Curved shapes have always sparked architects' fascination for evoking nature's beauty, fluidity, dynamism, and complexity. To replicate these shapes, however, is no easy task. From their two- or three ...

The Geographical Journal has been published since 1831, and was the Society's journal of report until the relaunch in 2000. It has the highest circulation of any British academic journal in its field ...

This is a preview. Log in through your library . Abstract In this paper we are concerned with the problem of finding the global minimum of a concave function over a closed, convex, possibly unbounded ...

A plano-convex lens is compose of a plane and convex surfaces, has a positive focal length.It is used for the changing between point light source and parallel beam.It is mean when the light through ...