Physical Parameters in the Earthquake Source Region and Their Temporal Changes

1982 ◽  
pp. 361-403
Author(s):  
Tsuneji Rikitake
Keyword(s):  
Source Region ◽  
Temporal Changes ◽  
Earthquake Source ◽  
Physical Parameters

scholarly journals Spatial-temporal changes and regional differences of the sand-fixing service in the Beijing-Tianjin sandstorm source region

2019 ◽  
Vol 34 (5) ◽  
pp. 1041
Author(s):  
Biao ZHANG ◽  
Qing-xu LI ◽  
Shuang WANG ◽  
Gao-di XIE
Keyword(s):  
Regional Differences ◽  
Source Region ◽  
Temporal Changes

scholarly journals The Turkish Dilatancy Project (TDP3): multidisciplinary studies of a potential earthquake source region

1987 ◽  
Vol 91 (2) ◽  
pp. 265-286 ◽  
Author(s):  
R. Evans ◽  
D. Beamish ◽  
S. Crampin ◽  
S. B. Ucer
Keyword(s):  
Source Region ◽  
Earthquake Source ◽  
Multidisciplinary Studies

The role of the shear mach number in earthquake source dynamics

1976 ◽  
Vol 66 (6) ◽  
pp. 1787-1799
Author(s):  
Ari Ben-Menahem
Keyword(s):  
Mach Number ◽  
Particle Motion ◽  
Surrounding Medium ◽  
Earthquake Source ◽  
Physical Parameters ◽  
Moving Force ◽  
Functional Relations ◽  
Shallow Earthquakes ◽  
Klein Gordon ◽  
The Time Domain

abstract The effect of the rupture velocity upon the spatial and temporal dependence of earthquake source functions is investigated. To this end a model is suggested in which the fault zone is realized as a flexible membrane under the action of a moving force with additional stiffness forces provided by the surrounding medium. The motion of each particle of the membrane is impeded by a displacement-dependent friction and radiation damping. The particle motion along the fault is found to obey an inhomogeneous Klein-Gordon equation whose solutions are derived in closed form. In the time domain, the solutions yield a particle-motion function that has frequently been derived by analysis of earthquake seismograms. The physical parameters in the theoretical source function are found to depend strongly on the Mach number, as already predicted by the theoretical directivity function. The theory excludes the possibility of supersonic rupture and asserts a transonic rupture for major shallow earthquakes and subsonic rupture for seismic events with low and intermediate magnitudes. It predicts new functional relations between the initial particle velocity at the fault's tip, D˙0, the Mach number, M = ν/β, the rise time τ, the stress drop σ∞ and the fault length L.

scholarly journals 3D Vs ambient noise tomography of the 2016 Mw 6.4 Meinong Earthquake source region in Taiwan

2017 ◽  
Vol 28 (5) ◽  
pp. 693-701 ◽  
Author(s):  
Hao Kuo-Chen ◽  
Kai-Xun Chen ◽  
Wei-Fang Sun ◽  
Chun-Wei Ho ◽  
Yuan-Hsi Lee ◽  
...  
Keyword(s):  
Ambient Noise ◽  
Source Region ◽  
Earthquake Source ◽  
Ambient Noise Tomography

scholarly journals Stress value in 2003 Dayao MS6.1 earthquake source region

2011 ◽  
Vol 24 (4) ◽  
pp. 343-350
Author(s):  
Xiaofeng Xu ◽  
Yongge Wan ◽  
Huilin Wang
Keyword(s):  
Source Region ◽  
Earthquake Source

TIME AND TEMPERATURE DEPENDENT PIEZORESISTIVE BEHAVIOR OF CONDUCTIVE ELASTOMERIC COMPOSITES

2018 ◽  
Vol 91 (4) ◽  
pp. 651-667 ◽  
Author(s):  
Eshwaran Subramani Bhagavatheswaran ◽  
Klaus Werner Stöckelhuber ◽  
Sankar Raman Vaikuntam ◽  
Sven Wießner ◽  
Petra Pötschke ◽  
...  
Keyword(s):  
Electrical Resistance ◽  
Specific Effect ◽  
Temporal Changes ◽  
Rubber Matrix ◽  
Styrene Butadiene Rubber ◽  
Physical Parameters ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Conductive Rubber ◽  
Styrene Butadiene

ABSTRACT We report about systematic studies on dynamic piezoresistive characteristics of conductive rubber composites. The temporal changes in electrical resistance of flexible electrically conductive rubber composites were simultaneously monitored during dynamic mechanical loading. Thus, influences of physical parameters such as frequency, temperature, strain amplitude, and matrix stiffness were explored in detail, and the mechanisms behind qualitatively discussed. The filler clusters were found to rearrange in the elastomer matrix during dynamic deformation, witnessed by the decrease in electrical resistance over time. Each test parameter had its own specific effect on the piezoresistance response, and the findings offered an understanding on the filler networking inside the solution styrene butadiene rubber matrix from the perspective of the dynamic piezoresistive characteristics. Higher piezoresistive response was observed near the glass transition temperature. We offer a deeper insight into the behavior and temporal changes in corresponding filler clusters during dynamic deformations of conducting rubber systems.

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