142results about How to "Price stability" patented technology

The invention discloses a method and device for paying the transaction cost in a blockchain network. The method and the system are capable of ensuring the stability of the token price while improving the transaction activity of the blockchain network. The method comprises the steps of transmitting a transaction request to the blockchain network by a transaction initiator; carrying out computation on the basis of transaction content in the transaction request by the blockchain network and determining a first number of first digit tokens as the transaction cost according to a protocol of the blockchain network; obtaining second number of tokens of the blockchain network on the basis of the first number of first digit tokens; and partially or completely distributing the second number of tokens of the blockchain network to blockchain nodes, participating in the transaction, in the blockchain network according to the execution condition of the transaction content.

The invention discloses a compound plant source agricultural bactericide and manufacturing method, which is characterized by the following: boiling traditional Chinese medicine with chenopodium ambrosioides, sickle wormwood, toosendanin and natural tanning; targeting plant fungus; displaying strong sterilizing specificity for cucumber, strawberry, tomato and potato.

The invention provides a biodegradable plastic with antibacterial property and a preparation method thereof. The biodegradable plastic with antibacterial property comprises biodegradable plastic matrix and antibacterial plant source dyes which are dispersed in the biodegradable plastic matrix, wherein the mass ratio of the antibacterial plant source dyes to the biodegradable plastic matrix is (0.01-10):100. The invention simply and fast extracts various antibacterial plant source dyes and prepares the biodegradable plastic which is the effective constituent of the various antibacterial plant source dyes, so that the plastic not only is biodegradable but also has good antibacterial property. The biodegradable plastic changes the crystallization property of the existing plastic since the dyes play a part in nucleating agent, is more easily degraded after the plastic product is abandoned, is environment-friendly, and has the degradation rate which is more than 90% after being putted in compost, active sludge and soil for 6 months.

The invention relates to a curing agent, namely, 4, 4 (1)-diphenylmethane diisocyanate prepolymer and a preparation method thereof. The method comprises the steps that molten 4, 4(1)-MDI and an organic solvent are added into a reaction vessel, and stirred uniformly, the temperature is raised to 65 DEG C, polyhydric alcohol dehydrated through evacuation is added, to react for 2 to 4 hours at 60 to 100 DEG C, and then an MDI modifier is produced; when being stirred, the mixed liquor of trimethylol propane and the organic solvent is titrated into the reaction vessel for 1 to 4 hour(s), the titration temperature is 60 to 100 DEG C, heat preservation and reaction are performed for 1 to 3 hour(s), then the temperature is raised to 90 to 100 DEG C and the heat preservation and the reaction are performed again for 1 to 4 hour(s), the temperature is reduced, and the organic solvent is added for dilution to appropriate viscosity. The curing agent has the advantages that the application scope is broad, the molecular structure of the polyhydric alcohol can be adjusted according to the requirements of users to produce the prepolymer of polyurethane coating, adhesive, and the curing agent, the storage stability is good, the curing speed is quick, the toxicity is low, the price is low, products with high solid content can be obtained, etc.

The invention provides a preparation method of a lithium iron phosphate / expanded graphite composite electrode material and a preparation method of a lithium ion capacitor made of the material, and relates to a preparation method of a lithium ion capacitor anode material and a preparation method of a lithium ion capacitor. The preparation methods overcome defects that the safety performance is poor, the cost and environmental pollution are high, lithium iron phosphate cannot be composited with graphite or graphene effectively to utilize excellent electrochemical properties of the graphite or the graphene. The preparation method of the composite electrode material comprises the steps of dissolving a phosphorus source, an iron source and a lithium source in H2O to prepare a lithium iron phosphate precursor, expanding the expandable graphite in a muffle furnace, preparing a lithium iron phosphate / expanded graphite composite precursor through mechanical mixing and ultrasonic treatment of the lithium iron phosphate precursor and the expandable graphite, and carbonizing to obtain the composite electrode material. The preparation method of the lithium ion capacitor comprises the steps of preparing the composite electrode material into an electrode plate to serve as an anode, mixing activated carbon and the graphite to prepare an electrode plate to serve as a cathode, sandwiching a polypropylene membrane between the anode and the cathode, and injecting an inorganic lithium salt aqueous solution as an electrolyte. An in-situ sol-gel composite method increases the utilization ratio of an active substance of the lithium iron phosphate, reduces the internal resistance of the material, and is simple to operate.

The invention discloses epoxy polysiloxane graphene heavy-duty anticorrosion coating, comprising component A and component B according to a weight ratio of 100:17-24; the component A includes: epoxy resin, epoxy polysiloxane and graphene; the component B includes: cashew nut shell oil-modified amine curing agent. A preparation method of this coating includes: (1), hydrogenated bisphenol A epoxy resin and epoxy polysiloxane into a reactor introduced with nitrogen, heating to 60-80 DEG C, and adding dibutyltin dilaurate; heating slowly to 125-135 DEG C, and reacting for 5-6 h; cooling to 55-60 DEG C, adding silane coupling agent, and continuing to react for 2 h; extracting with petroleum ether, and removing a solvent at 40 DEG C at low vacuum pressure of 0.08 MPa; (2), mixing the epoxy resin, the epoxy polysiloxane of step (1) and graphene, heating for dissolving, adding other materials, and mixing; the coating prepared herein has excellent properties such as aging resistance, water resistance, hardness, flexibility, and salt water resistance.

The invention discloses forage for laying hen and application thereof in laying hen production. The forage is prepared by following weight of components: 50-53 parts of corn, 12-18 parts of middle protein soybean meal, 4-6 parts of cotton meal, 4-6 parts of corn DDGS, 9-10 parts of stone powder, 0.8-1.2 parts of meat bone meal, 11-15 parts of biological protein forage and 0.8-1.2 parts of 1% laying hen premix. The biological protein forage provided by the present invention is light brown forage raw material with high quality, high energy and high protein, and has concentrated fragrance and strong palatability, so animal likes the forage. Content of thalline protein, peptide and free amino acid of the forage is high, and nutrient composition absorptivity is high. Simultaneously the raw material contains a large amount of beneficial microorganism and unknown growth factor, thereby improving micro-ecological environment in intestinal tract, increasing resistivity and disease resistance of animal, and reducing content of antibiotic medicament in the forage.

The invention belongs to the technical field of medicines, and particularly relates to a preparation method of N(2)-L-alanyl-L-glutamine. The preparation method of the N(2)-L-alanyl-L-glutamine comprises the following steps of (1) preparing L-phthaloyl-alanyl chloride; (2) preparing phthaloyl-L-alanyl-L-glutamic acid; (3) preparing phthaloyl-L-alanyl-L-glutamic acid anhydride; (4) preparing phthaloyl-L-alanyl-L-glutamine; (5) preparing an N(2)-L-alanyl-L-glutamine crude product; (6) preparing an N(2)-L-alanyl-L-glutamine refined product. The product obtained through the final deprotection process of the preparation method as a pilot plant test or a production scale process route is higher in purity; the liquid-phase purity of the product is higher than 99.9% through primary purification, and the product is low in impurity content.

The invention provides an inner wall coating composition with multiple environmental improvement functions, which mainly comprises the following components in part by weight: 35.0-40.0 parts of film-forming substance, 0.4-0.6 part of freeze-thawing stabilizer, 35.0-40.0 parts of color filler, 5-7 parts of coating auxiliary agent, 1-15 parts of bamboo charcoal and acceptable amount of water, wherein the film-forming substance is acrylic acid copolymer capable of stably complexing with bamboo charcoal particles; the freeze-thawing stabilizer is long-chain epoxyethane (EO) block fatty alcohol polyoxyethylene ether; and based on the total weight of the composition, the total content of volatile organic compounds (VOC) in the composition is not higher than 0.01wt%.

The invention discloses a polycarboxylic acid-series water reducing agent with ultrahigh water absorbing capacity and a preparation method and a use method thereof, belonging to the technical field of building materials. The water reducing agent consists of the following raw materials in parts by weight: 100 parts of unsaturated polyether (I), 10-18 parts of acrylic acid, 1-3 parts of acrylamide,1.25-9.25 parts of aconitic acid, 0.45-2.25 parts of hydrogen peroxide, 0.15-0.75 part of L-ascorbic acid, 0.12-0.48 part of mercaptoacetic acid, 0.12-0.48 part of mercaptopropionic acid, 6-10 parts of sodium hydrate and 125-195 parts of water. The invention provides a polycarboxylic acid-series water reducing agent having the advantages of simple process, convenience for operating, low raw material cost and ultrahigh water absorbing capacity, a preparation method and a use method. Self-made unsaturated polyether (I) DD-405 is used for replacing methyl allyl polyethenoxy ether, so that the raw material supply market of the polycarboxylic acid-series water reducing agent is expanded, raw material cost is reduced, and raw material price is stabilized. The polycarboxylic acid-series water reducing agent is suitable for construction projects of high-rise buildings, large-span bridges, marine drilling platforms, tunnels, dams and airports.

The invention relates to a process of realizing cultivating annual black fungus through punching bags by using an intelligent sunlight greenhouse. Fungus bags suspended in the sunlight greenhouse, according to the temperature and humidity in the sunlight greenhouse (1), can be automatically or manually sprayed and humidified, automatically or manually ventilated, and automatically or manually heated, so as to realize cultivating annual black fungus through punching bags by using the intelligent sunlight greenhouse in such ways of saving the land and being unaffected by the weather. The black funguses can be cultivated by the process so that the land saving can be realized and the black funguses are not unaffected by the weather, the growing trend can be controlled, the four-season cultivation can be realized, and the yield and benefit can be improved; furthermore, the small-scale distributed black fungus plantation can be changed into an intensive, specialized, standardized, mechanical and standard factory type production way, so that the high quality, high efficiency and high yield of the black funguses can be realized, the technological content of the black fungus cultivation can be improved, the production cost can be reduced, and the targets of increasing yield, synergia, increase income and stable earnings of the annual production can be realized.

The invention belongs to the technical field of artificial breeding, and specifically relates to a simple breeding method for edible locusts. The simple breeding method for the edible locusts comprises the following steps: selecting and clearing up a site; constructing a locust breeding shed; performing locust larval-period management; performing locust mature-period management; performing sunstroke prevention and thermal insulation on the locusts. The simple breeding method for the edible locusts is simple in technology, convenient in management, easy in popularization and stable in locust finished product price which is always kept at about 20yuan / jin, thereby being a good project for farmers to start a business and increase the income by use of spare time.

The invention belongs to a preparation method of hydrogen and specifically relates to a method and a device for preparing the hydrogen by electrolyzing ammonia. Ammonia is taken as a raw material and foamed nickel on which different noble metals are deposited is taken as an anode and a cathode for an electrolytic hydrogen production reaction; specifically, the cathode and the anode are simultaneously inserted into an ammonia-containing electrolyte, and the external voltage of 0.6-0.8V is applied between the cathode and the anode so that ammonia has an oxidizing reaction to generate nitrogen and water has a reduction reaction to generate hydrogen. The temperature of the electrolytic reaction is controlled between 50 and 60 DEG C. The method for preparing hydrogen by electrolyzing ammonia has the advantages that the electrolytic voltage can be controlled below 0.8V and hydrogen can be prepared economically and effectively.

The invention discloses a management method for the commodity price on the electronic commerce transaction platform, and the price control information arranged by the commodity provider; when the commodity price is changed by the provider, the method also comprises: an electronic commerce transaction platform is used for judging whether the price control information is arranged; the current processing flow is ended if the control information is not arranged; and the corresponding commodity price is adjusted by the electronic commerce transaction platform according to the price after the change of the provider and the price control information if the control information is arranged. The invention also discloses a management system for the commodity price on the electronic commerce transaction platform; the invention has the advantage of ensuring relative stability of the commodity price on the electronic commerce transaction platform during the transaction, safety and reliability of the transaction to the commodity provider.

The invention relates to a method for preparing cellulose nitrate for an explosive from wood pulp, in particular relates to a preparation method of cellulose nitrate for an explosive and belongs to the technical field of cellulose preparation. The method is characterized by comprising the following steps: adding 20-30 parts by weight of wood pulp in 500 parts by weight of mixed acid, carrying outmiddle-low temperature nitration reaction and then washing; and then successively carrying out boil washing, shredding and refine washing so as to obtain the cellulose nitrate for the explosive. In the preparation method of the cellulose nitrate, the wood pulp is used as a raw material, which is not a precedent in the field of military cellulose nitrate, thereby broadening the use range of the raw material in nitrated cellulose production, and simultaneously, the wood pulp is cheaper than cotton linter and can be used as the raw material of energy-containing nitrated cotton for production, thereby greatly solving the cost problem of the raw material; and at the same time, the environmental protection pressure problem brought by a large amount of cotton dust, black liquid and acidic wastewater which are generated in the processes of cotton opening, boiling, bleaching and drying refined cotton when a nitrated cotton product is prepared by utilizing the cotton linter as the raw material is solved.

The invention discloses biomass-based flame-retardant polyurethane soft sponge foams and a preparation method thereof. The foams are characterized by being environmental-friendly renewable biomass-based flame-retardant polyurethane soft sponge foams which are prepared by mixing flame-retardant modified epoxy soybean oil polyhydric alcohols (a), and polymer polyhydric alcohols (b) as main raw materials, mixing with a isocyanate component (c), foaming and polymerizing under the action of a reactive or low-odor catalyst, a physical and / or chemical foaming agent, a foam stabilizer or a flame retardant. As the biomass-based flame-retardant polyurethane soft sponge foams disclosed by the invention are produced from renewable biomass raw materials, the dependency of foam synthetic products on petroleum and coal resources is reduced, the product price is stabilized, and the purposes of environment protection and low carbon are also achieved.

The invention provides a preservative for edible mushrooms. Counted by total mass of the edible mushrooms, the preservative comprises the following raw material components in percentage by mass: 1.0 to 3.0 percent of edible salt, 0.005 to 0.035 percent of potassium sorbate, 0.0010 to 0.0075 percent of sodium dehydroacetate and 0.02 to 0.12 percent of lactobacillus plantarum. The preservative disclosed by the invention is unique in formula is combined with a method for preserving the edible mushrooms for use. The method for preserving the edible mushrooms has the following beneficial effect that the salt content of the edible mushrooms obtained by adopting the method for preserving the edible mushrooms is lower than 3 percent; the color-protecting and brittleness-keeping effects of the edible mushrooms like the effects obtained by adding sulfur products are realized; the brittleness and the nutrient value of the edible mushrooms are not influenced; half-dry edible mushrooms have long guarantee period and can be preserved for 12 months at normal temperature.

The invention discloses a multifunctional liquid jade coating, which comprises: 10-15 parts of a hydroxyethyl cellulose aqueous solution; 24-36 parts of an adhesive; 56-65 parts of natural color jade powder; 3-5 parts of a borosilicate inorganic glass flake; 3-5 parts of an inorganic flame retardant; 3-5 parts of talcum powder; 0.5 part of natural color mica or composite mica titanium; 0.15 part of an antimildew agent; 0.15 part of an antioxidant; and 0.2 part of a functional aid. Being non-toxic, odorless, nonflammable, and convenient for storage and transportation, the multifunctional liquid jade coating provided in the invention is a multifunctional high-quality coating with acid and alkali resistance, high temperature resistance and other properties, and has the characteristics of heat insulation, sound insulation, waterproofness, corrosion resistance, weathering resistance, flexibility and cracking resistance, strong adhesion and shedding resistance, green and environmental protection, and wide using range. The invention also discloses a preparation method of the liquid jade coating, and the method is simple and is easy to implement.

The invention discloses a composite adhesive for timber, a formaldehyde-free shaving board and a manufacturing method of the formaldehyde-free shaving board. The composite adhesive for the timber is characterized by comprising, by weight, 4-7 parts of a biological base formaldehyde-free adhesive and 1-4 parts of aromatic isocyanates with absolute alcohol dry as the standard. The shaving board produced through the composite adhesive for the timber does not contain formaldehyde and is good in water resistance, high in mechanical property and good in oil paint adhesiveness; the main adhesive, namely the biological base adhesive, is moderate in cost and relatively stable in price; the composite adhesive is high in heat curing efficiency; and industrialization can be achieved through slight improvement on an existing dry-method shaving board production line, the problem that at present, the production cost of the formaldehyde-free shaving board stays at a high level can be effectively solved, and market prospect is good.

The invention discloses coarse food grain premixed powder and a preparation method thereof. The coarse food grain premixed powder comprises coarse food grain raw materials and auxiliary materials, wherein the coarse food grain raw materials comprise 20-40 parts of corns, 10-20 parts of millets, 10-20 parts of sorghums, 20-40 parts of oats, 10-20 parts of buckwheat, 10-20 parts of soybeans, 10-20 parts of mung beans, 5-10 parts of jumble beads and 5-10 parts of green soya beans; the auxiliary materials comprise 1-3 parts of glycerol monocaprylate, 1-3 parts of sodium dehydroacetate, 1-3 parts of sucrose ester, 1-3 parts of sodium tripolyphosphate, 2-6 parts of sodium dihydrogen phosphate and 2-6 parts of sodium hexametaphosphate. According to the coarse food grain premixed powder, the quality of products of downstream production enterprises is stable, the loss of the raw materials is less, the price is relatively stable, and the market blank is filled, so as to be good for the development of small-size food processing factories.

Disclosed are a combined packing box for customers to purchase conveniently and a using method thereof. By being combined with application of existing rules of post codes, advanced refrigerating and thermal preserving technology, network information spreading technology, self-service charging terminal technology, intelligent lock locking and unlocking technology and remote control technology, the combined packing box with retailing transaction functions including placing an order, storing, valuating, paying and the like is manufactured in an optimized and combined manner and a field mounting application method convenient for the customers is provided. By the combined packing box, contradiction of supply and demand between production and consumption can be solved to the greatest extent, credit balance of customers and merchants is achieved, price stability and circular economy development are benefited, and the combined packing box has significance for sustainable development and civilization progress of the entire society.

The invention discloses a low-cost method for preparing high-purity linaclotide. According to the technical scheme, the low-cost method comprises the following steps: 1) synthesizing linear linaclotide by utilizing resin carriers including CTC resin or Wang resin and the like through a Fmoc method or obtaining the linear linaclotide by utilizing a segment method or a liquid-phase synthesis method;2) obtaining a linaclotide crude product which is accurately matched by adopting a one-step oxidization method; 3) obtaining the high-purity linaclotide through purifying by adopting high performanceliquid chromatography. The method disclosed by the invention is started from the aspects including an oxidization system and the like, and a method for accurately matching a linaclotide disulfide bond is improved; the method is simple and stable in technology and low in cost, and the linaclotide crude product can be obtained through one-step cyclization; the purity of a purified product can be greater than 99 percent and the content of a single impurity can be controlled to be 0.1 percent or lower. Compared with the prior art, the method has better economic benefits and application prospect.

The invention discloses a carbon-sulphur composite electrode based on carbon nano tube arrays and a preparation method of the carbon-sulphur composite electrode. The carbon-sulphur composite electrode is formed by compounding the carbon nano tube arrays and a conductive substrate with a sulphur-containing active substance. The preparation method of the carbon-sulphur composite electrode comprises the steps that directionally arranged carbon nano tube arrays are vertically grown on the surface of the conductive substrate and the sulphur-containing active substance is infiltrated into the structure of the carbon nano tube arrays by virtue of heat treatment. The preparation method of the carbon-sulphur composite electrode is simple in operation and low in cost, a conductive agent and a binding agent are not additionally added in the prepared carbon-sulphur composite electrode, the active substance of the carbon-sulphur composite electrode is contacted with an electric conductor in nano scale, contact resistance is low, rate is high, and energy density is high. The invention also discloses a secondary aluminium battery taking the carbon-sulphur composite electrode as a positive electrode.

The invention relates to a method for preparing AlN ceramic powder through a carbothermal reduction nitridation method, and belongs to the field of ceramic material preparation. The method is carriedout in an atmosphere synthesis device by taking aluminum oxide powder, carbon powder and nitrogen gas as raw materials, in the preparation process, nitrogen gas is continuously or intermittently introduced into the atmosphere synthesis device, and the gas pressure in the atmosphere synthesis device is controlled to generate pressure difference by adjusting the gas charging rate and the gas discharging rate, so that the atmosphere synthesis device has the pulse type characteristics of slow charging and quick discharging and is dynamically changed in real time in a periodic circulation manner, and the circulation period is 0.1-20 minutes. According to the invention, under the condition of no additive, pulse-type periodically-circulating real-time-changing air pressure is formed by utilizingan air pressure regulation and control technology, so that exchange of gas inside and outside a powder layer is promoted, pure-phase AlN can still be obtained under the condition of increasing the thickness of the powder layer, and the quality of AlN powder is guaranteed.

The invention relates to an intelligent scanning demagnetizing device. The intelligent scanning demagnetizing device is characterized by comprising a tablet personal computer credit card POS machine all-in-one machine, a scanning demagnetizing all-in-one machine, a bill printer, a shopping information display screen, a security door control system, a fitness equipment low-voltage power source interface, a mobile phone charging interface and a storage battery. The intelligent scanning demagnetizing device solves the social problem that time is wasted when people wait in a queue at an exit of a supermarket or a shopping mall, and the operation cost is lowered; the number of charging ports is decreased, salaries of cashiers are reduced, the problems of damage and stealing are solved, meanwhile, commodity prices of the supermarket are stabilized, the function that a consumer can go shopping while surfing the Internet is added, the consumer can achieve self-service shopping only by pushing a shopping cart with the intelligent scanning demagnetizing device, only one minute is enough from payment to the exit after shopping is completed, and the intelligent scanning demagnetizing device has the key role in transforming and updating supermarkets and large shopping malls in the future and improving the service quality, and improves happy lives of people.

The invention discloses a method for producing and harvesting porcine reproductive and respiratory syndrome viruses (PRRSV), which comprises the following steps: culturing Marc-145 cells in a spinner bottle; after the cells grow into a monolayer, removing a growth-promoting media; inoculating the PRRSV according to 0.01 infection multiplicity (MOI: multiplicity of infection); absorbing for 1 hour at a temperature of 37 DEG C; adding DMEM serving as a maintenance media to carry out expanding propagation of viruses; arranging the spinner bottle on a rotary machine of a 37 DEG C thermostatic chamber to carry out rotation culture for 72 to 84 hours; and when 75 to 80 percent of cytopathic effect occurs, directly collecting the supernatant to obtain the PRRSV. The invention reduces allergen in the rough antigens and improves the vaccine quality. And the time that the Marc-145 cells have CPE is consilient with that before the process is improved, but the virus harvesting time is shortened.

The invention discloses a method for preparing 2-benzyl pyridine compounds, which comprises the following step of performing a decarboxylation coupling reaction of a decarboxylation coupling reagent and an electrophilic substrate in an organic solvent in the presence of a palladium catalyst and phosphine ligand to obtain 2-benzyl pyridine compounds. Through the method, the aim of synthesizing an important intermediate, which is functionalized 2-benzyl pyridine, and derivatives thereof in the organic synthesis or the synthesis of medicinal intermediates is realized, and the method provides an effective solution for the synthesis of the compounds in the organic synthetic chemistry and the synthesis of the medicinal intermediates. The method has the advantages of avoidance of dependency on alkali, low cost, safety, stability, low toxicity, convenient operation, a few by-products, atomic economy higher than that of the prior art, green chemistry properties, little catalytic amount, high catalytic efficiency, easy separation and high conversion rate and yield, and has industrial and synthetic values.

The friction material without asbestos consists of modified phenolic resin, iron ore powder, re-burnt magnesite, alumina, clinostrengite powder, silica, barytine, wollastonite, carbon black, calcium carbonate, graphite, tire powder, zinc stearate, plant fiber, sepiolite and steel fiber. Using plant fiber and sepiolite to replace asbestos and glass fiber separately can eliminate the harm of asbestos and glass fiber to human health. The friction material has the features of high tensile strength, high toughness, heat resistance, and stable heat decay performance, and may be used in friction wafer for common vehicle and heavy truck.