Drop Size Distribution
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Fluidodinamica e secagem do acido adipico em leito vibrofluidizado
The objective of this work is the development and building of a vibrofluidized bed and sampling system for the fluid-dynamic study and drying of adipic acid. The adipic acid investigated in this work presents partic1e diameter in the range of 75 - 600 ?m and density of 1340 kg/m3. Adpic acid is the main intermediate product in the synthesis of Nylon. It is t
Publicado em: 2002
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14. Dynamic friction and the origin of the complexity of earthquake sources.
We study a simple antiplane fault of finite length embedded in a homogeneous isotropic elastic solid to understand the origin of seismic source heterogeneity in the presence of nonlinear rate- and state-dependent friction. All the mechanical properties of the medium and friction are assumed homogeneous. Friction includes a characteristic length that is longe
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15. Water-to-Air Transfer and Enrichment of Bacteria in Drops from Bursting Bubbles
An electrostatic induction technique was used to determine both drop size distribution and concentration of bacteria in the film drops produced by bubbles bursting at the surface of a suspension of Serratia marcescens. Film drops are produced from the collapse of the thin film of water that just before bursting separates the air in the bubble from the atmosp
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16. Desert dust suppressing precipitation: A possible desertification feedback loop
The effect of desert dust on cloud properties and precipitation has so far been studied solely by using theoretical models, which predict that rainfall would be enhanced. Here we present observations showing the contrary; the effect of dust on cloud properties is to inhibit precipitation. Using satellite and aircraft observations we show that clouds for
The National Academy of Sciences.
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17. Population Challenges for Bangladesh in the Coming Decades
Bangladesh currently has a population approaching 150 million and will add another 100 million before stabilizing, unless fertility can soon drop below replacement level. This level of fertility decline will require a change in marriage patterns, which have been minimal so far, even with increasing female schooling. It would also benefit from a long-awaited
International Centre for Diarrhoeal Disease Research.
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18. Reduction of atherosclerosis by administration of dehydroepiandrosterone. A study in the hypercholesterolemic New Zealand white rabbit with aortic intimal injury.
Dehydroepiandrosterone (DHEA) is an endogenous steroid that blocks carcinogenesis, retards aging, and exerts antiproliferative properties. In vitro, it is a potent inhibitor of glucose-6-phosphate dehydrogenase, the first committed step of the pentose phosphate pathway. In man, serum levels of DHEA and its sulfate peak in early adulthood and drop markedly wi