316results about How to "Reduce economic investment" patented technology

The invention relates to a cloud system structure pre-warning system and method for riverway type reservoir tributary bay water bloom. The cloud system structure pre-warning system comprises a monitoring cloud module, an information cloud module, an application supporting module, a water bloom pre-warning module and a discussion decision-making module. The monitoring cloud module is composed of a field information collecting unit and an operation communication unit, storage media of the information cloud module are composed of movable distributed storage station nets combined fixedly, the application supporting module is composed of a basic supporting unit, an application customization unit, a data cooperation unit and an emergency response module, the water bloom pre-warning module is composed of a risk analysis unit and a pre-warning and forecasting unit, and the discussion decision-making module is used for achieving decision-making discussion and information sharing communication in a cloud environment. The cloud system structure pre-warning system and method for riverway type reservoir tributary bay water bloom achieve seamless linkage and operation control over the modules based on a cloud system structure, carry out all-weather monitoring, cloud storage and water bloom risk pre-warning on the inducing factors of the riverway type reservoir tributary bay water bloom and water bloom biochemical properties, and provide a new measure based on the cloud system structure for preventing and reducing water bloom events.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.