240results about How to "Avoid structure" patented technology

The invention relates to the technical field of secondary batteries, in particular to a composite material and a preparation method thereof, a negative electrode current collector, a metal battery and an electric device. The composite material provided by the invention comprises an MXene material, and the MXene material comprises a surface functional group; the silver nanoparticles are grown on the surface of the sheet layer of the MXene material in situ; the modified bacterial cellulose comprises bacterial cellulose and oxygen-containing functional groups modified on the surface of the bacterial cellulose; the modified bacterial cellulose is loaded on the surface of the MXene material; wherein the loading mode of the modified bacterial cellulose at least comprises intermolecular interaction between an oxygen-containing functional group of the modified bacterial cellulose and a surface functional group of the MXene material. The composite material provided by the invention has excellent lithium-loving performance, and can delay the formation of lithium dendrites, so that the electrochemical performance of the metal battery can be improved.

The invention discloses a high-cycle-performance aqueous battery, which comprises an aqueous electrolyte, a negative electrode, a first positive electrode and a second positive electrode, wherein the first positive electrode and the second positive electrode are positioned on two sides of the negative electrode, and a first diaphragm and a second diaphragm are respectively arranged between the first positive electrode and the negative electrode and between the second positive electrode and the negative electrode; the battery is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with the first positive electrode and the second positive electrode to control switching of the positive electrodes in the charging and discharging loop, and every time discharging and charging circulation are completed, the electromagnetic valve switches the electrode connection relation, and the first positive electrode and the second positive electrode are alternately connected into the charging and discharging loop. Switching of the two positive electrodes in the aqueous battery is accurately controlled through the electromagnetic valve, a positive-negative battery structure is formed in real time, the double positive electrodes alternately perform lithium removal-lithium intercalation reaction, excessive Li intercalation or insufficient positive electrode reduction caused by long-term charging and discharging of a single positive electrode is avoided, the structural stability of the positive electrode material is improved, and the service life of the battery is prolonged. The cycle life and the electrochemical performance stability of the aqueous battery are obviously improved.

The invention belongs to the field of geological research, and discloses a disintegration instrument capable of eliminating water turbidity in the loess disintegration process and a use method thereof, the disintegration instrument comprises a support, a transparent water tank, a camera and a data acquisition device; a water pump is arranged in the transparent water tank; a plurality of stacked filtering water tanks are arranged on the transparent water tank, a seepage hole-containing water pipe is arranged in the filtering water tank on the top layer, and one end of the seepage hole-containing water pipe is connected with a water outlet pipe arranged on a water outlet of the water pump; fully-paved filter cotton is arranged at the bottom of each filter water tank, every two adjacent layers of filter water tanks are connected through a bottom filter type drain pipe, a connected filter water return pipe is arranged on a water blowing port of the bottom filter type drain pipe of the filter water tank at the bottom layer, and the other end of the filter water return pipe is located in the transparent water tank; a tension sensor is arranged on the bracket, a connecting ring is arranged on the tension sensor, a filter screen for bearing a loess sample is arranged on the connecting ring, and the filter screen is positioned in the transparent water tank. And suspended sediment generated by the test can be effectively removed, and the accuracy of data is ensured.

The invention relates to a negative electrode material and a preparation method thereof, and a lithium ion battery, the negative electrode material comprises a porous carbonaceous material and a silicon material, the negative electrode material has a first region located in the central region in the porous carbonaceous material, a second region distributed on the surface of the first region, and a third region distributed on the surface of the second region, the porous carbonaceous material located in the first area has first pores, the porous carbonaceous material located in the second area has second pores, the porous carbonaceous material located in the third area has third pores, at least part of the first pores are communicated with the second pores, at least part of the second pores are communicated with the third pores, and the third pores are communicated with the third pores. At least part of the third pores are communicated with the surface of the negative electrode material, the silicon material is distributed in at least one of the first pores, the second pores and the third pores, the pore diameter of the first pores is 0.1-2.2 nm, the pore diameter of the second pores is 1.8-5 nm, the pore diameter of the third pores is 3-60 nm, and the probability entropy H of the pores in the porous carbonaceous material meets 0.96 gt; hgt; and 0.70%.

The application provides a target text generation method and device, electronic equipment and computer program product, and belongs to the field of artificial intelligence. The method comprises the following steps: obtaining a target text writing requirement input by a user, processing the target text writing requirement to obtain a structured writing parameter; generating an initial text outline according to the structured writing parameter, generating a target text outline according to an instruction of the user to the initial text outline; generating corresponding text content according to the target text outline in a chapter order, maintaining a global memory in the generation process, wherein the global memory is used to store structured information of generated chapters; performing consistency checking on a currently generated chapter, and performing a correction operation according to a result of the consistency checking; and splicing and combining the generated chapters into a target text and outputting the target text.

This invention provides a surface acoustic wave (SAW) filter, comprising a piezoelectric layer and interdigitated electrodes. The interdigitated electrodes are disposed on the piezoelectric layer and include at least a first metal layer and a second metal layer stacked together. The first metal layer is made of platinum or an alloy with platinum as the main component, and the second metal layer is made of aluminum or an alloy with aluminum as the main component. By setting the material of the second metal layer to aluminum or an alloy with aluminum as the main component, the uniformity of metal coverage of the electrode structure can be effectively improved, avoiding excessive local resistance or structural defects caused by poor coverage. Setting the material of the first metal layer to platinum or an alloy with platinum as the main component provides reliable support for the second metal layer, reducing the risk of deformation or corrosion of the aluminum layer in subsequent processes. By using a stacked structure of two complementary materials for the interdigitated electrodes, both structural miniaturization and improved overall electrical performance and structural reliability of the interdigitated electrodes are achieved.

The application belongs to the field of new materials, and discloses a lead-free perovskite X-ray shielding composite material and a preparation method and application thereof, and comprises the following steps: mixing ANF / DMSO dispersion liquid with ethanol to obtain re-protonated ANF dispersion liquid; mixing the re-protonated ANF dispersion liquid, CsI powder and ethanol, and stirring to obtain two portions of the same CsI / ANF dispersion liquid; mixing re-protonated ANF, Cs3Bi2I9 powder and ethanol, and stirring to obtain Cs3Bi2I9 / ANF dispersion liquid; sequentially filtering the first portion of CsI / ANF dispersion liquid, the Cs3Bi2I9 / ANF dispersion liquid and the second portion of CsI / ANF dispersion liquid by using a gel-gel method, and vacuum hot-pressing to obtain a composite gradient film with a biomimetic symmetrical structure, which is used as a lead-free perovskite X-ray shielding composite material; and the application realizes continuous and efficient X-ray shielding effect, and can improve the mechanical flexibility and thermal stability of the material.

The utility model discloses an overwater cast-in-place simply supported beam dismantling device which is suitable for the field of bridge dismantling. Comprising a buoyancy tank platform for providing overwater operation support and transportation in the overwater cast-in-place simply supported beam dismantling process, an SPMT module transport vehicle capable of adjusting the height of a vehicle body, a bracket with the bottom capable of allowing the SPMT module transport vehicle to enter, and a hydraulic lifting device with the height capable of being increased to a preset height so that the to-be-dismantled cast-in-place simply supported beam can be separated from a support. Compared with an existing blasting device or a floating crane dismantling device, the device has the advantages that modular design and assembly are efficient, the device can be repeatedly used for other bridge engineering, the construction cost is low, the whole beam body is dismantled through hydraulic synchronous jacking, chippings are prevented from polluting water, and environmental protection and construction safety are both achieved.

The utility model relates to permanent magnet motor technical field, concretely relates to a kind of permanent magnet motor suitable for oilfield pumping equipment, including speed reducer, the input end of speed reducer is fixedly connected with input shaft, the outside of one end of input shaft is fixedly connected with shaft sleeve, the outer wall of shaft sleeve is fixedly connected with rotor iron core, the outer wall of rotor iron core is fixedly connected with multiple equidistance evenly distributed permanent magnet, the outer wall of speed reducer near input shaft is fixedly connected with mounting flange, the side wall of mounting flange is provided with front end cover, and the side wall of front end cover is provided with machine shell.Compared with prior art, after the structure design of increasing air gap is used, even if slight axial displacement or radial swing occurs in the running process of rotor iron core, the interference between permanent magnet and stator iron core can be effectively avoided, and the reliability and adaptability of motor under high impact, high vibration working condition are improved.

The utility model relates to the technical field of denture base, and disclose a kind of wear-resistant deformation-resistant denture resin base of surface hardening treatment, including edge buffer area, the edge buffer area includes gum attachment point one, gum attachment point two and tooth site groove, the gum attachment point one, the gum attachment point two are located in adjacent position, and the tooth site groove is set in the top of gum attachment point one, gum attachment point two. The gum attachment point one of edge buffer area, gum attachment point two is the structure for adapting oral gum, can be closely attached to gum to avoid gap and food residue accumulation, top tooth site groove can be accurately positioned, ensure that anterior teeth area, transition side tooth area, plate tooth and oral cavity mastication area correspond, improve oral cavity adaptability and initial positioning accuracy;Through the nanometer ceramic modified resin surface hardening layer covered by each area top surface, can effectively resist the wear caused by anterior teeth area cutting, plate tooth grinding and labial and buccal side friction, prolong the service life of base surface.

The utility model belongs to the field of quick assembly, provide a portable installation structure and comb grass machine, including machine body, lithium battery, apron and turnover framework. Compared with prior art, the utility model's advantage lies in setting positioning portion and anti -drop portion at every lithium battery bottom, cooperation positioning slot and mounting groove in machine body, so that multiple lithium batteries can be automatically guided and abutted to positioning when assembling, realize quick, accurate positioning installation, significantly improve the assembly efficiency, apron and turnover framework are stacked along the vertical direction in turn, make full use of space, the overall structure is compact, form multistage mechanical pressure locking to lithium battery, effectively prevent lithium battery from loosening or falling off because of vibration or external force during use or movement, improve the safety and stability of equipment operation, the structure avoids the use of a large number of screws, improves the assembly and disassembly efficiency, provides the convenience for subsequent maintenance and replacement.

The invention discloses a tube nest type paraffin heat storage device, and relates to the technical field of heat storage devices, the tube nest type paraffin heat storage device comprises an outer shell, a mounting shell and a plurality of groups of tube nest assemblies, each tube nest assembly comprises a fixing frame, a plurality of heat storage tubes and tube hoops used for fixing the heat storage tubes, and each heat storage tube comprises a tube body, a heat storage medium and a heat exchange promoting mechanism. The heat exchange promoting mechanism is arranged in the pipe body and used for removing solid paraffin solidified on the inner wall of the pipe body in the heat release process and pushing the solid paraffin towards the inner wall of the pipe body in the heat absorption process so as to promote heat exchange. The heat exchange promoting mechanism is arranged in the heat storage pipe, solid paraffin solidified on the inner wall of the pipe body can be effectively removed in the heat release stage, heat resistance is reduced, it is ensured that heat is smoothly transmitted to liquid paraffin, and heat release is completed; and the contact area between the paraffin and the pipe wall is increased, and efficient absorption of heat is promoted.

A catalyst for coupling pyridine to prepare 2,2-bipyridine and a preparation method thereof, relates to the technical field of catalyst preparation. The catalyst takes nickel oxide as an active component, enhances the basicity of the catalyst surface by introducing an auxiliary element, loads the active component on alumina by a deposition precipitation method, and is prepared by kneading and extruding into a strip. The method is simple in preparation and low in cost. The obtained catalyst can make the conversion rate of pyridine reach 14.98% and above under low temperature reaction conditions of 110 DEG C, the selectivity of 2,2-bipyridine is as high as 80% and above, and the catalyst has good catalytic activity and application prospect.

The invention provides a multi-dimensional vibration platform with oppositely-arranged double-sandwich piezoelectric actuators and an excitation method of the multi-dimensional vibration platform, and belongs to the technical field of high-frequency vibration engineering and micro-nano machining.The vibration platform comprises a center platform, the two oppositely-arranged piezoelectric actuators, two end covers and two bolts, wherein the center platform is integrated with the tail end platform, the two flexible hinges and the two amplitude-change poles, and the center platform is slender and is in mirror symmetry about the longitudinal symmetry plane of the tail end platform. The piezoelectric actuator comprises a longitudinal vibration ceramic group, a bending vibration ceramic group around the Y axis and a bending vibration ceramic group around the Z axis, translation along the X / Y / Z axis and rotation around the Y / Z axis can be realized through in-phase or anti-phase excitation different combinations under the condition of not increasing extra driving channels, and five-degree-of-freedom high-frequency micro-vibration output can be achieved at most. The structure has high symmetry, low parasitic vibration, compact size and high integration, and is suitable for precise engineering scenes such as micro-nano processing, laser-assisted manufacturing, cell manipulation and active vibration suppression.

The application belongs to the technical field of biological medical materials, and discloses a polydopamine modified modified nano-graphyne and a preparation method and application thereof. In the method, the polydopamine coating is combined with the nano-graphyne for the first time to construct a GDY@PDA composite system, and the core defects of the blocky graphyne, such as easy agglomeration, poor water solubility and insufficient biocompatibility, are solved. The graphyne-based material is applied to the near-infrared two-region photothermal regulation of neural cell calcium influx for the first time, the calcium ion channel is activated through the local thermal effect of the material, and precise, remote and reversible calcium influx regulation is realized; the limitation that the traditional biocompatibility modification is easy to fall off and difficult to functionalize is broken through, the polydopamine modification makes the material have both photothermal efficiency and biological safety, and the application of the graphyne in the treatment of neural diseases (such as neural cell injury repair) is expanded.

This invention discloses a hydrocolloid material containing guaiac, its preparation method, and its application, belonging to the field of medical care materials technology. It includes a backing layer and a hydrocolloid functional layer. The hydrophobic elastomer matrix comprises polyisobutylene, styrene-isoprene-styrene block copolymer, tackifying resin, liquid paraffin, and optionally caprylic / capric triglycerides. The pre-wetted hydrophilic absorbent powder comprises sodium carboxymethyl cellulose, pectin, gelatin, calcium alginate, sodium alginate, and caprylic / capric triglycerides. The composite plant repair oil comprises a phellodendron amurense lipid dispersion, Lithospermum erythrorhizon-Angelica dahurica extract, borage oil, sandalwood seed oil, borneol, and DL-α-tocopherol. The guaiac nanoliposome lyophilized powder is obtained by sequentially coating a guaiac nanoliposome aqueous dispersion with quaternized chitosan and sodium hyaluronate, then adding a lyophilization protectant and freeze-drying. This invention solves the problems of poor dispersion stability, easy degradation, insufficient soothing and repairing ability of guaiac, and instability in oil-water blends.

The utility model discloses a drill bit transportation protection device for petroleum drilling, and relates to the technical field of drill bits, the drill bit transportation protection device comprises a protection box, the bottom of the inner wall of the protection box is fixedly connected with a bearing base, the top end of the protection box is movably connected with a box cover in an inserted mode, the inner wall of the protection box is provided with a clamping assembly, and the clamping assembly comprises a vertical guide rail. The inner wall of the vertical guide rail is slidably connected with a vertical sliding block. Through the linkage design of the box cover and the lower pressing rod, automatic triggering of the clamping assembly is achieved. When the box cover is closed, the clamping arc plates can be driven to synchronously move and rapidly clamp the drill bit without additional operation, the clamping force is automatically adjusted along with the closing degree of the box cover, the device adapts to drill bits of different sizes, the universality of the device is improved, the arc block springs and the pressure-bearing springs provide vertical and transverse buffering effects correspondingly, and a three-dimensional buffering system is formed. In the transportation process, vibration energy generated by road bumping, collision and the like can be effectively absorbed.

This invention relates to the field of image generation technology, and more particularly to a method for generating bird's-eye view images of reservoir landscapes based on a Stable Diffusion large model. The method includes the following steps: preprocessing acquired reservoir landscape images and semantically annotating them based on water conservancy terminology to construct an image-text pairing dataset; training a pre-trained Stable Diffusion model, incorporating LoRA adaptation parameters into its UNet attention layer, using the image-text pairing dataset to generate a target feature image; and updating the LoRA adaptation parameters based on the difference between the target feature image and the reservoir landscape image to obtain a LoRA model for the reservoir landscape bird's-eye view image. This invention achieves structurally controllable and semantically consistent reservoir landscape generation by fusing structural reference constraints and semantically weighted alignment and introducing LoRA modulation.

The invention relates to the field of glass, in particular to ultrathin flexible cover plate glass as well as a preparation method and application thereof. The glass is composed of 10-30% of UTG cullet and 70-90% of a specific batch and contains SiO2, Al2O3, Na2O and the like, and the decolorizing agent is prepared by compounding NaNO3 and K2O according to the ratio of 1: 0.2-1: 1. The preparation method comprises the following steps: adding cullet at 1000 DEG C and 1200 DEG C in two stages, carrying out heat preservation and homogenization at 1200-1300 DEG C for 30-60 minutes, and carrying out melting clarification at 1500-1600 DEG C and temperature-controlled annealing. The thickness of the obtained glass is 30-70 microns, the surface pressure stress after chemical strengthening is larger than or equal to 680 MPa, and the bending radius is smaller than or equal to 1.8 mm. According to the method, by means of collaborative design of components and the process, high performance is guaranteed, waste recycling is achieved at the same time, and the method is suitable for folding mobile phones, flexible OLEDs and other devices.

This invention relates to the field of nanomaterials technology, and discloses a vanadate composite material, its preparation method, and its application. A reaction solution containing a surfactant is prepared to generate bubbles. These bubbles then act as soft templates under rapid stirring and heating. Vanadium oxide is dispersed in this reaction solution and reacted at a specific temperature for a certain time, allowing the surfactant to intercalate the vanadium oxide, transforming it into vanadate. The surfactant then coats the outer surface of the vanadate, resulting in an in-situ surface-modified vanadate composite material. The surfactant layer of this composite material can regulate the reaction layer between the electrode surface and the electrolyte, preventing electrode material dissolution or structural collapse during the electrochemical reaction process, thus significantly improving the performance of electrochemical energy storage devices. The foaming effect of the surfactant ensures that the bubbles are uniformly dispersed in the liquid, acting as soft templates for the attachment and growth of vanadate crystals.

The application provides a thermal protection structure block joint method. The thermal protection structure is composed of a panel, a thermal insulation material and a strain isolation pad. The thermal insulation material needs to be divided into blocks and jointed. The thermal protection structure block joint method is determined by a thermal insulation material failure criterion, and comprises the following steps: (1) determining the thermal insulation material failure criterion; (2) determining the change rule of the thermal insulation material failure area with the block size and the gap between the blocks; (3) determining the thermal protection structure block method; and (4) determining the thermal protection structure joint method. The thermal protection structure block joint method is suitable for a reusable large-area thermal protection structure, can solve the deformation matching and structure failure problems of the reusable thermal protection structure in engineering application, and is also suitable for the block and joint design of other thermal protection structures.

The invention relates to a mortise module wall and outer wall masonry construction method. The method comprises the steps of design and planning, module prefabrication, storage and transportation, field installation, water prevention and heat preservation and interior and exterior decoration, specifically, painting and tiling are conducted on an inner wall and an outer wall, a suspended ceiling is installed on the inner wall, a curtain wall is installed on the outer wall, the decoration effect is achieved, and meanwhile necessary anti-weather treatment is conducted; through the arrangement of the dust removal operation, the joint between the mortise module wall and the outer wall masonry can be cleaned, so that the joint is not prone to become a dust, dirt and mould gathering area, mould and bacteria cannot be bred in a humid environment and a good cleaning condition, and the air quality and living health are improved; the situation that dirt accumulation and mildew growth at the joint affect the overall building appearance and reduce the attractiveness is avoided, meanwhile, the problems that in a traditional method, frequent redecoration is needed, and the maintenance cost is increased are solved, the problems of water accumulation and water seepage can be avoided due to convenient cleaning of connection, and the internal structure is further enhanced.

A heat dissipation system and an electronic component, the heat dissipation system is suitable for a heating element with a horizontal heat dissipation surface, the heat dissipation system includes a plurality of panels arranged in a stacked manner, the plurality of panels are perpendicular to the horizontal heat dissipation surface, a temperature equalizing plate and a heat dissipation component are arranged between the plurality of panels; the heat dissipation component is arranged adjacent to the temperature equalizing plate, at least part of the temperature equalizing plate is located at the bottom of the heat dissipation system in the vertical direction, and at least part of the heat dissipation component is located at the top of the heat dissipation system in the vertical direction; the heat dissipation component includes a refrigerant inlet, a refrigerant outlet and a microchannel, the refrigerant inlet and the refrigerant outlet are respectively located at the edges of the heat dissipation component that are relatively arranged; the microchannel is located between the refrigerant inlet and the refrigerant outlet, and the microchannel is interconnected with the refrigerant inlet and the refrigerant outlet. The present application has a good heat dissipation effect, and is particularly suitable for high-power heat dissipation components with a small-area horizontal heat dissipation surface.

The utility model relates to the technical field of dies, in particular to a forming die of an oxide ceramic product, which comprises a base, a die mechanism is arranged on the base and used for forming the oxide ceramic product, the die mechanism comprises a lower die, an upper die and a lower die, the lower die comprises a lower die holder fixed at the top of the base, and an inner cavity is arranged at the upper end in the lower die holder; four straight grooves distributed circumferentially are formed in the lower end of the interior of the inner cavity, sliding blocks are slidably installed in the straight grooves, a shaping plate is fixed to the upper ends of the sliding blocks, a circular plate is rotatably installed at the lower end of the interior of the lower die base, four arc grooves distributed circumferentially are formed in the outer edge of the upper end of the circular plate, cams are rotatably installed at the lower ends of the sliding blocks, and the cams are located in the arc grooves; a driving piece is mounted on the lower die holder and is used for driving the circular plate to rotate; the upper mold is arranged above the lower mold and is used for compacting the filler in the lower mold; the outer wall of the product and the shaping plate are free of contact friction during demolding, internal damage is avoided, it is guaranteed that no hidden defect exists after sintering, and the quality and yield of finished products are remarkably improved.

The application discloses an open-rotation flexible control method and system for engineering machinery, which realizes different judgments on the rotation state by setting a pilot valve current-operation time curve, and formulates different curves suitable for valve current changes according to different rotation states, controls the rotation in the running processes of starting, accelerating, stable running, decelerating, stopping and the like and the different operations of the operation hand on the rotation, such as micro-adjustment, acceleration stopping, high-speed stopping, micro-adjustment reverse, acceleration stopping reverse and high-speed stopping reverse, guarantees the flexibility of the rotation control, avoids the occurrence of the phenomena of jamming, vibration and air suction, makes the rotation action stable and flexible, and makes the driver feel comfortable.

The utility model provides a kind of high stability direct current water pump, belong to water pump technical field, including shell;Water cavity is opened in shell, protective shell is set in water cavity, lubricating cavity is opened in protective shell, stator is set in lubricating cavity, rotatable through shaft is set in stator, rotor is set on the side of shaft;Mounting hole is opened in protective shell side, water inlet impeller is connected with the other end of the shaft passing through mounting hole, and liquid inlet back impeller is set, water inlet impeller is located in water cavity, and liquid inlet back impeller is located in lubricating cavity;Through the relative setting water inlet impeller and liquid inlet back impeller in both ends of shaft, water inlet impeller drives fluid delivery in water cavity, while liquid inlet back impeller agitates lubricating fluid in lubricating cavity synchronously, using the reverse thrust of back impeller to offset the axial force generated by water inlet impeller, reduce shafting deviation, reduce bearing wear, improve stability.

The utility model provides a high-pressure wear-resistant centrifugal steam turbine impeller, which relates to the technical field of steam turbine impellers, and comprises a connecting shaft, fan blades, a limiting piece, a mounting plate, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft and a connecting shaft, and is characterized in that the limiting piece is arranged outside the fan blades and is used for connecting and limiting the fan blades; the fixing ring is fixedly arranged on the outer sides of the ends of the multiple fan blades, the mounting piece is arranged in the mounting plate, the limiting block is fixedly arranged on the inner side of the mounting plate, and the ends of the fan blades are fixed through the fixing ring and a multi-stage limiting structure of the connecting ring and the limiting plate. Compared with the prior art, the vibration trend of the fan blades under the action of wind power in operation can be effectively limited, it is ensured that the positions of the fan blades are relatively static, the vibration amplitude is greatly reduced, the phenomena of friction, collision frequency and stress concentration between the fan blades and peripheral components are remarkably reduced through vibration reduction, and material fatigue, abrasion and structure looseness caused by high-frequency vibration are avoided.

The invention discloses nanometer graphene oxide and a preparation method thereof. The transverse size of the nanometer graphene oxide is 10-100 nm, and the thickness of the nanometer graphene oxide is 1-2.5 nm. The surface chemical structure meets the following conditions: a C1s peak is analyzed on the basis of X-ray photoelectron spectroscopy, the sum of the atomic percent content of hydroxyl and epoxy groups is not higher than 15%, and the atomic percent content of carboxyl is not lower than 6%. According to the structural design, the structural defect caused by excessive oxidation or reduction in a traditional method is avoided, and the chemical stability and the functionalization potential of the material are improved.

The utility model relates to the technical field of intelligent transportation, concretely relates to high -speed toll station vice node railing machine, including railing machine body, set up on railing machine body and show module of fee of snapshot module and, snapshot module and show module of fee set up in the one side of railing machine body front end facing the lane transaction area, be provided with communication module in the railing machine body, this communication module is used for with ETC lane antenna carries out data interaction, and the transaction data of lane antenna is received through communication module and is shown through show module of fee of railing machine body, the lower extreme of pole machine body is provided with base, and the fixed part of base and setting in the bottom of railing machine body is connected in sliding fit, and the bottom of base is the sliding fit connection of sliding slot and sliding rail, the utility model relates to a kind of high -speed toll station vice node railing machine, solve the problem that multiple stand, construction complex caused by traditional ETC lane snapshot and fee show device independent setting, railing machine is simultaneously realized convenient installation and position adjustment by sliding base.