Results 91 to 100 of about 8,292 (237)

Structural detection of goaf based on three-dimensional ERT technology

Systems and Soft Computing
Goaf, as an underground space formed after mining, the accurate detection of its structure is crucial to mine safety and the stability of underground engineering.
Nan Jia
doaj   +1 more source

Ensemble Kalman Filter Assimilation of ERT Data for Numerical Modeling of Seawater Intrusion in a Laboratory Experiment [PDF]

, 2018
Seawater intrusion in coastal aquifers is a worldwide problem exacerbated by aquifer overexploitation and climate changes. To limit the deterioration of water quality caused by saline intrusion, research studies are needed to identify and assess the ...
Bouzaglou, V\ue9ronique, Camporese, Matteo, Crestani, Elena, Gloaguen, Erwan, Salandin, Paolo   +4 more
core   +3 more sources

Characterization of the mixing of wheat straw slurries through electrical resistance tomography (ERT) [PDF]

, 2023
Wheat straw is a good source for the production of bioethanol. It can be converted into smaller fibers using mechanical treatment such as milling and grinding. These fibers can then be suspended in water and the slurry behaves as a non-Newtonian fluid possessing yield stress. In mixing operations, the presence of yield stress creates a region of active
openaire   +2 more sources

Spatial Variability of Permafrost and Active Layer Thickness in a Forested Hillslope of the Taiga Shield

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath, Christopher Spence, Andrew Ireson   +2 more
wiley   +1 more source

Enhanced subsurface investigation utilizing electrical resistivity tomography and precise positioning tools (study case: Rongga landslide) [PDF]

E3S Web of Conferences
This study presents an enhanced approach for subsurface investigation using Electrical Resistivity Tomography (ERT) coupled with precise positioning tools, focusing on the Rongga Landslide in Indonesia.
Hilmi Zaenal Putra Moch, Tohari Adrin, Soebowo Eko, Sudrajat Yayat, Amar, Wahyudin, Wardhana Dadan Dani   +6 more
doaj   +1 more source

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source

Jointly reconstructing ground motion and resistivity for ERT-based slope stability monitoring [PDF]

, 2017
Electrical resistivity tomography (ERT) is increasingly being used to investigate unstable slopes and monitor the hydrogeological processes within. But movement of electrodes or incorrect placement of electrodes with respect to an assumed model can ...
Adler, Andy, Boyle, Alistair, Chambers, Jonathan E., Meldrum, Philip I., Uhlemann, Sebastian, Wilkinson, Paul B.   +5 more
core   +2 more sources

Lobbying and Political Risk Disclosure: Do Socially Responsible Firms Voluntarily Disclose More?

British Journal of Management, EarlyView.
Abstract Drawing on theories of strategic communication, legitimacy, impression management and moral capital, this study investigates whether firms use political risk disclosure to offset negative perceptions associated with corporate lobbying. Using a sample of 10,120 observations from 1362 US firms between 2002 and 2018, we find that firms with ...
Maretno A. Harjoto, Indrarini Laksmana, Hoyoung Kim, Sergio Garcia‐Vega, Andreas G.F. Hoepner   +4 more
wiley   +1 more source

Time-lapse capacitive resistivity imaging: a new technology concept for the monitoring of permafrost [PDF]

, 2012
The British Geological Survey, in partnership with the Universities of Sussex and Bonn, is investigating and seeking to prove a new technology concept for the non-invasive volumetric imaging and routine temporal monitoring of the thermal state of ...
Haslam, Ed, Krautblatter, Michael, Kuras, Oliver, Lister, Bob, Meldrum, Phil, Murton, Julian, Wilkinson, Paul   +6 more
core  

Tracking tracer motion in a 4-D electrical resistivity tomography experiment [PDF]

, 2016
A new framework for automatically tracking subsurface tracers in electrical resistivity tomography (ERT) monitoring images is presented. Using computer vision and Bayesian inference techniques, in the form of a Kalman filter, the trajectory of a ...
Ahn, Andrieu, Audebert, Cardiff, Chambers, Chambers, Cox, Doetsch, Elwaseif, Elwaseif, Elwaseif, Gharibi, H. Nilsson, Hsu, Ishola, J. E. Chambers, Julier, Kalman, Kemna, Kuras, L. Bai, Liu, Ljung, Loke, Masreliez, Munkres, O. Kuras, P. B. Wilkinson, Rucker, Singha, Tuytelaars, W. O. C. Ward, Ward, Wilkinson, Yilmaz, Yu, Zhou   +36 more
core   +3 more sources