Figure 1: Planetary-wave amplitude anomalies during months of extreme weather. The statistically significant planetary-wave amplitude anomalies during months of extreme precipitation (that is, the ...

The figure shows a schematic for an oscillator amplitude-control servo system. The circuit creates a closed-loop system that supplies a fixed and adjustable peak-to-peak amplitude ac signal centered ...

In 1885, an English scientist, Lord Rayleigh, had hypothetically shown 3 that waves could be propagated over the plane boundary between a vacuum (or an adequately rarefied medium, air for example), ...

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Aircraft manufacturers, designers, and operators face many measurement and test challenges. New, large-capacity civil airframes which make better use of composite materials are being developed and ...

The 8.9-magnitude earthquake that struck Japan last Friday (Mar. 11) sent a deadly wall of water roaring ashore the country's main island of Honshu, killing hundreds and washing away cars and ...

T wave alternans refers to the variation of the T wave amplitude on an ECG on a beat-to-beat basis. Having significant T wave alternans is thought to increase the risk of ventricular arrhythmias and ...