**Author details**

J.H. Sun1\*, F.Y. Guan2 , X.F. Zhu3 , Z.W. Ning3 and T.J. Ma1

\*Address all correspondence to: jhsun@mail.ie.ac.cn

1 State key laboratory of transducer technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China

2 International Centre for Bamboo and Rattan, Key Laboratory of Bamboo and Rattan, Beijing, China

3 Beijing Municipal Institute of Labour Protection, Beijing, China

## **References**

