搜索结果: 1-11 共查到“地球物理学 critical”相关记录11条 . 查询时间(0.193 秒)
A critical review of Electric Earthquake Precursors
Earthquake precursor earthquake prediction electric earthquake precursor (EEP) seismic electric signal (SES)
2015/9/28
The generation of transient electric potential prior to rupture has been demonstrated in a number of laboratory experiments involving both dry and wet rock specimens. Several different electrification...
A critical history of British earthquakes
historical earthquakes seismicity earthquake catalogues
2015/9/14
This paper reviews the history of the study of historical British earthquakes. The publication of compendia of British earthquakes goes back as early as the late 16th Century. A boost to the study of ...
Software for the automatic scaling of critical frequency f0F2 and MUF(3000) F2 from ionograms appliedat the Ionospheric Observatory of Gibilmanna
ionograms automatic scaling ionosonde
2015/9/11
Software for the automatic scaling of critical frequency f0F2 and MUF(3000)F2 from ionograms was developed and applied to the ionograms produced by the new Advanced Ionospheric Sounder installed at th...
Interactive activities to stimulate debate and critical thinking about issues related to Earth sciences and sustainable development
Earth science education Sustainable development Exhibition Action research Critical thinking
2015/8/26
During the International Year of Planet Earth (2007-2009), the Department of Earth Sciences of Turin University and a local Museum of Natural History promoted a project entitled, Understanding how the...
NSF awards $1.35 million for new institute focused on Earth's critical zone: Where rock meets life（图）
earth meets life
2014/12/1
Scientists at observatories across the United States who study Earth's thin but life-sustaining veneer are getting new resources to answer questions with global implications.
A simple model for the earthquake cycle combining self-organized complexity with critical point behavior
earthquake cycle self-organized complexity critical point behavior
2009/11/12
We have studied a hybrid model combining the forest-fire model with the site-percolation model in order to better understand the earthquake cycle. We consider a square array of sites. At each time ste...
Evaluation on the analogy between the dynamic magnetosphere and a forced and/or self-organized critical system
Evaluation on the analogy dynamic magnetosphere self-organized critical system
2009/11/12
The dissipation power and size of auroral blobs are investigated in detail to examine the possible analogy between the dynamic magnetosphere and a forced and/or self-organized critical system. The dis...
Evolving towards a critical point:A possible electromagnetic way in which the critical regime is reached as the rupture approaches
critical point possible electromagnetic way critical regime rupture approaches
2009/11/12
In analogy to the study of critical phase transitions in statistical physics, it has been argued recently that the fracture of heterogeneous materials could be viewed as a critical phenomenon, either ...
Modelling the outer radiation belt as a complex system in a self-organised critical state
outer radiation belt complex system self-organised critical state
2009/11/11
The dynamic behaviour of the outer electron radiation belt makes this area of geo-space a candidate for the concept of self-organized criticality. It is shown here that frequency distributions of meas...
Anomalies of critical state in fracturing geophysical objects
Anomalies critical state geophysical objects
2009/11/2
Non-linear time-sequences of fracture-related events were studied in drifting sea-ice and fracturing rock. A reversible drop of the b-value was detected prior to the large-scale sea-ice cover fragment...
Is the critical Shields stress for incipient sediment motion dependent on channel-bed slope?
critical Shields stress incipient sediment motion channel-bed slope
2014/4/8
Data from laboratory flumes and natural streams show that the critical Shields stress for initial sediment motion increases with channel slope, which indicates that particles of the same size are more...