Transport Processes in Wood
Transport Processes in Wood

Author: J.F. Siau

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 256

ISBN-13: 3642692133

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This book has a similar subject content to the author's previous Flow in Wood but with substantial updating due to the abundance of research in the wood science field since 1971. Several different concepts have been introduced, particularly in regard to wood-moisture relation ships. The role of water potential in the equilibria between wood and its humid and moist environments is considered. Two theories are introduced to explain the nonisothermal transport of bound water in the steady and unsteady states. As in the former text, the wood-. structure relationship is emphasized . . The author is especially grateful to Dr. C. Skaar for his careful and critical review of much of the manuscript and for the productive dis cussions of many of the concepts. Dr. T. E. Timell, the series editor, rendered major assistance in the preparation of Chap. 2 and in his editing of the manuscript. The author wishes to thank Dr. W. A. Cote, Mr. A. C. Day, and Mr. J. J. McKeon for providing electron micro graphs, Mr. G. A. Snyder for his photography of much of the art work, Dr. C. H. de Zeeuw for his advice in the field of wood anatomy, and Ms. Mary M. Siau for her careful rendition of the art work. Apprecia tion is extended to Miss Judy A. Barton and Mrs. Stephanie V. Micale for their work in typing and checking the manuscript. Mr. J. A.

Wood-Water Relations
Wood-Water Relations

Author: Christen Skaar

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 292

ISBN-13: 3642736831

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Wood is formed in an essentially water-saturated environment in the living tree, and the cell wall remains in this state until the water flow from the roots is interrupted, such as by felling the tree. The wood then begins to lose most of its moisture by drying, resulting in changes in most of its physical properties. These changes, and their relationship to the environment to which the wood is subsequently ex posed, are the subject of this book. The text consists of six chapters. The first chapter discusses cer tain empirical relationships between wood and water, methods of measuring wood moisture content, factors which affect its equilib rium moisture content, and the effect of moisture content on wood strength. The second chapter treats the thermodynamics of moisture sorption by wood, inc1uding enthalpy, entropy, and free energy changes. The third chapter discusses some of the theories which have been proposed to explain the sorption isotherms for hygroscopic ma terials such as wood. Chapter 4 considers hygroexpansion or the shrinking and swelling of wood associated with moisture change. Chapter 5 is concerned with how moisture moves through the cell wall of wood in response to both moisture and temperature gradients. The sixth and final chapter discusses the theoretical and practical aspects of the electrical resistance and dielectric properties of wood, in c1uding the principles involved in their application in electrical moisture meters.

The Improv Handbook for Modern Quilters
The Improv Handbook for Modern Quilters

Author: Sherri Lynn Wood

Publisher: Abrams

Published: 2015-04-28

Total Pages: 561

ISBN-13: 1683351886

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An exciting new approach for beginning to advanced quilters who want to improvise on their own, with a friend, or with a community of fellow makers. Forget step-by-step instructions and copycat designs. In The Improv Handbook for Modern Quilters, Sherri Lynn Wood presents a flexible approach to quilting that breaks free of old paradigms. Instead of traditional instructions, she presents 10 frameworks (or scores) that create a guiding, but not limiting, structure. To help quilters gain confidence, Wood also offers detailed lessons for stitching techniques key to improvisation, design and spontaneity exercises, and lessons on color. Every quilt made from one of Wood’s scores will have common threads, but each one will look different because it reflects the maker’s unique interpretation. Featured throughout the book are Wood’s own quilts and a gallery of contributor works chosen from among the hundreds submitted when she invited volunteers to test her scores during the making of this groundbreaking work. “Wood offers a series of techniques, guidelines and lessons on color choice for those ready to explore improvisational quilting. Her book is loaded with full-color photos and examples to inspire.” —Dallas Morning News “Despite how it may “seam,” quilting isn’t all about rules! Quilting can be an exhilarating way to channel your creativity and express yourself. This book is focused more on exploration than explanation—a perfect mindset for beginners!” —Powell’s Books Staff Pick

Drying Hardwood Lumber
Drying Hardwood Lumber

Author: Joseph Denig

Publisher:

Published: 2000

Total Pages: 148

ISBN-13:

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Drying Hardwood Lumber focuses on common methods for drying lumber of different thickness, with minimal drying defects, for high quality applications. This manual also includes predrying treatments that, when part of an overall quality-oriented drying system, reduce defects and improve drying quality, especially of oak lumber. Special attention is given to drying white wood, such as hard maple and ash, without sticker shadow or other discoloration. Several special drying methods, such as solar drying, are described, and proper techniques for storing dried lumber are discussed. Suggestions are provided for ways to economize on drying costs by reducing drying time and energy demands when feasible. Each chapter is accompanied by a list of references. Some references are cited in the chapter; others are listed as additional sources of information.

Bulletin
Bulletin

Author: New Hampshire Agricultural Experiment Station

Publisher:

Published: 1894

Total Pages: 386

ISBN-13:

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