9 results about "Single vessel" patented technology

The invention discloses a floating type rotary installation tool and method for a steel arch rib shore side assembly single ship. The mounting tool comprises a first rotating disc, a second rotating disc and a first connecting rod, the splicing bracket is used for splicing the arch rib sections on the river bank in a framing manner to obtain main sections of the steel arch rib; the temporary steel box is arranged on a river bank and used for supporting one end, far away from the first skewback, of the main section of the steel arch rib; the moving mechanism is located at the bottom of the temporary steel box and used for driving the end, where the temporary steel box is located, of the main section of the steel arch rib to move into the river from the river bank; the power mechanism is used for driving the end, where the temporary steel box is located, of the main section of the steel arch rib to rotate around the first rotating disc to the position where the second arch seat is located after the main section of the steel arch rib moves into the river from the river bank. According to the installation tool, the construction safety and the construction efficiency can be improved, and the influences of construction in a river and navigation in the river are reduced.

The invention provides a three-dimensional vascular structure recovery device and method fusing prior information, and relates to the technical field of biomedical image processing. Comprising a data acquisition module, a data extraction module and a complex blood vessel missing structure recovery module. The method comprises the following steps: firstly, acquiring SR-CT data of a blood vessel network, and then carrying out image segmentation on the blood vessel network to obtain a binary mask; decomposing the complex blood vessel into a series of single blood vessel images according to an image segmentation result of the blood vessel network; according to a series of single blood vessel images obtained through decomposition, selecting a single blood vessel image containing a missing structure through a connected domain analysis method; a spatial transformation network based on shape prior is constructed, and a missing structure of a single blood vessel is recovered; and finally, recombining the single blood vessel image, namely the blood vessel image without the missing structure and the blood vessel image with the restored missing structure to generate a complete blood vessel network, thereby realizing missing structure restoration of the complex blood vessel network.

The invention discloses a multi-objective optimization method for a ship organization scheme, relates to the technical field of ship port entry and exit organization and multi-objective optimization, and aims to solve the problems of single consideration factor, one-sided target and low solving efficiency of an existing method, and the method comprises the following steps: S1, selecting total waiting time TWT, total energy consumption TEC and total economic cost TC of a ship as optimization objectives; respectively giving out three calculation formulas; s2, constructing an optimization model with the minimum three as a target, wherein the model needs to meet the constraints such as the number of ships in a harbor area, the waiting duration of a single ship, the in-harbor duration, the navigation continuity, the time window of going to the harbor and the safety interval of the ships; s3, outputting a Pareto solution set through the steps of initial solution adjustment, constraint verification and the like by adopting a multi-target optimization algorithm fusing NSGA-II and an improved direct search algorithm; and S4, algorithm solution is realized based on MATLAB programming, and a ship organization scheme set is obtained.According to the method, multiple factors can be comprehensively considered, a multi-dimensional optimal scheme is output, and scheduling timeliness and practicability are improved.

The application discloses an anchor chain system storage and transportation and laying ship and a working method thereof. The anchor chain system storage and transportation and laying ship comprises a ship body, a hoisting system and a laying device. The ship body is a double-hull ship body, comprising a piece body and a middle connecting structure. An anchor chain storage and transportation unit is arranged in the middle connecting structure, and an anchor head storage and transportation unit is arranged at the piece body. The two units are arranged in different zones, and an adjustable separation structure is arranged in the anchor chain storage and transportation unit. A connecting working area is arranged on the ship body, a chain outlet mechanism is arranged between the anchor chain storage and transportation unit and the connecting working area, and the hoisting system covers the anchor head storage and transportation unit, a chain outlet position, the connecting working area and the laying device. The anchor chain and the anchor head can be stored and transported in different zones, deck mixed storage and working interference are reduced, and the chain storage adaptability and the continuous laying efficiency of a single ship are improved.

1. Name of the product in this design: Double-headed salvage vessel (monocoque). 2. Purpose of this design: To salvage floating objects on the water surface at both point and surface levels, enabling the salvage of both large and small surface debris from both sides. It employs a dual-head structure and a dual-drive device. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application relates to a laboratory vessel draining rack, and relates to the technical field of draining racks, which comprises a support assembly, the upper portion of the support assembly is provided with a detachable draining assembly. The application forms a hierarchical flow guide system through the draining assembly, the drainage groove, the flow guide block and the 5-degree-inclined main draining disc and draining holes. The branch flow guide grooves of the radial branch flow guide rods and the stepped annular grooves are suitable for multiple types of vessels such as test tubes and beakers. The quick-release structure of the positioning rod and the positioning hole, combined with the push piece and the extension spring, realizes convenient disassembly and cleaning of the draining assembly. The hinge dust cover of the vertical plate achieves dustproof protection and reduces the pollution risk. The mounting seat of the base is fixed by a reinforcing device to avoid tilting. Compared with the prior art, the application effectively solves the problems of low drainage efficiency, single vessel adaptation, complicated maintenance, insufficient stability and dustproofing loss, and simultaneously improves the draining efficiency, operation convenience and use safety.

The invention relates to the field of automatic container wharf operation optimization, in particular to a single-ship plan management method for establishing digital ship archives in a container wharf, which comprises the following steps: S11, passing agency, ship companies and online data; s12, importing the collected ship data into a data management system; s13, the wharf production system reads the ship data information from the data management system; s14, obtaining the operation plan of each quay crane according to the ship operation plan, predicting the completion time and the departure time, and making a reference for the dynamic formulation of the ship; s15, executing the operation plan; s16, synchronizing the ship operation condition of the current voyage to a data management platform, and updating the corresponding ship operation efficiency and stowage characteristic data; s17, after the ship operation of the current voyage is completed, whether the next voyage operation exists or not is judged; and if the ship operation of the next voyage number exists, continuing to execute the step S13. The ship operation efficiency and the operation safety are effectively improved.

The application discloses a method and system for synchronously filling natural gas and liquid nitrogen for a single ship in a wharf, which carries out two low-temperature operations in the same time period, uses a ship's sweeping pipe as a main pipeline for liquid nitrogen blowing in a first stage, inertizes the pipeline in the process of liquid nitrogen blowing, and thus has conditions for directly filling natural gas. In a second stage, when natural gas is filled into a cargo hold, only relevant metal hoses need to be removed, so that synchronous operation of filling natural gas and liquid nitrogen on the ship can be realized. The application ensures that LNG is filled into the cargo hold on the ship at the most appropriate time, thereby reducing volatilization of the LNG and saving a large amount of cost. Meanwhile, the application does not stop liquid nitrogen operation on the ship while filling LNG into the cargo hold on the ship, ensures the continuity of debugging of cryogenic equipment, and saves the debugging time.

The invention relates to a rapid marking method for a coronary CTA blood vessel, computer equipment and a computer program product. The rapid marking method comprises the steps that a coronary three-dimensional model is constructed based on a coronary CTA sequence image, a coronary center line is obtained through extraction based on the coronary three-dimensional model, and a single coronary center line is obtained through extraction according to the coronary center line; straightening and reconstructing a corresponding single blood vessel in the coronary artery three-dimensional model along the central line of the single coronary artery to obtain a straightened single blood vessel model; performing section sampling on the single blood vessel model according to an interception plane passing through the central line of the single coronary artery to obtain a section image; and performing image segmentation on the cross-section image to obtain a coronary vessel edge line, mapping the coronary vessel edge line to the single vessel model, and obtaining the single vessel model marked with coronary vessel boundary information. Compared with a scheme of directly carrying out coronary vessel boundary segmentation on the three-dimensional single vessel model, the method has the advantages that the operation difficulty is reduced, and the computing power cost is saved.