7 results about "Solution synthesis" patented technology

The invention discloses a big language model credible reasoning system and method based on double-flow cognitive loss and solution synthesis, and aims to solve the problem of'compliance illusion 'caused by the fact that a big language model cannot process internal and external knowledge conflicts. The invention provides a double-flow cognitive engine, which is used for executing a'this-my 'flow of internal knowledge of a simulation model and a'super-my' flow strictly following an external document in parallel so as to generate two opposite cognitive state vectors. The system calculates a semantic conflict score between the two vectors in real time through a cognitive disorder detector. When the conflict is significant, the system activates and demodulates the synthesis module, and actively generates a text for solving the conflict; when there is no conflict, the output of the "super-my" stream is continued to ensure factuality. According to the method, cognitive conflicts are explicitly and actively solved, and a large language model is transformed into an inference engine with inherent critical thinking and high credibility.

The invention belongs to the technical field of detection materials, and relates to a double-perovskite-based luminescent material, a preparation method thereof and application of the double-perovskite-based luminescent material in luminescent imaging or anti-counterfeiting. The molecular formula of the double-perovskite-based luminescent material is Cs2NaCrCl6: Tm < 3 + > / Yb < 3 + >, the molar doping concentration of Tm < 3 + > is 0.5-5%, and the molar doping concentration of Yb < 3 + > is 2-80%. The preparation method comprises the following steps: dissolving cesium chloride, sodium chloride, chromium chloride, thulium chloride and ytterbium chloride in water according to a stoichiometric ratio, uniformly mixing, carrying out a solution synthesis reaction, and evaporating to remove a solvent, thereby obtaining the product. The double-perovskite-based luminescent material provided by the invention can generate light with different colors, can realize multiple anti-counterfeiting, is simple in preparation process and low in cost, and is beneficial to realizing industrial large-scale production.

The invention discloses a few-seed-crystal strategy for extendable solution synthesis of a large-area single crystal film. The uniformity of the single crystal film processed by a large-scale solution in form and crystal structure is proved from multi-scale characterization. The synthesized single crystal film shows excellent electrical performance indexes: the Hall effect mobility at room temperature is as high as 21 cm < 2 > V <-1 > s <-1 >, and the trap state density is as low as 6.6 * 10 < 8 > cm <-3 >.

The invention discloses a preparation method of a homogenized polyamide acid solution and a used reaction device, and belongs to the technical field of polyamide acid solution synthesis. The preparation method comprises the following steps: dissolving diamine in a reaction kettle by using a polar aprotic solvent, and adding dianhydride into the reaction kettle to carry out condensation polymerization, compared with the prior art, in the step of adding dianhydride into a reaction kettle for polycondensation reaction, non-reaction gas is continuously introduced into a polymerization reaction system in the kettle. By adopting the method disclosed by the invention, the polyamide acid solution with high molecular weight and narrow molecular weight distribution can be obtained in a relatively short time.

The present invention provides a radioactive drug solution synthesis apparatus and a method for cleaning replacement modules that can suppress the retention of residual substances in the line. [Solution] The radioactive drug solution synthesis apparatus 10 introduces cleaning solution into one container and overflows the cleaning solution from the other container to introduce it into the suction line. This allows the suction line to be cleaned with the cleaning solution. Here, target water does not actually pass through the vacuum lines L2 and L9, but rather volatile vapor adheres to them. There was a need to easily clean such residues. In response to this, the vacuum lines L2 and L9 can be cleaned with a simple operation of overflowing cleaning solution from one container, without adding any mechanisms.

The invention relates to the technical field of luminescent materials, in particular to a preparation method of a copper-based metal halide composite material paper X-ray scintillator, which adopts a simplest and direct solution synthesis method, is simple and convenient to operate, does not involve complex processes and high-energy equipment, has strong repeatability and can be quickly produced on a large scale. The defects of high temperature, high pressure and the like of traditional fluorescent powder preparation are avoided; the flexible scintillator film can be rapidly obtained according to the size of a paper base through a prime coat method; the scintillator is rich in raw material source, low in production cost, high in commercial use value and capable of being applied to the fields of X-ray flat panel detectors, CT detectors and the like, and in this way, the technical problem that in the prior art, a scintillator is limited in the aspect of X-ray imaging due to low spatial resolution and material toxicity of the scintillator in the prior art is solved.

The application belongs to the technical field of detection materials, and relates to a double-perovskite-based luminescent material, a preparation method thereof and application of the double-perovskite-based luminescent material in luminescent imaging or anti-counterfeiting. 3+ / Yb 3+ The molar doping concentration of Tm 3+ is 0.5-5%, and the molar doping concentration of Yb 3+ is 2%-80%. The preparation method is as follows: cesium chloride, sodium chloride, chromium chloride, thulium chloride and ytterbium chloride are dissolved in water according to the stoichiometric ratio, uniformly mixed and subjected to a solution synthesis reaction, and then the solvent is evaporated to obtain the double-perovskite-based luminescent material. The double-perovskite-based luminescent material provided by the application can generate light of different colors, can realize multiple anti-counterfeiting, and has the advantages of simple preparation process, low cost and being conducive to industrialized mass production.