Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.

Abstract: A wireless power reception device and a wireless communication method thereby are provided. The wireless communication method by the wireless power reception device may comprise the steps of: receiving a wireless power signal from a wireless power transmission device; measuring the strength of the wireless power signal; modulating the amplitude of the wireless power signal according to the measured strength of the wireless power signal; and performing communication with the wireless power transmission device by using the signal having the amplitude modulated.

Abstract: Disclosed herein is a method of controlling start/stop of a parallel fuel cell system, which, when controlling stop of a parallel fuel cell system in which two or more fuel cell systems are connected in parallel, considers operating state information of each fuel cell system, such as a current speed value of an air compressor and an opening degree of an air-exhaust-side air pressure valve of a fuel cell stack. Accordingly, the method can calculate a delay time for performing fuel cell system stop control for the two or more fuel cell systems, and sequentially perform the fuel cell system stop control for the two or more fuel cell systems based on the calculated delay time. Therefore, it is possible to minimize output delay of each fuel cell system and to achieve deterioration prevention and efficiency improvement of the fuel cell stack by fuel cell system start/stop control.

Abstract: The present disclosure relates to a UV-curable resin composition enabling thermoforming and a replica film of a real material including the same, in which the UV-curable resin composition includes a prepolymer including a urethane-based oligomer and an acrylic oligomer, an acrylate monomer and a photoinitiator.

Abstract: The present specification relates to a wireless power transmission device. The present specification provides a wireless power transmission device comprising: a power supply unit for supplying power to the wireless power transmission device; at least one first coil for transmitting power to a wireless power reception device; and first and second condensers configured so as to be connected respectively to different both ends of the power supply unit and the first coil.

Abstract: A method and system for controlling an air compressor of a fuel cell system is capable of increasing the output of the air compressor motor while preventing a voltage drop of the fuel cell stack by limiting the rotation speed of the air compressor motor according to a demand output and at the same time limiting the phase current and power consumption of the motor when the demand output of a vehicle equipped with the fuel cell system is changed.

Abstract: Provided is a method of controlling a sensorless motor for an air compressor. The method controls early driving of a sensorless motor for an air compressor, overcomes related-art problems, and improves control response. A position of a rotor of the motor, finally estimated by a sensorless control logic at a point in time at which the motor is determined to be in the stopped state, is determined to be an alignment target position. An alignment start position is determined from the alignment target position in accordance with a predetermined alignment offset angle. The position of the rotor of the motor is controlled to change from the determined alignment start position to the alignment target position.

Abstract: A method for comparing and evaluating performance of an image tagging model includes receiving a verification data set including a plurality of verification images and a plurality of correct values associated with the plurality of verification images, receiving a first image tagging model and a second image tagging model, calculating a first performance score for the first image tagging model using the verification data set, and calculating a second performance score for the second image tagging model using the verification data set, in which each of the correct values is associated with at least one verification class of a verification class set.

Abstract: A coil structure for wireless power transmission is provided. The coil structure comprises: a primary resonance coil wound in a spiral shape around a centripetal point; a primary induction coil, which supplies power to the primary resonance coil in a nonconnected state with an input or output terminal of the primary resonance coil and is wound in a spiral shape on a substantially same plane around a substantially same centripetal point as the centripetal point; a switch configured to be parallel with the primary resonance coil so as to control the ON and OFF of an operation of the primary resonance coil; and a capacitor coupled to the primary resonance coil so as to form a magnetic resonance with the primary resonance coil.

Abstract: A method of manufacturing a negative electrode includes styrene butadiene rubber on at least one surface of a negative electrode current collector, applying a second slurry including a negative electrode active material and a polyacrylic acid-based binder onto the first slurry, and drying and rolling the negative electrode current collector to which the first slurry and the second slurry are applied. The negative electrode active material includes a silicon-based negative electrode active material. According to the present disclosure, expansion and contraction of a silicon-based negative electrode active material during charging and discharging may be alleviated, and electrode flexibility may be improved, resulting in a significant improvement in lifespan properties of a secondary battery.

Abstract: According to an exemplary embodiment, there is provided a secondary battery in which a value of K1 represented by the following Expression (1) is 130 to 270: (200*AR+CR+20*CIR)*(1+CA)/CP??(1) in Expression (1), AR is a bulk resistance (?·cm) of the anode, CR is a bulk resistance (?·cm) of the cathode, CIR is an interfacial resistance (?·cm2) between the cathode active material layer and the cathode current collector, CP is 1?D/4.7, D is a pressed density (g/cc) of the cathode, and CA is an adhesive force (N/18 mm) between the cathode active material layer and the cathode current collector.

Abstract: Provided are a recombinant antigen comprising a cell membrane permeation domain comprising a polypeptide of any one of SEQ ID NOs: 1 to 22 derived from human LRRC24 and a SARS-CoV-2 antigen or a fragment thereof, a vaccine composition comprising the recombinant antigen, a gene construct comprising a polynucleotide encoding the recombinant antigen, a recombinant vector comprising the gene construct, a method for producing the SARS-CoV-2 recombinant antigen, and a kit for preventing or treating SARS-CoV-2 infection comprising the vaccine composition and users' instruction thereof, wherein the antigen exhibited higher immunogenicity against SARS-CoV-2 the neutralizing antibody was better formed in actual animal experiments, excellent protective immunity was induced, and toxicity did not appear in the toxicity test.

Abstract: A stretchable window includes: a first material extending in a first direction and a second material extending in a second direction that intersects the first direction. The first material and the second material are interwoven, the first material has a first modulus, and the second material has a second modulus. The first modulus has a value in a range of about 0.1 Mpa to about 500 Mpa and the second modulus has a value in a range of about 1 Gpa to about 50 Gpa.

Abstract: An optical device for a vehicle includes an optical sensor module for detecting light that propagates through a light transmitting member; and a correction optical system that includes at least one optical member for allowing the light that propagates between the light transmitting member and the optical sensor module to be refracted in a direction different from a direction refracted by the light transmitting member.

Abstract: Disclosed are a UV-curable resin composition for vacuum forming and a replica film of a real material including the same. The UV-curable resin composition includes a prepolymer including a urethane-containing oligomer, an acrylate monomer and a photoinitiator.

Abstract: A wireless power reception device and a wireless communication method thereby are provided. The wireless communication method by the wireless power reception device may comprise the steps of: receiving a wireless power signal from a wireless power transmission device; measuring the strength of the wireless power signal; modulating the amplitude of the wireless power signal according to the measured strength of the wireless power signal; and performing communication with the wireless power transmission device by using the signal having the amplitude modulated.

Abstract: A cleaning solution production system is for cleaning a semiconductor substrate. The system includes a pressure tank, a plasma reaction tank configured to form a plasma in gas bubbles suspended in a decompressed liquid obtained from the pressure tank to thereby generate radical species in the decompressed liquid, a storage tank configured to store a cleaning solution containing the radical species generated in the plasma reaction tank, and a nozzle configured to supply the cleaning solution from the storage tank to a semiconductor substrate.

Abstract: An embodiment rear side structure for a vehicle includes a rear side member extending in a longitudinal direction of the vehicle, a shock absorber mounting member connected to the rear side member, and a rear wheelhouse panel connected to the shock absorber mounting member, wherein the shock absorber mounting member and the rear wheelhouse panel are joined so that the shock absorber mounting member and the rear wheelhouse panel form a wheel arch.

Abstract: Disclosed is a method for manufacturing a fuel cell separator having minimized surface defect via surface polishing using high-pressure injection, in which surface polishing is performed using a high-pressure injection scheme in which polishing-fluid is injected at high-pressure through a polishing-fluid injection nozzle before performing vision inspection, thereby minimizing the surface defect of the fuel cell separator.

Abstract: The present disclosure relates to a slurry composition for a secondary battery electrode, and a secondary battery electrode manufactured using the same. The slurry composition includes dispersants of specific components, a carbon-based conductive material, and an organic solvent. The slurry composition has an advantage in that the stability of the carbon-based conductive material is excellent. In addition, due to the presence of a polar functional group in the dispersant, the surface treatment effect for the carbon-based conductive material is excellent, and thus the dispersibility of the carbon-based conductive material is remarkably improved.