A Brief History of Forestry in Europe PDF Download

Author: Bernhard Eduard Fernow
Publisher:
ISBN:
Category : Forestry
Languages : en
Pages : 460

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Author: Michael A. Ritter
Publisher:
ISBN: 9781410221919
Category : Technology & Engineering
Languages : en
Pages : 500

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Timber's strength, light weight, and energy-absorbing properties furnish features desirable for bridge construction. Timber is capable of supporting short-term overloads without adverse effects. Contrary to popular belief, large wood members provide good fire resistance qualities that meet or exceed those of other materials in severe fire exposures. From an economic standpoint, wood is competitive with other materials on a first-cost basis and shows advantages when life cycle costs are compared. Timber bridges can be constructed in virtually any weather conditions, without detriment to the material. Wood is not damaged by continuous freezing and thawing and resists harmful effects of de-icing agents, which cause deterioration in other bridge materials. Timber bridges do not require special equipment for installation and can normally be constructed without highly skilled labor. They also present a natural and aesthetically pleasing appearance, particularly in natural surroundings. The misconception that wood provides a short service life has plagued timber as a construction material. Although wood is susceptible to decay or insect attack under specific conditions, it is inherently a very durable material when protected from moisture. Many covered bridges built during the 19th century have lasted over 100 years because they were protected from direct exposure to the elements. In modem applications, it is seldom practical or economical to cover bridges; however, the use of wood preservatives has extended the life of wood used in exposed bridge applications. Using modem application techniques and preservative chemicals, wood can now be effectively protected from deterioration for periods of 50 years or longer. In addition, wood treated with preservatives requires little maintenance and no painting. Another misconception about wood as a bridge material is that its use is limited to minor structures of no appreciable size. This belief is probably based on the fact that trees for commercial timber are limited in size and are normally harvested before they reach maximum size. Although tree diameter limits the size of sawn lumber, the advent of glued-laminated timber (glulam) some 40 years ago provided designers with several compensating alternatives. Glulam, which is the most widely used modem timber bridge material, is manufactured by bonding sawn lumber laminations together with waterproof structural adhesives. Thus, glulam members are virtually unlimited in depth, width, and length and can be manufactured in a wide range of shapes. Glulam provides higher design strengths than sawn lumber and provides better utilization of the available timber resource by permitting the manufacture of large wood structural elements from smaller lumber sizes. Technological advances in laminating over the past four decades have further increased the suitability and performance of wood for modern highway bridge applications.

Author: Abhijit V. Banerjee
Publisher: PublicAffairs
ISBN: 1541762878
Category : Business & Economics
Languages : en
Pages : 398

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The winners of the Nobel Prize show how economics, when done right, can help us solve the thorniest social and political problems of our day. Figuring out how to deal with today's critical economic problems is perhaps the great challenge of our time. Much greater than space travel or perhaps even the next revolutionary medical breakthrough, what is at stake is the whole idea of the good life as we have known it. Immigration and inequality, globalization and technological disruption, slowing growth and accelerating climate change--these are sources of great anxiety across the world, from New Delhi and Dakar to Paris and Washington, DC. The resources to address these challenges are there--what we lack are ideas that will help us jump the wall of disagreement and distrust that divides us. If we succeed, history will remember our era with gratitude; if we fail, the potential losses are incalculable. In this revolutionary book, renowned MIT economists Abhijit V. Banerjee and Esther Duflo take on this challenge, building on cutting-edge research in economics explained with lucidity and grace. Original, provocative, and urgent, Good Economics for Hard Times makes a persuasive case for an intelligent interventionism and a society built on compassion and respect. It is an extraordinary achievement, one that shines a light to help us appreciate and understand our precariously balanced world.

Author: Anthony Godfrey
Publisher: U.S. Government Printing Office
ISBN:
Category : Nature
Languages : en
Pages : 688

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"United States Department of Agriculture, Forest Service, Pacific Southwest Region"

Author: Henry Ford
Publisher: Routledge
ISBN: 1351408046
Category : Business & Economics
Languages : en
Pages : 252

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Winner of the 2003 Shingo Prize! Henry Ford is the man who doubled wages, cut the price of a car in half, and produced over 2 million units a year. Time has not diminished the progressiveness of his business philosophy, or his profound influence on worldwide industry. The modern printing of Today and Tomorrow features an introduction by James J.

Author: Ronald D. Eller
Publisher: University Press of Kentucky
ISBN: 0813138639
Category : History
Languages : en
Pages : 492

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This award-winning history examines the politics of progress in America through a close look at industrial development in Appalachia since WWII. Appalachia has played a complex role in the unfolding of American history. Early-twentieth-century critics of modernity saw the region as a remnant of frontier life that should be preserved and protected. However, supporters of material production and technology decried what they saw as a the isolation and backwardness of the region and sought to “uplift” its people through education and industrialization. In Uneven Ground, Ronald D. Eller examines the politics of development in Appalachia while exploring the idea of progress as it has evolved in America. “Passionate, clear, concise, and at times profound,” this volume demonstrates that Appalachia's struggle to overcome poverty, to live in harmony with the land, and to respect the value of community is a truly American story (Chad Berry, author of Southern Migrants, Northern Exiles). Winner of the Appalachian Studies Association’s Weatherford Award and the Southern Political Science Association’s V.O. Key Award

Author: William Stanley Jevons
Publisher:
ISBN:
Category :
Languages : en
Pages : 384

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Author: Gordon Hak
Publisher: UBC Press
ISBN: 0774840048
Category : History
Languages : en
Pages : 274

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The history of British Columbia's economy in the twentieth century is inextricably bound to the development of the forest industry. In this comprehensive study, Gordon Hak approaches the forest industry from the perspectives of workers and employers, examining the two institutions that structured the relationship during the Fordist era: the companies and the unions. He relates daily routines of production and profit-making to broader forces of unionism, business ideology, ecological protest, technological change, and corporate concentration. The struggle of the small-business sector to survive in the face of corporate growth, the history of the industry on the Coast and in the Interior, the transformations in capital-labour relations during the period, government forest policy, and the forest industry's encounter with the emerging environmental movement are all considered in this eloquent analysis.

Author:
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 402

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"Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."

Author: Arie Wallert
Publisher: Getty Publications
ISBN: 0892363223
Category : Art
Languages : en
Pages : 241

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Book Description
Bridging the fields of conservation, art history, and museum curating, this volume contains the principal papers from an international symposium titled "Historical Painting Techniques, Materials, and Studio Practice" at the University of Leiden in Amsterdam, Netherlands, from June 26 to 29, 1995. The symposium—designed for art historians, conservators, conservation scientists, and museum curators worldwide—was organized by the Department of Art History at the University of Leiden and the Art History Department of the Central Research Laboratory for Objects of Art and Science in Amsterdam. Twenty-five contributors representing museums and conservation institutions throughout the world provide recent research on historical painting techniques, including wall painting and polychrome sculpture. Topics cover the latest art historical research and scientific analyses of original techniques and materials, as well as historical sources, such as medieval treatises and descriptions of painting techniques in historical literature. Chapters include the painting methods of Rembrandt and Vermeer, Dutch 17th-century landscape painting, wall paintings in English churches, Chinese paintings on paper and canvas, and Tibetan thangkas. Color plates and black-and-white photographs illustrate works from the Middle Ages to the 20th century.