638results about How to "Uniform coverage" patented technology

The invention relates to the technical field of optical detection, in particular to a workpiece surface defect detection method and system based on the optical technology, and the method comprises the following steps: S1, generating a curvature model of a workpiece; s2, dynamically adjusting the irradiation angle and the light spot shape of a light source according to the curvature model in the S1; s3, adjusting the focal length of the detection equipment in real time; s4, imaging acquisition is carried out on the workpiece at the same time through multiple angles; s5, correcting image distortion caused by surface curvature change, and fusing the multi-angle images into a high-precision workpiece surface image; s6, defect features of the surface of the workpiece are extracted, defects are classified, positions are marked, and a defect detection report is generated; according to the invention, by dynamically adjusting the light source and the focal length and combining multi-view imaging and advanced image processing technologies, efficient and accurate defect detection is realized, and the product quality and the production efficiency are remarkably improved.

The invention discloses a bridge pier stud crack automatic detection system based on a wall-climbing robot, and relates to the technical field of crack detection, and the system realizes closed-loop operation from accurate crack detection to intelligent repair through a crack detection module and a repair material intelligent spraying detection module. The crack detection module uses a multispectral imaging device, a thermal imaging camera and a laser scanning technology, can collect a multispectral difference value G (x, y), surface temperature distribution T (x, y) and a depth matrix D (x, y) of a crack area, extracts a crack boundary B (x, y) through a high-precision algorithm, and calculates a crack volume Vc. And the repairing material intelligent spraying detection module dynamically calculates the volume Vm of the repairing material according to the volume of the crack, and the SLAM technology is utilized to optimize the spraying path and parameters, so that uniform coverage and efficient utilization of the repairing material are ensured. The system greatly improves the precision of crack detection and repair, and avoids material waste and repair omission.

According to the sound box directional broadcasting method and device, the equipment and the storage medium provided by the invention, the initial sound box parameters and the sound field data of the target area are acquired, and the sound field data comprise the sound box array position information and the site characteristic information; constructing an acoustic model of the target area according to the site characteristic information and the initial sound box parameters, and simulating a coverage effect of sound in the target area; according to a simulation result, optimizing the initial sound box parameter to obtain a target sound box parameter; and according to the target loudspeaker box parameter, setting a loudspeaker box array position and a beam forming parameter of the loudspeaker box in the target area. According to the invention, by accurately controlling the position of the loudspeaker box array and the beam forming parameters, the sound can be ensured to uniformly cover the target area, and the common problems of non-uniform sound, interference and the like in the traditional broadcasting system can be avoided at the same time. According to the directional broadcasting method, sound can be effectively concentrated to a target area, and interference to a non-target area is reduced.

The invention relates to the technical field of welding devices, in particular to an aluminum alloy door and window welding machine which comprises a mounting support, an air cylinder is mounted at the upper end of the mounting support, an output shaft of the air cylinder penetrates through the mounting support, and a welding mechanism is mounted on the output shaft of the air cylinder and comprises a first mounting plate fixedly connected with the output shaft of the air cylinder. An exhaust mechanism is mounted on the other side of the first mounting plate, four sets of first electric telescopic rods are mounted on the inner side of the mounting support, clamping mechanisms are mounted on output shafts of the first electric telescopic rods, and welding seams between arc-shaped window frames can be welded through mutual cooperation of second electric telescopic rods and first welding heads; and welding can be conducted on inner side welding seams of the assembling grooves, welding is more comprehensive, connection between the arc-shaped window frames is more stable, through mutual cooperation of a fourth gear and a third electric telescopic rod, comprehensive cleaning is conducted on the peripheries of the welding seams, cracks and bubbles during welding are avoided, and the welding seams are firmer.

The invention belongs to the technical field of electrochemistry, and particularly relates to a gas diffusion electrode for efficiently producing hydrogen peroxide in situ and a preparation method thereof. The gas diffusion electrode is composed of a carbon paper substrate, a carbon black gas diffusion layer and a carbon nitride modified carbon nanotube catalyst layer. The preparation method of the gas diffusion cathode comprises the following steps: mixing a carbon nanotube, g-C3N4, isopropanol, 60wt% of PTFE emulsion and water to prepare a mixed solution, and loading a compound of the carbon nanotube and g-C3N4 on one side of a carbon paper substrate by adopting an ultrasonic impregnation mode to prepare a catalyst layer; the other side of the carbon paper substrate is impregnated with carbon black and PTFE emulsion to prepare a diffusion layer, and the diffusion layer is uniformly coated, dried and annealed to prepare the gas diffusion cathode. The gas diffusion electrode is used for efficiently producing hydrogen peroxide through in-situ electrocatalysis, the yield of hydrogen peroxide can reach 1050 mg / L after 1.5 h, the current efficiency is 76%, and the energy consumption is 5.56 KWh / Kg.

The invention relates to the technical field of bearing seats, and discloses a self-lubricating dustproof bearing seat which comprises an upper end cover, a lower end cover hinged to the lower portion of the upper end cover, a self-lubricating mechanism and a dustproof sealing ring which are arranged in the upper end cover and the lower end cover, a shaft sleeve arranged in the self-lubricating mechanism, and a shaft core movably installed in the shaft sleeve and the dustproof sealing ring. The self-lubricating mechanism comprises an external backflow assembly rotationally connected to the inner wall of the upper end cover and the inner wall of the lower end cover and an internal backflow assembly rotationally connected to the outer wall of the shaft sleeve, a reasonable lubricating channel path is obtained through the arranged oil storage assembly, the movable assembly and the rolling assembly, it is ensured that a lubricating agent can evenly and smoothly reach all lubricating points, and the lubricating efficiency is improved. Lubricating oil in the oil storage cavity flows into the oil outlet pipe through the oil outlet groove and then flows into the oil guide groove, so that the contact faces of the rolling wheel and the bearing outer ring and the bearing inner ring are lubricated, and the effect of improving the overall operation quality and reliability of equipment is achieved.

The invention discloses energy-saving high-pressure cleaning equipment for square and rectangular pipes, and relates to the technical field of high-pressure cleaning, the energy-saving high-pressure cleaning equipment comprises a main body frame, a cleaning module is mounted above the main body frame, a rotational flow collaborative cleaning mechanism is arranged in the cleaning module, and the rotational flow collaborative cleaning mechanism is used for changing a water flow mode to ensure internal and external water flow collaborative high-pressure cleaning; the introduced air conveying bin only surrounds the outmost periphery of the nozzle, air flow flows along spiral water flow on the outmost periphery of the nozzle after being discharged in a vertical flowing mode, through the design, the peripheral water flow obtains additional momentum under the action of wind power, and then the momentum is transmitted to the internal water flow through collision among fluid molecules; according to the process, redistribution of energy is achieved, energy of internal water flow is supplemented, and water flow impact force borne by the peripheral square and rectangular pipes and the internal square and rectangular pipes is more balanced through the effect of wind power on the peripheral water flow and transmission of the energy to the internal water flow.

The invention relates to the technical field of metal surface treatment, and discloses sheet metal part spraying and plastic spraying equipment and a technological method.The sheet metal part spraying and plastic spraying equipment comprises a spraying chamber and a conveying mechanism, the spraying chamber is arranged in the middle of the conveying mechanism, and a material distributing plate is installed at the top of the spraying chamber; two spraying mechanisms are arranged on the side, close to the material distributing plate, of the interior of the spraying chamber, a plurality of evenly-distributed spraying guns are arranged in the two spraying mechanisms, an air pressure tank and a conveying pipe are installed on the side, close to the material distributing plate, of each spraying gun, and a pump body is installed on the side, away from the spraying guns, of each conveying pipe; and a paint storage tank is arranged on the rear side of the spraying chamber. The position and the angle of the spraying gun are accurately controlled, and the automatic adjusting device is utilized, so that the spraying gun can be dynamically adjusted according to the surface shape and the size of the sheet metal part, and all corners of a workpiece are uniformly and comprehensively covered with paint.

The invention relates to the technical field of farm disinfection, in particular to an intelligent disinfection system for a farm. The system comprises an initial determination module, a periodic disinfection module, an environment monitoring module, a first analysis control module, a second analysis control module and a feedback correction module. According to the method, the initial disinfection parameter cluster of each breeding area in the target breeding farm is determined according to the actual growth stages of the breeding targets and the actual number corresponding to each actual growth stage, each breeding area is periodically disinfected according to the initial disinfection parameter cluster, and each breeding area is monitored in real time so as to be singly judged; and performing first-class adjustment and second-class adjustment on the initial disinfection parameter cluster based on a first verification result and a second verification result in combination with the first verification result and the second verification result to determine whether the initial disinfection parameter cluster is subjected to first-class adjustment and second-class adjustment. And according to the first analysis control result and the second analysis control result, determining whether to perform feedback correction on a preset initial disinfection period of each breeding area.

The invention discloses a nanoparticle / polyvinylidene fluoride composite piezoelectric gain photocatalytic antibacterial film and a preparation method and application thereof.The preparation method comprises the steps that a polyvinylidene fluoride solution serves as a core layer spinning solution, and photocatalytic nano sol serves as a skin layer spinning solution; and carrying out coaxial electrostatic spinning on the polyvinylidene fluoride solution and the photocatalytic nano sol to prepare the nano particle / polyvinylidene fluoride composite piezoelectric gain photocatalytic antibacterial film. According to the preparation method disclosed by the invention, nano-scale photocatalytic sol is fixed on the surface of micron-scale polyvinylidene fluoride in one step by utilizing an electrostatic spinning technology, so that the polyvinylidene fluoride is prevented from coating effective components, and the effective components are also prevented from blocking holes of polyvinylidene fluoride fibers; effective separation and directional migration of electrons and holes of sol on the surface are effectively promoted, and the capacity of photocatalytic nano sol for removing biological aerosol is improved. The preparation method is simple in industry, low in energy consumption and easy for large-scale production.

The invention relates to the technical field of dust separation, in particular to a convenient-to-clean bag-type dust collector for metallurgical casting. The bag-type dust collector convenient to clean for metallurgical casting comprises a bottom frame, an outer frame, a dust falling hopper, a dust discharging pipe, an air inlet pipe, an air outlet pipe, a supporting plate and a cloth bag, the top of the bottom frame is connected with the outer frame, the bottom of the outer frame is connected and communicated with the dust falling hopper, and the bottom of the dust falling hopper is connected and communicated with the dust discharging pipe. The left side of the lower portion of the outer frame communicates with an air inlet pipe. The first electric sliding rail drives the spraying pipe and the spraying head to move downwards and stretch into the cloth bag, it is guaranteed that compressed air can evenly cover the inner surface of the whole cloth bag, especially the lower area of the cloth bag, the problem of dust cleaning dead angles in a traditional dust cleaning mode is solved, and the dust cleaning effect is remarkably improved; due to the fact that the nozzle blows in the cloth bag, airflow cannot directly impact the surface of the cloth bag, physical abrasion of the cloth bag is reduced, and the service life of the cloth bag is prolonged.

The invention provides integrated circuit production and processing equipment, and relates to the technical field of integrated circuit processing, the integrated circuit production and processing equipment comprises a base, the base is provided with a positioning mechanism convenient for fixing an integrated circuit board, the base is provided with a gluing mechanism convenient for gluing and packaging, and the base is provided with a collecting mechanism convenient for recycling glue; the positioning mechanism comprises a vertical rod, the gluing mechanism comprises a support, a first T-shaped sliding block, a glue storage barrel and a valve plate, and the collecting mechanism comprises a constant temperature box, a collecting box, a second motor, an arc-shaped sliding rod and an arc-shaped scraping plate. According to the device, a gluing mode of erecting the integrated circuit board from top to bottom is set, glue naturally falls under the action of gravity, the glue amount can be more accurately controlled, the glue amount of each point is more uniform and consistent, and compared with a mode of plane gluing and waiting for natural leveling of the glue, the glue amount is more uniform and uniform by erecting the circuit board for gluing; the glue can quickly reach a designated position under the action of gravity and form a uniform glue layer, and extra leveling time is not needed.

The invention relates to the technical field of dust falling devices, and discloses a building construction dust prevention and falling device convenient to move, which comprises a base, a push rod is fixedly connected to the top of the base, a water tank is fixedly connected to the top of the base, a water pump is fixedly mounted at the top of the water tank, and a connecting shaft is rotatably connected to the inner wall of a fixing plate. Before humidification, a worker can rotate a rotary disc to adjust a sprayer, the humidification and dust falling range of the sprayer is enlarged, the contact opportunity of particles and water mist is increased, the dust falling effect is improved, and the practicability is high. When moving humidification is carried out, the reciprocating sliding groove drives the sprayer to move and spray, the spraying range is larger, the situation that dust falling is not carried out in too many blind areas is avoided, the efficiency and quality of dust falling operation are improved, it is guaranteed that water mist is evenly covered, and resources are saved.

The invention discloses a photoelectric wafer defect detection method, and belongs to the technical field of semiconductors. The detection method comprises the steps that the surface of a photoelectric wafer is covered with a quantum dot precursor solution, annealing is carried out, after a quantum dot film is formed, irradiation is carried out under ultraviolet light, a displayed fluorescence signal can mark defects on the surface of the photoelectric wafer, and the purpose of detecting the defects of the photoelectric wafer is achieved. The quantum dots used in the invention have excellent fluorescence efficiency and stability, and can provide a high-contrast marking effect in an SEM image. Therefore, the detection of micron-scale and nano-scale defects is more accurate, and the details are clearer. A traditional fluorescence labeling solution is limited in infiltration capacity in nanoscale defects and can only cover the surface. The quantum dots can penetrate into the defect to form a mark with the depth ratio as high as 1: 3. The depth marking capability is helpful for comprehensively knowing the internal structure of the defect and the defect extension condition. In addition, the quantum dots have excellent adaptability and multifunctionality, and show good stability and coupling effect under different types of wafer conditions.

The invention discloses a preparation method of a metalized vertical glass through hole. The preparation method comprises the following steps: modifying a target area of a glass substrate by adopting a laser irradiation method to form a denatured area; forming a first metal layer on the glass substrate in a sputtering manner; ablating the first metal layer corresponding to the denatured region by adopting an ultraviolet radiation method so as to expose the denatured region; etching the denaturation region by using a corrosive liquid to form a first blind hole; cleaning and drying the glass substrate; forming a second metal layer on the glass substrate in a sputtering manner; ablating the second metal layer at the bottom of the first blind hole by adopting an ultraviolet radiation method; etching the first blind hole by using a corrosive liquid to form a second blind hole; cleaning and drying the glass substrate; and repeating the steps (6)-(9) to obtain the metalized vertical glass through hole. According to the preparation method, the glass through hole with high depth-diameter ratio and good perpendicularity can be prepared, and meanwhile, the metal layer can be stably and uniformly attached to the inner wall of the glass through hole.

The invention belongs to the technical field of agriculture, and particularly relates to a method for improving thin, thin and hard black land to make nutrients and moisture efficiently utilized, in particular to a method for improving thin, thin and hard black land to make nutrients and moisture efficiently utilized. According to the method for improving the thin, thin and hard black land and improving the efficient utilization of nutrients and moisture of the thin, thin and hard black land, aiming at the characteristics of thin and hard land parcels, wide-narrow-row crop rotation, straw returning to the field and organic fertilizer applying are adopted, straw returning to the field and organic fertilizer applying are adopted to supplement soil organic matter, and a strip ploughing technology is adopted on a machine tool, so that the yield of the soil is increased; soil is not moved in a large area, and a strip tillage machine is only adopted to perform strip tillage operation at the seedling zone to form a seedbed structure with the upper part open and the lower part solid; an intertillage and deep scarification technology is adopted, a deep scarification machine for efficiently utilizing water and fertilizer in a thin and hard black soil area is used, a plow pan is broken, upper water and lower water are communicated, a rat channel component is arranged, a rat channel is formed after deep scarification, a small reservoir and a soil layer are formed below a plough layer, straw is fully returned to the field, organic fertilizer is additionally applied, and soil hardening and water and soil loss are reduced. The organic matter content and activity of the black soil layer are gradually recovered.

The invention provides a method and system for detecting the waterproof performance of communication equipment, and the method comprises the steps: monitoring the motion track and aggregation state of liquid drops on the surface of the equipment in real time through employing a high-speed camera technology in an atomization process, and recognizing the aggregation region of the liquid drops through an image processing algorithm according to the image information obtained through high-speed camera shooting; dynamically adjusting the angle and the position of the atomizing nozzle according to the identified gathering area and the gathering degree thereof so as to avoid the situation that the water vapor gathering affects the waterproof performance detection result; a plurality of temperature and humidity sensors are arranged in the atomization cavity, temperature and humidity data of the atomization environment are collected in real time, and the influence of the data on the atomization effect is analyzed; a correlation model between the temperature and humidity data and the droplet evaporation rate is established through a machine learning algorithm, and the model considers and calculates a fluid dynamics simulation result and an image monitoring result at the same time.

The invention discloses a preparation method and application of a CuBi2O4 film electrode, and belongs to the field of film materials. The preparation method of the CuBi2O4 film electrode comprises the following steps: mixing an aqueous solution of 0.05 mol / L-0. 2 mol / L copper acetate and an aqueous solution of 0.05 mol / L-0. 2 mol / L sodium acetate to obtain an electrolyte I, and obtaining a Cu2O film on FTO (Fluorine-doped Tin Oxide) by adopting an electrodeposition method; adding a coordination agent, KOH and fused salt KNO3 into a 0.05 mol / L-0. 3 mol / L bismuth nitrate solution or adding water to dilute to obtain a solution II; and pulling and dipping the obtained Cu2O film in the solution II, carrying out annealing treatment, washing with deionized water, and drying to obtain the CuBi2O4 film electrode. According to the preparation method disclosed by the invention, Cu2O with uniform surface and good compactness is obtained by regulating and controlling the concentration ratio of cupric acetate to sodium acetate, and the high-quality CuBi2O4 film electrode is prepared by optimizing the concentrations of the coordination agent, the mineralizing agent and the fused salt on the basis.

The invention relates to a charging robot path planning method. The method comprises the following steps: calculating an initial path from an initial grid to a target grid of a charging robot in a grid map by using an A * algorithm; dividing a search space determined by the initial path into sub search spaces; initializing in each sub-search space and expanding a population through a pseudo-reverse learning strategy; the obtained current population is randomly divided into two sub-populations, and the two sub-populations are respectively marked as a first sub-population and a second sub-population; for the first sub-population, iterative optimization is carried out through a first strategy according to the fitness, and for the second sub-population, iterative optimization is carried out through a second strategy according to the fitness; the first 50% of individuals in the first sub-population and the second sub-population form a third population; performing crossover operation on the No.3 population to obtain a current population; calculating the fitness of the current population individuals; and iteration is carried out until the number of iterations reaches the maximum number of iterations, or the optimal values of the two sub-populations tend to be the same, and an optimal path is obtained.

The utility model provides a superfine bubble synergistic device, which relates to the technical field of bubble generating devices and comprises a bubble generator, a moving component, a reaction box and a sealing component, the reaction box is arranged at the bottom of the bubble generator, the sealing component is arranged in the reaction box, and the moving component is arranged on one side, close to the sealing component, in the bubble generator. A water outlet is formed in the bottom of the bubble generator, and a communicating assembly is arranged between the water outlet and the moving assembly; the moving assembly comprises a motor, a reciprocating lead screw and a sliding block, the motor is fixedly connected to the bubble generator, the reciprocating lead screw is fixedly connected with the output end of the motor, the reciprocating lead screw is rotationally connected to the inner side of the bubble generator, the reciprocating lead screw can push the sliding block to do reciprocating motion along the bubble generator by arranging the moving assembly, and the sliding block pushes the communicating pipe and the shower head to move together; the movement reaction of the nozzle in the reaction box is increased, and the reaction range of the synergistic device to the reaction solution is further increased, so that the reaction efficiency of the synergistic device is improved.

The invention provides a precise wound medicine spraying robot control method and system based on a neural network. The method comprises the following steps: receiving operating room environment parameters and wound image information; determining the injection pressure of a robot nozzle according to the operating room environment parameters, and analyzing the wound image information by using a pre-trained neural network to obtain an image analysis result; a pre-trained neural network introduces a multi-scale analysis strategy for the wound area; according to an image analysis result, generating a three-dimensional motion trail of the robot nozzle and moving speeds and spraying angles of the robot nozzle at different positions in the three-dimensional motion trail; and according to the injection pressure of the robot nozzle, the three-dimensional motion track of the robot nozzle and the moving speed of the robot nozzle, a corresponding control instruction is generated, so that the robot nozzle performs corresponding operation according to the control instruction. According to the technical scheme, the accuracy of robot control is improved.

The invention discloses a trapezoidal sail multi-target size optimization method based on an NSGA-II algorithm, and relates to the technical field of unmanned sailboats. According to the method, the aspect ratio, the taper ratio and the camber ratio are selected as design parameters of the trapezoidal sail, after multiple sets of design parameters are sampled and obtained within the value range of the design parameters based on a Latin hypercube sampling method, a trapezoidal sail model is constructed by utilizing fluid simulation analysis software for each set of design parameters, and the trapezoidal sail model is obtained. Performance evaluation parameters corresponding to each group of design parameters are obtained through simulation, a database is constructed, the database is utilized to train a Kriging agent model for replacement, multiple groups of trapezoidal sail design parameters to be preferentially selected are selected, and multi-target size optimization is performed on the trapezoidal sail design parameters based on an NSGA-II algorithm and the trained Kriging agent model. And determining optimal trapezoidal sail design parameters and verifying the accuracy of the optimal trapezoidal sail design parameters. According to the method, trapezoidal sail design parameters and performance evaluation parameters are combined, and a basis is provided for optimization of a sail design scheme by using an NSGA-II method and a Kriging agent model.

The invention discloses a building construction dust fall enclosure which comprises an enclosure water tank, connecting frames are fixedly mounted on the two sides of the enclosure water tank, atomization dust fall mechanisms are rotationally mounted between the two connecting frames and in the connecting frames, and a splicing mechanism is fixedly mounted at one ends of the two connecting frames; the wall water tank can be buckled on the outer surface of the splicing mechanism of another wall water tank through the splicing mechanism, so that splicing of the multiple wall water tanks is achieved, back plates are installed at one ends of the wall water tanks in a communicating mode, installation grooves are formed between the back plates in a sealed mode, and reciprocating push-pull mechanisms are fixedly installed in the installation grooves. The push-pull end of the reciprocating push-pull mechanism is rotationally connected to one end of the atomization dust falling mechanism. Through the design of the atomization dust falling mechanism and the reciprocating push-pull mechanism, dust falling dead angles caused by single-direction spraying can be effectively avoided through up-and-down and left-and-right swinging water mist spraying operation, and dust on a construction site is more thoroughly inhibited.

The invention relates to an optimized regulation and control method based on a model considering an uncertain source load operation scene, and the method comprises the steps: solving a predicted value of conventional load power through a load power prediction method, such as a neural network method, and solving predicted values of wind power output and photovoltaic output through a distributed power output prediction method, such as a data statistics prediction method; a prediction error distribution function of wind power output and load power is combined, a source load operation scene generation model considering prediction errors is established, a large number of original source load operation scenes are generated, an improved hierarchical K-means clustering algorithm is used for extracting the original source load operation scenes, and a source load uncertainty model based on the multi-scene technology is established; compared with the prior art, the method has the advantages that the calculation complexity is simplified while the uncertainty influence caused by prediction errors is fully considered, the dependence of a traditional clustering algorithm on the number of target scenes is avoided, and the strong uncertainty of the source side and the load side of the power distribution network is accurately described.

The invention discloses an anti-frost device for an orchard, and relates to the technical field of agriculture, the anti-frost device provided by the scheme has two operation modes, the modes can be rapidly switched, and the wide adaptability in the anti-frost process of the orchard is ensured through a long-term endurance mode and a high-heat heating mode. And by adopting the design of automatically adjusting the air inflow and uniformly throwing water, not only is continuous smoke output without manual supervision realized, but also excessive combustion of fuel is effectively inhibited, and efficient utilization and safe operation of the fuel are ensured. Meanwhile, by means of the steam-driven heat directional spraying technology, the fruit trees and the ground are evenly covered with heat, the heating efficiency is improved, and the influence of smoke on the fruit trees is reduced. The device can use various biomass fuels, the operation cost is greatly reduced, electric power support is not needed, the device is particularly suitable for large orchards in remote areas, and the low-cost, efficient and environment-friendly anti-frost effect is achieved.

The utility model relates to the technical field of ice making equipment, in particular to a high-quality ice making mold. A first elastic cushion is embedded on the inner side wall of a first mold cavity of a first mold; and a closed ice making cavity is formed by a second mold cavity on the second mold and the first mold cavity. And a second elastic cushion is arranged in each of the two second mold cavities. And the third mold cavity of the third mold and the other second mold cavity are enclosed to form a closed ice-making cavity. And a third elastic cushion is embedded in the inner side wall of the third mold cavity. The elastic deformation factor of the elastic cushion can be used for releasing stress generated by volume increase when water is frozen, and the quality of the made ice blocks is higher. The first elastic cushion, the second elastic cushion and the third elastic cushion are not fully paved in the ice-making cavity, and the evaporation pipe is wound on the peripheral side of the ice-making cavity, so that the cold transfer efficiency of a refrigerant is higher, the coverage area is more uniform, and the ice-making efficiency is remarkably improved. The water inlet and outlet device can bring out gas in the water body, so that the made ice block is more transparent.

The invention belongs to the field of thin films, and particularly discloses an atomic layer deposition method and a thin film prepared through the atomic layer deposition method. According to the deposition method, the reaction cavity, the two input pipeline systems, the outlet valve and the vacuum pump in the atomic layer deposition system are used for controlling precursor pulse deposition and inert gas purging conditions in the atomic deposition process, and the film deposition state is improved; the efficiency of purging and removing substances and impurity residues such as a precursor and a reaction product thereof is improved, the problem that the quality of a deposited film is affected by the impurity residues in a reaction system or on the surface of a sample in the film deposition process is avoided, the uniformity and compactness of film deposition and the coverage rate and conformal rate of a film on the surface of a base material hole are improved, the defects of the film are reduced, and the yield is improved. And the method can be applied to a substrate with a high aspect ratio structure to deposit the film, so that the purpose of manufacturing a large-size complicated special-shaped structure device is achieved.

The invention relates to the technical field of pulp shooting machines, and discloses a self-adaptive pulp shooting machine for vertical shaft inner wall unevenness, and the self-adaptive pulp shooting machine for vertical shaft inner wall unevenness integrates advanced equipment which integrates efficient pulp shooting, self-adaptive adjustment and automatic control. The pipeline conveying mechanism is responsible for accurately conveying high-pressure slurry to the rotary material spraying mechanism, and the rotary material spraying mechanism uniformly sprays the slurry to the inner wall of a vertical shaft in a mist form through high-speed rotation. The position of the self-adaptive lifting structure can be automatically adjusted according to the unevenness of the inner wall of the vertical shaft, it is ensured that the slurry covers all details, and even slurry spraying can be achieved whether grooves or protrusions exist. In addition, the guniting machine is driven by a pneumatic motor, not only adapts to the complex underground environment, but also is high in response speed and can quickly adapt to the change of the inner wall of the vertical shaft. The overall design pays attention to efficiency, stability and durability, manual intervention is reduced through automatic operation, the construction quality and efficiency are improved, and meanwhile material waste and cost are reduced.

The invention discloses an experimental seedling raising device for corn planting, and belongs to the technical field of experimental seedling raising. An experimental seedling raising device for corn planting comprises a bottom plate and a planting box fixedly connected to the bottom plate, and further comprises a support fixedly connected to the bottom plate, a lifting plate is installed on the support in a sliding mode, a plurality of planting grooves are formed in the planting box, a plurality of planting parts are arranged on the lifting plate corresponding to the planting grooves, and the planting parts correspond to the planting grooves. The top plate is fixedly connected to the support, a storage tank is fixedly connected to the top plate, and a discharging part for controlling the storage tank to discharge materials is arranged on the lifting plate; through cooperation of the matching rod and the threaded rod, accurate sowing depth control is realized, uniform distribution of seeds in the planting groove and a proper growth environment are ensured, and accurate control of softness and humidity of soil in the planting groove is realized, so that optimal growth conditions are provided for the seeds.

The invention relates to the technical field of overhead ground wire anti-freezing solution spraying, in particular to a spraying mechanism, a nozzle adjusting method, a nozzle spraying speed control method and a deicing device. The device comprises a rotating ring arranged adjacent to the tail end of the ground wire deicing device, a ring body of the rotating ring is provided with a notch for a ground wire to pass through, and the inner side of the rotating ring is provided with a nozzle for spraying an anti-freezing solution; the three rotating rings are coaxially distributed with the ground wire and sequentially arranged in the length direction of the ground wire, each rotating ring is driven by a rotating driving mechanism and can independently rotate around the axis of the ground wire to be adjusted so as to adjust the relative position, located on the periphery of the ground wire, of the spray head, and in the state that the notches of the three rotating rings are aligned, the spray head can rotate around the axis of the ground wire. And the three nozzles are circumferentially and uniformly distributed around the axis of the ground wire. According to the anti-freezing device, the anti-freezing solution can be uniformly sprayed on the overhead ground wire, so that the waste of the anti-freezing solution is greatly reduced, and a good anti-freezing effect on the ground wire is ensured.