47results about How to "Improve formation efficiency" 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 an anode foil and a preparation method thereof, and relates to the technical field of capacitors. The preparation method comprises the following steps: preparing mixed aluminum slurry which comprises spherical aluminum powder, spherical aluminum oxide powder, a solvent, a binder and a dispersing agent; coating the surface of an aluminum foil substrate with the mixed aluminum slurry, and drying the aluminum foil substrate containing the mixed aluminum slurry to obtain a powder layer aluminum foil blank; sintering the powder layer aluminum foil green body to obtain a sintered foil; performing shot blasting treatment on the sintered foil to obtain an initial anode foil; cleaning and boiling the initial anode foil; and performing formation treatment on the boiled initial anode foil to obtain a target anode foil. According to the preparation method disclosed by the invention, the bending strength of the anode foil can be improved, and large-scale application of the anode foil can be realized.

The invention discloses an ultra-high molecular weight polyethylene fiber melt spinning method which comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene resin with polyethylene wax and high-density polyethylene to form a composition; 2, melting the composition at a high temperature to form a melt, carrying out melt spinning, and carrying out nozzle stretching and air cooling to obtain nascent fibers; and step 3, carrying out hot stretching and heat setting on the nascent fiber to obtain the final ultra-high molecular weight polyethylene fiber. By adopting the technical scheme, the melt flowability of the ultra-high molecular weight polyethylene can be greatly improved by the high-density polyethylene and the polyethylene wax, so that the ultra-high molecular weight polyethylene resin can be smoothly subjected to melt spinning. Meanwhile, in the hot stretching process, the polyethylene wax can participate in the crystallization process of the ultra-high molecular weight polyethylene resin and the high-density polyethylene, and finally the mechanical property of the ultra-high molecular weight polyethylene fiber can be well maintained.

The invention discloses an impregnation preparation method of a hybrid aluminum electrolytic capacitor, and relates to the technical field of capacitors. The method at least comprises the following steps: soaking corroded anode aluminum foil and cathode aluminum foil with citrate; placing electrolytic paper between the anode aluminum foil and the cathode aluminum foil and winding the electrolytic paper into a core package; at least one half of the volume of the core package is immersed in an impregnation liquid from one end for first impregnation treatment, then the core package is inverted, and at least one remaining half of the volume of the core package is immersed in the impregnation liquid from the other end for second impregnation treatment; carrying out drying treatment on the core package subjected to the second impregnation treatment; and carrying out assembling and aging treatment on the dried core cladding, an aluminum shell and a leather plug to obtain the hybrid aluminum electrolytic capacitor. Through the impregnation preparation method of the hybrid aluminum electrolytic capacitor provided by the invention, the impregnation time is greatly shortened, the impregnation efficiency and consistency are improved, and the performance of the capacitor is improved.

The invention discloses a crack pressure-bearing plugging agent and a preparation method thereof, and relates to the technical field of oil well operation plugging. The crack pressure-bearing plugging agent comprises the following raw materials in parts by weight: 4-25 parts of a bridging material, 3-11 parts of a filling material, 0.5-2 parts of a deformed tie bar material and drilling fluid. When the plugging agent is used, a bridge can be quickly formed and a plugging layer can be efficiently formed aiming at deep underground leakage, the plugging agent has the advantages of high strength, high pressure bearing capacity and high temperature resistance, deep, high-temperature and high-pressure stratum conditions can be effectively handled, a stable plugging layer is formed, leakage of a fractured stratum working solution is effectively controlled, and the plugging agent has a good application prospect. And the method can adapt to the characteristic of inducing dynamic change of crack width.

The invention relates to the field of biology, in particular to a fluorescence and bar code pedigree tracking alveolar organ and a construction method and application thereof. The invention particularly aims at the problems of specific sorting of AT2 cells, culture of organoids and pedigree retracking in the disease process, and is used for simulating and researching the in-vitro pathological process of chronic obstructive pulmonary disease (COPD). The alveolar organ with fluorescence and bar code pedigree tracking is constructed and can track the fate transformation of alveolar type II cells (AT2) in a disease model, and the cell pedigree is further decoded, so that a new research basis is provided for early diagnosis and treatment of COPD (chronic obstructive pulmonary disease).

The invention belongs to the technical field of prefabricated part production, and discloses a large prefabricated part surface mineralization hardening enhancing method which comprises the following steps: step 1, processing a plurality of micropores in a steel template for pouring a large prefabricated part, uniformly arranging the micropores in the steel template, and assembling a mold by using the processed steel template; and 2, steel bars are bound and then fixed in a mold, the poured concrete and the mold are arranged on a vibration table together and are compacted through the vibration table, and carbon dioxide gas is sprayed into the surface layer of the concrete. And thirdly, after compaction, the large prefabricated part is subjected to standard curing or steam curing with a mold. And 4, spraying a surface reinforcing agent liquid on the surface of the large prefabricated part, and then performing mineralization reaction in a still kettle. And 5, the autoclaved large prefabricated part is immersed in saturated lime water to be cured to a certain age. The carbonization uniformity of surface concrete is improved, and the formation efficiency of a carbonization layer is improved.

The application provides an anode foil and a preparation method thereof. The preparation method comprises the following steps: providing an unformed foil, wherein the unformed foil comprises an aluminum foil base material and an aluminum powder sintering layer arranged on the surface of the aluminum foil base material; and sequentially performing the following processes on the unformed foil: water boiling, first-stage chemical conversion, second-stage chemical conversion, third-stage chemical conversion, power feeding treatment, fourth-stage chemical conversion, fifth-stage chemical conversion, first-stage heat treatment, first chemical conversion repair, first phosphoric acid treatment, second chemical conversion repair, second-stage heat treatment, third chemical conversion repair and second phosphoric acid treatment. The solutes of the electrolyte of the first-stage chemical conversion, the second-stage chemical conversion and the third-stage chemical conversion comprise citric acid, triammonium citrate, adipic acid, ammonium adipate, salicylic acid, hypophosphite, boric acid and ammonium salt, and the solvent is water. The solutes of the electrolyte of the fourth-stage chemical conversion and the fifth-stage chemical conversion comprise citric acid, triammonium citrate, sebacic acid, ammonium sebacate, salicylic acid, sodium hypophosphite, boric acid and ammonium salt, and the solvent is water. An anode foil prepared by the preparation method has a high specific capacity and a small hydration leakage current.

The embodiment of the present invention provides a semiconductor structure and a method for forming the semiconductor structure, wherein the semiconductor structure comprises: a substrate, including an array region and a peripheral region, a first isolation structure in the peripheral region, a second isolation structure in the array region, the top opening area of ​​the first isolation structure being larger than the top opening area of ​​the second isolation structure; a first groove in the first isolation structure, and a first insulating structure for filling the first groove; the first insulating structure comprises at least a top insulating layer, the top surface of the top insulating layer is flush with the top surface of the substrate, and the top insulating layer comprises at least a low dielectric constant material. The embodiment of the present invention fills the first groove in the first isolation structure with the first insulating structure in the peripheral region, thereby preventing defects such as edge leakage from occurring in the shallow trench isolation structure in the peripheral region, thereby improving the yield of the final device formed, and preventing the performance loss of the shallow trench isolation structure.

The invention discloses a stereoscopic model for in-vitro culture of zebra fish intestinal organs and a preparation method thereof, and belongs to the technical field of aquaculture organs. The preparation method comprises the following steps: putting a zebrafish intestinal tract sample into PBS containing five antibodies, separating and cleaning to obtain intestinal tract tissues; carrying out vortex oscillation on intestinal tissues in the separation liquid, discarding the separation liquid, carrying out vortex oscillation in the chelating liquid, and filtering to obtain zebra fish crypt cell suspension; carrying out differential centrifugation on the cell suspension, and resuspending the precipitate in a DMEM culture medium to obtain an intestinal organ crypt suspension; the method comprises the following steps: inoculating crypt suspension into a mixed solution of a zebra fish intestinal organ culture medium and matrigel for in-vitro culture to obtain the zebra fish gut organ culture medium. The method solves the problem that the existing method for preparing the zebra fish intestinal organ in-vitro model with high budding rate and good effect lacks, provides a research tool for molecular mechanism research, disease simulation, drug effect screening and the like of intestinal diseases based on zebra fish intestinal organs, and has good application value.

The invention discloses a positive and negative pulse formation process for prolonging the floating charge life of a medium-large-density lead storage battery, and belongs to the technical field of lead-acid storage battery formation. The formation process comprises the following steps: standing; carrying out constant-current charging; primary pulse charging and discharging; discharging at constant current; carrying out secondary pulse charging and discharging; discharging at constant current; carrying out tertiary pulse charging and discharging; carrying out constant-current charging; judging capacity; carrying out fourth pulse charging and discharging; and constant-current charging is stopped. The specific parameters of the positive and negative pulse charging and discharging process are as follows: the current rising slope is 90-110 A / s, the amplitude of the positive pulse is 0.30-0.50 C, and the width is 3-6 s; the current drop slope is 90-110A / s, the amplitude of the negative pulse is 0.20-0.40 C, and the width of the negative pulse is 1-3s. By utilizing a pulse formation process, electrochemical corrosion of the positive grid can be avoided, and the floating charge life of the battery is prolonged.

The formation device comprises a base plate, reinforcing seats are fixed to the periphery of the bottom of the base plate, a protection frame is arranged on the top of the base plate, a first working motor is rotationally connected to one side of the inner wall of the protection frame, a first lead screw is fixed to the bottom of the first working motor, and a second lead screw is fixed to the bottom of the first working motor. The outer surface of the first lead screw is sleeved with a first supporting block, a left fixed block is fixed to the left side of the inner wall of the protection frame, a second working motor is rotationally connected to the other side of the inner wall of the protection frame, a second lead screw is fixed to the bottom of the second working motor, and the outer surface of the second lead screw is sleeved with a second supporting block. A plurality of anode terminals are electrically connected to the bottoms of the first supporting block and the second supporting block along the center, lower supporting blocks are rotatably connected to the opposite side faces of the left fixing block and the right fixing block, a plurality of battery holes are formed in the top faces of the two lower supporting blocks along the center, cathode terminals are electrically connected to the bottom sides of the interiors of the battery holes, and the lithium battery formation efficiency is improved.

A micro multi-color LED device includes two or more LED structures for emitting a series of color light. The two or more LED structures are vertically stacked to vertically and / or horizontally mix light emitted by the two or more LED structures and reflect upward via some of the reflective structures. In some embodiments, each LED structure is connected with a pixel driver and / or a common electrode. The LED structures are bonded together through the bonding layer. In some embodiments, a planarization layer encloses each LED structure or micro multi-color LED device. In some embodiments, one or more of a reflective layer, a refractive layer, a microlens, a spacer, and a reflective cup structure are implemented in the device to improve LED luminous efficiency. The display panel including the micro three-color LED device array has high resolution and high illumination brightness.

A micro multi-color LED device includes two or more LED structures for emitting a series of color light. The two or more LED structures are vertically stacked to vertically and / or horizontally mix light emitted by the two or more LED structures and reflect upward via some of the reflective structures. In some embodiments, each LED structure is connected with a pixel driver and / or a common electrode. The LED structures are bonded together through the bonding layer. In some embodiments, a planarization layer encloses each LED structure or micro multi-color LED device. In some embodiments, one or more of a reflective layer, a refractive layer, a microlens, a spacer, and a reflective cup structure are implemented in the device to improve LED luminous efficiency. The display panel including the micro three-color LED device array has high resolution and high illumination brightness.

The invention discloses a residual oil hydrotreating catalyst and a preparation method thereof, and belongs to the technical field of catalytic materials. The preparation method comprises the following steps: S1, mixing dolomite, cerous carbonate, a zirconium oxide precursor and a silicon dioxide precursor, drying and calcining to obtain a composite carrier, and performing in-situ pore forming by utilizing gas generated by decomposition of the dolomite and the cerous carbonate to form a mesoporous structure; s2, dipping the composite carrier in a modification liquid containing chitosan and mannuronic acid, and constructing a cross-linked network coating on the surface of the composite carrier through a Schiff base reaction to obtain a modified carrier; s3, dipping the modified carrier in a precursor solution containing a nickel source, a molybdenum source and a sulfur source, and performing adsorption, drying and roasting to obtain the catalyst. Through the synergistic effect of pore structure regulation and surface modification, the carrier with high porosity and suitable pore distribution is obtained, and meanwhile, high dispersion and stable loading of active metal components are realized. The catalyst shows excellent hydrodesulfurization, denitrification and demetallization performance in residual oil hydrotreatment.

The invention relates to a thick oil anti-drag liquid ring generator suitable for a bent pipe and controllable in thickness. The device is composed of a straight pipe, a bent pipe, a reducing pipe, an annular titanium steel sheet, a strap, a bolt, a nut, a multi-layer flow guide ring, a differential pressure transmitter and a data real-time acquisition system. The device can control the thickness of a lubricating layer in the thickened oil pipe transportation resistance reduction process, and meanwhile, the stability of the flowing state of a center thickened oil-liquid ring after the center thickened oil-liquid ring passes through a bent pipe under different lubricating layer thicknesses can be guaranteed. Wherein the thickness of the liquid ring can be controlled by tightening or expanding the annular titanium steel sheet by screwing the bolt, so that the gap between the reducing pipe and the annular titanium steel sheet is increased or reduced, the stability of the liquid ring can be ensured by a plurality of layers of flow guide rings, and the controllability of the thickness of a lubricating layer and the stability of flowing through the bent pipe are ensured.

The invention discloses a high-altitude layering method for efficient rooting of carya illinoensis variety seedling branches, and belongs to the technical field of asexual propagation of carya illinoensis. According to the method, high-altitude layering is performed in the growth season of the carya illinoensis, and rooting is promoted; xylem tissue with the thickness of 1-3 mm at a girdling opening is cut off, so that the repair and differentiation process of wound tissue towards the cortex direction is effectively inhibited; the girdling opening is coated with a rooting agent, the forming efficiency and number of root systems are remarkably improved, finally, a matrix containing a certain amount of garden soil is adopted for wrapping to promote rooting, the technical problem that the carya illinoensis variety seedlings are difficult to root is solved, and batch production of the variety self-rooted seedlings is achieved. According to the method, the rooting rate can reach 90% or above, and the rooting number reaches 20 roots per branch or above.

The invention relates to the technical field of detection reagent preparation, and discloses a stable oxidized low-density lipoprotein cholesterol detection kit and a preparation method thereof.The kit is composed of a component R1 and a component R2, the component R1 at least comprises a buffer solution, a sensitizer, a surfactant, a stabilizer, an anti-interference agent and a preservative, and the component R2 at least comprises a buffer solution, a sensitizer, a surfactant, a stabilizer, an anti-interference agent and a preservative; the component R2 at least comprises an ion buffer solution, a stabilizer, a sealing agent, an antibody-carboxyl microsphere conjugate and a preservative; the antibody-carboxyl microsphere conjugate is a conjugate of an oxidized low-density lipoprotein antibody and carboxyl microspheres. According to the formula of the oxidized low-density lipoprotein reagent composition, the reagent R1 and the reagent R2, the production cost is effectively reduced, the oxidized low-density lipoprotein reagent composition can be used on a full-automatic biochemical analyzer, the automation degree is high, compared with similar products, the oxidized low-density lipoprotein reagent composition has higher accuracy, repeatability and stability, and unexpected technical effects are achieved.

The invention relates to a low-water-consumption formation charging process. The process comprises the following steps: S1, clamping and fixing the end face of a semi-finished battery; s2, vacuumizing the inner cavity of the semi-finished battery, stopping vacuumizing when the vacuum degree of the inner cavity reaches delta 1, and injecting acid by adopting an acid injection nozzle until excessive acid is injected; s3, extracting excessive acid, and after acid extraction, lowering the liquid level to 0.3-0.5 time of the original liquid level before acid extraction; s4, vacuumizing the inner cavity of the semi-finished battery, stopping vacuumizing when the vacuum degree of the inner cavity reaches delta 2, and injecting acid by adopting an acid injection nozzle until excessive acid is injected; s5, extracting excessive acid, and after acid extraction, lowering the liquid level to 0.3-0.5 time of the original liquid level before acid extraction; s6, vacuumizing the inner cavity of the semi-finished battery, stopping vacuumizing when the vacuum degree of the inner cavity reaches delta 3, and injecting acid by adopting an acid injection nozzle until excessive acid is injected; and S7, extracting excessive acid, and carrying out charging formation. Compared with the prior art, acid filling is still needed when formation charging is carried out, the formation efficiency is improved, and water consumption is reduced.

The present invention relates to a battery acid adding machine, an acid adding method and a formation method, belonging to the technical field of storage batteries, and solves the problems in the prior art that air is easily introduced during the battery acid adding process, which affects the formation effect of the battery. In the acid adding machine of the present invention, the acid transition tube body and the battery are subjected to vacuum treatment respectively, thereby preventing the atmosphere from entering the battery during the acid adding process, so as to ensure that the battery interior is prevented from communicating with the atmosphere during the entire acid adding process. The acid adding method of the present invention can prolong the life of the storage battery, while also avoiding the problem of decreased conductivity caused by the generation of lead sulfate in the corrosion layer; it can reduce the difficulty of temperature control during formation, which is conducive to improving the formation effect. The acid adding method of the present invention can also avoid the adverse effect of the impact on the partition caused by the change of the acid adding pressure difference due to the change of atmospheric pressure during the prior acid adding process.

The disclosed embodiments provide a method, manufacturing system, equipment, medium and program for forming a gate oxide layer. The method for forming a gate oxide layer includes: obtaining multiple sets of parameter information of a gate oxide layer on a first wafer after a first machine performs multiple oxidation treatments on a first wafer; a set of parameter information of the gate oxide layer corresponds to a single oxidation treatment of the first wafer, and each oxidation treatment corresponds to different process parameters; based on the reference parameter information, selecting target set parameter information from multiple sets of parameter information, and using the process parameters corresponding to the oxidation treatment of the target set parameter information as actual process parameters; the reference parameter information is the parameter information of the gate oxide layer on the second wafer after a second machine performs oxidation treatment on the second wafer, and the types of the first machine and the second machine are different; generating a processing signal corresponding to the actual process parameters, and performing oxidation treatment on the second wafer. The above technical solution can improve the efficiency of forming a gate oxide layer.

The invention relates to a battery acid adding machine, an acid adding method and a formation method, belongs to the technical field of storage batteries, and solves the problems that in the prior art, air is easily introduced in the battery acid adding process, and the formation effect of a battery is affected. According to the acid adding machine disclosed by the invention, the acid transition pipe main body and the battery are respectively subjected to vacuum treatment, so that atmosphere can be prevented from entering the battery while acid is added, and the interior of the battery is prevented from being communicated with the atmosphere in the whole acid adding process. By adopting the acid adding method, the service life of the storage battery can be prolonged, and meanwhile, the problem that the conductivity is reduced due to the fact that lead sulfate is generated on the corrosion layer is avoided; the difficulty of temperature control during formation can be reduced, and the formation effect can be improved. By adopting the acid adding method disclosed by the invention, the adverse effect of impact on the partition plate caused by the change of the acid adding pressure difference due to the change of the atmospheric pressure in the existing acid adding process can be avoided.

The invention relates to a tunneling face dust control device which comprises an air pressing barrel arranged on one side of a tunneling roadway in the width direction and an air draft barrel arranged on the other side of the tunneling roadway in the width direction, and further comprises air guide devices arranged on the air draft barrel and the air pressing barrel correspondingly. The air guide device is located on one side of the tunneling roadway in the width direction and provided with a plurality of air ports which are arranged in a multi-layer mode and open towards the other side, and the included angle between the air flow guiding direction of the air ports and the radial plane of the tunneling roadway is adjustable. The air flow flowing through the multiple air ports of the air guide device arranged on the air draft barrel correspondingly forms a plurality of layers of negative pressure areas, the air flow flowing through the multiple air ports of the air guide device arranged on the air pressing barrel correspondingly forms a plurality of layers of air pressing dust control air curtains, and at least one negative pressure area corresponds to at least one air pressing dust control air curtain. According to the technical scheme provided by the invention, the blocking and treatment effects on dust in the tunneling roadway can be improved.

The canine tooth barb type umbrella-shaped three-dimensional freezing pipe is characterized in that at least one stretching wall ring surrounds the outer arm face of the freezing pipe, the stretching wall ring comprises a plurality of stretching walls, the end of the same side of each stretching wall is hinged to the outer arm face of the freezing pipe in the advancing direction of the freezing pipe, and the end of the other side of each stretching wall is of a canine tooth barb type structure; the freezing pipe is dragged in the reverse advancing direction, the soil body enters the space between the canine tooth barb type structure and the freezing pipe, the stretching wall is opened around the hinged end in different directions under the counter-acting force of the soil body, and an umbrella-shaped three-dimensional structure with the freezing pipe as the center is formed in the soil body. And cold energy in the freezing pipe is conducted into the surrounding soil body in multiple directions through the multiple extending walls for three-dimensional freezing. The method has the advantages that efficient three-dimensional freezing is realized, and the freezing efficiency is improved.

A micro multi-color LED device includes two or more LED structures for emitting a series of color light. The two or more LED structures are vertically stacked to mix the light emitted by the two or more LED structures vertically and / or horizontally and reflect upward via some reflective structures. In some embodiments, each LED structure is connected with a pixel driver and / or a common electrode. The LED structures are bonded together by a bonding layer. In some embodiments, a planarization layer encloses each LED structure or the micro multi-color LED device. In some embodiments, one or more of a reflective layer, a refractive layer, a microlens, a spacer, and a light reflecting cup structure are implemented in the device to improve the LED light emitting efficiency. A display panel including an array of micro tri-color LED devices has high resolution and high illumination brightness.

The application discloses a coaxial multi-atmosphere water guide laser processing device, which comprises a laser generating module, a light-water coupling module, a protective gas flow generating module and a composite nozzle assembly. The light-water coupling module couples the water jet and the laser by total reflection to form a laser water jet. The protective gas flow generating module comprises a first protective gas flow generating module and at least one second protective gas flow generating module, and can generate multiple layers of coaxial protective gas flows. The first protective gas flow spirally surrounds the outside of the laser water jet, and the second protective gas flow further surrounds the outside of the first protective gas flow. The composite nozzle assembly is composed of a first nozzle and at least one second nozzle which are coaxially nested from inside to outside. Finally, the output is a coaxial composite jet composed of the laser water jet and the multiple layers of protective gas flows. The application solves the technical problems that are difficult to simultaneously realize efficient water drainage, prevent molten material from splashing back and maintain the stability of the water jet in the prior art.

This invention discloses a silicon rod, silicon wafer, solar cell, segmented solar cell, solar module, and photovoltaic system. The silicon rod comprises: four arc-shaped corners along a plane formed by a first direction and a second direction; two symmetrically arranged side surfaces along a third direction; at least one groove on each side surface; and arc-shaped sidewalls of the grooves; wherein the first direction, the second direction, and the third direction are perpendicular to each other. This solution, by setting the four corners of the silicon rod to arc shapes with equal radii of curvature, and providing at least one arc-shaped groove extending along a third direction on the side surfaces of the silicon rod, allows for the slicing of the silicon rod to obtain silicon wafers, the fabrication of solar cells from the silicon wafers, the cutting of the solar cells to obtain multiple segmented solar cells, and the arrangement of these segmented solar cells to form a solar module. This reduces light leakage areas on the surface of the solar module, lowers internal circuit losses, and increases module power.

A micro multi-color LED device includes two or more LED structures for emitting a series of color light. The two or more LED structures are vertically stacked to vertically and / or horizontally mix light emitted by the two or more LED structures and reflect upward via some of the reflective structures. In some embodiments, each LED structure is connected with a pixel driver and / or a common electrode. The LED structures are bonded together through the bonding layer. In some embodiments, a planarization layer encloses each LED structure or micro multi-color LED device. In some embodiments, one or more of a reflective layer, a refractive layer, a microlens, a spacer, and a reflective cup structure are implemented in the device to improve LED luminous efficiency. The display panel including the micro three-color LED device array has high resolution and high illumination brightness.

The invention discloses a neural synapse bionic memristor with a composite two-dimensional material functional layer and a preparation method thereof, and the memristor comprises a substrate, a lower electrode layer, a composite functional layer, an upper electrode layer and a flexible protection film layer which are sequentially arranged from bottom to top. The composite functional layer comprises a resistive layer made of a two-dimensional material and a graphene barrier layer stacked and covered on the upper surface of the resistive layer, defect holes or spacing seams for forming conductive filaments during electrification are distributed on the graphene barrier layer, the upper electrode layer is an active metal electrode, and the lower electrode layer is an inert metal electrode. The resistive random access memory has the advantages that the resistive random layer and the graphene blocking layer are formed by the two-dimensional material, the defect holes or the spacing seams are formed in the graphene blocking layer, and due to the blocking effect of the graphene blocking layer, metal cations can only migrate downwards from the defect holes or the spacing seams and are gathered into conductive filaments; the forming efficiency of the conductive filament is relatively higher, and the forming position is relatively fixed, so that the cyclic switching stability of the memristor is improved to a certain extent.

This invention discloses a three-dimensional visualization organoid culture device, belonging to the field of organoid culture technology. It includes a control center, which is communicatively connected to a virtual three-dimensional scaffold module, a laser visualization monitoring module, a biolayer interference sensing module, and an automated culture medium control module. This invention abandons the traditional matrix gel solid scaffold and employs focused acoustic vortex technology to construct a dynamically adjustable virtual acoustic trap array. It utilizes acoustic radiation force to achieve cell capture and spatial arrangement, avoiding the interference of uncertainties in the composition and biocompatibility differences of solid scaffolds on organoid growth. Simultaneously, the acoustic trap array can adaptively reconstruct its topology according to the cell aggregation stage and metabolic state, solving the problem that traditional scaffold structures cannot adapt to dynamic cell growth, improving the morphological uniformity and physiological relevance of organoids, and providing a high-quality culture medium for organoid research and clinical applications.