32results about How to "High price" patented technology

The present invention relates to a sparse planting method of pineapple sugar-apple fruit in dry and hot valley areas, and belongs to the technical field of fruit tree cultivation. The present invention comprises the following steps: S1, constructing a water platform land according to the topography in the dry and hot valley areas; S2, mixing sheep manure, lime and tobacco leaves in a ratio of 15-20:1:3 to improve the soil of the water platform land; S3, using seedlings to sparsely plant along the contour line in the quasi-water platform land, and timely spray irrigation; S4, in February of the second year after the survival of the seedlings, scion grafting, sheep manure, lime, tobacco leaves, calcium magnesium phosphorus, and compound fertilizer are applied 4 times in the four seasons of each year, and the young tree shape is arranged in combination with windproof measures, and a regular and full tree crown is cultivated; S5, when the seedlings begin to bear fruit, combined with soil reform fertilization, production period adjustment, artificial pollination, fruit period management, fruit bagging, fruit harvesting management and pest control are carried out in batches. The present invention greatly improves the yield and quality of pineapple sugar-apple fruit in dry and hot valley areas, and improves the slope utilization value of dry and hot valley areas.

The invention relates to a multi-band laser confocal silicon carbide crystal ingot processing device and method, the multi-band laser confocal silicon carbide crystal ingot processing device comprises an objective table and a laser assembly, the laser assembly comprises a first laser, a second laser, a first reflecting mirror, a second reflecting mirror and a laser focusing mirror, the second wavelength laser and the second wavelength laser reflected by the second reflector and emitted by the second laser device are output in a common light path mode, and a to-be-machined crystal ingot on the objective table is machined through the laser focus lens; the objective table comprises an X-axis moving module, a Y-axis moving module, a C-axis module and a B-axis module, the C-axis module is used for driving the to-be-machined crystal ingot to rotate around the vertical center axis of the to-be-machined crystal ingot, and the B-axis module is used for driving the to-be-machined crystal ingot to swing in the vertical plane. The device can improve the laser processing efficiency, can cut the cylindrical crystal ingot, is simple in structure, easy to operate and control, low in cost and particularly suitable for cutting the silicon carbide crystal ingot with large thickness, high hardness and high precision.

The invention discloses a three-dimensional protective bamboo composite sleeper and a manufacturing method thereof. The manufacturing method comprises the steps that S1, raw bamboos are processed into radial bamboo skin units; s2, the radial bamboo skin units which are not subjected to rolling or rolling treatment are subjected to glue applying treatment, and after glue draining, the radial bamboo skin units are dried to obtain glue; s3, the glued and dried radial bamboo skin units are assembled and pressed, and a pressed blank is obtained; s4, the pressed blank is cured, and a bamboo sleeper blank is obtained; s5, the bamboo sleeper blank is machined into the target size and shape, and a bamboo sleeper base body is obtained; and S6, the bamboo sleeper base body is directly subjected to protection treatment without nicking treatment, and the three-dimensional protection bamboo composite sleeper is obtained. The radial bamboo skin units which are not subjected to rolling or rolling treatment are used as raw materials, gaps are formed between the radial bamboo skin units during assembly and pressing, protective paint can permeate conveniently, the protection durability is improved, the cost is reduced, protection treatment is not needed after special nicking treatment, and the manufacturing process is simpler.

The invention relates to the technical field of solid waste resource utilization, in particular to an anti-corrosion and flame-retardant alkyd primer and a preparation method thereof, and solves the problems that phosphorus-rich high manganese steel slag powder cannot be utilized on a large scale with high added value in the prior art; the content of P2O5 or MnO in common steel slag is low, and the processed steel slag has certain corrosion resistance and does not have flame retardance (non-high temperature resistance); most conventional anticorrosive fillers are iron oxide red powder, and the iron oxide red powder gradually becomes a main raw material of a new energy battery at present, so that the iron oxide red powder for the anticorrosive fillers is low in yield and high in price; and phosphorus-rich high-manganese steel slag or general steel slag has strong alkalinity, so that the alkyd resin can be quickly condensed. The problems are solved, so that the production cost of the existing single-component alkyd primer is reduced, the integration of corrosion resistance and flame retardance of the single-component alkyd primer is realized, and meanwhile, the phosphorus-rich high-manganese steel slag powder is fully utilized to realize high additional value and carbon reduction targets.

This invention relates to a nickel-plated steel sheet with excellent corrosion resistance for battery casings and a method for manufacturing the same. In one specific embodiment, the nickel-plated steel sheet comprises: a base steel sheet; a nickel plating layer formed on at least one surface of the base steel sheet; and a nickel-iron diffusion layer formed between the base steel sheet and the nickel plating layer. The nickel plating layer and the nickel-iron (Ni-Fe) diffusion layer are formed by heat treatment after forming an electroplated nickel layer on the base steel sheet and a chemically plated nickel layer on at least a portion of the surface of the electroplated nickel layer. The nickel plating layer contains one or more vacancy elements selected from phosphorus (P), boron (B), tungsten (W), cobalt (Co), molybdenum (Mo), and copper (Cu) on its surface.

The embodiment of the utility model discloses a rotor structure and a motor. The rotor structure comprises a rotor core and a sheath layer. The sheath layer is wound on the rotor core and wraps the outer circumferential surface of the rotor core in the circumferential direction, the sheath layer is arranged in a segmented mode in the axial direction, and a sheath gap is formed between the side edge of a single segment of the sheath layer or between every two adjacent segments of the sheath layer; wherein the sheath layer is made of a fiber material. According to the rotor structure, the section-shaped annular sheath structure is formed by wrapping the sheath layer, and tension control is applied to the fiber material in the wrapping process, so that pressure stress is formed on the surface of the rotor iron core after the annular sheath structure is formed, and the rotor iron core has certain prestress, so that the iron core has the capability of resisting larger centrifugal force; the maximum working speed of the rotor is improved. Besides, compared with a sleeve-shaped structure, the sheath layer arranged in a segment shape can ensure that pressure stress is formed on the surface of the rotor iron core, and can save production cost at the same time.

The invention provides a preparation method and application of cocoa shell color. The preparation method comprises the following steps: crushing cocoa shells, immersing the crushed cocoa shells into a container filled with mixed enzymatic hydrolysate, carrying out enzymolysis in a constant-temperature dark place, filtering, adding alkali liquor, regulating the pH value, carrying out centrifugal separation, heating and concentrating, regulating the pH value, filtering and sterilizing, and drying to obtain a cocoa shell color finished product. The mixed enzymatic hydrolysate is an aqueous solution of cellulase RS, hemicellulase and macerozyme R10. The production efficiency of the cocoa shell color is high, the operation process is simple and convenient, the production cost is low, pollution is avoided, the black brown or dark brown high-purity cocoa shell color powder with the color value larger than 50 can be stably obtained, the stability of the cocoa shell color is good, and the cocoa shell color powder can be used for adding food pigments.

This invention provides a road petroleum asphalt-based hard-soft carbon composite material, the raw materials of which include road petroleum asphalt, light component small molecule stabilizer, heavy component small molecule oxidant, activator, and solvent; and the ratio of road petroleum asphalt:solvent:light component small molecule stabilizer:heavy component small molecule oxidant:activator is 1:15-25:0.05-0.2:0.05-0.2:2-5, calculated in g / mL / g / g / g. Furthermore, this invention also provides a method for preparing the aforementioned hard-soft carbon composite material, which includes the following steps: crosslinking treatment of the light component, crosslinking treatment of the heavy component, activation, and carbonization. This invention solves the problem in the prior art where the high price or low carbon yield of hard carbon precursors, high cost of oxidants, or complex overall formulations lead to high costs for the prepared asphalt-based sodium-ion battery anode carbon materials. The hard-soft carbon composite material of this invention not only has a lower cost but also combines the advantages of both hard and soft carbon, exhibiting high sodium storage capacity, high reversible specific capacity, high initial charge-discharge efficiency, and good cycle performance.

This invention provides a recombinant transmembrane human tumor necrosis factor expressed in alfalfa. ‑α This method belongs to the field of biotechnology. This invention constructs a transmembrane human tumor necrosis factor... ‑α A plant binary expression vector for the gene is used, and then Agrobacterium-mediated transformation of the recipient alfalfa containing this plant binary expression vector is employed to prepare recombinant transmembrane human tumor necrosis factor. This invention utilizes alfalfa as a substrate plant for recombinant human tumor necrosis factor, providing a platform for recombinant transmembrane human tumor necrosis factor production. ‑α This provides an excellent cell system for expression, catering to the market demand for recombinant transmembrane trimeric tumor necrosis factor. ‑α This provides a new solution to the needs.

This invention discloses a shaped bottle filling production system, including a base, a conveying mechanism mounted on the base, and a front weighing station, a filling station, a rear weighing station, and a capping station arranged sequentially along the conveying direction of the conveying mechanism. The conveying mechanism has multiple bottle holders arranged at intervals along the conveying mechanism, each bottle holder for holding a group of shaped bottles. The base also has a weighing device, and a transfer device connects the weighing station and the weighing device. The conveying mechanism conveys intermittently for a predetermined time, advancing the distance of one bottle holder each time. A shaped bottle filling production method is also disclosed, using the shaped bottle filling production system, including the following steps: bottle placement; front weighing; filling; rear weighing; and capping. This shaped bottle filling production device and method has advantages such as short total downtime, high working efficiency, and low production cost.

The utility model provides a particle material leveling and color enhancing double-roller extruder which is characterized in that a machine base is arranged on the ground, a leveling and color enhancing double-roller extruding device and a double-roller driver are arranged above the machine base, and a discharging device is arranged in the machine base; sliding grooves and supporting plates are arranged on two side plate surfaces of the box body, sliding blocks are arranged in the sliding grooves, adjusting screw rods are screwed into screw holes of the supporting plates, a plurality of groups of leveling and color enhancing rollers are supported on the two side plate surfaces of the box body and the sliding blocks, each group of the leveling and color enhancing rollers is provided with a plurality of S-shaped grooves, and the extending ends of the leveling and color enhancing rollers are inserted into driving holes for driving the rollers. The two ends of a discharging auger of the discharging device are supported at the end parts of a discharging hopper and a discharging pipe; a shaft of the discharging auger penetrates through the extending end of the discharging hopper and is connected with a discharging driver; a magnetic impurity removal device and a double-helix material distribution device are arranged in the magnetic impurity removal and double-helix material distribution bin; the bin is mounted on the leveling and hyperchromic double-roller extrusion device; and shafts of the double-helix material distribution device and the magnetic impurity removal device penetrate through extending ends of vertical plates of the bin and then are connected with a material distribution driver. According to the utility model, fragments are flat, color value is high, and raw material feeding is smooth.

The invention belongs to the field of immunological detection, and provides an anti-human immunoglobulin lambda type light chain antibody 6B6 and application thereof. The monoclonal antibody 6B6 with good specificity and stability is obtained after fusion screening is conducted on natural human IgG and immune mice, the monoclonal antibody 6B6 can specifically recognize human immune globulin lambda type light chains, the antibody is verified through an immunoblotting method, and the antibody 6B6 shows good specificity and sensitivity. In addition, the human IgG-Fc is purified by using the antibody, and related reagents and kits for purifying the human IgG-Fc can be developed subsequently. The monoclonal antibody can also be used as a detection raw material for medical diagnosis, and has a good application prospect in detection of human immune globulin (especially a human immune globulin lambda type light chain).

The present invention relates to the field of polyethylene, and discloses a method for preparing polyethylene using intermittent production equipment, the method comprising: in the presence of propane and a catalyst, ethylene and a comonomer are contacted in a polymerization kettle for polymerization reaction; wherein, during the polymerization reaction, samples are taken from the polymerization kettle for analysis at regular intervals to obtain the content ratio of ethylene to comonomer in the polymerization kettle, and the content ratio is transmitted to a comonomer feeding system; the comonomer feeding system adjusts the feed amount of the comonomer according to the content ratio, so that the content ratio of ethylene to comonomer in the polymerization kettle is maintained within a predetermined range. The method can effectively solve the problem that it is difficult to adjust the density of polyethylene resin in intermittent production of ultra-high molecular weight polyethylene devices, and effectively improve the utilization rate and economic benefits of production equipment.

The invention discloses a pesticide-free vegetable planting method based on a fruit and vegetable symbiosis mode. The pesticide-free vegetable planting method comprises the following steps: S1, selecting and transforming a greenhouse; s2, leaf vegetable variety selection; s3, soil management; s3, seedling transplantation; s4, water and fertilizer management; s5, managing plant diseases and insect pests; and S6, harvesting. Through a fruit and vegetable symbiosis mode, the temperature in the greenhouse is reduced through fruit tree shading and opening of the greenhouse roof, appropriate environmental conditions are provided for leaf vegetable growth, meanwhile, physical prevention and treatment means such as insect-proof nets and yellow blue plate hanging are combined, the incidence rate of diseases and pests is effectively reduced, pesticide use is reduced, and the safety and quality of agricultural products are improved; through nourishing of sunshine, rain and dew, the taste is better, and the quality is higher; according to the planting method, a pesticide-free planting method is adopted, the greenhouse space is fully utilized, the land utilization efficiency is improved, the safety and the quality of agricultural products are improved, meanwhile, the planting cost is reduced, and meanwhile the selling price and the market competitiveness of the leaf vegetables are improved.

The invention belongs to the field of edible mushrooms, and particularly discloses a Morchella sextelata strain Qian DL02 which is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number of the Morchella sextelata strain is CCTCC NO: M2022899. The invention further discloses application of the Qian DL02 in the fields of food, beverages and the like. The ascotums of the strain Qian DL02 are light brown, the mushroom shape is good, and the commodity value is high; in addition, the strain also has the advantages of short cultivation period, high yield, strong heavy metal chromium stress resistance and the like.

The utility model discloses a display module and a display device, the display module comprises a light source assembly and a shell, the light source assembly comprises a circuit board assembly and lamp beads electrically connected with the circuit board assembly, the shell is made of heat conduction plastic, the shell wraps the circuit board assembly, and at least the lamp beads are exposed outwards. Due to the fact that the heat conduction plastic has good heat conduction performance, heat generated by the circuit board assembly can be effectively conducted and dissipated, the working temperature of the LED assembly can be reduced, heat accumulation can be reduced, and the stability and reliability of a system can be improved, the shell is made of the heat conduction plastic, the shell can wrap the circuit board assembly, and the service life of the shell is prolonged. Therefore, the contact range of the shell and the circuit board assembly is increased, the shell can conduct heat of the circuit board in time, meanwhile, the heat dissipation area of the shell can be enlarged, heat is prevented from being gathered in the shell, the heat dissipation capacity of the display module is improved, and the problem that an existing display screen lamp panel is insufficient in heat dissipation is solved.

The present invention belongs to the field of molecular biotechnology and molecular marker technology, and specifically relates to a molecular marker related to the backfat thickness trait on chromosome 17 of pigs and its application. The SNP site of the molecular marker related to the backfat thickness trait on chromosome 17 of pigs corresponds to the G>A mutation at 36543568bp on chromosome 17 of the international pig reference genome version 11.1. The molecular marker is detected by whole genome association analysis and found to significantly affect the pig backfat thickness trait. The present invention also provides a primer pair and a kit for detecting the molecular marker. The molecular marker and the primer pair can be used to establish an efficient and accurate molecular marker-assisted breeding technology, which is applied to the genetic improvement of the backfat thickness trait of breeding pigs, thereby reducing the backfat thickness of pigs, increasing the lean meat rate of pigs, increasing corporate profits, and increasing core competitiveness.

The utility model discloses a vertical carbonization furnace, which relates to the field of carbonization furnaces and comprises a furnace body comprising a carbonization section, a preheating section arranged at the upper part of the carbonization section, a cooling section arranged at the lower part of the carbonization section, a high-temperature gas inlet channel arranged at an outlet of an incinerator and connected with the lower part of the carbonization section, and a raw gas recovery pipe arranged at the top of the carbonization section, the raw gas recovery pipe is connected with the incinerator, the carbonization section comprises a plurality of high-temperature flue gas ducts, a plurality of material channels and raw gas ducts are clamped between every two high-temperature flue gas ducts, the material channels and the raw gas ducts are sequentially arranged in groups, a plurality of partition plates are arranged between the material channels and the raw gas ducts, and a raw gas overflow channel is arranged between every two partition plates. According to the utility model, the material channel, the raw gas channel and the high-temperature flue gas channel are divided, and carbonized materials are heated through thermal radiation, so that the maintenance cost of the incinerator body and the incinerator is reduced. According to the utility model, crushed aggregates can be adopted for carbonization, so that the production cost of a user is greatly reduced, and economic benefits are improved.

The present invention discloses a photovoltaic module and a photovoltaic power grid utilization rate improvement system, which relates to the field of photovoltaic equipment technology, including a reflective bottom plate parallel to the ground and a reflective side plate perpendicular to the reflective bottom plate, a plurality of parallel thin-film double-sided photovoltaic panels are connected to the reflective side plate through a memory alloy plate, each thin-film double-sided photovoltaic panel is perpendicular to the reflective bottom plate and the reflective side plate, each memory alloy plate includes two memory alloy sheets riveted into one, and the two sides of the thin-film double-sided photovoltaic panel are respectively connected to a memory alloy sheet, and a plurality of slides are slidably connected to the reflective side plate, and a rotating bar is rotatably connected to each slide. In the present invention, the structural arrangement of the photovoltaic module is changed to achieve an increase in power generation in the morning and afternoon and a decrease in power generation at noon, so that the consistency of the photovoltaic power generation curve of the photovoltaic module with the power grid demand is improved from the source, the power quality of photovoltaic power generation and the safety of access to the power grid are greatly improved, and the photovoltaic grid price and power grid utilization efficiency are greatly improved.

The invention provides an electronic paper TFT GOA drive design scheme, and relates to the technical field of electronic information, the electronic paper TFT GOA drive design scheme comprises a gate shift register integrated on a TFT, the gate shift register is composed of ten transistors and two capacitors, and each transistor and each capacitor form a logic circuit through a specific line connection mode. A gate shift register formed by ten transistors and two capacitors forms a GOA structure, the distribution and connection relation of the transistors and the capacitors in the GOA structure follow a specific design rule, and in a traditional electronic paper TFT non-GOA design scheme, the gate shift register is integrated on a DDIC, so that the DDIC is large in size and small in output quantity, and the production cost is indirectly increased. According to the invention, the grid shift register is integrated on the TFT, so that the DDIC size is greatly reduced. By taking 960S * 680G resolution as an example, the size of the GOAIC can be reduced by 38.5% compared with that of a non-GOAIC, and the output quantity of DDICs can be increased under the condition that the size of a wafer is fixed, so that the purchase cost of the DDICs is remarkably reduced.

The invention relates to the technical field of fluorescent probes, and provides an O-probe carbon quantum dot fluorescent probe as well as a preparation method and application thereof in order to solve the problems of insufficient synthesis, stability, environmental adaptability and selectivity of an organic small molecule fluorescent probe in the prior art. The preparation method comprises the following steps: by taking rhodamine B and dimethylaminothioformyl chloride as raw materials, adding absolute ethyl alcohol, carrying out ultrasonic dissolution to obtain a mixed solution, carrying out heating reaction in a high-pressure kettle, carrying out column chromatography separation, collecting the obtained liquid with orange fluorescence, and carrying out rotary evaporation to finally obtain the O-probe carbon quantum dot fluorescent probe. The O-probe carbon quantum dot fluorescent probe has good selectivity on HClO, and the fluorescent probe with remarkable color change before and after responding to HClO is also widely applied to an anti-counterfeiting technology. In the anti-counterfeiting technology, the O-probe carbon quantum dot fluorescent probe and the multi-color CQDs are combined and applied to manufacturing of the textile anti-counterfeiting two-dimensional code, the fluorescence characteristic of the carbon quantum dots is fully utilized, and anti-counterfeiting is achieved.

The invention belongs to the field of edible mushrooms. In particular to a Morchella sextelata strain Guizhou DL04 which is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number of the Morchella sextelata strain is CCTCC NO: M2022900. The invention also discloses application of the strain. The invention provides a novel morchella sextelata strain, and the variety of morchella sextelata is enriched; the ascotums of the strain are light brown, the mushroom shape is good, the commodity value is high, and the strain has the advantages of being high in yield, short in cultivation period, high in arsenic stress resistance and the like.

The present invention relates to the field of resins, and discloses a method for preparing polyethylene intermittently, which can adjust the density of polyethylene resin, including: the method includes: in the presence of carbon four saturated alkanes and catalysts, ethylene and alpha-olefins are contacted in a polymerization kettle for polymerization reaction; wherein, during the polymerization reaction, sampling and analysis are performed from the polymerization kettle at regular intervals to obtain the content ratio of ethylene to alpha-olefins in the polymerization kettle, and the content ratio is transmitted to the alpha-olefin feeding system; the alpha-olefin feeding system adjusts the feed amount of alpha-olefins according to the content ratio, so that the content ratio of ethylene to alpha-olefins in the polymerization kettle is maintained within a predetermined range; wherein, alpha-olefins do not include ethylene. The method can effectively solve the problem that it is difficult to adjust the density of polyethylene resin in an intermittent production ultra-high molecular weight polyethylene device, and improve the utilization rate and economic benefits of the production device.

The utility model relates to the technical field of agricultural product sorting, in particular to a taro sorting device which comprises a group of first conveying devices, four groups of second conveying devices, a first material receiving frame, a second material receiving frame, an inclined plate, a controller and a telescopic motor, the first conveying device comprises a first conveying belt and an intelligent identification instrument, the second conveying device comprises a second conveying belt, an electronic scale and an arc-shaped material disc, the intelligent identification instrument and the electronic scale are connected with an external computer through a controller, and telescopic motors in the pushing structure are connected with the external computer through the controller. According to the sorting device, the first conveying device and the second conveying device are adopted to sort potatoes according to the quality and the size respectively, meanwhile, the taste of the potatoes can be sorted to a certain degree, the henry steudnera tubers with higher starch content are sorted out, follow-up selling is facilitated, and the selling price can be relatively higher.

The invention relates to a method for treating a byproduct hydrogen chloride in a production process of acetochlor and / or butachlor. The treatment method comprises the step of treating hydrogen chloride by using vaporized methanol. According to the treatment method disclosed by the invention, a byproduct hydrogen chloride gas generated in the process of producing acetochlor and butachlor is solved, a new product chloromethane is also generated, and ammonium chloride which is low in price and relatively strong in corrosivity is replaced. Chloromethane is an important organic compound, and due to special chemical properties and wide application requirements of chloromethane, compared with ammonium chloride, the market demand of chloromethane is larger, and the price of chloromethane is higher. The treatment method disclosed by the invention is high in safety, high in byproduct value, suitable for large-scale industrial production and wide in application prospect.

This invention discloses a structural variation molecular marker on chromosome 5 of pigs that affects the weight of subcutaneous abdominal fat and its application. The structural variation molecular marker is a DNA fragment inserted after the 66120412 bp site on chromosome 5 corresponding to the International Pig Reference Genome Version 11.1; the nucleotide sequence of the DNA fragment is shown in SEQ ID NO:1. The structural variation molecular marker provided by this invention is significantly correlated with the trait of subcutaneous abdominal fat weight in pigs. By identifying this structural variation molecular marker, the trait of subcutaneous abdominal fat weight in pigs can be identified. Furthermore, by selecting individuals carrying the structural variation molecular marker during the breeding process, the subcutaneous abdominal fat weight of offspring pigs can be reduced, and the lean meat percentage of offspring pigs can be increased.

The invention relates to an amide crude oil steam stripping process and device. The specific process comprises the following steps: (1) discharging dealcoholized amide crude oil to a flushing and steaming kettle; (2) introducing steam into the impact steaming kettle from the bottom of the impact steaming kettle, performing steam stripping, and collecting impurities separated in the steam stripping process into a receiving tank; (3) after the steam stripping is completed, carrying out decompression and heating dehydration operation in the flushing and steaming kettle, and collecting impurities separated in the dehydration process into a receiving tank; and (4) discharging the dehydrated amide crude oil to a finished product tank to obtain the amide finished product crude oil. The quality of the amide crude oil is remarkably improved in a steam stripping mode, and the content of the amide crude oil is stabilized at 96% or above, so that the market competitiveness is enhanced, and the selling price is favorably increased. Meanwhile, the steps of purification and dehydration are integrated in a single kettle, so that energy is saved, the operation time is shortened, the production process is simplified, the cost is reduced, the production efficiency is improved, and the method is suitable for industrial large-scale production.

The invention belongs to the field of A23L1 / 275, and particularly relates to water-soluble turmeric and a high-speed emulsification preparation process thereof. The water-soluble turmeric disclosed by the invention is prepared from the following raw materials: an emulsifier, a solvent and curcumin. Wherein the mass ratio of the emulsifier to the solvent to the curcumin is (5-10): (1-2): 1; the color value of the water-soluble turmeric is not less than 100. In the preparation process of the water-soluble turmeric, a heating assisted dissolution method is not adopted, but a high-speed emulsification embedding technology is selected, so that active components in the curcumin cannot be damaged, the storage stability of the product is further improved, and the product can be stored for more than 2 years at normal temperature.

The invention discloses a portable visual function screening instrument which comprises a lens bin, and lens cones are symmetrically installed on the two sides of the lens bin. The lens module switching system comprises a mounting main shaft, and a plurality of lens switching units are mounted on the mounting main shaft; a Worth4 point test lens module group, wherein the Worth4 point test lens module group comprises a red and green filter lens group and a Worth4 point sighting target lens group; the stereoscopic vision function detection lens module comprises a stereoscopic sighting target lens group and a polarizer group, the stereoscopic sighting target lens group is arranged at the rear end of the lens cone, and the polarizer group is arranged at the front end of the lens cone; and the distance conversion lens module comprises two groups of distance conversion lens groups, and the two groups of distance conversion lens groups are respectively arranged at the middle positions in the two groups of lens cones. According to the invention, two modes of Worth four-point test and stereo vision detection are integrated, preliminary screening of simultaneous vision, fusion vision and stereo vision is covered, and the detection function is more comprehensive.