Bed Thickness
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Experimental bedforms by saline density currents
Abstract Bedforms are sedimentary features that can be generated on the seafloor by the interaction between density currents and mobile beds. Developing knowledge about the hydraulic and sedimentary processes involved during these events is in the interest of research groups and oil companies. Because of the magnitude of the density currents in its natural e
Braz. J. Geol.. Publicado em: 20/05/2019
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2. ELETRORRECUPERAÇÃO DE COBRE UTILIZANDO REATOR ELETROQUÍMICO DE LEITO DE JORRO
In this work, copper electrowinning using a three-dimensional spouted-bed electrode (SBE) was studied in order to investigate the effects of current density (i), concentration of supporting electrolyte (Cs), pH, electrolyte temperature, and bed thickness on the process current efficiency (EC), energy consumption (CE) and space-time yield (Y). The results
Quím. Nova. Publicado em: 2015-06
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3. Qualitative histologic evaluation of the tissue reaction to the polyurethane resin (ricinus communis - based biopolymer) implantation assessed by light and scanning electron microscopy
The tissue reaction of bone tissue accessed by light microscopy and scanning electron microscopy (SEM) images after polyurethane resin implantation is presented in this study. Twenty four male rabbits were used, divided into two groups of 12 animals each (experimental group and control group) in which full-thickness cranial defect was surgically created. At
Polímeros. Publicado em: 26/07/2013
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4. Numerical prediction of bed-load and surface deformation on a granular bed sheared by a turbulent boundary-layer
The entrainment of solid particles by a fluid flow is frequently found in nature and in industry. A better knowledge of this is of importance to understand the physical nature of the phenomenon and to improve industrial processes. Bed-load occurs if the shear stresses exerted by the fluid on the granular bed are bounded to some limits: a mobile granular laye
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03
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5. Is miniscrew primary stability influenced by bone density?
Primary stability is absence of mobility in the bone bed after mini-implant placement and depends on bone quality among other factors. Bone quality is a subjective term frequently considered as bone density. The aim of this preliminary study was to evaluate bone density in two bovine pelvic regions and verify the primary stability of miniscrews inserted into
Brazilian Oral Research. Publicado em: 2011-10
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6. Estudo tecnológico para beneficiamento do carvão da camada Bonito, SC
The coal from Barro Branco seam, which is widely used, is situated in the southern Brazil, State of Santa Catarina, and it is reaching depletion. The remaining coal from Bonito seam in the same region is less known and is characterized by the high percentage of near-gravity material and ash content. This peculiarity makes it difficult to treat in the current
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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7. Comparação dos processos de eletrodeposição de íons cobre usando reatores de leito fluidizado e leito de jorro
In this work was studied the process of removal of ions has covered simulated effluent gifts in watery having used electrochemical reactor of fluidized stream bed and of stream bed of I gush out whose porous cathodes were composites for conducting copper particles. Applying an factorial planning Box-Behnken the effect of the electric chain had been studied,
Publicado em: 2010
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8. Estudo comparativo entre a cola de fibrina e o plasma rico em plaquetas em enxertos cutâneos em cães / Comparative study between the fibrin glue and platelet-rich plasma on skin grafts in dogs
Skin grafts in dogs are mainly used in large skin loss in the distal regions of limbs. Fibrin glue and platelet-rich plasma act as adjuvants in the healing skin. The aim of this study was to compare fibrin glue (Tissucol ) and platelet-rich plasma on skin grafts, full thickness mesh in dogs. Were used 18 dogs divided into two groups, fibrin glue (CF) and pla
Publicado em: 2010
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9. Experimental and theoretical investigation of anaerobic fluidized bed biofilm reactors
This work presents an experimental and theoretical investigation of anaerobic fluidized bed reactors (AFBRs). The bioreactors are modeled as dynamic three-phase systems. Biochemical transformations are assumed to occur only in the fluidized bed zone. The biofilm process model is coupled to the system hydrodynamic model through the biofilm detachment rate; wh
Brazilian Journal of Chemical Engineering. Publicado em: 2009-09
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10. Boundary layer thickness of cylinders and plane surfaces immersed in packed beds in alignment with the flow
In this work, boundary layer development was investigated for a mass transfer process between a moving fluid and a slightly soluble cylinder or plane surface buried in a packed bed, in alignment with the direction of flow. The bed of inert particles is taken to have uniform voidage. For this purpose, numerical solutions of the partial differential equations
Brazilian Journal of Chemical Engineering. Publicado em: 2009-03
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11. Avaliação da secagem do bagaço de cajá usando planejamento fatorial composto central
This work deals with the kinetics assay of Cajá (Spondias mombin L.) bagasse drying by an experimental design using a tray dryer. In order to add-value to this product a kinetic study has been carried out. A central composite experimental design has been carried out to evaluate the influence of the operational variables: input air temperature (55; 65 e 75C)
Publicado em: 2008
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12. Estudo experimental e de simulação da fluidodinâmica e recobrimento em leito de jorro
The spouted bed technique has found application in many industrial processes such as drying of granular materials, blending of polymer chips, coating of tablets, and granulation of fertilizers and other materials. Although has an extensive application, the mechanisms of solids movement in spouted beds are still not completely understood. The knowledge of the
Publicado em: 2006