Abstract: Provided are a method for preparing a polyetherketoneketone and a polyetherketoneketone prepared thereby, wherein, at the time of a polymerization reaction, nitrogen gas is blown into a liquid reaction medium while stirring, thereby quickly removing hydrochloric acid, which is a by-product generated during the reaction, and preventing aggregation of resin particles, thus suppressing the generation of scales.

Abstract: Provided is a jetting driver that can be used for various types of heads with minimal changes. The jetting driver includes: an image board receiving raw image data and generating image data by transforming the raw image data into a form suitable for a type of heads used; and an interface board physically separated from the image board, receiving the image data, and transmitting the image data to the heads through a plurality of channels.

Abstract: Discussed is a display device for improving both transmittance and efficiency of light that is transmitted through a light-emitting unit and a transmissive unit due to a phase difference of ? at an interface between an organic layer and an optical compensation layer of the display device.

Abstract: A shoes care device includes an inner cabinet having an accommodation space configured to accommodate shoes; a outlet formed on a bottom of the inner cabinet so as to suck air inside the inner cabinet; a connection path forming a flow path through which air in the accommodation space is discharged from the inner cabinet through the outlet and then introduced back into the accommodation space; a blowing part disposed in the connection path and configured to ventilate air; a dehumidifying part disposed in the connection path and configured to dehumidify air; and a main shelf installed to cover the bottom of the inner cabinet and having an upper surface on which the shoes can be settled.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.

Abstract: Disclosed are various methods for transmitting or receiving data or control information having high reliability conditions. A method for operating a terminal which transmits uplink control information (UCI) includes: a step of generating UCI; a step of comparing the priority of an uplink (UL) control channel for the transmission of the UCI with the priority of a UL data channel when some symbols of the UL control channel and the UL data channel overlap; and a step of selecting the UL channel having a higher priority among the UL control channel and the UL data channel, and transmitting the UCI to a base station through the selected UL channel.

Abstract: A semiconductor manufacturing apparatus including a process chamber and a boat having a support member supporting substrates arranged in a first direction. An inner tube encloses the boat and includes a slit along a side wall. A nozzle supplies a process gas and includes a gas injection port at a position corresponding to the slit. The gas injection port includes a first inlet and first outlet. The slit includes a second inlet and second outlet. A distance to an end of the first inlet from a center line that connects a center of the first inlet and a center of the second outlet is different from the distance from the center line to an end of the first outlet and/or a distance from the center line to an end of the second inlet is different from a distance from the center line to an end of the second outlet.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present invention relates to a method of non-destructively measuring a thickness of a reinforcement membrane, and more particularly, to a method of non-destructively measuring a thickness of a hydrogen ion exchange reinforcement membrane for a fuel cell, in which the reinforcement membrane has a symmetric three-layer structure including a reinforcement base layer and pure water layers disposed at opposing sides of the reinforcement base layer, including performing total non-destructive inspection and omitting a process of analyzing a position by means of a thickness peak of a power spectrum of the respective layers of the reinforcement membrane.

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.

Abstract: A battery charging apparatus includes a bi-directional charger including a first switching circuit connected to an AC terminal, a second switching circuit connected to a battery, and a transformer connected between the first switching circuit and the second switching circuit. The battery charging apparatus also includes a controller configured to switch a leg included in the first switching circuit based on a first carrier wave and a first duty command, configured to switch a leg included in the second switching circuit based on a second carrier wave and a second duty command, configured to adjust a phase of the second carrier wave compared to a phase of the first carrier wave by a phase shift angle according to an active power command, and configured to adjust a phase of the second duty command according to the reactive power command.

Abstract: The present invention generally relates to an extracellular vesicle (EV) comprising a subunit of a heterodimeric transcription factor, an EV polypeptide, and a monomeric cis-cleaving intein and a method of using the EV.

Abstract: The present invention relates to a seat frame with reduced weight due to not including a cushion side frame, the seat frame comprising: a pair of rails; a cushion frame which supports a cushion and has a closed cross-sectional shape; front links which connect the rails to the cushion frame on the front side; rear links which connect the rails to the cushion frame on the rear side; and connection brackets which connect the rear links to a seatback frame.

Abstract: The present invention generally relates to a stem cell-derived extracellular vesicle (EV) comprising a signal regulatory protein (SIRP) and a method for preventing or treating cancer and/or inflammatory disease, condition, or symptom by using the stem cell-derived EV.

Abstract: The present disclosure in some embodiment provides a hybrid induction motor including dual stators. According to at least one embodiment, the present disclosure provides a hybrid induction motor including a hollow rotor including a single conductor bar which is annularly disposed and spaced apart from a rotation axis by a predetermined distance, an outer stator having an outer stator winding disposed in parallel with an outer circumferential surface of the hollow rotor, and an inner stator having an inner stator winding disposed in parallel with an inner circumferential surface of the hollow rotor.

Abstract: Proposed is a micropump. The micropump includes a head portion including a first and second movement guides and a first tip, and includes a body portion having at least a portion thereof accommodated in the head portion, the body portion including a core, a winding body, a first permanent magnet, a second permanent magnet, a first fixing guide, and a second fixing guide. The first movement guide and the first fixing guide are famed so as to correspond to each other, the second movement guide and the second fixing guide are formed so as to correspond to each other, a pole of the first permanent magnet faces or opposes a lower end contact surface of the core, and a facing direction of a pole of the second permanent magnet is same as a facing direction of the first permanent magnet.

Abstract: A super junction semiconductor device includes a substrate of a first conductive type, an epitaxial layer disposed on the substrate, a plurality of pillars extending in a vertical direction and each being alternately arranged within the epitaxial layer, gate structures disposed on the epitaxial layer in the active region, a reverse recovery layer of a second conductive type, the reverse recovery layer disposed on both the pillars and the epitaxial layer and in the transition region to distribute a reverse recovery current, and at least one high concentration region surrounding an upper portion of at least one of the pillars in the peripheral region, the high concentration region having a horizontal width greater than that of one of the pillars provided in the transition region. Thus, a breakdown voltage may be inhibited from decreasing in the peripheral region.

Abstract: An end coil cooling structure includes: a shielding member which is disposed within a motor housing, surrounds an area where an end coil is disposed, and forms an enclosed space; and a plurality of heat conducting particles disposed to fill the enclosed space and to come into contact with the end coil.

Abstract: Provided is a surveillance system employing a plurality of unmanned aerial vehicles (UAVs), the surveillance system showing improved surveillance performance while optimizing common energy consumption for computing of all the UAVs and also providing a stable visual monitoring service using autonomous mobility of the plurality of UAVs regardless of movement of an object to be monitored and action uncertainty of an adjacent UAV.

Abstract: An electrified vehicle includes an inverter to convert a DC voltage of an input terminal into an AC voltage based on a PWM control signal to output the AC voltage to an output terminal, an inverter controller to control a duty ratio of the PWM control signal in order to adjust a level of the AC voltage to a level of a target voltage, and a battery controller to determine whether an overcurrent is generated based on a maximum instantaneous current output from the output terminal of the inverter in a battery power output mode and terminate the battery power output mode when the overcurrent is generated, determine whether to re-enter the battery power output mode based on the number of overcurrent generations when the battery power output mode is terminated, and set the level of the target voltage in response to the number of overcurrent generations upon re-entering.