Propagation Basics

Propagation Basics
Title Propagation Basics PDF eBook
Author Steven Bradley
Publisher Sterling Publishing Company, Inc.
Pages 134
Release 2002-08
Genre Gardening
ISBN 9780806988511

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Why pay garden center or nursery prices for plants when you can propagate your own for little or no money? The techniques are easy, whether you get cuttings or seedlings from friends and relatives, find them in your garden, or propagate your own as gifts.-- From publisher.

Propagation Handbook

Propagation Handbook
Title Propagation Handbook PDF eBook
Author Geoff Bryant
Publisher Stackpole Books
Pages 128
Release 1995
Genre Gardening
ISBN 9780811730655

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Illustrated guide on how to use professional propagation techniques on a small scale.

Radio Wave Propagation Fundamentals, Second Edition

Radio Wave Propagation Fundamentals, Second Edition
Title Radio Wave Propagation Fundamentals, Second Edition PDF eBook
Author Artem Saakian
Publisher Artech House
Pages 422
Release 2020-12-31
Genre Technology & Engineering
ISBN 1630818453

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This completely updated second edition of an Artech House classic provides a thorough introduction to the basic principles of electromagnetic wave propagation of radio frequencies in real-world conditions, fully updated by including new achievements in theory and technology. It serves as an invaluable daily reference for practitioners in the field and as a complete, organized text on the subject. This comprehensive resource covers a wide range of essential topics, from the classification of radio waves, electromagnetic wave theory, and antennas for RF radio links, to the impact of the earth surface on the propagation of ground waves, atmospheric affects in radio wave propagation, and radio wave reception. The book explores the propagation of the ground radio waves, namely the waves that propagate in vicinity of the earth's surface (e.g., guided by that interface), without involvement of any atmospheric effects. Specifics of the high-frequency (HF) radio propagation due to reflections from ionospheric layers is studied, based on commonly used models of the ionospheric vertical profiles. Scattering of the radio waves of UHF and higher frequency bands from the random variations of the tropospheric refraction index (from tiny air turbulences) are also considered by using the principles of statistical radio-physics. Analysis of propagation conditions on real propagation paths, including analysis of the power budget of the VHF/UHF link to assure its stability (percentage of availability within observation time frame), terrestrial, broadcast, mobile, and satellite RF links are presented. The engineering design of the cellular networks, including LTE 4G, 5G and upcoming higher generations is explored. HF propagation predictions for extremely long-range links design for commercial and military applications are explained. Packed with examples and problems, this book provides a theoretical background for astrophysical, aeronomy and geophysical instrumentation design.

Introduction to RF Propagation

Introduction to RF Propagation
Title Introduction to RF Propagation PDF eBook
Author John S. Seybold
Publisher John Wiley & Sons
Pages 348
Release 2005-10-03
Genre Technology & Engineering
ISBN 0471743682

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An introduction to RF propagation that spans all wireless applications This book provides readers with a solid understanding of the concepts involved in the propagation of electromagnetic waves and of the commonly used modeling techniques. While many books cover RF propagation, most are geared to cellular telephone systems and, therefore, are limited in scope. This title is comprehensive-it treats the growing number of wireless applications that range well beyond the mobile telecommunications industry, including radar and satellite communications. The author's straightforward, clear style makes it easy for readers to gain the necessary background in electromagnetics, communication theory, and probability, so they can advance to propagation models for near-earth, indoor, and earth-space propagation. Critical topics that readers would otherwise have to search a number of resources to find are included: * RF safety chapter provides a concise presentation of FCC recommendations, including application examples, and prepares readers to work with real-world propagating systems * Antenna chapter provides an introduction to a wide variety of antennas and techniques for antenna analysis, including a detailed treatment of antenna polarization and axial ratio; the chapter contains a set of curves that permit readers to estimate polarization loss due to axial ratio mismatch between transmitting and receiving antennas without performing detailed calculations * Atmospheric effects chapter provides curves of typical atmospheric loss, so that expected loss can be determined easily * Rain attenuation chapter features a summary of how to apply the ITU and Crane rain models * Satellite communication chapter provides the details of earth-space propagation analysis including rain attenuation, atmospheric absorption, path length determination and noise temperature determination Examples of widely used models provide all the details and information needed to allow readers to apply the models with confidence. References, provided throughout the book, enable readers to explore particular topics in greater depth. Additionally, an accompanying Wiley ftp site provides supporting MathCad files for select figures in the book. With its emphasis on fundamentals, detailed examples, and comprehensive coverage of models and applications, this is an excellent text for upper-level undergraduate or graduate students, or for the practicing engineer who needs to develop an understanding of propagation phenomena.

Fundamentals of Seismic Wave Propagation

Fundamentals of Seismic Wave Propagation
Title Fundamentals of Seismic Wave Propagation PDF eBook
Author Chris Chapman
Publisher Cambridge University Press
Pages 646
Release 2004-07-29
Genre Science
ISBN 9781139451635

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Fundamentals of Seismic Wave Propagation, published in 2004, presents a comprehensive introduction to the propagation of high-frequency body-waves in elastodynamics. The theory of seismic wave propagation in acoustic, elastic and anisotropic media is developed to allow seismic waves to be modelled in complex, realistic three-dimensional Earth models. This book provides a consistent and thorough development of modelling methods widely used in elastic wave propagation ranging from the whole Earth, through regional and crustal seismology, exploration seismics to borehole seismics, sonics and ultrasonics. Particular emphasis is placed on developing a consistent notation and approach throughout, which highlights similarities and allows more complicated methods and extensions to be developed without difficulty. This book is intended as a text for graduate courses in theoretical seismology, and as a reference for all academic and industrial seismologists using numerical modelling methods. Exercises and suggestions for further reading are included in each chapter.

The Foodscape Revolution

The Foodscape Revolution
Title The Foodscape Revolution PDF eBook
Author Brie Arthur
Publisher St. Lynn's Press
Pages 0
Release 2017
Genre GARDENING
ISBN 9781943366187

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Growing ornamental plants and edible plants together is the newest gardening trend. And Brie Arthur is the #1 expert in North America.

Plant Propagation Concepts and Laboratory Exercises

Plant Propagation Concepts and Laboratory Exercises
Title Plant Propagation Concepts and Laboratory Exercises PDF eBook
Author Caula A. Beyl
Publisher CRC Press
Pages 499
Release 2016-01-06
Genre Science
ISBN 1466503882

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Includes a DVD Containing All Figures and Supplemental Images in PowerPoint This new edition of Plant Propagation Concepts and Laboratory Exercises presents a robust view of modern plant propagation practices such as vegetable grafting and micropropagation. Along with foundation knowledge in anatomy and plant physiology, the book takes a look into the future and how cutting edge research may impact plant propagation practices. The book emphasizes the principles of plant propagation applied in both temperate and tropical environments. In addition to presenting the fundamentals, the book features protocols and practices that students can apply in both laboratory and field experiences. The book shows readers how to choose the best methods for plant propagation including proper media and containers as well as performing techniques such as budding, cutting, layering, grafting, and cloning. It also discusses how to recognize and cope with various propagation challenges. Also included are concept chapters highlighting key information, laboratory exercises, anticipated laboratory results, stimulating questions, and a DVD containing all the figures in the book as well as some supplemental images.