Abstract: Time–frequency (TF) analysis (TFA) is a valuable tool for capturing nonstationary features in time-varying signals. However, for strongly amplitude-modulated and frequency-modulated (AM–FM) ...

President Trump’s threat of military action has confronted President Nicolás Maduro of Venezuela with the gravest challenge of his crisis-ridden reign. President Nicolás Maduro of Venezuela during a ...

Calculations of predictions for gravitational wave signals: theoretical physicists find new approach Gravitational wave astronomy has developed rapidly since the first direct measurement of ...

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When a plate drops or a glass smashes, you're annoyed by the mess and the cost of replacing them. But for some physicists, the broken pieces are a source of fascination: Why does everything break into ...