Abstract: A boil-off gas treatment system according to the present invention includes: a storage unit in which a liquefied gas is stored; a subcooling unit connected to the storage unit and configured to subcool boil-off gas generated from the liquefied gas stored in the storage unit to generate subcooled boil-off gas; a compression unit connected to the subcooling unit and configured to receive the subcooled boil-off gas from the subcooling unit and compress the subcooled boil-off gas to generate compressed subcooled boil-off gas; and a phase change unit connected to the compression unit, configured to receive the compressed subcooled boil-off gas from the compression unit, and configured to induce a phase change of the compressed subcooled boil-off gas into a liquid/solid-based slush state.

Abstract: An automatic ship design system and method using a conversational artificial intelligence model are disclosed. According to an embodiment of the present invention, the automatic ship design system using a conversational artificial intelligence model includes a memory in which one or more instructions, ship design knowledge information, and the conversational artificial intelligence model are stored; a communication unit for communication with a user terminal; and a processor configured to communicate with the user terminal via the communication unit and execute the one or more instructions stored in the memory, wherein the processor is configured to perform a conversation with the user through the user terminal by using the conversational artificial intelligence model, receive ship design variables through the conversation, and derive ship design information in real time using the ship design knowledge information according to the received ship design variables.

Abstract: Disclosed are a catalyst for producing synthesis gas through dry autothermal reforming reaction without a carbon dioxide capture process and a method of manufacturing the same, in which industrial process flue gas is directly utilized as reformer feedstock in a process for producing synthesis gas at a pilot demonstration (20 tons per year) scale through non-capture carbon dioxide chemical conversion by converting low-concentration carbon dioxide in industrial process flue gas and for implementing a carbon dioxide conversion process at a scale of 10,000 tons per year.

Abstract: Disclosed is a pyrolysis reaction method including a raw material input step of inputting a raw material and acquiring first data, a pyrolysis reaction step of pyrolyzing the input raw material, a reactant discharge step of discharging a pyrolyzed reactant and acquiring second data, an image sample collection step of additionally obtaining image samples, a DB storage step of normalizing the obtained image samples into time series data and storing RGB code values in a DB, a labeling step of assigning labels to the first data and the second data, a data processing step of comparing the first data and the second data with the data stored in the DB to generate third data and fourth data, and a control value deriving step of deriving control values of a pyrolysis temperature and a pyrolysis time based on the third data and the fourth data.

Abstract: A carbon dioxide separation and recovery system includes an exhaust gas sensible heat recovery part which recovers sensible heat of exhaust gas and generates electric energy by using the sensible heat of the recovered exhaust gas; a moisture removal part which is connected to the exhaust gas sensible heat recovery part and removes moisture contained in the sensible heat recovery exhaust gas from which the sensible heat is recovered by using the electric energy generated in the exhaust gas sensible heat recovery part; and a separation part which is connected to the moisture removal part to receive the sensible heat recovery exhaust gas from which moisture is removed by the moisture removal part, and separates solid carbon dioxide from the sensible heat recovery exhaust gas from which moisture is removed.

Abstract: A methane production system includes: a raw material gas supply part configured to store and supply a raw material gas; a catalyst supply part configured to store and supply a catalyst; a methanation reaction part connected to the raw material gas supply part and the catalyst supply part and configured to generate a reaction gas by performing a methanation reaction using the raw material gas and the catalyst supplied from the raw material gas supply part and the catalyst supply part; a temperature measurement part connected to the methanation reaction part and configured to measure a temperature of the methanation reaction part; a temperature maintaining part connected to the raw material gas supply part; and a raw material gas injection part connected to the raw material gas supply part to receive the raw material gas from the raw material gas supply part.

Abstract: There is provided a scaffold for bone regeneration which is adapted to be implanted at a bone defect site of a bone. The scaffold comprises a main support member configured to be fixed to the bone, and a load supporting unit configured to be installed in the bone defect site of the bone to selectively bear a load applied to the bone. The load supporting unit includes one or two supporting pieces to be installed in the bone defect site of the bone to selectively bear a load applied to the bone. The supporting piece has at one end portion a contact portion to be brought into contact with and fixed to a compact bone in the bone defect site of the bone. The other end portion of the supporting piece is selectively coupled to the main support member.

Abstract: There is provided a scaffold for bone regeneration which is adapted to be implanted at a bone defect site of a bone. The scaffold comprises a main support member configured to be fixed to the bone, and a load supporting unit configured to be installed in the bone defect site of the bone to selectively bear a load applied to the bone. The load supporting unit includes one or two supporting pieces to be installed in the bone defect site of the bone to selectively bear a load applied to the bone. The supporting piece has at one end portion a contact portion to be brought into contact with and fixed to a compact bone in the bone defect site of the bone. The other end portion of the supporting piece is selectively coupled to the main support member.

Abstract: The present invention relates to a cylindrical non-melt and partial melt type entrained flow bed gasifier with one or more burners mounted on the top thereof for supplying pulverized raw coal and oxidizer thereto, wherein each of the burners comprises three or four pipes so as to form a central supplying line for injecting the pulverized coal with a carrier gas into the gasifier, a primary oxidizer annular region around the central supplying line having a plurality of primary oxidizer supplying bores for injecting primary oxidizer vertically or at an angle to the injection region of the pulverized coal supplied through the central supplying line so as to direct the pulverized coal to the central region, and an outer cooling annular region around the primary oxidizer annular region for flowing cooling water, which is operated preferably at a temperature range of 1,250˜1,450° C., or of 1,150˜1,500° C. according to the properties of the coal.

Abstract: Disclose is a method for preparing a cathode material for a lithium secondary battery, the method comprising the steps of: preparing an amorphous silicon oxide; using the prepared silicon oxide as a starting material; and milling the amorphous silicon oxide, a lithium silicon oxide and a transition metal silicon oxide at a predetermined ratio, drying the milled material, and heat-treating the dried material in an atmosphere of inert gas, thereby preparing a lithium transition metal silicon oxide.

Abstract: The present invention relates to a cylindrical non-melt and partial melt type entrained flow bed gasifier with one or more burners mounted on the top thereof for supplying pulverized raw coal and oxidizer thereto, wherein each of the burners comprises three or four pipes so as to form a central supplying line for injecting the pulverized coal with a carrier gas into the gasifier, a primary oxidizer annular region around the central supplying line having a plurality of primary oxidizer supplying bores for injecting primary oxidizer vertically or at an angle to the injection region of the pulverized coal supplied through the central supplying line so as to direct the pulverized coal to the central region, and an outer cooling annular region around the primary oxidizer annular region for flowing cooling water, which is operated preferably at a temperature range of 1,250˜1,450° C., or of 1,150˜1,500° C. according to the properties of the coal.

Abstract: Disclose is a method for preparing a cathode material for a lithium secondary battery, the method comprising the steps of: preparing an amorphous silicon oxide; using the prepared silicon oxide as a starting material; and milling the amorphous silicon oxide, a lithium silicon oxide and a transition metal silicon oxide at a predetermined ratio, drying the milled material, and heat-treating the dried material in an atmosphere of inert gas, thereby preparing a lithium transition metal silicon oxide.

Abstract: The present invention relates to a high energy density beam welding system using molten metal droplet jetting. The present invention includes a beam emitting unit for emitting a high energy density beam onto a welded portion on a target object; and a molten metal droplet jetting unit for generating molten metal droplets to transfer or spray the molten metal droplets onto the welded portion on the target object, which follows a path of the beam emitting unit. Thus, it has advantages of widening a range of applications and enhancing the productivity and the quality in that a welding can be performed at a high junction efficiency even where a gap is wide, a loss in the high density energy beam is small, and heat distortions of the welded portion can be minimized.

Abstract: The present invention relates to a high energy density beam welding system using molten metal droplet jetting. The present invention includes a beam emitting unit for emitting a high energy density beam onto a welded portion on a target object; and a molten metal droplet jetting unit for generating molten metal droplets to transfer or spray the molten metal droplets onto the welded portion on the target object, which follows a path of the beam emitting unit. Thus, it has advantages of widening a range of applications and enhancing the productivity and the quality in that a welding can be performed at a high junction efficiency even where a gap is wide, a loss in the high density energy beam is small, and heat distortions of the welded portion can be minimized.

Abstract: A purification system of exhaust gases in an internal combustion engine purifies the exhaust gases by disposing a reaction furnace in an exhaust pipe of the internal combustion engine. The system includes a reactor including a honeycomb carrier having a plurality of carrier cells in the reaction furnace and plasma generating electrodes. On each of the plurality of carrier cells, a photocatalyst layer is coated. Further, the plasma generating electrodes, having a plurality of electrode cells, are mounted at an inner end and an outer end of the honeycomb carrier.

Abstract: A flat panel display apparatus having high aspect ratio spacers and a method for the apparatus are disclosed. The apparatus has an emitter panel having a lower substrate, cathode electrodes and gate electrodes; a display panel having an upper substrate, transparent anode electrodes and fluorescent materials; a plurality of spacers having supporting walls having high aspect ratio and supporting legs respectively protruded from the supporting walls; and a sealing member for vacuum sealing peripheral regions of the emitter panel and the display panel. Therefore, the spacers are easy to be separately fixed in the display panel due to the supporting legs and vacuumizing of a space between the emitter panel and the display panel can be easily accomplished because the supporting walls and the supporting legs respectively have different heights.

Abstract: A multiphase mixing apparatus using acoustic resonance. The apparatus can induce a pressure difference between fluids to be mixed so that a resonance and an acoustic energy are generated, thereby shattering the fluids and effectively mixing them. The shattered gas fluid penetrating into the liquid fluid goes along a swirl flow so that the gas fluid stays in the liquid fluid for a relatively long time. In addition, the acoustic energy perturbs the fluids, a mass transfer resistance decreases.

Abstract: A head/slider assembly is integrated with a track-following electrostatic micro actuator. A method for fabricating the head/slider assembly includes the steps of: forming a micro actuator structural layer on a slider substrate with a cavity formed therebetween; forming metal signal lines on the micro actuator structure layer; forming the read/write magnetic head on a central part of the micro actuator structure layer; etching to separate the micro actuator and the read/write magnetic head; and forming a protective cover on top of the micro actuator and the read/write magnetic head to form the head/slider assembly, to thereby make the assembly to allow it to be used in a HDD system of a very high track density having a track pitch of 1 .mu.m and a recording density of more than 10 Gb/in.sup.2.

Abstract: A resistance spot welding apparatus having a primary circuit, a secondary circuit and a transformer for controlling the quality of a resistance spot weld, wherein a voltage is applied to the primary circuit to thereby generating a welding current, includes a current sensor for sensing the weld current from the primary circuit, a power factor calculator, a dynamic resistance calculator, a nugget estimator and a weld current controller. In the welding apparatus, the power factor calculator calculates power factors based on the welding current. And, the nugget estimator estimates a nugget size and nugget penetration from an dynamic resistance curve by using a Hidden Markov Model method, wherein the dynamic resistance curve is obtained by the power factor calculator. The quality of the resistance spot weld is controlled by changing the welding current based on the nugget size and the nugget penetration.

Abstract: The present invention relates to an apparatus for manufacturing a diamond film having a large area which is used for a field emission display (FED) and a manufacturing method thereof.The apparatus for manufacturing a diamond film having a large area according to the present invention comprises a pulse laser generating system for generating a pulse laser beam, a laser beam scanner for scanning said pulse laser beam, and a vacuum chamber which includes a target and a substrate holder, wherein said laser beam having passed said laser beam scanner is irradiated on said target, and wherein a substrate on which a diamond film is to be formed by a plume produced from said target is set up to said substrate holder. The diamond film according to the present invention has a uniform electrical and mechanical properties and can be obtained in a short time period and with a uniform width and a large area.