We investigate the deformation induced by water pressure variations in hydrologicallyactive natural fractures, and recorded by tiltmeters and strainmeters. The deformation associated with a single fracture is derived using finite-element modeling (FEM). A range in fracture geometries is explored, first to highlight the sensitivity of each geometrical parameter to the deformation, and secondly t...

three nearly simultaneous events around the end of the 19th century, i.e., the discovery of x‐rays by roentgen in 1895, natural radioactivity by antoine‐henri becquerel in 1896 and isolation of radium by the curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. at the close of the 20th century, fundamental discoveries in biology at mo...

Thermal plasma measurements from the Dynamics Explorer 1 spacecraft using an aperture bias in the outer plasmasphere and over the polar cap show the existence of cold plasma (T ~1 eV) which may otherwise be hidden from the particle detector by positive spacecraft potentials. Operations of the retarding ion mass spectrometer instrument with the external aperture plane biased up to -8 V with resp...

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s). “Quantitative estimation of compaction and velocity changes using 4D impedance and traveltime changes” by Landro and Stammeijer (Geophysics, 2004). “Observations and analysis of B-type earthquakes, explosions, and volcanic tremor at Pavlof volcano, Alaska” by McNutt (Bulletin of the Seismological Society of America, 1986). “Coda wave interferometric detection of seismic velocity changes ass...