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Author: Jamie Bastedo
Publisher: Red Deer, Alta. : Red Deer Press
ISBN: 9780889951914
Category : Science
Languages : en
Pages : 0
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Book Description
The Canadian Shield is a distinct ecological region that forms the evergreen, granite-studded crown stretching across two-thirds of North America. In size, it approximates western Europe with one percent the number of people. A satellite view of the region on a winter's night shows tiny, widely scattered blips of light-islands of human settlement adrift in a sea of subarctic wilderness. In age, the shield's primeval bedrock dates to the beginning of earthly time. Shield Country unfolds a fascinating story of unrivaled Precambrian geology, of wild rivers and millions of pristine lakes, of an ecological junction where subarctic and arctic climates, plants, birds, and mammals weave a richly textured wilderness fabric.
Author: Jamie Bastedo
Publisher: Red Deer, Alta. : Red Deer Press
ISBN: 9780889951914
Category : Science
Languages : en
Pages : 0
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Book Description
The Canadian Shield is a distinct ecological region that forms the evergreen, granite-studded crown stretching across two-thirds of North America. In size, it approximates western Europe with one percent the number of people. A satellite view of the region on a winter's night shows tiny, widely scattered blips of light-islands of human settlement adrift in a sea of subarctic wilderness. In age, the shield's primeval bedrock dates to the beginning of earthly time. Shield Country unfolds a fascinating story of unrivaled Precambrian geology, of wild rivers and millions of pristine lakes, of an ecological junction where subarctic and arctic climates, plants, birds, and mammals weave a richly textured wilderness fabric.
Author: Rachel L. Wellhausen
Publisher: Cambridge University Press
ISBN: 1316124037
Category : Business & Economics
Languages : en
Pages : 321
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Book Description
There is extraordinary variation in how governments treat multinational corporations in emerging economies; in fact, governments around the world have nationalized or eaten away at the value of foreign-owned property in violation of international treaties. This even occurs in poor countries, where governments are expected to, at a minimum, respect the contracts they make with foreign firms lest foreign capital flee. In The Shield of Nationality, Rachel Wellhausen introduces foreign-firm nationality as a key determinant of firms' responses to government breaches of contract. Firms of the same nationality are likely to see a compatriot's broken contract as a forewarning of their own problems, leading them to take flight or fight. In contrast, firms of other nationalities are likely to meet the broken contract with apparent indifference. Evidence includes quantitative analysis and case studies that draw on field research in Ukraine, Moldova, and Romania.
Author: Kui Chen
Publisher: Woodhead Publishing
ISBN: 0128201282
Category : Architecture
Languages : en
Pages : 590
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Book Description
Shield Construction Techniques in Tunnelling presents the latest on this fast, environmentally-friendly and relatively safe construction technique, reflecting on its technical risks and challenges as seen in China. Sections introduce the type of shields, the history of the technique, shielding principles, selection, management, the latest techniques in operation, consider engineering cases, discuss construction in gravel, soft-soil, composite, and rock strata, and present video clips of construction that are accessible through QR codes embedded in the text. The book combines theory and practical experience, giving the reader unique insights into shield equipment and construction techniques. The shield tunneling technique is being used very widely, particularly in China, which is building urban-rail transit systems at an unparalleled scale and speed. The use of tunneling-shields provides a fast, relatively-safe, and ecologically-friendly method for the construction of tunnels. However, a number of incidents have shown the risks involved in tunnelling through geologically complex areas. Gives the principles and practice of shield construction techniques, including shield selection and operation Demonstrates the latest technologies in shield construction that can be applied in practice Reflects on the technical risks and challenges of shield construction, based on extensive use of the technique for tunnel construction in China Discusses challenges in construction in gravel, soft-soil, composite and rock strata Provides engineers with applicable insights into shield equipment and construction techniques
Author: Jian Chen
Publisher: Springer Nature
ISBN: 9811641072
Category : Science
Languages : en
Pages : 327
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Book Description
This book proposes the tool change methods for the excessive tool wear in the construction rules of shield tunnel construction in China. From the perspective of shield tunneling, atmospheric pressure tool change, pressure opening and tool change, and other special techniques, the tool change technologies are proposed. It highlights a number of tool-changing techniques and research and development work, including pressure-changing tools, tool-changing tools in the tool-cylinder arm, and cutter-tooth cutter inter-change since the beginning of the construction of the Nanjing Yangtze River Tunnel.
Author:
Publisher:
ISBN:
Category : Northumberland (England)
Languages : en
Pages : 612
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Book Description
Author: Jian Chen
Publisher: Springer Nature
ISBN: 981165896X
Category : Science
Languages : en
Pages : 308
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Book Description
This book systematically introduces the new technology used in the construction of underwater large slurry shields under complex conditions. The basic principles, scope of application, construction technology and technical points of the key technologies such as the origin and arrival of the shield, crossing the shallow soil in the middle of the river, crossing the guard, and changing the knife and opening the knife are clarified.
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ISBN:
Category : Persian Gulf War, 1991
Languages : en
Pages : 128
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Book Description
Author: Jamie Bastedo
Publisher: Calgary : Arctic Institute of North America of the University of Calgary
ISBN:
Category : Nature
Languages : en
Pages : 320
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Book Description
Author:
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Category : Country life
Languages : en
Pages : 834
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Book Description
Author: DIANE Publishing Company
Publisher: DIANE Publishing
ISBN: 9780788111495
Category :
Languages : en
Pages : 66
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Book Description
A study of the Blue Cross & Blue Shield plans to: (1) determine the extent of financial weakness among the Blue plans; (2) identify factors that contribute to plans' weak financial conditions; & (3) determine the measures taken by the plans, the Blue Cross & Blue Shield Association (BC & BSA), & states to address plan weaknesses. Also describes the oversight & other roles played by the BC & BSA & discusses the implications of health care reform on Blues plans. Charts & tables.
