Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Safa N. Hamad"'
Publikováno v:
Journal of Engineering, Vol 18, Iss 1 (2023)
Water flow into unsaturated porous media is governed by the Richards’ partial differential equation expressing the mass conservation and Darcy’s laws. The Richards’ equation may be written in three forms,where the dependent variable is pressure
Externí odkaz:
https://doaj.org/article/82bc9a03184140e08c576025b7bd5c21
Publikováno v:
Journal of Engineering and Sustainable Development, Vol 11, Iss 2 (2007)
In this research, two procedures have been developed to predict runoff hydrographs from graded border and furrow irrigation systems. One of the procedures is based upon volume balance principle and the other is based upon the application of Manning's
Externí odkaz:
https://doaj.org/article/4aff662dc3084da69146fa2ef2b93b12
Autor:
Ahmed Ali, Safa N. Hamad
Publikováno v:
Journal of Irrigation and Drainage Engineering. 116:219-226
Land grading is an important and necessary operation for successful and efficient surface irrigation. Currently, most lands are graded or reshaped to form a plane surface with uniform slopes in one or two directions. In this research, a new technique
Autor:
Glen E. Stringham, Safa N. Hamad
Publikováno v:
Journal of the Irrigation and Drainage Division. 101:209-219
A technique is presented to design Irrigation Runoff Recovery Systems (IRRS) to recover runoff water from furrows and to increase irrigation efficiency. The method permits using a constant inflow to all furrows throughout the entire irrigation, requi
Autor:
Safa N. Hamad, Glen E. Stringham
Publikováno v:
Transactions of the ASAE. 18:0079-0084
Publikováno v:
Journal of the Irrigation and Drainage Division. 101:293-307
Energy inputs to irrigation are dramatically increasing as irrigated agriculture expands to meet world food demands and more sophisticated technologies are developed to increase water use efficiency. In this study nine irrigation systems, designed fo
Autor:
Safa N. Hamad, Glen E. Stringham
Publikováno v:
Journal of the Irrigation and Drainage Division. 104:275-281
A technique is presented to predict maximum nonerosive irrigation stream size for furrows as a function of soil type and bed slope. Data for different soils and field conditions were analyzed to estimate the coefficients of a prediction equation of t
Autor:
Safa N. Hamad, Glen E. Stringham
Publikováno v:
Journal of the Irrigation and Drainage Division. 102:471-471
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Akademický článek
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