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They may be used in the stochastic earthquake model as well.
The stochastic optimal control of an active tension control system is investigated, subjected to the random ground motion represented by a physical stochastic earthquake model.
We demonstrate the correctness of the method with analytic tests, and we demonstrate its practical performance by solving a realistic earthquake model to extremely high precision.
The source model definition and the probabilistic seismic hazard evaluation at the regional scale (central Apennines) were obtained using three different seismicity models (Gutenberg Richter model; characteristic earthquake model; hybrid model), consistent with the available seismological information.
The problem, Dr. Heaton said, is "we might never be able to predict in detail which of the small quakes will become large". While many scientists share this pessimism, Dr. Gregory Beroza and Dr. William Ellsworth, geophysicists at the Geological Survey office in Menlo Park, Calif., recently proposed an earthquake model that could provide a way of knowing which earthquakes are destined to be large.
The Conte Peng's equations for a fully nonstationary model of an earthquake are reformulated as modulated filtered white-noise processes so that the reliabilities of a linear structure under the fully nonstationary earthquake model can be estimated through calculating the first passage time probabilities of several time-varying linear systems subjected to independent white-noise processes.
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"Uncertainty treatment in earthquake modeling using Bayesian probabilistic networks". GeoRisk, 5(1), 44 58.
In this paper, expressions are developed for time-dependent mean-square responses of the dashpot system to two earthquake models.
The Collaboratory for the Study of Earthquake Prediction is an international project to compare on an equal footing the forecasts of various earthquake models in different parts of the world.
This information could improve fault source and earthquake models used in seismic and tsunami hazard assessment in this and similar regions.
However, in terms of the scenario for the occurrence of the Tohoku earthquake, Model-1 is sufficient to represent the key points (importance of the stress concentration around the hypocenter).
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