Precipitation behaviour of wrought Al-6Mg alloys with ternary scandium and quaternary zirconium and titanium has been studied. Hardness measurements and resistivity studies are employed to assess the precipitation behaviour of scandium doped Al-6Mg alloy without or with quaternary additions of zirconium and titanium. Further, the kinetics of precipitations are studied by differential scanning c...

Coherent beam combining of many fiber lasers by the Y-shaped complex resonator method realizes both power scaling and spectral narrowing. The basic characteristics of this Y-shaped coherent array, scalability of power summation, and bandwidth narrowing property are presented. As high as 85% addition efficiency with only a few longitudinal-modes was obtained in an array of eight 10-nm bandwidth ...

This Article is brought to you for free and open access by the Physics at ODU Digital Commons. It has been accepted for inclusion in Physics Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Kupriyanov, D. V.; Sokolov, I. M.; Kulatunga, P.; Sukenik, C. I.; and Havey, M. D., "Coherent Backs...

3 Results 12 3.1 File 290, Block 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.2 File 290, Block 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.3 File 27, Block 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.4 File 218, Block 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.5 File 218, Block 12 . . . . . . . . . . . . . ...

In this paper, we describe the development of an experimental testbed capable of producing controllable ocean-like flows in a laboratory setting. The objective is to develop a testbed to evaluate multi-robot strategies for tracking manifolds and Lagrangian coherent structures (LCS) in the ocean. Recent theoretical results have shown that LCS coincide with minimum energy and minimum time optimal...

Capability of the Proper Orthogonal Decomposition (POD) method in extraction of the coherent structures from a spatio-temporal chaotic field is assessed in this paper. As the chaotic field, an ensemble of 40 snapshots, obtained from Direct Numerical Simulation (DNS) of the Kuramoto-Sivashinsky (KS) equation, has been used. Contrary to the usual methods, where the ergodicity of the field is need...