Abstract: Disclosed herein is a once-through heat exchanger that includes a tube stack including a plurality of tubes, a plurality of heads connected to the tube stack via a connection module and configured to accommodate heated steam, the connector module comprising a plurality of tube connectors and configured to connect the tubes and the heads, and a manifold connected to the heads via a plurality of link pipes and configured to accommodate heated steam, wherein the connector module comprises a first tube connector and a second tube connector having different shapes.

Abstract: A display including a base, a plurality of pixels disposed on the base, at least one of the pixels including a first interconnect and a plurality of second interconnects, and a plurality of mounting portions on which a plurality of sub-pixels is to be mounted, in which a first portion of at least one the plurality of mounting portions is electrically connected to the first interconnect, a second portion of at least one of the plurality of mounting portions is electrically connected to one of the second interconnects, and at least one of the plurality of sub-pixels mounted on the plurality of mounting portions is configured to emit light of different wavelength.

Abstract: A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.

Abstract: A battery pack is provided including at least one rechargeable secondary battery; a battery frame having a battery accommodation portion configured to accommodate the at least one secondary battery; a packaging member provided in the form of an adhesion sheet having an adhesive surface formed at one surface thereof, the packaging member including a body portion fixedly adhered to an upper portion of the secondary battery accommodated in the battery frame and a fixing portion bent and extended downward from the body portion and having the adhesive surface fixedly adhered to an outer surface of an outermost edge of the battery frame; and an anti-noise member attached to at least one portion of the adhesive surface of the packaging member.

Abstract: A cylindrical secondary battery module includes a plurality of cylindrical secondary battery cells having an electrode assembly and an electrolyte accommodated therein; a cell frame in which the plurality of cylindrical secondary battery cells are disposed; and a bus bar coupled to each of a plurality of cylindrical secondary battery cells and having a plurality of welding portions thereon. Among the plurality of welding portions, the welding portions spaced apart at larger intervals are welded to each other.

Abstract: Proposed is a compound represented by Formula 1, where R1 is an alkyl group having 9 to 30 carbon atoms, an alkenyl group having 9 to 30 carbon atoms, or an alkynyl group having 9 to 30 carbon atoms, R2 is hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms, and R3 to R5 are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms. Alternatively, at least two of R3 to R5 are bonded together to form a hydrocarbon ring having 5 or 6 carbon atoms. In addition, proposed are a lube base oil and a lubricant composition comprising the compound.

Abstract: A display device includes a display panel, a filler layer, a reflection control layer, a plurality of light-blocking patterns, and an encapsulation substrate. The low reflection layer is disposed on the display panel. The filler layer is disposed on the display panel. The reflection control layer includes a first catalyst and is disposed on the filler layer. The plurality of light-blocking patterns is disposed between the filler layer and the reflection control layer. The encapsulation substrate is disposed on the reflection control layer.

Abstract: The present invention relates to a positive electrode active material having improved capacity characteristic and life cycle characteristic, and a method of preparing the same, and specifically, to a positive electrode active material for a lithium secondary battery, wherein the positive electrode active material comprises a compound represented by Formula 1 above and allowing reversible intercalation/deintercalation of lithium, and from a crystal structure analysis of the positive electrode active material by a Rietveld method in which space group R-3m is used in a crystal structure model on the basis of an X-ray diffraction analysis, the thickness of MO slab is 2.1275 ? or less, the thickness of inter slab is 2.59 ? or greater, and the cation mixing ratio between Li and Ni is 0.5% or less, and a method of preparing the same.

Abstract: A battery module is composed of a plurality of battery cells according to an embodiment of the present invention and includes one positive output terminal formed by connecting the plurality of battery cells, one negative output terminal formed by connecting the plurality of battery cells, a field effect transistor (FET) provided on a current path between the positive output terminal and an external device, a temperature information measurer for measuring temperature information of the plurality of battery cells, and a protection integrated circuit (IC) chip for controlling the FET.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially disposed on an optical axis from an object side toward an image side. A distance from an object-side surface of the first lens to an imaging plane of an image sensor is TTL, an overall focal length of an optical system including the first to sixth lenses is F, and TTL/F?0.83. An optical axis distance between the second lens and the third lens is D23, an optical axis distance between the third lens and the fourth lens is D34, and 2.2<D23/D34<5.4.

Abstract: A display including a base and a plurality of light sources disposed on the base, at least one of the light sources including a first interconnect and one or more second interconnects, and a plurality of mounting regions on which a plurality of sub-light emitting devices is to be mounted, in which a first region of each of the plurality of mounting regions is electrically connected to the first interconnect, a second region of each of the plurality of mounting regions is electrically connected to one of the one or more second interconnects, and at least one of the plurality of sub-light emitting devices mounted on the plurality of mounting regions is configured to emit light of different wavelength.

Abstract: A display apparatus including a substrate, a first sub-pixel, a second sub-pixel, and a third sub-pixel disposed on the substrate and configured to emit red light, green light, and blue light, respectively, partition walls disposed between the first sub-pixel, the second sub-pixel, and the third sub-pixel, and configured to not transmit light, in which the first sub-pixel, the second sub-pixel, and the third sub-pixel include a first light emitting cell, a second light emitting cell, and a third light emitting cell, respectively, and a height of each of the first, second, and third light emitting cells is lower than a height of the partition walls, and a difference between the height of the partition walls and the height of each of the first, second, and third light emitting cells is less than 100 ?m.

Abstract: An incubator for cell and tissue culture under controlled atmospheric conditions has a primary air flow control device that forms a primary, preferably laminar flow, air veil across an opening that allows access to the cells or tissue cultures disposed within the incubator. Preferably, most if not all of the air in the primary (laminar flow) air veil is recirculated, and a secondary air flow control device is used that forms a secondary, preferably laminar flow, air veil between the primary (laminar flow) air veil and a user of the incubator.

Abstract: A storage device of the present disclosure includes a memory device configured to store a plurality of address maps indicating a mapping relationship between a logical address and a physical address, and a memory controller configured to, when the storage device is in a power on state from a power off state, determine a priority rank of each of the plurality of address maps based on file attribute information received from a host and sequentially load the plurality of address maps according to the priority rank.

Abstract: This application describes a method, a device, and a computer readable recording medium for managing an externally imported file. The method may be performed by determining that a created file is a monitoring target file based on a target extension and a target process of management policy information received from a management server, collecting file information of the file in response to the file being determined as the monitoring target file, determining whether the file is an externally imported file based on the file information and network traffic information, and recording import information in the file information in response to the file being determined as the externally imported file.

Abstract: A battery module according to embodiments of the present disclosure may include battery cells having a battery can and a top cap coupled to the battery can; a cell frame provided to accommodate and fix the battery cells therein; bus bar plates spaced apart from each other and disposed on an outer side of the cell frame and electrically connected to the battery cells; and an inter connection board (ICB) assembly having sensing plates electrically connected to the bus bar plates, respectively, and mounted on another outer side of the cell frame, wherein each of the bus bar plates and each of the sensing plates have portions that overlap vertically and are fixed so as not to move relative to each other, and are electrically connected by a conductive wire.

Abstract: A multi-battery pack includes a plurality of stacked battery packs, and a plurality of long bolts to couple the plurality of battery packs to each other and to fix the plurality of battery packs to a device. Each of the battery packs includes a plurality of battery cells and a case to receive the plurality of battery cells therein. The case includes a case frame to receive the battery cells therein and to have a plurality of through-holes through which the long bolts are inserted, a lower cover coupled to a lower part of the case frame; and an upper cover coupled to an upper part of the case frame. The upper cover includes a circular first fastening hole and a second fastening hole having one side open in a C-shape wherein the first and second fastening holes allow the long bolts to be fastened therethrough.

Abstract: An incubator for cell and tissue culture under controlled atmospheric conditions has a primary air flow control device that forms a primary, preferably laminar flow, air veil across an opening that allows access to the cells or tissue cultures disposed within the incubator. Preferably, most if not all of the air in the primary (laminar flow) air veil is recirculated, and a secondary air flow control device is used that forms a secondary, preferably laminar flow, air veil between the primary (laminar flow) air veil and a user of the incubator.

Abstract: A display apparatus including a substrate, a first sub-pixel, a second sub-pixel, and a third sub-pixel disposed on the substrate and configured to emit red light, green light, and blue light, respectively, partition walls disposed between the first sub-pixel, the second sub-pixel, and the third sub-pixel, and configured to not transmit light, in which the first sub-pixel, the second sub-pixel, and the third sub-pixel include a first light emitting cell, a second light emitting cell, and a third light emitting cell, respectively, and a height of each of the first, second, and third light emitting cells is lower than a height of the partition walls, and a difference between the height of the partition walls and the height of each of the first, second, and third light emitting cells is less than 100 ?m.