the basic purpose of the fulfillment this research has been the appointment of economical evaluation indexes of aqua-agriculture reservoirs in golestan province. the method of information gathering in this research has been in way survey and in method census from 42 of aqua-agriculture reservoirs that information necessary to complete questionnaire has prepared. result showed the highest and lo...

The species composition and abundance of the zooplankton community of seven reservoirs of the Paranapanema River, located between 22 degrees 37'-23 degrees 11'S and 48 degrees 55'-50 degrees 32'W, were analysed over four periods, in the year of 1979. The zooplankton community was composed of 76 species of Rotifera, 26 species of Cladocera and 7 species of Copepoda. For a large part of the perio...

Sediment flushing of reservoirs is an operational technique, whereby previously accumulated sediments in the reservoirs are hydraulically removed by accelerated flow when the bottom desiltingoutlets of the dam are opened. In this research, the process of sediment flushing is simulated by a three dimensional numerical model in which sediment and flow interaction are reflected in the reservoirs. ...

epidemiological features of some of several foci of cutaneous leishmaniasis (cl), such as bushehr province, had not been detected in iran. this study was carried out for detection and characterization of epidemiological features of cl in these regions, from oct. 1998 to oct. 1999. all of the primary school children aged 7-14 years and total populations of 14 villages were examined for the prese...

To study the relationships between the biomass of reservoir communities and to examine the differences between reservoirs with different fish assemblages, we used limnological and fish data for 31 Argentinean reservoirs. Despite conspicuous systemic differences with lakes, reservoirs dominated by visual zooplanktivorous fishes have had phytoplankton biomass drastically higher than reservoirs wi...

Jay R. Lund, Professor Department of Civil and Environmental Engineering University of California, Davis Davis, CA 95616 [email protected] ABSTRACT Theoretical hydropower operation rules are derived and discussed for reservoirs in parallel, in series, and single reservoirs for cases where reservoirs typically refill before they empty and for parallel reservoirs when reservoirs are expected to ...

sediment flushing of reservoirs is an operational technique, whereby previously accumulated sediments in the reservoirs are hydraulically removed by accelerated flow when the bottom desiltingoutlets of the dam are opened. in this research, the process of sediment flushing is simulated by a three dimensional numerical model in which sediment and flow interaction are reflected in the reservoirs. ...

different methods exist for the zonation of oil reservoirs based on petrophysical data and well logs. among them are: permeability-porosity cross polt, pickett and soder and gill methods. in this study a statistical zonation technique has been used for the marun and pazanan oil reservoirs in iran based on effective porosity, density, sonic, neutron and resistivity data. petrophysical interpreta...

Floating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate the impact of floating platforms on the limnological aspects of Nova Ponte hydropower plant reserv...