— Volume resistivity of basalt glass samples with different ZnO doping Full size image Analysis and discussion In this study Raman spectroscopy shows that ZnO has a strong influence on the glass structure which in turn affects the dielectric constant and dielectric loss of the glass The Raman characterization results were analyzed in
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— The modelled resistivity of the lava tunnel was obtained in proximity to 1000 Ω m with a better characterization being possible at resistivity exceeding 8000 Ω m in 200 Ω m of Fahda Vesicular
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— Volume resistivity of basalt glass samples with different ZnO doping Full size image Analysis and discussion In this study Raman spectroscopy shows that ZnO has a strong influence on the glass structure which in turn affects the dielectric constant and dielectric loss of the glass The Raman characterization results were analyzed in
In this paper we studied the temperature dependence of the electrical resistivity of basalt and granite samples The electrical resistivity of these samples were measured in the temperature range from RT to 1000 K It is observed that The electrical resistivity of all investigated samples was decreased with the increase of temperature The results
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article{osti 7369540 title = {Resistivity logging of fractured basalt} author = {Stefansson V and Axelsson G and Sigurdsson O} abstractNote = {A lumped double porosity model was studied in order to estimate the effect of fractures on resistivity porosity relations It is found that the relationship between resistivity and porosity for fractured rock is in general
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— In this study the most prominent fields of application and engineering solutions for Hybrid CMC are reviewed and the results of the thermal resistivity analysis effectuated on basalt fiber reinforced SiOC samples are presented This study consisted of several air exposures between 1 h and 50 h and temperatures in the range of 650 °C to
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— The 2D electrical survey 25 m of electrode spacing and eight investigation levels was conducted close to productive wells that reach the basalt Fig 13 The resistivity model is presented in Fig 14 A conductive layer is observed interpreted as the sandstone blue contour filling < 50 Ω m over the basalt marked by the dashed line
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— The major exploited aquifers in Azraq basin are the alluvial deposits the fractured basalt rocks mainly in the northern part of the basin and the chert limestone of the Rijam aquifer These groups of aquifers are known as the Shallow Aquifer Complex The basalt and chert limestone aquifers in this complex are known as good aquifers
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— Since resistivity can be used to evaluate the performance of concrete the resistivity of basalt polypropylene fiber reinforced concrete BPFRC was investigated in this study Various
Yêu cầu trực tuyến →— The Columbia River Basalt Group CRBG in the northwestern is up to 5 km thick and covers over 168 000 km 2 Resistivity based image logs provide a rich data set that allows interpretation of dip and azimuth of basalt cooling features tectonic fractures and stratigraphic and structural dip as well as basalt lithofacies textures that
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Basalt Ridge Testing Laboratory is well equipped to characterize the thermal conductivity of many porous solid and liquid materials Our standard thermal conductivity testing conforms to either ASTM D5334 or IEEE 442 standards for characterization of thermal Our test methods can characterize a wide thermal conductivity range from highly
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— Resistivity of Earth Materials Although some native metals and graphite conduct electricity most rock forming minerals are electrical insulators Measured resistivities in Earth materials are primarily controlled by the movement of charged ions in pore fluids Basalt 10 1 x 10^7; Limestones 50 1 x 10^7; Sandstones 1 1 x 10^8
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— The electrical resistivity studies conducted by Naskar et al 2002 over the exposed formations to evaluate the resistivity signatures of the different formations have shown the overlapping resistivity values of Deccan basalt 50 300 and Gondwana/Mesozoic 30 130 formations This overlapping resistivity
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