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A Bacillus sp.YCJS strain showing phytase activity was isolated, and the phytase-encoding gene was cloned and expressed in Escherichia coli. The 1,149-bp full-length gene encoded a 26-residue putative signal peptide and a 356-residue mature protein. The molecular weight was estimated to be 47.5 kDa by sodium dodecyl sulfate-polyacrylamide gel(More)
OBJECTIVE To study the effect of different processing methods on the content and biological activity of main chemical constituents of Forsytiae Fructus, in order to provide the basis for rational processing of Forsytiae Fructus. METHOD The content of extracts was determined by the extract determination method of Chinese Pharmacopoeia. The effects of(More)
Big Data is a complex collection of huge amount of data records, everything around us is a source of big data that is too broad and too complex. Big data is generated by traditional data processing applications are inadequate. Many challenges are there in Big Data, they includes analysis of data in big data, capturing of data, data curtain, searching,(More)
The complicated interactions among tasks lead to iterations in product design and development. To maintain the market share, enterprises should effectively manage their product development project and bring their products to market as early as possible. The objective of the paper is to investigate how to analyze design iteration. Firstly, the improved(More)
Three naphthol Schiff base-type fluorescent sensors, 1,3-Bis(2-hydroxy-1-naphthylideneamino)propane (L1), 1,3-Bis(1-naphthylideneamino)-2-hydroxypropane (L2) and 1,3-Bis(2-hydroxy-1-naphthylideneamino)-2-hydroxypropane (L3), have been synthesized. Their recognition abilities for Al(3+) are studied by fluorescence spectra. Coordination with Al(3+) inhibited(More)
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