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The author wrote a monograph 20 years ago on the construction of spin eigen functions; the monograph was published by Plenum. The aim of that mono graph was to present all aspects connected with the construction of spin eigen functions and its relation to the use of many-electron antisymmetric wavefunc tions. The present book is an introduction to these subjects, with an emphasis on the practical side. After the theoretical treatment, there will be many exam ples and exercises which will illustrate the different methods. The theory of the symmetric group and its representations generated by the different spin eigen functions is an other subject, this is closely related to the quantum chemica...
This book is designed both for introductory courses in computer problem solving, at the freshman and sophomore college level, and for individual self study. An earlier version of the book has been used seven times for teaching large introductory classes at University of California San Diego (UCSD). This preface is intended for the instructor, or for anyone sophisticated enough in contemporary computing practice to be able to advise the prospective student. The amount of material presented has been completed by about 55 percent of all students taking the course, where UCSD schedules 10 weeks of classes in a quarter. We have taught the course using Keller's Personalized System of Instruction (...
For a number of years it has been a General Motors Research Laboratories custom to hold a symposium on a subject which is new and emerging, and to invite the best people in the world in that subject to come together to talk to each other. Initially, I had some difficulty in regarding foundry processes as a new and emerging subject. Copper alloys have been in foundry practice for about six thousand years. Foundrymen working with those alloys have been recognized, as such, for nearly all that time. Iron has a much shorter history, probably only three or four thousand years. So what's new? What is new is that a subject which has always been so complex and so difficult that it could only be a craft skill, with bits and pieces of knowledge and bits and pieces of insight, has begun to yield to new abilities to solve very complex problems. We do this now because we can handle great amounts of data by computational means, using new and more complicated theoretical treatments than we could deal with before. In fact, we have a new technology with which we can attack these terribly difficult problems. Thus, foundry processing is becoming a new subject because new things can be done with it.
This updated, revised and extended edition gives a comprehensive introduction to the understanding and use of the finite element method as applied to structures. The text methodically covers all the important bridges in understanding up to and including the introduction of isoparametric elements.
Electrochromic materials are able to change their optical properties in a persistent and reversible way under the action of a voltage pulse. This book explores electrochromism among the metal oxides, with detailed discussions of materials preparation (primarily by thin film technology), materials characterization by (electro)chemical and physical techniques, optical properties, electrochromic device design, and device performance. The vast quantity of information presented is structured in a systematic manner and the optical data is interpreted within a novel conceptual framework.The publication will serve as a comprehensive foundation and reference work for future studies within the rapidly expanding field of electrochromic materials and devices. These devices are of particular interest for information displays, variable-transmittance (smart) windows, variable-reflectance mirrors and variable-emittance surfaces.
This volume presents background information on the electrochemical behaviour of glass melts and solid glasses. The text lays the foundations for a sound understanding of physicochemical redox and ion transfer processes in solid or liquid glasses and the interpretation of experimental results. Other topics discussed include: control of production processes, the field-driven ion exchange between solutions and glasses or within electrochromic thin-film systems, mechanisms responsible for glass corrosion, the concept of optical basicity, and others. Throughout, the text contains practical examples enabling readers to study the various aspects of electrochemical processes in ion-conducting materials.