In recent years, geophysical techniques have been increasingly used to monitor flow and transport processes in the Earth critical zone (ECZ). Among these, electrical resistivity tomography (ERT) is a powerful tool predict hydrological parameters state variables that influence mentioned vadose because of strong correlation between properties filtering medium. There many field tests considering p...

Abstract – This paper discusses FPGA implementation of finite impulse response (FIR) filters using their application in Digital Down-Converters (DDCs) for software radio and in (Electrical Resistance Tomography) ERT The implementation is based on distributed arithmetic (DA) which substitute multiply and accumulate operations with a series of look-up-table (LUT) accesses. Distributed arithmetic ...

Access to clean water for drinking and sanitation is a human right. Today water scarcity is a large problem and inequality in access to safe water is a striking truth. In Mozambique, the US foreign aid agency Millennium Challenge Corporation introduced the Rural Water Point Installation Program to increase access to safe water and sanitation – a step towards reducing poverty. 600 water points –...

Electrical resistance tomography (ERT)-based distributed surface sensing systems, or skins, offer alternative techniques for structural health monitoring, providing capabilities of, example, damage, strain, and temperature. Currently, however, the computational utilized skins are limited to planar surfaces. In this paper, overcome limitation, we generalize ERT-based nonplanar surfaces covering ...

Avertissement Le contenu de ce site relève de la législation française sur la propriété intellectuelle et est la propriété exclusive de l'éditeur. Les œuvres figurant sur ce site peuvent être consultées et reproduites sur un support papier ou numérique sous réserve qu'elles soient strictement réservées à un usage soit personnel, soit scientifique ou pédagogique excluant toute exploitation comme...

The critical zone (CZ) represents the most-shallow subsurface, where bio-, hydro-, and geospheres interact with anthropogenic activity. To characterize thickness lateral variations of CZ, here we focus on Eastern Betic Shear Zone (EBSZ), one most tectonically active regions in Iberian Peninsula. Within EBSZ, Guadalentín Depression is a highly populated area intensive agricultural activity, char...

Detailed field geological, geoelectrical, hydrochemical, and microbiological studies were executed in the Wadi Hof area, southeastern Cairo, Egypt to delineate causes of landslides along train pathway between eastern camp western clay quarry. The area under consideration is a gentle slope from east west. Eocene limestone rocks constitute most common outcrops. Structurally, investigated was affe...