Cu2S thin films have been prepared by vacuum evaporation method from CuS powder. Cu2S was deposited onto precleaned flat glass substrates coated under a pressure of 10 torr at an evaporation rate of 3Å /sec. The resistivity of the vacuum evaporated Cu2S thin films was measured in the temperature range 303K-453K and was found between 10 to 10 ohm cm. This low resistivity is due to degenerate nat...

Helicopter EM resistivity mapping began to be accepted as a means of geologic mapping in the late 1970s. The data were first displayed as plan maps and images. Some 10 years later, sectional resistivity displays became available using the same ‘‘pseudolayer’’ half-space resistivity algorithm developed by Fraser and the new centroid depth algorithm developed by Sengpiel. Known as Sengpiel resist...

This paper presents an alternative method for monitoring groundwater levels and estimating specific yields of unconfined aquifer under different seasonal conditions. The approach employs the Time-Lapse Electrical Resistivity Imaging (TL-ERI) machine learning-based time series clustering. A TL-ERI survey was conducted at ten sites (WS01-WS10 sites) throughout dry wet seasons, with five-time meas...

We studied the time fluctuations in the dynamics of geoelectrical data, recorded in Tito site, which is located in a seismic area of southern Italy. We used the Fisher Information Measure, which is a powerful tool to investigate complex and nonstationary signals. The time evolution of the Fisher Information Measure calculated for our signal reveals links with the earthquakes occurring in the in...

The geoelectrical features of the Travale geothermal field (Italy), one most productive fields in world, have been investigated by means three-dimensional (3D) magnetotelluric (MT) data inversion. This study presents first resistivity model derived from derivative-based 3D MT We analyzed that acquired over past decades order to determine its dimensionality, directionality, and phase tensor prop...