151results about How to "Guarantee sustainable development" patented technology

The invention relates to a mining-method tunnel inner shield receiving construction method. The mining-method tunnel inner shield receiving construction method comprises the specific construction steps: 1. filling plain concrete into a mining-method tunnel and reinforcing; 2. pre-burying one circle of circular-arc steel plate on a second lining at the crossed position of the tunnel; 3. manufacturing a shield receiving frame in the mining-method tunnel; 4. carrying out water-sealing and grouting construction before receiving a shield; 5. controlling parameters in a shield receiving process; 6. receiving an annular segment and a circular-arc steel plate welded sealing steel plate; 7. carrying out grouting construction on a shield tunnel receiving section; and 8. manufacturing a well connector in the mining-method tunnel. According to the mining-method tunnel inner shield receiving construction method, a series of construction problems of engagement of a shield tunnel with the mining-method tunnel, manufacturing of a temporary receiving frame, water sealing before a shield is received, setting of construction parameters of the shield entering the mining-method tunnel, manufacturing of a well connector and the like when the shield enters the constructed mining-method tunnel under a complicated stratum working condition can be solved; developed construction process and construction technology, which are used for receiving the shield in the mining-method tunnel, are formed; the universality of sustainable development and application of underground shield tunnel engineering development is guaranteed.

The invention relates to a manual fish reef device of an island-and-reef ocean fishing area and a distribution method thereof, belonging to the technical field of manual fish reefs and solving the technical problem of ensuring fishing resources in the fishing area. The method comprises the following steps: distributing trapping fish reefs in adjacent waters of each fishing point; and distributingproliferated fish reefs in external waters of the fishing area; and distributing grooming fish reef belts between each trapping fish reef and each proliferated fish reef and between the proliferated fish reefs. The invention improves ocean benthic environment and cultures habitat consciousness of fishes by various manual fish reefs so as to lock the proliferated and trapped fishes in the fishing area whenever possible and guide the fishes around each proliferated fish reef to swim to the trapping fish reef by the grooming fish reef belts. The device and the method can improve the fish-collecting effect and ensures the sustainable development of the ocean fishing area.

The invention discloses a master batch capable of fully and biologically degrading a plastic film and a preparation method thereof, and belongs to the field of high molecular films. The formula of the master batch comprises the following materials in parts by weight: 100 parts of starch, 2-9 parts of coupling agent, 8-18 parts of dispersing agent, 8-25 parts of polycyclolactone, 1-50 parts of polylactic acid, 8-15 parts of poly (hydroxybutyrate-hydroxyvalerate) (PHBV), 10-25 parts of plasticizer, 0.15-1.0 part of anti-tackiness agent, 0.15-1.2 parts of pro-oxidant and 1-15 parts of chemical precipitation promoter. The preparation method of the master batch comprises the three steps of: thinning the starch; mixing; and forming. The product provided by the invention has the advantages of high starch content, being a fast-growing and renewable resource, rich resource, low unit cost, high substitutability, obvious economic benefit and ecological benefit and capabilities of reducing the content of polycyclolactone, increasing polylactic acid and poly (hydroxybutyrate-hydroxyvalerate) (PHBV), improving product performance and meanwhile reducing cost.

The invention provides a seedling-cultivating substrate capable of preventing and treating soil-borne diseases and a production method thereof. The substrate is formed by compounding main material compositions, auxiliary material compositions and additives. The main material compositions comprise, by volume, 70-85% of cassava residues, 5-15% of peat, 5-10% of vermiculite and 5-10% of perlite. The auxiliary material compositions comprise, by weight part in the mixture of the main material compositions per cubic meter, 5-15kg/m<3> of sheep manure, 0.5-1.5 kg/m<3> of calcium nitrate, 0.5-1.5 kg/m<3> of slow release fertilizer and 2-4kg/m<3> of ferrous sulfate. 0.5-2.5 kg of solid penicillium inoculants, namely the additives are added in the combined main material compositions and the auxiliary material compositions per cubic meter by volume. The production method of the substrate comprises the steps of preparation of raw materials, the compounding process, adding of the additives and preparation of finished products. As proven by practical application, the seedling-cultivating substrate which is made of waste cassava residues as the major raw material and is capable of preventing and treating the soil-borne diseases is good in quality and low in cost, and the pollution-free seedling-cultivating substrate is provided for the sustainable development of agriculture.

The invention discloses a bacillus subtilis microbial agent for preventing and curing alternaria alternate. The production bacterial strain of the microbial agent is classified and named as the Bacillus subtilis B75 with the preservation number CGMCC No.1700. The bacterial strain is moved to the inclined culture medium of a test tube and cultured with a constant temperature 30 DEG.C+/-1 DEG C for 1-2 days to obtain a test tube strainThe test tube strain is cultured by means of liquid shake-flask fermentation for 30-36 hours to obtain liquid fermenting microbial agent or solid microbial agent. The experiment indicates that the microbial agent as a good application prospect for preventing and curing the alternaria alternate.

The invention discloses an method for simultaneously detecting 124 pesticide residues in tea leaves. The method is characterized by comprising the following steps: A) sample pre-treatment; B) mechanical testing solution treatment: rapidly performing a qualitative and quantitative determination analysis, taking an extract in A, and using acetonitrile for dilution and using liquid chromatogram-massspectrometry for determination; performing the accurate qualitative and quantitative determination analysis, adding high anhydrous sodium sulfate in an amino column, using an acetonitrile-toluene solution for prewashing the column before sample addition, when a liquid surface reaches top of sodium sulfate, rapidly absorbing an above mentioned sample extract to transfer to a purifying column, usingan acetonitrile-toluene solution for eluting pesticide, performing rotation condensation on all filtrates in water-bath at temperature of 45 DEG C to a nearly dry state, drying the material with nitrogen at the temperature of 30-35 DEG C, dissolving residues by an acetonitrile-aqueous solution, filtering the material through a 0.2 [mu]m microfiltration membrane, and performing liquid chromatogram-tandem mass spectrometry; and C) mass spectrometry: performing accurate qualitative and quantitative determination analysis on determination liquid in the step B) by a liquid chromatography-mass spectrometer.

The invention discloses a vulnerability assessment method of a city around an oil and gas pipeline, which comprises the following steps: firstly, selecting vulnerability assessment indexes from threeaspects of pressure, state and response; Step 2, based on the pressure-responsing PSR model, the vulnerability assessment index system of cities around oil and gas pipelines is established, which includes target layer, criterion layer, element layer and index layer. 3, calculate that weight of each index of the criterion layer, the element lay and each layer in the index layer in the evaluation index system; Step 4, evaluating the vulnerability of the cities around the oil and gas pipeline based on the weight of each index of each layer. The invention carries out vulnerability evaluation on the system through a specific index system, quantitatively processes the evaluation result, and accepts the test of practice, so that the evaluation result is more accurate and reliable, thereby enriching the vulnerability evaluation system of cities around oil and gas pipelines and deepening the theory of urban vulnerability evaluation.

The invention discloses a biological agent for controlling a tobacco brown spot. The production strain of the biological agent is sorted and named as Streptomyces globisporus AM6 and the preserving number thereof is CGMCCNo.1701. The prescriptions of the solid and the liquid mediums of the strain are as follows: (1) the incline medium of a test tube is as follows: 200g of fresh potatoes, 20g of dextrose, 17 to 20g of agar, 1000ml of distilled water as well as a natural pH; (2) the prescription of a liquid fermentation medium is as follows: 10.0g of bean powder, 20.0g of cane sugar, 2g of dipotassium hydrogen phosphate, 0.02g of green copperas, 0.5g of calcium carbonate, 0.05g of bitter salt, 1000ml of tap water as well as a natural pH. The invention is prepared into the biological agent by the test tube culturing of the strain and the fermentation culturing of a table concentrator. Test results show that the biological agent provided by the invention has excellent controlling effects on the tobacco brown spot.

The invention belongs to the technical field of fracturing fluids for fracturing stimulation in the process of oil field development, and in particular relates to a peptidomimetic type recyclable cleaning fracturing fluid, which is prepared from the following components by mass percent: 1% to 4% of thickening agent, 0.5% to 2% of potassium chloride, 0.1% to 1.5% of conditioning agent, and the balance of water. The problems that the existing fracturing fluid has large oil-water interfacial tension, the end back flow fluid cannot be effectively used, and a great threat is posed to the environment are solved, the peptidomimetic type recyclable cleaning fracturing fluid has the advantage of reducing the fracturing construction cost, and can be recycled and reused, and the end sewage can be used for profile modification and flooding; the peptidomimetic type recyclable cleaning fracturing fluid has the characteristics of no residue, easiness in gel breaking, good compatibility, low frictiondrag, low damage, and low interfacial tension, and achieves continuous mixing and sand fracturing construction; after the completion of fracturing construction, the back flow fluid can be reused for fracturing fluid preparation, and the end sewage can be used for profile modification and flooding, thereby ensuring green production and sustainable development of the oil field.

The invention discloses an urban greening vegetation intelligent management and control system on the basis of GIS (geographic information systems). The urban greening vegetation intelligent management and control system comprises a GIS platform portion, a soil humidity data collection portion and a water flow switch-on control portion. The GIS platform portion is provided with databases of vegetation coverage regions, vegetation species and soil humidity required by each type of vegetation by means of building; humidity and location information is uploaded to systems by the soil humidity data collection portion by the aid of a humidity sensor and a BDS (Beidou navigation system) receiver; the water flow switch-on control portion comprises a water pipe switch shell, springs, a barrier, a permanent magnet, a winding, a top cover, a relay and a communication antenna, the barrier can be pulled by the springs in normal states, water flow channels in the water pipe switch shell can be blocked by the barrier, the relay can be closed after switch-on signals transmitted by the systems are received by the communication antenna, magnetic force can be generated after the winding is powered on, the permanent magnet can be attracted to drive the barrier to move upwardly, the water flow channels can be exposed, and the vegetation can be irrigated. The urban greening vegetation intelligent management and control system has the advantages that intelligent vegetation irrigation can be intelligently managed and controlled, the urban information application levels can be upgraded, and the urban greening vegetation intelligent management and control system has important significance on urban sustainable development and social progress.

The invention provides a method for preparing slag-free PAC by means of a high-efficiency emulsification shear stirring technology. The method comprises the steps of acid dissolution, recapturing andemulsification shear stirring. The method has the advantages that waste alkali is used for replacing traditional bauxite resources, dust pollution is avoided, no secondary hazardous waste is generated, and the quality of products is ensured; the PAC is quickly prepared by means of the novel high-efficiency emulsification shear mixing technology, the operation is simple, the processing capacity islarge, the production cycle is short, the yield is high, the energy consumption is low, the equipment investment cost is low, and the cost is low. Regeneration and comprehensive utilization of resources including aluminum-containing sludge, waste hydrochloric acid and waste alkali are achieved, waste is turned into treasure, sustainable development of upstream enterprises is ensured, the production cost of the enterprises is saved, and double benefits of economy and environmental protection are achieved. The prepared slag-free PAC is pure, clear, stable in quality, good in fluidity and dispersibility and capable of achieving higher basicity, and the decolorization and turbidity removal capabilities of the PAC are 5-10% times higher than those of general PACs sold on the market.

The invention relates to a nontoxic non-residual soil processing and biological organic fertilizer combination method for preventing and controlling cucumber fusarium wilt, and belongs to an agricultural intensive production technology. According to the method, liquid ammonia is utilized for fumigating and disturbing the original soil microbiologic population, and special bio-organic fertilizers are combined and applied, so the number of beneficial bacteria in the soil is increased, the number of fusarium oxysporum in the soil is reduced (the number of the fusarium oxysporum in the soil is smaller than or equal to 8.4*10<3> cfu per gram of soil, and when the number of the fusarium oxysporum in the soil is below 10*<4>cfu per gram of soil, the cucumber fusarium wilt can be effectively prevented and controlled), and a disease suppression type soil microflora is established. Test results show that after the soil which is subjected to continuous cropping for nine years, has higher cucumber fusarium wilt morbidity and nearly has no harvest is processed by the method, through comparison and contrasting, the morbidity is reduced by 88.5 percent, and the cucumber fruit yield is increased by 350 percent. The method provided by the invention has the advantages that the cucumber fusarium wilt can be effectively inhabited, and the sustainable development of intensive cucumber production is ensured.

The invention relates to the technical field of preparation of novel paper, and specifically to stone paper and a preparation method thereof. The stone paper specifically includes the raw materials of coarse whiting, high density polyethylene, metallocene polyethylene, aluminic ester, polyethylene wax, stearic acid, an antioxidant, and EBS. A process flow is as below: first, evenly stirring coarse whiting and surface treatment agents ethylene wax, stearic acid and EBS, and a coupling agent aluminic ester together in a high-speed mixer through high speed stirring, and modifying the coarse whiting by using the surface treatment agents and coupling agent; then adding the high density polyethylene and metallocene polyethylene, and mixing by stirring; after combination of the above raw materials, conducting extrusion granulation, extrusion casting, three-roll press polish, biaxial tension and corona treatment on the polymer to obtain the stone paper. Biaxial tension process realizes the small difference of tear strength at vertical and horizontal directions of the paper material, and realizes the reduction of original paper density to expand the paper material area, thereby reducing the cost and increasing economic benefit.

The invention provides a method for killing Psa (pseudomonas syringae pv.actinidiae) in kiwifruit pollen. By adoption of ClO2 aqueous solution for treating the kiwifruit pollen, Psa in the pollen can be killed effectively while pollen activity is less affected; by killing of the Psa in the kiwifruit pollen, Psa propagation can be effectively controlled to reduce canker, and sustainable development of the kiwifruit industry is guaranteed. The ClO2 aqueous solution treatment method is combined with pollen suspension prepared before liquid pollination, and the ClO2 aqueous solution in an appropriate amount is added into the pollen suspension to kill Psa. Therefore, simplicity in operation, freeness of complex equipment and low cost are realized.

Belonging to the field of biotechnologies, the invention provides a molecular marking method for identifying a tea clonal variety of tea trees. The method includes the following steps of: 1) putting 1.0g of fresh and tender buds and leaves of a variety to be tested into a mortar, adding liquid nitrogen and grinding the mixture into powder, adding a CTAB buffer solution, conducting water bathing at a temperature of 65DEG C for 30-60 minutes, then adding a DNA extracting solution to obtain the genome DNA of the tea tree variety to be tested; 2) taking the genome DNA extracted in step 1) as a template, using SSR (simple sequence repeat) primers for PCR amplification, and subjecting the amplification product to 10% native polyacrylamide gel electrophoresis, thus obtaining an electropherogram of the variety to be tested; and 3) comparing the electropherogram of the variety to be tested with a standard tea tree variety electropherogram obtained according to the step 1) and step 2), and if the variety to be tested and the standard variety are consistent in band composition, determining the variety to be tested and the standard variety as an identical variety, thus obtaining the purity of the variety to be tested. Compared with other methods, the invention can reflect the genetic background and genetic relationship of tea tree varieties more truly. And the technology provided in the invention can be used as a scientific basis for identifying the authenticity of the tea tree varieties.

The invention discloses a code generation method, device and equipment and a storage medium. The method comprises the steps that model metadata is acquired, and the model metadata comprises at least two data types, a professional model, a logic model, a physical model and an incidence relation among the professional model, the logic model and the physical model; storing the model metadata into a meta-model which is of a library structure; obtaining target data in the meta-model through the integrated development environment; according to the technical scheme, the codes are automatically generated according to the target data, automatic generation and smooth upgrading of data service zero code maintenance can be achieved, the application of the framework lays a good foundation for continuous application of an informatization new technology, and sustainable development of an enterprise data service system is guaranteed.

Provided is an earthquake disaster risk pre-assessment method, which comprises the following steps: 1) extracting data about disaster-pregnant environment and hazard-affected bodies from new data sources of internet websites, social media and e-commerce; 2) analyzing characteristics in the data and dividing disaster grades into positive, middle and negative three grades, each grade being divided into 5 levels; and 3) result risk value= consequence value * exposure value* possibility /50; and 4) according to the maximum membership degree principle, carrying out fuzzy comprehensive evaluation to obtain earthquake disaster grade levels. The method, fully taking multi-aspect influence factors of natural disasters into consideration, starting from big data, for the characteristics of the internet data and according to the data-centered principle, carries out grade division through a certain processing mode and constructs a risk grade system based on big data analysis, so that potential risk in data information can be found quickly, sustainable development of enterprises can be guaranteed favorably, decision efficiency is improved greatly, and key points are pointed out for the earthquake disaster prevention work.