76results about How to "Lower resistance" patented technology

The invention discloses a nicosulfuron-containing herbicidal composition and application thereof. The herbicidal composition is prepared from the following components: nicosulfuron, amicarbazone, and dimethyltetrachloroisooctyl ester as well as a dispersant, an emulsifier, a wetting agent, a thickening agent, an antifreeze, and a dispersion medium, wherein the dosage form belongs to a dispersed oil suspension agent. Through the combination of the three active ingredients, the herbicidal composition has an obvious synergistic effect, the use amount of pesticides is reduced, the cost and environmental pollution are reduced, the drug resistance of corn field weeds can be delayed by the application of the composition, and the control spectrum is expanded.

The application relates to a gallium nitride epitaxial structure forming method and a semiconductor device. The method comprises the following steps: sequentially forming a buffer layer, an intrinsic GaN layer and an AlGaN layer on a substrate; growing a P-type doped GaN epitaxial layer on the AlGaN layer, controlling the doping concentration and thickness of the P-type GaN layer, performing N-type ion implantation on the P-type GaN layer, controlling the implantation depth in the range of 20nm-30nm, and then performing annealing. In another mode, the AlGaN layer is subjected to P-type ion implantation before the P-type GaN layer is grown to form an asymmetric P-type doped area, and then annealing is performed, and the implantation area is still P-type after annealing by controlling the implantation dose. In the semiconductor device, the contact layer is obtained by patterning the P-type GaN layer, and the P-type doped area with the highest doping concentration or the largest doping area is arranged at the position of the contact layer. The gate breakdown voltage can be improved, the threshold voltage can be stabilized, the low on-resistance can be maintained, and the CMOS process compatibility can be realized.

The application provides an Ethernet-based linear series monitoring system and related equipment, the linear series monitoring system comprising a host device and a plurality of slave devices, a main power supply tap being led out from a secondary coil of each first coupling transformer, and an output end of a first power supply unit being connected with each main power supply tap; a primary tap being led out from a primary coil of each second coupling transformer, and a secondary tap being led out from a secondary coil of each third coupling transformer, a primary tap of an nth second coupling transformer in the same slave device being connected with a secondary tap of an nth third coupling transformer; and the primary taps of the N second coupling transformers in the same slave device all being connected with an input end of a rectifier unit. After the first power supply unit starts to supply power, parallel power supply is performed through 2N wires, so that the equivalent comprehensive line resistance is reduced, the voltage drop and loss are reduced, and the stability of line power supply is improved.

The application provides a data reading circuit of an MRAM chip, comprising: a to-be-tested storage unit, a first gating transistor connected in series with the to-be-tested storage unit, a reference unit, a second gating transistor connected in series with the reference unit, and a readout amplifier, wherein the reference unit has three optional reference resistance branches, including a working mode branch, a first test mode branch and a second test mode branch, the working mode branch is used for reading data of the to-be-tested storage unit, the first test mode branch is used for screening out fixed failure units and high-resistance state out-of-range failure units with an open-circuit failure type, and the second test mode branch is used for screening out fixed failure units and low-resistance state out-of-range failure units with a short-circuit failure type.

The invention discloses a preparation method of a carrier plate structure, the carrier plate structure and a semiconductor packaging structure. The preparation method of the support plate structure comprises the following steps: providing a support plate, wherein the support plate is provided with a first surface and a second surface opposite to each other in a first direction; modifying the support plate at a part of positions by using a laser induction process from one side of the support plate in the first direction, so that the support plate is provided with a modified area and a non-modified area, and the sizes of the modified area and the non-modified area in the first direction are equal to the size of the support plate in the first direction; performing etching treatment on the first surface in the modification area to form a first hole section which does not penetrate through the carrier plate; preparing a first conductive structure in the first hole section; performing etching treatment on the second surface in the modification area to form a second hole section communicated with the first hole section; and at least preparing a second conductive structure electrically connected with the first conductive structure into the second hole section.

This invention provides a battery pack and an electrical device, relating to the field of battery technology. The battery pack includes multiple pouch cells and connecting tabs. Each pouch cell includes a cell, a casing, and a current output terminal. The current output terminal is bonded to and sealed to the casing. A first end of the current output terminal is electrically connected to a cell, and the connection forms the outer edge of the current output terminal. The connecting tab electrically connects the current output terminals of at least two pouch cells. The current output terminals are welded to the connecting tab to form a first welding area. The resistivity of the connecting tab is less than the resistivity of the current output terminals. Along the lead-out direction of the current output terminals, the length between the outer edge of the first end of the current output terminal and the first welding area along the current transmission direction forms a current-carrying length A mm. The resistivity of the connecting tab is T Ωmm² / m, and the thickness of any current output terminal is D mm. 0.6 ≤ AT / D ≤ 24.04. This technical solution solves the problem in related technologies where pouch cells cannot meet the requirements for high-rate charging and discharging.

This invention relates to an electrochemical lithium-ion sieve-based lithium extraction apparatus and method, belonging to the field of electrochemical lithium extraction. The apparatus and method mainly comprise: a first end plate, a second end plate, and several electrolytic cell units assembled together. The electrolytic cell units are located between the two end plates. After brine and supporting electrolyte enter the electrolytic cell unit, due to the crisscrossing of the flow guide holes on the cathode and anode guide plates, the brine and supporting electrolyte flow to the cathode and anode respectively. Under the action of an electric field, lithium ions in the brine are absorbed by the lithium-deficient ion sieve on the cathode, transforming into lithium-rich ion sieves. Lithium ions from the lithium-rich ion sieve on the anode are released into the supporting electrolyte, transforming into lithium-deficient ion sieves. After draining the brine and supporting electrolyte, the apparatus is rinsed with pure water, and the brine and supporting electrolyte are exchanged, with the current direction changed, repeating the cycle to achieve selective extraction of lithium from the brine.

This invention relates to the field of polymer materials technology, specifically to a permanent antistatic ABS composite material based on polyethylene polyamine-aminated carbon nanotubes, its preparation method, and its application. The method includes: Step 1, basicizing carbon nanotubes; Step 2, mixing carboxylated carbon nanotubes, N,N'-dicyclohexylcarbodiimide, and 4-dimethylaminopyridine, adding N,N-dimethylformamide solvent, and then adding polyethylene polyamine to obtain polyethylene polyamine-aminated carbon nanotubes; Step 3, grafting the polyethylene polyamine-aminated carbon nanotubes with a styrene-maleic anhydride copolymer to obtain styrene-maleic anhydride-grafted polyethylene polyamine-aminated carbon nanotubes; Step 4, melting the styrene-maleic anhydride-grafted polyethylene polyamine-aminated carbon nanotubes with ABS to obtain a permanently antistatic ABS composite material. This preparation method uses polyethylene polyamine to aminate carbon nanotubes, improving the antistatic effect and mechanical properties of the ABS composite material.

This utility model belongs to the technical field of automotive electrochromic lenses, specifically disclosing an automotive anti-glare rearview lens with an improved conductive structure. It includes a front glass substrate, a rear glass substrate, a front transparent conductive layer and a rear mirror conductive layer respectively disposed on their inner sides, and an electrochromic layer structure sandwiched between them. Grooves are provided on the mating surfaces of the front and rear glass substrates for embedding a conductive structure composed of conductive silver paste, which is connected to the conductive layer. It has the following advantages: it achieves an embedded low-resistance conductive path, effectively improves the uniformity of electrochromic coating, enhances the bonding force between the conductive structure and the glass, avoids the problem of easy detachment of traditional screen-printed conductive layers, improves lens reliability and assembly yield, and is suitable for the structural compatibility requirements of frameless rearview mirror designs.

This application discloses a method for determining whether a frequency control line is short-circuited and its application in manufacturing transmission lines, belonging to the field of superconducting quantum chip manufacturing. The method for manufacturing the transmission line includes: providing a substrate having a substrate and a conductive layer, wherein the conductive layer provides a ground plane for the superconducting quantum chip, and the conductive layer also has a window exposing the substrate; forming a conductive line in the window, having a control end close to the superconducting quantum bit and a distal end far from the control end, the distal end being disconnected from the ground plane through a gap; and, under the condition that the conductive line is determined to be disconnected from the ground plane, electrically connecting the distal end to the ground plane. This method enables rapid manufacturing of transmission lines and determination of whether a frequency control line is short-circuited.

The application relates to a battery cell testing device, and relates to the technical field of battery cell testing.The battery cell testing device comprises a testing cabinet, an electric connecting sheet and a fastener.The testing cabinet comprises a current testing wire and a voltage testing wire.The electric connecting sheet comprises a first connecting part and a second connecting part.The first connecting part is provided with a connecting hole, and the current testing wire is embedded in the connecting hole.The second connecting part is connected with the first connecting part, and the second connecting part is connected with the voltage testing wire.The fastener is matched with the connecting hole, and the fastener and the first connecting part are used for pressing and fixing the current testing wire.The battery cell testing device provided by the application can reduce the resistance between the current testing wire and the electric connecting sheet, reduce the generated heat, and improve the accuracy of the testing result.

The utility model relates to the field of heating device discloses an electromagnetic heating device for injection molding machine, including material pipe protective sleeve shell, mix material pipe and electromagnetic heating group, the mix material pipe sets up in material pipe protective sleeve shell inner chamber, electromagnetic heating group sets up in material pipe protective sleeve shell, electromagnetic heating group includes first electromagnetic heating part, second electromagnetic heating part and third electromagnetic heating part, first electromagnetic heating part The second electromagnetic heating part and third electromagnetic heating part are all with control terminal electricity is connected. The utility model is arranged with multiple electromagnetic heating parts on mix material pipe, and each group of electromagnetic heating parts includes independently arranged heating pipe up and down, and the two poles of each heating pipe are connected with external high frequency power respectively, so that the electromagnetic coil generates alternating magnetic field, and the heat pipe generates high heat under the action of alternating magnetic field and transmits to mix material pipe, heats the material in different mixing stages in mix material pipe.

This invention belongs to the field of conductive materials technology, specifically relating to a silver-coated copper powder, its preparation method, and its application. A method for preparing silver-coated copper powder includes the following steps: S1, pretreating copper powder to obtain pretreated copper powder; S2, mixing the pretreated copper powder, reducing agent, additive, and solvent to obtain a copper powder mixture; the additive is dihydrogen phosphate and / or hydrogen phosphate; S3, mixing silver salt, complex, and solvent to obtain a silver complex solution; S4, mixing the copper powder mixture and the silver complex solution, reacting to obtain a silver-coated copper powder precursor; S5, post-treating the silver-coated copper powder precursor to obtain silver-coated copper powder. The addition of dihydrogen phosphate and / or hydrogen phosphate to the silver-containing reaction solution in this invention can lower the pH value of the copper powder mixture, improve the surface condition of the copper powder, and thus reduce the resistivity of the silver-coated copper powder.

The present application relates to a kind of cylindrical electrode paste and its preparation method.A kind of cylindrical electrode paste, by mass parts, including 15-20 parts of anthracite main material, 25-40 parts of residual anode, 3-10 parts of graphite fragment, 25-35 parts of coke, 15-30 parts of organic binder, 6-18 parts of bio-based binder. Among them, organic binder includes medium temperature pitch, anthracene oil, beta resin. Among them, bio-based binder includes carbonized hydrophobic composite modified wood bamboo powder, sodium carboxymethyl cellulose. The carbonized hydrophobic composite modified wood bamboo powder of the present application and sodium carboxymethyl cellulose are compounded to form a bio-based binder, which cooperates with the organic binder to ensure the bonding strength, high temperature resistance and electrical conductivity of the cylindrical electrode paste, while realizing the green and low-carbon utilization of biomass, solving the problems of high temperature failure, moisture absorption and easy caking, and many pores of traditional bio-based binder, reducing the resistivity and production cost, and improving the structural density and use stability.

The application discloses a kind of fibrous felt that can be all-weather fast recovery high viscosity crude oil, preparation method and its application.The fibrous felt includes the fibrous substrate formed by profiled cross-section fiber, and the binder layer, functional layer and hydrophobic coating sequentially loaded on its surface;Functional layer is used to generate Joule heat when energized and generate photo-thermal effect under light;The water contact angle of fibrous felt is greater than 140°.The application also provides its preparation method and application.The application integrates photo-thermal and Joule heat effect in the same felt, realizes all-weather operation ability;Use C-shaped or Y-shaped profiled cross-section fiber, accelerate the penetration and absorption of high viscosity crude oil;Through the synergistic effect of polypyrrole layer and MXene layer, the resistance is significantly reduced and the oil absorption time is shortened.The fibrous felt of the application has simple preparation process, and is suitable for all-weather oil spill recovery in complex environment such as ocean oil spill.

This invention relates to a semiconductor structure, a method for fabricating the semiconductor structure, and an electronic device. The semiconductor structure includes a substrate and a source / drain contact layer disposed on the substrate. The source / drain contact layer includes a first metal nitride layer and a second metal nitride layer stacked in a direction away from the substrate. The atomic percentage of nitrogen in the first metal nitride layer is less than the atomic percentage of nitrogen in the second metal nitride layer. This invention uses stacked metal nitrides to form the source / drain contact layer, which can reduce the resistance of the source / drain contact layer, improve semiconductor performance, and reduce costs.

The application discloses a kind of based on brain basic cognitive function multidimensional evaluation child reading ability promotion training method and system, method includes: obtaining the multidimensional brain function portrait data of child to be trained in multiple preset cognitive dimensions;According to multidimensional brain function portrait data, the weak dimension and its deviation degree that child to be trained exists in multiple preset cognitive dimensions are identified;According to each weak dimension and its deviation degree, the individualized training scheme of child to be trained is constructed and executed;Wherein, individualized training scheme contains the training task corresponding to each weak dimension;During the execution of training task, according to the real-time performance data of child to be trained, the difficulty parameter of training task is dynamically adjusted.Therefore, in the training process, the system can dynamically adjust the training difficulty according to the real-time performance of the child, so that the child is always in a state of moderate challenge, thereby effectively improving the pertinence, interest, efficiency and long-term compliance of child reading ability training.

The application belongs to the technical field of external diagnostic devices, and particularly relates to a memristor for detecting preeclampsia and a preparation method. The memristor comprises, from bottom to top, a bottom electrode layer, a functional layer and a top electrode layer along the thickness direction, the functional layer is a hafnium oxide film and a bismuth ferrite film, the hafnium oxide film and the bismuth ferrite film form a heterojunction structure, the bottom electrode layer is a conductive glass layer, and the top electrode layer is a conductive electrode layer. The application forms the functional layer with a heterojunction structure based on BiFeO3 / HfO2, promotes the migration of oxygen ions and the formation of conductive filaments, has excellent memristor characteristics and stable resistance switching behavior, can specifically respond to the abundant active oxygen in the serum of preeclampsia, changes the conductive path and the resistance switching behavior of the memristor by changing the oxygen vacancy dynamics and the oxidation-reduction characteristics in BiFeO3 / HfO2, realizes rapid detection of preeclampsia, and has excellent stability and reliability.

This invention provides an emulsifiable concentrate formulation comprising the active ingredients chlorpyrifos, oxazolidinyl acetamiprid, and isoxaflutole, wherein the weight ratio of chlorpyrifos, oxazolidinyl acetamiprid, and isoxaflutole is 1.2:17.8:12. It also includes Silway 241 and Atlox 4916, wherein the mass ratio of Silway 241 to Atlox 4916 is 0.1~0.15:3. The emulsifiable concentrate formulation provided by this invention has strong spreading and adhesion capabilities, which can improve the effective utilization rate of the herbicide solution, exhibit excellent control effects on weeds, and can slow down the development of weed resistance.

This invention relates to the field of biomedical materials, specifically to an antibacterial hydrogel, its preparation method, and its applications. The method involves first preparing thiolated tannic acid and copper-doped Prussian blue nanozyme (CuPB). Methacrylated gelatin is mixed with the thiolated tannic acid, followed by the sequential addition of CuPB, ε-polylysine, trehalose, horseradish peroxidase, and a photoinitiator. The mixture is stirred until homogeneous to obtain a photosensitive prepolymer solution, which is then photocured under visible light to obtain the antibacterial hydrogel. The antibacterial hydrogel prepared by this invention responds to changes in H2O2 concentration at the wound site: during infection, CuPB and HRP cascade catalyze the generation of reactive oxygen species, synergistically with ε-polylysine and copper ions to achieve multi-mechanism, highly efficient antibacterial action; simultaneously, it triggers oxidative crosslinking of the thiolated tannic acid, enhancing its mechanical properties and accompanied by color changes, thus aiding in monitoring the infection status; possessing excellent biocompatibility, antibacterial properties, and mechanical properties, it can be used in wound dressings, biosensors, and other fields.

The application provides a trench power device with a back source structure and a preparation method thereof. The preparation method comprises the following steps: forming a P-type body region and an N-type drift region on a surface layer of an N-type substrate; forming a trench, wherein the trench extends from the P-type body region to the N-type substrate; forming a gate dielectric layer on a surface of the trench, and filling a gate layer in the trench; forming an isolation layer, and forming a drain through hole in the isolation layer; performing N-type ion implantation on the drain through hole to form an N-type drain region in the N-type drift region; forming a drain electrode; etching a back surface of the N-type substrate to form a source through hole, wherein the source through hole exposes the P-type body region; and depositing a source electrode on the back surface of the N-type substrate and in the source through hole, wherein the source electrode is connected with the N-type substrate and the P-type body region. The drain electrode and the gate electrode are integrated on the front surface of the device, the trench gate structure is adopted to improve the unit density and the channel control ability, and the source electrode is connected with the P-type body region through the back surface deep groove contact, so that the source contact resistance is effectively reduced, and the heat dissipation capacity is improved.

The application discloses a preparation method of a self-template nitrogen-doped sugarcane residue biochar electrode material and application thereof, and the preparation comprises the following steps: placing repeatedly cleaned sugarcane residue in a tubular furnace, and performing low-temperature carbonization under a nitrogen atmosphere. Then, the product after low-temperature carbonization is uniformly mixed with potassium hydroxide with a certain mass ratio in a mortar, and then the uniformly mixed sample is placed in the tubular furnace to perform activation under a nitrogen atmosphere. Finally, the obtained activated product is neutralized with hydrochloric acid to neutralize excessive alkali, then washed with deionized water until neutral, and vacuum dried to obtain the self-template nitrogen-doped sugarcane residue biochar electrode material. In the application, cheap and easily obtained sugarcane residue is used as a raw material to prepare a tubular structure biochar for electric adsorption, and no additional template is needed. Compared with similar technologies, the electrode is more excellent in effect and lower in cost, achieves the purpose of waste treatment with waste, and is an effective technical approach to realize the double carbon.

This utility model relates to the field of connectors, and more particularly to a power signal integrated socket, comprising a core with several copper pins mounted on its inner side. The core includes a threaded connection portion and an integrally formed flange portion at one end of the threaded connection portion. A nut is threadedly connected to the threaded connection portion, and a waterproof gasket is fitted on the outer side of the threaded connection portion between the nut and the flange portion. In this power signal integrated socket, the flat portion of the threaded connection portion mates with a plug slot and a retaining slot, facilitating quick alignment and insertion of the plug. The threaded connection between the threaded connection portion and the nut is simple to operate and reliably fixed. Furthermore, the flange portion fits snugly against the inner wall of the panel, and the nut contacts the outer wall of the panel, achieving stable installation.

The application provides a push rod, a release device and a medical device. The push rod comprises a first conductor and a second conductor. The first conductor has an inner cavity extending through in the axial direction and comprises a conductive tube and a conductive spring. The proximal end of the conductive spring is electrically connected to the distal end of the conductive tube. The second conductor is at least partially arranged in the inner cavity and is non-electrically connected to the first conductor. The distal end of the second conductor is provided with a release area. The push rod can be quickly electrolytically released and has good push performance.

This invention belongs to the field of plant-derived pesticide technology, specifically relating to a method for preparing a juglone microemulsion and its insecticidal activity. The juglone microemulsion comprises juglone, an oil phase, an emulsifier, a co-emulsifier, and water, with the following mass percentage composition: juglone: ​​2.5–10%, oil phase: 5–25%, emulsifier: 5–15%, co-emulsifier: 5–35%, and the balance being water. The mass ratio of the emulsifier to the co-emulsifier is 1:0.5–1:3. The juglone microemulsion of this invention uses plant-derived juglone as the main active ingredient. The prepared juglone microemulsion is an O / W type microemulsion, a clear, stable brown liquid, which can be diluted and directly sprayed onto the leaves of crops to kill and repel insects.

The invention relates to the technical field of biological medicine, and particularly discloses a preparation method of a collagen and anti-propionibacterium acnes gamma protein combined preparation, and the preparation method of the collagen and anti-propionibacterium acnes gamma protein combined preparation comprises the following steps: preparing anti-propionibacterium acnes gamma protein; adding water into the anti-propionibacterium acnes gamma protein and the recombinant III-type collagen, stirring and mixing, adding glycerol and a neutralizing agent, and mixing to obtain a uniform solution; the preparation method comprises the following steps: dispersing carbomer with water, adding a preservative and a humectant, mixing, finally adding the uniform solution, and mixing to obtain the required collagen and anti-propionibacterium acnes gamma protein combined preparation. The combined preparation prepared by the method can be used for effectively treating acnes, is remarkable in curative effect, does not generate drug resistance, is short in treatment cycle, can quickly eliminate skin damage, promote cell growth and adhesion and repair skin barriers, and does not generate new rash after healing.

The application belongs to the technical field of new energy batteries, and discloses a new energy automobile battery soft connecting piece locking structure, which comprises a power storage assembly for storing electric energy and two fixed sheets, the power storage assembly is provided with two conductive assemblies for conducting electricity on one side, the two fixed sheets are both provided with clamping units for clamping the conductive assemblies on one side, the clamping unit comprises a lower clamping assembly and an upper clamping assembly for clamping the conductive assembly upwards and downwards, the stable connection of the power storage assembly and the fixed sheet provides basic support for the battery module, the clamping design of the lower clamping assembly and the upper clamping assembly ensures firm fixation of the conductive assembly through cross contact of the clamping strips, realizes stable current conduction, the conductive assembly improves the electric conductivity, reduces the resistance and reduces the electric energy loss through the copper sheet and the clamping plate contained in the conductive assembly, and the jacking reset assembly ensures automatic reset of the upper clamping assembly after long-term use, thereby maintaining stable clamping force.

This invention discloses a traditional Chinese medicine mouthwash, its preparation method, and its application, relating to the field of traditional Chinese medicine technology. The mouthwash is prepared from the following raw materials in parts by weight: 8-20 parts Rehmannia glutinosa, 8-15 parts Lonicera japonica, 6-15 parts Scutellaria baicalensis, 5-8 parts Coptis chinensis, 10-20 parts Forsythia suspensa, 10-25 parts Gypsum fibrosum, 5-10 parts Mentha haplocalyx, 3-6 parts Stevia repens, 4-8 parts honey, and 10-20 parts Crataegus pinnatifida. It has the effects of clearing heat and detoxifying, relieving pain and stopping bleeding, is non-irritating, does not produce drug resistance, and has no toxic side effects on the human body. It has anti-inflammatory and antibacterial effects, while preventing the occurrence and development of oral diseases. It utilizes the basic thinking of traditional Chinese medicine to apply the compatibility of natural herbs, and the raw materials are abundant, readily available, low in cost, and the preparation method is simple, suitable for industrial production. It has a significant and definite therapeutic effect on gingival redness, swelling, bleeding, purulent discharge, alveolar bone resorption, and loose teeth caused by kidney yin deficiency and excessive stomach fire.

This invention discloses an antimicrobial peptide, Cih1, and its applications. The amino acid sequence of antimicrobial peptide Cih1 is shown in SEQ ID NO.1. The antimicrobial peptide Cih1 provided by this invention is a cationic peptide, rich in cysteine ​​(-cys) residues, which can form an amphiphilic β-sheet secondary structure. This structure endows it with excellent antibacterial and antiviral activity, and can effectively inhibit the proliferation and invasion of pathogens in aquaculture water. Based on the broad-spectrum resistance of antimicrobial peptide Cih1 to pathogens, it can help aquatic animal hosts resist infection by various pathogens, and has broad application prospects in the field of anti-infective drug development for aquaculture.