Abstract: An embodiment can provide a polyamide-imide film and a method for producing same, the film comprising a polyamide-imide polymer formed by polymerizing an aromatic diamine compound, an aromatic dianhydride compound and a dicarbonyl compound, wherein, in an XRD graph with a section in which 2?=8° to 32° as a baseline, the film shows a peak area of 50% or above around 2?=23° with respect to a peak area seen around 2?=15°.

Abstract: In a compaction scheme for a log structured merge (LSM) tree, a storage device is configured to: receive a first user data piece from a host; generate a first meta data piece for a highest level of the LSM tree, corresponding to the first user data piece; when the highest level exceeds a set storage limit, trigger a compaction process on the first and second meta data pieces to generate compacted meta data pieces excluding overlapping meta data elements of the second meta data pieces overlapped with the first meta data piece. Through a garbage collection, victim user data elements corresponding to the overlapping meta data elements are deleted.

Abstract: A positive electrode material has a bimodal particle size distribution which includes a first positive electrode active material and a second positive electrode active material having different average particle diameters (D50) from each other. The first positive electrode active material includes a lithium composite transition metal oxide. The number of primary particles of the first positive electrode active material is from 6 to 30, which is measured in a cross-sectional SEM image of secondary particles having an average particle diameter (D50), wherein the average particle diameter (D50) is a particle diameter measured through a laser diffraction particle size measurement instrument at which a maximum peak of a cumulative area particle size distribution of the first positive electrode active material appears. A preparation method thereof, and a lithium secondary battery including the positive electrode material are also provided.

Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.

Abstract: The present disclosure relates to a manufacturing process for daprodustat in which the level of an acyl impurity of Formula (II) is kept below 0.15% w/w in isolated daprodustat drug substance. Immediate release formulations of daprodustat containing a composition of daprodustat in which the level of the acyl impurity of Formula (II) is kept below 0.15% w/w relative to daprodustat drug substance are also disclosed. Medical uses of the immediate release formulation and dosage regimens are disclosed.

Abstract: Provided are a method and server for providing a content list. The method and server for providing a content list includes: providing source content to a chat room, receiving a request for providing a content list related to the source content from a first terminal of a first member; providing at least one of a first content list including at least one keyword-related content selected from among the entire contents stored in the server based on a keyword of the source content and a second content list including at least one group-related content belonging to the same group as a group of the source content among the entire contents, receiving information on selection content selected by the first member among the contents included in the at least one content list, from the first terminal, and providing the selection content to the chat room.

Abstract: The present invention relates to an attenuated Salmonella gallinarum strain and use thereof. Particularly, the present invention relates to: a novel attenuated Salmonella strain in which all of a gene encoding guanosine tetraphosphate (ppGpp) synthetase, a gene that induces the function of a type III secretion system (T3SS)(ssrAB), and a Gifsy 2prophage gene are deleted; and a composition for treating or diagnosing tumors by using same.

Abstract: Disclosed herein are a polypeptide having cephalosporin C(CPC) acylase activity and a use thereof. More specifically, a mutant CPC acylase comprising a point mutation introduced thereinto, thereby exhibiting improved enzymatic activity and/or stability, and a use of the mutant CPC acylase for producing 7-aminocephalosporanic acid (7-ACA), are provided.

Abstract: A system for manufacturing an optical display element by laminating an optical film on one surface of a rectangular organic light emitting display panel, the system including: a panel supply unit to which an organic light emitting display panel is supplied; a panel conveying unit which conveys the supplied organic light emitting display panel; an optical film supply unit which supplies an optical film by unwinding the optical film from a raw optical film roll; a laminating unit which laminates the optical film on one surface of the organic light emitting display panel; and a turning unit which rotates the organic light emitting display panel by 90° before the optical film is laminated on one surface of the organic light emitting display panel when a width-directional edge of the supplied organic light emitting display panel does not correspond to a width of the raw optical film roll.

Abstract: Disclosed herein is an in-building radio unit applied to an open LAN having an open base station structure. The in-building radio unit is configured to match a beam ID and a front-end unit based on beamforming information received from a base station; and communicatively connect a terminal and the base station via the matched front-end unit, the terminal and the base station being connected to the matched front-end unit.

Abstract: The present invention provides a positive electrode active material capable of achieving a battery having excellent capacity characteristics and life characteristics. The positive electrode active material includes a first lithium transition metal oxide and a second lithium transition metal oxide having an average particle diameter (D50) smaller than that of the first lithium transition metal oxide, wherein a particle strength of the first lithium transition metal oxide is 140 MPa or more, and a difference in particle strengths between the first lithium transition metal oxide and the second lithium transition metal oxide is 10 MPa or less. The present invention further provides a positive electrode and a lithium secondary battery which include the positive electrode active material.

Abstract: An electrode assembly, a battery, and a battery pack and a vehicle including the same is provided. At least one of the first electrode and the second electrode includes an uncoated portion at a long side end, a part of the uncoated portion is exposed to the outside of the separator along a longitudinal direction of the electrode assembly, at least a part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface, and the bending surface may include a region in which the number of overlapping layers of the uncoated portion is substantially kept constant as a criterion layer number along the radial direction The welding region of the current collecting plate welded to the bending surface may overlap with the region in which the number of overlapping layers of the uncoated portion is kept as the criterion layer number.

Abstract: A method of manufacturing a battery according to the present disclosure includes (a) preparing a battery housing having an opening at one side and a bottom having a through-hole at the other side; (b) fixing an electrode terminal to the through-hole; (c) preparing an electrode assembly including a first electrode tab formed of a first uncoated portion and a second electrode tab formed of a second uncoated portion at upper and lower parts, respectively; (d) inserting the electrode assembly into the battery housing through the opening at one side of the battery housing such that the first electrode tab faces the bottom; (e) electrically connecting the first electrode tab to the electrode terminal; and (f) covering the open end with a cap plate.

Abstract: Embodiments of the present invention provide an architecture of a large-scale storage system supporting snapshot. The system includes a storage; and a storage system coupled to the server through a network. The storage system includes: at least one storage device coupled to the server through the network; and a computing component coupled between the storage device and the network and configured to: generate snapshot data based on data for backup, which is stored in the storage device; compact the snapshot data; and transfer, to the storage, the compacted snapshot data through a storage client interface for the storage.

Abstract: In a compaction scheme for a log structured merge (LSM) tree, a storage device is configured to: receive a first user data piece from a host; generate a first meta data piece for a highest level of the LSM tree, corresponding to the first user data piece; when the highest level exceeds a set storage limit, trigger a compaction process on the first and second meta data pieces to generate compacted meta data pieces excluding overlapping meta data elements of the second meta data pieces overlapped with the first meta data piece. Through a garbage collection, victim user data elements corresponding to the overlapping meta data elements are deleted.

Abstract: This disclosure relates to a glasses-type augmented reality apparatus, and system with compact dimensions. An aspect of the present embodiment provides an augmented reality apparatus which provides a wearer with a digital holographic image incident from the outside as a holographic image, the apparatus including a plurality of holographic optical elements (HOEs) arranged in the form of concentric circles having different radii inside an optical configuration worn by the wearer to diffract the incident digital holographic image and provide the diffracted digital holographic image to the wearer.

Abstract: The present invention relates to a method of resetting a lighting device control apparatus by using a wall switch, capable of resetting an AP setting of the lighting device control apparatus more conveniently in a smart residential lighting device network system including: a plurality of lighting devices provided in an indoor space; a plurality of lighting device control apparatuses for individually or collectively controlling the lighting devices; a plurality of APs configured to perform WiFi communication with the lighting device control apparatuses, respectively; a user terminal for remotely controlling the lighting devices; a lighting device server configured to transmit a lighting device control signal generated by the user terminal to a lighting device control apparatus of a lighting device corresponding to the lighting device control signal; and a home gateway configured to perform relay between the APs and the lighting device server.

Abstract: A heat treatment apparatus includes a furnace body, a roller inside the furnace body, a heater inside the furnace body, an upper and lower discharge pipes on the furnace body, and a lower supply pipe on the lower part of the furnace body. The furnace body includes areas having the upper and lower discharge pipes, the areas including a first area to an Nth area disposed sequentially along a second direction being a transport direction of each of the materials, a length of the first area in the second direction is shorter than lengths of the second area to the Nth area in the second direction, and in each of the first area to the Nth area, the upper discharge pipe and the lower supply pipe are not arranged in a straight line in a third direction being a height direction to be misaligned from each other.

Abstract: Provided are a composition for culturing NK cells, and a method of culturing NK cells using the same. According to an aspect, in culturing NK cells from peripheral blood mononuclear cells, when NK cells are cultured in a medium including the composition for culturing NK cells, the composition including IL-15, IL-18, and IL-27, the NK cells may proliferate in large quantities and activation of NK cells may be promoted. Therefore, when the NK cells are used, cancer cell apoptosis or cancer cell-killing ability may be promoted. Accordingly, the NK cells may be used as an effective adoptive immune cell therapy product in cancer prevention or treatment.

Abstract: The present invention relates to a cold wallet apparatus. The cold wallet apparatus includes a homomorphic encryption generation module configured to generate homomorphic encryption using personally identifiable sensitive information; a first authentication code extraction module configured to extract an authentication code from the homomorphic encryption; a second authentication code extraction module configured to extract an authentication code from physical unclonable function (PUF) information of the cold wallet apparatus; a private key generation module configured to combine the authentication code extracted from the homomorphic encryption and the authentication code extracted from the PUF information to generate a private key; and a transaction signature module configured to perform a transaction signature using a wallet account and a wallet address generated based on the private key.