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Article
Open AccessLarge air pressure changes triggered by P-SV ground motion in a cave in northern Taiwan
Acoustic-gravity waves are generally considered to be one of the major factors that drive changes of the total electron content in the ionosphere. However, causal mechanisms of couplings between sources in the...
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Article
Development of a Combination Approach for Seismic Hazard Evaluation
We developed a synth esis approach to augment current techniques for seismic hazard evaluation by combining four previously unrelated subjects: the pattern informatics (PI), load/unload response ratio (LURR), ...
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Article
The Sensitivity of the Loa/Unload Response Ratio and Critical Region Selection Before Large Earthquakes
Occurrence of a large earthquake could be predicted by anomalous temporal increase of the Load/Unload Response Ratio (LURR). Previous studies have indicated that the stress field that existed before a large ea...
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Article
Multi-Methods Combined Analysis of Future Earthquake Potential
Prior to an earthquake, natural seismicity is correlated across multiple spatial and temporal scales. Many studies have indicated that an earthquake is hard to accurately predict by a single time-dependent pre...
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Article
Failure Potential Evaluation in Engineering Experiments Using Load/Unload Response Ratio Method
The Load/Unload Response Ratio (LURR) method is proposed for prediction of the failure of brittle heterogeneous materials. Application of the method typically involves evaluating the external load on materials...
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Article
Critical sensitivity of load/unload response ratio and stress accumulation before large earthquakes: example of the 2008 Mw7.9 Wenchuan earthquake
The Load/Unload Response Ratio (LURR) method is often defined as the ratio between Benioff strains released during the time periods of loading and unloading, corresponding to earth tide induced Coulomb Failure...
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Chapter and Conference Paper
State Vector: A New Approach to Prediction of the Failure of Brittle Heterogeneous Media and Large Earthquakes
The concept of state vector stems from statistical physics, where it is usually used to describe activity patterns of a physical field in its manner of coarsegrain. In this paper, we propose an approach by whi...
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Chapter and Conference Paper
Acoustic Emission Experiments of Rock Failure Under Load Simulating the Hypocenter Condition
A series of acoustic emission (AE) experiments of rock failure have been conducted under cyclic load in tri-axial stress tests. To simulate the hypocenter condition the specimens are loaded by the combined act...
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Article
State Vector: A New Approach to Prediction of the Failure of Brittle Heterogeneous Media and Large Earthquakes
The concept of state vector stems from statistical physics, where it is usually used to describe activity patterns of a physical field in its manner of coarsegrain. In this paper, we propose an approach by whi...
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Article
Acoustic Emission Experiments of Rock Failure Under Load Simulating the Hypocenter Condition
A series of acoustic emission (AE) experiments of rock failure have been conducted under cyclic load in tri-axial stress tests. To simulate the hypocenter condition the specimens are loaded by the combined act...
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Article
Load-Unload Response Ratio (LURR), Accelerating Moment/Energy Release (AM/ER) and State Vector Saltation as Precursors to Failure of Rock Specimens
— In order to verify some precursors such as LURR (Load/Unload Response Ratio) and AER (Accelerating Energy Release) before large earthquakes or macro-fracture in heterogeneous brittle media, four acoustic em...
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Article
Experimental research on critical point hypothesis
According to the critical point hypothesis (CPH), energy release would accelerate in power law before occurrence of large earthquakes or failure of brittle materials. In the paper, CPH was studied by acoustic ...
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Chapter
Load-Unload Response Ratio (Lurr), Accelerating Moment/Energy Release (Am/Er) and State Vector Saltation As Precursors To Failure of Rock Specimens
In order to verify some precursors such as LURR (Load/Unload Response Ratio) and AER (Accelerating Energy Release) before large earthquakes or macro-fracture in heterogeneous brittle media, four acoustic emiss...