14results about How to "Solve the damage" patented technology

The invention discloses a method for treating the inner surface of a stainless steel gas pipe assembly for a semiconductor. The method for treating the inner surface of the stainless steel gas pipe assembly for the semiconductor comprises the following steps that firstly, the inner surface of the stainless steel gas pipe assembly is subjected to basic pretreatment, so that the surface roughness of the stainless steel gas pipe assembly reaches the precision capable of being subjected to finish machining; secondly, multi-stage mechanical polishing is carried out through grinding materials with the granularity gradually reduced, so that the roughness of the inner surface of the stainless steel gas pipe assembly reaches the target precision; and thirdly, the inner surface of the stainless steel gas pipe assembly is treated through electrolytic polishing, and a high-precision passive film is generated on the inner surface of the stainless steel gas pipe assembly. In this way, the smoothness and corrosion resistance of the inner surface of the stainless steel gas pipe assembly can be effectively improved, the overall service life of the pipeline is prolonged, the influence of the pipeline on high-purity gas is remarkably reduced, and the strict requirement of the semiconductor tip technology manufacturing procedure for gas purity is met.

The application discloses a kind of knowledge embedding and retrieval method and system of multi-modal PDF document, specifically relates to knowledge embedding and retrieval field, the present application uses multi-modal big model identification picture, table and other non-text elements in PDF, generates its position coordinate, converts picture into structured literal description and stores source URL;Second, the original text, picture description and URL are integrated into Markdown format, then, adopt the strategy of gradual blocking: each picture information is individually used as text block, and the remaining pure text is blocked according to character length;Subsequently, all text blocks are vector embedded, and the type is stored as metadata into vector database;Finally, in the retrieval stage, relevant text blocks are returned based on vector similarity;In the generation stage, single mode or multi-modal model generates accurate answer using text content and picture URL.

This utility model relates to a manhole structure, belonging to the field of pipeline construction technology. Specifically, it is a structure for adding a tee manhole above a large-diameter pipeline. It includes cast-in-place piles on both sides of the existing pipeline, with a bearing plate fixedly connected to the upper surface of the piles. It also includes a manhole body mounted on the bearing plate, with a new pipeline opening on one side and an inspection port on the top. A pre-reserved opening is formed through the upper surface of the bearing plate, with an opening side beam on the inner wall of the opening, which contacts the existing pipeline. This utility model retains the manhole form while avoiding the additional structural load falling on the original pipeline, reducing its impact. It solves the problem that existing traditional manhole forms cannot meet the bearing capacity of the manhole and are prone to damaging the original pipeline.

The application discloses a small-opening-face vertical digging shovel and a use method thereof. The device comprises a mounting piece, a horizontal turning mechanism arranged on the mounting piece, and a shovel body arranged below the horizontal turning mechanism. The mounting piece comprises a connecting plate, and a connecting hole is arranged on the connecting plate. The horizontal turning mechanism comprises a mounting seat at the bottom end of the connecting plate, a hydraulic motor on the mounting seat, and a rotating base arranged at the output end of the hydraulic motor. The shovel body comprises a top plate, an arc-shaped guard plate arranged on the top plate, a vertical soil cutting plate arranged at one end of the top plate, a soil clamping plate arranged at the other end, a side plate arranged on the soil clamping plate, and a hydraulic oil cylinder arranged between the soil clamping plate and the top plate. The vertical soil cutting and vertical soil taking are realized. The length, width and height dimensions of the excavated foundation pit are ensured to be consistent with the rectangular foundation, the side wall of the foundation pit directly serves as a foundation pouring formwork, and the foundation construction does not need to be supported and backfilled.

The invention provides a preparation method of heat insulation silica gel foam, and belongs to the technical field of organic silicon foam. According to the raw material formula, the silica gel foam is prepared from two components in equal mass, by adding the modified aerogel composite material, the thermal conductivity of traditional silica gel foam is further reduced, good heat insulation and flame retardant effects are achieved, the flame retardant grade can reach V0, and therefore the silica gel foam has good application prospects as a heat insulation device in a new energy battery pack.

The invention relates to the technical field of building pollutant detection, in particular to a straight-flow wind tunnel device for gas diffusion simulation, which comprises a support frame, a straight-flow wind tunnel integration pipe transversely fixed at the top end of the support frame, and a negative pressure fan fixed at one end of the straight-flow wind tunnel integration pipe. The turbulence intensity can be dynamically adjusted when the straight-flow wind tunnel device performs gas pollutant diffusion simulation, the turbulence generation structure does not need to be disassembled and replaced, the aperture size of the airflow channel is directly changed through assembly linkage, turbulence requirements in different test scenes are flexibly met, and the test efficiency is improved. The problem that a flow field in a pipeline is damaged due to disassembly of a traditional fixing structure is effectively avoided, the switching time of a multi-turbulence scene test is greatly shortened, the test efficiency is remarkably improved, meanwhile, the flow regulation and control assembly is arranged in a matched mode, the supply amount of a humidification medium can be synchronously adjusted, and the airflow humidity in different turbulence states can be balanced.

The invention belongs to the technical field of medical image processing, computer vision and computer-aided diagnosis, discloses a double-decoder blood vessel segmentation method and system capable of keeping topological connectivity of blood vessels, and aims at explicitly modeling the topological connectivity of the blood vessels on the basis of a double-decoder network structure. Firstly, data enhancement and preprocessing are carried out on an original X-ray angiography image, and then the original X-ray angiography image is input into a convolutional neural network to extract multi-scale features; and the network generates a high-precision blood vessel segmentation prediction map by fusing local details and global context information. By introducing a topology perception mechanism and a feature enhancement strategy, the accuracy and structure connectivity of a blood vessel segmentation result are effectively improved, and the method is particularly suitable for X-ray blood vessel image analysis in complex clinical scenes such as low contrast and high noise.

This application relates to the field of milk tea preparation technology, and in particular to a compound dried fruit beverage and its preparation method. Using specialty dried fruits such as jujubes, hawthorn berries, large apricots, and small white apricots as core ingredients, it combines medicinal and edible auxiliary materials and natural milk base. Through low-temperature slow extraction for aroma enhancement, gradient cooking to lock in nutrients, and microencapsulation to protect activity, it solves the technical problems of traditional dried fruit milk tea, such as bland fruit flavor, easy nutrient loss, layered taste, and cloying sweetness. The milk tea of ​​this invention has a high degree of integration of fruit and milk aromas, a smooth and mellow taste, and also possesses health benefits such as strengthening the spleen and aiding digestion, replenishing qi and nourishing blood. It contains no artificial flavors or preservatives, and has a shelf life of up to 90 days at room temperature. Experimental verification shows that its total phenol content is ≥6.8mg / g, total flavonoid content is ≥3.2mg / g, antioxidant capacity is ≥75%, and sensory score is above 92 points, indicating significant industrialization potential.

The present application relates to the technical field of three-dimensional point cloud data processing and graph convolutional neural network, and particularly to a multi-domain adaptive graph convolution method and device based on visual selectivity. The present application takes the primate visual selectivity theory as the core basis, first constructs a multi-scale visual hypersphere neighborhood space, adaptively completes the polarization gridding of the neighborhood through clustering analysis, then designs a visual selectivity adaptive graph convolution operator to complete single-neighborhood feature extraction, constructs a deep network based on the visual hierarchical serial processing logic to realize high-level feature abstraction, and finally completes the point cloud classification task through multi-domain feature fusion. The present application solves the problems of information loss, topological structure damage, insufficient feature expression capability, and poor multi-scale feature adaptability in the existing 3D point cloud processing technology, and can be widely applied to 3D point cloud processing scenes in the fields of autonomous driving, augmented reality, robot perception, etc.

The utility model discloses a buffer beam mounted in a container, and belongs to the technical field of buffer beams of containers. Comprising beams; the bolts are arranged on the two sides of the cross beam in a threaded mode, and pressing blocks are rotationally arranged on the sides, close to the inner wall of the container, of the bolts; the corrugated board is vertically arranged on one side of the inner wall of the container and matched with corrugations of the inner wall of the container; and the buffer assembly is arranged on the outer side of the cross beam. The problems that in the prior art, the inner wall of a container is generally arranged to be in a corrugated shape, a buffer beam is installed through a first connecting structure and a second connecting structure, connection with the corrugated inner wall of the container is inconvenient, the second connecting structure needs to be arranged on the inner wall of the container, and a container compartment is damaged are effectively solved.

This invention relates to the field of marine technology and discloses a azimuth thruster fairing cover structure and its installation method. The structure includes an upper cover (12), a lower cover (2), and a cover plate (1). The upper cylinder (7) is connected to the lower cover (2) via the upper cover (12). A cover plate (1) is provided at the bottom of the lower cover (2), and a circular hole (11) is formed on the cover plate (1). A gap exists between the circular hole (11) and the lower cylinder (6). The bottom of the lower cover (2) has a plane boundary (10) and a folded boundary (9). The cover plate (1) has a cover plate boundary (8). A gap exists between the cover plate boundary (8) and the plane boundary (10) and the folded boundary (9). The plane boundary (10), the folded boundary (9), and the cover plate boundary (8) are connected by connecting pads. This invention ensures that the paint inside the fairing cavity is not damaged during cover plate installation and facilitates subsequent disassembly and maintenance.

The application discloses a kind of navigation light emitting port contaminant kind self-adapting cluster identification method, comprising the following steps: obtaining the contaminant image of the navigation light emitting port to be identified;Based on the contaminant image, the number of clusters is determined using self-adapting cluster algorithm;Based on at least two image features for distinguishing the contaminant species of navigation light emitting port, the initial cluster center is screened;Based on the number of clusters, the initial species is assigned to each contaminant pixel point in the contaminant image;The Euclidean distance of each contaminant pixel point in the contaminant image to the initial cluster center is calculated in turn;Judge whether convergence, otherwise, change the species of each contaminant pixel point in the contaminant image;If convergence, output cluster result;Based on the cluster result, the species of the contaminant of the navigation light emitting port to be identified is judged;The application realizes clustering by the obtained contaminant image feature data of the surface of navigation light emitting port, and achieves the effect of accurate identification of contaminant species.

This application relates to the field of electric vehicle charging technology, and provides a leakage current protection circuit, a charging module, and a method. The leakage current protection circuit is applied to a charging device and includes a leakage current detection unit, a control unit, a first switching unit, and a second switching unit. The first switching unit is connected in series between the input terminal of the charging device and the power supply. The second switching unit is connected in series between the output terminal of the charging device and the device to be charged. The leakage current detection unit is installed on the power supply line between the input terminal of the charging device and the power supply, or installed between the output terminal of the charging device and the second switching unit. The control unit is electrically connected to the first switching unit, the second switching unit, and the leakage current detection unit. The leakage current protection circuit provided by this application can solve the problem of leakage current during the use of AC slow charging piles causing damage to AC slow charging piles and new energy vehicles.