Ambiguity Resolution
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Identificação da cobertura espacial de documentos usando mineração de textos / Identification of spatial coverage documents with mining
Atualmente, é comum que usuários levem em consideração a localização geográfica dos documentos, é dizer considerar o escopo geográfico que está sendo tratado no contexto do documento, nos processos de Recuperação de Informação. No entanto, os sistemas convencionais de extração de informação que estão baseados em palavras-chave não conside
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2012
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2. Multi-channel azimuth processing in SAR images with emphasis on channel balancing alternatives.
Due to the widespread acceptance of Synthetic Aperture Radar (SAR) imagery by the scientific community in recent years, SAR system design faces ever increasing demands for wide coverage of high resolution images. This represents a challenging task, since conventional monostatic SAR system are inherently subject to a compromise between the achievable resoluti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2010
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3. Multi-channel azimuth processing in SAR images with emphasis on channel balancing alternatives.
Due to the widespread acceptance of Synthetic Aperture Radar (SAR) imagery by the scientific community in recent years, SAR system design faces ever increasing demands for wide coverage of high resolution images. This represents a challenging task, since conventional monostatic SAR system are inherently subject to a compromise between the achievable resoluti
Publicado em: 2010
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4. Algoritmos de navegação em tempo real para um sistema GPS de posicionamento relativo de precisão / Real time navigation algorithms for a percise GPS relative positioning system
The GPS signal is subject to several error sources in the measurements. The combined effects of these errors in the propagation signal cause a degradation in precision of positioning. However, using carrier phase measurements, it is possible to reduce positioning error up to 100 times, if compared with positioning using code measurernents. However, this type
Publicado em: 2009
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5. Algoritmos de navegação em tempo real para um sistema GPS de posicionamento relativo de precisão / Real time navigation algorithms for a percise GPS relative positioning system
O sinal GPS está sujeito a várias fontes de erro nas medidas. Os efeitos combinados destes erros na propagação do sinal causa uma degradação na precisão do posicionamento. No entanto. usando medidas de fase da portadora, é possível reduzir o erro de posicionamento em até 100 vezes, se comparado com o posicionamento utilizando medidas de código. No
Publicado em: 2009
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6. Delicta factis permanentis : marcas de um delito invisivel / Delicta factis permanentis : scars from an invisible crime
The fact legally defined as lesão corporal grave (grievous bodily harm) is approached from two perspectives in this research: the process of its concealing by the victims in the practices of the Police Station Specialized in Crimes against Women of Manaus/AM and the reconstruction of this experience in the autobiographical narratives elaborated by the women
Publicado em: 2008
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7. Diferenciação ou alienação? O engodo da loucura. Uma leitura da transmissão psíquica entre gerações no caso Schreber
The present study deals with the context of the psychic transmission between generations, in the scope of the psychoanalysis, approached to the psychosis as for the classic Schreber case. We bring the root of the subject in Freud worked with the notion of totem and taboo as transmitted contents of generation in generation, of narcissism related to one of the
Publicado em: 2007
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8. CARACTERIZAÇÃO DE GUIAS ÓTICOS COM REFLECTOMETRIA DE BAIXA COERÊNCIA / CHARACTERIZATION OF OPTICAL WAVEGUIDES WITH LOW COHERENCE REFLECTOMETRY
Optical Low Coherence Reflectometry (OLCR) is na important non-destructive method for characterization of optical waveguides. This work presents a study of the plurality of solutions that appear with a new configuration, which places the device out of both arms of the interferometer. Two techniques were developed to solve this problem. One of them is based o
Publicado em: 1995
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9. How the owl resolves auditory coding ambiguity
The barn owl (Tyto alba) uses interaural time difference (ITD) cues to localize sounds in the horizontal plane. Low-order binaural auditory neurons with sharp frequency tuning act as narrow-band coincidence detectors; such neurons respond equally well to sounds with a particular ITD and its phase equivalents and are said to be phase ambiguous. Higher-order n
The National Academy of Sciences.
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10. Structure of the Oxidized Form of a Flavodoxin at 2.5-Å Resolution: Resolution of the Phase Ambiguity by Anomalous Scattering
Flavodoxin from Desulfovibrio vulgaris crystallizes in the oxidized form as well-formed, tetragonal bipyramids, space group P43212, unit-cell parameters, a = b = 51.6 Å, c = 139.6 Å, 8 molecules per unit cell.
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11. Image recognition: Visual grouping, recognition, and learning
Vision extracts useful information from images. Reconstructing the three-dimensional structure of our environment and recognizing the objects that populate it are among the most important functions of our visual system. Computer vision researchers study the computational principles of vision and aim at designing algorithms that reproduce these functions. Vis
The National Academy of Sciences.
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12. Three-dimensional structure of the "long" neurotoxin from cobra venom.
The three-dimensional structure of alpha-cobra-toxin, the "long" neurotoxin from the venom of Naja naja siamensis, has been determined at 2.8-A resolution. Crystals grown as hexagonal needles have space group P6522 with unit cell parameters a = b = 74.59 A, c = 42.89 A; one molecule per asymmetric unit. Phases were determined with a single isomorphous deriva