6results about How to "Improve core performance" patented technology

The application discloses a high-temperature-resistant silica gel composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. In view of the problems that existing silica gel is easy to be thermally degraded and brittle and has poor flame-retardant performance above 300 DEG C, the application uses methyl vinyl silicone rubber as a matrix, introduces specific structure organic flame retardant and epoxy modified nano cerium dioxide. The two are in-situ chemically bonded through epoxy groups and phenolic hydroxyl groups to construct a synergistic protection network, which significantly improves the dispersibility of the filler and prevents high-temperature migration. The material has excellent mechanical property retention rate at 350 DEG C extreme high temperature, and the flame-retardant grade reaches UL-94 V-0 level. By forming a dense Ce-P-O-C ceramicized carbon layer, oxygen and heat are effectively isolated, the technical problems that the silica gel is easy to crack and easy to burn in an extreme heat environment are solved, and the material is suitable for the fields of aerospace and electronic packaging.

This invention discloses a magnetic bead-antibody complex for detecting β-amyloid 42, its preparation method, and its application, enabling rapid, sensitive, and stable detection of β-amyloid 42 in blood. The method establishes a standardized coupling process by systematically optimizing key parameters such as feed ratio, buffer pH, and activation time, significantly increasing the antibody loading on the magnetic bead surface. Based on this, a dual-antibody sandwich chemiluminescence detection system is constructed. The kit can complete detection within 20 minutes, with a detection limit as low as 1.6 pg / mL, a linear range of 5–1000 pg / mL, intra- and inter-assay coefficients of variation (CV) of less than 6%, no cross-reactivity with common interfering proteins, and an average recovery rate of 96.09% in serum. This significantly improves the sensitivity, repeatability, and accuracy of Aβ42 detection, making it suitable for early screening, clinical diagnosis, and disease monitoring of Alzheimer's disease.

The application relates to a preparation method and application of a steel fiber reinforced graphite tailing cement-based composite filling material, and relates to the technical field of coal mine goaf foundation repair. A screening-impurity removal-drying combined process is adopted to obtain graphite tailing particles; in the critical range of 15%-20% of the graphite tailing content, each component is weighed according to the proportion, including steel fiber, cement, graphite tailing and mixing water, and a water reducing agent is selected according to the requirement; the steel fiber, the cement and the graphite tailing are mixed until the materials are uniformly mixed; the mixing water is added twice, the water reducing agent is pre-dissolved at the second time, and wet mixing is performed until a uniform slurry is obtained; after stirring is completed, the slurry fluidity is detected by using an expansion degree method, and the expansion degree is ensured to be 200-250 mm. The critical content range of the graphite tailing is determined, the mechanical properties-water cement ratio-water permeability performance of the composite filling material are synergistically optimal, the grouting fluidity and the late strength development are considered, and the performance requirement of the coal mine goaf foundation repair is met.

The invention discloses a multi-Agent cooperation intelligent number asking method and system for a shipping database based on RAG enhancement. The method comprises the following steps: training a relationship mining model based on a historical shipping business data table of a shipping enterprise; determining ERD relation description among the target shipping service data tables by utilizing a relation mining model and combining with an automatic script; constructing a special shipping business knowledge base and an SQL corpus knowledge base; the query analysis Agent is utilized to analyze the user question intention, and query intention description is obtained; relevant ERD relation description, SQL corpora and the like are recalled in the two knowledge bases through the RAG technology, and an enhanced retrieval result is generated after rewriting and duplicate removal; based on the enhanced retrieval result, utilizing a plurality of SQL generation Agents to generate SQL statements in parallel, and utilizing a decision tree to score the generated SQL statements to determine the SQL statement with the highest score; and executing the SQL statement with the highest score, if execution fails, reasoning an error reason according to the SQL corpus knowledge base, feeding back the error reason to the SQL generation Agent, and regenerating the SQL statement.

This invention discloses a low-temperature preparation technology for plasma-assisted hydrothermal synthesis of carbon nanotubes and its application in the field of cold cathode technology. It relates to the fields of carbon nanotube preparation and cold cathode technology, including the construction of a reaction system containing a catalyst precursor and a carbon source, and a hydrothermal reaction: the catalyst precursor is a phosphorus-free core-shell Ni-Mo-ammonium citrate complex, formed by nickel nitrate, sodium molybdate, and ammonium citrate in the order Ni... 2+ :MoO4 2‑ The reaction is carried out with a citrate molar ratio of 3:1:1.2. In this invention, phosphorus residue and catalyst agglomeration are eliminated by using a phosphorus-free core-shell catalyst, combined with a composite heteroatom source and ultrasonic-stirring dispersion process, and a three-stage pulsed plasma reaction at ≤190℃. This optimizes the quality of carbon nanotubes, eliminates the need for acid washing / annealing, and is compatible with flexible substrates. The cold cathode is fixed by a modified PET substrate and a metal-free transition layer, ultimately achieving a 1×10⁻⁶ reaction. ‑4 Achieving an on-state electric field ≤1.8V / μm, a threshold electric field ≤4.2V / μm, and a current density stability ≥90% under Pa conditions, this technology solves the problems of carbon nanotube quality, cost, substrate compatibility, and cold cathode performance in traditional technologies.

The invention discloses a quantum dot detector preparation method based on a one-step synthesis method, and belongs to the technical field of infrared detectors. The method comprises the following steps: providing a substrate; preparing a bottom electrode on the substrate; preparing a hole transport layer on the bottom electrode, wherein the hole transport layer comprises a NiOx thin film and a PbS-EDT thin film; preparing a quantum dot light absorption layer on the hole transport layer by adopting a one-step synthesis method, wherein the quantum dot light absorption layer comprises 1550nm PbS CQD; preparing an electron transport layer on the quantum dot light absorption layer, wherein the electron transport layer comprises a C60 thin film and a thin film; and preparing a top electrode on the electron transport layer. According to the method, after the 1550nm PbS colloidal quantum dots are synthesized by adopting a thermal injection method, a quantum dot cleaning step is omitted, liquid phase exchange is directly carried out, water and oxygen introduction and ligand damage are avoided fundamentally, the process is simplified, meanwhile, the surface stability of the quantum dots is guaranteed, and the performance and large-scale production potential of an infrared detector are improved.