SO(3) and SO(2) decompositions of numerical channel flow turbulence are performed. The decompositions are used to probe, characterize, and quantify anisotropic structures in the flow. Close to the wall the anisotropic modes are dominant and reveal the flow structures. The SO(3) decomposition does not converge for large scales as expected. However, in the shear buffer layer it also does not conv...

This article proposes offline language-free writer identification based on speeded-up robust features (SURF), goes through training, enrollment, and identification stages. In all stages, an isotropic Box filter is first used to segment the handwritten text image into word regions (WRs). Then, the SURF descriptors (SUDs) of word region and the corresponding scales and orientations (SOs) are extr...

In this work, for the first time, studies of aqueous solutions Na 2 SO 4 and K were carried out based on determination parameters radiothermal radiation in millimeter (mm) region spectrum. The developed method is static dielectric constant - absorption coefficient at a frequency 61.2 GHz. Experimental data have been obtained to determine value coefficients substances wide range concentrations. ...