5results about How to "Easy to migrate" patented technology

This invention discloses a flame-retardant quartz slab and its preparation method, relating to the field of quartz slab technology. The flame-retardant quartz slab is prepared from raw materials comprising the following parts by weight: 70-120 parts quartz particles, 5-15 parts unsaturated polyester resin, 10-30 parts organophosphorus flame retardant, 2-5 parts silane coupling agent, 0.5-2 parts curing agent, 0.1-0.5 parts accelerator, 2-8 parts inorganic filler, and 0.5-3 parts color paste. This invention uses a novel organophosphorus flame retardant, which, compared to traditional flame retardants, effectively improves the flame retardancy rating of the quartz slab, avoids the release of toxic and harmful gases during combustion, and does not require large-dose addition, overcoming the shortcomings of low efficiency of inorganic flame retardants and the environmental unfriendliness of bromine-based flame retardants.

The application discloses a robot cell microinjection operation method based on dynamic balance game mechanism reinforcement learning. The method comprises the following steps: training an injection operation decision model using a total loss function; the total loss function comprises a loss of a PPO reinforcement learning network, an entropy regularization term and a state prediction loss of a state prediction network; during the robot cell microinjection operation process, injection environment images are collected in real time, input into an instance segmentation network model, and environment mask images are obtained; the injection needle tip real-time coordinates and cell mask images are obtained according to the environment mask images; a feature extraction network receives the cell mask images, a PPO reinforcement learning network receives the feature extraction results and the injection needle tip real-time coordinates, and the expected position of the injection needle tip is obtained as feedback information to control the robot. The application can perform safe and high-precision zebrafish embryo cell microinjection operation in a real scene, and provides technical support for the fields of gene editing and cell breeding.

A small target detection method, system, device and medium based on a local attention feature correlation mechanism, the method comprising: data preprocessing, model construction, model training, small target detection; the system, device and medium are used to realize a small target detection method based on a local attention feature correlation mechanism; the application extracts spatial features and semantic features through a residual network, performs feature fusion through a feature pyramid mechanism, reconstructs features based on a local attention feature correlation mechanism, trains a model using a Hungarian matching algorithm, obtains an optimal matching model suitable for a data set, can ensure high accuracy with fewer iteration times, and has the characteristics of low network operation complexity, low training cost, easy model migration, and high model detection performance.

The application relates to the technical field of thermal insulation materials, and discloses a flame-retardant modified thermal insulation foam material and a preparation process thereof. The flame-retardant modified thermal insulation foam material is prepared from low-density polyethylene as a main material and 3,5-di-tert-butyl-4-hydroxyphenyl acetic acid grafting material and the like as auxiliary materials. Silicon phosphorus boron in the hydroxyl-terminated polydimethylsiloxane grafting material serves as a flame-retardant element, a dense thermal insulation oxygen isolation silicon phosphorus boron composite carbon layer is constructed at high temperature, and the flame-retardant effect is achieved. After 3,5-di-tert-butyl-4-hydroxyphenyl acetic acid is grafted to carboxyl-terminated polybutadiene, the antioxidant unit is fixed on the flexible long chain of the carboxyl-terminated polybutadiene through chemical bonding, the antioxidant activity of the antioxidant unit is retained, and the agglomeration phenomenon is inhibited, so that the flame-retardant modified thermal insulation foam material prepared by the application has the flame-retardant, antioxidant and thermal insulation performances.

The utility model discloses a multistage dispersed processing formula sludge low carbon drying device belongs to sludge treatment technical field. A multistage dispersed processing formula sludge low carbon drying device, including drying case and return air box, the drying case is mutual through with return air box, the top of return air box is provided with scattering hopper, wherein, the blanking tube of scattering hopper bottom extends to the inside of return air box, and the inside of scattering hopper is provided with split blade. To solve the existing sludge treatment after high pressure dewatering sludge under the influence of pressure can be agglomerated, this can lead to the subsequent drying process moisture not easy completely evaporates, and the sludge conveying of agglomeration is very inconvenient problem, multistage dispersion mechanism ring after ring, layer by layer progression, ensure that the sludge mass of different size, hardness is effectively broken into small granules, loose granule state greatly increased the specific surface area of sludge, makes moisture more easily migrates to the surface and evaporates.