Ramified Structures
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Particle transport in irregular structures: applications in pulmonary physiology, fractures and porous media / Transporte de partÃculas em estruturas irregulares: aplicaÃÃes em fisiologia pulmonar, fraturas e meios porosos.
Este trabalho à dedicado ao estudo do processo de transporte de fluido e massa atravÃs de sistemas irregulares. Na primeira parte desta tese, abordamos a dinÃmica do escoamento ocorrendo atravÃs de canais rugosos auto-afins. Essencialmente, os aspectos relevantes na compreensÃo do escoamento em sistemas irregulares sÃo o {it estrutural}, intimamente as
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2008
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2. Caracterización cualitativa de poliaminas libres en endurecedores de resinas epoxídicas del tipo etilenaminas por espectroscopia de resonancia magnética nuclear
The qualitative characterization of two commercial ethyneamines epoxide hardeners marketed by ACROS (U.S.A.) was carried out by using carbon-13 nuclear magnetic resonance spectroscopy. The products were triethylenetetramine (TETA) and tetraethylenepentamine (TEPA). TETA had four components, the most importante one being triethylenetetramine, an ethyleneamine
Polímeros. Publicado em: 2008-03
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3. Rheological and thermal behavior of amaranth starch-sodium caseinate systems : effect of sugar addition and acidification time / Comportamento reologico e termico de sistemas amido de amaranto-caseinato de sodio : efeito da adição de açucar e tempo de acidificação
The starches are frequently added to the foods owed their properties and water retention, as colloidal emulsion-estabilizing agents. The amaranth is a low cost culture, and his starch, a new ingredient with potential industrial use. The caseinato of sodium is a salt derived of the casein thoroughly used as emulsion in foods. The study proteins and polysaccha
Publicado em: 2008
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4. Shape transition during nest digging in ants
Nest building in social insects is among the collective processes that show highly conservative features such as basic modules (chambers and galleries) or homeostatic properties. Although ant nests share common characteristics, they exhibit a high structural variability, of which morphogenesis and underlying mechanisms remain largely unknown. We conducted tw
National Academy of Sciences.