400 results about "Tree shaped" patented technology

The invention discloses a tree control rendering method, which comprises the following steps that a data list is acquired, and each piece of data in the data list comprises a hierarchy field and a node field; rendering and generating tree structure data according to the hierarchical field and the node field of each piece of data; rendering and generating a first tree control based on the first N-level nodes of the tree structure data, and displaying the first tree control; and in response to a received instruction for expanding the first tree control, loading data corresponding to a to-be-expanded node and re-rendering the first tree control to obtain a target tree control. The invention further discloses a system, computer equipment and a readable storage medium. According to the scheme provided by the invention, the data with the hierarchical structure can be effectively processed and displayed, tree-shaped hierarchical loading is reduced through a gradual loading and rendering mode, the user requirements are met, and the product performance and the user experience degree are greatly improved.

Embodiments of the invention provide a tree form data processing method and apparatus, an electronic device and a readable storage medium. The method comprises the steps of determining selected information corresponding to a selected instruction; monitoring a dragging action of a mouse cursor, predicting a real-time terminal point position of the model through a dragging terminal point, and dynamically rendering a visual prompt layer at the same time; when monitoring that the dragging action is a stop action, determining the placed data and obtaining a data path, and when the data type of the to-be-dragged data is a combination type, obtaining a data set of a to-be-dragged combination where the to-be-dragged data is located and an index position where first data in the to-be-dragged combination is located, assigning the index position to a tail end index in a data path of the data to be dragged; and traversing data elements adjacent to the placed data in the data path of the placed data to update the key value distribution. According to the method, the defect of performance optimization in the process of executing the dragging action by the preset tree form is effectively solved, and the experience feeling in the process of operating the preset tree form by a user is remarkably improved.

The invention discloses a mechanical structure reliability evaluation method based on a hybrid R-Vine Copula model, and the method comprises the steps: firstly, selecting an optimal R-Vine tree type according to sample data by employing an AIC criterion and the basic definition of an R-Vine tree type, employing a hybrid Pair-Copula function for the first layer of R-Vine tree type to improve the sample adaptability, employing Clayton, Gumbel and Frank Copula functions to construct a hybrid Copula function, and employing a Pair-Copula function to construct a Copula model; calculating a weight coefficient and a dependent parameter of the mixed Pair-Copula function by using an expectation maximization algorithm; a subsequent tree type is constructed by adopting a single Pair-Copula function, so that the optimal balance between the calculation efficiency and the calculation precision is achieved, and the optimal construction based on the mixed R-Vine Copula model is completed; and finally, solving the reliability index and the failure probability of the structure based on a mixed R-Vine Copula model in combination with an improved first-order second-order moment method.

According to the forest and fruit tree body profiling flapping fruit harvester based on the special-shaped crankshaft structure, transmission is achieved through special-shaped crankshafts with different crank throw eccentricity degrees, and the movement amplitude of flapping strips is limited through the inner side edges of amplitude limiting plates; the purpose that the flapping strips are arranged in a manner of imitating the contour of a tree crown can be achieved while the flapping strips are flapped, the flapping strips are arranged in a shape of imitating a tree shape, missed flapping of the top of the tree crown and the pole position of the symmetry axis is avoided, and the net picking rate of different positions is increased. The device comprises a chassis vehicle body and a tree-like flapping device, in the tree-like flapping device, a crankshaft with a plurality of crank throws is rotationally arranged on a base, and the eccentric distances of the crank throws are different; the lower end of each beating strip is hinged to a crank throw of the crankshaft; opposite amplitude limiting plates are arranged on the higher parts of the two sides of the base, and an amplitude limiting hole is formed between the opposite inner side edges of the two amplitude limiting plates; the distance between the inner side edges of the two amplitude limiting plates close to the center of the amplitude limiting plate in the direction parallel to the axial direction of the crankshaft is smaller than the distance between the inner side edges of the two amplitude limiting plates close to the two ends of the amplitude limiting plate.

The invention discloses an automatic verification excitation generation method based on a backtracking thinking tree, and the method comprises the steps: constructing a backtracking thinking tree frame based on a self-feedback mechanism based on a thinking tree for a to-be-verified processor function; under the backtracking thinking tree framework, decoupling a to-be-verified function from top to bottom through a large language model, and recursively decomposing the whole to-be-verified function into function points capable of being independently verified layer by layer through a tree structure; according to each function point, determining a normal function and a boundary of each function point, and for each function point, generating verification excitation layer by layer in a tree structure; after the verification excitation is generated, self-verification and self-backtracking are carried out layer by layer through a tree structure, and finally, the generated verification excitation is executed on the processor design to verify the correctness of the processor function. According to the method and the system, the function verification efficiency and the verification coverage rate of the processor are remarkably improved.

According to the forest and fruit tree body profiling flapping fruit harvester based on tree form recognition, the flapping action of the flapping strips is achieved through rotation of the crankshaft and push-pull of the piston rod of the air cylinder, different portions of a tree crown can be effectively beaten, missed flapping of the top of the tree crown and the pole portion of the symmetry axis can be avoided, the net picking rate is uniform, and the automation degree is high. The device comprises a chassis vehicle body and a tree-like flapping device, the tree-like flapping device comprises a base arranged on the chassis vehicle body, at least two bearing seats are arranged on the base, a crankshaft with a plurality of crank throws is connected to the bearing seats, a driving device for driving the crankshaft to rotate relative to the bearing seats is arranged on the base, and the lower end of each flapping strip is hinged to one crank throw of the crankshaft. Each sleeve is arranged on the corresponding beating strip in a sliding mode, a plurality of air cylinders arranged in the axial direction of the crankshaft are arranged on the base, and the end of a piston rod of each air cylinder is hinged to the corresponding sleeve.

The invention relates to a database Schema version management method and device, computer equipment and a storage medium. The method comprises the following steps: responding to received target Schema tree structures sent by each user terminal, generating a combined target Schema tree structure according to each target Schema tree structure, and performing format conversion on the combined target Schema tree structure to obtain a modified Schema file; performing tree node traversal comparison according to the combined target Schema tree structure and the to-be-modified Schema tree structure to obtain corresponding distinguishing tree nodes; the distinguishing tree nodes are tree nodes on the combined target Schema tree structure which are different from the Schema tree structure to be modified; and determining a version modification type of the modified Schema file according to each distinguishing tree node, generating a semantic version identity identification number of the modified Schema file according to the version modification type, and storing the modified Schema file into a database according to the semantic version identity identification number. By adopting the method, the efficiency can be improved and version management chaos can be avoided.

The invention provides a high-performance virtual scrolling method and system supporting a large-scale tree structure, and the method comprises the steps: constructing a dual-mapping data table structure of the tree structure, which comprises a node mapping table and a sublevel relation mapping table; when it is detected that the node height changes, the virtual rolling rendering engine generates a flattened rendering list in real time based on the unfolding state of the corresponding node in the node mapping table; the virtual rolling rendering engine calculates rendering positions of nodes in the visual area through a dynamic position prediction algorithm; in response to the rendering location and the device type, the virtual scrolling rendering engine dynamically adjusts the virtual scrolling window and the tree structure node hierarchical indentation pitch, and renders in the virtual scrolling window according to the flattened rendering list. According to the application, the data relationship and the rendering position are decoupled through the double-mapping data table structure, the smooth rolling of ten thousand-level nodes can be realized, the memory occupancy rate is reduced, the interaction response speed and the rendering performance are improved, and the method has rolling stability, cross-device display consistency and deployment flexibility.

The invention discloses a distributed multi-level organization data space construction method and device based on a tree structure. The method comprises the following steps of: 1) constructing a data space node with autonomous management capability, which has independent operation capability and data autonomous characteristics and has native control right on data of a data space to which the data space node belongs; 2) deploying spatial network coordination nodes by using a spatial network coordination node device; 3) registering the data space node to a space network coordination node, and constructing a distributed space communication network; 4) constructing a multi-level data space tree topology based on the organization hierarchical relationship, and forming a tree structure multi-level organization data space; and 5) based on the management network of the tree structure, implementing a three-power discrete control mechanism of data control power, management power and use power, and supporting cross-domain data sharing. According to the method, data complex strip block management of huge complex organizations in the real world is mapped into a tree structure, control over the management right, the control right and the use right is achieved on the basis of the tree structure, and therefore efficient circulation and collaborative management of data among multi-level organizations are achieved.

The invention relates to a novel tree-shaped fin vertical phase change heat storage device and an evaluation method thereof, and the novel tree-shaped fin vertical phase change heat storage device comprises a heat storage shell, heat exchange tubes and heat exchange fins. And a heat exchange tube is arranged in the heat storage shell. The heat exchange fins comprise a first main fin, a second main fin and a third main fin which are connected in sequence; the length direction of the first main fins, the length direction of the second main fins and the length direction of the third main fins are consistent with the axial direction of the heat exchange pipes. The first main fins are connected with the heat exchange tubes, and the width direction of the first main fins is consistent with the radial direction of the heat exchange tubes. The heat exchange fins further comprise first branch fins and second branch fins, the first branch fins and the second branch fins are arranged on the first main fins, the first branch fins are located between the two second main fins, and the second branch fins are perpendicular to the first main fins. By arranging the first branch fins and the second branch fins on the first main fins, under the condition that the total volume of the heat exchange fins is not changed, melting dead angles are eliminated, and the heat storage efficiency is improved.

The invention discloses a difference interaction method for a visual editor, which comprises the following steps: converting bottom data of the visual editor into a tree structure, and setting a unique identifier and a path index for each node in the tree structure; comparing the original tree structure with the newly generated tree structure through a tree difference algorithm according to the path index to obtain difference nodes, generating atomized Patches in one-to-one correspondence, and mapping the atomized Patches and the nodes through unique identifiers; and according to the atomized Patch, semantic description is obtained through a semantic interpretation engine so as to generate semantic Patches, and the semantic Patches are visually displayed so as to respond to user confirmation to perform dynamic updating. Through tree structure modeling, atomization difference analysis and semantic interaction, the problems of black box, version control deficiency, insufficient interaction experience and the like of a generative AI auxiliary visual editor in the prior art are solved.

The invention discloses a method for realizing cost reduction and benefit increase of Chinese prickly ash based on fruit-bearing branch group rotation, which comprises the following steps: constructing a Chinese prickly ash fruit-bearing branch group rotation shearing tree form within 1-3 years, the fruit-bearing branch group rotation shearing tree form comprises a trunk, four first-grade branches and two-grade branches, the four first-grade branches are uniformly distributed around the trunk and are respectively positioned at different heights, and the second-grade branches are uniformly distributed around the trunk; the base angle of the first-level branch is 50-60 degrees, and three second-level branches are selected and reserved on the first-level branch in the tree shape culture period for culture; after the tree shape is cultured and formed, a plurality of second-level branches are distributed on each first-level branch, and a plurality of third-level branches are distributed on the selected second-level branches; after fruit bearing and production, four first-level branches are divided into a current-year harvesting group and a next-year harvesting group, and the current-year harvesting group and the next-year harvesting group are alternately carried out; the second-stage bearing branches on the group harvested in the current year and the third-stage bearing branches on the selected second-stage branches are all cut off, the pile remaining height does not exceed 2 cm on the basis that 1-2 buds are reserved, and the second-stage branches on the two first-stage branches of the group harvested in the next year and the third-stage branches on the reserved second-stage branches are pruned and cultivated to serve as a bearing branch group of the next year; and the steps are cyclically and alternately performed. The method has the advantages of being easy to operate, stable in yield, low in management and protection and picking cost, good in quality and the like.

The invention discloses a building design modeling method and system based on a parameter entity and a Boolean relationship thereof, and the method comprises the steps: converting a plurality of building components into geometric body data based on a structure shape, and abstracting a single geometric body into a whole model according to the Boolean relationship between the building components required by the design; the method specifically comprises the steps that firstly, building design related component data given by a user is preprocessed, a two-stage structure is adopted to redefine a geometry, the geometry is stored, and the Boolean relation between components is represented through a tree structure; the preprocessed data are transmitted into a grid generation solver, and a final three-dimensional model and affiliated topological information are obtained through background grid and contour surface construction, topological information integration and grid post-processing. The method can ensure that the building design modeling process has good robustness and calculation efficiency.

The invention discloses a multi-dimensional tree form control generation method and device, and relates to the field of data processing. The method comprises the steps of obtaining a flattened original data array, an expandable dimension array, a maximum dimension hierarchy and a configuration object issued by a background; initializing a core data structure; original data and all nodes are traversed, father nodes are searched, the relation is established, and a two-channel tree structure is constructed; generating and rendering a table view based on the constructed tree structure; and in response to user interaction, dynamically unfolding and folding table nodes by maintaining inter-row reference and folding states. According to the method, the natural hierarchy and the interactive expansion hierarchy of the data are separated through the dual-channel tree structure, and the problems of hierarchical disorder, low rendering efficiency and slow interactive response of a traditional tree table during multi-dimensional data analysis are solved by utilizing a path key mapping and state local updating mechanism; efficient and flexible multi-dimensional data display and interaction are realized, and the method is suitable for enterprise-level data analysis scenes.

The invention discloses a red pepper layered tree shape cultivation and pruning-free picking method. The problems that traditional red pepper picking is low in efficiency, high in labor cost, complex in pruning and difficult in old tree transformation are solved. According to the technical scheme, when a new tree is cultivated, first-level branches (trunks) are controlled to be 2-2.5 m, tops are removed, three layers of second-level branches which are evenly distributed in a staggered mode are cultivated, three branches are arranged on each layer, nine branches are evenly distributed by 360 degrees in total, 15-20 sets of third-level branches are cultivated for each second-level branch, each set comprises A branches and B branches, and the two sides of each set are staggered; during picking, one third-level branch in each group is removed (with hidden buds reserved), and pruning is avoided; when old trees are transformed, branches and trunks are cut, stumps are reserved, and robust sprout tillers are selected to be cultivated according to a new tree method; according to the method, the yield of a single plant in the full-producing period reaches 27-54 jin, the picking efficiency is improved by 3-5 times, the labor cost is reduced by 50% or above, and the method is suitable for red pepper suitable-to-grow areas at the altitude of 1500-2200 m.

The invention relates to the technical field of computer communication, in particular to a dynamic two-way matching tree menu resource hierarchy retrieval method and system.The method comprises the following steps that 1, when a user inputs a search keyword, whether the keyword is empty or not is judged, if not, a current node serves as a dynamic starting point, and if yes, the current node serves as a dynamic starting point; bidirectional recursion is carried out on the parent level and the child level; 2, in the bidirectional recursion process, detecting whether the current node can be matched with the keyword or not, and judging whether a matching result is stored in an array or not according to a detection result; and step 3, after bidirectional recursion is completed, traversing the array, and returning a final result according to a traversal result. According to the method, through dynamic bidirectional recursive matching of the father chain and the sub-chain, it is ensured that a complete hierarchical path of a keyword association node is reserved, efficient filtering is achieved in combination with short-circuit optimization, and the problem that father and sub-nodes are split in traditional tree data retrieval is solved.

A reconstruction method and apparatus for a three-dimensional entity model, a device, a medium and a program product. The method comprises: obtaining three-dimensional space information corresponding to a three-dimensional entity model; on the basis of the three-dimensional space information, carrying out voxel division on the three-dimensional entity model, and determining voxels corresponding to the three-dimensional entity model and connected in a tree shape, wherein the voxels are distributed on the surface of the three-dimensional entity model, and used for representing the geometric shape of the surface of the three-dimensional entity model; on the basis of the voxels connected in the tree shape, constructing a three-dimensional mesh model corresponding to the three-dimensional entity model, wherein the three-dimensional mesh model is used for reconstructing a three-dimensional entity model after rendering.

The invention relates to the technical field of copper pipe quality detection, in particular to a copper pipe quality tracing data storage method and system, and the method comprises the steps: dividing a copper pipe production process into a plurality of machining process stages according to process nodes of the process, and forming a process stage sequence; correspondingly collecting copper pipe production parameters of each processing process stage, and converting the copper pipe production parameters into a unique identification traceability voucher; based on the process stage sequence, merging the tracing vouchers of the processing process stages step by step, and generating a copper pipe quality voucher chain; taking the copper pipe quality certificate chains of a plurality of unit products as certificate storage paths to generate a tree-shaped verification structure, and tracing the certificate storage paths by the tree-shaped verification structure based on a cross-subsystem communication protocol; and in response to a copper pipe quality traceability request, positioning an evidence storage path of the copper pipe production parameter of the corresponding unit product according to the tree-shaped verification structure, and obtaining the copper pipe production parameter corresponding to the traceability certificate. According to the invention, the problem of trusted mapping fault between the production process and the digital evidence storage system is effectively solved.

The invention discloses a cascade reservoir multi-objective optimization scheduling method and system based on tree structure unbounded archiving, aims to solve the problem of complex multi-objective optimization under the action of high-dimensional multi-constraint coupling represented by cascade reservoir group joint optimization scheduling, and constructs a tree structure suitable for large-scale data storage and updating. According to the method, a tree structure is constructed, an unbounded archiving strategy based on the structure is provided, archiving scale limitation is cancelled, loss of potential effective solutions is avoided, the strategy is integrated into a multi-target particle swarm algorithm, and the multi-target particle swarm algorithm based on tree structure unbounded archiving is formed. The method comprises the steps of arrangement and analysis of scheduling data, establishment of a cascade reservoir multi-target optimization scheduling model, design of a tree structure and an unbounded archiving strategy, algorithm fusion, model solution and the like, and can be applied to cascade reservoir multi-target optimization scheduling to obtain a high-quality optimization scheduling scheme set, provide decision support for scheduling personnel and improve the scheduling efficiency. And the method has obvious practical application value.

The embodiment of the invention discloses an object classification method and device, a medium and equipment. A multi-level category system is constructed, the category system can be represented through a tree structure, and each node of the tree structure represents a category word; category words represented by child nodes belong to category words represented by parent nodes; each node path of the tree structure represents an object classification. On the basis of a category system represented by a tree structure, semantic matching is carried out on description information of a to-be-classified object and node paths in the tree structure by means of the semantic analysis capability of a language model, and at least one target node path having a semantic matching relationship with the description information is determined; and the object classification corresponding to the to-be-classified object can be obtained. In addition, the technical scheme can be applied to a trusted execution environment, so that the description information of the to-be-classified object is prevented from being leaked.

The invention discloses application of a PdePin1At protein and a coding gene thereof in regulation and control of a plant tree form. According to the invention, a transgenic poplar with reduced PdePin1At gene expression quantity is constructed by using a microRNA interference technology, and experiments prove that compared with a wild poplar, the leaf area, the leaf width, the leaf length, the branch included angle, the petiole length and the phyllotactic angle of the transgenic poplar are reduced, and the number of leaves / stem nodes is increased. The method is of great significance to molecular mechanism and theoretical research of regulating and controlling poplar tree forms, leaf shapes and quantity, branch angles and phyllotaxis, and is of great guiding significance to directional cultivation of trees with tree forms meeting actual production requirements. Under the condition that the plant height is not changed, the number of leaves of newborn organs can be increased, so that the number of photosynthetic organs is increased; and by changing the included angle of the branches, sunshine shielding can be reduced during close planting of the forest trees. Therefore, the method also has important guiding significance on agricultural production.

The invention relates to the technical field of agricultural cultivation, in particular to a construction method of an improved double-Y tree shape suitable for sightseeing and picking of grapes, the constructed tree shape comprises two vertical trunks which are parallel and adjacent to each other and have a vertical distance of 60-70cm, each trunk cultivates two main vines which extend reversely along the row direction, the included angle between the trunk and the main vines is 90-100 degrees, and the main vines and the main vines are connected in parallel. Fruiting branches are cultivated on the main vines at intervals, and Y-shaped leaf curtains with upper and lower layers of differential included angles are formed; the construction method comprises the five steps of seedling seed selection and field planting, trunk and vine cultivation, fruiting mother branch cultivation, winter pruning and load capacity accurate control, wherein load capacity control achieves standardized operation through target backward pushing, flower and fruit thinning and field regulation and control. Wide-row thin planting is achieved, mechanical operation and sightseeing picking are facilitated, clusters are neat, the ornamental value is high, three-dimensional fruiting can be achieved, the picking period can be prolonged by matching with different varieties, meanwhile, the fruit loading capacity is precisely controllable, the grape yield and quality are effectively improved, and the economic benefit of a sightseeing picking garden is effectively improved; the method is suitable for large-scale popularization and application in the grape sightseeing picking industry.

The utility model provides a kind of garden tree modeling pruning device, it is related to garden pruning equipment technical field, including bottom plate, the top of bottom plate is fixedly connected with first motor, the bottom of bottom plate is provided with lifting assembly, the output of first motor is fixedly connected with rotating rod, one end of rotating rod is fixedly connected with fixed disc, the outside of fixed disc is fixedly connected with blade, the bottom of lifting assembly is provided with base, and the four corners of base bottom are all fixedly connected with moving wheel.The utility model has the beneficial effects that: reasonable in design, convenient to use and strong practicality, the position of pruning blade, height can be adjusted, so that pruning is more convenient.

A system for forming trunks of trees, plants, and vines into predetermined letter, word, numerical, and shape configurations having a wire assembly with a guide wire having a predetermined configuration; and a trunk of a predetermined thickness, whereby the trunk is secured to the guide wire, wherein the trunk adopts the configuration of the guide wire as it grows, thickens, and matures. The guide wire is a single continuous wire and is of a predetermined gauge to be shaped into said predetermined configuration. The configuration is a letter, letters, a word, words, a number, numbers, and / or a geometric shape, shapes. The trunk is secured to said guide wire with zip ties that are positioned separated a predetermined distance from each other allowing the trunk to align with the guide wire to adopt to the predetermined configuration.

The present invention discloses a method, system, and device for identifying the state of an insulator string. The method involves obtaining an image of an insulator string to be detected and extracting multiple texture features of the insulator string image using a preset texture feature extraction model. The similarity between each texture feature and a plurality of tree features within a preset tree data structure is then calculated. The texture features are then classified into texture states corresponding to the respective tree data structures according to the similarity, and the number of classifications for each texture state is counted in real time. Finally, the texture state corresponding to the largest number of classifications is selected as the target insulator string state corresponding to the insulator string image. The texture features corresponding to the insulator string image are extracted using the texture feature extraction model and compared for similarity with the tree features within the preset tree data structure, thereby determining the target insulator string state, improving recognition speed, and achieving high recognition accuracy.

To enable a user to easily search for contents matching his / her taste and to continue his / her motivation for creation.SOLUTION: The content management device includes an acquisition unit that acquires collected sound data indicating sound data collected while a user is reproducing content or composite content, a harmonization determination unit that determines whether or not a sound of the collected sound data is harmonized with the reproduced content or composite content and outputs tag information tagged to the content or the composite content, and a reproduction configuration unit that selects at least one of the content and the composite content to be distributed to the user on the basis of the tag information regarding the user.SELECTED DRAWING: Figure 10

The utility model belongs to the technical field of installation, and discloses a riveting structure. The riveting structure comprises a metal part and a plastic part, the metal part comprises a rod part assembly, two tree-shaped protruding assemblies are distributed on the rod part assembly at intervals, and the two protruding assemblies both protrude out of the peripheral face of the rod part assembly; the plastic part is provided with a hole site, the rod assembly of the metal part is inserted into the hole site, the diameters of the outer circumferences where the two protruding assemblies are located are both larger than the diameter of the circumference of the corresponding position of the hole site, so that the two protruding assemblies extrude the inner wall of the hole site of the plastic part to generate a deformation space, and the two protruding assemblies are buckled in the deformation space. According to the riveting structure, the connection strength between the metal part and the plastic part is remarkably enhanced, the contact area between the metal part and the plastic part is increased through the tree-shaped protruding assemblies, firmer connection is achieved by means of the elastic deformation characteristic of the plastic part, the problem of looseness or failure caused by insufficient connection strength in the long-term use process is solved, and the service life of the connector is prolonged. And the stability and durability of the riveting structure are improved.

The utility model relates to the technical field of railway building components, in particular to a tree-shaped beam column structure for a railway station canopy, which comprises a support rod, the upper part of the left end and the upper part of the right end of the support rod are fixedly connected with fixing frames, and the lower end of the support rod is fixedly connected with a fixing plate. A drainage channel is formed in the middle of the upper end of the supporting rod and the middle of the upper end of the fixing plate, and a plurality of fixing holes are formed in the upper end of the fixing plate. According to the tree-shaped beam column structure for the rain shed of the railway station, due to the fact that the two fixing frames are arranged, when the tree-shaped beam column structure is used for installing and using the rain shed, the three supporting plates in the fixing frames can absorb and weaken wind vibration generated by the rain shed, the damping effect can be achieved, and the situation that the rain shed is damaged in the strong wind weather is avoided. The rain shed is damaged due to the wind vibration effect, the drainage channel is formed in the upper end of the device, when the device is used, rainwater falling on the rain shed slides to the upper portion of the supporting rod and flows away through the drainage channel, and it is avoided that the rainwater is retained on the upper portion of the device to cause corrosion of the device.

This invention discloses a method and system for managing and automatically formatting slide content based on a tree structure. By abstracting different types of materials such as text, images, tables, code snippets, and mathematical formulas into tree nodes with parent-child hierarchical relationships, users can freely add, delete, move, or mark nodes in a visual interface to achieve rapid merging or splitting of multi-level documents. The system then maps several nodes into multiple slides based on the node merging or splitting markers; and automatically formats the pages during the output stage, including overflow detection and font scaling, adaptive image proportioning, line wrapping for tables or code snippets, and format conversion of mathematical formulas. This approach significantly reduces the burden of manually adjusting text and images, maintains consistency and aesthetics in slide layout across different resolutions, and is suitable for multi-level, text-rich, and large-scale presentation document scenarios.

The utility model belongs to the technical field of agricultural machinery, and particularly relates to an anti-brown-spot layered pruning support suitable for canopies of tangelo trees. Comprising first connecting rods, second connecting rods, first connectors, second connectors and telescopic stand columns, the multiple first connecting rods and the multiple first connectors are connected to form a first closed loop, the multiple second connecting rods and the multiple second connectors are connected to form a second closed loop, and the adjacent first connectors are connected with the second connectors. Layered pruning management is achieved, the light transmittance is improved, humidity accumulation is reduced, the support can be rapidly assembled, the device adapts to different tree ages and tree forms, the manual climbing risk is reduced, operation is easy and convenient, and practicability is high.