Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: The present invention relates to an antenna apparatus.

Abstract: An anode for a secondary battery includes an anode current collector, and an anode active material layer including a first anode active material layer and a second anode active material layer sequentially stacked from a surface of the anode current collector. Each of the first anode active material layer and the second anode active material layer includes a carbon-based active material and a silicon-based active material as an anode active material, and a carbon nanotube as a conductive material. A content of the silicon-based active material in the second anode active material layer is greater than a content of the silicon-based active material in the first anode active material layer. A Raman R value of the carbon nanotube included in the second anode active material layer is smaller than a Raman R value of the carbon nanotube included in the first anode active material layer.

Abstract: The present disclosure relates to a method of refining waste plastic pyrolysis oil, the method including the steps of: S1) pyrolyzing waste plastics to produce pyrolysis oil; S2) separating monomers from a depolymerization product recovered by depolymerizing polyethylene terephthalate (PET) with alcohol and adding a remaining depolymerization residue to the pyrolysis oil; S3) mixing the depolymerization residue with the pyrolysis oil to produce refined pyrolysis oil; and S4) separating the refined pyrolysis oil and the depolymerization residue. The refined pyrolysis oil may have a reduced content of impurities, such as nitrogen. Also provided is a method of removing nitrogen in pyrolysis oil by mixing, with pyrolysis oil, a residue generated during a recycling process of polyethylene terephthalate (PET), which should be disposed of as waste, and exhibits an effect of significantly reducing a content of nitrogen in pyrolysis oil.

Abstract: Embodiments of the present invention provide a lithium secondary battery including anode active material layers which have a multi-layered structure and include carbon-based active materials having different contents from each other, thereby improving mechanical stability and battery performance.

Abstract: An optical device for realizing augmented reality comprises a lens comprising a first surface and side surfaces, a display device disposed on a first side surface among the side surfaces of the lens and displaying a first image in a first area and a second image in a second area, a first reflector disposed in the lens and reflecting the first image incident on the first side surface of the lens to the first surface, a second reflector disposed in the lens and reflecting the second image incident on the first side surface of the lens to the first surface, a first condenser disposed between the lens and the first area of the display device and focusing the first image on the first reflector, and a second condenser disposed between the lens and the second area of the display device and focusing the second image on the second reflector.

Abstract: A virtual power plant system using a heat conversion device includes a plurality of distributed energy resources connected to a virtual power plant; a virtual power plant output adjustment device connected to the virtual power plant and including a heat conversion device that receives power generated from the plurality of distributed energy resources and converts the power into thermal energy, a virtual power plant management device configured to conduct a bidding by predicting an expected power generation amount of the plurality of distributed energy resources, analyze output variation and error of the virtual power plant due to an output variation of the plurality of distributed energy resources, and stabilize an output variation of the virtual power plant by controlling a power consumption amount of the virtual power plant output adjustment device based on the analysis result.

Abstract: An aerosol generating device includes a medium rod and a filter rod aligned along a longitudinal direction of the aerosol generating device. The medium rod includes a medium portion that accommodates a medium and at least one airflow path formed through the medium portion in the longitudinal direction.

Abstract: An aerosol generating system includes a holder including: a heater configured to heat an aerosol generating article; a holder battery configured to supply electric power to the heater; and a holder processor configured to measure a remaining charge value of the holder battery; and a cradle detachably coupled to the holder and including: a cradle battery having a greater battery capacity than the holder battery; and a cradle processor configured to: identify whether the holder is coupled to the cradle, receive a remaining charge value of the holder battery from the holder processor based on the holder being coupled to the cradle, and control the cradle battery to supply electric power to the heater based on the received remaining charge value being greater than or equal to a preset reference value.

Abstract: A water management system for a hydrogen engine is capable of reducing a capacity of a water tank for storing cooling water injected into the hydrogen engine and is capable of not requiring separate replenishment of water for the water tank. The water management system includes: a water tank module, which stores water for cooling the hydrogen engine; a water pump provided at the water tank module and configured to supply the water stored in the water tank module to the hydrogen engine; and an exhaust line provided between the hydrogen engine and the water tank module and configured to supply an exhaust gas, which contains water vapor discharged from the hydrogen engine, to the water tank module.

Abstract: Embodiments of the present disclosure relate to a method and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce lightened refined hydrocarbons having a low content of impurities from waste plastic pyrolysis oil.

Abstract: Various embodiments of the present disclosure relate to methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The methods and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the methods and system for producing refined hydrocarbons according to embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce refined hydrocarbons having a low content of impurities and a low content of olefins, and solid coke, from waste plastic pyrolysis oil.

Abstract: A touch device includes a touch panel including touch electrodes, and a touch driver adjacent to the touch panel, configured to sense a touch of a user, configured to transmit uplink signals including position information of the touch electrodes to an active pen through at least some of the touch electrodes in a first touch period, and configured to receive a sensing signal including position information of the active pen, which is calculated using the uplink signals, from the active pen in a second touch period after the first touch period.

Abstract: An aerosol-generating article according to one aspect of the present disclosure may include a tobacco medium portion, a filter portion disposed to be spaced apart from the tobacco medium portion, and a tubular cooling portion disposed between the tobacco medium portion and the filter portion. A tobacco medium may be included in a wall constituting the cooling portion.

Abstract: The present disclosure relates to a container for retort food and, more specifically, to a container for retort food, which includes: a ridge portion having a closed curve shape to surround a tray part; and an exhaust hole surrounded by the ridge portion, so that the container enables a lid film to be automatically peeled off from the ridge portion by means of a steam pressure generated in a food during heating to exhaust steam and can be used for retort food which is stored at room temperature.

Abstract: According to one embodiment of the present disclosure, an antenna device comprising: a plate; a first dielectric plate coupled to one surface of the plate; a plurality of radiation elements arranged along a first direction on the first dielectric plate; and a plurality of first feed lines configured to supply power to the plurality of radiation elements and having an air-strip line structure, wherein the first dielectric plate includes a first groove penetrating upper and lower surfaces of the first dielectric plate and configured to allow the first feed line to float therein, and the first feed line is configured to float in the first groove.

Abstract: A portable display device includes a display panel displaying an image with pixels of a display area, a touch sensor disposed in a front surface direction of the display area and a non-display area of the display panel, a touch driving circuit driving touch electrodes of the touch sensor to detect a touch occurrence position of at least one point, a touch movement direction, and a movement distance and generating touch coordinate data according to a detection result, and a display driving circuit displaying an icon or a menu bar in the display area so that a user controls a screen control function and an operation control function of the display panel according to the touch occurrence position of the at least one point, the touch movement direction, and the movement distance.

Abstract: A method and associated system for producing refined hydrocarbons from waste plastics. The method and associated system provide for pretreating waste plastics; a producing a pyrolysis gas by introducing the waste plastics pretreated in the pretreatment process into a pyrolysis reactor; producing in a lightening process a pyrolysis oil by introducing the pyrolysis gas into a hot filter; dehydrating a first mixed solution, obtained by mixing the produced pyrolysis oil with washing water and a demulsifier, by applying a voltage to the first mixed solution; hydrotreating a second mixed solution obtained by mixing the dehydrated first mixed solution with a sulfur source to produce a refined pyrolysis oil from which impurities are removed; and coking the refined pyrolysis oil, wherein a liquid condensed in the hot filter is re-introduced into the pyrolysis reactor.