نتایج جستجو برای: strong motion

تعداد نتایج: 576036  

Background: Respiratory motion causes thoracic movement and reduces targeting accuracy in radiotherapy. Objective: This study proposes an approach to generate a model to track lung tumor motion by controlling dynamic multi-leaf collimators. Material and Methods: All slices which contained tumor were contoured in the 4D-CT images for...

2005
HIROO KANAMORI

We studied strong-motion spectra observed for three Mw 7.8 to 8.0 earthquakes (the 1985 Michoacan, Mexico; 1985 Valparaiso, Chile; and 1983 Akita-Oki, Japan earthquakes). We determined the decay of spectral amplitude with distance from the station, considering different measures of distance from a finite fault. We compared strong-motion spectra (Fourier acceleration spectra) observed for these ...

2005
M. D. TRIFUNAC F. E. UDWADIA

Accelerograms recorded at six stations in the metropolitan Los Angeles area during the Borrego Mountain, 1968, the Lytle Creek, 1970, and the San Fernando, 1971, earthquakes in southern California have been studied. In comparing the ground motions recorded during different earthquakes at each of the six stations and in correlations of these motions recorded at different stations during the same...

Journal: :Terrestrial, Atmospheric and Oceanic Sciences 1999

Journal: :Journal of Japan Association for Earthquake Engineering 2005

Journal: :Terrestrial, Atmospheric and Oceanic Sciences 2012

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