1. Ph.D. Student, Univ. of Lyon/ENTPE, 69518 Vaulx-en-Velin, France (corresponding author).
2. M.Sc. Student, Federal Univ. of Ceará (UFC), Fortaleza, CE 60440-554, Brazil.
3. Full Professor, Federal Univ. of Ceará (UFC), Fortaleza, CE 60440-554, Brazil.
4. Researcher, Petrobras Research and Development Center (CENPES), Rio de Janeiro, RJ 21941-150, Brazil.
5. Associate Professor, Federal Univ. of Ceará (UFC), Fortaleza, CE 60440-554, Brazil.