Design of Small Dams PDF Download

Author: United States. Bureau of Reclamation
Publisher:
ISBN:
Category : Barrages
Languages : en
Pages : 860

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Author: United States Committee on Large Dams
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 164

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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: Anthony Giddens
Publisher: John Wiley & Sons
ISBN: 0745666507
Category : Social Science
Languages : en
Pages : 220

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The sexual revolution: an evocative term, but what meaning can be given to it today? How does 'sexuality' come into being and what connections does it have with the changes that have affected personal life on a more general plane? In answering these questions, Anthony Giddens disputes many of the dominant interpretations of the role of sexuality in modern culture. The emergence of what the author calls plastic sexuality - sexuality freed from its intrinsic relation to reproduction - is analysed in terms of the long-term development of the modern social order and social influences of the last few decades. Giddens argues that the transformation of intimacy, in which women have played the major part, holds out the possibility of a radical democratization of the personal sphere. This book will appeal to a large general audience as well as being essential reading for students and professionals.

Author: Edward Wegmann
Publisher:
ISBN:
Category : Barrages
Languages : ru
Pages : 842

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Author: Anton J. Schleiss
Publisher: CRC Press
ISBN: 1315736918
Category : Technology & Engineering
Languages : en
Pages : 272

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Despite the mechanisms of reservoir sedimentation being well known for a long time, sustainable and preventive measures are rarely taken into consideration in the design of new reservoirs. To avoid operational problems of powerhouses, sedimentation is often treated for existing reservoirs with measures which are efficient only for a limited time.Th

Author: Elizabeth Ann Danto
Publisher: Columbia University Press
ISBN: 0231506562
Category : Psychology
Languages : en
Pages : 540

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Today many view Sigmund Freud as an elitist whose psychoanalytic treatment was reserved for the intellectually and financially advantaged. However, in this new work Elizabeth Ann Danto presents a strikingly different picture of Freud and the early psychoanalytic movement. Danto recovers the neglected history of Freud and other analysts' intense social activism and their commitment to treating the poor and working classes. Danto's narrative begins in the years following the end of World War I and the fall of the Habsburg Empire. Joining with the social democratic and artistic movements that were sweeping across Central and Western Europe, analysts such as Freud, Wilhelm Reich, Erik Erikson, Karen Horney, Erich Fromm, and Helene Deutsch envisioned a new role for psychoanalysis. These psychoanalysts saw themselves as brokers of social change and viewed psychoanalysis as a challenge to conventional political and social traditions. Between 1920 and 1938 and in ten different cities, they created outpatient centers that provided free mental health care. They believed that psychoanalysis would share in the transformation of civil society and that these new outpatient centers would help restore people to their inherently good and productive selves. Drawing on oral histories and new archival material, Danto offers vivid portraits of the movement's central figures and their beliefs. She explores the successes, failures, and challenges faced by free institutes such as the Berlin Poliklinik, the Vienna Ambulatorium, and Alfred Adler's child-guidance clinics. She also describes the efforts of Wilhelm Reich's Sex-Pol, a fusion of psychoanalysis and left-wing politics, which provided free counseling and sex education and aimed to end public repression of private sexuality. In addition to situating the efforts of psychoanalysts in the political and cultural contexts of Weimar Germany and Red Vienna, Danto also discusses the important treatments and methods developed during this period, including child analysis, short-term therapy, crisis intervention, task-centered treatment, active therapy, and clinical case presentations. Her work illuminates the importance of the social environment and the idea of community to the theory and practice of psychoanalysis.

Author:
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 104

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Author: Karin Aijmer
Publisher: John Benjamins Publishing
ISBN: 9027286647
Category : Language Arts & Disciplines
Languages : en
Pages : 190

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We have recently seen a broadening of pragmatics to new areas and to the study of more than one language. This is illustrated by the present volume on Contrastive Pragmatics which brings together a number of articles originally presented at the 10th International Pragmatics Conference in Göteborg in 2007. The contributions deal with pragmatic phenomena such as speech acts, discourse markers and modality in different language pairs using theoretical approaches such as politeness theory, Conversation Analysis, Appraisal Theory, grammaticalization and cultural textology. Also discourse practices and genres may differ across cultures as illustrated by the study of TV news shows in different countries. Contrastive pragmatics also includes the comparative study of pragmatic phenomena from a foreign language perspective, a new area with implications for language teaching and intercultural communication. The contributions to this volume were originally published in Languages in Contrast 9:1 (2009).

Author: Bernd Würsig
Publisher: Springer
ISBN: 3030166635
Category : Science
Languages : en
Pages : 508

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This book concentrates on the marine mammalian group of Odontocetes, the toothed whales, dolphins, and porpoises. In 23 chapters, a total of 40 authors describe general patterns of ethological concepts of odontocetes in their natural environments, with a strong bent towards behavioral ecology. Examples are given of particularly well-studied species and species groups for which enough data exist, especially from the past 15 years. The aim is to give a modern flavor of present knowledge of ethology and behavior of generally large-brained behaviorally flexible mammals that have evolved quite separately from social mammals on land. As well, the plight of populations and species due to humans is described in multiple chapters, with the goal that an understanding of behavior can help to solve or alleviate at least some human-made problems.