نتایج جستجو برای: water shortage

تعداد نتایج: 563405  

Journal: :Comp.-Aided Civil and Infrastruct. Engineering 2006
Hyung Seok Jeong Jianhong Qiao Dulcy M. Abraham Mark A. Lawley Jean-Philippe P. Richard Yuehwern Yih

Since September 11, 2001, protecting the nation’s water infrastructure and improving water network resiliency have become priorities in the water industry. In this work, we develop methods to mitigate the consequences of water shortage resulting from destruction of facilities in water networks. These methods integrate search techniques, such as branch-and-bound and genetic algorithms, with a hy...

2008
David E. Rosenberg Jay R. Lund

Stochastic mixed-integer optimization is used to identify a portfolio of longand short-term supply and conservation actions for a municipal water system to cost-effectively accommodate a distribution of water shortages. Alternative robust, grey-number, and best/ worst case formulations systematically explore implications of uncertainties in action costs, life spans, water volumes gained or save...

1995
Jay R. Lund

A mathematical programming approach is developed for deriving estimates of the willingness-to-pay of water customers for improvements in water supply reliability. Reliability is represented as a probability distribution of different shortage levels, allowing the valuation of different profiles of water supply reliability. The approach is examined analytically and a two-stage linear programming ...

Journal: :Proceedings of the National Academy of Sciences 2010

2016
Gerassimos G. Peteinatos Audun Korsaeth Therese W. Berge Roland Gerhards Yanbo Huang

The success of precision agriculture relies largely on our ability to identify how the plants’ growth limiting factors vary in time and space. In the field, several stress factors may occur simultaneously, and it is thus crucial to be able to identify the key limitation, in order to decide upon the correct contra-action, e.g., herbicide application. We performed a pot experiment, in which sprin...

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