the objective of this research is to represent applicability of surface nuclear magnetic resonance (snmr) in aquifer characterization, based on snmr and electrical resistivity tomography data. snmr is the only geophysical method that directly detects water. two important parameters, porosity and permeability are available through inversion of initial amplitude and decay time constant versus pul...

virtual environments, and information display applications need dynamic sound models rather than faithful audio reproductions. This implies three levels of research: auditory perception, physicsbased sound modeling, and expressive parametric control. Parallel progress along these three lines leads to effective auditory displays that can complement or substitute visual displays. W hen designing ...

A wire boom deployment system has been developed that uses a mechanism which is similar to the classic yo-yo despin mechanism. The goal has been to develop a way to rapidly deploy wire booms from a spinning sounding-rocket experiment. The main challenge in using a yo-yo-type mechanism is to dissipate the excess kinetic energy so that the wire booms do not re-wrap themselves about the spacecraft...

Abstract The present study aimed at evaluating aquifer flow unit of Edem by means stratigraphic modified Lorenz plot (SMLP) employing vertical electrical sounding. results from the sounding field data analysis shows that resistivity and thickness layer ranges 34.8 to 67561.2 Ωm 29.7 147.6 m respectively having an average value 70.248 m. Aquifer permeability fractional porosity range 1.5942 1657...

The inversion of vertical electrical sounding (VES) is normally performed considering a stratified medium formed by homogeneous, isotropic and horizontal layers. The simplicity of this geophysical model makes the inversion simple and computationally fast, and together with the main characteristics of the electroresistivity method, it was greatly responsible to make VES one of the most popular g...

Vertical Electrical Sounding (VES) was carried out in Rukpokwu, Obio/Akpor Local Government Area, Rivers State, Nigeria to investigate the effect of waste dump on groundwater quality study area. An ABEM SAS 300 terrameter used. Schlumberger configuration adopted for sounding acquire a 4 point data, and at Rukpokwu adjudged be free from dumps which served as control. The result resistivity surve...