108 results about "Chemical pollution" patented technology

The invention discloses a central air conditioner pollution degree autonomous evaluation robot based on multi-modal perception, and relates to the technical field of intelligent detection, the robot comprises a voxel space division module, a data acquisition module, a pollution characteristic mapping modeling module, a physical pollution detection module, a chemical pollution detection module and a biological pollution detection module; through three-dimensional point cloud data scanning and real-time data acquisition, the air pipe wall surface roughness, the temperature delay time, the gas fluctuation, the heat retention degree and the microbial metabolism gas concentration are monitored in real time, and a three-dimensional pollution characteristic mapping model is generated according to the pollution characteristic data set; by calculating a physical pollution index PPI, a chemical pollution index CPI and a biological pollution index BPI and comparing and analyzing with corresponding threshold values, whether dust retention, gas concentration and microorganism quantity in an air pipe exceed standards or not is judged in real time, cleaning, filtering and sterilizing strategies are automatically triggered, and the air quality and operation safety of a central air conditioning system are effectively guaranteed.

The invention discloses a lake pollution traceability analysis method based on multi-source data assimilation and reverse diffusion, and relates to water pollution traceability analys.The lake pollution traceability analysis method comprises the steps that chemical pollution is monitored at the downstream of a lake, monitoring data are imported into a hydrodynamic force-water quality model after Kalman filtering, and spatial and temporal distribution data of pollutants in a water body are obtained; pollution source inversion is carried out based on a differential evolution Markov chain Monte Carlo method, and pollution source parameters are obtained; forward simulation is carried out, a flow velocity field and water depth are solved through a hydrodynamic force-water quality model, then a pollutant transport model is generated, pollution source parameters are used as input, a finite volume method discrete control equation is used based on the pollutant transport model to predict pollutant concentration space-time evolution, and pollution duration under natural attenuation is evaluated; and comparing real-time monitoring data with an expected effect, and evaluating a pollution traceability analysis effect. Pollution source positioning errors are reduced, pollution contribution rate calculation accuracy is improved, traceability efficiency is improved, the risk of excessive reagents is avoided, and treatment cost is reduced.

The invention discloses chemical pollution toxic wastewater pretreatment equipment, and relates to the technical field of wastewater pretreatment, the chemical pollution toxic wastewater pretreatment equipment comprises a body assembly, the body assembly comprises a pool body, a platform is fixed on the pool body, a rotating shaft is arranged on the platform, a chain wheel is fixed on the rotating shaft, a chain is meshed on the chain wheel, a follow-up block is fixed on the chain, and the follow-up block is fixed on the pool body. A slag scraping plate is arranged on one side of the follow-up block, and an arc-shaped plate is fixed in the tank body; and the cleaning assembly is arranged on one side of the slag scraping plate. The slag scraping device has the beneficial effects that the adaptive cleaning piece is additionally arranged at the slag scraping mechanism, automatic cleaning after single-time slag scraping of the slag scraping plate is achieved by combining the moving track and power of the slag scraping plate, the slag scraping efficiency is improved, the cleaning piece can automatically trigger cleaning when the slag scraping plate completes one-time slag scraping, is close to a slag stacking area and is in a horizontal state, and the slag scraping efficiency is improved. The scum attached to the surface of the scum scraping plate is scraped, the triggering time of the cleaning piece is accurately matched with the moving track of the scum scraping plate, and interference with the movement of the scum scraping plate is avoided.

The utility model discloses a kind of MEA seven-in-one stacking devices, including bottom plate and detachable positioning plate. Positioning rod is provided on bottom plate, for fixing MEA and polar plate. Detachable positioning plate is formed by two pieces of L-shaped parts transversely assembled, and is provided with the first positioning hole for positioning rod to pass through and the positioning through slot for GDL positioning. The core of the device is to integrate seven-in-one laminating process and stack process, cancel the traditional GDL dispensing link, directly fix GDL using the final stack pressure of electric pile. The design does not need special equipment such as dispensing and hot pressing, simplifies the process, improves production efficiency, and at the same time, completely solves the problem of uneven pressure distribution and chemical pollution caused by glue line, suitable for efficient and high-quality assembly of fuel cell stack.

The invention provides high-whiteness and low-isoflavone-content soybean protein isolate for infant food, and belongs to the technical field of infant complementary food. Comprising the following components in percentage by mass: 92.5%-6% of soybean protein isolate, 6.0% of maltodextrin, 0.8% of sodium carboxymethyl cellulose, 0.1% of sucralose and 0.6% of ethyl vanillin, the risk of residual chemical bleaching agents (hydrogen peroxide and sodium hypochlorite) is avoided, the content of isoflavone is reduced to be less than or equal to 10mg / kg, the hidden danger of endocrine interference is reduced, the damage of high temperature and strong acid / alkali to a protein structure is reduced, and the quality of the protein is improved. The energy consumption is reduced through low-temperature sterilization and vacuum freezing dehydration, the whiteness is greater than or equal to 85%, the sensory requirements are met, the protein content is greater than or equal to 90%, the purity is high, and the protein is suitable for being used as a high-quality protein source of infant food; the green solvent and physical / biological decoloration reduce chemical pollution, and the process is more environment-friendly.

The conventional wooden pallets are making de-forestation, lower sustainability, prone to absorb bacteria,chemical contamination & splinters and damage. The wooden pallet required ISPM no.15 (International Standard for Phytosanitary Measures no.15 for the regulation of food packaging material. The roto-molded plastic pallets are cannot be easily repaired when damaged. Plastic pallets are more expensive than wooden pallets. Plastic pallets contribute to increase the carbon footprint. Etruded Plastic Sand pallets are durable, repairable, exempted from ISPM no.15. The present invention consists of two elements stiffener(2) and rib(3) gluing together to make a pallet. Etruded pallet do not required any mechanical fastners.

The invention provides a method for purifying mesona chinensis benth polysaccharide based on membrane separation and application thereof, and relates to the technical field of mesona chinensis benth polysaccharide purification. The method for purifying mesona chinensis benth polysaccharide based on membrane separation comprises the following steps: carrying out pressure filtration on a mesona chinensis benth extracting solution by using a ceramic membrane with the aperture of 750-850 nm, a tubular membrane with the aperture of 200-300 KD and an ultrafiltration membrane with the aperture of 50-150 Da in sequence to obtain a concentrated solution, and drying the concentrated solution. According to the method disclosed by the invention, membranes with different aperture specifications are used for separation, the functions of deproteinization, small molecule impurity removal, concentration and dialysis are realized in a single system, finally, a high-concentration concentrated solution is directly obtained, and the process stability is improved. In addition, the preparation method is short in time consumption, high in separation efficiency, free of chemical pollution and low in energy consumption, and the polysaccharide recovery rate can reach 88.5% through a membrane separation system.

An optical fiber grinding coated abrasive tool and a preparation method thereof. The present application discloses an optical fiber grinding coated abrasive tool and a preparation method thereof, and belongs to the field of grinding materials. The present application aims to solve the problems of PIN hole residual pollution and cleaning difficulty caused by the use of grinding fluid containing chemical additives in traditional grinding process. The abrasive tool adopts an innovative double-layer coating structure: the bottom layer is a porous elastic layer with liquid storage function, and the surface layer is a mud crack structure abrasive layer with controllable consumption. Only water or grinding oil is needed during grinding, and the surface layer can gradually fall off to form fresh grinding slurry, realizing the effective replacement of liquid grinding medium by solid abrasive tool. This technical scheme avoids chemical pollution, simplifies the operation process, and can stably obtain high-precision optical fiber end faces, especially suitable for precise grinding of MPO multi-core fiber connectors.

The invention relates to the field of bamboo veneer processing, in particular to a method for widening a large-breadth flattened sliced bamboo veneer, which comprises the following steps of: compounding the sliced bamboo veneer with gauze or non-woven fabric by hot pressing; edge cutting and width fixing are conducted on the compounded sliced bamboo veneers; glue is smeared in the thickness direction of the sliced bamboo veneers; the sliced bamboo veneers are placed in an environment of 30-50 DEG C, and glue is dried; the dried sliced bamboo veneers are placed in a board splicing machine for pre-splicing; and hot-pressing and compounding the sliced bamboo veneer and the gauze or the non-woven fabric again to obtain a finished product. The formaldehyde-free environment-friendly adhesive is adopted, so that chemical pollution is reduced; the side face of the sliced bamboo veneer is pre-spliced and combined with gauze / non-woven fabric, multiple times of gum dipping is avoided, and gum consumption can be reduced; continuous veneers with the width of 2-10 m or above can be prepared, cloth-shaped veneering materials are achieved and directly used for wall decoration, and machining links can be reduced; the cut bamboo wood is suitable for household products such as stationery bags and computer supports, and the application dimension of the bamboo wood can be expanded.

The application discloses a kind of adjustable imitative tree shape kneading and rolling air blowing type sea-buckthorn harvester, belong to agricultural machinery technical field.The harvester includes mobile adjustable vehicle frame, airflow generating device, tree-shaped air blowing chamber, transport collection device and power transmission system;Tree-shaped air blowing chamber can be lifted, open and close, and the inner wall is provided with food-grade buffer pad, and the internal air pipe nozzle is distributed in imitation tree shape;Airflow generating device generates pulse airflow, cooperates with air blowing cylinder rotation to form kneading and rolling cooperative fruit removal, realizes low-damage fruit drop;Transport collection device is located below air blowing chamber, efficiently collects fruit, reduces impurities mixing.The present application can be adapted to different tree age, height, crown width sea-buckthorn plant, with high harvesting efficiency, low fruit breakage rate, no chemical pollution, suitable for large-scale sea-buckthorn plantation mechanized harvesting, solve the problem of traditional harvesting mode, such as large damage, low efficiency, many impurities, poor adaptability.

A sample contamination detection assembly may include an environmental sensor device configured to simultaneously measure two or more of the following in order to determine chemical contamination: humidity, temperature, or volatile organic matter content of one or more samples. The assembly may include a funnel device. The funnel device may include a plurality of side walls defining two or more internal cavities. At least one side wall may include an inlet opening connected to an inlet cavity and a first exhaust opening connected to an exhaust cavity, and the environmental sensor device may be positioned close to the inlet opening and the first exhaust opening. The funnel device may include a rim configured to direct the air from the handler away from the environmental sensor device. The funnel device may include a slit located in at least one side wall, the slit may be configured to direct air from one or more samples to the environmental sensor device.

The invention relates to the technical field of adsorbents, and discloses a preparation method and application of a sunflower stem pith foam adsorption material.The preparation method comprises the steps that microfibrillated cellulose, quaternized chitosan and sunflower stem pith powder are put into a beaker to be mixed, a cross-linking agent is added, and stirring cross-linking is conducted; and then cryopreserving and thawing to prepare the composite sunflower stem pith foam adsorption material with the dispersed sunflower stem pith powder wrapped by the chitosan. Chitosan is used as a support to support and disperse sunflower stem pith powder, so that sunflower stem pith agglomeration is avoided, and active adsorption sites are increased. The adsorption capacity of the sunflower stem pith foam adsorption material prepared by the method is greatly increased, the adsorption capacity of Congo red is 9 times that of uncompounded sunflower stem pith, the performance is greatly improved, and the sunflower stem pith foam adsorption material can be applied to adsorption of hydrophobic and anionic azo dyes and has a good application prospect. The adsorbent has the advantages of low cost, simplicity in preparation, no chemical pollution, reproducibility, excellent adsorption performance and the like.

The invention discloses an electrically-assisted forming pure electroplastic effect measuring device and method based on contact type cooling. The device comprises a loading unit, an electrifying unit, a contact type cooling unit, a measuring unit and a control unit. The method is characterized in that a friction force calibration experiment is carried out, and system errors are quantified; then, under closed-loop temperature control, electrifying, deformation and dynamic cooling are synchronously carried out, so that the temperature of the sample is stabilized at the target temperature to completely offset the Joule heating effect; and finally, the measurement result is corrected based on the calibration data, the corrected electrified deformation data is compared with the thermal baseline data, and the difference value is the accurate quantized value of the pure electroplastic effect. According to the device and the method, the high-thermal-conductivity insulating ceramic chip is adopted for contact type cooling, the problem of material chemical pollution caused by liquid nitrogen injection is fundamentally avoided, system errors caused by contact are eliminated through an original friction force calibration and correction process, and in-situ, accurate and nondestructive measurement of the pure electroplastic effect of the material is achieved.

The utility model relates to the technical field of water purification, particularly provides water purification equipment, and aims to solve the problem that the use experience of a user is poor due to the risk of cleaning agent residue after cleaning of the conventional water purification equipment. The water purification equipment comprises a reverse osmosis membrane filter element, a water inlet main path, a cleaning assembly and a pure water component, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter element, and a cleaning outlet of the cleaning assembly is communicated with the water inlet end of the reverse osmosis membrane filter element; the water purifying equipment is arranged to be capable of conveying water at the pure water end of the reverse osmosis membrane filter element to the pure water using component for a user to drink, and the water purifying equipment is arranged to be capable of discharging the water at the pure water end of the reverse osmosis membrane filter element to the outside of the water purifying equipment. In addition, after the reverse osmosis membrane filter element is cleaned by the cleaning assembly, the water purification equipment can also discharge the water containing the cleaning agent at the pure water end of the reverse osmosis membrane filter element to the outside of the water purification equipment, so that zero addition and zero chemical pollution are realized, and the use experience of a user is improved.

The invention discloses a temperature-sensitive type dendronized cyclodextrin polyrotaxane hydrogel and a preparation method thereof, relates to the field of hydrogel materials, and provides a dendronized cyclodextrin polyrotaxane with temperature responsiveness and reductive degradability through molecular design and synthesis, a three-dimensional cross-linked network is formed through a body [2 + 2] light ring addition reaction, and the temperature-sensitive type dendronized cyclodextrin polyrotaxane hydrogel is prepared. The method has the advantages that the operation is simple, the chemical pollution is avoided, the cyclodextrin coverage rate and the tree-shaped alkoxy ether element grafting rate are adjustable, and the prepared hydrogel has adjustable mechanical property, temperature responsiveness and reductive degradability, and can be used for preparing the dendritic cyclodextrin polyrotaxane hydrogel material. The prepared temperature-sensitive type dendronized polyrotaxane hydrogel has a potential application value in the field of biomedical materials.

The utility model relates to the technical field of termite treatment, and discloses a termite treatment device which comprises a lower box body and universal wheels, lifting handles are fixedly installed on the two side faces of the lower box body, the universal wheels are fixedly installed at the positions, close to the four corners, of the bottom of the lower box body, and air holes are formed in the positions, close to the top, of the four side faces of the lower box body. A liquid medicine box structure is arranged at the bottom in the lower box body, a mounting structure is arranged between the lower box body and the upper box body, through termite induction inlets are formed in the four side faces of the upper box body, a fixing structure is arranged at the top of the upper box body, and a rotating structure is arranged at the top in the upper box body; according to the termite collecting box, the bait rod is arranged to induce termites, the situation that a large amount of chemical agents are used is avoided, and after the termites are attracted by the bait rod, the termites enter the collecting hopper and then are treated through other structures, chemical pollution to the environment is reduced.

The application discloses a device and method for spraying S-ethofenprox in tobacco threshing and redrying online. The device comprises a dosing unit, a spraying unit and a controller. The controller is connected with an online production control system. The spraying unit is connected with a leaf moistening drum equipment. The dosing unit comprises a medicine tank and a medicine transmission pipeline. The medicine tank is used for storing S-ethofenprox medicine. The spraying unit is used for spraying S-ethofenprox medicine on tobacco in the leaf moistening drum equipment. One end of the medicine transmission pipeline is connected with the medicine tank. The other end of the medicine transmission pipeline extends into the leaf moistening drum equipment and is connected with the spraying unit. A pneumatic diaphragm regulating valve connected with the controller is arranged on the medicine transmission pipeline. The device and method for spraying S-ethofenprox in tobacco threshing and redrying online can spray biological medicine online in tobacco threshing and redrying, so that the purpose of preventing and controlling insect pests of tobacco is achieved. The fumigation and insect killing process in the later storage process of cut tobacco is reduced. The device and method not only save cost, but also reduce chemical pollution and residues.

The utility model belongs to the technical field of biochemical analyzers, and particularly relates to a liquid path device of a full-automatic biochemical analyzer, which comprises a mounting shell, a liquid path assembly, a locking assembly, a shade assembly, a filter assembly and a cabinet door rotationally connected to the front end of the mounting shell, a mounting plate is fixedly mounted at the rear end of the mounting shell, the liquid path assembly is mounted in the mounting plate, and the locking assembly is mounted in the mounting plate. The locking assembly is installed in the liquid path assembly, the shielding assembly is installed in the liquid path assembly, and the filtering assembly is installed in the liquid path assembly. The liquid path assembly is matched with the spraying head through the water storage cylinder, automatic cleaning of the appliance is achieved, the situation that the human skin is relieved by chemical pollution on the appliance due to manual cleaning of the appliance, and the health of staff is affected is avoided, meanwhile, the locking assembly drives the clamping block to clamp the appliance through the double-end lead screw, limiting and locking of the appliance are achieved, and the use effect is good. And the stability of the appliance during washing is guaranteed, and the appliance is prevented from shaking and breaking due to impact force during washing.

The invention relates to a fire-resistant impact-resistant flame-retardant cable for an intelligent building and a preparation method. The fire-resistant impact-resistant flame-retardant cable sequentially comprises a conductive wire core, a gradient impact-resistant composite layer and a polyurethane elastomer zigzag groove sheath layer from inside to outside, the gradient impact-resistant composite layer is composed of an inner buffer layer prefabricated belt, a middle transition layer prefabricated belt and an outer rigid layer prefabricated belt. Fiber woven cloth serves as a framework of each prefabricated belt, grids on the two sides of the fiber woven cloth are filled with polyphenyl ether matrixes, and the filling rate is 95%-98%; rubber microspheres with core-shell structures are dispersed on the surface of the polyphenyl ether matrix; when the cable prepared by the invention is seriously impacted, the self-repairing filler can be released when the microsphere shell layer is broken due to impact, so that microcracks can be quickly and autonomously repaired at normal temperature, further invasion of water vapor and corrosive gas is effectively prevented, and the long-term reliability in intelligent building basements, pipeline layer moist and chemical pollution environments is greatly improved.

The invention provides a low-temperature evaporation and concentration recycling system for medium-high-temperature geothermal thermal spring water, which comprises a raw heat energy adaptation and raw water conveying unit, a pure physical pretreatment unit, a low-temperature high-power concentration unit, a solid-liquid concentrated liquor treatment and mineral recovery unit, a condensate water full-recycling unit and an intelligent monitoring unit, the invention further provides a medium-high temperature geothermal thermal spring water low-temperature evaporation and concentration recycling method adopting the medium-high temperature geothermal thermal spring water low-temperature evaporation and concentration recycling system. According to the invention, the technical problems of primary heat energy waste, high-hardness scaling and chemical pollution of medium-high temperature geothermal hot spring water, health component attenuation, high energy consumption of tail end byproduct treatment and single resource utilization of geothermal hot spring water in the existing geothermal hot spring water concentration recycling technology are effectively solved.

The invention relates to the technical field of nano material processing, and discloses an in-situ cleaning method for a transmission electron microscope sample material surface pollution layer. According to the in-situ cleaning method provided by the invention, in a high-vacuum environment of a transmission electron microscope, a controllable and localized physical and mechanical action is applied to a preselected microscopic area on the surface of a sample by using a precisely controllable nano needle tip, so that surface pollutants are directly removed in manners of scraping, stripping and the like; the nondestructive detection capability of the transmission electron microscope is used as real-time feedback, and finally, on the premise that the intrinsic structure of the sample is not damaged, the atomic-scale clean surface of the sample is exposed, and real-time in-situ analysis is carried out; compared with a traditional external preparation or in-situ cleaning technology, the method has the advantages that a pollution layer is removed by adopting a controllable mechanical contact effect, so that additional damages such as ion implantation, thermotropic degeneration and chemical pollution are fundamentally avoided, and an intrinsic structure of a material is really revealed on an atomic scale; and in addition, in-situ physical property measurement can be immediately carried out on the clean surface after cleaning.

The invention belongs to the technical field of water treatment membranes, and particularly relates to a high-durability hydrophilic polytetrafluoroethylene membrane and a preparation method thereof. According to the preparation method of the high-durability hydrophilic polytetrafluoroethylene membrane, an SDBS-SiO2-EVOH ternary compound system is adopted, SDBS constructs a transition activation layer, SiO2 forms a hydrophilic cross-linked network, EVOH anchors particles and enhances chemical resistance, the water contact angle of the membrane is reduced to 60.6 degrees through cooperation of SDBS, SiO2 and EVOH, the membrane is still stable after being soaked in a harsh chemical environment for a week, and the service life of the membrane is prolonged. The problem that a traditional surfactant modified film is poor in durability is solved. A solution in-situ deposition method is adopted, the whole process is carried out under the conditions of room temperature and 50 DEG C vacuum drying, damage of chemical modification (such as plasma and irradiation grafting) to the membrane structure is avoided, meanwhile, complex equipment is not needed, large-scale modification can be achieved, and no chemical pollution is generated. The device is suitable for severe environments such as water treatment and oil-water separation, can be matched with various separation devices such as a fixed bed and a dead-end filter, is simple in separation system flow, can adapt to different raw material systems through pressure regulation, and has great industrialization potential.

The invention provides a composition, a preparation method and application. Specifically, the carvacrol and the bacillus subtilis surfactin are combined, so that not only can the bacillus subtilis surfactin be used as an emulsifier of the carvacrol to increase the dispersion degree of the carvacrol in water, but also the carvacrol and the bacillus subtilis surfactin can achieve a synergistic effect to improve the inhibition effect on pathogenic bacteria. In addition, the composition provided by the embodiment of the invention can be gradually degraded under natural conditions, and is free of residues, free of chemical pollution, low in cost, high in biocompatibility and wide in application prospect.

The utility model discloses a wind power music device, and relates to the technical field of public facilities. According to the technical key points, the device comprises a ground beam, a plurality of first rib columns and a plurality of second rib columns are installed on the ground beam, a top beam is arranged at the tops of the first rib columns and the second rib columns, a transmission shaft is inserted into the top beam and can rotate, and a transmission device is connected to the upper end of the transmission shaft; the lower side of the transmission shaft is sleeved with a plurality of sound production devices which are vertically distributed. Through the transmission device and the sound production device, the music device can realize the functions of unpowered operation and music production. Energy needed for function realization is converted into wind energy and manpower, and external power supply is not needed. The overall material is weather-proof, the structure is stable, the process is simple, an acousto-optic environment and other chemical pollution are not generated, and the interactive experience of people with natural elements in a landscape space is enhanced; meanwhile, the music device driven by wind power also provides natural science popularization education for children.

This invention discloses a purely physical, sealed, ultra-long-term static sedimentation method for municipal sewage sludge and similar solid wastes, belonging to the field of solid waste resource utilization and environmental protection technology. This invention involves no chemical additives, no high-temperature incineration, and no mechanical disturbance throughout the entire process. It is suitable for various raw materials, including municipal sewage sludge, natural river and lake sediment, livestock and poultry manure sediment, and urban pipe network silt. Utilizing the natural physical laws of colloidal electrostatic agglomeration and overall gravity settling, it achieves stratified enrichment of solid waste. This invention is equipped with a pure physical water spray system to lock in odors and a slightly positive pressure unidirectional airflow structure to prevent overflow, completely eliminating chemical pollution and odor diffusion. Simultaneously, it features a fully automated, unmanned mechanical conditioning system to steadily optimize the enrichment environment, significantly improve processing efficiency, and save labor costs. The process involves a two-stage closed-loop treatment. First, it removes the core pollution source of heavy metals, which poses the greatest threat. Then, it turns the remaining organic matter into organic fertilizer. The entire process does not generate new pollution or allow pollutants to leak out. It solves the industry pain points of traditional incineration processes, such as high pollution and resource waste, as well as traditional static waste processes, such as low efficiency, narrow applicability, and residual pollution from chemical treatment. It is low-carbon, environmentally friendly, safe, stable, and can be promoted on a large scale, enabling efficient and bidirectional resource utilization of various types of sedimentary solid waste.

The utility model relates to the technical field of disinfection equipment, in particular to an ultraviolet disinfection cabinet. The device mainly aims at solving the problems that if a baby crib is not strictly disinfected, viruses and bacteria remain on the surface of the baby crib, cross infection is easily caused, the illness state of a sick baby is aggravated, and the existing disinfection mode is mostly manual wiping disinfection or traditional ultraviolet lamp irradiation; the problems of chemical pollution or insufficient action time of the disinfectant, incomplete ultraviolet irradiation coverage and the like are possibly caused, and manpower is consumed. In order to quickly, safely and economically disinfect the baby crib, the following technical scheme is provided: the baby crib disinfection cabinet comprises a disinfection cabinet, and two groups of cabinet doors are hinged to one side of an opening of the disinfection cabinet; the disinfection assembly is arranged in the cabinet door and is controlled by a disinfection control module mounted on the top wall of the cabinet door. The baby crib can be disinfected quickly, safely and economically, the risk of cross infection is reduced, and babies are prevented from being infected with new diseases or aggravated diseases due to infection.

The invention discloses a device and a method for preventing and controlling limnoperna fortunei in a pipeline based on a conductive composite covering net. The prevention and control device comprises a conductive layer, a metal net layer connected with the conductive layer, a heat conduction layer connected with the metal net layer, and a bonding layer connected with the heat conduction layer. According to the method, the original attachment condition of the limnoperna fortunei is changed by utilizing the destructive effect of current on the cell structure and functional activity and arranging the net-shaped structure with the current on the inner wall of the pipeline, the byssus attachment process of the limnoperna fortunei is inhibited through the current generated by the metal covering net in the early stage of attachment of the limnoperna fortunei, and the effect of preventing attachment is achieved. The limnoperna fortunei prevention and control device is attached to the inner wall of a pipeline, can be used after being powered on, is free of chemical pollution, provides a green prevention and control technology capable of being popularized for water conservancy projects, and can achieve long-acting protection.

The invention discloses an intelligent gas micro differential pressure calibration method based on multi-sensor fusion, and relates to the technical field of clean room differential pressure calibration, and the method comprises the following steps: unifying clock synchronization differential pressure, temperature, humidity and components, applying a step, carrying out DTW registration, and constructing a hysteresis characteristic, a pollution state and a residual error file before fusion; re-marking wet jump hysteresis, solving a steady-state multi-channel immune net drift rate, and entering a model to obtain a dominant coefficient, a label and evidence; generating a calibration sequence and a threshold configuration table according to coefficients, defining channel switching and sampling points, and binding the channel switching and sampling points with evidences; acquiring a new track, recalculating features and residual errors, reconstructing a threshold value and an observation window, and generating a parameter set and a log in sequence; and retesting, checking and combining the parameters, the configuration table, the track fragment and the log as a release packet, and signing. Chemical pollution drift and aging drift are separated without shutdown, residual errors are dynamically corrected, a threshold value is updated, and the maintenance cost is reduced.

The present application relates to the technical field of agricultural weeding equipment, and aims to provide a mechanical-laser collaborative weeding vehicle, which has the characteristics of precise weeding, no damage to crops and no chemical pollution. The technical scheme is a mechanical-laser collaborative weeding vehicle, characterized in that the weeding vehicle comprises a vehicle body, a laser weeding unit, a mechanical weeding unit, a navigation lighting unit and a controller.

The invention discloses a double-metal processing method for a new energy cylinder crankshaft. The method comprises the following steps: pretreating a base material; preparing a composite layer through laser cladding; interface strengthening treatment; and precisely machining. The method has the beneficial effects that through the parameter optimization algorithm in the step S2, the density of the composite layer is improved to 99.2%-99.8%, and the density fluctuation problem of a traditional process is solved; an interface strengthening algorithm in the step S3 enables the bonding strength to be stable to be larger than or equal to 520 MPa, and the risk of composite layer stripping is avoided; the roughness quantification model in the step S4 realizes that Ra is less than or equal to 0.6 [mu] m, and meets the high-rotating-speed wear-resistant requirements of the new energy crankshaft; the whole process is free of chemical pollution and meets the green manufacturing requirements of new energy automobiles.