Abstract: A motor that is a wound field synchronous motor and includes a rotor and a stator. The rotor includes a plurality of winding portions configured to have a preset cross-section for generating a uniform effective air gap. The winding portions are spaced from each other a predetermined distance apart along a circumferential direction of the rotor. A field coil is wound around the plurality of winding portions.

Abstract: A display device capable of improving a light emission efficiency includes a plurality of insulating films disposed on a substrate, a trench exposing side surfaces of the plurality of insulating films, a first alignment electrode disposed on the side surfaces of the plurality of insulating films exposed by the trench, a second alignment electrode disposed so as to be surrounded by the first alignment electrode, and a light-emitting device connected to the first and second alignment electrodes and disposed between the first and second alignment electrodes within the trench, thereby improving a light emission efficiency.

Abstract: A display device includes first and second alignment electrodes disposed on a substrate, an alignment insulating film having a concave portion disposed between the first and second alignment electrodes, a light-emitting device disposed on the alignment insulating film, first and second electrodes electrically connected to the light-emitting device, a thin-film transistor connected to one of the first and second electrodes, and a plurality of insulating films providing a trench disposed on the concave portion, the trench having a larger width than the concave portion, thereby improving emission efficiency.

Abstract: A motor includes a stator on which an armature coil is wound, a rotor disposed inside the stator, a superconducting field coil being wound thereon and, a controller configured to control the motor, in which the controller is configured to control an armature current supplied from an AC source to the armature coil and a field current supplied from a DC source to the field coil, and charge at least a certain ratio of the field coil before starting the motor.

Abstract: A battery cell pressing jig for assembling a battery cell includes a lower plate of which an upper surface is provided with a first pressing member for seating and arranging a plurality of battery cells thereon, an upper plate which is provided above the lower plate and of which a lower surface is provided with a second pressing member, on which the plurality of battery cells are seated in an arranged state, thereon, a pressing part configured to press both the upper plate and the lower plate toward the battery cell, and a plurality of sensing members coupled onto the upper plate to be electrically connected to the plurality of battery cells.

Abstract: Proposed is a bobbin for a superconducting motor by which cooling performance can be obtained and structural stability can be expected. The bobbin for a motor includes a bobbin body on which a superconducting coil is wound and a reinforcement including a reinforced plastic including reinforcing fiber and surrounding a side surface of the bobbin body.

Abstract: An electric motor includes a back yoke provided as an outermost layer of a stator, a stator core including a first teeth portion protruding from the back yoke toward the center portion of the stator and a second teeth portion protruding upwards from the external upper surface of the first teeth portion, a coil winding around the stator core, and a rotor in which a permanent magnet is mounted on the rotor core and which rotates through a magnetic interaction with the stator.

Abstract: Provided is a ReBCO-based high-temperature superconductor composition and a method of preparing the same comprising substituting a part of Gd with Ho, wherein the ReBCO-based high-temperature superconductor is represented by ReBa2Cu3O7-?, in which Re comprises or consists of Gd and Ho. The superconductor may improve the critical current density without a change in the critical temperature.

Abstract: A motor may include a stator with a coil disposed on an inner side thereof, a rotor at least partially surrounded by the coil and having an accommodation space in which a refrigerant for cooling the coil may be accommodated, a shaft connected to the rotor to rotate integrally with the rotor, and a pipe communicating with the accommodation space so that the refrigerant may be introduced from an external source and the refrigerant flows into the accommodation space therethrough.

Abstract: The present disclosure relates to a rotary machine configured to maximize a power by reducing an air gap between a stator and a rotor, for example, in a rotary machine such as a superconducting motor, and a method for manufacturing the same. The rotary machine may include: a stator; a rotor disposed to be separated from the stator by an air gap and configured to be rotatable; and a coating layer formed on at least one of a first opposite surface of the stator and a second opposite surface of the rotor, the first opposite surface and the second opposite surface facing each other.

Abstract: A superconducting motor system includes a stator and one or more rotors inside the stator. The rotors may form a plurality of poles, and may rotate when a current is applied thereto. The one or more rotors include: a superconductor winding portion for each pole and in which superconductor coils are wound to form at least two layers; a power supply portion configured to supply a current to the superconductor winding portion; and a resistor portion connecting the superconductor winding portion at least partly in parallel to the power supply portion. the resistor portion enables different currents to be able to flow through the at least two layers of the superconductor winding portion.

Abstract: A display apparatus includes a light-emitting device and an optical lens are stacked on an emission area of a device substrate. A black matrix and a touch electrode may be disposed on a non-emission area of the device substrate. An encapsulation unit covering the light-emitting device and an optical insulating layer covering the black matrix may be disposed on the emission area and the non-emission area of the device substrate. The touch electrode and the optical lens may be disposed on the optical insulating layer. A lens barrier may be disposed on the optical insulating layer. The optical lens may be surrounded by the lens barrier. Thus, in the display apparatus, a deform of the optical lens due to a reflow process may be prevented. Therefore, in the display apparatus, decreasing the quality of the image due to a process of forming the optical lens may be prevented.

Abstract: A display apparatus includes a light-emitting device and an optical lens are stacked on an emission area of a device substrate. A black matrix and a touch electrode may be disposed on a non-emission area of the device substrate. An encapsulation unit covering the light-emitting device and an optical insulating layer covering the black matrix may be disposed on the emission area and the non-emission area of the device substrate. The touch electrode and the optical lens may be disposed on the optical insulating layer. A lens barrier may be disposed on the optical insulating layer. The optical lens may be surrounded by the lens barrier. Thus, in the display apparatus, a deform of the optical lens due to a reflow process may be prevented. Therefore, in the display apparatus, decreasing the quality of the image due to a process of forming the optical lens may be prevented.

Abstract: A penetration test apparatus may include a penetration unit having a needle-shaped conductor formed in the shape of a sharp needle, a guide unit configured to push out the penetration unit such that the needle-shaped conductor bores a side of a battery cell, and a holder configured to receive the penetration unit. When the guide unit pushes the penetration unit, the needle-shaped conductor of the penetration unit can penetrate the side of the battery cell. A battery cell penetration test method using the penetration test apparatus is also disclosed.

Abstract: The present disclosure relates to a method for preparing a functional composite powder and a functional composite powder, and more particularly, to a method for preparing a functional composite powder, the method including the steps of: preparing a metal material powder and an implantation material; adding the metal material powder and the implantation material into a mixer; and forming a functional composite powder by applying kinetic energy to the metal material powder and the implantation material in the mixer, and a functional composite powder prepared by the method.

Abstract: A self-healing alloy contains 5 to 11% by weight of molybdenum (Mo), iron (Fe) as a remainder, and unavoidable impurities. A method for manufacturing the self-healing alloy includes heat treating the alloy or preparing an alloy raw material powder and sintering, homogenizing, and cooling the alloy raw material powder.

Abstract: A display apparatus including a light-emitting device and a method of forming the same are provided. The light-emitting device may be electrically connected to the driving circuit. A first planarization layer may be disposed on the driving circuit, a second planarization layer may be disposed on the first planarization layer, and the light-emitting device may be disposed on the second planarization layer. An upper surface of the second planarization layer toward the light-emitting device may be parallel with a surface of a device substrate supporting the light-emitting device and the driving circuit. Thus, in the display apparatus and the method of forming the same, decreasing the quality of an image due to differences in the generation position of the light emitted from the light-emitting device may be prevented.

Abstract: An axial flux motor structure uses a magnetic levitation force and a rotational force and includes a stator configured so that a coil unit is wound therearound, a permanent magnet unit configured to generate an air gap by generating a repulsive force with the coil unit, and a rotor configured to be fastened to the permanent magnet unit and coupled to a rotary shaft to rotate. A ratio of the number of slots of the stator and the number of poles of the rotor is 3:1.

Abstract: A motor includes a stator on which an armature coil is wound, a rotor disposed inside the stator, a superconducting field coil being wound thereon and, a controller configured to control the motor, in which the controller is configured to control an armature current supplied from an AC source to the armature coil and a field current supplied from a DC source to the field coil, and charge at least a certain ratio of the field coil before starting the motor.

Abstract: According to an embodiment, the aluminum sheet material for a separator of a fuel cell is used for forming a separator applied to a fuel cell stack and comprises 9-10 wt % of Mg; and the balance of Al and inevitable impurities, wherein the aluminum sheet material has cube texture and an R-cube texture formed therein. An aluminum sheet material for a separator in a fuel cell retains a thickness of 0.5 mm or less and exhibits excellent yield strength and elongation, and a manufacturing method therefor.