108results about How to "Yield impact" patented technology

The present invention provides a method for synthesizing 3-methyl-3-butene-1-ol. The method comprises the following steps: pressurizing a raw material, a formaldehyde methanol solution, to 15-22 MPa, heating to 150-200 DEG C, and continuously feeding the solution, in a spray form, into a reactor after achieving a near-critical state; and meanwhile pressurizing another raw material, isobutylene, to 15-22 MPa, heating to 220-300 DEG C and continuously feeding into the reactor. The raw material formaldehyde methanol solution and the raw material isobutylene react in the reactor under conditions of temperature of 220-300 DEG C and pressure of 15-22 MPa. According to the method for synthesizing 3-methyl-3-butene-1-ol provided by the present invention, occurrences of formaldehyde self-polymerization and disproportionation reaction are reduced, and the product yield is improved. The reaction rate is increased, and the reaction effect is improved.

The invention relates to an extraction technology of artemisinin, and belongs to the technical field of natural plant extraction. The extraction technology comprises the following steps: (1) drying raw materials: putting the raw materials in a drying facility to dry the raw materials; (2) primary preparation of artemisinin: putting the dried raw materials in an extraction tank, adding petroleum ether into the extraction tank, heating, carrying out reflux extraction, discharging the liquid extract from the extraction tank after the reflux extraction, allowing the liquid extract to stand still for a while, collecting the supernate, making the supernate go through a silica gel column, then washing the silica gel column by petroleum ether, collecting the fractions containing artemisinin, transferring the fractions to a condensing tank, condensing the fractions, transferring the condensed liquid to a crystallization tank when the liquid in the condensing tank start to crystallize, carrying out crystallization in the crystallization tank, filtering to obtain the crystals, and drying the crystals so as to obtain crude artemisinin; (3) artemisinin refinement: placing the crude artemisinin in an alcohol-precipitation tank, dissolving the crude artemisinin by ethanol with a concentration of 85-95%, wherein the volume of the ethanol is 60 to 70 times of that of the crude artemisinin, allowing the solution to stand still for a while, collecting the supernate, subjecting the supernate to fine filtration, transferring the filtrate to a condensing tank, condensing the filtrate, allowing the condensed filtrate to stand still so as to carry out crystallization, filtering to obtain the crystals, and finally drying the crystals in vacuum so as to obtain refined artemisinin.

The invention discloses a method for cultivating wheat for garden agriculture. (a) soaking wheat seeds in lime water for 3-5 hours, then rinsing them with clean water, and then soaking them in a circulating water bath at a constant temperature of 37°C for 3-5 days, the resulting The water bath is provided with an ozone generator, and when the glume of the seeds is whitish, it is pulled out, then put into 10% trisodium phosphate solution and soaked for 20 minutes, and then germinated after being washed with clear water; (b) soaking the seeds The seeds are placed in an environment of 25-28°C, and the air humidity is maintained at 75%; every 2-4h is ventilated for 7-10min; ozone is treated for 8-10min; after 10 hours, the ambient temperature is gradually reduced to 10°C. The invention adopts a unique fermentation process to prepare wheat base fertilizer. In the base fertilizer, inorganic selenium and organic selenium in biological straw are combined to keep selenium at low concentration and release slowly, which can promote long-lasting and effective absorption of selenium by plants.

The invention discloses a plant antidote. Diethyl aminoethyl hexanoate, vitamin C and various trace elements are taken as main ingredients and are prepared into the plant antidote. The plant antidote has the advantages that the phytotoxicity to crops generated by various pesticides is prevented, the immunological competence of the crops is increased, the vivotoxin of the crops is efficiently eliminated, the growth of the crops is quickly recovered, the development of a root system is boosted, the tillers and branches are increased, the maturing rate of fruit is increased and the yield and quality are increased.

The invention relates to a paddy field irrigation method for reducing the lead content of paddy, and belongs to the technical field of prevention and control of agricultural product heavy metal pollution. In a water control period, a living tree is transplanted to a tillering stage to control water after a paddy seedling is transplanted for 7 to 40 days, and is subjected to submerged irrigation in other stages to maintain the water layer to be between 5 and 10cm; the degree of water control is mild water control; in the view of soil appearance, the surface oil turns hard, but not turns to white, and is subjected to fine cracking; if the water content of soil is detected, the water content of soil is kept to be maximum water-holding capacity of about 80 percent (+/-5 percent); and the selection of paddy variety is as follows: the variety of japonica rice with weak capacity of absorbing Pb in soil is suited for selecting, while the variety of nonglutinous rice or hybrid rice with strong capacity of absorbing Pb in soil is unsuited for selecting. Compared with common whole growth period submerged irrigation in paddy practical production, the method has the advantage that the Pb content of paddy is reduced by 28.4 to 43.8 percent; and compared with the common method of controlling water 10 to 15 days before mature in the paddy practical production, the method has the advantage that the Pb content of the paddy is reduced by 57.6 to 69.1 percent.

The invention relates to a continuous preparation process of a phosphate flame retardant based on a micro-channel reactor, and belongs to the technical field of phosphorus-based flame retardant preparation. The process comprises the steps of mixing a catalyst and phosphorus oxychloride to obtain a mixed raw material, and respectively pumping the mixed raw material and an epoxy compound into the micro-channel reactor to perform continuous reaction, thereby obtaining the phosphorus-based flame retardant. According to the method, the mixed raw materials are directly introduced into the micro-channel reactor for reaction, the equipment is simple, the operation is convenient, continuous production can be achieved, the quality is stable, the yield is high, energy consumption is low, and safety is good.

The invention discloses a rice gene OsNF-YC4 and applications of the rice gene OsNF-YC4. The DNA sequence of an open reading frame of the rice gene OsNF-YC4 is shown as SEQ ID NO:1, and the amino acid sequence of protein encoded by the rice gene OsNF-YC4 is shown as SEQ ID NO:2. According to the invention, for the first time, the rice OsNF-YC4 gene is obtained from a rice genome through cloning, the functions of the rice OsNF-YC4 gene are verified, and meanwhile, a plant transgenic vector is utilized for realizing the overexpression of the rice gene OsNF-YC4 in strains OsNF-YC4-OE-8 and OsNF-YC4-OE-17 and the wild type (ZH11). The result shows that the strains with overexpression of the rice gene OsNF-YC4 provided by the invention become high, the grain width and the thousand seed weight are obviously increased, the stress resistance is obviously enhanced, and therefore, the rice gene OsNF-YC4 plays an important role in plant growth and regulation on the stress resistance, plays an important role in researching rice growth and stress resistance mechanism, and has the wide application prospect in crop breeding.

The invention discloses special selenium-rich fertilizer for jackfruit. The special selenium-rich fertilizer for the jackfruit is prepared from the following raw materials in parts by weight: 3 parts to 9 parts of urea humate, 3 parts to 9 parts of excrement and urea of livestock, 0.5 part to 1.5 parts of sodium perborate, 0.5 part to 1.5 parts of strain packets, 0.5 part to 1.5 parts of bio-enzyme, 4 parts to 12 parts of plant ash, 2 parts to 6 parts of agricultural rare earth, 2 parts to 4 parts of bentonite, 0.5 part to 1.5 parts of chitin, 1 part to 3 parts of calcium superphosphate, 1 part to 3 parts of ferrous sulfate, 1 part to 3 parts of potassium sulfate, 0.5 part to 1.5 parts of trace elements, 0.5 part to 1.5 parts of bacterial powder of photosynthetic bacteria, 1 part to 3 parts of sodium selenite, and 1 part to 3 parts of selenium yeast. According to the special selenium-rich fertilizer for the jackfruit disclosed by the invention, the yield of the jackfruit can be increased; the yield of the jackfruit cannot be affected too much even if the weather is bad; in addition, selenium elements are rich in the chemical fertilizer disclosed by the invention, the planted jackfruit is rich in nutrition, and meets the demand of people on nutrition, and therefore, the jackfruit is more preferred by people of all ages.

The invention discloses a preparation method of a 2,3,4-trisubstituted quinoline-N-oxide compound. The method comprises the following steps that under the effect of a cobalt catalyst, an additive and an oxidizing agent, a nitrone compound and an alkyne compound produce ring reaction in an organic solvent; after the reaction is completed, post treatment is performed to obtain the quinoline-N-oxide compound. The preparation method has the advantages that the use raw materials have wide resources; the method can be used for synthesizing the quinoline-N-oxide compound with various substitutional groups; important application values are realized.

The invention discloses extraction and preparation methods of a swim bladder collagen oligopeptide. The preparation method comprises the following specific steps: cleaning is conducted, specifically,a swim bladder is selected, cleaned, and crushed into small blocks, then a sodium hydroxide solution is added for soaking, washing is conducted with water till neutrality is achieved, then soaking isconducted through 5-10% of a n-butyl alcohol or isopropanol solution, washing is conducted with water till neutrality is achieved, and then slurry uniformizing is conducted for standby application; pretreatment is conducted, specifically, tannic acid is added into uniformized slurry, filtering is conducted, proteases are added under an alkaline environment for enzymolysis, and a mixture passes through a resin column; enzymolysis is conducted, specifically, the pH is adjusted, and 0.1-1.0% of compound proteases are added for enzymolysis; and purification is conducted, specifically, purificationcomprises membrane filtration, nanofiltration, concentration, sterilization and spray drying. According to the extraction and preparation methods, an extraction process is simple while the fishlike smell is effectively removed, and the swim bladder collagen oligopeptide is high in yield and good in quality.

The invention relates to the technical field of wheel hub processing, and discloses an aluminum alloy wheel hub heat treatment device that can effectively improve the yield, including a heat treatment furnace body, and two mounting blocks are fixedly installed on the top of the heat treatment furnace body. The blocks are fixedly equipped with pulleys, and the opposite side of the pulleys is fixedly installed with a fixed cross bar above the heat treatment furnace body. The bottom of the hanging block is fixedly installed with an installation frame, the inner cavity of the installation frame is fixedly installed with a hanging rod, and the front surface of the hanging rod is fixedly installed with a wheel hub ring located in the inner cavity of the heat treatment furnace. The heat treatment device for aluminum alloy wheels that can effectively improve the yield can effectively ensure that the overall installation frame is more stable when sliding on the slider, and will not derail and other situations, causing the wheels to fall off and fall, affecting the overall yield of the aluminum alloy wheels. question.

The invention discloses an irrigation method for reducing the arsenic concentration of rice in fields with severe arsenic pollution and belongs to the technical field of agricultural product heavy metal pollution prevention. According to the irrigation method for reducing the arsenic concentration of the rice in the fields with severe arsenic pollution, in the rice fields with severe arsenic pollution at a soil arsenic concentration o 100 mg/kg, a water controlling period covers the rice tillering period to the heading period of rice and 21 days after the heading period to the mature period, and in the others periods, submerging irrigation is performed, and the water layer is maintained to be 3-5 cm; the control level during the water controlling period is low; viewed from the outside, surface soil hardens and generates tiny cracks but not whitens; the soil water content is measured to be 75%-85% of the maximum water holding capacity. Compared with full-period submerging irrigation methods generally used during actual rice production, the irrigation method for reducing the arsenic concentration of the rice in the fields with the severe arsenic pollution can reduce the arsenic concentration by 58%-69%.

The invention discloses an encapsulating method of a multi-color-temperature COB (chip on board) light source. The method includes: welding inverted LED chips on default welding spots of a circuit board, and printing conductive silver slurry between jumper points of the circuit board to form a conductive silver slurry layer to form a complete conductive circuit. The printed conductive silver slurry can form the conductive silver slurry layer attached to the surface of the circuit board between the jumper points of the circuit board. Compared with a traditional suspending jumper structure, thestructure adopted in the method has the advantages that the conductive silver slurry layer is attached to the surface of the circuit board and has certain width, and the conductive silver slurry layeris more difficult to break than jumpers; the surface of the circuit board is free of structures of the jumpers, connecting lines and the like by the arrangement of the inverted LED chips, and influence of the jumper on the yield of the COB light source is completely avoided. The invention further provides the multi-color-temperature COB light source and has the same advantages as above mentioned.

The invention discloses a planting method for rotation planting and interplanting of Pennisetum sinese and ryegrass. The planting method comprises the following steps: soil preparation, base fertilizer application, planting, management, harvesting and overwintering for the Pennisetum sinese, interplanting and rotation planting for the ryegrass, management and harvesting for the ryegrass, etc.; thus, interplanting and rotation planting of the Pennisetum sinese and the ryegrass are realized. According to the invention, by adoption of manners of rotation planting and interplanting, annual ryegrass is used as supplementary forage for the gap periods after the last harvesting of the Pennisetum sinese and before the first reaping after germination of the Pennisetum sinese in the next year, and the annual ryegrass is planted in vacant lands among ridges after harvesting of the Pennisetum sinese, so the utilization efficiency of the lands is improved, and the supply of feed and forage for cattle and sheep in the gap periods of the Pennisetum sinese is supplemented. After harvesting of the Pennisetum sinese, 0.8 kg/mu of the annual ryegrass is sowed, and the predicted yield of the ryegrasscan reach 5000 kg/mu, so the shortage of the Pennisetum sinese can be well supplemented.

A yield estimating method for a continuously produced coiled material is provided. The method includes 1) a step of AOI detection, namely a step of performing non-contact real-time detection on each coil of the film material with an AOI device; 2) a step of AOI detection data extraction; 3) a step of data pretreatment, namely a step of unpacking the AOI detection data, and extracting data list heads to obtain needed defect information; 4) a step of data filtering; 5) a step of data section splitting, namely a step of, through a program, subjecting the coiled material to section splitting according to a section dimension and direction of an actual sheet-shaped finished product, and making a split diagram in one-to-one correspondence with an actual situation; and 6) a step of calculating thesplit diagram obtained in the step 5) to obtain an estimated yield high in accuracy. The estimated yield is high in accuracy and high in reliability, and is adopted as feedback data to improve the production quality and increase the product yield. The method has no influence on the yield of the coiled material through the non-contact detection, and sampling is not needed so that consumption is avoided.

The invention relates to an injection molding method for a polymer rubber plate. A polymer rubber plate injection molding device is adopted, and comprises a bottom rack, a molding plate, a molding workbench, a vibrating mechanism, an adjusting mechanism and a feeding mechanism. According to the injection molding method, the problems existing in the injection molding process of the polymer rubber plate can be solved: a, in the traditional injection molding process of the polymer rubber plate, the size of a mold is fixed; if the specifications of the polymer rubber plates required for production are different, molds with different specifications are needed, and the molds need to be frequently replaced in the traditional injection molding process; the production cost is high, and the process is complex; b, in the traditional injection molding process of a molecular rubber plate, only a single polymer rubber plate can be subjected to injection molding, the yield is low; in the traditional injection molding process of the molecular rubber plate, the demolding efficiency is low, and the injection molding efficiency is low; and the yield of the polymer rubber plate is influenced.