摘要
PAPER TITLE: AUTHOR(S): The author warrants that his/her contribution is original,has not been published previously,and is not under consideration for publication in any other refereed journals.And he/she has full power to make this grant.All authors sign for and accept responsibility for releasing this material. If the author needs to submit the paper elsewhere during the review process,he/she must declare its withdrawal to the editor prior to such submission.
