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Cloud system structure pre-warning system and method for riverway type reservoir tributary bay water bloom
ActiveCN103678910AEasy to operateRealize random cloud storage of big dataSpecial data processing applicationsCloud storageWarning system
Owner:CHINA THREE GORGES CORPORATION +1
Ecological slope protection type sewage land infiltration system and ecological slope protection type sewage land infiltration method
InactiveCN103395930ASufficient oxygenGuaranteed treatment effectMultistage water/sewage treatmentDitchFilter material
The invention relates to an ecological slope protection type sewage land infiltration system which comprises a grid pond (2), an anaerobic hydrolyzing pond (4) and a stepped land infiltration unit which are sequentially arranged along the gradient of a sloping field from top to bottom, wherein the grid pond (2) is communicated with a ditch (1); the stepped land infiltration unit comprises multilevel slope protection infiltration beds (5); filter materials (7) are filled in the slope protection infiltration beds (5); hygrophyte communities (9) are cultivated on the slope protection infiltration beds (5); a modal conversion assembly (6) used for controlling infiltration speed, waterpower retention time, a filtering layer internal environment and an effluent water mode is arranged between adjacent slope protection infiltration beds (5). The ecological slope protection type sewage land infiltration system disclosed by the invention tolerates the rural sewage quality water flow impact, is difficult to block due to high reaeration capacity, intensifies the denitrification and dephosphorization effect, is green, energy-saving, economic and practicable and has excellent water conservancy and ecology value.
Owner:WUHAN UNIV
Signature verification method and device
ActiveCN107342867ALow costTamper proofKey distribution for secure communicationEncryption apparatus with shift registers/memoriesUSBComputer science
The invention discloses a signature verification method and a device. The signature verification method can include the following steps: receiving a signature request, wherein the signature request contains abstract information of a file and a sender identifier; generating a random number; generating a signature of the file according to a signature generation algorithm and based on the random number, the abstract information and the sender identifier; and saving the signature to a block chain, and returning the random number to a sender sending the signature request. Through the technical scheme of the invention, an electronic signature can be realized without a USB key.
Owner:深圳和信中欧科技有限公司
Preparation method and application of water-based silicon dioxide aerogel reflective heat insulation coating
ActiveCN105820690AReduce economic investmentHigh environmental returnReflecting/signal paintsWater basedSilicon dioxide
The invention provides a preparation method and application of a water-based silicon dioxide aerogel reflective heat insulation coating. Much work is done for the surface modification of silicon dioxide aerogel so that on the premise of not influencing the microstructure characteristics, the effects of energy conservation, emission reduction, heat insulation and heat preservation can be realized by adding the treated silicon dioxide aerogel into a water-based heat insulation reflective coating while greenness and environmental protection are guaranteed; the preparation method is simple, the cost is low, and the water-based silicon dioxide aerogel reflective heat insulation coating is an energy-saving emission-reducing green coating with relatively small economic investment and relatively high environmental reward; and moreover, the invention also provides an application of the water-based silicon dioxide aerogel reflective heat insulation coating.
Owner:孙华杰
Pavement maintained by adopting cold regeneration technology and construction method thereof
ActiveCN101591881AExtended service lifeGuaranteed bonding between layersIn situ pavingsSocial benefitsBasement
The invention relates to pavement maintained by adopting cold regeneration technology, which comprises the following innovation that: the pavement from a milled basement to the surface is provided with a foamed asphalt cold regeneration layer, a modified asphalt hot mixed macadam stress absorbing layer and a single-layer modified asphalt concrete overlay in turn. Diseases caused by a semi-rigid base are prevented by changing a pavement structure, and the service life of a road is prolonged. The invention also relates to a construction process for the pavement maintained by adopting the cold regeneration technology, which mainly comprises the following steps: milling on-site pavement, adjusting gradation, preparing a foamed asphalt cold regeneration mixture, paving on-site, rolling, distributing the stress absorbing layer, and paving the single-layer modified asphalt concrete overlay. The pavement and the method adopt the foamed asphalt cold regeneration technology, thereby realizing recycling an asphalt surface course recycling material and a cement stabilized base recycling material, solving the pollution problem caused by a great amount of discarded pavement materials, saving resources, reducing economic investment, and having good economic benefit, social benefit, environmental benefit and promotion and application value.
Owner:天津市市政工程研究院
Post-grouting capped rigid pile and drainage unit combined foundation treatment technology
Disclosed is a post-grouting capped rigid pile and drainage unit combined foundation treatment technology. The post-grouting capped rigid pile and drainage unit combined foundation treatment technology comprises paving horizontal drainage units on the surface of a soft foundation and constructing vertical drainage units inside the foundation, wherein the horizontal drainage units and the horizontal drainage units are communicated to form drainage channels; constructing rigid piles inside the soft foundation, arranging grouting bags and reinforced concrete pile caps at the tops of the piles to form a controllable support system. When being filled with water and stabilized, the grouting bags can be extruded under the action of upper load to drain water and retract, the load born by the rigid pile can be relatively low, and after water drainage and solidification under the action of the upper load, the bearing capacity of foundation soil can be improved; when the grouting bags are filled with grout and solidified, the rigid piles, the grout and the pile caps form rigid support to bear more upper load and accordingly to reduce the loading pressure of the foundation soil. The post-grouting capped rigid pile and drainage unit combined foundation treatment technology can give full play to the bearing capacity of the foundation soil and reduce the consumption of the rigid pile to reduce the economic input, and meanwhile, can effectively control afterward settlement of a project to reduce upper structural deformation and damage due to overlarge settlement.
Owner:北方国际合作股份有限公司
Method for preparing chitosan into water-soluble chitooligo saccharide
The invention relates to a method for preparing chitosan into water-soluble chitooligosaccharide, which comprises the following steps: using chitosan as a raw material, processing the chitosan by rinsing and drying technology, and immersing the chitosan in a material liquid prepared by purified water and edible hydrogen peroxide; carrying out the processing of microwave radiating degradation to form the mixed liquid of low-molecular chitooligo saccharide which can be dissolved in the material liquid and partial undegraded chitosan, and obtaining residual slag of chitosan and a chitooligo saccharide solution by filtration; and sending the chitooligo saccharide solution into absolute ethyl alcohol, and after alcohol precipitation, carrying out sucking filtration and drying to obtain a finished product of water-soluble chitooligo saccharide. The processing technology of microwave radiating degradation is used, and energy is mased by a physical method to degrade high-molecular chitosan into low-molecular water-soluble chitooligo saccharide with a stable structure, thus no other side product of reaction or pollutant is generated in the degrading process. Compared with the preparing method of the prior art, the invention has the advantages of advanced technology, simple procedures, low investment of production facilities, high product purity, stable quality and the like, and developsa wide market application prospect for the chitosan prepared by taking chitin as a raw material.
Owner:赵建发
Reverse osmosis concentrated water treatment method
ActiveCN106219816AIncrease profitRelieve pressureHeterogenous catalyst chemical elementsCatalyst activation/preparationPtru catalystCatalytic oxidation
The invention discloses a reverse osmosis concentrated water treatment method which comprises the following steps: (1) adding a precipitator and an oxidizing agent into reverse osmosis concentrated water, filtering to obtain a clear liquid, and adding a catalyst used for water treatment into the clear liquid to implement catalytic oxidation to obtain primary treatment water, wherein the acquisition of the primary treatment water further preferentially comprises adsorbing a liquid subjected to catalytic oxidation; (2) performing reverse osmosis treatment on the primary treatment water to obtain secondary reverse osmosis water and secondary reverse osmosis concentrated water; (3) adding the oxidizing agent into the secondary reverse osmosis concentrated water for oxidation to obtain an effluent, wherein the effluent is used for direct discharge, and the acquisition of the effluent further preferentially comprises adsorbing a liquid subjected to oxidation. According to the reverse osmosis concentrated water treatment method, 75-85wt% of water is recycled, the overall use ratio of the water is improved, meanwhile, a small part of water left is treated to reach the discharge standard, the economic input is low, and the method is simple and is easy to operate.
Owner:WANHUA CHEM GRP CO LTD
Harmless pure gas extraction method and double-furnace folding garbage combustion furnace used in same
InactiveCN103695012AImprove utilizationReduce occupancyIndirect heating destructive distillationSpecial form destructive distillationCombustionEngineering
The invention discloses a harmless pure gas extraction method. The method comprises the following steps: burning garbage through a main combustion gasification furnace; drying the garbage before entering a garbage dry distillation furnace by using high-temperature gas, wherein the high-temperature gas is generated through combustion; and baking and performing dry distillation on the garbage in the garbage dry distillation furnace by using high-temperature flame to generate dry distillation gas, wherein the high-temperature flame is generated through combustion. A double-furnace folding garbage combustion furnace used for realizing the harmless pure gas extraction method in the patent claim comprises a furnace body, wherein the furnace body is internally provided with the main combustion gasification furnace and the garbage dry distillation furnace which is externally connected with a negative-pressure vessel; the main combustion gasification furnace is arranged under the garbage dry distillation furnace; the garbage is conveyed and fed into the garbage dry distillation furnace through a sealed garbage conveying chamber; high-temperature gas generated after combustion in the main combustion gasification furnace flows into the garbage conveying chamber.
Owner:湖州富升炭业有限公司
Shared bicycle parking device delivery quantity calculation method
InactiveCN108416515AMeet parking needsMeet the needs of maximum parking capacityApparatus for meter-controlled dispensingResourcesBicycle parkingDelivery cost
The invention discloses a shared bicycle parking device delivery quantity calculation method. Without considering man-made shared bicycle scheduling, layout parameters are set according to the numberof parked shared bicycles. On the basis of satisfying a certain degree of parking demand, the minimum delivery cost and space cost function are taken as goals to construct an integer programming model. The delivery number of shared bicycle parking devices at a planned place is determined. According to the method provided by the invention, under the premise of satisfying the parking demand of bicycles, the governance cost of the problem of shared bicycle chaos is reduced, and the road space utilization rate is improved; and the method facilitates the long-term sustainable development of sharedtransportation.
Owner:WUHAN UNIV OF TECH
Air conditioner fresh air all-in-one machine
InactiveCN105371386ANot easy to carryAdjustable speedLighting and heating apparatusSpace heating and ventilation detailsAgricultural engineeringPre cooling
The invention discloses an air conditioner fresh air all-in-one machine. The air conditioner fresh air all-in-one machine comprises a compressor, an evaporator and a condenser, wherein the compressor, the evaporator and the condenser are mounted in the same machine body; the machine body comprises a fresh air channel; the fresh air channel is formed in the upper part of the machine body and comprises a fresh air inlet and a fresh air outlet which are formed in opposite sides of the machine body; the evaporator is arranged at the fresh air inlet; and a filter unit is further arranged in the fresh air channel. The air conditioner fresh air all-in-one machine not only can supply fresh air, but also can be used for pre-cooling or pre-heating the fresh air, and further can be used for filtering the fresh air, so that an indoor environment can be fresh, healthful and comfortable.
Owner:GREE ELECTRIC APPLIANCES INC
Riverside enhanced ecosystem integrating functions of regulation and storage treatment and landscaping
ActiveCN108385819AProtect environmentAchieve energy saving and emission reductionWater/sewage treatment by centrifugal separationFatty/oily/floating substances removal devicesAquatic animalLandscaping
The invention discloses a riverside enhanced ecosystem integrating functions of regulation and storage treatment and landscaping. The riverside enhanced ecosystem comprises a water storage, a purification and landscape pool, a rainwater pipe, a rainwater branch pipe, a first electromagnetic control valve, a second electromagnetic control valve, a cyclone sand-settling device, a lift pump, a grille, a water inlet pipe, an artificial water grass area, an ecological floating island device, an aeration system, an aquatic animal and plant area, a functional packing filter band, a water outlet pipe,a gate valve, an ecological revetment and a wooden plank road. The riverside enhanced ecosystem has the functions of rainwater regulation and storage, water purification and landscaping, and can achieve real-time conversion of multiple functions according to different seasons, different water quality conditions and different actual needs.
Owner:BEIJING SOUND ENVIRONMENTAL ENG +1
Water conservation fishery method capable of improving water quality of lakes and reservoirs intermediately and lightly eutrophicated
InactiveCN101654301AReduced predationNo ecological risk problems caused by invasionPisciculture and aquariaBiological water/sewage treatmentEutrophicationSilver carp
The invention provides a water conservation fishery method capable of improving water quality of lakes and reservoirs intermediately and lightly eutrophicated. The method is characterized by comprising the following steps of: (1) selecting lakes or reservoirs heavily, intermediately or lightly eutrophicated; (2) selecting the whole lakes with an unifrom eutrophicated level or main polluted areas of the lakes to release chubs and fat head fishes in large quantity, wherein the area for cultivating the chubs and the fat head fishes is more than two thirds of the pollution area; (3) releasing thechubs and the fat head fishes, which are one year or two year old, at the same time, controlling the total density of the chubs and the fat head fishes between 5 and 100g / m<3> according to the eutrophicated level of the water body, and controlling the total weight ratio of the chubs to the fat head fishes to be between 1:4 and 4:1 according to water conditions; and (4) when the chubs and the fat head fishes are released, controlling the quantity of predacious fishes to be below 0.05g / m<3>, and simultaneously releasing or additionally cultivating fishes which eat organic debris and of which thereleasing quantity is controlled between 0.5 and 20g / m<3>.
Owner:SHANGHAI OCEAN UNIV
Method for detecting mixed acid solution in manufacturing process of polycrystalline silicon solar cell
ActiveCN102621273ASimple processReal-time monitoring of the texture processAnalysis using chemical indicatorsChemical analysis using titrationFluorosilicate saltPhysical chemistry
The invention discloses a method for detecting a mixed acid solution in the manufacturing process of a polycrystalline silicon solar cell. The method is used for detecting a mixed acid system which consists of hydrofluoric acid, nitric acid and fluorosilicic acid. The method comprises the following steps of: detecting the total acid concentration of the solution by using an acid-base neutralization method; heating and boiling the solution which is subjected to acid-base neutralization, decomposing fluorosilicate to generate hydrogen ions, determining the content of the hydrogen ions by alkali liquor titration, and thus obtaining the concentration of the fluorosilicic acid by calculation; detecting the concentration of the nitric acid in the mixed acid solution by using an oxidation-reduction titration method; and subtracting the concentration of the fluorosilicic acid and the concentration of the nitric acid from the total acid concentration, and thus obtaining the concentration of the hydrofluoric acid. The method is simple in flow, easy to operate and low in economic investment and can be applied to long-term monitoring of a texturing process and an etching process in the production process of the polycrystalline silicon solar cell and stability of equipment, manpower resources are saved, high-end equipment is eliminated, detection accuracy can be over 95 percent.
Owner:济宁高新科达科技项目服务有限公司
Engine piston general fatigue test device
InactiveCN103884497AGuaranteed synchronization testShorten the test cycleMachine part testingCombustion chamberLow voltage
The invention provides an engine piston general fatigue test device which comprises a bearing cylinder (1), a test piston (6), an adjustment cylinder sleeve (2), a bearing end cover (3), a piston seat (4) and a piston pin (5). The bearing cylinder (1) is provided with a stepped cylinder hole used for mounting the adjustment cylinder sleeve (2), and the stepped cylinder hole goes through the left and right sides. The outer circle of the adjustment cylinder sleeve (2) is a stepped structure and is matched with the cylinder hole of the bearing cylinder (1). Bolt holes used for connecting the bearing end cover (3) are uniformly distributed at two sides of the bearing cylinder (1). The periphery of the bearing end cover (3) is provided with a bolt hole which is connected with the bearing cylinder (1), and the middle of the bearing end cover (3) is provided with a bolt hole and a positioning counterbore which are connected with the piston seat (4). An electro-hydraulic servo system produces a pulsating load. A phase difference between high voltage and low voltage effects is 180 degrees. According to the device, a two-opposed-piston horizontal layout mode is employed, a simulation combustion chamber is shared by two pistons, the synchronous test of two pistons is ensured, and the test cycle and cost are greatly reduced.
Owner:CHINA NORTH ENGINE INST TIANJIN
Water-saving green drip irrigation cultivation method of facility melons
InactiveCN107836290AImprove the control of plant diseases and insect pestsImprove soil root zone environmentClimate change adaptationRenewable energy machinesFungicideFertilizer
The invention discloses a water-saving green drip irrigation cultivation method of facility melons. The cultivation method comprises the steps of building a micro-nano bubble oxygen-adding drip irrigation system, a solar heating system, a greenhouse structure and a disease and insect pest green prevention and control system. Micro-nano bubble water generated through a micro-nano bubble generatingdevice has a high dissolution capacity, the absorption and utilization of crops to fertilizer can be improved, the fertilizer applying amount is reduced, and a desalination salt separation area is formed in a root area; before the crops are planted, by conducting micro-nano bubble water drip irrigation with the assistance of an ultrasonic sterilizing lamp to sterilize and disinfect soil and air, breeding and propagation of pests can be effectively controlled. In the cultivation process, water-fertilizer-air integrated irrigation by adding oxygen through the micro-nano bubble water is conductedwith the assistance of a compound EM fungicide, and the high yield and good quality can be guaranteed while the utilization rate of the fertilizer is increased, the soil salinization and ventilationare improved, and the irrigation amount is saved.
Owner:CHINA AGRI UNIV
Gas bubble pump with gas bubble collecting device
InactiveCN101725501AReduce energy lossStable performancePumpsPositive-displacement liquid enginesEngineeringLow graded
The invention relates to a gas bubble pump with a gas bubble collecting device. The gas bubble pump is characterized in that the lower part of a lifting pipe of the gas bubble pump is connected with a low-level liquid storage device; the low-level liquid storage device is connected with a generator; a heat exchanger is arranged in the low-level liquid storage device and is connected with an outside heat source; the position above and perpendicular to the heat exchanger is connected with a gas bubble collecting device; the upper part of the low-level liquid storage device forms a horn-shaped structure; the gas bubble collecting device is fixedly connected with the inner wall of the low-level liquid storage device through three rib plates; the lower part of the low-level liquid storage device forms a horn-shaped structure; the upper part is connected with an exit pipe opening; and the horn-shaped structure at the upper part of the low-liquid storage device is parallel with the horn-shaped structure at the lower part of the low-liquid storage device. The invention has simple structure, the amount of the lifted liquid in the lifting pipe in unit time is maximum, and the efficiency of the gas bubble pump is enhanced. The low-grade unstable heat source can be directly utilized, the manufacture cost is low, and the efficiency is high.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Application method of fixed type asymmetric bridge cantilever assembly equipment
ActiveCN106758828ASolve construction problemsReduce economic investmentBridge erection/assemblyCantilever
The invention discloses an application method of fixed type asymmetric bridge cantilever assembly equipment. The bridge cantilever assembly equipment comprises a main girder, landing legs arranged at the lower part of the main girder, a first crown block and a second crown block, wherein the first crown block and the second crown block are arranged on the main girder and can move along the main girder; and the landing legs include fixed landing legs and mobile landing legs. According to the suggestion of the application method, the method comprises the steps of (1) arranging the first crown block and the second crown block on the main girder at the center of a pier; (2) moving the first crown block and the second crown block to the main girder at the left side of the pier; (3) lifting beams by the first crown block from the left side and transporting to the installation position at the right side along the main girder; (4) lifting prefabricated beam segments to the installation position by the second crown block; and (5) adjusting and fixing fall positions of two symmetric block segments to complete installation of the symmetric beam segments.
Owner:TENGDA CONSTR GROUP CORP
Roadway support method for preventing rock burst
InactiveCN104612705AReduce intensityImprove the safety protection factorUnderground chambersTunnel liningShock waveRock bolt
The invention discloses a roadway support method for preventing rock burst. The roadway support method includes the following steps that a, according to mine vibration signals measured under a coal mine and located at different energy levels, the vibration frequency range under the coal mine is obtained; b, metamaterial energy-absorbing slabs are manufactured, and the wave-absorbing frequency band of the slabs is within the mine vibration frequency range; c, a roadway is excavated according to the shape of a roadway section, anchor rod drilling holes are drilled in a hanging arch range, and the metamaterial energy-absorbing slabs are anchored to a roof and a lane side of the roadway through anchor rods. By means of the wave-absorbing performance of a metamaterial, shock waves of rock burst can be absorbed actively, and the intensity of rock burst is relieved, so that the support effect is enhanced, and the safety protection coefficient of workers under the mine is increased.
Owner:CHINA UNIV OF MINING & TECH
Solvent-free oil pipeline anti-corrosion and anti-drag special coating and preparation method thereof
ActiveCN111205746AImprove thixotropyEvenly dispersedAnti-corrosive paintsEpoxy resin coatingsFatty amineSolvent free
The invention discloses a solvent-free oil pipeline anti-corrosion and anti-drag special coating and a preparation method thereof, belongs to the field of anti-corrosion coatings, and solves the problems that an existing solvent-free anti-corrosion coating is high in construction difficulty, a coating is prone to scale formation and the like. The coating is prepared from two components, wherein the component I is prepared from bisphenol A epoxy resin, polyethersulfone modified epoxy resin, aromatic hydrocarbon resin, glass fiber powder, polytetrafluoroethylene wax powder, potassium hexatitanate whiskers, silica powder, a dispersing agent, a leveling agent, an epoxy active diluent, polyethylene wax powder, talcum powder, phthalocyanine blue, lemon yellow and an antifoaming agent, and the component II consists of a cashew nut shell oil modified phenolic aldehyde amine curing agent and a resin type modified fatty amine curing agent. The preparation method comprises the following steps: mixing the component I and the component II according to a mass ratio of (4-12): 1, and uniformly stirring. The coating has the advantages of favorable long-acting property, favorable flexibility, favorable temperature resistance, favorable chemical resistance, favorable drag reduction effect, environment friendliness and easiness in construction. The preparation method is simple, and the productionefficiency can be obviously improved.
Owner:西北永新涂料有限公司
Compound fertilizer special for organic and inorganic long-acting salvia miltiorrhiza
InactiveCN102924191AMeet nutrient needsMaintain and improve structureFertilizer mixturesSalvia miltiorrhizaManganese sulphate
The invention provides a compound fertilizer special for organic and inorganic long-acting salvia miltiorrhiza. The compound fertilizer special for the organic and inorganic long-acting salvia miltiorrhiza is prepared by mixing, by weight, large-granule urea 12-14 parts, slow-releasing sulfur-clad urea 28-32 parts, diammonium phosphate 16-19 parts, potassium sulphate 18-20 parts, manganese sulfate 0.5-1.2 parts, zinc sulfate 0.5-1.2 parts and organic fertilizer granules 26-30 parts. The organic fertilizer granules are prepared by pig manure and straws. The weight ratio of the pig manure to the straws is 2:1. A binding agent occupying 5-9% by weight of the pig manure and the straws is added into the pig manure and the straws to be directly extruded and granulated to prepare the organic fertilizer granules. The binding agent is polyisocyanate.
Owner:INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
Chemical plating method for preparing ultrathin palladium film with high specific surface area
InactiveCN102011108AImprove continuityImprove hydrogen permeabilityLiquid/solution decomposition chemical coatingChemical platingAlloy
The invention relates to a chemical plating method for preparing a palladium film or a palladium and silver alloy film, which comprises the following steps of: dividing plating solution of palladium salt complex or plating solution of palladium and silver amine salt complex into two parts by utilizing a porous carrier, adding a reducing agent to the plating solution at one side, making the reducing agent have self catalytic reaction with palladium salt complex or palladium and silver amine salt complex in the plating solution through holes and flaws, and forming a palladium film at one side of the porous carrier, which comes into contact with the palladium salt complex or the palladium and silver amine salt complex. High specific surface area can be obtained with the chemical plating method without any extra complicated processing, and the hydrogen permeation properties and the surface activity of the film can be enhanced. The palladium film prepared with the method is ultrathin, so resource waste can be reduced. Besides, the invention also has the advantages of simple technique, simple equipment and economic investment saving.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Wrapped urea sustained-release fertilizer and preparation method thereof
InactiveCN102424631AControl release speedImprove utilization efficiencyBio-organic fraction processingClimate change adaptationSide effectSodium Bentonite
The invention discloses a wrapped urea sustained-release fertilizer and a preparation method thereof. According to the invention, rural organic solid waste rich in organic matters is adopted as a raw material; plant ash and an anaerobic fermentation product biogas residue are bonded with the bonding property of bentonite; the mixture is well mixed according to a certain ratio, and is used for wrapping urea, such that the wrapped sustained-release fertilizer is obtained. The fertilizer provided by the invention is advantaged in simple production method, and low cost. The materials are easy to obtain. The sustained-release fertilizer is especially suitable for rural family daily fertilization. With the fertilizer and the preparation method, the utilization efficiency of the fertilizer is improved; the fertilizer dosage and the economic investment of farmers are reduced; no side effect is brought to animals and growing environments thereof; and no soil agglutination is caused.
Owner:KUNMING UNIV OF SCI & TECH
Fertilizer special for garlic and round onion
The invention relates to a fertilizer special for garlic and round onion. The fertilizer comprises the following active ingredients in parts by weight: 12-18 percent of nitrogen, 3-7 percent of phosphorus, 13-17 percent of potassium, 20-30 percent of organic matters, 0.1-3 percent of rare earth, 1-5 percent of trace elements, 0.1-2 percent of an expansion agent, 0.1-2 percent of vegetable proteins and 0.1-3 percent of chitin. The fertilizer special for garlic and round onion can be used for activating soil, increasing soil activity, changing soil acidity and alkalinity, enhancing the photosynthesis of garlic and onion, greatly promoting root system development, increasing fibrous roots and hair roots, improving absorption of nutrients in soil, and absorbing and utilizing nutrients left unused in soil for years, so that fold increase in the fertilizer effect is prompted, and increase in yield is prompted.
Owner:沙绍忠
Loach ecological breeding method
InactiveCN103718997AGuaranteed tasteNo pollution in the processClimate change adaptationPisciculture and aquariaWater ChestnutsGreenhouse
The invention discloses a loach ecological breeding method. The loach ecological breeding method comprises the following steps that (1) base fertilizer is filled, fungus base fertilizer is put into greenhouse rice fields according to the proportion of 300 kilos per mu, and the base fertizlier is organic fertilizer formed by fermenting pleurotus eryngii slag; (2) early-maturing water chestnuts are transplanted into the greenhouse rice fields according to the proportion of 600 bundles per mu; (3) loaches are put into the greenhouse rice fields according to the proportion of 5 kilos per mu in April every year, and the loaches are bred by themselves; (4) organic fertilizer is applied, and the organic fertilizer containing chicken manure and EM fungus fermentation broth is put into the greenhouse rice fields every half a month. The loach ecological breeding method has the advantages that water has two purposes, pollution is avoided, the yield is high, economical investment is small, reward is good and the taste of the loaches is guaranteed.
Owner:JIANGSU BAILUGANG MODERN AGRI
Energy-saving and electricity-saving gas compression system
ActiveCN105464931AIncrease motivationIncrease air intakePositive displacement pump componentsTransportation and packagingElectricityEngineering
The invention relates to an energy-saving and electricity-saving gas compression system. The gas compression system comprises a heat exchanger, a steam turbine and a draught fan. The power output end of the steam turbine directly drives the draught fan or is in transmission connection with an electric generator and the electric generator provides electric power for the draught fan for operation. Besides a main bypass, a first bypass is further led out of an outlet of a gas compressor and connected with a gas inlet of the heat exchanger to provide a heat source for the heat exchanger. The heat exchanger is further connected with the steam turbine through a heat exchange pipeline which conveys a heat exchange agent to provide a power source for the steam turbine. An outlet of the draught fan is connected with an inlet of a gas mixer. According to the energy-saving and electricity-saving gas compression system, heat energy of the gas compressor is recycled through the heat exchanger and the steam turbine, so that the power and gas inflow of gas of the inlet of the gas mixer are improved, and the air displacement of an air compressor is increased. Energy and electricity are saved, and the energy-saving and electricity-saving effects are significantly effective.
Owner:开封中化换热设备有限公司 +1
Harmonic measuring point optimal allocation method for distribution network
ActiveCN105184508AOptimizationGuaranteed data requirements for harmonic analysisForecastingResourcesHarmonicSide information
The invention discloses a harmonic measuring point optimal allocation method for a distribution network. The method comprises the following steps: 10) network topology and load-side information are acquired, and a network topology database and a load-side information database are built; 20) information check is carried out, if integrity check requirements are met, a step 30 is carried out, or otherwise, the step 10 is returned; 30) zero injection nodes are judged, and based on the load-side information in the load-side information database, whether the zero injection nodes exist in nodes is judged; 40) preliminary equivalent treatment on the network is carried out, and according to an observability rule, equivalent treatment is carried out on topology of the distribution network, and the topology of the distribution network is simplified; and 50) measuring points are optimally allocated, and according to a measuring point allocation equivalent rule, the system is optimally allocated, and an allocation scheme with the fewest measuring points is acquired. The allocation method can carry out harmonic measuring point optimal allocation on the multi-feeder line distribution network, and system observability is realized by using the minimal measuring allocation points.
Owner:SOUTHEAST UNIV
Low-cholesterol and low-acid value beef tallow and preparation method thereof
PendingCN110283656AEvenly heatedKeep special flavorFatty acid esterificationFatty-oils/fats refiningFlavorAcid value
The invention discloses low-cholesterol and low-acid value beef tallow and a preparation method thereof. The preparation method comprises the following steps: decocting a beef fat raw material through gradient temperature rise, and performing the steps of enzymolysis treatment of cholesterol oxidase and lipase and the like to prepare the high-quality beef tallow with low cholesterol and low acid value . The beef tallow is decoted by adopting gradient temperature rise, so that the beef tallow is prevented from being uniformly heated in the decotion process, and being easily oxidized under the high-temperature state for a long time. According to the invention, the beef tallow is refined by adopting gradient decotion and a biological enzymolysis method; the safe and non-toxic cholesterol oxidase rapidly reduces the cholesterol content in the beef tallow; the acid value of the beef tallow is reduced through the enzymolysis of the lipase; the advantages of low cost, convenient operation, health and free of pollution, no loss of flavor, relatively high product quality and the like are realized.
Owner:GUANGHAN HANGJIA FOOD CO LTD
Method for electrochemical reinforcement of down dip weak interlayer of strip mine slope
InactiveCN111364485AHigh strengthHigh physical and mechanical strengthExcavationsSoil preservationPotential differenceWater flow
The invention discloses a method for electrochemical reinforcement of a down dip weak interlayer of a strip mine slope. The method comprises the steps that anodes and cathodes are alternately arrangedin the weak interlayer at intervals; all the anodes and cathodes are correspondingly and sequentially connected in series through wires and then connected with a direct current power supply, and theouter end parts of the anodes communicate with a solution bin containing an electrolyte solution through a solution delivery pipe; and the electrolyte solution in the solution bin is delivered into ananode metal pipe through the solution delivery pipe, and overflows into the weak interlayer from drilled holes in the surfaces of the anodes, and after the anodes are powered by the direct current power supply, the anodes and the electrolyte solution can react chemically to form metal compounds and hydrated cations. The metal compounds play a role in cementing and solidifying soil of the weak interlayer, the potential difference between the anodes and the cathodes drives the water inside the weak interlayer to move to the cathodes and enter into a cathode metal pipe through the drilled holes,the water flows by gravity to flow out freely from the lower end of the cathode metal pipe and be discharged to the outside of the weak interlayer, and the reinforcement effect of the weak interlayeris good.
Owner:CHINA UNIV OF MINING & TECH
Wire strand defect detection method for transmission line
ActiveCN107886493ARealize intelligent processingImprove recognition efficiencyImage enhancementImage analysisFeature extractionImage segmentation
The invention discloses a wire strand defect detection method for a transmission line. Through the method, a wire strand defect of the transmission line can be intelligently recognized. According to the wire strand defect detection method for the transmission line, an image is preprocessed; then wires are separated from a background image through image partitioning; next, feature extraction is performed on a wire image; and finally strand recognition is performed on the wires. The whole process can be automatically completed through a computer, intelligent processing of transmission line inspection data can be realized, the wire strand defect of the transmission line can be intelligently recognized, and recognition efficiency is greatly improved; and moreover, problems existing in manual observation can be greatly reduced with the efficiency, misjudgment or missing judgment caused by manual experience or working strength fatigue is avoided, overall working efficiency is improved, a fine management mode is improved, the intelligent level is raised, a large amount of manual checking time is saved, and a lot of economic investment is saved. The method is suitable for application and popularization in the technical field of image recognition.
Owner:CHENGDU SIHAN TECH
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