Abstract: Provided are a hydrogenation reaction catalyst and a preparation method therefor, and more particularly, to a hydrogenation reaction catalyst including sulfur as a promoter, thereby selectively hydrogenating an olefin by changing a relative hydrogenation rate of the olefin and an aromatic group during a hydrogenation reaction of an unsaturated hydrocarbon compound containing an aromatic group, and a preparation method therefor.

Abstract: A charge trapping non-volatile organic memory device according to the present invention has a structure in which an organic matter-based blocking layer, a trapping layer, and a tunneling layer are sequentially positioned between a gate and an organic semiconductor layer positioned on an insulating substrate, the trapping layer including a metal oxide and a polymer, and has an organic-inorganic composite film in which the metal oxide is dispersed in a polymer matrix in units of atoms.

Abstract: Provided is an antenna module which can minimize the resistance of a radiation pattern by forming the radiation pattern on both surfaces or on a single surface in accordance with a relative position to an insertion hole in which a magnetic sheet is inserted and whether to overlap the magnetic sheet. The provided antenna module includes a radiation pattern is formed on both surfaces of the flexible sheet at a part of regions and is formed on a single surface of the flexible sheet at a remaining part.

Abstract: Disclosed is an antenna module, which forms a radiation pattern for near-field communication and a radiation pattern for electronic payment on a flexible printed circuit board, and then couples it with a magnetic sheet, thereby implementing the performance equal to or superior to that of a conventional antenna module while simplifying the manufacturing process. The disclosed antenna module includes a flexible magnetic sheet and an antenna sheet on which a radiation pattern and an insertion hole are formed, and the magnetic sheet is formed with an extension portion formed on one short side, and the extension portion is penetrated and inserted into the insertion hole to be coupled with the antenna sheet.

Abstract: Provided is an antenna module which can minimize the resistance of a radiation pattern by forming the radiation pattern on both surfaces or on a single surface in accordance with a relative position to an insertion hole in which a magnetic sheet is inserted and whether to overlap the magnetic sheet. The provided antenna module includes a radiation pattern is formed on both surfaces of the flexible sheet at a part of regions and is formed on a single surface of the flexible sheet at a remaining part.

Abstract: Disclosed is an antenna module, which forms a radiation pattern for near-field communication and a radiation pattern for electronic payment on a flexible printed circuit board, and then couples it with a magnetic sheet, thereby implementing the performance equal to or superior to that of a conventional antenna module while simplifying the manufacturing process. The disclosed antenna module includes a flexible magnetic sheet and an antenna sheet on which a radiation pattern and an insertion hole are formed, and the magnetic sheet is formed with an extension portion formed on one short side, and the extension portion is penetrated and inserted into the insertion hole to be coupled with the antenna sheet.