Abstract: One embodiment of the present disclosure provides a magnetic fluid seal including a rotating shaft, a pole piece disposed to surround the rotating shaft, a plurality of trenches formed on any one of the rotating shaft and the pole piece, a magnetic fluid provided between the other one of the rotating shaft and the pole piece and at least one of ends of the plurality of trenches, a blocking member provided in a space between the plurality of trenches, and a permanent magnet configured to apply a magnetic force to the magnetic fluid.

Abstract: The present disclosure relates to an organic light emitting diode and an organic light emitting device including the same. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3. According to an aspect of the present disclosure, it is allowed to provide an OLED and an organic light emitting device having high emitting efficiency and/or improved lifespan.

Abstract: An air conditioner housing of a vehicle includes a body having an internal space through which air flows and having a heat exchanger mounted at the internal space. The heat exchanger cools the air. A discharge port is at a lower end of the body and provides fluid communication between the internal space and an exterior of the body and discharges condensate water generated from the heat exchanger to the exterior. A plurality of blocking portions is disposed around the discharge port and protrudes into the internal space, thereby preventing foreign substances inside the body from directly blocking the discharge port.

Abstract: According to embodiments, modeling through evaluation of thermal-hydraulic analysis of a unique containment facility may be provided. Also, orders for nuclear power plants in other countries may be obtained, and a relative technological advantage may be achieved among nuclear power plant developing countries. In addition, a power plant may be designed through conservative and realistic modeling, and costs required for power plant design may be reduced by optimizing a design margin of a containment facility.

Abstract: A display device comprises a substrate; a circuit array layer comprising pixel drivers, data lines, first dummy lines, and second dummy lines; and a light emitting array layer. The display area comprises middle, first side, and second side regions. The data lines comprise first, second, and third data lines disposed in the middle, first side, and second side regions, respectively. The first dummy lines comprise a first data detour line disposed in the first side region and adjacent to a part of the second data line, and auxiliary lines. The second dummy lines comprise a second data detour line configured to connect the first data detour line to the third data line, and additional lines. The auxiliary lines comprise a bias auxiliary line to which a bias power is applied; and a second power auxiliary line to which a second power is applied.

Abstract: Provided are a system for business process automation and a method thereof. The system according to some embodiments may include a connect manager configured to register and manage application programming interface (API) information for services, a process execution engine configured to execute a target business process comprising a particular service task, which is a task using a particular service provided by a service module, and a connect broker configured to acquire API information for the particular service, registered through the connect manager, during execution of the target business process in response to a request from the process execution engine, and process the particular service task by sending a request for the particular service to the service module using the acquired API information.

Abstract: Proposed is a vagus nerve stimulator having at least two electrodes that are configured to be worn on at least one of the left and right ears and are configured to generate electrical stimulation on the vagus nerve in the auricle. The vagus nerve stimulator may include: a body part configured to be located on a side of a wearer's ear; a first electrode configured to be inserted into and make contact with the external acoustic meatus of the wearer's ear; a second electrode configured to make contact with the cymba concha of the wearer's ear; a first electrode fixing part protruding from the body part and having a first electrode at an end thereof; and a second electrode fixing part protruding from the body part and having a second electrode at an end thereof.

Abstract: An air conditioner for a vehicle with an improved structure so that hot air is not directly discharged to a defrost vent in a floor mode or a mix mode, includes an air conditioning case in which an air flow path is formed, and a cooling heat exchanger and a heating heat exchanger provided sequentially on the air flow path of the air conditioning case in an airflow direction, wherein a defrost vent, a face vent, and a floor vent are formed on the air conditioning case, wherein the defrost vent includes a first defogging flow path allowing air passing through the heating heat exchanger to be discharged directly, and a second defogging flow path allowing air passing through the cooling heat exchanger or the heating heat exchanger to be mixed and discharged therethrough.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: An air conditioner includes an outdoor unit, a plurality of mode change devices including at least one mode changer including a branch duct and a changing valve, and configured to receive a control signal from the outdoor unit to control an operation of the at least one mode changer. A plurality of indoor units are connected to the outdoor unit or the plurality of mode change devices. The outdoor unit may determine an operation mode to operate the plurality of mode change devices a plurality of times. Each of the plurality of indoor units may detect a temperature change of an indoor heat exchanger in response to the operation of the mode change devices, to determine the number of connected mode changers and a connectable mode changer candidate group based on the temperature change of the indoor heat exchanger.

Abstract: Disclosed are an anode including a core part and a binder and a secondary battery including the same. Particularly, a coating layer including a polymer is provided between the core part and the binder and thus blocks electron transport paths from the core part to the binder. Thereby, decomposition of the binder is suppressed, and thus, the charge capacity and the initial Coulombic efficiency of the secondary battery are increased.

Abstract: Provided are an insulation shielding member which may insulate a coil and a stator core from each other, and simultaneously, shield an electric field caused by the coil, and a motor using the same. The insulation shielding member of the present disclosure may perform not only an insulation function but also a shielding function simultaneously, and shield the electric field caused by the coil to prevent corrosion from occurring in a bearing, thereby reducing the vibration and noise of the motor.

Abstract: A novel pyrimidine compound of the following formula I, a solvate, a stereoisomer or a pharmaceutically acceptable salt thereof are disclosed. Compositions containing the pyrimidine compound, solvate, stereoisomer or pharmaceutically acceptable salt thereof and methods of preventing or treating tyrosine kinase domain mutant EGFR-overexpression-associated diseases are disclosed.

Abstract: An optical imaging system includes: a first lens group including a plurality of lenses; a second lens group including a plurality of lenses; a first reflecting member disposed on an object side of the first lens group; and a plurality of second reflecting members arranged between the second lens group and an image sensor. One or both of the first lens group and the second lens group is movable along an optical axis, an interval along the optical axis between the first lens group and the second lens group is varied between a first interval and a second interval smaller than the first interval, and as at least one of the first lens group and the second lens group is moved, one or more of the second reflecting members are moved.

Abstract: A photomask according to an exemplary embodiment includes: a mask substrate; and a first test pattern and a second test pattern disposed along a first edge of the mask substrate, wherein the first test pattern has a first outer shape and a first inner shape, the second test pattern has a second outer shape, and the second outer shape of the second test pattern is larger than the first inner shape of the first test pattern and smaller than the first outer shape of the first test pattern.

Abstract: A battery fire detection device according to an embodiment includes: a first sensor configured to detect whether a gas vent of a battery cell is opened; a second sensor configured to detect a temperature of the battery cell; and a controller configured to determine whether there is a risk of fire or whether a fire occurs in the battery cell based on detection results of the first sensor and the second sensor.

Abstract: The present disclosure relates to a battery, and more particularly to a battery electrode. According to some implementations of the present disclosure, a method for manufacturing a battery electrode includes: forming a mixture of a polymer powder and an active material into a fiber; weaving the fiber into a woven film; and carbonizing the woven film.

Abstract: A chemical mechanical polishing method is provided. A chemical mechanical polishing method comprising providing a polishing pad, supplying a first purging compound having a first temperature onto the polishing pad, supplying a first slurry having a third temperature onto the polishing pad supplied with the first purging compound, supplying a second purging compound having a second temperature lower than the first temperature onto the polishing pad, and supplying a second slurry having a fourth temperature lower than the third temperature onto the polishing pad supplied with the second purging compound.

Abstract: An example of the present invention provides a metal composite catalyst for ammonia decomposition and hydrogen production including a carrier; and Ni metal particles dispersed on a surface of the carrier or inside a pore, in which a content of the Ni metal particle is 15 to 70 parts by weight with reference to 100 parts by weight of the metal composite catalyst, and a diameter of the Ni metal particle is 60 nm or less. More specifically, the metal composite catalyst according to an example of the present invention is manufactured by an ultrasonic method, includes an aging step, and exhibits high efficiency and economy in ammonia decomposition and hydrogen production processes.

Abstract: A method for transmitting data in a wireless communication system, the method includes transmitting, by a first station, a plurality of request to send (RTS) frames to a second station through a plurality of subchannels, each of the plurality of RTS frames being transmitted through a corresponding one of the plurality of subchannels, each of the plurality of subchannels having a 20 megahertz (MHz) bandwidth; receiving, by the first station, at least one clear to send (CTS) frame in response to at least one of the plurality of RTS frames from the second station through at least one idle subchannel of the plurality of subchannels; and transmitting, by the first station, a data frame to the second station after receiving the at least one CTS frame, wherein each of the plurality of RTS frames includes first channel information related to the plurality of subchannels.