نتایج جستجو برای: karun
تعداد نتایج: 199 فیلتر نتایج به سال:
One of the problems of existing irrigation networks is seepage phenomena. Seepage problem and its control in irrigation channels is one of the most important issues in the design, construction, maintenance and operation of these channels. In this study, simulated the rate of seepage and phreatic lines in the Mianab irrigation and drainage channels located in the Karun basin using mathematical t...
This research was prepared as a preliminary laboratory study to achieve moving hydraulic jump with controlled discharges. It is an initial part of the that being treat salt tide occurring in Shatt al-Arab due lack water imports were coming from Karun and Karkheh rivers Iranian territory, this scarcity caused affected significantly environmental reality city Basra agricultural lands surrounding ...
increasing of energy demand and decreasing of water resources, could make the future energy production as a big challenge. climate change is one of the main reasons for water resources limitation. future precipitation and air temperature, change hydrological conditions and directly effect on the hydropower production. for showing the future condition and making it possible to manage the hydropo...
This study modeled the effects of hydraulic dredging on the lower Karun river in Ahvaz range to thevillage is Farsyan . using software 4.1 HEC-RAS, one-dimensional model of the flow field wassimulated . After entering the information into the model and its calibration based on the selected,design flow model was implemented to extract the water surface elevation levels and spreading areaswere me...
elymais regions include the elevated plains and valleys of bakhtiary mountains in east of karun river and in fact it is the northeast of khozestan province. although the exact determining of the region extend is difficult but during its life the extend has changed in terms of the new conquests of parthians and some more or less important parts of elymais were dominated by small neighboring stat...
chah?rmah?l-o-bakhtiy?r? province has an area of some one percent of the area of iran and is situated in the northern basin of karun river, which is one of the most vital flows of the south-west iran. for various reasons, the region has been ignored in the national archeological studies. in a quick glance, the present study seeks to show the significance of the findings obtained in the course o...
in this study 485 specimen of garra rufa (heckel, 1843) from 29 populations from six river systems and basins including tigris, karkheh, karun, persis (helleh and mond), hormuz and maharlu were collected by a 5mm mesh sized seine net, anesthetized in 1% clove oil solution, fixed in 10% formalin and transferred to the laboratory for further investigations. some 28 morphometric, 25 morphometric p...
The aim of this study is to retrieve land surface temperature (LST), air temperature (AT) and precipitation and to study their relationship with vegetation in rang lands of Karun watershed of Khuzestan province. For this purpose, land surface temperature (LST) and NDVI was drived from NOAA-AVHRR for maximum amount of greenness (April) for a period of 27 years. In order to extract LST, Price alg...
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