10results about How to "Accelerated destruction" patented technology

The application provides a micro-channel water-cooled plate flow equalization structure, which comprises a fluid inlet of a micro-channel water-cooled plate, a flow collecting box, a rough element structure, parallel arranged micro flow channels, a flow converging box and a fluid outlet of the micro-channel water-cooled plate; the rough element structure is arranged at the rear half of the parallel arranged micro flow channels to adjust flow resistance, so that pressure drops of the front half of the flow channels are approximately equal; refrigerant enters the flow collecting box through the fluid inlet of the micro-channel water-cooled plate, flows through the rough element structure, converges in the flow converging box and is discharged from the water-cooled plate through the fluid outlet of the micro-channel water-cooled plate. The method and device improve the problem of uneven flow distribution in the micro flow channels of the micro-channel water-cooled plate and improve temperature uniformity of the water-cooled plate. The method and device introduce the rough element structure, realize flow equalization effect, enhance fluid disturbance, destroy thermal boundary layer and improve convective heat transfer effect of the water-cooled plate.

This invention provides bfrA Single gene knockout or bfrA Genes and bfrB Double gene knockout of Neisseria gonorrhoeae and its applications involve the field of biotechnology. Research has found that... bfrA Single gene knockout and bfrA and bfrB Double gene knockout of Neisseria gonorrhoeae resulted in increased formation of vesicles on the outer membrane, disruption of the cell wall and cell membrane, reduced adhesion and invasion abilities, decreased bacterial activity, decreased ATP levels, and weakened ability to infect mice. Therefore, knocking out Neisseria gonorrhoeae... bfrA Gene or bfrA and bfrB The dual-gene assay can be used to prepare products for the production of gonococcal outer membrane vesicles and to construct low-pathogenic gonococcal models.

This invention belongs to the field of agricultural herbicides and provides a photosynthetic inhibitor herbicidal composition comprising 5-aminolevulinic acid, malondialdehyde, and a herbicidal active ingredient. The herbicidal active ingredient is selected from one or a combination of several herbicides selected from acetolactate synthase inhibitors, photosynthetic system II inhibitors, or protoporphyrinogen oxidase (PPO) inhibitors. This invention utilizes the synergistic effect of 5-aminolevulinic acid, malondialdehyde, and a specific type of herbicidal active ingredient to effectively enhance the efficacy of the herbicidal active ingredient, enabling rapid and thorough weed control.

The EGR valve with the excellent sealing performance comprises a valve body, a motor assembly, a valve rod, a valve rod transmission assembly and a valve plate, a motor cavity and an air cavity are formed in the valve body, the motor assembly is installed on the motor cavity, one end of the valve rod is in linkage with the motor assembly through the valve rod transmission assembly, and a return spring is further arranged in the valve body. The other end of the valve rod is connected with the valve block, a valve seat is installed at the air inlet end, corresponding to the air cavity, of the valve body, and an exhaust pipe is installed at the air outlet end, corresponding to the air cavity, of the valve body. The sealing assembly is arranged between the corresponding motor cavity and the air cavity in the valve body and used for sealing the outer wall of the valve rod and the inner wall of the valve body, the sealing assembly comprises a first sealing ring and a first sealing scraping piece, and the first sealing scraping piece is tightly attached to the side, close to the valve plate, of the first sealing ring. The sealing doctor blade is additionally arranged on the sealing ring between the valve rod and the valve body to protect the sealing ring, so that the service life of the sealing ring is prolonged, and a good protection effect on the internal sealing performance of the motor is achieved.

This invention discloses a method for preparing an in-situ reinforced single-atom nanoenzyme bactericidal composite material for concrete. The method includes using sodium ferric ethylenediaminetetraacetate (EDTA) as a core precursor, and encapsulating calcium peroxide on its surface through an in-situ reaction to form a composite precursor of calcium peroxide encapsulating EDTA; directional hydrolysis of tetraethyl orthosilicate (TEOS) to form a thin layer of silica on the surface of the composite precursor; subsequent calcination under an inert gas to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica; and finally, grafting with aminosilane to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica with surface-grafted aminosilane. The composite material prepared by this method can achieve continuous and efficient bactericidal action in concrete while increasing nucleation sites, promoting hydration, and effectively improving the early strength and durability of concrete.

The invention belongs to the field of regenerative cooling channels, and particularly relates to a wide-speed-range self-adaptive structure and method of a regenerative cooling channel. The structure comprises a spoiler and a metamaterial elastic connecting piece, wherein one end of the spoiler is connected with the metamaterial elastic connecting piece, and the other end of the spoiler is fixed on the wall surface of the air flow channel; the metamaterial elastic connecting piece is configured to form an acute included angle with the wall surface of the flow channel in a balance state; the spoilers are configured to be that under the action of fluid, the included angle between each spoiler and the wall face of the corresponding flow channel can be reduced along with increase of the fluid flow, and therefore self-adaptive adjustment that heat exchange is enhanced when the flow is low and resistance is reduced when the flow is high is achieved. The inclination angle is automatically adjusted through the movable spoilers under the action of fluid, and wide-speed-range heat management that heat exchange is enhanced at low flow and resistance is reduced at high flow is achieved.

The utility model provides a kind of anti-icing gate device, it is related to hydraulic engineering gate technical field, including: building, the upper position of building is equipped with a support frame, the middle position of support frame is equipped with a stable sleeve, the inner side position of stable sleeve is equipped with a group of driving mechanism, a vertical lifting rod is inserted between stable sleeve and driving mechanism, the upper position of gate body is provided with two symmetrical distribution stable grooves.In the side of gate, a sealing washer and a sealing plate are provided, the sealing washer and the sealing plate form a double-sealing structure to seal one side of the gate body, block the water from seeping into the beam grid of the gate, fundamentally reduce the risk of icing, at the same time, improve the overall waterproof performance of the gate, solve the problem that the beam grid on one side of the gate body is easy to freeze.

The invention relates to the technical field of medical treatment, and particularly discloses a red breaking liquid for bloody body fluid cell wax blocks. The red breaking liquid is prepared from absolute ethyl alcohol and distilled water, and the volume concentration of the absolute ethyl alcohol is 20%-30%; according to the method, the ethanol aqueous solution in a specific concentration range is adopted as a splitting system, efficient and selective splitting of the red blood cells in the bloody body fluid is realized, and cell membranes of the seedless red blood cells can be quickly destroyed by utilizing the dissolution effect of ethanol on cell membrane lipid and the hypotonic characteristic of the solution, so that contents of the seedless red blood cells are released and are easily eluted. Meanwhile, the morphological integrity and cell membrane antigenicity of nucleated cells (including tumor cells) can be protected to the greatest extent, and the problem of cell damage or antigen shielding possibly caused by a conventional hemolytic agent is avoided.

The invention discloses a demulsifier and a preparation method thereof, and belongs to the technical field of demulsifiers. The preparation method of the demulsifier comprises the following steps: adding ferric trichloride hexahydrate, sodium acetate and polyethylene glycol into a polyol solvent, uniformly mixing at 60-80 DEG C, then adding bentonite, carrying out ultrasonic dispersion for 20-40 minutes, then reacting at 180-250 DEG C for 20-30 hours, washing and drying; carrying out ultrasonic dispersion on the obtained magnetic bentonite in an organic solvent for 15-30 minutes, adding a silane coupling agent, stirring for 6-10 hours at 70-85 DEG C, collecting a magnet, washing and drying; and carrying out ultrasonic dispersion on the obtained silanized magnetic bentonite in an organic solvent for 15-30 minutes, dissolving an acrylate copolymer demulsifier and a sulfonate demulsifier in the organic solvent, then adding 4-dimethylaminopyridine, carrying out ultrasonic dispersion for 10-20 minutes, then adding into a silanized magnetic bentonite solution, stirring for 4-6 hours at 85-110 DEG C, and carrying out magnet collection, washing and drying, so as to obtain the water-soluble magnetic bentonite. The demulsifying agent is obtained. The demulsifier is safe and environment-friendly, and can repeatedly and efficiently realize demulsification.

The application discloses a kind of dry gas seal structures of LEROC-elliptical groove, including the dynamic ring and static ring being oppositely arranged along the axial direction;Wherein, the outer diameter side is high-pressure intake side, and the inner diameter side is low-pressure outlet side. The end face of dynamic ring or static ring is uniformly arranged with several LEROC triangular grooves and elliptical grooves along the circumference, and each LEROC triangular groove and elliptical groove is equal-depth groove structure formed by different circumferential trajectories. A plurality of micro-textures are provided in the sealing dam area, and the micro-textures are uniformly distributed in an array along the circumferential direction. The structure enhances the gas film dynamic pressure effect through the synergistic effect of LEROC-elliptical composite groove type, improves the opening capacity of the sealing surface, and effectively reduces the medium leakage. At the same time, it has the advantages of simple processing technology, high running stability and suitable for bidirectional rotation, and is suitable for popularization and application in dry gas seal devices under high-speed working conditions.