Results 251 to 260 of about 151,601 (302)

Life on Mars? The physiological perspective

open access: yes
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source
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On seismic activity

pure and applied geophysics, 1966
Seismic activity at a point of the surface of the earth up to a given time has to be computed by the total energy per unit area at the point considered in consequence of the earthquakes up to that time. The definition of seismic activity of a region can be developed from that. Seismic activity in a given time-interval results from earthquakes up to the
Wolfgang Ullmann, Richard Maaz
openaire   +1 more source

Apollo 14 Active Seismic Experiment

Science, 1972
Explosion seismic refraction data indicate that the lunar near-surface rocks at the Apollo 14 site consist of a regolith 8.5 meters thick and characterized by a compressional wave velocity of 104 meters per second. The regolith is underlain by a layer with a compressional wave velocity of 299 meters per second.
J S, Watkins, R L, Kovach
openaire   +2 more sources

Investigation of Seismic Activity

2012
The Caucasus is one of the most active segments of the Alpine-Himalayan seismic belt (Khain 2000). The Caucasian region is characterized by intensive deformation and seismicity that accommodates the continental shortening between the Eurasian and Arabian plates, which are converging at a rate of about 30 mm/year (De Mets et al. 1990; Jackson 1992). The
Lev Eppelbaum, Boris Khesin
openaire   +1 more source

Active seismic imaging using microseismic events

SEG Technical Program Expanded Abstracts 2009, 2009
Summary The analysis and interpretation of microseismic data sets are receiving increased attention, both in the exploration industry for the characterization of hydrocarbon and geothermal reservoirs as well as in academia for the general understanding of seismogenic processes at plate boundaries.
A. Reshetnikov, S. Buske, S. Shapiro
openaire   +1 more source

Point process analysis for Italian seismic activity

Applied Stochastic Models and Data Analysis, 1996
Stochastic models for earthquakes prediction in four Italian most seismic regions are considered. Data on the earthquakes occurrence times (\(t_j\)) and magnitudes (\(m_j\)) since 1860 were used. The models are based on the conditional intensity of the marginal point process \(N(t)\) (the number of earthquakes till time \(t\)), \[ \lambda(t)=E\{(dN(t ...
B. Betro', LADELLI, LUCIA MARIA
openaire   +3 more sources

Demeter results related to seismic activity

2015
For many years, possible electromagnetic effects prior to earthquakes have been searched for in ground-based and satellite data. These events are interesting because they can be considered as short-term precursors (between a few hours and a few days).
Parrot, Michel, Li, Mei
openaire   +3 more sources

Faulting and seismic activity

1991
Abstract This chapter traces some of the ideas and concepts leading to the current understanding of the process of faulting and earthquake generation, gives examples of engineering geology investigations contributing to that understanding, describes some engineering projects that have been strongly influenced by the process, and suggests
openaire   +1 more source

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