Articles with "spectral ratios" as a keyword



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Vertical ground motion prediction equations and vertical-to-horizontal (V/H) ratios of PGA and PSA for Algeria and surrounding region

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Published in 2019 at "Bulletin of Earthquake Engineering"

DOI: 10.1007/s10518-019-00635-y

Abstract: The paper presents a ground motion prediction equation (GMPE) for the vertical pseudo spectral acceleration for periods varying from 0.02 to 4 s. The model is derived from the same strong motion database as previously considered… read more here.

Keywords: motion; period; spectral ratios; ground motion ... See more keywords
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Geophysical and geologic surveys of the areas struck by the August 26th 2016 Central Italy earthquake: The study case of Pretare and Piedilama

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Published in 2017 at "Journal of Applied Geophysics"

DOI: 10.1016/j.jappgeo.2017.07.016

Abstract: Abstract A MW6.0 earthquake struck the Central Italian Apennines on August 24th 2016, followed by an important seismic sequence characterized by hundreds of aftershocks. The earthquake caused fatalities and partially destroyed several towns surrounding the… read more here.

Keywords: shear wave; spectral ratios; wave velocity; pretare piedilama ... See more keywords
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Regional spectral ratios as potential neural markers to identify mild cognitive impairment related to Alzheimer's disease.

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Published in 2022 at "Acta neuropsychiatrica"

DOI: 10.1017/neu.2022.18

Abstract: OBJECTIVE Alzheimer's disease (AD) has prolonged asymptomatic or mild symptomatic periods. Given that there is an increase in treatment options and that early intervention could modify the disease course of AD, it is desirable to… read more here.

Keywords: mild cognitive; alzheimer disease; neural markers; spectral ratios ... See more keywords
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Investigation of Relationship between the Response and Fourier Spectral Ratios Based on Statistical Analyses of Strong-Motion Records

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Published in 2020 at "Journal of Earthquake and Tsunami"

DOI: 10.1142/s1793431121500081

Abstract: In both seismic design and probabilistic seismic-hazard analyses, site effects are typically characterized as the ratio of the response spectral ordinate on the ground surface to that on the bedrock based on the scaling law… read more here.

Keywords: fourier spectral; response; spectral ratios; investigation relationship ... See more keywords
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Assessment of nonlinear site response at ocean bottom seismograph sites based on S-wave horizontal-to-vertical spectral ratios: a study at the Sagami Bay area K-NET sites in Japan

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Published in 2017 at "Earth, Planets and Space"

DOI: 10.1186/s40623-017-0615-5

Abstract: We analyzed S-wave horizontal-to-vertical (S-H/V) spectral ratios at six ocean bottom seismograph (OBS) sites of K-NET located in the Sagami Bay area of Japan for nonlinear site responses. The degree of nonlinearity was computed by… read more here.

Keywords: site response; obs sites; spectral ratios; site ... See more keywords