1. Department
of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts 02115, United States
2. Departamento
de Ingeniería Mecánica and Centro Científico
Tecnológico de Valparaíso (CCTVal), Universidad Técnica Federico Santa María, Valparaiso, Chile
3. Department
of Computational and Applied Mathematics, Rice University, Houston, Texas 77005, United States