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Spiral Grain
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Book Synopsis Spiral Grain and Wave Phenomena in Wood Formation by : John M. Harris
Download or read book Spiral Grain and Wave Phenomena in Wood Formation written by John M. Harris and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely recognized that spiral grain in trees severely reduces the value of sawn timber through warping and loss of strength, and that it also causes problems for other wood uses as diverse as transmission poles or plywood. Yet, paradoxically, there are highly valued grain patterns including wavy and interlocked grain, whose origins in the cambium invite direct comparison with those of spiral grain, so that many authorities believe them to be related phenomena. In recent years this concept has prompted extensive research into the anatomy, genetics, and physiology of all such grain patterns in wood. As a result it has become apparent that tree cambia provide excellent systems through which to study the origins of stem polarity and the complex processes of morphogenetic control in plants. Beside these and other pressing topics for research, the book examines methods of measuring grain deviations, and considers their influence on wood properties, on the economics of timber production, and on wood manufacturing.
Book Synopsis Primary Wood Processing by : John C.F. Walker
Download or read book Primary Wood Processing written by John C.F. Walker and published by Springer Science & Business Media. This book was released on 2006-09-13 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is primarily a general text covering the whole sweep of the forest industries. The over-riding emphasis is on a clear, simple interpretation of the underlying science, demonstrating how such principles apply to processing operations. The book considers the broad question "what is wood?" by looking at the biology, chemistry and physics of wood structure. Wood quality is examined, and explanations are offered on how and why wood quality varies and the implications for processing. Finally, various "industrial processes" are reviewed and interpreted. All chapters have been written by specialists, but the presentation targets a generalist audience.
Author :United States. Munitions Board. Aircraft Committee. Subcommittee on Air Force-Navy-Civil Aircraft Design Criteria Publisher : ISBN 13 : Total Pages :384 pages Book Rating :4.:/5 (28 download)
Book Synopsis ANC Bulletin by : United States. Munitions Board. Aircraft Committee. Subcommittee on Air Force-Navy-Civil Aircraft Design Criteria
Download or read book ANC Bulletin written by United States. Munitions Board. Aircraft Committee. Subcommittee on Air Force-Navy-Civil Aircraft Design Criteria and published by . This book was released on 1944 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wood Aircraft Inspection and Fabrication by : Forest Products Laboratory (U.S.)
Download or read book Wood Aircraft Inspection and Fabrication written by Forest Products Laboratory (U.S.) and published by . This book was released on 1944 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetics of Wood Production by : Bruce J. Zobel
Download or read book Genetics of Wood Production written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past years, a great deal has been learned about variation in wood prop erties. Genetic control is a major source of variation in most wood properties. Wood is controlled genetically both directly in the developmental or internal pro cesses of wood formation and indirectly by the control of tree form and growth patterns. Emphasis in this book will be on the internal control of wood production by genetics although there will be two chapters dealing with the indirect genetic control of wood, which was covered in detail in the previous book by Zobel and van Buijtenen (1989). The literature on the genetics of wood is very variable, SO'lle quite superficial, on which little reliance can be placed, and some from well-designed and correctly executed research. When suitable, near the end of each chapter, there will be a summary with the authors' interpretation of the most important information in the chapter. The literature on the genetics of wood can be quite controversial. This is to be expected, since both the environment and its interaction with the genotype of the tree can have a major effect on wood properties, especially when trees of similar genotypes are grown under widely divergent conditions. Adding to the confusion, studies frequently have been designed and analyzed quite differently, resulting in conflicting assessments of results.
Book Synopsis Asymmetry in Plants by : Bir Bahadur
Download or read book Asymmetry in Plants written by Bir Bahadur and published by CRC Press. This book was released on 2019-03-25 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants exhibit forms of asymmetry analogous to "handedness" in bilaterally symmetrical animals. This book explores the evolutionary significance and development of asymmetry. Examples of genetic control include the direction of tendril or stem coiling of many climbing plants; the so-called spiral phyllotaxy and floral taxy; and contorted petal arrangement is another kind of left- right symmetry in plants; the direction of contortion is fixed in some but not in other plants. The book will underscore tha all phenomena related to handedness start during embryogenesis itself, with the occurrence of embryo rotation. Key selling features: First consolidated book on Plant Handedness Relates handedness, asymmetry and chirality to the evolution of different organizational levels in plant biology Emphasizes handedness as a vital governing force in plant functional evolution Provides a new perspective, hitherto ignored, into plant developemtn and evolution Describes how an age-old phenomenon can give scope for investigation from a very modern interdisciplinary approach
Book Synopsis Training Manual [2000-]. by : United States. War Department
Download or read book Training Manual [2000-]. written by United States. War Department and published by . This book was released on 1933 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis War Department Technical Manual by :
Download or read book War Department Technical Manual written by and published by . This book was released on 1940 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report of Section 41 (Forest Products) Activities in Connection with the XV IUFRO by :
Download or read book Report of Section 41 (Forest Products) Activities in Connection with the XV IUFRO written by and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wood: a Manual for Its Use as a Shipbuilding Material by : United States. Navy Department. Bureau of Ships
Download or read book Wood: a Manual for Its Use as a Shipbuilding Material written by United States. Navy Department. Bureau of Ships and published by . This book was released on 1957 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aircraft Woodwork by : United States. War Department
Download or read book Aircraft Woodwork written by United States. War Department and published by . This book was released on 1942 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ANC Bulletin 19. Wood Aircraft Inspection and Fabrication by : United States. Munitions Board
Download or read book ANC Bulletin 19. Wood Aircraft Inspection and Fabrication written by United States. Munitions Board and published by . This book was released on 1951 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Juvenile Wood in Forest Trees by : Bruce J. Zobel
Download or read book Juvenile Wood in Forest Trees written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trend in forestry is toward shorter rotations and more complete utiliza tion of trees. The reasons are: (1) financial pressures to obtain rapid returns on the forestry investment made possible by an earlier harvest; (2) enforced harvest of young plantations to maintain a continuing supply of cellulose for mills where wood shortages are experienced; (3) thinning young plantations, both because they were planted too densely initially and because thinning is done where long rotation quality trees are the forestry goal; (4) more intensive utilization is being done using tops and small diameter trees; and (5) there is interest in using young (juvenile) wood for special products because of its unique characteristics and the development of new technologies. The largest present-day source of conifer juvenile wood is from thinnings of plantations where millions of hectares of pine were planted too densely. Because of the better growth rate resulting from improved silviculture and good genetic stock, plantations will need to be thinned heavily. As a result of this trend, young wood makes up an increasingly larger proportion of the total conifer wood supply each year. Large amounts of juvenile wood from hard woods are also currently available, especially in the tropics and subtropics, because of the fast growth rate of the species used, which results in shorter rotations and ess~ntially all juvenile wood.
Book Synopsis Computer Analysis of Images and Patterns by : Walter Kropatsch
Download or read book Computer Analysis of Images and Patterns written by Walter Kropatsch and published by Springer. This book was released on 2007-08-18 with total page 1025 pages. Available in PDF, EPUB and Kindle. Book excerpt: The refereed proceedings of the 12th International Conference on Computer Analysis of Images and Patterns are presented in this volume. The papers cover motion detection and tracking, medical imaging, biometrics, color, curves and surfaces beyond two dimensions, reading characters, words and lines, image segmentation, shape, image registration and matching, signal decomposition and invariants, and features and classification.
Book Synopsis U.S. Forest Service Research Paper INT by :
Download or read book U.S. Forest Service Research Paper INT written by and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Analysis and Design of Airplanes by :
Download or read book Structural Analysis and Design of Airplanes written by and published by Watchmaker Publishing. This book was released on 2005-02 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis STRUCTUAL ANALYSIS AND DESIGN OF AIRPLANES by :
Download or read book STRUCTUAL ANALYSIS AND DESIGN OF AIRPLANES written by and published by . This book was released on 1920 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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