The presence of heartwood is one the most important parameters in economic value that can affect final use wood. For construction materials, a large very necessary, considering this will have positive effect on basic properties Meanwhile, its proportion has negative impact quality pulp and paper. Therefore, study aims to review methods calculating area by using suitable measurement for better s...

Sinkholes in dolomitic areas are notoriously difficult geophysical targets, and selecting an appropriate geophysical solution is not straightforward. Electrical resistivity imaging, or tomography (RESTOM) is well suited to mapping sinkholes because of the ability of the technique for detecting resistive features and discriminating subtle resistivity variations. RESTOM surveys were conducted at ...

Landslide investigation in Laeya Village of North Buton Regency, Indonesia, is necessary since this area frequently experiencing landslides. In study, we applied a joint analysis interferometric synthetic aperture radar (InSAR), electrical resistivity tomography (ERT), and in-situ geology observation. The objectives multidisciplinary study are: a) to estimate ground deformation through the InSA...

Abstract Electrical resistivity tomography (ERT) and ground magnetic surveys were applied to characterize an old uncontrolled landfill in a former exploited sand gravel quarry area the north-west of city Cologne, Germany. The total field its vertical gradient recorded using proton precession magnetometer cover about 43,250 m 2 . data transferred frequency domain then reduced north pole. amplitu...

– The final result of the project is to create a 2D model mine plan based on results geophysical measurements. ERT was chosen as primary method in this due fact that voids and air have very high resistivity (3,3 ∙ 1016Ωm). Voids are well recognizable results. Using Seismic Refraction Tomography (SRT) planned some profiles. SRT rarely used archaeogeophysical research.

We have prepared Gd,-IPrXBa,Cu,O,-, phase spread alloy thin films with well-defined variations in the concentration of Pr across a single substrate. Their Pr concentrations were independently determined from electrical resistivity and Auger electron spectroscopy measurements. The results from both methods are in good agreement with each other. Using this technique several high-temperature super...

Conceptual models of aquifer systems can be refined and complemented with geophysical data, and they can assist in understanding hydrogeological properties such as groundwater storage capacity. This research attempts to use geoelectrical methods, Electrical Resistivity Tomography and Induced Polarization parameters, for mapping the subsurface in alluvial fans and to demonstrate its applicabilit...