Optimization of Balsa Wood’s Triboelectric Properties through Chemical and Conductive Modifications for Self-Powered Sports Sensors ( Optimization of Balsa Wood’s Triboelectric Properties through Chemical and Conductive Modifications for Self-Powered Sports Sensors) - Amirmohammad Shahriyari -Amirmohammad Shahriyari -Milad Yousefizad -Farzaneh Abooei Mehrizi -Pouya Paydari -Negin Manavizadeh | JOURNAL OF CHARACTERIZATION