The resistivity, complex resistivity and complex permittivity of the chrome-contaminated soil were studied. Under the different pollution concentration and water content in the soil samples conditions, the relations between the resistivity, complex resistivity and complex permittivity of the chrome-contaminated soil and water content and the concentration of pollution were analyzed. When adding...

corrosion of water and gas pipes is not desirable from the view point of health, economy and nuisances. there are many factors in soil which attack the metal pipes for corrosion. (steel, cast, iron and like). that is why the designer of metal pipes for conveyance of metal pipes for conveyance of water and gas should be aware of these factors and pay nutmost care in selection of pipes and protec...

Materials and methods The questionnaire used for the practicing medics was the effort-reward-imbalance (ERI) model of Siegrist et al. The questionnaire used for the students survey was the effort-reward-imbalance (ERI) model for school and student settings. The ERI scores on a 5 point Likert scale. In total, N = 716 medical students completed the questionnaire (65.4% female, 34.6% male). 61% of...

mrs method is one of the new geophysical methods that directly detects the groundwater. by using this method, one can determines some parameters of aquifer (porosity, permeability and transmissivity). the purpose of this research is the application of mrs method in the conductive ground. combination of mrs and rs method is used for better detection of the aquifer in the region of abyek located ...

This study provides forensic search teams with systematic geophysical monitoring data over simulated clandestine graves for comparison to active cases. Simulated ‘wrapped’ and ‘naked’ burials were created. Multi-geophysical surveys were collected over a three-year monitoring period. Bulk ground resistivity, Electrical Resistivity Imaging, multi-frequency Ground Penetrating Radar and grave ‘soil...

The existing knowledge regarding seawater intrusion and particularly upconing, in which both problems are linked to pumping, entirely relies on theoretical assumptions. Therefore, in this paper, an attempt is made to capture the effects of pumping on seawater intrusion and upconing using 2D resistivity measurement. For this work, two positions, one perpendicular and the other parallel to the se...

A network model of porous media is used to assess the effects of pore structure and matrix wettability on the resistivity of partially saturated rocks. Our focus is the magnitude of the saturation exponent n from Archie’s law and the hysteresis in resistivity between drainage and imbibition cycles. Wettability is found to have the dominant effect on resistivity. The network model is used to inv...

Mine water is a menace to coal mining. Transient Electromagnetic Method (TEM) is a relatively quick and efficient method to detect the water yield property of a targeted layer. Based on mine-oriented 3D TEM observing system, the signal of induced voltage is obtained. TEM 3D data volume can be calculated through the calculation of late-period resistivity and time-depth conversion. After setting ...

the electrical resistivity of hydrocarbon reservoir rocks is an important parameters in the calculation of water and oil saturation percent in both carbonate and sandstone reservoir rocks.in this regard, most studies have concentrated on the confining  pressure on cementation factor and electrical resistivity in sandstone reservoir rocks. in this study the effect of confining pressure on cement...