Abstract: An unscented Kalman filter-based beam tracking system and a method thereof are proposed. The system includes a base station for performing beamforming to an unmanned aerial vehicle, and the base station includes a pre-processing unit for deriving an expected vector value for a movement trajectory of the UAV with a signal received from the UAV and selecting at least one sigma point from the derived expected vector value, a covariance derivation unit for deriving an autocovariance by inputting the selected sigma point to a nonlinear measurement function and deriving a cross-covariance with the derived expected vector value and the derived autocovariance, and a beam estimation unit for deriving a beamforming angle for a future movement trajectory of the UAV by deriving an unscented Kalman filter gain from the derived autocovariance and derived cross-covariance, thereby having effects of a low mean square error, high spectral efficiency, high accuracy of beam tracking.

Abstract: The present invention relates to a perovskite metal oxide catalyst substituted with metal ions for reducing carbon deposition, a method for producing the same, and a process for performing a methane reforming reaction using this catalyst. According to the present invention, a novel type of catalyst is produced in which Ni, iron or cobalt in ionic form is substituted at a portion of the Ti site (B-site) of SrTiO3, MgTiO3, CaTiO3 or BaTiO3, which is a multicomponent metal oxide having a perovskite (ABO3) structure. Then, various methane reforming reactions (e.g., steam-methane reforming (SMR), dry reforming of methane (DRM), catalytic partial oxidation of methane (CPOM), etc.) may be efficiently and economically performed using this catalyst. The nickel-substituted perovskite metal oxide catalyst according to the present invention has a structure in which Ni2+, Co2+, Fe2+, Co3+ or Fe3+ is substituted in the perovskite lattice structure.

Abstract: A system and method of calibrating a camera and a LiDAR sensor through high-resolution conversion of LiDAR data is proposed. The system is included a data reception unit for receiving at least one image data and LiDAR data, which are obtained by photographing a target object, from the respective camera and LiDAR sensor, a feature point extraction unit for extracting feature points of each of the received image data and LiDAR data, a conversion information derivation unit for deriving image conversion information for fusing the feature points of each image data, and deriving LiDAR conversion information for fusing the feature points of each LiDAR data, and a data fusing unit for fusing at least two feature points of the image data, and fusing at least two feature points of the LiDAR data, thereby fusing the fused feature points of the image data and LiDAR data.

Abstract: The present disclosure relates to a plant disease control composition comprising a culture broth of Streptomyces sp. JCK-6141 strain or an extract of the culture broth of the strain, a preparation method therefor and a plant disease control method. The culture broth of the strain or an extract thereof exhibits extremely excellent antimicrobial activity when applied to a causative pathogen of plant disease and thus may be effectively used for plant disease control.

Abstract: Disclosed is an electrolyte membrane including an antioxidant containing elemental sulfur or a sulfur compound to improve antioxidant activity and resistance to acids. In addition, a membrane-electrode assembly including the electrolyte membrane is disclosed.

Abstract: A user verifying method comprises: receiving an enrollment request signal including biometric information for enrollment from a user terminal; extracting feature information from the biometric information; embedding the feature information extracted from the biometric information; generating a projection parameter and a decision hyperplane parameter based on the embedding result; storing the projection parameter and the decision hyperplane parameter; generating a first template by applying a cryptographic hashing function to a pre-generated first key; receiving a verification request signal including biometric information from the user terminal; extracting feature information from the biometric information; embedding the feature information extracted from the biometric information; generating a second key corresponding to the first key based on the embedding result; generating a second template by applying the cryptographic hashing function to the second key; comparing the first template with the second templ

Abstract: Provided is an electronic device includes a user interface; a communication module configured to perform communication with at least one outdoor unit and a plurality of indoor units connected to the at least one outdoor unit; and a processor configured to determine a heat exchanger with a contamination level equal to or higher than a preset contamination level among a heat exchanger of the at least one outdoor unit and heat exchangers of the plurality of indoor units based on an output from a neural network for operation data received from each of the at least one outdoor unit and the plurality of indoor units, determine a cleaning period of the determined heat exchanger based on a rate of increase in energy of the determined heat exchanger, and control the user interface to output information indicating the determined cleaning period, wherein the neural network is trained with operation data varying by contamination level of a heat exchanger.

Abstract: A personal information security system and a method thereof ensuring irreversibility and similarity are proposed. According to specific exemplary embodiments of the present technology, the personal information security system includes a feature vector extraction unit for extracting a feature vector from user modality information, an Absolute Value Equations Transform (AVET) unit for performing absolute value equations transform on the feature vector, and a transformed-template generation unit for generating a transformed template (TT) from which the feature vector is unable to be predicted reversely from a result of the AVET.

Abstract: Disclosed herein are a method for analyzing a genetic interaction to reduce a false positive in gene screening for at least one gene cluster associated with at least one type of cells by deriving the genetic interaction and a synthetic partner with at least one profile selected from the group consisting of a mutation profile, a loss-of-function profile, and an expression profile; and a system using same.

Abstract: The present disclosure relates to an artificial ankle joint tibial component and, more particularly, to an artificial ankle joint tibial component of an implant that is implanted into a body, the implant including: a body part having a contact surface in contact with a resected surface of a distal end of a tibia of a joint and a joint surface facing a joint; and a fixing part formed to extend a predetermined length upwards from the contact surface, wherein the fixing part is configured as a single body formed to extent a predetermined length upwards from the center in the front area of the contact surface and includes a wing extending to one side, and wherein the wing includes at least one posterior wing that extends at a predetermined angle relative to an AP line, thereby preventing stress from being concentrated on one wing to avoid a fracture thereof and increasing the contact area between a bone and an implant to strengthen fixing force, prevent rotation, and disperse stress, so that bone resorption aroun

Abstract: Embodiments of the inventive concept provide a system and method that verifies a user through a security token combined with biometric information processing techniques capable of changing and canceling the conventional encryption key without storing biometric information-related data corresponding to a user's personal information.

Abstract: A semiconductor device includes a substrate. A first heat dissipation layer is disposed on the substrate and extends in a first direction. A metal layer is disposed on the first heat dissipation layer and extends in the first direction. A width of the first heat dissipation layer in a second direction intersecting the first direction is greater than a width of the metal layer in the second direction. The first heat dissipation layer has a structure made of carbon atoms and includes at least one among graphene, nanotubes, and a diamond structure.

Abstract: A tacrolimus drug-eluting stent manufacturing method according to the present invention enables a tacrolimus drug to be strongly and stably bound onto a stent, while also not necessarily involving a separate step of introducing a surface-binding functional group for the binding of a drug onto a stent and a step of introducing, into the drug, a functional group capable of binding to the surface-binding functional group, and a tacrolimus drug-eluting stent manufactured by the manufacturing method has a greater total drug elution amount and has a more excellent delayed drug-elution property.

Abstract: A recombinant vector according to an embodiment of the present invention may produce fibroblast growth factor 19 (FGF19) having enhanced solubility. The synonymous codon substitution variant fibroblast growth factor 19 (scvhFGF19) and chaperone ?ssDsbC may be simultaneously and independently expressed in a host cell into which the recombinant vector is introduced, thereby it is possible to overexpress the fibroblast growth factor 19 in a soluble state.

Abstract: Provided is a therapeutic agent targeting and fixation medical device that precisely targets a therapeutic agent including a magnetic substance by using an optimized array of magnets in consideration of an affected area of a patient.

Abstract: The present disclosure relates to a membrane-electrode assembly for fuel cells and a method of manufacturing the same, and more particularly to a membrane-electrode assembly to which an electrolyte membrane including a cerium oxide and phosphoric acid functionalized graphene oxide is applied, whereby chemical durability and proton conductivity of the membrane-electrode assembly are improved.

Abstract: The present invention provides a novel radioactive compound for imaging malignant melanoma and a use thereof as a contrast agent for PET imaging.

Abstract: A method of forming nanoparticles having superhydrophobicity includes preparing a PDMS film including a structure having a predetermined shape on a surface thereof, and generating the nanoparticles having superhydrophobicity on the surface of the PDMS film by combusting the surface of the PDMS film using a diffusion flame. Transparent nanoparticles having superhydrophobicity and oleophobicity may be generated simply and easily on the surface of the PDMS film.

Abstract: Disclosed are a membrane-electrode assembly and a method for manufacturing the same. The membrane-electrode assembly has durability and proton conductivity which are improved by employing an ion conductive polymer having improved chemical durability and ion conductivity.

Abstract: A negative electrode of a secondary battery may include an electrode plate including lead; and an active material layer provided on the electrode plate and including composite particles having a core-shell structure, wherein a core of the composite particle includes lead; a shell of the composite particle includes carbon; and a specific surface area of the composite particles is 1 to 5,000 m2/g.