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  1. No Access

    Article

    Determination of Trace Amounts of Chromium(III) in Water Samples Using Online Flow Injection Catalytic Spectrophotometry

    A new online flow injection spectrophotometric method for the determination of trivalent chromium was developed. This method is based on the property of trivalent chromium to be a catalyst for the oxidation of...

    Z. X. Zhao, X. S. Zhang in Journal of Applied Spectroscopy (2017)

  2. No Access

    Article

    Determination of Trace Nickel in Natural Water by Flow Injection Analysis with Cetrimonium Bromide as Sensitizer

    2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) is a highly sensitive chromogenic reagent that can react with most of the transition and alkaline earth metals. The Ni(II)-5-Br-PADAP complex is more ...

    Z. X. Zhao, C. X. Zhang, N. Li, X. S. Zhang in Journal of Applied Spectroscopy (2015)

  3. No Access

    Article

    Identifying overlap** communities in social networks using multi-scale local information expansion

    Most existing approaches for community detection require complete information of the graph in a specific scale, which is impractical for many social networks. We propose a novel algorithm that does not embrace...

    H. J. Li, J. Zhang, Z. P. Liu, L. Chen, X. S. Zhang in The European Physical Journal B (2012)

  4. No Access

    Article

    Graph kernels, hierarchical clustering, and network community structure: experiments and comparative analysis

    There has been a quickly growing interest in properties of complex networks, such as the small world property, power-law degree distribution, network transitivity, and community structure, which seem to be com...

    S. Zhang, X.-M. Ning, X.-S. Zhang in The European Physical Journal B (2007)