منابع مشابه
Conversion from Discharge to Gate Opening for the Control of Irrigation Canals
The paper reviews several methods to convert discharge into gate opening. A control algorithm for one or several reaches of an irrigation canal sometimes uses a discharge as the control action variable even though the device to be manipulated is a gate or a weir. In this case a slave controller has to convert the discharge into a gate opening or a sill elevation in case of a weir. This is usual...
متن کاملDistributed model predictive control for irrigation canals DISTRIBUTED MODEL PREDICTIVE CONTROL OF IRRIGATION CANALS
Irrigation canals are large-scale systems, consisting of many interacting components, and spanning vast geographical areas. For safe and efficient operation of these canals, maintaining the levels of the water flows close to prespecified reference values is crucial, both under normal operating conditions as well as in extreme situations. Irrigation canals are equipped with local controllers, to...
متن کاملDistributed model predictive control of irrigation canals
Irrigation canals are large-scale systems, consisting of many interacting components, and spanning vast geographical areas. For safe and efficient operation of these canals, maintaining the levels of the water flows close to prespecified reference values is crucial, both under normal operating conditions as well as in extreme situations. Irrigation canals are equipped with local controllers, to...
متن کاملPreceramic irrigation canals in the Peruvian Andes.
One of the most important developments in the existence of human society was the successful shift from a subsistence economy based on foraging to one primarily based on food production derived from cultivated plants and domesticated animals. The shift to plant food production occurred in only a few independent centers around the world and involved a commitment to increased sedentism and social ...
متن کاملA Basinwide Perspective on Entrainment of Fish in Irrigation Canals
—Entrainment in irrigation canals has been considered a major source of mortality for some fish populations. However, the magnitude of fish loss from entrainment is usually not evaluated from a basinwide perspective, thus precluding an assessment of populationlevel consequences. We incorporated such a perspective in evaluating entrainment losses of Bonneville cutthroat trout Oncorhynchus clarki...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1920
ISSN: 0036-8733
DOI: 10.1038/scientificamerican04241920-457a