Browsing by Author "Ichihara M."
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Browsing by Author "Ichihara M."
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Ichihara M.; Ohkunitani H.; Kameda M.; Ida Y. (2004)Decrease of the velocity of a pressure wave in magma by the presence of bubbles is regarded as a fundamental process in seismoacoustic activities of a volcano. However, we show that the large viscosity of magma (≥105 Pa ...
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Ichihara M.; Rittel D.; Sturtevant B. (2002)Fragmentation of vesicular magma by rapid decompression is one of the most likely triggers for explosive eruptions. In this phenomenon the decompression rate and the viscoelastic nature of magma are considered to be key ...
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Ichihara M.; Kameda M. (2004)The main purpose of the present paper is to present the mathematical expression for the frequency-dependent effective acoustic properties of a liquid–bubble mixture. Effects of the bubble resonance, the heat and mass ...
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Marchetti E.; Ripepe M.; Ichihara M. (2004)Volcanic explosions generate pressure perturbations in the atmosphere and a seismic wavefield in the ground. The source is therefore well coupled with the atmosphere and the ground. The acoustic and elastic wavefields ...
Now showing items 1-4 of 4