Abstract: A current sensor includes: a printed circuit board (PCB) having a central hole that allows a conductor, which is a measurement target, to pass therethrough; a Rogowski coil part formed to be wound in a predetermined direction while keeping a predetermined distance from the central hole; and a shield part formed outside and inside the Rogowski coil part and configured to perform an electrical shielding function, and the shield part includes a shield bridge formed to connect separate spaces.

Abstract: Disclosed is a method of controlling the operation of a fuel cell triple cogeneration system configured to supply power and cooling heat to a data center, the method including detecting change in a power load or a cooling heat load of the data center and adjusting electrical energy and cooling capacity of the fuel cell triple cogeneration system.

Abstract: An image rectification system according to an aspect of the inventive concept includes: a distortion characteristic estimation module configured to divide an input image into a plurality of cells and estimate a distortion characteristic of each of the plurality of divided cells; a rectification information generation module configured to generate rectification information for each of the plurality of cells based on estimated distortion characteristic and reference information for rectification; and an image conversion configured to obtain a parameter for rectification for each of the plurality of cells and alignment of rectified cells based on the generated rectification information, and perform rectification on the input image based on the obtained parameter.

Abstract: Proposed is a method for processing, by one or more processors, data obtained on the basis of detection signals generated by a detector array including a plurality of detector units. The method includes generating, on the basis of the detection signals generated by the detector array, a spatio-temporal data set including a plurality of counting values, wherein each of the plurality of counting values corresponds to one of the plurality of detector units and is addressed to at least one time bin, and generating distance information including a plurality of distance values corresponding to each of the plurality of detector units by processing the spatio-temporal data set.

Abstract: A method comprises acquiring an image via image capturing; detecting an object in the image in a specific format based a deep learning; performing post-processing which determines whether a status of the detected object satisfies a predetermined condition; detecting, based on the post-processing, whether an event for activating recoding occurs; and starting recoding the image. An electronic device comprises a camera unit installed in a vehicle and configured to acquire an image of surroundings of the vehicle; a processor configured to detect an object in the image in a specific format based on deep learning, perform post-processing which determines whether a status of the detected object satisfies a predetermined condition, detect based on the post-processing whether an event for activating recoding occurs, and start recoding the image; and a storage unit configured to store the recorded image.

Abstract: The present disclosure is related to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst and, more specifically, to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst comprising steps of: nitridation-treating a transition metal precursor core and noble metal precursor shell particles in the presence of a gaseous nitrogen source; or forming a transition metal precursor core and noble metal precursor shell particles, by means of a liquid nitrogen source, and at the same time allowing the nitrogen source to bond with the transition metal precursor and thus allowing nitridation treatment. Therefore, the present disclosure allows a high nitrogen content in the core and thus enables a prepared catalyst to have excellent durability, a small average particle size and high degree of dispersion and uniformity, and thus to be suitable for the fuel cell field.

Abstract: A modeling method for designing a flow field of a fuel cell including a membrane electrode assembly including a catalyst layer and an electrolyte membrane, a gas diffusion layer, a flow field, and a bipolar plate includes modeling using a numerical model derived from a governing equation including a mass conservation equation of species, a fluid momentum in a porous media, and a modified Butler-Volmer's equation and outputting an oxygen diffusion characteristic in a catalyst layer from the modeling result.

Abstract: The method of bonding an interposer and an integrated circuit chip includes preparing an interposer including an insulator and conductive lines each having one end exposed to a first surface of the insulator and another end exposed to a second surface opposite to the first surface; placing a bonding mask on the interposer; forming through-holes on the bonding mask before or after the placing of the bonding mask on the interposer; filling the plurality with a conductive material; and bonding an integrated circuit chip to the bonding mask.

Abstract: A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.

Abstract: A transfer apparatus includes a guide rails extending parallel with each other, a vehicle configured to be movable along the guide rails, and a contactless driving module mounted to the vehicle. The contactless driving module includes a pair of running rails extending parallel with the guide rails and comprising a plurality of first permanent magnets and a plurality of second permanent magnets arranged in a extending direction, respectively, a driving wheel disposed between the running rails to be spaced apart from the running rails and comprising a plurality of third permanent magnets arranged in a circumferential direction, and a driving unit for rotating the driving wheel. Particularly, at least one of the third permanent magnets is disposed between the first permanent magnets and the second permanent magnets.

Abstract: Provided is a method for manufacturing a membrane-electrode assembly. The method includes forming an electrode layer, preparing a porous support layer, and positioning the electrode layer on each of both surfaces of the porous support layer and hot-pressing the electrode layer positioned on the both surfaces. The forming of the electrode layer incudes forming a functional layer including a hydrogen ion conductive binder resin on at least a portion of an electrode catalyst layer, and forming an electrolyte layer on at least a portion of the functional layer. The preparing of the porous support layer includes performing a pretreatment process by impregnating the porous support layer with a pretreatment composition, and the performing of the pretreatment process includes dipping the porous support layer in a first pretreatment composition and then drying the porous support layer, and dipping the porous support layer after drying in a second pretreatment composition.

Abstract: A block copolymer, an ion-exchange membrane including the block copolymer and a method of preparing the block copolymer are provided. The block copolymer may include a hydrophobic repeating unit and a hydrophilic repeating unit.

Abstract: Disclosed is a fuel cell filter including a body including therein an internal space in which a fluid flows, an inlet port provided in the body and configured to receive a fluid discharged from a fuel cell stack, a gas-water separating membrane disposed in the internal space and configured to block a liquid fluid included in a fluid absorbed in the inlet port from flowing upwards, a discharge port provided in the body and configured to externally discharge the liquid fluid blocked in the gas-water separating membrane, a water absorbent disposed in the internal space and configured to absorb water included in a gaseous fluid passing through the gas-water separating membrane, and a gas outlet port provided in the body and configured to externally discharge gas separated in the gas-water separating membrane.

Abstract: An interposer includes: a circuit board stack in which circuit boards are stacked; and an outer board arranged on at least one of outer side surfaces of the circuit board stack. The circuit boards are arranged include first conductive lines having first ends exposed through a first side portion of the circuit boards and second ends exposed through a second side portion opposite the first side portion of the circuit boards. The outer board includes second conductive lines having first ends exposed through a different side from the first side portion of the circuit boards and second ends exposed through a side portion located on a same side as the second side portion of the circuit boards.

Abstract: The present invention relates to a method for manufacturing a membrane-electrode assembly, a membrane-electrode assembly, and a fuel cell. More specifically, the present invention relates to a method for manufacturing a membrane-electrode assembly, a membrane-electrode assembly, and a fuel cell, the method comprising: preparing an electrode layer; preparing a porous support layer; and positioning the electrode layer on each of both surfaces of the porous support layer, and hot pressing the electrode layer positioned on both surfaces of the porous support layer, wherein the preparing of the electrode layer comprises: forming a functional layer including a hydrogen ion conductive binder resin on at least a portion on an electrode catalyst layer; and forming an electrolyte layer on at least a portion on the functional layer.

Abstract: A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.

Abstract: An apparatus and a method for manufacturing a continuous reactor type core-shell catalyst electrode, which may manufacture a large amount of continuous reactor type core-shell catalyst electrodes by improving coating efficiency of shell metal by using reaction chambers disposed in a circular shape or in a line are provided. The apparatus for manufacturing a continuous reactor type core-shell catalyst electrode includes: a main body; reaction chambers which are disposed plurally in a circular shape inside the main body, store reaction solution inside thereof, are equipped with a movable member and counter electrodes, and are coupled with a reference electrode to a lateral portion thereof; a palladium sheet which is moved by the movable member and immersed in the reaction solution as the movable member moves downward; a power supply which applies a voltage to the electrodes.

Abstract: The present disclosure is related to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst and, more specifically, to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst comprising steps of: nitridation-treating a transition metal precursor core and noble metal precursor shell particles in the presence of a gaseous nitrogen source; or forming a transition metal precursor core and noble metal precursor shell particles, by means of a liquid nitrogen source, and at the same time allowing the nitrogen source to bond with the transition metal precursor and thus allowing nitridation treatment. Therefore, the present disclosure allows a high nitrogen content in the core and thus enables a prepared catalyst to have excellent durability, a small average particle size and high degree of dispersion and uniformity, and thus to be suitable for the fuel cell field.

Abstract: A transfer apparatus includes a guide rails extending parallel with each other, a vehicle configured to be movable along the guide rails, and a contactless driving module mounted to the vehicle. The contactless driving module includes a pair of running rails extending parallel with the guide rails and comprising a plurality of first permanent magnets and a plurality of second permanent magnets arranged in a extending direction, respectively, a driving wheel disposed between the running rails to be spaced apart from the running rails and comprising a plurality of third permanent magnets arranged in a circumferential direction, and a driving unit for rotating the driving wheel. Particularly, at least one of the third permanent magnets is disposed between the first permanent magnets and the second permanent magnets.

Abstract: A block copolymer, an ion-exchange membrane including the block copolymer and a method of preparing the block copolymer are provided. The block copolymer may include a hydrophobic repeating unit and a hydrophilic repeating unit.