نتایج جستجو برای: variable permeability
تعداد نتایج: 308446 فیلتر نتایج به سال:
Investigation of the permeability of membranes is most important for biology. The complicated and variable permeability of biological membranes cannot be understood before the simpler conditions in artificial membranes of different qualities have been satisfactorily explained. After M. Traube in 1867 had developed the copper ferrocyanide membrane and Pfeffer published his investigations, the pr...
A method is devised for estimating the potential permeability of fracture networks from attributes of fractures observed in outcrop. The technique, which is intended as a complement to traditional approaches, is based on type curves that represent various combinations of fracture lengths, fracture orientations and proportions (i.e., intensities) of fractures that participate in flow. Numerical ...
Investigation of the permeability of membranes is most important for biology. The complicated and variable permeability of biological membranes cannot be understood before the simpler conditions in artificial membranes of different qualities have been satisfactorily explained. After M. Traube in 1867 had developed the copper ferrocyanide membrane and Pfeffer published his investigations, the pr...
Role of microvascular permeability on physiologic differences in asthma and eosinophilic bronchitis.
Asthma and eosinophilic bronchitis are characterized by a similar type of eosinophilic inflammation. However, eosinophilic bronchitis differs from asthma in that there is no variable airflow obstruction or airway hyperresponsiveness. We evaluated the roles of vascular endothelial growth factor (VEGF) and microvascular permeability in causing these differences between the two diseases. Inflammat...
The release rate of liquid core material from microcapsules is crucial for the surface properties self-protective metal/liquid microcapsule composite plating coating. However, there no method to accurately predict microcapsules. In this paper, permeability experiments different shell membranes and materials were carried out using weight loss method, model was studied based on a multiple linear ...
Bioturbation can influence petrophysical properties (e.g., porosity, permeability) of sedimentary rocks and, in consequence, reservoir quality. The impact be positive, negative, or neutral, requiring detailed ichnological analysis. Ophiomorpha , a branched cylindrical burrow with diagnostic peloidal wall, may present bioturbated reservoirs that exhibit both super-permeability and reduced porosi...
The variation in soil permeability levels as a result of several types land use on dry Aceh Besar district is not widely known. Therefore, study the ability to pass water (soil permeability) various patterns very important conduct research order maintain sustainable environment. metode used directly survey method. Field carried out by taking samples that were taken composite manner processing l...
Regulation of blood vessel permeability is essential for the homeostasis of peripheral tissues. This regulation controls the trafficking of plasma contents, including water, vitamins, ions, hormones, cytokines, amyloids, lipoproteins, carrier proteins, and immunoglobulins. The properties of blood vessels vary among tissues based on their structural differences: continuous, fenestrated, or sinus...
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