Requiring no advanced knowledge of wave propagation, An Introduction to Metamaterials and Waves in Composites focuses on theoretical aspects of metamaterials, periodic composites, and layered composites. The book gives novices a platform from which they can start exploring the subject in more detail. After introducing concepts related to elasticity, acoustics, and electrodynamics in media, the text presents plane wave solutions to the equations that describe elastic, acoustic, and electromagnetic waves. It examines the plane wave expansion of sources as well as scattering from curved interfaces, specifically spheres and cylinders. The author then covers electrodynamic, acoustic, and elastodynamic metamaterials. He also describes examples of transformations, aspects of acoustic cloaking, and applications of pentamode materials to acoustic cloaking. With a focus on periodic composites, the text uses the Bloch-Floquet theorem to find the effective behavior of composites in the quasistatic limit, presents the quasistatic equations of elastodynamic and electromagnetic waves, and investigates Brillouin zones and band gaps in periodic structures. The final chapter discusses wave propagation in smoothly varying layered media, anisotropic density of a periodic layered medium, and quasistatic homogenization of laminates. This book provides a launch pad for research into elastic and acoustic metamaterials. Many of the ideas presented have yet to be realized experimentally-the book encourages readers to explore these ideas and bring them to technological maturity.

Requiring no advanced knowledge of wave propagation, An Introduction to Metamaterials and Waves in Composites focuses on theoretical aspects of metamaterials, periodic composites, and layered composites. The book gives novices a platform from which they can start exploring the subject in more detail. After introducing concepts related to elasticity, acoustics, and electrodynamics in media, the text presents plane wave solutions to the equations that describe elastic, acoustic, and electromagnetic waves. It examines the plane wave expansion of sources as well as scattering from curved interfaces, specifically spheres and cylinders. The author then covers electrodynamic, acoustic, and elastodynamic metamaterials. He also describes examples of transformations, aspects of acoustic cloaking, and applications of pentamode materials to acoustic cloaking. With a focus on periodic composites, the text uses the Bloch-Floquet theorem to find the effective behavior of composites in the quasistatic limit, presents the quasistatic equations of elastodynamic and electromagnetic waves, and investigates Brillouin zones and band gaps in periodic structures. The final chapter discusses wave propagation in smoothly varying layered media, anisotropic density of a periodic layered medium, and quasistatic homogenization of laminates. This book provides a launch pad for research into elastic and acoustic metamaterials. Many of the ideas presented have yet to be realized experimentally-the book encourages readers to explore these ideas and bring them to technological maturity.

Can consciousness exist independent of body? Is there life after death? Do spirits really exist? Is there something such as reincarnation? Does an inanimate entity also have a spirit? What are the physical attributes of the spirits and the world they inhabit? Can we contact the dead? These are some of the many questions that Biswajit Banerjee explores in this book which vividly describes the multitude of hair raising events that led to the formation of the Bureau for Advanced Paranormal Research and Investigation (BAPRI). This book could be deemed both as fiction and creative non-fiction as it is a good blend of facts and fiction. The protagonist Biswajit Banerjee, named after the author himself, is conducting a research into the unknown. Investigations into life after death happen to be one of the principal components of this research. His research leads him to meet many people who are hugely sensitive to paranormal phenomena and they tell him their experiences of the most unusual kind. Eventually the protagonist also turns sensitive to unknown forces. Then comes the most unexpected twist in his life. Will his sensitivity to the paranormal accentuate his problem or help him brave it? What finally results in the formation of the Bureau? Read this brilliant book by Biswajit Banerjee, with definite autobiographical elements, to find the answers.