An acoustic method is proposed for measuring the flow resistivity and the thickness of air-saturated porous materials. The conventional methods [14, 16, 17] for the measurement of the flow resistivity (or the viscous permeability) require the prior knowledge of the porosity. The method presented in this work is based on a temporal model of the direct problem in which a simplified expression (in...

A Geoelectrical resistivity survey using Vertical Electrical Soundings (VES) was carried out in Medak District, Andhra Pradesh, India, in order to assess the subsurface geology and groundwater potential zones. Twenty six vertical electrical soundings were recorded with Schlumberger electrode configuration with current electrode spacing (AB/2) half ranging from 1 to 150m. The field data has been...

A central loop Transient Electromagnetic TEM Resistivity Survey was conducted at the Geysir high temperature geothermal area as part the project of the author. The area is situated 110 km away from Reykjavik and lies in a shallow valley elongated north-south. Geologically it is surrounded by three volcanic domes made-up of rhyolites, hyloclastites and inter-glacial basaltic lava that obtain hea...

The present study presents three-dimensional investigations of a hydrostatic pingo in the Mackenzie Delta region and hydraulic Ogilvie Mountains contributes to better understanding about internal structures two types. A combined approach using quasi-three-dimensional electrical resistivity tomography, ground-penetrating radar frost probing allowed clear delineation frozen unfrozen areas subsurf...

A geophysical study was conducted for the El-Akader landfill to determine its impact on groundwater, which is located along northern road of Jaber International Road, north Jordan, covers an area 0.806km2. it commissioned in 1981 be only municipal at Jordan and considered second-largest country. geoelectrical survey using Vertical Electrical Sounding electromagnetic Transit Electromagnetic. Upo...

This numerical study examines the importance of self-consistently accounting for transport and electrostatics in the calculaiton of semiconductor/metal Schottky contact resistivity. It is shown that ignoring such self-consistency results in significant under-estimation of the contact resistivity. An explicit numerical method has also been proposed to efficiently improve contact resistivity calc...