Guohui Yin

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A novel hydroxyethyl piperazine functionalized cyanine derivative was designed and synthesized. It presents selective colorimetric as well as ratiometric absorption responses to trivalent metal cations (Cr3+, Fe3+ and Al3+) over a variety of divalent and monovalent metal cations in 3:7 ethanol-water solution. Detection limits of this method for Cr3+, Fe3+(More)
This essay deals with an improved active power filter based on the generalized instantaneous reactive power theory, of which the instruction current is calculated simply; which also will not be affected by voltage distortion and can be applied to unbalanced load current. The whole structure of electrical circuit is simple and has a good economy performance(More)
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