Abstract: Disclosed is an apparatus for reducing floating radioactive material in a containment building capable of reducing radioactive material in the event of a major accident in a containment building such as a nuclear power plant. A radioactive material reduction unit configured to reduce radioactive material in the air is provided upstream of a flow induction unit configured to induce an air flow through catalytic reaction with hydrogen in the air in the event of a major accident. The flow induction unit may have a replaceable modular form. The radioactive material reduction unit may include an adsorber module configured to remove gaseous radioactive material, such as iodine or an iodine compound. The adsorber module may have a replaceable modular form. In addition, the radioactive material reduction unit may further include an aerosol filter fixed to an inlet to remove particulate radioactive material.

Abstract: The present invention relates to the field of coal mine concealed fire zone detection, in particular to a coal spontaneous combustion downhole detection system and method based on a self-potential method. The coal spontaneous combustion downhole detection system comprises a self-potential detection apparatus and a self-potential processing apparatus; the self-potential detection apparatus comprises measuring electrodes, a reference electrode and metal anchor rods; the measuring electrodes are arranged on a top plate of a goaf roadway, are fixed to the metal anchor rods, and are in wireless connection with the reference electrode through the metal anchor rods; the self-potential processing apparatus comprises a data processing sensor for processing potential data and an imaging sensor for converting data into images; and the measuring electrodes and the reference electrode are in wireless connection with the data processing sensor.

Abstract: A silicon carbon composite, a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack are provided. The silicon carbon composite satisfies a condition of 1.3?((B+C)/A)<4, wherein A is an intensity of a peak having a chemical shift value in the range of 20 ppm to ?15 ppm in a 29Si-MAS-NMR spectrum, B is an intensity of a peak having a chemical shift value in the range of ?20 ppm to ?100 ppm in the 29Si-MAS-NMR spectrum; and C is an intensity of a peak having a chemical shift value in the range of ?110 ppm to ?140 ppm in the 29Si-MAS-NMR spectrum.

Abstract: A lithography apparatus comprises a wafer stage, a cable configured to be bent as the wafer stage moves, a first support configured to prevent the cable from sagging, and to support the cable to maintain a bent state of the cable when the cable moves, a first rail installed on a first side of the cable, and including curved track extending in a direction from a lower portion of the cable toward an upper portion of the cable, wherein the first rail includes a concave first surface, a second rail installed on a second side of the cable opposite the first side of the cable, and including curved track extending in the direction from the lower portion of the cable toward the upper portion of the cable, wherein the second rail includes a concave second surface.

Abstract: A scroll compressor and a method for producing an eccentric bush necessary for the scroll compressor, and since the scroll compressor includes: a shaft rotated by a drive source; an eccentric bush having a recess, into which the shaft is inserted, and an eccentric portion eccentric to the shaft; an orbiting scroll performing an orbiting motion in cooperation with the eccentric portion; and a fixed scroll engaged with the orbiting scroll, and the eccentric bush is formed according to a method for producing the eccentric bush for the scroll compressor including steps of sintering, sizing, and forming a coating layer such that the eccentric bush includes pore apertures and a coating layer, accordingly, the manufacturing cost and weight may be reduced, and the durability may be improved.

Abstract: A method is configured to generate a pre-derived ultra wide band (UWB) ranging secure key (URSK) according to the ranging result of a digital key, and a digital key authentication controller for a vehicle is configured to authenticate the URSK. The method for generating the pre-derived URSK includes steps of: determining a location of the digital key in relation to the vehicle according to a UWB ranging; determining a time of generating the pre-derived URSK according to the locations of the digital key; and generating the pre-derived URSK according to the time. The method may determine generation of the pre-derived URSK that is not interfered with the authentication of an active URSK according to the ranging result of the digital key, and may control the time of generating each pre-derived URSK according to first to third locations.

Abstract: Provided are a compound of Formula 1 that can improve the luminous efficiency, stability, and lifespan of an organic electronic element employing the compound, and the organic electronic element, and an electronic device thereof.

Abstract: The present invention relates to a catalyst for converting diesel and kerosene, which are increasingly likely to be not utilized, into basic chemical raw materials, and a method for producing the catalyst, and the catalyst is a catalyst containing a porous zeolite having pores; and phosphorus (P) supported in internal pores of the zeolite and on a surface of the zeolite, wherein the amount of Lewis acid sites in the phosphorus-supported zeolite is 20 to 100 ?mol/g, and the catalyst is used for producing a basic chemical raw material through catalytic cracking of a hydrocarbon feed having a boiling point of 150° C. or higher and 550° C. or lower.

Abstract: A display device includes a main display area, and a first sub-display area and a second sub-display area around the main display area and located adjacent to each other, a plurality of pixel electrodes in the main display area and spaced from each other, a plurality of first sub-pixel electrodes in the first sub-display area and spaced from each other, a plurality of first copy pixel electrodes in the first sub-display area and connected to the first sub-pixel electrodes via a first bridge electrode, a first pixel defining layer in the main display area and the first sub-display area, and having a plurality of openings therein that overlaps the plurality of pixel electrodes, the plurality of first sub-pixel electrodes, and the plurality of first copy pixel electrodes, a plurality of second sub-pixel electrodes and second copy pixel electrodes in the second sub-display area and spaced from each other.

Abstract: A semiconductor device includes a substrate including a circuit region and a cell region. The cell region includes a gate stacking structure, a channel structure that extends into the gate stacking structure and is on the cell array region, a through-gate contact portion that extends into the gate stacking structure and is electrically connected to a connection gate electrode, and an upper gate contact portion that is electrically connected to an upper gate electrode, where the upper gate electrode is separated from the substrate by a first distance, the connection gate electrode is separated from the substrate by a second distance, and where the second distance is less than the first distance, and where the upper gate contact portion includes a first portion and a second portion, and a boundary between the first portion and the second portion has a step shape.

Abstract: The present disclosure relates to a method and an apparatus of generating a surround view monitoring (SVM) image. The method includes: obtaining installation information of an actual camera installed on a ship; setting a virtual camera to orient toward a ground plane perpendicularly within a world coordinate system; calculating a conversion relationship between the virtual camera and the actual camera, based on the installation information of the actual camera; generating the SVM image based on the calculated conversion relationship; and controlling the ship based on the generated SVM image.

Abstract: A light-emitting device includes: a semiconductor stack, including a first semiconductor layer, a second semiconductor layer and an active area between the first semiconductor layer and the second semiconductor layer, wherein the first semiconductor layer includes an upper surface; a plurality of exposed regions, formed in the semiconductor stack and exposing the upper surface; a lower protective layer, covering the exposed regions and the second semiconductor layer; a first reflective structure, formed on the second semiconductor layer and including a plurality of first openings on the second semiconductor layer; a second reflective structure, formed on the first reflective structure and electrically connected to the second semiconductor layer through the plurality of first openings; and an upper protective layer, formed on the second reflective structure; wherein the upper protective layer contacts and overlaps the lower protective layer on the exposed regions; wherein the first reflective structure and the

Abstract: Disclosed are a pulse wave reproduction device and a method of operating the same according to the present invention, the pulse wave reproduction device including an aorta part provided in the form of a tube elongated to correspond to a shape of a human aorta and configured such that a circulation fluid flows in the aorta part, a heart part connected to the aorta part and configured to share the circulation fluid with aorta part and generate a forward wave according to a pulse flow by applying a pressure in a preset cycle, a vein part configured to share the circulation fluid with aorta part and adjust a pressure in the aorta part by applying a pressure to the circulation fluid, and a pressure environment creation part having a space therein to accommodate the aorta part and configured to adjust an external pressure by pressing the aorta part.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the optical imaging system satisfies 1<|f123457?f|/f, where f123457 is a composite focal length of the first to seventh lenses calculated with an index of refraction of the sixth lens set to 1.0, f is an overall focal length of the optical imaging system, and f123457 and f are expressed in a same unit of measurement.

Abstract: A circuit and a device for driving a motor. The circuit comprises a converting circuit and a driving circuit. An input terminal of the converting circuit is connected to a power supply. The converting circuit is configured to obtain a PMW waveform of which a complete cycle comprises a first half-cycle and a second half-cycle. The converting circuit comprises: a waveform generating circuit, comprising a first operational amplifier configured to provide a reference voltage and obtain the first half-cycle based on the reference voltage; and a waveform flipping circuit, comprising a second operational amplifier configured to flip the reference voltage to obtain the second half-cycle. An output terminal of the converting circuit is configured to transmit the PWM waveform to the input terminal of the driving circuit. The driving circuit is configured to control operation of the motor based on the PWM waveform.

Abstract: A compound represented by chemical formula 1, a salt, a stereoisomer, a solvent or a hydrate thereof, an antibacterial composition including the compound, and uses thereof are disclosed. The antibacterial composition is suitable for inhibiting bacterial infections, preventing, alleviating or treating bacterial infectious disease, and for preventing, alleviating or treating inflammation caused by a bacterial infection. The compound specifically binds to p62 protein so as to activate p62, thereby increasing the activity of autophagy, which is inhibited by a bacterial infection, and thus has antibacterial activity against various bacteria, can inhibit bacterial infectivity and has the excellent effect of enabling prevention, alleviation or treatment of bacterial infectious disease and inflammation caused by an infection.

Abstract: A battery management system having at least one optical pathway including a plurality of optical communication devices connected to one of a plurality of batteries. Each optical communication device emits optical signals, the optical signals include data about the batteries. Each of the optical communication devices includes an optical emitter operable for emitting the optical signals, an optical sensor operable for receiving the optical signals, a controlling circuit for processing the optical signals, and a printed circuit board (PCB). The optical emitter, the optical sensor, and the controlling circuit are mounted to the PCB. The optical pathway includes a layer of transparent film, and a layer of reflective film is connected to the layer of transparent film. The optical signals which pass through the layer of transparent film and reflect off of the layer of reflective film are received by the optical sensor of one of the optical communication devices.

Abstract: Provided are a multi-layer fermentation tank for tea leaves and a use method thereof. The multi-layer fermentation tank for tea leaves includes a tank body, a placement assembly, a heater, and an oxygen supply machine. The placement assembly includes a support frame, and a tray. The support frame includes a turnover plate, laminate groups located at upper and lower sides of the turnover plate, and a top cover located above the laminate group at the upper side. A telescopic connection mechanism is arranged among the turnover plate, the laminate and the top cover, an upper surface of each of the turnover plate and the laminate is provided with a placement groove, the tray is placed in the placement groove, and a positioning member is arranged between the tray and the placement groove. Gas holes are formed in each of the turnover plate, the laminate, the tray, and the top cover.

Abstract: A batch-type complex temperature treatment machine using a high-temperature plasma, and a method for treating exhaust gas thereof. The batch-type complex temperature treatment machine using a high-temperature plasma includes: a reaction part accommodating therein organic matter for carbonization; a rotation part agitating the inside of the reaction part; and a torch part generating plasma so as to carbonize the organic matter inside the reaction part. The torch part is coupled to the reaction part and is coupled to an opposite side to the position where the organic matter is accumulated and agitated inside the reaction part.

Abstract: Provided is a method of filling a gap with a flowable oxide film. In one embodiment of the disclosure, the method comprises forming a flowable silicon nitride film, followed by converting the silicon nitride film in a silicon oxide film. The silicon nitride film may be formed by supplying an oligomeric silicon source and a nitrogen source activated by a power. The silicon nitride film may be converted into the silicon oxide film by supplying an oxygen source while applying a Vacuum UV radiation. The Vacuum UV radiation may be applied in a pulsed mode.