Funding for this research was provided by:
Army Research Office (W911NF-14-1-0573)
Horace H. Rackham School of Graduate Studies, University of Michigan (Rackham Merit Fellowship)
Division of Civil, Mechanical and Manufacturing Innovation (1653220)
Article History
Received: 28 December 2017
Accepted: 3 July 2018
First Online: 26 July 2018
Compliance with ethical standards
:
: Conflict of Interest: The authors declare that they have no conflict of interest.