Abstract: A mounting assembly of a scooter seat, and a scooter. The mounting assembly comprises a mounting base (120), a supporting block (130), and a fastener; the mounting base (120) comprises a top plate (122) and two side plates (123) fixedly provided on two opposite sides of the top plate (122); mounting holes for fixing the scooter seat (900) are provided on the top plate (122); the two side plates (123) are clamped on the scooter body; the top plate (122) is provided on a footboard of the scooter body; the supporting block (130) is interposed between the scooter body and the side plates (123); the fastener is provided on the side plates (123) and tightly locks the supporting block (130) to enable the supporting block (130) to be fastened on the scooter body.

Abstract: Methods and systems are presented for assisting a user to identify and evaluate features for use in a machine learning model configured to perform a task. Based on graph data associated with a graph data structure, a user interface is provided on a device. Based on user inputs received via the user interface, a feature candidate for the machine learning model is determined. The feature candidate is associated with a particular way of traversing the graph data structure to obtain attribute values associated with one or more vertices and/or one or more edges in the graph data structure. Based on the attribute values, a value corresponding to the feature candidate can be calculated. The value can be used to evaluate the effectiveness of the feature candidate in performing the task. The feature candidate can then be incorporated into the machine learning model as one of the input features.

Abstract: The present disclosure relates to an audio playing method, apparatus and non-transitory computer-readable storage medium, and relates to the field of audio processing. The audio playing method includes: playing an audio clip of an audio content for a browsing user, in a case where the browsing user browses to the audio content in a feed; playing a complete audio of the audio content for the browsing user, in response to a first preset operation performed by the browsing user.

Abstract: The present disclosure relates to a push method, push apparatus of video and storage medium, and relates to the technical field of multimedia technologies. The push method of video includes: acquiring videos comprising video(s) with a photosensitive tag and video(s) without a photosensitive tag, wherein each video has a photosensitive tag if it is determined as a photosensitive video by a photosensitive video recognition model; and pushing video(s) that do not have a photosensitive tag among the videos to a browsing user in case that the browsing user is in a state of photosensitive video filtering.

Abstract: A pulse current processing apparatus includes a bidirectional tension and pulse current application apparatus, a real-time thin metal strip shape detection apparatus and a supporting base. In the apparatus, the tension is applied in the rolling direction and the transverse direction to effectively improve the strip shape flaws of the thin metal strip, and realize the rapid straightening of the thin metal strip; at the same time, the stress status of the thin metal strip is changed by applying the pulse current along the rolling direction or the transverse direction or applying different tensions in two directions; secondly, compared with the conventional heat-preservation heating and annealing apparatus, the pulse current can realize high-efficiency control of mechanical properties of the thin metal strip, and rapidly eliminate the internal stress; further, the strip shape is monitored by the laser ranging to ensure the strip shape consistency of the thin metal strip.

Abstract: Techniques are disclosed for storing an arranging data in a database. A method includes a computer system storing, in a database, data indicative of a graph data structure having a plurality of nodes connected by a plurality of edges. The method further includes the computer system determining that a number of edges connected to a first node satisfies a threshold number. In response to the determining, the computer system may store an index in an index row associated with the first node. The index identifies a first row having first and second ranges of values stored in first and second rows, respectively. The values in the first and second rows correspond to edges connected to the first node. The values in the first and second ranges are usable to indicate properties of corresponding ones of the plurality of edges.

Abstract: Embodiments of the present disclosure provide a data migration method and device, wherein the data migration method comprises: acquiring a migration request for a source database, creating a snapshot of to-be-migrated data in the source database and migrating the snapshot to a target database, reading a data migration log stored in a primary replica database of the source database and synchronizing the data migration log into the target database, and configuring a route for a target primary replica database of the target database according to routing rules of the primary replica database.

Abstract: The invention disclose a blockchain-based mining method, mining device, computer equipment and storage medium. The method comprises: acquiring block header information of a to-be-generated block published by a mining pool; generating a random term based on a public key of the mining pool, a public key of the miner, POW of the miner and physical interaction information broadcast by other miners in the mining pool; calculating a to-be-verified hash value based on the block header information and the random term; if the to-be-verified hash value satisfies block generation condition, transmitting the to-be-verified hash value to the mining pool, so the mining pool generates the to-be-generated block after the to-be-verified hash value passes verification. In this invention, utilizing physical interaction information among miners to generate the random terms, so the original random terms which need to be generated at high-speed randomly are replaced, avoiding wasting computing power and electric power.

Abstract: A magnetic particle imaging method based on a non-ideal Field Free Point (FFP), including the following steps: setting external magnetic field conditions of a non-ideal FFP and an ideal FFP, and obtaining a magnetization vector M of Superparamagnetic Iron Oxide Nanoparticles (SPIOs) and a Point Spread Function (PSF) in combination with a Langevin function; obtaining a signal feature on basis of a voltage signal of a detection coil of a Magnetic Particle Imaging (MPI) instrument; performing integral transformation on the voltage signal collected by the detection coil of the MPI instrument to obtain a voltage signal of an equivalent ideal FFP; averaging the moving speed of an FFP of the MPI instrument to obtain a moving speed of the equivalent ideal FFP; obtaining an equivalent Three-Dimensional concentration reconstruction image on basis of the voltage signal of the equivalent ideal FFP and a moving speed of the equivalent ideal FFP.

Abstract: Systems and methods that describe a graph database system with an online component and an offline component, are provided. Write events that modify a first graph in a real-time graph database included in the online component are received. Graph logs that include changes to the first graph in the real-time graph database caused by the write events are generated. The graph logs are transmitted to an offline component of the graph database system in a chronological order. A second graph in the offline component is modified using the graph logs. The first graph and the second graph are instantiated using a graph schema.

Abstract: The present invention discloses an ocean surface water continuous sampling device, the device comprises a support that ascends and descends along the stern, on the support a sampling pipe for drawing and sampling the surface water, and hydraulic tanks for driving the support up and down to send the sampling pipe to where the surface water is are provided, and a buffer mechanism for avoiding damage due to constant water resistance to the sampling pipe during sailing is provided on the support too. Configuration of the depth transducer, control unit and hydraulic tanks, promises surface water accurate and continuous collection during research vessel travelling; the buffer mechanism works effectively in avoiding radial and axial damage to the sampling pipe due to continuous water current resistance, which successfully relieves the resistance, and prolongs sampling pipe life; and automatic surface water collection is realized with the automatic control design.

Abstract: Techniques are disclosed for storing an arranging data in a database. A method includes a computer system storing, in a database, data indicative of a graph data structure having a plurality of nodes connected by a plurality of edges. The method further includes the computer system determining that a number of edges connected to a first node satisfies a threshold number. In response to the determining, the computer system may store an index in an index row associated with the first node. The index identifies a first row having first and second ranges of values stored in first and second rows, respectively. The values in the first and second rows correspond to edges connected to the first node. The values in the first and second ranges are usable to indicate properties of corresponding ones of the plurality of edges.

Abstract: A method and device for predicting a number of confirmed cases of an infectious disease, an apparatus, and a storage medium.

Abstract: A method for arranging an emergency rescue station includes obtaining coordinates of at least one rescue center, coordinates of at least one hospital, and coordinates of at least one object to be rescued within a preset range; determining the number of remaining beds in the at least one hospital, and determining a rescue number corresponding to the at least one object to be rescued; determining whether the rescue number is less than or equal to the number of remaining beds; and in response to the rescue number being less than or equal to the number of remaining beds, determining coordinates of a newly added rescue center based on the coordinates of the at least one rescue center, the coordinates of the at least one hospital, and the coordinates of the at least one object to be rescued.

Abstract: Provided are a method and apparatus for determining a rescue plan, a server, and a storage medium. The method includes obtaining target locations of one or more rescue targets and hospital locations of one or more hospitals, determining rescue-center locations of one or more rescue centers based on the target locations and the hospital locations, and determining a rescue plan for rescuing the one or more rescue targets based on the target locations, the hospital locations, and the rescue-center locations. This method achieves the effect of automatically generating a rescue plan in response to a disaster event.

Abstract: A mounting assembly of a scooter seat, and a scooter. The mounting assembly comprises a mounting base (120), a supporting block (130), and a fastener; the mounting base (120) comprises a top plate (122) and two side plates (123) fixedly provided on two opposite sides of the top plate (122); mounting holes for fixing the scooter seat (900) are provided on the top plate (122); the two side plates (123) are clamped on the scooter body; the top plate (122) is provided on a footboard of the scooter body; the supporting block (130) is interposed between the scooter body and the side plates (123); the fastener is provided on the side plates (123) and tightly locks the supporting block (130) to enable the supporting block (130) to be fastened on the scooter body.

Abstract: The present disclosure discloses a method, apparatus and system for assisting security inspection, and relates to the field of security inspection. The method includes: acquiring registration information of an inspected object; acquiring a standard scanned image corresponding to the registration information; displaying the standard scanned image in an AR manner to determine whether the inspected object is a suspicious object through comparing the standard scanned image with an actual scanned image, the actual scanned image comprising an image of the inspected object.

Abstract: Systems and methods that describe a graph database system with an online component and an offline component, are provided. Write events that modify a first graph in a real-time graph database included in the online component are received. Graph logs that include changes to the first graph in the real-time graph database caused by the write events are generated. The graph logs are transmitted to an offline component of the graph database system in a chronological order. A second graph in the offline component is modified using the graph logs. The first graph and the second graph are instantiated using a graph schema.

Abstract: The present invention discloses an ocean surface water continuous sampling device, the device comprises a support that ascends and descends along the stern, on the support a sampling pipe for drawing and sampling the surface water, and hydraulic tanks for driving the support up and down to send the sampling pipe to where the surface water is are provided, and a buffer mechanism for avoiding damage due to constant water resistance to the sampling pipe during sailing is provided on the support too. Configuration of the depth transducer, control unit and hydraulic tanks, promises surface water accurate and continuous collection during research vessel travelling; the buffer mechanism works effectively in avoiding radial and axial damage to the sampling pipe due to continuous water current resistance, which successfully relieves the resistance, and prolongs sampling pipe life; and automatic surface water collection is realized with the automatic control design.