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Geoelectric field response characteristics analysis of floor roadway surrounding rock fracture caused due to coal seam mining
Published 2021-11-01“…During this process, the excitation current dropped by 4–12 mA, and the self-potential pulse fluctuation amplitude was greater than 400 mV; (3) from the beginning of the monitoring process to the end of the monitoring, the self-potential in the damaged area decreased by 250 mV, and the self-potential in the mudstone layer below the damaged area increased by 140 mV. The electrons released into the environment around the damaged rock mass during the severe impact phase of mining did not flow back to the damaged area, and the positive charge in the damaged rock mass gradually accumulated in the complete rock mass in units of rock strata; (4) when superimposed and supported by anchor rod and cables, the bearing capacity of the shallow bearing circle of the roadway was enhanced, and the excitation current presented a step-like overall increase during mining of the working face with a small drop after every significant increase. …”
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542
Effect of Geochemical Reactivity on ScCO<sub>2</sub>–Brine–Rock Capillary Displacement: Implications for Carbon Geostorage
Published 2023-10-01“…The rocks studied here maintained their water-wettability at elevated conditions and after geochemical reactivity. …”
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Rock alteration at the post-Variscan nonconformity: implications for Carboniferous–Permian surface weathering versus burial diagenesis and paleoclimate evaluation
Published 2021-05-01“…In this study, the petrological, mineralogical and geochemical characteristics of Variscan basement rock as well as its overlying Permian volcano-sedimentary succession from a drill core in the Sprendlinger Horst, Germany, are analyzed by means of polarization microscopy, and environmental scanning electron microscope, X-Ray diffraction, X-ray fluorescence and inductively coupled plasma mass spectrometry analyses. …”
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545
Application of Electron Backscatter Diffraction to Calcite-Twinning Paleopiezometry
Published 2022-05-01Get full text
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546
ROCK, JUVENTUDE E REBELDIA: UM ESTUDO DO ÁLBUM CABEÇA DINOSSAURO -1986. (Dossiê: Música, Linguagem e Sociedade)
Published 2016-09-01“…eoi/doi Deposit-Electronic Object Identifier http://eoi.citefactor.org/10.11248/ehum.v9i1.1875 Resumo: O presente artigo tem como pretensão analisar o álbum Cabeça Dinossauro (1986), da banda paulista Titãs. …”
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547
Pigmentos de pinturas rupestres pré-históricas do sítio Letreiro do Quinto, Pedro II, Piauí, Brasil
Published 2011-01-01“…The Letreiro do Quinto rock shelter is located in the rural area of the city of Pedro II, Piauí, Brazil. …”
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548
The Adsorptive and Photocatalytic Performance of Granite and Basalt Waste in the Discoloration of Basic Dye
Published 2022-09-01“…The rock powders were characterized with scanning electron microscopy associated with energy-dispersive spectroscopy, photoacoustic spectroscopy, N<sub>2</sub> physisorption and X-ray diffraction, the latter confirming the abundant presence of silica in the four materials studied. …”
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549
Weathering features of a remineralizer in soil under different land uses
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550
Development of Geopolymers from Phosphate By-Products for Thermal Insulation Applications
Published 2023-11-01“…Phosphate mining generates large quantities of waste rock and sludge annually, resulting in significant environmental issues. …”
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551
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New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)
Published 2018-12-01“…About 40 samples were collected from the host rocks, veins and quartz veins in the Uyanga ore knot district in 2016. …”
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553
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Study of electronic ceramics in led devices and energy saving
Published 2014“…This report aims to study electronic ceramics in Light Emitting Diode and energy saving. …”
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Final Year Project (FYP) -
555
Electron sin resonance (ESR) dating of Quaternary materials
Published 2008-08-01Get full text
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556
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Analytical Model of Piezoresistivity for an Inner-Adhesive-Type Carbon Fibre Reinforced Plastic Tunnel Reinforcement
Published 2022-06-01Subjects: Get full text
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A <i>π–π</i> Stacked High-Performance Organic Anode for Durable Rocking-Chair Zinc-Ion Battery
Published 2023-06-01“…However, issues of inferior capacities and poor rate performance owing to limited inherent electronic conductivity and severe dissolution still persist. …”
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560
Metamorphic olivine in pictritic metavolcanics from southern Finland
Published 1990-12-01Subjects: “…metavolcanic rocks…”
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