Abstract: A robot cleaner including: a main body, a driving unit configured to move the main body, and a suction device provided in the main body and configured to suction outside foreign substances, and the suction device may include a first suction member having a suction port provided at a bottom surface of the main body and configured to suction the foreign substances, and at least one second suction member formed to move relative to the first suction member and having a suction port configured to suction the foreign substances.

Abstract: The present invention relates to a superconducting coil having a structure in which an insulation layer electrically insulates the space between adjacent wound wires. The present invention provides a superconducting coil in which superconducting wires extended at a predetermined width in a lengthwise direction are stacked and wound, the superconducting coil comprising a metal-insulator transition (MIT) material layer interposed so as to electrically insulate space between adjacent superconducting wires in the stacking direction of the superconducting wires. According to the present invention, provided is a superconducting coil having high stability, and easily controlling electromagnetic properties including response properties and having a self-protective function against a quench phenomenon and the like during the driving of a magnet.

Abstract: The present invention relates to a stacking structure of a superconducting wire. The present invention provides a superconducting wire in which a metal substrate, a buffer layer, a superconducting layer, and a stabilizing layer are stacked, the superconducting wire including: a plurality of wedges which penetrates through the superconducting layer and the buffer layer to connect the stabilizing layer and the metal substrate. According to the present invention, it is possible to provide the superconducting wire of which mechanical strength is improved to have high resistance against to deterioration or delamination. Further, the present invention may provide the superconducting wire which is self-protectable against a quench phenomenon. Further, the present invention may provide the superconducting wire which is suitable for application of a high magnetic field.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: The robotic cleaner includes a cleaner body that is movable and a suction unit that is movable relative to the cleaner body in a vertical direction. The suction unit includes an inlet for sucking impurities from the surface to be cleaned, and at least one support unit for spacing the inlet and the surface to be cleaned. With the configuration, the foreign substance suction efficiency from the surface to be cleaned may be improved, and a constant gap between the suction portion and the surface to be cleaned may be maintained.

Abstract: Disclosed is a robot cleaner capable of reducing the material cost thereof by use of fewer motors, and performing wet cleaning while travelling in all directions and rubbing the floor surface, the robot cleaner includes a plurality of motors generating driving forces, a plurality of pad assemblies configured to rotate by receiving a driving force from one of the plurality of motors, and provided in a tilted manner so that a bottom surface of each of the plurality of pad assemblies has an uneven frictional force with respect to a floor surface, and a tilt gear unit configured to simultaneously vary tilting directions of the plurality of pad assemblies by receiving a driving force from another one of the plurality of motors, wherein the robot clean can travel in all directions depending on a tilting direction and a rotational direction of each of the plurality of pad assemblies.

Abstract: A suction nozzle, and a vacuum cleaner, and a robot cleaner includes a housing having a suction port formed on a bottom surface thereof and a suction flow path formed on an inside thereof to communicate with the suction port, and a vibration cleaning unit arranged on the suction flow path to pass therethrough air including pollutants that flows in through the suction port, wherein the vibration cleaning unit includes a vibration source, a vibration transfer frame configured to accommodate the vibration source, and a vibration bar configured to receive vibration transferred from the vibration transfer frame to resonate.

Abstract: Disclosed is a vacuum cleaner including a flow path to guide air suctioned or discharged and a resonator connected to the flow path. The resonator is configured to change a resonance frequency to be canceled. Therefore, when the noise generated by changing operation modes of the vacuum cleaner is changed, the noise may be cancelled by changing the resonance frequency of the resonator.

Abstract: A robot cleaner including: a main body, a driving unit configured to move the main body, and a suction device provided in the main body and configured to suction outside foreign substances, and the suction device may include a first suction member having a suction port provided at a bottom surface of the main body and configured to suction the foreign substances, and at least one second suction member formed to move relative to the first suction member and having a suction port configured to suction the foreign substances.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: A vacuum cleaner includes an actuator connected to a suction hose to rotate in left and right directions centering on a first rotation axis, or in forward and backward directions centering on a second rotation axis according to movement of the suction hose, a first displacement sensor detecting rotational displacement of the actuator in the left and right directions, and a second displacement sensor detecting rotational displacement of the actuator in the forward and backward directions, and controls activation of a plurality of driving motors according to the rotational displacement of the actuator in the left and right directions and in the forward and backward directions, which are detected by the first displacement sensor and the second displacement sensor, thereby advancing or rotating the main body in the left and right directions.

Abstract: Disclosed is a method for manufacturing a superconducting wire material having a laminated structure. The present invention provides a method for manufacturing a laminated superconducting wire material, comprising the steps of: providing a deposition substrate having a predetermined width; sequentially forming, on the deposition substrate, a laminated structure including a buffer layer, a superconducting layer and a stabilization layer, thereby forming, on both sides of the deposition substrate, regions in which a metal substrate is exposed in the width direction; providing a lamination substrate, having a width corresponding to the deposition substrate, to the laminated structure; and providing solder to the regions, in which the metal substrate is exposed, to thereby bond the deposition substrate and the lamination substrate.

Abstract: A high-temperature superconducting wire material comprising: a pre-superconducting wire material layer formed by forcibly removing a metal substrate from a superconducting wire material formed by including the metal substrate, a buffer layer formed on the upper surface of the metal substrate and a superconducting conductive layer formed on the upper surface of the buffer layer; a silver (Ag) protective layer formed on the lower surface of the pre-superconducting wire material layer; and a copper (Cu) protective layer formed on the lower surface of the Ag protective layer.

Abstract: Disclosed is a robot cleaner capable of reducing the material cost thereof by use of fewer motors, and performing wet cleaning while travelling in all directions and rubbing the floor surface, the robot cleaner includes a plurality of motors generating driving forces, a plurality of pad assemblies configured to rotate by receiving a driving force from one of the plurality of motors, and provided in a tilted manner so that a bottom surface of each of the plurality of pad assemblies has an uneven frictional force with respect to a floor surface, and a tilt gear unit configured to simultaneously vary tilting directions of the plurality of pad assemblies by receiving a driving force from another one of the plurality of motors, wherein the robot clean can travel in all directions depending on a tilting direction and a rotational direction of each of the plurality of pad assemblies.

Abstract: Disclosed herein is a method of preparing a yttria solution for a buffer layer of a substrate, including the steps of: (a) mixing yttrium acetate tetrahydrate with methanol to form a mixture and then stirring the mixture; (b) injecting diethanolamine as a chelating agent into the mixture of the step (a) and then stirring the mixture to synthesize a composite; and (c) filtering the composite synthesized in the step (b) using a filter to obtain a sol. The method is advantageous in that the yttria solution prepared in this method is applied onto a substrate to flatten the substrate, and is used to form a diffusion barrier serving as a buffer layer for preventing the diffusion of a substrate material.

Abstract: Disclosed is a deposition apparatus for depositing a specific substance on an elongate substrate such as an elongate strip of tape or film. The apparatus includes a vacuum chamber, supply reel and the for reel for supplying elongate substrate in rolled form, a drum, disposed in the vacuum chamber, the drum having a helically-shaped guide groove formed along an outer surface of the drum for receiving the elongate substrate supplied from the supply reel to be wound in the guide groove and to subsequently feed the elongate substrate to a retreat reel to wind thereon upon rotation of the drum, and a deposition source material for depositing a material onto a surface of the elongate substrate which is wound on the drum.

Abstract: A rolled superconducting article includes: a cylindrical bobbin having a post in a cylindrical shape; a superconducting strip wound on the cylindrical bobbin in a rolled shape with a predetermined tension applied, wherein the superconducting strip is formed of a superconducting thin film, which is coated with a metal coating layer on a facing surface of the superconducting thin film, and a stabilizing substrate wound on the superconducting strip, wherein the stabilizing substrate is coated with a metal coating layer on a facing surface of the stabilizing substrate; an anti-bonding substrate wound on an outer surface of the stabilizing substrate with a predetermined tension applied; wherein the superconducting thin film is thermally adhered to the stabilizing substrate by heat-treating the rolled superconducting strip with the anti-bonding substrate wound therearound.

Abstract: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip.

Abstract: Disclosed herein is a deposition apparatus with a guide roller for a long superconducting tape. The deposition apparatus has a supply reel which is provided in a vacuum chamber and rotated to supply the tape, a feed and deposition unit which is spaced apart from the supply reel and vacuum deposits a superconducting layer on the tape while feeding the tape, and a collection reel which is spaced apart from the feed and deposition unit and is rotated to collect the vacuum-deposited tape.