Numeric Algorithm
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. A QUANTITATIVE EVALUATION OF DGPS PERFORMANCE IN THE POSITION AND PSEUDORANGE DOMAINS
Abstract: This study compares in quantitative terms two methods of differential corrections to GPS positioning from the code-based pseudoranges. The differential method calculated from the coordinates (Latitude, Longitude and Altitude), called Position-Domain DGPS, has simple implementation and easy transmission by the correction vector. The second method, c
Bol. Ciênc. Geod.. Publicado em: 02/12/2019
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2. Implementação de um algoritmo numérico para solução da equação de Christoffel generalizada em acustoelasticidade. / Implementation of a numerical algorithm for solution of the generalized Chistoffel equation in acoustoelasticity.
Extensive studies carried out in the last decades on the propagation of ultrasonic waves in solids led to the development of nondestructive techniques for the assessment of the safety and integrity of industrial structures and components. The interest in the application of ultrasound techniques for stress measurement for example comes from the measurable cha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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3. Um processo de aquisição e mapeamento de dados para as bacias sedimentares marginais brasileiras
Finding oil is a hard task that requires large amounts of information and resources. Along decades of research, geoscientists from Petrobras have accumulated great amout of data. Therefore, in petroleum geology other sources of important data are generally dispersed and have many forms of representation. This Master Thesis reports the creation of a database
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2012
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4. THE USE ENVIRONMENTAL SATELLITES TO ESTEEM THE TRACES GASES AND AEROSOLS FROM BIOMASS BURNING AND ASSIMILATION IN AIR QUALITY NUMERIC MODELS / O uso de satélites ambientais para a estimativa dos fluxos de gases traços e de aerossóis liberados na queima de biomassa e sua assimilação em modelos numéricos de qualidade do ar
O presente trabalho tem como objetivo principal empregar a energia radiativa do fogo (ERF) para calcular as emissões de material particulado com diâmetro menor que 2,5µm e monóxido de carbono para o período de queimadas na América do Sul. Realizaram-se 16 experimentos de combustão de pequena escala próximos ao laboratório de radiometria (LARAD) do I
Publicado em: 2008
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5. O uso de satélites ambientais para a estimativa dos fluxos de gases traços e de aerossóis liberados na queima de biomassa e sua assimilação em modelos numéricos de qualidade do ar / THE USE ENVIRONMENTAL SATELLITES TO ESTEEM THE TRACES GASES AND AEROSOLS FROM BIOMASS BURNING AND ASSIMILATION IN AIR QUALITY NUMERIC MODELS
O presente trabalho tem como objetivo principal empregar a energia radiativa do fogo (ERF) para calcular as emissões de material particulado com diâmetro menor que 2,5µm e monóxido de carbono para o período de queimadas na América do Sul. Realizaram-se 16 experimentos de combustão de pequena escala próximos ao laboratório de radiometria (LARAD) do I
Publicado em: 2008
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6. Simulation software development for multibody systems / Desenvolvimento de uma ferramenta computacional para simulação de sistemas mecânicos multicorpos
The mathematical simulation is a very important tool to reduce production costs in new projects of agricultural machines. This work consists of a simulation software development for multibody systems (MBS), called FSSM (tool for simulation of mechanical systems), with appropriate functionalities for manufacturers of agricultural machines, using the AutoCAD g
Publicado em: 2008
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7. Uma proposta de ferramenta para controle de qualidade em linha de produÃÃo e montagem de cÃmbios automotivos utilizando filtragem adaptativa / A proposal of tool for automotive gearbox quality control in production and assembly line using adaptive filtering
Normally, automotive gearbox quality control in assembly line is made in subjective manner by specialists. The human ear, despite being a highly sensitive tool and widely used in quality control is also sensitive to emotional and environmental problems (back noises), besides not giving measurable values. In order to solve this problem, the traditional techni
Publicado em: 2007
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8. Concepções e competências de um grupo de professores polivalentes relacionadas à leitura e interpretação de tabelas e gráficos
I summarize starting from 1997 the Statistics teaching was included by the Parameters National Curriculares as one of the blocks of mathematical content to be taught in the initial series of the elementary school. To they analyze the grating curricular of some courses of Pedagogy; some researchers alerted for the scarce time in that the disciplines related t
Publicado em: 2007
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9. Perdas aparentes serie como criterio a ser minimizado no fluxo de potencia otimo reativo / Series apparent losses as a criterion to be minimized on reactive optimal power flow
The classic performance indexes, used on reactive power supply and voltage profile analysis, are the sum of active and series reactive power losses that occur on transmission systems, under determined load conditions. The minimization of active or reactive losses, changes significantly the reactive power supply required from the transmission system to suppor
Publicado em: 2006
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10. Desenvolvimento e implementação do método difusional bidimensional transiente para solução numérica de problemas convectivos difusivos
The study of groundwater contamination involves understanding the relevant mechanisms involved in the migration of pollutants (transport problems). Such problems are governed by convection-diffusion equations whose numerical solutions can be obtained through discrete techniques, when the problem is dominated by diffusion. However, when such problems are domi
Publicado em: 2006
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11. EFFICIENT USE OF THE GEOESTATIONARY SATELLITE ORBIT: ORBITAL POSITION OPTIMIZATION / USO EFICIENTE DA ÓRBITA DE SATÉLITES GEOESTACIONÁRIOS: OTIMIZAÇÃO DAS POSIÇÕES ORBITAIS
This work is related to the efficient use of the geostationary satellite orbit. It presents and describes an optimization model which chooses the best orbital position for each satellite so that the length used orbital arc is minimized. A mathematical model considering aspects such as interference, geometry details (orbital position of the systems, earth sta
Publicado em: 2005
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12. Modelagem de radiação-condução acopladas em misturas de gases reais pelo metodo das ordenadas discretas e aplicação na modelagem de janelas termicas com gases absorventes
Determination of superficial radiative heat flux and volumetric source tenn in real gas media is difficult due the strong dependency of absorption coefficient to wavenumber. One objective of this work is to develop and to apply one method for spectrally radiation-conduction heat transfer solution in homogeneous and non-homogeneous real gases mixtures. Anothe
Publicado em: 2003