Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

49results about How to "Economic route" patented technology

Method for producing biodiesel by high-density fermentation of heterotrophic chlorella

InactiveCN101230364ALow raw material costOptimizing conditions for heterotrophic fermentationFatty acid esterificationUnicellular algaeBiodiesel feedstockBiodiesel
The invention discloses a method of producing bio-diesel by fermenting the heterotrophic chlorella in high density which belongs to the renewable biological energy field. The method uses the heterotrophic chlorella fermented in high density in the bio-reactor as a raw material, which screens the chlorella species having high growth rate and high oil content, directly inoculates into the bottle as the first-class germ to culture then transfers to the fermentation cylinder to undergo the second-glass high density fermentation; the reaction condition is then optimized, and the process is controlled; the culture containing the carbohydrate is dripped to provide the nutrition for the cell growth, therefore the heterotrophic chlorella cells cultured in high density with density of 108g / L and oil content of 61 percent are separated, collected and dried; the algae oil is extracted, and the bio-diesel is produced by transesterification reaction; the invention reduces the cost for the raw material of bio-diesel, and satisfies the demand of industrialized application of producing bio-diesel by heterotrophic chlorella cells, therefore the technique of the invention becomes an economical and effective way of making oils from bio-diesel materials.
Owner:TSINGHUA UNIV

Network printing system based on cloud computing and data storage method thereof

InactiveCN102710793ASolve storage problemsSolve the problem of slow computing powerTransmissionDistributed structureStructure of Management Information
The invention discloses a network printing system based on cloud computing. The network printing system based on the cloud computing comprises an infrastructure layer, a management layer and a network printing service layer, wherein the infrastructure layer is used for providing calculation, data storage and network communication resource for a high level; the management layer is built on the infrastructure layer and used for managing resource and task information; the network printing service layer is built on the management layer, is used for providing network printing service, and comprises a cloud service platform; the management layer comprises a cloud server with a distributed structure and a cloud memory; the infrastructure layer comprises a cloud memory with a distributed structure; and the cloud service platform is used for exchanging information with the cloud memory through the cloud server. According to the network printing system based on cloud computing, provided by the invention, the cloud computing and the cloud memory are added into the system, so that the processing and storage for a large number of documents and data are effectively achieved. Besides, the invention also provides a data storage method applied to the network printing system based on the cloud computing.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Hierarchical pore structure silicon-based negative electrode material for lithium battery and preparation method of hierarchical pore structure silicon-based negative electrode material

The invention relates to a hierarchical pore structure silicon-based negative electrode material for a lithium battery and a preparation method of the hierarchical pore structure silicon-based negative electrode material. The preparation method comprises the following steps: using a waste ultrafine silicon dioxide powder material generated in optical fiber production, firstly performing acid pickling and purification on the silicon dioxide powder, then using a water bath method to disperse the purified silicon dioxide powder into deionized water, adding a silane coupling agent, then adding an acid to the solution, further adding a surfactant, stirring, standing, crystallizing, filtering, drying and calcining the crystal at high temperature to form a modified carrier; adding the modified carrier material to an ethanol solution or deionized water, adding silica powder, stirring and dispersing, filtering and drying to obtain the silicon-based material with a mesoporous structure; then adding the purified silicon dioxide powder to a sodium hydroxide solution, performing high temperature autoclave reaction, adding the silicon-base material with the mesoporous structure and a carbon material to the obtained product, then adding an acid solution, washing, drying and calcining at high temperature, and naturally cooling to obtain the silicon-based negative electrode material with the hierarchical pore structure.
Owner:ZHONGTIAN TECH ADVANCED MATERIALS CO LTD

Archaeological excavation data based relic site early terrain three-dimensional reconstruction method

The invention discloses an archaeological excavation data based relic site early terrain three-dimensional reconstruction method. The method includes steps: (1) partitioning a relic site, determiningminimum region units, numbering regions, and taking each minimum region unit as a basic recording unit; (2) subjecting the relic site to classifying space calibration, correcting relic space information sorted on the basis of excavation data into region cells, linking with the region units according to space positions, and performing statistics of depth of relics in the cells away from the groundsurface; (3) taking the ground surface close to excavation time as a starting surface to calculate depth of underground relic units by subtracting height, recorded in excavation data, of relics in certain time away from the ground surface from elevation of the starting surface; (4) taking center points of the minimum region units as elevation recording points and taking elevation values of relic units as elevation values of the minimum region units, using dispersed minimum region unit elevations to deduce ancient surface configuration in relic time, establishing a relic site early terrain three-dimensional model, and visualizing. The archaeological excavation data based relic site early terrain three-dimensional reconstruction method is scientific, effective, direct and accurate, is not only helpful to archaeological excavation data mining and using but also has a great promoting and assisting effect on archaeological site environment and layout research, thereby being significant to archaeological excavation data standardization, digitization, visualization and deep mining.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI

Inferior heavy oil contact cracking-gasification combined treatment method

The invention discloses an inferior heavy oil contact cracking-gasification combined treatment method. The inferior heavy oil contact cracking-gasification combined treatment method comprises the following steps that 1, inferior heavy oil is fed into a contact cracking reactor, undergoes a contact cracking reaction with a contact agent to produce reaction oil gas and a carbon-containing contact agent; and after gas-solid separation, the reaction oil gas is fed into a follow-up separation system and the carbon-containing contact agent is fed into a gasifier; 2, in the gasifier, carbon of the carbon-containing contact agent obtained by the step 1 and a gasification agent undergo a binding reaction at a low gasification temperature to produce synthesis gas rich in CO and H2; simultaneously a CO2 capture material of the carbon-containing contact agent absorbs CO2 produced by the binding reaction; and the reacted carbon-containing contact agent enters into a regenerator; and 3, oxygen-containing gas is fed into the regenerator; residual carbon of the reacted carbon-containing contact agent and oxygen undergo a reaction at a high reaction temperature and burn completely; the CO2 capture material binding with CO2 releases CO2 so that the reacted carbon-containing contact agent recovers activity; and the regenerated carbon-containing contact agent returns back to the contact cracking reactor. Through the inferior heavy oil contact cracking-gasification combined treatment method, a light oil yield of a cracking reaction is improved; a gasification reaction temperature is reduced; and contact agent hydro-thermal inactivation and structure damage are avoided.
Owner:CHINA PETROLEUM & CHEM CORP +1

CFD-based heavy metal wastewater sulfuration precipitation reactor optimization method

The invention discloses a CFD-based heavy metal wastewater sulfuration precipitation reactor optimization method. The method comprises the following steps: establishing a fluid computational domain geometric model of a sulfuration precipitation reactor; according to the established geometric model, determining a control equation and defining a boundary condition and an initial value of the model according to an actual situation and a design thought; meshing the geometric model of the sulfuration precipitation reactor, and solving flow field and reaction substance concentration distribution and the like of the model by using multi-physical field coupling; by modifying related parameters, repeating the process, performing multiple numerical simulation calculations, and comparing and analyzing calculation results under different geometric structures and technological parameters to obtain the optimal reactor structure and technological parameters. According to the invention, simulation calculation can be carried out on the sulfuration precipitation process under different reactor structures and process parameters to obtain results such as inlet and outlet water concentrations of the reactor, flow field distribution characteristics in the reactor, concentration distribution of each substance and the like so as to evaluate the reactor performance under different conditions.
Owner:CENT SOUTH UNIV

Method for conducting vanadium alloying through vanadium slag in smelting process of vanadium-containing semisteel revolving furnace

The invention discloses a method for conducting vanadium alloying through vanadium slag in the smelting process of a vanadium-containing semisteel revolving furnace and belongs to the technical fieldof steelmaking. The method aims at achieving the technical effects that the steelmaking method for conducting vanadium alloying through the vanadium slag in the revolving furnace is provided, thus, avanadium-containing iron alloy is partly or wholly replaced with the vanadium slag low in price, and a low-cost high-strength steel is produced. The method comprises the following steps of crushing the vanadium slag into blocks; before steel tapping or in the steel tapping process of the revolving furnace and after a steel ladle is in place, adding the vanadium slag to the steel ladle according tothe revolving furnace final point element analysis result, and adding a deoxidizing agent and other alloy elements of the target steel in the steel tapping process; and when steel tapping is ended, controlling the slag thickness of the steel ladle, and adding lime and fluorite to the slag surface. According to the steel obtained through the method, the vanadium yield is stable; the technologicalprocess is short; cost is low; chemical constituents and performance indexes of the steel can completely meet relevant standard requirements; and a more economical route is provided for production ofthe vanadium-containing steel.
Owner:PANGANG GRP PANZHIHUA STEEL & VANADIUM

Artificial wetland capable of strengthening treatment effect of salt-containing wastewater by utilizing intertidal zone bottom mud and application

The invention relates to an artificial wetland capable of strengthening a treatment effect of salt-containing wastewater by utilizing intertidal zone bottom mud and application and belongs to the field of environmental protection. The artificial wetland comprises a water inlet pipeline, a wetland main body and a water outlet pipeline, wherein the water inlet pipeline is located above the wetland main body; the water outlet pipeline is located below the wetland main body; the wetland main body comprises wetland plants and a wetland bed body; the wetland main body is a subsurface flow type artificial wetland; wetland plants are planted on the wetland bed body; the wetland bed body comprises a first sand layer, an intertidal zone bottom mud layer and a filtering layer in sequence from top tobottom; the filtering layer comprises a second sand layer, a gravel layer and a rough sand layer in sequence from top to bottom. The artificial wetland can cope with changes of the environment and pollution caused by introduced species; compared with the effect of a traditional single microorganism, the artificial wetland has a better COD (Chemical Oxygen Demand) removing effect and abundant microorganism diversity and salt-resisting species groups are guarantees of effect optimization.
Owner:SHANDONG NORMAL UNIV

Network printing system based on cloud computing and data storage method thereof

InactiveCN102710793BSolve storage problemsSolve the problem of slow computing powerTransmissionDistributed structureStructure of Management Information
The invention discloses a network printing system based on cloud computing. The network printing system based on the cloud computing comprises an infrastructure layer, a management layer and a network printing service layer, wherein the infrastructure layer is used for providing calculation, data storage and network communication resource for a high level; the management layer is built on the infrastructure layer and used for managing resource and task information; the network printing service layer is built on the management layer, is used for providing network printing service, and comprises a cloud service platform; the management layer comprises a cloud server with a distributed structure and a cloud memory; the infrastructure layer comprises a cloud memory with a distributed structure; and the cloud service platform is used for exchanging information with the cloud memory through the cloud server. According to the network printing system based on cloud computing, provided by the invention, the cloud computing and the cloud memory are added into the system, so that the processing and storage for a large number of documents and data are effectively achieved. Besides, the invention also provides a data storage method applied to the network printing system based on the cloud computing.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Plant cold tolerance-associated protein LTT9, coding genes thereof and applications

The invention discloses a plant cold tolerance-associated protein, coding genes thereof and applications. The protein is characterized in that: (a) the protein is composed of an amino acid sequence shown as a sequence 1 in a sequence table; and (b) the protein is a at least one plant cold tolerance- associated protein, which is derived from the protein in (a), and of which the amino acid sequence of the sequence 1 in the sequence table is substituted and / or deleted and / or added by one or more amino acid residues. The protein provided by the invention is closely related to the plant cold tolerance, and a method for culturing cold resistant plants by the coding genes of the protein has characteristics of simple operation and short period, and is suitable for popularization and application. A survival rate of obtained LTT9 gene-transferring paddy rice after low temperature treatment can still reach 100%, and simultaneously, compared with the paddy rice without transgene, strain is higher, and fresh weight is heavier. The plant cold tolerance-associated protein, coding genes thereof and applications has important theoretical and practical significance on research of plant cold-tolerance molecular mechanism, seed selection of plant cold tolerance kinds and plant cold tolerance molecular breeding.
Owner:CHINA AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products