Abstract: A jelly-roll has a structure in which a stack, which includes a first electrode having a first electrode tab with a first polarity; a second electrode having a second electrode tab with a second polarity; and a separator interposed between the first electrode and the second electrode, is wound in one direction, at least one of the first electrode tab and the second electrode tab has a plurality of slits formed along a winding direction of the jelly-roll, and a distance between the plurality of slits gradually increases from a core of the jelly-roll to an outer circumference thereof.

Abstract: The present invention relates to the preparation of an antibody analogue capable of being activated reversibly, and uses thereof, and provides a fusion protein comprising an inactive first fragment of an antibody analogue is fused to a stimulus-induced dimerization protein.

Abstract: A current collector for a secondary battery has a material having an elongation of 1.5 to 3.0% and a tensile strength of 25 to 35 kgf/mm2. An electrode, an electrode assembly, cylindrical battery cell, and battery pack are also provided.

Abstract: A drying device includes a first dryer configured to dry an electrode active material located in a coating boundary region having a boundary of a portion in which the electrode active material is coated and a portion in which the electrode active material is not coated on an electrode current collector, and a second dryer configured to dry at least the electrode active material located in a region other than the coating boundary region on the electrode current collector.

Abstract: A Chrysanthemum zawadskii (abbrev. to “Chrysanthemum”) extract with adjusted contents of each of indicator components of Chrysanthemum zawadskii (abbrev. to “Chrysanthemum”) is disclosed. The indicator components include linarin, chlorogenic acid and isochlorogenic acid. Also disclosed is a method for setting a standard for contents of the indicator components by identifying causes of the difference in properties of the Chrysanthemum extract or raw material and standardizing a preparation process from the analyzed causes of the difference in properties, to obtain a Chrysanthemum extract standardized by setting a content range of each indicator component in the Chrysanthemum raw material. Uses of the extract or a composition containing the extract are disclosed.

Abstract: Disclosed herein are a virtual item transaction method and apparatus based on participation of transaction entities. The virtual item transaction method is performed by a virtual item transaction agent to allow a physical item rights holder, a virtual item creator, and a virtual platform service provider to participate in a virtual item transaction, and includes receiving a virtual item creation request of the physical item rights holder, conducting bidding for virtual item source data corresponding to the virtual item creation request, and receiving an issuance request for a virtual item present in a virtual item issuance list from the virtual platform service provider.

Abstract: An electrode assembly including a first electrode, a second electrode, and a separation file interposed between the first electrode and the second electrode, the first electrode, the second electrode, and the separator being wound in one direction about a winding axis is provided. Each of the first electrode and the second electrode has a sheet shape with a pair of long sides and an uncoated portion not coated with an active material layer on one of the long sides. The first electrode includes at least one insulation layer that simultaneously covers a portion of the uncoated portion and a portion of the coated portion. A cylindrical battery cell and a battery pack are also provided.

Abstract: An electrode assembly includes a first electrode, a second electrode, and a separator interposed therebetween. The first electrode, the second electrode and separator are wound in a winding direction about a winding axis to define a core and an outer circumference of the electrode assembly. The first electrode includes an active material portion coated with an active material layer and a first non-coated portion not coated with the active material layer along the winding direction. The first non-coated portion includes a plurality of impregnation slits extending along a circumferential direction of the electrode assembly. Longitudinal extension lines of impregnation slits adjacent to each other along the circumferential direction do not overlap each other.

Abstract: A lithium secondary battery which includes an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material layer that includes a positive electrode active material, a conductive material, and a binder. The positive electrode active material may include a lithium nickel-containing oxide that has at least one of single particles or quasi-single particles, and the conductive material includes a combination of single-walled carbon nanotubes and bundle-type carbon nanotubes.

Abstract: This application relates to a location tracking device and method using a feature matching. The location tracking device may include a sensor, a camera, and a controller. The sensor is provided in a predetermined object and collects sensing information including at least one of speed, direction, gravity, and acceleration of the object. The camera is provided in the predetermined object and collects image information by capturing an image. The controller calculates an initial fundamental matrix (F0) by using the collected sensing information and calibration information of the camera, detects feature points of the image information, performs a feature matching in a fundamental matrix (F) by combining the initial fundamental matrix and the feature points, and tracks a location of the object by using a result of the feature matching.

Abstract: An identity recognition method includes a step of storing multiple training data sets that respectively correspond to gaits of multiple members, a step of obtaining a gait similarity estimation model that is established by training a Siamese neural network using the training data sets, a step of obtaining a piece of inertial data that corresponds to a step taken by a user, a step of generating, based on the piece of inertial data, a piece of feature data that is related to gait of the step taken by the user, a step of generating, based on the piece of feature data and the training data sets, multiple evaluation results that respectively correspond to the training data sets by using the gait similarity estimation model, and a step of determining whether the user belongs to a group consisting of the members based on the evaluation results and a predefined threshold.

Abstract: A head-mounted device for reducing symptoms of cybersickness includes a main shell, and a stimulation unit. The main shell includes first, second and third tube bodies that are arc-shaped and that are worn respectively on the top and back of the user’s head and the user’s ear. The stimulation unit includes first, second and third components that are received respectively in the first, second and third tube bodies, that are movable in a rolling, sliding or flowing manner with low friction, and that are configured to generate and transmit a stimulation force, through one end of the respective one of the first, second and third tube bodies, to the use’s vestibular system in respond to movement of the user’s head.

Abstract: An electrode assembly having a jelly-roll type structure in which a first electrode current collector, a second electrode current collector, and a separator located between the first electrode current collector and the second electrode current collector are wound in one direction. At least one of the first electrode current collector or the second electrode current collector includes an uncoated portion exposed to outside of the separator. A cutting line is provided in the axial direction of the electrode assembly in the at least one of the uncoated portion. The uncoated portion in which the cutting line is provided is divided into a remaining area remaining to protrude in a winding axis direction and a bent target area bent in a preset direction. At least a part of the uncoated portion included in the bent target area is bent to have a plurality of layers overlapping in a bending direction.

Abstract: A lithium secondary battery which includes an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material layer, and the positive electrode active material layer includes scaly graphite and positive electrode active material powder including single particles, quasi-single particles, or a combination thereof.

Abstract: Disclosed is a detachable device for repeatedly measuring textural characteristics of food. To this end, the present invention includes: a fixing unit having a probe guide member having, at a center thereof, a predetermined guide hole, having therein a predetermined space, and extending downward; a cylindrical probe configured to move upward and downward while surrounding the probe guide member and having multiple holes formed in a lower surface thereof so that a part of food is extracted in accordance with a degree of compression at the time of compressing the food; a food sample cup positioned below the cylindrical probe and having therein a space in which the food is placed; and multiple position fixing guides positioned between the fixing unit and the food sample cup.

Abstract: Proposed is a hydraulic cylinder rod in which a rod eye is robustly coupled to a hybrid round rod for weight reduction. To this end, the hydraulic cylinder rod is configured with a hybrid round rod including a metal tube and a composite material round rod provided for weight reduction inside the metal tube, wherein a side of the metal tube is formed to be relatively longer than the length of the composite material round rod to thereby provide a space defined by a length difference therebetween; and a rod eye is coupled to the space.

Abstract: This application relates to a location tracking device and method using a feature matching. The location tracking device may include a sensor, a camera, and a controller. The sensor is provided in a predetermined object and collects sensing information including at least one of speed, direction, gravity, and acceleration of the object. The camera is provided in the predetermined object and collects image information by capturing an image. The controller calculates an initial fundamental matrix (F0) by using the collected sensing information and calibration information of the camera, detects feature points of the image information, performs a feature matching in a fundamental matrix (F) by combining the initial fundamental matrix and the feature points, and tracks a location of the object by using a result of the feature matching.

Abstract: Proposed is a CFRP surface coating method and a hydraulic cylinder including a component coated by the method. The CFRP surface coating method can prevent damage to a CFRP surface due to thermal spray coating and increase the bonding strength between a CFRP surface and a metal coating layer formed by the thermal spray coating. To this end, the method includes: forming a mesh layer on a CFRP surface; fixing the mesh layer on the CFRP surface by impregnating a heat-resistant resin therein; and forming a metal coating layer by thermal spray coating on the fixed mesh layer in which the heat-resistant resin is impregnated.

Abstract: Disclosed is a detachable device for repeatedly measuring textural characteristics of food. To this end, the present invention includes: a fixing unit having a probe guide member having, at a center thereof, a predetermined guide hole, having therein a predetermined space, and extending downward; a cylindrical probe configured to move upward and downward while surrounding the probe guide member and having multiple holes formed in a lower surface thereof so that a part of food is extracted in accordance with a degree of compression at the time of compressing the food; a food sample cup positioned below the cylindrical probe and having therein a space in which the food is placed; and multiple position fixing guides positioned between the fixing unit and the food sample cup.

Abstract: The present invention relates to the preparation of an antibody analogue capable of being activated reversibly, and uses thereof, and provides a fusion protein comprising an inactive first fragment of an antibody analogue is fused to a stimulus-induced dimerization protein.