74results about How to "Expand source" patented technology

The invention discloses a fault root cause analysis method based on multi-source equipment data fusion. According to the method, multi-source heterogeneous data such as equipment operation data, maintenance records and environment data are collected and efficiently fused, a fault mode is automatically recognized from fused data, and time sequence evolution characteristics related to faults are mined. And based on the established knowledge base of the fault modes and reasons, and in combination with interactive Bayesian network reasoning and manual feedback, the root cause of the fault is deduced. According to the method, innovative technologies such as active learning and transfer learning are introduced, and the intelligent level, accuracy and efficiency of fault diagnosis are improved. And a visual interface visually presents an analysis process, supports man-machine interaction correction, and enhances interpretability. The method is suitable for the fields of industrial equipment, transportation tools, medical equipment and the like, and the system stability and usability are improved.

The invention relates to bacillus velezensis and application thereof in preparation of a water-soluble microbial agent, and belongs to the technical field of microorganisms. The bacillus velezensis has the effects of producing exopolysaccharides, promoting the formation of soil aggregates, degrading abamectin, hydrolyzing protein, producing indoleacetic acid, promoting the growth of tomato plants and promoting the enzyme activity of tomato rhizosphere soil enzyme. The fertilizer not only has the effects of improving the soil aggregate structure and promoting the growth of tomato plants, but also can accelerate the temperature rise of the abamectin fermentation waste residue compost, prolong the high-temperature period and shorten the compost period, and is beneficial to promoting the harmless treatment and resource utilization of the abamectin fermentation waste residue.

The invention discloses a recombinant VI-type collagen as well as a preparation method and application thereof. The recombinant VI-type collagen comprises a protein gene segment derived from a natural VI-type collagen alpha2 chain, and proteins P0607, P060702 and / or P060703 capable of promoting cartilage cell proliferation activity are expressed. Gene segments derived from a natural type VI collagen alpha2 chain are integrated through a genetic engineering means, sequence optimization and repetition are carried out on the gene segments to enhance the biological activity of the collagen, the recombinant type VI collagen P0607, P060702 and P060703 can be stably and efficiently produced, the recombinant collagen has the effect of promoting chondrocyte proliferation, and the recombinant collagen can be applied to the field of cartilage cell proliferation. An efficient and reliable biological manufacturing way is provided for research, development and production of osteoarthritis medicines.

The invention discloses a rapid tracing method for a spatial close-distance approaching target, and belongs to the technical field of aerospace. The implementation method comprises the following steps: constructing a space target satellite information database, defining a satellite orbit state in the database as an initial orbit state, and constructing a space target static index; when the space target appears in the sensing range of the observation spacecraft, determining a target orbit by using the cubic angle plus distance observation information so as to obtain an approaching orbit state when the space target appears in the sensing range of the observation spacecraft; based on a hybrid optimization method, solving the fuel consumption required by each target satellite in the database for transferring from an initial orbit state to an approaching orbit state, and constructing dynamic indexes of the space target satellites; and comprehensive index scores of the satellites in the database are given in combination with the static and dynamic indexes. And screening a preset number of satellites with the maximum source possibility in the database by using the comprehensive index score, thereby realizing the tracing of the unknown target satellite in the space.

The invention discloses a BHET hydrolase designed based on an inverse folding algorithm and a preparation method of the BHET hydrolase, and relates to the technical field of biology. The preparation method comprises the following steps: selecting polyester hydrolase PHL7, learning a protein crystal structure by using a deep learning algorithm Protein MPNN, carrying out three-dimensional structure modeling by using Esmfold, carrying out molecular docking on candidate protein and BHET, carrying out molecular dynamics simulation, and screening out protein which is well combined with a substrate; performing expression and purification; the invention further discloses the application of the BHET hydrolase in hydrolysis of BHET. Through the screening process, the BHET hydrolase can be simply, rapidly and efficiently screened from the candidate sequences generated in a large scale, and the source of the BHET hydrolase is expanded.

The invention relates to the technical field of medicine preparation, in particular to a preparation method of ferric carboxymaltose. The preparation method comprises the following steps: by taking first maltodextrin and second maltodextrin as raw materials, oxidizing to generate carboxyl maltodextrin; complexing the carboxyl maltodextrin and ferric trichloride to prepare a carboxyl maltodextrin iron complex; and finally, curing and refining the carboxyl maltose iron complex to obtain the carboxyl maltose iron. Wherein the DE value of the first maltodextrin is 10 to 14; the DE value of the second maltodextrin is 16 to 20. According to the invention, two kinds of maltodextrin with specific DE values are used as raw materials, so that the ferric carboxymaltose can keep a relatively small dispersion coefficient, and the molecular weight is accurate and controllable; meanwhile, the source of the raw materials is widened, and the raw materials are not limited to a certain specific DE value any more.

The invention relates to the field of ore processing, and discloses production equipment for preparing high-purity quartz sand from non-beautiful quartz ore, the production equipment comprises a jaw crusher, a cone crusher and a side plate, a vibration motor is fixedly mounted at the upper end of the outer side of the side plate, a first sliding hole and a second sliding hole are formed in a plate body of the side plate, and a screening mechanism is arranged on the inner side of the side plate; the screening mechanism comprises a screening plate and a vibration plate, and a plurality of triangular teeth are fixedly connected to the upper surface of the screening plate. Through ore grinding, magnetic separation and washing, various impurities in the non-beautiful quartz ore are effectively removed; the production method disclosed by the invention is not specific to single type of non-beautiful quartz ores, can adapt to non-beautiful quartz ores with different impurity contents by flexibly adjusting parameters of each key process, adopts vertical design, occupies extremely small space, and is suitable for being popularized and applied globally; the raw material source is widened, so that the dependence on high-price quartz ore is reduced.

The invention discloses a mobile platform hull cleaning robot positioning method based on a self-adaptive federated filter. The method comprises the following steps: S1, representing the position, speed and attitude information of a cleaning robot by taking an inertial navigation system as a reference; s2, the inertial navigation system outputs a three-dimensional attitude angle, three-axis position information and three-axis speed information; s3, outputting three-dimensional attitude angle information by the electronic compass; s4, acquiring three-dimensional pose information by a speedometer; s5, if the cleaning robot is on the water, a GPS module obtains the current position and speed information; if the robot is underwater, a depth meter collects current depth information; s6, completing fusion of data information of an inertial navigation system, an electronic compass, a speedometer, a depth meter and a GPS module by adopting a federated filter; and S7, obtaining pose and speed information of the cleaning robot relative to the ship body. The method has the advantages of high positioning precision, no error divergence along with time, low operation complexity, small data volume and good real-time performance by adopting a secondary filtering structure of a main filter and a sub-filter of a federated filter.

The invention discloses a high-entropy alloy fiber material of a core-shell structure and a preparation method and application thereof, and belongs to the technical field of alloy material preparation.The method comprises the steps that a buffering agent is dissolved in deionized water to obtain a solution A, the solution A is heated, a complexing agent, additional salt, a reducing agent and soluble metal salt are sequentially added, stirring and dissolving are conducted, and a solution B is obtained; adjusting the pH value of the solution B, and standing at room temperature to obtain an electrolyte; performing ultrasonic cleaning, flushing and drying on the conductive fibers with acetone, ethanol and deionized water respectively; a saturated calomel electrode is used as a reference electrode, a conductive fiber is used as a working electrode, a carbon electrode bar is used as a counter electrode, the three electrodes are immersed in an electrolyte, a constant-potential electro-deposition method is used, electro-deposition is carried out on the surface of the conductive fiber, and the high-entropy alloy fiber is obtained. Uniform electro-deposition of the high-entropy alloy on the surface of the fiber is achieved, and the high-entropy alloy fiber material with excellent conductivity is obtained.

The invention belongs to the technical field of building materials, and particularly relates to high-strength ceramsite and a preparation method thereof. The high-strength ceramsite is prepared from the following raw materials in parts by weight: 30 to 60 parts of secondary aluminum ash, 10 to 40 parts of electroplating sludge and 10 to 60 parts of building sludge, the preparation method comprises the following steps: uniformly mixing the secondary aluminum ash, the electroplating sludge and the building sludge, spraying water, continuously stirring, pressing, air-drying, sintering at high temperature, and naturally cooling. Secondary aluminum ash, electroplating sludge and building sludge are used as raw materials, an optimized preparation process is combined, a ceramsite product which is higher in strength and more uniform in foaming is produced, the obtained ceramsite product not only has better performance and quality, but also can further promote the resource utilization process of solid waste, and the production cost is reduced. And the dual goals of environmental protection and economic benefit are achieved.

The invention discloses a thermoplastic polyurethane elastomer which comprises a reaction product of a bio-based polyisocyanate component, a bio-based polyol component and an optional chain extender component, the polyisocyanate component comprises 2, 5-bis (methyl isocyanate) furan and / or L-lysine ethyl ester diisocyanate, the bio-based polyol component comprises 2, 5-bis (methyl isocyanate) furan and / or L-lysine ethyl ester diisocyanate, and the chain extender component comprises 2, 5-bis (methyl isocyanate) furan and / or L-lysine ethyl ester diisocyanate. The bio-based polyol component comprises poly (trimethylene carbonate) polyol and / or polylactic acid polyol. According to the invention, the range of raw materials for preparing the polyurethane material is widened, and the prepared thermoplastic polyurethane not only has degradability, but also has thermal plasticity, and the degraded product is non-toxic and harmless and is environment-friendly.

The invention relates to a derived hydrogen production method in a fused quartz femtosecond laser processing / welding process, which comprises the following step of: treating and washing coated fused quartz glass by femtosecond laser to prepare hydrogen. The invention provides a brand new hydrogen production thought, on one hand, a large number of atomic-scale defects are introduced in an ALD coating mode, and the source of Si-OH is increased; on the other hand, four hydrogen source paths are provided through the reaction process of SiOH, interstitial water molecules, Si-OH and atomic-scale defects under the action of femtosecond laser. The method is clean, simple and efficient, and does not need a catalyst; hydrogen is produced through renewable water energy and continuously and repeatedly utilized fused quartz glass, carbon dioxide emission is avoided in the reaction process, and the method has important guiding significance on development of a new laser hydrogen production technology.

The present invention provides a multi-satellite mission planning method, system, storage medium and electronic device based on a distributed collaborative particle swarm algorithm, and relates to the technical field of multi-satellite mission planning. In the present invention, a satellite resource set and a task set to be observed are obtained; based on the satellite resource set and the task set, multiple feasible solutions for multi-satellite mission planning are obtained; based on the multiple feasible solutions, a distributed co-evolutionary particle swarm algorithm is used to obtain the final distributed multi-satellite mission collaborative observation planning scheme. A distributed co-evolutionary particle swarm algorithm is designed, and particles are co-evolved and then randomly matched to resolve conflicts, so as to obtain complete new particles, improve population diversity, and introduce a pairwise competition mechanism at the same time, increase the source of particle social learning, and avoid the occurrence of "premature" convergence, thereby obtaining a better distributed multi-satellite mission collaborative observation planning scheme and improving the efficiency of satellite resource utilization.

The invention belongs to the field of microbial technology, and specifically relates to a strain of acid fish lactobacillus PKC6 and an application thereof. The acid fish lactobacillus PKC6 is deposited in the General Microbiological Center of the China Microbiological Culture Collection Administration Committee, and the deposit number is CGMCC NO. 27201. The new strain of acid fish lactobacillus PKC6 screened by the invention is resistant to gentamicin, polymyxin B, vancomycin, kanamycin and norfloxacin, sensitive to ampicillin, penicillin, cephalexin and doxycycline, and has a good inhibitory effect on Escherichia coli and Staphylococcus aureus; the strain screened by the invention, after being compounded with a composite enzyme and co-fermented with palm meal, can greatly increase the content of nutrients in the fermentation product, and has a more obvious promoting effect on the intestinal development of raised animals, thereby achieving the purpose of improving the palatability of feed and promoting intestinal development.

The invention discloses hydrofined aviation hydraulic oil, which is prepared from the following components in parts by weight: 100 parts of hydrofined base oil, 16 to 20 parts of tackifier T602, 0.01 to 2 parts of antioxidant, 0.01 to 1.0 part of anti-wear agent tricresyl phosphate and 1 to 100 ppm of anti-foaming agent methyl silicone oil, the copper sheet corrosion of the hydrofined aviation hydraulic oil according to a GB / T 5096 test is not higher than 1b, and the kinematic viscosity of the hydrofined aviation hydraulic oil at-54 DEG C according to a GB / T 265 test is not greater than 1150mm < 2 > / s. Compared with 15 # aviation hydraulic oil, the aviation hydraulic oil provided by the invention has the advantages that under the condition that other performances are basically kept unchanged, the corrosion performance and low-temperature performance of a copper sheet are improved, meanwhile, the problem of single source of base oil is solved, and the source of the base oil is expanded. Particularly, the trend that the quality of crude oil is gradually degraded at present can be well overcome, the problem of single source of base oil is solved, the source of the base oil is expanded, and the requirement for improvement of 15 # aviation hydraulic oil in China at present is met.

The invention relates to a lactic acid bacteria composition and an application thereof in a low-temperature liquid biological feed, in particular to a lactic acid bacteria complex microbial inoculant suitable for a low-temperature environment (15-25 DEG C) and a fermentation process of the lactic acid bacteria complex microbial inoculant. The combination comprises pediococcus pentosaceus WP101 (the preservation number is CCTCC NO: M 20241055) and lactobacillus plantarum PC01 (the preservation number is CCTCC NO: M2022106), and the viable count of the combination is 25 million cfu / g feed according to the proportion of 1: 1. By optimizing the synergistic effect of strains and fermentation conditions, efficient fermentation in a low-temperature environment is realized, the content of lactic acid in the feed is remarkably increased, and growth of harmful microorganisms is inhibited. Animal experiments show that the fermented feed can reduce the diarrhea rate of piglets by 45.5% (Plt; 0.05), improve the daily gain of fattening pigs in the later period and the feed conversion rate, and reduce the loss of dry matters at the same time. The problem of energy consumption caused by the fact that traditional medium-temperature fermentation depends on heating and heat preservation is solved, technical support is provided for large-scale low-temperature liquid biological feed production, and economic and environmental benefits are achieved.

The invention discloses a method for synthesizing ziram. The method comprises the following steps: S1, stirring a compound surfactant and zinc oxide to obtain a dispersion liquid; s2, sealing and pressurizing, and adding dimethylamine for reaction to obtain a dimethylamine salt mixture; and S3, dropwise adding carbon disulfide, performing condensation reaction, and removing impurities to obtain the ziram, wherein the compound surfactant contains at least one of a nonionic surfactant, an anionic surfactant or a macromolecular surfactant. According to the method, the efficient and green synthesis of the ziram is realized through the synergistic effect of a compound surfactant system, a sealed pressurized reaction and a progressive charging sequence.

This utility model relates to the field of digital television technology, specifically to a dual-tuner USB TV stick circuit, including an antenna interface. Through the design of first and second dual tuners and dual demodulation circuits, it achieves parallel frequency selection, amplification, and demodulation of two terrestrial broadcast digital television signals, supporting users to watch two programs simultaneously or record another program while watching the first. This overcomes the functional limitations of single-tuner devices, greatly improving the flexibility and diversity of program reception. The low-noise amplifier (LNA) in the signal amplification circuit performs noise reduction and amplification on the signal received by the antenna, ensuring signal quality. The signal conversion circuit converts the TS stream signal into a USB signal, which is then separated and transmitted via a USB hub circuit, ensuring stable signal flow within the device, reducing signal loss and interference, and providing a high-quality signal source for subsequent playback and recording. The SD / TF card recording circuit, in conjunction with the USB hub circuit, enables local storage of the program stream, eliminating the need for users to rely on the main device's memory space.

The application discloses a carbon dioxide capturing method, a capturing system and application thereof. The method comprises the following steps: mixing potassium carbonate solution and carbon dioxide gas to obtain a suspension, filtering the suspension to obtain a filtrate; after the battery device is powered on, the filtrate is introduced into a cathode area of the battery device, and carbon dioxide gas is introduced into the cathode area; after the solution in the cathode area is heated and the carbon dioxide is separated, the solution is introduced into an anode area of the battery device. The carbon dioxide capturing method provided by the application can generate electric energy while capturing carbon dioxide by using a battery device, carbon dioxide gas is introduced into the cathode area of the battery device to capture the carbon dioxide, after power on, K2CO3 is used as a reaction raw material of the anode area, the output power of the battery and the conversion rate of CO2 are high, the maximum power density can reach 50 W / m 2 , and the CO2 conversion rate can reach more than 24%.

The present application relates to the technical field of fermented feed processing, in particular to a fermented feed of Citrus paradisi and a preparation method thereof and application of the fermented feed in improving meat quality of broilers, and the fermented feed is prepared by using residual fallen fruits, which is not only beneficial to solving the problems of environmental pollution and resource shortage in livestock industry caused by the untreated secondary fruits and fallen fruits, but also can increase the source of feed raw materials and promote sustainable economic development; through fermentation research on the preparation method, it is found that different strains are used to prepare fermented feeds, and different fermented feeds have different effects, the fermented feed prepared by using Aspergillus oryzae XMS01 and Lactobacillus plantarum XMS02 together can effectively improve the chicken meat quality, through research on the feed, it is found that the feed can effectively improve the chicken weight gain, and can effectively reduce the abdominal fat rate of Guangxi Fufeng broilers, and improve the chicken meat quality of Fufeng broilers, and is a fermented feed which can replace conventional daily ration.

The application discloses a method for preparing direct reduced iron from iron-containing raw materials with near-zero carbon, and belongs to the technical field of steel metallurgy. The method comprises the following steps: uniformly mixing iron-containing raw materials, an organic-inorganic composite binder, biomass carbon and water, and then sequentially performing high-pressure forming and drying and solidification to obtain cold briquetting; and the cold briquetting is reduced by pure hydrogen to obtain direct reduced iron. The method can prepare cold briquetting suitable for the performance requirements of a shaft furnace for direct reduction at a relatively low temperature (<300 DEG C), and further prepares direct reduced iron by pure hydrogen reduction. The method has a short process flow, near-zero carbon emission, and provides a new technical route for the green and low-carbon transformation of the steel industry.

The invention relates to the technical field of high polymer materials, in particular to a high-strength non-polyolefin breathable film as well as a preparation method and application thereof. The non-polyolefin film comprises a base film and polyamide at least partially located on the two sides of the base film. Wherein the base film is made of non-polyolefin; the average pore size of the non-polyolefin film is between 0.5 [mu] m and 10 [mu] m. According to the method, non-polyolefin is used as a basement membrane, the two sides of the basement membrane are coated with a casting membrane solution of polyamide with specific appropriate concentration, then polyamide is coagulated on the basement membrane in a coagulating bath, and the membrane with appropriate air permeability, good microbial barrier property and good air permeability can be obtained according to the method. Meanwhile, the non-polyolefin film with high strength is suitable for the field of medical packaging, the source of the breathable film used in the field of medical packaging is greatly widened, and the non-polyolefin film has extremely high application value.

The present invention belongs to the field of microorganisms, and specifically relates to a strain of Pediococcus pentosaceus PKC10 and its application. The Pediococcus pentosaceus PKC10 is deposited in the General Microbiological Center of the China Microbiological Culture Collection Administration Committee, and the deposit number is CGMCC NO.27203. The new strain Pediococcus pentosaceus PKC10 screened by the present invention is resistant to gentamicin, polymyxin B, vancomycin, kanamycin and norfloxacin, sensitive to ampicillin, penicillin, cephalexin and doxycycline, and has a good inhibitory effect on Escherichia coli and Staphylococcus aureus; the screening method provided by the present invention is simple and efficient; the screened strain has good application prospects in preparing fermentation agents, further preparing feeds, etc., turning agricultural and sideline products into treasures, broadening the source of feeds, reducing breeding costs, alleviating the contradiction of insufficient feed supply, and being conducive to the development of animal husbandry.

The application discloses a prebaked anode, characterized in that the raw material for preparing the prebaked anode comprises aggregate and binder, wherein the aggregate comprises calcined petroleum coke and / or coal-based coke, and the binder comprises low-ash high-caking bituminous coal. The prebaked anode product prepared according to the application has better homogeneity and better product performance, the raw material source of the prebaked anode is expanded, and the dependence of the prebaked anode raw material on petroleum coke and coal pitch is reduced.

The invention discloses a lepidolite collecting agent and a preparation method and application thereof, and belongs to the technical field of lepidolite flotation. The lepidolite collecting agent is prepared from 10-20 parts of coconut oil amine, 10-40 parts of ethylene glycol, 5-20 parts of hydrochloric acid, 3-5 parts of an emulsifier, 1-10 parts of alkali and 22-51 parts of soybean oil. The lepidolite collecting agent is good in universality and has a good collecting effect on refractory mica ore; and when lepidolite flotation is carried out under a low-temperature condition, relatively high lithium oxide grade and recovery rate can also be obtained. According to the lepidolite collecting agent, by optimizing the formula, the optimal collecting effect of ore pulp can be achieved under the neutral condition, and multiple times of desliming are not needed. The preparation process of the lepidolite collecting agent is simple, the collecting effect is good, and the lepidolite collecting agent has very important practical value.

The invention discloses a ZSM-5 molecular sieve, a catalyst for preparing ethylbenzene through benzene alkylation and preparation and application of the catalyst. According to the ZSM-5 molecular sieve, the b-axis thickness is 30-100 nm, and the exposure degree of a crystal face perpendicular to the b-axis direction is 65%-75%. When the catalyst prepared from the ZSM-5 molecular sieve and used for preparing ethylbenzene through benzene alkylation is used for a reaction for preparing ethylbenzene through benzene alkylation, the ethylene conversion rate is high, the selectivity of ethyl in an alkylated product is high, and the mass content of key impurity dimethylbenzene is low.

The invention provides a short-process preparation method of an ultra-high-purity fluorine tantalic acid solution, which utilizes a hydrofluoric acid-sulfuric acid-MIBK combined system, adopts a tantalum-containing solution as a raw material, and realizes efficient preparation of the high-purity fluorine tantalic acid solution through the process steps of acid adjustment, extraction, acid pickling and tantalum removal. According to the preparation method, the production efficiency is improved, the production cost is reduced, the product quality and purity are remarkably improved, and reliable technical support and application prospects are provided for industrial production of the high-purity fluorine tantalic acid solution.

A sesquiterpene acyl glycoside in rhizoma artemisiae japonicae and preparation method and application thereof. The present application belongs to the technical field of medicine, and relates to extraction and separation of a sesquiterpene acyl glycoside compound rhizoma artemisiae japonicae cembranoid I from rhizome of rhizoma artemisiae japonicae by using macroporous resin, silica gel and preparation chromatography and the like, and the preparation method is simple and easy to implement. 23 H 38 O 10 In vitro human cancer cell inhibition activity research shows that the compound has anticancer activity, including obvious inhibition on human colon cancer cells HT-29 and human breast cancer MCF-7 cells, and is expected to be developed into a new anticancer drug.

The invention discloses a method for preparing high-quality manganese monoxide by taking medium-low-grade pyrolusite as a raw material, and relates to the technical field of preparation of high-quality manganese monoxide products. The method comprises the following steps: crushing to prepare powder, blending coal, uniformly mixing, carrying out high-temperature reduction roasting through a reduction kiln to obtain manganese monoxide powder, cooling through a slag cooler, and carrying out magnetic separation in a magnetic separator to obtain concentrate which is a high-quality manganese monoxide product. By means of the magnetic separation process, the concentrate recovery rate reaches 50% or above, the resource utilization rate is remarkably increased, meanwhile, the battery-grade manganese sulfate product is prepared from the tailings through the leaching process, recycling of the tailings is achieved, and economic benefits are further increased; by optimizing the technological process, waste generation is reduced, the influence on the environment is reduced, the manganese content of the obtained manganese monoxide product reaches 60% or above, the quality requirement of high-quality manganese monoxide is met, and the manganese monoxide can be used for battery materials and can replace feed-grade manganese sulfate to be applied to multiple fields of animals and plants, catalysts, electronic materials and the like.

The invention discloses a method for producing degradable mulching film paper by utilizing bamboo fibers and coffee grounds, and solves the technical problem that the raw material source of the degradable mulching film paper is relatively limited. The method comprises the steps of cooking, washing, pulping, burdening, forming on a net, squeezing, sizing, drying, reeling, rewinding and packaging, the raw materials adopt 90% by mass of bamboo fibers and 10% by mass of coffee grounds, the raw materials are pulped at a high concentration of 10%-15% and then ground into pulp through a thick disc mill, then the pulp is formed on the net, the concentration of the net is set to be 0.35%-0.5%, and the pH value of the net is set to be 6.5-7.5. The bamboo fibers and the coffee grounds are used as the raw materials, so that the raw material sources of the mulching film paper are enriched, and the performance of the mulching film paper is improved to a certain extent.