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The present book is the result of diverse courses on diffusion. It is intended to give as complete an overview as possible of diffusion in solid media, while relating the process of diffusion to both their physical bases and their applications. A series of a real situations is covered in this account, from self-diffusion of radiotracers to the more complex cases of mass flow under chemical or thermal gradients or under electric fields, or diffusion in structures of lower dimensionality (surfaces and interfaces). In all these analyses, no category of materials was favored; metals, ionic crystals, oxydes, and semiconductors all had their turn. Only polymers were not specifically touched. One chapter is specifically devoted to techniques for studying diffusion, including methods of numerical simulation, and a last and long chapter gives a number of metallurgical phenomena in which diffusion plays a fundamental role.
Written by an international authority on phase transformation, this text elucidates the principles of phase transformations in solids in general and metals and alloys in particular. The book is intended for advanced level undergraduate students of metallurgy and materials science, first year postgraduate students of metallurgy and materials science, and M.Sc. students of solid-state physics and solid-state chemistry.
The concept of the atom is very close to scientific bedrock, the deepest and most fundamental fact about the nature of reality. This book presents the whole panorama of the atomic hypothesis, and its place in Western civilization, from its origins in early Greek philosophy 2500 years ago to the definitive proof through direct microscopic imaging of since atoms, about ten years ago.
New Religious Movements (NRMs) can involve vast numbers of followers and in many cases are radically changing the way people understand and practice religion and spirituality. Moreover, many are having a profound impact on the form and content of mainstream religion. The Encyclopedia of New Religious Movements provides uniquely global coverage of the phenomenon, with entries on over three-hundred movement from almost every country in the world. Coverage includes movements that derive from the major religions of the world and to neo-traditional movements, movements often overlooked in the study of NRMs. In addition to the coverage of particular movements there are also entries on topics, themes, key thinkers and key ideas, for example the New Age Movement, Neo-Paganism, New Religion and gender, NRMs and cyberspace, NRMs and the law, the Anti-Cult Movement, Swedenborg, Jung, Teilhard de Chardin, Lovelock, Gurdjieff, al-Banna, Qutb. The marked global approach and comprehensiveness of the encyclopedia enable an appreciation of the innovative energy of NRMs, of their extraordinary diversity, and the often surprising ways in which they can propagate geographically. The most ambitions publication of its sort, the Encyclopedia of New Religious Movements is a major addition to the reference literature for students and researchers of the field in religious studies and the social sciences. Entries are cross-referenced with short bibliographies for further reading. There is a full index.
Control of atomic motion with resonant laser light is the most interesting field of research which is rapidly expanding. The book discusses the latest theoretical and experimental achievements in the study of these phenomena. The fundamental questions of the theory of resonant light pressure are given in the book. They are: 1. Optical Stern-Gerlach Effect and Quantization of Atomic Motion in a Light Field; 2. Theory of Light Pressure Force and Atomic Kinetics in a Strong Field; 3. Diffraction and Interference of Atoms; 4. Velocity Bunching Effect, Cooling and Localization of Atoms in Light Field, and 5. Polarization Phenomena and Recoil Effect. The most important experiments are also discussed in this book. While the book may be used to get a primary acquaintance with the subject, specialists will also find the latest theoretical and experimental results and achievements in this field discussed here.