Abstract: A procedure for nonlinear system identification of soils using strong‐motion records obtained in a downhole seismograph array is presented. This study uses, in conducting the identification, the extended Kalman filter, ...

Abstract: A method is presented for evaluating the earthquake‐induced permanent displacements for sliding blocks. Given the distributions of the limiting accelerations and the ground motion parameters, this method will give the ...

Abstract: An equivalent stationary motion model is evaluated for a liquefaction study. This ground motion model transforms a true, nonstationary motion into a segment of a ficticious Gaussian stationary random process. In the ...

Abstract: The mean-value first-order second-moment (MFOSM) method is the main method for estimating the reliability of slopes in practice. It is well recognized that the method occasionally underestimates the probability of failure ...

Abstract: sing satellite observations together with a chemistry?climate model (CCM), the effect of the stratospheric semiannual oscillation (SAO) and quasi-biennial oscillation (QBO) on the equatorial double peak in observed CH4 and ...