Mr. H. E. Powell

George H . McCracken , Jr and Keith R . Powell

Study objective. To develop guidelines for the care of infants and children from birth to 36 months of age with fever without source. Participants and setting. An expert panel of senior academic faculty with expertise in pediatrics and infectious diseases or emergency medicine. Design and intervention. A comprehensive literature search was used to identify all publications pertinent to the mana...

Edwin Powell Hubble

A multivariate Powell-Sabin interpolant

We consider the problem of constructing a C1 piecewise quadratic interpolant, Q, to positional and gradient data defined at the vertices of a tessellation of n-simplices in IR. The key to the interpolation scheme is to appropriately subdivide each simplex to ensure that certain necessary geometric constraints are satisfied by the subdivision points. We establish these constraints using the Bern...

Convergence Properties of Beale - Powell

The Beale-Powell restart algorithm is highly useful for large-scale unconstrained optimization. In this paper, we use an example to show that the algorithm may fail to converge. The global convergence of a slightly modiied algorithm is proved.

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