Abstract: A method for estimating locomotion in virtual reality performed by at least one processor includes measuring a plurality of pressure points according to a user's locomotion using a high-resolution tactile sensor including a plurality of pressure sensors, extracting a plurality of footprint images including the plurality of measured pressure points, clustering the plurality of pressure points into a first set of pressure points corresponding to a left foot and a second set of pressure points corresponding to a right foot, based on the plurality of extracted footprint images, and estimating at least a portion of a locomotion direction and a locomotion speed of the user using a first cluster corresponding to the first set of pressure points and a second cluster corresponding to the second set of pressure points.

Abstract: Proposed are a substrate processing apparatus and a substrate processing method capable of efficiently preventing contamination of a substrate and a processing space caused by a reverse flow of purge gas.

Abstract: A sensor cleaning device includes a sensor cover configured to cover an outer surface of a sensor lens. The sensor cleaning device also includes a moving unit configured to support the sensor cover and move the sensor cover between a first position and a second position. The sensor lens is covered by the sensor cover positioned at the first position and uncovered by the sensor cover positioned at the second position. The sensor cleaning device also includes a cleaning unit configured to clean an outer surface of the sensor cover upon the sensor cover being moved to the second position.

Abstract: A Merkle tree-based data management method may comprise: aligning data into two-dimensional square matrix; calculating a hash value of each node of the two-dimensional square matrix; calculating hash values of each row of the two-dimensional square matrix; generating an additional column with nodes having the hash values of each row; calculating hash values of each column of the two-dimensional square matrix; generating an additional row with nodes having hash values of each column; and calculating a Merkle root by concatenating the hash values of the additional column and the hash values of the additional row.

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.

Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

Abstract: The present disclosure relates to a window film and a method of manufacturing the same. More particularly, the present disclosure relates to a window film and a method of manufacturing the same that prevents a mirror phenomenon from occurring and prevents thermal energy absorbed by the film from being re-emitted into the interior of the film and from increasing the temperature of the room.

Abstract: A rechargeable battery pack includes: a battery housing provided with an inner space; a series of unit battery cells accommodated in the inner space, each unit battery cell including a first electrode terminal and a second electrode terminal at respective upper and lower portions thereof; and a bus bar module electrically connected to the first electrode terminal and the second electrode terminal of each unit battery cell. The bus bar module may include a first bus bar electrically connected to the first electrode terminal at the upper portion of the unit battery cells, a second bus bar electrically connected to the second electrode terminal at the lower portion of the unit battery cells, and a connector part electrically connected to the first bus bar and the second bus bar.

Abstract: In an embodiment a system includes a training data preparation device configured to obtain a speech recognition rate of speech data for training using a target speech recognition model, a recognition rate prediction model configured to estimate an expected recognition rate of the target speech recognition model for clean speech data in which noise is removed from the speech data for training and a speech preprocessing model configured to preprocess the speech data for training to obtain the clean speech data and to update the speech preprocessing model based on a recognition rate loss corresponding to a difference between the expected recognition rate and a maximum recognition rate.

Abstract: A flexible self-supporting solid electrolyte membrane, an all-solid-state battery including the membrane, and a manufacturing method thereof are disclosed. The solid electrolyte membrane may include: a substrate including pores therein; and a solid electrolyte layer disposed on at least one surface of the substrate and including a solid electrolyte and a cured compound. At least a portion of the solid electrolyte layer may penetrate into the pores of the substrate to form a conduction path of lithium ions in a thickness direction of the substrate.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a plurality of active material layers sequentially disposed on the cathode current collector which include different types of cathode active material particles from each other. DA determined by the present disclosure of an active material layer closest to the cathode current collector among the plurality of active material layers is 0.5 ?m or less.

Abstract: A quick connector for connection to a complementary counterpart comprises a coupling piece and a retainer for a section of a fluid having a coupling center axis defining an axial direction AD, a radial direction RD and a circumferential direction CD. The retainer is allocated to the coupling end, wherein the retainer has at least one retaining element for retaining the counterpart and at least one actuating element for opening the retainer for pulling the counterpart out of the coupling piece. The coupling piece comprises a first flange at the coupling end, wherein the first flange has a flange opening so as to insert a tool into the flange opening so that the tool can exert a force on the retainer and the actuating element, respectively. The flange opening has an outer border, wherein the outer border lies in radial direction RD outward of the flange opening.

Abstract: A power supply of a motor for a vehicle includes: a terminal block mounted to a motor housing to prevent disconnection of a terminal connection portion configured to supply power to a stator coil of the motor; a terminal plate electrically connected to the terminal block; a bus bar provided on the terminal plate; a stator coil having a conductive connection terminal electrically connected to the bus bar; and an elastic member mounted to the bus bar and the conductive connection terminal to reduce vibration applied to the bus bar and the conductive connection terminal.

Abstract: This disclosure relates to a foam-molding mold having channels formed therein and a physical foaming process using the same, and more specifically, the foam-molding mold is characterized by comprising a cavity formed therein for accommodating mixed resin for foaming, and having channels formed therein for guiding gas to the cavity.

Abstract: A reliable lithography model generating method reflecting a mask bias variation and a mask manufacturing method including the lithography model generating method are provided. The lithography model generating method includes preparing basic image data for learning, preparing transform image data that indicates a mask bias variation, generating a lithography model by performing deep learning by combining the basic image data and the transform image data, and verifying the lithography model.

Abstract: A device for folding a seat may include: a lower arm stopper fixed to a predetermined radial position with respect to a reclining hinge shaft of a seatback as a center; a lock plate configured to rotate about a rotation shaft as a center while being hooked to the lower arm stopper in a process of reclining forward together with the seatback with respect to the reclining hinge shaft as the center; and a folding link limited to rotate by being hooked to the lock plate and configured to make folding rotation together with the seatback with respect to a folding hinge shaft, as a center, located at a part above the reclining hinge shaft, by being released from being hooked to the lock plate according to the rotation of the lock plate.

Abstract: A battery pack includes: a plurality of battery cells; and a sensing substrate configured to collect state information from the plurality of battery cells. The sensing substrate includes: a main body; branch portions connected to the main body and spaced apart from the sensing substrate such that first deformation accommodating spaces are formed between the main body and the branch portions; and ring units connected to the branch portions and forming second deformation accommodating spaces.

Abstract: A battery pack includes: battery cells; and sensing units for acquiring state information of the battery cells. The sensing units include: sensing substrates extending in a first direction and having a first position at where sensing devices are positioned; and sensing terminals connected to the sensing substrates at a second position different from the first position and connected to the battery cells to acquire the state information. The sensing substrates and the sensing terminals overlap each other at the first and second positions in a second direction and extend to cross each other so that upper and lower positions are reversed in the second direction.

Abstract: A rechargeable battery pack including: a plurality of unit battery packs stacked and coupled to each other in multiple stages, the unit battery packs having a cooling water line formed therein to circulate cooling water inside the unit battery pack; and a connection part connecting the cooling water line in adjacent ones of the unit battery packs to each other such that the cooling water line is configured to circulate cooling water therebetween.

Abstract: The present invention relates to a water degradable film comprising hyaluronic acid or a salt thereof and polyphenol compounds. The film of the present invention can transcribe nanofilms in the form of CNT (carbon nanotube), graphene and magnetic particles to various places. The film of the present invention can be dissolved by an aqueous solution or body fluid, and can be effectively used in the medical field since it is non-toxic and biocompatible. The film of the present invention can also be effectively used as a transcript that does not degrade the quality and performance of the device because no residue remains in the electronic device and the existing photolithography process.