45results about How to "Wide source" patented technology

The invention provides a traffic information gathering device, a traffic information gathering method, a traffic information gathering and searching system and a traffic information gathering and searching method. The traffic information gathering and searching system for receiving traffic information from a user terminal and providing traffic information query service, comprises a map knowledge base generating section for generating information comprising attributes of roads and traffic points, attribute values corresponding to the attributes, and spatial relationship among the attribute values based on an electronic map so as to form a map knowledge base; a traffic information processing section for receiving traffic information from the user terminal, and decomposing the traffic information if it is determined that the traffic information can be decomposed according to the map knowledge base, so as to generate traffic information corresponding to attribute values of roads or traffic points; and a query information processing section for receiving a query request from the user terminal and analyzing it, decomposing the query request if it is determined that the query request can be composed according to the map knowledge base, and searching the traffic information database based on the decomposed query request.

A method and a system for producing calcium carbide, the method including mixing powdery carbon-containing raw material with powdery calcium-containing raw material, and directly heating the mixture by combusting a part of carbon-containing raw material in an oxygen-containing atmosphere to produce calcium carbide. The carbon-containing raw material can be coal, semi-coke or coke, the calcium-containing raw material can be calcium carbonate, calcium oxide, calcium hydroxide or carbide slag. The system includes a raw material preheating unit, such as a fluidized bed or an entrained flow bed, and a reaction unit such as an entrained flow bed. By combustion of the by-product CO produced during the production of calcium carbide or auxiliary fuel in the air to preheat the raw materials to 500-1500° C., the carbon consumption and the oxygen consumption for the calcium carbide production can be reduced, and thus process energy consumption is further reduced.

The present invention discloses a solid-state electrolyte and a preparation method and application thereof, the solid-state electrolyte comprises membrane material(s) and electrolyte salt(s), the organic phase of the membrane material(s) comprises a three-dimensionally interconnected interface and has a specific interfacial area greater than or equal to 1×10⁴ cm²/cm³, and the electrolyte salt(s) is dissolved in the organic phase. The preparation method of the solid-state electrolyte comprises: spraying the polymeric material solution onto the selected receiving surface using electrostatic spinning technique to form a three-dimensional structure, and optionally, at the same time, spraying the dispersion liquid of the inorganic particles onto the selected receiving surface using electrostatic spraying technique, then treating under pressure to give the membrane material(s), and then dropwise adding or spraying the electrolyte salt(s) solution into the membrane material(s) or immersing the thin film in the electrolyte salt(s) solution. The room-temperature conductivity of the solid-state electrolyte of the present disclosure is up to over 10⁻³ S/cm, does not depend on the addition of special polymers or fillers, and has the advantages of simple preparation, low cost, and wide source of raw materials, etc.

A process for preparing and separating a monodisperse polyethylene glycol, including: dissolving a starting material of polyethylene glycol into an organic solvent for reaction with a compound represented by general formula I under catalytic action of an alkaline substance, to prepare a mixture of derivatives of polyethylene glycol having different polarities; separating the mixture of derivatives of polyethylene glycol by means of silica gel column chromatography, to obtain a monodisperse derivative of polyethylene glycol; and hydrolyzing the derivative of polyethylene glycol to obtain a monodisperse polyethylene glycol. The starting material is industrially prepared polyethylene glycol with a wide source and low cost, which provides a guarantee for popularization and application of a monodisperse polyethylene glycol product.

The invention relates to a plate type ballastless track bed with a reverse pressure device and belongs to the technical field of rail transportation. The problems that for an existing ballastless track, a track plate and an under-plate filling layer are more likely to strip and bulge are solved. The plate type ballastless track bed includes a base, a track plate is arranged above the base, an under-plate filling layer is arranged between the track plate and the base, and a limiting structure is also arranged between the track plate and the base. The plate type ballastless track bed further includes the reverse pressure device, and the reverse pressure device includes a reverse pressure elastic component, a connecting piece and an anchoring piece; the anchoring piece is fixedly arranged on the base, the reverse pressure elastic component is arranged between the connecting piece and the anchoring piece, or one end of the reverse pressure elastic component acts on the track plate, the other end of the reverse pressure elastic component acts on the connecting piece, and the connecting piece is connected with the base through the anchoring piece. According to the plate type ballastless track bed with the reverse pressure device, the problem that the track plate is stripped off from the under-plate filling layer can be effectively avoided, the vibration reduction and noise reduction performance is good, the service life is long, and the plate type ballastless track bed with the reverse pressure device can be widely used in various high-speed railway ballastless track lines.

A method for preparing aluminum fluoride and aluminum oxide by decarburization and sodium removal of an aluminum electrolysis carbon residue is disclosed. The method includes: crushing the aluminum electrolysis carbon residue into fine particles not larger than 3 mm, adding decarburization agent into the carbon residue, mixing to obtain first mixture, adding the first mixture into a high-temperature furnace, conducting I-stage heating treatment in air atmosphere to obtain crude fluoride salt A; adding sodium removal agent into the crude fluoride salt A, mixing to obtain second mixture, adding the second mixture into high-temperature furnace, and conducting

II-stage heating treatment to obtain crude fluoride salt B; adding the crude fluoride salt B into stirring tank, adding industrial pure water, dissolving a sodium salt into water, and conducting solid-liquid separation to obtain precipitate C and sodium salt solution D; drying the precipitate C to obtain aluminum fluoride and aluminum oxide.

A class of quinazoline derivatives or pharmaceutically acceptable salts or solvates thereof with novel structures is provided; meanwhile, a pharmaceutical composition comprising a pharmaceutically effective amount of said quinazoline derivatives or pharmaceutically acceptable salts or solvates thereof, and pharmaceutically acceptable excipients or additives is also provided. By modifying and transforming the quinazoline and screening of the transformed compounds on the activity of tyrosine kinase inhibition, most of the compounds have been found to possess inhibitory activity against one or several of EGFR, VEGFR-2, c-erbB-2, c-erbB-4, c-met, tie-2, PDGFR, c-src, lck, Zap70 and fyn kinases. The present invention has the advantages of reasonable design, broad source of and easy access to the raw materials, simple and easy operation of the preparation methods, mild reaction conditions, high yield of the products and being beneficial for industrial-scale production.

A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.

Composition of traditional Chinese medicine for reducing blood lipid with components of the crude drug of artemisinins and the crude drug of ursolic acid, wherein the ratio of the crude drug of artesunate and the crude drug of ursolic acid is 1:25-25:1 by weight. The preparation method of such composition includes the following steps: the crude drug of artesunate and the crude drug of ursolic acid are mixed at the weight ratio mentioned above, comminuted, then screened through 120 mesh sieve to obtain the composition; or the crude drug of artesunate and the crude drug of ursolic acid are weighed at the weight ratio mentioned above, comminuted, screened through 120 mesh sieve separately, then mixed and screened for three times to obtain the composition. The composition of the present invention can be formulated into formulations for injection, oral administration with pharmaceutically acceptable carriers, and can be used for preparing medicaments for reducing blood lipid.

A manufacture method for fullerence/PEDOT:PSS mixed solution and a manufacture method for compound transparent conductive film having fullerence/PEDOT:PSS are provided in the present invention: making fullerence/PEDOT:PSS mixed solution to manufacture a transparent conductive film; sources of applicable materials are broad and prices thereof are cheap; the fullerence/PEDOT:PSS mixed solution can be further utilized to manufacture a compound transparent conductive film having fullerence/PEDOT:PSS on substrates or a variety of devices; the present invention discloses a manufacture method for a compound transparent conductive film having fullerence/PEDOT:PSS, and when manufacturing the compound transparent conductive film having fullerence/PEDOT:PSS via wet coating process which is with low cost and high efficiency comparing with manufacture of ITO film, and furthermore expensive PVD equipment can be waived, production cost can be reduced, manufacturing method can be simplified at the same time, production time is shorter and economic efficiency can be increased; the compound transparent conductive film having fullerence/PEDOT:PSS manufacturing in the present invention has high conductivity and high light transmittance to replace ITO films in the market.

The invention relates to the field of metallurgy, in particular to a method for comprehensively recovering iron, aluminum and sodium from Bayer process red mud. The method mainly comprises the following steps of proportionally mixing and briquetting the red mud, a specific mineralizing agent and a specific reducing agent, carrying out high-temperature reduction magnetization and salinization roasting, carrying out magnetic separation on a roasted product, and conducting leaching with a dilute alkali solution. According to the method, iron ore concentrates and sodium aluminate solutions are finally separated from the red mud, the iron ore concentrates can be used as a steelmaking raw material, and the sodium aluminate solutions can return to an aluminum oxide factory to further recover aluminum oxide; according to the method, a magnetic iron phase, a soluble aluminum phase and sodium phase and an insoluble silicon phase are high in conversion rate during roasting, the comprehensive recovery rate of the iron, the aluminum and the sodium is high, and titanium is enriched in recovered residues; and the method is a red mud comprehensive recovery method with popularization value.

The invention belongs to the technical field of foods, and particularly relates to a barley tender leaf composition and a beverage thereof. The barley tender leaf composition is prepared from the following raw materials in parts by weight of 2.0-5.0 parts of barley tender leaves, 0.010-0.040 part of citric acid, 0.010-0.040 part of sodium citrate, 0.010-0.025 part of tetrahydropiperine, 0.015-0.040 part of glycerine and 57.0-65.0 parts of pure water.

A light blocking composite film and preparation method and use thereof. The light blocking composite film comprises a middle non-woven fabric layer, and at least one light-reflective layer and at least one light-absorptive layer alternately arranged on each side of the non-woven fabric layer, wherein the light-reflective layer is made of a resin containing light-reflective particles, and the light-absorptive layer is made of a resin containing light-absorptive particles. The light blocking composite film of the present invention has the advantages of good blocking, not easy to curl, good durability, light-weight structure, beautiful color and the like.

The present invention discloses a method for preparing aldehydes or ketones via aerobic oxidation of alcohols with the copper salts and nitroxide radicals as catalysts. Both oxygen and air could be used as oxidants, after 4 to 48 hours of reaction in an organic solvent at room temperature, the alcohols are efficiently oxidized to the corresponding aldehydes or ketones. The present invention has the following advantages: easy to operate, refraining from using chlorides which are corrosive to equipment, readily available raw materials and reagents, mils reaction conditions, the broad substrate scope, good functional group tolerance, convenient purification, environmentally friendly and no pollution. Thus, the method is suitable for industrial production.