826results about How to "Process stability" patented technology

The invention relates to the technical field of task allocation, in particular to a task allocation method for flexible employment. According to the technical scheme, the method comprises the following steps that a database of related information of tasks and employees is constructed, wherein the database comprises detailed information of the tasks and comprehensive information of the employees; respectively constructing a task model and an employee portrait based on the information in the database; and matching the task with the employee through an intelligent matching algorithm, wherein the intelligent matching algorithm comprises matching algorithm selection and optimization, real-time matching and dynamic adjustment, and multi-objective optimization and tradeoff. According to the method, multiple matching algorithms are combined for optimization, weights are selected and adjusted according to tasks and employee characteristics, accurate matching is achieved, a task model and employee portrait multi-dimension consideration adaptability is achieved, adaptive changes are matched in real time, tasks and multiple aspects of employees are optimized and balanced in a multi-objective mode, the development of rights and interests of the employees is considered, and the matching quality, the working enthusiasm and the stability are improved; flexible employment resources are managed more effectively, and the task allocation effect is improved.

The invention belongs to the technical field of intelligent electric power inspection and multi-agent cooperative control, and provides an electric power multi-agent dynamic cooperative inspection method and system, and the technical scheme is that a path planning scheme is generated by using a reinforcement learning algorithm and a large language model, so that an agent can dynamically adjust an inspection path according to real-time data and task requirements, and the inspection efficiency is improved. Therefore, the minimization of the path and the maximization of the inspection efficiency are realized, and unnecessary travel and resource consumption are reduced. Meanwhile, a dynamic task redistribution mechanism in the system ensures that the intelligent agent can quickly respond and redistribute tasks under the conditions of equipment failure, environment change or task priority adjustment. And real-time communication and data synchronization among the intelligent agents ensure information sharing, so that the system still keeps task continuity and reliability in emergency.

The invention discloses a method and a system for realizing mine communication signal improvement based on edge computing, and relates to the technical field of mine communication signal improvement, and the method comprises the following steps: integrating a real-time monitoring system on each edge node, so as to continuously detect the fluctuation of communication flow and data request quantity, the real-time monitoring system identifies a potential communication peak period by collecting real-time data and generates an early warning signal to notify a network administrator or automatically trigger a load management program. According to the invention, through the real-time monitoring and early warning system on the edge node, active monitoring and peak prediction of mine communication are realized, the overload risk caused by traffic surge is reduced, and the stability of data transmission is ensured. And intelligent scheduling and dynamic resource allocation are combined, so that efficient execution of tasks under high load is ensured, and node overload is prevented. A self-adaptive load balancing and feedback mechanism enables the system to dynamically adjust distribution, quickly respond to a bottleneck and improve self-adaptability and stability.

The invention discloses a hydropower station operation risk early warning system and method based on digital twinborn and AI image recognition. The system comprises a data acquisition module, a digital twinborn model construction module, an AI image recognition module, an early warning management module and an effect evaluation and optimization module. According to the system and the method, comprehensive monitoring of the working environment of the hydropower station is realized, and the efficiency and the accuracy of safety management are improved. Potential safety risks are warned in advance, accidents are effectively prevented, and losses are reduced. Moreover, the management and display of the work ticket are supported, thereby guaranteeing the smooth operation of the maintenance work, and preventing the violation operation. In addition, generation and guidance of an emergency response plan are provided, and the emergency response speed and effect are improved.

The invention discloses an unmanned aerial vehicle flight control method based on path constraint, and belongs to the technical field of unmanned aerial vehicle inspection, and the method comprises the steps: obtaining an inspection task and an initial flight path; monitoring a flight environment and a task state; dynamically adjusting a flight path according to the monitored data; generating an emergency flight path conforming to the current flight environment and the task state; the unmanned aerial vehicle is controlled to fly according to the emergency flight path, and the flight environment and the task state are continuously monitored during flight; the inspection task is completed and returned; according to the unmanned aerial vehicle flight control method based on the path constraint, the flight environment and the task state are monitored in real time, and the flight path is dynamically adjusted, so that the unmanned aerial vehicle can quickly respond in an emergency condition, smooth proceeding of the inspection task is ensured, and the emergency response capability is improved.

The short-process magnesium alloy wire continuous extrusion preparation method comprises the following steps that a, magnesium alloy extrusion materials are prepared, the thickness of the extrusion materials is 0.03-0.1 mm, and the length of the extrusion materials is 0.3-5 mm; b) preheating an extrusion wheel, wherein the preheating temperature is 250-500 DEG C; c) continuous extrusion: continuously introducing inert gas into an extrusion cavity, then feeding the magnesium alloy scraps into the extrusion cavity, and driving the magnesium alloy scraps to pass through an extrusion die along with rotation of an extrusion wheel to extrude a wire; and d) shaping and sizing: carrying out shaping and sizing treatment on the obtained wire material to obtain the magnesium alloy wire material with the final required diameter. According to the method, the problem of lengthy magnesium wire processing flow is solved, the problem of single type of magnesium alloy wires is solved, and the problem of efficient batch production of magnesium welding wires and wires for additive manufacturing of different component systems is solved, so that industrial production of the magnesium alloy wires is realized.

The invention provides a hovering type wireless charging control method for an electric power inspection unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. According to the technical scheme, firstly, modeling is conducted on a multi-transmitting-stage magnetic coupling type wireless electric energy transmission system, then directional constant-voltage output parameters of a wireless charging system in a coil offset state are determined, and control parameters of the wireless electric energy transmission system of the unmanned aerial vehicle are determined; on the basis, modeling is carried out for unmanned aerial vehicle power inspection power consumption and the charge state, and multi-source disturbance suppression parameters of the unmanned aerial vehicle and attitude track full-time-domain preset time control parameters of the unmanned aerial vehicle are determined. According to the method, a multi-transmitting-stage MCR-WPT system is adopted, a directional constant voltage output model is constructed, meanwhile, a charging system control strategy is optimized, and a wireless charging scheme based on an LCC-S type compensation network is designed. According to the invention, the transmission efficiency and stability of the wireless charging system of the electric power inspection unmanned aerial vehicle are improved, and the hovering wireless charging control precision of the electric power inspection unmanned aerial vehicle is improved.

The invention relates to a combined clamp which comprises a supporting column, two clamp assemblies and a pipe detection assembly. The two clamp assemblies are installed at the two ends of the supporting column, and the pipe detection assembly is installed on the supporting column. The clamp assembly comprises a support, a first clamping jaw, a second clamping jaw, a driver, a transmission assembly and a positioning assembly. The support is installed at the end of the supporting column, the first clamping jaw and the second clamping jaw are rotatably installed on the support, the driver and the transmission assembly are installed in the support, the transmission assembly is connected with the first clamping jaw and the second clamping jaw, the positioning assembly is installed on the support in a front-back sliding mode, and the positioning assembly is connected with the transmission assembly. The pipe detection assembly is connected with the driver. The combined type clamp has the beneficial effects that the combined type clamp can clamp and center pipes of different specifications, the application range is wide, the operation efficiency can be ensured, and the clamping stability and safety are higher through the two clamp assemblies arranged in parallel.

The invention discloses riboflavin photodynamic antibacterial hydrogel for a diabetes wound dressing as well as preparation and application of the riboflavin photodynamic antibacterial hydrogel, and belongs to the technical field of biomedical materials. The hydrogel is prepared from carbomer 941, rhizoma bletillae polysaccharide and carboxymethyl chitosan through physical and chemical bi-crosslinking, glutaraldehyde and carboxymethyl chitosan are added to form dynamic imine bonds, and the stability and adaptability of the hydrogel are enhanced. Meanwhile, the photosensitizer riboflavin is introduced, so that the hydrogel is endowed with photodynamic sterilization characteristics, efficient antibiosis is realized, and rapid healing of diabetic wounds is promoted. The hydrogel has excellent wound environment adaptability and adhesion performance, and is suitable for complicated wound surfaces of diabetes mellitus. The successful research and development of the invention provide reference for the development of novel photodynamic wound dressings, have wide application prospects, provide better treatment choices for diabetics, and are helpful for accelerating wound healing, reducing infection risks and improving the life quality of patients.

The invention discloses a chlorosulfonated polyethylene glove and a preparation method thereof.The chlorosulfonated polyethylene glove comprises at least one functional structure layer, and the functional structure layer is formed by adhering liquid raw materials on the surface of a shaping base layer by layer and curing the liquid raw materials; wherein the functional structure layer is any one of a gas-liquid isolating layer, an aging reinforcing layer and an anti-radiation layer. According to the chlorosulfonated polyethylene glove, any one or more than two of the gas-liquid isolating layer, the aging reinforcing layer and the anti-radiation layer are used as the functional layer, and the chlorosulfonated polyethylene glove with a specific function is formed through multi-layer compounding of an impregnation process, so that the chlorosulfonated polyethylene glove has air tightness, chemical resistance, radiation resistance, aging resistance, puncture resistance, wear resistance and the like; a long-acting gas / liquid isolation effect can be realized; meanwhile, the material types of the functional layers are various, and the layer number and the combination sequence of the functional layers can be reasonably selected and matched according to application requirements.

The invention discloses a light-weight energy-absorbing polyurethane power battery pouring sealant and a preparation method and application thereof.The preparation method comprises the steps that liquid MDI and polytetrahydrofuran glycol serve as raw materials to prepare an isocyanate-terminated polyurethane prepolymer; the polyurethane power battery pouring sealant is prepared by reacting 1, 4-butanediol through adjusting a chain extension coefficient to generate microcellular foaming polyurethane, and a microcellular structure is formed through the reaction, so that the related performance requirements of light weight, energy absorption and the like of the power battery pouring sealant are met; the polyurethane pouring sealant prepared by the invention has the advantages of light weight, and excellent energy absorption and vibration reduction performance, mechanical property, thermal stability and bonding performance; and the preparation process is simple and controllable, environment-friendly and reliable, the cost is low, the stability and safety of the power battery can be improved, the development of new energy automobiles is promoted, and the environment-friendly requirement is met.

The invention relates to the technical field of hydroelectric generators, in particular to a three-dimensional flow field load reconstruction method based on reinforcement learning of a gated circulation unit, which comprises the following steps of: establishing a Python-based finite element secondary development platform, and realizing finite element simulation and obtaining a finite element simulation result; fusing a plurality of simulation characteristic indexes extracted from the finite element simulation result by using a multi-scale model fusion algorithm to obtain a finite element simulation result evaluation index, and optimizing simulation parameters; constructing an initial three-dimensional flow field load reconstruction model based on reinforcement learning of a gated circulation unit, and training the initial three-dimensional flow field load reconstruction model by using the optimized simulation parameters; and based on the trained three-dimensional flow field load reconstruction model, obtaining a reconstructed three-dimensional flow field load. By means of the reconstruction method, automatic simulation of finite element software and full-automatic optimization iteration of a parameter decision and reinforcement learning reconstruction network in the three-dimensional flow field load reconstruction process of the hydroelectric generating set component can be achieved.

The invention provides a slope cropland fertilizing device and method, belongs to the technical field of fertilizing, and aims to solve the problem that a fertilizing device special for slope cropland is lacked in the prior art. Comprising a vehicle body, a chemical fertilizer box, a fertilizer distributor, a mixer, a fertilization angle adjusting assembly and a fertilization gun, a power device is arranged on the vehicle body, the vehicle body is driven by the power device to advance, and a handrail is fixedly arranged on the back of the vehicle body; the chemical fertilizer boxes are symmetrically and fixedly arranged on the two sides of the vehicle body, through holes are formed in the bottoms of the chemical fertilizer boxes, the through holes in the bottoms of the chemical fertilizer boxes are communicated with the fertilizer distributors, and the fertilizer distributors are used for quantitatively measuring chemical fertilizers; the bottom of the fertilizer distributor is communicated with the mixer; the fertilization angle adjusting assembly is arranged at the bottom of the vehicle body; the fertilization angle adjusting assembly is used for adjusting the fertilization angle; the fertilizing gun is mounted on the fertilizing angle adjusting assembly.

The invention relates to the technical field of metal-based composite materials, and discloses a preparation method of a silicon carbide reinforced aluminum-based composite material for electronic packaging, the method that pre-oxidation is conducted on the surfaces of silicon carbide particles first and then vacuum micro-evaporation titanium plating is conducted is adopted, the wettability with an Al matrix is obviously improved, generation of an interface reaction brittle product Al4C3 is inhibited, and the performance of the silicon carbide reinforced aluminum-based composite material is improved. Defects such as gaps in the composite material are reduced, and the mechanical property of the composite material is improved; the silicon carbide reinforced aluminum-based composite material is prepared by adopting a non-pressure infiltration method, so that the production time is obviously shortened, infiltration can be successful by taking a small amount of time, and the process is stable; the interface phase TiC / Ti5Si3-Al coating not only improves the electrical conductivity and thermal conductivity of the silicon carbide powder, but also enhances the adhesive force of the silicon carbide powder and an aluminum base; al2O3 is gradually adsorbed and deposited on the surface of the material by adopting a micro-arc oxidation process, so that the corrosion resistance of the aluminum silicon carbide composite material is enhanced, and the requirements of a contemporary packaging material on high heat dissipation and corrosion resistance can be met.

The invention discloses a concentration device capable of ensuring the stability of an organic solution, and relates to the technical field of organic matter purification, the concentration device comprises a central tower, the interior of the central tower is divided into a concentration cavity and a regeneration cavity left and right, heating devices are arranged in the concentration cavity and the regeneration cavity, one side of the concentration cavity is connected with a liquid inlet pipe, and the other side of the concentration cavity is connected with a liquid outlet pipe. The bottom is connected with a liquid outlet pipe; the first cooling tower and the second cooling tower are arranged on the left side and the right side outside the central tower respectively, condensing devices are arranged in the first cooling tower and the second cooling tower, and liquid outlet pipes are connected to the bottoms of the first cooling tower and the second cooling tower; the rotating disc system comprises rotating discs which rotate on the front surface and the rear surface in the central tower respectively and penetrate through the concentration cavity and the regeneration cavity, the two rotating discs are fixedly connected through a central shaft, and a plurality of adsorption assemblies for adsorbing organic matters are distributed between the two rotating discs around the circumference of the central shaft; according to the invention, efficient concentration and stable protection of the organic solution at low temperature are realized.

The invention relates to a high-selectivity flotation method for minerals, belongs to a flotation technology, and aims to solve at least one of the problems of poor mineral collecting effect, poor selectivity, high collecting agent consumption and the like in the conventional flotation method. According to the method, firstly, impurities on the surface of ilmenite raw ore are stripped through first-time microwave pretreatment, meanwhile, part of Fe < 2 + > on the surface of the ilmenite is converted into Fe < 3 + >, and selective adsorption of a flotation reagent on the surface of the ore is better facilitated. The fucoidin is added into the ore pulp for secondary microwave pretreatment, so that the fucoidin in the ore pulp is broken to form an inhibitor with small molecular weight, and meanwhile, the reaction activity of the fucoidin is enhanced by microwave catalysis, so that the process of selectively adsorbing the fucoidin on the surface of gangue is more stable; the effect of improving the inhibition effect can be achieved, and the using amount of the collecting agent can be effectively reduced.

The invention provides a new-generation information technology and landscaping supply chain fusion system, and belongs to the technical field of information technology and landscaping supply chain fusion. Landscaping supply chain management and data acquisition are improved in multiple aspects, data of each link are accurately acquired through multiple sensors and interfaces, manual recording errors are avoided, and the system is convenient to use. According to data analysis and processing, advanced technologies are utilized to predict growth trends and market demands, inventory management is optimized, an intelligent decision support module provides scientific purchase suggestions based on data results, an information interaction platform promotes information sharing and cooperation of all parties, and a visual monitoring module can find and process abnormities in time. The expandability and security of the system and the application of the mobile terminal adapt to development requirements, data privacy is protected, business processing is facilitated, the management efficiency and quality are integrally improved, and smooth implementation of a project is guaranteed.

The invention provides a stirrup pull-in type reinforcing mesh device and a manufacturing method thereof. The stirrup pull-in type reinforcing mesh device comprises a lifting platform, a sliding traction device arranged at the downstream of the lifting platform, a welding device arranged at the downstream of the traction device, a longitudinal bar distributing device arranged at the downstream of the welding device, a movable mesh pulling device arranged at the bottom of the longitudinal bar distributing device, and a bending device arranged at the downstream of the mesh pulling device. And a stirrup distributing device is arranged on one side of the lifting platform. The net pulling device, the traction device and the material distributing device move in a reciprocating mode, the position of the welding device is fixed, the whole net piece bending does not occupy key procedures, placing, positioning, welding and moving of longitudinal bars and stirrups can be carried out at the same time, the production efficiency is further improved, assembly line procedures are coherent, the production cost is greatly reduced, and the large popularization value is achieved.

The invention discloses soft tissue high-frequency welding equipment, and belongs to the technical field of surgical operating instruments, the soft tissue high-frequency welding equipment comprises an electrocoagulation pen main body, the electrocoagulation pen main body is connected with an insulating rod, the insulating rod is further provided with a conduction pipeline parallel to a cutter head part, and a temperature sensing unit comprises a hinting structure and a telescopic action structure. The electric resection temperature of the knife head part can be sensed in real time through the action structure in the temperature sensing unit, and when the knife head part is overheated, the action structure can be converted into an extension state from an initial retraction state and triggers the indicating structure to protrude out of the surface of the electrocoagulation pen main body, so that a doctor is reminded to cool the knife head part in time; therefore, in the electric resection operation process of the hypertrophy tonsil and adenoid body of the child, the situation that the scalpel head part is overheated in the long-time continuous state of the operation and burns the tissue of the affected part of the child is effectively avoided, the safety of the soft tissue resection operation of the child is improved, and postoperative recovery and healing of the operative part of the child are facilitated.

The invention discloses a method for preparing titanium-aluminum alloy powder based on a plasma rotating electrode atomization method, and relates to a preparation method of titanium-aluminum alloy powder. The method aims at solving the technical problems that titanium-aluminum alloy powder prepared through an existing method is uneven in particle size, poor in sphericity degree and high in oxygen content, and comprises the steps that firstly, metal raw materials are weighed according to the target titanium-aluminum alloy chemical component proportion, and a uniform cast ingot is obtained through smelting of a vacuum arc smelting furnace; processing the cast ingot into an electrode bar with a smooth surface, mounting the electrode bar on plasma rotating electrode atomization equipment, enabling the electrode bar to rotate at a high speed, melting alloy at the end part of the electrode bar by utilizing a plasma beam generated by a plasma generator, atomizing the alloy into liquid drops under the action of centrifugal force, and cooling and solidifying the liquid drops in a high-purity argon protection atmosphere to form powder; and finally, the powder is collected and screened, finished powder is obtained, the sphericity degree of the powder reaches 95% or above, the oxygen content is lower than 500 ppm, particle size distribution is uniform, and the powder can be used in the fields of aerospace, the automobile industry, energy and the like.

The utility model relates to the technical field of water conservancy protection slope upstream faces, in particular to a water conservancy project protection slope design model which comprises a slope body, one side of the slope body is fixedly connected with a slope toe, the top of the slope toe is provided with an anti-scour assembly, the anti-scour assembly comprises a protection slope main body, the protection slope main body is fixedly connected to the top of the slope toe, and the slope toe is fixedly connected with the slope toe. A drainage groove is formed in one side of the top of the slope protection body, a water receiving groove is formed in the side, away from the drainage groove, of the top of the slope toe, and a green plant planting block is fixedly connected to an inner cavity of the water receiving groove. According to the slope protection design model for the water conservancy project, by installing the anti-scouring assembly, in the process of using the model, through cooperation of green plant planting blocks, metal grids and other components and special structural design, impact of water flow can be resisted, erosion of the water flow to a slope surface is reduced, the service life of a protection slope is prolonged, and safe operation of water conservancy facilities is guaranteed; green plants are planted on the surface, rainwater can be effectively absorbed, water and soil loss is reduced, and soil stability is improved.

The invention discloses a composite truss string structure experiment monitoring method based on a composite sensing rib, the composite sensing rib with a self-sensing function is manufactured according to a fiber bragg grating, the composite sensing rib can monitor the stress change of the environment where the composite sensing rib is located in real time, the composite sensing rib is embedded in a center steel wire of a lower chord cable steel strand of a reduced scale experiment model, and the stress change of the environment where the composite sensing rib is located can be monitored in real time. The composite sensing ribs can directly sense stress changes of the truss in different construction stages, the stress changes of the reduced scale experiment model in different construction stages are monitored in real time through the composite sensing ribs, the accuracy and reliability of monitoring data are improved, problems and risks possibly occurring in the construction process can be found in time, and the construction efficiency is improved. According to the monitoring method based on the composite sensing ribs, construction personnel can adjust construction schemes and measures in time, smooth proceeding of the construction process is ensured, in addition, comprehensive monitoring can be achieved only by embedding a small number of sensing ribs into key parts of the composite string truss through the monitoring method based on the composite sensing ribs, and therefore the monitoring cost is reduced.

The jacking device comprises a top pipe joint, a plurality of jacking pipe joints, a jacking assembly, a jacking rack and a retaining supporting component, the jacking assembly is used for vertically jacking the top pipe joint or the jacking pipe joints, and the upper surface of the jacking rack is close to the bottom of a jacking pipe cover of a pipe piece structure; the retaining supporting component is located on the upper surface of the jacking rack and used for temporarily supporting the lower pipe opening of the jacking pipe joint which is jacked in place, so that the jacking assembly retreats to the initial position to jack the next jacking pipe joint, automatic falling of the vertical pipe under the action of self weight and jacking section soil pressure can be effectively prevented, and construction safety and reliability are guaranteed.

The invention provides an engineering safety management method and system based on a BIM model, and relates to the technical field, and the method comprises the steps: obtaining engineering information, constructing an engineering BIM model, carrying out the monitoring region division of the engineering BIM model, obtaining an engineering model monitoring region, and obtaining the region group association information; calculating an area scheme influence coefficient to obtain a risk area, and calculating a type influence coefficient of each engineering monitoring type to obtain a risk type; calculating an engineering cumulative risk influence coefficient, comparing the engineering cumulative risk influence coefficient with a preset cumulative influence threshold value, obtaining cumulative risk judgment of the engineering BIM model, and further obtaining risk influence early warning information; according to the risk early warning information, the abnormal risk monitoring type and the risk area information, reversely obtaining the wind direction source information, and adjusting the risk source information until the risk early warning information does not exist, the method can comprehensively and accurately identify and evaluate the potential risk in the project, and realizes real-time monitoring and effective early warning.

The invention provides a high-efficiency low-pollution cow dung returning treatment method, which comprises the following steps: adding corn straw and charcoal into cow dung, preparing a fermentation base material, inoculating a compound fermentation inoculant, and carrying out composting fermentation to prepare a cow dung organic fertilizer. The composite microbial inoculant adopts an inner and outer double-film coating structure, aerobic bacteria are embedded in the middle, are released in the early stage of composting, quickly enter a high-temperature stage and decompose and metabolize organic matters, anaerobic bacteria are embedded in the innermost layer, and an inner film coating material adopts composite modified waterborne polyurethane, so that the composite microbial inoculant has a good anti-bacterial effect. Azobenzene and waxberry tannin combined modification endows the membrane structure with the characteristics of low-oxygen cracking, normal-oxygen stability and no influence of enzyme, anaerobic bacteria are released under the low-oxygen condition in the high-temperature last stage and the decomposition period, decomposition of residual cellulose can be promoted, carbon and nitrogen loss caused in anaerobic fermentation is prevented, the speed of converting organic matter into humus is increased, and the yield of the organic matter is increased. Meanwhile, the inner film packing material reacts with the organic acid and the ethanol, so that the quality of the cow dung organic fertilizer is further ensured.

The present invention relates to the technical field of automobile steel manufacturing, and in particular to a 780MPa grade ultra-high hole expansion performance cold-rolled complex phase steel plate for automobiles and a preparation method thereof. The steel plate is composed of the following chemical components in weight percentage: C: 0.08% to 0.13%; Si: 0.1% to 0.5%; Mn: 1.8% to 2.5%; Cr: 0.25% to 0.6%; Mo: 0.1% to 0.5%; Ti: 0.01% to 0.04%; Nb: 0.01% to 0.04%; B: 0 to 0.0004%; P≤0.02%; S≤0.01%, and the balance is Fe and unavoidable impurities. The final structure is a ferrite + bainite + martensite complex phase structure, and the microstructure is calculated by volume fraction as follows: critical zone ferrite 10% to 20%, oriented epitaxial ferrite ≤10%, bainite 25% to 35%, martensite 35% to 52%. The yield strength of the present invention is ≥600MPa, the tensile strength is ≥780MPa, the yield ratio is relatively high, and the hole expansion rate is ≥70%, which can meet the requirements of automobile manufacturers for high flanging performance.

The invention relates to the technical field of data processing, in particular to a current demand and historical demand-based task allocation method, which comprises the following steps of: collecting current and historical demand document data and personnel-historical demand score data; respectively calculating theme distribution in the current demand document data and the historical demand document data; calculating theme similarity between the current demand document data and the historical demand document data according to the two theme distributions; predicting personnel-current demand score data based on the obtained topic similarity; the personnel-current demand score data and the personnel-historical demand score data are combined, comprehensive scores of the personnel are obtained, and a task allocation list is generated according to the comprehensive scores; according to the method, the most suitable task is recommended for the personnel on the basis of the score of the personnel on the historical demand, and the fair, reasonable and efficient task allocation is realized.

The invention provides a corn thinning auxiliary device which comprises a walking supporting mechanism, a lying plate, an isolation cover and a seedling pulling and smashing mechanism, the walking supporting mechanism is used for achieving walking and supporting of the lying plate, the lying plate can move up and down to be adjusted and positioned, an observation hole is formed in one end of the lying plate, and the seedling pulling and smashing mechanism is arranged in the observation hole. The isolation cover and the seedling pulling and smashing mechanism are hung at the bottom of the lying plate through a first tension spring and a second tension spring respectively, the isolation cover and the seedling pulling and smashing mechanism are adjacent to the observation hole, the isolation cover is used for achieving isolation protection of corn seedlings needing to be reserved, and the seedling pulling and smashing mechanism is used for achieving pulling and smashing of the corn seedlings needing to be pulled out. A worker lies on the lying plate for thinning operation, so that the labor intensity of the worker is greatly reduced; when two seedlings with close roots are thinned, corn seedlings in the isolation cover can be effectively prevented from being synchronously pulled out by utilizing the pressing effect of the edge of the isolation cover on the peripheries of the roots of the seedlings, so that the thinning quality can be improved.

The invention discloses a decentralized application-oriented smart contract program generation method, device and equipment and a storage medium, and belongs to the field of block chain smart contracts, and the method comprises the steps of persisting an executable code and state data of a fragmented smart contract in block data; in response to a calling instruction for the fragmented smart contract, extracting the executable code and the state data persisted in the block data to execute the fragmented smart contract, and updating the state data persisted in the block data according to execution of the fragmented smart contract; and in response to a reconstruction instruction for the fragment smart contract in execution, extracting persistent executable codes and state data from the block data, and reconstructing the fragment smart contract in execution through the extracted executable codes and state data. The problems of complex cross-fragment calling, low execution speed and difficult fault recovery of the smart contract are solved, and the performance and stability of the block chain system in decentralized application processing are improved.