000 02238nam a22002297a 4500
999 _c2295
_d2295
003 OSt
005 20190629135436.0
008 190629b ||||| |||| 00| 0 eng d
020 _a978-3-642-73685-8
028 _bAllied Informatics, Jaipur
_c6283
_d26/06/2019
_q2019-20
040 _aBSDU
_bEnglish
_cBSDU
082 _a620.12
_bSKA
100 _aSkaar, C
245 _aWood-Water Relations
260 _aBerlin
_bSpringer-Verlag
_cc1988
300 _a283
500 _aWood 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.
504 _aContents Wood Moisture and the Environment Moisture Sorption Thermodynamics Moisture Movement in the Wood Cell Wall Theories of Water Sorption by Wood Hygroexpansion in Wood Properties of Wood
650 _aCarpentry
650 _aWood
942 _2ddc
_cBK