Abstract: The present disclosure relates to a dry electrode for a lithium secondary battery with controlled surface roughness and a pouch-type lithium secondary battery including the same.

Abstract: A free chargeable voucher-based content providing system for providing a plurality of pieces of content on the basis of a free chargeable voucher, comprising: a voucher management unit which manages a free chargeable voucher that allows content to be used for free, sets a plurality of pieces of target content, which are subject to the free chargeable voucher, among the plurality of pieces of content, and automatically charges a certain number of free chargeable vouchers to a user terminal at certain time intervals; a content providing unit which, when a request is received from the user terminal to provide target content on the basis of the free chargeable voucher, provides the target content to the user terminal; and a storage unit which stores content information regarding the plurality of pieces of content, setting information, and voucher information regarding charging and use of the free chargeable voucher.

Abstract: A pouch film according to an embodiment of the present invention includes a first polymer layer, an adhesive layer disposed on one surface of the first polymer layer, a gas barrier layer disposed on the adhesive layer and comprising a sintered body of metal particles, and a second polymer layer laminated on one surface of the gas barrier layer.

Abstract: A safety detecting device includes a detector that detects an external object located in a detection area, and a controller that determines the detection area based on whether a communication with a robot that is moved in a specific movement area is made. The controller is configured to determine the detection area as a preset initial detection area in a non-communication state, in which no communication with the robot is made, and further determine the detection area based on any one of posture information of the robot, operation information of the robot, or a combination thereof, in a communication state, in which a communication with the robot is made.

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: A method of manufacturing a pouch-type secondary battery comprising the steps of: (a) preparing an electrode assembly having a separator interposed between a positive electrode and a negative electrode; (b) forming a receiving part for the electrode assembly in a case made of a laminate sheet; and (c) manufacturing a battery cell by receiving the electrode assembly in the receiving part and thermally fusing the case, wherein the laminate sheet comprises an outer resin layer, a metal barrier layer and an inner resin layer, the inner resin layer comprising polypropylene or polyethylene, and a crosslinking agent.

Abstract: Disclosed herein are a method for countering an asynchronous attack on a supply chain security protocol and an apparatus for the same. The method includes, in a supply chain security protocol performed by a terminal device into which a dielet is inserted and an authentication server, performing a self-generation mode in which a counter value within the dielet is registered in the authentication server, performing a read-out mode in which whether an asynchronous attack occurs is detected by comparing the counter values respectively stored in the dielet and the authentication server when a message for communication is sent, and replacing a message for the communication with a random value when an asynchronous attack is detected.

Abstract: A grounding resistance and ground rod corrosion reducer that is capable of making use of montmorillonite, smectite, and vermiculite to apply antacid effect to acidified grounding environments, thereby decreasing a corrosion rate of a ground rod and providing an excellent grounding resistance reduction rate. The grounding resistance and ground rod corrosion reducer contains 50 to 75% by weight of a grounding resistance soil mixture made up of the montmorillonite, the smectite, and the vermiculite, 20 to 40% by weight of magnesium hydroxide, and 5 to 15% by weight of graphite, based on the total weight thereof.

Abstract: A battery case for a secondary battery according to an embodiment of the present invention can include a cup part having an accommodation space configured to accommodate an electrode assembly in which electrodes and separators are stacked; a sealing part extending to the outside of the cup part; a gas discharge part attached to a hole which is formed to be punched in at least one of the cup part or the sealing part from the outside and through which a gas passes; and a coating part applied to an inner circumferential surface of the hole and having electrolyte resistance, wherein the gas discharge part includes: a gas discharge layer through which the gas passes; and an outer functional layer formed on an outer surface of the gas discharge layer and having a hydrophobic property.

Abstract: The present disclosure relates to a thin film forming method, and more particularly, to a thin film forming method for forming a gallium nitride thin film. In accordance with an exemplary embodiment, a thin film forming method includes: loading a substrate into a process space of a chamber; and forming a gallium nitride thin film on the substrate, and the forming of the gallium nitride thin film includes: supplying a source gas containing gallium onto the substrate; supplying a reactant gas containing nitrogen onto the substrate; and activating and supplying a post-treatment gas containing hydrogen onto the substrate.

Abstract: The present disclosure provides a large-area blank wherein no crystal-phase peak exists in the range of 2? 10-70, and the degree of crystallinity of 0.00% in an X-ray diffraction analysis pattern using CuK? rays, but crystalline particles having an average particle size of 10-70 nm are confirmed to be distributed in an amorphous SiO2—Li2O—Al2O3-series glass matrix from an SEM-based analysis, and the blank has a long-axis length of at least 60 mm and a thickness of at least 6 mm. The present disclosure has the following advantages: the blank is a workpiece having a large area and excellent processability such that processability can be improved during cutting, thereby reducing tool resistance and wear ratio, and increasing the tool lifespan; edge chipping can be reduced during processing; when fabricating multiple dental restorations successively by using a single blank, the blank use efficiency can be improved, and dental restoration productivity can be improved.

Abstract: An aerosol generating device includes a heater configured to heat an aerosol generating article, a gas sensor configured to sense a concentration of a particular gas, and a controller configured to control a supply of power to the heater, wherein the controller is configured to determine any one temperature profile from among a plurality of temperature profiles on the basis of a sensing value of the gas sensor.

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 invention relates to a pouch type secondary battery with improved insulation performance, a secondary battery module including the same, and a pouch therefor. The pouch type secondary battery has a pouch that includes: an accommodation part in which the electrode assembly is accommodated and an edge part disposed along an outer circumference of the accommodation part to define an edge. The edge part includes an insulating layer having an insulating material, and, in the insulating layer, a first insulating layer and a second insulating layer are stacked in sequence from an inside toward an outside of the pouch.

Abstract: An aerosol generating device includes: a coil configured to generate a magnetic field by a current flowing through the coil; a heater configured to be induction heated via the magnetic field; and a controller configured to control the current. The controller is further configured to change a frequency of the current flowing through the coil within a pre-set driving frequency range; and determine whether a magnitude of the current flowing through the coil exceeds a threshold value according to one or more changed frequencies of the current.

Abstract: Disclosed are a composition for an organic optoelectronic device including at least one kind of a first host compound represented by the Chemical Formula 1 and at least one kind of a second host compound represented by the Chemical Formula 2, and an organic optoelectronic device and a display device including the composition.

Abstract: A battery cooling system includes: a heating element for performing a resistance function of a battery to be subjected to a cooling test; a heating-load controller for controlling a heating load of the heating element according to a thermal model; an environment controller for controlling at least one battery cooling environment parameter such as outdoor temperature and initial temperature; a power supply for applying a current for each evaluation condition by connecting a charger/discharger to the heating element; a cooling processing part for supplying a cooling fluid such as air, coolant, or a refrigerant at a constant temperature and flow rate; and a cooling performance determination part for measuring a temperature of a battery cell over time and determining whether a target performance of the battery is satisfied.

Abstract: The present invention relates to a method for biologically producing, from seaweeds, 3,6-anhydro-L-galactitol (L-AHGol) which is a novel sugar alcohol, and agarobititol (ABol) which is in a disaccharide form having 3,6-anhydro-L-galactitol (L-AHGol) as a reducing end, by using a genetic engineering technique in GRAS strains.