منابع مشابه
Quantitative Characterization of Permeability Fluctuations in Sandstone
Sedimentary rocks have complicated permeability fluctuations arising from the geological processes that formed them. These permeability fluctuations significantly affect the flow of fluids through the rocks. We analyze data on two sandstone samples from different geological environments, and find that the permeability fluctuations display long-range power-law correlations characterized by an ex...
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The transport equation describing the flow of solute across a membrane has been modified on the basis of theoretical studies calculating the drag of a sphere moving in a viscous liquid undergoing Poiseuille flow inside a cylinder. It is shown that different frictional resistance terms should be introduced to calculate the contributions of diffusion and convection. New sieving equations are deri...
متن کاملQuantitative evaluation of Blood Brain Barrier permeability in transient focal cerebral ischemia in the rat
Introduction: Development of brain edema following focal cerebral ischemia exacerbates primary ischemic injury. Blood brain barrier (BBB) opening is an important part of edema named as vasogenic brain edema. In this study, quantitative alterations of BBB permeability is experimentally evaluated using transient focal cerebral ischemia in the rat. Methods: Two groups of male rats (ischemic and sh...
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Optimization of pricing financial assets less an emerging discipline that attempts to model the impact of biases that investors in asset prices. This article provides an overview of the theoretical foundations and challenges and offers some solutions in this field. The paper is divided into two parts. In the first part of the paper, an overview of the selected literature is presented on key the...
متن کاملKlinkenberg effect for gas permeability measurement
Klinkenberg effect for gas permeability and its comparison to water permeability for porous sedimentary rocks W. Tanikawa and T. Shimamoto Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 200 Monobe-otsu, Kochi, Japan. Department of Geology and Mineralogy, Faculty of Science, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo-ku, Kyoto, Ja...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1918
ISSN: 0006-8071
DOI: 10.1086/332285