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Geotectonics - Copper mineralization in Kahang porphyry mining district as a tectonically active region in the center of Iran, at the middle of Urmia–Dokhtar magmatic assemblage (UDMA), has... 相似文献
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Prediction of temporal scour hazard at bridge abutment 总被引:2,自引:1,他引:1
Reza Mohammadpour Aminuddin Ab. Ghani Mohammadtaghi Vakili Tooraj Sabzevari 《Natural Hazards》2016,80(3):1891-1911
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Grilli Stéphan T. Mohammadpour Maryam Schambach Lauren Grilli Annette R. 《Natural Hazards》2022,111(2):1431-1478
Natural Hazards - Tsunami coastal hazard is modeled along the US East Coast (USEC), at a coarse regional (450 m) resolution, from coseismic sources located in the Açores Convergence Zone (ACZ)... 相似文献
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Reza Mohammadpour 《Arabian Journal of Geosciences》2017,10(18):416
Local scour around piers is one of the main causes of bridge failures. In this study, three robust techniques, artificial neural networks (ANNs), M5-Tree, and Gene Expression Programming (GEP), were employed for prediction of scour depth around complex piers. The clear water condition was chosen for all experimental tests. The results indicated that pier diameter (b c) and foundation level (Y) are the main parameters for local scour. Furthermore, the minimum scour depth occurs in range of Y/b c = 1.1~1.3. In next step, to evaluate the mentioned techniques, a wide range of dataset was collected from the present study and literature. The radial base function (RBF) with R 2 = 0.945 and RMSE = 0.031 provides better prediction in comparison with conventional equations, M5-Tree (R 2 = 0.883, RMSE = 0.292) and the GEP techniques (R 2 = 0.811 and RMSE = 0.263). The equations developed by M5-Tree and GEP are more useful for practical purposes and can be easily employed to predict the depth of scour at complex piers. 相似文献
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