Results 41 to 50 of about 820,309 (388)

An automatic P-wave onset time picking method for mining-induced microseismic data based on long short-term memory deep neural network

open access: yesGeomatics, Natural Hazards & Risk, 2022
The automatic P-wave onset time (P-onset) picking of microseismic (MS) waveforms generated during rock failure is the basis of and key to locating the source and exploring the failure mechanism of rock failure in underground engineering.
Haiyan Xu   +5 more
doaj   +1 more source

Tidal influence on Rutford Ice Stream, West Antarctica: observations of surface flow and basal processes from closely-spaced GPS and passive seismic stations [PDF]

open access: yes, 2008
High-resolution surface velocity measurements and passive seismic observations from Rutford Ice Stream, West Antarctica, 40 km upstream from the grounding line are presented.
A.E. Behar   +11 more
core   +2 more sources

Glacier sliding, seismicity and sediment entrainment

open access: yesAnnals of Glaciology, 2019
The evolution of glaciers and ice sheets depends on processes in the subglacial environment. Shear seismicity along the ice–bed interface provides a window into these processes. Such seismicity requires a rapid loss of strength that is typically ascribed
B. Lipovsky   +6 more
semanticscholar   +1 more source

Seismicity and seismic hazards

open access: yes, 2001
Many earthquakes occur along Canada's western margin near the edge of the North American Plate, but others occur within the plate in Arctic and southeastern Canada. Damaging earthquakes have occurred throughout history in both Eastern and Western Canada, and will undoubtedly recur in the future.
J J Adams, P Basham
openaire   +1 more source

Adaptively Smoothed Seismicity Earthquake Forecasts for Italy

open access: yes, 2010
We present a model for estimating the probabilities of future earthquakes of magnitudes m > 4.95 in Italy. The model, a slightly modified version of the one proposed for California by Helmstetter et al. (2007) and Werner et al.
Helmstetter, A.   +4 more
core   +5 more sources

Mechanical Characteristics and Stress Evolution of Cemented Paste Backfill: Effect of Curing Time, Solid Content, and Binder Content

open access: yesFrontiers in Materials, 2022
The clarification of the variation on the strength of the cemented paste backfill (CPB) under the coupling of multi-factor is the foundation of the CPB design of the mine.
Chen Hou, Liujun Yang, Lei Li, Baoxu Yan
doaj   +1 more source

NEW SEISMIC SOURCE ZONE MODEL FOR PORTUGAL AND AZORES [PDF]

open access: yes, 2010
The development of seismogenic source models is one of the first steps in seismic hazard assessment. In seismic hazard terminology, seismic source zones (SSZ) are polygons (or volumes) that delineate areas with homogeneous characteristics of seismicity ...
Arvidsson, R.   +16 more
core  

Triggered seismicity associated with the 1990 Nicoya, Costa Rica, M-w=7.0 earthquake [PDF]

open access: yes, 2009
The 25 March 1990 (M-w = 7.0) subduction megathrust earthquake that occurred offshore the Nicoya Peninsula, Costa Rica, produced a large number of aftershocks on the subduction plate interface as expected and preceded an unusual sequence of earthquakes ...
Bilek, SL   +2 more
core   +1 more source

Tunable Plug‐and‐Play Meta‐Nanogenerator Materials for Multi‐Range Force Measurements

open access: yesAdvanced Science, EarlyView.
The multifunctional and tunable meta‐nanogenerator material system combines a mechanical metamaterial and a triboelectric nanogenerator enabling self‐powered, real‐time force sensing across application‐specific ranges. Geometrical tuning adjusts stiffness and the force sensing range, while modular integration streamlines assembly.
Roshira Premadasa   +6 more
wiley   +1 more source

Experimental and numerical simulation on the sliding process of roof rock blocks triggered by dynamic disturbance

open access: yesUnderground Space, 2023
With the excavation of underground opening, the roof rock block may fall under external dynamic disturbance. In this paper, the roof rock mass was simplified as a rock block system composed of trapezoidal rock blocks.
Feng Dai   +4 more
doaj   +1 more source

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