Abstract: The present disclosure relates to the technical field of display screen, and provides a display module set and a display screen. The display module set comprises a cabinet frame and a plurality of display modules. The cabinet frame comprises a power box and a plurality of sub-frames located on the left and right sides of the power box. The sub-frames on each side are arranged sequentially in a vertical direction. The plurality of the display modules corresponds to a plurality of the sub-frames on a one-to-one basis. A drive circuit and mounting members of the display module are both provided on a left side and/or right side region. A middle region of the display module is uniformly distributed with a hole structure for sound transmission. The display module is mounted on a corresponding sub-frame via the mounting members of the left side and/or right side region.

Abstract: A sample mounting device for direct tensile test of rock mass is provided, which includes a first positioning stage, a second positioning stage, a first support piece, a second support piece, and a screw drive mechanism. The second positioning stage is arranged above the first positioning stage and capable of moving up and down, and cushion blocks for gluing with the rock mass are coaxially and detachably arranged at opposite ends of the first positioning stage and the second positioning stage, and a rock mass mounting area is formed between the two cushion blocks. A screw of the screw drive mechanism includes a first thread segment and a second thread segment with opposite thread directions. The first support piece is connected with the first thread segment through a nut seat, and the second support piece is connected with the second thread segment through a nut seat.

Abstract: An anomaly labeled-assistant detection system and a method thereof are provided. The anomaly labeled-assistant detection system includes a computing apparatus and a storage apparatus. The computing apparatus includes an anomaly labeled detection model, where the computing apparatus detects a plurality of pieces of labeled image data with a labeled category through the anomaly labeled detection model, the anomaly labeled detection model respectively generates an inference category corresponding to each piece of labeled image data, and the computing apparatus compares the labeled category and the inference category according to each piece of labeled image data, and automatically lists the labeled image data as anomaly labeled data when the labeled category of the labeled image data is different from the inference category. The storage apparatus is electrically connected to the computing apparatus, to store the labeled image data.

Abstract: An example method of estimating an arc duration in a circuit breaker includes receiving a first measurement corresponding to a low-frequency electric field emitted from a vacuum circuit breaker during an interruption or circuit break operation and a second measurement corresponding to a low-frequency magnetic field, vibration, or acoustic emitted by the vacuum circuit breaker during operation, aligning the first measurement and the second measurement in time, wherein the first measurement is calibrated according to a first physical constant and wherein the second measurement is calibrated according to a second physical constant; and determining, by a sensor-fusion algorithm or a trained AI model, an estimated duration value of an arc duration using the time-aligned first measurement and second measurement, wherein the arc duration corresponds to a first time corresponding to a separation of contacts of the vacuum circuit breaker and a second time corresponding to arc extinction.

Abstract: The disclosed computer-implemented method may include (1) sampling an output signal of an amplifier that amplifies a voltage difference between two electrodes, (2) calculating, based on a power spectral density of the output signal, a noise power of the output signal over a predetermined frequency band, (3) estimating an interface impedance of at least one of the two electrodes based on the noise power and a predetermined intrinsic current noise of the amplifier, and (4) performing an operation based at least in part on the estimated interface impedance. Various other methods, systems, and devices are also disclosed.

Abstract: A full slag covering, spatter-free flux-cored welding wire, relating to the technical field of welding material formulations, which includes a flux core and a metal sheath, wherein the flux core is a slag system based on a neutral slag of calcium oxide-titanium dioxide-aluminum oxide; and molten drops are prevented from flying out to form spatters under the action of liquid slag in a welding process. The flux core is composed of rutile, fluoride, titanate, aluminum powder, manganese powder, chromium powder, molybdenum powder and iron powder, and mass percentages of respective components are: 15%-35% rutile, 15%-35% fluoride, 3%-7% calcium titanate, 5%-10% aluminum powder, 10%-20% manganese powder, 3%-5% chromium powder, 3%-15% molybdenum powder, and a remainder is iron powder or nickel powder. The present welding wire solves the technical problems of weld spatter and poor stability in the traditional welding process.

Abstract: A battery assembly includes a battery pack; a battery pack seat for mounting the battery pack, the battery pack seat having a base for creating an electrical connection with the battery pack; and a sealing member arranged between the battery pack and the base. The base has a first terminal, and the battery pack has a second terminal matched with the first terminal. One of the first terminal and the second terminal penetrates the sealing member for creating the electrical connection via the other one of the first terminal and the second terminal. A related electrically started gasoline engine is also disclosed.

Abstract: Methods and systems for reducing electromagnetic interference in analog circuit of a control device for an augmented reality (AR) or virtual reality (VR) system are described. An analog circuit associated with the control device may include at least one amplifier and an analog-to-digital converter coupled to an amplifier by one or more electrical conductors. Electromagnetic interference induced in the one or more electrical conductors by an external AC magnetic field may be reduced using at least one component of the control device configured to reduce the electromagnetic interference.

Abstract: This application provides a laminated display module and an electronic device, including a cover layer, a thin film packaging layer, a display layer, and a support membrane layer that are sequentially covered through lamination from top to bottom. The cover layer includes a smooth region and two curved surface regions along a longitudinal direction. The two curved surface regions are respectively located on two sides of the smooth region, where each curved surface region includes one bending region, and each bending region is projected onto the support membrane layer to form a projection region. The support membrane layer includes a main support region and two side support regions along a longitudinal direction, and a gap is provided between either of the side support regions and the main support region.

Abstract: Provided are a support plate, a display screen, and an electronic device. The support plate includes a first board and a second board. The first board and the second board are arranged back to back, and the first board is configured to be attached to a display panel. The support plate includes a bending area, and the support plate is configured to bend in the bending area along a preset axial line L. First strip-shaped slots are formed on the first board, and second strip-shaped slots distributed in an array at intervals along the axial line L are formed on the second board. The first strip-shaped slots are continuously provided along the axial line L and extend through the first board to form a unified edge structure.

Abstract: A support assembly includes a support plate, a first adhesive layer, a substrate, and a second adhesive layer. The support plate, the first adhesive layer, the substrate, and the second adhesive layer are stacked from the bottom up. The substrate is attached to the support plate by using the first adhesive layer, and the support assembly is configured to attach to another structure by using the second adhesive layer, thereby forming a display module of a foldable-screen device. The support assembly includes a bendable region; the support assembly is configured to bend in the bendable region; the support assembly is provided with a plurality of first holes in the bendable region; and the plurality of first holes penetrate through at least the support plate and the substrate in a stacking direction of the support plate, the first adhesive layer, the substrate, and the second adhesive layer.

Abstract: Disclosed are an intelligent replenishment monitoring system and method. The intelligent replenishment monitoring system includes at least one image capture device and a computing device. The image capture device captures at least one shelf to generate a shelf image. The computing device is in signal connection to the image capture device to receive the shelf image. The computing device performs first-stage identification on the shelf image according to a commodity region positioning model, to identify a commodity region image from the shelf image. The computing device performs second-stage identification on the commodity region image according to the at least one commodity replenishment model, to obtain commodity information corresponding to the commodity region image, and generates replenishment information according to the commodity information, so that a staff member replenishes the commodities according to the replenishment information.

Abstract: The disclosure relates to a value transfer method, apparatus, and system, applied to the field of Internet technologies. The value transfer method includes: in response to receiving a value transfer request of a transaction initiator, generating an incomplete data set corresponding to each of transaction participants on each of transaction nodes, the incomplete data set including an encrypted account value of a corresponding transaction participant before and after a value transfer; merging incomplete data sets corresponding to the transaction participants to obtain a complete data set; requesting a third-party node to perform integrity verification on the complete data set, to obtain an account data set endorsed by a third party; and performing, based on a consensus reached on the account data set between blockchain nodes in a blockchain network, local ledger writing on the blockchain nodes according to the account data set on which the consensus is reached.

Abstract: A payment method by a processing server to process payment that is independently performed between a user equipment and a payment channel server is provided. The method includes: generating, by the processing server, a payment order bound to a merchant order generated by a merchant device by determining a corresponding item ID, of a service and/or a product for purchase, that is registered with the payment channel server, the merchant order corresponding to the service and/or the product provided by the merchant device; obtaining, by the processing server, a payment voucher corresponding to the payment order; matching, by the processing server, based on the payment voucher, the merchant order bound to the payment order; and transmitting, by the processing server to the merchant device, based on the matched merchant order, a service/product providing notification for providing the service and/or the product to the user equipment.

Abstract: According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: determine a first resource block per symbol (RBSYM) quantity of a first portion of a frequency-time resource grid; determine a second RBSYM quantity of a second portion of the frequency-time resource grid, the second portion being associated a different Orthogonal Frequency-Division Multiplexing, OFDM, numerology than the first portion; and perform at least one action based at least in part on the first RBSYM quantity and the second RBSYM quantity.

Abstract: A walking mechanism for driving a machine body includes a walking wheel group having a plurality of walking wheels attached to the machine body, with two front and two rear wheels relative to a traveling direction. The machine body has two sides with a pair of one of the front wheels and a one of the rear wheels being respectively located on each of the sides and driven to rotate synchronously. Each walking wheel includes an auto tire casing with a tread outer side having a tread pattern distributed along a circumferential direction of the auto tire casing. The tread pattern is configured as a plurality of tread ribs with a respective tread groove formed between each adjacent pair of the tread ribs, the tread pattern radiating outward from an axial center of the walking wheel. A related robot and self-walking mower are also disclosed.