Velocity Contour
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. El análisis de imágenes como herramienta de monitoreo en la deshidratación de rodajas de banana
Abstract The objective of this work was to evaluate the morphometric, fractal and color changes during the dehydration of banana slices through the use of image analysis. The convective drying was performed between 75 °C and 134 °C at an air velocity of 0.65 m s-1. Results showed that the images provided quantitative information of the morphometric changes
Braz. J. Food Technol.. Publicado em: 15/08/2019
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2. Determining the viscous behavior of non-Newtonian fluids in a flume using a laminar sheet flow model and Ultrasonic Velocity Profiling (UVP) system
The flow of non-Newtonian fluids in rectangular open channels has received renewed interest over the past number of years especially as large flumes are being used to transport tailings in countries like Chile. The effect of yield stress on the flow behavior is complex and not yet fully understood. The Ultrasonic Velocity Profiling (UVP) technique has been u
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-09
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3. Validação experimental de metodologias para quantificação contínua de vazão no Ribeirão da Onça / Experimental validation of methodologies for continuous measurement of flow in the Ribeirão da Onça basin
Desde 2004, o grupo de estudos do Laboratório de Hidráulica Computacional (LHC) estuda as taxas de recargas hidráulicas do Aquifero Guarani, na Bacia do Ribeirão da Onça. Entretanto, não havia se estudado a quantificação do escoamento superficial. Para sanar esta deficiência, este trabalho visou analisar as metodologias de estimativa de vazão com q
Publicado em: 2009
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4. Métodos para quantificação da artéria carótida em imagens de ultrassom modo-B e Doppler. / Methods for quantification of the carotid artery in B-mode and Doppler ultrasound images.
No campo da medicina diagnóstica através de imagens, o baixo custo e a característica não-invasiva da ultrassonografia modo-B favoreceram as pesquisas que analisam a relação entre a espessura íntima-média (EIM) da artéria carótida e o desenvolvimento de doenças cardiovasculares. Outra técnica de ultrassonografia, baseada no efeito Doppler, també
Publicado em: 2009
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5. Esquema numérico com reconstrução mínimos quadrados de alta ordem em malhas não-estruturadas para a formulação euleriana do transporte de partículas / Numerical scheme with high order least square reconstruction on unstructured grid to eulerian formulation of the particle transport
The particle transport study has a fundamental importance in diverse research area like in the icing accretion on an aircraft because that can affect its sustentation and stability. The concern is so big that many researches have been carried through, resulting in computational codes like the LEWICE in the United States, TRAJICE in the United Kingdom, ONERA
Publicado em: 2008
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6. A variational formulation to image inclusions in 2D travel time cross hole tomography
It was developed a simple and high speed method with the purpose to model inclusions of irregular forms (simply connected and convex domain) in the context of cross hole travel time 2D tomography. The extension to 3D can be easily implemented and is not covered in this paper. The following assumptions were made: a) Homogeneus host medium (therefore straight
Revista Brasileira de Geofísica. Publicado em: 2003-12
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7. Chacacterization, modeling and computacional simulation on dynamics of neural cells connections and growth / Caracterização, modelagem e simulação matemático-computacional da dinâmica do crescimento e conexões de células neurais
In this thesis we report the investigation and simulation of dynamic models of neural growing, and their characterization using shape features, considering the form function relationship and neuromorphometry. The thesis begins by presenting an overview about neuroscience, neural cell biology and the biological factors that affects the neuron form development
Publicado em: 2003
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8. Aceleração e fluxos potenciais em relatividade geral : resultados analiticos e numericos
Analytical and numerical solutions for the integral curves of the velocity field (streamlines) of a steady-state flow of an ideal fluid with p = ( g -1) equation of state are presented. When g = 2, the streamlines associated with an accelerate black hole and a rigid sphere are studied in some detail, as well as, the velocity fields of a black hole and a rigi
Publicado em: 2002
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9. Gravity crustal model for an andean section at 32° s considering upper mantle lateral density variation
Up to date, three gravity models for the Andean section at 32° south latitude have been published. Two of them did not have seismic reflection/refraction data to constrain the subsurface geometry. The other one included seismic data to fit thicknesses and determined density contrasts using velocity-density curves. Furthermore, all previous models assumed a
Revista Brasileira de Geofísica. Publicado em: 2000-08
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10. An alternative finite element formulation for determination of streamlines in two-dimensional problems
It is well known that the numerical solutions of incompressible viscous flows are of great importance in Fluid Dynamics. The graphics output capabilities of their computational codes have revolutionized the communication of ideas to the non-specialist public. In general those codes include, in their hydrodynamic features, the visualization of flow streamline
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000
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11. Isolation of folded chromosomes from Mycoplasma hyorhinis.
Folded chromosomes were isolated from Mycoplasma hyorhinis. When examined by electron microscopy, these molecules show variability of loop size, number of loops, total contour length and degree of twisting of the DNA. Sedimentation velocity was unaltered after treatment with RNase, proteinase K, SDS, temperatures up to 65 degrees C and NaCl concentrations fr
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12. Size Distribution of the Closed Circular Deoxyribonucleic Acid Molecules of Bacillus megaterium: Sedimentation Velocity and Electron Microscope Measurements
The circular deoxyribonucleic acid (DNA) of Bacillus megaterium was fractionated by sedimentation velocity on preparative zonal gradients. The fractions obtained were characterized by analytical sedimentation velocity analysis on neutral and alkaline sucrose gradients, and by contour length measurement by electron microscopy. Each fraction was found to conta