Abstract: The present invention relates to a subway vehicle electronic record system based on blockchain technology, which mainly includes business view module, record information maintenance module, statistical analysis module, record information management module, system management module, and blockchain foundation platform. The invention comprehensively makes use of blockchain, database and other technologies to normalize heterogeneous data of subway vehicle record.

Abstract: A method of producing a MOF-based material is provided. The method can include preparing an aqueous solution that includes a first reactant, a second reactant different from the first reactant, and a reaction modulator. The first reactant can include a metal compound and the second reactant can include an organic ligand. The method can include synthesizing a crude product that includes a metal-organic frameworks (MOFs)-based material in the aqueous solution. The MOFs-based material can have a structure that includes a metal ion or a metal cluster of the first reactant linked by the organic ligand of the second reactant. The method can include extracting the crude product from the aqueous solution. The method can include purifying the extracted crude product. The method can further include drying the purified crude product to obtain the MOFs-based material.

Abstract: Methods for transferring optically active features, such as meta-atoms and diffractive elements, formed on a planar surface to a non-planar surface with high precision are described. Optical devices having meta-atoms or other diffractive features located on non-planar and/or planar surfaces can be fabricated using the described methods. Related optical systems and components are described.

Abstract: A method for detecting a topological structure of a grounding grid under extremely cold condition, includes the following steps: in a substation in an extremely cold area, determining a measuring area S on a ground surface of a grounding grid according to the positions of branches and nodes of the grounding grid in a selected area, acquiring dynamic current values of the branches and nodes through a current sensor based on TMR tunnel magnetoresistance, and then indirectly acquiring the magnetic induction intensity of the measuring area S through conversion; calculating moduli of first to third derivatives of magnetic induction intensities; and determining specific positions and laying depths of the branches of the grounding grid according to peak distances between main lobe peaks and side peaks between strong peaks of the moduli. According to the method, the calculation amount is greatly reduced, and the detection method has strong anti-interference.

Abstract: A flexible systolic in-memory array testing device including a sub-board array is provided. Each of a plurality of sub-boards in the sub-board array includes a chip socket, a digital-to-analog conversion module, a driving module, a differential readout module, an analog-to-digital conversion module, a shift and accumulation module, and first to fourth bidirectional ports. The chip socket is placed with an in-memory array chip. The digital-to-analog conversion module converts an input vector into a voltage signal. The driving module provides a driving current. The differential readout module includes two inverting amplifier circuits and one adder-subtractor circuit, performs differential sampling on a result of the in-memory chip, and then performs outputting to the analog-to-digital conversion module for analog-to-digital conversion. The shift and accumulation module then performs shift accumulation on an analog-to-digital conversion result and digital signals from other sub-boards to obtain a result vector.

Abstract: This application provides a method of processing hair for a virtual object performed by an electronic device. The method includes: obtaining an initial position of each of hair particles of virtual hair of a virtual object; obtaining a physically simulated position of the hair particle by performing physical simulation on a movement of the hair particle in a physical movement based on the initial position of the hair particle; fusing the initial position and the physically simulated position of the hair particle, to obtain a fused position of the hair particle; and rendering the virtual hair of the virtual object based on the fused positions of the hair particles, to obtain rendered virtual hair.

Abstract: Embodiments of the present disclosure include systems and methods for providing sparsity for neural network models based on sparsity attributes. A first neural network model definition is received. The first neural network model definition specifies a neural network model comprising a set of tensors and a set of sparsity attribute values for elements of a tensor in the set of tensors. The set of sparsity attribute values for the tensor are propagated to elements of a subset of the set of tensors to form a second neural network model definition. The neural network model is generated based on the second neural network model definition.

Abstract: A method and system are provided for detecting an object within a predetermined region around a magnetic resonance imaging device. The method comprises: acquiring an image captured for a space where the magnetic resonance imaging device is located, the image including an edge of at least a portion of the predetermined region around the magnetic resonance imaging device; performing object detection according to the image; and determining, according to a result of the object detection and position information of at least the portion of the predetermined region, whether the object exists within the predetermined region. This approach enables detection of an object within a restricted region of a magnetic resonance imaging device, thereby achieving safety monitoring of the environment around the magnetic resonance imaging device.

Abstract: A wafer scale system-in-package structure and a method for forming the same, are provided. The package structure includes: a silicon substrate comprising an upper surface and a lower surface opposite to the upper surface; functional submodules mounted on the upper surface of the silicon substrate and arranged in an array, wherein each of the functional submodules comprises four corners and four edges each between adjacent corners, and the functional submodules are electrically connected to the silicon substrate; a first bridge structure mounted on the upper surface of the silicon substrate at the edges of the functional submodules; a second bridge structure mounted on the upper surface of the silicon substrate at the corners of the functional submodules; and a first molding layer located on the upper surface of the silicon substrate and covering the functional submodules.

Abstract: The present disclosure relates to a multi-channel digital control radio frequency switch chip and a method for applying same. The chip includes a digital control module, a storage module, and a radio frequency switch phase shift module. The digital control module is configured to read first code table information from the storage module or write second code table information into the storage module based on a digital signal input from the digital signal input port. The storage module is configured to store the first code table information and the second code table information. The radio frequency switch phase shift module is configured to control, based on the first code table information or the second code table information, an operation state of a radio frequency device connected to the plurality of radio frequency output ports.

Abstract: A motor includes: an air guide member having a plurality of first air channels to form an air guide area; a stator assembly having a plurality of second air channels to form a heat dissipation area; a housing having an receiving cavity to receive the stator assembly and air guide member; an air outlet member connected to the housing having an outlet area; a rotor rotatably arranged within the stator assembly; a preload support assembly having a first preload unit and a second preload unit respectively located on both sides of the stator assembly, the first preload unit and the second preload unit are both connected to the shaft to form opposing forces; and an impeller arranged on one side of the air guide member; the air guide area, the heat dissipation area and the outlet area together form an only air channel of the motor.

Abstract: Embodiments of this application provide communication methods, apparatuses, and readable storage media. One method includes: receiving, by a second device from a first device, a first priority for the second device in selecting a resource for sidelink transmission of the first device and a second priority indicating a priority of the PSSCH, wherein the first priority is carried in sidelink control information (SCI) on a physical sidelink shared channel (PSSCH) or a medium access control control element (MAC CE), and wherein the second priority is carried in SCI on a physical sidelink control channel (PSCCH), and selecting, by the second device based on the first priority, a resource for sidelink transmission of the first device.

Abstract: A dual-unit pack with two blister packs each having a cavity that is separate from one another and each containing a consumer product.

Abstract: Provided are shaft hole assembly method and system, and storage medium, shaft hole assembly method being applied to shaft hole assembly apparatus including assembly shaft. Method includes: performing plane calibration on assembly shaft within assembly task coordinate system, to obtain position of assembly plane. According to position of assembly plane, controlling assembly shaft to move in first direction of Z axis, to make contact with plane where X axis and Y axis are located; wherein first direction of Z axis is direction of assembly shaft closest to assembly plane. Controlling assembly shaft to traverse along spiral trajectory plane where X axis and Y axis are located, and detecting position of abrupt change to Z axis directional force, to obtain position of assembly hole; and according to position of assembly hole, controlling assembly shaft to move in first direction of Z axis to achieve insertion into hole.

Abstract: Described are systems and processes for providing safety guidance in generating images to prevent the inclusion of harmful content and/or concepts in the generated images. Statistical properties may be determined for the dimensions of a noise vector at each time step of a diffusion denoising process to determine dimensions that have high risks of manifesting restricted content and/or are loosely correlated to an input prompt, and targeting the determined dimensions in applying one or more safety guidance vectors to noise vectors at each time step of the diffusion denoising process based on the statistical properties. This facilitates the generation of images that maintains alignment of the generated output image with the input text prompt while effectively implementing safety guidance to avoid harmful content and/or concepts.

Abstract: The disclosure provides corrosion inhibitor compositions and methods for inhibiting corrosion of a metal surface in contact with an aqueous medium. A method includes adding a composition including a corrosion inhibitor to the aqueous medium. The corrosion inhibitor may include, for example, a benzotriazole compound and/or a derivative thereof, a halo-benzotriazole, an imidazole compound, a benzimidazole compound, a substituted imidazole compound, a substituted benzimidazole compound, a tetrazole compound, a pyrazole compound and/or a derivative thereof, a pyrimidine compound and/or a derivative thereof, and any combination thereof. An oxidizing agent may also be added to the aqueous medium. The aqueous medium may be used to cool various components in a direct to chip cooling process, for example.

Abstract: A cat litter box includes a base, a driver, and a drum assembly. The driver drives the drum assembly to rotate. The drum assembly includes a drum body and a partition assembly. The partition assembly includes a partition plate, a little guide plate, a litter sieve, and an emptying plate. The partition assembly divides an accommodating cavity into a first cavity and a second cavity. The first cavity is configured to accommodate a pet. A waste collecting compartment and a little collecting compartment are defined in the second cavity. The litter sieve is a litter inlet of the little collecting compartment. The little guide plate is movable relative to the partition plate to communicate the first cavity with the waste collecting compartment. The little guide plate is a door of an waste inlet of the waste collecting compartment. The emptying plate is configured to cover the litter sieve.

Abstract: An animation method includes: determining a plurality of polylines corresponding to a plurality of strip-shaped three-dimensional models, each strip-shaped three-dimensional model being bound to a specified three-dimensional model; determining, for a target polyline, in response to the specified three-dimensional model moving at an ith moment, force data respectively corresponding to a plurality of special effect particles on the target polyline at the ith moment; calculating, based on the force data, a speed change amount of each special effect particle from the ith moment to an (i+1)th moment; and calculating, based on movement speeds of the plurality of special effect particles on the plurality of polylines at the ith moment and speed change amounts of the plurality of special effect particles on the plurality of polylines from the ith moment to the (i+1)th moment, movement trajectories respectively corresponding to the plurality of special effect particles.