This paper deals with the Saint-Venant’s torsion of thin-walled isotropic nonhomogeneous open elliptical cross section whose shear modulus depends on one curvilinear coordinates which define cross-sectional area beam. The approximate solution problem is obtained by variational method. usual simplification assumptions are used to solve uniform bars cross-sections. An example illustrates applicat...

This report describes the analysis of results of a Lincoln Laboratory experiment which consisted of a series of bistatic scatter and radar measurements of the scattering cross section per unit volume of rain and thin turbulent layers. Results of tbe experiment are presented as average and rms values of the ~ of the bistatic scatter cross section as calculated using the radar data to the cross s...