Download or read book Overcoming the Brightness Ceiling for Mechanical Pulps Prepared from Blue stained Lodgepole Pine Chips written by Thomas Qiuxiong Hu and published by . This book was released on 2008 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial brightness of pulps prepared from chip blends containing mountain pine beetle-infested, blue-stained lodgepole pine (LPP) is lower than that of pulps made frfrom green LPP chips. This report presents the results of a Paprican/University of British Columbia project to develop a novel, cost effective approach to brightening mechanical pulps prepared from the blue-stained LPP chips.
Download or read book Sodium Dithionite Rongalite And Thiourea Oxides Chemistry And Application written by Sergei V Makarov and published by World Scientific. This book was released on 2016-08-25 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sodium Dithionite, Rongalite and Thiurea Oxides provides an in depth overview of historical and newly developed fields of application for important sulfur-containing reductants. It begins with an introduction into the structure and general properties of sodium dithionite, sodium hydroxymethanesulfinate (rongalite) and thiourea oxides. Following this there is analysis of their stability in different types of solutions, and reactions with both organic and inorganic compounds. Finally, there is description of the application of the reductants in industry, using examples of the textile, printing and paper industries, as well as in polymerization processes.Despite widespread practical application, the mechanism behind these compounds is not fully understood, due to their unusual structure and complex decomposition within solutions. This comprehensive review presents up-to-date findings to both academics and industrial chemists, aiming to increase knowledge and provide both fundamental and technical data dedicated to these relatively simple chemicals which have wide practical applications.
Download or read book Determining the Relationship Between Wood and Fibre Quality of Mountain Pine Beetle killed Wood and Paper Quality of Mechanical Paper written by Bill Francis and published by . This book was released on 2009 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this paper is to determine the extent to which printing paper quality issues are related to changes in incoming-fibre quality or to changes in processing when using beetle-killed wood.
Download or read book Cost Implications for Thermomechanical Pulping and Brightening of Blue stained Chips written by Thomas Qiuxiong Hu and published by . This book was released on 2007 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lodgepole pine (Pinus contorta Dougl.) forests make up approximately 35% of British Columbia's forested land base and accounty for 25% of the province's total volume harvested. Mountain pine beetle (Dendroctonus ponderosae Hopk.) is currently B. C.'s most devastating forest insect and it has wrought more destruction in mature lodgepole pine forests than any other forest insect. In an attempt to deal with the pine beetle infestation, an accelerated harvesting of pine stands damaged with this insect has been ordered by B. C. Ministry of Forests throughout the north central part of the province. Mature lodgepole pine trees attacked by the pine beetle are afflicted through the introduction of Ophiostoma piliferum, a fungus that causes blue stain in the sapwood. This preliminary study was undertaken to quantify the costs associated with thermechanical and chemithermomechanical pulping and brightening the mechanical pulps produced from blue-stained and sound lodgepole pine chips.--Document.
Download or read book Information Forestry written by and published by . This book was released on 2008-04 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing the Influence of Time since death written by Barbara Dalpke and published by . This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle (MPB) epidemic. It presents the results of pilot plant Kraft and mechanical pulping trials that were conducted to determine the influence of time-since-death (TSD) of (MPB)-killed lodgepole pine on pulping and pulp quality. Samples included trees of red, grey and late grey attack stages as well as unattacked trees; sample sites were established in three different biogeoclimatic subzones in British Columbia in order to account for natural variability. Prior to pulping, samples were tested for wood and fibre properties as well as chip quality. Kraft and thermomechanical (TMP) pulping parameters were monitored, pulp quality was determined, and sheet structure was evaluated by scanning electron microscopy.--Includes text from document.
Download or read book The Mountain Pine Beetle written by Pacific Forestry Centre and published by . This book was released on 2006 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.
Download or read book American Forest Trees written by Henry H. Gibson and published by . This book was released on 1913 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growing Gourmet and Medicinal Mushrooms written by Paul Stamets and published by Ten Speed Press. This book was released on 2011-07-13 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed and comprehensive guide for growing and using gourmet and medicinal mushrooms commercially or at home. “Absolutely the best book in the world on how to grow diverse and delicious mushrooms.”—David Arora, author of Mushrooms Demystified With precise growth parameters for thirty-one mushroom species, this bible of mushroom cultivation includes gardening tips, state-of-the-art production techniques, realistic advice for laboratory and growing room construction, tasty mushroom recipes, and an invaluable troubleshooting guide. More than 500 photographs, illustrations, and charts clearly identify each stage of cultivation, and a twenty-four-page color insert spotlights the intense beauty of various mushroom species. Whether you’re an ecologist, a chef, a forager, a pharmacologist, a commercial grower, or a home gardener—this indispensable handbook will get you started, help your garden succeed, and make your mycological landscapes the envy of the neighborhood.
Download or read book Wood and Tree Fungi written by Olaf Schmidt and published by Springer Science & Business Media. This book was released on 2006-09-19 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date overview of the various wood and tree fungi that damage trees, lumber, and timber. Special focus is given to identification, prevention, and remediation techniques, and the book bridges the gap between research and application. It covers the fundamentals of cytology and morphology. There is a more practical section describing damage by viruses and bacteria on trees. The habitats of wood fungi are described as well as tree care. Important tree pathogens and wood decay fungi are characterized for prevention and identification. The final section focuses on the positive effects of wood-inhabiting microorganisms.
Download or read book The Ecology of Commerce written by Paul Hawken and published by . This book was released on 1995 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paul Hawken believes that the impending ecological catastrophe cannot be prevented by individuals - only big business is powerful and influential enough to reverse the present trend. In this book he sets out to show the need for a new relationship between governments and businesses, believing that their present collusion against the public is undemocratic.
Download or read book Wood Production Wood Technology and Biotechnological Impacts written by Ursula Kües and published by Universitätsverlag Göttingen. This book was released on 2007 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the year 2001, Prof. Dr. Ursula Kües was appointed at the Faculty of Forest Sciences and Forest Ecology of the Georg-August-University Göttingen to the chair Molecular Wood Biotechnology endowed by the Deutsche Bundesstiftung Umwelt (DBU). Her group studies higher fungi in basic and applied research. Research foci are on mushroom development and on fungal enzymes degrading wood and their applications in wood biotechnology. This book has been edited to thank the DBU for all support given to the chair Molecular Wood Biotechnology. Contributions to the book are from scientists from Göttingen recognised in different fields of forestry and wood science. Chapters presented by members of the group Molecular Wood Biotechnology introduces into their areas of research. The book is designed for interested students of wood biology and wood technology but will also address scientists in the field.
Download or read book Planted Forests Contributions to the Quest for Sustainable Societies written by James Reid Boyle and published by Springer Science & Business Media. This book was released on 1999-07-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, international experts describe biological, ecological, economic and social aspects of planted forests. Representative types of planted forests are described and discussed, technical and social aspects are considered, and case studies depict the variety of purposes and uses of planted forests. Authors discuss the nature of planted forests of representative species world-wide, basic biology and ecology of plantations, and economic and social considerations in landscapes where planted forests contribute to potentially sustainable societies. The authors represent temperate and tropical forests, developed and developing nations, and all levels of intensity of planting and managing forest trees. This compilation of views and viewpoints about planted forests provides a fresh, broad outlook on trees planted for myriad purposes. Forest scientists and managers, policy experts, development officials and interested citizens will find information of value and stimuli for thinking about forestsof the future.
Download or read book Pictographs of the North American Indians written by Garrick Mallery and published by . This book was released on 1886 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early Days in the Forest Service written by United States. Forest Service and published by . This book was released on with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kiln Drying of Lumber written by R.B. Keey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, no single book adequately covers a basic understanding of wood book satisfies the need for such a work. It describes drying in practice. This the fundamental basis of kiln-drying technology, to enable forest companies to imFrove their drying operations as high-quality timbers become scarcer and of yesteryear can no longer be tolerated. Adaptive the wasteful practices is no longer good enough. Innovations change based on past experience of the material being dried and the processes require a sound understanding of drying. Newer techniques, such as the use of ultrahigh temperature sea soning and superheated steam under vacuum, require an even greater depth of physical understanding for these methods to be used effectively and economically. book provides a description of modern ideas about wood structure, This moisture movement and stress development, from which models of the drying process are developed to give the kiln operator important information about the course of drying under specified conditions, and thus a means is compared with practice wherever for rational process improvement. Theory possible.
Download or read book Architectural Graphic Standards written by Charles George Ramsey and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
