27results about How to "Speed ​​up the conversion process" patented technology

The invention relates to a fusion sorting recommendation method and system based on multi-path recall, and belongs to the field of recommendation systems. Comprising the steps of obtaining commodity information and an interaction behavior between a user and a commodity; calculating a first recommendation score of each commodity through a content-based recall mode on the basis of the similarity between the commodity attribute features and the user portraits; calculating a second recommendation score of each commodity through a recall mode based on collaborative filtering based on the user behavior characteristics; based on click rates of different recall modes, performing weighted average on the first recommendation score and the second recommendation score, and calculating a weighted average score of each commodity; sorting the commodities in a descending order according to the weighted average score to obtain a commodity recommendation list; and preprocessing the commodity recommendation list to generate a final recommendation list. And the correlation, diversity and effectiveness of recommendation results are improved.

The utility model relates to a bio-organic fertilizer secondary curing device, including frame, stirring subassembly and water injection subassembly, the other side of frame top plate is provided with the through hole along the frame vertical direction, the through hole is connected with the storage box in the clamping mode, the stirring subassembly includes the rotating rod, the upper end outer wall of the rotating rod is sleeved with the first gear, and the first gear is connected with the storage box in the clamping mode. And a rotating motor is arranged on one side of the upper surface of the top plate of the storage box, a second gear sleeves the outer wall of an output shaft of the rotating motor, and a spiral blade is wound on the outer wall of the rotating rod and located below the first gear. According to the secondary curing device for the bio-organic fertilizer, a stirring assembly arranged in a storage box is utilized, a rotating motor drives a second gear to rotate, and under cooperation of a first gear, a spiral blade drives fertilizer to make spiral rolling movement in the storage box while crushing fertilizer cakes, so that the fertilizer can be stirred more uniformly, and the fertilizer utilization rate is improved. Decomposition and conversion of organic matters are accelerated, and the production efficiency is improved.

The invention relates to an improved novel wall connecting piece, and relates to the technical field of building construction, the improved novel wall connecting piece is mounted on a wall template so as to be conveniently embedded in a wall, the wall connecting piece comprises a connecting piece inserted into the wall template, the connecting piece penetrates through the wall template so as to form an overhanging end on the inner side of the wall template, and the overhanging end is connected with the wall template through a connecting rod. A connecting end is formed on the outer side of the wall formwork, the width of the end, away from the wall formwork, of the anchoring part is enlarged to form an anchoring part expanding head, more contact parts are increased during concrete pouring through the anchoring part expanding head, and after the concrete is completely dried to form the wall, the anchoring part expanding head is expanded to form the anchoring part. The anchoring part can generate a larger contact area during concrete pouring, then the connecting part is connected with the anchoring part, the anchoring part expanding head is reliably connected with the wall body, and the connecting effect is improved by generating more contact parts between the anchoring part expanding head and the wall body; and the wall connecting piece cannot deviate or fall off in the concrete pouring and vibrating operation process.

The application discloses a customer intention recognition method and device, an electronic device, and a storage medium. The method comprises the following steps: obtaining a data processing result of a chat record, and inputting the data processing result into a pre-configured agent group; obtaining an analysis result and a user portrait through a first agent and a second agent in the agent group, wherein the first agent is used for planning and summarizing customer emotions, and the second agent is used for extracting a user portrait; and obtaining a customer intention recognition result according to the analysis result and the user portrait. Through the application, not only basic data or simple labels can be output, but also targeted optimization suggestions can be provided for follow-up actions of customer managers based on large model agent technology, and planning schemes for subsequent customer development and customer retention are generated in combination with customer insight results, so that the follow-up direction of employees is clear, customer insight is converted into an actual business growth strategy, and customer conversion and retention efficiency is improved.

The application provides a method for treating municipal domestic sewage by using micro-nano bubble reinforced aerobic granular sludge, inoculates aerobic granular sludge which can simultaneously accumulate nitrous nitrogen and remove pollutants into a sequencing batch reactor, introduces municipal domestic sewage, carries out micro-nano bubble aeration, and operates the reactor in an anaerobic / aerobic / anoxic mode; the micro-nano bubble aeration controls the dissolved oxygen concentration at 2-3 mg / L, so that the self-enrichment and stable operation of anaerobic ammonia oxidation bacteria in the aerobic granular sludge are realized. The method utilizes the high oxygen mass transfer efficiency and long residence time of the micro-nano bubble, strengthens the pollutant conversion process in the system, and ensures a suitable anaerobic microenvironment for the anaerobic ammonia oxidation bacteria in the aerobic granular sludge; under the condition of treating municipal domestic sewage, the average concentrations of COD and ammonia nitrogen in the effluent are as low as 34.65 mg / L and 1.92 mg / L respectively, and the total nitrogen removal rate reaches 82.53%.

The application discloses a double-layer bidirectional wind wheel, which comprises a body and a plurality of blades arranged on the body, wherein each blade is formed as an arc-shaped wind collecting surface, and each blade comprises a first blade and a second blade arranged along the height direction of the wind wheel, and the wind collecting surface of the first blade is arranged reversely to the wind collecting surface of the second blade. The application further discloses a double-layer bidirectional fan shell and a double-layer bidirectional fan comprising the wind wheel and the fan shell. The double-layer bidirectional wind wheel, the fan shell and the fan of the application can realize bidirectional air outlet, and the air outlet is uniform and pressure balanced. Meanwhile, the wind energy loss is small, and the efficiency is high.

The invention relates to the technical field of food processing, in particular to a preparation method of rice straw and corncob instant rice. Comprising the following steps: rice straw treatment: crushing, removing impurities, adding a decomposition agent, adding urea to adjust the carbon nitrogen ratio, spraying water, and composting and fermenting at the temperature of 60-65 DEG C; corncob treatment: crushing, adding water to immerse corncobs, carrying out water pretreatment, heating and soaking, and removing impurities; mixing the treated rice straws, corncobs and rice according to a ratio, adding water to soak for 30-60 minutes, washing until the water is clear, adding water according to a rice-water ratio of 1: (1.2-1.8), steaming for 30-60 minutes, and braising for 10-20 minutes; and rehydration treatment: taking the cooked rice grains, putting the cooked rice grains in boiling water, covering the boiled water, and treating the cooked rice grains by a twin-screw extrusion method for 20-40 minutes. According to the invention, the rice straws and the corncobs are used as agricultural wastes, the wastes are turned into wealth through technical transformation, and the production cost is reduced.

This invention relates to the field of automated experimental equipment and material characterization technology, and in particular to an automated XRF testing system for electrode materials. The automated XRF testing system for electrode materials includes an XRF testing platform, a six-axis collaborative robot mounted on the worktable of the XRF testing platform, a loading and unloading conveyor assembly, a storage assembly, and an XRF detection instrument. The automated XRF testing system of this invention can achieve automated loading and unloading and automated XRF testing, meeting the needs of high-throughput experiments and automated production lines, and improving the characterization efficiency, screening efficiency, and R&D efficiency of novel electrode materials.

The invention relates to the technical field of catalysts, and discloses a formed catalyst and a preparation method and application thereof.The formed catalyst comprises a lanthanum-containing substance and cordierite, the cordierite comprises Mg and Fe, and the molar ratio of Mg to Fe in the cordierite is larger than 1. The formed catalyst provided by the invention has high mechanical strength, and can meet the requirements of equipment on the catalyst in the industrial amplification process. When the formed catalyst is used for oxidative coupling of methane, the conversion of methane and the selectivity of hydrocarbon with two or more carbon atoms can be improved.

The present application provides a preparation method and application of a crystalline silicon solar cell having a shallow junction diffusion emitter. The preparation method comprises a diffusion process and a chain oxidation process, the diffusion process comprises low temperature diffusion and high temperature propulsion, and the chain oxidation process comprises high-temperature chain oxidation. According to the present application, firstly, a low-doped diffusion shallow junction having a depth of 0.15 um is prepared by means of optimization of the diffusion process, and doping with a certain dose concentration is formed on the surface of a diffusion layer by using photon thermal activation radiation energy of high-temperature chain oxidation, so as to solve the mismatch problem of alloy ohmic contact subsequently formed with silver paste, and finally, the photoelectric conversion efficiency is improved to a high degree.

The invention belongs to the technical field of traditional Chinese medicine preparations, and discloses a retroauricular administration type sleep-promoting traditional Chinese medicine compound composition and a preparation method thereof. The retroauricular administration type sleep-promoting traditional Chinese medicine compound composition is prepared from pericarpium citri reticulatae, fingered citron, agastache rugosus, liquorice, lily, fried spina date seed, processed polygala tenuifolia, schisandra chinensis, poria with hostwood, platycladi seed, acanthopanax, cortex albiziae, rhizoma acori graminei, rhizoma anemarrhenae, albizia flower and pseudo-ginseng according to a specific mass ratio. According to the preparation method disclosed by the invention, the dissolution rate and the transdermal absorption efficiency of active ingredients in the medicinal materials are remarkably improved by carrying out cell wall breaking pretreatment on the prepared polygala tenuifolia and / or the schisandra chinensis, including modes of enzymolysis, bacterium-enzyme synergistic fermentation and plasma-assisted wall breaking. According to the preparation method, an ethanol-water mixed solution is used for extraction and centrifugal separation, and a medicine extracting solution is obtained. The composition can quickly and efficiently play a role in promoting sleep in a retroauricular administration manner, and has the comprehensive effects of soothing the nerves, stabilizing the mind, soothing the liver, relieving depression and promoting the circulation of heart and kidney.

The invention relates to the technical field of microorganism concentrated solutions, and discloses a freshwater fish culture fishy smell removal microorganism concentrated solution which is composed of natural humic acid accounting for 10%-15% of the total volume of the microorganism concentrated solution, the natural humic acid plays an important role in regulating the water environment, and the natural humic acid accounts for 10%-15% of the total volume of the microorganism concentrated solution. Suitable conditions can be provided for the growth of beneficial microorganisms, and meanwhile, the fishy smell can be preliminarily removed by reacting with part of substances causing the fishy smell. In order to reduce the fishy smell in a freshwater fish culture water body and improve the water quality, the fishy smell-removing microbial concentrated solution for freshwater fish culture is prepared by using the microbial concentrated solution consisting of natural humic acid, fulvic acid, natural beneficial microbial flora, biological enzyme, amino acid and efficient antibacterial enzyme components according to the requirements of timely addition and light shielding as much as possible. And for fish tank culture, the additive is diluted according to the proportion of 200 times for use, so that the fishy smell in freshwater fish culture water can be reduced, and the water quality can be improved.

The application belongs to the technical field of desulfurizer, and discloses a natural gas desulfurizer, a preparation method and application thereof, the natural gas desulfurizer comprises 2-(2-morpholine-4-ethoxy)-ethanol and N-methyl diethanolamine with a molar ratio of (1-3):(2-4). The removal rate of H2S reaches more than 98%, and the removal rate of organic sulfur reaches 70%-75%. The application expands the application range of N-methyl diethanolamine as a main agent, and can be used for refining and removing hydrogen sulfide and organic sulfur in the acidic gas in the natural gas, coal chemical industry and petroleum chemical industry process. The preparation process of the composite desulfurizer is simple, the cost is low, the environmental pollution is small, and the application effect is outstanding.

This invention relates to a hollow molybdenum diselenide microsphere and its preparation method. The product is prepared by the following steps: ammonium molybdate is weighed and dissolved in deionized water, stirred until completely dissolved; dopamine hydrochloride is then added to the resulting solution and stirred until homogeneous; anhydrous ethanol is added to the resulting solution and stirred until homogeneous; ammonia is added dropwise to the resulting solution; the resulting solution is allowed to stand at room temperature for a period of time, washed, and dried to obtain a precursor; the obtained precursor and selenium powder are placed in an inert atmosphere and calcined in a sealed environment, then naturally cooled to room temperature to obtain the hollow molybdenum diselenide microsphere. The beneficial effects of this invention are: it can suppress the shuttle effect of polysulfides through strong electronic interactions with polysulfides, promoting the catalytic conversion process of polysulfides, making it an ideal high-efficiency electrocatalyst; simultaneously, the hollow structure can physically confine polysulfides, thereby effectively suppressing the shuttle effect of polysulfides.

The present application relates to the field of biotechnology science, and more particularly to an ecological technology method for efficiently reducing antibiotic-resistant genes in cow dung; by introducing a certain amount of angelica residue and cow dung to improve the self-pollution control ability of earthworms, the antibiotic-resistant gene pollutants in the cow dung are efficiently eliminated, the removal rate of beta-lactam antibiotic-resistant genes can be increased to more than 80%, the removal rate of sulfonamide and tetracycline-resistant genes also reaches 60%-70%, and the reduction of mobile transmission elements is also increased from about 30% of the conventional conversion method to more than 60%, and further, the present application can also make full use of traditional Chinese medicine residue and cow dung waste, so as to achieve the purposes of waste-to-resource, harmless treatment and safe resource utilization.

The invention relates to the technical field of photoelectric detectors, in particular to a perovskite / polymer heterojunction-based photoelectric detector and a preparation method thereof, and the photoelectric detector sequentially comprises a substrate, a conductive cathode formed on the substrate, and an electron transport layer formed on the conductive cathode from bottom to top, the perovskite solar cell comprises an electron transport layer, a perovskite light active layer formed on the electron transport layer, an organic polymer heterojunction layer formed on the perovskite light active layer, an electron blocking layer formed on the organic polymer heterojunction layer, and a metal anode formed on the electron blocking layer, the organic polymer heterojunction layer is PDPP3T: PC71BM, and the metal anode is formed on the metal blocking layer. The double-active-layer perovskite-based photoelectric device shows relatively high photoelectric response capability in a near-infrared band, in addition, the carrier extraction capability and mobility are enhanced, the device obtains ultra-low dark current, and the detection rate and responsivity of the device are obviously improved.

A molten silicon feeder for continuous czochralski single crystals includes an open crucible having a top opening located at the top and an injection port located in the lower part, the open crucible receiving and accommodating a solid silicon raw material; a heater for heating the open crucible, so that the solid silicon therein is melted, and injected below through the injection port at the bottom of the open crucible; a shell for enclosing and vacuum-sealing the overall structure of the molten silicon feeder.

The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a coal-fired flue gas desulfurizer, a preparation method and a desulfurization method, the coal-fired flue gas desulfurizer is prepared from the following raw materials by mass: 85-90% of CaCO3, 1% of KMnO4, 1% of KClO3, 4% of NaCl, 0.5% of Fe2O3, 1-3% of (CH3COO) 2Ca, and 2-5.5% of fly ash. The use conditions of the desulfurizer are as follows: the calcium-sulfur ratio is 1: 2, the particle size of calcium carbonate is 200 meshes, the temperature is 800-900 DEG C, the additive has direct influence on the desulfurization effect of the desulfurizer, and the concentration of sulfur dioxide in boiler flue gas can be reduced below the national standard by adding the additive.

The invention belongs to the technical field of distillation, and discloses negative pressure energy-saving distillation equipment which comprises a working frame, a square box is fixedly connected to the bottom of the inner wall of the working frame, bearing blocks are fixedly connected to the two sides of the square box, and a wine storage tank is fixedly connected to the bottom of the inner wall, close to the square box, of the working frame. Liquid is input into the distillation tower through a feeding butterfly valve pipe, an annular heating piece is driven and distills the liquid deposited on the top of an inverted cone bearing plate, meanwhile, in the process of starting a vacuum pump, valves of the feeding butterfly valve pipe and a first butterfly valve pipe are controlled, so that the interior of the distillation tower is in a sealed space, and the vacuum pump generates negative pressure; the gas flow in the distillation tower is extracted through the bent pipe, and the pressure in the distillation tower is reduced, so that the boiling point of liquid is reduced, and components in the liquid are separated at a relatively low temperature, thereby not only saving energy, but also protecting heat-sensitive substances and avoiding degradation or loss caused by high temperature.

The application relates to the field of building materials, and particularly discloses a coal gangue activation treatment method, calcined coal gangue prepared by the method and application, the treatment method comprises the following steps: pretreatment: crushing and screening coal gangue to obtain coal gangue particles; pretreatment: treating the coal gangue particles in a eutectic solvent, and performing ultrasonic auxiliary treatment for 2-3 hours, and obtaining pretreated coal gangue after washing, the eutectic solvent comprises HBA components and HBD components, the HBA components are selected from a mixture of choline chloride and an amide compound, and the HBD components are selected from a mixture of a carboxylic acid compound and a polyhydric alcohol mixture; calcination: calcining the pretreated coal gangue at 400-450 DEG C to obtain calcined coal gangue, and the application further discloses the calcined coal gangue prepared by the method, and the application has the characteristics of realizing coal gangue activation treatment at a lower energy consumption.

The invention relates to the technical field of new energy power generation systems, and discloses a new energy grid connection method applied to a new energy power generation system, and the method comprises the following steps: obtaining a new energy grid connection module; alternating current and direct current efficient conversion is carried out, accurate alternating current and direct current conversion is carried out on electric energy directly generated by a new energy power generation system through a high-performance grid-connected inverter, it is ensured that the energy loss in the conversion process is reduced to the minimum, and meanwhile the conversion efficiency is improved; and deep filtering processing: performing strict filtering processing on the direct current output by the inverter. According to the new energy grid-connected method applied to the new energy power generation system, in order to improve the energy conversion and grid-connected efficiency, accurate alternating current and direct current conversion is achieved through a high-performance grid-connected inverter, energy loss is greatly reduced, the conversion efficiency is improved, harmonic waves and noise are removed through deep filtering processing, it is ensured that the electric energy quality reaches the standard, and power grid interference is reduced; therefore, the energy conversion and grid connection efficiency can be improved.

The invention provides a method for efficiently preparing furfural through catalytic hydrolysis of cellulose, which comprises the step of efficiently preparing furfural through catalytic efficient hydrolysis by using cellulose as a raw material. The preparation method of the hydrolysis catalyst mainly comprises the following steps: weighing a certain mass of combustible solid waste, putting the combustible solid waste into a tubular furnace, and carbonizing the combustible solid waste in an N2 atmosphere for 2 hours; adding carbonized black solid powder and a proper amount of ferric trichloride into deionized water, stirring to uniformly mix, performing suction filtration, drying and calcining to complete loading, mixing the dried solid and a certain amount of sulfuric acid in a polytetrafluoroethylene kettle, and performing suction filtration and drying at 180 DEG C in a drying oven to obtain a hydrolysis catalyst; the high-efficiency cellulose hydrolysis method based on the catalyst comprises the following steps: mixing the catalyst and a certain amount of cellulose according to a certain mass ratio, placing the mixture in a hydrothermal reaction kettle, adding an organic solvent, completing a catalytic conversion reaction at a certain reaction temperature and heat preservation time, cooling to room temperature, taking out a solid-liquid mixture, and filtering to obtain a filtrate rich in furfural.

The invention discloses an anti-erosion organic ecological matrix layer slope ecological restoration method based on W-OH, and relates to the technical field of ecological restoration, and the method comprises the following steps: S1, material preparation; s2, preparing an organic ecological matrix, namely sequentially adding field soil, humus soil, an organic fertilizer, the pretreated grass seeds and a composite extracting solution into a stirrer, and uniformly stirring and mixing to obtain the organic ecological matrix; s3, slope covering; according to the method, the ecology of the slope can be quickly restored on the slope, and the structural stability of the slope is enhanced; according to the method, the surface of the side slope is mainly covered with the organic ecological matrix layer, multiple pretreated grass seeds are introduced, the pretreated grass seeds can germinate, root and grow in the organic ecological matrix layer, and therefore the effect of covering the organic ecological matrix layer is achieved, and the soil structure can be greatly enhanced.

The invention discloses a method for preparing a nickel-magnesium loaded biochar-based bifunctional material: after carbonizing the waste biomass material, the waste biomass material is placed in a sulfuric acid solution for washing, then washed with deionized water, filtered and dried to obtain carbonized biochar; the carbonized biochar is weighed according to the nickel loading amount of 20%-50%, added to the loading solution obtained by dissolving Ni(NO3)2·6H2O and Mg(NO3)2·6H2O in deionized water, and stirred, and the mixed solution is transferred to an oil bath pot to evaporate the water; the solid material is transferred to a crucible, and roasted at 550℃-650℃ for 1.5-2.5 h to obtain a nickel-magnesium loaded biochar-based bifunctional material. The raw material and preparation cost of the material are low, the preparation process is simple, the environment is friendly, and the material has rich pore structure, the adsorption and conversion of CO2 are significantly improved, and the methanogenic performance of the material at low temperature is greatly enhanced, and the material has excellent cycle performance, and can realize efficient flue gas CO2 capture and in-situ methanogenic.

According to this disclosure, there is provided a pyrolysis reaction system and a direct non-oxidative methane coupling process using the same by which it is possible to reach the selectivity for good C≤10 hydrocarbons and at the same time to inhibit coke from being generated while a good methane conversion is maintained during direct conversion of methane into C2+ hydrocarbons through non-oxidative pyrolysis.

The invention discloses a biomass gasification furnace, which belongs to the technical field of biomass gasification and comprises a tank body, a drying layer, a pyrolysis layer, a reduction layer and an oxidation layer are arranged in the tank body, and biomass raw materials are converted into combustible gas through the four reaction stages. A reaction cylinder with a double-layer structure is arranged in the tank body, the outer layer is a heat conduction cylinder, the inner layer is a ventilation cylinder, and a gas storage chamber is arranged between the heat conduction cylinder and the ventilation cylinder and used for collecting combustible gas. The heat conduction cylinder has good heat conduction performance, and the ventilation cylinder allows gas to pass through smoothly. On the periphery of the heat conduction cylinder, high-temperature gas is injected to transfer heat to the drying layer, the pyrolysis layer and the reduction layer. External heating is achieved through the heat transfer chamber in the interlayer of the tank body and the spiral channel of the heat conduction cylinder, and hot air enters the heat transfer chamber and the air outlet cavity from the bottom of the tank body to heat the interior of the reaction cylinder. Internal heating is realized through vent holes and a ventilation net in the rotating rod, and hot air is conveyed to the drying layer, the pyrolysis layer and the reduction layer, so that the reaction rate is increased.

Provided is a method of catalytic hydrogenation and reduction with which a catalytic hydrogenation and reduction reaction can be performed at a high inversion rate. A method of catalytic hydrogenation and reduction in which a reactive substrate and a hydrogen source are brought into contact in the presence of a platinum-group metal-supported catalyst to run the reactive substrate through catalytic hydrogenation and reduction, wherein: the platinum-group metal-supported catalyst comprises an ion exchanger supporting platinum-group metal ions, platinum-group metal complex ions, and / or platinum-group metal nanoparticles having an average particle size in the range of 1-100 nm; the ion exchanger is made of a continuous skeleton phase and a continuous hole phase; the thickness of the continuous skeleton is in the range of 1-100 µm; the average diameter of the continuous holes is in the range of 1-1000 µm; the total pore volume is in the range of 0.5-50 mL / g; the ion exchange capacity per unit weight in a dry state is in the range of 1-9 mg eq / g; and the ion exchanger is a non-particulate, weakly basic, organic porous ion exchanger where an ion exchange group is distributed in the ion exchanger.