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Sensitivity analysis and optimal shape design are key issues in engineering that have been affected by advances in numerical tools currently available. This book, and its supplementary online files, presents basic optimization techniques that can be used to compute the sensitivity of a given design to local change, or to improve its performance by local optimization of these data. The relevance and scope of these techniques have improved dramatically in recent years because of progress in discretization strategies, optimization algorithms, automatic differentiation, software availability,...

The Time Stream.

A living and well-traveled path between wheres and whens. Meet Candi and Ash, the newest travelers on this temporal by-way. A pair of women separated by millennia but whose love is an inevitability. Thrown together in the least likely of times and places and hunted by The Continuum, a cross-time conspiracy of the elite and the sinister deeply frightened of the destiny of the couple they call...The Scissor Sisters.