About the Authors
- Shih-Wei Tan, Shih-Wen Lai
- Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, Republic of China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SWT. Performed the experiments: SWT. Analyzed the data: SWT. Contributed reagents/materials/analysis tools: SWT SWL. Wrote the paper: SWT.