نتایج جستجو برای: arak aquifer

تعداد نتایج: 9175  

Farideh Jalali Mashayekhi, Maryam Baazm, Mohammad Bayat, Parvindokht Bayat, Yusef Abbasi, Zahra Nadi,

Correction to: Effect of Resistance and Endurance Trainings on Nrf2/Keap1 Signaling Pathway in Testicular Tissue of Type 2 Diabetic Rats Zahra Nadi1, Yusef Abbasi2, Farideh Jalali Mashayekhi3, Mohammad Bayat2, Parvindokht Bayat4, Maryam Baazm5 1 MSc in Anatomy, School of Medicine, Arak University of Medical Sciences, Arak, Iran 2 Assistant Professor, Department of Anatomy, Scho...

2009
B. R. Scanlon R. C. Reedy D. Kurtzman A. Mukherjee D. K. Nordstrom

High groundwater As concentrations in oxidizing systems are generally associated with As adsorption onto hydrous metal (Al, Fe or Mn) oxides and mobilization with increased pH. The objective of this study was to evaluate the distribution, sources and mobilization mechanisms of As in the Southern High Plains (SHP) aquifer, Texas, relative to those in other semiarid, oxidizing systems. Elevated g...

ژورنال: علوم آب و خاک 2011
سید حسن طباطبائی, , محبوبه غزالی, ,

The accuracy and precision of the input data in decision making is important. Error originates from data collection, data entry, storage, retrieval and analysis of the data which consequently result in model error. One of the errors in spatial analysis is interpolation error. The main objective of this research was the suitability assessment of some interpolation methods for estimation of groun...

The unmanaged groundwater extraction and inadequate aquifer recharge is the major cause of groundwater depletion in different parts of the world. In this study, the groundwater flow system of Mahvelat-Feizabad aquifer (NE of Iran) has been numerically simulated using MODFLOW code in the GMS interface. The model, primarily, calibrated for steady state condition for the mean hydraulic values of o...

Monitoring of Meteorological and groundwater droughts and determining of the lag time between these two types of droughts in spatial various locations can help in consumption management and protection of the groundwater resources. In this study, spatial and temporal changes of droughts were analyzed using the Standard Precipitation and Groundwater Resource Indices (SPI & GRI) in the northern Ma...

2012
Wei Luo Darryll T. Pederson

[1] The High Plains Aquifer (HPA), underlying parts of 8 states from South Dakota to Texas, is one of the largest fresh water aquifers in the world and accounts for 30% of the groundwater used for irrigation in the US. Determining the distribution of HPA’s hydraulic conductivity (K) is critical for water management and addressing water quality issues. K is traditionally estimated from well pump...

2016
Mohammad Ali Baghapour Amir Fadaei Nobandegani Nasser Talebbeydokhti Somayeh Bagherzadeh Ata Allah Nadiri Maryam Gharekhani Nima Chitsazan

BACKGROUND Extensive human activities and unplanned land uses have put groundwater resources of Shiraz plain at a high risk of nitrate pollution, causing several environmental and human health issues. To address these issues, water resources managers utilize groundwater vulnerability assessment and determination of protection. This study aimed to prepare the vulnerability maps of Shiraz aquifer...

Journal: :Ground water 2011
I M Cozzarelli J K Böhlke J Masoner G N Breit M M Lorah M L W Tuttle J B Jaeschke

Leachate from municipal landfills can create groundwater contaminant plumes that may last for decades to centuries. The fate of reactive contaminants in leachate-affected aquifers depends on the sustainability of biogeochemical processes affecting contaminant transport. Temporal variations in the configuration of redox zones downgradient from the Norman Landfill were studied for more than a dec...

Journal: :Ground water 2014
Quanrong Wang Hongbin Zhan Zhonghua Tang

The nonhorizontal-model-layer (NHML) grid system is more accurate than the horizontal-model-layer grid system to describe groundwater flow in an unconfined sloping aquifer on the basis of MODFLOW-2000. However, the finite-difference scheme of NHML was based on the Dupuit-Forchheimer assumption that the streamlines were horizontal, which was acceptable for slope less than 0.10. In this study, we...

2005
Junfeng Zhu Tian-Chyi J. Yeh

[1] Hydraulic tomography is a cost-effective technique for characterizing the heterogeneity of hydraulic parameters in the subsurface. During hydraulic tomography surveys a large number of hydraulic heads (i.e., aquifer responses) are collected from a series of pumping or injection tests in an aquifer. These responses are then used to interpret the spatial distribution of hydraulic parameters o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید