15702results about How to "Stable structure" patented technology

The invention provides a modified three-dimensional porous carbon-based silicon-carbon negative electrode material and a preparation method thereof, and belongs to the technical field of lithium ion battery negative electrode materials. The preparation method comprises the following steps: mixing an organic carbon source and a conductive agent in a solution, and sequentially drying, curing and carbonizing the obtained mixture under an inert gas condition to obtain a modified carbon precursor; carrying out activating treatment on the modified carbon precursor under an inert gas condition to obtain a modified three-dimensional porous carbon skeleton; under the condition of protective gas, introducing silane gas into the modified three-dimensional porous carbon skeleton, and carrying out vapor deposition to obtain a silicon / modified three-dimensional porous composite material; and under the condition of protective gas, introducing carbon source gas into the silicon / modified three-dimensional porous composite material, and carrying out vapor deposition to obtain the modified three-dimensional porous carbon-based silicon-carbon negative electrode material. The prepared modified three-dimensional porous carbon-based silicon-carbon negative electrode material is low in expansion rate, good in cycle performance and excellent in conductivity.

The invention relates to the technical field of construction trolley equipment, in particular to three-layer overlapping assembly type underground station assembling trolley equipment which comprises a movable pedestal, a movable platform, a movable platform, a movable platform, a movable platform and a movable platform, wherein the movable pedestal is provided with a shear-type lifting platform which ascends and descends in the vertical direction; the fixed frame seat is fixedly mounted on the shear type lifting platform; the side wall assembling assembly comprises a horizontal connecting plate which is horizontally and movably mounted on one side of the fixing frame base and an L-shaped supporting plate which is mounted at the outer end of the horizontal connecting plate; the moving block is horizontally and movably mounted on the other side of the fixing frame base through a driving source, and a longitudinal beam supporting plate and a clamping jaw are mounted on the moving block; the arranged movable pedestal is matched with the fixed frame seat, so that a lifting function and a mounting site are provided, and the device can be suitable for splicing operation of a three-layer overlapping assembly type underground station; the equipment has mobility, the structure is stable and reliable in the construction process, and the requirement for gravity bearing of the prefabricated part can be met; quick positioning and assembling of the assembling position of the prefabricated part can be achieved, then the construction procedure is simplified, and the construction efficiency is improved.

The invention belongs to the technical field of recoverable epoxy resin, and relates to a degradable epoxy resin system material and application thereof, a body, a composite material and a recovery method thereof. The degradable epoxy resin system material comprises a first component and a second component, the first component comprises first epoxy resin and second epoxy resin, and the second component comprises a first curing agent, a second curing agent and an accelerant; the first epoxy resin is a mixture of one or more of glycidyl ether epoxy resin and glycidyl amine epoxy resin and accounts for 15-35% of the first component by mass, the second epoxy resin is selected from one or more of epoxy resin with the structure containing # imgabs0 #, and the second epoxy resin accounts for 60-80% of the first component by mass; the first curing agent is one or a mixture of more of alicyclic amines and accounts for 40%-60% of the second component by mass, the second curing agent is one or a mixture of more of polyether amines and accounts for 40%-60% of the second component by mass, and the accelerant accounts for 0.5%-3% of the second component by mass. The requirement for vacuum infusion of the wind power blade can be met.

The invention provides a sodium ferric pyrophosphate positive electrode material cooperatively doped with anions and cations, a preparation method of the sodium ferric pyrophosphate positive electrode material and a sodium ion battery, and relates to the field of sodium ion batteries. The anion and cation synergistically doped ferric sodium phosphate pyrophosphate positive electrode material comprises an inner core and a coating layer covering the outer surface of the inner core, the inner core comprises ferric sodium phosphate pyrophosphate, the coating layer comprises carbon, the chemical formula of the ferric sodium phosphate pyrophosphate is Na4-2yFe2.91-xQx (PO4) 2-yP2O7Fy, x is more than 0 and less than or equal to 0.3, and y is more than or equal to 0.03 and less than or equal to 0.08; q comprises at least one of Sn, Ni, Cu, Mg and Mn. The introduced Q positive ions and F negative ions can keep the crystal structure of the body material stable, and the positive ions and the negative ions have a synergistic effect, so that the band gap of the positive electrode material is reduced, the state density near the Fermi level of the positive electrode material is increased, the conductivity of the positive electrode material is enhanced, the specific capacity of the positive electrode material is improved, and the rate and the cycle performance are promoted.

The invention relates to the technical field of cable manufacturing, in particular to a wire drawing machine for cable manufacturing and a using method thereof.The wire drawing machine for cable manufacturing comprises a wire drawing machine body, a first stretching rotating roller, a second stretching rotating roller, a fixing box and a mold frame, and a control box body is fixedly installed on one side of the top of the wire drawing machine body through bolts; a first stretching rotating roller and a second stretching rotating roller are rotationally connected to the two ends of one side of the bottom of the control box body on the wire drawing machine body, a mold frame is fixedly installed at the center between the first stretching rotating roller and the second stretching rotating roller on the wire drawing machine body through bolts, and a plurality of wire drawing molds are installed in the mold frame in a staggered mode through bolts. The cleaning brush on the base ring cleans cable wires through rotating connection of the friction rolling wheels, cleaned metal powder and wire drawing lubricating liquid containing impurities enter the collecting box to be collected, adsorption cleaning is conducted through the movable magnet, the cleanliness of the lubricating liquid is improved, the subsequent processing quality of the cable wires is improved, and the service life of the cable wires is prolonged. The practical value is high.

The invention relates to the technical field of lithium ion batteries, and provides a lithium cobalt oxide composite material which comprises a core body and a coating layer coating the core body, the core body comprises O2-phase lithium cobalt oxide, and the O2-phase lithium cobalt oxide is doped with an element M; the coating layer comprises an oxide containing an N element; the M element comprises at least one of Al, Mg, W, Ti, La, Zr, Ni, Mn and Y; n comprises at least one of Al, Mg, Y, W, Nb, La, Zr, Ti and P. The lithium cobalt oxide composite material provided by the invention is used as a positive electrode material of a lithium ion battery, and the cycling stability of the lithium ion battery under high potential is improved.

The invention discloses a transition metal nitride and amorphous carbon composite coated and modified lithium manganese iron phosphate composite material as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The vanadium nitride / amorphous carbon is adopted to perform composite coating modification on the lithium manganese iron phosphate material, so that the composite positive electrode material is more stable in structure. The use of vanadium nitride reduces the coating amount of carbon, and avoids the problems of coating layer thickening caused by high carbon content and Li < + > diffusion hindering caused by reduction of tap density of active substances. Vanadium nitride not only has good conductivity, but also has good Li < + > conductivity transmission performance, Li < + > de-intercalation can be rapidly achieved, the conductivity of the material is improved, meanwhile, a Li < + > diffusion channel on the surface of the positive electrode material is further dredged and increased, and the capacity loss of the modified material is reduced.

The invention relates to the field of biomedical materials, in particular to a novel composite collagen material for wound repair, and particularly relates to a preparation method of the novel composite collagen material containing 21-type recombinant humanized collagen (ColpepA1 21) and application of the novel composite collagen material in wound repair. The ColpepA1 21 is used for remarkably promoting key biological reactions in the wound healing process, including accelerating cell migration, enhancing the skin hydration state and barrier function and improving the stability and elasticity of the skin structure, a novel composite collagen material is developed, wound healing and cell regeneration can be effectively promoted, and oxidative damage can be relieved.

The invention relates to the technical field of tokamak device parts, in particular to a supporting system for a polar field coil in a tokamak device. Comprising a toroidal field coil, two first polar field coils, two second polar field coils, two third polar field coils, two first supporting assemblies, two second supporting assemblies and a third supporting assembly, one first supporting assembly is used for fixedly connecting the top end of the toroidal field coil with one first polar field coil, and the other first supporting assembly is used for fixedly connecting the top end of the third polar field coil. And the other first supporting assembly is used for fixedly connecting the bottom end of the annular field coil and the other first polar field coil. Wherein one second supporting assembly is used for fixedly connecting the upper part of the toroidal field coil and one second polar field coil, and the other second supporting assembly is used for fixedly connecting the lower part of the toroidal field coil and the other second polar field coil. And the third supporting assembly is used for fixedly connecting the middle part of the annular field coil and the two third polar field coils.

The invention discloses multifunctional hydrogel and application thereof, and belongs to the technical field of biological medicine. According to the multifunctional hydrogel, ketal mercaptan with two hydrazide ends and oxidized dextran are cross-linked to form a cross-linked network containing dynamic covalent bonds. The preparation method comprises the following steps: dissolving ketal mercaptan with two hydrazide ends in deionized water to obtain a ketal mercaptan solution, dissolving oxidized dextran in deionized water to obtain an oxidized dextran solution, mixing the ketal mercaptan solution with the oxidized dextran solution, and standing to obtain the multifunctional hydrogel. The multifunctional hydrogel has pH / ROS dual responsiveness, can respond to inflammation microenvironment and low pH of infectious wounds, remove active oxygen, release therapeutic drugs, regulate macrophage polarization and relieve bacterial infection, thereby playing a key role in inflammation, proliferation and remodeling stages of wound healing to accelerate wound healing. The curcumin-encapsulated liposome is added into the multifunctional hydrogel, so that the antibacterial effect can be further improved.

The invention relates to the technical field of chemical degradation of waste polyester, and discloses a titanium-silicon compound catalyst, a preparation method thereof and a method for depolymerizing polyethylene glycol terephthalate. The preparation method of the titanium-silicon compound catalyst comprises the following steps: (1) preparing a titanium compound, an orthosilicate compound and a solvent, and reacting with an organic acid solution to obtain a solution; and (2) carrying out post-treatment on the solution to obtain the titanium-silicon compound catalyst. The catalyst has the characteristics of high PET depolymerization rate, low polymerization degree in a depolymerization product, high purity of a depolymerization product bis (2-hydroxyethyl) terephthalate (BHET) and low titanium residue in a target product in a PET degradation reaction. The BHET obtained by the method disclosed by the invention can be directly used for preparing PET polyester products or other high-added-value products, and closed-loop cyclic utilization of PET is realized.

The invention provides a redox imidazole covalent organic framework material as well as a preparation method and application thereof, belongs to the technical field of material preparation and photocatalytic preparation of hydrogen peroxide, and aims to solve the technical problem of low activity of a current covalent organic framework in preparation of hydrogen peroxide. The preparation method of the imidazole-connected redox type imidazole covalent organic framework material comprises the following steps: respectively reacting a reactant 2, 7-di-tert-butylpyrene-4, 5, 9, 10-tetraketone monomer with 4, 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ' The preparation method comprises the following steps: mixing 4, 4 '-(pyridine-2, 4, 6-triyl) tribenzaldehyde and a tri (4-formylphenyl) amine monomer, adding a solvent and a catalyst, uniformly stirring, and reacting to obtain the redox type imidazole covalent organic framework material after the reaction is finished. The application comprises the following steps: adding the covalent organic framework, oxygen and the sacrificial agent into water, and reacting under the irradiation of visible light. The preparation method is green, environment-friendly, simple and easy to implement, the prepared material has good thermal stability, and efficient visible light photocatalysis preparation of hydrogen peroxide can be achieved; meanwhile, the catalyst can be recycled and has good photocatalytic stability.

The invention provides an automobile control device foaming optimization control method based on multivariate temperature coupling analysis, and relates to the technical field of manufacturing process control, and the method comprises the following steps: based on supporting frame attribute characteristics and a material component ratio, according to a preset foaming processing stage and a foaming evaluation function, in a simulation foaming space, according to a foaming evaluation function; performing simulation optimization on the first temperature control parameter, the second temperature control parameter, the third temperature control parameter and the fourth temperature control parameter to generate an optimal temperature control strategy; and according to the preset foaming processing stage and the optimal temperature control strategy, executing foaming control of the target steering wheel. The technical problems that a traditional foaming technology pays more attention to control of single temperature, multiple influences of different temperature changes on foaming reaction cannot be effectively considered, foaming is not uniform, and the foam structure is not stable can be solved; by accurately controlling the four temperature control parameters, the mutual influence and coupling relationship among the temperatures can be fully considered, and uniform temperature distribution and stable foam structure in the foaming process are ensured.

The efficient and stable pocket processing mechanism comprises a portal frame, the portal frame is installed above a working panel, a first driving device is arranged on the portal frame and extends in the left-right direction, and the first driving device is used for driving a translation frame to translate in the left-right direction; a portal frame is installed above a working panel of a pocket machine rack, a first driving device and a translation frame are installed on the portal frame, a material fixing mechanism and a bag folding mechanism are installed on the translation frame, and the bag folding mechanism is located above the material fixing mechanism. The first driving device can drive the translation frame, the material fixing mechanism and the bag folding mechanism to jointly translate left and right, the translation reliability of the material fixing mechanism and the bag folding mechanism can be greatly improved through the arrangement of the portal frame, and the bag folding mechanism is more stable in structure; and the edge of a machining opening can be folded, and the machining efficiency is higher.

The invention discloses a preparation method and application of a biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst, the biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst comprises a substrate biochar particle and a MnFeO2 catalyst loaded on the substrate, MnFeO2 in the biochar-particle-loaded MnFeO2 catalyst is a catalyst, the catalyst can effectively inhibit metal leaching toxicity through a bimetal synergistic effect, and the biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst can effectively inhibit metal leaching toxicity. The electron transfer capacity of the catalyst is improved through combination of bimetal and biochar, so that the metal valence cycle speed is increased, and the material is good in stability, reusable, low in price and preparation cost, wide in applicable pH range and wide in application prospect in the field of water treatment.

The invention discloses an automatic garment pocket forming machine which comprises a rack, a working panel is arranged on the rack, a cutting mechanism, a sewing machine head and a portal frame are arranged on the working panel, a first driving device and a second driving device are arranged on the portal frame, and the first driving device is used for driving a material fixing mechanism to horizontally move left and right; the second driving device is used for driving the bag folding mechanism to horizontally move; the portal frame is installed on the rack, the first driving device and the second driving device are installed on the portal frame, and the circulating plate flowing mechanism is installed on the rack and used for clamping and driving a circulating plate to circularly flow between the forming accessory placing station and the initial station. The material fixing mechanism and the bag folding mechanism are driven by the sliding frame to conduct left-right translation separately, the translation reliability of the material fixing mechanism and the bag folding mechanism can be greatly improved through the arrangement of the portal frame, the structure is stable, the pressure bearing burden of the portal frame can be reduced by separating the material fixing mechanism from the bag folding mechanism, and high-speed and high-frequency work is met.

The invention discloses a carbon-coated sodium ferrous sulfate phosphate positive electrode material as well as a preparation method and application thereof. The carbon-coated sodium ferrous sulfate phosphate positive electrode material is square flaky particles formed by coating sodium ferrous sulfate phosphate with a conductive carbon material and irregular aggregates of the square flaky particles. The molecular formula of the sodium ferrous sulfate phosphate is Na (6-2x + y) Fex( SO4) (3-y) (PO4) y, x is more than 0 and less than 3, and y is more than 0 and less than or equal to 0.5. The invention also discloses a preparation method and application of the carbon-coated sodium ferrous sulfate phosphate positive electrode material. The positive electrode material has the advantages of phosphate and sulfate positive electrode materials, the voltage platform is high, the conductivity is excellent, the air stability is good, and the assembled battery has excellent chemical sodium storage performance, high discharge specific capacity, highly reversible charge-discharge reaction and good cycle performance. The method is simple in process, high in feasibility, low in raw material cost and easy to realize industrial production through a solution system.

The invention relates to a composite hydrogel dressing for promoting wound healing as well as preparation and application thereof, and belongs to the technical field of biological medicines. The hydrogel disclosed by the invention is prepared by mixing gelatin, oxidized dextran and metal ion modified metal-organic framework compounds (MOF-Ag and MOF-Cu). In the mixed solution, amino groups in the gelatin and aldehyde groups of the oxidized dextran are subjected to a Schiff base cross-linking reaction, and the composite hydrogel is formed after standing. The loaded MOF-Ag has antibacterial and anti-biofilm effects on staphylococcus aureus and escherichia coli, and the loaded MOF-Cu has similar superoxide dismutase activity and similar glutathione peroxidase activity, so that excessive active oxygen can be removed, and inflammatory response can be relieved. The obtained hydrogel has good biocompatibility, proper mechanical properties and biological adhesion, stable rheological properties, excellent antibacterial and anti-inflammatory functions and a certain hemostatic function.

The invention discloses a multistage safety response control method of an industrial and commercial liquid cooling energy storage system, and relates to the technical field of electric energy storage systems, a sensor network collects an operation state data time sequence matrix, and abnormal data cleaning is carried out on the time sequence matrix; the method comprises the following steps: preprocessing a vibration signal of a cooling system, extracting characteristic data of abnormal vibration through Fourier transform and energy distribution analysis, and positioning a time-frequency distribution abnormal region; generating a time sequence multivariable data set according to the characteristic data of the abnormal vibration, determining a cause label according to the fused time sequence multivariable data set, obtaining the inherent frequency and the resonant frequency of the cooling system in combination with simulation analysis, and matching and determining the cause of the abnormal vibration; an LSTW neural network is used for predicting the abnormal resonance risk, and corresponding countermeasures are taken for the cooling network according to the prediction result; unnecessary vibration caused by error adjustment is avoided, the relation between cooling efficiency and safety is balanced, and unnecessary power loss is reduced.

The invention discloses an epoxy group modified zwitterionic polymer / heparin composite coating and a preparation method thereof. The preparation method comprises the following steps: firstly, constructing an amino-containing adhesion layer on the surface of a substrate by adopting a dip-coating method; then, the substrate is soaked in a mixed solution of the zwitterionic polymer and the heparin, and grafting of the zwitterionic polymer and the heparin on the surface of the medical material is completed through incubation. The coating provided by the invention has excellent hydrophilicity, can form a hydration layer, provides a physical barrier, and remarkably prevents adhesion and colonization of microorganisms. The inhibition rate of the coating on escherichia coli and staphylococcus aureus exceeds 99%, protein adhesion is remarkably reduced in an anti-protein adhesion experiment, and the coating is simple in strategy design, has a potential application prospect in the aspect of preventing blood contact catheter related infection and thrombosis, and has a wide application prospect. The complication occurrence rate and the medical care cost can be reduced.

The invention discloses a photovoltaic array design simulation optimization method, and relates to the technical field of intelligent photovoltaic system optimization, and the method comprises the steps: designing a photovoltaic array according to a herringbone shape, and constructing a photovoltaic array three-dimensional model; based on the photovoltaic array three-dimensional model, a computer domain and boundary conditions, multi-physics field coupling simulation setting is carried out; training a machine learning model by using historical data, predicting interaction among different physical fields, and identifying a key region needing higher grid density according to conditions set by multi-physical field coupling simulation; dynamically adjusting the grid density according to the identified key area; operating multi-physics field coupling simulation by using the adjusted grid density, and evaluating the performance of the photovoltaic array; and adjusting the design scheme of the photovoltaic array according to the evaluation result. According to the method, through herringbone design and multi-physical field simulation, the grid is optimized in combination with machine learning, the photovoltaic array performance is comprehensively evaluated and improved, the photovoltaic technology innovation is promoted, and the cost is effectively reduced.

The invention relates to the technical field of sodium ion batteries, in particular to a sodium ferric sulfate positive electrode material and a preparation method and application thereof. The preparation method of the sodium ferric sulfate positive electrode material comprises the following steps: obtaining a carbon foam substrate; weighing raw materials according to the stoichiometric ratio of the sodium ferric sulfate positive electrode material, and adding the raw materials into a solvent to obtain a mixed solution; depositing the mixed solution on a carbon foam substrate by adopting an electrostatic spray deposition method to obtain a precursor film; and sintering the precursor film to obtain the sodium ferric sulfate positive electrode material. According to the preparation method, the carbon foam is adopted as a substrate material, the sodium ferric sulfate precursor is prepared through electrostatic spray deposition, and then the sodium ferric sulfate material is obtained through sintering treatment, so that the specific discharge capacity, the rate capability and the cycle performance of the sodium ferric sulfate material are all remarkably improved.

The invention belongs to the technical field of polymer heat conduction, and particularly relates to a preparation method of a high-heat-conductivity polymer with modified boron nitride as filler, which comprises the following steps: (1) dissolving boron nitride nanosheets into tetrahydrofuran, ultrasonically dispersing uniformly, adding a modifier for reaction, then removing tetrahydrofuran by using a rotary evaporator, transferring into deionized water, and drying to obtain a boron nitride nano-sheet; drying to obtain a modified boron nitride nanosheet; (2) dispersing carbon nanotubes in deionized water, stirring and carrying out ultrasonic treatment, adding the modified boron nitride nanosheets, and then carrying out freeze orientation treatment and freeze drying treatment to obtain a porous foamed composite heat-conducting filler; and (3) carrying out melt blending on the composite heat-conducting filler and polyethylene glycol terephthalate, and carrying out hot press molding to finally prepare the modified high-heat-conductivity polymer. According to the invention, the composite heat-conducting filler improves the interfacial compatibility and dispersity with a polymer matrix, and reduces the interfacial thermal resistance of the composite material, so that the modified polymer has good application in the aspect of heat dissipation of electronic equipment.

The invention provides a sunshade curtain assembly, a glass assembly and a vehicle. The sunshade curtain assembly comprises a sunshade curtain, a rolling assembly and a driving assembly. The rolling assembly comprises a supporting piece used for rolling the sunshade curtain. The driving assembly comprises a speed reducer and a motor, a center shaft of the speed reducer coincides with a center shaft of the motor, the center shaft of the speed reducer and the supporting piece extend in the same direction, and one end of the supporting piece penetrates through the speed reducer and is rotationally connected with the speed reducer. The motor drives the supporting piece to rotate through the speed reducer, and therefore the sunshade curtain is rolled. The central axis of the speed reducer and the central axis of the motor coincide, the driving assembly can only occupy the size space of the vehicle in one direction, the occupied space is small, the size can be reduced, the occupied space is reduced, arrangement of other parts is facilitated, the vehicle sky screen view is wider, and more arrangement space is provided for vehicle body metal plates. The motor and the speed reducer are coaxially arranged without a cantilever, so that the motor is more stable in structure and free of deflection in the operation process, and the risk of vibration and abnormal sound is reduced.

The invention provides a positive pole piece, a preparation method thereof and a battery cell, the positive pole piece comprises a current collector, and a first film layer and a second film layer which are sequentially arranged on the current collector, the material of the first film layer comprises a lithium-rich manganese-based material, and the material of the second film layer comprises lithium transition metal phosphate. The lithium transition metal phosphate particles and the lithium-rich manganese-based material particles can be directionally arranged through layered arrangement, so that crystal lattice cracks caused by expansion and shrinkage differences of the particles during direct mixing are reduced, and the stability of a conductive network is maintained; the lithium transition metal phosphate is arranged on the second film layer, and the lithium-rich manganese-based material is arranged on the bottom layer, so that the overcharge of the lithium-rich manganese-based material can be effectively relieved, the structural stability of the material is maintained, and the Li2MnO3 phase is ensured to slowly release lithium, thereby stably and permanently supplementing lithium for the phosphate.

The invention discloses carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops as well as a preparation method and application thereof, and relates to the technical field of eye drops and medical biogel. The carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops are prepared from tannic acid modified carboxymethyl chitosan and adipose tissue-derived stromal cell exosome freeze-dried powder, the carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops provided by the invention can effectively treat xerophthalmia, and are stable in components, safe and reliable. The three components including the tannic acid modified carboxymethyl chitosan, the hyaluronic acid and the adipose tissue-derived stromal cell exosome coexist, so that the functions of all the components can be fully played, a synergistic effect is achieved, and a better treatment effect on xerophthalmia is achieved.

The invention belongs to the technical field of medical materials, and particularly relates to a seawater self-adhesive wound dressing capable of rapidly stopping bleeding and a preparation method of the seawater self-adhesive wound dressing. The electrospun fiber wound dressing provided by the invention contains an efficient hemostatic, and can quickly promote blood coagulation, shorten the hemostasis time and provide timely and effective first-aid measures for patients. By means of the multi-layer structural design, especially the self-adhesive waterproof layer, seawater permeation can be effectively prevented, wounds are protected against seawater erosion, and the infection risk is reduced. The composite breathable film with the gradient aperture design is adopted, it can be guaranteed that water vapor in the wound area is discharged smoothly, invasion of outside moisture and bacteria can be blocked, and the wound is kept dry and clean. The electrospun fiber wound dressing provided by the invention has the advantages of rapid hemostasis, seawater erosion prevention, excellent self-adhesion, good air permeability, structural stability and the like, and is a wound dressing suitable for wound treatment in marine emergency rescue and daily marine activities.

The utility model discloses an extrusion cooling device for MPP cable protection tube processing, which belongs to the technical field of MPP cable protection tube processing, and is characterized by comprising a base, the top of the base is fixedly connected with a cooling assembly, the top of the base is fixedly connected with a spraying assembly, the cooling assembly comprises a supporting frame, and the supporting frame is fixedly connected with the spraying assembly. The supporting frame is fixedly connected to the top of the base, the sealing heads are fixedly connected to the interior of the supporting frame, the cooling channel is fixedly connected between the opposite sides of the sealing heads, and the cooling pipe is fixedly connected to the interior of the cooling channel. The structure of the pipe is stabilized from the inside through preliminary cooling, stress concentration possibly generated by shock cooling is reduced, and therefore the quality of the pipe is improved, spraying cooling of the pipe is achieved through the spraying assembly, the effect of rapidly reducing the surface temperature of the pipe is achieved, and the pipe rapidly reaches the state close to the normal temperature.

The invention relates to the technical field of robots, and discloses a hip structural part of a humanoid robot and the humanoid robot. Wherein the hip structural part is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are roughly constructed into isosceles triangle structures with the same size, and one waist edge of the first connecting part and one waist edge of the corresponding second connecting part are connected with one leg structure; and the other waist edge of the first connecting part and the other waist edge of the corresponding second connecting part are connected with the other leg structure. The top edge of the isosceles triangle structure is used for being connected with the waist structure of the humanoid robot, the stability of the triangle is utilized, and the hip is stable in overall structure, high in bearing capacity and not prone to deformation and damage.

The invention provides a sunshade curtain assembly, a glass assembly and a vehicle. The sunshade curtain assembly comprises a sunshade curtain, a rolling assembly and a driving assembly. The winding assembly comprises a first rotating wheel and a transmission part. The driving assembly comprises a speed reducer and a motor, the center axis of the speed reducer coincides with the center axis of the motor, and the center axis of the speed reducer is perpendicular to the length direction of the transmission part. The motor can drive the transmission part to rotate through the speed reducer and the first rotating wheel in sequence so as to drive the sunshade curtain to move. The central axis of the speed reducer and the central axis of the motor coincide, so that the driving assembly can only occupy the size space of the vehicle in one direction, the occupied space is small, the size can be reduced, the occupied space is further reduced, arrangement of other parts is facilitated, the field of view of a vehicle sky screen is wider, and more space capable of being arranged is provided for a vehicle body metal plate. Moreover, the motor and the speed reducer are coaxially arranged without a cantilever, so that the motor is more stable in structure and free of deflection in the operation process, and the risk of vibration and abnormal sound is reduced.