Proceedings of Symposium on Density, Key to Wood Quality, Held May 4-6, 1965, Madison, Wis PDF Download
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Author: United States. Forest Service
Publisher:
ISBN:
Category : Timber
Languages : en
Pages : 198
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Book Description
Author: United States. Forest Service
Publisher:
ISBN:
Category : Timber
Languages : en
Pages : 198
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Book Description
Author: Miha Humar
Publisher: MDPI
ISBN: 3039288210
Category : Technology & Engineering
Languages : en
Pages : 350
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Book Description
Wood-based materials are CO2-neutral, renewable, and considered to be environmentally friendly. The huge variety of wood species and wood-based composites allows a wide scope of creative and esthetic alternatives to materials with higher environmental impacts during production, use and disposal. Quality of wood is influenced by the genetic and environmental factors. One of the emerging uses of wood are building and construction applications. Modern building and construction practices would not be possible without use of wood or wood-based composites. The use of composites enables using wood of lower quality for the production of materials with engineered properties for specific target applications. Even more, the utilization of such reinforcing particles as carbon nanotubes and nanocellulose enables development of a new generation of composites with even better properties. The positive aspect of decomposability of waste wood can turn into the opposite when wood or wood-based materials are exposed to weathering, moisture oscillations, different discolorations, and degrading organisms. Protective measures are therefore unavoidable for many outdoor applications. Resistance of wood against different aging factors is always a combined effect of toxic or inhibiting ingredients on the one hand, and of structural, anatomical, or chemical ways of excluding moisture on the other.
Author: Rastislav Lagaňa
Publisher: Arbora Publishers
ISBN: 8096886851
Category : Wood
Languages : en
Pages : 234
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Book Description
Author: Ratikanta Maiti,Humberto González Rodríguez,Ch. Aruna Kumari
Publisher: American Academic Press
ISBN: 1631817868
Category : Nature
Languages : en
Pages : 371
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Book Description
Woody plants occupy dominant vegetation in forest ecosystem. They play an important role in reducing carbon load from the atmosphere and store them as biomass and carbon as sources of energy. Forest trees are sources of timbers, various domestic uses, medicinal purposes, forest products, and sources of animal nutrition. At this juncture, there is a great necessity to save forest trees for life security and effective management and maintain an ecobalance to save earth from the clutch of pollution. To fulfill these objectives, a clear understanding of the biology of trees and its applications is an essential prerequisite for effective management and its application. No such book is available to undergraduate and graduate students and teachers. It discusses experimental biology to study the various aspects of tree biology from a practical stand point guide. This deals with general concepts of plant, soil and environments, the vegetation and biodiversity, morpho-anatomical and ecophysiological traits phenological events and plasticity, branching pattern and branching density functioning as solar panel for capture of solar radiation for productivity, diversity of leaves morphological and biochemical traits such as pigments, epicuticular wax, leaf macronutrients necessary for the growth and development and animal nutrition, wood anatomical traits related to timber quality and utility. A special emphasis has been given in the selection of tree species with high ecophysiological traits. The book deals with advances in research and includes our original research results.
Author: Teresa Fidalgo Fonseca
Publisher: BoD – Books on Demand
ISBN: 0854663177
Category : Science
Languages : en
Pages : 126
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Book Description
Conifers have diversified stand structures, silvicultural systems, yields, and products and services. The continuous analysis and modeling of conifer stands improves understanding of stands and forests and allows the improvement of their productivity, benefits, and services while maintaining sustainability. Moreover, detailed knowledge of conifer stands enables the development of alternative management scenarios to cope with disturbances. This book is a collection of reviews and research studies in several fields and with different perspectives on conifer stand management, regeneration, growth, production, genetics, ethnobotany disturbances, and wooden constructions.
Author: Vladimír Kompiš
Publisher: Springer Science & Business Media
ISBN: 1402069758
Category : Technology & Engineering
Languages : en
Pages : 300
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Book Description
This book presents new results in the knowledge and simulations for composite nano-materials. It includes selected, extended papers presented in the thematic ECCOMAS conference on Composites with Micro- and Nano-Structure (CMNS) – Computational Modelling and Experiments. It contains atomistic and continuum numerical methods and experimental validation for composite materials reinforced with particles or fibres, porous materials, homogenization and other important topics.
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: Canada. Dept. of Forestry
Publisher:
ISBN:
Category :
Languages : en
Pages : 1640
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Book Description
Author:
Publisher:
ISBN:
Category : Timber
Languages : en
Pages : 198
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Book Description
Author: Coeli M Hoover
Publisher: Springer Science & Business Media
ISBN: 1402085060
Category : Science
Languages : en
Pages : 242
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Book Description
In the summer of 2003, a workshop was held in Portsmouth, NH, to discuss land measurement techniques for the North American Carbon Program. Over 40 sci- tists representing government agencies, academia and nonprofit research organi- tions located in Canada, the US and Mexico participated. During the course of the workshop a number of topics were discussed, with an emphasis on the following: • The need for an intermediate tier of carbon measurements. This level of study would be more extensive than state-level inventories of the US Forest Service Forest Inventory and Analysis Program, but less detailed than intensive ecos- tem studies sites such as those in Long Term Ecological Research network. This tier would ideally provide a basis to link and scale remote sensing measurements and inventory data, and supply data required to parameterize existing models (see Wofsy and Harriss 2002, Denning et al. 2005). • The design criteria that such a network of sites should meet. The network and s- pling design should be standardized, but flexible enough to be applied across North America. The design also needs to be efficient enough to be implemented without the need for large field crews, yet robust enough to provide useful information. Finally, the spatial scale must permit easy linkage to remotely sensed data. • The key variables that should be measured at each site, and the frequency of measurement.
