research and developmentexpenditure (r&d;) in new literature plays an important role in economic growth. investment in r&d;, increases level of knowledge and enhanced knowledge, increase production efficiency and from efficiency channel economic growth improves. many studies have been done on the r&d; not used unit of data for this variable. this is due to a lack of labor and the level of inves...

efficient mode shape extraction of fluid-structure systems is of particular interest in engineering. an efficient modified version of unsymmetric lanczos method is proposed in this paper. the original unsymmetric lanczos method was applied to general form of unsymmetric matrices, while the proposed method is developed particularly for the fluid-structure matrices. the method provides us with si...

Jaron T. Krogel,1 Min Yu,2 Jeongnim Kim,3 and David M. Ceperley1 1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA 2Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Materials Science and Technology Division and Computational Chemistry and Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennesse...