This article has been retracted: please see Elsevier policy on article withdrawal (https://www.elsevier.com/about/policies-and-standards/article-withdrawal).
This article has been retracted at the request of the Editor and the Authors.
The authors have plagiarized part of a paper that had already appeared in the journal TUS, Vol. 30, No. 2 (2015) 157-162. https://doi.org/10.13297/j.cnki.issn1005-0000.2015.02.013
One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. Consequently, the editor has lost confidence in the results and conclusions of the article and has determined it should be retracted.
The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.