A perfectly matched layer (PML) absorbing material composed of a uniaxial anisotropic material is presented for the truncation of finite-difference time-domain (FDTD) lattices. It is shown that the uniaxial PML material formulation is mathematically equivalent to the perfectly matched layer method published by Berenger (see J. Computat. Phys., Oct. 1994). However, unlike Berenger's technique, the uniaxial PML absorbing medium presented in this paper is based on a Maxwellian formulation. Numerical examples demonstrate that the FDTD implementation of the uniaxial PML medium (...) is stable, equal in effectiveness as compared to Berenger's PML medium, while being more computationally efficient. (shrink)

Darwin discusses why different muscles are brought into action under different emotions and how particular animals have adapted for association with man.

A visionary, a mystic, a lover, a leader. Rudolf Laban was all these things and more. This book tells the story of his life, a life bound up with the political, social and cultural upheavals that formed the turbulent backdrop of modern Europe.