19results about How to "Keep properly" patented technology

The present application provides a holding mechanism that uses a Bernoulli pad to attract and hold a plate-shaped object without damaging the plate-shaped object. The holding mechanism has a Bernoulli pad that holds a plate-shaped object by the action of negative pressure generated by blowing air against the plate-shaped object, and has a hand portion to which the Bernoulli pad is attached, a sensor attached to the hand portion that detects when the plate-shaped object is held by the Bernoulli pad, a lateral movement restriction portion attached to the hand portion that restricts lateral movement of the plate-shaped object, a tube that connects an air source that supplies air to the Bernoulli pad to the Bernoulli pad, an adjustment valve attached to the tube that adjusts the flow rate of air supplied to the Bernoulli pad, and a control portion that controls the operation of the adjustment valve. The control portion gradually increases the flow rate of air supplied from the adjustment valve to the Bernoulli pad, and fixes the flow rate of air when the plate-shaped object is held by the Bernoulli pad by the action of negative pressure detected by the sensor.

This invention relates to the preparation and application of silicon-carbon anode materials, and discloses a silicon-carbon anode material modified with lithium phosphide nanoparticles, its preparation method, and a secondary battery. The material has a core-shell structure, with the core comprising porous carbon and lithium phosphide nanoparticles and silicon nanoparticles generated in situ within the micropores of the porous carbon; the shell comprises a composite coating layer composed of amorphous carbon and carbon nanotubes; silicon accounts for 45-65 wt% of the modified silicon-carbon anode material by mass, and the P / Si molar ratio of the lithium phosphide nanoparticles to the silicon nanoparticles is 2:98~30:70. A small amount of phosphorus source is first deposited in the porous carbon micropores, followed by lithiation treatment to convert the phosphorus in the porous carbon into lithium phosphide nanoparticles, then a second deposition of silicon nanoparticles, and finally overall carbon coating. This invention's modified silicon-carbon anode material improves the problem of rapid impedance increase in the low-charge range of silicon-carbon anode materials, significantly enhancing the user experience.

The invention discloses a medical image super-resolution reconstruction method and device, equipment, a medium and a product, and relates to the technical field of computer image processing, and the method comprises the steps: carrying out the preprocessing of the original data of brain nuclear magnetic resonance of a target object, and obtaining a high-resolution reference image and a low-resolution target image; respectively extracting multi-scale features of the target image and the reference image to obtain a multi-scale target feature map and a multi-scale reference feature map; based on the multi-scale target feature map and the multi-scale reference feature map, screening out key features and performing texture enhancement on the key features to obtain a multi-scale texture feature map; aligning and fusing the multi-scale texture feature map and the multi-scale target feature map to obtain a multi-scale fused feature map; and generating a high-resolution target image based on the multi-scale fusion feature map. According to the method, the core anatomical structure of the reconstructed image is clearer, the noise is lower, and the requirements for anatomical information of different scales in clinical diagnosis are met.

Crystal growth furnace equipment comprises a crystal growth crucible mechanism, a seed crystal preparation mechanism and a seed crystal setting mechanism. The crystal growth crucible mechanism comprises a crystal growth crucible assembly. And the crystal growth crucible assembly is provided with a crucible upper cover. The seed crystal preparation mechanism comprises a seed crystal pre-storage crucible and a pre-storage upper cover. Seed crystals are arranged on the bottom surface of the pre-storage upper cover. And the pre-storage upper cover can be matched with the seed crystal pre-storage crucible and is used for pre-sealing the seed crystal. The seed crystal setting mechanism comprises a rotating module. The rotating module is provided with two clamping assemblies used for taking and placing the crucible upper cover and the pre-stored upper cover correspondingly. The clamping assembly can be controlled to be matched so that the positions of the crucible upper cover and the pre-stored upper cover can be exchanged. According to the utility model, by virtue of the seed crystal setting mechanism, artificial pollution caused when the seed crystal is replaced into the crystal growth crucible mechanism can be avoided.

An end cap holder can include a base block and a holding block. The base block can be configured to provide a torque to an end cap that can be located at a nozzle of a gas cylinder for connecting the end cap with the nozzle / detaching the end cap from the nozzle. An angle correction groove can be formed in a first surface of the base block oriented toward the end cap. The holding block can be rotatably accommodated in the angle correction groove to hold the end cap. The holding block can selectively form a point contact with the base block to transmit the torque of the base block to the end cap. Accordingly, the holding block can accurately hold the end cap obliquely with respect to a vertical axis or a horizontal axis.

The invention belongs to the technical field of power distribution network operation and control, and particularly relates to a power distribution network topology switching path generation method and system based on loop matching, and the method comprises the steps: accurately obtaining a to-be-closed branch and a to-be-disconnected branch of a topology network through the structural difference between an initial topology structure and a target topology structure; the perfect matching between each to-be-closed branch and each to-be-disconnected branch is obtained by constructing the operation bipartite graph, and the complex topology constraint relationship between the branches can be converted into the matching and sorting problem in the graph theory, so that the computing power consumption in the topology switching path acquisition process can be obviously reduced; therefore, the generation efficiency of the topology switching path can be improved; through the timing constraint graph and topology connectivity verification, the non-executable topology switching paths can be screened out, so that the feasible topology switching paths can be accurately reserved. Therefore, the method and the system provided by the invention can efficiently and accurately generate the feasible topology switching path.

The application relates to the technical field of natural language processing, in particular to an NLP-based income and expenditure analysis report intelligent interaction method and system, which comprises the following steps: extracting a question keyword set of each user question sentence and an interaction keyword set of a corresponding interaction result sentence of the user question sentence; obtaining a close association evaluation value between the user question sentence and each adjacent question sentence of the user question sentence, and then obtaining a question and answer coherence degree of each user question sentence, calculating a semantic evolution degree of each user question sentence, and obtaining a key historical question sentence of the current user question sentence; using a BERT model to perform intent recognition and named entity recognition on the user question sentence, and then obtaining an income and expenditure analysis report. The application can improve the intelligent interaction efficiency of the income and expenditure analysis report.

This invention relates to the field of cloud databases and discloses a method for incremental synchronization of health data based on an intelligent cloud database. The method includes: collecting change data from multiple health data sources and generating candidate incremental records; matching the candidate incremental records with individual identifiers, event identifiers, data domain identifiers, and event time windows according to the health master index mapping rules to construct health event synchronization units; determining the target synchronization granularity based on the category of changed fields, and determining release conditions by combining the arrival status of the master record, the arrival status of the result record, the arrival status of the audit record, the arrival status of the signature record, and the authorization status; generating a structured incremental synchronization view for the corresponding target end and writing it to the intelligent cloud database when the release conditions are met; and performing compensation processing based on the synchronization unit identifier, the previous version identifier, and the synchronization level of the target end when supplementation, correction, revocation, authorization withdrawal, or health master index merging is detected.

This invention discloses a lightweight image super-resolution reconstruction method, system, and storage medium, relating to the field of image processing technology. Specifically, it includes: acquiring high-resolution and low-resolution images of the target as training sample pairs; constructing a lightweight image super-resolution reconstruction model comprising a shallow feature extraction module, a deep feature extraction module, a multi-layer feature fusion module, and an image reconstruction module. The shallow feature extraction module performs shallow processing on the low-resolution image; the deep feature extraction module consists of multiple cascaded enhanced separable residual feature refinement blocks, extracting shallow features to obtain multiple deep features; the multi-layer feature fusion module is used to obtain fused features; and the image reconstruction module is used to output the high-resolution image. The trained model is used to reconstruct the low-resolution image to be processed. This invention has a simple network structure and achieves accurate reconstruction of image texture and details using only a low number of parameters and computational cost.

This invention discloses a raw material pretreatment method for zone melting purification of high-purity aluminum, belonging to the field of non-ferrous metal refining technology. The pretreatment method includes alkaline washing, acid neutralization, cleaning and drying, and vacuum-protected loading steps. High-purity aluminum raw material is immersed in a 5-8% sodium hydroxide aqueous solution at room temperature for 5-30 seconds, and removed when bubbles begin to form on the substrate. The alkaline-washed aluminum material is then immersed in an 8-12% nitric acid or acetic acid aqueous solution for neutralization for 10-20 seconds. After acid neutralization, the aluminum material is cleaned and dried, then placed in a zone melting furnace. A vacuum is drawn, and inert protective gas is introduced to atmospheric pressure or a slightly positive pressure. This method thoroughly removes oxide scale from the surface and bonding surfaces of the aluminum material, effectively preventing secondary oxidation during post-treatment transfer and loading. It creates continuous and unobstructed molten pool propagation conditions for the zone melting process, ensuring the smooth progress of the purification process and the high quality of the final product. This method is particularly suitable for eliminating oxide scale on the bonding surfaces of segmented aluminum rods to ensure the smooth operation of the zone melting process.

The application discloses a manufacturing method of a single-layer circuit flexible circuit board for an intelligent vision module, takes a copper layer and respectively pastes a first dry film and a protective film, a window is made on the first dry film corresponding to a hollow circuit pattern, a tin plating layer is formed, a tin plating plate is formed; a single-sided copper-clad plate is taken, a circuit pattern is made corresponding to the tin layer area, a copper pattern of the copper-clad plate is formed, a first pattern plate is formed; the tin plating plate is correspondingly pressed with the first pattern plate to form a pressed plate; the protective film in the pressed plate is removed, a circuit pattern is made, a copper layer window pattern and a hollow circuit pattern are formed, and a second pattern plate is formed; the area corresponding to the copper pattern of the copper-clad plate of the insulating medium layer in the second pattern plate is removed, then tin removal processing is performed, after processing, the hollow circuit pattern forms a hollow circuit, and a flexible circuit board is formed; the tin layer provides protection for etching, creates a release condition for the copper pattern of the copper-clad plate, and lays a foundation for uncovering the insulating layer, and finally realizes efficient and high-precision processing of the flexible circuit board.

The application provides a resistance anode single photon camera based on a triangle-trapezoid dual-channel shaping algorithm, and aims at solving the technical problem that the trapezoidal shaping signal flat top part of the existing resistance anode single photon camera based on a trapezoidal filter shaping algorithm will appear signal superposition phenomenon, which causes the tail wave of the previous pulse to affect the amplitude of the next pulse, and even when the signal superposition is too much, the amplitude extraction and position signal calculation will be affected, and then the imaging resolution of the resistance anode single photon camera is reduced. The resistance anode single photon camera provided by the application digitizes the analog part in the traditional electronics, and introduces a triangle shaping algorithm on the basis of the traditional trapezoidal shaping algorithm, determines the pulse position through the triangle shaping algorithm, and then determines the pulse amplitude through the trapezoidal shaping algorithm, so that the effective pulse peak value under the pulse superposition condition can be more accurately identified, and the spatial resolution of the resistance anode single photon camera is greatly improved.

The invention discloses a power grid power transmission line fault early warning method. The method comprises the steps of obtaining historical environmental factor data and historical power grid operation state data; extracting features related to power transmission line faults and effective features corresponding to different types of power transmission line faults based on the historical environmental factor data and the historical power grid operation state data; constructing a fault probability prediction model according to the characteristics related to the power transmission line fault; constructing a fault type prediction model according to the effective features corresponding to the different types of power transmission line faults; acquiring current environmental factor data and power grid operation state data in real time, and inputting the data into the fault probability prediction model and the fault type prediction model to predict the fault probability and the fault type of the power transmission line; and when the fault occurrence probability exceeds a preset probability threshold, starting an early warning program. According to the design, the fault probability and the fault type of the line can be judged, so that corresponding prevention measures can be taken in time, and the reliability and the safety of a power grid are improved.

This invention proposes a morphological template-based conformal filtering method for 3D terrain reconstruction, belonging to the technical field of 3D terrain reconstruction. It solves the problem that current surface filtering methods cannot accurately identify and preserve the edges and corners of terrain features, resulting in the inability to accurately restore the true contours of features. First, a terrain representation map of the target feature is obtained. Then, multiple morphological templates are designed based on the regular shapes of the corners. These templates are used to detect the positions of the edges and corners to be processed in the terrain representation map. Next, it is determined whether the pixel code of the terrain representation map matches any one of the morphological templates. If it does, a conformal weighted filtering process is applied to the current pixel code; otherwise, a median filtering process is applied. Finally, the filtered terrain representation map is post-processed, and the 3D model of the target feature is reconstructed based on the processing results. This method achieves accurate identification and preservation of feature edges and corners, and accurate restoration of the true contours of features.

The application discloses an airport ground equipment high-quality data set collection method, comprising the following steps: S1, deploying a sensing module on the airport ground equipment, the sensing module is responsible for collecting multi-source original data and transmitting to an edge computing gateway; S2, the edge computing gateway receives the data collected by the sensing module, synchronizes time by using a GPS clock, processes the synchronized data, and uploads the data to the cloud; S3, a data collection module of the cloud receives the data uploaded by the edge computing gateway; S4, a data labeling module labels the received data; S5, a data storage and management module stores and manages the labeled data; the application has the advantages of collecting airport ground equipment high-quality data sets, solving the problem of insufficient airport ground equipment knowledge base data, providing a strong data foundation for the development of artificial intelligence in the field of airport ground equipment, and the like.

The invention discloses a large language model-oriented question and answer data generation method, which comprises the following steps of: obtaining a plurality of original technical documents in various document formats, and converting each original technical document into a structured document in a uniform format; extracting a multi-level document structure and field features from the structured document, and cleaning the structured document according to the multi-level document structure and field features to obtain a structured cleaned document; building a domain context for the structured cleaning document based on the domain knowledge base, and performing data enhancement on the structured cleaning document according to the domain context to obtain cleaning enhanced data; and performing data expansion based on the cleaning enhanced data by using a large language model, and generating question and answer data. On the basis, high-quality question and answer pairs with domain pertinence can be generated.

The utility model relates to a medical gauze wrapped cotton cushion dressing, and belongs to the technical field of medical dressings. The medical gauze wrapping cotton pad dressing comprises a cotton pad, the cotton pad comprises a cotton block and wrapping cotton gauze wrapping the cotton block, and the cotton pad further comprises a water-repellent film arranged between one surface of the cotton block and the wrapping cotton gauze; the medical gauze wrapped cotton pad dressing further comprises a gauze bandage used for fixing the cotton pad. According to the utility model, the water-repellent film is arranged between one surface of the cotton block and the cotton gauze, so that the surface of the dressing can be kept dry; and secondly, the dressing is compressed and plastically packaged, so that the problem of large occupied space during storage and transportation of the dressing is solved, and the vacuum plastic packaging also has a good antibacterial effect.

The application belongs to the technical field of active vibration isolation, and specifically discloses an active vibration isolation method and system based on prediction and adaptive control. The method comprises the following steps: performing multi-degree-of-freedom dynamic modeling on a vibration isolation system, taking the pose of a load as the system output, taking the control quantity of an actuator as the system input, and uniformly representing unknown dynamics caused by structural nonlinearity and disturbance as a nonlinear term; constructing an adaptive neural network state observer based on the dynamic model to estimate states that cannot be directly measured; collecting historical operation data of the vibration isolation system, constructing input time series and output time series after preprocessing the data, training a long short-term memory neural network prediction model, and generating a prediction signal representing future position information; designing an adaptive control law according to the state estimation result and the prediction signal, obtaining a feedback control quantity, superimposing the feedback control quantity with a feedforward control quantity obtained based on the prediction signal, and forming a control instruction for driving the actuator.

The utility model discloses a rice storage bin which comprises a bin body assembly, a stirring structure and a cooling structure. The bin body assembly comprises a bin body and a bin cover, the bin body is used for storing rice, the bin cover is movably connected to an opening of the bin body, and a feeding opening is formed in the bin cover; the stirring structure comprises a stirring shaft and stirring blades, one end of the stirring shaft is rotationally connected to the bin cover and extends towards the interior of the bin body, the stirring blades are arranged on the peripheral side of the stirring shaft, and the stirring shaft rotates to drive the stirring blades to rotate to stir rice; one end of the cooling structure is arranged on the bin cover, the other end of the cooling structure extends towards the interior of the bin body, and the cooling structure is arranged on the peripheral side of the stirring structure. Cooling liquid is conveyed into the bin body through the cooling structure and makes contact with the rice through the cooling pipe, heat exchange is conducted in the flowing process of the cooling liquid, the rice is turned over through the stirring structure, so that gaps between the rice are enlarged, and rapid cooling of a rice pile is achieved.