Abstract: Provided is a wireless power resonator. The wireless power resonator, including a transmission line and a capacitor, may form a loop structure, and may additionally include a matcher to determine an impedance of the wireless power resonator.

Abstract: Provided is an apparatus that may control a direction of wireless power transmission. A radiative wireless power transmitter may include at least two first unit resonators to form a magnetic field with a target resonator based on an x-axis direction and a z-axis direction, and to transmit a resonance power to the target resonator, at least two second unit resonators to form a magnetic field with the target resonator based on the x-axis direction and a y-axis direction, and to transmit a resonance power to the target resonator, at least two third unit resonators to form a magnetic field with the target resonator based on the y-axis direction and the z-axis direction, and to transmit a resonance power to the target resonator, and a feeding unit to control resonance power transmission of the at least two first unit resonators, the at least two second unit resonators, and the at least two third unit resonators.

Abstract: A thin film resonator for a wireless power transmission is provided. The thin film resonator may include a first transmission line unit provided as a thin film type, a second transmission line unit also provided as the thin film type, and a capacitor inserted at a predetermined position of the first transmission line unit.

Abstract: Provided is a backward-wave oscillator in a communication system, including a waveguide formed of a metamaterial. A unit structure of the waveguide may include: a top plate; a short-circuited stub; a bottom plate separated at a predetermined gap from the top plate, and having the short-circuited stub formed in the center thereof; a first metal pillar connecting the top plate at a first port positioned on one surface based on the short-circuited stub to the bottom plate at a second port positioned on the opposite surface of the first port based on the short-circuited stub; and a second metal pillar separated from the first metal pillar, and connecting the top plate at the second port to the bottom plate at the first port.

Abstract: An apparatus for interchanging welding tips of a spot welding gun. The apparatus replaces a welding tip installed in a robot arm and includes welding tip removal componentry combined with the robot arm, welding tip mounting means combined with one side of the welding tip removal componentry, and a welding tip supply spaced apart from the welding gun at a specific distance and configured to supply a welding tip to the welding tip mounting componentry.

Abstract: A door hinge of a vehicle can reduce a closing speed by generating rotational resistance only when strongly closing a door or a trunk at a predetermined speed or more. The door hinge of a vehicle may include: a door bracket coupled to a door and rotatably coupled to one side of a vehicle body bracket coupled to a vehicle body; a pawl lever pivotably assembled to the door bracket and rotating when a door closes over a predetermined speed; an anti-rotation ring pivotably assembled to the vehicle body bracket and combined with the pawl lever to operate together when the door closes over a predetermined speed; and a friction member disposed inside the anti-rotation ring and generating rotational resistance when the anti-rotation ring pivots.

Abstract: The present invention relates to an apparatus for interchanging welding tips of a spot welding gun. According to the present invention, an apparatus for interchanging welding tips of a spot welding gun comprises: a post frame provided with a connection plate on a top surface; a tip-removal means coupled at a predetermined position on one side surface of the post frame; and a tip-setting means coupled to a top surface of the connection plate.

Abstract: A wireless power transmission method includes searching for one or more routes to be used to transmit power to a reception resonator through one or more relay resonators, and converting the routes to respective one or more two-port networks. The method further includes calculating a transmission efficiency of each of the routes based on the two-port networks, and selecting a route with a highest transmission efficiency from the routes. The method further includes wirelessly transmitting power to the reception resonator through the selected route.

Abstract: A method of manufacturing a non-volatile memory device, wherein the method includes: alternately stacking interlayer sacrificial layers and interlayer insulating layers on a substrate; forming a plurality of first openings that pass through the interlayer sacrificial layers and the interlayer insulating layers to expose a first portion of the substrate; forming a semiconductor region on a side wall and a lower surface of each of the first openings; forming an embedded insulating layer in each of the first openings; forming a first conductive layer on the embedded insulating layer inside each of the first openings; forming a second opening exposing a second portion of the substrate and forming an impurity region on the second portion; forming a metal layer to cover the first conductive layer and the impurity region; and forming the metal layer into a metal silicide layer.

Abstract: A door weather strip for a vehicle includes a weather strip body, an upper rib, a lower rib and a sealing portion. The weather strip body has an assembly groove. The upper rib and lower rib extend outward from one side of the weather strip body at a predetermined distance in a height direction of the weather strip body. The sealing portion is integrally connected with the upper rib and the lower rib.

Abstract: A door sealing structure for a motor vehicle includes a receiving recess provided at the door inner panel, a door weather strip of which a partial portion is inserted into the receiving recess so as to be rotatably supported and formed with a size capable of protruding outside from the receiving recess, and an elastic member being installed in and supporting the door weather strip elastically for preventing the door weather strip from being detached from the receiving recess, thereby reducing a closing force of a door and improving an air-tightness performance.

Abstract: An antenna for a radar detector according to the present invention comprises: a power supply unit; first and second branches branched from the power supply unit; a first band patch antenna connected to the first branch and having first band properties; a second band patch antenna connected to the second branch and having second band properties; a second band stub placed between the power supply unit and the first band patch antenna on the first branch; and a first band stub placed between the power supply unit and the second band patch antenna on the second branch. The antenna for the radar detector according to the present invention may match one power supply unit without damaging the properties of a plurality of antennas that have different frequency properties.

Abstract: The present invention relates to an infinite wavelength antenna device, which includes: a board body made of a dielectric and having a slab structure; a feed part arranged on one surface of the board body, and generating a magnetic field when power is applied; and an MNG resonance part arranged on the board body so that a preset distance is maintained from the feed part and at least a portion thereof is placed within the magnetic field, grounded through both ends thereof, resonating at a specific frequency band when the magnetic field is generated, and having a negative permeability. In the present invention, as the infinite wavelength antenna device operates according to the infinite wavelength property, the resonant frequency band may be determined independently of the size of the antenna device. Hence, miniaturization of the infinite wavelength antenna device can be realized.

Abstract: A display apparatus and a user interface providing method thereof are provided. The method including: in response to a command being input, displaying user interface comprising at least one icon which represents a current setting status of the display apparatus on one area of a display screen; and in response to an icon of the at least one icon being selected, changing a setting status of a function of the display apparatus corresponding to the selected icon.

Abstract: A door weather strip for a vehicle includes a weather strip body, an upper rib, a lower rib and a sealing portion. The weather strip body has an assembly groove. The upper rib and lower rib extend outward from one side of the weather strip body at a predetermined distance in a height direction of the weather strip body. The sealing portion is integrally connected with the upper rib and the lower rib.

Abstract: The door weather strip for a motor vehicle includes a base portion attached to a door panel, a sealing portion, and a lever. The sealing portion is disposed to integrally extend from the base portion to tightly contact a vehicle body panel and seal a gap between the door panel and the vehicle body panel when the door panel is closed. The lever is connected to the base portion and the sealing portion and configured to be hung at the vehicle body panel while the door panel is closing such that the sealing portion rotates on the vehicle body panel.

Abstract: A door sealing structure for a motor vehicle includes a receiving recess provided at the door inner panel, a door weather strip of which a partial portion is inserted into the receiving recess so as to be rotatably supported and formed with a size capable of protruding outside from the receiving recess, and an elastic member being installed in and supporting the door weather strip elastically for preventing the door weather strip from being detached from the receiving recess, thereby reducing a closing force of a door and improving an air-tightness performance.

Abstract: Provided is a two-step method of producing a compound of chemical formula 1 in the presence of an alcohol solvent and a Group 3B metal catalyst or a salt thereof, comprising a first step comprising alkylation or isomerization of an aldohexose-containing substrate to obtain an intermediate, and a second step comprising dehydration of the intermediate to produce a compound of chemical formula 1. Preferably, additional solvent and/or catalyst are not added in the second step.

Abstract: Provided is a semiconductor device including an insulating layer of a cubic system or a tetragonal system, having good electrical characteristics. The semiconductor device includes a semiconductor substrate including an active region, a transistor that is formed in the active region of the semiconductor substrate, an interlevel insulating layer that is formed on the semiconductor substrate and a contact plug that is formed in the interlevel insulating layer and that is electrically connected to the transistor. The semiconductor device may include a lower electrode that is formed on the interlevel insulating layer and that is electrically connected to the contact plug, an upper electrode that is formed on the lower electrode and an insulating layer of a cubic system or a tetragonal system including a metal silicate layer. The insulating layer may be formed between the lower electrode and the upper electrode.

Abstract: According to example embodiments, a vertical type semiconductor device includes a pillar structure on a substrate. The pillar structure includes a semiconductor pattern and a channel pattern. The semiconductor pattern includes an impurity region. A first word line structure faces the channel pattern and is horizontally extended while surrounding the pillar structure. A second word line structure has one side facing the impurity region of the semiconductor pattern and another side facing the substrate. A common source line is provided at a substrate portion adjacent to a sidewall end portion of the second word line structure.