Abstract: A unit cell of a metamaterial absorber may be an electromagnetic wave absorber for a 5.8 GHz band or 10 GHz band. The unit cell of the metamaterial absorber may include a first metal layer including at least one concentric circular ring-shaped conductor pattern, a first intermediate layer disposed on the lower surface of the first metal layer and composed of polyimide, a resistive layer disposed on the lower surface of the first intermediate layer, a second intermediate layer disposed on the lower surface of the resistive layer and composed of polyimide, and a second metal layer disposed on the lower surface of the second intermediate layer. The resistive layer may increase the operating bandwidth of an operating frequency. The thickness of the resistive layer may be 0.05 mm to 0.15 mm. The sheet resistance of the resistive layer may be 530 ?·sq?1 to 550 ?·sq?1.

Abstract: The present disclosure relates to a display pixel that has a memory function, including a switching TFT configured to control whether the pixel is driven, a charge trapping TFT configured to control a pixel driving current and perform a memory function, a storage capacitor configured to maintain a voltage applied based on the switching TFT, a first light-emitting light source configured to emit light through a current applied based on the CTTFT, and a second light-emitting light source configured to emit light to erase data based on the memory function of the CTTFT.

Abstract: A method for manufacturing an electrode structure is provided. The method for manufacturing an electrode structure comprises the steps of: preparing a base substrate; forming an amorphous seed layer covering the base substrate; crystallizing the seed layer; and covering the crystallized seed layer and forming a functional film for a secondary battery inherently having a crystalline structure.

Abstract: An embodiment apparatus for predicting traffic flow on a new road includes a memory, an input device, and a controller configured to input traffic data corresponding to a default context of the new road received by the input device to a prediction model stored in the memory, training of which is completed, and to predict a traffic flow corresponding to various contexts of the new road based on the prediction model.

Abstract: Disclosed is a population and contamination estimation method for severe accidents in nuclear power plants. The population estimation method performed by a population estimation device according to an embodiment may include storing location information of a nuclear power plant on a map and predicting a multi-unit accident occurrence point based on information on a plurality of single units associated with the nuclear power plant stored on the map.

Abstract: Provided is a light-emitting device including a reflective layer including a plurality of nano-structures two-dimensionally disposed regularly and a low-refractive-index layer disposed adjacent to the plurality of nano-structures, a first electrode disposed on the reflective layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein each of the plurality of nano-structures includes a non-metallic material, and the low-refractive-index layer includes a dielectric material having a second refractive index lower than a first refractive index of the non-metallic material.

Abstract: The present disclosure relates to a display panel which maximizes light and reduces high-order light to obtain high-quality images and/or videos by reducing the influence of diffracted light using metamaterials for UDC (Under Display Camera), a method for manufacturing the same, and a display device comprising the same, in which a metamaterial designed using the adjoint optimization method is formed on the lower part of the display substrate with a periodic arrangement structure.

Abstract: A sulfur dioxide-based inorganic electrolyte solution is doped with an iodine compound. A method of manufacturing the inorganic electrolyte solution includes preparing a powder salt by mixing a metal chloride, aluminum chloride and an iodine compound, and synthesizing the inorganic electrolyte solution by injecting sulfur dioxide (SO2) gas into the powder salt. The inorganic electrolyte solution is represented by Chemical Formula 1: M·(AlCl(4-x)Ix)z·ySO2, where M is at least one selected from the group consisting of Li, Na, K, Ca, and Mg, 0<x?1, 0<y?6, and 1?z?2. Reliability and stability of the battery are improved by suppressing growth of dendrites and reducing overvoltage occurring during charging and discharging of the battery by performing pre-treatment of lithium metal using the inorganic electrolyte solution.

Abstract: A method for preparing a metal-carbon composite catalyst comprises the steps of: preparing a source material comprising a metal precursor and a monomer, which comprises a methylpyrrolidone (NMP); heat treating the source material so as to prepare an intermediate; and carbonizing the intermediate so as to prepare a carbon nanocatalyst in which the metal of the metal precursor is coupled to a carbon matrix structure, wherein, according to whether the source material comprises an organic additive, the type of organic additive, and the type of metal precursor, the carbon matrix structure has a carbon sheet structure and/or a carbon porous body structure, and the metal can be metal ions and/or metal particles. The metal-carbon composite catalyst can have high ORR and OER characteristics, and thus can be used as a cathode material for a zinc-air battery.

Abstract: Particulate electrode active material with an average particle diameter in the range of from 2 to 20 ?m (D50) having a general formula Li1+xTM1?xO2 wherein TM is a combination of Ni, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, Mo, Mn, and W, with at least 80 mole-% of TM being Ni, and wherein x is in the range of from zero to 0.2, wherein the Co content at the outer surface of the secondary particles is higher than at the center of the secondary particles by a factor of at most 5 or by at most 30 mol-%, referring to TM.

Abstract: A wearable device according to the present disclosure includes: a communication portion; a body fluid sensor configured to measure conductivity in body fluid; and a controller configured to control the communication portion to transmit conductivity data to an external device in response to the frequency of rapid change in the conductivity.

Abstract: A chemical mechanical polishing pad includes a body having a cylindrical shape and extending in a vertical direction, the body including a plurality of first grooves extending downward in the vertical direction from an upper surface of the body, and a plurality of second grooves extending downward in the vertical direction inside the body. Each of the plurality of first grooves is exposed upward in the vertical direction from the upper surface of the body, each of the plurality of second grooves is located inside the body such that upper ends of the plurality of second grooves is below the upper surface of the body, and at least two of the plurality of first grooves have different depths from each other.

Abstract: A vehicle judder diagnostic method using artificial intelligence applied to a mobile-based GDS according to the present disclosure is characterized in that the mobile-based GDS samples a plurality of sensor signals of a sensor mounted in a vehicle in a vehicle during operation in a judder evaluation mode to quickly, separately diagnose whether the judder phenomenon of the vehicle is a geometric judder or a friction judder by mounting a deep neural network (DNN) model, developed by the trial and error process of a DNN by using the plurality of sensor signals of a test vehicle mounted with a double clutch transmission (DCT), as a judder determination artificial intelligence model 30 in the mobile-based GDS.

Abstract: Various embodiments relate to a computing device for attention-based joint training with a noise suppression model for a sound event detection (SED) technology that is robust against a noise environment and a method thereof, and are intended to improve SED performance that is robust against a noise environment by using a joint model in which a noise suppression model and an SED model have been jointed. According to various embodiments, an attention scheme and a weight freezing scheme are added to the joint model.

Abstract: A stator winding structure includes a stator core formed from a stack of a plurality of steel sheets, the stator core comprising a plurality of slots that are circularly arranged in multiple rows around an axis of rotation; a plurality of conductor bars positioned in the plurality of slots; a plurality of first barrier ribs electrically shielding between the plurality of conductor bars contiguous to each other in a radial direction; and a plurality of second barrier ribs electrically shielding between the plurality of conductor bars contiguous to each other in a circumferential direction; and a pair of end-turn members disposed at axial ends of the stator core and coupled to the conductor bars; wherein the plurality of conductor bars are arranged within the stator core by a casting process including die casting.

Abstract: The present invention discloses a selection device and a memory device including the same. The selection device according to an embodiment of the present invention has high reliability and a high selection ratio. Accordingly, when the selection device is used, a highly integrated memory cell capable of selecting a desired cell without leakage current may be provided.

Abstract: Provided is a parallel mechanism consisting of: a first module including a first plate having a first hollow formed therein; a second module disposed to be spaced apart from the first module, and including a second plate having a second hollow formed therein; and a power transmission unit provided in a space between the first and second modules, and including a third plate connecting the first and second modules in parallel, wherein the first and second modules form a symmetrical structure on the basis of the power transmission unit, a first range of motion in the first module is amplified, by means of the symmetrical structure, to a second range of motion that is wider than the first range of motion in the second module, a working space is formed in a space communicating with the first and second hollows, and the third plate is provided outside the working space.

Abstract: A catalyst scrubber apparatus includes a housing having an internal space; a catalyst carrier disposed in the internal space of the housing; and a plurality of nozzles installed in the housing and disposed above the catalyst carrier, wherein at least two of the plurality of nozzles are configured to receive and spray fluid therethrough, the at least two of the plurality of nozzles are shaped and dimensioned to diffuse the fluid sprayed into the internal space of the housing.

Abstract: A method for carbonizing a polymer and a graphite prepared by the method are disclosed. The method includes a stabilization treatment operation of treating a polyolefin-based polymer with an acid solution containing at least one of hydrochloric acid, nitric acid, or a combination thereof. The method also includes a carbonization treatment operation of carbonizing the stabilized polymer at a temperature within a range of 400 to 3350° C. The graphite obtained therefrom is soft carbon.

Abstract: Improved electrochemical yarn energy harvesters that convert mechanical energy to electrical energy. These harvesters include an ionically conducting electrolyte, and an electronically conducting material, and a material that can undergo charge injection, which can also be the electronically conducting material. At least one device electrode is either twisted, twisted and coiled, or twisted and plied.