If the conformal invariance of electromagnetism is broken during inflation, then primordial magnetic fields may be produced. If this symmetry breaking is generated by the coupling between electromagnetism and a scalar field—e.g. the inflaton, curvaton, or Ricci scalar—then these magnetic fields may be correlated with primordial density perturbations, opening a new window to the study of nonGaus...

Recently, many researchers in the field of automatic content-based image retrieval have devoted a remarkable amount of research looking formethods to retrieve the best relevant images to the query image.This paper presents a novel algorithm for increasing the precision in content-based image retrieval based on electromagnetism optimization technique.The electromagnetism optimization is a nature...

Scaled experimentation is an important experimental approach but known to be limited by scale effects, which have the undesirable effect of changing behaviour a system with scale. Such behavioural changes can on occasions so marked as make scaled experiment almost worthless. Until very recently, there has been no universal solution this problem most experiments founded dimensional analysis and ...