نتایج جستجو برای: permeability reduction
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Earlier studies demonstrated that oscars, endemic to ion-poor Amazonian waters, are extremely hypoxia tolerant, and exhibit a marked reduction in active unidirectional Na(+) uptake rate (measured directly) but unchanged net Na(+) balance during acute exposure to low P(O(2)), indicating a comparable reduction in whole body Na(+) efflux rate. However, branchial O(2) transfer factor does not fall....
Previously, the only known blockers of water permeability through aquaporin-1 (AQP1) water channels were mercurial reagents such as HgCl(2). For AQP1, inhibition by mercury has been attributed to the formation of a mercaptide bond with cysteine residue 189 found in the putative pore-forming region loop E. Here we show that the nonmercurial compound, tetraethylammonium (TEA) chloride, reduces th...
Traditional methods of coal seam gas drainage rely on the use of reservoir pressure reduction to promote gas desorption from the coal matrix. Studies in coal mining gas drainage operations, particularly in coal seams that are deeply undersaturated and have low permeability, found the rate of reservoir pressure reduction was prohibitively slow. In such conditions, lengthy production delays have ...
A study of strial capillary permeability using fluorescent microspheres and immunohistochemistry in mice that do or do not exhibit a reduction in endocochlear potential following a single, intense noise exposure.
Permeability is an important parameter in the process of coalbed methane exploitation. To improve production efficiency and explore control mechanism gas flow law coal, permeability helium nitrogen same coal sample was tested under different effective stress (the difference between external pore pressure mass) by using seepage device. Based on theory, interaction stress, adsorption effect Klink...
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