Excerpt from Reflector, Vol. 13: Christmas, 1934 December the twenty - fifth. Christmas. Red lights, green lights. Turkey, candy, cider, stuffed stockings, fireplaces, Santa's presents. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

This is the first truly comprehensive and most up-to-date handbook available on modern reflector antennas and feed sources for diversified space and ground applications. There has never been such an all-encompassing reflector handbook in print, and no currently available title offers coverage of such recent research developments. The Handbook consists of three volumes. Volume I provides a unique combination of theoretical underpinnings with design considerations and techniques. The need for knowledge in reflector antennas has grown steadily over the last two decades due to increased use in space and ground applications, as well as their high gain and wide bandwidth capabilities at relatively low cost. This volume brings you to the leading edge of developments in the field related to numerical techniques, classical reflector geometries, adaptive reflector antennas, shaped reflectors, bifocal and bicollimated dual reflectors, advanced reflectors, and reflect arrays. A must-have reference for both practicing engineers as well as academic researchers.

This is the first truly comprehensive and most up-to-date handbook available on modern reflector antennas and feed sources for diversified space and ground applications. There has never been such an all-encompassing reflector handbook in print, and no currently available title offers coverage of such recent research developments. The Handbook consists of three volumes. Volume III focuses on the range of reflector antenna applications, including space, terrestrial, and radar. The intent of this book volume is to provide practical applications and design information on reflector antennas used for several communications systems. This book covers recent developments of reflector antennas used for satellite communications, terrestrial communications, and remote sensing applications. New subjects are introduced for the first time, including satellite antennas, Terahertz antennas, PIM, multipaction, corona, deployable mesh reflector antennas, and mechanical aspects of reflector antennas. In addition, this book contains a separate topic on integrated feed assembly for reflector antennas covering analysis, design, fabrication, and test.

Reflective Authenticity: Rethinking the Project of Modernity is a challenging consideration of what remains of ambitious Enlightenment ideas such as democracy, freedom and universality in the wake of relativist, postmodern thought. Do clashes over gender, race and culture mean that universal notions such as justice or rights no longer apply outside our own communities? Do our actions lose their authenticity if we act on principles that transcend the confines of our particular communities ? Alessandro Ferrara proposes a path out of this impasse via the notion of reflective authenticity. Drawing on Aristotle, Kants concept of reflective judgement and Heideggers theory of reflexive self-grounding, Reflective Authenticity: Rethinking the Project of Modernity takes a fresh look at the state of Critical Theory today and the sustainability of postmodern politics.

Here's the first complete reference available on all of the modern reflector antenna analysis and design techniques. This book demystifies modern reflector antenna analysis by proceeding from the early numerical integration approaches to today's powerful techniques, such as the Jacobi-Bessel and Fourier-Bessel Methods.

Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.

"A tool box overflowing with ideas that will help every staff developer craft a school culture hospitable to adult and student learning." —Roland S. Barth, Author, Lessons Learned "The book speaks to many audiences, including instructional coaches, PLC leaders, action researchers and group leaders, and university professors working with action researchers and PLCs." —Gail Ritchie, Coleader, Teacher Researcher Network Fairfax County Public Schools, VA "A terrific resource for connecting teacher networks and action research to create powerful professional development opportunities. This book is a joy to read." —Ellen Meyers, Senior Vice President Teachers Network Powerful tools for facilitating teachers′ professional development and optimizing school improvement efforts! Professional learning communities (PLCs) and action research are popular and proven frameworks for professional development. While both can greatly improve teaching and learning, few resources have combined the two practices into one coherent approach. The Reflective Educator′s Guide to Professional Development provides educators with strategies, activities, and tools to develop inquiry-oriented PLCs. Nationally known school reform experts Nancy Fichtman Dana and Diane Yendol-Hoppey cover the ten essential elements of a healthy PLC, provide case studies of actual inquiry-based PLCs, and present lessons learned to help good coaches become great coaches. With this step-by-step guide, readers will be able to: Organize, assess, and maintain high-functioning, inquiry-oriented PLCs Facilitate the development of study questions Establish the trust and collective commitment necessary for successful action research Enable PLC members to develop, analyze, and share research results Lead successful renewal and reform efforts By combining two powerful training practices, coaches, workshop leaders, and staff developers can ensure continuous, robust school-based professional development.