1. Systems Engineering, Boston University, Brookline, MA, United States of America, 02446 (e-mail: xiaowei@bu.edu)
2. Mechanical / Systems Engineering, Boston University, Boston, MA, United States of America, 02215 (e-mail: cbelta@bu.edu)
3. Division of Systems Engineering, Boston University, Brookline, MA, United States of America, 02446 (e-mail: cgc@bu.edu)