Results 31 to 40 of about 2,915 (260)

Electrical geophysical evaluation of susceptibility to flooding in University of Nigeria, Nsukka main campus and its environs, Southeastern Nigeria

Journal of Groundwater Science and Engineering, 2023
Flooding occurs when rainfall exceeds the absorption capacity of soil and causes significant environmental consequences. In this study, electrical resistivity techniques were employed to assess the flood susceptibility of the study area by examining ...
Daniel Nnaemeka Obiora, Johnson Cletus Ibuot   +1 more
doaj   +1 more source

A convolutional neural network approach to electrical resistivity tomography

Journal of Applied Geophysics, 2020
Abstract Electrical resistivity tomography (ERT) is an ill-posed and non-linear inverse problem commonly solved through deterministic gradient-based methods. These algorithms guarantee fast convergence toward the final solution but hinder accurate uncertainty assessments. On the contrary, numerical Markov Chain Monte Carlo algorithms provide
Aleardi M., Vinciguerra A., Hojat A.
openaire   +3 more sources

Analysis of electrical resistivity and acoustic wave velocity characteristics in fault structures and their combined application in the detection process

Shuiwen dizhi gongcheng dizhi
Finding out the specific location of the fault structure is of great significance for the engineering site selection and stability evaluation. Electrical resistivity tomography and acoustic logging are geophysical methods widely used in detecting ...
Jian GAO, Jianwei PAN, Lin ZHAN, Lun QIAN, Chen YANG, Chengli ZHANG   +5 more
doaj   +1 more source

Electrical Resistivity Tomography (ERT) Monitoring for Landslides: Case Study in the Lantai Area, Yilan Taiping Mountain, Northeast Taiwan

Frontiers in Earth Science, 2021
Water saturation in the bedrock or colluvium is highly related to most landslide hazards, and rainfall is likely a crucial factor. The dynamic processes of onsite rock/soil mechanics could be revealed via monitoring using the electrical resistivity ...
Wu-Nan Tsai, Chien-Chih Chen, Chien-Chih Chen, Chih-Wen Chiang, Pei-Yuan Chen, Chih-Yu Kuo, Chih-Yu Kuo, Kuo-Lung Wang, Meei-Ling Lin, Rou-Fei Chen   +9 more
doaj   +1 more source

Differentiating Clayey Soil Layers from Electrical Resistivity Imaging (ERI) and Induced Polarization (IP) [PDF]

Engineering and Technology Journal, 2013
Electrical Resistivity Imaging (ERI) method is one of the most promising techniques which is well suited for the applications in the fields of geohydrology, environmental science and engineering.
Nadia A. Aziz, Mahmoud R. AL- Qaissy, Hussein H. Karim   +2 more
doaj   +1 more source

Studies of the Electrical Resistivity Tomography Monitoring of the Issyk-Ata Fault Zone (Northern Tien Shan)

Russian Journal of Earth Sciences, 2023
In 2023, monitoring geophysical studies were carried out using the electrical resistivity tomography (ERT) method along three profiles that cross the strike zone of the Issyk-Ata fault in the transverse direction.
Rybin Anatoly, Bataleva Elena, Zabinyakova Olga, Nepeina Kseniia   +3 more
doaj   +1 more source

Evaluation of Malekan Plain Aquifer Hydraulic Parameters Using Electrical Resistivity [PDF]

پژوهش‌های آبخیزداری, 2019
Estimating aquifer hydraulic parameters is essential for the assessment and management of groundwater resources. In this paper, the hydraulic parameters of Malekan Plain Aquifer were estimated using the resistivity data.
Farahnaz Azizi, Asghar Asghari Moghaddam, Amirhossein Nazemi   +2 more
doaj   +1 more source

The Extended Data-Adaptive Probability-Based Electrical Resistivity Tomography Inversion Method (E-PERTI) for the Characterization of the Buried Ditch of the Ancient Egnazia (Puglia, Italy)

Applied Sciences, 2022
A geoelectrical survey was carried out outside the walls of the ancient Egnazia (Puglia, Italy) with the aim of enriching the knowledge about its defense system.
Marilena Cozzolino, Paolo Mauriello, Domenico Patella   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Imaging of Fault and Fracture Controls in the Arbuckle-Simpson Aquifer, Southern Oklahoma, USA, through Electrical Resistivity Sounding and Tomography Methods

International Journal of Geophysics, 2012
Arbuckle-Simpson aquifer in southern Oklahoma, USA, is a major source of water for industrial and municipal use. It is also a major source for spring-fed streams in the area.
Kumar Ramachandran, Bryan Tapp, Tayler Rigsby, Erin Lewallen   +3 more
doaj   +1 more source