1466results about How to "Improve functionality" patented technology

The invention provides a method for testing the dynamic strain of the surface of a rotating body in an electromagnetic environment. The method comprises the following steps: constructing a bridge by using strain gauges and acquiring dynamic characteristic data of the rotating part under actual constraint conditions; performing simulation calculation according to the dynamic characteristic data, and determining the optimal pasting position of the strain gauge; pasting a strain gauge and formulating a wiring scheme of a strain gauge wire; the strain gauge is connected with a voltage signal amplifier, the amplified signal is connected with a data acquisition system through a conductive slip ring, and the amplified strain signal is recorded and processed; acquiring strain signals in real time and taking the strain signals as test data, and performing whole-course test in a full-rotating-speed range to complete dynamic strain test on the surface of the rotating body. The system has high sensitivity, the sensitivity and the measurement precision of the system are improved through full-bridge configuration, larger output signals are provided, the full bridge can achieve temperature compensation through symmetrical circuit design, and the system has good linear output characteristics and facilitates signal processing and analysis within the strain range.

The utility model discloses an anti-deformation protection mechanism for a high-frequency longitudinal welded pipe unit, which belongs to the technical field of high-frequency longitudinal welded pipe units and comprises a worktable and a welding mechanism positioned at the top of the worktable, a first n-shaped frame is fixed between two sides of the top of the worktable, and an upper pressing wheel is rotatably mounted at the inner top of the first n-shaped frame. Side pressing wheels are rotationally installed on the two sides of the interior of the first n-shaped frame. The upper pressing wheel is rotationally mounted at the inner top of the first n-shaped frame and matched with the inner pressing wheel rotationally mounted at the end of the n-shaped frame, and the inner pressing wheel extends into a welded pipe, so that a welding seam of the welded pipe can be extruded up and down and shaped, the welded pipe can be continuously shaped in the conveying process, and the welding quality of the welded pipe is improved. And in addition, pressure is applied to the two sides of the welded pipe through side pressing wheels on the two sides of the first n-shaped frame when the welded pipe is conveyed, the welding seam is gathered and closed, welding operation is facilitated, and the functionality of the device is improved.

The present invention relates to a graphene-modified multifunctional polyester fiber and a preparation method and an application in down filling, belonging to the technical field of down filling. The preparation method of the present invention comprises the following steps: S1, under the action of an acid binding agent, trimethylolethane and phosphorus oxychloride are reacted in a solvent in the first stage, and then graphene oxide is added for the second stage reaction to obtain modified graphene oxide; S2, the modified graphene oxide and polyester powder are granulated to obtain a multifunctional polyester masterbatch; S3, the multifunctional polyester masterbatch and polyester slices are spun to obtain a graphene-modified multifunctional polyester fiber. The far-infrared normal emissivity of the graphene-modified multifunctional polyester fiber is 0.89-0.92, the far-infrared radiation temperature rise is 2.3℃-3.1℃, the limiting oxygen index reaches 28.3%-29.0%, the antibacterial performance is higher than 99.9%, and the breaking strength is 3.2cN / detx-3.4cN / detx.

The invention relates to a guide pipe submerged-arc welding positioning device and method. The guide pipe submerged-arc welding positioning device comprises a workbench, and a first butt joint mechanism and a second butt joint mechanism are arranged in a containing groove in the workbench; a first clamping mechanism and a second clamping mechanism are arranged on the upper end face of the workbench, a positioning mechanism is arranged on one side of the upper end face of the workbench, through fixing of a plurality of pressing blocks, it is effectively guaranteed that the first pipeline and the second pipeline are located on the same central axis, and accurate butt joint of the end faces of the first pipeline and the second pipeline is also guaranteed; and pipelines with different diameters can be fixed, so that the practicability is improved, and the functionality is increased.

The invention discloses a string type network energy storage converter control method, and the method comprises the steps: enabling an energy storage converter to take an SOC mean value as the feedback of an SOC equalization ring, and obtaining an SOC equalization ring output value; superposing the output value of the secondary frequency modulation ring, the output value of the SOC equalization ring and the output value of the primary frequency modulation ring as an active given value, and obtaining a reference value of the frequency through a VSG active frequency control ring; taking the output value of the secondary voltage regulating ring as a reactive given value, obtaining a reference value of a VSG reactive amplitude control ring through the primary voltage regulating ring, and obtaining a reference value of voltage through the amplitude control ring; inputting the obtained reference value of the frequency and the reference value of the voltage into a voltage and current double closed loop to obtain an output signal for following the reference values, and further generating a driving signal for controlling a switching tube of the energy storage converter; according to the invention, the communication load rate can be reduced, when large frequency and voltage fluctuation occurs, the voltage and frequency stability problem can be independently solved, the self-recovery control of secondary regulation is realized, and the frequency and the output voltage of the system are dynamically regulated in real time.

The invention discloses cool polyurethane synthetic leather as well as a preparation method and application thereof. The synthetic leather is sequentially composed of a cool polyurethane surface layer, a polyurethane thermal insulation layer, a polyurethane foaming bonding layer and a base material layer from top to bottom, wherein the cool polyurethane surface layer is prepared from the following components in parts by weight: 100 parts of polyurethane resin, 2-4 parts of a wear-resistant additive, 1-2 parts of a curing agent and 1-5 parts of cool color paste; the cool color paste is prepared by mixing 1-10 parts of a microcapsule phase change material, 2-10 parts of an infrared reflection pigment and 40-60 parts of water; the polyurethane heat insulation layer comprises polyurethane resin and hollow silicon dioxide modified by a silane coupling agent. The infrared reflection pigment and the microcapsule phase change material in the cool polyurethane surface layer reduce the surface temperature of the polyurethane synthetic leather. Meanwhile, a heat insulation material in the polyurethane heat insulation layer and a foaming process of the polyurethane foaming bonding layer are combined, so that the cool-feeling polyurethane synthetic leather material which is slowly heated at high temperature in summer is prepared.

The invention discloses a safety interlocking testing device for a quick-opening pressure vessel, which is characterized by comprising a first pipeline system, a second pipeline system and an electrical control system, the first pipeline system and the second pipeline system are both connected with the electrical control system; the first pipeline system comprises a first pipeline body and a first pressure sensor; the second pipeline system comprises a second pipeline body and a second pressure sensor; when a functional test is carried out on the safety interlocking device under the condition that a door or a cover of the quick-opening-door pressure container is not closed in place, the first pipeline system and the second pipeline system are connected with a third electromagnetic valve of the quick-opening-door pressure container. Whether the safety interlocking function is normal or not is judged by judging readings of the first pressure sensor and the second pressure sensor; when functional testing is carried out on the safety interlocking device under the condition that internal pressure of the quick-opening pressure container is not completely released, the first pipeline system is connected with a pressure gauge of the quick-opening pressure container, the under-pressure working condition of the quick-opening pressure container is simulated, and whether the safety interlocking function is normal or not is judged according to whether a door or a cover of the quick-opening pressure container is opened or not. The beneficial effects of the invention are that the system can safely and rapidly carry out the functional testing of the safety interlocking device, and is effective, safe, energy-saving and applicable.

The invention relates to the technical field of multi-stage micro powder sieves, in particular to a laminated multi-stage micro powder sieve which comprises a mounting base, supporting legs are fixedly mounted on the upper side of the mounting base in an array mode, first mounting blocks are fixedly mounted on the upper sides of the two sets of supporting legs, and driving motors are fixedly mounted at the upper ends of the first mounting blocks; a first flange plate is fixedly mounted at the end of an output shaft of the driving motor, a second flange plate is arranged on the first flange plate, first screw rods are fixedly mounted on the second flange plate in an array manner, the first screw rods are inserted into the first flange plate, and first screw sleeves are mounted at the ends of the first screw rods through threads. The device is divided into an upper layer and a lower layer, so that the device has the effect of screening particles with different diameters, a second polarization block is arranged at the differential screen on the lower side, and the second polarization block can perform higher-frequency vibration on the differential screen on the lower side at a higher rotating speed.

The present invention relates to a multifunctional polyester fiber based on modified graphene and a preparation method thereof, and belongs to the technical field of functional fibers. The preparation method comprises the following steps: dissolving dopamine hydrochloride, benzaldehyde compounds and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in an alcohol solution to obtain a modified solution; under alkaline conditions and the action of a catalyst, graphene is polymerized in the modified solution to obtain modified graphene; granulating the modified graphene and polyester powder to obtain a multifunctional polyester masterbatch; spinning the multifunctional polyester masterbatch and polyester slices to obtain a multifunctional polyester fiber based on modified graphene, wherein the far-infrared normal emissivity is 0.90-0.93, the far-infrared radiation temperature rise is 2.6°C-3.3°C, the breaking strength is 3.1cN / detx-3.3cN / detx, the limiting oxygen index is 28.5%-29.1%, and the antibacterial property is higher than 99.9%.

The utility model discloses an adjustable cold insulation pipe bracket for an LNG (Liquefied Natural Gas) pipeline, and relates to the technical field of LNG pipeline supporting. A lifting assembly is arranged on the supporting column, a bottom plate in the lifting assembly is connected to the supporting column, a hydraulic cylinder is connected to the bottom plate, a top plate is connected to a hydraulic rod connected to the hydraulic cylinder, a lower connecting rod is connected to the peripheral side wall of the bottom plate through a hinge, and an upper connecting rod is rotationally connected to the lower connecting rod through a shaft pin. The upper ends of the upper connecting rods are connected to the peripheral side wall of the top plate through hinges; a rotating assembly is arranged on the top plate, and a lug seat in the rotating assembly is connected to the peripheral side wall of the top plate. According to the adjustable cold insulation pipe bracket for the LNG pipeline, the lifting assembly is arranged, the stability during height adjustment of the LNG pipeline is effectively improved, the LNG pipeline is effectively prevented from falling off, the rotating assembly is arranged, the orientation of the bracket assembly can be conveniently adjusted, then the LNG pipelines in different orientations can be conveniently arranged, and the functionality of the adjustable cold insulation pipe bracket for the LNG pipeline is improved.

The invention belongs to the technical field of plant drinks, and particularly relates to kidney-tonifying and bowel-relaxing cistanche tea and a preparation method thereof. The herba cistanche tea is prepared from the following raw materials in parts by weight: 30 to 40 parts of herba cistanche, 10 to 15 parts of fructus lycii extract, 10 to 12 parts of semen cassiae extract, 10 to 15 parts of fructus cannabis extract, 8 to 12 parts of radix polygoni multiflori extract, 8 to 10 parts of rhizoma dioscoreae extract, 3 to 5 parts of honey powder, 5 to 10 parts of maltodextrin, 2 to 3 parts of beta-cyclodextrin, 2 to 3 parts of antioxidant, 0.1 to 0.15 part of mixed enzyme and 2 to 3 parts of zymophyte. According to the preparation method disclosed by the invention, the flowers and the rhizomes of the cistanche are subjected to pretreatment and enzymolysis treatment in different modes, and then fermentation is performed under the same microbial fermentation condition, so that respective advantages of the two parts of raw materials are fully played, beneficial components are released and retained to the maximum extent, and the functionality and the quality of the product are remarkably improved through synergistic fermentation.

The invention provides pseudo-boehmite, a preparation method thereof and a gamma-alumina carrier with high diffusion mass transfer performance. The preparation method comprises the following steps: respectively preheating an aluminum-containing acidic solution, a sodium metaaluminate solution and reaction bottom water to gel forming reaction temperature; under stirring, dropwise adding the first part of the aluminum-containing acidic solution and the first part of the sodium metaaluminate solution into the reaction bottom water, controlling the pH value of the gelling reaction to be 5.0-8.5, and uniformly mixing to obtain material slurry; dropwise adding all the residual aluminum-containing acidic solution and the residual sodium metaaluminate solution into the material slurry, and carrying out gel forming reaction to obtain reaction slurry; and carrying out step-by-step variable-temperature aging on the reaction slurry, and carrying out suction filtration, washing and drying to obtain the pseudo-boehmite. According to the method, the problem of poor pore regulation flexibility in a traditional double-aluminum method is solved, the limitation of the pore size can be overcome, and the pore permeability of the gamma-alumina carrier is improved, so that the diffusion mass transfer performance of the gamma-alumina carrier is greatly enhanced.

The invention discloses a method for manufacturing a circuit board of a thick copper slope circuit, which comprises the following steps of: attaching a first dry film layer on a thick copper layer, manufacturing a dry film pattern, retaining the dry film layer on the thick copper circuit, developing and removing the dry film layer on a thin copper circuit, developing the dry film layer on the slope circuit to form a matrix developing pattern, etching a slope circuit area to form a matrix etching pattern, and manufacturing the circuit board of the thick copper slope circuit. The method comprises the following steps of: grinding off a thick copper slope line, processing a line pattern, manufacturing a second dry film pattern, forming a surrounding pattern of all slope line areas, manufacturing a first solder mask layer in the surrounding pattern, manufacturing a second solder mask layer in other areas, and carrying out post-process processing to form a circuit board of the thick copper slope line; the processing precision and reliability of a slope circuit are improved through a mode of taking chemical processing of developing and etching as a main mode and taking polishing as an auxiliary mode, and a solder mask layer with the thickness reaching the standard and a complete covering effect is formed through manufacturing an encircling pattern and manufacturing a first solder mask layer and a second solder mask layer; the whole machining process effectively improves the machining precision and reliability.

The invention provides a hot airflow-assisted electrospinning method for improving the yield of nanofibers, which comprises the following steps: dissolving a high-molecular polymer in a solvent to prepare a spinning solution; and carrying out electrostatic spinning on the spinning solution to a collection substrate by utilizing a hot air flow auxiliary electrospinning device to obtain the nanofiber. According to the method, the volatilization speed of solvents (including water systems and non-water systems) in the spinning process is remarkably increased, the problem that spinning is difficult to conduct through a spinning solution with the low solvent volatilization speed is solved, and the water-based spinning solution with the high-molecular polymer concentration as low as 1 wt% can be electrospun; spinning jet flow is further stretched and split through hot air flow, fibers with smaller diameters are formed and deposited on a collecting substrate, the yield is increased, meanwhile, the specific surface area of the nanofibers is increased, functional substances are saved, the functional effect of the nanofibers is improved, and the yield of the prepared nanofibers can reach 10 g / h; and the problem that the needle head is blocked when a solvent near the needle head is promoted to volatilize by heating is avoided.

The invention relates to the field of wastewater treatment settling ponds, in particular to a settling pond for pharmaceutical wastewater treatment and a use method.The settling pond comprises a settling treatment box, the lower portion of the inner wall of the settling treatment box is rotationally connected with a transmission rod, and the right end of the transmission rod penetrates through the settling treatment box and is fixedly connected with a transmission motor; the surface of the transmission motor is fixedly connected with the side wall of the precipitation treatment box, a positioning mechanism is movably connected between the left end of the transmission rod and the left side of the precipitation treatment box, and a stirring and cleaning mechanism is movably connected between the middle of the transmission rod and the inner wall of the precipitation treatment box. The sedimentation tank for medical wastewater treatment is composed of a positioning mechanism and a stirring and cleaning mechanism, when the transmission rod runs, the stirring and cleaning mechanism can be driven to mix wastewater and a flocculating agent, and after the wastewater is precipitated, the stirring and cleaning mechanism can be deformed, so that precipitates adhered to the inner wall of the precipitation treatment box can be conveniently cleaned, and a large amount of precipitates are prevented from being remained on the inner wall of the precipitation treatment box after the wastewater is subjected to precipitation treatment.

The invention discloses a maleamic acid-tragacanth copolymer as well as a preparation method and application thereof, and the maleamic acid-tragacanth copolymer is prepared from the following raw materials in parts by weight: 3-7 parts of maleic anhydride, 90-110 parts of an absolute ethyl alcohol solvent, 10-15 parts of polyethyleneimine, 8-10 parts of polyethylene polyamine and 40-60 parts of an alcohol-water solution, and 15-30 parts by weight of a tragacanth modified derivative. A tragacanth modified derivative is introduced into maleic anhydride amidation in a ring-opening grafting blending manner, so that two adsorption materials have a synergistic effect, the characteristics of biodegradability, a macromolecular porous structure and the like are retained, and a large number of functional groups such as hydroxyl, carboxyl, amido, carbon-carbon double bonds and the like are introduced; toxic substances such as heavy metals, medical intermediates, dyes and pesticides in the wastewater are removed by virtue of comprehensive effects of electrostatic force, hydrogen bonds, Van der Waals force, inclusion and the like.

The invention discloses a universal verification system, device and method suitable for the functional performance of an FPGA device, and relates to the technical field of FPGA device testing, the universal verification system comprises verification hardware, verification software, a verification auxiliary instrument and environment equipment, and the specific verification steps are as follows: step 1, on-chip logic function verification; step 2, common interface function verification; 3, software and hardware adaptability function verification; 4, comprehensive performance function verification; 5, dynamic power consumption testing; step 6, common IP function verification; 7, testing associated parameters; step 8, system adaptability; and step 9, environment adaptability. The universal verification system is suitable for verification of a serial interface function, a multi-path IO compatibility test function, development software platform adaptability, simulator adaptability, a configuration mode, configuration starting time, a signal processing function, official IP supportability and the like, and has functions of a high-speed interface protocol, an Aurora protocol, a DDR protocol, an IIC protocol, an SPI protocol and the like.

The invention discloses a multi-theme display method, device and equipment based on an MCU module and a medium, the method is applied to a multi-theme display system, the multi-theme display system comprises the MCU module and an LCD module, the MCU module is in communication connection with the LCD module, and the multi-theme display method based on the MCU module comprises the steps that display parameters of the LCD module are obtained, calculating and processing according to the display parameters to obtain control parameters of the MCU module; configuring the MCU module by using the control parameters; and in response to the received theme switching instruction, the MCU module performs corresponding screen updating on the LCD module by using the theme switching instruction. According to the embodiment of the invention, the method for the MCU module to perform corresponding screen updating on the LCD module by using the theme switching instruction is realized, and the theme selectivity is increased, so that the functionality is improved.

The automatic drill bit machining device comprises a base, a Y-direction moving device is arranged on the upper end face of the base, a support is fixed to one side of the upper end face of the base, an X-direction moving device, a Z-direction moving device and a driving device are arranged on one side of the support, and the driving device comprises an L-shaped moving plate. A pressure detection mechanism is arranged in the middle of one side surface of the L-shaped moving plate; a stretching mechanism and a scraping and shoveling mechanism are arranged on the two sides of the L-shaped moving plate; a machining plate is placed on a workbench on the Y-direction moving device. And through the arrangement of a third spring body, a scraping plate and a soft scraping piece, the fixity of the machined plate can be effectively improved, the phenomenon that the machined plate is loosened due to the fact that the rotating speed of the drill bit is too high is avoided, and the protectiveness of the machined plate is improved.

The utility model provides a mechanical drainage shower device which comprises a water mixing device which comprises a water inlet end and a water outlet end, the water inlet end is connected with a cold water pipeline and a hot water pipeline, the water outlet end is connected with a main pipeline, and the main pipeline comprises a drainage branch and a plurality of water outlet branches. The pre-drainage device comprises a drainage valve, a water outlet valve, a drainage port, a drainage channel and a water outlet channel, the drainage channel and the water outlet channel are communicated with the drainage branch and the drainage port respectively, the drainage valve is used for controlling opening and closing of the drainage channel, and the water outlet valve is used for controlling opening and closing of the water outlet channel; the shell, the water mixing device and the pre-drainage device are both arranged in the shell, the shell is provided with a water outlet button used for controlling the water outlet valve, a pre-drainage switch and a plurality of shower switches, the pre-drainage switch and the shower switches are respectively used for controlling the water outlet branch and the water outlet branches to be opened and closed, and the water outlet branches and the water outlet are respectively connected to corresponding showers. Therefore, cold water pre-drainage of the shower device can be achieved through the mechanical switch, and the adaptability of the shower device to old users is improved.

The invention provides a special recombinant material applied to the fields of liquefied petroleum gas (LPG), liquefied ethylene gas (LEG), liquefied natural gas (LNG) A / B / C type independent liquid cargo tanks and part of low-temperature pipeline supports and a manufacturing method of the special recombinant material. The invention provides a manufacturing method of a special recombined material for the ultralow-temperature field. The manufacturing method comprises the steps of selection of a veneer tree species and an adhesive, determination of the thickness of a veneer and the adhesive applying amount, and rapid gum dipping and hot pressing of a thick veneer. According to the manufacturing method provided by the invention, the vacuum high-pressure impregnation adhesive is adopted, so that the effects of high impregnation efficiency, large impregnation amount and uniform resin distribution can be realized; and a temperature sensor and a pressure sensor are installed, so that early warning can be carried out in advance when abnormity occurs. The special recombinant material has excellent mechanical properties such as water resistance, compression resistance, bending resistance and shearing resistance at room temperature and ultralow temperature (-163 DEG C). The special recombinant material provided by the invention can be used for liquid cargo hold pressure-bearing wood of LPG, LEG and LNG ships and part of low-temperature pipeline brackets.

The invention discloses an industrial multi-dimensional data fusion system and method, and relates to the technical field of electronic bill multi-dimensional monitoring, and the method comprises the following steps: building an electronic bill service platform, building an enterprise file for an internal enterprise of the platform based on MySQL, collecting the electronic bill information of the internal enterprise entering the platform, including a draft bill, a sales bill and a purchase bill, and storing the collected information in the platform. Recording the data in a related enterprise file; on the basis of electronic bill data in enterprises, information extraction is performed on bills, and bill data under archives of the enterprises of the two parties are retrieved for the enterprises entering the platform. According to the industrial multi-dimensional data fusion system and method, by fusing multi-dimensional data such as enterprise archives, electronic bill data and business range portraits, suspicious bill judgment is carried out on electronic bills, the business range portraits are dynamically generated based on actual business data of enterprises, the accuracy of determination of suspicious bills is enhanced, and the efficiency is improved. The workload of manual bill checking is reduced, and the practicability and functionality are enhanced.

The utility model discloses a sports shoe upper and a shoe, the sports shoe upper comprises a shoe upper base layer, the shoe upper base layer comprises a first splicing part, a second splicing part and a third splicing part, the first splicing part corresponds to a forefoot area and a heel area of a human foot; the second splicing part is positioned in the middle section area of the arch between the front sole area and the heel area; the third splicing part extends along the edge of the vamp, is connected with the sole and is connected with the first splicing part and the second splicing part; the fixing line is arranged at the junction of the first splicing part, the second splicing part and the third splicing part; the vamp base layer is formed by splicing a first splicing part, a second splicing part and a third splicing part, and the splicing parts are regions which are formed by weaving TPU yarns in an interweaving mode and have different weaving intensities. According to the sports vamp and the shoe, the softness and hardness of each part of the vamp base layer are adjusted by arranging the areas with different weaving intensities on the vamp base layer, the vamp fits the foot movement of a user, and the sports performance of the user is improved.

The invention relates to the technical field of digging, in particular to nursery stock digging equipment with a root protection function, and solves the problems that a part of tree roots of nursery stocks can be cut off during digging of the nursery stocks, the nursery stocks are likely to die due to damaged tree roots in the subsequent planting process, soil balls located at the roots of the tree roots are prevented from being scattered, and the digging efficiency is high. The problem that the shipment efficiency of the nursery stocks is delayed due to the fact that the nursery stocks need to be bound manually subsequently and the operation is tedious is solved. Comprising a planting land, and fraxinus mandshurica seedlings are arranged on one side of the upper end face of the planting land. By means of the device, a rooting agent can be automatically sprayed on the outer surface of a fraxinus mandshurica sapling root soil ball, so that production of the surface of a cut root system is promoted, the two sides of the outer surface of the soil ball can be automatically and directly covered with two to-be-combined arc-shaped root soil wrapping shells through the sapling root wrapping mechanism, the soil ball is wrapped, and the yield of the sapling is improved. By means of the technical scheme, the protection performance of the device on the roots of fraxinus mandshurica saplings is enhanced while the functionality of the device is increased.

The invention relates to a preparation method of a thermosensitive decoloration temperature-adjustable super-hydrophobic textile. According to the method, a microcapsule emulsion A with a thermosensitive decoloration and phase-change material as a core material and a polymer as a shell layer and a waterproof agent emulsion B are obtained through free radical copolymerization or polycondensation, the thermosensitive decoloration and phase-change microcapsule emulsion and the waterproof agent emulsion are applied to after-finishing of textiles, a simple padding process is adopted, and the temperature-sensitive decoloration and phase-change microcapsule emulsion and the waterproof agent emulsion are obtained. And meanwhile, a layer of polymer film is formed on the surface of the fiber by utilizing the waterproof agent in the emulsion B, so that the fabric is endowed with multiple functions of thermosensitive decoloration, temperature adjustment, super-hydrophobicity and the like. According to the invention, the polymerization process is simplified, and the chromatic aberration problem caused by polydopamine is eliminated; by adding the recessive dye and the color developing agent, the thermosensitive decoloration function is increased, the color of the fabric becomes light along with temperature rise, light reflection is increased, and the temperature adjustable performance is further enhanced by adding the phase change material.

The invention provides a carbon fiber reinforced silicon carbide ceramic and a preparation method thereof, and belongs to the technical field of silicon carbide ceramics. The preparation method comprises the following steps: preparing functional carbon fibers, preparing modified silicon carbide microspheres, preparing a mixture, forming and calcining. The preparation method of the modified silicon carbide microspheres comprises the following steps: putting silicon carbide into an ethanol solution, adding sodium dodecyl amino propionate, carrying out ball milling treatment, and after ball milling is finished, filtering out and drying to obtain ball-milled silicon carbide; placing ball-milled silicon carbide in dimethyl sulfoxide, uniformly stirring, adding modified sodium alginate and hydroxyethyl cellulose, heating to 70-74 DEG C, adding tetrabutylammonium bromide, carrying out heat preservation reaction for 10.0-11.5 hours, and after the reaction is finished, filtering, washing and drying to obtain modified silicon carbide microspheres; the prepared ceramic product is high in strength performance and toughness, low in thermal expansion coefficient and excellent in high-temperature oxidation resistance.

The invention discloses a multi-channel holographic method based on a total-space dynamic switching metasurface. The method comprises the following steps: 1) constructing a nano-structure unit; 2) optimizing the structure parameters of the nano structure unit according to the incident light wavelength lambda; and 3) constructing a nano-structure array, wherein the nano-structure array comprises a plurality of nano-structure units. According to the invention, left-handed / right-handed circularly polarized light is set to be incident to the nano-structure array, and dynamic switching of four holographic channels is carried out by rotating a mask plate in a reflection space; in a transmission space, the relative positions of the two layers of nano-arrays are changed by translating the second layer of nano-structure array to obtain dynamic switching of the three holographic channels, and the seven holographic channels can be subjected to mutually independent and continuous phase regulation and control through the nano-bricks. According to the invention, full-space information utilization can be realized, multi-channel dynamic switching is realized, the information capacity of the device is increased, the functionality of the device is improved, and the device can be applied to the fields of large-capacity optical information storage and coding and the like.

The invention discloses conveying equipment and method based on amino silicon oil emulsion processing, and belongs to the technical field of amino silicon oil emulsions.The conveying equipment comprises a main body module and a multi-flow supply module, the main body module comprises a material box, the rear end face of the material box is fixedly connected with a first conveying pump, and the input end of the first conveying pump is fixedly connected with a supply pipe; the output end of the first conveying pump and the rear end of the material box are fixedly connected with a connecting pipe, the multi-flow supply module comprises a flow guide pipe fixedly connected to one side of the material box, and the bottom of the flow guide pipe is fixedly connected with a collecting box. According to the device, raw materials with different capacities can be fed into different amino silicone oil emulsion preparation devices, use of the different preparation devices is facilitated, the supply requirements of the different preparation devices are met, and the functionality of the device is improved.

The utility model relates to the technical field of automobile part production, in particular to an automobile part stamping die with an adjustable stamping head, which comprises a mounting plate, a lower die block arranged in the middle of the top end of the mounting plate, a fixing frame arranged at the top end of the mounting plate, and an air cylinder arranged in the middle of the top end of the fixing frame. A lifting plate is arranged in the fixing frame, a punching head is driven by a driving motor and a second threaded rod, the position of the punching head can be adjusted, the functionality of the device is improved, workers can conveniently machine automobile parts, convenience is improved, the automobile parts can be rapidly clamped and fixed through the arrangement of a clamping plate, and the machining efficiency is improved. According to the automobile part stamping device, the situation that automobile parts slide during stamping is avoided, the machining quality of the automobile parts is improved, the automobile parts of different sizes can be clamped and fixed by adjusting the distance between the clamping plates, and the use convenience of the device is further improved.

The invention discloses a forestry afforestation sapling transplanting protection device and method convenient to move, and relates to the field of forest tree breeding, the forestry afforestation sapling transplanting protection device comprises a base, a moisturizing mechanism, a clamping mechanism and a placing mechanism are fixedly arranged on the upper surface of the base, and the moisturizing mechanism is connected with the placing mechanism; and fixing mechanisms are arranged on the bottom surfaces of the placing mechanism and the base. The bottom surface of the base is provided with a groove, a supporting shaft, a supporting rod and universal wheels, and a placing mechanism is arranged above the base, so that when the device is used for auxiliary work of sapling transplanting, a user can place a to-be-transplanted sapling on two second clamping plates, and the to-be-transplanted sapling is placed on the second clamping plates; at the moment, a plurality of universal wheel moving devices can be used for moving the saplings, the saplings are moved and transferred to a transplanting site, so that a user can conveniently move the saplings which are large in size and heavy, the user can conveniently move and transfer the device body through a plurality of universal wheels, and the use convenience of the device is further improved.