Abstract: Methods for preparing a solid electrolyte membrane are described. More particularly, a small amount of binder may be fiberized through a dry calendering process to prepare a solid electrolyte membrane. Since the fiberized binder is included in an entangled state within the solid electrolyte membrane, it shows excellent characteristics in both ionic conductivity and strength.

Abstract: Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery containing the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer and a second solid electrolyte layer stacked adjacent to each other, and the first solid electrolyte layer has a structure in which particulate binders are dispersed, and the second solid electrolyte layer has a structure in which fibrous binders are entangled or connected to each other, and thus the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane. The solid electrolyte membrane may be substantially free of solvent.

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

Abstract: A method for analyzing a structure of a solid electrolyte film, including a step of: immersing the solid electrolyte film including a solid electrolyte and a binder into a polar solvent to remove the solid electrolyte from the solid electrolyte film; and analyzing a structure of the solid electrolyte film in which the solid electrolyte is removed.

Abstract: The present disclosure relates to a solid electrolyte film, its fabrication method, and an all-solid-state battery including the same. More specifically, the solid electrolyte film comprises a slurry including a sulfide and/or halide-based solid electrolyte, a binder, and a solvent, coated on a substrate and then dried and pressed. By pressing at a temperature equal to or above a glass transition temperature (Tg) of the binder, the packing density of the solid electrolyte film is increased, thereby improving the ionic conductivity.

Abstract: A solid electrolyte film and an all-solid-state battery including the same, wherein the solid electrolyte film is fabricated by a dry process of physically mixing sulfide-based and/or halide-based solid electrolyte particles with a binder, wherein the binder is fiberized in the dry process and forms fiberized binders in an intertwined state, so that a small amount of binder is sufficient to provide improved ionic conductivity and strength.

Abstract: The present disclosure relates to a thermoplastic polyurethane composition for injection molding and a method for manufacturing the same. Specifically, the thermoplastic polyurethane composition includes 0.5% by weight to 10.0% by weight of a sulfonate diol, 13% by weight to 60% by weight of an isocyanate, 30% by weight to 70% by weight of an ether-containing polyester polyol, and 5% by weight to 40% by weight of a chain extender.

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.

Abstract: A removable fastening system includes a rail unit located in a vehicle, an electrode portion located at the inner side of the rail unit, a fixing unit having one end inserted to be fixed to the rail unit, and a mounting unit mounted at another end of the fixing unit, wherein the fixing unit is inserted into the rail unit and has a conductive portion rotated to be brought into contact with the electrode portion.

Abstract: The present disclosure relates to a method of generating, by a terminal, an integrated graph using a distributed graph including: receiving source node information from a user; identifying, by a graph types module, a location of a graph database related to a type of a source node based on the source node information; requesting, by a graph manager module, graph data to an application corresponding to the location of the graph database; receiving the graph data from the application; and integrating, by a graph integration module, a node and an edge based on the source node and the graph data to generate the integrated graph.

Abstract: A method for determining a low voltage defect of a lithium secondary battery is provided. The method includes measuring a primary voltage of a lithium secondary battery whose formation process has been completed, transporting the lithium secondary battery, measuring temperatures to which the lithium secondary battery has been exposed during the transporting process, measuring a secondary voltage of a lithium secondary battery whose transporting has been completed, revising the secondary voltage to calculate a corrected secondary voltage based on the temperature to which the lithium secondary battery has been exposed, and comparing the primary voltage and the corrected secondary voltage to determine whether the lithium secondary battery is defective.

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.

Abstract: A portable sterilizer according to an embodiment of the present application is capable of spraying ultra-fine chemicals, and includes a housing in which a space is formed and an injection nozzle is provided at a front end thereof, a chemical tank provided on one side of the space of the housing, a chemical feed pipe formed between the chemical tank and the injection nozzle, and a water pump which is installed on one side of the chemical supply pipe to supply the chemical to the injection nozzle through the chemical supply pipe.

Abstract: A method for determining a low voltage defect of a lithium secondary battery is provided.

Abstract: An apparatus for correcting an error of a radar sensor for a vehicle and a method thereof can correct a target measurement error of the radar sensor installed inside a bumper of the vehicle based on target information obtained from a camera image. The apparatus includes: a radar sensor that is installed inside a bumper of the vehicle to detect a target, a camera that photographs a surrounding image of the vehicle, and a controller that corrects a target detection error of the radar sensor based on target information obtained from an image photographed by the camera.

Abstract: A portable sterilizer according to an embodiment of the present application is capable of spraying ultra-fine chemicals, and includes a housing in which a space is formed and an injection nozzle is provided at a front end thereof, a chemical tank provided on one side of the space of the housing, a chemical feed pipe formed between the chemical tank and the injection nozzle, and a water pump which is installed on one side of the chemical supply pipe to supply the chemical to the injection nozzle through the chemical supply pipe.

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

Abstract: Various embodiments of the present invention relate to an electronic device comprising a wireless communication circuit, and a portable communication device.

Abstract: In a method for estimating a position of a missile, an incident angle of a signal of a radar irradiated to the moving missile is calculated. The incident angle is defined by an angle between a measurement vector indicating a direction from the radar toward the missile and a movement vector indicating a moving direction of the missile. A distance compensation value from a point on a surface of the missile to an origin point of the missile is calculated based on the calculated incident angle. A distance from the radar to the origin point of the missile is calculated based on the calculated distance compensation value and a distance from the radar to the point on the surface of the missile. A position of the missile is estimated based on a position of the radar and the calculated distance from the radar to the origin point of the missile.

Abstract: An electronic device includes a housing; a first antenna located at a first part of the housing; a second antenna located at a second part separated from the first part of the housing; a transceiver configured to generate a first signal and a second signal; a first coupler electrically connected between the first antenna and the transceiver and configured to receive the first signal from the transceiver and provide the received first signal to the first antenna; a second coupler electrically connected to the second antenna and the transceiver and configured to receive the second signal from the transceiver and provide the received second signal to the second antenna; and a control circuit operationally connected to the transceiver, wherein the control circuit is configured to determine at least one value related to gains of the first signal and the second signal based at least partially on the signals provided from the first coupler and the second coupler, determine whether the first signal has a higher gain