403results about How to "Speed up entry" patented technology

The invention provides a highway pavement asphalt waste recycling device which comprises a table body, a screening box is arranged at the top of the table body, a crushing box is arranged at the top of the screening box, a feeding port is formed in the top of the crushing box in a penetrating mode, and a first crushing mechanism is arranged in the feeding port; a first smashing roller set and a second smashing roller set which are in linkage with the first smashing mechanism are rotationally arranged in the first material returning opening and the second material returning opening correspondingly. When the asphalt waste crushing device is used, asphalt waste is fed into the feeding port through the feeding machine, the driving mechanism drives the first crushing mechanism to operate, the asphalt waste is crushed, the crushed asphalt falls into the screening box, and large-particle asphalt fragments are discharged to the two sides through the screening box and fall into the inclined groove; according to the device, asphalt fragments are conveyed to the corresponding first material returning opening and the second material returning opening through the crushed material returning mechanism, secondary crushing is conducted through the first crushing roller set and the second crushing roller set, the device does not need to be stopped for waiting, continuous crushing of asphalt waste is achieved, and the crushing and recycling efficiency is improved.

The invention discloses an adsorption heat storage material with a multi-stage stepped pore structure and a preparation method of the adsorption heat storage material, according to the material, a metal foam matrix is combined with the multi-stage pore structure, and the storage and release efficiency of heat energy is remarkably improved. Specifically, the metal foam matrix is composed of a plurality of metal foam layers with different porosities, and the porosities are gradually increased in the heat source direction, so that the heat resistance is effectively reduced, and the diffusion of adsorbate is accelerated. The adsorbent coating is coated with an adsorption material mixture containing a template agent, and is subjected to drying and roasting treatment to form a multi-stage pore structure comprising macropores, mesopores and micropores, so that the adsorption diffusion speed and the adsorption capacity are improved. The material not only improves the heat energy storage and energy release capabilities, but also optimizes the diffusion rate of adsorbate. According to the preparation method, through simple and convenient processes such as splicing of the metal foam layer and coating of the adsorbent, the production cost is reduced, the preparation process is efficient and controllable, and wide application prospects are achieved.

The utility model discloses a purifying and heating all-in-one machine which is provided with a raw water inlet and comprises a filtering unit with a filter element; the heating device comprises a heating cavity and a heating body, a water inlet of the heating cavity is communicated with the pure water outlet of the filtering unit, and the heating cavity is provided with a reflux inlet for discharging hot water to the filtering unit; the cooling device comprises a water storage cavity, and the raw water inlet is communicated with the filtering unit through the water storage cavity; one end of the backflow pipeline is communicated with the backflow opening, the other end of the backflow pipeline is communicated with a fluid path between the water storage cavity and the filtering unit, and at least partial area of the backflow pipeline is arranged in the water storage cavity in a penetrating mode. According to the heat purifying and purifying all-in-one machine, hot water which is not taken for a long time and needs to be emptied can flow back to the filtering unit to be filtered and reused, water resources can be saved, water flow waste is reduced, the emptied hot water participates in heat exchange, heat damage to the filtering unit due to the fact that the water temperature is too high is avoided, and the service life of the filtering unit is prolonged. And the water production capacity and the anti-freezing performance of the filtering unit can be improved.

The invention relates to the technical field of screening equipment, and provides a dewatering screen for sand-mud separation, the dewatering screen comprises a base, a screen box and a vibration motor, the screen box is mounted on the base through a plurality of rubber springs, and the vibration motor is mounted on the screen box; a first-level screen and a second-level screen are arranged in the screen box from bottom to top in a supporting mode, and meshes of the second-level screen are smaller than those of the first-level screen. A first muddy water collecting tank is arranged on the base, and a swirler is further arranged on the base in a supporting manner; a cyclone bottom flow port is located above the feeding end of the second-stage screen, a first slurry pump is arranged on one side of the first muddy water collecting tank, the water inlet end of the first slurry pump is communicated with the first muddy water collecting tank, and the water outlet end of the first slurry pump is communicated with a tangential feeding port of the cyclone. According to the recycling device, small-particle-size gravel in muddy water generated by the dewatering screen is recycled, and resource waste is effectively reduced.

The invention relates to the technical field of cell filtration, and discloses a cell filter facilitating separation and filtration and a filtration method thereof.The cell filter comprises a main body, a fixing ring is fixedly connected to the interior of the main body, a cross-shaped spring frame is slidably connected to the outer surface of the fixing ring, and a conical spiral block is fixedly connected to the top of the cross-shaped spring frame; three fixing frames are fixedly connected to the side, away from the conical spiral block, of the cross spring frame, the three fixing frames are arrayed circumferentially with the conical spiral block as the center, and C-shaped rings are fixedly connected to the sides, away from the conical spiral block, of the three fixing frames. Meanwhile, when the air injection ring irregularly shakes, cell sap on the inner wall of the bottom of the main body can be continuously disturbed, so that cells and solutes in the cell sap can be more uniformly distributed on the surface of the filter screen, and the condition that the filtering resistance is too large due to local cell accumulation is avoided, so that the filtering effect is improved.

The invention discloses a lithium battery cell assembling and transforming device, and relates to the technical field of assembling equipment, the lithium battery cell assembling and transforming device comprises a rack, an assembling mechanism and a conveying mechanism, the assembling mechanism comprises a rotary workbench, an annular material receiving platform is fixedly installed on the outer side of the rotary workbench and close to the top, and a magnetic block is installed on the top of the annular material receiving platform; the conveying mechanism comprises a right-angle frame, a driving roller is rotationally installed at the end, away from the driven roller, of the top of the right-angle frame, and the end, away from the driven roller, of the top of the right-angle frame is fixedly provided with a supporting leg. A servo motor is installed on the outer side of the right-angle frame and close to the driving roller, and a pushing assembly is installed on the outer side of the right-angle frame and close to the driven roller. According to the lithium battery cell assembling and transforming device, the anti-deviation effect is achieved, the influence of vibration is reduced, overall operation is stable, deviation is not prone to occurring, and assembling is convenient, safe and reliable.

The invention relates to an anti-aging composition, a skin care product and a preparation method of the anti-aging composition and the skin care product. The anti-aging composition is prepared from the following components in parts by weight: 0.05 to 0.20 part of collagen, 0.05 to 0.20 part of elastin, 0.10 to 3.00 parts of water lily flower extract, 0.50 to 2.20 parts of folium mori extract, 0.50 to 2.40 parts of rhizoma dioscoreae extract and 1 to 10 parts of beta cyclodextrin. Compared with the prior art, the water lily extract, the mulberry leaf extract and even elastin have the capability of scavenging free radicals, and the Chinese yam extract has the capability of activating human body to synthesize collagen, so that the anti-aging effect is very remarkable through the synergistic interaction of the water lily extract, the mulberry leaf extract and even elastin; external supplement of collagen is matched with an internal synthesis effect, so that the collagen accumulation speed in the skin is greatly increased, the number of wrinkles is effectively reduced, and the anti-aging effect is improved.

The invention relates to application of an antioxidant liposome in preparation of a medicine for preventing and / or treating inner ear injury caused by active oxygen accumulation, and belongs to the field of medical technologies and biological medical materials. The antioxidant lipidosome is rutin-entrapped lipidosome, and the inner ear injury is preferably cis-platinum induced inner ear injury. The antioxidant liposome disclosed by the invention is used for inhibiting active oxygen accumulation, mitochondrial injury and cell apoptosis in cells; the compound is used for inhibiting auditory hair cell mitochondrial injury in cochlea. The antioxidant liposome disclosed by the invention can be used for effectively packaging medicines and improving the bioavailability and the stability of the medicines; the limitation of a tympanic membrane barrier and other biological barriers can be overcome, so that the medicine can effectively reach the inner ear part; precise targeted delivery of the medicine can be achieved, and it is ensured that the medicine is intensively released at the needed position.

The invention discloses modified asphalt concrete and a preparation method and application thereof, and belongs to the technical field of asphalt concrete.The preparation method comprises the steps that sodium silicate, sodium hydroxide and water are stirred and mixed and then transferred into a stirring machine to serve as an alkali activator, and then fly ash, electrolytic manganese residues, cement, modified sugarcane fibers and fine sand are added into the stirring machine to be stirred and mixed; vibrating to discharge internal gas, standing, demolding and crushing to obtain geopolymer aggregate; the modified asphalt, the geopolymer coarse aggregate and the basalt fine aggregate are stirred and mixed in proportion, and the modified asphalt concrete is obtained; the geopolymer aggregate takes the electrolytic manganese residues and the fly ash as main raw materials, the utilization rate of waste resources is increased, and the modified sugarcane fibers are doped, so that the mechanical property of the geopolymer can be improved, and the application requirements of asphalt road aggregate are met. And compared with addition of steel fibers and polymer fibers, the sugarcane fibers are degradable and more environmentally friendly, and dismantling and recycling of temporary asphalt roads are facilitated.

The invention belongs to the technical field of sample collection, and particularly relates to a seabed sediment columnar sample collection device and method. The collecting device comprises a rectangular-ambulatory-plane-shaped bearing base, bearing frames are installed on the bearing base, the multiple bearing frames are jointly connected with a circular base disc located at the center position above the bearing base, a pressure relief sampling mechanism is arranged on the circular base disc, and a height difference exists between the circular base disc and the bearing base. The pressure relief sampling mechanism comprises a circular sampling tube, and an opening of the sampling tube faces the bearing base and is coaxial with the circle center of the circular basal disc; a sawtooth annular disc with the same shape and size as the sampling tube is also mounted at the opening of the sampling tube. According to the invention, the unsmooth sample removal caused by large friction force between the inner wall of the sampling tube and a sample can be avoided through the removal-assisting molding device, so that the sample can be removed smoothly and completely, the sample removal difficulty of the sample is reduced, and the use effect of the device is improved.

The invention provides a crayfish egg in-vitro hatching device and hatching method, and relates to the technical field of in-vitro hatching. The in-vitro hatching device for the crawfish eggs comprises a hatching barrel, wherein a plurality of overflow ports are formed in the side wall of the hatching barrel; an egg containing barrel is embedded in the hatching barrel, the top end of the egg containing barrel is rotationally connected with an upper cover plate, and an aeration pipe is connected to the upper cover plate in an inserted mode and extends to the inner bottom of the egg containing barrel; the outer wall of the hatching barrel is sleeved with an overflow barrel, the aeration pipe is rotationally communicated with a first power mechanism, the first power mechanism is coaxially and rotationally embedded in the egg containing barrel, air is continuously injected to drive water to roll on the inner side and the outer side of the egg containing barrel, and active eggs and inactive eggs are gradually separated; the screening holes are utilized to gradually separate inactive eggs from active eggs, and the eggs overflow into the overflow cylinder from the overflow port under the rolling action of the water body, so that good eggs and bad eggs are separated, and bacteria on the bad eggs are prevented from quickly infecting the good eggs.

The invention relates to the technical field of automobile part structures, in particular to a planet row speed reducer lubricating structure for coaxial distributed driving. Comprising a shell, an input shaft, a gear ring, a plurality of planetary gears, a plurality of planetary shafts, a planetary carrier and an oil receiving disc. The gear ring is of an annular structure fixed to the shell. The planetary gears are arranged at intervals in the circumferential direction of the input shaft with the axis of the input shaft as the center, and the planetary gears are meshed with the input shaft and the gear ring; one end of the planetary shaft penetrates through the planetary gear; the planet carrier is sleeved on the input shaft in a manner of rotating around the axis of the input shaft, the planet carrier is fixedly connected with the other end of the planet shaft in the direction of rotating around the axis of the input shaft, and the oil receiving disc is fixed on one axial side of the planet carrier; and the oil liquid sprayed out of the oil liquid channel of the shell is uniformly distributed to the planet carrier, the planet gear, the planet shaft and the first bearing structure in the axial direction. The speed reducer is simple in structure, a special electronic pump does not need to be configured, the energy effect is greatly reduced, and the problem that the NVH effect is poor is solved.

The invention discloses an immunoregulation drug delivery system for specifically targeting focus MDSC cells as well as a preparation method and application of the immunoregulation drug delivery system. The delivery system is of a double-layer vesicle structure, an inner-layer vesicle is a polymer vesicle of an antibody targeting MDSC cell surface marker, the outer wall of the inner-layer vesicle is positively charged and loads an immunoregulation therapeutic gene, and a therapeutic drug is loaded in the inner-layer vesicle; the outer-layer vesicle is an enzyme substrate polypeptide-PEG (Polyethylene Glycol) modified liposomal vesicle which can be disintegrated in a targeted manner under the action of a placenta interstitial fluid high-expression enzyme. The delivery system provided by the invention can realize regulation and control of MDSC in the placenta and regulation and control of immunity in the placenta, avoids influence on functions of other cells in the placenta, can effectively reduce medicine leakage through maternal and fetal barriers, and reduces toxicity to fetuses and maternal bodies.

The invention discloses a folic acid-polylactic acid double-layer vesicle delivery system for targeting MDSC cells in a focus and a preparation method and application of the folic acid-polylactic acid double-layer vesicle delivery system, the folic acid-polylactic acid double-layer vesicle delivery system comprises an inner-layer vesicle and an outer-layer vesicle, and a contrast agent is contained between the inner-layer vesicle and the outer-layer vesicle; the inner-layer vesicle is formed by self-assembling two block polymers, the outer wall of the inner-layer vesicle is positively charged, the inner-layer vesicle is compounded with an immunoregulation therapeutic gene through electrostatic interaction, the surface of the inner-layer vesicle is modified by an antibody targeting an MDSC cell surface marker, and a therapeutic drug is loaded in the inner-layer vesicle; the outer vesicle is formed by a liposome modified by targeted disintegration enzyme substrate polypeptide-PEG (Polyethylene Glycol). According to the double-layer vesicle delivery system, the delivery regulation range of the COX-2 inhibitor and folic acid targeted immunotherapy can be limited to local lesion placenta, the toxicity of immune drugs to pregnant women is effectively reduced, effective immunotherapy of placental diseases is made possible, the current situation that no treatment means are provided for placental dysfunction diseases is remarkably improved, and the application prospect is wide. A new thought is provided for effective immunotherapy of placenta dysfunction diseases.

The invention discloses a three-sludge treatment agent and a preparation method thereof, and belongs to the technical field of oily sludge treatment, the three-sludge treatment agent comprises a treatment agent A and a treatment agent B. The treatment agent B comprises the following raw materials by mass: 30-40 parts of polyacrylamide, 8-10 parts of modified attapulgite clay, 5-6 parts of a compound, and 40-55 parts of deionized water. The modified attapulgite clay is strongly combined with protective films at oil-water and oil-sludge interfaces in the oil sludge through electrostatic force, hydrogen bonds and hydrophobic interaction, the protective films at the oil-water and oil-sludge interfaces are destroyed, oil drops are released and coalesced to form an oil phase, and separation of oil, water and sludge is achieved; positive charges carried in the modified attapulgite clay can be adsorbed to the surfaces of sludge particles with negative charges to be settled and separated out; carboxyl groups contained in the modified hemicellulose can be combined with hydrophilic groups of sophorolipid to form stable mixed micelles, so that the situation that the sophorolipid is easily influenced by the environment to lose efficacy, and oil drops are regathered and precipitated is avoided.

The present invention relates to the field of non-standard automation technology, in particular to an end cap rotary cutting assembly system and method for an injection-molded bottle body, comprising an injection molding machine, an injection molding transfer mechanism, a conveying mechanism, a first positioning mechanism, a first clamping mechanism, a rotary cutting mechanism, a second positioning mechanism, a second clamping mechanism and an end cap assembly mechanism, wherein the injection molding machine is used for bottle body injection molding, the injection molding transfer mechanism comprises an injection molding material picking component and an injection molding conveying component, the injection molding material picking component is used for grabbing the injection-molded bottle body on the injection molding machine and placing it on the injection molding conveying component, the injection molding conveying component is used for conveying the bottle body toward the conveying mechanism, the conveying mechanism is used for bottle body conveying, the first positioning mechanism is used for positioning the bottle body on the conveying mechanism, the first clamping mechanism is used for clamping the positioned bottle body and conveying it toward the rotary cutting mechanism, and the rotary cutting mechanism is used for ring cutting at the port on the bottle body; the present invention realizes full-chain automated operation from injection molding to end cap assembly through integrated and automated design.

The embodiment of the invention relates to a game processing method and device, equipment and a storage medium. The method comprises the following steps: in response to a game starting operation of a target game, sending a cloud game starting request to a cloud game server so as to trigger the cloud game server to run the target game and generate a cloud game running result; displaying a cloud game operation result; downloading the resource packet of the target game to a local storage space, and loading the resource packet from the local storage space for off-screen rendering; if the first switching condition is detected, determining target game progress data of the target game, and continuing to perform off-screen rendering based on the target game progress data to generate a local game operation result; and displaying the local game operation result to locally operate the target game, and sending a cloud game ending request to the cloud game server to trigger the cloud game server to end the target game. Therefore, the speed of entering the game interface by the user is accelerated while the game effect is basically undifferentiated, and the waiting time of the user is shortened.

The invention provides a stem cell extract composition for promoting hair growth and a preparation method thereof, and belongs to the technical field of cosmetics. Fetal calf serum, dexamethasone, penicillin, streptomycin, interleukin-2 and magnetic composite particles are added into a DMEM culture medium to prepare the culture medium, the culture medium is used for in-vitro culture of stem cells, during culture, a stem cell solution is prepared by combining a low-frequency magnetic field with low-energy laser culture, exosomes are extracted from an extracting solution, the exosomes and the stem cells are mixed and embedded to prepare embedded microspheres, and the embedded microspheres are used for in-vitro culture of the stem cells. The stem cell extract composition for promoting hair growth is prepared by uniformly mixing the stem cell extract with extracts extracted from fresh ginger, ginseng and polygonum multiflorum, the storage stability of stem cells and exosomes is obviously improved, hair growth is promoted, hair follicle development is promoted, mouse hair is induced and maintained in a growth period, and the stem cell extract composition is free of hormone addition, safe and non-irritant, and has a good application prospect. Wide application prospects are realized.

The utility model relates to the technical field of water body suspended matter treatment, and discloses a water surface suspended matter cleaning device which comprises a box body, floating assemblies are arranged on the front face and the back face of the box body, a storage cavity is formed in the top of the box body, a collecting net bag is arranged in the storage cavity, and inlets are formed in the left side and the right side of the box body and correspond to the storage cavity. And shifting-in assemblies are symmetrically arranged on the inner walls of the two inlets. According to the floating object collecting device, floating objects are collected through the conveying effect of the pump body and the intercepting effect of the collecting net bag, in the collecting process, by arranging the shifting-in assembly, in the process that the pump body drives water flow to flow in the liquid outlet pipe, the water flow drives the spiral blade to rotate, and then the rotating shaft and the arc-shaped plate are driven to rotate through the transmission shaft; under the driving effect of rotation of the arc-shaped plate, the entering of the floating objects and the floating garbage into the collecting net bag can be accelerated, and under the stirring effect of the arc-shaped plate, the traction force on the floating objects can be improved, and the collecting effect is improved.

The invention discloses a method for simultaneously extracting starch and protein and application thereof. The invention belongs to the technical field of corn deep processing. The invention aims to solve the technical problems that the existing method is low in production efficiency and the obtained corn starch and corn protein are poor in processing characteristic and digestion characteristic. The method comprises the following steps: (1) performing vacuum low-temperature alkalization cooking on corn kernels in a calcium hydroxide solution; (2) performing ultrasonic-high static pressure cooperative treatment after cooking, and then soaking; (3) performing coarse grinding on the soaked corn kernels, then performing fine grinding, and performing enzymolysis with compound protease; and (4) finely grinding, filtering, standing, centrifuging, washing with water, precipitating, respectively collecting a lower-layer white part and an upper-layer yellow part, and freeze-drying to respectively obtain the corn starch and the corn protein. The method improves the processing characteristics of starch and the digestion characteristics of protein, and can be applied to development and production of high-quality corn starch or corn protein-based food.

The invention relates to the technical field of consumer goods detection, and discloses a detection method for rapidly determining the content of twenty-two flame retardants in consumer goods, which comprises the following steps: S1, preparing a liquid sample; s2, putting a solid sample to be detected into a reaction tube, and adding a liquid sample; step S3, extracting; and S4, analyzing the sample solution by adopting a liquid chromatograph-mass spectrometer. The method can simultaneously detect the content of twenty-two organic flame retardants, utilizes ultrasonic extraction and LCMSMS analysis, makes up the disadvantages of gas chromatography, can rapidly determine the content of twenty-two organic flame retardants, is simple in operation and short in analysis time, and has very high test efficiency. According to the method, the repeatability is 0.3%-3.8%, the reproducibility is 1.3%-2.7%, the detection limit of the method is as low as 0.02 mg / kg, and the method completely meets the control requirements of all countries and the test requirements of customers.

The invention discloses a gene for improving genetic transformation efficiency of wheat and application of the gene, and belongs to the technical field of plant genetic engineering. By utilizing the TaHRF1 gene and the encoded protein thereof, exogenous nucleic acid molecules can be promoted to be integrated into a target plant genome, the integration efficiency of the nucleic acid molecules is improved, the growth and development of transformed plants are normal, and the target plants comprise but are not limited to monocotyledonous plants such as wheat. An overexpression vector of the wheat TaHRF1 gene is constructed to infect explants of wheat with different genotypes. Statistical data shows that compared with a control vector, the overexpression vector of the TaHRF1 gene can promote nucleic acid molecules to be integrated into a genome of a target plant. By utilizing the TaHRF1 gene, the genetic transformation efficiency of a target gene introduced into a plant can be improved, the regeneration capacity and transformation efficiency of monocotyledonous plants, especially wheat, are improved, and the plant subjected to genetic transformation grows and develops normally. The invention provides a new important gene resource for overcoming genotype dependence of wheat genetic transformation.

The invention discloses a polypeptide nanoparticle composition, which relates to the gene delivery technology field in the field of gene therapy. The peptide for delivering nucleic acid has the following general structure: (Arg)n-Xa-Yb-Xc-Cys (general formula I), wherein: n+a+b+c+1=6-40, n, a, b or c are independent of each other, and n≥1, b≥1, a, c are any of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26. The invention provides a novel non-natural polypeptide having the function of encapsulating nucleic acid and selectively promoting nucleic acid to pass through cell membrane, as well as a macromolecular lipid polypeptide nanoparticle containing the polypeptide, a method for using the same for in vivo and in vitro cell gene transfection, and a method for applying the same to vaccine preparations.

The invention relates to a communication port resource pairing device and method, and the device comprises a communication port which is provided with a main tag, the main tag comprises a main tag chip and a main tag antenna connected with the main tag chip, and the main tag antenna is wirelessly connected with a radio frequency identifier; and the communication plug is in mutual plugging connection with the communication port, the communication plug is provided with a slave tag, and the slave tag comprises a slave tag chip electrically connected with the master tag chip. When the communication plug and the communication port are mutually plugged and connected, the master tag chip is electrically connected with the slave tag chip, the slave tag chip does not need to be provided with an antenna, only the slave tag chip needs to be integrated on the communication plug, the size of the communication plug can be designed to be smaller, and the miniaturization requirement of a high-density wiring connector in the future is met. The radio frequency identifier associates and binds the information of the master tag chip and the information of the slave tag chip one by one, so that one-to-one entry of tag objects is omitted, and the resource information entry and association efficiency is greatly improved.

The permanent magnet comprises, by mass, REaNbFe100-a-b-c-dCocBd, RE is a combination of two or more of rare earth elements including lanthanum, cerium, praseodymium and neodymium and must contain the cerium element, the mass percentage of the cerium element is not lower than 6%, N is one or more of aluminum, copper, gallium and zirconium, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, and the sum of the mass percentage of the elements is not lower than 6%. The permanent magnet is prepared from two raw materials including a main phase alloy and an auxiliary phase alloy through double-alloy formation, the main phase alloy comprises a cerium element, and the auxiliary phase alloy comprises a cobalt element; through the addition of the cobalt element, the precipitation of the CeFe2 phase can be reduced, a new main phase is formed, the main phase volume ratio of the permanent magnet is increased, the problem of magnetic performance deterioration caused by the addition of the cerium element is avoided, and the prepared cerium-containing rare earth permanent magnet has high coercive force.

The invention discloses a method for improving wheat genetic transformation efficiency by using an agrobacterium-mediated method, and belongs to the technical field of plant genetic engineering. The TaHRF2 gene and the encoding protein thereof can promote nucleic acid molecules to be introduced into target plants and improve the genetic transformation efficiency of the nucleic acid molecules introduced into the target plants, and the target plants include but are not limited to monocotyledonous plants such as wheat. A TaHRF2 gene high expression vector is introduced into an agrobacterium strain, and an agrobacterium-mediated method is utilized to infect a wheat explant, so that the genetic transformation capability of backbone parents such as Beijing No. 8 and Lu wheat No. 1 is improved, and important information and chassis technical support are provided for establishment of an efficient genetic transformation system of wheat main cultivated varieties difficult to regenerate.

The invention discloses a ship seawater valve box and a ship, the seawater valve box structure comprises a plurality of hierarchical areas which are arranged in the seawater valve box and between a grating and a seawater inlet short pipe, and each area is provided with a seawater through hole for communication. And the vent pipes are arranged in each layer area. Aiming at the design thought of the seawater valve box for reducing bubble gathering, the partition plate is arranged in the seawater valve box to standardize the flow direction of seawater, the path of bubbles entering the seawater valve box and reaching a seawater pump suction port is prolonged, and bubble gathering is reduced. The ventilation degree is increased by additionally arranging the ventilation pipes above the different partition plates, bubbles are discharged into the atmosphere as much as possible by increasing the number of the ventilation pipes or increasing the pipe diameters of the ventilation pipes, the operation defects of seawater cooling systems of ro-ro passenger ships and container ships are effectively overcome, stable operation of the ships is facilitated, and the safety coefficient is increased.

The invention belongs to the technical field of functional polymers, and particularly relates to a high-water-absorption konjac hydrogel polymer and a preparation method thereof. The konjac hydrogel polymer is prepared from the following raw materials in parts by weight: 30 to 40 parts of acetylated konjac glucomannan, 10 to 15 parts of modified chitosan, 5 to 8 parts of calcium chloride solution, 1 to 3 parts of acetic acid solution, 3 to 5 parts of nano cellulose, 2 to 5 parts of beewax, 10 to 15 parts of MCT medium chain triglyceride and 1 to 3 parts of emulsifier. According to the invention, through acetylation modified konjac glucomannan, hydrophilicity is reduced, water absorption is delayed, and stability of an acidic environment is improved; the mechanical strength is enhanced through crosslinking, the hydrophobicity is improved through chitosan modification, and the mechanical strength and toughness are improved through nanocellulose; the surface is coated with a beeswax and MCT mixture to adjust the surface property and delay water absorption; an interface induction method is combined with a freeze-drying technology to generate a porous structure, so that the water absorption efficiency and the structural integrity are improved.

The invention belongs to the technical field of medicines, and relates to a berberine tannate oral preparation and a preparation method thereof. The oral preparation comprises berberine tannate, a filling agent, a disintegrating agent, an adhesive and a wetting agent, the filling agent is pregelatinized starch, microcrystalline cellulose and colloidal silicon dioxide; the disintegrating agent is one or more of sodium carboxymethyl starch, cross-linked sodium carboxymethyl cellulose and cross-linked polyvinylpyrrolidone. The auxiliary materials of the berberine tannate oral preparation cooperate with one another, so that the flowability and compressibility of the powder are effectively improved, and the obtained final preparation product is excellent in stability and dissolution property and high in bioavailability; in addition, the oral preparation is simple in preparation process and suitable for large-scale production.

The invention belongs to the technical field of biomedical materials, and provides an antibacterial healing-promoting hydrogel dressing which at least comprises a hydrogel layer and a drug-loaded nanofiber membrane layer, the hydrogel layer at least comprises a carrier substance and a thermocouple ion pair supply substance, and a drug-loaded nanofiber membrane at least comprises a fiber membrane carrier and drug powder. The invention also provides a preparation method of the antibacterial healing-promoting hydrogel dressing, which comprises the following steps: by taking hexafluoroisopropanol as a solvent, adding the polylactic acid-glycolic acid copolymer, the gelatin and the medicine powder to prepare a spinning solution; carrying out electrostatic spinning on the prepared spinning solution to prepare a drug-loaded nanofiber membrane; the method comprises the following steps: by taking water as a solvent, adding sodium chloride and a thermocouple ion pair supply substance, stirring until fully dissolving, adding a photo-thermal reagent, and ultrasonically dispersing uniformly to obtain a mixed solution A; preparing a polyvinyl alcohol aqueous solution, adding the polyvinyl alcohol aqueous solution into the mixed solution A, and fully stirring to obtain a hydrogel precursor mixed solution; and soaking the prepared drug-loaded nanofiber membrane into the hydrogel precursor mixed solution, and performing freeze-thaw cycle to obtain the antibacterial healing-promoting hydrogel dressing. The hydrogel with the thermoelectric effect is used in cooperation with the drug-loaded nanofiber membrane, drug release of the drug-loaded nanofiber membrane layer is promoted, and therefore wound healing is promoted.