Abstract: A sub-reader and a method of controlling the sub-reader are provided. The method of controlling the sub-reader which is connected to a door reader provided in an existing installed door operating device to provide a communication method that is not supported by the door reader includes: obtaining first open request information using a first communication method from a terminal; obtaining second open request information for transmission to the door reader based on the first open request information; and transmitting the second open request information to the door reader using a second communication method different from the first communication method.

Abstract: Disclosed herein are an access control system and an access control method using the same. The access control method in which a door operating device determines whether to open a door on the basis of an authentication token acquired from a user terminal without intervention of an authentication server includes obtaining the authentication token from the user terminal; determining whether the user have authorization for accessing the door based on a authentication information included in the authentication token; controlling the door to be opened in case of determined that the user have authorization for accessing the door.

Abstract: Various embodiments of the present invention relate to an electronic device and a charging control method therefor. The electronic device may comprise: a connection terminal for performing wired communication with an external electronic device; and at least one processor functionally connected to the connection terminal, wherein the at least one processor detects connection of a charging device through the connection terminal, receives state information of at least one adjacent terminal located next to a power terminal of the connection terminal, and controls charging power to be supplied thereto through the charging device, on the basis of the received state information of the adjacent terminal. In addition, various other embodiments are possible.

Abstract: A method and system allow management of access to a door using a beacon signal. A user access authority determination unit controls access of a user to a target door based beacon data from beacons installed near a door. The user carries a terminal that obtains the beacon data based on a proximity to the beacons. The method includes identifying the target door based on identification information of the beacons extracted from the beacon data. A type of user movement is determined. The type of user movement includes an entering movement that the user enters into an inner side from an outer side through the target door and an exiting movement that the user exits the inner side to the outer side through the target door. An access authentication process to be performed to unlock the target door is determined according to the determined type of user movement.

Abstract: A sub-reader and a method of controlling the sub-reader are provided. The method of controlling the sub-reader which is connected to a door reader provided in an existing installed door operating device to provide a communication method that is not supported by the door reader includes: obtaining first open request information using a first communication method from a terminal; obtaining second open request information for transmission to the door reader based on the first open request information; and transmitting the second open request information to the door reader using a second communication method different from the first communication method.

Abstract: A semiconductor device has a substrate and a semiconductor die disposed over the substrate. An encapsulant is deposited over the semiconductor die and substrate with a surface of the semiconductor die exposed from the encapsulant. A first shielding layer is formed over the semiconductor die. In some embodiments, the first shielding layer includes a stainless steel layer in contact with the surface of the semiconductor die and a copper layer formed over the stainless steel layer. The first shielding layer may further include a protective layer formed over the copper layer. One embodiment has a heatsink bonded to the semiconductor die through a solder layer. A second shielding layer can be formed over a side surface of the semiconductor die.

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: Disclosed herein are an access control system and an access control method using the same. The access control method in which a door operating device determines whether to open a door on the basis of an authentication token acquired from a user terminal without intervention of an authentication server includes obtaining the authentication token from the user terminal; determining whether the user have authorization for accessing the door based on a authentication information included in the authentication token; controlling the door to be opened in case of determined that the user have authorization for accessing the door.

Abstract: A camera module includes a housing having an internal space, and a first lens module and a second lens module disposed in the internal space and each configured to be movable in an optical axis direction, wherein a first shaft and a first ball member are disposed between the first lens module and the housing, wherein a second shaft and a second ball member are disposed between the second lens module and the housing, and wherein, when moving in the optical axis direction, rolling friction occurs on one of both sides of each lens module, and sliding friction occurs on the other of both sides.

Abstract: A method and system allow management of access to a door using a beacon signal. A user access authority determination unit controls access of a user to a target door based beacon data from beacons installed near a door. The user carries a terminal that obtains the beacon data based on a proximity to the beacons. The method includes identifying the target door based on identification information of the beacons extracted from the beacon data. A type of user movement is determined. The type of user movement includes an entering movement that the user enters into an inner side from an outer side through the target door and an exiting movement that the user exits the inner side to the outer side through the target door. An access authentication process to be performed to unlock the target door is determined according to the determined type of user movement.

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.