53results about How to "Cause negative impact" patented technology

The invention relates to a method for deleting duplicated data in a file system in real time, and belongs to the technical field of computer data storage. In a file system establishment stage, a file metadata table, a data block index and a file constitution table are set in an embedded database; and in a file system operation stage, operating commands initiated to the file system by applications are received and responded through a file system driver, and include establishing a new file, writing data to an existing file, reading data from the existing file and deleting the existing data. The method simultaneously supports fixed-length and variable-length file blocking methods, and can delete the duplicated data in the file system in real time, save storage space and improve the utilization efficiency of storage equipment; and the process of deleting the duplicated data is completely transparent to the applications and a user, the file operation of various conventional applications is seamlessly compatible, and almost all negative effects on the user experience are avoided.

The invention relates to the technical field of agricultural fertilizer, particularly to a multifunctional synergist of a compound fertilizer suitable for calcareous soil of dry land, and application of the multifunctional synergist. The synergist is composed of, in percentage by mass, 40-70% of super-absorbent resin, 15-25% of citric acid and the salts thereof, 10-20% of a nitrification inhibitor, 4-10% of polyborate and 1-5% of EDDHA (ethylenediamine di-o-phenyl acetate)-microelement chelate. The synergist prepared according to the invention can be used as an additive of a compound fertilizer or applied together with various common compound fertilizers or formula fertilizers to exert the function of preventing and controlling the loss ways of nitrogen, phosphorus and potassium simultaneously, and can realize one-time total-nutrient fertilizer application; and the synergist has multiple functions of stabilizing fertilizer by slow release, holding water and resisting drought, improving soil with nutrients, saving labour, increasing production, etc.

The invention belongs to the field of hygiene and relates to a bacillus subtillus degrading bacterial colony sensing signal and use of bacillus subtillus degrading bacterial colony as an antiseptic, in particular to bacillus subtillus degrading gram-negative bacterial colony sensing signal and the formation of a bacterial biofilm of the bacillus subtillus degrading gram-negative bacterial colony. In the use of the degrading bacterial colony sensing signal, a proper concentration of the bacillus subtillus is 5*102 to 5*104cfu / ml. The bacillus subtillus is further used as antiseptic to inhibit the bacteria such as pseudomonas, agrobacterium, enterobacteriaceae and vibrionaceae. The antiseptic can be ointment for external use, liquid preparation for external use, oral tablet, oral liquid, disinfectant, clearing agents or water quality improving agent. The consistency of the bacillus subtillus serving as the antiseptic is 105 to 106 cfu / g. The use of the bacillus subtillus provided by the invention and the antiseptic inhibit the formation of biofilm of disease-causing bacteria and the growth of bacteria by using microbial quorum-sensing inhibition instead of preventing and sterilizing bacteria by compound which is adopted by most of the conventional antiseptic; therefore, the problem of drug resistance in the antimicrobial process is avoided.

The invention relates to a method for recycling waste polyurethane. In the presence of a catalyst, high temperature steam is used for thermal cracking on waste polyurethane. The cracking products are subjected to separation and purification to obtain acid, alcohol and oligomers thereof, micromolecular polymeric materials such as isocyanate or filler and fuel oil. The recycling method overcomes the disadvantages of a traditional physical recycling method, such as high recycling cost and environmental pollution caused by heat recovery, and avoids the defects of a traditional high temperature thermal cracking method, such as susceptibility to fire, low thermal efficiency, carbon formation and short service life of equipment. After treatment, the recycling method does not generate new waste or have a negative impact on the environment.

The invention discloses a capsulated liquid feed capable of preventing suckling pigs from diarrhea. The capsulated liquid feed capable of preventing the suckling pigs from diarrhea is characterized in that the capsulated liquid feed is spherical capsule granules of which the diameter is 2-10mm, and the granules comprise gelatinous layers positioned outside and liquid medicine cores packaged in the gelatinous layers; the granules comprise the following components in percentage by weight: 5-10% of glue, 1-3% of a traditional Chinese medicine liquid and the balance of a nutrient solution and a fresh keeping preservative, wherein the traditional Chinese medicine liquid comprises the following components of medicinal materials in parts by weight: 25-35 parts of astragalus membranaceus, 10-25 parts of Chinese yam, 10-25 parts of honeysuckle, 20-35 parts of haw, 15-25 parts of smoked plum and 15-25 parts of licorice roots. The capsulated liquid feed disclosed by the invention has the advantages of being favored by animals, being easy to digest, being easy to absorb, having a health-care efficacy, having no medicine resistance to germ viruses, having no harmful remains of medicines. The invention further discloses a preparation method of the capsulated liquid feed capable of preventing the suckling pigs from the diarrhea.

A multi-stage process detects and identifies radiation, explosives, and special materials within a shipping container. The process utilizes radiation sensors configured as nodes on a distributed network. The process collects radiation data from the nodes. The radiation data is associated with the container and its contents. The collected radiation data is dynamically adjusted according to dynamically changing background radiation data, such as relating to water, land, air, ground, and other structures. The process compares collected and adjusted radiation data to spectral images representing isotopes to identify one or more isotopes present. Identified isotopes are corresponded to possible materials that they represent. The possible materials are compared with the manifest of the container to confirm the identity of materials contained in the container or to detect and / or identify unauthorized materials in the container. A neutron pulse device could be used to identify shielded materials, explosives, and other types of materials.

The upper structure (2) of the driveway is embodied with a multilayer mode, the layer which works as surface and the first layer includes solid composition, and the composition includes glass particle, organic adhesive and polyurethane adhesive. The glass particle is the mixture of beaded glass and chunk glass. The positive optical character of the compound causes that the color of the adhesive can transmits continuously between the glass particles to the surface, thereby that the surface can be seen even when the glass particles are abraded or the adhesive is dirtied or the surface side becomes turbid. In this way the color stability can be ensured even the surface is abraded. Therefore the surface keeps beautiful or the indicative color.

The invention relates to a composite passivator for heavy metals in soil and a using method of the composite passivator and belongs to the technical field of soil treatment. The composite passivator for heavy metals in soil is prepared from the following components in percentage by mass: 30%-50% of phosphate ores, 15%-25% of calcium hydrogen phosphate, 15%-25% ofcalcium magnesium phosphate fertilizer and 5%-20% of sintered red mud. The using method disclosed by the invention comprises the steps: mixing the composite passivator for heavy metals in soil with soil polluted by heavy metals according to a proportion of (1-5):100, adding water to keep the soil water content be 75% of the maximum water holding capacity of a field, and keeping the soil water content at normal temperature for 40 days. The soil polluted by the heavy metals is passivated and remediated by utilizing cheap ores and wastes, controlling pollution by using the wastes is realized under the condition that the cost is relatively low, and dverse effects to the soil environment cannot be caused. In addition, an adding method disclosed by the invention is relatively simple and capable of adapting to the large-scale remediation of soil polluted by the heavy metals.

The invention discloses a compound quaternary ammonium salt low-temperature disinfectant which comprises a quaternary ammonium salt mixture, an anti-freezing agent and water, and the quaternary ammonium salt mixture is a mixture of single-chain quaternary ammonium salt, double-chain quaternary ammonium salt and heterocyclic quaternary ammonium salt. The heterocyclic quaternary ammonium salt, the single-chain quaternary ammonium salt and the double-chain quaternary ammonium salt are compounded and cooperated so that the sterilization effect can be greatly improved. The bactericide is a quaternary ammonium salt compound, has no corrosivity and no pungent smell, does not cause negative effects on operators and the environment, and can be used for disinfection in the environment of -40 DEG C or above. The invention further provides a preparation method of the compound quaternary ammonium salt low-temperature disinfectant.

The invention discloses a composition capable of controlling release through ion concentration, the composition comprises gel particles and a dispersion system, and the gel particles comprise a matrixand a particle core; the matrix is a gel layer, and the matrix at least comprises a polyhydroxy polymer; the dispersion system comprises a water-soluble metal salt and water, and the total mass of metal ions in the metal salt accounts for 0.05-5% of the total mass of the dispersion system. According to the composition, coating is formed through a matrix, so that different components are isolatedfrom each other, and coexist stably for a long time; and through concentration control, the matrix can release all the components into the dispersion system. The invention also discloses a preparationmethod and a use method of the composition capable of controlling release through ion concentration.

The invention belongs to the field of hygiene and relates to a bacillus subtillus degrading bacterial colony sensing signal and use of bacillus subtillus degrading bacterial colony as an antiseptic, in particular to bacillus subtillus degrading gram-negative bacterial colony sensing signal and the formation of a bacterial biofilm of the bacillus subtillus degrading gram-negative bacterial colony.In the use of the degrading bacterial colony sensing signal, a proper concentration of the bacillus subtillus is 5*102 to 5*104cfu / ml. The bacillus subtillus is further used as antiseptic to inhibit the bacteria such as pseudomonas, agrobacterium, enterobacteriaceae and vibrionaceae. The antiseptic can be ointment for external use, liquid preparation for external use, oral tablet, oral liquid, disinfectant, clearing agents or water quality improving agent. The consistency of the bacillus subtillus serving as the antiseptic is 105 to 106 cfu / g. The use of the bacillus subtillus provided by theinvention and the antiseptic inhibit the formation of biofilm of disease-causing bacteria and the growth of bacteria by using microbial quorum-sensing inhibition instead of preventing and sterilizingbacteria by compound which is adopted by most of the conventional antiseptic; therefore, the problem of drug resistance in the antimicrobial process is avoided.

The invention relates to a multifunctional projection device, which comprise a light source, a lens set, an image element, a projection lens and at least one image deceptive device which can lead projection image out of focus, and a image rocking mechanism which can ensure the projection image to rock; wherein, the lens set, the image element, the projection lens and the deceptive device(s) are mounted on a light path in turn; the image deceptive device can be arranged in front of the projection lens and / or between the image element and the projection lens; the image rocking mechanism is connected with the image element. The image deceptive device and the image rocking mechanism controlled by a certain program are used for carrying out the processes of continuous intensity regulation, out-of-focus and rocking on continuously displayed projection image so as to lead spectators to have visual fatigue to achieve the effect of rapid inducing sleep. The device thereof is simple in structure and convenient in operation, has fine hypnotic function, effectively helps patients alleviate fatigue, eases pressure, and has multiple functions, for example, the device can be used as a projection planetarium, common projector and the like, when a mechanism which can adjust projection angles at will is arranged on the device.

The invention discloses a fast-curing ink binder and a preparation method thereof. The fast-curing ink binder is prepared from the following raw materials in parts by mass: 40-45 parts of resin, 30 parts of vegetable oil, 25-30 parts of ink oil and 1 part of molten aluminum. The preparation method of the quick-curing ink binder comprises the following steps: putting the vegetable oil and part of the ink oil into a reaction kettle, and performing stirring and heating; uniformly stirring the molten aluminum and part of printing ink oil at a high speed in advance; continuously adding part of the printing ink oil, performing cooling, adding the molten aluminum mixture, and performing stirring and heating. Compared with the light industry recommended QB / T2624-2012 standard, the bonding speed of the produced bonding material is greatly improved, the efficiency of printing operation can be improved, meanwhile, the gloss and the flow index also meet the standard, and no negative influence is caused on a printed matter.

The invention relates to the field of sterilizing and washing, in particular to a novel sterilizing solution. The sterilizing solution comprises the following components in parts by mass: 15-30 parts of clove, 10-20 parts of rhizoma coptidis, 10-20 parts of mint, 10-20 parts of villous amomum fruits, 5-10 parts of semen cuscutae and 500-700 parts of an ethyl alcohol solution. After all the components of the solution are mixed according to the proportion, except that the solution part adopts ethyl alcohol, the other components are traditional Chinese medicine components, all the traditional Chinese medicine components can be mixed with other ethyl alcohol by adopting the conventional production methods in the field, the novel sterilizing solution has the effects of sterilization, disinfection and the like, the solution can be widely applied to crowded places such as public places, hospitals, schools and troops, the breeding of bacteria and viruses can be avoided, and even though the solution is used for a long time, negative effects cannot be caused to a human body.

The invention discloses a burn or scald clinical auxiliary treatment bed and a use method thereof. The burn or scald clinical auxiliary treatment bed comprises a bed body. Side rails are fixedly installed on the bed body through supports on the two sides and movably connected with first driving devices. A transverse rail is fixedly connected between the two first driving devices and slidingly connected with an itching stopping device and a second driving device. The itching stopping device and the second driving device are fixedly connected. A control rod is fixedly connected with the bed body. A patient can find out the itching position by controlling the control rod, an air flow column cannot injure a wound or cause negative effects on the wound, and meanwhile the air flow column has a ventilating effect and is more beneficial for restoring the burn / scald wound; generally, low-degree itching can be stopped under the impact of the air flow column, high-degree itching can be treated through further operation, and meanwhile itching stopping can be realized by controlling a gas drug pumped out of the gas pump to be sprayed onto the itching wound through a spraying nozzle.

The invention discloses a solar plant protection unmanned aerial vehicle, comprising a fuselage and a spraying part, and also comprises a power supply part. The power supply part comprises a solar panel arranged on the outer wall of the fuselage. The solar panel is connected with a voltage regulating and rectification module and a rectifier diode in series. The power supply part further comprisesa lithium battery arranged on the fuselage. The lithium battery is arranged in parallel with the solar panel. The spraying part comprises a liquid storage tank and spraying heads. The liquid storage tank is arranged at the bottom of the fuselage. The spraying heads are fixedly connected with the fuselage. The spraying heads are connected with the liquid storage tank through liquid pipelines. According to the novel solar unmanned aerial vehicle, the unmanned aerial vehicle can be powered by the solar panel and the lithium battery jointly during flight, the power consumption of the lithium battery is reduced, so that the effective operating time of the unmanned aerial vehicle is increased, and the operating efficiency is improved.

The invention belongs to the power equipment field, and relates to a permanent magnetic engine. The permanent magnetic engine includes a frame, wherein the frame is divided into a lower frame and an upper frame; the lower frame includes a pedestal; support bases on the pedestal are connected with a rotating shaft through bearings; a rotation permanent magnet is arranged on the rotating shaft; lifting screws are movably arranged on the pedestal; the upper frame includes a horizontal lifting base; the horizontal lifting base is connected with the lifting screws through threads; movable support frames are fixedly connected with the horizontal lifting base; the movable support frames are connected with a crankshaft through bearings; a connecting rod shaft neck of the crankshaft is movably provided with a connecting rod; the other end of the connecting rod is movably provided with a reciprocating lever; a reciprocating permanent magnet is arranged at the front end of the reciprocating lever; and the crankshaft is provided with a flywheel and is connected with the rotating shaft through a gear drive mechanism. According to the principle that the same magnetic poles are repellent to eachother, the permanent magnetic engine integrates the rotating shaft with the crankshaft so as to enable the same poles of different permanent magnet materials to be mutually attached to be repellent toeach other, so as to enable the rotating shaft to obtain the rotation power to output the power to the outside to achieve the effect of taking the magnetic force as the power source and converting the power source into mechanical energy.

The invention discloses a power supply device having wide input adaptability. The input working voltage range is expanded by automatic switching of high-voltage and low-voltage secondary windings of a transformer; the switching oscillation is prevented through controlling power supply switching by a controller with return difference; static equilibrium is achieved by trigger resistors connected in series and ordinary RC dynamic balance is combined to solve the problem of overvoltage damage caused by partial voltage unbalance of silicon controlled rectifiers connected in series; and a high-power field effect transistor and a voltage stabilization diode form millisecond parallel voltage-limiting protection, transformation isolation and ordinary millisecond transient protection are combined to form complete protection for lightening and switching overvoltage of electricity from a ground line of a power transmission line. By the power supply device, the ultrawide input voltage adaptability of a power supply is achieved, and adverse influence caused by the power supply cannot be generated.

#CMT# # / CMT# The system (10) has a cover element (14), and a roof drive unit. The roof drive unit moves the cover element between the opening and closed positions of roof aperture. A frame element (16) is provided to hold the cover element. The frame element and the cover element are adapted corresponding to different roof apertures. #CMT# : # / CMT# An independent claim is included for method for manufacturing lifting / sliding roof. #CMT#USE : # / CMT# Modular system for lifting / sliding roof e.g. panorama roof of vehicle. #CMT#ADVANTAGE : # / CMT# Since the frame element and the cover element are adapted corresponding to different roof apertures, the modular system can be used efficiently by roof of different vehicles. The cost of the modular system is reduced. The space utilization of the modular system is improved. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawings show the schematic views of the lifting / sliding roof. 10 : Modular system 12,22 : Lifting / sliding roof 14 : Cover element 16 : Frame element.

The invention discloses a corn base fertilizer for phosphorus deficiency soil, and relates to the technical field of fertilizers. The corn base fertilizer is prepared from the following raw materialsin parts by weight: 4-6 parts of nitrogen, 10-15 parts of phosphorus, 3-5 parts of potassium, 0.1-0.2 part of zinc sulfate, 1-3 parts of water-soluble organic substances, 1-3 parts of humic acid, 1-3parts of fulvic acid, 0.1-0.3 part of a synergistic factor and 0.1-0.3 part of a gamma-SIPF soil factor. The corn base fertilizer is good in corn yield-increasing effect, does not cause negative effect on soil, does not burn seeds, is high in emergence rate, is safe to use, and is good in growth vigor.

The invention relates to the technical field of beef cattle breeding, and specifically relates to a beef cattle breeding method. According to the invention, step recording chips are embedded into thelegs of cattle, each step recording chip is equipped with a unique ID number, and a central processing unit collects data of the step recording chips so as to be used for calculating the exercise amount of each head of cattle; a weighbridge is installed at the access of a cattle housing to weigh the weight of the cattle when going out of and returning back to the cattle housing every day, the difference of the weight of the cattle when going out of and returning back to the cattle housing is calculated, whether the cattle are full or sick is detected according to the weight difference; different standards of exercise steps are set for the cattle, whether the exercise of the cattle exceeds or does not reach the standard is monitored in real time so as to detect whether the exercise amount of the cattle is appropriate and matched with the weight of the cattle or not, thereby preventing the occurrence of excessively fast consumption of nutrients in the body of the beef cattle or poor physical condition of the cattle to result in slow growing rate of the beef cattle, prolongation of putting the beef cattle to the slaughter market and reduction of economic benefits of farmers.

The invention relates to the field of sterilization washing, in particular to a sterilized solution. The sterilized solution comprises components in parts by mass as follows: 15-30 parts of folium artemisiae argyi, 10-20 parts of rhizoma atractylodis, 10-20 parts of herba cistanches, 10-20 parts of centella asiatica, 5-10 parts of belvedere fruit and 500-700 parts of an ethanol solution. According to the sterilized solution, the components of composition are mixed in proportion, the solution part adopts ethanol, the other components are traditional Chinese medicine, the traditional Chinese medicine components can be mixed with ethanol with a conventional preparation method in the field, effects of sterilization, disinfection and the like can be achieved, and the sterilized solution can be widely applied to densely populated places such as public places, hospitals, schools, troops and the like, can avoid bacterium and virus breeding, and does not have adverse effects on a human body even though the sterilized solution is used for a long time.

The invention discloses a magnetic orientation pattern and a preparation method thereof. The preparation method of the magnetic orientation pattern comprises the steps of: providing a substrate layer; coating a first coating including multiple first magnetic pigments on the substrate layer; drying and curing the first coating; coating a second coating on the dried or cured first coating and swelling the first coating by the second coating; performing magnetic orientation on the first magnetic pigments in the first coating which is swelled by the second coating; drying or curing the second coating and the first coating which is swelled by the second coating so as to form the magnetic orientation pattern. Through the way mentioned above, thickness of a magnetic pigment carrying layer can be reduced fully, and the use amount of the pigments can be further reduced. Furthermore, according to the magnetic orientation pattern and the preparation method thereof, excellent diversified optical effects can be obtained, ink film performances in special demands can be obtained, and a set magnetic induction image also can be produced.

The invention discloses a method for in-situ pyrolysis of copper tailings by biomass, which comprises the following steps: 1) a foundation pit is dug in a metal mine tailing pond area, and ignition foundation trenches is dug in two sides of the foundation pit; (2) the copper tailings and the agricultural and forestry waste biomass raw materials are naturally air-dried and crushed, and the copper tailings are broken and sieved for later use; (3) thick branches are laid at the bottom of the foundation pit, laying wheat straw and miscanthus are laid on the upper layer, then a layer of pine needles are laid, copper tailings are laid in the middle, rice straw and miscanthus are laid, and copper tailings are laid on the top layer; (4) biomass is ignited at the ignition foundation trench, the ignition foundation trench is closed when the biomass and the copper tailings are combusted for 2-5 min, the top of the foundation pit is covered with an iron sheet, and combustion is in an oxygen isolation state; and (5) after the biomass and the copper tailings are fully combusted until flames are extinguished and the temperature is reduced, the combusted biomass and the copper tailings are fully and uniformly mixed to obtain the copper tailing biochar. The problems of mine repair and utilization can be effectively solved.

The invention relates to a heating cabinet, which comprises: a cabinet body in which a cavity is formed; a temperature control device that comprises a heating unit arranged in the cabinet body and used for emitting heat, and the heating unit comprises a first substrate, a transparent resistive film arranged on the first substrate, a positive electrode lead and a negative electrode lead, wherein the positive electrode lead and the negative electrode lead are electrically connected with the transparent resistive film, and the transparent resistive film is used for generating heat after being powered on through the positive electrode lead and the negative electrode lead. The transparent resistive film is arranged in the cabinet body for heating, the cabinet body can be kept dry, and clothes,shoes, socks and the like are dried and dehumidified; and meanwhile, the transparent heating film cannot cause negative influence on the cabinet body visually.

The present invention relates to a method for cultivating cannabis seedlings. The method comprises the step of adding grape seed proanthocyanidins to a medium of cannabis seedlings. The grape seed proanthocyanidins added in the method of the invention are derived from grape seeds, are a natural antioxidant existing in plants, are highly soluble in water, and are easily absorbed by the cannabis seedlings, thereby improving the tolerance of the cannabis seedlings to cadmium stress, and causing no negative influence on the cannabis seedlings in the absence or low content of cadmium stress. The method of the present invention does not cause secondary pollution or damage ecological balance compared with conventional methods in which heavy metal chelating agents or heavy metal adsorption microorganisms are added. The method of the invention has the advantages of quick effect and good controllability, and is very suitable for cultivation of cannabis, thereby better enabling cannabis to repaircadmium-contaminated soil.

The invention provides a method for preparing a plate with dustproof function, which includes a main shaft and baffles located at both ends of the main shaft, and a storage device for storing and storing a dustproof cloth is installed on the baffle, and the storage device is cylindrical , and parallel to the main shaft, the installation position of the storage device is close to the outer edge of the baffle; one end of the storage device is plugged and fixed with the baffle, and the other end is fixed with the baffle parts are fixed; when the storage device is in the protection mode, the dustproof cloth in the storage device is pulled out, surrounded by the main shaft as the center into a cylindrical shape, and forms a closed space with the baffle; when the storage device When the storage device is in the non-protection mode, the dustproof cloth is retracted into the storage device. The beneficial effect of the present invention is: the design structure is simple and easy to operate, and can effectively improve the cleanliness of cables and wire cores stored on the main shaft.

The invention discloses a piling type channel ecological treatment structure. The piling type channel ecological treatment structure comprises multiple layers of hollow brick and pressing loading grass planting brick mixed pavement structures which are sequentially arranged from bottom to top in a narrowing manner. Each layer of mixed pavement structure comprises a line of cube hollow bricks whichare arranged at intervals along the bank, wherein vertical corner angles of the cube hollow bricks are opposite, the adjacent hollow bricks are connected together through three-direction axis fixingpieces, a pressing loading grass planting brick abutting against the side faces of the hollow bricks is arranged between the two hollow bricks, the pressing loading grass planting brick is close to the bank, and one hollow brick of the upper-layer mixed pavement structure is stacked at the top rear corner position of the pressing loading grass planting brick; each three-direction axis fixing pieceis provided with three mutually-perpendicular connecting rods stretching out from the same original point position, wherein the two horizontally-arranged connecting rods of the three-direction axis fixing piece are inserted in inserting holes in the side faces of the two left-right adjacent hollow bricks correspondingly, and the other vertically-arranged connecting rod is inserted in a top face inserting hole in the corresponding hollow brick of the lower-layer mixed pavement structure. The piling type channel ecological treatment structure can achieve a protection effect, and the ecology andlandscape effects can be embodied.

The invention discloses a clinical auxiliary treatment bed for burns or scalds and a use method thereof. There is a horizontal rail fixedly connected between them, and an antipruritic device and a driving device two are slidably connected on the horizontal rail, and the antipruritic device and the driving device two are fixedly connected, and a joystick is also fixedly connected on the bed body. The invention achieves that the patient can find the itching place by operating the joystick, and the airflow column will not damage the wound and will not cause negative effects on the wound. At the same time, the airflow column itself has a ventilation effect, which is more beneficial to the recovery of burn wounds The relatively small itching will be relieved after being impacted by the airflow column, and the relatively high degree of itching can be further operated. At the same time, the gas pumped by the air pump can control the medicine to be sprayed onto the itching wound through the nozzle to achieve itching relief.