Results 101 to 110 of about 25,632 (200)

Electrical resistivity tomography for aquifer imaging

open access: yesJournal of Nepal Geological Society, 2000
Aspects related to the development of a technique called electrical resistance tomography for producing two- or three­ dimensional subsurface images of an aquifer have been discussed. The technique is based on the automated measurement and computerised analysis of electrical resistivity changes caused by natural or man-made processes.
openaire   +2 more sources

Concept of a novel fast neutron imaging detector based on THGEM for fan-beam tomography applications

open access: yes, 2012
The conceptual design and operational principle of a novel high-efficiency, fast neutron imaging detector based on THGEM, intended for future fan-beam transmission tomography applications, is described.
B. Neykov   +10 more
core   +1 more source

Electrical Resistivity of a Partially Saturated Porous Medium at Subzero Temperatures

open access: yesVadose Zone Journal, 2019
Electrical resistivity tomography has been used in many frozen ground applications to delineate frozen and unfrozen areas of the subsurface and monitor changes with time.
Teddi Herring   +2 more
doaj   +1 more source

Assessing the Viability of Complex Electrical Impedance Tomography (EIT) with a Spatially Distributed Sensor Array for Imaging of River Bed Morphology: a Proof of Concept (Study) [PDF]

open access: yes
This report was produced as part of a NERC funded ‘Connect A’ project to establish a new collaborative partnership between the University of Worcester (UW) and Q-par Angus Ltd.
Hill, Graham   +4 more
core  

A Geometric Approach to Joint Inversion with Applications to Contaminant Source Zone Characterization

open access: yes, 2013
This paper presents a new joint inversion approach to shape-based inverse problems. Given two sets of data from distinct physical models, the main objective is to obtain a unified characterization of inclusions within the spatial domain of the physical ...
Abriola, Linda M.   +4 more
core   +1 more source

Evaluation of Unknown Tube Well Depth Using Electrical Resistivity Method

open access: yesMATEC Web of Conferences, 2017
Electrical resistivity method has increasingly adopted in engineering, environmental, mining and archaeological studies. Systematic and proper studies of unknown civil engineering structure evaluation particularly on tube well depth was rarely being ...
Zainal Abidin Mohd Hazreek   +6 more
doaj   +1 more source

Origin and structure of Devensian depressions at Letton, Herefordshire [PDF]

open access: yes, 2010
Groups of circular to oval enclosed depressions in soft sediments of Pleistocene age are relatively common in north-west Europe. These features are normally interpreted as being either glacial or periglacial in origin.
Astin, Timothy Robin   +2 more
core  

Evaluation of Lake Sediment Thickness from Water-Borne Electrical Resistivity Tomography Data. [PDF]

open access: yesSensors (Basel), 2021
Hoppenbrock J   +8 more
europepmc   +1 more source

A model reduction approach to numerical inversion for a parabolic partial differential equation

open access: yes, 2014
We propose a novel numerical inversion algorithm for the coefficients of parabolic partial differential equations, based on model reduction. The study is motivated by the application of controlled source electromagnetic exploration, where the unknown is ...
Borcea, Liliana   +3 more
core   +1 more source

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