Abstract: Proposed is a connection tube support of a waste heat recovery boiler supporting a connection tube unit having a plurality of connection tubes that is disposed inside a waste heat recovery boiler and perform heat exchange between a fluid flowing inside and exhaust gas flowing outside, wherein the connection tube support includes a header storing fluid flowing through the connection tube unit and supporting one end of the connection tube unit by being connected to one end of the connection tube unit, and a tube sheet supporting a circumferential surface of each of the plurality of connection tubes, wherein the tube sheet has the plurality of connection tubes having been passed therethrough and is provided with a plurality of support holes respectively supporting circumferential surfaces of the plurality of connection tubes having been passed therethrough.

Abstract: There is provided a semiconductor memory device capable of improving performance and reliability of an element. The semiconductor memory device includes a substrate including a cell region and a peripheral region, a cell region isolation layer in the substrate, isolating the cell region from the peripheral region, an isolation active region surrounded by the cell region isolation layer, a bit line structure on the cell region, including a cell conductive line and a cell gate electrode in the substrate of the cell region, crossing the cell conductive line.

Abstract: A semiconductor memory device having improved electrical characteristics is provided. The semiconductor memory device comprises a first semiconductor pattern separated from a substrate in a first direction, a first gate structure extending in the first direction and penetrating the first semiconductor pattern, a first conductive connecting line connected to the first semiconductor pattern and extending in a second direction different from the first direction, and a second conductive connecting line connected to the first semiconductor pattern. The first gate structure is between the first conductive connecting line and the second conductive connecting line, the first gate structure includes a first gate electrode and a first gate insulating film, and the first gate insulating film includes a first charge holding film contacting with the first semiconductor pattern.

Abstract: Disclosed is a semiconductor package including a semiconductor chip having a first surface adjacent to an active layer and a second surface opposite to the first surface; a conductive stud disposed on the first surface of the semiconductor chip and connected to the active layer; an adhesive layer disposed on the second surface of the semiconductor chip; a conductive post disposed outside the semiconductor chip; a first redistribution structure, which is on the first surface of the semiconductor chip and includes a first redistribution insulation layer supporting the conductive stud and the conductive post; a second redistribution structure, which is on the second surface of the semiconductor chip and includes a second redistribution insulation layer disposed on the adhesive layer; and a first molding layer disposed on the first redistribution structure and surrounding the semiconductor chip, the adhesive layer, the conductive stud, and the conductive post.

Abstract: A spatial image projection device includes a housing, a display unit that is accommodated in the housing and configured to output a hologram image, a half-mirror configured to project a spatial image corresponding to the hologram image inside the housing, and a first polarizing film that is disposed outside the housing and configured to block a part of light directed toward a viewer from the housing.

Abstract: Disclosed are a brake disk and a method for manufacturing the same. In particular, the brake disk may include a friction surface formed of cast iron, and the friction surface of the brake disk is divided into a plurality of sections in a circumferential direction. Preferably, an average of the numbers per unit area of eutectic cells formed on surfaces of the sections may not be greater than 300 ea/cm2.

Abstract: The present embodiment relates to a lens driving device comprising: a housing; a bobbin disposed inside the housing; a magnet disposed in the housing; a first coil which is disposed in the bobbin, and is opposite to the magnet; a base disposed on the lower side of the housing; a substrate portion comprising a body portion, which is disposed on the upper surface of the base, and a terminal portion extending toward the lower side of the body portion; a terminal portion accommodating portion which is formed on a side surface of the base and accommodates at least a part of the terminal portion; and an adhesive accommodating groove which is formed in the terminal portion accommodating portion and accommodates at least a part of an adhesive contacting the terminal portion and the terminal portion accommodating portion.

Abstract: A filter module mounted on an air purifier to filter air includes a first filter unit and a second filter unit detachably connected to the first filter unit and arranged to surround the first filter unit. The first filter unit includes a shape-corresponding portion having at least a portion which is formed in a curved shape having a predetermined curvature. At least a portion of the edge of the second filter unit is formed in a shape corresponding to the shape-corresponding portion, and when the filter module is mounted on the air purifier, the amount of air passing through the first filter unit per unit area is greater than the amount of air passing through the second filter unit per unit area.

Abstract: The present disclosure relates to the structure of a micro light-emitting device and an alignment substrate. The light-emitting device according to one embodiment includes an inclined side surface having a three-dimensional shape. The inclined side surface is formed to protrude from one surface of the micro light-emitting device, has magnetism, and includes two different electrodes formed in one direction. In this case, among the two electrodes, one electrode may be formed on a mesa portion, and the other electrode may be formed on the inclined side surface.

Abstract: A vehicle air vent apparatus according to one embodiment of the present invention is an apparatus which guides air introduced from a vehicle air conditioner into a vehicle using a direct wind mode or indirect wind mode. The vehicle air vent apparatus includes a duct part including an entrance and an exit of an air passage communicating with the vehicle air conditioner, a cover part configured to selectively close the exit of the duct part, a vent part configured to adjust a wind direction of air introduced into the vehicle through the exit of the duct part and including a rack disposed under a body of the vent part and extending in a longitudinal front-rear direction of the vehicle, and a driving part configured to change a position of the cover part and a position of the vent part according to a preset logic.

Abstract: A memory device and operating method of the memory device are provided. The memory device comprises a memory cell storing data based on a first voltage, a row decoder selecting a wordline of the memory cell based on the first voltage, and a wordline predecoder configured to generate a “predec” signal, which is for generating a wordline voltage to be provided to the row decoder. The wordline predecoder is driven by the first voltage and a second voltage, which is different from the first voltage, receives a row address signal, associated with selecting the wordline, and an internal clock signal associated with adjusting operating timings of elements included in the memory device. The wordline predecoder performs a NAND operation on the row address signal and the internal clock signal, and provides the “predec” signal generated based on a result of the NAND operation to the row decoder.

Abstract: Embodiments provide a lens moving apparatus including a bobbin having a lens barrel, a housing configured to accommodate the bobbin, an upper elastic member coupled to the bobbin and the housing, a lower elastic member coupled to the bobbin and the housing, a first coil disposed on the bobbin, a first magnet disposed on the housing, a circuit board disposed below the housing, a second coil disposed on the circuit board, a first sensor to output a first output signal based on a sensed result of a magnetic field strength of the first magnet, a first capacitor connected in parallel to the first sensor.

Abstract: Disclosed herein is a once-through heat exchanger that includes a tube stack including a plurality of tubes, a plurality of heads connected to the tubes and configured to accommodate heated steam, and a manifold connected to the heads via a first link pipe and a second link pipe and configured to accommodate heated steam. The heads are spaced in a direction crossing a longitudinal direction thereof, and the first link pipe and the second link pipe include a first inclined link part or a second inclined link part, respectively, extending at an angle to each other.

Abstract: The present invention is a method for producing carbon fiber, characterized by using a carbon-fiber precursor produced from a polymer having a narrow molecular weight distribution and by applying only a small amount of a smoothing agent, composed of a specific component, to the carbon fiber surface immediately before winding of carbon fiber. According to the present invention, it is possible to stably produce carbon fiber, which has excellent dispersibility and do not deteriorate in quality and quality even when a sizing agent is not attached to the carbon fiber surface. In addition, the produced carbon fiber is suitable for use in a composite material which is produced by high-temperature processing using a thermoplastic resin.

Abstract: A method for predicting a structure of an indoor space using radio propagation channel analysis through deep-learning is disclosed. Channel data of radio signals are collected for various indoor spaces, and radio channel parameter data such as PDP, AoA, and AoD are extracted therefrom. A large amount of propagation channel parameter data is input to an artificial neural network together with vertex coordinate data of the corresponding indoor space and deep-learning is performed in advance. The propagation channel parameter data are extracted from the indoor space to be predicted, the best matching indoor space is detected based on the trained artificial neural network. The best matching indoor space is predicted as the structure of the indoor space.

Abstract: Proposed are a 3G sensor mask and a continuous positive airway pressure system using same, the mask sensing the sleep position of a patient during sleep to immediately correct pressure through a blower according to a changed sleep position if the sleep position has changed, and the system comprising: a 3G sensor mask worn on the face of a patient to sense the sleep position of the patient during sleep; and a positive airway pressure machine, which is connected to the 3G sensor mask in a wired/wireless manner to receive sleep position information about the patient sensed through the 3G sensor mask, detects the respiratory obstruction pressure necessary for an airway opening in response to a received sleep position change of the patient, and immediately corrects treatment pressure on the basis of the detected respiratory obstruction pressure for each sleep position.

Abstract: It is disclosed a blood glucose prediction system and method. According to one example embodiment, the blood glucose prediction system may include a learning modeling unit for learning a blood glucose variability inference model to infer a correlation between a physical indicator and blood glucose variability, and learning a blood glucose inference model to infer a correlation between sugar of saliva and blood glucose; a target information acquiring unit for acquiring a physical indicator and sugar of saliva of a target; a blood glucose variability estimating unit for estimating blood glucose variability of the target by using the blood glucose variability inference model with the physical indicator of the target as an input parameter; and a blood glucose predicting unit for predicting blood glucose of the target by using the blood glucose inference model with the sugar of the saliva and the estimated blood glucose variability of the target as an input parameter.

Abstract: The present disclosure relates to an air flap apparatus for a vehicle, which is improved to prevent an air flap from being rotated by a traveling wind generated when the vehicle travels at a high speed. The air flap apparatus for a vehicle includes a frame disposed behind a grill of a vehicle, an air flap that opens or closes an air inlet formed in the frame, a power transmission unit that is connected to the air flap and rotates the air flap, and a driving unit that is disposed outside the frame and generates power, wherein the power transmission unit includes a link that is connected to the air flap and rotates the air flap, and a loader that is connected to the driving unit, is rotated by the power generate by the driving unit, and stops movement of the link when the air flap closes the air inlet.

Abstract: A pressure-sensitive adhesive, which is applied to a flexible device, thereby effectively responding to repeated deformation and recovery, causing no defects (for example, observation of deformation traces and the like) before and after deformation, having excellent cuttability and workability, and causing no lifting, delamination, and/or bubble generation, and a use thereof are provided.

Abstract: The test circuit monitoring positive bias temperature instability (PBTI) includes a PBTI monitoring unit driven according to a power voltage, the PBTI monitoring unit outputting an output voltage having a potential that is equal to or lower than a potential of the power voltage according to a PBTI degradation rate of an NMOS transistor; and a degradation determiner for determining the PBTI degradation rate by comparing the potential of the output voltage to the potential of the power voltage.