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Rectal Drainage: Unusual Evolution of a Psoas Abscess
European Journal of Pediatric Surgery, 1998We report two cases of primary psoas abscess in two patients of 15 months and 4 years of age. As the first case showed the natural history of this process the second one was large enough to produce a huge ureterohydronephrosis and to drain through the rectal wall to the rectum spontaneously, although this natural way did not achieve complete drainage ...
V, Ibañez +8 more
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Drainage evolution in the southern Appalachians
Geological Society of America Bulletin, 1939Following the Appalachian revolution and the Palisades disturbance the main drainage divide between the Atlantic Ocean and the interior was not far from the Blue Ridge. How the drainage was reversed and the divide shifted to its present position has long been a major question of Appalachian geomorphology commonly answered by regional superposition ...
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Foam drainage wave coalescing and its energy evolution
Science Bulletin, 2008Liquid foam is a dense packing of gas bubbles in a small amount of surfactant solution. Liquid drains out of foams until equilibrium is reached due to the compromise between gravity and capillarity, which greatly affects the stability of foam. Based on a series of work on foam structure and drainage we conducted previously, this paper reports the ...
QiCheng Sun, Jin Huang, GuangQian Wang
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Drainage Basins Evolution with Non-erodible Regions
2012Drainage basins are systems that collect water over a finite area and convey it to lower altitudes by gravity. Large-scale basins are so important that they became subject of a scientific field called hydrology (e.g., [1]). Small-scale basins, like the ephemeral set of channels present in superficial runoff water, are also important since they carry ...
M. R. Errera, C. A. Marin
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Drainage Evolution on the Yunnan-Tibet Frontier
Geographical Review, 1919A recent article1 on the drainage conditions in the region where the Salween, Mekong, and Yangtze are compressed within a space of 50 miles in their flow southward from the Tibetan Plateau is a bold, not to say a venturesome application of deductive geomorphology in an effort to give explanatory description of the river courses in a lofty mountain ...
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ON THE EVOLUTION OF THE UPPER-MOLOPO DRAINAGE
South African Geographical Journal, 1997ABSTRACT The evolution of the Molopo drainage can be explained both in terms of tectonics and climatic variations. The upper-Molopo expanded from the more westerly situated ancient proto-Molopo in a topographic low that developed concurrently with the deepening of the Kalahari Basin, in-between incipient forms of two intra-continental axes of uplift. A
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An invasion percolation model of drainage network evolution
Nature, 1991STREAM networks evolve by headward growth and branching away from escarpments such as rift margins. The structure of these networks and their topographic relief are known to be fractal1–3, but no model so far has been able to generate the observed scaling properties.
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Evolution of the New River drainage system, Westland
New Zealand Journal of Geology and Geophysics, 2001Abstract The small catchment of the New (Paroa) River, on the West Coast of the South Island, displays a markedly asymmetrical drainage pattern which reflects its tectonic and Quaternary glacial history. Outwash from ice in the Taramakau valley and Lake Brunner basin during the Nemona Glaciation created a new surface on which the forerunner of the ...
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The Evolution of Drainage Water in Egypt
2017When floodwater comes only once a year to flush the soil and leach the accumulated salts thoroughly, there was no need for any drainage projects. The irrigation in Egypt was practiced only on the scale of scattered basins spreading from south to north and from the river floodplain eastward and westward.
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