% use section* for acknowledgement
\section*{Acknowledgment}
+This work is partially funded by the Labex ACTION program (contract ANR-11-LABX-01-01).
As a Ph.D. student, Ali Kadhum IDREES would like to gratefully acknowledge the
University of Babylon - Iraq for the financial support, Campus France (The
French national agency for the promotion of higher education, international
-student services, and international mobility), and the University of
-Franche-Comt\'e - France for all the support in France. This work is partially funded by the Labex ACTION program (contract ANR-11-LABX-01-01).
+student services, and international mobility).%, and the University ofFranche-Comt\'e - France for all the support in France.
+
