Abstract: A display device includes a display device including a substrate, and a display unit disposed on the substrate. An encapsulating unit encapsulates the display unit. The encapsulating unit includes a barrier organic layer. The barrier organic layer includes a plurality of organic materials and a plurality of inorganic materials. The inorganic materials are arranged in free volumes between the organic materials.

Abstract: A lithium metal composite oxide includes a primary particle having a hexagonal crystal structure, and a primary particle having a cubic crystal structure.

Abstract: A method for manufacturing a perovskite crystal structure includes preparing a substrate, disposing a stamp having a roll shape on the substrate, injecting a perovskite precursor solution between the substrate and the stamp, and drying the precursor solution to manufacture a perovskite crystal structure. The stamp rolls in a first direction on the substrate, and the precursor solution is continuously crystallized in the first direction between the substrate and the stamp to manufacture the perovskite crystal structure.

Abstract: Provided are a super water repellent polymer hierarchical structure, a heat exchanger having super water repellency, and a manufacturing method thereof A super water repellent polymer hierarchical structure can be simply and repeatedly manufactured by using only a method for utilizing a super water repellent hierarchical structure and mechanically molding a polymer material thereon. In addition, a heat exchanger having super water repellency can be provided by providing super water repellency on the fin surface of a heat exchanger by using a dip method and vacuum drying.

Abstract: A quantization device includes: a trellis-structured vector quantizer which quantizes a first error vector between an N-dimensional (here, “N” is two or more) subvector and a first predictive vector; and an inter-frame predictor which generates a first predictive vector from the quantized N-dimensional subvector, wherein the inter-frame predictor uses a predictive coefficient comprising an N×N matrix and performs an inter-frame prediction using the quantized N-dimensional subvector of a previous stage.

Abstract: Disclosed is a method of fabricating a gallium nitride substrate using a plurality of ion implantation processes.

Abstract: Disclosed a method of fabricating a gallium nitride substrate using hydride vapor phase epitaxy (HVPE), including a step of injecting ammonia (NH3) gas to perform first surface treatment on a sapphire substrate; a step of injecting ammonia gas and hydrogen chloride (HCl) gas to form a buffer layer on the sapphire substrate; a step of injecting ammonia gas to perform second surface treatment on the sapphire substrate; and a step of allowing gallium nitride (GaN) to grow on the sapphire substrate while lowering the flow rate ratio of ammonia gas to hydrogen chloride gas stepwise.

Abstract: The present invention relates to a novel pyrimidine-4-carboxylic acid derivative having an anticancer activity, and the compound thereof is useful as a drug for treating and preventing tumor diseases, wherein the compound is represented by the Formula 1: or a pharmaceutically acceptable salt thereof, wherein: Q is a C6-C15 aryl group; or a C4-C13 heteroaryl group, wherein the heteroaryl contains 1, 2 or 3 heteroatoms substituted with 1-3 heteroatom(s) selected from the group consisting of nitrogen, oxygen or sulfur; R is a halogen; a C1-C10 haloalkyl substituted with 1-13 halogen atom(s); a C1-C10 alkoxy; a 5- or 6-membered heterocycloalkyl or (CH2)r-R1 wherein the heterocycloalkyl contains 1-2 heteroatom(s) selected from the group consisting of nitrogen and oxygen; R1 is a hydrogen; a C1-C10 alkoxy; amino; mono(C1-C10 alkyl)amino; di(C1-C10 alkyl)amino; or —NHC(O)-phenyl; n is 1, 2, 3, 4, 5, or 6; and r is 0, 1, 2, 3, 4, 5, or 6; and m is 0, 1, 2 or 3.

Abstract: Disclosed a method of fabricating a gallium nitride substrate using hydride vapor phase epitaxy (HVPE), including a step of injecting ammonia (NH3) gas to perform first surface treatment on a sapphire substrate; a step of injecting ammonia gas and hydrogen chloride (HCl) gas to form a buffer layer on the sapphire substrate; a step of injecting ammonia gas to perform second surface treatment on the sapphire substrate; and a step of allowing gallium nitride (GaN) to grow on the sapphire substrate while lowering the flow rate ratio of ammonia gas to hydrogen chloride gas stepwise.

Abstract: A method for manufacturing a gas sensor may be provided, the method comprising the steps of: preparing a porous base substrate; providing, on the porous base substarte, a source solution having graphene dispersed in a base solvent; manufacturing a graphene-impregnated base substrate by means of a driving process; and forming a first electrode and a second electrode on the graphene-impregnated base substrate.

Abstract: A method for manufacturing a gas sensor may be provided, the method comprising the steps of: preparing a metal nanowire; manufacturing a thermoelectric composite by adding a polymer bead to the metal nanowire, and then mechanically mixing same; manufacturing a thermoelectric layer by hot-pressing the thermoelectric composite; forming a first electrode on the upper surface of the thermoelectric layer, and forming a second electrode on the lower surface of the thermoelectric layer; and disposing a heating catalyst layer on the first electrode.

Abstract: Provided are a scroll preparing method using a two-dimensional material and a scroll prepared thereby. The scroll preparing method comprises preparing a two-dimensional material. The two-dimensional material is scrolled by providing an amphiphilic substance having a hydrophilic portion and a hydrophobic portion on the two-dimensional material. As a result, a scroll composite including the amphiphilic substance disposed inside a scroll structure is formed.

Abstract: Disclosed are a method and apparatus for improving the accuracy of intra-prediction in order to improve encoding and decoding efficiency. The video decoding method may improve the prediction efficiency for the current pixel to be predicted by referring to the degree of variation in surrounding pixels, to thereby effectively decode the bit stream with improved encoding efficiency. In addition, an additional prediction candidate is used to achieve improved accuracy of intra-prediction, and the thus-improved accuracy of intra-prediction may reduce residual components and improve encoding efficiency. Further, an improved planar mode is utilized to achieve improved intra-prediction.

Abstract: Embodiments of the inventive concepts described herein relate to a positive electrode active material for lithium secondary battery, and more particularly, relate to a positive electrode active material for a lithium secondary battery having a new structure which includes a core portion having gradients of concentrations of nickel, manganese, and cobalt in a direction from a center to a surface and in which each of the concentration gradients of nickel, manganese, and cobalt has at least one vertex in the core portion.

Abstract: A three dimensional flash memory element with middle source-drain line and manufacturing method thereof. The three dimensional flash memory element includes a string including a channel layer extended in one direction and a plurality of electrode layers vertically layered for the channel layer; an upper wiring layer placed at the top of the string; at least one intermediate wiring layer placed between the plurality of electrode layers in the intermediate area of the string; and a lower wiring layer placed at the bottom of the string. Each of the upper wiring layer, the at least one intermediate wiring layer, and the lower wiring layer is adaptively used as any one of a drain electrode or a source electrode.

Abstract: The present invention relates to a hydrochromic polydiacetylene composite composition, a hydrochromic thin film using same, and a use thereof, and more specifically, to a hydrochromic polydiacetylene composite composition reacting sensitively to moisture, providing the hydrochromic thin film using same, and to applying same to biorecognition or fingerprint recognition. According to the present invention, moisture secreted from a fingerprint or pores on the skin can be detected with high sensitivity. Thus, the position of pores unique to a fingerprint of an organism can be amplified and displayed through selective color change and fluorescent change patterns exhibited when moisture is absorbed.

Abstract: A device for providing moving body information for a vehicle, according to one embodiment, includes an image acquisition unit acquiring a peripheral image of the vehicle, an image extraction unit extracting at least one of a first image of an upper body of at least one moving object or a second image of a lower body of the moving object from the peripheral image of the vehicle, and a moving object information determination unit determining at least one of presence/absence or a position of the moving object using at least one of the extracted first image or second image, wherein the image extraction unit extracts as the first image at least one of a ‘1-1’-st image of an entirety of the upper body or a ‘1-2’-nd image of a part of the upper body, and extracts as the second image at least one of a ‘2-1’-st image of an entirety of the lower body or a ‘2-2’-nd image of a part of the lower body.

Abstract: The present invention provides: a colloid having a self-iontophoresis capacity, comprising elastomer microparticles and a piezoelectric layer encompassing the same; a preparation method therefor; and a cosmetic composition containing the same. According to the present invention, iontophoresis occurs by itself without the help of additional instruments, thereby allowing water-soluble active ingredients in a cosmetic composition to be effectively and transdermally delivered and absorbed.

Abstract: The present invention relates to a stand equipped with a counterbalance unit, i.e., a stand consisting of links, joints, a front link, and a counterbalance unit. Therefore, even when various medical apparatuses including such as a microscope, etc. are used, a stable counterbalance can be maintained and the degree of freedom of movements of the medical apparatus can be easily adjusted according to the purpose of users.

Abstract: Disclosed are a method and apparatus for decoding an image using inter-prediction. The method of decoding an image using inter-prediction includes receiving a bitstream; acquiring a portion of information indicating a motion vector of a current block to be decoded in the received bitstream, obtaining the motion vector of the current block by using the acquired information to determine the remaining information other than the portion, and generating a prediction block for the current block through inter-prediction that uses the motion vector of the current block. Therefore, it is possible to improve image decoding/encoding efficiency.