26results about How to "Realize prevention and control" patented technology

The invention discloses a mangrove forest disease and insect pest remote monitoring and intelligent prevention and control system based on the Internet of Things. A plurality of modules such as an Internet of Things sensor network, an unmanned aerial vehicle inspection system, a high-definition monitoring camera network, intelligent prevention and control equipment and a software platform are integrated; the Internet of Things sensor network monitors environmental parameters and pest and disease damage signs in real time, the unmanned aerial vehicle inspection system provides aerial inspection support, and the high-definition monitoring camera network realizes 24-hour uninterrupted monitoring on the ground; the software platform is responsible for data acquisition, transmission, analysis and early warning release, and provides a remote control interface for management personnel to perform accurate prevention and control; the intelligent prevention and control equipment automatically or remotely executes prevention and control tasks according to the monitoring data and the early warning information; the system also has additional functions of energy management, network communication, user authority management and the like, and continuous and stable operation and data security of the system are ensured. The implementation of the system can effectively improve the intelligent level of mangrove forest pest control, and provides powerful support for protecting a mangrove forest ecological system.

The invention relates to the technical field of feed additives, and discloses a feed additive and application thereof in yak breeding. The feed additive comprises the following raw materials in parts by mass: 10-20 parts of mixed bean flour, 5-10 parts of a traditional Chinese medicine extract, 3-5 parts of lactic acid bacteria and 1-3 parts of an acid preparation. The feed additive provided by the invention significantly inhibits the expression of foot and mouth disease virus mRNA and inhibits the replication of foot and mouth disease virus; when the feed additive provided by the invention is added into daily feed for yaks, the foot-and-mouth disease of yaks can be effectively prevented and treated.

The invention discloses a concentric structure composite screw based on a step-by-step antibacterial-vascularization-osteogenesis drug release system and a preparation method of the concentric structure composite screw. The preparation method comprises the following specific steps: (1) preparing a methacrylated sodium alginate solution loaded with an antibacterial drug, a vascular promoting drug and an osteogenesis promoting drug respectively; 2) designing and preparing a transparent step-by-step detachable pouring mold with a concentric circle structure; 3) on the basis of the mold, a multi-step in-situ pouring-UV preliminary curing-freezing demolding process is combined, and composite pregel sequentially comprising an osteogenesis layer, a blood vessel formation layer and an antibacterial layer from inside to outside is prepared; and (4) the pregel is subjected to complete UV curing and placed in rotary drying equipment to be dried, a screw master batch is obtained, and the concentric-structure composite screw material is obtained after turning. Due to the concentric circle structure and the multi-layer space medicine carrying structure of the screw, the screw is endowed with excellent mechanical strength and step-by-step antibacterial-vascularization-osteogenesis medicine release capacity, and the screw has important clinical significance on bone defect treatment.

The utility model belongs to the technical field of pest control, and particularly relates to a device for collecting and controlling phauda flammans moth larvae, which comprises a device main body, two ends of the device main body are detachably connected, and a collecting cavity for collecting pests is enclosed in the device main body. The upper end of the collecting cavity penetrates through the upper end of the device body to form a collecting opening, a medicine containing part is fixed to the inner side, located at the collecting cavity, of the device body, and a medicine containing groove used for containing prevention and treatment medicine is formed between the medicine containing part and the inner side of the device body and corresponds to the collecting opening. A fixing part used for being fixed to a trunk is further fixed to the lower side of the device body. According to the device, after the two ends of the device main body are encircled and detachably connected, the device main body is sleeved on a tree trunk, at the moment, the device main body is fixed with the tree trunk through the fixing part, the collecting opening and the medicine placing groove face upwards, and mature larvae of phauda flammans which climb down the tree and pupate are collected by the collecting cavity through the collecting opening or killed by the prevention and control medicine in the medicine placing groove, so that prevention and control are realized.

The invention discloses a multi-loop variable flow state mixing system and a sculpture design and performance evaluation method, and relates to the technical field of mixing, the system comprises a tank body, the front end of the tank body is provided with a liquid inlet, the rear end of the tank body is provided with a liquid outlet, and at least one loop mixing module is arranged between the liquid inlet and the liquid outlet in the tank body; the loop mixing module comprises an upper baffle plate, a lower baffle plate and a base; an arc-shaped groove is formed in the upper end of the base, and flow pattern sculptures are arranged on the surface of the arc-shaped groove; the upper ends of the upper baffles are connected with the upper wall of the inner cavity of the tank body, the forefront upper baffle is arranged behind the liquid inlet, and the lower ends of the upper baffles are inserted into the arc-shaped grooves; the lower baffle is fixedly arranged at the rear end of the base. According to the invention, by enhancing the rotating flow state, the acid liquid is fully mixed when flowing through the system, and the online preparation of the gelled acid liquid is realized.

The present invention discloses a system and method for reducing the risk of a calcining furnace by a coordinated parameter control group, and relates to the technical field related to calcining furnaces. The system includes: receiving the gypsum calcining task requirements of the calcining furnace; generating a calcining furnace control plan; performing preheating stage control optimization to obtain a first-stage coordinated parameter control group; performing calcining stage control optimization to obtain a second-stage coordinated parameter control group; performing cooling stage control optimization to obtain a third-stage coordinated parameter control group; and combining the first-stage coordinated parameter control group, the second-stage coordinated parameter control group, and the third-stage coordinated parameter control group for calcining. The system solves the technical problems that the existing calcining furnace control has preset fixed parameters, is difficult to accurately respond to complex and changeable working conditions, and cannot perform refined control for each stage, which leads to insufficient risk prevention and control effects and poor production efficiency and product quality. The system realizes risk prediction and prevention and control, and achieves the technical effects of improving production efficiency, product quality, and reducing the operating risks of calcining furnaces.

The invention provides application of a reagent for inhibiting expression of EhAQP1, EhPTP2 and EhMetAP2 genes in preparation of a medicine for preventing and / or treating shrimp enterocytozoonosis hepatopenaei, and particularly belongs to the technical field of shrimp culture. The invention provides an application of a reagent for inhibiting expression of EhAQP1, EhPTP2 and EhMetAP2 genes in preparation of a medicine for preventing and / or treating enterocytozoonosis hepatopenaei of shrimps. By inhibiting the expression of EhAQP1, EhPTP2 and EhMetAP2 genes, the number of spores of enterocytozoon hepatopenaei can be reduced, and the prevention and treatment of enterocytozoon hepatopenaei diseases can be realized.

The invention relates to the technical field of contact lenses, in particular to a multi-level myopia control lens for delaying the myopia progress, which comprises a lens body, the lens body comprises an inner lens layer and an outer lens layer which are overlapped, and at least one functional layer is arranged between the inner lens layer and the outer lens layer. A plurality of microstructure patterns are arranged on the functional layer and are used for reducing the illumination intensity passing through the functional layer; the microstructure pattern is arranged on the functional layer through an etching or printing and dyeing technology; materials adopted by the inner lens layer and the outer lens layer are different from materials adopted by the functional layer. By adopting the scheme, the loss of the myopia prevention and control structure caused by daily use can be reduced, and the service life is prolonged.

The invention discloses an expressway subgrade structure capable of preventing subgrade softening, and relates to the technical field of expressways, the expressway subgrade structure comprises a base body, the base body comprises a rammed earth layer, a bedding layer, a water stabilizing layer, a concrete layer and an asphalt layer, the rammed earth layer, the bedding layer, the water stabilizing layer, the concrete layer and the asphalt layer are sequentially arranged from bottom to top, the bedding layer is laid on the top of the rammed earth layer, and the water stabilizing layer is laid on the top of the asphalt layer. And the bedding layer is matched with the rammed earth layer. According to the invention, the water filtering property of the roadbed is improved through the bedding layer and the water stabilizing layer, and then the collected accumulated water is discharged through the water collecting tank and the water collecting pipe, so that the drainage speed in the soil base layer is increased, the viscosity loss caused by excessive water in the soil layer is avoided, and the soil and the accumulated water can be quickly separated in rainy seasons; therefore, the highway roadbed softening problem is prevented, the highway is prevented from having problems, the blocking net in the water catchment groove blocks soil flowing down along with accumulated water, and the situation that drainage is affected due to the fact that the soil enters a pipeline and the pipeline is blocked is prevented.

The invention relates to the field of violation monitoring, in particular to violation behavior monitoring equipment and method based on dual prevention. The technical problems that in the prior art, a violation behavior monitoring method lacks a prediction analysis and risk prevention and control mechanism, so that the early warning capability and the prevention and control effect of a monitoring system are limited, and a passive response mode is mostly adopted, that is, the violation behavior can be found and recorded only after the violation behavior occurs, and early warning and prevention cannot be performed in advance are solved; according to the technical scheme, the violation behavior monitoring equipment based on dual prevention comprises a high-definition camera, a mounting rack and a central processing unit; according to the invention, by introducing a risk assessment mechanism, quantitative assessment is carried out on the properties and consequences of the violation behaviors, the hazard level of the violation behaviors is determined, a scientific basis is provided for subsequent treatment measures, potential risk behaviors are predicted through a machine learning algorithm, early warning and prevention and control are realized, and occurrence of the violation behaviors and accumulation of potential risks are effectively reduced.

The invention provides a method for preventing and controlling tomato bemisia tabaci by using nesidiocoris tenuis, and relates to the technical field of pest prevention and control. The method comprises the following steps: S1, raising seedlings of tomatoes, and transplanting 20-25 days after raising the seedlings; s2, according to an intercropping mode that two rows of kidney bean planting belts are arranged every 3-4 rows of tomatoes, the kidney beans are arranged in a staggered mode and planted in different periods; s3, after tomato seedlings are planted, the density of the nesidiocoris tenuis in the kidney bean planting zone and the density of bemisia tabaci on tomato plants are monitored in real time, and the nesidiocoris tenuis is supplemented according to the monitored value; s4, performing field management. According to the method, the kidney beans and the tomatoes are intercropped, the kidney beans are used for providing a good survival and inhabitation environment for the nesidiocoris tenuis, good disease and pest prevention and control can be achieved in the whole growth period of the tomatoes, meanwhile, the yield of the tomatoes and the kidney beans can be improved, and economic benefits are increased.

The invention belongs to the technical field of pesticides, and particularly relates to a smoke agent for preventing and treating melon and vegetable pests and a preparation method and application thereof. After the wormwood, the emamectin benzoate and the thiamethoxam are specifically combined and prepared into the smoke agent, decomposition of organic components in the wormwood is facilitated, and the wormwood, the emamectin benzoate and the thiamethoxam jointly release smoke; when smoke diffuses to the surfaces of crops, effective components such as emamectin benzoate and thiamethoxam can quickly act on nervous systems of pests, death or growth inhibition of the pests is caused by interfering nerve conduction and cell metabolism processes of the pests, and fumigating components of wormwood can generate an inhibition effect on physiological processes of the pests, so that the pest killing effect is improved. The comprehensive control effect of the smoke agent is further enhanced. In addition, the smoke can be in contact with plant surfaces and hidden parts where pests inhabit, and the problem that the pests are difficult to kill in a spraying method is effectively solved. Therefore, the prepared smoke agent has the advantages of high efficiency, environmental protection, economy, simplicity and convenience in operation and the like.

The invention relates to the technical field of live pig monitoring, and discloses a live pig excretion behavior judgment method based on behavior monitoring, which comprises the following steps of: firstly, installing a monitoring equipment real-time positioning device in a specified to-be-monitored live pig house, wearing an RFID (Radio Frequency Identification) tag on each pig, and then judging the excretion behavior, the temperature and the urine and excrement of the pig through a live pig behavior analysis model; if various data are abnormal, information is fed back to the main controller module, the main controller module drives the corresponding safety early warning module, and if no abnormal behavior exists, the information is imported into the information storage module for temporary storage. According to the live pig excretion behavior judgment system based on behavior monitoring, the main controller module is arranged, other modules are controlled in a wireless connection mode, various data of live pigs can be mastered in time, all devices are accurately driven to work cooperatively, and the system is more intelligent; image data and information of live pigs in a real-time positioning module are collected, so that a database of the live pigs is conveniently formed.

The invention discloses a myopia prevention and treatment phototherapy cabin and system, and the cabin comprises at least one room, the room is internally provided with at least one color light illumination system, the wavelength of emitted light of the color light illumination system is one section or all of 550-1100 nm, and the emitted light of the color light illumination system can directly irradiate or reflect into human eyes and enter a system. According to the myopia prevention and treatment phototherapy cabin, far-red light of 550-1100 nm is emitted through the color light illumination system for eye stimulation, then non-contact myopia prevention and treatment can be achieved, the myopia prevention and treatment can be carried out by multiple persons at the same time, the prevention and treatment efficiency is improved, and the myopia prevention and treatment efficiency is improved. The device is suitable for centralized treatment.

This application belongs to the field of molten salt energy storage technology for concentrated solar power generation, specifically relating to a method and system for early warning of local dry burning in a molten salt electric heater. The method for early warning of local dry burning in a molten salt electric heater includes the following steps: real-time acquisition of operating data of the molten salt electric heater; calculation of the effective heat transfer coefficient of the heater using a first mathematical model based on the operating data; calculation of the thermal spectrum distribution factor using a second mathematical model based on the effective heat transfer coefficient, combined with the inherent structural parameters of the heater and preset fluid dynamics correction parameters; calculation of the local pipe wall temperature peak using a third mathematical model based on the operating data, combined with the effective heat transfer coefficient and the thermal spectrum distribution factor; dynamic updating of the fouling thermal resistance and calculation of the warning coefficient using a fourth mathematical model based on the local pipe wall temperature peak, operating data, and historical data of the molten salt electric heater; comparison of the warning coefficient with a preset threshold, and triggering an alarm signal if the warning coefficient is greater than or equal to the preset threshold.

The present invention relates to a method and system for preventing and controlling watershed non-point source pollution based on key landscape indicators, including: collecting multiple non-point source pollution indicators at each sampling point in the target watershed; obtaining multiple landscape indicators at each sampling point in the target watershed; after inputting the same non-point source pollution indicator and the corresponding landscape indicator of all sampling points into a random forest model, screening out the key landscape indicators of the non-point source pollution indicator and applying a non-parametric deviation reduction algorithm and a bootstrap method to obtain the mutation threshold data of the key landscape indicator; optimizing the landscape pattern according to the response relationship between the key landscape indicator and the non-point source pollution indicator and the mutation threshold of the key landscape indicator, and realizing the prevention and control of non-point source pollution. By screening the key landscape indicators that affect non-point source pollution in the watershed and determining the mutation threshold of the key landscape indicator, the landscape pattern of the target watershed is more accurately optimized, and the non-point source pollution in the watershed is accurately and efficiently prevented and controlled.

The invention discloses an embedded-packaged kirschner wire composite functional coating with local anti-infection and percutaneous sealing performance and a preparation method of the embedded-packaged kirschner wire composite functional coating. The method comprises the following specific steps: 1) determining an antibacterial coating embedding site on the kirschner wire as required; 2) forming two groove structures on the surface of the kirschner wire by using a fixed-point sanding technology based on the embedding site information; (3) after high-temperature vacuum cleaning, physical vapor deposition is conducted on an antibacterial coating with the thickness larger than the depth of the groove; 4) detecting the thickness of the coating except the groove by using a film thickness gauge, and machining and polishing the kirschner wire by taking the average thickness; and (5) finally, self-polymerizing a dopamine coating on the surface of the kirschner wire in situ and chemically grafting an epithelial repair promoting medicine on the surface of the kirschner wire, and cleaning and sterilizing to obtain the embedded-packaged kirschner wire composite functional coating with local anti-infection and percutaneous sealing properties. The coating ensures that when the kirschner wire is externally fixed and used, good anti-infection and percutaneous sealing effects are achieved at the wound skin position.

The present application relates to the field of geographic information technology, in particular to a land transaction dynamic monitoring and analysis system based on multi-source data fusion, comprising a data integration and storage unit, a knowledge graph construction unit, a real-time verification unit, a trusted transaction verification unit, a dynamic monitoring and decision support unit. The present application integrates heterogeneous data through a multi-modal data lake architecture and unifies the time and space reference, uses knowledge graph technology to construct a transaction element correlation network to generate dynamic verification rules, combines with the Flink stream processing engine to realize real-time compliance filtering of the transaction process, uses the improved isolated forest algorithm and graph convolution network to complete the transaction price rationality verification and subject correlation analysis and stores the evidence based on the blockchain technology, so as to realize the intelligent management of the whole process of land transaction data, the accurate identification and prevention and control of risks, and the efficient and data-based support of regulatory decisions.

The application provides a composition with a killing effect on golden apple snails and application thereof, and belongs to the technical field of pest control. Effective active ingredients of the composition include discarded tobacco leaf extract and orange peel essential oil. The composition is extracted from natural plants, has high efficiency and safety, can effectively achieve the prevention and control of harmful soft-bodied animals, i.e., golden apple snails, has a significant killing effect on the golden apple snails at a low concentration, and is verified by experiments to have no toxicity to 3-4 cm carp fry at an effective concentration, fully indicating that the composition is safe to non-target organisms and has low environmental risk.

The application provides a facility agriculture disease and pest prevention and control method and device based on deep learning, relates to the technical field of agricultural protection, and collects canopy images according to a dynamically adjusted monitoring period through an imaging node in a facility, and outputs a binary change area graph after light compensation, pixel-level difference calculation and noise filtering; subsequently, suspicious lesion change areas are extracted from three continuous periods to generate a dynamic video sequence of diseases and pests, the sequence is input into a three-dimensional convolutional neural network of an embedded time attention enhancement module, spatiotemporal features are extracted to obtain a high-order feature vector; then, environmental auxiliary features are fused, a disease and pest classification result is output through a fully connected classifier, and a prevention and control instruction is generated; finally, a continuous learning strategy of a closed loop and experience playback is verified based on a prevention and control effect, model parameters are adaptively optimized, and a complete prevention and control closed loop is formed.

The laying hen feeding device capable of preventing and controlling salmonella comprises annular pipes and a controller, the annular pipes are oppositely arranged, a plurality of connecting pipes are arranged in the middle of the annular pipes, sleeves are oppositely arranged at the tops and the bottoms of the annular pipes, a rotating pipe is rotationally connected between the two sleeves, a U-shaped pipe is connected to the side face of the rotating pipe, and a plurality of transverse pipes are arranged in the middle of the U-shaped pipe. A closing mechanism is arranged on the side face of the annular pipe and used for opening and closing the U-shaped pipe, the connecting pipe is connected with a circulating pipe, a water pump and a heating box are arranged on the circulating pipe, a water inlet pipe is arranged on the top of the heating box, a water inlet valve is arranged on the water inlet pipe, and a heating pipe, a temperature sensor and a liquid level sensor are arranged in the heating box. The salmonella breeding device is composed of the pipelines which are communicated with one another, the whole pipelines are filled with hot water, the breeding device is heated, and salmonella on the breeding device is killed; the salmonella is prevented and controlled; a water spraying pipe is arranged, and chicken manure is cleaned through water flow; water can be provided for the laying hens to drink, and water sources are saved.

The application provides a multi-party collaborative progress visualization monitoring method for intelligent building facilities, relates to the technical field of intelligent building construction monitoring, and comprises the following steps: collecting data to establish a three-dimensional model; establishing a causal relationship identifier based on time sequence and correlation characteristics, obtaining a causal graph, calculating an abnormal propagation probability, and marking a risk area; performing information mapping to generate monitoring data flow and extract features; calculating feature correlation and mapping into a scene semantic segmentation graph; and rendering to obtain a visual three-dimensional dynamic construction progress in combination with risk area and progress information. The application realizes risk early warning and progress visualization monitoring of the construction process.

The application belongs to the technical field of biological control of agriculture, and particularly relates to a DNA pesticide as well as a preparation method and application thereof. The application provides a DNA pesticide, which comprises a nano-carrier and a genome of a fungal virus; the fungal virus is a plant pathogenic fungal virus, and can cause pathogenicity decline of a host fungus. The application uses the nano-carrier to load the genomic DNA of the fungal virus, so as to deliver the genomic DNA of the fungal virus to a plant pathogenic fungus, make the genomic DNA of the fungal virus replicate, transcribe and translate in the plant pathogenic fungus, and form a mature virus, thereby causing pathogenicity decline of the plant pathogenic fungus, and achieving the prevention and treatment of fungal diseases.

The invention relates to the technical field of rapeseed oil sterilization, in particular to a rapeseed oil closed-loop sterilization method based on thermal radiation and vapor permeation, and the method comprises the following steps: preheating rapeseed oil, conveying the rapeseed oil to a deodorization tower, and obtaining infrared thermal imaging data, a viscosity data sequence and a temperature data sequence; determining whether the preheating treatment is qualified based on the preheating coefficient; in response to the pre-heat treatment being qualified, determining a degassing strategy based on the viscosity deviation ratio; a degassing strategy is executed, and whether degassing treatment reaches the standard or not is determined based on the moisture content and the dissolved oxygen content after degassing; in response to the degassing treatment reaching the standard, performing steam stripping treatment on the rapeseed oil and determining whether the bubble state generated by the steam is qualified or not based on the sound pressure fluctuation ratio; and reducing the steam flow in response to the unqualified bubble state, determining whether the temperature of the rapeseed oil is reduced or not based on the sound pressure fluctuation rate slope, and performing gradient cooling and filtering treatment on the rapeseed oil subjected to steam stripping treatment under vacuum protection to obtain treated rapeseed oil. The quality of the rapeseed oil is improved.

The invention relates to the technical field of microorganisms, and particularly discloses a salt-tolerant bacillus GZ-HJ-BHF2 strain and application of a microbial agent of the salt-tolerant bacillus GZ-HJ-BHF2 strain in prevention and treatment of pepper rust and plant diseases. The salt-tolerant bacillus is named as GZ-HJ-BHF2 and is preserved in the China Center for Type Culture Collection on July 31, 2024, and the preservation number of the salt-tolerant bacillus is CCTCC M 20241720. The salt-tolerant bacillus GZ-HJ-BHF2 provided by the invention shows strong bacteriostatic activity, can efficiently inhibit the growth of various pathogenic bacteria such as pepper rust disease and the like, and has a remarkable prevention and treatment effect on pepper diseases and insect pests. Meanwhile, the strain also can promote the growth of pepper plants, improve the stress resistance of the plants, and significantly improve the yield and quality of pepper. In addition, the invention also optimizes the optimal culture conditions of the fermentation culture solution of the bacillus halotolerant GZ-HJ-BHF2, and ensures the high efficiency and operability of the bacillus halotolerant GZ-HJ-BHF2 as a biological control agent in wide application. The preparation method disclosed by the invention is simple and easy to implement, low in production cost and suitable for industrial production, and has wide popularization and application prospects.

The application discloses a kind of precision determination methods of coal column coal spontaneous combustion position, it is related to coal mine safety technical field.The method is first to the surface deformation of coal column, broken state monitoring, determine possible risk section of air leakage fracture or coal spontaneous combustion;Then using section air leakage detection mode, determine whether the risk section of coal column has formed air leakage fracture and determine corresponding air leakage fracture position and air leakage speed;Finally in the section that it is judged to exist air leakage fracture, the temperature measuring point is arranged to measure temperature and gas concentration monitoring mode measures the high temperature risk position of coal spontaneous combustion that exists in coal column and its migration trend with roadway excavation or stoping.The present application combines a variety of detection techniques to predict and determine the air leakage fracture and high temperature risk position of coal spontaneous combustion of coal column during excavation and working face stoping from multiple different dimensions, which can further improve the safety of excavation and production under the arrangement mode of coal column gob-side entry driving, and plays an important role for mines using the arrangement mode of coal column gob-side entry driving.