Abstract: The present invention enables a polycondensation reaction of polyester at a low temperature to lead to an improvement in thermal stability as well as a high degree of polymerization in a polyester resin, so that a polyester resin with a minimized end group (carboxyl group) and a small content of foreign matter can be produced. In addition, when a film is manufactured using the polyester resin, a film with a uniform thickness can be produced because no gap is formed between the drum surface and a sheet-like product even at a high rotational speed due to an excellent electrostatic application property and a small melt specific resistance of the polyester resin, and a film with high transparency can be produced due to a small content of foreign matter.

Abstract: Disclosed is a three-dimensional semiconductor device comprising a substrate including first and second regions, a first active section on the first region and including a first lower channel pattern and a first lower source/drain pattern, a second active section on the first active section and including a first upper channel pattern and a first upper source/drain pattern, a third active section on the second region and including a second lower channel pattern and a second lower source/drain pattern, a fourth active section on the third active section and including a second upper channel pattern and a second upper source/drain pattern, and a gate electrode on the first and second lower channel patterns and the first and second upper channel patterns. A first width in a first direction of the first lower channel pattern is greater than a second width in the first direction of the second lower channel pattern.

Abstract: Provided are a method and apparatus for providing a counseling service. A method of operating a counseling center server interworking with an instant messaging service includes providing a profile of at least one expert account for counseling linked to a channel of a second user to a terminal of a first user, identifying an initiation condition for a counseling ticket for counseling with a first expert account, creating a counseling ticket to be allocated to the first expert account, and transmitting counseling content through a chat room for counseling of the channel in which the first expert account and an account of the first user participate.

Abstract: A multifunctional soft gripper device includes: a body unit which is moved depending on the position of a target object; a grip unit which includes a main body mounted below the body unit, a cup-shaped suction gripper provided on a lower end of the outer surface of the main body, a protrusion gripper having a plurality of small protrusions and provided on a lower portion of the outer surface thereof, and a finger gripper provided on an upper portion of the outer surface thereof; and an actuation unit mounted within the main body and the grip unit, which operates to move vertically, performing gripping motions with one of the suction gripper, protrusion gripper, or finger gripper based on the target object by operating the actuation unit in an optimal operation mode.

Abstract: The method of manufacturing a copper foil with a high elongation rate includes: preparing a plating solution by mixing a copper ion, an additive for improving conductivity, a plating inhibitor, and a plating accelerator; and manufacturing the copper foil by immersing a substrate in the plating solution and applying an electric current to the plating solution to electroplate the copper foil on a surface of the substrate.

Abstract: Provided are a method and apparatus for providing a counseling service. A method of operating a counseling center server interworking with an instant messaging service includes acquiring, based a search request for a message transmitted to a channel registered in the service, a search result of a chatbot server linked to the channel, providing an interface for inputting a value of at least one parameter included in the search result to a terminal of a counselor linked to the channel, acquiring an entity corresponding to the parameter based on the message, determining a value of the parameter based on at least one of the acquired entity and data input through the interface, and requesting, based on the determined value of the parameter, an instant messaging server configured to provide the service to transmit a response message corresponding to the search result.

Abstract: An ultra-micro electrode that performs electrochemical analysis and a method of manufacturing the same is provided. The method includes preparing an insulating member having a capillary shape with a hollow region, preparing a conductive wire including a conductive material with an oxidation resistance greater than an oxidation resistance of copper, inserting the conductive wire into the hollow region of the insulating member, manufacturing half-finished products by applying heat and an external force to the insulating member having the conductive wire inserted therein to stretch the insulating member and the conductive wire so that a central portion of the insulating member is thin and the insulating member and the conductive wire are ruptured at central portions thereof, forming a groove by etching the conductive wire located on a ruptured surface of each half-finished product, and forming a filling layer by filling the groove with a conductive material by a plating process.

Abstract: A battery defect detection apparatus according to an embodiment disclosed herein includes: a communication module; a processor; and a memory configured to store a first artificial intelligence model, a second artificial intelligence model, and instructions, in which the processor is configured to execute the instructions by the battery defect detection apparatus; to perform operations including: obtaining an image of a subject product by using the communication module, inputting the image of the subject product to the first artificial intelligence model to classify the subject product, and inputting the image of the subject product to the second artificial intelligence model to determine whether the image of the subject product corresponds to first data for classifying the subject product as normal among learning data of the first artificial intelligence model, when the subject product is classified as normal.

Abstract: A semiconductor device includes a semiconductor substrate, a first gate oxide layer, and a first source/drain doped region. The first gate oxide layer is disposed on the semiconductor substrate, and the first gate oxide layer includes a main portion and an edge portion having a sloping sidewall. The first source/drain doped region is disposed in the semiconductor substrate and located adjacent to the edge portion of the first gate oxide layer. The first source/drain doped region includes a first portion and a second portion. The first portion is disposed under the edge portion of the first gate oxide layer in a vertical direction, and the second portion is connected with the first portion.

Abstract: A door checker assembly for a vehicle which is installed between a vehicle body and a door and assists an opening and closing operation of the door is provided. A door checker assembly for a vehicle according to an example embodiment of the present disclosure may include a checker arm; and a door checker through which the checker arm passes and moves. According to an example embodiment of the present disclosure, the checker arm may include one or more operation surfaces, and the door checker may include a pair of torsion bars; a slider provided on one side of each of the torsion bars; and a case which joins and fixes the pair of torsion bars to each other. According to an example embodiment of the present disclosure, an operation surface of the checker arm may be configured to be formed in a lateral surface direction.

Abstract: A device for measuring a height includes an inclined portion including a display, a bottom portion connected to the inclined portion, a support vertically connected to the bottom portion, and a laser device disposed in a region where the inclined portion and the support meet each other, the inclined portion, the bottom portion, and the support are connected to each other based on a shape of a right triangle when viewed from a side, the bottom portion includes a support plate for covering the bottom portion, and a switch is included between the bottom portion and the support plate.

Abstract: A hybrid material housing for a battery reduces or minimizes thermal runaway propagation. The housing includes a composite structure for the battery and optionally includes a polymeric matrix selected from the group consisting of: epoxy, phenolic resin, polyester, vinyl ester, and combinations thereof and a reinforcing material selected from the group consisting of: glass fibers, carbon fibers, basalt fibers, aromatic polyamide KEVLAR® fibers, and combinations thereof. A metal layer is disposed along an exterior surface of the composite structure that comprises aluminum, steel, stainless steel, alloys, and combinations thereof. In a first mode, the metal layer contacts the composite structure and in a second mode after exposure to a thermal load of greater than or equal to about 500° C., the metal layer at least partially delaminates from the exterior surface and forms insulating air gaps to define a thermal barrier. Methods of forming the hybrid material housings are also provided.

Abstract: Provided is a compression system including, in order to minimize an amount of oil mixed with a supplied refrigerant, a compressor configured to compress and discharge the refrigerant, a plurality of oil separators configured to separate the oil included in the refrigerant discharged from the compressor, and a refrigerant pipe configured to connect the compressor and the plurality of oil separators to form a travelling path of the refrigerant, and the plurality of oil separators are connected in series along the travelling path of the refrigerant.

Abstract: A prismatic battery having a first electrode stack, second electrode stack and a thermal barrier disposed between the first and second electrode stack. The first electrode stack has a first anode, a first cathode and a first separator disposed between the first anode and the first cathode. The second electrode stack has a second anode, a second cathode and a second separator disposed between the second anode and the second cathode. The first electrode stack, the thermal barrier and the second electrode stack form a first cell or stack assembly. The first stack assembly is disposed within an interior of a housing containing an electrolyte.

Abstract: An apparatus for manufacturing display devices includes: a stage; and a head unit disposed on the stage and including a nozzle unit. The head unit further includes a first coating portion covering a bottom surface of the head unit and at least a part of an inner surface of the nozzle unit, and where a thickness of at least a part of the first coating portion becomes narrower toward a top of the first coating portion.

Abstract: A laundry treating apparatus includes a 2-tank structure including a distillation tank and a washing tub. The laundry treating apparatus includes the washing tub that defines an inner space configured to receive laundry, the distillation tank configured to store liquid carbon dioxide, a compressor configured to receive gaseous carbon dioxide evaporated from the liquid carbon dioxide in the distillation tank, the compressor being configured to discharge the gaseous carbon dioxide, a cooler configured to cool the gaseous carbon dioxide discharged from the compressor and to supply the liquid carbon dioxide to the washing tub, and a controller configured to perform a control method. In some cases, a laundry treating apparatus includes a 3-tank structure including a storage tank, a washing tub, and a distillation tank.

Abstract: A system for detecting a defect of an electrode tab, is capable of easily detecting whether an electrode tab is folded during a manufacturing process of a secondary battery, and a method of detecting a defect of an electrode tab using the same is disclosed. The system includes a gripper configured to grasp a unit cell including an electrode and to transfer the unit cell to a magazine and a visual inspection system to detect the electrode tab.

Abstract: A seat belt retractor which is mounted in a mounting space formed on a backrest of a seat installed in a vehicle and comprises a spindle module including webbing and a spindle having the webbing wound on the outer surface thereof, wherein the spindle is arranged along the longitudinal direction of the vehicle corresponding to the thickness direction of the backrest in the mounting space, such that by rotating the direction in which the spindle, on which the webbing is wound, is installed, the width in the longitudinal direction mounted on the backrest of the seat can be minimized, thereby making the retractor more slender.

Abstract: The present invention relates to a lithium composite oxide including a coating layer having a boron-containing oxide and a lithium secondary battery including the same. More particularly, the present invention relates to a lithium composite oxide improved in lifetime and capacity characteristics by inducing a predetermined correlation between the molar ratio of nickel in a lithium composite oxide including a coating layer having a boron-containing oxide and a full width at half-maximum (FWHM; deg., 2?) of a (104) peak among XRD peaks defined by the hexagonal lattice with an R-3m space group, and a lithium secondary battery including the same.