Abstract: The present disclosure relates to a method, a device, and a computer program product for upgrading a virtual storage system. The method for upgrading the virtual storage system is applied to a serverless platform, and includes receiving an upgrading instruction for the virtual storage system. The method further includes determining an upgrading type corresponding to the upgrading instruction and a preset execution file matched with the upgrading type, the preset execution file being pre-deployed in the serverless platform. The method further includes upgrading the virtual storage system by running the preset execution file in the serverless platform. In this way, a preset execution function is run in the serverless platform to upgrade the virtual storage system, which can save resource costs and operational costs for users. In addition, because the task processing efficiency of the serverless platform is high, the upgrading efficiency of the virtual storage system can further be improved.

Abstract: A method for using a laser device includes: dividing laser devices into a first laser group and a second laser group, and turning on the laser device in the first laser group and processing the pole sheet; when any temperature value of a galvanometer and a field lens of the laser device in the first laser group reaches a set value, turning off the laser device in the first laser group, and turning on the laser device in the second laser group to continue processing the pole sheet; when any temperature value of the galvanometer and field lens of the laser device in the second laser group reaches the set value, turning off the laser device in the second laser group, and turning on the laser device in the first laser group to continue processing the pole sheet.

Abstract: A method for re-recognizing an object image is provided based on multi-feature information capture and correlation analysis weights of an input feature map by using a convolutional layer with a spatial attention mechanism and a channel attention mechanism, causing channel and spatial information to effectively combined, which not only focus on an important feature and suppress an unnecessary feature, but also improve a representation of a feature. A multi-head attention mechanism is used to process a feature after an image is divided into blocks to capture abundant feature information and determine a correlation between features to improve performance and efficiency of object image retrieval. The convolutional layer with the channel attention mechanism and the spatial attention mechanism is combined with a transformer having the multi-head attention mechanism to focus on globally important features and capture fine-grained features, thereby improving performance of re-recognition.

Abstract: Disclosed are a peony PoWOX4 gene and applications of a coded protein thereof, belonging to the field of biotechnology. According to the present disclosure, Arabidopsis thaliana is taken as a model plant, and the peony PoWOX4 gene is transformed into Arabidopsis thaliana to promote the early bolting, flowering and vegetative growth of Arabidopsis thaliana.

Abstract: A ductile material, a method for manufacturing a ductile member, and an anti-collision device for bridge piers, wherein the ductile material includes specific components in parts by mass as follows: 50-62 parts of thermoplastic polyurethane, 11-33 parts of neodymium-iron-boron, 12-24 parts of nickel-titanium alloy, 2-3 parts of metal magnetic powder, and 1-2 parts of polypropylene or polyethylene or polylactic acid or polyetheretherketone. The use of the ductile material, the method for manufacturing a ductile member, and the anti-collision device for bridge piers facilitates navigation.

Abstract: An active clamp flyback circuit includes: a clamp capacitor that is connected to a primary-side winding of a transformer and that is configured to absorb leakage inductance energy of the primary-side winding; an auxiliary switching transistor that is configured to control the clamp capacitor to perform reverse excitation power charging on the primary-side winding by using the auxiliary switching transistor; a first diode, where the first diode is connected in series between the clamp capacitor and the auxiliary switching transistor; and a second diode, where the second diode is connected between the first diode and the clamp capacitor, and the second diode is connected in series between the clamp capacitor and a primary-side auxiliary winding.

Abstract: Disclosed is a test method for measuring a force situation of a tree-shaped spatial node, and the test method is realized by a reaction frame device. The reaction frame device includes a raft foundation and a reaction frame fixedly mounted on the raft foundation, a cavity is formed inside the reaction frame to accommodate a tree-shaped spatial node; a main pipe of the tree-shaped spatial node is plumb-fastened to the raft foundation, and a force measurement assembly is arranged in an upper space of the cavity, which can simultaneously apply force of a set value to each branch pipe in the tree-shaped spatial node and detect a combined force applied to the tree-shaped spatial node. The method can simultaneously and accurately apply static force to each branch pipe, thereby effectively predicting the overall working condition of the tree-shaped spatial node.

Abstract: The present disclosure relates to systems and methods for block division and encoding in video processing. A method may include obtaining a block to be predicted in an image frame. The method may also include determining, based on a plurality of division modes of the block, a target division mode of the block. The plurality of division modes may include an equal division mode that is configured to divide the block into multiple sub-blocks with a same size. The method may further include dividing, based on the target division mode, the block into a plurality of sub-blocks, and encoding the block based on the plurality of sub-blocks.

Abstract: Provided is a distributed addressing and fast routing method and a system thereof, which belongs to the technical field of satellite communication. First, a satellite relative motion model is established, thereafter, an appropriate reference frame satellite is selected to deploy a controller based on the established satellite relative motion model, subsequently, satellite addresses have been allocated based on the deployed controller, and finally a routing table is synchronously established based on the allocated satellite addresses. A brand-new packet communication protocol of the present disclosure is more flexible in setting the structure of each field. Positioning the controller satellite with betweenness centrality ensures the short-distance communication between the controller and the satellites. The distributed addressing method reduces the frequent communication between satellites and improves the address allocation speed.

Abstract: A cable detection robot and a working method thereof, wherein the cable detection robot includes: a first main body, a second main body, and a rotatable mechanism. The first main body and the second main body each include a support, a driving apparatus, and a holding apparatus; the driving apparatus includes a first wheel and a driving motor, to drive the first wheel to move along a cable through the driving motor; the holding apparatus is symmetrically arranged on two sides of the support, each side includes a first servo motor, connecting to a supporting wheel group; the supporting wheel group is perpendicular to a surface of the cable, the holding apparatus holds or is separated from the cable through rotation of the first servo motor, and relative positions of the first main body and the second main body are adjusted through the rotatable mechanism to implement obstacle surmounting.

Abstract: Disclosed are a hydroxyl-terminated polybutadiene-based polyurethane (HTPB-PU)-modified asphalt and a preparation method thereof. In the disclosure, the HTPB-PU-modified asphalt includes the following components in parts by weight: 90 parts to 97 parts of a base asphalt and 3 parts to 10 parts of HTPB-PU, where the HTPB-PU is prepared from raw materials including an isocyanate and a polyol, and the polyol includes hydroxyl-terminated polybutadiene (HTPB) with a weight percentage of not less than 80%.

Abstract: An RGB-T (Thermal) multispectral pedestrian detection method based on a target aware fusion strategy, which aims to accurately determine the position of pedestrians from a pair of RGB and thermal infrared images. Given a pair of RGB and thermal infrared image to be detected, this method firstly extracts multispectral features from the RGB and thermal infrared images; then the extracted multispectral features are fused by using a target aware fusion strategy; finally, the fused features are sent to a detection head for pedestrian detection, and the pedestrian position box and confidence are output. The method can effectively fuse the deep features of multispectral images, enhance the feature expression of pedestrian areas and suppress irrelevant background noise features during the fusion process, and can realize accurate pedestrian detection.

Abstract: A power supply apparatus includes a first power module, a second power module, an energy storage module, and a controller. An output terminal of the first power module is connected in parallel to an output terminal of the second power module, which is then connected to a load, and load dynamic response performance of the second power module is better than load dynamic response performance of the first power module. The energy storage module is connected to the output terminal of the first power module and connected between a midpoint of the load and a reference ground. The energy storage module is configured to store electric energy and supply power to the load. The controller is configured to, in response to the load being in a dynamic change status, control the second power module to supply power to the energy storage module.

Abstract: A positive electrode including a first positive electrode active material and a second positive electrode active material, where the first positive electrode active material is sulfurized polyacrylonitrile with a sulfur percentage of 45 wt % to 60 wt %, and the second positive electrode active material is sulfurized polyacrylonitrile with a sulfur percentage of 30 wt % to 40 wt %. The positive electrode increases energy density and energy density retention rate of the electrochemical apparatus.

Abstract: In a power factor correction PFC circuit control method and a PFC circuit, a control module determines that an alternating current on a single-phase input/output terminal is in a positive half cycle. The control module turns on or turns off switching transistors on the first bridge arm and the second bridge arm, to boost a first voltage at a first parallel connection point. The control module turns on a switching transistor on the third bridge arm when determining that the first voltage is equal to a voltage of a positive bus of the direct current module. A switching loss of the PFC circuit can be effectively reduced, and performance of the PFC circuit can be improved.

Abstract: The present disclosure provides systems and methods for image filtering. The method may include obtaining an initial image block from a reconstructed image; determining at least one candidate image block by performing a filtering operation on the initial image block using at least one trained machine learning model; and determining a target image block based on the at least one candidate image block.

Abstract: Systems, apparatuses, and methods are described for adjusted exposure threshold values. Each user may be associated with one or more of a plurality of exposure threshold values, for example, a frequency cap value, that may be a cap (e.g., threshold) on the number of times a repeat advertisement content may be output to a user. Exposure threshold values may be modified based on one or more viewing statistics, for example, information about one or more interactions of the user associated with one or more outputs of repeat advertisement content, environment information, and/or one or more advertisement characteristics.

Abstract: Disclosed are a hydroxyl-terminated polybutadiene-based polyurethane (HTPB-PU)-modified asphalt and a preparation method thereof. In the disclosure, the HTPB-PU-modified asphalt includes the following components in parts by weight: 90 parts to 97 parts of a base asphalt and 3 parts to 10 parts of HTPB-PU, where the HTPB-PU is prepared from raw materials including an isocyanate and a polyol, and the polyol includes hydroxyl-terminated polybutadiene (HTPB) with a weight percentage of not less than 80%.

Abstract: The present disclosure provides systems and methods for image filtering. The method may include obtaining an initial image block from a reconstructed image; determining at least one candidate image block by performing a filtering operation on the initial image block using at least one trained machine learning model; and determining a target image block based on the at least one candidate image block.