Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 38 for “"geological formations"”.
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Hydrogen Interactions in the Subsurface Geological Formations: Molecular and Biogeochemical Perspectives
… to support a sustainable energy transition. Geological formations, such as depleted hydrocarbon reservoirs and saline aquifers, offer promising solutions for long-term storage, while naturally occurring hydrogen provides a potential continuous supply. However, a limited understanding of …
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Development of solvent for CO2 capture for utilization in concrete and storage in geological formations
… concrete and the potential permanent storage in geological formations. Initial solvent screening and the selection included 2M aqueous solvents of KOH, NaOH, K2CO3, Na2CO3, sodium and potassium salts of glycine and lysine at 40oC and 20% CO2 balance nitrogen. The performance of the solvents was …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΗ ΕΡΕΥΝΑ ΤΟΥ ΛΕΚΑΝΟΠΕΔΙΟΥ ΤΩΝ ΑΘΗΝΩΝ
… STRUCTURAL ARRANGEMENT AND THE LITHOLOGY OF THE GEOLOGICAL FORMATIONS WHICH CONSTITUTE THE ATHENS BASIN EXAMINED. THE CHARACTER OF ROCKS AND SOILS INCLUDING THEIR DISTRIBUTION, PHYSICAL STATE AND THEIR PHYSICAL AND MECHANICAL PROPERTIES ARE ALSO DETERMINED. FOR THIS PURPOSE A LARGE NUMBER OF …
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Soil Slope Failure Investigation Management Systems
… in combination with other factors such as geological formations, slope angle and groundwater conditions. These factors contribute towards causing slope failures that are hazards to highway structures and the traveling public. Consequently, it is crucial to have a soil slope failure …
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The deepest paradox : seafloor mining and its future
… thousands of meters below the water's surface in geological formations such as polymetallic nodules, ferromanganese crusts, and seafloor massive sulfides is well-established, the biological and ecological profiles of these sites are still actively developing. As a result, the two scientific …
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Evaluation of geological CO 2 storage involving adsorption on mining wastes from coal processing
… CO2 storage are being pursued. Predominantly geological formations are regarded as potential CO2 storage sites, but coal mines are also being discussed regarding their applicability for CO2 storage. In mining regions world-wide, ground subsidence originating from extensive mining is a serious …
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Geological Control of Floristic Composition in Amazonian Forests
… cation concentrations and an erosion-generated geological boundary. On the basis of this finding, we assembled continent-scale satellite image mosaics, and used these to search for additional discontinuities in western Amazonia. These mosaics indicate a floristic and geological discontinuity of …
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State of roads : public works as research, India circa 1960
… topography of its land, its ancient and tenuous geological formations, the stretching and creeping of its mountains, and other vagaries of nature. This had to be done within the framework of a nation violently birthed from two hundred years of colonial rule, its limited economic resources, cement …
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A Pre-Feasibility Assessment of Geologic CO₂ Storage, Offshore Corpus Christi
… facilities and store the CO2 in deep geological formations in perpetuity. The Gulf of Mexico is a region of interest for CCS development, as it contains laterally extensive reservoir-seal systems comprising Miocene sands with high porosity and permeability that are overlain by low …
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Propriedades de solos vermelhos do Estado da Paraíba
… study of three soils selected from the geological formations of Barreiras and Serra dos Martins is presented. From the field study, a theory of formation for the three deposits is formulated and later substantiated by the laboratory study on the properties of these soils. The laboratory …
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Analytical modeling of CO₂ migration in saline aquifers for geological CO₂ storage
Injection of carbon dioxide into geological formations for long-term storage is widely regarded as a promising tool for reducing global atmospheric CO₂ emissions. Given the environmental and health risks associated with leakage of CO₂ from such a storage site, it is critical to ensure that injected …
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Automatic model construction with Gaussian processes
… structure in domains such as time series, geological formations, and physical dynamics. These models, based on Gaussian processes, can capture many types of statistical structure, such as periodicity, changepoints, additivity, and symmetries. Such structure can be encoded through kernels, …
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Geomorphic Concrete : Material and fabrication strategies for heterogeneous concrete morphology
… construction methodology closely aligned with geological formation process by incorporating natural forces as collaborators in concrete fabrication. Geomorphic concrete is an alternate paradigm of material-based design and construction methodology achieved by exploiting the variation in …
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Interface pinning of CO₂ gravity currents
… power plants and injected deep underground in geological formations like saline aquifers for long-term storage. Given the large scale of CCS required to significantly reduce anthropogenic CO₂ emissions into the atmosphere, it is critical to understand the migration of CO₂ after injection, so …
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Well-log based determination of rock thermal conductivity in the North German Basin
… Knowledge of the thermal conductivity of geological formations and its spatial variations is essential, not only for quantifying basin evolution and hydrocarbon maturation processes, but also for understanding geothermal conditions in a geological setting. In conjunction with the …
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Sedimentological and mineralogical characteristics of Limpopo River Sand at Beit Bridge Border between South Africa and Zimbabwe
… specific elements and compounds, illuminating geological history. The results showed that sand was the most dominant component across all stations, with varying proportions of fine silt and gravel. XRD and microscopic analysis revealed minerals such as quartz, plagioclase, microcline, …
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Comprehensive analysis of an ongoing CO2 storage project
… a major challenge. CO2 sequestration in the geological formations has been identified as an alternative to counter the impact of the emissions. CO2 sequestration refers to the capture and long term storage of CO2.;In order to properly asses the viability of CO2 sequestration in a geological …
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Quantifying non-Fickian transport in porous and fractured media using fractional-calculus based stochastic models
… dynamics widely observed in heterogeneous geological media deviating significantly from that described by the classical advection dispersion equation (ADE). The ADE describes the Fickian-type of transport, with symmetric snapshots like the Gaussian distribution in space (Berkowitz et al., …
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Modelling and CFD simulation of a fluidized bed process for the capture of C02 from fossil fuel combustion sources
… sequestration of carbon dioxide and storage in geological formations, in the ocean or for use in industrial processes. CO2 capture from combustion exhaust gases by mineral carbonation using a fluidised bed is studied in this project. CFD modelling has been used to study the efficiency of CO2 …
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The liability of carbon dioxide shortage
… examines the liability of storing CO2 in geological formations. There is a potential tortious and contractual liability exposure if stored CO2 is not fully contained by the geological formation. Using a combination of case study and survey methods, this research examines the risks …
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