the present work is an experimental study of steady state convective heat transfer of de-ionized water with a (0.04% by volume) volume fraction of al2o3 nanoparticles dispersed to form a nanofluid that flows through an aluminium tube.laminar fully developed flow heat transfer coefficient of al2o3 nanoparticles are dispersed in water in circular tube is discussed in this paper. in order to valid...

The aim of this study was to investigate the effect of ionization on drug transport across the intestinal epithelium in order to include this effect in structure-absorption relationships. The pH-dependent permeation of one rapidly (alfentanil) and one slowly (cimetidine) transported basic model drug across Caco-2 cell monolayers was investigated. Both drugs had pK(a)values in the physiological ...

Abstract In addition to being used as an energy source, coal also has significant potential for other, more sustainable uses including water treatment. this study, we present a simple approach treat that was produced during oil production and contained total dissolved solids (TDS) content of over 150 g/L using Powder River Basin (PRB) coal. PRB packing material in flow-through column effectivel...

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We derive the ratio of transport and single-particle relaxation times in threeand two-dimensional electron gases due to scattering from charged dislocations in semiconductors. The results are compared to the respective relaxation times due to randomly placed charged impurities. We find that the ratio is larger than the case of ionized impurity scattering in both threeand two-dimensional electro...