That modern armed helicopter flies at super low space makes radar system useless, so it is important to identify and locate a helicopter through its flying noise.
Object to investigate the difference of DNA between the workers with super sensitive and non sensitive hearing to noise exposure.
目的探讨听力对噪声敏感者与不敏感者在DNA水平是否存在差异。
3
But the normalized auto-correlation of real seismic acceleration record comprises an obviously random noise with amplitude value of 0.15 or so, that is so called super random content.