Toward emulating nuclear reactions using eigenvector continuation

Emulating BLAST using database technology

Sequence alignment is very important for molecular biologists. Blast is a well-known family of heuristic approaches to solve this problem efficiently. Special purpose algorithms and datastructures, however, do not support the data abstraction offered by database technology. In this paper, we show that modern extensible database management systems, like the Monet system, allow performance compar...

Nuclear Reactions

Nuclear reactions and nuclear ̄ssion

1 Cross sections and reaction rates 2 Consider a thin target of thickness dx and number density of targets nt being bombarded by a beam of number density Nb moving at velocity v. Each target nucleus presents a target area 3⁄4 { if one of the bombarding particles passes within the area 3⁄4, interaction (scattering, for example) occurs, otherwise not. Now if the beam covers an area A, the fractio...

Nuclear Structure and Nuclear Reactions

Atomic nuclei are the essence of the visible universe. Formed in the big bang or in cataclysmic astrophysical explosions, atomic nuclei are a crucial and intriguing part of the world. The basic features of atomic nuclei were understood in terms of the nuclear shell model in the 1963 Nobel Prize winning research of Eugene Paul Wigner, Maria Goeppert-Mayer, and J. Hans de Jensen. Since then, exte...

Hydrothermal Optimal Power Flow Using Continuation Method

The problem of optimal economic operation of hydrothermal electric power systems is solved using powerful continuation method. While in conventional approach, fixed generation voltages are used to avoid convergence problems, in the proposed algorithm, they are treated as variables so that better solutions can be obtained. The algorithm is tested for a typical 5-bus and 17-bus New Zealand networ...