نتایج جستجو برای: gotvand

تعداد نتایج: 52  

Upper Gotvand dam is constructed on the Karun River located in the south west of Iran. In this paper, 2D and 3D models of the dam together with the foundation and abutments were constructed and several seepage analyses were carried out. Then the gypsum veins scattered throughout the foundation ground and also the seepage pattern were included in the models, hence the dissolution law of gypsum, ...

ژورنال: اکوبیولوژی تالاب 2021
Borna, Reza, Hassan, Fatemeh,

Abstract The negative balance of water reserves and reduce the size of static storage aquifers including the effects of the drought phenomenon is repeated on the status of surface and groundwater resources in Iran including Khuzestan province has had an impact. In this study, using fuzzy and ArcGIS version also better understand the effects created in the statistical period on the aquifer Gotv...

Objective: The purpose of this study was to determine the effect of chamomile vaginal gel on dyspareunia and sexual satisfaction in postmenopausal women. The phytoestrogenic properties of Matricaria chamomilla were the reason for selection of this plant. Materials and Methods: This double-blind clinical trial research was conducted on 96 eligible postmeno...

Journal: :international journal of civil engineering 0
r. mahin roosta assistant professor, engineering faculty, tarbiat modares university, tehran, iran a. alizadeh m.sc student, department of civil engineering, zanjan university,zanjan, iran

in the first impounding of rockfill dams, additional settlements occur in upstream side in saturated rockfills due to collapse phenomenon even high rainy seasons can cause additional deformation in the dumped rockfills. unfortunately these displacements are not taken into account in the conventional numerical models which are currently used to predict embankment dam behavior during impounding. ...

The main goal of preset research is investigate the effects of vertical component of Near-Fault and Far-Field earthquake records on the probability of overtopping induced damage of earth dam due to the reduction of freeboard due to the settlement of dam crest. In this respect 12 different earthquake record are selected. Nonlinear dynamic analysis of earth dam is implemented with FLAC 3D using F...

Journal: :geopersia 2013
manouchehr chitsazan gholamreza rahmani ahmad neyamadpour

in this paper, the artificial neural network (ann) approach is applied for forecasting groundwater level fluctuation in aghili plain,southwest iran. an optimal design is completed for the two hidden layers with four different algorithms: gradient descent withmomentum (gdm), levenberg marquardt (lm), resilient back propagation (rp), and scaled conjugate gradient (scg). rain,evaporation, relative...

Journal: :geopersia 0
manouchehr chitsazan faculty of earth sciences, shahid chamran university, ahvaz, iran gholamreza rahmani faculty of earth sciences, shahid chamran university, ahvaz, iran ahmad neyamadpour faculty of earth sciences, shahid chamran university, ahvaz, iran

in this paper, the artificial neural network (ann) approach is applied for forecasting groundwater level fluctuation in aghili plain,southwest iran. an optimal design is completed for the two hidden layers with four different algorithms: gradient descent withmomentum (gdm), levenberg marquardt (lm), resilient back propagation (rp), and scaled conjugate gradient (scg). rain,evaporation, relative...

ژورنال: علوم آب و خاک 2022

Humans are always trying to change land to use natural resources to meet their needs. One of the land use changes that take place in order to benefit from sustainable water resources is dam construction. Dam construction has many positive and negative consequences for the environment from the beginning to use. The objective of this study was to investigate the effect of Gotvand Dam on the probl...

Journal: :پژوهش های جغرافیای طبیعی 0
کاظم رنگزن عضو هیئت علمی دانشگاه شهید چمران اهواز علیرضا زراسوندی عضو هیئت علمی دانشگاه شهید چمران اهواز ارسلان حیدری کارشناس ارشد سنجش از دور و gis، استانداری کرمانشاه

abstract this research was conducted in the pegah - sorkh sub-catchments area, a semi-arid region in sw iran, using geographic information systems (gis) and remote sensing (rs) to compare the erosion potential method (epm) and modified pacific southwest interagency committee (mpsiac) models in erosion-potential mapping and sediment yield assessment. the study area with approximately 4600 ha sho...

ژورنال: علوم آب و خاک 2018

To continue or develop the exploitation of underground water for different different uses and purposes, as well as building any water structure, set of quantitative features of aquifers can be detected. To achieve this goal, quantitative monitoring of groundwater level is only possible. Accordingly, this study compared the impact of both the concept of marginal entropy and ordinary kriging for ...

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