About DING Dayu
About Ashikaga Univ., Tochigi, JPN
About Science and Technology of Energetic Materials
About blasting supplies
About potassium perchlorate
About explosion
About sound effect
About combustion test
About sound
About structural parameter
About whistle sound
About Various explosives and propellants
About Combustion in general
About Potassium benzoate
About 火工品
About ホイッスル音
About 音響特性
About 研究