نتایج جستجو برای: integrated water
تعداد نتایج: 810787 فیلتر نتایج به سال:
First posted July 27, 2021 For additional information, contact: Water Resources Mission AreaU.S. Geological Survey12201 Sunrise Valley DriveReston, VA 20192Contact Pubs Warehouse The United States faces growing challenges to its water supply, infrastructure, and aquatic ecosystems because of population growth, climate change, floods, droughts. To help address these challenges, the U.S. Survey A...
BACKGROUND Ecosystem management requires organizing, synthesizing, and projecting information at a large scale while simultaneously addressing public interests, dynamic ecological properties, and a continuum of physicochemical conditions. We compared the impacts of seven water level management plans for Lake Ontario on a set of environmental attributes of public relevance. METHODOLOGY AND FIN...
The U.S. Environmental Protection Agency (EPA) has been pressing for this type of approach since the promulgation of its Water Quality Trading Policy in 2003, the intent of which is “to encourage voluntary trading programs that facilitate implementation of Total Maximum Daily Loads (TMDLs), reduce the costs of compliance with Clean Water Act regulations, establish incentives for voluntary reduc...
Wetlands as water resources have a special place in the semi-arid plateau of Iran and boundary determination is necessary for their effective conservation and conflict resolution among stakeholders that are dependent on these resources. Determination of the wetland boundaries should be commensurate with environmental features affecting on it which normally extend beyond water extent. Ecological...
during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
We describe the application of a local discontinuous Galerkin method to the numerical solution of the three-dimensional shallow water equations. The shallow water equations are used to model surface water flows where the hydrostatic pressure assumption is valid. The authors recently developed a DGmethod for the depth-integrated shallow water equations. The method described here is an extension ...
one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...
Over the last decade the approach to dealing with an increasing water demand in the Cape Metropolitan Area (CMA) has progressively shifted from a supply oriented philosophy to one where strategies for reducing the demand are integrated with supply management. While there is still much to be done to implement a totally integrated approach, a firm foundation has been laid. Water demand management...
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