109results about How to "Alleviate resource scarcity" patented technology

The invention relates to the technical field of network communication, in particular to a method, a device and a system for implementing parking service. The method is applied to the system which comprises a driver client, a server and a parking space master client. The method includes acquiring parking request transmitted by the driver client; matching parking spaces according to the parking requests, generating corresponding parking space information corresponding to the successfully matched parking spaces and transmitting the corresponding parking space information to the driver client; receiving parking space selection information generated by the driver client according to the parking space information; generating reservation order forms according to the parking space selection information and the parking requests. The parking spaces include parking spaces registered via the parking space master client. The method, the device and the system have the advantages that the parking space utilization efficiency can be improved by means of applying the method for implementing the parking service, and the problem of parking difficulty can be solved.

The invention discloses bio-fermented component vegetable protein and a preparation method thereof. Major raw materials are prepared by fermenting with fermentation species; by adopting a bio-fermentation method, the crude fiber content is decreased, the amino acid content is increased and the proportions of various amino acids are balanced while toxic substances and anti-nutritional factors are removed from high-protein cotton dregs, high-protein sunflower seed dregs, rapeseed meal, high-protein safflower dregs and grape pip dregs; the nutritional value of the obtained component vegetable protein reaches and surpasses that of bean dregs; and the component vegetable protein can be used for completely replacing bean dregs in feed application, and particularly has remarkable application effects in aquatic feeds and livestock feeds.

The invention belongs to the field of soft soil foundation treatment, and relates to a biological cement reinforced roadbed on an under-consolidation silt blowing foundation and a construction method.Grille gravel piles in the roadbed penetrate through the under-consolidation silt blowing foundation and are embedded into a lower horizontal bearing layer. A plastic drainage plate is driven into the under-consolidation silt blowing foundation. A biological cement-grille reinforced cushion layer is flatly paved on the upper surface of the grille gravel piles. Non-woven geotextiles are laid on the upper surface and the lower surface of the biological cement-grille reinforced cushion layer. The non-woven geotextiles and a sealing film are sealed at the bottom of a tamped clay sealing ditch. Roadbed filling soil is packed on the upper surface of the biological cement-grille reinforced cushion layer and on the non-woven geotextile. Biological waterproof layers are arranged on the upper surface and the side surface of the roadbed filling soil. A soil layer is arranged on the biological waterproof layer on the roadbed side face, and slope protection vegetation is planted to form a roadbedslope ecological waterproof protection layer. The roadbed has the advantages of being reasonable in structure, high in bearing capacity, short in construction period, environmentally friendly and thelike, and is a green ecological structure worthy of popularization.

The invention discloses environmental-protection diesel oil and a preparation method thereof. The diesel oil is prepared from the following components by weight percentage: 12-20% of vegetable oil and fat, 30-60% of a distilled waste oil extraction liquid, 15-30% of fusel oil, and 15-30% of raffinate oil. The preparation method comprises the steps: metering the mass ratios of various raw materials, mixing and stirring, metering and pumping into a normal-temperature and normal-pressure vessel, cycling for 2-3 times through a high-shear emulsifying mixer, standing overnight, and filtering to obtain the product. The environmental-protection diesel oil has the advantages that the diesel oil makes full use of waste resources and renewable energy sources, can ease exploitation and consumption of petroleum resources, is wide in raw material sources, low in cost, good in economic benefits, rich in oxygen, good in combustion performance, complete and full in combustion, high in thermal efficiency and low in sulfur content, has a few of exhaust gas emission pollutants reduces machine corrosion and sulfide emissions, and can be widely applied in the application fields of transport vehicles, ships, engineering machinery halls and the like adopting the petroleum diesel oil.

The invention provides a high-recovery-rate method for recovering noble metal platinum with low impurity element content and high purity, which comprises the following steps: 1) putting a noble metal platinum sample into a container, firing and cooling; 2) preparing a dissolution agent by using 36-38 wt% hydrochloric acid and 66-68 wt% nitric acid in a volume ratio of (1-4):1 a dissolution reagent; 3) adding the prepared dissolution reagent into the cooled container, and heating until the metal platinum is completely dissolved; 4) evaporating the solution by heating to the nearly dry state, adding hydrochloric acid, and evaporating the solution by heating to the nearly dry state; 5) dropwisely adding an ammonium chloride solution into the container, and filtering to obtain an ammonium chloroplatinate precipitate; and 6) putting the ammonium chloroplatinate precipitate into the container, firing and cooling. The metal platinum recovered from the noble metal platinum sample has the advantages of low impurity element content and high purity; and the method provided by the invention enhances the recovery rate of platinum, has the advantages of simple technical process, low cost and high recovery value, and is beneficial to energy saving, emission reduction and environmental protection.

The invention relates to the field of building materials, and provides a basalt fiber reinforced sea sand cement-base composite heat insulation wall plate and a preparing method of the basalt fiber reinforced sea sand cement-base composite heat insulation wall plate. The basalt fiber reinforced sea sand cement-base composite heat insulation wall plate is a novel composite heat preservation wall plate formed by using basalt fiber bar reinforced sea sand cement-base rib beams and basalt fiber mesh reinforced sea sand cement-base thin plates as major stress components, using heat preservation and insulation plates as embedded plates and using gypsum decoration plates as inner panels through compounding. The wall plate has the characteristics that the weight is light; certain pressure-resistant capability and shear-resistant capability are realized; the durability is high; and the waterproof and heat preservation and insulation performance is good, and the like. The basalt fiber reinforced sea sand cement-base composite heat insulation wall plate is suitable to be used as a building external wall plate, particularly for external walls of a coastal building.

The invention relates to a titanium carbonitride metal ceramic sealing element and a preparation method thereof. The sealing material of the titanium carbonitride metal ceramic sealing element consists of titanium carbide, titanium nitride, Ni, tungsten carbide, Mo and carbon black. The titanium carbonitride metal ceramic sealing element is prepared from the components in percentage by weight. The titanium carbonitride metal ceramic sealing element has excellent high-temperature anti-oxidation performance and good wear resistance and corrosion resistance; moreover, abundant titanium resource in China is used as a main raw material to replace rare tungsten resource, thereby reducing the use of tungsten, reaching the purpose of reducing cost and alleviating the resource shortage.

The invention provides a method for preparing starch-based biodegradable plastic. The starch-based biodegradable plastic is prepared by using cassava starch as a raw material and using a modified starch and biodegradable high-molecular polymer blending technology line. The modified starch is prepared by activating dry starch, adding an esterification reagent to the pretreated activated starch, and then adding a solid coupling agent. The biodegradable plastic products are prepared by blending the modified starch, an ethane/vinyl alcohol copolymer, polyvinyl alcohol, a plasticizer and an auxiliary agent.

The invention discloses a Websocket-based front bank transaction system building method, and belongs to the technical field of front bank transaction systems. The technical problem about how to introduce a Websocket into the front bank transaction system is solved. According to the technical scheme, the method comprises the steps of firstly, building a Websocket server, building a Websocket client, and deploying the front bank transaction system. According to the step of building the Websocket server, a Websocket Server is initialized, Server Open, Server Close, Server Message and Server Error message handling functions are defined, a Websocket Server message processing function is assigned, a Websocket service is started, and the Websocket Server.send is called. According to the step of building the Websocket client, a server IP address and a monitoring port number are obtained, the Websocket Client is initialized, on Open, on Close, on Message, on Error message processing functions are defined, the Websocket Client is started for building connection, the Websocket client message processing function is assigned, and the Websocket Client.send is called.

The invention belongs to the field of building materials. A red sandstone aerated concrete is characterized by being prepared from dry materials and water, and the ratio of water to material is 0.50-0.64. The dry materials include, by weight, 8%-15% of cement, 50%-75% of red sandstone, 10%-20% of lime, 1%-5% of gypsum, 0.5%-3% of metakaolin, 0%-3% of calcined hydrotalcite, 0.02%-0.15% of aluminum powder paste, 0.2%-5% of water glass and 0.05%-2% of a modifier, wherein the water glass is calculated by the solid content, and the ratio of water to material calculates the water contained in the water glass. The invention utilizes the red sandstone to prepare the energy-saving insulation wall material in line with the standard requirements, improves utilization of red sandstone, and eases the problem of shortage of river sand resources.

The invention discloses a formula of a floating urea sustained release expanded feed for cattle and sheep. The feed comprises urea, an energy feed, a protein feed, mineral salt, an adsorbent, an antioxidant and a mildewproof agent. The floating urea sustained release expanded feed for cattle and sheep is prepared by the steps of: crushing the raw materials, metering according to a certain proportion, mixing, hardening and tempering, performing extrusion puffing and granulating, and drying. The feed has the advantages that: the feed suspends in water and does not sink, the basic shape is kept in a longer time, and the detention time in rumens is relatively longer, so the feed cannot enter rear digestive tracts of the rumens due to the external flow of rumen fluid; the utilization efficiency of urea nitrogen is improved and the ammonia poisoning caused by the rapid decomposition of urea is avoided; meanwhile, protein feed sources are saved, and the raising cost is reduced.

The invention provides a preparation method of rice seedling raising substrate, and solves the resource consumption problem caused in substrate preparation in the prior art. The preparation method of the rice seedling raising substrate includes: S1, fermenting raw material, and performing solid-liquid separation on the fermented material; S2, processing solid obtained after the solid-liquid separation in step S1 so as to reduce water content in the solid; S3, after mixing turfy soil and vermiculite, after being processed, mixing the turfy soil and vermiculite with the solid after being processed in step S2, and carrying out secondary fermentation on a formed mixture; S4, adding mixing components in the mixture after the secondary fermentation; S5, adding reactant in the mixture after being added with the mixing components for acid modulation treatment. The substrate prepared through the preparation method of the rice seedling raising substrate can replace turf for raising seedlings, and then resource consumption is avoided.

The invention discloses a chlorosulfonated polyethylene rubber/biomass composite plate. The chlorosulfonated polyethylene rubber/biomass composite plate is characterized by being made from the following raw materials: rice straw, wheat straw, a sodium hydroxide solution, n-propyl alcohol, maleic anhydride, azodiisobutyronitrile, acetone, styrene, N,N-dimethyl-4-pyridylamine, montmorillonoid, sodium hexametaphosphate, cocamidopropyl betaine, vinyl triethoxysilane, chlorosulfonated polyethylene rubber, zinc oxide, dipentamethylenethiura tetrasulfide, imarcaptoacetate dioctyltin, a proper amount of hydrochloric acid solution and a proper amount of deionized water. The made chlorosulfonated polyethylene rubber/biomass composite plate has the advantages of stable size, wear resistance, corrosion resistance, nailing, sawing and pivoting properties, waterproofness, mold resistance, worm damage resistance, wide application and the like.

The invention discloses an FRP spiral bar enhanced stainless steel tube seawater and seasand concrete structure, which comprises a rectangular stainless steel tube (1), an anchoring part (2), an FRP spiral bar (3) and seawater and seasand concrete (4). The FRP spiral bar enhanced stainless steel tube seawater and seasand concrete structure is characterized in that the rectangular stainless steel tube (1) is made of an anticorrosion weather-resistant stainless steel material, the anchoring part (2) is a stainless steel block with a reserved hole, the FRP spiral bar (3) penetrates through the reserved hole of the anchoring part (2) to rotate upwards, the diameter of the reserved hole of the anchoring part (2) is 10mm or more lager than that of the FRP spiral bar, a gap between the FRP spiralbar (3) and the reserved hole of the anchoring part (2) is densely filled by seawater and seasand concrete, and the seawater and seasand concrete (4) is poured into the rectangular stainless steel tube (1). The structure has the advantages of high bearing capacity, good ductility and good durability; seasand aggregate and seawater can be directly utilized to prepare poured seawater and seasand concrete; the structure has economic engineering construction cost, saves resources and is especially suitable for vertical structural members of island engineers and coastal regions.

The invention provides a compound fermentation biological feed and a preparation method thereof. The method comprises the steps of fermentation of base material components, a fermentation process and the like. The compound fermented biological feed is prepared from the following raw materials in parts by weight: 65 to 72 percent of corn, 5 to 12 percent of soybean meal, 9 to 12 percent of rice bran meal, 7 to 10 percent of bran, 1.0 to 1.5 percent of mountain flour, 0 to 0.2 percent of calcium hydrophosphate, 0.5 to 0.9 percent of lysine, 0 to 0.1 percent of methionine, 0.1 to 0.2 percent of threonine, 0 to 0.1 percent of tryptophan, 0.2 to 0.5 percent of table salt, 0 to 0.05 percent of phytase, 0.01 to 0.03 percent of multi-vitamin and 0.2 to 0.3 percent of multi-mineral. The six fermentation strains, namely lactobacillus rhamnosus, lactobacillus plantarum, bacillus licheniformis, bacillus subtilis, saccharomyces cerevisiae and candida utilis, are adopted. According to the present invention, the high-quality biological fermentation feed is produced by using the conventional complete feed, the nutrition is balanced, the palatability is good, the concentration of ammonia gas and hydrogen sulfide in the manure odor of the fattening pigs can be significantly reduced by more than 60%, and the air environment of the pig house is improved; meanwhile, the feed conversion ratio can be reduced by 14.5%, the production performance is effectively improved, and the feed cost is remarkably reduced.

The invention discloses yeast culture and preparing method and application thereof. The method for preparing the yeast culture includes the following steps: after activating the brewer's yeast with slant strains, the barms acquired continues to inoculate for seed solution preparing, and implement liquid aerobic fermentation and solid anaerobic fermentation for the seed solution succesively, then make the acquired solid fermentation products into yeast culture through cell disruption, drying and smashing. The yeast culture supplied has a high content of crude protein and stable, and can reach about 15%; and the contents of mannan, Beta- glucan are respectively higher than 1.0% and 3.5%. It is a feed ingredient with high nutritive value, and can improve feed palatability, animal food consumption, and animal intestinal health and growth performance; the invention adopts the invention adopt liquid- solid combined fermentation process, to develop cheap yeast culture with favorable effect and lower price, and the process is simple, easy to operate, and the whole production process conditions are easy to control, no need of high temperature treatment, which may favorably store the nutrient substance in the yeast culture.

The invention discloses an artificial intelligence aided teaching method in children programming education. The method mainly comprises the following steps: implementing the steps; S10, initializing asystem and generating AI auxiliary data AIData; S20, student behavior detection and marked data generation; S30, performing student behavior identification and AIInput data generation; S40, distributing AIInput data to each AI module and performing identification; and S50, performing data rationality judgment and completing auxiliary teaching; and S31, the guidance module decomposing the prompt data and the S51 learning interface control module performing instruction decomposition. According to the invention, students can carry out self-learning in an immersive environment, and the learning efficiency is improved. Through the auxiliary function of the AI teacher, the effect similar to online one-to-one live broadcast can be achieved by recording and broadcasting video courses. The problemof resource shortage of high-quality teachers is effectively relieved. The teaching radius of an offline teacher is effectively expanded. In combination with background big data learning, a prompt strategy which can be continuously learned and optimized is provided for the front-end AI module, an exclusive intelligent teaching assistant teacher is provided for each student, and then self-adaptiveteaching is achieved.

The invention discloses a steelmaking operation method adopting a steel scrap crushed material to replace a cooling agent. The method comprises the steps of crushing medium-sized steel scraps into thecrushed material with the bulk specific weight greater than 1.60 t/m3, and transporting the crushed material to an overhead bunker of a rotary furnace; calculating the heat required for melting 1 kgof crushed material through steel scrap melting, and determining the crushed material added quantity according to the spare amount of heat in the furnace: Q steel scrap=m steel scrap*{C solid(t melting-t initial)+latent heat of melting of steel scrap+C liquid.(t output-t melting)}, wherein the cooling effect of 1 kg of steel scraps at the tapping temperature of 1670 DEG C is as follows: Q steel scrap=1441.97 kJ/kg, and through each furnace of molten iron components and temperature input are calculated through a heat balance calculation model, and the space heat in the furnace is balanced by adding the crushed material into the overhead bunker