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The research provided reliable quality control methods to establish the quality standards of Os Draconis. We studied the identification (physical and chemical identification), inspection (moisture, acid-insoluble ash, heavy metal and arsenic salt) and content determination of the whole 16 samples (including 12 raw samples and 4 calcined samples) of Os Draconis. In the physical and chemical identification,...
In this paper, the epoxy resin cured with methyl tetrahydrophthalic anhydride was decomposed by 1,2,3,4-tetrahydronaphthalene. The effects of reaction temperature, reaction time and feedstock ratio on the decomposition ratio of epoxy resin were studied respectively. It was found that the decomposition ratio of epoxy resin increased with an increase in reaction temperature and reaction time. The feedstock...
In this paper, the domestication of the activated sludge by which nitrobenzene can be degraded in a relatively poor nutrition is studied. The ability of activated sludge degradation of nitrobenzene is studied by degradation kinetics. The toxicology validation about the effect of activated sludge degradation of nitrobenzene is preliminarily explored. The results show that: The nitrobenzene could be...
Heilium film is introduced to the continuous wave DF/HF chemical laser gain nozzle design. The cavity flowfield's simulation results show the variation of gas dynamic and gain properties.
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