1. Karlsruhe Institute of TechnologyInstitute for Chemical Technology and Polymer Chemistry Kaiserstraße 12 76133 Karlsruhe Germany
2. Beijing Institute of TechnologyNational Key Laboratory on Electromechanical Dynamic Control 5 South Zhongguancun Street 100081 Beijing China
3. Imperial College LondonDepartment of Earth Science and Engineering South Kensington Campus SW7 2BP London UK