The concentration distribution of the dispers~ed flow was measured by means of the laser light scattering. The different flow patterns revealed the special construction of concentration distributions in relation with the velocity ratio of side flow and axial flow.
According to the Mie scattering theory, the backward light scattering power of air bubble appears as clear enhancement near 180° in the condition that the air bubbles are not relevant to each other. The experimen t was done with the simulative ship wake. The attenuation characteristic of air bubbles′ backward scattered light power was studied with 632.8 nm laser illumin ation in two conditions-slim beam illumination and expanded beam illumination.
Owing to the anisotropic and the biharmonic nature of microwave radar backscatter on spaceborne scatterometer, and to the scatter model function nolinear and the existence of various noise sources in the measurements in addition to the model function, the retrieval wind results consist of as many as four wind directions.
The nonlinear elastic wave inversion of strong scatter imbedded in half space was studied. Moment method was used in the discretization procedure and a numerical approach was presented by employing regularization technique and DBI (Distorted Born Iterative) method.