Abstract: The operating method of a server for providing a metaverse in which a call between user terminals may be performed may include: generating a first avatar based on profile information of a first user terminal and a second avatar based on profile information of a second user terminal; providing a map space in which the first avatar and the second avatar are able to travel; mediating a call between the first user terminal and the second user terminal based on whether a plurality of avatars including the first avatar and the second avatar have entered a first audio space included in the map space; and completing matching between the first user terminal and the second user terminal when a first sign of attraction to the second avatar is transmitted from the first user terminal and a sign of attraction to the first avatar is transmitted from the second user terminal.

Abstract: A transparent photovoltaic cell is proposed. The transparent photovoltaic cell may include a transparent substrate, a plurality of micro-pillars arranged on an upper part of the transparent substrate and formed with respective transparent windows, through which incident sunlight transmits, on respective upper parts thereof. The transparent photovoltaic cell may also include a photoelectric converter formed on an upper surface of the transparent substrate between each of the plurality of micro-pillars and on side surfaces of each micro-pillar, and configured to generate power through absorption of incident sunlight.

Abstract: Disclosed is a memory system including a memory device including a plurality of memory blocks, and a controller suitable for controlling the memory device to perform pre-read reclaim on pre-victim blocks of pre-read blocks among the plurality of memory blocks, the pre-victim blocks including uncorrectable errors, the pre-read blocks being blocks on which a pre-read operation has been performed.

Abstract: A medical liquid discharge assembly includes: a driving part configured to move in a preset direction, a rotating part configured to come into contact with the driving part, and to rotate in one direction in response to the movement of the driving part, a tube part disposed adjacent to the rotating part and including a flexible material, a pressure-applying part configured to come into contact with the rotating part, and to come into contact with and apply pressure to the tube part in response to the rotation of the rotating part, and a locking part configured to move in a preset direction, and to fix a position of the pressure-applying part by coming into contact with and supporting one surface of the pressure-applying part while the pressure-applying part applies pressure to the tube part.

Abstract: A dual spoiler apparatus changes a tilting angle and a length of an air spoiler to control the air flow to the rear of a vehicle, so as to improve aerodynamic performance and simplify parts for tilting and length change. The dual spoiler apparatus includes: a first spoiler device configured to slide on a spoiler mounting portion in a first direction; a second spoiler device configured to tilt on the spoiler mounting portion in a second direction; and a driving device configured to switch a sliding position of the first spoiler device and a tilting position of the second spoiler device.

Abstract: The present invention relates to a compound of Formula 1, a preparation method thereof, a pharmaceutical composition comprising the same as an active ingredient, and a use thereof. The compound of Formula 1 according to the present invention can exhibit cell necrosis and ferroptosis inhibitory efficacy in various cells such as heart, kidney, nerve, retina, liver, or lung cells, and accordingly, can be usefully used for prevention or treatment of cell necrosis or ferroptosis-related diseases.

Abstract: According to an embodiment of the present disclosure, a method for manufacturing an auger-type ice maker including an ice-making tube, an auger, a refrigerant pipe, and a metal core material, includes heating and feeding the metal core material to the ice-making tube; winding the metal core material together with the refrigerant pipe around the ice-making tube; and heating a welding agent through an internal space of the ice-making tube to perform adhesion between the metal core material and both of the refrigerant pipe and the ice-making tube, wherein, in the winding the metal core material together with the refrigerant pipe on the ice-making tube, the heated metal core material is pressurized by pressure of winding the refrigerant pipe around the ice-making tube, to completely fill the spiral space with the heated metal core material, or to form a uniform interval in the spiral space.

Abstract: A server includes a processor configured to receive a recipient designation input designating a plurality of user accounts as a recipient of a gift from a user terminal accessing with a purchaser account, determine, based on country information of the plurality of user accounts indicating a plurality of countries, a target country from among the plurality of countries, determine, from among the plurality of user accounts, a user account having country information indicating the determined target country as a recipient account, and transmit, to the user terminal, a display command for a screen that provides information of a product giftable to the determined recipient account.

Abstract: In an embodiment, an energy harvesting apparatus includes a housing, a first power generation unit, and a second power generation unit. In the energy harvesting apparatus according to an embodiment, electrical energy can be generated by rotation of a blade by a slipstream generated during travel of a mobility vehicle. Electrical energy can be additionally generated by pressure and impact generated during rotation of the blade. When the blade is rotated at high speed as driving speed of the mobility vehicle increases, pressure and impact can be reduced, thereby preventing damage to the blade or a piezoelectric element and thus improving the durability thereof.

Abstract: The present invention relates to a method for stabilizing ceramide and to a cosmetic composition containing stabilized ceramide and, more specifically, to a method for homogenizing and stabilizing ceramide by self-assembling the ceramide together with ?-sitosterol, resveratrol, and allantoin which are other physiologically active substances using a microfluidic chip and a high pressure homogenizer, and to a technique for using ceramide and nanoparticles containing ?-sitosterol, resveratrol, and allantoin, which are produced by means of the stabilizing method, as a cosmetic material for skin moisturizing, anti-oxidation, skin inflammation relief, skin barrier enhancement, and skin itching relief.

Abstract: In an embodiment, an energy harvesting apparatus includes a housing, a blade, and a power generation unit, which may include a power generation motor and a piezoelectric power generator. In the energy harvesting apparatus according to an embodiment, electrical energy can be generated by rotation of a blade by a slipstream generated during travel of a mobility vehicle. Electrical energy can be additionally generated by pressure and impact generated during rotation of the blade. When the blade is rotated at high speed as the driving speed of the mobility vehicle increases, pressure and impact can be reduced, thereby preventing damage to the blade or a piezoelectric element and thus improving the durability thereof.

Abstract: The present technology relates to an adhesion strength measurement system for a wet electrode specimen that can evaluate the adhesion strength of an electrode specimen impregnated with an electrolyte solution, and an adhesion strength measurement method for a wet electrode specimen using the same. The adhesion strength measurement system includes: a test substrate; an electrode specimen attached to the test substrate; a fixing jig configured to fix the test substrate so that the electrode specimen attached to the test substrate is immersed in an electrolyte solution; and an adhesion strength measurement unit configured to measure a force at which a mixture layer of the electrode specimen is peeled off by applying a tensile force to the gripped electrode specimen, the adhesion strength measurement unit including a grip part configured to grip one region of the electrode specimen.

Abstract: Provided is a method for analyzing technology including an information collection step of designing a metaframe structure for keywords to be analyzed, deriving a technology structure based on the metaframe structure using a generative AI model, generating search keywords based on the derived technology structure, and searching and obtaining a plurality of documents based on the search keywords; and a technology classification step of refining the plurality of documents according to a similarity between the documents, performing preprocessing to utilize contents of the plurality of documents, and then performing detailed technology classification based on results obtained by performing content-based clustering, and a device for processing the method.

Abstract: An apparatus for processing a substrate includes a heating unit heating the substrate and including a hot plate having a vacuum hole; a fume collection unit including a housing, an inlet portion connected to the vacuum hole and introducing a mixed gas containing fumes generated in heating the substrate within an internal space of the housing, and an outlet portion discharging a gas from which the fumes have been removed to an external space of the housing; a vacuum unit connected to the fume collection unit and vacuum-adsorbing the substrate onto the hot plate when the substrate is heated; and a chilling unit including a cooling body, a coolant inflow fluid passage introducing a coolant into the cooling body, a coolant discharge fluid passage discharging the coolant from the cooling body, and a bypass fluid passage connecting the coolant inflow fluid passage and the coolant discharge fluid passage.

Abstract: According to an embodiment of the present disclosure, there is provided a method of predicting a brain tissue lesion distribution, the method including: a model learning operation of learning a prediction model for predicting a brain tissue lesion distribution of a subject by using brain image data of a plurality of previous patients; an input obtaining operation of obtaining input data from brain image data of the subject; and an output operation of generating output image data including information on the lesion distribution after recanalization treatment for the subject, by using the prediction model. The prediction model includes a success prediction model that is learned by using data of patients in which recanalization treatment is successful among the plurality of previous patients, and a failure prediction model that is learned by using data of patients in which recanalization treatment fails among the plurality of previous patients.

Abstract: The present technology relates to a manufacturing method for an electrode binder, comprising a step of dissolving pelletized polyvinylidene fluoride (PVDF) in a solvent; and an electrode assembly comprising the electrode binder. The present invention may provide an electrode assembly which has a low content of impurities in a binder solution, is capable of increasing dispersibility of an electrode active material, and exhibits excellent binding force.

Abstract: An auger-type ice maker includes an ice generator including an ice making tube, an auger installed coaxially within the ice making tube, and a refrigerant pipe wound spirally around and fixed to an outer surface of the ice making tube to be in close contact therewith, an ice compressor connected to an upper portion of the ice generator, the ice compressor configured to compress ice generated by the ice generator, and a fluid reservoir connected to a lower portion of the ice generator, the fluid reservoir configured to retain a fluid to be supplied to the ice generator. A portion of the fluid reservoir is disposed in a position the same as or higher than that of the ice compressor.

Abstract: A medical liquid injection device includes: a reservoir assembly storing medical liquid in a storage space defined by a reservoir and a plunger moving linearly inside the reservoir, a needle assembly connected fluidly to the reservoir assembly to discharge the stored medical liquid, and a driving unit transmitting a driving force generated by a driving module to the plunger. The driving unit includes a rod member coupled to the plunger to move linearly together with the plunger, a wheel member rotating by the driving force, and a connection member having a catching portion that is movable in an axial direction of the wheel member and the rotation thereof with respect to the wheel member is limited around the axial direction.

Abstract: A memory device, and a method of manufacturing the same, includes interlayer insulation layers spaced apart from each other and stacked, gate lines formed between the interlayer insulation layers, and a plug vertically passing through the interlayer insulation layers and the gate lines. Each of the gate lines includes a barrier layer formed along an inner wall of the interlayer insulation layer and the plug, a first conductive layer surrounded by the barrier layer, and a second conductive layer surrounded by the first conductive layer and having a grain size different from a grain size of the first conductive layer. A volume of the second conductive layer is variable along a direction in which the gate lines extend.