Huifen Zhang

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The chemical composition of fulvic acid (FA) with a molecular weight below 500 (FA-500) was analyzed, and its activity on promoting the seed germination of wheat was studied in this paper. The FA-500 was obtained by membrane separation technology and qualitatively and quantitatively analyzed by using gas chromatography-mass spectrometry combined with the(More)
In order to overcome the problems of slow rate of convergence and falling easily into local minimum in BP algorithm, this paper discusses adaptive genetic neural algorithm and combining model by using genetic algorithm. The paper applies it to steam turbine-generators fault diagnosis. Case study shows that the algorithm converges quickly and diagnoses(More)
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