Sensing Type
Mostrando 13-24 de 325 artigos, teses e dissertações.
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13. Layer-by-Layer assembly of carbon nanotubes applied in sensing / Filmes automontados de nanotubos de carbono aplicados em sensores
Carbon nanotubes (CNTs) are versatile in enhancing the properties of other materials. They can be integrated with biological materials, for instance, in the fabrication of biosensors with optimized sensitivity and performance. With manipulation of CNTs in nanostructured films, one may form hybrid nanocomposites whose synergistic interaction requires experime
Publicado em: 2010
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14. Grain size effect on the electrical response of SnO2 thin and thick film gas sensors
Porous nano and micro crystalline tin oxide films were deposited by RF Magnetron Sputtering and doctor blade techniques, respectively. Electrical resistance and impedance spectroscopy measurements, as a function of temperature and atmosphere, were performed in order to determine the influence of the microstructure and working conditions over the electrical r
Materials Research. Publicado em: 2009-03
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15. Environmental characterization and land-use condition of the landscape of São Félix do Araguaia municipality / Caracterização ambiental e condição do uso da terra da paisagem do município de São Félix do Araguaia MT
There is an increase need for remote sensing data and associated analysis techniques in detecting and monitoring landscape change, particularly for resource management and planning. Information derived from remote sensing spatial data landscape has often been used to assist in the formulation of policies and provide insight into land-use patterns. To underst
Publicado em: 2009
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16. Regulation of Gene Expression by Phosphate in the Filamentous Fungus Neurospora crassa / Regulação da expressão gênica pelo fosfato no fungo filamentoso Neurospora crassa
Gene expression regulation is crucial for all organisms to rapidly adapt to environmental changes. These adaptive mechanisms are highly complex and most of them have not been completely elucidated. The inorganic phosphate (Pi), an essential nutrient for all organisms, is required for important cellular processes, such as nucleic acids biosynthesis and metabo
Publicado em: 2009
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17. Desenvolvimento e aplicações de sensores de campo magnético por indução : [dissertação]
This work addresses the development of magnetic elds meters at low frequencies. The sensing elements used are induction coils and the Chattock-Rogowski coils, both with non-ferromagnetic cores. Theoretical and experimental studies on the working principle of these sensors are presented, considering the practical aspects related to their non-ideal behavior. T
Publicado em: 2009
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18. Analyze the effect of the temperature and the time of use in sensing elements type Bourdon tube / Analise dos efeitos da temperatura e do tempo de utilização em elementos sensores tipo tubo de Bourdon
Instrumentos de monitoramento como termômetros, multímetros, voltímetros, manômetros, etc, são imprescindíveis para o controle e confiabilidade de um processo. No entanto, não muito raramente, os cuidados para o perfeito funcionamento destes instrumentos são colocados em segundo plano ou negligenciados. Os resultados destes descuidos, em um primeiro
Publicado em: 2009
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19. General type-2 fuzzy inference system adapted to the classification problem / Sistema de inferÃncia fuzzy geral do tipo-2 aplicado à classificaÃÃo
PropÃe-se, nesta tese, o desenvolvimento de uma nova ferramenta baseada em conjuntos fuzzy gerais do tipo-2 para aplicaÃÃo em processos de classificaÃÃo digital de dados. O problema de classificaÃÃo a ser considerado està relacionado à identificaÃÃo de regiÃes de floresta em imagens de satÃlite com o objetivo de auxiliar em tarefas de monitorame
Publicado em: 2009
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20. Orthoretification of high-resolution images for application in rural technical cadastral and mapping of permanent preservation and legal reserve areas / Ortorretificação de imagens de alta resolução para aplicação em cadastro técnico rural e mapeamento de áreas de preservação permanente e reservas legais
Besides the vast interpretative information generated after being submitted to geometric corrections, high spatial resolution orbital images allow extracting geometric information (angles, distances and areas). Different correction methods can be used for this purpose. If the method used corrects relief influence, it carries out image orthoretification, and
Publicado em: 2009
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21. USE OF REMOTE SENSING IMAGES TO ESTIMATE DENDROMETRIC CHARACTERISTICS OF EUCALYPTUS FORESTS / USO DE IMAGENS DE SENSORES REMOTOS NA ESTIMATIVA DE CARACTERÍSTICAS DENDROMÉTRICAS DE POVOAMENTOS DE EUCALIPTO
The Forest Management Information System is an integrated system which can be used to support the planning, implementation and monitoring of forest management activities. Beyond collected field information, geoprocessing and remote sensing systems are essential for that management type. One of the goals of this dissertation is to develop an analysis methodol
Publicado em: 2008
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22. Distribuição do babaçu e sua relação com os fatores geoambientais na bacia do Rio Cocal, estado do Tocantins
Biotic and abiotic data have been integrated in order to identify areas of occurrence of the palm tree (babaçu). It was observed preferential occurrence of individuals in areas of agricultural use.This work aims at identifying the potential areas of babaçu occurrence by using remote sensing and geoprocessing techniques. Besides that, describing those areas
Publicado em: 2008
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23. Interaction between Methylobacterium extorquens and sugarcane (Saccharum sp.) / Interação entre Methylobacterium extorquens e cana-de-açúcar (Saccharum sp.)
Plants produce a variety of defense enzymes when colonized that can impair the microorganismsestablishment. This adverse condition in the host plant lead to a response from the microorganism, which is associated with the synthesis of a set of proteins and other molecules that affect the interaction with the host and shift the bacterial community associated.
Publicado em: 2008
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24. IDENTIFICAÇÃO DE TIPOS DE CULTURAS AGRÍCOLAS A PARTIR DE SEQÜÊNCIAS DE IMAGENS MULTITEMPORAIS UTILIZANDO MODELOS DE MARKOV OCULTOS / CROP TYPE IDENTIFICATION BASED ON HIDDEN MARKOV MODELS USING MULTITEMPORAL IMAGE SEQUENCES
Esta dissertação propõe uma metodologia baseada em Modelos de Markov Ocultos (Hidden Markov Models - HMM) para a classificação de culturas agrícolas, explorando informações de seqüências temporais de imagens dos sensores TM e ETM+/Landsat. O método reconhece os diferentes tipos de culturas agrícolas analisando os perfis espectrais em uma seqüên
Publicado em: 2008