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Wood-Water Relations

Wood-Water Relations
Author: Christen Skaar
Publisher: Springer Science & Business Media
Total Pages: 292
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 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.


Transport Processes in Wood

Transport Processes in Wood
Author: J.F. Siau
Publisher: Springer Science & Business Media
Total Pages: 256
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 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.


Electric Moisture Meters for Wood

Electric Moisture Meters for Wood
Author: William Lanpheer James
Publisher:
Total Pages: 36
Release: 1963
Genre: Moisture
ISBN:

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Strength-moisture Relations for Wood

Strength-moisture Relations for Wood
Author: Thomas Randall Carson Wilson
Publisher:
Total Pages: 96
Release: 1932
Genre: Agriculture
ISBN:

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Wood-water Relationships

Wood-water Relationships
Author: Wilfred W. Barkas
Publisher:
Total Pages:
Release: 1936
Genre: Wood
ISBN:

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The Chemistry Of Solid Wood

The Chemistry Of Solid Wood
Author: Rowell
Publisher:
Total Pages: 626
Release: 1986-01-01
Genre:
ISBN: 9788170890409

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This 15-chapter book is divided into four sections that discuss wood's structure and basic chemistry, its properties and reactivity, and its surface and degradation chemistry. The very basis of how wood is formed and the structure it assumes during this growth are given in the first section. Various wood science terms are defined and discussed thoroughly to give a clear and adequate foundation for the rest of the book. Wood water relationship important in almost any wood applications- are also discussed in this section. The subsequent three sections discuss relations and chemistry important for the beginning wood chemist to understand. These topics include wood's cell wall components, strength, interaction with preservatives, and adhesion. Wood polymer materials, wood surface activation, weathering and protection, and pyrolysis and fire retardancy are topics also embraced.


Cellulose-water Relations

Cellulose-water Relations
Author: Mary Lockett Rollins
Publisher:
Total Pages: 64
Release: 1949
Genre: Cellulose
ISBN:

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Principles of Soil and Plant Water Relations

Principles of Soil and Plant Water Relations
Author: M.B. Kirkham
Publisher: Academic Press
Total Pages: 599
Release: 2014-04-21
Genre: Science
ISBN: 0124200788

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Principles of Soil and Plant Water Relations, 2e describes the principles of water relations within soils, followed by the uptake of water and its subsequent movement throughout and from the plant body. This is presented as a progressive series of physical and biological interrelations, even though each topic is treated in detail on its own. The book also describes equipment used to measure water in the soil-plant-atmosphere system. At the end of each chapter is a biography of a scientist whose principles are discussed in the chapter. In addition to new information on the concept of celestial time, this new edition also includes new chapters on methods to determine sap flow in plants dual-probe heat-pulse technique to monitor water in the root zone. Provides the necessary understanding to address advancing problems in water availability for meeting ecological requirements at local, regional and global scales Covers plant anatomy: an essential component to understanding soil and plant water relations


Physiology of Woody Plants

Physiology of Woody Plants
Author: Stephen G. Pallardy
Publisher: Academic Press
Total Pages: 469
Release: 2010-07-20
Genre: Science
ISBN: 0080568718

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Woody plants such as trees have a significant economic and climatic influence on global economies and ecologies. This completely revised classic book is an up-to-date synthesis of the intensive research devoted to woody plants published in the second edition, with additional important aspects from the authors' previous book, Growth Control in Woody Plants. Intended primarily as a reference for researchers, the interdisciplinary nature of the book makes it useful to a broad range of scientists and researchers from agroforesters, agronomists, and arborists to plant pathologists and soil scientists. This third edition provides crutial updates to many chapters, including: responses of plants to elevated CO2; the process and regulation of cambial growth; photoinhibition and photoprotection of photosynthesis; nitrogen metabolism and internal recycling, and more. Revised chapters focus on emerging discoveries of the patterns and processes of woody plant physiology. * The only book to provide recommendations for the use of specific management practices and experimental procedures and equipment*Updated coverage of nearly all topics of interest to woody plant physiologists* Extensive revisions of chapters relating to key processes in growth, photosynthesis, and water relations* More than 500 new references * Examples of molecular-level evidence incorporated in discussion of the role of expansion proteins in plant growth; mechanism of ATP production by coupling factor in photosynthesis; the role of cellulose synthase in cell wall construction; structure-function relationships for aquaporin proteins


Water in Wood

Water in Wood
Author: Christen Skaar
Publisher:
Total Pages: 218
Release: 1989
Genre: Wood
ISBN:

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