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33results about How to "Reduce the number of branches" patented technology
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Method and device for extracting characters
InactiveCN101770576AReduce the number of branchesImprove recallCharacter and pattern recognitionAlgorithmComputer graphics (images)
The present invention relates to a method for extracting characters in images, which comprises the following steps: candidate break point assembles are set up aiming to all characters in the same row in images at a candidate text region, and comprise a left break point assemble and a right break point assemble; on the basis of every left break point, corresponding right break points are searched in a estimated interval to generate candidate break sets; word recognition is made for the candidate break sets; and the recognition results of the candidate break sets are filtered by recognition price according to the positions of the candidate break sets. The present invention also discloses a device for extracting the characters in the images.
Owner:北京新岸线网络技术有限公司
Six-freedom-degree parallel mechanism with reversible moving platform
ActiveCN111331580AImplement the function of flippingVarious ways of workingProgramme-controlled manipulatorWorking environmentEngineering
The invention relates to a six-freedom-degree parallel mechanism with a reversible moving platform. The six-freedom-degree parallel mechanism comprises a fixed platform, a moving platform, a first branched chain, a second branched chain, a third branched chain and a fourth branched chain. One end of each of the three branched chains is connected to the moving platform with a sliding groove, and the other end of each branched chain is connected to the fixed platform; and one end of the rest branched chain is connected to the fixed platform in an annular structure, the other end of the rest branched chain is connected to the moving platform through a spherical hinge, and the whole branched chain can rotate around the moving platform and other branched chains without interference. The six-freedom-degree parallel mechanism with the reversible moving platform has the advantages that the relative position of the branched chains is changed through the compound motion of each branched chain, the function of overturning the moving platform is realized, and the upper surface and the lower surface of the moving platform can alternately work, such that the working space is enlarged, and the working mode of the mechanism is enriched; and the four branched chains are used for controlling the mechanism to maintain six degrees of freedom, the number of the branched chains is reduced on the premise of ensuring the working performance, the structure is simplified, and the assembly is simpler and more convenient. The six-freedom-degree parallel mechanism with the reversible moving platform can be applied to working environments such as flight simulation which need multiple degrees of freedom and high precision.
Owner:CIVIL AVIATION UNIV OF CHINA
Binary vector construction method for improving corn amylose content by utilizing genetic engineering
InactiveCN103484494AReduced number of branchesIncrease the relative contentClimate change adaptationVector-based foreign material introductionGenetic engineeringGene expression
The invention discloses a binary vector construction method for improving corn amylose content by utilizing genetic engineering. The binary vector construction method comprises: designing a primer to amplify the ninth extron and intron part sequence (315bp) and the ninth extron antisense sequence (155bp), and also to amplify sbe2b promoter, simultaneously linking an integrated DNA fragment containing sense and antisense extrons and introns and the promoter into multiple cloning sites (MCS) of a pCAMBIA3301 carrier; and then replacing 35S and GUS fragments of the pCAMBIA3301 carrier containing sbe2b RNAi three fragments in MCS by a ss1 promoter fragment and a ss1 gene cDNA fragment, so that the expression carrier contains both antisense sbe2b cDNA fragment controlled by sbe2b promoter and ss1 full-length cDNA fragment controlled by ss1 promoter. The sbe2b RNAi fragment contained in the expression carrier provided by the invention is capable of reducing activity of SBEIIb enzyme and reducing branch number when starch is synthesized, and thus the relative content of amylose is improved; and also the ss1 gene expression fragment contained in the carrier is capable of improving the activity of corn endosperm SSI enzyme, and thus the total starch content is improved.
Owner:SICHUAN AGRI UNIV
Ternary fluorine-containing resin as well as preparation method and application thereof
ActiveCN105153349AImprove hydrophilicityReduce pollutionSemi-permeable membranesNon-woven fabricsOligomerCarvacryl acetate
The invention relates to ternary fluorine-containing resin as well as a preparation method and an application thereof. The fluorine-containing resin is a trifluoropropene terpolymer and has a structure shown in formula (I), supercritical carbon dioxide is used as a medium, a perfluoroalkoxy peroxide oligomer is used as an initiator to initiate copolymerization of vinyl acetate and trifluoropropene, and then part of ester groups are hydrolyzed. A fluorine-containing hollow fiber membrane with the lasting hydrophilic property is prepared by general hollow fiber membrane preparation equipment with a dry-wet method to be used as a water separation membrane, the hydrophilic property of the separation membrane is improved greatly, the adsorption to substances such as protein and the like in the separation process is reduced, and the anti-pollution capacity of the membrane is improved.
Owner:UNIV OF JINAN
Application of UB2/UB3 gene in regulation and control of corn multi-spike development
ActiveCN110577964ADecreased number of tassel branchesReduce the number of branchesPlant peptidesFermentationBiotechnologyDouble mutation
The invention discloses application of a UB2 / UB3 gene in regulation and control of corn multi-spike development, and particularly relates to application of UB2 and UB3 gene double mutation in regulation and control of corn multi-spike development. According to the invention, gene editing is carried out on two targets UB2 and UB3 in corn by using a CRISPR / Cas9 transgenic technology, so that the target site of the UB2 gene has deletion of a basic group to cause frameshift mutation and deletion of large fragments of the UB3 gene. Results show that the tassel branch number of UB2 and UB3 double mutant plants is reduced, the increase of the spike number of the UB2 and UB3 double mutants is observed for the first time, new female spikes grow on spike stalks of main spikes, the multi-spike property is shown, auxiliary meristem at the lower part is also derepressed to be developed into female spikes, and phenotypes with increased aerial roots are accompanied; and it shows that after the UB2 gene and the UB3 gene are knocked out, a corn mutant plant can show a multi-spike phenotype. The invention provides a theoretical basis for genetic improvement of the corn multi-spike property has a large application prospect.
Owner:SOUTH CHINA AGRI UNIV
Glucan for preventing and treating hypertension and orally-taken yeast cell wall extract
InactiveCN109793752ARepair immunityPromote absorptionOrganic active ingredientsMetabolism disorderIntestinal absorptionGlucan
The invention relates to glucan for preventing and treating hypertension and orally-taken yeast cell wall extract. The component, for preventing and treating hypertension, of the glucan is a beta-1,3-1,6 glucan unit with a specific branch structure. The glucan is obtained by orally taking the yeast cell wall extract, the yeast cell wall extract contains 75-95% of beta-1,3-1,6 glucan, the branch chain of the glucan is of a long branch chain structure, the content of the branch-chain glucose accounts for 18% or above of the total quantity of the glucan, a person orally takes 0.005-0.05g / kg bodyweight of the yeast cell wall extract every day during hypertension prevention and treatment, the effect can be seen in one month, and the person needs to continuously take the yeast cell wall extractfor at least 6 months. The glucan has a definite and stable hypertension prevention and treatment effect, the orally-taken yeast cell wall extract can be absorbed by the intestinal tract to allow thehuman body to obtain the beta-1,3-1,6 glucan branch structure, in-vivo lesions which can be detected or cannot be detected can be treated in a broad spectrum manner, and an evident prevention and treatment effect is achieved.
Owner:石雨
Radiofrequency signal response method, responder and radio frequency recognition system
InactiveCN101458760AReduce processing loadImprove performanceSensing record carriersResponse methodComputer science
The invention relates to a radio frequency signal response method, a responder and a radio frequency recognition system, belonging to the radio frequency recognition technical field. The radio frequency signal response method comprises: receiving a failure command from an interrogator; judging if the value of a counter of the responder is an answer value, if it is the answer value, generating a random number in the range appointed by the failure command; judging if the generated random number is a preset value, if it is not, refreshing the value of the counter in the responder, while the refreshed value of the counter of the responder is different from the prior value of the counter in the responder queue; if it is a preset value, holding the value of the counter of the responder. The technical scheme can avoid changing the value of the counter of the responder, while the value is not the answer value, to reduce the processing load of the responder and improve the performance of the radio frequency recognition system.
Owner:HUAWEI TECH CO LTD
Method and device for configuring web request
ActiveCN111756804AReduce the number of branchesFast integrationTransmissionSoftware engineeringWeb container
The invention provides a method and device for configuring a web request. The method comprises the steps: acquiring the web request, recognizing whether the web request uses a default protocol or not,if not, configuring the current request according to a set format, and during system compiling and packaging, reading a configuration file, and writting read data into a given directory of a corresponding project; installing and deploying the system to a server, and starting web container service; when looging in a web terminal, searching for a configuration file under a given directory of a project, reading the file, initializing file data into a memory, and defining a hash table for storage; and monitoring a web request initiated by a client, determining a protocol type, and forwarding therequest according to the protocol type. Only one system code needs to be maintained, the customization requirements of different clients are met, the number of code branches and the development costof company maintenance personnel are reduced, in the development process, the rapid adaptation process can be completed according to the requirements of manufacturers, and the working efficiency is improved.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
Parallel-connection mechanism including suitable constraint branched chain and compound driving branched chain
ActiveCN112238443ALarge working spaceReduce the number of branchesProgramme-controlled manipulatorPhotovoltaic energy generationControl engineeringControl theory
The invention discloses a parallel-connection mechanism including a suitable constraint branched chain and a compound driving branched chain. The parallel-connection mechanism comprises a fixed platform, a moving platform, a first branched chain, a second branched chain and a third branched chain, wherein the parallel-connection mechanism has a freedom degree of transitional motion at three timesand rotation at two times. The parallel-connection mechanism disclosed by the invention has the advantages that firstly, through arrangement of two groups of driving assemblies, compound driving of the branched chain is realized, so that the quantity of branched chains is reduced, interference is reduced, and a working space of the mechanism is widened; and with comparison with a conventional compound driving way such as the way of directly driving revolute pairs, the compound driving way mentioned in the invention has the advantage that the control difficulty is reduced; secondly, by adoptingcooperation between a suitable constraint active branched chain and the compound driving branched chain, the mechanism is wholly plane-symmetrical, uncontrolled errors of the moving platform can be effectively reduced, the kinematics and the kinetics performance of the plane-symmetry can be achieved, and the isotropic performance is improved; and finally, the compound driving branched chain selects a plate-shaped rod, and by comparing with a conventional telescopic rod, the plate-shaped rod adopted by the mechanism disclosed by the invention can enhance the radial rigidity of the branched chains, enhance the bearing capacity of the mechanism, and improve the motion stability.
Owner:CIVIL AVIATION UNIV OF CHINA
Four-degree-of-freedom parallel mechanism with large-angle-torsion movable platform and composite branched chains
ActiveCN112454337AReduce mutual interferenceEnsure degrees of freedomProgramme-controlled manipulatorEngineeringMachining
The invention provides a four-degree-of-freedom parallel mechanism with a large-angle-torsion movable platform and composite branched chains. The four-degree-of-freedom parallel mechanism comprises afixed platform, a movable platform, a first branch chain, a second branch chain and a third branch chain, and has two translational of freedom and two rotational degrees of freedom. The four-degree-of-freedom parallel mechanism with the large-angle-torsion movable platform and the composite branched chains has the advantages that firstly, by adopting the configuration mode of a lead screw and an electric push rod composite branched chain, the number of the branched chains of the mechanism is reduced while the degree of freedom required by the mechanism is met, the mutual interference among thebranched chains is reduced, and the working space of the mechanism is increased; secondly, a movable platform structure with a hollow middle part is adopted, double rotating accessories on the movable platform are matched, and under the mutual movement of the branch chains, the large-angle-torsion of the movable platform exceeding 180 degrees can be realized; and finally, the structures of the two branched chains are completely the same, the structure is simple, and the manufacturing cost is saved while the manufacturing and machining difficulty is reduced.
Owner:CIVIL AVIATION UNIV OF CHINA
Four-degree-of-freedom complete decoupling compound drive parallel mechanism
ActiveCN112518721ASimplify theoretical analysis and control system developmentReduce the number of branchesProgramme-controlled manipulatorKinematic pairMechanical engineering
The invention discloses a four-degree-of-freedom complete decoupling compound drive parallel mechanism. The four-degree-of-freedom complete decoupling compound drive parallel mechanism comprises a base, a movable platform, a first branch chain, a second branch chain and a third branch chain, and has three translational degrees of freedom and one rotational degree of freedom. The four-degree-of-freedom complete decoupling compound drive parallel mechanism has the following advantages that each of four degrees of freedom of the mechanism is completely controlled by a single kinematic pair, so that complete decoupling is realized, and theoretical analysis of the mechanism and development of a control system are greatly simplified; the branch chains of the mechanism on a machine frame adopt two driving pairs and adopt composite driving, so that the number of the branch chains is reduced, the interference among the branch chains is avoided, the number of parts is reduced, and the manufacturing cost is further reduced; and the mechanism adopts a double-parallelogram branch chain to replace a common multi-revolute-pair decoupling branch chain, so that the motion stability is improved, andthe rigidity of the mechanism is improved.
Owner:CIVIL AVIATION UNIV OF CHINA
Construction method of high-yield early-fruiting cedar dwarf clonal seed orchard
The invention discloses a construction method of a high-yield early-fruiting cedar dwarf clonal seed orchard, and belongs to the technical field of forestry. The construction method comprises the steps as follows: genetic management of the seed orchard, selection of excellent orchard construction clones, construction of a clonal seed orchard and management of seed orchard tree bodies and orchard plots. Compared with the prior art, the construction method disclosed by the invention has the beneficial effects that the method can make a cedar improved seed base put into production in advance, increase the seed yield, ensure timely supply of improved seeds, and accelerate the production and breeding process of the cedar improved seeds.
Owner:RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
Method for controlling extension of lateral branches of cut chrysanthemum
ActiveCN108496613AInhibition of germinationPrevent elongationSaving energy measuresHorticulture methodsAxillary budDensity ratio
The invention relates to a method for controlling extension of lateral branches of cut chrysanthemum. The method is that before axillary buds of the cut chrysanthemum are not fully extended, a light density ratio of red light to far red light in an illumination environment is adjusted to (0.05-0.80):1, and the above ratio is kept until the cut chrysanthemum firstly blooms. According to the methodprovided by the invention, a light quality ratio is adjusted by a physical method, synthesis and signal transduction of main hormones regulating and controlling branching in chrysanthemum plants are changed, so that expression of related genes controlling the extension of the lateral branches is changed, especially expression of a key integration factor DgBRC1 controlling dormancy and extension ofthe lateral branches is changed, and finally the extension of the lateral branches of the chrysanthemum is affected; and the method effectively solves the prominent problem that artificial and continuous bud picking is needed because the lateral branches are too long and too more in the production process of the cut chrysanthemum, greatly saves labor costs, is simple and easy to implement, has high practicability and is easy to promote.
Owner:BEIJING FORESTRY UNIVERSITY
A Parallel Mechanism Containing Multiple Slide Rails and Composite Branch Chains
ActiveCN112621716BLess interferenceReduce the number of branchesProgramme-controlled manipulatorControl engineeringControl theory
A parallel mechanism with multiple slide rails and composite branch chains. It includes a base, a moving platform, a first compound drive branch, a second compound drive branch and a third compound branch, and the mechanism has three degrees of freedom of rotation and two translations. The advantages of the present invention: the use of two composite drive branch chains and one composite branch chain can effectively reduce the number of branch chains of the mechanism, reduce the interference between the branch chains during the operation of the mechanism, and at the same time, the cooperation of multiple branch chains can improve the flexibility of the mechanism ;Using multiple slide rails to connect and drive, which can maintain the stability of the operation of the mechanism and improve the execution accuracy of the end effector on the moving platform; The connection method of two identical branch chains and three identical slide rails is convenient for processing, manufacturing and replacement, reducing the cost of The cost is beneficial to save resources; the redundant structure can avoid singularity when the moving platform rotates, and ensure the accuracy of the mechanism operation.
Owner:CIVIL AVIATION UNIV OF CHINA
Application of ub2/ub3 Genes in Regulating the Development of Multiple Ears in Maize
ActiveCN110577964BDecreased number of tassel branchesReduce the number of branchesPlant peptidesFermentationBiotechnologyDerepression
The invention discloses the application of UB2 / UB3 genes in regulating the development of multiple ears of corn, specifically the application of double mutations of UB2 and UB3 genes in regulating the development of multiple ears of corn. The present invention uses CRISPR / Cas9 transgenic technology to edit the genes of UB2 and UB3 in corn, so that the target site of UB2 gene has a base deletion, resulting in a frameshift mutation, while the UB3 gene is a large fragment Deleted; the results showed that the number of tassel branches in UB2 and UB3 double mutant plants decreased, and it was observed for the first time that the UB2 and UB3 double mutant had an increase in the number of ears, and a new ear grew on the peduncle of the main ear, showing Multi-eared, the lower axillary meristems are also derepressed to develop into ears, and accompanied by the phenotype of increased aerial roots; it shows that after knocking out the UB2 and UB3 genes, the maize mutant plants can show a multi-eared phenotype, The invention provides a theoretical basis for the genetic improvement of corn multiple ears, and has great application prospects.
Owner:SOUTH CHINA AGRI UNIV
Outdoor robot relocation method based on Go-ICP
PendingCN113268697AReduce relocation search timeNarrow searchComplex mathematical operationsAlgorithmEngineering
The invention discloses an outdoor robot repositioning method based on Go-ICP. The method comprises the steps of obtaining an existing Go-ICP algorithm; modifying a lower bound used for pruning; in the branching process, the lowest resolution is stipulated, and the number of branches is reduced; if positioning is lost in positioning, calculating a repositioning search range and performing repositioning; and adopting the modified Go-ICP algorithm to carry out real-time repositioning of the outdoor robot. According to the method, a cubic search area of the Go-ICP algorithm is converted into a flat cuboid search area, and the search range of the Z axis is reduced; the number of branches of the Go-ICP algorithm is reduced; the relocation search range of the Go-ICP algorithm is determined according to the basic search range, the lost location time and the drift coefficient of the corresponding rotation or translation component, so that the relocation search time based on the Go-ICP algorithm is greatly shortened, the efficiency is high, the search time is short, and the search range is reasonable and reliable.
Owner:长沙金维信息技术有限公司
Low-power-consumption high-transient-response low-dropout linear regulator without off-chip capacitor
PendingCN114840051AReduce the number of polesIncrease slew rateEnergy efficient computingElectric variable regulationCapacitanceHarmonic impedance
The invention discloses a low-power-consumption, high-transient-response and off-chip-capacitor-free low-dropout linear regulator. A grid direct-current bias network is used for providing grid bias voltage needed by working of a power amplification transistor. The drain direct-current bias network is used for providing drain bias voltage required by the work of the power amplification transistor; the input end impedance matching network comprises a microstrip line, a blocking capacitor and an RC parallel circuit; the output end impedance matching network comprises a harmonic control network and an elliptical low-pass filtering matching network, and the harmonic control network selects two frequency points outside a passband to perform secondary harmonic control; the elliptic low-pass filtering matching network is obtained by improving a six-order Chebyshev low-pass filter, two transmission zero points are generated outside a working frequency band, and conversion from fundamental wave impedance to second harmonic impedance is achieved. According to the invention, the power amplifier can realize high efficiency and high gain in a super-quintuple frequency working bandwidth.
Owner:HANGZHOU DIANZI UNIV FUYANG ELECTRONIC INFORMATION RES INST CO LTD +1
Selection mechanism for connecting rod sliding reversing
ActiveCN104315094ASimple and efficient operationReduce the number of rod branchesGearingClutchEngineering
The invention discloses a selection mechanism for connecting rod sliding reversing. The selection mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a driven rod and a steering mechanism, wherein the driving rod is simultaneously hinged to the first connecting rod and the second connecting rod; the middle of the first connecting rod is hinged to a fixed bracket, and the other end of the first connecting rod is hinged to the third connecting rod; the other end of the third connecting rod and the other end of the second connecting rod are crossed and are simultaneously connected with the steering mechanism; the steering mechanism comprises a main node, a first welding body and a second welding body are arranged on the two sides of the main node, the outer sides of the first welding body and the second welding body are respectively connected with a first clutch rotating disc and a second clutch rotating disc, a first through hole for the third connecting rod to pass through is formed in the first clutch rotating disc, and a second through hole for the second connecting rod to pass through is formed in the second clutch rotating disc; shaft locking devices are respectively arranged in the first through hole and the second through hole. The selection mechanism has the benefits that the reversing can be realized by the rods, the operation is simple and convenient, and the selection mechanism can be used on a device of which a rod is required for reversing.
Owner:GUANGXI UNIV
N-x fast topology analysis method and system and readable storage medium
PendingCN114678846AImprove computing efficiencyReduce the number of nodes and branchesEmergency protective circuit arrangementsAc network circuit arrangementsComputational modelOnline analysis
The invention discloses an N-x rapid topology analysis method and system and a readable storage medium, and the method carries out the classification processing of different switching-on and switching-off power grid equipment, does not need to carry out the whole network topology analysis once again when one piece of equipment is switched on and off, can judge which type of topology change the switching-on and switching-off belongs to in advance when a line, a transformer and a unit are switched on and off, and improves the efficiency. According to the method, unnecessary repeated topology analysis can be greatly reduced, only local modification is needed, and the calculation efficiency is improved; according to the method, the number of nodes and the number of branches needing to be searched for in topology analysis are greatly reduced, a new calculation model can be constructed according to splitting of an original node branch calculation model, and the efficiency of complex fault topology analysis and online analysis calculation is effectively improved.
Owner:CHINA ELECTRIC POWER RES INST +4
A four-degree-of-freedom parallel mechanism with a large-angle twistable moving platform and a composite branch
ActiveCN112454337BReduce mutual interferenceEnsure degrees of freedomProgramme-controlled manipulatorEngineeringTwo degrees of freedom
A four-degree-of-freedom parallel mechanism with a large-angle twistable moving platform and a composite branch chain. It includes a fixed platform, a moving platform, a first branch chain, a second branch chain and a third branch chain, and has two degrees of freedom in translation and rotation. Advantages of the present invention: First, the configuration mode of the composite branch chain of the lead screw and the electric push rod is adopted, while ensuring that the required degree of freedom of the mechanism is satisfied, the number of branch chains of the mechanism is reduced, and the distance between the branch chains is reduced. Interfere with each other and increase the working space of the organization. Secondly, the movable platform structure with hollow in the middle is adopted, and with the double rotating accessories on the movable platform, under the mutual movement of each branch chain, the movable platform can be twisted at a large angle of more than 180 degrees. Finally, there are two branched chains with the same structure and simple structure, which reduces the difficulty of manufacturing and processing and saves the manufacturing cost.
Owner:CIVIL AVIATION UNIV OF CHINA
A kind of ternary fluorine-containing resin and its preparation method and application
ActiveCN105153349BImprove hydrophilicityReduce pollutionSemi-permeable membranesNon-woven fabricsPolymer scienceOligomer
The invention relates to ternary fluorine-containing resin as well as a preparation method and an application thereof. The fluorine-containing resin is a trifluoropropene terpolymer and has a structure shown in formula (I), supercritical carbon dioxide is used as a medium, a perfluoroalkoxy peroxide oligomer is used as an initiator to initiate copolymerization of vinyl acetate and trifluoropropene, and then part of ester groups are hydrolyzed. A fluorine-containing hollow fiber membrane with the lasting hydrophilic property is prepared by general hollow fiber membrane preparation equipment with a dry-wet method to be used as a water separation membrane, the hydrophilic property of the separation membrane is improved greatly, the adsorption to substances such as protein and the like in the separation process is reduced, and the anti-pollution capacity of the membrane is improved.
Owner:UNIV OF JINAN
Cancer prevention and treatment glucosan and yeast cell wall extract for oral administration
InactiveCN109879983APromote absorptionSmall molecular weightPowder deliveryOrganic active ingredientsCancer preventionCarcinoembryonal antigen
The invention relates to cancer prevention and treatment glucosan and a yeast cell wall extract for oral administration. The cancer prevention and treatment functional ingredients of the glucosan arebeta-1,3-1,6-glucosan units with specific branch structures; the glucosan is obtained in a mode of orally taking the yeast cell wall extract; the yeast cell wall extract contains 75 to 95 percent of beta-1,3-1,6-glucosan; the glucosan branch chains are of long branch chain structures; the content of the branch chain glucosan accounts for 18 percent or higher of the total quantity of the glucosan;when the glucosan is used for preventing and treating the cancer; the oral administration dose every day is 0.01 to 0.2 g / kg body weight; the duration is at least 10 months. The invention provides theglucosan structure with exact and stable anticancer effects; the yeast cell wall extract capable of being orally taken and capable of being finally absorbed through intestinal tracts to obtain the beta-1,3-1,6-glucosan branch unit is provided. When the glucosan is matched with conventional operation, radiotherapy and chemotherapy, a patient can obtain the treatment effect of recovering the carcino-embryonic antigen to the normal people level to the optimum degree.
Owner:石雨
A fully decoupled compound drive parallel mechanism with four degrees of freedom
ActiveCN112518721BSimplified theoretical analysisAchieve decouplingProgramme-controlled manipulatorControl systemThree degrees of freedom
A fully decoupled compound drive parallel mechanism with four degrees of freedom. It includes a base, a moving platform, a first branch chain, a second branch chain and a third branch chain, and the mechanism has three degrees of freedom of translation and one rotation. The invention has the following advantages: each of the four degrees of freedom of the mechanism is completely controlled by a single motion pair, which realizes complete decoupling, and greatly simplifies the theoretical analysis of the mechanism and the development of the control system; the branch chain of the mechanism on the frame Two active pairs are adopted, and a composite drive is adopted, which reduces the number of branches, avoids the interference between the branches, reduces the number of parts, and further reduces the manufacturing cost; the mechanism adopts a double parallelogram branch chain, which replaces the general chain. The multi-rotation pair decouples the branch chain, which increases the motion stability and improves the rigidity of the mechanism.
Owner:CIVIL AVIATION UNIV OF CHINA
A Selection Mechanism for Connecting Rod Push-Pull Reversing
The invention discloses a selection mechanism for connecting rod sliding reversing. The selection mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a driven rod and a steering mechanism, wherein the driving rod is simultaneously hinged to the first connecting rod and the second connecting rod; the middle of the first connecting rod is hinged to a fixed bracket, and the other end of the first connecting rod is hinged to the third connecting rod; the other end of the third connecting rod and the other end of the second connecting rod are crossed and are simultaneously connected with the steering mechanism; the steering mechanism comprises a main node, a first welding body and a second welding body are arranged on the two sides of the main node, the outer sides of the first welding body and the second welding body are respectively connected with a first clutch rotating disc and a second clutch rotating disc, a first through hole for the third connecting rod to pass through is formed in the first clutch rotating disc, and a second through hole for the second connecting rod to pass through is formed in the second clutch rotating disc; shaft locking devices are respectively arranged in the first through hole and the second through hole. The selection mechanism has the benefits that the reversing can be realized by the rods, the operation is simple and convenient, and the selection mechanism can be used on a device of which a rod is required for reversing.
Owner:GUANGXI UNIV
A Parallel Mechanism Containing Composite Sliding Telescopic Rods
ActiveCN112247966BReduce the number of branchesIncrease flexibilityProgramme-controlled manipulatorEngineeringWorking space
A parallel mechanism with composite sliding telescopic rods. It includes a fixed platform, a moving platform, a first branch chain, a second branch chain, a third branch chain and a fourth branch chain, and has three translational and two rotational degrees of freedom. The invention has the advantages: on the one hand, the use of compound sliding telescopic rod branches reduces the number of branch chains of the mechanism and reduces interference, thereby increasing the flexibility of the mechanism and expanding the working space of the mechanism, so that the mechanism can complete the expansion and contraction relative to a single mechanism. The movement of the rod mechanism is more complex; on the other hand, the use of three sliding telescopic rod branches with the same structure can increase the transmission efficiency of the mechanism in the vertical direction, and the structure is simple, the assembly is simple, and the difficulty of manufacturing and processing is reduced. The present invention is suitable for processing environments that require multiple degrees of freedom and high flexibility, such as parts processing and assembly.
Owner:CIVIL AVIATION UNIV OF CHINA
Parallel mechanism with composite sliding telescopic rod
ActiveCN112247966AReduce the number of branchesIncrease flexibilityProgramme-controlled manipulatorStructural engineeringMachining
The invention discloses a parallel mechanism with a composite sliding telescopic rod. The parallel mechanism with the composite sliding telescopic rod comprises a fixed platform, a movable platform, afirst branch chain, a second branch chain, a third branch chain and a fourth branch chain, and has three translational degrees of freedom and two rotational degrees of freedom. The parallel mechanismwith the composite sliding telescopic rod provided by the invention has the advantages that on one hand, the composite sliding telescopic rod branch chains are adopted, the number of the branch chains of the mechanism is reduced, and interference is reduced, so that the flexibility of the mechanism can be improved, the working space of the mechanism is enlarged, and the mechanism can complete more complex movement relative to a single telescopic rod mechanism; and on the other hand, the three sliding telescopic rod branch chains with the same structure are adopted, so that the transmission efficiency of the mechanism in the vertical direction can be improved, the structure is simple, assembling is easy and convenient, and the manufacturing and machining difficulty is lowered. The parallelmechanism with the composite sliding telescopic rod provided by the invention is suitable for part machining and assembling and other machining environments needing multi-degree-of-freedom and high flexibility.
Owner:CIVIL AVIATION UNIV OF CHINA
A parallel mechanism containing a binding and composite driver chain
ActiveCN112238443BLarge working spaceReduce the number of branchesProgramme-controlled manipulatorPhotovoltaic energy generationIn planeEngineering
A parallel mechanism with just-constrained and compound actuated branches. It includes a fixed platform, a moving platform, a first branch chain, a second branch chain and a third branch chain, and has three degrees of freedom of translation and two rotations. Advantages of the present invention: First, the composite drive of the branched chain is realized through two sets of driving components, which reduces the number of branched chains, reduces interference, and increases the working space of the mechanism. Compared with conventional composite driving methods such as direct driving of rotating pairs, the control Secondly, the combination of the just-constrained active branch chain and the composite drive branch chain makes the mechanism as a whole in plane symmetry, which can effectively reduce the uncontrollable error of the moving platform, obtain plane-symmetric kinematics and dynamic performance, and improve the Compared with the conventional telescopic rod, the radial rigidity of the branch chain can be strengthened, the bearing capacity of the mechanism can be increased, and the motion stability can be improved.
Owner:CIVIL AVIATION UNIV OF CHINA
A method and device for configuring web requests
Owner:SUZHOU METABRAIN INTELLIGENT TECH CO LTD
A method for controlling the elongation of side branches of cut chrysanthemum
ActiveCN108496613BInhibition of germinationPrevent elongationSaving energy measuresHorticulture methodsAxillary budCut flowers
The invention relates to a method for controlling extension of lateral branches of cut chrysanthemum. The method is that before axillary buds of the cut chrysanthemum are not fully extended, a light density ratio of red light to far red light in an illumination environment is adjusted to (0.05-0.80):1, and the above ratio is kept until the cut chrysanthemum firstly blooms. According to the methodprovided by the invention, a light quality ratio is adjusted by a physical method, synthesis and signal transduction of main hormones regulating and controlling branching in chrysanthemum plants are changed, so that expression of related genes controlling the extension of the lateral branches is changed, especially expression of a key integration factor DgBRC1 controlling dormancy and extension ofthe lateral branches is changed, and finally the extension of the lateral branches of the chrysanthemum is affected; and the method effectively solves the prominent problem that artificial and continuous bud picking is needed because the lateral branches are too long and too more in the production process of the cut chrysanthemum, greatly saves labor costs, is simple and easy to implement, has high practicability and is easy to promote.
Owner:BEIJING FORESTRY UNIVERSITY
Voice wake-up method and device, storage medium and electronic equipment
PendingCN113327611AReduce false wakeupsReduce the number of branchesSpeech recognitionTelecommunicationsReal-time computing
The invention relates to a voice wake-up method and device, a storage medium and electronic equipment, and aims to reduce false wake-up and system operation overhead. The voice wake-up method comprises the steps of acquiring multiple paths of voice signals; inputting the multiple paths of voice signals into a voice wake-up model to obtain voice wake-up results corresponding to the multiple paths of voice signals, wherein voice wake-up model is used for determining signal weight values corresponding to the multiple paths of voice signals, and according to the signal weight values corresponding to the multiple paths of voice signals, performing fusion processing on the multiple paths of voice signals to obtain a target voice signal, and according to the target voice signal, determining a voice wake-up result corresponding to the multiple paths of voice signals.
Owner:BEIJING YOUZHUJU NETWORK TECH CO LTD
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