Abstract: A hydrogen storage system is disclosed and includes a storage unit including a plurality of unit storage containers, in which metal hydride materials are respectively provided in an interior thereof and which are connected to each other in parallel, and a thermal fluid line defining a thermal fluid passage, which passes via the plurality of unit storage containers continuously and through which a thermal fluid flows for heating or cooling the unit storage containers, thereby enhancing a storage performance and an efficiency of the hydrogen.

Abstract: The present invention relates to a method and system for providing language learning services. The method of providing language learning services, according to the present invention, the method may include: activating, in response to receiving an input for acquiring a learning target image through a user terminal, a camera of the user terminal; specifying at least a portion of an image taken by the camera as the learning target image; receiving language learning information for the learning target image from a server; providing the language learning information to the user terminal; and storing, based on a request for storing of the language learning information, the language learning information in association with the learning target image, such that the learning target image is used in conjunction with learning of the language learning information.

Abstract: The present disclosure relates to a secondary battery, and more particularly to an electrode of a battery. A device for intercepting pickup of multiple electrodes includes a variable jig movable between a first position and a second position, wherein the variable jig is configured to allow a first-type electrode including a first mark to be picked up at the first position and to allow a second-type electrode including a second mark to be picked up at the second position.

Abstract: A substrate processing method is provided. The substrate processing method comprises loading a substrate onto a substrate support inside a chamber, forming a plasma inside the chamber, providing a first DC pulse signal to an electromagnet that generates a magnetic field inside the chamber and processing the substrate with the plasma, wherein the first DC pulse signal is repeated at a first period including a first section and a second section subsequent to the first section, the first DC pulse signal has a first level during the first section, and the first DC pulse signal has a second level different from the first level during the second section.

Abstract: The present disclosure relates to a cervical spine supporting pillow and a method of manufacturing the same, and more particularly, to a cervical spine supporting pillow including: a first support layer formed to have a predetermined area so that a cervical spine and an occipital region of a user may be seated thereon; a second support layer formed with a plurality of air vents in a front surface and a rear surface thereof; and a third support layer formed to support the first support layer and the second support layer, wherein the third support layer, the second support layer, and the first support layer are sequentially stacked from bottom to top.

Abstract: Provided are a method for manufacturing a single-crystal semiconductor layer. The method of manufacturing the single crystalline semiconductor layer includes performing a unit cycle multiple times, wherein the unit cycle includes a metal precursor pressurized dosing operation in which a metal precursor is adsorbed on a surface of a single crystalline substrate by supplying the metal precursor onto the single crystalline substrate while an outlet of a chamber in which the single crystalline substrate is loaded is closed such that a reaction pressure in the chamber is increased; a metal precursor purge operation; a reactive gas supplying operation in which a reactive gas is supplied into the chamber to cause a reaction of the reactive gas with the metal precursor adsorbed on the single crystalline substrate after the metal precursor purge operation; and a reactive gas purge operation.

Abstract: A battery module improves safety by appropriately controlling venting when a thermal event occurs inside the battery module. The battery module includes a cell assembly having at least one battery cell; a module case configured to accommodate the cell assembly in an inner space thereof and having a venting hole formed therein to discharge a venting gas generated from the cell assembly; and a venting unit provided at an outer side of the module case and having a venting channel so that the venting gas discharged from the venting hole is introduced therein and discharged to the outside, the venting unit having a protrusion configured to protrude toward an outer surface of the module case from the inside of the venting channel.

Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.

Abstract: An apparatus for measuring a depth of a tread groove may include: a camera module capturing a video including an upper end portion of a tire while rotating around an upper end portion of the tire having a plurality of tread grooves, the video including a plurality of frames; a control module obtaining, based on the plurality of frames, a cross-sectional width of the tire in units of pixels by adding widths and depths of each of the plurality of tread grooves in units of pixels, a width of an inner block in units of pixels, and a width of an outer block in units of pixels, the inner and outer blocks are disposed on the tire; and a conversion module converting the depth of the tread groove in units of pixels into the depth in units of pixels.

Abstract: A positive electrode active material for a lithium secondary battery has a mixture of microparticles having a predetermined average particle size (D50) and macroparticles having a larger average particle size (D50) than the microparticles. The microparticles have the average particle size (D50) of 1 to 10 ?m and are at least one selected from the group consisting of particles having a carbon material coating layer on all or part of a surface of primary macroparticles having an average particle size (D50) of 1 ?m or more, particles having a carbon material coating layer on all or part of a surface of secondary particles formed by agglomeration of the primary macroparticles, and a mixture thereof. The macroparticles are secondary particles having an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary microparticles having a smaller average particle size (D50) than the primary macroparticles.

Abstract: A coil component includes a body having a first surface, and a first end surface and a second end surface connected to the first surface and opposing each other in a length direction; a support substrate disposed inside the body; a coil portion comprising a first coil pattern and first and second lead-out patterns, each disposed on a first surface of the support substrate; first and second slit portions, respectively defined on edge portions of the first surface of the body to expose the first and second lead-out patterns; and first and second external electrodes disposed on the first and second slit portions to be connected to the first and second lead-out patterns. At least one of the first and second lead-out patterns has a thickness greater than a thickness of each of the first coil pattern and the first dummy lead-out pattern.

Abstract: Provided are an electroluminescent device, a method of manufacturing the same, and a display device including the same, the electroluminescent device including a first electron auxiliary layer, a first light emitting layer, and a first electrode disposed on a first surface of a transparent electrode; and a second electron auxiliary layer, a second light emitting layer, and a second electrode disposed on a second surface of the transparent electrode, wherein the first electron auxiliary layer and the second electron auxiliary layer each include a plurality of zinc oxide nanoparticles, a ratio (t1/t0) of a thickness (t1) of the first electron auxiliary layer to a thickness (t0) of the transparent electrode and a ratio (t2/t0) of a thickness (t2) of the second electron auxiliary layer to the thickness (t0) of the transparent electrode are each in the range of about 0.1 to about 4.0.

Abstract: Described are anti-doppel antibody-drug conjugates, compositions comprising them, and related methods of treating doppel-associated diseases and conditions, including cancer.

Abstract: A positive electrode for a lithium secondary battery includes a positive electrode collector, a first positive electrode active material layer formed on the positive electrode collector and includes a first positive electrode active material, and a second positive electrode active material layer formed on the first positive electrode active material layer and includes a second positive electrode active material. The first positive electrode active material and the second positive electrode active material include a lithium nickel-cobalt-based oxide in which an amount of nickel among total metallic components excluding lithium is 80 atm % or more, the first positive electrode active material has a molar ratio of nickel to cobalt of 18 or more, and the second positive electrode active material has a molar ratio of nickel to cobalt of less than 18.

Abstract: Provided is a method for electrowinning neodymium compound. The method includes providing a fluoride-based electrolyte through an opening defined in an electrolytic bath including a cathode and an anode. The method includes providing granules, each including a neodymium compound and having at least one cavity defined therein, through the opening defined in the electrolytic bath. The method includes dissolving at least a portion of the granule in a molten salt of the fluoride-based electrolyte. The method also includes reducing neodymium at the cathode. The cavity is defined inside or on the surface of the granule, and the apparent density of the granules is lower than the density of the molten salt. The method proposed has an improved process compared to those of the related art.

Abstract: A motor drive device is proposed. The motor drive device is configured to drive a motor having a plurality of windings respectively corresponding to a plurality of phases, and includes: a first inverter including a plurality of first switching elements, and connected to a first end of each of the plurality of windings; a second inverter including a plurality of second switching elements, and connected to a second end of each of the plurality of windings; and a controller configured to generate phase voltage commands of the first inverter and phase voltage commands of the second inverter based on preset voltage commands of the motor so that the phase voltage commands of the first inverter and the phase voltage commands of the second inverter are respectively represented as vectors of different angles.

Abstract: The present invention relates to a biodegradable polyester resin, in which the first repeat unit comprising a first diol residue and an aromatic dicarboxylic acid residue and the second repeat unit comprising a second diol residue and an aliphatic dicarboxylic acid residue satisfy a ratio of the number of repeat units in a specific range, and the softness index of the resin satisfies a specific range, and to a process for preparing the same. Since the biodegradable polyester resin can provide a biodegradable polyester sheet or film that can be simultaneously enhanced in productivity, processability, and moldability and is excellent in tensile strength, tear strength, and friction coefficient and excellent in biodegradability and water degradability, it can be utilized in more diverse fields.

Abstract: Embodiments relate to a biodegradable and polymerizable polyester composition, to a biodegradable polyester resin prepared therefrom, and to a process for preparing the same. As the biodegradable and polymerizable polyester composition comprises an inorganic filler in a certain content and satisfies a certain range of viscosity, it has excellent dispersibility during polycondensation; thus, it is possible to control the content of metals in a biodegradable polyester resin prepared from the biodegradable polyester polymerization composition and the dispersion index within optimal ranges. In addition, as the biodegradable and polymerizable polyester composition comprising an inorganic filler is subjected to a polycondensation reaction, the dispersibility during the polycondensation reaction is very excellent, which can suppress the aggregation of inorganic filler particles and prevent filter clogging, resulting in a decrease in defects such as voids in the processing process.

Abstract: An electrode includes an electrode active material, wherein the electrode active material layer includes an electrode active material, polyvinylidene fluoride, and a conductive agent, wherein the conductive agent includes a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, and the carbon nanotube structure is included in an amount of 0.01 wt % to 0.5 wt % in the electrode active material layer. A secondary battery including the same, and a method of preparing the electrode are also provided.