Plant propagation

Growing your own plants from seeds or cuttings is much easier than you think.  The plant propagation techniques that you’ll learn in this book are simple to do and easy to learn, and they work incredibly well!  If you already have a green thumb you’ll love this book.  If you don’t have a green thumb, be prepared, you are likely to amaze yourself.


Finding a beautiful plant and being able to reproduce that plant as many times as you like is a thrilling experience and it can be quite addicting.  Since gardening is very therapeutic, that’s a good thing. 


Learning how to propagate your own plants can result in a great deal of savings and/or earnings.


Everyone in my family, from nieces and nephews to grandmas and grandpas, spent some time dabbling in our nursery.  Our two sons learned work ethics and the value of a dollar.  They also learned to appreciate, and at times be awed by, nature.


It took me 35 years of crawling around in the dirt on my hands and knees to learn what I share with you in this book.  Reflecting on those years I cannot think of a more rewarding way to spend the better part of my life.


It is my sincere hope that you share what you learn in this book with the children in your life.  Kids love to garden, and there is no better way to spend quality time with a child than teaching them how to garden.  Plants are the heartbeat of the earth.  If we can teach kids how to propagate plants, care for them, and admire and respect the plants of this planet, you and I will leave this earth in very capable hands.


Jump in, get dirty!  Get lost in the magic of plant propagation. 
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.
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