Abstract: A method for manufacturing a gas diffusion layer for a fuel cell wherein carbon nanotubes are impregnated into Korean paper, thereby enhancing electroconductivity, and a gas diffusion layer manufactured thereby. The method for manufacturing a gas diffusion layer for a fuel cell which is to manufacture a gas diffusion layer as a constituent member of a unit cell in a fuel cell, includes a support preparation step of preparing a support with Korean paper; a dispersion preparation step of dispersing a carbon substance in a solvent to form a dispersion, a coating step of coating the support with the dispersion, and a thermal treatment step of thermally treating the dispersion-coated support to fix the carbon substance to the support.

Abstract: Disclosed herein are a method and apparatus for converting a credential data schema.

Abstract: Disclosed herein is a method for user-centered visitor access management, which may include issuing, by a management office server, a digital certificate to a householder terminal; registering, by a wall-pad, a householder in response to a request to register the householder based on the digital certificate; requesting, by the householder terminal, the management office server to register a visitor based on a visit request from a visitor terminal and delegating the digital certificate to the visitor terminal; making an entry request to a management terminal based on the digital certificate; verifying, by the wall-pad, the digital certificate based on a request for verification for entry from a wall-pad management terminal and providing a verification result to the wall-pad management terminal when the management terminal is the wall-pad management terminal; and managing and controlling, by the wall-pad, permission to use home devices based on delegated permission information of the digital certificate.

Abstract: Provided according to one embodiment is a device for sensing a gas, comprising: a lamp for outputting ultraviolet light; a first PCB including a hole for inserting the lamp; a second PCB disposed perpendicular to the first PCB and including a lamp power terminal and a lamp ground terminal used to supply power to the lamp; a third PCB disposed parallel to the first PCB, disposed perpendicular to the second PCB, and including a power reception terminal for receiving power from the outside; a first ring-shaped electrode attached to the lamp power terminal and fixing the lamp; and a second ring-shaped electrode attached to the lamp ground terminal, fixing the lamp, and disposed parallel to the first electrode.

Abstract: One embodiment of the present invention provides a water circulation-type malodor reduction system including a fluid supply line that supplies a fluid to a roof of a livestock barn, a first reservoir which is provided on one side of the roof and in which the fluid flowing along the roof is accommodated, and an accommodation part in which the fluid falling from the first reservoir is accommodated, wherein the accommodation part is disposed so that the fluid falls in an S shape.

Abstract: According to an embodiment, a monitoring device, comprising: a sensor for sensing inflow gas information including a component and a concentration of an inflow gas introduced into a regenerative thermal oxidizer (RTO); and a processor for determining residual gas information including a component and a concentration of a residual gas in the RTO by using the inflow gas information, and updating an inflow amount per unit time of the inflow gas according to a risk level of the RTO determined based on the residual gas information, is provided.

Abstract: According to one embodiment of the present disclosure, provided is a real-time atmospheric diffusion monitoring system comprising: a fixed odor measuring device which is fixed at a specific point and measures smell information; a vehicle odor measuring device which measures smell information while moving on the ground; a drone which measures smell information while moving in the air; and a server which analyzes and manages odor information spreading in the atmosphere on the basis of the smell information collected from at least one of the fixed odor sensing device, the vehicle odor sensing device, and the drone.

Abstract: Provided according to one embodiment of the present disclosure is a real-time odor tracking system using an ultralight flight device, the system comprising: an ultralight flight device which measures odor information while moving in the air; and a server which analyzes and manages information on odor generated from a specific point, on the basis of the odor information collected from the ultralight flight device.

Abstract: An embodiment of the present disclosure provides an integrated monitoring system for real-time odor tracking, the system comprising: a fixed odor measuring device for measuring odor information while being fixed at a specific point; a mobile odor measuring device for measuring odor information while moving on the ground; a drone for measuring odor information while moving in the air; and a server for analyzing and managing odor information occurred at a specific point on the basis of the odor information acquired from at least one of the fixed odor measuring device, the mobile odor measuring device, and the drone.

Abstract: Provided according to one embodiment of the present disclosure is a real-time odor tracking system using a vehicular odor measuring device, the system comprising: a vehicular odor measuring device which measures odor information while traveling on the ground; and a server which analyzes and manages information on odor generated from a specific point, on the basis of the odor information collected from the vehicular odor measuring device.

Abstract: According to one embodiment, provided is a method for collecting odor, comprising: a step for acquiring odor monitoring information sensed by a plurality of odor sensors; a step for starting to collect odor in an odor collection bag on the basis of the odor monitoring information; a step for acquiring a limit message when the remaining capacity of the odor collection bag is less than or equal to a preset value as the odor is collected; and a step for outputting a notification indicating that replacement of the odor collection bag is required on the basis of the limit message.

Abstract: Provided in one embodiment of the present invention is an inhibitor removal system for sensor detection, comprising: a housing in which odorous gas flows in a pipe; a gas inlet part providing a passage through which the odorous gas flows into the housing; a pre-treatment part for removing odor detection inhibitors from the odorous gas flowing in the housing; a gas discharge part providing a passage through which the odorous gas is discharged from the housing; and a control unit for controlling the operation of a pre-treatment system in the pre-treatment part, wherein the pre-treatment part comprises a first pre-treatment part having a filtering device for filtering and separating out the odor detection inhibitors from the odorous gas; and/or a second pre-treatment part having an electrical dust collection device for collecting and separating out the odor detection inhibitors from the odorous gas.

Abstract: Provided according to one embodiment is a device for sensing a gas, comprising: a lamp for outputting ultraviolet light; a first PCB including a hole for inserting the lamp; a second PCB disposed perpendicular to the first PCB and including a lamp power terminal and a lamp ground terminal used to supply power to the lamp; a third PCB disposed parallel to the first PCB, disposed perpendicular to the second PCB, and including a power reception terminal for receiving power from the outside; a first ring-shaped electrode attached to the lamp power terminal and fixing the lamp; and a second ring-shaped electrode attached to the lamp ground terminal, fixing the lamp, and disposed parallel to the first electrode.

Abstract: A non-dispersive infrared-type carbon dioxide gas sensor includes: an optical retaining device having an optical waveguide formed along a circular outer periphery; an infrared light source unit installed on one end of the optical waveguide; and an infrared sensor unit installed at the center space of the optical retaining device and connected to the other end of the optical waveguide. The infrared sensor unit includes a first infrared sensor having a filter such that infrared rays in wavelength bands to be measured selectively pass through same, and a second infrared sensor having a filter such that infrared rays in wavelength bands, which are not absorbed, can selectively pass through same.

Abstract: A method is provided that identifies the compounds contributing to fishy water odor from an air conditioner, reproduces the fishy water odor, and prepares a corresponding fishy water odor composition. Through the analysis method of the present invention, the compounds contributing to the fishy water odor from an air conditioner are identified and quantified. The fishy water odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fishy water odor provides significant data required for development of an apparatus and a method for removing specific odor.

Abstract: A method that identifies the compounds contributing to a detected burnt odor from an air conditioner artificially reproduces the detected burnt odor, and prepares a corresponding burnt odor composition is provided. Through the analysis method of the present invention, the compounds that contribute to the detected burnt odor from an air conditioner are be identified and quantified. The detected burnt odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced burnt odor provides significant data required for development of an apparatus and a method for removing specific odor.

Abstract: A method that identifies the compounds contributing to a sweet odor from an air conditioner, reproduces the sweet odor, and prepares a corresponding sweet odor composition. Through the analysis method of the present invention, the compounds contributing to the sweet odor from an air conditioner are identified and quantified. The sweet odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced sweet odor provides significant data required for development of an apparatus and a method for removing specific odor.

Abstract: A method that identifies the compounds contributing to a fish-like odor from an air conditioner and artificially reproduces the fish-like odor, and prepares a corresponding fish-like odor composition. Through the analysis method of the present invention, the compounds contributing to the fish-like odor from an air conditioner are identified and quantified. The fish-like odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fish-like odor provides significant data required for development of an apparatus and a method for removing specific odor.

Abstract: A method is provided that identifies the compounds contributing to a malodor from an air conditioner, reproduces the malodor, and prepares a corresponding malodor composition. Through the analysis method of the present invention, the compounds contributing to the malodor from an air conditioner are identified and quantified. The malodor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced malodor provides significant data required for development of an apparatus and a method for removing specific odor.

Abstract: A method is provided that identifies the compounds contributing to fishy water odor from an air conditioner, reproduces the fishy water odor, and prepares a corresponding fishy water odor composition. Through the analysis method of the present invention, the compounds contributing to the fishy water odor from an air conditioner are identified and quantified. The fishy water odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fishy water odor provides significant data required for development of an apparatus and a method for removing specific odor.