Abstract: A battery module and an energy storage device are provided. The battery module includes at least two battery cells, each of the at least two battery cells having a respective top cover; at least one bus-bar, each of the at least one bus-bar being arranged above two respective adjacent top covers, and electrically connected to poles provided on the two adjacent top covers; and a liquid cooling tube provided on all the top covers and cooperates with the at least one bus-bar for heat transfer.

Abstract: A detachable aerosol-generating article is disclosed, the article includes: a cartridge, with a reservoir and a path formed therein; the path formed inside the reservoir and an atomizer, disposed inside the path and detachably connected with the cartridge; the cartridge further includes a first tube and a second tube; the second tube is sleeved on the first tube; the first tube and the second tube are relatively rotatable to each other; and the path is formed inside the first tube; the first tube is bored with a first liquid conductive hole; the second tube is bored with a second liquid conductive hole; when the cartridge and the atomizer are assembled, the first liquid conductive hole is aligned with the second liquid conductive hole, enabling tobacco liquid in the reservoir to flow to the atomizer; when the cartridge and the atomizer are detached.

Abstract: A data classification method and system, and a classifier training method and system are disclosed in the embodiments of the present disclosure, belonging to the field of artificial intelligence (AI), cloud technologies, and quantum technologies. The method includes: providing to-be-classified data to a quantum computer; performing feature mapping on the to-be-classified data by using a quantum circuit to obtain a quantum state of the to-be-classified data; determining an estimation result according to a boundary vector of a classifier, the quantum state of the to-be-classified data, and a quantum state of index information corresponding to the boundary vector; transmitting the estimation result to a classical computer. The quantum state of the index information refers to a superposition of feature maps of training data used by the classifier during training; and determining a classification result corresponding to the to-be-classified data according to the estimation result.

Abstract: A speaker includes: a frame, a vibration system including a diaphragm, a voice coil, and a flexible circuit board, and a magnetic circuit system, wherein the flexible circuit board includes an outer fixing portion, an inner fixing portion, and an elastic connecting arm, the inner fixing portion includes a first fixing portion electrically connected with the elastic connecting arm, a second fixing portion bent and extended from the first fixing portion in a direction away from the diaphragm, and a third fixing portion bent and extended from an end of the second fixing portion away from the first fixing portion in a direction of the voice coil, the third fixing portion is provided with a pad which is electrically connected with a bottom surface of the voice coil. Compared with the related art, the speaker disclosed by the present disclosure has better acoustic performance.

Abstract: The present disclosure provides an acoustic output apparatus including one or more status sensors, at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, at least two first sound guiding holes, and at least two second sound guiding holes. The status sensors may detect status information of a user. The low-frequency acoustic driver may generate at least one first sound, a frequency of which is within a first frequency range. The high-frequency acoustic driver may generate at least one second sound, a frequency of which is within a second frequency range including at least one frequency exceeding the first frequency range. The first and second sound guiding holes may output the first and second spatial sound, respectively. The first and second sound may be generated based on the status information, and may simulate a target sound coming from at least one virtual direction with respect to the user.

Abstract: A manufacturing method of a circuit board includes: providing a first double-sided copper laminate including a dielectric layer, a first copper foil layer and a copper plating layer, wherein the dielectric layer, wherein the dielectric layer defines a groove, the copper plating layer includes a first copper plating portion in the groove and a second copper plating portion beside the first copper plating portion. A double-sided circuit substrate including base layer and two first wiring layers is provided, wherein each first wiring layer includes a signal line. Conductive paste blocks are disposed in the base layer and on both sides of the signal line; and a first double-sided copper laminate is stacked on each side of the double-sided circuit substrate, disposing the signal line in the groove. The conductive paste blocks are pressed electrically connect same to the second copper plating portions. The present disclosure further provides a circuit board.

Abstract: An atomizing device includes a housing, an end lid and a cover. The end lid is disposed at an end of the housing, and is hermitically connected with the housing. The cover is disposed to cover around the end lid. A first conducting groove is disposed to extend circumferentially at a selective one of an outer wall of the end lid and an inner wall of the cover. A second conducting groove is spatially communicated with the first conducting groove, and an included angle is formed between the first conducting groove and the second conducting groove. A sliding piece is disposed at the rest of the outer wall of the end lid and the inner wall of the cover to mate with the first conducting groove and the second conducting groove. The sliding piece is disposed to move in the first conducting groove and the second conducting groove.

Abstract: The present disclosure provides an acoustic output apparatus. The acoustic output apparatus includes a speaker assembly, configured to convert an audio signal into a sound signal; an ear hook assembly, including an ear hook housing and a connecting part, the ear hook housing having an accommodating space to accommodate a battery assembly and/or a control circuit assembly, one end of the connecting part connecting to the speaker assembly, and the other end of the connecting part connecting to the ear hook housing, wherein the connecting part includes at least one first wire clamping part used to restrict a set of lead wires drawn out from the speaker assembly and extending into the accommodating space, the set of lead wires electrically connect the speaker assembly to the battery assembly and/or the control circuit.

Abstract: A resource transfer method performed by a terminal is provided. The method includes: receiving, through near field communication (NFC) by a terminal that is located within an identification range of a resource transfer interaction device, an application identifier (AID) selection request from the resource transfer interaction device; obtaining a target resource transfer AID based on the AID selection request; obtaining resource transfer data corresponding to the target resource transfer AID, and generating an AID selection response message based on the target resource transfer AID and the resource transfer data, the resource transfer data being located in a custom field of the AID selection response message; and transmitting the AID selection response message to the resource transfer interaction device, a resource transfer being performed based on the target resource transfer AID and the resource transfer data.

Abstract: An object recognition method is provided. The method includes: detecting an occlusion region of an object in an image, to obtain a binary image; obtaining occlusion binary image blocks; querying a mapping relationship between occlusion binary image blocks and binary masks included in a binary mask dictionary to obtain binary masks corresponding to the occlusion binary image blocks; synthesizing the binary masks queried based on each of the occlusion binary image blocks, to obtain a binary mask corresponding to the binary image; and determining a matching relationship between the image and a prestored object image, based on the binary mask corresponding to the binary image, a feature of the prestored object image, and a feature of the to-be-recognized image.