Showing 2,561 - 2,580 results of 3,009 for search '"Geology"', query time: 0.07s Refine Results
  1. 2561

    Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield by Yue Zhang, You-liang Ji, Hui-jian Wen, Shi-zhong Ma, Dong-lai Bai, Bin-chi Zhang, Ben-kang Xing

    Published 2020-01-01
    “…Four types of flow units (strong-current limiting, medium-current limiting, weak-current limiting, and none-current limiting) in the point bar sand body were identified, whereas one type, unshielded unit, was identified in the narrow channel. Geological parameters, such as porosity, permeability, and pore-throat radius (r50), were optimized to quantitatively characterize these various flow units. …”
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  2. 2562

    The Mechanical Criterion of Activation and Instability of Normal Fault Induced by the Movement of Key Stratum and Its Disaster-Causing Mechanism of Rockburst in the Hanging Wall Mi... by Lyu Pengfei, Lu Jiabin, Wang Eryu, Chen Xuehua

    Published 2021-01-01
    “…Coal mine rockburst is closely related to the complex geological structure. Understanding the criterion of the fault activation instability and the disaster-causing mechanism of rockburst under the influence of mining is the theoretical premise and important guarantee of safe and efficient coal mining. …”
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  3. 2563

    Geochemical Characteristics of Crude Oil in Member 7 of Yanchang Formation in Yanchang Oilfield by Wenming Li, Zhendong Gao, Yongdong Wang, Jingyang Pu, Hanlie Cheng, Fahim Theon

    Published 2022-01-01
    “…The power and diversion system of the Yanchang Formation in Yanchang Oilfield are studied, and the main factors of formation and flow of deep reservoirs in the Yanchang Formation are explored, as well as the regional geological survey of the Yanchang Formation No. 7 in Yanchang Oilfield. …”
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    Article
  4. 2564

    Land conversions not climate effects are the dominant indirect consequence of sun-driven CO2 capture, conversion, and sequestration by Moritz Adam, Thomas Kleinen, Matthias M May, Kira Rehfeld

    Published 2025-01-01
    “…Large-scale direct air capture combined with injecting CO _2 into geological formations could retain carbon long-term, but demands a substantial amount of energy, pipeline infrastructure, and suitable sites for gaseous storage. …”
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  5. 2565

    Subsidence Control Design Method and Application to Backfill-Strip Mining Technology by Xiaojun Zhu, Feng Zha, Guangli Guo, Pengfei Zhang, Hua Cheng, Hui Liu, Xiaoyu Yang

    Published 2021-01-01
    “…Intensive and massive coal mining causes a series of geological hazards and environmental problems, especially surface subsidence. …”
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  6. 2566

    Numerical Modeling and Stability Analysis of Surrounding Rock of Yuanjue Cave by Zhigang Meng, Fangzheng Fan, Xuebin Cui, Shu Tao, Yi Cao

    Published 2021-01-01
    “…In order to fully evaluate the stability of the rock mass around the cliff where Yuanjue Cave is located, a three-dimensional geological model of the surrounding rock of Yuanjue Cave was established by using FLAC3D software, combined with three-dimensional scanning, fissure investigation, and indoor tests. …”
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  7. 2567

    The Key Stratum Structure Morphology of Longwall Mechanized Top Coal Caving Mining in Extra-Thick Coal Seams: A Typical Case Study by Fulian He, Xiaobin Li, Wenrui He, Yongqiang Zhao, Zhuhe Xu, Quansheng Li

    Published 2020-01-01
    “…Based on the engineering geological conditions, this paper used the method of theoretical analysis and numerical simulation to study the key stratum structure morphology of LMTCCM in extra-thick coal seams. …”
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    Article
  8. 2568

    Carbon Credits Through Wood Use: Revisiting the Maximum Potential and Sensitivity to Key Assumptions by Jari Niemi, Sampo Soimakallio, Elias Hurmekoski, Tanja Myllyviita, Janni Kunttu, Federico Lingua, Tord Snäll

    Published 2025-02-01
    “…ABSTRACT Wood use generates technosphere carbon credits (TCCs) through avoided fossil‐based emissions and net sequestration of carbon into the technosphere (harvested wood products and geological storage). We investigated how large and uncertain TCCs of wood use per carbon harvested are considering the current and alternative ways of using wood, and the effects of the decarbonization of societies over 25‐, 50‐, and 100‐year time horizons. …”
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  9. 2569

    On the Regional Variability of dB/dt and Its Significance to GIC by A. P. Dimmock, L. Rosenqvist, D. T. Welling, A. Viljanen, I. Honkonen, R. J. Boynton, E. Yordanova

    Published 2020-08-01
    “…This is due to the complex spatiotemporal behavior of electrical currents flowing in the ionosphere and/or large gradients in the ground conductivity due to highly structured local geological properties. Over some regions, and during large storms, both of these effects become significant. …”
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  10. 2570

    Inventory and Conservation of Triassic Vertebrate Tracks in the Monts d’Ardèche UNESCO Global Geopark, France by Emmanuel Fara, Jean-David Moreau, Leo Szewczyk, Nicolas Klee, Georges Gand, Emmanuelle Vennin

    Published 2021-09-01
    “…This territory possesses significant geological structures, including numerous and rich Middle-Late Triassic vertebrate tracksites. …”
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  11. 2571

    Strength and Cost Analysis of New Steel Sets as Roadway Support Project in Coal Mines by Qinghai Li, Renshu Yang, Jingkai Li, He Wang, Zhijie Wen

    Published 2018-01-01
    “…These new sets can be chosen according to different geological conditions in situ.…”
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  12. 2572

    Dynamic compressive characteristics of a green sandstone under coupled hydraulic-mechanical loading: Experiments and theoretical modeling by Bangbiao Wu, Geli Zhao, Ying Xu, Kaiwen Xia

    Published 2025-01-01
    “…Deep rock is under a complex geological environment with high geo-stress, high pore pressure, and strong dynamic disturbance. …”
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  13. 2573

    Modified Weights-of-Evidence Modeling with Example of Missing Geochemical Data by Daojun Zhang, Frits Agterberg

    Published 2018-01-01
    “…Next, it is applied to a study area with 20 known gold occurrences in southwestern Nova Scotia in relation to four input layers based on geological and lake geochemical data. Assuming that geochemical data were missing for the northern part of the study area, MWofE, like WofE but unlike LR, provides posterior probabilities for the entire area.…”
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  14. 2574

    Invitación al geoturismo. Reflexiones sobre geodiversidad y potencial geoturístico en la Patagonia Argentina. by María de la Paloma Martínez Fernández

    Published 2013-12-01
    “…Geotourism as a type of nature tourism comes to fill an empty field on the use of geological resources of the landscape in Argentina. …”
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  15. 2575

    Landslide hazard assessment of an urban agglomeration in central Guizhou Province based on an information value method and SVM, bagging, DNN algorithm by Junhua Luo, Zulun Zhao, Wei Li, Liang Huang, Weiquan Zhao

    Published 2025-01-01
    “…Therefore, this study selected 12 indicators from the topography, geological structure, and external inducing factors, and conducted factor collinearity analysis using the variance expansion coefficient to construct a landslide hazard assessment index system. …”
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  16. 2576

    Analysis of Rainfall Erosion and Protective Measures for the Aeolian Sand Subgrade Slope of the Wuma Expressway by Wenhua Yin, Fang Wang, Weizheng Liu, Yongxiang Wu, Xu Wang

    Published 2022-01-01
    “…Typically, the rainfall period in aeolian sand areas worldwide is concentrated and the rainfall volume is relatively large, which combined with small and unstable nature and the aeolian sand particles means roads built in these areas can be easily washed away and are vulnerable to water damage. Given geological conditions, topographic features and hydrometeorological conditions differ depending on the region, basic research into water damage in highway roadbed slopes in aeolian sand areas is necessary to formulate treatment measures that are versatile and applicable in different regions. …”
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  17. 2577

    Tunnel squeezing prediction based on partially missing dataset and optimized machine learning models by Peng Guan, Guangzhao Ou, Feng Liang, Weibang Luo, Qingyong Wang, Chengyuan Pei, Xuan Che

    Published 2025-01-01
    “…Accurate prediction of tunnel squeezing, one of the common geological hazards during tunnel construction, is of great significance for ensuring construction safety and reducing economic losses. …”
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  18. 2578

    Digital Coalescence and Consolidated Geoconservation Outcomes: A Case Study Using ArcGIS Mobile Applications at Tasmanian Coastal Geoconservation Sites by Jake Crisp, Joanna Ellison, Andrew Fischer

    Published 2022-06-01
    “…Geoconservation outcomes are hindered by highly subjective and conflicting criteria, varying assessment objectives, disparities in geoconservation strategy steps and the inadequate capturing and representation of geological data in dynamically changing inventories. …”
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  19. 2579

    Multivariate Prediction Model of Strength and Acoustic Emission Energy considering Parameter Correlation of Coal or Rock by Shuncai Li, Daquan Li, Nong Zhang

    Published 2020-01-01
    “…The results indicate that, for the coal samples from the same geological source, the obtained regression models can, respectively, predict the uniaxial compressive strength, elastic modulus, and the maximum AE energy according to the predesigned loading rate, the acoustic velocity, and mass density of coal samples measured before loading, without too many repeated loading failure tests.…”
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  20. 2580

    Optimizing Pile Bearing Capacity Prediction Using Specific Random Forest Models Optimized by Meta-Heuristic Algorithms for Enhanced Geomechanically Applications by Nengyuan Chen

    Published 2023-12-01
    “…The synergistic combination of specific RF models with meta-heuristic algorithms yields auspicious outcomes, paving the way for real-time PBC estimation across a broad spectrum of geological scenarios. Remarkably, the RFSO model exhibits exceptional performance, achieving an R2 value of 0.998 for the entire dataset while boasting the lowest RMSE of 109.43. …”
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