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Electromagnetic Emission Associated with Fracture of Rock Samples
AbstractThe article presents the fracture test data of rock samples with the porphyroblastic, granoblastic lepidoblastic and laminated structure. The...
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Development of Data Acquisition Software for Electromagnetic Instruments in Landslide Detection
Rapid societal development and increased engineering construction have exacerbated the disturbance of the geological environment. The impact of...
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Experimental study on transient electromagnetic conductivity logging in cased well
A cased well model consists of a coaxial tank and casing, which houses coaxially installed transmitting and receiving coils. The transmitting coil is...
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Earth’s Ionosphere and Electromagnetic Signal Propagation
This chapter provides a comprehensive overview of the Earth’s ionosphere and its influence on electromagnetic signal propagation, particularly...
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Modern Methods of Airborne Electromagnetic Survey
AbstractAirborne electromagnetic methods are characterized in detail. A classification of airborne electromagnetic systems is presented. Modern...
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Exploring Electromagnetic Wave Propagation Through the Ionosphere Over Seismic Active Zones
This study presents an analytical solution for the electric current formation in the lower ionosphere as a result of charged aerosols being ejected...
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Design and Realization of Electromagnetic Instrument Data Acquisition Circuit for Landslide Detection
With the rapid development of human society and the surge of engineering construction, the disturbance of the geological environment has grown...
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Evaluation of time history distribution characteristics of lightning electromagnetic field in heterogeneous soil
Existing underground lightning electromagnetic field predictive methods are only relevant to conductivity distributions that are homogeneous or...
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Advancements in Controlled Source Electromagnetic Methods for Prospecting Unconventional Hydrocarbon Resources in China
Globally, unconventional hydrocarbons, known for the symbiosis of their hydrocarbon source and reservoir, pose significant seismic exploration...
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Evaluation of internal void related defects in reinforced concrete slab using electromagnetic wave properties
This study aims to develop a damage-detection algorithm based on the electromagnetic wave properties inside a reinforced concrete structure. The...
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Meshing strategies for 3d geo-electromagnetic modeling in the presence of metallic infrastructure
In 3D geo-electromagnetic modeling, an adequate discretisation of the modeling domain is crucial to obtain accurate forward responses and reliable...
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On the Acoustic and Electromagnetic Emissions of a Charged Oscillating Droplet
AbstractIn this paper we use theoretical methods of classical mathematical physics to study acoustic and electromagnetic radiation generated by...
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Identifying and localizing of seismogenic electromagnetic anomalies from data observed by permanent MT stations
In this research, an arbitrarily oriented electric dipole at subsurface is used to simulate Seismogenic Electromagnetic (SEM) radiation emanating...
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Theoretical Simulation and Application of High Frequency Electromagnetic Wave Propagation Logging
High frequency electromagnetic wave propagation logging technology is an important method in geophysical exploration. Since the dielectric constant...
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Numerical simulation of the electromagnetic field in layered media applicable to high-frequency scenarios
In geophysical exploration, the expression of the electromagnetic field in homogeneous layered media involves Hankel integrals, and the kernel...
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A Method of Surface Electromagnetic Wave Transmission Across Discontinuous Structures in Wellbore Environment
Downhole signal wireless transmission based on surface electromagnetic wave is an important research field of modern fast drilling and production...
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Electromagnetic ULF Fields from an Underground Seismic Source on the Earth Surface and in the Ionosphere
Abstract —A theoretical formalism has been developed to calculate the electromagnetic fields generated in the atmosphere–ionosphere system by a...
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Transient Electromagnetic Smoke Ring Due to a Grounded-Wire Source
The concept of a “smoke ring” in electromagnetic fields can be used to describe the spatial distribution and diffusion of electromagnetic fields with...
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Detection method of coal-rock interface and low-resistivity anomalous body based on azimuth electromagnetic wave
A geological model related to coal-rock electromagnetic parameters is constructed in this work using coal-rock media and coal-rock interfaces as the...
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A New Fracturing Result Evaluation Method Based on Borehole Time-Domain Electromagnetic
With the extension of resource exploration to unconventional fields, fracturing reconstruction has become an important method to increase reservoir...