Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 56

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Author: United States. Bureau of Reclamation
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 120

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Author: United States. Bureau of Reclamation. Technical Library, Denver
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 456

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Author: Ferdinand Stenger
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 336

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 58

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ISBN:
Category : Union catalogs
Languages : en
Pages : 710

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Author: A. J. Peterka
Publisher: Createspace Independent Pub
ISBN: 9781508722816
Category : Technology & Engineering
Languages : en
Pages : 240

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Although hundreds of stilling basins and energy­dissipating devices have been designed in conjunction with spillways, outlet works, and canal structures, it is often necessary to make model studies of individual structures to be certain that these will operate as anticipated. The reason for these repetitive tests is that a factor of uncertainty exists regarding the overall performance characteristics of energy dissipators. The many laboratory studies made on individual structures over a period of years have been made by different personnel, for different groups of designers, each structure having different allowable design limitations. Since no two structures were exactly alike, attempts to generalize the assembled data resulted in sketchy and, at times, inconsistent results having only vague connecting links. Extensive library research into the works of others revealed the fact that the necessary correlation factors are nonexistent. To fill the need for up-to-date hydraulic design information on stilling basins and energy dissipators, a research program on this general subject was begun with a study of the hydraulic jump, observing all phases as it occurs in open channel flow. With a broader understanding of this phenomenon it was then possible to proceed to the more practical aspects of stilling basin design. This monograph generalizes the design of stilling basins, energy dissipators of several kinds and associated appurtenances. General design rules are presented so that the necessary dimensions for a particular structure may be easily and quickly determined, and the selected values checked by others without the need for exceptional judgment or extensive previous experience. Proper use of the material in this monograph will eliminate the need for hydraulic model tests on many individual structures, particularly the smaller ones. Designs of structures obtained by following the recommendations presented here will be conservative in that they will provide a desirable factor of safety. However, model studies will still prove beneficial to reduce structure sizes further, to account for nonsymmetrical conditions of approach or getaway, or to evaluate other unusual conditions not described herein.

Author: Sherwin B. Nuland
Publisher: Vintage
ISBN: 0307807894
Category : Biography & Autobiography
Languages : en
Pages : 547

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From the author of How We Die, the extraordinary story of the development of modern medicine, told through the lives of the physician-scientists who paved the way. How does medical science advance? Popular historians would have us believe that a few heroic individuals, possessing superhuman talents, lead an unselfish quest to better the human condition. But as renowned Yale surgeon and medical historian Sherwin B. Nuland shows in this brilliant collection of linked life portraits, the theory bears little resemblance to the truth. Through the centuries, the men and women who have shaped the world of medicine have been not only very human, but also very much the products of their own times and places. Presenting compelling studies of great medical innovators and pioneers, Doctors gives us a fascinating history of modern medicine. Ranging from the legendary Father of Medicine, Hippocrates, to Andreas Vesalius, whose Renaissance masterwork on anatomy offered invaluable new insight into the human body, to Helen Taussig, founder of pediatric cardiology and co-inventor of the original "blue baby" operation, here is a volume filled with the spirit of ideas and the thrill of discovery.

Author: Defense Threat Reduction Agency
Publisher: Militarybookshop.CompanyUK
ISBN:
Category : History
Languages : en
Pages : 476

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This official history was originally printed in very small numbers in 2002. "Defense's Nuclear Agency, 1947-1997" traces the development of the Armed Forces Special Weapons Project (AFSWP), and its descendant government organizations, from its original founding in 1947 to 1997. After the disestablishment of the Manhattan Engineering District (MED) in 1947, AFSWP was formed to provide military training in nuclear weapons' operations. Over the years, its sequential descendant organizations have been the Defense Atomic Support Agency (DASA) from 1959 to 1971, the Defense Nuclear Agency (DNA) from 1971 to 1996, and the Defense Special Weapons Agency (DSWA) from 1996 to 1998. In 1998, DSWA, the On-Site Inspection Agency, the Defense Technology Security Administration, and selected elements of the Office of Secretary of Defense were combined to form the Defense Threat Reduction Agency (DTRA).

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16

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