Abstract: The present invention relates to a compound represented by chemical formula I, a stereoisomer thereof, a pharmaceutically acceptable salt thereof, a hydrate or solvate thereof, and a pharmaceutical composition comprising same.

Abstract: There is provided a composite oil seal having an electric corrosion prevention function, which is mounted on a shaft in a motor housing to prevent leakage of oil in the motor housing. The composite oil seal includes a seal main body, which is formed of an elastic material and has an outer circumferential surface formed to be in tight contact with an inner circumferential surface of the motor housing and at least one lip protruding inwards so as to be in contact with an outer circumferential surface of the shaft, and an electrical path fabric, which is formed by weaving metallic yarns and is mounted to the seal main body to electrically connect the shaft to the motor housing so that current induced in the shaft flows to the motor housing.

Abstract: A method by which a chatbot application executed by at least one processor of a terminal provides a chatbot for rehabilitation education for a hearing loss patient, according to an embodiment of the present disclosure, includes: executing the chatbot that provides hearing loss rehabilitation content that is interactive learning content for hearing rehabilitation education for the hearing loss patient; determining the type of hearing loss rehabilitation content on the basis of the executed chatbot; providing the hearing loss rehabilitation content according to the determined type; acquiring user response data regarding an audio quiz of the provided hearing loss rehabilitation content; performing a correct/wrong processing process for determining whether or not the acquired user response data is a correct answer, and providing a result of the performed correct/wrong processing process.

Abstract: The system according to the present invention disclosure includes a model generation module to generate a digital twin model including a replication model of a physical component of the ammonia cracking plant; an input module to input dynamic energy requirement and output information of an ammonia cracking apparatus included in the ammonia cracking plant into the digital twin model; an emergency condition imposition module to impose, for a preset emergency scenario, an emergency condition on the replication model of the physical component; a data collection and comparison module to collect data from the digital twin model under the imposed emergency condition, and compare first data when the emergency condition is imposed and second data when the emergency condition is not imposed; and a scenario generation module to generate a control scenario for the preset emergency scenario based on comparison results of the first data and the second data.

Abstract: A system for decomposing ammonia includes a cracker decomposing ammonia to generate hydrogen, a heater heating the cracker, a fuel cell reacting hydrogen to supply a power in a battery, a bypass line connecting a pipe that connects the cracker and the fuel cell with a pipe connecting the fuel cell and the heater, a sensor for sensing an internal temperature of the cracker, and a controller for receiving an internal temperature information of the cracker from the sensor. The controller is configured to receive a residual ammonia information in the cracker, and to control an operation of the bypass line based on at least one of the internal temperature information and the residual ammonia information.

Abstract: A system for controlling an ammonia reactor includes a sensor measuring an internal temperature of a cracker, a controller receiving temperature information collected from the sensor, a hydrogen supplier configured to determine a hydrogen supply amount into the cracker according to a first signal from the controller, and an ammonia supplier configured to determine an ammonia supply amount into the cracker according to a second signal from the controller. The controller is configured to receive ammonia supply amount information from the ammonia supplier, and to determine the first signal based on the temperature information and the ammonia supply amount information.

Abstract: An apparatus and a method for controlling a vehicle equipped with an ammonia fuel cell. The apparatus of the present disclosure may include: an ammonia tank configured to store ammonia; a cracker configured to decompose the ammonia supplied from the ammonia tank into hydrogen; and a controller configured to calculate a predicted hydrogen consumption amount based on at least one of real-time driving information and driving pattern information, and control at least one of a supply amount of ammonia and internal conditions of the cracker based on the predicted hydrogen consumption amount.

Abstract: Disclosed are a system and a method for optimizing a gas flow of ammonia in an industrial plant. The system according to the present invention disclosure may include: a physical plant; a digital twin model for the physical plant; a data collection module configured to acquire real-time data from the physical plant; a simulation module configured to simulate at least one scenario using the digital twin model and identify optimal operating conditions for the gas flow of ammonia based on simulation results; a feedback loop configured to implement a feedback loop between the digital twin model and the physical plant to adjust the physical plant based on the simulation results; and a performance monitoring module configured to monitor performance of the physical plant to track effectiveness of the optimization process.

Abstract: A hydrogen cracking apparatus includes a driver operated by a power supplied from a battery, a reactor that decomposes ammonia to generate hydrogen, a heater for heating the reactor, a fuel cell reacting hydrogen to generate power and supply at least part of the generated power to the battery, a sensor measuring internal temperature information of the reactor, and a controller receiving the internal temperature information transmitted by the sensor. The controller is configured to receive power consumption information of the battery, and to control an operation of the heater by comparing an expected power consumption expected when driving the heater and an expected temperature increase value expected when driving the reactor.

Abstract: An adsorption tower according to embodiments of the present disclosure comprises the plurality of beds, an inlet port, an outlet port, at least one sensor unit for each of the plurality of beds, a plurality of connection pipes which connect at least two of the inlet port, the outlet port and the plurality of beds, a plurality of valves connected to the plurality of connection pipes, a memory configured to store one or more instructions, and a processor configured to execute the one or more instructions stored in the memory. The processor is configured to determine a fluid supply order to the plurality of beds according to adsorption values in the plurality of beds measured by the sensor units, and control the fluid supply route by opening and closing the valves according to the determined fluid supply order.

Abstract: An ammonia adsorption tower operating control device according to the present disclosure includes: a sensor unit configured to measure an internal state of an adsorption tower; a memory configured to store one or more instructions; a processor configured to execute one or more instructions stored in the memory; and a operating unit configured to operate the adsorption tower according to an adsorption cycle and a desorption cycle set based on the internal state of the adsorption tower. The processor is configured to output corresponding adsorption cycle and desorption cycle according to sensing data of the sensor unit using a trained artificial intelligence model. When the sensing data is within a preset optimal range, transmit a command to operate the adsorption tower according to the output adsorption cycle and desorption cycle to the operating unit.

Abstract: An apparatus and a method for controlling an ammonia fuel cell vehicle. The apparatus and method provide for storing ammonia in an ammonia tank; decomposing the ammonia transferred from the ammonia tank to a cracker into hydrogen; controlling at least one of an ammonia supply amount to be supplied to the cracker and conditions of the cracker; calculating a predicted hydrogen consumption amount based on at least one of driving information and battery information; and controlling at least one of the ammonia supply amount and the conditions of the cracker based on the calculated predicted hydrogen consumption amount.

Abstract: The present disclosure relates to an ultraviolet sensor, and an object of the present disclosure is to provide a simple, low-cost, and highly efficient ultraviolet sensor by aerosol deposition. For this, an ultraviolet sensor includes a substrate, a polycrystalline film formed by spraying powder having an energy bandgap of 3 eV to 11 eV and an average central particle size of 0.1 ?m to 5 ?m onto the substrate in a vacuum at a speed of 100 m/s to 500 m/s through a nozzle, wherein the polycrystalline film has an average central particle size of 1 nm to 500 nm, and at least two electrodes provided on the polycrystalline film.

Abstract: Provided is an ultrasound device including a controller and an ultrasound transceiver. The controller may classify a plurality of elements included in an ultrasound array into a plurality of sector elements, provide a transmission control signal for selecting one of the plurality of sector elements as a transmission sector, and provide a reception control signal for selecting one of the plurality of sector elements as a reception sector. The ultrasound transceiver may transmit a transmission ultrasound signal to an object by selecting the transmission sector from the plurality of sector elements included in the ultrasound array based on the transmission control signal, and receiving a reception ultrasound signal reflected from the object by selecting the reception sector from the plurality of sector elements based on the reception control signal.

Abstract: A semiconductor device may include: a substrate including a peripheral circuit region and a cell region having a first cell region and a second cell region, the second cell region being farther from the peripheral circuit region than the first cell region; a plurality of memory cells disposed at intersection regions between first conductive lines and second conductive lines, respectively, the memory cells including a first memory cell disposed in the first cell region and a second memory cell disposed in the second cell region, wherein a first electrode layer of the first memory cell and a second electrode layer of the second memory cell include a conductive material, and wherein the first electrode layer further includes a first dopant that increases a resistivity of the conductive material.

Abstract: A forming method of an yttrium oxide fluoride (YOF) coating film and a (YOF) coating film formed thereby are disclosed. The YOF coating film has no or extremely small pores therein and a nanostructure to increase light transmittance thereof, and has high hardness and high bonding strength and thus can protect a transparent window of a display device. The method for forming an YOF coating film involves the steps of: providing pretreated YOF powder having a particle diameter ranging from 0.1 to 12 ?m; receiving a transfer gas supplied from a transfer gas supply unit and receiving the pretreated YOF powder supplied from a powder supply unit to transfer the pretreated YOF powder in an aerosol state; and colliding/smashing (spraying) the pretreated YOF powder transferred in the aerosol state with/onto a substrate in a process chamber to form an YOF coating film on the substrate.

Abstract: An in-situ X-ray analysis apparatus includes: a potentiostat connected to an in-situ electrochemical cell and configured to control a voltage, current, and time of the in-situ electrochemical cell, or to record voltage, current, resistance, capacity, and time information of the in-situ electrochemical cell; an X-ray analysis apparatus configured to obtain X-ray diffraction information of the in-situ electrochemical cell; and a controller connected to the X-ray analysis apparatus and the potentiostat and configured to provide or receive a signal to or from each of the X-ray analysis apparatus and the potentiostat.

Abstract: The present invention relates to a method for forming a ceramic coating having improved plasma resistance and a ceramic coating formed thereby. The present invention discloses the method for forming the ceramic coating having improved plasma resistance and the ceramic coating formed thereby, comprising the steps of: receiving, from a powder supply portion, a plurality of ceramic powders having a first powder particle size range, and transporting the powders using a transport gas; and forming a ceramic coating in which a plurality of first ceramic particles within a first coating particle size range and a plurality of second ceramic particles within a second coating particle size range, which is larger than the first coating particle size range, by causing the transported ceramic powders to collide with a substrate inside a process chamber, at the speed of 100 to 500 m/s so as to be pulverized.

Abstract: Provided is an in-situ X-ray analysis apparatus including a potentiostat connected to an in-situ electrochemical cell and configured to adjust voltage, current, and time of the in-situ electrochemical cell or to record information regarding voltage, current, resistance, capacity, and time information of the in-situ electrochemical cell; an X-ray analysis apparatus configured to obtain X-ray diffraction information regarding the in-situ electrochemical cell; and a controller connected to the X-ray analysis apparatus and the potentiostat and configured to provide or receive signals to or from the X-ray analysis apparatus and the potentiostat.

Abstract: A forming method of an yttrium oxide fluoride (YOF) coating film and a (YOF) coating film formed thereby are disclosed. The YOF coating film has no or extremely small pores therein and a nanostructure to increase light transmittance thereof, and has high hardness and high bonding strength and thus can protect a transparent window of a display device. The method for forming an YOF coating film involves the steps of: providing pretreated YOF powder having a particle diameter ranging from 0.1 to 12 ?m; receiving a transfer gas supplied from a transfer gas supply unit and receiving the pretreated YOF powder supplied from a powder supply unit to transfer the pretreated YOF powder in an aerosol state; and colliding/smashing (spraying) the pretreated YOF powder transferred in the aerosol state with/onto a substrate in a process chamber to form an YOF coating film on the substrate.