Currently, with the quick increase in global population, energetic crisis, environmental problematic, and development of power electronic devices generated need to include new technologies for supporting potentiating electrical distributions systems; Distribution Static Compensators (D-STATCOMs) are highly used this task due advantages that technology presents: reduction loss, operation costs, ...

This work analyzed the effectiveness of two electrical geophysical methods in characte-rizing tailings dams. A large flotation cell used for sludge thickening concentration plant Federico Mine (closed 1985) within old mining district La Carolina (southeastern Spain) was selected this research. In addition to direct information provided by geology study area and surface exposure waste deposits, ...

SUMMARY Induced polarization (IP) is an acknowledged method in ore exploration and can be applied to evaluate the metal content dumps containing residues of processing facilities. Existing models explain relationships between grain size particles with IP parameters. However, assume full water saturation samples, which often not case field conditions at dump sites. Hence, our study investigates ...

SUMMARY Thanks to the emergence of new technologies developed with goal performing large-scale galvanometric induced polarization surveys and thanks a better understanding underlying physics polarization, this geophysical method can now be applied in field volcanology geothermal resources assessment. A approach is here for directly inverting primary secondary electric fields recorded at set ind...

The determination of base sequences of several transfer ribonucleic acids has led to proposals for their secondary structure. The most popular structural model has had the form of a cloverleaf.' There have also been some indications of an additional fixation of the arms of the model in a tertiary structure. So far there is no direct experimental proof for any of these structures, although inves...

Direct Current (DC) Resistivity and Induced Polarization (IP) response of six profiles were measured using the Gradient electrode configuration in Adventdalen, Svalbard, to characterise near-surface stratigraphy soil account for geotechnical environmental aspects global warming arctic region. In addition, Wenner array data was collected selected examine its effectiveness as compared array, give...

introduction the mahour exploration area is a polymetallic system containing copper, zinc and silver. the mineralization can be seen in two forms of veins and disseminations. this area is structurally within the lut block, west of deh-salm village. recent exploration work and studies carried out by geologists on this volcanic-plutonic area of lut demonstate its importance indicating new reserve...

introduction the garmab copper deposit is located northeast of qaen (south khorasan province) in the1:100,000 scale map of abiz in the eastern tectonic zone of iran. it is hosted by late paleocene-eocene lava flows consisting mainly of andesite, trachy andesite, andesite-basalt and basalt lavas, as well as pyroclastic rocks, including tuffs and ignimbrites. the lut block has undergone intense m...

Complex resistivity imaging provides information on the subsurface distribution of the electrical conduction and polarisation properties. Spectral induced polarisation (SIP) refers to the frequency dependence of these complex resistivity values. Measured SIP signatures are commonly analysed by performing a Cole–Cole model fit or a Debye decomposition, yielding in particular chargeability and re...