Similarity Geometry
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Simulation of tailings release in dam break scenarios using physical models
Abstract This article presents an experimental study performed to evaluate the volume of material released from the reservoir during a tailings dam failure event using models. To verify the influence of the parameters related to the breach geometry and the undrained shear strength (Su) in a failure event, 20 scenarios were simulated considering the absence o
REM, Int. Eng. J.. Publicado em: 19/06/2019
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2. LED TUBS ARTIFICIAL LIGHTING SYSTEM IN BROILER PRODUCTION
ABSTRACT Light is important for the physiology and zootechnical development of broilers and is characterized by the type of source defined by the spectral emission and geometry of the lamp, as well as the intensity and spatial distribution of the illuminance. The aim of this study was to verify the influence of an artificial lighting system based on tubular
Eng. Agríc.. Publicado em: 2018-06
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3. DBD Plasma: Explicit Model with Integral Approximate Solution to Wall Jet
ABSTRACT: This study aims to first introduce a formulation which is quite simple for obtaining dielectric-barrier discharge plasma spatial body force. This new model comprises a combination of an empirical model and a numerical one. Although there are still some limitations in the new model (restriction to specific geometry, maximum voltage amplitude of 30 k
J. Aerosp. Technol. Manag.. Publicado em: 26/02/2018
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4. NOVEL SIMILARITY-SOLUTION WHICH IS APPLICABLE FOR FREE CONVECTION OVER A BODY OF ARBITRARY SHAPE: THERMAL NON-EQUILIBRIUM IN A POROUS MEDIUM
Abstract The study of the natural convection flow and heat transfer from hot surfaces in a porous medium has been of considerable interest in energy-related engineering problems. This paper is concerned with the free convection heat transfer over an arbitrary hot surface in a porous medium. It is assumed that the fluid and solid phases are not in local therm
Braz. J. Chem. Eng.. Publicado em: 2015-03
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5. Effects of CFRP retrofit on impact response of shear-deficient scaled reinforced concrete beams
An experimental procedure is carried out to investigate response features of semi-deep reinforced concrete (RC) beams with dominant static shear failure subjected to low-velocity impact dynamic load both in intact and retrofitted cases. Built specimens have scaled geometry and material properties preserving physical similarity with full-scale members and are
Lat. Am. j. solids struct.. Publicado em: 2015-01
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6. Métodos de redução do arrasto e seus impactos sobre a estabilidade veicular / Methods of drag reduction and the impacts on the vehicle aerodynamics stability
The growing environmental concern and the necessity to create more efficient products have motivated researchers to conduct studies about the aerodynamic vehicle. These two aspects are the main reasons which are promoting a great demand for knowledge in this theme. This science may be considered relatively new and still lacks more databases. Understand how a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2011
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7. Information geometric similarity measurement for near-random stochastic processes
We outline the information-theoretic differential geometry of gamma distributions, which contain exponential distributions as a special case, and log-gamma distributions. Our arguments support the opinion that these distributions have a natural role in representing departures from randomness, uniformity, and Gaussian behavior in stochastic processes. We show
Publicado em: 2011
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8. Aspectos dinâmicos de espalhamento caótico clássico / Dynamical aspects of classical scattering
In this thesis we study different scattering systems with chaos. Chaotic scattering, present in a large variety of physical systems, is a type of transient chaos. While the phase-space of such systems is unbounded, irregular motion occurs only in a bounded area, called the scattering region. Still, any (nontrivial) scattering function relating initial condit
Publicado em: 2009
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9. Contribuições ao estudo da fluidodinâmica em leitos de jorro utilizando-se CFD
In the present thesis are discussed two important questions regarding spouted bed fluidynamics: scale-up procedure and semicylindrical vessel for inferring fluidynamic behavior in cylindrical systems. To evaluate these points were applied numerical simulation by CFD techniques and experimental analysis by using data from laboratory and literature. The scale-
Publicado em: 2009
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10. Isometrias e similaridades / Isometries and similarities
The objective of this work is to classify isometries and similarities on three dimensional Euclidean space. We present some historic facts about Geometry followed by a study on isometries and similarities using tools and concepts from groups. We also suggest some helpful activities to develop abilities in the investigation of symmetry groups of figures
Publicado em: 2008
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11. Síntese de bisporfirinas contendo o espaçador 2,2-bipiridina: modelos na elaboração de sensores luminescentes de íons metálicos / Synthesis of bisporphyrins held together by the 2,2-bipyridine spacer: models in the elaboration of luminescent sensors for metal ions
In this work have been synthesized bisporphyrins held together by means of amide linkage at the 4,4position of 2,2-bipyridine, reacting the mono-functionalised aminophenyl-porphyrin (NH2PTriPP) and 4,4-diacid chloride bipyridine (DACBipy). A preliminary study was conducted for the establishment of the reaction conditions for the attainment of mono(nitropheny
Publicado em: 2008
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12. Uma seqüência de ensino para o estudo de progressões geométricas via fractais
The objective of this research is to investigate the learning of Geometric Progressions by fractals and their influences on the construction of the knowledge of this subject. Starting from this objective our research questions emerge: How the use of the fractals motivate can be in the perception of the solemnity-similarity? How can the solemnity-similarity c
Publicado em: 2007