15results about How to "Shape adjustable" patented technology

The invention belongs to the technical field of bridge construction, and discloses a cable bent tower steel bar jig frame system which comprises a scaffold system and a stiff framework. The steel reinforcement framework comprises a plurality of steel reinforcement framework sections which are connected with one another in the vertical direction, and the scaffold system is provided with a plurality of scaffold sections which are connected with one another in the vertical direction; the stiff framework is provided with a plurality of stiff framework sections which are connected with one another in the vertical direction, a positioning plate is arranged at the bottom of each stiff framework section, and longitudinal bars of the steel reinforcement framework penetrate through the positioning plates in the vertical direction; the positioning plate comprises a plurality of first plates and a plurality of second plates, wherein the first plates and the second plates are detachably spliced with each other. The scaffold system is matched with the stiff framework, the steel reinforcement framework is built step by step, the steel reinforcement framework is integrally hoisted to the to-be-installed position after being built, direct construction at the to-be-installed position is not needed, and the aloft work amount is reduced; and the first plate and the second plate are matched, so that the shape of the positioning plate is adjustable, and the construction requirement of the variable cross-section cable bent tower is met.

The utility model discloses a bending machine for automobile plate processing, which comprises a machine shell, a fixing plate arranged at the top of the machine shell and used for placing a workpiece to be bent, and an overturning plate rotationally arranged on the side of the machine shell and used for bending the workpiece to be bent, and further comprises a bending adjusting mechanism and a conveying mechanism, the bending adjusting mechanism is arranged on the top of the machine shell and located above the fixing plate. The bending adjusting mechanism comprises a mounting part, a rotating part and an overturning abutting part. The pair of mounting parts are respectively arranged at the top of the shell in a sliding manner; the rotating part is rotationally arranged between the pair of mounting parts; according to the device, the problem that the bending angle and shape can be adjusted only by disassembling and replacing components is solved, and the effect that the angle and shape of the bending position of a bent workpiece can be adjusted without disassembling and replacing the overturning abutting part is achieved.

The invention provides a transient electromagnetic combination device and a detection method thereof. The transient electromagnetic combination device comprises a transmitting coil, a receiver, N compensation coils, M magnetic sensors and P transmitters, the transmitting coil and the compensating coil are connected with corresponding transmitters; the magnetic sensor is connected with a receiver; the vertical projections of the compensation coil and the magnetic sensor in the plane where the transmitting coil is located are located in the transmitting coil, and the vertical projection of the magnetic sensor is outside the vertical projection of the compensation coil; the transmitting coil and the compensating coil are same in winding direction and current direction; the sum of the magnetic induction intensities generated by all the transmitting coils and all the compensating coils in the same magnetic sensor is equal, and the directions are opposite. The transient electromagnetic early signal information is richer, the exploration blind area is reduced, and the observed transient electromagnetic signal conforms to the actual rule; a field source signal is enhanced, so that a higher signal-to-noise ratio and higher exploration depth are achieved; and exploration requirements of different depths can be met.

The invention is suitable for the field of gas sensor detection, and provides a mixed potential type ammonia gas sensor and a preparation method thereof. The mixed potential type ammonia gas sensor comprises a layered nickel silicate sensitive electrode, a reference electrode and a solid electrolyte, the layered nickel silicate sensitive electrode and the reference electrode are positioned on the surface of the solid electrolyte; the layered nickel silicate sensitive electrode is prepared from three kinds of layered nickel silicate electrode slurry with different morphologies. According to the invention, the layered nickel silicate is used as the sensitive electrode, so that the response value to ammonia gas is obviously improved at room temperature; compared with an existing most advanced mixed potential type ammonia gas sensor, the high-temperature mixed potential type ammonia gas sensor has the advantage that the low-concentration response to ammonia gas can be remarkably improved at room temperature compared with other high-temperature mixed potential type ammonia gas sensors.

The invention discloses an Al / PDA / CuZnO2 / AP composite energetic material, which is characterized in that PDA is used as an interface bonding layer to enable Al powder to be in close contact with a bimetallic catalyst CuZnO2 and AP, nano-particles CuZnO2 are uniformly attached to the PDA modified Al powder, and the Al powder, the CuZnO2 and the AP are directionally arranged and self-assembled to form an energetic micro-unit with Al / PDA / CuZnO2 as a core and AP as a shell layer. According to the preparation method of the composite energetic material, a mixed solvent is selected as a crystallization solvent, the Al / PDA / CuZnO2 / AP composite energetic material with the controllable particle size is prepared through a cooling recrystallization method, the grading requirement of a composite solid propellant is met, the metal combustion agent, the catalyst and the oxidizing agent are tightly combined, the reaction diffusion distance of the metal combustion agent, the catalyst and the oxidizing agent is shortened, and therefore the particle size controllable Al / PDA / CuZnO2 / AP composite energetic material is obtained. The synergistic energy release effect is improved, and the energy performance of the composite solid propellant is expected to be enhanced. The preparation method is simple and easy to operate, the crystallization solvent can be recycled for multiple times, and the preparation method has the characteristics of environmental protection and high economic benefit and is beneficial to industrial large-scale production.

The invention relates to a contact type double-section rigidity limiting stopper which comprises an upper mounting plate, a shell, a pressing plate, a pulling plate, a middle connecting body, a bottom plate, a low-rigidity elastic body, a high-rigidity elastic body and a transverse elastic body, the pressing plate is arranged in the shell, the middle connecting body and the pulling plate are arranged in the middle, the high-rigidity elastic body is arranged between the pressing plate and the pulling plate and fixedly connected with the pulling plate, and the transverse elastic body is fixedly connected with the bottom plate. A low-rigidity elastomer is arranged between the high-rigidity elastomer and the middle connector, a transverse elastomer is arranged between the pull plate and the inner wall of the shell, the upper end of the middle connector is fixedly connected with an upper mounting plate, and the lower end of the shell is fixedly connected with a bottom plate. The limiting stopper is of a contact type structure and is convenient to install, and the problem that the contact type limiting stopper needs to accurately control the limiting gap does not exist; the low-rigidity elastic body can guarantee low rigidity in the vertical direction and the transverse direction, the high-rigidity elastic body is adjustable in shape and material hardness, and the requirement for the limiting rigidity of the ship cabin raft in the inclining, swinging and impacting states can be met.

The invention belongs to the field of air filtration nanofiber membrane materials, and particularly relates to a tobacco leaf FI protein doped composite nanofiber air filtration membrane and a preparation method thereof, the fiber air filtration membrane comprises the following raw materials: a polymer, FI protein and fiber, the diameter of the fiber is 230-780nm, and the gram weight is 6-50g / m < 2 >; the preparation method comprises the following steps: firstly, preparing a spinning solution, and obtaining the high-performance air filtering membrane which is modified by the nanoscale fibers and is stable in structure and good in performance by utilizing an electrostatic spinning technology; the air filtering membrane has the advantages of large specific surface area, high filtering efficiency, stable structure and the like, meanwhile, the recycling rate of tobacco waste is increased, sustainable development of the environment is realized, and the application prospect is wide.

This invention discloses a method for generating crystal image samples based on a diffusion model, comprising: generating a standard comparison image based on a reaction flask photograph; obtaining crystal identification features based on the shape and color of the crystal; detecting the presence of the crystal by using the crystal identification features and the standard comparison image; and generating a crystal image based on the crystal presence result. The crystal image generation is performed using a diffusion model. This invention, through an AI method based on a diffusion model, can generate crystal growth images under different conditions within seconds, without requiring long waiting times for experimental results or physical experiments. It can generate high-quality crystal growth samples, suitable for materials research and educational visualization. The shape, color, transparency, and other parameters of the crystal can be adjusted to match experimental data of specific chemical systems. It utilizes AI to generate large-scale, high-quality crystal growth image datasets, assisting the application of deep learning in materials science.

The invention belongs to the field of material chemistry, and discloses a nitrogen-doped zinc-based adsorbent, a preparation method of the nitrogen-doped zinc-based adsorbent and application of the nitrogen-doped zinc-based adsorbent in radioactive cesium removal, and the preparation method of the nitrogen-doped zinc-based adsorbent comprises the following steps: step 1, preparing a ZIF-8 precursor with a dodecahedron structure; step 2, preparation of HNZOR or HNZSS: dispersing the ZIF-8 precursor obtained in the step 1 in a solvent, carrying out a low-temperature hydrothermal reaction at 150-200 DEG C, collecting a product after the reaction is completed, washing and carrying out vacuum drying to obtain HNZOR; the preparation method comprises the following steps: dispersing HNZOR in water, carrying out secondary low-temperature hydrothermal reaction in an ammonium hydroxide environment at 120-180 DEG C, collecting a product after the reaction is completed, washing and carrying out vacuum drying to obtain HNZSS; and 3, activating the HNZOR or HNZOR obtained in the step 2 by using potassium salt containing K < + >, and after activation is completed, washing and drying to obtain the nitrogen-doped zinc-based adsorbent. The adsorbent disclosed by the invention can be widely applied to removal and enrichment of Cs < + > in nuclear power plant wastewater, accident emergency water bodies and high-salt complex waste liquid.

The application discloses a synthesis method of rare earth borate nanoparticles, which comprises the following steps: heating a boron precursor in a nitrogen atmosphere, then rapidly injecting a rare earth metal precursor, rapidly heating to 280-310 DEG C and maintaining for a period of time to form uniform rare earth borate nanoparticles; wherein the rare earth metal precursor is an organic solution containing rare earth acetate hydrate and oleic acid; and the boron precursor is an organic solution containing tributyl borate. The application firstly innovatively improves the synthesis method of rare earth borate nanoparticles, prepares regular morphology and uniform size neodymium borate nanoparticles, and after optical performance characterization, it is shown that the neodymium borate nanoparticles have the potential for BNCT used for near-infrared two-zone imaging guidance. The preparation method can realize the size control of the neodymium borate nanoparticles by adjusting the proportion of the neodymium precursor and the boron precursor, and is suitable for the preparation of various rare earth borate nanoparticles, and the method has universality.

The invention relates to a microwave ablation antenna and a control method thereof, the microwave ablation antenna comprises a feed structure and an ablation structure, the feed structure is electrically connected with the ablation structure, the feed structure and the ablation structure are wrapped by an outer insulating layer, and the outer insulating layer is electrically connected with the feed structure. The outer insulating layer forms an insulating needle head on the side, away from the feed structure, of the ablation structure, and the feed structure, the ablation structure and the outer insulating layer wrapping the feed structure and the ablation structure form a needle rod; an external power supply is connected to the side, away from the ablation structure, of the feed structure so as to supply power to the ablation structure, and the ablation structure is used for forming an ablation area with a preset radial diameter and a preset roundness by using a superposed electromagnetic field. The device has the advantages of being large in ablation range, simple in structure and low in machining difficulty, has extremely high ablation precision and is suitable for different operation environments.

The embodiment of the utility model provides a splicing screen and a display screen. The spliced screen comprises display units and frame assemblies located on the peripheries of the display units, the frame assemblies of the multiple spliced screens are sequentially attached to form a plane screen, each frame assembly comprises a plurality of frames connected end to end, and each frame is detachably connected with the boundary of the corresponding display unit. The side edges of every two adjacent display units can be attached to form a right-angle screen. When a display screen required by a user comprises a plurality of right angles, such as a rectangle, an L shape and a U shape, and the size of the screen is required, a plurality of splicing screens can be sequentially connected to form a plurality of straight surface screens meeting the size requirement, and then the frames of the splicing screens at the adjacent side edges of the two straight surface screens capable of forming the right angles are disassembled, so that the splicing screens can be formed. Therefore, the side edges of the display units are attached and abutted to form a right-angle surface screen, and finally the display screen assembly with the shape and the size meeting the requirements of customers is formed. The display screen is adjustable in shape and size by applying the display assembly.

According to the waterproof structure of the mirror and the intelligent mirror, the waterproof structure is installed on the back of the mirror, so that the waterproof structure and the mirror define the containing cavity, and the containing cavity is used for containing electronic equipment. The waterproof structure comprises a frame and an upper cover, one side of the frame is connected to the back of the mirror, and the upper cover is arranged on the side, away from the mirror, of the frame. The frame comprises a plurality of frames which are separated from one another and are adjacent end to end, gaps among the frames are filled through second sealing pieces, and the gaps among the frames, the number of the frames and the splicing shape of the frames are changed, so that the size and the shape of a containing cavity formed by the frame are adjustable, and therefore the frame is suitable for different electronic devices. The first sealing element is arranged between the frame and the mirror, the second sealing element is arranged in the gap between the frames, and the third sealing element is arranged between the frame and the upper cover, so that the waterproof performance of the accommodating cavity is ensured.

This application discloses a method for encapsulating organic solid-liquid phase change materials. The method includes the following steps: mixing phase change microcapsule powder, polymer, crosslinking agent, and water; reacting; washing with water; and drying to obtain the organic solid-liquid composite phase change material. This invention has low process requirements, does not use organic solvents, has minimal environmental pollution, and the prepared phase change profile has an adjustable shape, exhibiting characteristics such as no leakage, high heat storage density, and good stability, making it highly promising for applications in cold chain transportation and thermal management.