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 sterilizing apparatus is disclosed. A sterilizing apparatus according to one embodiment comprises: a cover main body unit having an accommodation space formed therein so as to accommodate a device to be sterilized, wherein the accommodation space is open toward a bottom surface on which the device to be sterilized is disposed; an ultraviolet light emitting diode provided on a surface facing the bottom surface of the cover main body unit, and turned on so as to emit ultraviolet rays toward the accommodation space; a power supply unit for supplying power to the ultraviolet light emitting diode so as to turn on the ultraviolet light emitting diode; and a control unit for controlling an operation of the power supply unit.

Abstract: The present disclosure discloses a positive electrode active material for a lithium secondary battery comprising a secondary particle having an average particle size (D50) of 1 to 15 ?m, formed by agglomeration of at least two primary macro particles having an average particle size (D50) of 0.1 to 3 ?m; and a coating layer of a lithium-metal oxide on a surface of the secondary particle, wherein the primary macro particles are represented by LiaNi1-x-yCoxM1yM2wO2 (1.0?a?1.5, 0?x?0.2, 0?y?0.2, 0?w?0.1, 0?x+y?0.2, M1 includes at least one metal of Mn or Al, and M2 includes at least one metal selected from the group consisting of Ba, Ca, Zr, Ti, Mg, Ta, Nb and Mo), and wherein the lithium-metal oxide is a low-temperature phase LixCoO2(0<x?1) having at least one of a spinel structure (Fd-3m) or a disordered rock-salt structure (Fm-3m).

Abstract: The present invention provides an electrode for electrolysis in which a planarized metal substrate having a mesh structure such that the aspect ratio of an individual cross-section of a wire constituting the mesh structure is 120% or greater is used to increase the surface area of a coating layer, thereby increasing adhesion to a membrane and gas trap is reduced to reduce overvoltage.

Abstract: Provided is an active layer composition of a reduction electrode for brine electrolysis containing a metal precursor mixture containing a ruthenium precursor, a platinum precursor, and a lanthanide metal precursor, and an organic solvent containing an alcohol-based compound and an amine-based compound. Also provided is a reduction electrode containing a metal substrate and an active layer that is a dried and heat treated active layer composition positioned on the metal substrate.

Abstract: Provided is a reduction electrode for electrolysis and a manufacturing method thereof, the reduction electrode including a metal substrate and an active layer positioned on at least one surface of the metal substrate, wherein the active layer includes ruthenium oxide, a platinum oxide, and a cerium oxide. When the active layer is uniformly divided into a plurality of pixels, the standard deviation of the composition of ruthenium between the plurality of pixels formed by uniformly dividing the active layer is 0.4 or less, and N atoms in the active layer are present in an amount of 20-60 mol % based on ruthenium.

Abstract: Disclosed is a method of controlling backup data by using a snapshot type image table, the method including: assigning a snapshot table area; storing as first snapshot information a data size, a position address, and a time of data of the hard disk in the snapshot table area; storing as second snapshot information a data size designated from a data size of the first snapshot information, a position address, and a time of the added or removed data; respectively displaying and recording unique names, and data sizes and storage times, and displaying in a searchable list; and removing a connection to removed data, and maintaining a connection to added data. Accordingly, the method recovers and protects unexpected damaged data by assigning a snapshot table area with a minimum, and structurizing and recording in advance an address and a property of stored data.

Abstract: Disclosed is a method of controlling backup data by using a snapshot type image table, the method including: assigning a snapshot table area; storing as first snapshot information a data size, a position address, and a time of data of the hard disk in the snapshot table area; storing as second snapshot information a data size designated from a data size of the first snapshot information, a position address, and a time of the added or removed data; respectively displaying and recording unique names, and data sizes and storage times, and displaying in a searchable list; and removing a connection to removed data, and maintaining a connection to added data. Accordingly, the method recovers and protects unexpected damaged data by assigning a snapshot table area with a minimum, and structurizing and recording in advance an address and a property of stored data.

Abstract: Disclosed is a liquid crystal display device that includes first and second substrates; a liquid crystal layer between the first and second substrates; first and second bumps on the first substrate; and at least one first protrusion facing the first bump, and at least one second protrusion facing the second bump, the first and second protrusions being on the second substrate, wherein the first protrusion faces one side of the first bump, and the second protrusion faces the other side of the second bump.

Abstract: Disclosed is a liquid crystal display device that includes first and second substrates; a liquid crystal layer between the first and second substrates; first and second bumps on the first substrate; and at least one first protrusion facing the first bump, and at least one second protrusion facing the second bump, the first and second protrusions being on the second substrate, wherein the first protrusion faces one side of the first bump, and the second protrusion faces the other side of the second bump.

Abstract: It provides a method for preparing metal nanoparticles using a metal seed and metal nanoparticles including the metal seed, the method including: preparing a solution by adding a polymer surfactant in an alcohol solvent; heating the solution; forming a metal seed by adding a first metal salt of at least one metal salt selected from the group consisting of platinum, palladium and iridium in the heated solution; and adding a second metal salt into the solution including the metal seed. This method allows the production of uniform-sized nanoparticles under high concentration conditions in high yield and mass production in which the metal nanoparticles have high dispersion stability so that they are suitable for various application.

Abstract: A liquid crystal display (LCD) device having an alignment film of which pretilt angle and azimuthal angle can be adjusted without ultraviolet irradiation and a method for fabricating the LCD device are provided. A liquid crystal display having a thin film transistor substrate and a color filter substrate facing each other and a liquid crystal layer sealed between the substrates includes a first alignment film having a pattern which defines a first and second alignment domains on the thin film transistor substrate and a second alignment film formed on the color filter substrate.

Abstract: It provides a method for preparing metal nanoparticles using a metal seed and metal nanoparticles including the metal seed, the method including: preparing a solution by adding a polymer surfactant in an alcohol solvent; heating the solution; forming a metal seed by adding a first metal salt of at least one metal salt selected from the group consisting of platinum, palladium and iridium in the heated solution; and adding a second metal salt into the solution including the metal seed. This method allows the production of uniform-sized nanoparticles under high concentration conditions in high yield and mass production in which the metal nanoparticles have high dispersion stability so that they are suitable for various application.

Abstract: A liquid crystal display (LCD) device having an alignment film of which pretilt angle and azimuthal angle can be adjusted without ultraviolet irradiation and a method for fabricating the LCD device are provided. A liquid crystal display having a thin film transistor substrate and a color filter substrate facing each other and a liquid crystal layer sealed between the substrates includes a first alignment film having a pattern which defines a first and second alignment domains on the thin film transistor substrate and a second alignment film formed on the color filter substrate.