Abstract: This study evaluates wavelet-based denoising techniques for partial discharge signals, specifically Damped Exponential Pulse (DEP) and Damped Oscillatory Pulse (DOP) types. We analyzed 63 ...
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The history of bells, sirens, and other sounds used to control public life
Long before phones buzzed in pockets, public life had its own loud operating system. Bells, drums, horns, whistles, and sirens told people when to wake, pray, work, gather, take cover, or pay ...
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