Results 121 to 130 of about 6,449,335 (238)

Electrical Resistance Tomography as a Non-Destructive Technique for Heartwood Detection and Quantification in Standing Red Sanders (Pterocarpus santalinus L.f.) Trees

NDT - Journal of Non-Destructive Testing
Accurate, simple, cost-effective, and non-destructive estimation of heartwood content is essential for the sustainable management and commercial valuation of Pterocarpus santalinus L.f.
Baragur Neelappa Divakara, Hulikal Krishnegowda Sheela, Manjunath Prashanth   +2 more
doaj   +1 more source

Iron and Other Metal Ions in Human Health and Disease

MedComm, Volume 7, Issue 10, October 2026.
Iron, copper, zinc, and calcium orchestrate cellular function through distinct yet cooperative mechanisms: redox‐active iron and copper cycle between oxidation states to act as Fenton catalysts and electron carriers in oxidative phosphorylation (OXPHOS); redox‐inert zinc serves as a structural component of zinc‐finger proteins and a catalytic cofactor ...
Xiaofeng Dai, Jitian Li
wiley   +1 more source

Determination Nickel Laterite Profile using Correlation of ERT (Electrical Resistivity Tomography and Drill Core Data [PDF]

, 2014
In mineral exploration especially nickel laterite, required a survey technique that could describe subsurface conditions.The method used in this study is ERT (Electrical Resistivity Tomography) with Gradient array.
aswad, sabrianto, Ashillah Haeruddin, andi, ., Syamsuddin, Massinai, Muh. Altin, S. Hadi, Guntur   +4 more
core  

Internal Structure, Kinematics, and Prehistory of Frozen Debris Lobe‐A (FDL‐A), Brooks Range, Alaska

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 645-667, October/December 2026.
ABSTRACT Frozen Debris Lobe‐A (FDL‐A)—one of hundreds of FDLs in the Brooks Range of northern Alaska—is a slow‐moving landslide in permafrost that has been the subject of research since 2008 due to its close proximity to the Dalton Highway. Here, we synthesize more than a decade's worth of climate and surface measurements of monitored FDLs, and the ...
Margaret M. Darrow, Esther L. Babcock, Ben A. Leshchinsky   +2 more
wiley   +1 more source

Challenges in the Detection of Water-Filled Cavities in Karst Environments Using Electrical Resistivity Tomography

Geosciences
Electrical resistivity tomography (ERT) is one of the most commonly used geophysical methods for imaging the distribution of electrical resistivity in the subsurface. It is often employed to characterise heterogeneity in karst regions and locate cavities
Sergio Negri, Dora Francesca Barbolla
doaj   +1 more source

This thesis will focus on the 3D collecting of ERT data related to a rockglacier, with applications in geohazards and landslide studies. The research will involve advanced techniques in electrical resistivity tomography to analyse subsurface conditions, contributing to our understanding of periglacial dynamics and the associated risks.

reservedThis thesis will focus on the 3D collecting of ERT data related to a rockglacier, with applications in geohazards and landslide studies. The research will involve advanced techniques in electrical resistivity tomography to analyse subsurface ...
RAHIMINADI, RAMBOD
core  

Internal Permafrost Structure of Geomorphologically Distinct Palsas in Northern Sweden Revealed by Quasi‐3D ERT

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 668-681, October/December 2026.
ABSTRACT Permafrost in northern peatlands occurs within individual palsas or extensive peat plateaus and controls local carbon storage. These permafrost landforms are complex, and their internal structure remains poorly understood. We used quasi‐3D electrical resistivity tomography (ERT) measurements, supported by UAV‐LiDAR topography, frost probing ...
Cas Renette, Mirko Pavoni, Mauricio Fuentes, Erik Sturkell, Mats Olvmo, Heather Reese   +5 more
wiley   +1 more source

Electrical Resistivity Tomography for the 2D and 3D Investigation of Pingos and Permafrost Mounds in Northern Canada's Mountain and Coastland Areas

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 804-829, October/December 2026.
ABSTRACT Pingos and related permafrost mounds are widespread periglacial landforms in Arctic environments that are ice‐rich on the one hand and contain taliks on the other, making them vulnerable to climate change. So far, the interior, geophysical characteristics, and distribution of ground ice within these dome‐ or cone‐shaped features have not been ...
Tim Wiegand, Julius Kunz, Christof Kneisel   +2 more
wiley   +1 more source

Groundwater redox conditions and conductivity in a contaminant plume from geoelectrical investigations [PDF]

Hydrology and Earth System Sciences, 2004
Accurate mapping of the electrical conductivity and of the redox potential of the groundwater is important in delineating the shape of a contaminant plume.
V. Naudet, V. Naudet, A. Revil, A. Revil, E. Rizzo, E. Rizzo, J.-Y. Bottero, J.-Y. Bottero, P. Bégassat, P. Bégassat   +9 more
doaj  

Mechanisms of Ultrasound‐Assisted In Situ Chemical Oxidation for Groundwater Remediation: A Laboratory‐Scale Column Study

Water Resources Research, Volume 62, Issue 10, October 2026.
Abstract Groundwater contamination has become an increasingly critical environmental concern worldwide. In situ chemical oxidation (ISCO) is considered a promising technology for groundwater remediation, but its performance in heterogeneous aquifers is often constrained by mass‐transfer limitations in low‐permeability zones, leading to suboptimal ...
Liu Yang, Yan Zhao, Siyuan Li, Mingxiu Ji, Ruipeng Dong, Xueyao Zhang   +5 more
wiley   +1 more source