13results about How to "Protect resources" patented technology

The invention discloses a guidance planning method for ecological restoration of a side slope, and relates to the technical field of ecological restoration, and the main scheme is as follows: collecting multiple data of the side slope; calculating a slope stability index, and presetting a threshold value to judge whether the slope area is in a risk state; calculating a vegetation coverage area, and further calculating a plant suitability index; calculating a plant variety selection index, and further calculating a planting quantity; calculating the water and soil loss rate after restoration; calculating a plant adaptation comprehensive index; calculating an ecological restoration effect index and a vegetation density, and further obtaining a planting layout rationality index; calculating a soil stability index, further calculating a water and soil loss control index, and judging whether the soil loss control state is abnormal or not according to a preset threshold value; calculating a water and soil conservation effect index, further obtaining a vegetation growth comprehensive index, presetting a threshold value to judge the vegetation growth condition, and taking corresponding remediation measures; the method can effectively guarantee scientificity and effectiveness of ecological restoration of the side slope.

The invention relates to the field of sludge treatment, and particularly discloses a method for recycling phosphorus in sludge pyrolysis residues, a flocculant synthesis method and application. The invention discloses a method for recovering phosphorus in sludge pyrolysis residues. The method comprises the following steps: drying the sludge pyrolysis residues, grinding and sieving; the sludge pyrolysis residues are put into a hydrochloric acid solution to react, and solid-liquid separation is carried out after the reaction; treating the phosphorus-containing extracting solution through adsorption resin to obtain a phosphorus purification solution; adjusting the pH value of the phosphorus purification liquid to 9-11, and carrying out a crystallization reaction under the condition that the molar ratio of magnesium to nitrogen to phosphorus is (0.8-1.2): (1-1.6): 1 to obtain struvite; a synthetic method of the flocculating agent is as follows: the flocculating agent is prepared from residual sludge residues. The method for recycling phosphorus in the sludge pyrolysis residues has the advantages that phosphorus resources are recycled from the sludge pyrolysis residues, and the residues are secondarily utilized. The flocculating agent is applied to municipal sewage treatment.

The invention belongs to the technical field of agricultural mechanization and intelligent equipment, and particularly relates to a corn harvester operation soil compaction degree judgment method based on machine tool real-time parameters, in particular to a soil compaction degree judgment method. The invention aims to solve the problem of low soil compaction prediction accuracy caused by the fact that the existing soil compaction prediction method considers soil indexes and machine pressure and does not consider the influence of dynamic indexes which can be autonomously controlled by a driver on soil compaction. The method comprises the steps of 1, collecting a feature data training set; 2, obtaining a standardized feature data training set; 3, obtaining an optimal compaction degree prediction model; 4, constructing an optimal comprehensive compaction degree model; 5, constructing an optimal compaction early warning model; 6, constructing an optimal comprehensive compaction risk early warning model; 7, collecting a to-be-detected feature data set, obtaining an optimal comprehensive compaction degree model of the to-be-detected feature data set, and outputting a comprehensive compaction degree value and a risk early warning level; and 8, pushing on a screen end in real time.

The high-frequency sound wave fish driving device comprises a main body structure and a modular buoy structure arranged below the main body structure, the main body structure comprises a main frame body, the main frame body is connected with the modular buoy structure through a fastening bolt, and a solar cell panel and a mainframe box are arranged on the main frame body; a controller, a plurality of connectors and a fixing rod are arranged on the mainframe box, a cross is arranged at the bottom of the fixing rod, driving propellers are arranged at the ends of the cross, the connectors are connected with a waterproof plug, and the waterproof plug is connected with a high-frequency generator through an extension line. With the adoption of the structure, the modular buoy structure can be flexibly combined and adjusted and is suitable for carrying fish driving equipment with different powers; the driving mode is divided into two fixed-point cruising modes, the fish driving requirement of the tail water area can be met more easily, and the automatic fish driving efficiency is greatly improved; the operation and maintenance efficiency of hydropower station equipment is improved, fish resources are protected, and the comprehensive ecological and environment-friendly benefits of a hydropower hub are improved.

This invention discloses a method for separating fluorosilicic acid and hydrofluoric acid using an anion exchange membrane, comprising the following steps: adding a flocculant to a fluorosilicic acid-hydrofluoric acid mixture, aging it, then adding a desulfurizing agent to carry out a desulfurization reaction to obtain a mixed solution, adding the mixed solution to the feed side of an anion exchange membrane for membrane separation, and obtaining a hydrofluoric acid solution with a mass concentration of 2-30% on the clear water side after separation. This invention uses a flocculant to rapidly settle solids such as sodium fluorosilicate and potassium fluorosilicate in the fluorosilicic acid-hydrofluoric acid mixture, uses a desulfurizing agent to remove sulfuric acid, and then uses an anion exchange membrane to effectively separate fluorosilicic acid and hydrofluoric acid in the fluorosilicic acid-hydrofluoric acid mixed solution. The hydrofluoric acid separated by membrane separation has high purity and high output value, increases the utilization rate of by-product hydrofluoric acid, and reduces costs.

The offshore wind turbine foundation truss comprises a truss body, the truss body comprises truss pile legs, the upper ends of the truss pile legs are connected with truss guide pipe legs, the upper ends of the truss guide pipe legs are connected to the lower surface of a supporting platform, and the lower end of a wind turbine tower drum is fixed to the upper surface of the supporting platform. A first connecting pipe frame, a second connecting pipe frame and a third connecting pipe frame are sequentially arranged between every two adjacent truss guide pipe legs from top to bottom. An ECC bonding layer and an FRP protective layer are arranged at a connecting node; a POZD material layer is arranged on the outer surface of the truss main body; the truss guide pipe leg comprises a guide pipe leg outer layer and a guide pipe leg inner layer, a guide pipe leg interlayer is arranged between the guide pipe leg outer layer and the guide pipe leg inner layer, and the guide pipe leg interlayer is filled with oil rock page waste residue concrete. The FRP protective layers are arranged at the connecting joints, the POZD material layers are arranged outside the truss body, and the truss guide pipe legs are filled with the oil rock page waste residue concrete, so that the overall corrosion resistance and load resistance can be improved.

The invention provides a standing tree cutting degree parameter automatic inversion method based on a ground-based laser radar and deep learning, and relates to the technical field of forest tree measurement. The method comprises the following steps: acquiring an original three-dimensional laser point cloud based on multi-station scanning, and acquiring a clean trunk point cloud; and generating a high-density diameter-height observation data set through axial skeletonization extraction and slicing processing in combination with circle fitting calculation. A variable parameter cutting degree equation model introducing a relative tree height ratio and a height-diameter ratio factor is constructed, and a residual sum of squares objective function is established; and iteratively solving the optimal shape parameter vector by using a nonlinear least square algorithm, and outputting a model parameter of the target stumpage when a precision evaluation index is met. According to the method, the problem of measurement errors caused by branch and leaf shielding in a complex under-forest environment is effectively solved, a traditional destructive survey mode of cutting down and analyzing trees is replaced, non-destructive, high-precision and automatic inversion of standing tree cutting degree parameters is achieved, and the efficiency and the digital level of forest resource monitoring are improved.

The invention discloses an under-forest planting method for paris polyphylla, and belongs to the technical field of planting of traditional Chinese medicinal materials. The method comprises the steps of land selection, land preparation, transplanting, withered fallen leaf covering and cultivation management. According to the method, a traditional artificial sunshelter planting mode is broken through, the Yunnan paris polyphylla is planted in the natural environment of the abandoned forest, original trees are reserved, the cost can be saved, and the land utilization rate is increased; under the original ecological condition, the paris polyphylla is high in adaptability and good in growth vigor, and the yield and quality of the paris polyphylla can be improved. According to the planting method, forest resources can be effectively protected, the economic output of forest land is increased, the quality of paris polyphylla is improved, the application amount of fertilizer is reduced, pesticide residues are eradicated, and green, healthy and residue-free paris polyphylla products are truly achieved.

The application belongs to the technical field of biology, and specifically discloses a method for relieving the adverse effects of glufosinate-ammonium on bumblebees by using astaxanthin. It is found that feeding astaxanthin to bumblebees can effectively relieve the adverse reactions caused by glufosinate-ammonium residues; in terms of the content of active oxygen in the intestinal tract, astaxanthin can significantly eliminate the active oxygen caused by glufosinate-ammonium; in terms of feeding behavior, astaxanthin can significantly restore the reduced feeding amount of bumblebees caused by glufosinate-ammonium exposure; in terms of the integrity of the midgut, astaxanthin can significantly relieve the dissolution of the peritrophic membrane of the midgut of bumblebees caused by glufosinate-ammonium exposure; and in terms of the intestinal microbial layer, astaxanthin can restore the level of core bacteria of bumblebees caused by glufosinate-ammonium exposure. The application also provides bumblebee feed for relieving the toxicity of glufosinate-ammonium and the application of astaxanthin in the preparation of a preparation for relieving the adverse effects of glufosinate-ammonium on bumblebees.

This invention provides an experimental device and method for attracting, blocking, guiding, and enticing fish. The bottom center of the experimental fish tank is hinged to a base. Multiple lifting devices connect the fish tank to the base on both sides of the hinge point. One end of the fish tank has an outlet, and the other end has a return channel, which is connected to the outlet via a pump to form a circulation system. A sliding experimental platform is mounted on the fish tank, and the experimental device for attracting, blocking, guiding, and enticing fish is installed on the platform. Fish-blocking nets are installed inside the fish tank and on both sides of the platform. This helps us better understand how to protect marine and freshwater ecosystems. In summary, the purpose of constructing this experimental device for attracting, blocking, guiding, and enticing fish is to protect fishery resources and the ecological environment, and to promote sustainable development.

The invention belongs to the field of cable discs, and discloses a degradable wood-plastic cable winding disc and a preparation method thereof.The degradable wood-plastic cable winding disc is prepared from, by weight, thermoplastic plastic, plant fibers, a coupling agent, a compatilizer, a reinforcing agent, a release agent and a mixed assistant.The preparation method comprises the following steps that S1, raw materials are prepared; s2, compression molding; s3, assembling and forming; a disc of a combined environment-friendly degradable wood-plastic cable winding disc comprises a plurality of groups of outer fan-shaped plates and a plurality of groups of inner fan-shaped plates, the outer fan-shaped plates and the inner fan-shaped plates are detachably connected, the plurality of groups of outer fan-shaped plates and the plurality of groups of inner fan-shaped plates are connected in a staggered mode, the outer fan-shaped plates and the inner fan-shaped plates are made of degradable materials, and the outer fan-shaped plates and the inner fan-shaped plates are made of degradable materials. According to the technical scheme, the winding disc is made of degradable materials and convenient to disassemble, meanwhile, high stability can be guaranteed, and the comprehensive performance of the winding disc is greatly improved.

This invention discloses a method for artificially cultivating large-flowered sesame, comprising the following steps: S1, preparing the seedbed: After tilling the land, make raised beds and evenly spread well-rotted organic fertilizer on the bed surface; thoroughly water the bed surface, stir the surface soil into a thin mud, and scrape it smooth to create a slurry; S2, sowing: On the slurry bed surface, sow the seeds or tubers of the host plant, tiger nut, at a spacing of 10-15 cm, and evenly scatter the large-flowered sesame seeds on the muddy bed surface; S3, seedling management: Immediately after sowing, construct an arched shed, controlling the light transmittance at 40%-50%; ventilate in the morning and evening 20-30 days after emergence; remove the arched shed after 45-60 days and remove weeds; maintain the relative soil moisture content of the bed surface at 60%-80%. The advantages of this invention are: effectively increasing the yield of large-flowered sesame, achieving a double harvest of large-flowered sesame and tiger nut.

The invention discloses a vehicle load monitoring method for monitoring an engine operation audio signal. The method comprises the following steps: acquiring engine audio data through audio acquisition equipment; the audio signal of the engine is analyzed, information about the rotating speed of the engine is extracted, and then the rotating speed of the engine is calculated; obtaining the output power of the engine at different rotating speeds according to the engine working condition diagram; the running speed, obtained by the gyroscope, of the automobile is obtained, and wheel driving force is calculated according to a power formula; calculating the longitudinal traction force applied to the vehicle in the moving process; the vehicle acceleration is obtained from the gyroscope, the vehicle load is calculated based on the Newton second law, and whether the vehicle is overloaded or not can be known by comparing the vehicle load with the specified load. The vehicle can be weighed at any time without being limited by the position, and the management efficiency of related departments and vehicle managers is improved.