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This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn by the author due to a crucial sign error in equation 1

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn by the author(s), due to technical copyright problems with the Royal Society of Chemistry.

The paper has been withdrawn by the author due to a the manuscript error.

Major mistake. The paper has been withdrawn.

This paper has been withdrawn, due a wrong analysis of the obtained results.

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

The paper has been withdrawn by the author.

This paper has been withdrawn by the authors.

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This paper has been withdrawn by the author due to a crucial errors.

This paper has been withdrawn by the authors.

The paper contains an error in Eqs. (14) and (15) and has been withdrawn by the author.

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.