Assessment of pozzolanic reactivity is commonly based on a direct and indirect method which mostly used the electrical conductivity method. However,these methodsare limited by long-duration requirements or need to be done in laboratory. By modifying sandbox test measure resistivity Rice Husk Ash (RHA) as pozzolan, this investigation tries offer simpler that can situ. The RHA was heated oven wit...

This research was conducted in the coastal area of Parangtritis, Bantul Regency, Special Region Yogyakarta. study aims to describe hydrostratigraphy aquifers using Vertical Electrical Sounding (VES) geoelectric method, calculate volume availability and safe yield groundwater application, compare products with demand for water domestic tourism purposes. uses a field survey approach data analysis...

Hillslopes are one of the basic units that mainly control water movement and flow pathways within catchments. The structure of their shallow subsurface affects water balance , e.g. infiltration, retention, and runoff. Nevertheless, there is still a gap of knowledge of the hydrological dynamics on hillslopes, notably due to the lack of generaliza-5 tion and transferability. To improve the knowle...

Highly efficient energy storage is in high demand for next-generation clean energy applications. As a promising energy storage material, the application of Mn2O3 is limited due to its poor electrical conductivity. Here, high-pressure techniques enhanced the electrical conductivity of Mn2O3 significantly. In situ synchrotron micro X-Ray diffraction, Raman spectroscopy and resistivity measurement...

This paper proposes a useful technique for generating an earth resistivity map. Earth resistance is one of essential factors in a broad range of power system analysis and design. Information of earth resistivity is helpful for practical power system engineers in order to establish power system grounding. In this paper, a LANSAT7 image of a tested area of 50 km was used by ENVI program in associ...

The conductivity of high-resistivity polymer films is dependent on the magnitude of applied electric field, repeated electric field exposure, and sample temperature. A traditional constant voltage method was used, maintained under vacuum to more closely resemble the space environment. Both the strength of the applied voltage and the thickness of low-density polyethylene (LDPE) samples were vari...

A network of long-period magnetotelluric and magnetovariational data (124 sites) in the period range 9—16 to 2500—6400 s made it possible explore geoelectric structure Erth’s crust upper mantle most Dniester-Bug adjacent megablocks Ukrainian shield. Based on resistivity cross-sections along profiles (with 2D inversion), a three-dimensional matrix was created for territory limited by coordinates...