23results about How to "Avoid potential hazards" patented technology

The invention discloses a laser obstacle clearance remote control system for remote obstacle clearance of an overhead line, relates to the technical field of laser obstacle clearance, and aims to solve the problem that laser obstacle clearance equipment cannot accurately acquire obstacles. Through integration and optimization of the steps of image processing, dynamic adjustment, batch normalization and the like, the processing efficiency of the image data can be remarkably improved, the laser obstacle clearing equipment can respond to and recognize obstacles more quickly, obstacle features in the optimized image data and an obstacle model are trained and calculated by using a computer learning algorithm, and the obstacle recognition efficiency is improved. And the adaptive capability and robustness of the system can be greatly improved. By continuously learning new obstacle features, the system can gradually improve the recognition performance, calculate the obstacle features and the operation mode through a particle filtering method, and adjust the direction of the laser beam in real time according to the calculation result, thereby ensuring the accurate tracking of the obstacle position.

The invention discloses a foam metal-based anti-static air duct and a manufacturing method and application thereof, and belongs to the technical field of VOCs treatment. The manufacturing method comprises the following steps that firstly, powdery metal, a spherical pore-forming agent and an adhesive mixture are evenly mixed; putting the mixed material into an air pipe mold, and briquetting to obtain a tubular cold-pressed block; removing the pore forming agent in the cold pressing block; smoothing the inner surface; sintering the cold pressing block to obtain an air pipe body; the sintering temperature is 75-85% of the metal melting point; secondly, the outer surface of the air pipe body is coated with a resin mixture, a shell is formed after air drying, and the anti-static air pipe is obtained; the resin mixture comprises quaternary ammonium salt type cationic surface active agent modified carbon fibers, an anti-ultraviolet agent and resin. The anti-static air pipe based on the foam metal is used for conveying gas in VOCs treatment. The invention has the advantages of excellent anti-static effect, low material consumption, light weight, convenience in installation and the like.

The application relates to the field of microbial treatment, and particularly relates to a metal inoculation ring capable of testing impedance by electrification, which comprises a metal working end used for contacting and absorbing a sample, a mounting part connected with the metal working end, and a control module electrically connected with the metal working end, wherein the control module comprises a mode switching unit used for switching between a heating mode and a detection mode, a power driving module used for applying an electric current to the metal working end in the heating mode so that the metal working end generates heat to achieve sterilization, and an impedance detection module used for applying a detection electric signal to the metal working end in the detection mode to detect the absorption condition of the sample; and the control module is configured to judge the state of the sample absorbed by the metal working end according to the change of the electric characteristic parameter relative to a reference value in the detection mode. The metal ring has the functions of heating sterilization and impedance detection, and can objectively judge whether the absorption amount of the inoculation ring reaches a preset standard.

The invention discloses a polymer modified asphalt composition and a preparation method thereof, and relates to the technical field of asphalt materials. The invention has the advantages that the performance of the asphalt composition is improved through composite modification of multiple components, the surface activity of nano silicon dioxide is enhanced after pretreatment, the gaps between asphalt molecules are filled, the structural stability and wear resistance are improved, and the nano silicon dioxide is tightly combined with the asphalt molecules due to its nano size, the plant polymerizable components extracted from flax seeds are subjected to a series of treatments, and the active groups thereof react with the asphalt molecules to improve the flexibility and adhesion, the ionic liquid is synthesized and pretreated, and the anions and cations act on the active sites of the asphalt molecules to improve the anti-aging performance, the thermosensitive polymer is composed of a copolymer containing specific chain segments, the low-temperature shrinkage makes the molecular structure compact and crack-resistant, and the high-temperature stretching adapts to the volume expansion and remains stable, effectively improving the high-temperature stability and low-temperature crack resistance, and extending the service life of the paved material.

The application relates to the technical field of organic functional materials, and discloses a bis-aryl semi-indigo monomer, a functional polymer film and a preparation method and application thereof. The preparation method of the bis-aryl semi-indigo monomer comprises the following steps: dissolving a compound A and sodium hydride in an organic solvent, stirring and reacting to obtain a precursor solution; adding a bromide compound containing R 9 to the precursor solution to perform an alkylation reaction, then adding a saturated ammonium chloride solution to quench the reaction, separating and collecting an organic phase; washing, drying and concentrating the organic phase to obtain a crude product; purifying the crude product through column chromatography, and then performing recrystallization to obtain the bis-aryl semi-indigo monomer. The application introduces a polymerizable functional group into a bis-aryl semi-indigo mother nucleus structure to prepare a polymerizable bis-aryl semi-indigo monomer, the bis-aryl semi-indigo monomer has bidirectional visible light response characteristics, can realize E / Z configuration reversible isomerization under the driving of green light and red light dual visible light bands, and can realize rapid and reversible color change in the full visible light band.

This invention discloses a waterborne epoxy curing agent, its preparation method, and its application, belonging to the field of waterborne epoxy coating technology. It solves the problems of slow drying speed, poor flash rust resistance, inadequate water and salt spray resistance, and reliance on organic solvents in existing waterborne epoxy curing agents. The preparation method includes the following steps: adding an aliphatic polyamine to a reaction vessel, heating to 70-80°C, and then adding a mixture of epoxy resin and polyethylene glycol diglycidyl ether dropwise for an addition reaction; maintaining the temperature after the addition is complete, and then performing vacuum distillation; adding maleic anhydride oil to the product after vacuum distillation, and heating to 90-95°C for a reaction; cooling after the reaction, and then adding deionized water dropwise for emulsification to obtain the waterborne epoxy curing agent. This invention utilizes green, solvent-free production, and the resulting curing agent exhibits fast drying speed, excellent flash rust resistance, water resistance, and salt spray resistance.

The present invention belongs to the technical field of biological control, and specifically relates to a method for abnormal Wickham yeast to control brown rot, aspergillus disease, soft rot and storage and preservation of peach fruits after harvest. The steps are as follows: firstly, a 1×10 8 cells / mL of yeast suspension; select peach fruits, disinfect, rinse and dry them, and then divide them into three groups, drill holes on the surface of the peach fruits and inject the yeast suspension, and after a period of time, inject spore suspensions of American and Australian type drupe brown rot fungi, Aspergillus niger and Rhizopus stolonifer in the holes of the three groups of peach fruits in the same volume as the yeast suspension, so as to achieve effective control of peach brown rot, aspergillus disease and soft rot; or directly spray the yeast suspension evenly on the surface of the peach fruits and dry them naturally, so as to achieve the purpose of preventing and controlling natural diseases of peach fruits after harvest and storing and preserving them; the present invention has no adverse and significant effects on the main quality indicators of peach fruits after harvest while effectively controlling the diseases, is easy to operate, safe and environmentally friendly, and has significant economic and social benefits.

The application discloses a floating photovoltaic power generation device suitable for fish culture, which comprises a corrosion-resistant floating body, a power generation module, a sun tracking module and a self-cleaning module integrated on the floating body to form an integrated independent power supply unit, and photovoltaic panels replace high-voltage power transmission to supply power to the culture device; the sun tracking module realizes sun tracking of the photovoltaic panels through a two-degree-of-freedom deflection structure combined with intelligent control and takes into account underwater culture illumination; the self-cleaning module realizes automatic cleaning of the photovoltaic panels through cooperation of a brush / roller brush and spraying; the floating body can be used alone or composed of a power generation group, and is matched with structures such as buoyancy reinforcement, gravity center lowering and wind and wave resistance linkage, and is suitable for different scales and types of culture water areas. The application realizes on-site power consumption, eliminates hidden dangers of high-voltage power transmission, improves photovoltaic power generation efficiency, reduces operation and maintenance cost, takes into account power generation and culture ecology, and has high practicability.

The utility model discloses a near-infrared transmission and reflection mode fusion imaging system. The imaging system comprises an illumination system, a data acquisition system and an information processing system which are connected in sequence, the lighting system comprises a laser; the data acquisition system is used for acquiring near-infrared image information of a test object; and the information processing system is used for providing an image processing and analysis algorithm so as to analyze the near-infrared image information. According to the utility model, on the basis of near-infrared transmission and reflection mode fusion imaging technology, bone defect detection of a position point of the oral implant and the periphery of the implant is realized; based on selection of the near-infrared light source and the near-infrared detector suitable for the oral cavity, clear images can be obtained in the oral cavity environment.

The invention belongs to the field of biological control of postharvest diseases of fruits, and particularly relates to a method for preparing a Wickerhamomyces anomalus solid preparation by using a protective agent and application of the Wickerhamomyces anomalus solid preparation. According to the invention, research is carried out based on a solid preparation of Wickerhamomyces anomalus, and protective agents and an optimal compounding proportion among different protective agents are creatively screened, specifically 6% of sorbitol, 10% of skimmed milk powder, 3% of sodium glutamate and 5% of trehalose; the prepared solid preparation can be stored at-20 DEG C for 90 days, the survival rate of the solid preparation is 67% or above, and the rotting rate of a solid preparation group is stabilized to be 24.0% or below; the technical problem of low survival rate of Wickerhamomyces anomalus in practical application is solved, potential hazards of chemical bactericides to human bodies and environments are avoided, and the Wickerhamomyces anomalus solid preparation is safe and environment-friendly, can meet commercial production and use requirements, and has important significance on commercial application and development of yeast solid preparations.

The invention belongs to the technical field of deep sea plume inhibition, and particularly relates to a biomass flocculant as well as a preparation method and application thereof. The raw materials comprise sodium alginate, acrylamide and dodecane dimethyl betaine, and the ratio of the mass of the sodium alginate to the volume of the acrylamide to the volume of the dodecane dimethyl betaine is 1g: (2-4) g: (0.5-1) ml. Natural or bio-based materials such as sodium alginate, acrylamide and dodecane dimethyl betaine are adopted as main components, marine polysaccharide is fully utilized as a raw material, and dodecane dimethyl betaine introduced to flocculant material molecules can reduce the viscosity of a flocculant solution, so that the requirements on pipelines and pumping devices are reduced, and the cost is reduced. And the pumping efficiency of the flocculating agent is improved, the damage of the deep sea plume to the ecological environment is effectively inhibited, and good economic benefits and environmental benefits are achieved. The product is non-toxic and harmless, has good biodegradability, and avoids the potential harm of the traditional inorganic flocculant to the deep sea ecological environment.

The present invention relates to the field of control technology, and in particular to a gas water heater intelligent control system, comprising an intelligent scene matching module, a user data learning module, a water flow monitoring module, a water flow regulating module, a temperature control module, an indoor environment monitoring module, a fault diagnosis module, and a management database. The system obtains user water use recommendation data by analyzing the user's historical water use data, adjusts the water pressure of the water heater by detecting the water consumption at each time point, controls the water temperature by analyzing the water temperature compliance of the user's water use, detects indoor environmental parameters when the user is bathing, and obtains an indoor air quality evaluation coefficient by analyzing, and detects fault parameters of the water heater, and obtains a fault evaluation coefficient of the water heater by analyzing, thereby improving the intelligence level and service quality of the water heater system as a whole, making the use process more convenient, efficient and safe.

The invention aims to provide the hair essence production formula, various components with the effects of enhancing hair quality and improving scalp health are accurately proportioned, meanwhile, the synergistic effect is shown in the aspect of activating the activity of tyrosinase, and the prepared essence can effectively increase the black hair rate and has an excellent effect of turning white hair into black.

The invention relates to a master-slave control device, a master-slave control system and a master-slave control method for cataract ophthalmic surgery. The method comprises the following steps: dividing a plurality of equipment slave stations into response slave stations and standby slave stations according to slave station use requirements corresponding to a surgery stage; determining a target transmission sequence according to the fact that the transmission priority of the response slave station is higher than that of the standby slave station; generating a second operation instruction of the slave manipulator according to the first operation instruction of the master manipulator based on a preset mapping model; the control master station generates a data frame comprising a plurality of sub-instructions, and transmits the data frame according to the target transmission sequence through the real-time communication network; the plurality of equipment slave stations obtain corresponding sub-instructions from the real-time communication network; the first instruction threshold value and the second instruction threshold value of each equipment slave station are set, the execution strategy of the sub-instructions is determined based on the two instruction threshold values, the equipment slave stations are controlled to execute the sub-instructions according to the execution strategy, various risks of different degrees are flexibly dealt with, and the smoothness, the real-time performance and the safety of the equipment slave stations in instruction execution in the operation process are balanced.

The invention relates to a preparation method of a high-resilience yellowing-resistant PBAT supercritical foaming material, the foaming material and application. The method comprises the following steps: S1, pre-drying PBAT and polyester aliphatic series; s2, mixing PBAT, polyester aliphatic series and a nucleating agent; s3, carrying out a melting reaction to form a polymer melt; s4, injecting supercritical carbon dioxide to be mixed with the polymer melt; s5, mixing and cooling to form a uniform melt; s6, extrusion and underwater girdling are carried out, and the PBAT foaming beads are prepared. The PBAT foaming material has high rebound resilience and yellowing resistance and is suitable for products such as shoe soles and the like. By optimizing the formula and the process, the light weight, efficient production and stability of the product are also realized, and the product has wide application prospects.

Embodiments of the present application provide a gain adjustment method, an earphone, an electronic device and a storage medium, which are applied to the earphone. The method comprises: collecting environmental background sound information; obtaining an emotional state of a user; adjusting a pre-obtained basic gain curve for the user according to the collected environmental background sound information and the emotional state to obtain an adjusted gain curve; and performing gain processing on the collected environmental background sound according to the adjusted gain curve. By combining the background sound information of the environment around the user and identifying the emotional state of the user, the audio gain curve is dynamically adjusted, thereby enhancing the hearing experience of the user in a specific scenario and making the life of the user more convenient and efficient.

The invention discloses a making method for making sour soup bean curd by using green vegetable fermented sour water and a product, the making method comprises the following steps: preparing green vegetable sour water, using green vegetables and water as raw materials for anaerobic fermentation to obtain the green vegetable sour water, and using the green vegetable sour water as a coagulator for forming bean curd for the first time; making sour soup bean curd, taking soybeans as a raw material, and obtaining to-be-curdled pulp according to a conventional bean curd making process; then, the prepared vegetable acid water is used as a coagulator for curdling, and finally, the bean curd with the sour soup is obtained through congealing and compression molding. Curdling acid water is prepared, bean curd water generated in the congealing and pressing forming stage is collected, anaerobic fermentation is conducted, and the curdling acid water is obtained and serves as a coagulator for bean curd forming next time. The sour soup bean curd prepared by the method disclosed by the invention not only can improve the quality of bean curd produced by acid water curdling, but also can enable the prepared sour soup bean curd to be rich in nutrition, green and healthy, and can meet the taste of more people, thereby meeting the market demand and being suitable for popularization and application.

The application provides a method for preparing an intermediate of abubinitin by using a micro-channel reactor, 3-oxocyclobutane acyl chloride and sodium azide are respectively dissolved and pumped into a micro-channel reactor I to perform an acyl azide reaction, and the intermediate reaction solution is continuously pumped into a micro-channel reactor II to perform a reaction with benzyl alcohol to obtain 3-oxocyclobutyl benzyl carbamate. The micro-channel reactor is used as a core reaction equipment, continuous acyl azide reaction and continuous Curtius rearrangement reaction are realized, the method has the advantages of high yield, good quality, reduced reaction risk, high mass and heat transfer efficiency, safe and simple operation and the like, and is beneficial to the large-scale production and application of the intermediate.

The utility model discloses a chemical reagent test culture dish which comprises a box body, the inner wall of the box body is connected with a fixing frame, the inner wall of the fixing frame is connected with a plurality of damping rods in a sliding mode, the outer surfaces of the damping rods are all sleeved with buffer springs, the end, away from the fixing frame, of each damping rod is connected with a clamping block, and the clamping blocks are arranged on the outer surfaces of the damping rods. The outer surfaces of the multiple clamping blocks are made of sponge materials, a sealing cover is hinged to the top end of the fixing frame, and a locking block is connected to the right side face of the sealing cover. The fixing frame is arranged, buffer springs are matched with damping rods, the device can adapt to culture dishes of various sizes, the universality and flexibility of the device are improved, the clamping blocks are matched with the buffer springs and the damping rods, bumping and shaking in the transportation process can be absorbed, impact on culture dish bodies is reduced, and the service life of the device is prolonged. A sealing cover is matched with a locking block, so that the reagent in the culture dish main body can be prevented from flowing out due to bumping in the transportation process.

This invention discloses a method for treating livestock and poultry manure through composting, which can significantly improve the seed germination index. This method effectively increases the seed germination index. After a secondary aerobic treatment in a composting tank for 5 to 10 days, the seed germination index is significantly improved. Experiments have verified that it can increase by more than 50% compared to the untreated state, meeting or even exceeding the requirements of organic fertilizer industry standards for seed germination index. The aerobic treatment method used in this invention requires no chemical reagents, utilizing only a natural aerobic fermentation process, thus avoiding the potential harm of chemical residues to the soil and environment, and aligning with the concept of green and environmentally friendly agricultural development.

The invention discloses preparation of a composite emulsion and application of the composite emulsion in preservation of vegetarian meat, and belongs to the field of food preservation. Soybean protein isolate and tea saponin are used as natural emulsifiers, vegetable oil and cinnamon essential oil are used as a mixed oil phase, and the cinnamon essential oil emulsion is formed after ultrasonic emulsification. The essential oil emulsion is used for soaking the vegetarian meat, so that the aim of prolonging the shelf life is fulfilled. Compared with a synthetic emulsifier, the natural emulsifier used in the emulsion is safer and more harmless to a human body, can overcome the defects of high volatility, poor water solubility, thermal instability, sensitivity to environmental change and the like of the cinnamon essential oil, and enables the cinnamon essential oil to play a maximum role in the vegetarian meat preservation process. The plant essential oil emulsion prepared by the invention is uniformly dispersed and has better physical stability, and the cinnamon essential oil emulsion has an obvious fresh-keeping effect on storage of vegetable protein meat, and can delay hardness and color change and inhibit growth of putrefying flora, so that the fresh-keeping period is prolonged. And the method is simple, easily available in material, low in cost and easy to popularize.

The invention relates to the technical field of novel polyurethane materials, in particular to a sole with flexibility and rebound resilience, a polyurethane composition and a preparation method. By introducing the low-migration plasticizer, the bio-based softener, the antioxidant, the UV absorbent and the nanofiller, the invention provides the environment-friendly polyurethane sole material with excellent flexibility, rebound resilience and weather resistance, so as to meet the requirements of the market on high-performance and environment-friendly sole materials.

The present invention discloses a closed circulation system for cooling water supply of a crucible and an operation method thereof. The closed circulation system for cooling water supply of a crucible comprises an external circulation water supply system, an internal circulation cooling water system and a water supply tank D. The internal circulation cooling water system for cooling the crucible is a closed circulation system. The external circulation water supply system and the internal circulation cooling water system exchange heat through a heat exchanger E. The external circulation water supply system supplies water to the water supply tank D, and the water supply tank D supplies water to the internal circulation cooling water system. The water supply tank D is connected to a drain through an overflow port. The external circulation water supply system, the internal circulation cooling water system and the water pump outlet of the internal circulation cooling water system are all connected to the drain through a pipeline. The system has high operation stability and high safety.