Models developed by X. Antoine, Y. Boubendir, M. El Bouajaji, D. Colignon, [[User:Geuzaine|C. Geuzaine]], N. Marsic, B. Thierry, S. Tournier and A. Vion. This work was funded in part by the Belgian Science Policy (IAP P6/21 and P7/02), the Belgian French Community (ARC 09/14-02), the Walloon Region (WIST3 No 1017086 ONELAB and ALIZEES), the Agence Nationale pour la Recherche (ANR-09-BLAN-0057-01 MicroWave) and the EADS Foundation (grant 089-1009-1006 High-BRID).