Abstract: One embodiment of the present invention provides a flame doping method. Specifically, the present invention provides a flame doping method, which does not significantly change crystallinity, does not damage a substrate even while applying a high temperature, is usable as a doping method suitable for mass production, is advantageous in a process difficulty and a cost compared to other doping processes (thermal diffusion and ion implantation), and has high process stability.

Abstract: An embodiment of the present invention provides an electrocatalyst composite including a 2D transition metal chalcogenide material for water electrolysis and a method for manufacturing the same. According to one embodiment of the present invention, the electrocatalyst composite for water electrolysis is manufactured by hetero-junctioning 2D nickel cobalt sulfide (NiCo2S4) and 2D rhenium sulfide (ReS2) to allow for high activity and application over a broad pH range during water electrolysis.

Abstract: One embodiment of the present invention provides a flame doping method. Specifically, the present invention provides a flame doping method, which does not significantly change crystallinity, does not damage a substrate even while applying a high temperature, is usable as a doping method suitable for mass production, is advantageous in a process difficulty and a cost compared to other doping processes (thermal diffusion and ion implantation), and has high process stability.

Abstract: Embodiments of the present disclosure relate to a polyurethane foam, a refrigerator including the same, and a method of manufacturing polyurethane foam. According with the present inventions, a refrigerator, comprising a polyurethane foam formed of a composition for preparing polyurethane, includes a cabinet; a door configured to open and close the cabinet; and a thermal insulation disposed in at least one of the cabinet and the door, wherein the thermal insulation includes a polyurethane foam-forming polyol system comprising a fiber having hydroxyl groups; and isocyanate.

Abstract: Embodiments of the present disclosure relate to a polyurethane foam, a refrigerator including the same, and a method of manufacturing polyurethane foam. According with the present inventions, a refrigerator, comprising a polyurethane foam formed of a composition for preparing polyurethane, includes a cabinet; a door configured to open and close the cabinet; and a thermal insulation disposed in at least one of the cabinet and the door, wherein the thermal insulation includes a polyurethane foam-forming polyol system comprising a fiber having hydroxyl groups; and isocyanate.

Abstract: The washing machine includes a tub mounted in a cabinet, a drum mounted in the tub, a shaft that transmits a driving force from a motor to the drum, front and rear bearings mounted on an outer circumference of opposite end portions of the shaft, a bearing housing built in a central portion of a rear wall of the tub to support the front bearing, a rotor coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor, and a connector of the rotor that serration coupled to the outer circumference of the shaft in front of the rear bearing so as to transmit rotating power from the rotor to the shaft. A bearing bracket may be fixed to the rear wall of the tub so as to cover an outside of the rotor and support the rear bearing.

Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.

Abstract: A vacuum cleaner and a method of controlling the vacuum cleaner are provided. The vacuum cleaner may include a main body, a dust collection device mounted in the main body, at least one compression member that compresses the dust in the dust collection device, and a driver that drives the compressing member.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.

Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a main body, a dust collector, at least one pressing member, and a driver. The dust collector may be detachably attached to the main body and may include a dust storage chamber. The at least one pressing member may compress dust stored in the dust storage chamber. The driver may be disposed in the dust collector and actuate the at least one pressing member.

Abstract: A washing machine includes a tub made of plastic to store water therein and a drum rotatably installed in the tub to hold laundry therein. A shaft passes through the tub and connects to the drum to transmit driving power from a motor to the drum. A wall having a recessing part and a projecting part is formed on an inner surface or outer surface thereof in a circumferential direction. A bearing housing has a stator fastening part where the stator fastening part has a recessing part and a projecting part corresponding with the recessing part and the projecting part of the wall in a circumferential direction, and a stator of the motor is mounted on the stator fastening part and a rotor of the motor is connected to a rear part of the shaft and surrounding the stator.

Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub part injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radical rib formed on the recessing part.

Abstract: The washing machine includes a tub mounted in a cabinet, a drum mounted in the tub, a shaft that transmits a driving force from a motor to the drum, front and rear bearings mounted on an outer circumference of opposite end portions of the shaft, a bearing housing built in a central portion of a rear wall of the tub to support the front bearing, a rotor coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor, and a connector of the rotor that serration coupled to the outer circumference of the shaft in front of the rear bearing so as to transmit rotating power from the rotor to the shaft. A bearing bracket may be fixed to the rear wall of the tub so as to cover an outside of the rotor and support the rear bearing.

Abstract: A drum type washing machine is provided. The washing machine includes a tub mounted in a cabinet, a drum mounted in the tub, a shaft that transmits a driving force from a motor to the drum, front and rear bearings mounted on an outer circumference of opposite end portions of the shaft, a bearing housing built in a central portion of a rear wall of the tub to support the front bearing, a rotor coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor, and a connector of the rotor that serration coupled to the outer circumference of the shaft in front of the rear bearing so as to transmit rotating power from the rotor to the shaft. A bearing bracket may be fixed to the rear wall of the tub so as to cover an outside of the rotor and support the rear bearing.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.