Mostrando 1,301 - 1,320 Resultados de 10,994 Para Buscar '"rock ', tiempo de consulta: 0.23s Limitar resultados
  1. 1301
    “…The goal of this study was to examine the existence and nature of linkages among chemosynthesis-based ecosystems by deploying organic fall mimics (bone and wood) alongside defaunated carbonate rocks within high and lesser levels of seepage activity for 7.4 years. …”
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  2. 1302
    por Kan, Wenguang, Yang, Zailin, Sun, Menghan
    Publicado 2022
    “…The multi-electrode resistivity method can visually reflect the interface between saturated sand and semi-diagenetic rocks. Dividing the interface between saturated sand and semi-diagenetic rocks is advantageous as the morphology of the resistivity curve has a significant curvature change. …”
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  3. 1303
    “…The prefabricated artificial filled jointed rock specimens are impacted by a self-made drop hammer impact device for many times, and the specimens with different degrees of cumulative damage characteristics are obtained. …”
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  4. 1304
    “…As one typical heterogeneous material, the heterogeneity of rock micro parameters has an important effect on its macro mechanical behavior. …”
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  5. 1305
    “…Al@TCAP increased the expression of Planctomycetes and Actinobacteria, while volcanic rock increased and decreased the expression of Planctomycetes and Proteobacteria. …”
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  6. 1306
    “…[Image: see text] The long reaction time and uncontrollable reaction process of the swelling agent in the process of rock breaking by static crushing agent lead to unsatisfactory efficiency and effect of rock breaking. …”
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  7. 1307
    “…Understanding the shear strength degradation mechanism of a rock mass joint surface under cyclic shear load and determining a corresponding analytical model is an important foundation for accurately evaluating the safety of rock mass engineering under seismic loads. …”
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  8. 1308
    “…Intelligent monitoring and early warning of rock mass failure is vital. To realize the early intelligent identification of dynamic fractures in the failure process of complex fractured rocks, 3D printing of the fracture network model was used to produce rock-like specimens containing 20 random joints. …”
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  9. 1309
    “…In this study, a measurement system for gas generation of coal-rock under temperature–pressure coupling was developed by adding gas extraction, collection, and flow-monitoring devices to the original stainless-steel liquid seepage pipeline of an MTS-815 rock triaxial testing machine, which can be used to study the production mechanism of coalbed methane in a real geological environment. …”
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  10. 1310
    “…The results show that as the advancing distance increased, the fracture density and fracture height increased continuously due to deformation and failure of the overlying rock. The displacement of the overlying rock initially increased and then decreased, and the displacement of the floor rock initially decreased and then increased. …”
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  11. 1311
    “…This study discussed a novel self-centering rocking (SCR) bridge system equipped with shape memory alloy (SMA)-based piers, with a particular focus on the benefit of the SCR bridge system in a life-cycle context. …”
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  12. 1312
    por Li, Guang, Lu, Rong, Ma, Fengshan, Guo, Jie
    Publicado 2022
    “…In mining engineering, crack distribution has a considerable influence on the mechanical behavior and stability of the surrounding rock mass. Using the granite of the Sanshandao gold mine as experimental samples, the deformation and failure of fractured rock were analyzed based on a rock uniaxial compression test with acoustic emission monitoring. …”
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  13. 1313
  14. 1314
  15. 1315
    “…In this study, DSR and BBR were used to determine the rheological properties of Qingchuan rock-modified asphalt (QRMA) and Qingchuan rock–SBS-modified asphalt (QRA-SBSMA), and the optimum blending amount of rock asphalt was determined based on the PG classification results. …”
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  16. 1316
    “…ML models were used to correlate the breakdown pressure of the rock as a function of fracturing experimental conditions and rock properties. …”
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  17. 1317
    “…The main objectives of this strategy consisted of (1) studying the likely relationship between radon concentration and lithology of the rock matrix through the lithological data of 247 samples from volcanic rocks of the Canary Islands and (2) implementing a series of monitoring sites in the form of boreholes and wells to study the evolution of radon-in-air activity on a daily to yearly timescale.…”
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  18. 1318
    por Fereidooni, Davood, Sousa, Luís
    Publicado 2022
    “…Rock is used as a foundation and building material in many engineering projects and it is important to determine/predict its engineering properties before project construction. …”
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  19. 1319
    “…The regression analysis method is being widely adopted to analyse the tunnel strain, most of which ignore the strain-softening effect of the rock mass and fail to consider the influence of support pressure, initial stress state, and rock mass strength classification in one fitting equation. …”
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  20. 1320
    “…The geometric morphology characteristics of a carbonate rock fracture surface were studied together with an artificial rock fracture surface formed by triaxial mechanics experiments. …”
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