Induced seismicity has been a serious problem for many coal mines in the Upper Silesian Coal Basin Poland decades. The occurring mining tremors of rock mass generate seismic vibrations that cause concern to local population and some rare cases lead partial damage buildings on surface. estimation peak ground acceleration values caused by high energy is an important part hazard assessment areas. ...

Ground-motion models have gained foremost attention during recent years for being capable of predicting ground-motion intensity levels future seismic scenarios. They are a key element estimating hazard and always demand timely refinement in order to improve the reliability maps. In present study, we propose ground motion prediction model induced earthquakes recorded The Geysers geothermal area....

Since the 2000s, local seismic hazard studies have shown that Mayotte Island presented superficial geological formations prone to lithological site effects. The sequence initiated in May 2018 confirmed importance of such effects, both terms intensity and spatial extension. analysis recorded strong motions showed weathered volcanic are significant effects with mean amplification factors for peak...

Abstract A hybrid seismic fragility model for territorial-scale vulnerability assessment of masonry buildings is developed and presented in this paper. The method combines expert-judgment mechanical approaches to derive typological curves Italian residential building stock. first classifies five different classes as function age construction, structural typology, behaviour damaging observed fol...

This paper presents results obtained by numerical study of sloshing effects in medium sized rectangular tanks subjected to a long-period seismic excitation. The Smoothed Particle Hydrodynamics (SPH) method is used, and the wave displacement and pressure are analysed. The intensity of sloshing effects depends not only on the peak ground acceleration but also on the dominant frequency of ground m...

BACKGROUND p-Phenylenediamine (PDA) or its related chemicals are used more extensively than oxidative hair dyes. However, permanent hair dyes such as PDA are known to have potent contact allergy reactions in humans, and severe allergic reactions are problematic. METHODS PDA-incorporated nanoparticles were prepared based on ion-complex formation between the cationic groups of PDA and the anion...

SHAKE2000 and DEEPSOIL are the two most important programs to calculate the response analysis of soil layer. In order to analyze the similarities and differences between them, and to guide the improvement of the method and program of seismic response analysis of soil layer, 25 KiK net seismic records from 9 stations were selected as the research objects in this paper, from the aspects of surfac...