Wood Quality and Its Biological Basis PDF Download

Author: John R. Barnett
Publisher: CRC Press
ISBN: 9780849328190
Category : House & Home
Languages : en
Pages : 248

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Book Description
Perennial, wood density, tree growth, wood anatomy, reaction wood.

Author: John Barnett
Publisher: John Wiley & Sons
ISBN: 1405147814
Category : Science
Languages : en
Pages : 240

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Book Description
Wood is the most versatile raw material available to man. It isburned as fuel, shaped into utensils, used as a structuralengineering material, converted into fibres for paper production,and put to newer uses as a source of industrial chemicals. Its quality results largely from the chemical and physicalstructure of the cell walls of its component fibres, which can bemodified in nature as the tree responds to physical environmentalstresses. Internal stresses can accumulate, which are releasedcatastrophically when the tree is felled, often rendering thetimber useless. The quality of timber as an engineering materialalso depends on the structure of the wood and the way in which ithas developed in the living tree. Tree improvement for quality cannot be carried out without anunderstanding of the biological basis underlying wood formation andstructure. This volume brings together the viewpoints of bothbiologists and physical scientists, covering the spectrum from theformation of wood to its structure and properties, and relatingthese properties to industrial use. This is a volume for researchers and professionals in plantphysiology, molecular biology and biochemistry.

Author: Marios Soutsos
Publisher: CRC Press
ISBN: 1351674625
Category : Technology & Engineering
Languages : en
Pages : 1085

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Book Description
This established textbook provides an understanding of materials’ behaviour through knowledge of their chemical and physical structure. It covers the main classes of construction materials: metals, concrete, other ceramics (including bricks and masonry), polymers, fibre composites, bituminous materials, timber, and glass. It provides a clear and comprehensive perspective on the whole range of materials used in modern construction, to form a must-have for civil and structural engineering students, and those on courses such as architecture, surveying and construction. It begins with a Fundamentals section followed by a section on each of the major groups of materials. In this new edition: - The section on fibre composites FRP and FRC has been completely restructured and updated. - Typical questions with answers to any numerical examples are given at the end of each section, as well as an instructor’s manual with further questions and answers. - The links in all parts have also been updated and extended, including links to free reports from The Concrete Centre, as well as other online resources and material suppliers’ websites. - and now with solutions manual and resources for adopting instructors on https://www.crcpress.com/9781498741101

Author: Peter Domone
Publisher: CRC Press
ISBN: 1351988417
Category : Technology & Engineering
Languages : en
Pages : 1116

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Book Description
So far in the twenty-first century, there have been many developments in our understanding of materials’ behaviour and in their technology and use. This new edition has been expanded to cover recent developments such as the use of glass as a structural material. It also now examines the contribution that material selection makes to sustainable construction practice, considering the availability of raw materials, production, recycling and reuse, which all contribute to the life cycle assessment of structures. As well as being brought up-to-date with current usage and performance standards, each section now also contains an extra chapter on recycling. Covers the following materials: metals concrete ceramics (including bricks and masonry) polymers fibre composites bituminous materials timber glass. This new edition maintains our familiar and accessible format, starting with fundamental principles and continuing with a section on each of the major groups of materials. It gives you a clear and comprehensive perspective on the whole range of materials used in modern construction. A must have for Civil and Structural engineering students, and for students of architecture, surveying or construction on courses which require an understanding of materials.

Author: Mark Bacon
Publisher: John Wiley & Sons
ISBN: 140514999X
Category : Science
Languages : en
Pages : 344

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Book Description
This is the first volume to provide comprehensive coverage of the biology of water use efficiency at molecular, cellular, whole plant and community levels. While several works have included the phenomenon of water use efficiency, and others have concentrated on an agronomic framework, this book represents the first detailed treatment with a biological focus. The volume sets out the definitions applicable to water use efficiency, the fundamental physiology and biochemistry governing the efficiency of carbon vs water loss, the environmental regulation of this process and the detailed physiological basis by which the plant exerts control over such efficiency. It is aimed at researchers and professionals in plant physiology, biochemistry, molecular biology, developmental biology and agriculture. It will also inform those involved in formulating research and development policy in this topic around the world.

Author: Lee A. Newsom
Publisher: Cambridge University Press
ISBN: 1107052068
Category : Social Science
Languages : en
Pages : 353

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Book Description
It considers research involving archaeological wood in all forms, ranging from fuelwood to ships' timbers, from sites around the globe.

Author: Barry Gardiner
Publisher: Springer Science & Business Media
ISBN: 3642108148
Category : Nature
Languages : en
Pages : 281

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Book Description
The book is a fundamental reference source on reaction wood for wood scientists and technologists, plant biologists, silviculturists, forest ecologists, and anyone involved in the growing of trees and the processing of wood. It brings together our current understanding of all aspects of reaction wood, and is the first book to discuss both compression wood and tension wood. Trees produce reaction wood to maintain the vertical orientation of their stems and the optimum angle of each branch. They achieve this by laying down fibre cell walls in which differences in physical and chemical structure from those of normal fibres are expressed as differential stresses across the stem or branch. This process, while of obvious value for the survival of the tree, causes serious problems for the utilisation of timber. Timber derived from trees containing significant amounts of reaction wood is subject to dimensional instability on drying, causing twisting, bending and splitting. It is also difficult to work as timber, and for the pulp and paper industry the cost of removing the increased amount of lignin in compression wood is substantial. This has both practical and economic consequences for industry. Understanding the factors controlling reaction wood formation and its effect on wood structure is therefore fundamental to our understanding of the adaptation of trees to their environment and to the sustainable use of wood. The topics covered include: -Morphology, anatomy and ultrastructure of reaction wood -Cell-wall polymers in reaction wood and their biosynthesis -Changes in tree proteomes during reaction wood formation -The biomechanical action and biological functions of reaction wood - Physical and mechanical properties of reaction wood from the scale of cell walls to planks -The detection and characterisation of compression wood -Effects of reaction wood on the performance of wood and wood-based products - Commercial implications of reaction wood and the influence of forest management on its formation

Author: Dennis P. Dykstra
Publisher: DIANE Publishing
ISBN: 1437926169
Category : Technology & Engineering
Languages : en
Pages : 282

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Book Description
Explores the relationships between forest management activities and timber quality. Sessions were organized to explore models and simulation methodologies that contribute to an understanding of tree development over time and the ways that management and harvesting activities can influence the quality of timber products recovered from those trees. Five keynote addresses, 29 plenary presentations, and 16 poster presentations covered the full breadth of forest growth and timber quality issues related to forest management. These proceedings comprise 19 papers based on presentations and posters, plus 28 abstracts for presentations. Also includes abstracts and slides from the presentations prepared by three keynote speakers. Illustrations.

Author: Roger M. Rowell
Publisher: CRC Press
ISBN: 1439853819
Category : Science
Languages : en
Pages : 687

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Book Description
Wood has played a major role throughout human history. Strong and versatile, the earliest humans used wood to make shelters, cook food, construct tools, build boats, and make weapons. Recently, scientists, politicians, and economists have renewed their interest in wood because of its unique properties, aesthetics, availability, abundance, and perha

Author: Denis J. Murphy
Publisher: CRC Press
ISBN: 1000715132
Category : Science
Languages : en
Pages : 426

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Book Description
New research tools have revealed many surprising aspects of the dynamic nature of lipids and their participation in processes such as recognition, intra- and inter-cellular signalling, deterrence and defense against pathogens, membrane trafficking and protein function. This is in addition to new information on the more established roles of plant lipids as structural components of membranes and as long-term storage products. Plant lipids are also increasingly being seen as sources of a new generation of environmentally friendly, biodegradable, and renewable industrial products, including biopolymers and high-grade lubricants. Plant Lipids: Biology, Utilisation and Manipulation provides a broad overview of plant lipid research and its many applications. Linking various disciplines, the editor brings together researchers from major international laboratories to review the history and current state of progress in this quickly evolving field. The text starts by providing a fascinating historical perspective on the study of plant lipids, from its inception as a branch of alchemy in the seventeenth century to the current post-genomic era. It then offers a detailed discussion on the formation, modification and utilization of fatty acids. This is followed by an exploration of the major classes of macromolecular structures formed by plant lipids, including bilayer membranes and storage bodies. From there, the contributors consider other types of macromolecular lipid assemblies in plants, examining proteins and the key plant lipid structure - the cuticle. The final chapters look at diverse classes of plant lipids that are linked to various aspects of signaling. This text provides an excellent resource for researchers and professionals in plant biochemistry, molecular biology, biotechnology and genetics, in both the academic and industrial sectors. It also meets the needs of students looking for a comprehensive introduction to this field, as well as direction for fut