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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Comparative study of shaft or morning glory spillways

Tejada-Saenz, Jose. January 1946 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1946. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
2

Optimal operation of an upstream reservoir for flood control

Johnson, Wayne Adrian January 1970 (has links)
This thesis describes the development of a method for determining the most efficient way to operate an upstream flood control reservoir for maximum flood peak reduction at a downstream point. Linear programming is used as the optimization technique. A simplified case is studied, namely that of a single storage reservoir approximately 500 miles upstream from the area to be protected. A channel routing method which was linear was required for use with linear programming. For this reason a Muskingum type channel routing method was chosen. The results for the three years that were studied are presented in graphical form. They indicate the extent that the downstream peak could be reduced and the operation of the upstream reservoir which would be required to bring about this reduction in peak flow. Procedures for extending the technique to more complex systems and possible applications of the method are discussed. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate
3

The response of riparian vegetation to PL-566 flood control structures

Duke, Jacquelyn R. White, Joseph Daniel. January 2006 (has links)
Thesis (Ph.D.)--Baylor University, 2006. / Includes bibliographical references (p. 112-129).
4

The Compartmented Reservoir

Cluff, C. B. 16 June 1976 (has links)
Water Brief, Fourth Draft / 6.16.76 / Introduction: The need for an efficient method of storage of water in arid zones has long been recognized. Efforts have been made everywhere to develop small storage tanks to provide water at critical periods. However, most of the existing tanks have such annual or seasonal evaporation losses that they are equal or even greater than the average depth of the tank. Thus many of these tanks are completely depleted before the end of the dry season, often with dramatic consequences for human beings, livestock or agricultural activities depending on the water supply. Reducing the heavy evaporation and seepage losses in these tanks is an important way to increase the supply of water. Several methods have been developed to reduce these losses but one of the most effective ways is to make the tanks with a smaller surface but deeper. The importance of making tanks deeper has been recognized for many years but there are several constraints for achieving depth in tanks: (a) the gradient of the water stream, (b) the unsuitability of dozers to work in deep pits, and (c) shallow soils. However, these constraints can be removed by using high rise banks and water pumps. Efficiency can also be improved by keeping the water concentrated. With this idea in mind, Mr. Cluff, FAO Consultant, has developed the concept of the compartmented tank, which is being tried out successfully in Mexico, and whose main features are summarized below.
5

Applications of the Compartmented Reservoir in Arizona: Project Completion Report

Cluff, C. Brent, Putman, Frank 01 1900 (has links)
Project Completion Report, OWRT Project No. A-082-ARIZ / Agreement No. 14-34-0001-8003, Project Dates: October 1977-September 1978 / Acknowledgement: The work upon which this report is based was supported by funds provided by the United States Department of the Interior, Office of Water Research and Technology, as authorized under the Water Resources Research Act of 1978. / This report contains the results of a one year study to apply the compartmented reservoir concept to water storage problems in Arizona. The range of selected projects was from a ten thousand cubic meter (8.1 af) reservoir for a water harvesting agrisystem at Black Mesa, to a 238 million cubic meter (200,000 af) flood control dam, Tat Momolikot Dam on the Papago Reservation, to supply water for irrigation. Other sites studied were the Santa Cruz River at Continental, to supply an industrial /domestic water, Leslie Creek site for recreation, and improvement of Mormon Lake for recreation. Evaporation from Tat Momolikot and Mormon Lake are presently consuming most of the available water. Through compartmentalization this evaporation can be significantly reduced. At the other potential dam sites on the Santa Cruz and Leslie Creek the use of a compartmented reservoir will make these otherwise marginal projects practical. The Black Mesa Agrisystem is presently demonstrating the utility of the compartmented reservoir system.
6

Tuttle Creek Dam : a case study in local opposition /

Meyer, Philip. January 1962 (has links) (PDF)
Thesis (M.A.)--University of North Carolina, 1962. / Includes bibliographical references (leaves [122]-128).
7

Optimal operation of a system of flood control reservoirs

Flavell, David Richard January 1974 (has links)
This thesis describes a study of the application of linear programming, a mathematical optimization technique, to the problem of operating a system of flood control reservoirs in the most efficient way for maximum flood peak reduction. The reservoir system studied was one which is proposed for flood control in the Fraser River Basin and for which preliminary designs have been made. The proposed sites are in the headwater areas of the river basin, remote from the area to be protected. A channel routing method which was linear was required for use with the linear programming technique. A method was developed which was based on monoclinal wave theory. Several different cases were studied in which the reservoir capacities and combinations of reservoirs included in the system were varied. The results show the maximum regulation which is available from each combination of reservoirs and identify the minimum storage capacities required at each site. Application of the technique in planning studies and in real-time reservoir operation is discussed. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate
8

Operation plan of the Wonogiri Reservoir, Central Java, Indonesia

Sutadi, Graita. January 1900 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1982. / Includes bibliographical references (leaves 78-79).
9

Key economic areas in Chinese history as revealed in the development of public works for water-control,

Chi, Chʻao-ting, January 1900 (has links)
Thesis (Ph. D.)--Columbia University, 1936. / Without thesis note. Bibliography: p. 151-164.
10

Ruins and recollections : on the subject(s) of displacement /

Rao, Vyjayanthi Venuturupalli. January 2002 (has links)
Thesis (Ph. D.)--University of Chicago, 2002. / Includes bibliographical references (leaves 255-266). Also available on the Internet.

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