As part of an effort to develop a systematic methodology for earthquake forecasts, we use a simple model of seismicity based on interacting events which may trigger a cascade of earthquakes, well-known as the Epidemic-Type Aftershock Sequence model). The ETAS model is constructed on a (bare) Omori’s law, the Gutenberg-Richter law and the idea that large events trigger more numerous aftershocks....

The temperature evolution of the chiral condensates in a gas made of pions, kaons and etas is studied within the framework of SU(2) and SU(3) Chiral Perturbation Theory. We describe the temperature dependence of the quark condensates by using the meson meson scattering phase shifts in a second order virial expansion. We find that the SU(3) formalism yields an extrapolated melting temperature fo...

در این تحقیق به مقایسه تحلیلی و عددی آبشار جریان برگشتی مدل R با آبشارهای Q QI سیستم‌­های چندجزیی پایدار پرداخته می‌­شود. راستا برای اولین بار کدهای جهت طراحی منظور کد نرم‌افزار متلب نوشته شده‌­اند. نتایج نشان می‌­دهد که دو جزء 1k 2k از خوراک Nc جزء، تعداد معدودی قابل تعریف است همگی حالات خاصی می­‌باشد. هم‌­چنین یافته‌­ها مجموع مقدار برش جزیی همیشه برابر یک است. طریق داده می‌­شود صورتی میانگین ...

Abstract A hierarchical space–time version of the epidemic-type aftershock sequence (HIST–ETAS) model was constructed for an optimally adapted fit to diverse seismicity features characterized by anisotropic clustering as well regionally distinct parameters. This manuscript validates this elaborate short-term prediction based on several years recent inland Japan earthquakes a testing data set, e...

Evil Twin Attack (ETA) refers to attackers use a device impersonate legitimate hotspot. To address the problem of ETAs in WiFi network, Convolutional Neural Network (CNN) attack detection method is proposed. The uses preamble signal as feature and it train CNN based classification model. Next, trained model detect potential ETA by inconsistent identity claims feature. Experiments on commercial ...

SUMMARY The reliable forecasting of seismic sequences following a main shock has practical implications because effective post-event response is crucial in earthquake-stricken regions, aftershocks can progressively cause increased damage and compound economic losses. In the South Iceland Seismic Zone (SISZ), one two large transform zones where earthquake hazard highest, an intense sequence took...

Abstract Moderate-to-large-magnitude earthquakes induce considerable short-to-medium-term increases in seismic hazard, due to the subsequent occurrence of aftershocks. Most studies on aftershock models focus their performance as part Operational Earthquake Forecasting (i.e., real- or near-real-time predictions ongoing sequences). Aftershock model validation a longer timescale is scarcely dealt ...