting element and comprises trench portions comprising a plurality of trenches.

Abstract: A semiconductor device includes: a lower interlayer insulating layer; first and second active patterns on the lower interlayer insulating layer; a gate electrode on the first and second active patterns; a first source region on a first side of the gate electrode; a second source region on a second side of the gate electrode; a third source region on the first side of the gate electrode; a drain region on the second side of the gate electrode; a first contact adjacent to the gate electrode, and connected to the first and third source regions; a second contact adjacent to the gate electrode, and connected to the second source region; a third contact adjacent to the gate electrode, and connected to the drain region; a lower wiring layer inside the lower interlayer insulating layer; and a through via connecting the lower wiring layer with the first contact.

Abstract: An apparatus for loading and unloading cargo, capable of loading cargo while distributing the weight of the cargo and unloading the cargo regardless of the loading order of the cargo, is provided. The apparatus for loading and unloading cargo may include: a base portion; a rail installed on the base portion; a plurality of movable plates disposed on the rail, supporting the cargo, and moving along the rail; and a raising-lowering portion connected between the base portion and a body so that the base portion can be raised and lowered.

Abstract: A display substrate includes a gate metal pattern including a gate line extending in a first direction, a gate electrode electrically connected to the gate line and a storage line, a data metal pattern including a data line extending in a second direction crossing the first direction, a source electrode electrically connected to the data line and a drain electrode spaced apart from the source electrode, an organic layer disposed on the data metal pattern, and a repair hole formed through the organic layer and exposing a portion of the gate metal pattern or a portion of the data metal pattern.

Abstract: To achieve the objective of the present invention, a method for operating a showcase system having a transparent display panel according to one embodiment of the present invention comprises the steps of: receiving a touch input for a predetermined area of a transparent display panel; displaying an image keyboard; receiving product information; and connecting information on the predetermined area and the product information to store the connected information, or the invention comprises the steps of: recognizing a predetermined product; receiving a touch input for a predetermined area of a transparent display panel; and connecting information on the predetermined area and information on the predetermined product to store the connected information.

Abstract: A display substrate includes a gate metal pattern including a gate line extending in a first direction, a gate electrode electrically connected to the gate line and a storage line, a data metal pattern including a data line extending in a second direction crossing the first direction, a source electrode electrically connected to the data line and a drain electrode spaced apart from the source electrode, an organic layer disposed on the data metal pattern, and a repair hole formed through the organic layer and exposing a portion of the gate metal pattern or a portion of the data metal pattern.

Abstract: A showcase including a plurality of frames including a front frame and an upper frame defining a showroom; a transparent display panel placed at the front frame among the frames, the transparent display panel displaying an image; and a light source unit configured to emit light into the showroom, wherein the light source unit is located between an opaque upper portion of the front frame surrounding the transparent display panel and the upper frame, and wherein the light source unit includes a plurality of lamps at each corner of the showcase and is obliquely arranged in a direction from the front frame to the upper frame, and positions of the plurality of lamps are increased in height with an increasing distance from the front frame to the upper frame.

Abstract: According to an embodiment of the present disclosure, a shoe for a patient with a cast in a foot comprises a bottom plate supporting the foot, a cover piece covering the foot and having a first attaching means at a portion corresponding to an instep of the foot, and a protection piece extending from a front portion of the bottom plate where toes of the foot are positioned, bent to cover the toes, and having a second attaching means at a position corresponding to the first attaching means, the second attaching means attached to the first attaching means, wherein the bottom plate, the cover piece, and the protection piece are formed as a single body.

Abstract: The present invention relates to a showcase including a transparent display panel. The showcase according to one embodiment of the present invention comprises: frames which form a showroom; a transparent display panel which is disposed on a front surface frame of the frames and displays an image; and a light source unit which provides light to the inside of the showroom, and is disposed to incline in a direction from the front surface frame to an upper surface frame of the frames. Accordingly, the shadow on a product disposed in the showcase can be reduced.

Abstract: A method for producing a brake disc comprising a coupling part having a centered through-hole, a friction part on the periphery of the coupling part, and a wall part connecting the coupling part and the friction part, including: producing a mold in which the coupling part, the wall part, and the friction part are integrally formed, wherein a gap prevents molten metal from overflowing between the wall part and the coupling part, interface is formed on the periphery of the coupling part, an overflow is provided outside the wall part opposite the gap; a first injection process of injecting a first material to form the friction part; and a second injection process of injecting a second material to form the coupling part, a mold for producing the brake disc, and the brake disc.

Abstract: To achieve the objective of the present invention, a method for operating a showcase system having a transparent display panel according to one embodiment of the present invention comprises the steps of: receiving a touch input for a predetermined area of a transparent display panel; displaying an image keyboard; receiving product information; and connecting information on the predetermined area and the product information to store the connected information, or the invention comprises the steps of: recognizing a predetermined product; receiving a touch input for a predetermined area of a transparent display panel; and connecting information on the predetermined area and information on the predetermined product to store the connected information.

Abstract: Disclosed is a brake disk. The brake disk includes a friction part having a coupling aperture within a center thereof and a plurality of recessed portions repeatedly formed at a predetermined interval along an inner circumference of the coupling aperture, in which bevels protrude from inner surfaces of the recessed portions, respectively. The bevels are tapered along upper and lower sides thereof toward protruding centers. The brake disk also includes a hub having a plurality of protrusions inserted into and attached to the recessed portions when coupled to and received in the coupling aperture of the friction part via a cast-bonding method, along a circumference thereof.

Abstract: Disclosed is a brake disk. The brake disk includes a friction part having a coupling aperture within a center thereof and a plurality of recessed portions repeatedly formed at a predetermined interval along an inner circumference of the coupling aperture, in which bevels protrude from inner surfaces of the recessed portions, respectively. The bevels are tapered along upper and lower sides thereof toward protruding centers. The brake disk also includes a hub having a plurality of protrusions inserted into and attached to the recessed portions when coupled to and received in the coupling aperture of the friction part via a cast-bonding method, along a circumference thereof.

Abstract: Disclosed herein is a brake disk. More specifically, the brake disk includes a friction part, a hat part and a plurality of fasteners. The friction part includes a coupling aperture formed at a center thereof, a coupling portion formed along an inner side of the coupling aperture to have a predetermined thickness and a plurality of connecting bores formed in the coupling portion so that the connecting bores are spaced apart from each other and located along a circumference of the coupling portion. The hat part is inserted into the coupling aperture of the friction part and includes a coupling flange corresponding to the coupling portion of the friction part. The coupling flange includes a plurality of connecting bores that correspond to the plurality of connecting apertures. The plurality of fasteners are each horizontally inserted into the connecting apertures and bores to couple the friction part with the hat part.

Abstract: A method for producing a brake disc comprising a coupling part having a centered through-hole a friction part on the periphery of the coupling part, and a wall part connecting the coupling part and the friction part, including: producing a mold in which the coupling part, the wall part, and the friction part are integrally formed, wherein a gap prevents molten metal from overflowing between the wall part and the coupling part, interface is formed on the periphery of the coupling part, an overflow is provided outside the wall part opposite the gap; a first injection process of injecting a first material to form the friction part; and a second injection process of injecting a second material to form the coupling part, a mold for producing the brake disc, and the brake disc.

Abstract: An apparatus and a method for detecting a leakage of heavy water in a nuclear reactor system includes: a diode laser that injects a generated laser beam to a test sample placed in a light absorption cell; a vacuum pump adjusts a degree of vacuum in the light absorption cell; a test sample introduction unit gathers an air test sample from a location with a high possibility of a leakage of heavy water or a light water test sample from a secondary side of a steam generator and transfers the sample to the light absorption cell; an optical detector detects the laser beam which has passed through the light absorption cell; and a microprocessor controls the operation of the diode laser, the vacuum pump, the test sample introduction unit, and the optical detector, receives a detect signal from the optical detector, and analyzes an absorption spectrum signal.

Abstract: An apparatus and a method for detecting a leakage of heavy water in a nuclear reactor system includes: a diode laser that generates a laser beam and injects the generated laser beam to a test sample placed in a light absorption cell; the light absorption cell accommodates a gathered test sample therein; a vacuum pump adjusts a degree of vacuum in the light absorption cell; a test sample introduction unit gathers an air test sample from a location with a high possibility of a leakage of heavy water or a light water test sample from a secondary side of a steam generator and transfers the sample to the light absorption cell; an optical detector detects the laser beam which has passed through the light absorption cell; and a microprocessor controls the operation of the diode laser, the light absorption cell, the vacuum pump, the test sample introduction unit, and the optical detector, receives a detect signal from the optical detector, and analyzes an absorption spectrum signal.

Abstract: A method for isotope separation of ytterbium comprises isotope-selective photoionizing of a target isotope by use of a laser, and photoionizing of the target isotope from a metastable state to a continuum state or an auto-ionization state through excited states. The photoionized isotope ions of ytterbium can be separated within an electric field. With the method, it is possible to separate a great amount of ytterbium isotope by use of a simple apparatus while ensuring a highly economic efficiency in comparison with a conventional EM method.