Relevant bibliographies by topics / Geo-electrical method

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Geo-electrical method'

Author: Grafiati
Published: 9 March 2023
Last updated: 6 September 2023

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Journal articles on the topic "Geo-electrical method"

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Meligonitis, R., D. Galanopoulos, T. Hasiotis, and A. Velegrakis. "GEO-ELECTRICAL MAPPING OF BEACHROCK IN VATERA BEACH, LESVOS." Bulletin of the Geological Society of Greece 50, no. 4 (July 28, 2017): 2323. http://dx.doi.org/10.12681/bgsg.14298.

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Beachrock (Br) is encountered on the coastal zones, playing an important but also complex role in their morphodynamic evolution. Although Br has been widely studied, two important issues require further investigation. The first concerns the importance of the interaction of the dynamically changing coastal environment with the temporal changing surficial and underground hydrogeological balance. The second has to do with the spatial distribution and the evolution of Br with respect to the specific “host” coastal zone geo environment. This paper designates the electrical resistivity method as a tool that contribute in arguing in the abovementioned issues. The research comprised subsurface measurements with the DC resistivity method along two profiles located on Vatera beach (Lesvos Island), where there is a significant Br outcrops. Twelve geoelectric soundings were carried out using the Axial Pole-Dipole electrode array. The electrical resistively measurements permitted an indirect estimation of TDS, which depicts the coastal interface of fresh water - sea water. The interpreted geoelectric model shows two thin formations attributed to Br. The first is the inland extension of the Br outcrop and the second it is believed to be a primary stage of Br build up.
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Reza, AHM Selim, Quamrul Hasan Mazumder, and Mushfique Ahmed. "Geo-electrical Resistivity Survey in the High Barind for the Delineation of Aquifer Geometry." Rajshahi University Journal of Science 39 (October 9, 2013): 27–37. http://dx.doi.org/10.3329/rujs.v39i0.16540.

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Geo-electrical resistivity techniques have been employed in the High Barind as a reconnaissance investigation for the subsurface lithology. Out of 13 upazillas, comprising the Barind tract, Sapahar and Porsha Upazillas, situated in the High Barind are badly affected by water shortage. Vertical electrical soundings (VES) were executed using Schlumberger configuration in different areas taking the current electrode separation up to 170 meters. Direct method technique was employed to evaluate the geo-electric layer such as resistivity and thickness of the discrete layers. The results of the resistivity survey give the subsurface information consisting of three to four layers. The results of geo-electric sounding have been compared with the geological section wherever available. DOI: http://dx.doi.org/10.3329/rujs.v39i0.16540 Rajshahi University J. of Sci. 39, 27-37 (2011)
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Sumintadireja, Prihadi. "Application of Geo-electrical Method in Preliminary Study for Earth Electrode Site Selection." IOP Conference Series: Earth and Environmental Science 1031, no. 1 (May 1, 2022): 012017. http://dx.doi.org/10.1088/1755-1315/1031/1/012017.

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Abstract Electrical power transmission is usually done as high voltage transmission for efficiency. For that purpose, effective grounding is necessary especially at the location of the power transmission control center. To obtain a good connection to the ground, very conductive or low resistivity soil should be present up to an appropriate depth at the earth electrode site. In this paper we present the results of the geoelectrical survey performed in a candidate site in the southern part of South Sumatra province, Indonesia. The objective of this preliminary study is to delineate the most appropriate location for the grounding electrodes. Data acquisition for 2D resistivity tomography was done along several lines crossing the survey area. Low resistivity layer of 10 Ohm.m or less up to 50 m depth was found at the north-western sector of the area.
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Sheglov, D. V., E. B. Gorokhov, V. A. Volodin, K. N. Astankova, and A. V. Latyshev. "A novel tip-induced local electrical decomposition method for thin GeO films nanostructuring." Nanotechnology 19, no. 24 (May 9, 2008): 245302. http://dx.doi.org/10.1088/0957-4484/19/24/245302.

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L, Lantu, D. A. Suriamihardja, A. M. Imran, and Tri Harianto. "Identification of Hydrothermal Aquifer Zone using Geo-Electrical Method in Kaloling Sinjai District." INDONESIAN JOURNAL OF APPLIED PHYSICS 5, no. 02 (December 20, 2015): 41. http://dx.doi.org/10.13057/ijap.v5i02.284.

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<p>Geothermal energy is one of the natural resources which emerged on the subsurface ofthe earth can be in a gaseous form (the vapor heat) or in the form of hydrothermal. The geothermal Panggo that located at watersheds of Kalamisu river, was one of the three sources of hydrothermal system existing in district Sinjai East. The existence of the geothermal system in this area will much give many advantagest if managed optimally. This research aims to map the spread of the hydrothermal aquifer zone at the subsurface and it potentials in Panggo village base on electrical properties. Methods used in this research were geo-electrical using Wenner and Schlumberger configurations.At all these research area, it is found the presence of zones which has low resistivity (&lt; 20 Ωm), and it is interpreted as the spread of hydrothermal zones. The hydrothermal system appears at subsurface allegedly caused by the geological fault of Kalamisu across this region.</p>
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Venderickx, K., and D. Van Gemert. "Anwendung einer geo-elektrischen Untersuchungsmethode für Mauerwerk im Rahmen eines Instandsetzungsvorhabens / Geo-Electrical Survey of Masonry for Restoration Projects." Restoration of Buildings and Monuments 6, no. 2 (April 1, 2000): 151–72. http://dx.doi.org/10.1515/rbm-2000-5462.

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Abstract Geo-electrical relative difference mapping is presented as a non-destructive evaluation technique for ancient masonry. The method allows to visualise the internal structure and condition of the masonry. The decision on the necessity and on the type and degree of consolidation or strengthening of the masonry wall can be based on the information, obtained from the mapping. The paper deals with the arrangement of the original measurements to make them suitable for engineering evaluation. Firstly a numerical model is presented to filter out the influence of geometrical boundary conditions: they distort the measurements, but are of no interest for the evaluation. Secondly the maps are calibrated, to eliminate the influence of measuring configuration, and moisture content. The calibration methods are presented, and applied on the resistivity measurements, executed at the restoration project of the building "Duke's Mills" (13th Century) at Aarschot (B).
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Adekoya, S. A., H. T. Oladunjoye, J. O. Coker, and O. A. Adenuga. "Identification of lithological units using geo-electrical method, Olabisi Onabanjo University Campus, Southwestern Nigeria." Scientia Africana 20, no. 1 (April 23, 2021): 171–82. http://dx.doi.org/10.4314/sa.v20i1.15.

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The study presented the results obtained from estimation of the depth to the bsement bedrock (overburden thickness) in Olabisi Onabanjo University, Ago-Iwoye using two configurations of electrical resistivity methods. The study was aimed to delineate the stratigraphy and thicknesses of the subsurface layer present in the study area for comprehensive study of the lithostratigraphic information of the area. Vertical Electrical Sounding (VES) and 2-D Horizontal Electrical Profiling (HEP) techniques were used to obtain 1-D and 2-D subsurface resistivity images of the study area. The VES data were plotted manually on the Bi-log graph. The curve obtained was partially curve – matched to obtain the layer resistivities and thicknesses for further iteration. The 2-D resistivity imaging data were analyzed and processed to obtain the inverted (true) resistivity image. From the results, five (5) VES type curves weredelineated. These includes H, HA, QH and KH type. The geoelectric sections and 2-D resistivity images showed three to four geoelectric layers. These layers are topsoil/laterite, weathered basement, partly weathered/fractured basement and fresh basement. The study showed that materials with resistivity values that ranged between 10 and 298 Ωm and 152 and 589 Ωm representing clayey weathered layer and partly weathered/fractured basement were delineated beneath some sounding points. The clayey and weathered layer are indicative of soil formations that are inimical to foundation of civil engineering structure. Likewise, they can serve as reservoir for groundwater potential (if the porosity and permeability are high). Due to this, detailed lithostratigraphic evaluation through petrophysical analysis is encouraged for the purpose of mapping and correlation of the rock units before embarking on any engineering construction in the study area. The study concludes in providing assistance to subsequent research on the stratigraphic related studies in the area. Keywords: Geo-electric , Stratigraphy, Lithology, Layer,
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Dey, Sudip, Chandrani Debbarma, Prasamita Sarkar, and Sushmita Paul. "Geo-electrical mapping and groundwater potential zoning in some selected pockets of Baromura hill of Tripura (India)." Journal of Applied and Natural Science 2, no. 2 (December 1, 2010): 207–12. http://dx.doi.org/10.31018/jans.v2i2.121.

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Baromura hill of Tripura is characterised by complex geology and very rugged landform. Water scarcity is a very general problem for the remote hilly villages of this area. Thus groundwater is considered as one of the most valuable natural resources in hilly villages of Baromura hill. The present study aims to prepare small area survey based geo-electrical mapping for understanding groundwater condition in some selected pockets of the study area. For that purpose one hill slope and one trough shaped low land (locally known as lunga) was selected. Soil resistivity meter was used for electrical survey. A circle plot was prepared for geo-electrical survey on the basis of which geo-electrical maps were drawn. In the studied hill slope morphology four sectors of ground water conditions were observed according to their electrical resistivity character namely shallowest zone, medium zone, deep zone and very deep zone. The trough shaped low land (lunga) is characterised by comparatively shallower condition of groundwater and it was divided into five classes namely near surface water, very shallow zone, shallow zone, medium shallow zone and medium zone. Though the depth of the water bearing strata cannot be detected by this method it is very suitable for understanding the groundwater potential zones in remote places like present study area.
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Su, Benyu, Rongfu Rao, Zhixiong Li, Lei Song, and Jianhua Yue. "Detecting Permafrost in Plateau and Mountainous Areas by Airborne Transient Electromagnetic Sensing." Electronics 9, no. 8 (July 30, 2020): 1229. http://dx.doi.org/10.3390/electronics9081229.

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Transportation has become a key bottleneck which restricts economic development in Western China. However, during the construction of the western railway, the permafrost problem has plagued railway construction on the Qinghai–Tibet Plateau, and has not yet been resolved. Accurately identifying permafrost by geophysical method is the most effective means to solve this problem. However, the mountainous and plateau terrain in Western China impose huge challenges in collecting geophysical data. To address this issue, this paper proposes an airborne transient electromagnetic method to collect geophysical electromagnetic data to identify permafrost in the mountains and plateaus of Western China. Based on Maxwell’s equations, the forward model of the airborne electromagnetic was derived, and the finite element method was used to calculate the two-dimensional (2D) space electromagnetic responses of different permafrost geo-electrical models. Furthermore, a coupling function was constructed to estimate the distribution of the resistivity of the permafrost by the least-squares fitting algorithm. Comparison between inversion resistivity distribution and the geo-electrical model showed that the proposed airborne transient electromagnetic method was valid for exploring the permafrost in the mountains and the Qinghai–Tibet Plateau in Western China.
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Abdullahi, N. "Geo-electrical Method Applied to Evaluation of Groundwater Potential and Aquifer Protective Capacity of Overburden Units." British Journal of Applied Science & Technology 4, no. 14 (January 10, 2014): 2024–37. http://dx.doi.org/10.9734/bjast/2014/8175.

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Dissertations / Theses on the topic "Geo-electrical method"

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Inzoli, S. "EXPERIMENTAL AND STATISTICAL METHODS TO IMPROVE THE RELIABILITY OF SPECTRAL INDUCED POLARIZATION TO INFER LITHO-TEXTURAL PROPERTIES OF ALLUVIAL SEDIMENTS." Doctoral thesis, Università degli Studi di Milano, 2016. http://hdl.handle.net/2434/360596.

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The characterization of the shallow subsurface constitutes a challenging issue in several applications of science and engineering. Among the other disciplines, hydrogeophysics deals with the use of geophysical methods for the exploration, management, and monitoring of soil and groundwater. One of the main topics is the study of the petrophysical relationships between electrical properties and hydraulic conductivity, mainly through the dependence of such physical parameters on textural properties. The general aim of this work consists in an investigation of porous materials typical of alluvial environments with spectral induced polarization (SIP) method. The driving question of the research is the feasibility of the use of SIP to characterize both the textural assemblage of the sediments and the fluid properties, in presence of interacting effects related to particles’ mineralogy, organic matter, sediments’ fabric, etc. The samples’ set is constituted by 19 unconsolidated materials collected in four sites of the Po plain south of Milano (Orio Litta, Senna Lodigiana, and Landriano) and west of Milano (Lozzolo), and saturated with seven NaCl-water solutions with electrical resistivity varying from 0.9 Ωm to 315 Ωm. The textural composition of the samples varies between slightly-sandy mud and gravelly sand, and the porosity of the repacked samples between 0.26 and 0.63. The measurements are executed with an experimental system designed and realized at the Laboratory of Hydrogeophysics of the Università degli Studi di Milano. The resistivity amplitude and phase spectra are firstly modelled with single-relaxation models (Cole-Cole and generalized Cole-Cole) in a bounded low-frequency interval. Besides a traditional optimization based on the root-mean-square error, an original multi-optimization approach with separated amplitude and phase errors is tested to obtain a set of optimal solutions and an uncertainty interval for each model parameter, in order to avoid the misinterpretation of petrophysical relationships with scarcely reliable parameters. Significant relationships are identified between DC-resistivity and water resistivity, and between chargeability and mud content. The 10-based logarithm of the relaxation time is inversely correlated with a characteristic diameter of the sample. On the other hand, a Debye-decomposition, multi-relaxation model is applied to identify several polarization processes, characterized by different relaxation times, over the whole frequency interval. In order to maintain the whole spectral information also in the search for electrical-textural relationships, a combination of cluster analysis (CA) and principal component analysis (PCA) is adopted. This constitutes a new approach to relate spectral electrical behaviour to litho-textural properties, avoiding the selection of individual parameters or individual investigation frequency. The CA permits to classify the samples on the basis of their electrical behaviour, and the PCA allows to interpret the variability within the database in terms of a series of parameters ordered by importance. A textural characterization (characteristic diameters, gravel and mud contents, uniformity coefficients) is associated to each cluster, based on the characteristics of the corresponding samples. Analogously, a typical range of water resistivity is attributed to each cluster. This association of variability ranges of electrical and sedimentological properties is then used to infer the sediments’ properties of samples external to the input database, with satisfactory results. The high flexibility of the hierarchical clustering also allows evaluating the differences in the inferred properties according to the number of selected clusters. Finally, some preliminary SIP tests are performed in the field; field and laboratory results are not completely comparable, due to the differences in porosity, water content, and scale of investigation. However, some peculiar characters of the laboratory spectra are recognized in the corresponding field spectra, thus supporting a future application of the proposed methodology to interpret the resistivity amplitude and phase distribution in the subsurface.
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BELGHAZAL, HAJAR. "Modelisation des aquiferes thermaux avec des methodes geophysiques integrees." Doctoral thesis, Università degli Studi di Cagliari, 2012. http://hdl.handle.net/11584/266084.

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Written work here was undertaken in order to investigate geothermal reservoirs associated with major faults, located in Caldes de Montbui, Spain, and Sardara, Sardinia. This thesis has two independent parts. The first is a theoretical profile of geophysical methods applied in this work. The second focuses on the development of a methodology for cross-validation between the electromagnetic model (EM), densities models, and models of resistivity. The development and application of this methodology were in two hydrothermal environments. To improve the knowledge of the structural context of thermal aquifers, different complementary techniques, audio magnetotelluric measures (AMT), Time Domain Electromagnetic (TDEM), Tomography of the electrical resistivity (ERT) and Gravimetry, were made around the two areas of applications. The important physical parameter identified by MT methods is the electrical resistivity, which is particularly sensitive to the presence and the mineralization of the water. The three-dimensional modeling of the data allowed us to define the depth and the extent of hydrothermal levels. Despite some limitations, the MT method has proved well suited to study geothermal sites. There are several geophysical methods that have become industry standards, but they should not be used in isolation. However, the resistivity method is very useful, because it is directly related to the characteristics of geothermal reservoirs. In addition, because of the terrain of most geothermal areas and the profound nature of the reservoir, the TDEM combined with MT resistivity methods are becoming the methods of choice for geothermal exploration.
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Wayal, Vaishali. "Geoelectrical Characterization for Relating Electrical Resistivity and Geotechnical Properties of Soils." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5845.

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This thesis proposes electrical resistivity measurement as a potential method to characterize different types of geomaterials under different environmental conditions. Electrical resistivity method is a promising non-destructive method for subsurface investigations compared to conventional geotechnical methods which pose difficulties in obtaining good quality undisturbed soil samples. This method provides a simple way to identify the variation of geotechnical properties as well as the presence of heterogeneity in the subsurface. Integration of electrical resistivity with geotechnical properties and understanding their interactions with each other allow characterizations of soils properties. The focus of the thesis is to relate the electrical behaviour of various types of soils to changes in their physical and mechanical properties. Controlled laboratory investigations are carried out on different types of soils such as fine sand, medium sand, coarse sand, bentonite, sand-bentonite mixes, mine tailing, red soil, kaolinite, black cotton soil and gravels. To study resistivity variation with physical properties, resistivity boxes are fabricated using acrylic sheet to facilitate four-electrode method of measurement. For investigating resistivity changes with engineering properties, the conventional triaxial setup is modified using two-electrode method, and the rigid wall falling head permeameter and oedometer are modulated using Wenner four array method. Prior to testing soil samples in fabricated apparatus, calibration studies are carried out using standard salt solution. The experimental investigations are compensated with model studies in an acrylic tank to detect the anisotropies and numerical tomography studies. The work in this thesis can be divided into four major parts. The first part of the thesis focuses on the assessment of sand-bentonite mix characteristics using the electrical resistivity method. Effects of particle size, surface conductivity, volumetric water content, dry density, void ratio, bentonite content, and temperature on electrical resistivity is investigated. In the second part of the thesis, an attempt is made to characterize mine tailings using electrical resistivity method through a series of laboratory experiments. Results from triaxial compression tests, permeability tests and electrical resistivity studies are coupled to establish correlations between electrical resistivity and engineering properties of tailings including permeability and shear strength. The third part of the thesis deals with the effectiveness of the electrical resistivity technique for geo-electrical characterization of compacted clays. A comprehensive study is carried out to investigate the variation in the electrical resistivity with change in mechanical characteristics of black cotton soil, bentonite, kaolinite clay, and red soil. Observations show that soils belonging to the same classification group can behave electrically different due to the differences in their mineralogical compositions. During consolidation, the changes in soil structure and expulsion of water voids alter the electrical pathways, which result in increased resistivity in case of red soil and reduced resistivity in case of black cotton soil. In the fourth part of the thesis, subsurface anisotropy is studied for sand, red soil, black cotton, and gravels using the square array method that allows measurement of resistivity along different azimuths. The electrical anisotropy of the clayey samples is studied with induced anisotropy in the form of cracks. Finally, azimuthal cross-square array resistivity soundings are carried out in field to investigate the features of anisotropy of the subsurface. Further, numerical investigations are carried out on simulated models of soil deposits to detect the inhomogeneities or anomalies in the subsurface using electrical resistivity distributions. Based on the studies carried out in this thesis, electrical resistivity technique is found to be very efficient for basic characterizations of all types of geomaterials, quick evaluation of their engineering properties with reasonable accuracy and anisotropy and fault detection in soil or rock layers. Results from this study have great significance for many applications like quick subsurface surveys of large areas, geotechnical characterizations of different materials including hazardous wastes, detection of leakage in landfills, detection of faults and fractures in rocks, identifying failure zones in slopes for early detection of landslides and detection of anisotropy in soil deposits.
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Book chapters on the topic "Geo-electrical method"

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Han, Dong, Yin Zhang, and Lidong Qiang. "GEO Debris Orbit Determination Method Based on Space-Based Optical Observation." In Lecture Notes in Electrical Engineering, 510–17. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4163-6_61.

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Wu, Shan, YanYu Liu, Li Liu, Rui Guo, Feng He, XiaoJie Li, and Hua Huang. "Precise Orbit Determination of GEO Satellite Based on Helmert Variance Component Estimation Method." In Lecture Notes in Electrical Engineering, 445–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29175-3_40.

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Tiancheng Wei, Wei, Yu Sun, and Eunkyoung Shim. "Progress of Recycled Polyester in Rheological Performance in Molding, and Economic Analysis of Recycled Fibers in Fashion and Textile Industry." In Next-Generation Textiles [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103864.

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In textiles, in particular wearable technology structured, battery-illuminated electronic fabrics are moving toward to both electrical and esthetic aspects of printed LED (PLED) textiles. It is on one dimension that have had questioned an economic resolution of extensional methods as for battery-charged interior materials, and also has gained a more general questions on how to develop its recycle both yarn and fiber as traditional raw goods in together with any recyclable electronic parts or graphene, carbon nanotube contained components with that textile materials. Furthermore, recyclable assembled electronic parts back to the renewable materials are continuous moving in the low-energy, high-reusable rate evaluation in the lifecycle assessment (LCA) of them. Specifically, during the de-sulfurization and decoloring in the post-production processing in the quick removal of active carbon fiber or nanoparticle coating on surface of fiber-porous geo-matrix could advance the renewing production efficiency. In assumption of low-energy and high-conductible transformation from off-market polyester with dyes or metallic yarns for polyester in e-textiles, recyclable conductive graphene/microfibers/composites are articulated, as far as industrial lifecycle management of braided, fibers, and ultra-high-density polyethylene has impeccable performance in the high mechanical property, medium rheological expansion over molding process, and high-yield strength as in the following sustainability in the wearable garment.
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Conference papers on the topic "Geo-electrical method"

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Rahmania, Rahmania, Febrian Dedi Sastrawan, and Meidi Arisalwadi. "Subsurface identification of landslide using geo-electrical method in Karang Joang, East Kalimantan." In THE 3RD INTERNATIONAL SEMINAR ON SCIENCE AND TECHNOLOGY 2021: The Path of Sustainable Development for a Better Life. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0133348.

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Salem, Abdel Hameed M., Magdi A. Mountasir, and Husam Abdussalam R. Shames. "Mapping of Sea Water Intrusion in the Western Libyan Coast Using Geo-electrical Method: Case Study." In The First Conference for Engineering Sciences and Technology. AIJR Publisher, 2018. http://dx.doi.org/10.21467/proceedings.4.8.

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Zakaria, Muhammad Faizal, Sari Bahagiarti Kusumayudha, Bambang Prastistho, Istiana Rahatmawati, and Tuti Setyaningrum. "Subsurface identification as preliminary survey of geo-ecotourism cave development using Electrical Tomography Resistivity (ERT) method in Tritis Cave and its surroundings." In 3RD INTERNATIONAL CONFERENCE ON EARTH SCIENCE, MINERAL, AND ENERGY. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0061476.

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Parhusip, Jaingot Anggiat, Agung Harijoko, Doni Prakasa Eka Putra, and Wiwit Suryanto. "Assessment of leachate infiltration from Piyungan landfill using electrical resistivity method." In 1ST INTERNATIONAL GEO-ELECTROMAGNETIC WORKSHOP (GEO-EM 2017): Proceedings of 1st International Geo-Electromagnetic Workshop. Author(s), 2017. http://dx.doi.org/10.1063/1.4990895.

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Maulinadya, S., M. Lutfi Ramadhan, N. Wening F., D. Pinehas, and Widodo. "Lembang fault plane identification using electrical resistivity method for disaster mitigation." In 1ST INTERNATIONAL GEO-ELECTROMAGNETIC WORKSHOP (GEO-EM 2017): Proceedings of 1st International Geo-Electromagnetic Workshop. Author(s), 2017. http://dx.doi.org/10.1063/1.4990936.

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Alam, Md Jobair Bin, Asif Ahmed, Prabesh Bhandari, and Naima Rahman. "Estimation of Unsaturated Design Parameters for Landfill Alternative Cover Using Electrical Resistivity Method." In Geo-Congress 2022. Reston, VA: American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784484043.001.

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Othmen, I. A. Ben, and M. Bouassida. "Detecting Defects in Geomembranes of Landfill Liner Systems—A Durable Electrical Method." In Geo-Frontiers Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41165(397)103.

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Bery, Andy Anderson, M. M. Nordiana, Y. C. Kiu, M. K. A. Nur Amalina, M. Saidin, A. Mohamamad-Afiq, and A. M. Nur-Amalina. "Joint-interpretation of 2-D electrical resistivity method and borehole data for subsurface lithology identification." In 1ST INTERNATIONAL GEO-ELECTROMAGNETIC WORKSHOP (GEO-EM 2017): Proceedings of 1st International Geo-Electromagnetic Workshop. Author(s), 2017. http://dx.doi.org/10.1063/1.4990905.

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Slob, E., E. Bloem. V. Post, and K. Groen. "Integrated use of geo-electrical methods for subsurface salinity distribution mapping." In 8th EEGS-ES Meeting. European Association of Geoscientists & Engineers, 2002. http://dx.doi.org/10.3997/2214-4609.201406268.

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Di Bella, Francis A., and Jonathan Gwiazda. "A Novel Thermally Induced Draft Air Power Generation System for Very Tall, Man-Made and Natural Geo-Physical Phenomena." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26098.

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It is well known that one of the necessities of designing very tall buildings is the need to control the internal and external airflows through the building. Presently, air flow control is required for maintaining proper ventilation for not only the occupants at 15–25 cfm per person (ref. 1) but also the electrical equipment generates heat at approx. 0.8 cfm/sq.ft. (ref. 2) for 2 to 3 W/ft2 (ref. 3). It is also well known that a 1,000+ ft. conduit (for example, an elevator shaft or an utility air chase within a skyscraper) extending into the atmosphere will have its top opening at lower atmospheric pressure and temperature than the opening at ground level. The difference is caused by the differences in the weight of the high air columns. For example, the air conditioning within the building includes considerable waste energy (albeit very low grade energy) from the building’s HVAC system. Increasing the air temperature, decreases the density of the air column achieves the desired effect: that of establishing more of a pressure differential across the inlet and outlet of the pneumatic conduit. The addition of heat certainly is energy consumption unless, as the disclosure claim states, it can be recovered from the building’s otherwise wasted energy sources. An alternative method for establishing a significant pressure differential would be to use a rather large pneumatic-ejector device on the top of the building that utilizes the Bernoulli effect to draw air upward, through the air conduit, using the high velocity air streams that are prevalent at those altitudes. If a pressure differential can be maintained then a continuous airflow (cfm) will be induced through such a conduit. A continuous air flow rate, and not one that is effected by land based obstacles or the sun’s heating and cooling of low level air masses, is ideal for generating a consistent level of electric power. This phenomenon has not been utilized for power generation. For a skyscraper, the conduits are ready-made: the under-utilized elevator columns or air chases. For this study the power generation from Pneumatic Column Power Recovery can also include free standing towers that can collect solar energy or even naturally occurring structures such as very deep mountainous chasms that could serve as a natural air draft. This paper will present an analysis of using wind-columns that are over 1,000 ft. tall together to generate power with state-of-the art wind turbine generators. The paper will conclude with a very bold, some would say: fanciful suggestion, that such power generation opportunities are available in enormous magnitudes if the formulations presented here are extended to man-made and natural geo-physical phenomenon that can be gargantuan in stature and thus produces a proportional increase in power recovery opportunity.
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Reports on the topic "Geo-electrical method"

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JODEIRI, Behshad, Ali MORADZADEH, Faramarz DOULATI ARDEJANI, and Hamid Reza RAMAZI. Investigation of Pollutions Resulted from Acid Mine Drainage Using VLF and Geo-Electrical Methods - A Case Study. Cogeo@oeaw-giscience, September 2011. http://dx.doi.org/10.5242/iamg.2011.0291.

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