Abstract: Disclosed is a method and apparatus for label encoding in a multi-sound event interval. The method includes identifying an event interval in which a plurality of sound events occurs in a sound signal, separating a sound source into sound event signals corresponding to each sound event by performing sound source separation on the event interval, determining energy information for each of the sound event signals, and performing label encoding based on the energy information.

Abstract: Provided are a load balancing method and device. The load balancing method comprises: a first base station to which a first cell belongs receiving beam load information, which is sent by a second base station to which a second cell belongs, of the second cell.

Abstract: The present invention relates to a loosening mechanism and an aerial fog generating device, wherein the loosening mechanism comprises a rotating portion; the rotating portion comprises an outer housing and an inner housing, the outer housing is sleeved onto the inner housing, and the inner housing is used for placing an aerial fog forming substrate; a pressing mechanism is provided on the inner housing, the outer housing is capable of moving along a circumferential direction, and the circumferential movement is converted into axial movement to drive the pressing mechanism to apply a radial pressing force to the aerial fog forming substrate; the inner housing is capable of being rotatably connected to the aerial fog generating device between a first position and a second position, and the aerial fog forming substrate and a heating element are capable of generating relative movement in the circumferential direction in the process from the first position to the second position; and the aerial fog forming substra

Abstract: A method for controlling vibration of flexible mechanical arms based on cooperative tracking is disclosed, including: building a dynamic model of the flexible mechanical arm, according to a dynamic characteristic, constructing a flexible mechanical arm group made up of a plurality of flexible mechanical arms, assigning one of the plurality of flexible mechanical arms as a leader and the rest ones as followers which are required to track the leader's motion trajectory so as to realize cooperative work; designing cooperative control-based boundary controllers in combination with a Lyapunov method to realize cooperative work and suppress vibration of the flexible mechanical arms; and constructing a Lyapunov function using Lyapunov direct method to validate stability of the flexible mechanical arms under the control.

Abstract: A flame-retardant ultraviolet-resistant aramid fiber, the preparation method therefor comprising the following steps: adding nanoparticles into a hydrogen peroxide solution, performing magnetic stirring for 0.5-1 h, adding a sulfuric acid solution, and further performing magnetic stirring for 0.5 h; performing filtering to obtain a filter cake, and washing the filter cake with water and drying same to obtain modified particles; modifying the modified particles with curcumin and dopamine to obtain organic substance-modified particles; and finally subjecting the organic substance-modified particles to a reaction with a silicon methoxylated aramid fiber, so as to obtain a surface-modified aramid fiber. The present invention has high ultraviolet absorption and extremely low catalytic activity, avoiding damage to a fiber structure by photocatalysis in a radiation process, and in particular improving flame retardancy of the aramid fiber.

Abstract: Disclosed herein are a method and apparatus for searching for a video section by using a natural language. The method for searching for a video section includes: extracting keywords from a natural language sentence, when the natural language sentence is input; determining whether or not the extracted keywords are included in predefined context information; and deriving and providing a final search result. In addition, when the extracted keywords are included in the predefined context information, a search result is derived by performing a first method, and when the extracted keywords are not included in the predefined context information, a search result is derived by performing a second method.

Abstract: An operation method of a terminal in a communication system may include receiving bandwidth part (BWP) change information from a base station in a BWP i; changing an operation BWP of the terminal from the BWP i to a BWP j even when a transmission and reception procedure of first data in the BWP i is not completed at a BWP changing point indicated by the BWP change information; and performing a data transmission and reception procedure of second data in the BWP j, wherein the BWP i and the BWP j are different BWPs, and i and j are different integers.

Abstract: Embodiments generate an optimized demand model for a retail item. Embodiments train a tree ensemble machine learning model comprising a plurality of trees, the training comprising storing upper bounds for each of the trees, the trees comprising levels and branches that correspond to the demand features that influence demand for the item. Embodiments generate an objective function for the demand model. At a top split of each tree, embodiments determine optimal child nodes using the stored upper bounds and calculate a new feasible region for each tree. Using bounds on the new feasible region, embodiments move down each tree to a next level of splits and generate the optimized demand model when a leaf node of every tree has been reached.

Abstract: Embodiments relate to a user authentication device configured to detect a face region in a target object image including at least part of a face of a target object, recognize masked or unmasked in the face region, extract target object characteristics data from the face region of the target object image, call reference data and authenticate if the target object is a registered device user based on the called reference data and the target object characteristics data. The reference data is generated from an unmasked image of the registered device user.

Abstract: An operation method of a terminal that receives a DRS in a mobile communication system operating in an unlicensed spectrum includes: receiving an SS/PBCH block included in the DRS; checking at least one monitoring occasion for a PDCCH for receiving RMSI on the basis of a PBCH included in the SS/PBCH; monitoring the at least one monitoring occasion and detecting the PDCCH for receiving the RMSI; and receiving a PDSCH including the RMSI on the basis of the detected PDCCH, wherein the at least one monitoring occasion is set to at least one symbol among symbols in front of the PDSCH and symbols behind the PDSCH. Accordingly, the DRS and data may be reliably transmitted and received in the mobile communication system operating in the unlicensed spectrum.

Abstract: This disclosure provides a conductive circuit carrier module including a carrier and a conductive circuit film layer. The conductive circuit film layer is disposed on the carrier. The conductive circuit film layer has at least one conductive circuit structure including a vertical wire part and at least four horizontal wire parts. The vertical wire part extends along a thickness direction of the conductive circuit film layer. The at least four horizontal wire parts are connected to one another via the vertical wire part and extend along a direction substantially perpendicular to the vertical wire part. The at least four horizontal wire parts are symmetrically arranged or asymmetrically arranged with respect to the vertical wire part.

Abstract: It is an object of the present invention to provide a catalyst for a cross-coupling reaction in which an organometallic complex is sufficiently immobilized on a carrier and an object product can be easily obtained in a high yield and in a relatively short reaction time with a relatively small amount of use. The catalyst for a cross-coupling reaction of the present invention has a carrier part composed of a synthetic resin and an organometallic complex part immobilized on the carrier part by chemical bonding, and has a structure represented by formula (P1), wherein in (P1) R1, R2 may be the same or different, and is a substituent such as a hydrogen atom. R3, R4, R5, R6, R8, R9 may be the same or different and are substituents, such as a hydrogen. X represents a halogen atom, and R7 represents a substituent having 3 to 20 carbon atoms with a ? bond. RS1 represents the main chain of the synthetic resin precursors having —CH2OH group at their end.

Abstract: An automated liquid sample device is disclosed.

Abstract: A method of providing an explanation of an artificial intelligence model based on a plug-and-plug mode includes a service provider server setting a type of an artificial intelligence model, a plug-and-play manager recognizing an artificial intelligence model and creating a list of available explanation modules on the basis of a recognition result when the artificial intelligence model is input, the service provider server providing key information on explanation modules to a user terminal, the user terminal selecting one of the explanation modules and notifying the service provider server of the selected explanation module, the plug-and-play manager deriving the selected explanation module from among the explanation modules in the list, and the derived explanation module providing an explanation of the input artificial intelligence model to the user terminal.

Abstract: A chip system is provided that includes a micropillar chip and a corresponding microwell chip. The micropillars are coated with an anchoring layer, e.g., polydopamine/polylysine/fibronectin, which anchors an amount of a hydrogel composition to the micropillars, the composition including a matrix and a concentration of cancer cells, such as those from a particular patient. Upon gelation, the composition forms a three-dimensional structure with a high cancer cell density mimicking a tumor microenvironment, e.g., allows culturing of the cancer cells in hypoxic conditions representative of the conditions at the patient's tumor. The 3D structures of composition on the micropillars are then stamped into corresponding microwells including media composed of a variety of treatments for testing against the cancer cells.

Abstract: A method for resource allocation of an advanced driver assistance system (ADAS) is described. The method includes dynamically tracking gaze directions of a vehicle operator regarding a scene surrounding an ego vehicle. The method also includes identifying operator monitored regions and operator unmonitored regions in the scene based on dynamically tracking the gaze directions of the vehicle operator. The method further includes allocating an increased portion of ADAS perception resources to the operator unmonitored regions of the scene. The method also includes tracking external road agents detected in the operator unmonitored regions of the scene using the increased portion of ADAS perception resources.

Abstract: A damping machining method for a long workpiece includes, when rotating the long workpiece in a state in which both end portions of the long workpiece are respectively held and cutting an outer circumferential portion of the long workpiece with a turning tool, applying a torsional load to the long workpiece.

Abstract: A charging system, configured to charge an electric vehicle, includes a plurality of movable energy storage devices and an operation center. Each movable energy storage device includes a carrier, a dynamic balancer disposed on the carrier, and an energy storage set including two flywheel energy storage modules disposed on the dynamic balancer and dynamically balanced relative to the carrier through the dynamic balancer. The operation center includes a charging station and a controller which is in communication connection with the movable energy storage devices. The controller is configured for instructing at least one movable energy storage device to move to the charging station for the charging station to charge the at least one energy storage set, or the controller is configured for instructing at least one movable energy storage device to move to the electric vehicle for the at least one energy storage set to charge the electric vehicle.

Abstract: Disclosed is a computing device, which includes a processor, a camera that captures RGB image data, a memory that stores image data including the RGB image data, and a pupil detection device that detects a pupil from the RGB image data stored in the memory in response to a request of the processor. The pupil detection device includes an image converter that receives the RGB image data, detects first eye area data including eye area information from the received RGB image data, and converts the first eye area data into second eye area data having IR (InfraRed) image characteristics by using a deep neural network, a pupil candidate detector that detects pupil candidate data from the second eye area data, and a pupil boundary detector that detects pupil boundary data from the pupil candidate data.

Abstract: An in-situ hydrophobically modified aramid nano aerogel fiber as well as a preparation method and uses thereof are provided. The preparation method includes: providing an aramid nano spinning solution; preparing a hydrophobically modified aramid nano aerogel fiber by using a spinning technology, wherein the coagulating bath adopted by the spinning technology includes a first organic solvent and a halogenated reagent including a monochloroalkane, a monochloroalkane, a dibromoalkane, a dichloroalkane and a trichloroalkane; and then drying to obtain the in-situ hydrophobically modified aramid nano aerogel fiber. The in-situ hydrophobically modified aramid nano aerogel fiber has a unique three-dimensional porous network structure, low heat conductivity, high porosity, high tensile strength and elongation at break, a certain spinnability and structure stability, and can be applied to the field of textiles. A fabric knitted with the hydrophobic fibers has a self-cleaning ability.