104results about How to "Large amount of resources" patented technology

The invention advances the technology of virtual data warehousing: by allowing data to be organized in any of a number of virtual structures without the need for replication; by allowing the data to be accessed through the virtual structure at speeds in excess of those for conventional methods; by allowing data to be searched at significantly higher speeds, using a new indexing technology that enables tables to be indexed by data external to themselves, thus removing the need for complex joins; and by providing a workable security model for compartmenting access to both the data and the indices used to support searching.

The invention discloses a compound plant source disinfectant and a method for preparing the disinfectant. The disinfectant is made by the materials of cassia oil, sweetflag, sophora flavescens and eucalyptus oil of traditional Chinese medicines. The main effective components of the disinfectant are the cassia oil, the Beta-asarol and the matrine. After being extracted, the materials are matched with an accessory ingredient to be made into various missible oil, emulsion in water and other various preparations. The disinfectant has broad spectrum and excellent restraining effects on various plant pathogenicbacterias. The plant source disinfectant of the invention has the advantages of high efficiency, low mammalian toxicity; the harmful bacterias are difficult to generate drug fastness on the disinfectant. A field test shows that the control effect on the gen-seng leaf spot is better than that of 70 percent of mancozeb. The invention can be taken as an ideal and eco-friendly pesticide.

The invention provides a novel recycling comprehensive utilization technology for agricultural and forestry waste, relating to the technical field of recycling high-efficiency comprehensive utilization of the agricultural and forestry waste. The novel recycling comprehensive utilization technology for agricultural and forestry waste comprises the steps that the collected agricultural and forestry waste or other biomass raw materials are pretreated, and then are sent into a primary-separation device through conveying equipment, hemicelluloses in the agricultural and forestry waste raw materials are separated out and are subjected to anaerobic fermentation so as to generate biogas or prepare a furfural product, and solid matters are subjected to secondary separation; liquid separated out and rich in the hemicelluloses is precipitated, pre-acidified, adjusted and the like and then enters an anaerobic digestion system so as to generate biogas. The novel recycling comprehensive utilization technology for agricultural and forestry waste has the advantages that the used raw materials are agricultural and forestry waste, the quantity of raw material sources is large, the raw materials are wide in distribution and low in cost, and the agricultural and forestry waste resource is comprehensively utilized at high efficiency. The novel recycling comprehensive utilization technology can be used for preparing series of products such as biochemical fibers, celluloses, biogas electric power and biomass briquette forming fuels, is high in resource yield and has remarkable environmental protection benefit.

The invention provides a method for preparing absolute ethyl alcohol by furfural residues. A furfural residue cellulose raw material is adopted, lignin is separated, and then the absolute ethyl alcohol is obtained through synchronous diastatic fermentation and pervaporation coupling separation of alcohol, then distillation, pervaporation dehydration and rectification. The method has the advantages that the method organically combines the prior mature rectification technology with a modern advanced separation technology to improve the production efficiency when high fiber raw materials are used to prepare the absolute ethyl alcohol.

The invention relates to a natural preservative regarding lotus leaves as a raw material and a preparation method thereof. The natural preservative is prepared by mixing the raw materials in parts by weight: 4-8 parts of a lotus leaf extract, 1-3 parts of citric acid and 1-3 parts of soluble starch, wherein the lotus leaf extract is a powder prepared by drying a lotus leaf extracting solution. By regarding the lotus leaves as the raw material, the natural preservative disclosed by the invention has the advantages of wide resources, low cost, good antibacterial effect and high food safety, has relatively strong antibacterial effect on a plurality of invasive organisms in food, especially has a significant antibacterial effect on escherichia coli and staphylococcus aureus, and has the advantages of being simple and easy in preparation process as well as low in production cost, so that the natural preservative is widely used for food anticorrosion.

Provided is a process for preparing a plant fiber composite wall plate, belonging to wall material field. The invention resolves the shortages that the raw material of the existing architectural wall material is large in consumption, the manufacture cost is high and the distribution of the raw material is non-uniform. The process steps of the invention are that crop straw is cleaned and cut into pieces and is ground by a fiber re-chipper, and then is dried after dust and big lump material are screened. The prepared raw material is sent into a glue blend machine and is added with adhesive agent of 10-16%. After being uniformly stirred, the raw material and the added adhesive agent are taken out, added with fire retarding agent and paved, and then are cut in standard size after being pre-pressed, hot-press-molded and cooled. The plate in standard size is combined with polystyrene plates via different layers and thicknesses, the surfaces thereof are stuck with melamine fireproof plates, and then the plant fiber composite wall plate is formed via the combination. The product obtained by the process has the advantages of low density, light weight, perfect insulation, simple technology, large raw material source, low manufacture cost, waste utilization and environment protection. The invention can be used to produce building separating walls, framed wood structural buildings, mobile movable dwellings, and buildings in tourist spots and the like.

A traffic line recognition device includes: a traffic line region candidate extraction section that extracts a traffic line candidate, as a traffic line candidate, from a road image obtained by a TV camera installed on a vehicle; a two dimension/three dimension transform section that transforms two dimensional image coordinates of a pixel contained in the traffic line region candidate into three dimensional coordinates; a histogram production section that accumulates and projects the three dimensional coordinates onto a coordinate system in a direction crossing a road and produces a histogram in the direction crossing the road; and a traffic line judgement unit determines a traffic line based on that histogram.

The invention provides a method for constructing a manually controlled submarine algae field. The method comprises the steps of selection and treatment of seaweed substrates, culture of seedlings of seaweeds, sowing and the like, wherein the seaweed substrates are breeding screens formed by weaving reddish brown ropes; the step of culture of seedlings of seaweeds comprises the substeps of collection of seedlings of seaweeds and management of culture of seedlings; after the water density of the collected spores during release in the substep of collection of seedlings of seaweeds reaches 10-15 zoospores in the field of 100-times microscope, the seaweed substrates are put in the seawater to adhere; and the adhesion density is 20-30 embryo spores in the field of 100-times microscope. The method has the following advantages and beneficial effects: the variety, density, place and sowing time of the submarine algae field achieve manual control; the fixed substances of the algae, such as C, N, P and the like, are taken from the sea to the land by harvesting the seaweed, so the effect on solving the ecological problems is longer; the cost is far lower than that of the artificial reefs; thenatural submarine geomorphology is not damaged; and the submarine algae field can be formed in a shorter time, thus rapidly increasing the resource quantity.

A method of image-to-document conversion based on optical character recognition (OCR) includes obtaining an image to be converted into a target document, and performing layout segmentation on the image according to image content of the image, to obtain n image layouts, each of the n image layouts corresponding to a content type, and n being a positive integer. The method also includes, for each of the n image layouts, processing image content in the respective image layout according to the content type corresponding to the respective image layout, to obtain converted content corresponding to the respective image layout. The method further includes adding the converted content corresponding to the n image layouts to an electronic document, to obtain the target document.

The magnesia clay antibiotic material preparing process includes the following steps: heat activating magnesia clay through calcining at 100-850deg.c for 10-120 min to prepare the antibiotic carrier; preparing antiseptic solution in 0.1-1.0 mol/L concentration; compounding active magnesia clay slurry with solid content of 5-30wt%, adding antiseptic solution in 3-10 wt% of active magnesia clay and reaction at 10-95deg.c for 1-10 hr for complete reaction between the antiseptic ion and magnesia clay and adsorption of antiseptic ion to the porous magnesia clay structure; and washing, dewatering, stoving and grinding. The magnesia clay antibiotic material is used mainly for household appliance, chemical building material, telecomm product, food package, etc.

The invention provides a dressing technology for recycling ultra-low-level gold ore. The dressing technology for recycling the ultra-low-level gold ore is composed of an ore washing and screening system, a slime processing system, a carbon leaching system and a dump leaching system, wherein the technological raw ore is directly screened and washed, the ore sand is subjected to dump leaching, the slime is subjected to the stage classification, stage reelecting recycling particle minding and the carbon leaching, gold concentrate, dump leaching gold loaded carbon and carbon leaching gold loaded carbon of a first segment reelecting returning path and a second segment reelecting returning path are obtained, and the reelecting gold concentrate and the gold loaded carbon are sent to a gold melting plant for treatment to obtain gold ingot. According to the dressing technology, the oxidized gold ore with the gold content of the raw ore being under 0.4g/t and the mud content being above 25% is adopted, the gold dressing recycling rate reaches above 75%, the ultra-low-level gold ore resource is fully used, the gold ore resource is enlarged, the water returning use is strengthened in all steps, the corresponding work is returned according to the water returning quality, water is saved, and the ore per unit consumes under 0.23m3/t of water.

The invention belongs to the technical field of uranium mines, and particularly discloses a method for quickly judging whether a black rock series has uranium-free multi-metal mining value or not. Themethod comprises the steps of: step 1, acquiring a black rock series sample acquisition; step 2, measuring P2O5 content, V, Ni, Cu and Zn element content and the U-Pb isotopic age of black rock series samples acquired in the step 1; 3, judging the phosphorus content of the black rock series sample; 4, judging mineralization elements of the black rock series sample; step 5, and judging the whole rock age of the black rock series sample so as to judge whether the black rock series in the sample collection area has a mining value or not. By means of the method, whether the black rock series of the target area or not can be rapidly judged, so that the prospecting efficiency in the black rock series is improved, and time and capital cost are saved.

The invention discloses a multilayer coal seam gasification furnace and coal seam gasification method; the coal seam gasification furnace comprises the following structures: a gas-injection well, and each coal seam at least comprises one branch well connected with the gas-injection well; a gas outlet well; a gasification path; a blocking device; a guide device; a gas injection device. The blocking device is placed to a branch window of the branch well and used for blocking the branch well; the guide device is placed in the branch window of the branch well, and used for guiding the gas injection device into the branch well; the blocking device can separate and control different branch wells; the gas injection device can control a gasification process of different coal seam zones through different gas injection points of different branch wells under the guide device effect, thus realizing gasifying agent fixed point and quantification injection, controlling the gasification process of the multilayer coal seam, and preventing mutual interferences between the coal seams in the coal seam gasification process; the multilayer coal seam gasification furnace and coal seam gasification method are stable in a gas production process, improve coal seam recovery rate, reduce drilling well quantity, and reduce gasification exploitation cost.

The invention discloses a coal mine pressure bump predicting and forewarning method. The coal mine pressure bump predicting and forewarning method comprises the following steps that a micro shock monitoring system is established based on the outcome of the working face impact risk evaluation; whether periodicity of total energy peakof daily micro shock events exists is determined; abnormal peak days of daily micro shock events are divided; periodic interval of the total energy peak of the daily micro shock events is divided; peak periodic intervalis adjusted; total energy mean value of adjusted peak periodic interval is recalculated; peak day spacing range is determined; pressure bump forewarning is conducted; and forewarning index is continuously optimized until target working face stopping is completed. The method is accurate in peak periodic interval predicting, and based on combination with stress monitoring data, the method is an effective means for pressure bump forewarning; andcompared with a current common method of individual micro shock event forewarning, the method is more objective and accurate.

The invention discloses a method for preparing a biomass conductive charcoal electromagnetic shielding material. The method comprises the following steps of: firstly, using a nickel-based or iron-based compound as a main catalyst and using a calcium-based compound as a cocatalyst to prepare a catalyst, then low-temperature carbonizing biomass conductive charcoal under 480-520 DEG C, cooling and taking out the catalyst and the biomass conductive charcoal, fully mixing the catalyst and the biomass conductive charcoal, high-temperature carbonizing the biomass conductive charcoal under 800-1000 DEG C, and further pretreating the biomass conductive charcoal, to obtain final biomass conductive charcoal. After the biomass conductive charcoal, a resin and a solvent are uniformly mixed according to a mass ratio of 4-10: 1:1-3, a mixture liquid is poured into a stainless steel die with thickness being 1-15mm, the mixture liquid is cured and formed under a constant pressure of 1-20MPa for 0.5-5h, and then the biomass electromagnetic shielding material is obtained after demolded. The method for preparing the electromagnetic shielding material has advantages of good adaptability on raw materials, stable quality and large potential.

The invention discloses a human resource archive query and call management system based on electronics, comprising a classified query module, a fuzzy information query module, a power module, a query algorithm input module, and a human archive information entry module. The output ends of the classified query module and the fuzzy information query module are in signal connection with the input end of a data transmission module. A central processor and an information call module are in two-way signal connection. The information call module and an information management module are in two-way signal connection through a communication module. The output end of the central processor module and the input end of an information comparison module are electrically connected. The output end of the information comparison module and the input end of a query result sorting module are electrically connected. The output end of the query result sorting module and the input end of a query result display module are electrically connected. The system is simple in structure and principle, and can help to facilitate query and call of human archive information and improve the efficiency of archive management.

The present invention relates to a preparing method of a natural bamboo leaf extract antimicrobial agent, belonging to the field of preparing antibacterial agents. The method uses fresh moso bamboo leaves as a raw material. After yellow and decaying bamboo leaves are removed, the moso bamboo leaves are dried, the dried moso bamboo leaves are pulverized, the moso bamboo leaf powder is dissolved in a phosphate buffer, and the mixture is subjected to magnetic stirring in an ice-water bath to obtain a bamboo leaf pulp. Then the bamboo leaf pulp is centrifuged at a high-speed to obtain a supernatant. Ammonium sulfate is used to salt out crude antimicrobial protein peptide, and finally a natural bamboo leaf extract antimicrobial agent is obtained by dialysis. The used raw materials are natural plant leaves which are renewable resources and are large in resource maintaining amount and low in production cost, and so that the antimicrobial agent is easy in preparation steps and operations. The bamboo leaves contain a variety of natural compounds. The natural bamboo leaf extract antimicrobial agent has a good antibacterial effect, produces no influence on the flavor of food to be preserved, and has an antibacterial effect significantly higher than that of ordinary chemical antibacterial agents.

The invention relates to a method for preparing ethanol with manioc wastes as raw materials through synergic saccharification fermentation. The manioc wastes are used as the raw materials to prepare the ethanol through liquification and cellulose-diastase saccharification fermentation. The ethanol preparation method of the invention can realize the production without using chemicals, and performs the resource utilization of the plurality of components in the manioc wastes to achieve high substrate concentration fermentation and shorten the fermentation time. Meanwhile, the relative amount of cellulose in fermentation residues after converting the manioc wastes through the ethanol is reduced, and the content of protein is improved, so that the method is more suitable for preparing pellet feeds (DDGS).

The invention provides a method for preparing ethanol by using furfural residue and oil-tea-cake as raw materials. The production method provided by the invention can directly utilize tea protein in the oil-tea-cake as a nitrogen source required for the growth of yeast, and the cost of a culture media and the dosage of chemicals are reduced; meanwhile, tea saponin in the oil-tea-cake can be used as surfactants to promote the production of the ethanol. Chemical pretreatment does not exist in the whole reaction process, so that the use cost of the chemicals is reduced, and the whole technological process is environmentally friendly. Through the joint development of the furfural residue and the oil-tea-cake, further realization of the efficient use of forestry and agricultural residues is facilitated. Under the conditions that the adding amount of the oil-tea-cake is 10 g/L, the substrate concentration is 15% (w/w) and the use amount of cellulase is 10 FPU/g-cellulose, the concentration of the ethanol in a solution after fermentation for 120 h is 30.54 g/L, and the yield of the ethanol can reach 86.56% of a theoretical value.

The invention provides a preparation method of lactic acid, which comprises the steps of taking an alcoholic fermentation residue of grains or cellulose materials and a furfural residue as raw materials; inoculating lactic acid bacteria; and adding cellulose, and fermenting to produce lactic acid. In the invention, the furfural residue rich in resources and loose in structure is taken as the cellulose materials and commercially available lactic acid bacteria are selected to prepare lactic acid by simultaneous saccharification and mixed fermentation by means of low cost alcoholic fermentation residue as a nitrogen source. The method couples alcoholic fermentation and lactic acid fermentation organically so as to improve the raw material utilization rate and reduce the consumption of chemicals.

The invention relates to a preparation method of a natural preservative regarding red bayberry leaves as a raw material and an application thereof. The preparation method comprises the following steps of: cleaning, drying and smashing the red bayberry leaves, adding ethanol, digesting through the ethanol, combining the extracting solution, filling by a microporous membrane, or centrifuging, introducing the treated extracting solution to pass through the macroporous resin, eluting by using ethanol solution, collecting the ethanol eluant, so as to obtain a red bayberry leaf extract after the eluant is concentrated and dried, and smashing the extract so as to obtain the natural preservative. The raw material used in the method belongs to a natural plant which has big resource preservation amount and low production cost. The preparation method disclosed by the invention has the advantages of simple process, and low preparing cost; and the obtained natural preservative has a good antiseptic and anticorrosive effect, high use safety and an obvious inhibiting effect on typical invasive organisms including escherichia coli and staphylococcus aureus in food, and can be applied to preservation and fresh-keeping of a plurality of animal foods including aquatic products.

The invention relates to a process for comprehensively utilizing laterite-type nickel ore, which comprises the sequential steps of: conducting dump leaching and depositing to low-grade laterite-type nickel ore on one hand to produce nickel sulfide and cobalt sulfide after selective mining/ore dressing, on the other hand conducting pyro-smelting to high-grade laterite-type nickel ore, and obtaining ferronickel after pre-reduction roasting, furnace smelting and refining. The process preferentially combines the technologies of dump leaching and pyro-smelting and is characterized by low comprehensive production cost, high resource utilization rate, easy operation, less investment, small energy consumption, fast effect and the like.