The Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity

The Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity PDF Author: John A. Newlin
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 56

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The Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity

The Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity PDF Author: John A. Newlin
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 56

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Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity

Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity PDF Author: J. A. Newlin
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Technical Note

Technical Note PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1068

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Technical Bulletin

Technical Bulletin PDF Author:
Publisher:
ISBN:
Category : Agricultural extension work
Languages : en
Pages : 1332

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Estimating Janka Hardness from Specific Gravity for Tropical and Temperate Species

Estimating Janka Hardness from Specific Gravity for Tropical and Temperate Species PDF Author: Michael Carl Wiemann
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 28

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Technical Notes on Wood Properties and Uses

Technical Notes on Wood Properties and Uses PDF Author: Forest Products Laboratory (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 484

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Journal of Agricultural Research

Journal of Agricultural Research PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 998

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Bulletin of the U.S. Department of Agriculture

Bulletin of the U.S. Department of Agriculture PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1324

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Report

Report PDF Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 870

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Wood-Water Relations

Wood-Water Relations PDF Author: Christen Skaar
Publisher: Springer Science & Business Media
ISBN: 3642736831
Category : Technology & Engineering
Languages : en
Pages : 292

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Book Description
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.