共查询到20条相似文献,搜索用时 31 毫秒
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R.W. Girdler 《Physics of the Earth and Planetary Interiors》1983,33(4):328-329
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Kiyoshi Baba 《Geomagnetism and Aeronomy》2008,48(5):690-690
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Prof. M. PARDÉ 《水文科学杂志》2013,58(2):17-35
Abstract The “non-Darcian” behaviour of water in soils is discussed considering the coupling that can arise between the different transport phenomena. In general, it is shown that there is a reason to expect that a difference in osmotic pressure will arise when solutions flow through porous media, and that due to that difference the resulting flow be related in a non-linear fashion to the applied pressure difference. Several numerical examples are presented illustrating this behaviour. 相似文献
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William BACK 《水文科学杂志》2013,58(3):43-45
Abstract The departure of ground water from equilibrium with calcite is being studied in central Florida. Measurements of pH, temperature, and concentration of bicarbonate made in the field are used with standard laboratory analyses of water samples to calculate an ion activity product (K iap ) for calcium carbonate. The calculated Kiap is compared with the equilibrium constant (Keq) for calcite to determine the departure from equilibrium. The calcium concentration is lowest in the area of the highest piezometric surface. Some of the highest concentrations of bicarbonate are in the area of low calcium. In about half of the area of study, the water is undersaturated with respect to calcite. This indicates that solution of limestone can occur several hundred feet below the water table. 相似文献
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