Kyu-Chil Park

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For telecommunication, radio waves are used in the air, whereas acoustic waves are used in underwater using transducers and hydrophones. And the underwater acoustic communication channels are very complicated than in the air, because of vertical distribution of acoustic velocity according depths, and reflections from boundaries like as surface or bottom,(More)
Insulators are important equipment used to electrically isolate and mechanically hold wires in high-voltage power transmission systems. Faults caused by the deterioration of the insulators induce very serious problems to the power transmission line. Techniques were introduced for the acoustic detection of insulator faults by acoustic radiation noises.(More)
125 Abstract— P300 component of the event-related brain potential (ERP) reflects fundamental cognitive processes. The P300 components have been employed in a wide variety of theoretical, empirical, and clinical applications. In oddball paradigm for eliciting P300, we need standard stimuli and target stimuli. Firstly, designated stimuli are presented to(More)
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