The transformation of a weakly nonlinear interfacial solitary wave in an ideal twolayer flow over a step is studied. In the vicinity of the step the wave transformation is described in the framework of the linear theory of long interfacial waves, and the coefficients of wave reflection and transmission are calculated. A strong transformation arises for propagation into shallower water, but a we...

in this paper, pile behavior embedded in layered soil deposits subjected to seismic loadings is analyzed using a nonlinear fiber element for simulation of soil – pile interactions. in the created model, both pile and surrounding soil are modeled using fiber elements in a practical beam on nonlinear winkler foundation (bnwf) concept. herein, the features of drain–3dx finite element software are ...

The effect of ionizing radiation on the nonlinear optical properties materials needs to be considered for applications that employ high-power laser pulses in extreme environments. Heraeus Infrasil302 quartz glass was irradiated by gamma rays, and its absorption measured using open-aperture Z-scan technique with nanosecond pulses. Irradiation results a negative coefficient whose magnitude increa...

Accelerated charges emit electromagnetic radiation and the consequent energy-momentum loss alters their trajectory. This phenomenon is known as reaction Landau-Lifshitz (LL) equation classical of motion electron, which takes into account radiation-reaction effects in electron By using analytical solution LL an arbitrary plane wave, we compute expression emission spectrum via nonlinear Thomson s...