Smallscale internal waves are numerically ray-traced through random 3-D Garrett and Munk (GM) internal wave backgrounds. Past ray-tracing investigations have considered only interactions with background vertical shear Vz = (Uz, Vz). Our numerical simulations indicate a non-negligible role for vertical divergence Wz. The spectral transfer of internalwave energy toward high vertical wavenumber kz...

We present a theory for the shape, size, and nonuniform composition profile of a small prepyramid island in an alloy epitaxial film when surface diffusion is much faster than deposition and bulk diffusion. The predicted composition profile has segregation of the larger misfit component to the island peak, with segregation enhanced by misfit strain and solute strain but retarded by alloy solutio...