About HIGASHI TOORU
About OKUZOE KEIGO
About 熊本大学教育学部紀要
About power generation
About piezoelectricity
About teaching material
About piezoelectric device
About science education
About engineering education
About energy conversion efficiency
About electric resistance
About energy storage
About visualization
About piezoelectric effect
About load resistance
About internal resistance
About Engineering education
About Piezoelectric devices
About 圧電効果
About 発電
About 教材