Linear Resolutions
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/10/2010
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2. As relações entre as estrategias de resolução de calculos mentais e escritos e os niveis de construção das operações aritmeticas / The relationship between the strategies of resolutions of mental and written calculations and levels of construction of the arithmetic operations
A presente pesquisa analisou as estratégias de resolução de cálculos mentais e escritos, em estudantes que cursavam a terceira e a quinta série do Ensino Fundamental. Além disso, fundamentada no construtivismo de Jean Piaget, identificou níveis de construção das operações aritméticas, em situações que envolviam igualação de quantidades e cons
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2010
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3. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
Publicado em: 2010
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4. Álgebras de Koszul e resoluções projetivas / Koszul algebras and projetive resolutions
Neste trabalho estudamos algumas características das álgebras de Koszul, como por exemplo, a maneira como elas se relacionam com suas respectivas álgebras de Yoneda. Descrevemos a álgebra de Yoneda de uma álgebra monomial e como aplicação construímos uma família de álgebras: as chamadas homologicamente auto-duais. Uma álgebra de Koszul pode ser de
Publicado em: 2009
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5. Computação evolutiva na resolução de equações diferenciais ordinárias não lineares no espaço de Hilbert. / Evolutive computation in the resolution of non-linear ordiinary diferential equations in the Hilbert space.
This thesis shows a new method to get polynomial solutions to the initial value problems (IVP), with an error margin comparable to the consecrate numerical methods (NM), for both the function and its derivatives. The method works with differential equations (DEs) linear or not, beeing the developed tolls available until 4th order, whose can be expanded to hi
Publicado em: 2009
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6. Estimativa de áreas queimadas com produtos modis como subsídio à estimativa de emissões de gases de efeito estufa pela queima de biomassa na Amazônia e Cerrado Brasileiros / Burned area estimation using MODIS fire products as a subsidy for greenhouse gases emissions estimation due biomass burning in the Brazilian Amazon and Cerrado.
At present, the estimates of parameters used in global emissions models are based on low and moderate spatial resolution satellite data, and even though those was an advanced since the rising of the first orbital platforms, it is still necessary to reduce the uncertainty of these estimates. This improvement depends basically, on the capacity of the scientifi
Publicado em: 2009
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7. Estudo de fluxo de potencia com aplicação de metodos diretos na resolução de sistemas de equações lineares / Study of power flow with application of direct methods in the resolutions of systems of linear
Considering a large-scale and complex Brazil electric power system, the present work concerns the study of power flows, through simulations with the 30 and 118 bus system of the IEEE (Institute of Electrical and Electronics Engineers) applying the uncoupled methods and the direct methods of matrix decomposition...Note: The complete abstract is available with
Publicado em: 2008
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8. Adaptation of an individual external monitoring system for gamma and x ray evaluation of the individual dose equivalent "HP(10)", utilizing a photographic dosemetry technique / AdaptaÃÃo de um sistema de monitoraÃÃo individual externa para raios x e gama para avaliaÃÃo do equivalente de dose pessoaL âHp(10)â, utilizando a tÃcnica da dosimetria fotogrÃfica
Individual monitoring evaluates external souces of ionizing radiation X, γ, β and n, to which workers are occupationally exposed, for ensuring safe and acceptable radiological conditions in their places of employment. The dose received by workers should attend the limits authorized by national regulatory organs. Nowadays, there are two radiometric
Publicado em: 2007
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9. "Fusão de imagens médicas para aplicação em sistemas de planejamento de tratamentos em radioterapia" / MEDICAL IMAGES FUSION FOR APPLICATION IN TREATMENT PLANNING SYSTEMS IN RADIOTHERAPY
Software for medical images fusion was developed for utilization in CAT3D radiotherapy and MNPS radiosurgery treatment planning systems. A mutual information maximization methodology was used to make the image registration of different modalities by measure of the statistical dependence between the voxels pairs. The alignment by references points makes an in
Publicado em: 2006
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10. Avaliação dos efeitos da resolução espacial na estimativa de áreas desflorestadas em três padrões distintos de paisagem / The evaluation of spatial resolution effects over estimates of deforested ares at three different landscape patterns
Deforestation is the major problem that affects forests all over the world, including the Amazon Rainforest, which territory has been monitored by National Institute for Space Research since 1974. For so, INPE has been using Thematic Mapper and Enhanced Thematic Mapper Plus images with 30 meters of spatial resolution, on board of Landsat 5 and 7 satellites r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2005
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11. Determination of Linear Approach for Parts of Not Linear Functions for Embarked Systems Using Genetic Algorithms / Determinação de aproximação linear por partes de funções não lineares para sistemas embarcados utilizando algoritmos genéticos
In several applications in electronics, the generation of nonlinear function values using low-cost embedded systems is a problem. The nonlinear functions cannot be directly implemented due to restrictions of fixed-point calculations and limited resolution that are characteristics of the architecture of the processor employed. In this work, a procedure for de
Publicado em: 2005
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12. Avaliação dos efeitos da resolução espacial na estimativa de áreas desflorestadas em três padrões distintos de paisagem / The evaluation of spatial resolution effects over estimates of deforested ares at three different landscape patterns
Deforestation is the major problem that affects forests all over the world, including the Amazon Rainforest, which territory has been monitored by National Institute for Space Research since 1974. For so, INPE has been using Thematic Mapper and Enhanced Thematic Mapper Plus images with 30 meters of spatial resolution, on board of Landsat 5 and 7 satellites r
Publicado em: 2005