نتایج جستجو برای: psha
تعداد نتایج: 124 فیلتر نتایج به سال:
Abstract The Neo Deterministic Seismic Hazard Assessment (NDSHA) is the innovative multi‐disciplinary scenario‐physics‐based approach for evaluation of seismic hazard and risks. When an earthquake occurs, ground shaking does not depend on its likelihood according to widespread Probabilistic Analysis (PSHA), which estimates are too often wrong. An “unlikely” can occur at any time and, sooner or ...
Probabilistic Seismic Hazard Assessment (PSHA) was carried out for the administrative region of Attica (Greece). Peak Ground Acceleration (PGA) and Velocity (PGV) values were calculated return periods 475 950 years five sub-areas covering entire region. PGA hazard curves Uniform Spectra (UHS) in terms spectral acceleration (Sa) generated Athens, Methana, capitals each island (Salamina, Aegina, ...
The Sorong–MakbonSorong–Makbon Corridor is one of the key routes connecting Sorong to other sections West Papua region in Indonesia. Throughout Sorong–Makbon Corridor, roads and slopes often sustain damage. When landslides reach road shoulder destroy pavement, they prevent access road. In addition influence surface water runoff, there are indications that earthquakes contribute ineffectiveness ...
در مناطق بسیاری از جهان خطر زلزله برای فعالیتهای بشر عاملی کافی جهت توجه دقیق در طراحی سازه ها و تاسیسات می باشد. تحلیل خطر زمین لرزه به تخمین کمی خطرات لرزش زمین در یک محل خاص مربوط میشود. خطرات لرزه ای در شرایطی که زلزله مشخصی مدنظر باشد، بصورت تعیینی و در شرایطی که اندازه، زمان و مکان زلزله قطعی نباشد به صورت احتمالی بررسی میشود. در روش تعیینی میزان بزرگی تولید شده و فاصله گسیختگی از ...
The ground motion attenuation relations have been proposed on an empirical basis and widely been used for ground motion prediction in convenient and efficient way. The accuracy of the predictions, however, is not so high given an earthquake magnitude and distance, the uncertainty of the relations has, say, 0.5 or more in a natural logarithmic standard deviation, which significantly governs the ...
Like all theories in any branch of physics, theories of the seismic source should be testable (i.e., they should be formulated so that they can be objectively compared to observations and rejected if they disagree). Unfortunately, many widely held theories of the seismic source, such as the elastic rebound paradigm and characteristic earthquake model, and theories for applying them to make prob...
Changes in mRNA and protein expression profiles of Shewanella oneidenesis MR-1 during switch from aerobic to fumarate-, Fe(III)-, or nitrate-reducing conditions were examined using DNA microarrays and two-dimensional polyacrylamide gel electrophoresis (2-D PAGE). In response to changes in growth conditions, 121 of the 691 arrayed genes displayed at least a two-fold difference in transcript abun...
Taiwan is located on the Pacific seismic belt, and the soil conditions of Taiwan’s offshore wind farms are softer than those in Europe. To ensure safety and stability of the offshore wind turbine supporting structures, it is important to assess the offshore wind farms seismic forces reasonably. In this paper, the relevant seismic and geological data are obtained for Chang-Bin offshore wind farm...
Iran is located in a seismically active region and exposed to seismic activity from many seismic sources and active faults. Probabilistic seismic hazard assessment is the basis for many pre and postearthquake risk management issues. Definition and parameterization of active faults and seismic sources are among the most important aspect for reliable PSHA studies. In this paper an effort in desig...
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