Induced polarization (IP) method has been successfully implemented in investigation of groundwater, geothermal and metallic ores. From published (Nordsiek and Weller, 2008) spectral induced polarization (SIP) data, the amplitude and phase spectra have been derived. Frequencydependent impedance data sets have been calculated from these SIP data sets, which were derived for chargeability by Debye...

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...

Combined resistivity and IP investigation is a powerful tool for mapping contaminant leakage as well as delineating the extent of contaminated ground and buried waste. Resistivity investigation is well established for detection and mapping of contaminated ground and groundwater. Low resistive zones around contaminated industrial sites and landfills correlate with high ion contents in groundwate...

In accomplishing successful electrospray ionization analyses, it is imperative to have an understanding of the effects of variables such as analyte structure, instrumental parameters, and solution composition. Here, we review some fundamental studies of the ESI process that are relevant to these issues. We discuss how analyte chargeability and surface activity are related to ESI response, and h...

Solar thermal fuels (STFs) harvest and store solar energy in a closed cycle system through conformational change of molecules and can release the energy in the form of heat on demand. With the aim of developing tunable and optimized STFs for solid-state applications, we designed three azobenzene derivatives functionalized with bulky aromatic groups (phenyl, biphenyl, and tert-butyl phenyl group...

The quantitative interpretation of induced polarization (IP) data in a complex three-dimensional (3D) environment is a very challenging problem . The analysis of IP phenomena is usually based on models with frequency dependent conductivity distri­ butions . In this paper, we develop a technique for 3D nonlinear inversion of IP data based on the Cole-Cole relaxation model. Our method takes into ...