Abstract: An electrode assembly is made by winding a positive electrode, a separator, and a negative electrode, in which the negative electrode includes a negative electrode active material portion made by applying a negative electrode active material onto a negative electrode current collector, a central negative electrode non-coated portion positioned at a winding center portion and having no negative electrode active material, and a negative electrode non-coated portion including an outermost peripheral negative electrode non-coated portion positioned at an outermost winding periphery, in which a variable unit is provided on the outermost peripheral negative electrode non-coated portion and configured to adjust a length or width thereof, and in which the variable unit includes one or more cutout portions having a non-straight shape, and a variable portion configured to adjust a length or width thereof.

Abstract: A nanoparticle suitable for early strength development of concrete and a method for producing the same are disclosed. Composition containing the nanoparticles is also disclosed. The nanoparticle can be produced by a co-precipitation process, and have different early strength enhancing effects. Thus, the nanoparticle and the composition containing the nanoparticle can be used as an early strength agent for accelerating early strength development of concrete.

Abstract: A semiconductor device may include a substrate including a cell array region and a connection region, a stack including electrodes, which are vertically stacked on the substrate, and which have a staircase structure in the connection region, channel regions provided on the cell array region that vertically extend through the stack, and a planarization insulating layer that covers the stack in the connection region. The planarization insulating layer may include a first insulating layer in contact with the stack and a second insulating layer that covers the first insulating layer. The first insulating layer may include high-density plasma (HDP) oxide, which is doped with first dopants, and the second insulating layer may include tetraethyl orthosilicate (TEOS) oxide, which is doped with second dopants.

Abstract: Provided are techniques for building and using a sparse Time Series Database (TSDB). Time series records are received from a native TSDB, where each of the time series records includes a timestamp and one or more tags. Timeslots are determined for shards for the sparse TSDB based on the timestamp included in each of the time series records. The sparse TSDB is built by creating the shards for the determined timeslots and storing the time series records in the shards, while filling in empty ranges in the shards. A query that specifies at least one of the one or more tags is received. It is determined whether to execute the query against the sparse TSDB, and, in response to a determination to execute the query against the sparse TSDB, the query is executed against the sparse TSDB to generate results that are returned.

Abstract: The present disclosure relates to a method of deriving quality improvement requirements. The method according to some embodiments may include receiving a plurality of evaluation information for a first product from an evaluation information database, inputting the plurality of evaluation information into a key phrase extraction model and determining key phrases for the plurality of evaluation information based on an output of the key phrase extraction model, grouping some of the key phrases for the plurality of evaluation information into multiple groups and storing information on each of the multiple groups in a memory, ranking the key phrases included in each of the multiple groups and storing information associated with the ranks of the key phrases included in each of the multiple groups in the memory and determining top n key phrases from each of the multiple groups as quality improvement requirements.

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: A method, computer system, and a computer program product for risk analysis is provided. The present invention may include receiving an access request. The present invention may include analyzing a matrix barcode associated with the access request. The present invention may include validating the matrix barcode. The present invention may include providing a validation status to a user.

Abstract: An apparatus and method for inspecting lithium precipitation may form a magnetic field around a battery cell to be inspected to induce an eddy current and may compare measured impedance of the battery cell with standard data to detect lithium plating in the battery cell, thereby providing high stability and reliability.

Abstract: The present disclosure provides a reducer for an electric vehicle, the reducer including an input shaft connected to a motor, a differential disposed coaxially with the input shaft and relatively rotatable, a planetary gear train configured to decelerate power of the input shaft and transmit the power to a differential casing of the differential, and a drive shaft configured to penetrate the input shaft and coupled to one side gear of the differential.

Abstract: A dataset is determined to include skewed data and based on determining that the dataset includes skewed data, one or more sparse indexes for the skewed data of the dataset are built. A sparse index of the one or more sparse indexes is for a range of data of the skewed data, and the building the sparse index includes indicating one pointer for a selected record of the range of data and indicating another pointer for another selected record of the range of data. The sparse index is provided to be used in a query of the dataset.

Abstract: An adaptive approach to image bracket determination and a more memory-efficient approach to image fusion, which are designed to generate low noise and high dynamic range (HDR) images in a wide variety of capturing conditions, are described. An incoming preview image stream may be obtained from an image capture device. When a capture request is received, an analysis may be performed on an image from the preview image stream that has a predetermined temporal relationship to the image capture request. Based on the analysis, a set of images (and their respective capture parameters, e.g., exposure time) may be determined for the image capture device to capture. As the determined set of images are captured, they may be registered and fused in a memory-efficient manner that, e.g., places an upper limit on the overall memory footprint of the registration and fusion operations—regardless of how many images are captured in total.

Abstract: A display device includes a substrate including a pixel region and a peripheral region. A plurality of pixels is disposed in the pixel region of the substrate. Each of the plurality of pixels includes a light emitting element. Data lines and scan lines are connected to each of the plurality of pixels. A power line is configured to supply power to the plurality of pixels. The power line includes a plurality of first conductive lines and a plurality of second conductive lines intersecting the plurality of first conductive lines. The plurality of second conductive lines is arranged in a region between adjacent light emitting elements of the plurality of pixels. At least some of the plurality of second conductive lines extend in a direction oblique to a direction of extension of the data lines or the scan lines.

Abstract: The present application relates to a composition for preparing a temperature-sensitive hydrogel and a use thereof, and provides a temperature-sensitive hydrogel composition and a method for preparing a temperature-sensitive hydrogel composition using the composition, including a first agent in a liquid formulation including an aqueous solution containing chitosan and phosphate ions, including an aqueous solution containing 0.05 wt % to 3.5 wt % of chitosan and 0.1 wt % to 40 wt % of phosphate ions, based on the total weight of the first agent composition.

Abstract: The present disclosure provides a server heat dissipation system based on gravity heat pipe for dissipating heat from chip of a server, comprising: an evaporator arranged in a chassis of the server and being in thermal contact with the chip, said evaporator having a first cavity internally; a condenser arranged above the server, said condenser having a second cavity internally; and an heat-insulated pipe section passing through the chassis and connecting the evaporator and the condenser, and communicating the first cavity and the second cavity, wherein the evaporator, the condenser and the insulated pipe section are made to form a gravity heat pipe to accommodate working substance that realizes conversion cycles between liquid state and gaseous state by retracting and releasing heat; wherein the heat generated by the chip is transferred to the working substance in liquid state in the first cavity through the evaporator, the working substance absorbs heat and is converted into gaseous state, rising to the seco

Abstract: The present disclosure provides a reducer for an electric vehicle, the reducer including an input shaft connected to a motor, a differential disposed coaxially with the input shaft and relatively rotatable, a planetary gear train configured to decelerate power of the input shaft and transmit the power to a differential casing of the differential, and a drive shaft configured to penetrate the input shaft and coupled to one side gear of the differential.

Abstract: A reducer for an electric vehicle includes an input shaft connected to a motor, a differential disposed coaxially with the input shaft and relatively rotatable, a planetary gear train configured to decelerate power of the input shaft and transmit the power to a differential casing of the differential, and a drive shaft configured to penetrate the input shaft and coupled to one side gear of the differential.

Abstract: The present disclosure provides a reducer for an electric vehicle, the reducer including an input shaft connected to a motor, a differential disposed coaxially with the input shaft and relatively rotatable, a planetary gear train configured to decelerate power of the input shaft and transmit the power to a differential casing of the differential, and a drive shaft configured to penetrate the input shaft and coupled to one side gear of the differential.

Abstract: Disclosed is an acetyl-CoA-producing microorganism, which is obtained by imparting malate thiokinase and malyl-CoA lyase enzymatic activities to a microorganism having none of the following (a), (b), (c) or (d), without imparting any of (a), (b), (c) or (d), or, even when one or more of (a), (b), (c) or (d) are imparted, not allowing the functions thereof to be exerted: (a) a carbon dioxide fixation cycle having an enzymatic reaction from malonyl-CoA to malonate semialdehyde or 3-hydroxypropionate, (b) a carbon dioxide fixation cycle having an enzymatic reaction from acetyl-CoA and CO2 to pyruvate, (c) a carbon dioxide fixation cycle having an enzymatic reaction from crotonyl-CoA and CO2 to ethylmalonyl-CoA or glutaconyl-CoA or (d) a carbon dioxide fixation cycle having an enzymatic reaction from CO2 to formate.

Abstract: Provided is a method of producing a battery separator using surface modification treatment, which produces the battery separator by a dry process, satisfies air permeability and puncture strength properties required in the battery separator, and improves the thermal shrinkage and wettability of the battery cell, thereby appropriately responding to the trend for high-capacity and compact batteries. The method comprises: forming an unstretched sheet; subjecting the unstretched sheet to heat forming; cold-stretching the sheet subjected to the heat forming, thereby obtaining a cold-stretched film; hot-stretching the cold-stretched film by first hot stretching and second hot stretching; and heat-setting the film subjected to the second hot stretching, wherein corona discharge treatment is performed between the first hot stretching and the heat setting.

Abstract: An acetyl-CoA producing microorganism obtained by imparting at least one enzymatic activity selected from the group consisting of malate thiokinase, malyl-CoA lyase, glyoxylate carboligase, 2-hydroxy-3-oxopropionate reductase, and hydroxypyruvate reductase, to a microorganism that does not have any of the following (a), (b), (c), (d) or (e): (a) a carbon dioxide fixation cycle including an enzymatic reaction from malonyl-CoA to malonate semialdehyde or 3-hydroxypropionate; (b) a carbon dioxide fixation cycle including an enzymatic reaction from acetyl-CoA and CO2 to pyruvate; (c) a carbon dioxide fixation cycle including an enzymatic reaction from crotonyl-CoA and CO2 to ethylmalonyl-CoA or glutaconyl-CoA; (d) a carbon dioxide fixation cycle including an enzymatic reaction from CO2 to formate; or (e) at least one selected from the group consisting of malate thiokinase and malyl-CoA lyase.