647results about How to "Improve permeability" patented technology

Embodiments of the invention provide a write head for perpendicular recording in which the magnetic field intensity applied at a read element is reduced with larger write-field gradients and the distance between a write element and a read element is small. In one embodiment, a pair of magnetic bodies for shielding a read element are provided on the leading and trailing sides of the read element respectively and whichever one of the two shields is the longer in the length from the air bearing surface is shorter than the length up to the back contact position PBK at which a main pole and an auxiliary pole are connected.

The invention provides a hydroxytyrosol supramolecular compound and a preparation method and application thereof, and belongs to the technical field of cosmetics and biological medicine, the supramolecular compound comprises the following chemical components by mass: 0.01-10% of hydroxytyrosol, 2-45% of an amino acid compound, 2-20% of alpha hydroxy acid, 2-30% of urea, and 15-92% of water. The supramolecular compound can promote transdermal delivery of hydroxytyrosol and maintain the biological activity of hydroxytyrosol, shows high biocompatibility, and can be applied to product development in the antibacterial field, the regeneration field and the anti-aging field.

The invention relates to the technical field of special polymer functional membranes, and discloses a polybenzimidazole gas separation membrane as well as a preparation method and application thereof, the polybenzimidazole gas separation membrane has an interpenetrating network-shaped pore structure, and the polybenzimidazole gas separation membrane has a nanoscale pore structure. The pore size distribution of the nanoscale pore structure is 0.1-30 nm, and the average pore size of the nanoscale pore structure is 1-80 nm. The polybenzimidazole gas separation membrane has an interpenetrating network-shaped pore structure and a nanoscale pore structure, so that the polybenzimidazole gas separation membrane has relatively high gas selectivity and permeability coefficient and also has relatively good mechanical properties.

The invention relates to the technical field of stainless steel pipe fittings, in particular to a high-performance anti-corrosion stainless steel pipe fitting and a preparation method thereof.The preparation method of the high-performance anti-corrosion stainless steel pipe fitting comprises the following steps that S1, mechanical polishing is conducted; s2, removing oil; s3, acid treatment is conducted, specifically, the stainless steel pipe fitting blank obtained after oil removal is soaked in an acid surfactant solution for 5-10 min, and the stainless steel pipe fitting blank is taken out, washed with water and dried; the solute in the acidic surfactant solution comprises acid and a cationic surfactant; s4, adsorption treatment is conducted, specifically, the stainless steel pipe obtained after acid treatment is soaked in an adsorption solution containing graphene oxide for 4-10 min, and the stainless steel pipe is taken out and dried; and S5, anti-corrosion coating treatment is conducted, specifically, anti-corrosion coating is sprayed to the surface of the stainless steel pipe fitting blank, drying is conducted, and the high-performance anti-corrosion stainless steel pipe fitting is obtained. The method has the advantage that the anti-corrosion performance of the organic anti-corrosion coating can be improved.

The invention discloses an energy storage cluster auxiliary thermal power frequency modulation and peak regulation collaborative optimization method considering dynamic balance, and belongs to the technical field of power system operation and control. Comprising the following steps: constructing a double-layer collaborative optimization control model; comprising the following steps: an energy storage cooperative thermal power frequency modulation and peak regulation power distribution layer introduces a frequency modulation demand in a peak regulation process, designs a power distribution and frequency modulation distribution strategy for peak regulation and peak regulation stages, and completes thermal power-storage frequency modulation and peak regulation power distribution by constructing a thermal power-storage frequency modulation and peak regulation power optimization distribution model; the multi-type energy storage power station power distribution layer constructs a multi-type energy storage power station power optimization distribution model by adopting a dynamic equilibrium coefficient; obtaining an energy storage power station power distribution value and an SOC state through a target function of the multi-type energy storage power station power optimization distribution model; and performing optimization scheduling on the new energy power system based on the power distribution value of the energy storage power station and the SOC state. According to the invention, the balance control of the calling degree and the SOC of the multi-type energy storage power station is realized.

The invention provides traditional Chinese medicine fermented disaccharide encapsulated nano anti-dandruff, hair-growing and oil-controlling shampoo and a preparation method, and relates to the field of daily chemical products, and the shampoo comprises the following components: a compound fermentation product, lactobacillus crispatus, lactobacillus plantarum, a disaccharide activity protection system, a basic component and a nano oil-controlling component; the compound leavening is prepared from cacumen biotae, radix polygoni multiflori, radix ginseng, fructus cnidii and orchid; the disaccharide activity protection system comprises maltotetraose and trehalose; the disaccharide activity protection system wraps a fermented material formed by fermenting the compound fermentation product, the lactobacillus crispatus and the lactobacillus plantarum to form a disaccharide glassy state layer; the nano oil control component is prepared from calamine powder and chitosan-sodium alginate; the basic component is prepared from tea bran, radix sophorae flavescentis, herba ecliptae, radix notoginseng, fructus ligustri lucidi, tea saponin microcapsules and tremella polysaccharide. According to the invention, through fermentation conversion of the orchid, disaccharide glassy state protection and slow release of the nano calamine, activity enhancement, stable retention and accurate release are realized, and the effects of removing dandruff, relieving itching, controlling oil and growing hair are achieved.

This invention discloses a submarine cable anti-scouring device and its construction method, applicable to the field of submarine cable protection technology. The invention includes a filter layer and a flexible protective layer. The filter layer comprises multiple filter pads arranged sequentially along the axial direction of the submarine cable on the surface of the cable and / or the seabed, with adjacent filter pads overlapping. The flexible protective layer comprises multiple flexible protective pads arranged sequentially along the axial direction of the cable on the filter layer. At least one flexible protective pad is provided at the overlap of any two adjacent filter pads to press the filter layer firmly against the surface of the cable and / or the seabed. This application, through the cooperation of the filter layer and the flexible protective layer, improves the stability of the submarine cable anti-scouring device to reduce inter-segment displacement and possesses adaptive capability to seabed subsidence deformation, effectively enhancing the anti-scouring effect of the submarine cable.

The application relates to a nickel-zinc-copper ferrite and a preparation method and application thereof, the nickel-zinc-copper ferrite comprising main components and auxiliary components; the main components comprise Fe2O3 64-66.7 mol%, NiO 9-12 mol%, ZnO 13.5-19 mol% and CuO 3-9.5 mol% with the total mole percentage being 100 mol%; the auxiliary components comprise Bi2O3 0.3-1.5 wt%, Co2O3 0.1-0.6 wt%, CaCO3 0.03-0.08 wt% and ZrO2 less than or equal to 0.1 wt% with the total mass percentage of the main components being taken as a standard. The content of Fe2O3, ZnO, NiO and CuO is controlled, the content of the auxiliary components is matched and adjusted, the prepared nickel-zinc-copper ferrite has high saturation magnetic induction intensity, high magnetic permeability, high Curie temperature, low residual magnetic induction intensity and low specific temperature coefficient, and can be better applied to power inductance or common-mode inductance.

The utility model discloses a ferrite UB type magnetic core contains, include: base, the base is metal soft magnetic magnetic core, and the base is wide in the middle, and the shape symmetry of left and right two narrow ends is set, and the left and right two ends of base are respectively set up with one first recess of opening upward, and the middle part of base is set up with one second recess of opening upward, two edge columns, the edge column is metal soft magnetic magnetic core, one middle column, the middle column is ferrite magnetic core, wherein, two edge columns are fixed respectively set up in two first recesses, the middle column fixed mounting is in second recess, and there is the wire winding space between edge column and middle column, and the front and back end surface of middle column is respectively with the front and back end surface of partial base flush, and the outside of two edge columns is respectively with the left and right side surface of base flush. The magnetic core in the scheme is high in permeability, and the ferrite middle column is convenient, fixed firm.

The present application relates to the field of aquaculture, and particularly relates to a device and method for vertical seedling and bottom sowing and propagation of sessile shellfishes, comprising a culture frame and a culture tray, wherein the culture tray comprises a side plate, a shelf, a seedling attachment device and a connector, the side plate forms a rectangular frame, the top and bottom of the rectangular frame are open, a plurality of water-permeable holes are arranged on the side plate, the shelf is arranged in parallel on the outer side of the side plate, the seedling attachment device is arranged to block the opening at the bottom of the rectangular frame, the seedling attachment device is connected to the opening at the bottom through the connector, the culture frame comprises a three-dimensional frame and a shelf frame, the shelf frame is arranged in parallel inside the three-dimensional frame, and the shelf is arranged on the shelf frame. By using the device, the density of the seedlings during attachment can be adjusted, the density of the seedlings is made to be reasonable, and the suitable density for the growth of the seedlings is obtained.

The invention discloses a gradient composite reinforced anti-corrosion treatment method for a metal alloy guardrail, and belongs to the technical field of metal material surface treatment. The method comprises the following steps: carrying out ultrasonic cavitation micro-etching and electrochemical gradient activation pretreatment on the surface of a substrate; a metal ceramic composite layer containing a non-oxide ceramic reinforced phase is generated on the surface in situ through a micro-arc oxidation-chemical vapor deposition coupling process, and a component transition layer is formed with the assistance of vacuum gradient diffusion alloying treatment; and finally, coating an intelligent resin coating containing a corrosion inhibitor capsule and a corrosion indicator, and constructing a super-hydrophobic surface. By constructing a multi-layer composite protection system of the gradient diffusion layer / the metal ceramic layer / the intelligent coating / the super-hydrophobic layer, the anti-corrosion performance is remarkably improved, and the obtained guardrail has excellent bonding strength, wear resistance and long-acting anti-corrosion service life, has the intelligent functions of damage self-repairing and corrosion state visualization and is suitable for popularization and application. The method is especially suitable for harsh service environments.

The present application relates to the technical field of pesticides, in particular to a kind of pesticide composition, preparation, use and method, the pesticide composition includes the active ingredient A and active ingredient B with mass ratio of 1: (10-50), the active ingredient A is p-chlorophenoxyacetic acid or its agronomically acceptable salt, the active ingredient B is ethylene.The present application is by p-chlorophenoxyacetic acid (or its salt) and ethylene is compounded according to specific proportion with specific application concentration is applied, reaches the effect of controlling vigorous, inhibiting ear germination and increasing yield, alleviates the negative influence of growth inhibition to root system and young ear development caused by ethylene as the vigorous controller is used and the side effect of early decline and yield reduction caused by as ear germination inhibitor is used;Meanwhile, the pesticide preparation provided by the present application is soluble concentrate, and has high efficacy, strong penetration, convenient use, good safety, and the active ingredient is not easy to decompose, and the physical and chemical properties are stable.

The utility model discloses a physiotherapy patch heating device relates to physiotherapy patch heating technical field, including heating assembly, and heating assembly is by base and heating plate composition, and the upper end of base is fixedly installed to heating plate, and the outside of heating plate is equipped with the heat preservation heat insulation sleeve ring, and the heat preservation heat insulation sleeve ring is by base ring, heat preservation heat insulation ring and inside contact ring composition, and heat preservation heat insulation ring fixed mounting is on the inner wall of base ring, and inside contact ring fixed mounting is on the inner wall of heat preservation heat insulation ring, and through setting up by heating assembly, heat preservation heat insulation sleeve ring, support frame, rotary limit component and heat preservation compression assembly composition's physiotherapy patch heating device, can place the physiotherapy patch that needs heating to heating assembly heating, utilize support frame, rotary limit component and heat preservation compression assembly simultaneously and press the physiotherapy patch on heating assembly, make the physiotherapy patch can overall with heating assembly contact, ensure that physiotherapy patch is heated evenly, avoid appearing local overheating or heating insufficient condition.

The application discloses high-strength composite cement blanket and belongs to the technical field of civil engineering composite materials. The application improves the three-dimensional fabric structure: a three-dimensional weaving is adopted to form a top layer, a middle layer and a bottom layer, wherein the middle layer is formed by a honeycomb three-dimensional structure formed by interweaving vertical fiber filaments and horizontal oblique fiber filaments which are arranged obliquely relative to the vertical fiber filaments; the vertical fiber filaments connect the top layer and the bottom layer; and the horizontal oblique fiber filaments pass through the vertical fiber filaments in an S-shaped wiring mode multiple times to form limiting knots which are distributed in the top layer, the middle layer and the bottom layer to form an overall tensile strength reinforcing structure. The three-dimensional fabric can be combined with a "two cloth and one film" protective layer and a solidifiable composite material containing gold steel sand. The application realizes isotropic reinforcement through the honeycomb structure and builds a mechanical occlusal interface through the S-shaped limiting structure, thereby significantly improving the bending strength, interface adhesion and waterproof durability of the cement blanket, and the application is suitable for slope protection, trench lining and temporary road paving engineering and the like.

The application discloses a negative pole piece and a lithium ion battery, and relates to the technical field of batteries, and specifically discloses a negative pole piece and a lithium ion battery. The negative pole piece comprises a current collector, a first coating layer and a second coating layer which are stacked on at least one side of the current collector; the first coating layer and the second coating layer each comprise a negative active material, a first binder, a second binder, a first conductive agent and a second conductive agent; and the preparation of the negative pole piece satisfies the following conditions: 2≤C2 / C1≤4 and 1.05≤X / Y≤1.25, wherein C1 and C2 are the mass proportions of the first conductive agent in the first coating layer and the second coating layer respectively, and X and Y are the solid contents of the first coating layer slurry and the second coating layer slurry respectively. According to the application, the solid content of the slurry, the proportions of different active materials and conductive agents are designed and controlled in the double-coating pole piece, and the designed proportions satisfy a certain functional relationship, so that the ion conductivity of the battery can be effectively improved while the high conductivity of the pole piece is maintained, the direct-current internal resistance of the pole piece in the charging and discharging process is reduced, the rate charging and discharging performance is improved, and the lithium precipitation window is widened.

This invention discloses a portable low-temperature plasma device based on a Laval nozzle structure and its application, belonging to the field of plasma technology application technology. Specifically, it includes (1) the construction of the device; and (2) the use of the device for fungal eradication treatment and transdermal drug delivery enhancement treatment. The beneficial effects achieved by this invention are as follows: This invention is the first to apply the Laval nozzle structure to a portable low-temperature plasma device. The results show that the device can effectively improve the plasma jet performance and active particle content, significantly improve the treatment effect of fungal infections of the skin and nails and the transdermal drug penetration efficiency, while solving the problems of large size, reliance on external power supply, and complex operation of traditional plasma devices. Therefore, using this invention for the treatment of fungal infections of the skin and nails and for enhanced transdermal drug delivery has advantages such as ease of operation, high safety, non-invasiveness, and high efficiency, and thus has potential application prospects in the field of skin disease treatment and transdermal drug delivery.

The invention belongs to the technical field of exosome preparation, and discloses a plant exosome with an anti-acne effect and a preparation method and application of the plant exosome with the anti-acne effect. According to the application, an integrated technical route of microbial regulation and induction, complexing-agent-free green extraction and synergistic acne resistance is established: a microbial strain spore suspension is used as a biological inducer, a plant active precursor is released by dynamic countercurrent of ethanol, and PEG / CaCl2 residues are completely eradicated through physical separation in the whole process; finally, the microorganism-induced plant exosome with high yield, high activity and high safety is obtained.

The present application relates to a cosmetic composition, and more particularly, to a cosmetic composition comprising an amino acid-amino acid eutectic mixture and Troxerutin as an effective ingredient, thereby providing an effect of inhibiting inflammation and relieving / reducing skin irritation.

The application discloses a kind of hardness correlation liver cancer lung premetastatic niche mouse model construction method, it includes the following steps: (1) in vitro enrichment respectively on the low hardness substrate of hardness 6kPa and the high hardness substrate of hardness 16kPa, the condition culture supernatant of mouse liver cancer cell Hepa1-6 that is cultured and grows, respectively named mL-CM and mH-CM;(2) mL-CM and mH-CM are respectively injected into two groups of mice using tail vein injection mode, every 1 day injection 1 time, until the 26th day, during continuous monitoring the recruitment of BMDCs in fresh lung tissue, while with the induction endpoint, i.e. 26th day premetastatic niche mark feature detection includes lung tissue matrix remodeling, immunosuppression, angiogenesis, vascular permeability and inflammation etc..The method has the advantages of short modeling cycle, easy operation, controllable induction condition, can comprehensively and accurately evaluate the common characteristics of liver cancer lung premetastatic niche formation etc..

The application belongs to the field of membrane material preparation, and discloses a preparation method of a natural gas dehydration membrane, the natural gas dehydration membrane and application thereof. The preparation method comprises the following steps: S1, preparing a mixed solution, wherein the mixed solution comprises polyetherimide, water wheel phenol and a solvent; S2, coating the mixed solution obtained in step S1 into a film; S3, placing the film obtained in step S2 on a substrate or a cold table at-10 to-2 DEG C for 1 to 10 min; S4, placing the film obtained in step S3 at a temperature of 30 to 45 DEG C for 2 to 5 min; S5, placing the film obtained in step S4 into a coagulation solution containing 4-methyl catechol for solidification; and S6, placing the film obtained in step S5 into a pyrrole aqueous solution for immersion, thereby obtaining the natural gas dehydration membrane. The natural gas dehydration membrane prepared by the application has high water permeability and a H2O / CH4 separation coefficient, and can be used in the dehydration process before natural gas transportation.

The present application relates to the technical field of artificial board, and discloses a kind of mould-proof composite board for wardrobe and a preparation method thereof.The composite board for wardrobe prepared by the present application is prepared by using rubberwood sheet as main raw material, impregnating treatment with mould-proof and antibacterial agent, and then adhesive treatment with adhesive containing mould-proof and antibacterial agent.The composite board realizes long-term inhibition of mould through multi-mechanism sterilization of components, synergistic effect and material level protection, and is suitable for wardrobe application in high-humidity environment.In addition, the use of mould-proof and antibacterial adhesive also endows the composite board with excellent bonding strength.

The application discloses a mural reinforcing protective agent and a preparation method and application thereof, belongs to the technical field of cultural relic restoration, and can solve the technical problems that existing mural reinforcing materials cannot reinforce the lower layer structure of ancient murals and are prone to being attached to the surface of murals to cause the whitening of the surface pigments. The mural reinforcing protective agent comprises a bacterial cellulose carrier and Ba(OH)2 nanoparticles loaded on the bacterial cellulose carrier in situ. The application plays a reinforcing role on the lower layer structure of murals, realizes deep reinforcement of ancient murals, improves the protection effect, stability and durability, and the surface of the mural will not be whitened.

The application relates to the technical field of phosphating aids, and discloses an aid for reducing phosphating sediment and a preparation method, which is composed of the following raw materials in percentage by weight: organic phosphonic acid sediment inhibitor 20-40%, high-molecular dispersant 10-25%, complexing stabilizer 5-15%, pH buffer 2-8%, oxidant 1-5%, surfactant 0.5-3%, and the balance is deionized water. Through the synergistic effect of the core components, the organic phosphonic acid sediment inhibitor and the high-molecular dispersant, a multiple protective barrier of "inhibiting nucleation, resisting scale growth and dispersing and stabilizing" is constructed, so that the generation and adhesion of the sediment are fundamentally reduced.

This invention discloses a wide-interlayer-spacing molybdenum disulfide catalyst, its preparation method, and its application, belonging to the field of water electrolysis for hydrogen production energy conversion technology. The preparation method includes the following steps: preparing a molybdenum disulfide precursor solution using a molybdenum source and a sulfur source; then subjecting the molybdenum disulfide precursor solution to a hydrothermal reaction with a carbon-containing interlayer-spacing regulator; and obtaining the wide-interlayer-spacing molybdenum disulfide catalyst after centrifugation and washing. The carbon-containing interlayer-spacing regulator is used to insert into the interlayer of molybdenum disulfide during the hydrothermal reaction, increasing the interlayer spacing of the (002) crystal planes of the obtained molybdenum disulfide catalyst. The wide-interlayer-spacing molybdenum disulfide catalyst of this invention facilitates electrolyte penetration and hydrogen bubble release, effectively avoids active site blockage, enhances the intrinsic conductivity of the catalyst, accelerates internal charge transport, increases active sites for hydrogen evolution reaction, and improves the intrinsic hydrogen evolution catalytic activity of the catalyst.

The comprehensive deep processing device comprises a box body, the box body is a cylinder with the interior hollowed out and the top provided with an opening, an assembly base is installed in the box body, a plurality of movable assemblies are evenly installed on the circumference of the inner side of the assembly base, and the power output ends of the movable assemblies are connected with a driven mechanism; a driving motor is installed at the bottom of the box body, the power output end of the driving motor is connected with a driving assembly, the driving assembly is rotationally arranged in the center of the interior of the box body, a box cover is installed at the top of the assembling base and installed at the top of the box body through thread locking, and a sealing assembly is arranged between the inner side of the box cover and the assembling base; supporting frames are installed on the four sides of the bottom of the box body.

The present application relates to a kind of composite preparation methods for metal-based ceramic composite material, as follows: one, ceramic preform production: ceramic preform mould is made;After pretreatment, ceramic particles, binder, mixed powder are mixed, filled into mould, twice solidification treatment, and ceramic preform is prepared;Two, metal-based ceramic composite material composite preparation: ceramic preform is fixed in cavity, and metal sheet is placed in the both sides of ceramic preform or between two ceramic preforms;Temperature sensor probe is inserted into cavity;After closing, it is placed in electromagnetic induction coil, and heating is carried out;When metal sheet reaches set temperature, keep warm, when ceramic preform reaches required temperature, electromagnetic induction heating system is closed;Pouring metal liquid, cooling and solidification demoulding;Three, post-processing: quenching and tempering treatment are carried out.The present application solves the problem that ceramic preform and metal liquid temperature difference is too large during metal liquid casting, resulting in poor composite effect, low product yield and unsatisfactory use effect.

The invention relates to the technical field of bactericides for crops, in particular to a bacillus cereus-containing bactericidal composition and application thereof in prevention and control of camellia oleifera anthracnose. The active ingredients of the bactericidal composition comprise bacillus cereus WR-12 and diflumetofen sulfanilamide. According to the bactericidal composition, the synergistic bactericidal effect is enhanced by compounding a biological fungicide and a chemical fungicide, the development of drug resistance of pathogenic bacteria is delayed, the negative influence of chemical pesticides on the environment is reduced, green and efficient prevention and control of camellia oleifera anthracnose are achieved, and sustainable development of the camellia oleifera industry is promoted.

The invention provides an anti-biofilm composition based on the synergistic effect of amino fullerene and vancomycin and application of the anti-biofilm composition. The mass ratio of the amino fullerene to the vancomycin is 10: 1. The amino fullerene derivative and vancomycin are combined to have a remarkable synergistic effect in the aspect of inhibiting the formation of the biological membrane for the first time, and the inhibition rate of the biological membrane reaches 93%, so that the amino fullerene derivative and vancomycin have a strong synergistic effect. The composition provided by the invention can effectively remove more than 40% of formed mature biological membranes (24-48-hour biological membranes), which is an effect which cannot be realized by independent use of vancomycin.

This invention discloses a compound traditional Chinese medicine powder inhaler for respiratory tract infections and its preparation method, relating to the field of pharmaceutical formulation technology. The compound traditional Chinese medicine powder inhaler for respiratory tract infections is composed of polysaccharide composite gel microspheres, forsythia, scutellaria, honeysuckle, and isatis root. The polysaccharide composite gel microspheres are composed of seaweed sulfated polysaccharide, lentinan, calcium chloride, and curcumin. Seaweed sulfated polysaccharide, lentinan, curcumin, and calcium chloride cross-link to form a three-dimensional network spherical structure, improving the particle morphology and flowability of the micropowder. Furthermore, due to its good hygroscopic and moisturizing properties, it competitively reduces the moisture absorption of the micropowder, preventing aggregation and further improving flowability. In addition, the gel microspheres have excellent adhesion, adhering to the infection site after entering the respiratory tract, reducing expulsion losses due to respiration, maintaining an effective drug concentration at the infection site, and improving therapeutic efficacy.

The application discloses a kind of marine carbon fiber warp knits and its preparation method application, carbon fiber reinforced resin composite material, belong to carbon fiber composite material technical field, solve the problem of existing technology in the forming of ship large curved surface workpiece Fabric is easy to shrink, resin infiltration efficiency is low.The marine carbon fiber warp knits includes at least two carbon fiber yarn sheets, the carbon fiber yarn sheet is formed by carbon fiber yarn spread yarn flat cross section;At least two carbon fiber yarn sheets are stacked along the thickness direction, and the lay angle of adjacent carbon fiber yarn sheet constitutes asymmetric lay structure;The carbon fiber yarn sheet is stitched by warp knitting thread, and the stitching density of the warp knitting thread is 8-14 roots / inch.The marine carbon fiber warp knits can realize width variation <5mm, resin rapid and uniform infiltration, improve the forming quality and efficiency of ship large curved surface workpiece.