7results about How to "Avoid uneven response" patented technology

The invention relates to the field of DNA amplification, in particular to an intelligent molecular diagnosis and analysis method, device and equipment and a storage medium. The method comprises the following steps: detecting multi-dimensional environmental parameters of the DNA amplification kit in real time based on a multi-dimensional sensing node; performing spatial topology layout mining and environment amplification perception fitting on the multi-dimensional environment parameters, and constructing a real-time amplification perception model; identifying a DNA amplification sample; performing layered temperature control analysis on the DNA amplification sample, and performing dynamic amplification constant-temperature control on the real-time amplification perception model, so as to construct a plurality of dynamic constant-temperature amplification models; carrying out regional DNA reaction degree evaluation on the plurality of dynamic isothermal amplification models one by one, and then carrying out regional flow velocity dynamic regulation, so as to construct a dynamic amplification reaction flow velocity regulation strategy; real-time amplification control is performed based on a dynamic amplification reaction flow rate adjustment strategy to generate a filter optimized amplification reaction signal. According to the method, the accuracy of molecular diagnosis analysis is improved through efficient and convenient DNA isothermal amplification.

The invention discloses a nickel-loaded hierarchical porous SAPO-34 catalyst and a preparation method and application thereof.The method comprises the steps that an aluminum source is added into a water solution of a phosphorus source, stirring is conducted, then a template agent and a silicon source are added, stirring and uniform mixing are conducted, and a precursor solution is prepared; carrying out hydrothermal reaction treatment on the precursor solution, and calcining a product to prepare an original SAPO-34 carrier; the preparation method comprises the following steps: putting an original SAPO-34 carrier into an organic acid solution, stirring, and drying and calcining to obtain an acid-treated SAPO-34 carrier; and adding the SAPO-34 carrier subjected to acid treatment into a Ni (NO3) 2 solution, fully stirring and uniformly mixing, drying, and carrying out heat treatment to obtain the nickel-loaded hierarchical porous SAPO-34 catalyst. The method is simple in process and reasonable in design, the catalyst has an excellent hierarchical porous structure and appropriate surface acidity, the reaction activity and selectivity of the catalyst are effectively improved, and the reaction energy efficiency is effectively improved.

This invention discloses a low-water-absorption boron nitride ceramic and its preparation method, belonging to the field of ceramic preparation. Addressing the problem that the high water absorption rate of existing boron nitride ceramics affects their wave transmission properties, this invention provides a method for preparing low-water-absorption boron nitride ceramics. The method includes boiling and drying a boron nitride ceramic matrix, followed by a first vacuum impregnation in silica sol; in-situ gelation of the boron nitride ceramic matrix immersed in silica sol, followed by gradual heating and drying to remove the surface gel; sintering and a second vacuum impregnation of the boron nitride ceramic matrix after surface gel removal; and drying the boron nitride ceramic matrix after the second vacuum impregnation to obtain the low-water-absorption boron nitride ceramic. The entire preparation process of this invention is simple, controllable, and easy to implement, which is beneficial for industrial production. Furthermore, the prepared boron nitride ceramic exhibits high density, low water absorption, excellent dielectric properties, and thermal shock resistance, making it suitable for preparing aerospace wave-transparent material components.

The invention relates to a heat dissipation material and a preparation method thereof, and belongs to the field of heat dissipation materials. The heat dissipation material comprises the following components: phenolic resin; a curing agent; a carbon nanotube; carbon fibers; and graphene. According to the heat dissipation material, the phenolic resin is used as a base material, and the heat dissipation material has good heat resistance, chemical stability and mechanical performance. In the heat dissipation material, mechanical support is provided, a three-dimensional network structure is formed through reaction with the curing agent, the heat conduction filler is wrapped in the three-dimensional network structure, and the overall structural stability is achieved. And the curing agent is used for carrying out cross-linking reaction with the phenolic resin. Carbon atoms in the carbon nanotubes form a highly ordered covalent bond structure through sp2 hybridization, and electrons can efficiently transmit heat in the carbon nanotubes. The excellent mechanical performance of the carbon fiber can provide good support and strength for the heat dissipation material, and the material is prevented from being broken or deformed in the using process.

The utility model relates to the technical field of titanium dioxide processing, in particular to a hydrolysis stirrer for titanium dioxide production, which comprises a support component and a stirring component, and the stirring component comprises a stirring barrel. The supporting assembly is added to be used for butt-joint installation of the stirring assembly and maintenance of the stability of the position of the stirring assembly, the hopper is installed on the support, is in butt joint with the stirring assembly and is used for guiding discharging of the stirring assembly in a matched mode and reducing the possibility of material scattering, and meanwhile the movable cutter assembly is installed on the side wall of the hopper and is matched with opening of a titanium dioxide raw material bag. After use, the cutter assembly can be stored on the side wall of the hopper to protect the cutter, and a worker can be prevented from touching the cutter by mistake; through the swing mechanism composed of the first air cylinder and the connecting rod mounted at the bottom of the stirring barrel, the stirring barrel can be swung at multiple angles to provide a better uniform mixing effect, titanium dioxide can completely participate in a hydrolysis reaction, and the situation that materials are adhered to the inner wall of the stirring barrel to cause uneven reaction of the materials is avoided.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment integrated device which comprises a treatment main body and further comprises a sewage treatment mechanism and a pretreatment mechanism, the sewage treatment mechanism is arranged on the treatment main body, the pretreatment mechanism is arranged on one side of the treatment main body, and a bubble suspension mechanism is arranged in the pretreatment mechanism. The sewage treatment mechanism comprises a rotary driving assembly, a photocatalytic reaction assembly, an anti-oxidation assembly and a bubble stirring assembly, the rotary driving assembly is arranged on the sewage treatment mechanism, the photocatalytic reaction assembly is arranged on one side of the rotary driving assembly, the anti-oxidation assembly is arranged on one side of the photocatalytic reaction assembly, and the bubble stirring assembly is arranged on the other side of the photocatalytic reaction assembly. The bubble stirring assembly is arranged on the rotary driving assembly; according to the sewage treatment mechanism provided by the invention, titanium dioxide is mixed with nitrogen in a water mist form and introduced into sewage, so that the surface area of the sewage can be greatly increased, and the efficiency of photocatalytic reaction is improved.

This utility model relates to the field of chemical technology, and in particular to an enhanced mixing reactor for recovering monomethylamine waste liquid. It includes a recovery tank with four legs arranged in a ring at the bottom. A feed pipe is connected to the right side of the top of the recovery tank. A drive motor is fixedly connected to the center of the top of the recovery tank. A stirring assembly is installed inside the recovery tank, and a waste gas collection assembly is installed on the left side of the recovery tank. The stirring assembly includes a circular cover installed at the top of the inner cavity of the recovery tank. A drive gear is installed in the center of the inner side of the circular cover, and a connecting shaft is fixedly connected to the center of the drive gear. Driven gears are symmetrically arranged on both sides of the inner side of the circular cover, and a rotating rod is fixedly connected to the center of each of the two driven gears. This allows for stirring of the waste liquid and acidic substances, preventing uneven reaction caused by excessively high local concentrations.