Abstract: The present disclosure relates to an organic electroluminescent compound represented by Formula 1 and an organic electroluminescent device. The organic electroluminescent device according to the present disclosure can exhibit a low driving voltage and a high current efficiency by having different structures of the compounds comprised in the first hole transport layer, the second hole transport layer, and the third hole transport layer and comprising a fluorene-amine, benzofluorene-amine, or naphthofluorene-amine structure in the second hole transport layer.

Abstract: Provided is a method for ensuring vivid colors and increasing display reliability and lifespan by implementing a colored pattern with high optical density on an electrode substrate, where the method uses a pigment dispersion in which a pigment having a size of 100 nm or less is used in order to increase the optical density and reduce roughness after completing the post-heat treatment process by including a colorant according to the present disclosure, and the method can minimize the reduction in the lifespan due to moisture in the panel state by minimizing the moisture content after completing the post-heat treatment process.

Abstract: The light emitting display device includes a substrate including a first display area and a bending display area, an anode on the substrate, a pixel defining layer having an opening exposing at least a portion of the anode, a light emitting layer in the opening of the pixel defining layer, a cathode covering the pixel defining layer and the light emitting layer, a encapsulation layer covering the cathode, and a light blocking layer on the encapsulation layer and having an opening corresponding to the opening of the pixel defining layer, wherein the opening of the pixel defining layer includes a first opening and a second opening, and the opening of the light blocking layer includes a first display opening in the first display area and a bending opening in the bending display area, and the bending opening is different in position, shape, or size from the first display opening.

Abstract: The composition inhibits severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via competitive binding to SARS-CoV-2 spike protein. The composition includes a plurality of sulfated glycosaminoglycans which bind to SARS-CoV-2 spike protein, preventing binding to and uptake by host cells. The sulfated glycosaminoglycans, including N-, 2-O, 3-O, or 6-O sulfate groups, or combinations thereof, include heparins and fucoidans, such as those isolated from brown seaweed. The compositions show antiviral activity, with EC50 as low as 0.08 ?M, and low cytotoxicity, making it promising for clinical use. While established SARS-CoV-2 treatments such as remdesivir need to be administered intravenously, the compositions discussed herein are advantageously capable to being delivered as a nasal spray, metered dose inhaler, oral delivery, etc.

Abstract: A microneedle therapy device equipped with a needle cover according to an example embodiment of the present disclosure includes a pneumatic pump, a valve configured to switch a supply and cutoff of a compressed air from the pneumatic pump into the needle cover, a microneedle arranged inside the needle cover and configured to move forward and backward from an opening of the needle cover, and a controller configured to control an opening and closing of the valve and the movement of the microneedle. The controller is configured to control an opening time of the valve based on information input by a user.

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

Abstract: A display device including: a display driving module including a display panel; a cover window including a central portion overlapping the display driving module and a curved portion surrounding the display driving module; and an outer structure disposed between the display driving module and the curved portion and surrounding the display driving module, wherein the outer structure is spaced apart from the display driving module.

Abstract: A method for manufacturing a secondary battery is provided. The method includes accommodating an electrode assembly in a battery case, injecting a first electrolyte composition into the battery case to impregnate the electrode assembly, injecting a second electrolyte composition into the battery case, and curing the second electrolyte composition, wherein an electrode tab is connected to the electrode assembly and protrudes to the outside of the electrode assembly, wherein the first electrolyte composition includes a 1-1st lithium salt containing at least one selected from the group consisting of lithium bis(fluorosulfonyl)imide (LiFSI) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and a first solvent, wherein the second electrolyte composition includes an oligomer and a second solvent and does not include lithium bis(fluorosulfonyl)imide (LiFSI) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI).

Abstract: A method for processing a video according to the present invention may comprise: generating a plurality of Most Probable Mode (MPM) candidates; determining whether there is an MPM candidate identical to an intra-prediction mode of a current block among the plurality of MPM candidates; obtaining the intra-prediction mode of the current block, based on a result of the determining; and performing an intra-prediction for the current block, based on the intra-prediction mode of the current block.

Abstract: A blood flow measuring device according to an embodiment of the present disclosure includes a linear array, a phased array, and a calculation unit. The linear array is divided into a plurality of sub-arrays, each of the plurality of sub-arrays transmitting a transmission ultrasonic signal to an object along a line corresponding to each of the plurality of sub-arrays. The phased array receives a reception ultrasonic signal obtained by reflecting the transmission ultrasonic signal from the object. The calculation unit calculates an energy for a doppler signal in a blood vessel region included in the object based on the reception ultrasonic signal.

Abstract: This disclosure provides compounds of Formula (I) as described herein, along with pharmaceutically acceptable salts, pharmaceutical compositions containing such compounds, and methods to use these compounds, salts and compositions for treating viral infections.

Abstract: A positive electrode active material includes a lithium transition metal oxide in the form of a single particle; and a coating part which is formed on the surface of the lithium transition metal oxide and contains cobalt. The lithium transition metal oxide in the form of a single particle has interfaces divided into a strong boundary having collapse of a layered structure in a crystal particle and a weak boundary having no collapse of the layered structure. The coating part is formed only at the strong boundary among the interfaces. A method for producing the positive electrode active material is also provided.

Abstract: An operating method of a terminal includes transmitting a purchase request signal of a digital recipe to a server, receiving the digital recipe from the server, transmitting a control signal including the digital recipe to an electronic device connected to the terminal, receiving a notification of completion of smoking using the digital recipe from the electronic device, and in response to the notification of completion of smoking, updating an available use of the digital recipe.

Abstract: A fuel cell vehicle includes a battery and a cell stack including a plurality of unit cells stacked one above another. The fuel cell vehicle also includes a boost converter configured to boost and output a target voltage received from the cell stack in response to a switching signal. The fuel cell vehicle further includes a switching unit configured to be switched in response to a control signal to connect an output side of the boost converter to the battery. The fuel cell vehicle additionally includes a controller configured to generate the control signal when startup of the fuel cell vehicle is requested. The controller is also configured to vary a switching frequency of the switching signal in response to a difference between a first voltage output from the cell stack and a second voltage of the battery.

Abstract: An anode active material for a secondary battery according to an embodiment of the present disclosure includes an anode current collector, and an anode active material layer on at least one surface of the anode current collector. The anode active material layer includes an anode active material that includes a natural graphite and an artificial graphite. The artificial graphite has a form of single particles. An orientation index expressed as I(004)/I(110) is 15 or less.

Abstract: A casting mold device includes a lower die and an upper die capable of being attached to or detached from the lower die and is configured to produce a cylinder head having spark plug mounting portions. In particular, the casting mold device includes: i) a plurality of core pin assemblies mounted in the upper die to form the spark plug mounting portions and having cooling air flow paths formed therein, ii) a cooling unit installed on the upper die and including cooling air inlet portions and cooling air outlet portions respectively connected to the cooling air flow paths of the core pin assemblies, and iii) a sealing unit coupled to the cooling unit and the upper die to seal portions between the core pin assemblies and the cooling unit.

Abstract: A drying apparatus includes an upper drying part including a first drying nozzle which is formed above an object to be dried and which extends along a width direction of the object, the upper drying part including a second drying nozzle formed on a same surface as the first drying nozzle. Furthermore, the drying apparatus includes a lower drying part including a lower drying nozzle which is formed below the object and which extends along the width direction of the object. The first and second drying nozzles are configured to dry the object with different heat sources. There is an effect that the drying deviation of the object may be minimized and the precision of the drying may be increased by effectively preventing the overdrying or non-drying of the object during the drying of the object.

Abstract: A method for preparing acrylic acid, the method including: obtaining a reaction product including unreacted lactic acid, water, a light gas component, and acrylic acid by supplying a lactic acid aqueous solution to a reactor to allow a dehydration reaction to proceed; supplying the reaction product to a first cooling tower to separate the reaction product into a lower fraction containing unreacted lactic acid and an upper fraction containing water, a light gas component, and acrylic acid; supplying the upper fraction of the first cooling tower to a second cooling tower to separate a lower fraction containing water and acrylic acid therefrom; and obtaining acrylic acid by purifying the lower fraction of the second cooling tower.

Abstract: An embodiment all-solid-state battery includes an anode current collector, a double layer disposed on the anode current collector, a solid electrolyte layer disposed on the double layer, the solid electrolyte layer including a solid electrolyte, a cathode layer disposed on the solid electrolyte layer, the cathode layer including a cathode active material, and a cathode current collector disposed on the cathode layer, wherein the double layer includes a protective layer disposed on the anode current collector and a metal alloy layer disposed on the protective layer, wherein the protective layer includes a reaction product of a conductive material containing a first functional group and a binder containing a second functional group, and wherein the metal alloy layer includes a metal capable of forming an alloy with lithium.

Abstract: A storage device may load, between a first time point at which information on candidate memory regions among a plurality of memory regions is started to be sent to an external device and a second time point at which a command requesting a map segment for a target memory region among the plurality of memory regions is received from the external device, all or a part of map segments corresponding to the candidate memory regions into a buffer.