Abstract: The present invention relates to the field of fullerene application, and in particular to an application of fullerene and a derivative thereof in regulating intestinal flora. The fullerene and the derivative thereof may increase beneficial bacteria, decrease harmful bacteria and increase the abundance of intestinal flora when used for regulating intestinal flora, which is thus capable of relieving or treating human diseases (including gastrointestinal diseases, neurodegenerative diseases, metabolic diseases, sleep disorders, inflammation, tumors) and enhancing human immunity, improving animal physiques, regulating animal intestinal tracts, preventing or treating animal diseases, or promoting animal growth with great application prospect.

Abstract: The present disclosure discloses a method of manufacturing silicon dioxide nanoparticles modified by a polymer containing phosphorus and nitrogen, which relates to organic/inorganic hybrid nanoparticles, dispersing SiO2 in an organic solvent, then adding THPS, stirring, and finally adding p-phenylenediamine, reacting, centrifuging, washing, and drying to obtain silicon dioxide nanoparticles modified by a polymer containing phosphorus and nitrogen. The silicon dioxide nanoparticles modified by the polymer containing phosphorus and nitrogen have effects in flame retardancy, strengthening effect of polymer matrixes, and are expected to be widely used in the halogen-free synergistic flame retardancy of polymer materials.

Abstract: A data-control-oriented program static analysis method includes: compiling and interpreting a code of a smart contract to generate a bytecode of the code of the smart contract; resolving a control-flow relation between instructions of the bytecode, and building and printing a control-flow graph according to the control-flow relation; adding a taint source in the smart contract to an analysis result of a starting block of the control-flow graph, traversing the control-flow graph, performing a data dependence analysis based on a taint analysis technique, continuously updating an analysis result of a basic block in the control-flow graph; predefining an expression form of an analysis result and a basic operation related to the analysis result for the static analysis, controlling an updating of the analysis result according to a definition, and returning a final analysis result; and according to the final analysis result, generating and returning an analysis report.

Abstract: Disclosed are a phosphaphenanthrene-structure reactive flame retardant and an application thereof. The preparation method comprises: enabling 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), p-hydroxy benzaldehyde (4-HBA), and 5-aminomethyl-1,3-diphenyl-1,3,5-diphosphonitryl heterocycles to react under a certain condition to obtain the reactive flame retardant with a benzene ring rigid structure containing polyhydroxy. Compared with an ordinary flame retardant, the phosphaphenanthrene-structure reactive flame retardant has the characteristics that polyfunctionality is achieved, the molecular structure is stable, the hydrolysis resistance is better, and less migration in epoxy resin, moreover, the flame retardant property of the epoxy resin can be remarkably improved.

Abstract: The present disclosure discloses a method of manufacturing silicon dioxide nanoparticles modified by a polymer containing phosphorus and nitrogen, which relates to organic/inorganic hybrid nanoparticles, dispersing SiO2 in an organic solvent, then adding THPS, stirring, and finally adding p-phenylenediamine, reacting, centrifuging, washing, and drying to obtain silicon dioxide nanoparticles modified by a polymer containing phosphorus and nitrogen. The silicon dioxide nanoparticles modified by the polymer containing phosphorus and nitrogen have effects in flame retardancy, strengthening effect of polymer matrixes, and are expected to be widely used in the halogen-free synergistic flame retardancy of polymer materials.

Abstract: Disclosed are a phosphaphenanthrene-structure reactive flame retardant and an application thereof. The preparation method comprises: enabling 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), p-hydroxy benzaldehyde (4-HBA), and 5-aminomethyl-1,3-diphenyl-1,3,5-diphosphonitryl heterocycles to react under a certain condition to obtain the reactive flame retardant with a benzene ring rigid structure containing polyhydroxy. Compared with an ordinary flame retardant, the phosphaphenanthrene-structure reactive flame retardant has the characteristics that polyfunctionality is achieved, the molecular structure is stable, the hydrolysis resistance is better, and less migration in epoxy resin, moreover, the flame retardant property of the epoxy resin can be remarkably improved.