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Showing 1 to 10 of 10 for “"site effect"”.
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Microtremor recordings in Northern Mississippi: Evaluating site effect and correlating with wave climate
Site effects is considered as one of the main reasons that cause enormous damages in earthquakes and it is mainly controlled by the local geological condition. The main research area, Northern Mississippi, is located in Mississippi Embayment (ME) where is mainly composed of unconsolidated sediments …
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Finite element analysis of pin positioning in Lapidus procedure for treating Hallux Valgus
… pin, positioning of the pin from the fracture site, number of pins effecting the stability of the fixation device and fusion site, rail distance from the fusion site, effect of width and length of the rail, effect of fusion angle and effect of pin angle positioning in fusion the joint by using …
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Estimation of Non-Linear Seismic Site Effects for Deep Deposits of the Mississippi Embayment
… seismic hazard analysis with non-linear site effect performed in the ME to develop site coefficients. Current site coefficients, proposed in National Earthquake Hazard Reduction Program (NEHRP), are used with USGS hazard maps to develop site specific recommended response spectrum. The …
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Sn attenuation in the Northeast China
… allows us to measure, in some detail, to map the effective shear wave attenuation for the uppermost mantle. Eventually these kind of measurements could be used in determining uppermost mantle temperatures. We collected waveform data recorded by 127 stations from 140 earthquakes in a rectangular …
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Applications of planar-chiral heterocycles in asymmetric catalysis
… our group has developed lb as one of the most effective and versatile nonenzymatic acylation catalysts for the kinetic resolution of arylalkylcarbinols. Surprisingly, however, when the optimized reaction conditions were applied to the kinetic resolution of secondary propargylic alcohols, only …
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Ground Motion Prediction Equations for Non-Spectral Parameters using the KiK-net Database
… less than 45 km). The models developed consider site amplification using V<sub>S30</sub> and the depth to a layer with V<sub>S</sub>=800 m/s (h₈₀₀). We observe that the site effect for I<sub>α</sub> is magnitude dependent. For Ds<sub>5-95</sub> and Ds<sub>5-75</sub>, we also observe strong …
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Understanding Structure-Property Relationships for Palladium-Gold Nanoparticles as Colloidal Catalysts
… NP surface were demonstrated to be major active sites for TCE HDC as the reaction rates correlated strongly with the size of Pd ensembles determined from XAS. The geometric effect, in which atomic ensembles act as active sites, appeared to dominate over the mixed metal site effect and the …
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Characterizing microearthquakes and shallow structure with dense array and optical fibers
… of trade-offs with other wave propagation effects. The trade-offs with attenuation can cause the apparent stress drop to vary, resulting in an apparent breakdown of earthquake self-similarity. To date, researchers are still trying to understand the uncertainty in source parameter …
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The determination of QLg and Qc as a function of frequency in the crust of Virginia and its environs
… N = 1.1 ± 0.1 for the frequency band 1-4 Hz. A site effect corrected estimate of Q<sub>(Lg,C)</sub> was also determined for the study area. This was accomplished using a spectral ratio method in which station site effects and instrument responses are canceled out. For the frequency band 1-10 Hz …
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Microzonazione sismica di livello III in contesti archeologici: metodologie integrate per la protezione del patrimonio di Pompei
La presente tesi approfondisce la microzonazione sismica di livello III all’interno del Parco Archeologico di Pompei, uno dei siti culturali più rilevanti e vulnerabili al mondo. L’obiettivo principale è la definizione della risposta sismica locale in un contesto archeologico caratterizzato da …