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501.
Geology of Ore Deposits - For the first time, based on a study of the typomorphic features of placer gold and its distribution patterns, the predicted gold potential of the east of the Siberian... 相似文献
502.
Acta Geotechnica - The cardioid-shaped loading path induced by moving traffic has been reproduced in the virtual element test of granular media using the discrete element method (DEM). The DEM... 相似文献
503.
Zhou W. D. Xie S. Y. Bao Z. Y. Carranza E. J. M. Wang Y. Tang M. L. 《Mathematical Geosciences》2022,54(1):131-150
Mathematical Geosciences - Inorganic pore structures are critical to understand the oil and gas transport and storage properties of unconventional reservoirs. However, it can be difficult to... 相似文献
504.
Which is more hazardous: avalanche,landslide, or mudslide? 总被引:2,自引:0,他引:2
X.-Z. Xu Z.-Y. Liu W.-L. Wang H.-W. Zhang Q. Yan C. Zhao W.-Z. Guo 《Natural Hazards》2015,76(3):1939-1945
505.
Three modes of rainfall infiltration inducing loess landslide 总被引:4,自引:1,他引:3
506.
Historical torrential flood events in the Kolubara river basin 总被引:1,自引:0,他引:1
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509.
Abstract Hourly wind speeds and directions taken at six sites near Vancouver, Canada over a period of one year during 1971–1972 have been analyzed. Mean magnitude ratios obtained for different wind directions under high wind conditions vary from about 0.3 to 1.4 and can be explained qualitatively by local shelter effects, local terrain effects or anemometer heights. The mean magnitude ratio is in every case shown to be essentially identical to the ratio of mean wind magnitudes, for high wind conditions; this is justified by simple analysis. The standard deviation of the magnitude ratio lies between 0.24 and 0.69 of the mean ratio. Uncertainty in this mean ratio, which is an important link in wind engineering design, may have to be incorporated into statistical design procedures to avoid taking unknown risks in the estimation of design wind speeds. 相似文献
510.
The spatial–temporal properties of aerosol types over China are studied using the radiance measurements and inversions data at four Aerosol Robotic Network (AERONET) stations in China. Based on a cluster analysis, five aerosol classes were identified including a coarse-sized dominated aerosol type (presumably dust) and four fine-sized dominated aerosol types ranging from non-absorbing to highly absorbing fine aerosols. The optical properties and seasonal variations of these aerosol types are investigated. The results of analysis show that: (1) the highly absorbing aerosols usually occur in winter, (2) non-absorbing aerosols are frequently observed in summer; (3) coarse-sized dominated aerosols are frequently occurred in spring. 相似文献