76 results about "Tree pattern" patented technology

A system, method and computer program product are provided for recognizing virus signatures. Initially, a list of virus signatures is provided. Next, the list of virus signatures is combined into a tree of virus signatures. Data is subsequently compared against the tree of virus signatures for virus signature recognition.

The invention provides a method of processing a sequence of operands to produce compiled code for a target data processor, the method comprising the steps of: automatically analysing a source code to produce a fist representation of that code in single static assignment form; transforming the first representation into a second representation by unlooping Φ nodes within the single static assignment form so as to create code suitable for tree pattern matching to be performed thereon; performing tree pattern matching on the second representation of the code; and re-looping the Φ nodes.

Modular forest automata (MFA) provide a unified description of partially-ordered regular tree patterns. MFAs provide simple methods for determinization, sub-typing, intersection, and complementation of these patterns. MFAs support high-performance pattern analysis and matching. Modular forest transducers, in conjunction with modular forest automata, enable compilers to place semantic actions on any state transition while supporting efficient transformation of labeled, directed graphs.

The invention relates to the field of city traffic safety facilities, in particular to a multi-color city tunnel exit guide visual reference system. The multi-color city tunnel exit guide visual reference system comprises exit section pavement colorful direction signs, side wall colorful guide patterns and curb vertical face marking lines. The multi-color city tunnel exit guide visual reference system starts in the range of 300-500 m in front of city tunnel exits and ends in tunnel exit ramps; different color systems are adopted by different ramp exits; meanwhile, side walls adopt the rhythm type tree patterns, and a 75-degree-angle is formed between the side walls and the uphill direction at the same time and is suitable for tunnel exits of which the uphill gradient is 2-5%; and the colors of the pavement colorful direction signs and the colors of the side wall colorful guide information are kept consistent, so that the pavement colorful direction signs and the side wall colorful guide information jointly form the multi-color tunnel exit guide visual reference system. According to the multi-color city tunnel exit guide visual reference system, the identification difficulty of the direction information and the gradient information for a driver can be lowered, the driver can be effectively guided to drive away from an expected exit, the operation efficiency in a city tunnel is improved, and meanwhile, the tunnel exit section safety is ensured, so that the accidents of tailgating and the like are avoided.

A time delay dynamic regulation method for a tree structure covered with depth signals includes the steps that each node in the tree structure obtains an optical fiber time delay value from a tree root node to the node, and the maximum optical fiber time delay value from the tree root node to a link final stage is recorded and serves as the maximum optical fiber link time delay of the whole network; the tree root node serves as a time delay regulation reference starting point, the tree root node broadcasts the maximum optical fiber link time delay of the whole network to various leaf nodes, the leaf nodes calculate the maximum optical fiber link time delay of the whole network and difference values Ta from the tree root node to optical fiber time delay values of the leaf nodes, the Ta and current set time delay values Ts of the Ta serve as difference values, if the absolute values of the difference values are 0 or less than a preset threshold value, regulation is needless, and otherwise the set time delay values are replaced by Ta from Ts. According to the method, the problem of time delay regulation in complex tree-shaped topological structure signal covering is solved, precision is high, time needed for whole network regulation is short, extendibility is high, and influences on time delay in a mode that a topological network adds or removes branches are reduced to the minimum.

The invention discloses a method for organizing and displaying files. By combining the advantages of a tree-shaped control and a list control, file information is displayed in a tree form. By the method, the files under a plurality of folders can be conveniently browsed at the same time and the files under the plurality of folders also can be operated, such as deleting, copying, cutting, dragging and the like. In the method, the files are grouped by using characteristic character strings in file names and the grouped files are displayed in a folding way. According to the sort order of the files, the most common file is used as a root node for a group, so that the access efficiency is improved, the number of the displayed files is reduced and the file browsing becomes easier.

The invention discloses an efficient cultivation method of a camphor forest for oil use. The method comprises the steps of selection of nursery stocks, determination of site conditions, adoption of aplanting technique, density regulation, tree shape regulation, tending management, determination of a harvesting mode and the like. According to the method, clonal cutting container seedlings or tissue culture container seedlings are selected, and various parameter values of the nursery stocks are strictly controlled, so that the content of oil and linalool in camphor trees is ensured; through implementation of secondary seedling hardening, the survival rate of afforestation is greatly increased, and by adopting a rational close planting means, a plexiform tree shape regulation means, a meansof harvesting twice in one year and other technical means, the yield of the branches and leaves of the camphor trees is greatly increased. By means of the method, waste residues obtained through a linalool extraction process are also recycled as camphor planting fertilizer, the cost is reduced, and the environmental pollution caused by waste is reduced; meanwhile, camphor tree resources are rationally harvested, a predatory harvesting mode is avoided, and sustainable utilization of the camphor tree resources is achieved.

A method for parsing a text file defines a tree pattern and a plurality of character string patterns. A tree structure corresponding to the text file is determined according to the tree pattern, and the desired data are retrieved from the text file according to the character string patterns. The retrieved desired data are output into a storage system.

The invention belongs to the technical field of support arm structures, and discloses a method for designing a support arm of a bifurcate arborescence arc by solving the tree shape optimization modelof bifurcate arborescence support arm. After dimensionless processing; the ratio between the unit rigidity ratio of the trunk arm and the branch arm, the ratio of the angle between the two branch armsand the round angle of the arc is given; the unit stiffness ratio of the trunk arm and the first branch arm and the unit stiffness ratio of the trunk arm and the second branch arm are both 5.67, andthe length ratio of the branch arm to the second branch arm is 1.02; the cross section height ratio and the thickness ratio of the trunk arm and the first branch arm are 1.805 and 1.405 respectively,and the cross section height ratio and the thickness ratio of the trunk arm and the second branch arm are 1.805 and 1.405 respectively; At this time, the integral buckling load of the arborescence branch arm structure is 2.50-4.34 times of the buckling load of the two branch arms, and the volume ratio of the structure is reduced by 37-53%. The support arm has the advantages that the structure is lightest, the buckling load of the integral structure is maximal, and the stability is the highest.

The invention discloses a single-trunk three-main-branch open-center tree shape of carya illinoensis and a shaping and pruning method thereof. The tree shape is characterized in that the trunk fixing height is 1.5-2.5 m; three main branches are selected and reserved, the main branches are alternately grown on a central trunk at the same height, the angle is about 120 degrees, the main branches are inclined upwards, the opening angle is 45-60 degrees, more than 8 lateral branches which are outwards inclined are cultivated on each main branch, bearing branch groups are attached to the lateral branches, the distance between the lateral branches is about 30 cm, and when the main branches are 2.5 m or above, heads fall off in time, and the height of the main branches is not higher than 3.5 m. The tree shape has no central trunk above a branch point, and three main branches are uniformly distributed around a crown and are not crossed and overlapped. The tree shape can be formed in 2-3 years, has the advantages of being fast in shaping, good in early-fruiting yield, easy to shape, simple in later-stage pruning and convenient to grasp, and is a novel high-quality, early-fruiting high-yield and labor-saving tree shape beneficial to mechanization cultivation for carya illinoensis.

The invention discloses a cultivation method of fruit trees. According to the cultivation method, non-fixed boughs are adopted, branch groups are updated to an open-heart-shaped tree form every year,the tree form is updated every year and grown, a tree body can be shrunk to the largest extent, the requirement for the space under high density is met, sufficient illumination is guaranteed, and management is facilitated. The cultivation method of the fruit trees has the advantages that the yield of peach trees cultivated by means of the method can be increased by 20% or above per unit area compared with that in the prior art, and the acre yield reaches 3,000 kg or above, and is increased by 20% or above compared with that in the prior art; soluble solids of peach fruits can reach 12% or above and are increased by 2% or more compared with that in the prior art; the proportion of high-quality peaches is increased to 85% or above, and increased by 15% compared with that in the prior art. Bymeans of the cultivation method, marketing of the high-quality peaches can be advanced by 20-30 days, the opportunity of the market scarcity period is grabbed, and higher economic benefits are obtained.

The invention discloses a short, dense, early and high-yield cultivation technique for evodia rutaecarpa.A short-trunk, low-crown, ventilated and light-permeable tree shape is obtained by selecting good-variety middle flower type evodia rutaecarpa as a mother plant and combining garden management and growth regulation and control through two and a half years of continuous shaping.The tree shape has the advantages of being high in yield, good in quality and the like and is low in cultivation cost, simple in cultivation technique and suitable for application and popularization.

The invention provides a Wallace tree compressor based on a Xilinx FPGA primitive. The Wallace tree compressor is composed of a tree type compression structure and a final summation unit. The tree-shaped compression structure compresses a plurality of binary numbers to two or three outputs, and the summing module adds compression results and outputs a final result. The tree-shaped compression structure takes a 4: 2 compressor as a basic compression unit and is matched with a 3: 2 compressor when necessary. The bit level structure of the 4: 2 compressor comprises an LUT6-2 module, a first muxcy module and a first xorcy module which are used for original intonation of the Xilinx FPGA; the LUT6-2 module is configured to be two LUT5 which share input and independently output, and two independent binary functions can be realized; and the first muxcy module and the first xorcy module are special carry logic resources in the CLB and are configured into a 3: 2 compressor. A 3: 1 compressor is designed as a final summation unit of the Wallace tree according to the same thought. The method is used for achieving multi-operand addition and subtraction operation, the utilization rate of hardware resources is greatly improved, and the overall delay and power consumption of the Wallace tree are reduced.

The invention provides a greenhouse blueberry post-harvest pruning method, and relates to the technical field of fruit tree pruning. A set of post-harvest pruning closed-loop technical system is established for the first time based on the post-harvest pruning concept of branch production and cultivation, branch yield determination, high-quality fruiting and simplified pruning. According to the method, the high-yield tree type suitable for blueberry production is determined, the technical standard of the tree type is quantified, and meanwhile, the industrial yield standard in post-harvest pruning fruiting mother branch culture and in the yield which is not lower than 1 ton of fruits per mu is quantified. According to the method, the optimal branch remaining amount is determined by determining the technical standards of selection, number and thickness of fruiting mother branches and the technical standards of the number and yield of formed fruiting branches, meanwhile, the pruning operation technical standard of branch shaving of fruiting mother branch culture is combined, the post-harvest pruning operation technical standard and process are established, operation is standard and process-oriented, and the method is suitable for large-scale popularization and application; and industrial trimming and modeling production becomes possible. The method is wide in system applicability and can be suitable for all greenhouse south highbush and north highbush blueberry varieties.

The invention aims to provide a high-performance list implementation scheme based on tree structure data. According to the scheme, firstly, branch node initial information of tree structure data is obtained, then a branch node index is constructed, state information of branch nodes is created, branch nodes and leaf nodes of a branch node direct filial generation are constructed, then a data sourceof a high-performance list is constructed, a result is stored in a node information array, and when the high-performance list is unfolded for the first time, and data under branch nodes are asynchronously acquired, and data of the high-performance list is constructed by traversing the node information array. Compared with the prior art, the operation performance of the tree structure data can beimproved, the operation waiting time is shortened, and the user experience is improved.

The invention relates to a three-dimensional tree model matching method based on a tree space, and the method comprises the following steps: S1, constructing a tree model data set, and obtaining a hand-painted contour of a tree; S2, constructing a tree-shaped space, and uniformly mapping the point data of the hand-painted contour of the tree and the point data of the three-dimensional tree model in the tree model data set into the tree-shaped space; S3, calculating a hand-painted contour of the tree and a convex hull of a three-dimensional tree model in the tree model data set; S4, performingdimension reduction operation based on the grid coding of the scanning operator; S5, carrying out the similarity calculation on the tree hand-painted contour and the three-dimensional tree model in the tree model data set, and completing the matching of the three-dimensional tree model. Compared with the prior art, the method has the advantages that the accuracy is high, and the large-scale retrieval reuse efficiency of the three-dimensional tree model is effectively improved.

The invention discloses a dwarf and close planting method of carya illinoensis on a plateau mountain. The dwarf and close planting method of the carya illinoensis on the plateau mountain comprises thefollowing steps: (1) selecting a plantation: selecting the mountain with a slope of 10-20 degrees and an aspect of an east aspect, a west aspect or a south aspect for plantation building; (2) conducting graft seedling selection and planting density control: conducting afforestation by means of good-variety container graft seedlings of the carya illinoensis, wherein the age of the graft seedlingsis 2 years or above, and planting spacing is 3 m*5 m; (3) conducting fertilizer application: in autumn, conducting ditching on soil in a radial mode, applying an organic fertilizer, and applying a compound fertilizer in spring; (4) conducting management: selectively keeping 5-8 lateral branches on each trunk the next year after the graft seedlings are planted, and culturing a multi-bough open-center tree shape through comprehensive measures of branch pulling and branch twisting; (5) from the fourth year, applying paclobutrazol on soil from April to May; (6) supplementing trees with average newshoot length equal to or larger than 30 cm in the next year with paclobutrazol applied on the soil, applying urea on the soil from February to March every year, applying the compound fertilizer on the soil in June, conducting ditching in a radial mode in late October, and applying the organic fertilizer; (7) conducting pruning: conducting whip-back pruning on the trees from January to March everyyear; and (8) conducting interplanting: conducting interplanting in the plantation. Dwarf and close planting of the carya illinoensis on the plateau mountain is achieved, and a yield is raised.

The embodiment of the invention provides a relationship extraction method and device based on a tree-type capsule network, relates to the field of character processing, and can improve the accuracy ofrelationship extraction. According to the technical scheme, the method comprises the steps that all words in a text to be recognized are encoded through a sequence encoder, a word vector matrix is obtained, and the word vector matrix comprises word vectors obtained after all the words are encoded; and splicing the embedded representations of the two specified entities in the to-be-identified textand the embedded representation of the to-be-identified text to serve as sequence sentence embedded representations. Wherein the phrase structure tree of the to-be-recognized text is encoded by utilizing the tree-type capsule network to obtain a structure sentence embedding representation, the phrase structure tree is used for representing a syntactic structure of the to-be-recognized text, and each leaf node of the phrase structure tree corresponds to one word of the to-be-recognized text. And determining a relationship category between the two specified entities according to the sequence sentence embedding representation and the structure sentence embedding representation.

The invention relates to a light and flowing water landscape ground. The light and flowing water landscape ground comprises a ground groove formed in the ground, a fluorescent glass lamp is inserted in the ground groove and provided with a glass lampshade, a fluorescent rod is inserted in the glass lampshade, a supplementary lighting lamp inserting groove is formed in the bottom of the glass lampshade, a supplementary lighting lamp is inserted in the supplementary lighting lamp inserting groove, an electric inserting groove is formed in the bottom of the glass lampshade, a conductive piece connected with the supplementary lighting lamp through a wire is arranged in the electric inserting groove, a plastic painting is laid on the bottom surface where the ground groove is located and made of waterproof, corrosion-resistant and transparent materials, a green hill and tree pattern is drawn on the plastic painting, a glass channel is laid on the plastic painting and made of high-strength colorless and transparent glass, a communication cavity is arranged inside the glass channel, a connecting protruding part is arranged at one end of the glass channel and is of a cuboid structure overall, a connecting groove is formed in the other end of the glass channel and is of a cuboid structure, and the connecting protruding part and the connecting groove are the same in size. The light and flowing water landscape ground has the advantages of being reasonable in structure, rich in fun and beautiful in appearance.

The invention discloses an energy statistical method capable of configuring a tree structure. The method comprises the following steps: a, constructing an energy consumption unit statistical tree based on a hierarchical relationship of energy statistical units; b, constructing an energy pedigree tree factory model based on the distribution condition of the energy statistical instruments; c, configuring a matching relationship between the energy consumption unit statistical tree and the energy pedigree tree factory model; and d, collecting measurement data of all energy statistical instruments in the energy pedigree tree factory model, and counting energy consumption data of each level or nodes of the level in the energy consumption unit statistical tree according to the matching relationship in the step c. According to the invention, a configurable solution is provided for a user according to a changing factory environment, and the cost of secondary investment is reduced.

The invention discloses a tree-shaped framework ion liquid with a structural formulas as follows in the specification wherein X<-> is PF6<->, BF4<->, Cl<->, Br<->, CH3COO<->, CF3SO3<->, CF3COO<-> or NO3<->. The invention discloses a novel variety of the ion liquid; and moreover, the preparation process is simple and easy to implement, the reaction conditions are gentle, and the yield is relatively high, so that the preparation method is suitable for industrial application.

The invention discloses a cultivation method of a ligustrum lucidum modeling tree. The cultivation method comprises the following steps of step 1, optimally selecting stumps; step 2, field planting and trunk cutting; step 3, maintaining the stump bodies; step 4, manufacturing a tray; 5, fixing the tray; step 6, directionally preserving branches; step 7, cultivating cloud sheets; and step 8, maintaining the cloud sheet, and comprehensive maintenance of the modeling tree. After the method is applied for 2.5-3 years, a common ligustrum lucidum arbor tree type can be cultivated into a large landscape modeling tree with 10-30 cloud sheets through a cultivation technology, the cultivated ligustrum lucidum modeling tree is unique and attractive in tree type, the landscape effect is more prominent, the economic value is greatly improved, and the market application value is great.

An obstacle avoidance type forest fruit picking clamping mechanism is installed on a picking rack and comprises a clamping assembly for clamping tree trunks and a vibration generator which is installed on the clamping assembly and drives the clamping assembly to vibrate. The clamping assembly comprises a telescopic clamping movable rod, a front clamping jaw, a rear clamping jaw and a clamping hydraulic rod, wherein the front clamping jaw is installed on the clamping movable rod and can move along with stretching and retracting of the clamping movable rod, the rear clamping jaw is installed on the clamping movable rod and arranged behind the front clamping jaw, and the clamping hydraulic rod is installed on the clamping movable rod and drives the clamping movable rod to stretch and retract. The front clamping jaw and the rear clamping jaw are staggered to form an included angle along with the extension of the clamping movable rod, and the front clamping jaw rotates to be aligned with the rear clamping jaw and get close to the rear clamping jaw along with the shortening of the clamping movable rod so as to clamp a tree trunk. The device has an obstacle avoidance function, is suitable for clamping, vibrating and picking fruit trees with irregular tree shapes and difficulty in manual entering, realizes efficient, accurate and effective clamping, improves the vibrating and picking efficiency, and has a self-adaptive clamping function for trunks. The invention further discloses a forest fruit vibration picking method.

The invention relates to the field of fruit tree cultivation, in particular to a 2-4 cultivation mode for fruit trees, which is a brand-new cultivation mode and specifically comprises the following cultivation processes: selecting seeds and raising seedlings, planting 2 or 4 fruit trees on the same planting point according to different terrains and soil fertility, setting inter-plant inner distance and plant row distance according to the terrains, and erecting struts 7. Tree types are cultivated, and tree plants are combined to jointly construct a frame structure suitable for installing electromechanical equipment; a track for running electromechanical equipment is constructed in the frame structure, and a movable box body is hoisted below the track, so that integration of fruit trees and the electromechanical equipment is realized. The application of electromechanical equipment to fruit tree management is a brand-new farm tool application, so that the investment is low, the labor intensity of workers is greatly reduced, and the working efficiency is improved; the increase of the yield can be promoted, and the quality is improved; and a large amount of fruit wood is additionally obtained. And a lot of cost can be saved after long-term use. The method is suitable for various planting terrains and is especially suitable for mountainous regions.