Geometric Deviation
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Avaliação de desvio dimensional em Inconel 718 após a retificação em diferentes técnicas de lubri-refrigeração
RESUMO O Inconel 718 é uma liga à base de níquel que possui elevada resistência à fadiga e à fluência, ductilidade, rigidez, inércia química e capacidade de operar em elevadas temperaturas, por isto é bastante utilizada na fabricação de peças aeronáuticas de alto rendimento. Estas peças exigem tolerâncias dimensionais e geométricas estreitas
Matéria (Rio J.). Publicado em: 25/11/2019
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2. PHOTOGRAMMETRIC POINT CLOUD CLASSIFICATION BASED ON GEOMETRIC AND RADIOMETRIC DATA INTEGRATION
Abstract The extraction of information from point cloud is usually done after the application of classification methods based on the geometric characteristics of the objects. However, the classification of photogrammetric point clouds can be carried out using radiometric information combined with geometric information to minimize possible classification issu
Bol. Ciênc. Geod.. Publicado em: 10/07/2019
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3. Hybrid Geoid Model: Theory and Application in Brazil
Determination of the ellipsoidal height by Global Navigation Satellite Systems (GNSS) is becoming better known and used for purposes of leveling with the aid of geoid models. However, the disadvantage of this method is the quality of the geoid models, which degrade heights and limit the application of the method. In order to provide better quality in transfo
An. Acad. Bras. Ciênc.. Publicado em: 2017-09
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4. A Note on the Inverse Reconstruction of Residual Fields in Surface Peened Plates
Abstract A modified stress function approach is developed here to reconstruct induced stress, residual stress and eigenstrain fields from limited experimental measurements. The present approach is successfully applied to three experimental measurements set in surface peened plates with shallow shot peening affected zone. The well-rehearsed advantage of the p
Lat. Am. j. solids struct.. Publicado em: 2015-12
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5. Performance of broilers fed during 21 days on mash or pellet diets containing whole or ground pearl millet grain
An experiment was carried out to evaluate the effect of the inclusion of 20% whole-grain or ground pearl millet (PM) in mash and pelleted diets on the performance, carcass traits, and organ weights of broilers reared until 21 days of age. A randomized block experimental design in a 3 x 2 factorial arrangement (diets containing corn and soybean meal, whole-gr
Rev. Bras. Cienc. Avic.. Publicado em: 2013-12
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6. The effects of auditory stimulation with music on heart rate variability in healthy women
OBJECTIVES: There are no data in the literature with regard to the acute effects of different styles of music on the geometric indices of heart rate variability. In this study, we evaluated the acute effects of relaxant baroque and excitatory heavy metal music on the geometric indices of heart rate variability in women. METHODS: We conducted this study in 2
Clinics. Publicado em: 2013-07
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7. A distribuição log-logística exponenciada geométrica: dupla ativação / The exponentiated log-logistic geometric distribution: dual activation
In this work, we propose a new distribution with four parameters the so called exponentiated log-logistic geometric distribution based on a double mechanism of activation for modeling lifetime data. For this new distribution, we study the density function, cumulative distribution, survival function and the failure rate function which allows major harzad rate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/09/2012
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8. Performance evaluation of carbide tools on automotive valve guides reaming / Avaliação do desempenho de ferramentas de metal duro no alargamento de guias de válvulas automotivas
Reaming is a machining process with relatively low cost and suitable when high quality holes are required. The purpose of this work is to evaluate the quality of the holes made in automotive valve guides, fabricated with sintered steel. This study was based on parameters of surface roughness, roundness and cylindricity deviations, obtained with uncoated carb
Publicado em: 2009
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9. Volatilidad de precios internacionales recibidos por los productores de kiwis y manzanas frescas chilenas
The purpose of this study is to analyze the behavior of FOB average prices and the average prices received by fresh kiwi and apple producers, using monthly figures for the period spanning from January 1998 to December 2005. The values were expressed in December 2005 currency rates using the U.S.A. WPI (Wholesale Price Index) as a deflator. The series of aver
Revista Brasileira de Fruticultura. Publicado em: 2008-03
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10. Investigação de desvios geométricos no alargamento de ferro fundido com ferramentas revestidas / Investigation of Geometric Deviation in Reaming of Cast Iron with Coated Tools
Durante a produção de um bloco de motor a execução de furos é a operação de usinagem mais comum, e exige operações posteriores a fim de melhorar a qualidade superficial, a precisão de forma e dimensional. Isso é conseguido empregando‐se, entre outras, a operação de alargamento. Este trabalho utilizou um planejamento de experimentos estatí
Publicado em: 2008
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11. Wear behavior of uncoated carbide inserts under dry, wet and cryogenic cooling conditions in turning C-60 steel
Environmental pollution, inconveniences and health hazards due to conventional application of cutting fluids essentially required for cooling and lubrication have been a great concern of the industries and the modern societies. Further they are also ineffective in controlling the high cutting temperature and rapid tool wear. One of the possible and potential
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-06
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12. SANDY BEACH MORPHODYNAMICS AND MACROBENTHIC COMMUNITIES IN TEMPERATE, SUBTROPICAL AND TROPICAL REGIONS - A MACROECOLOGICAL APPROACH
A comprehensive study involving 52 microtidal beaches spanning from reflective to dissipative states and located in tropical, subtropical and temperate regions in the Atlantic, Pacific and Indian oceans was carried out to unravel the relative roles of latitude and beach morphodynamics in determining beach macrobenthic species richness, abundance, biomass and
Publicado em: 2003