Abstract: A buckle includes: a plug member which includes support arms formed at both ends in a forward direction of a base, and a support part formed forward from the base between the two support arms; a socket member that includes support chambers formed at both ends where the support arms are inserted, a central chamber formed between the two support chambers and having an open front, a retained part formed at the rear end of the central chamber, and a first magnet embedded inside the central chamber; and a locking member which is rotatably mounted on the support part, and includes a second magnet embedded in the center to correspond with the first magnet when the plug member and the socket member are coupled.

Abstract: A display device includes a display portion including a first surface, from which light is emitted in a first direction, and a second surface opposite to the first surface, a first optical portion disposed on the first surface, and a second optical portion disposed on the first surface to be spaced apart from the first optical portion in a second direction crossing the first direction. Each of the first and second optical portions includes a multi-channel lens through which the light from the first surface passes, a first infrared light source, a first camera, and a first lens frame coupled to the multi-channel lens in the first direction to support at least a portion of the multi-channel lens. The first lens frame may include a first recess structure in which the first infrared light source is disposed and a second recess structure in which the first camera is disposed.

Abstract: A strap bar device includes: a strap accessory which includes two support parts facing each other to be spaced apart from each other, and a through-hole and a support groove formed in the two support parts to face each other; and a strap bar which is inserted through the through-hole and is supported in the through-hole and the support groove. A strap is connected to the strap bar.

Abstract: Provided are an edge gateway system for providing device use and resource sharing suggestions and an operating method thereof. The edge gateway system includes at least one edge gateway and an edge gateway management server connected to the at least one edge gateway. The edge gateway is connected to one or more edge devices and transmits an operation status of the edge gateway and an operation status of the edge devices to the edge gateway management server, the edge gateway management server generates suggestion information to be delivered to a user of the edge gateway based on the operation status of the edge gateway and the operation status of the edge devices, and the suggestion information includes any one of an edge device use suggestion, an edge device sharing suggestion, and an edge gateway service resource sharing suggestion.

Abstract: The present disclosure relates to a hydrophilic modified polymer membrane and a method for fabricating the same, and more specifically, to a polymer membrane dip-coated with double bond-containing PVDF (DPVDF) and modified to be hydrophilic by reaction with a polymer or monomer containing an amine group, and a method of fabricating the same. The polymer membrane of the present disclosure is fabricated by physically coating a porous polymer substrate by dip coating with DPVDF, and then chemically modifying the surface of the dip-coated substrate to be hydrophilic using a polymer or monomer containing an amine group. That is, the polymer membrane is fabricated by performing both physical coating and chemical coating so that the dissolution of inorganic particles in the membrane can be further suppressed.

Abstract: The present invention includes: a porous structure containing an oxygen ion conductive material; and a coating layer disposed on the porous structure and containing an electronically conductive material, in which a content of the oxygen ion conductive material is greater than that of the electronically conductive material, and the coating layer is uniformly formed to a thickness of 20 nm or less.

Abstract: A buckle with a whistle includes: a plug member having lock arms extending forward from both sides of a base and a guide rod extending forward from the base in such a way as to be located between the lock arms; and a socket member having a chamber open on the front end thereof by means of an upper plate and a lower plate located to face each other so that the socket member is coupled to the plug member. The chamber is allowed to accommodate the guide rod therein. The guide rod is configured as the whistle. When the plug member is coupled to the socket member, the whistle is accommodated in the chamber.

Abstract: In an embodiment of the present invention, a proton conductive oxide fuel cell comprising an electrode substrate, a proton conductive oxide electrolyte layer positioned on the electrode substrate, a proton conductive oxide reaction prevention layer positioned on the electrolyte layer, and a proton conductive oxide air electrode layer positioned on the reaction prevention layer, wherein the reaction prevention layer is composed of ABO3-? structured perovskite proton conductive oxide, may be provided.

Abstract: An apparatus for predicting a traffic speed and a method thereof are provided. The apparatus includes an input device that receives traffic speed sequences of a plurality of links and a controller that detects a spatio-temporal relationship between traffic speeds of the plurality of links and predicts a future traffic speed of a target link based on the spatio-temporal relationship between the traffic speeds of the plurality of links.

Abstract: Disclosed are a separator for fuel cells capable of minimizing the volume of a system and the use of sealants, and a stack for fuel cells, more particularly, a stack for solid oxide fuel cells, including the same. Specifically, by adding a metal sheet having a specific shape, position and size to the separator, the stress applied to the sealant can be uniformized, and thus the oxidizing agent and fuel can be separated and electrically isolated using only a piece of sealant. Therefore, the stack for fuel cells is characterized in that there is no variation in temperature, reactant concentration, power, or the like between respective unit cells, so delamination and microcracks do not occur, the volume is minimized, and the power density per unit volume is very high.