Satellite Structures
Mostrando 13-24 de 76 artigos, teses e dissertações.
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13. SASSI 2000 AND ACS SASSI 2.2 OVERVIEW ON STRUCTURESOIL-STRUCTURE INTERACTION ANALYSIS / PANORAMA DA INTERAÇÃO ESTRUTURA-SOLO-ESTRUTURA SEGUNDO O SASSI 2000 E SUA PROJEÇÃO NO ACS SASSI 2.2
Situations involving structure-soil-structure interaction using SASSI 2000 and ACS SASSI protocols are concerned. Initially, techniques of elastic plane waves propagation in solids are used to understand SASSI free-field solution algorithm. Then, in SASSI scenery, some relevant properties of the model are varied and their influence on the interaction is anal
Publicado em: 2008
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14. Investigation of multivariable control techniques for attitude control of a rigid satellite - flexible / Investigação de técnicas de controle multivariáveis no controle de atitude de um satélite rígido - flexível
The main objective of this work is the investigation of multivariable control techniques for attitude control of a Rigid Satellite - Flexible. For this investigation, a satellite model was developed consisting of a rigid body and two flexible panels. The investigated techniques are Linear Quadratic Regulator (LQR) method, Linear Quadratic Gaussian (LQG) meth
Publicado em: 2008
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15. Sistema de previsão imediata da precipitação: o hydrotrack / A rainfall nowcasting system: the hydrotrack
The knowledge of convective system evolution is of fundamental importance for understanding weather and climate, particularly in the tropics, and it is essential to improve forecasting of these systems to reduce vulnerability to extreme weather damage. The identification of predictor parameters of the evolution of convective system, based on its previous evo
Publicado em: 2008
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16. Investigation of multivariable control techniques for attitude control of a rigid satellite - flexible / Investigação de técnicas de controle multivariáveis no controle de atitude de um satélite rígido - flexível
Este trabalho tem como objetivo principal a investigação de técnicas de controle para o controle de atitude de um Satélite Rígido - Flexível. Para a investigação, desenvolveu-se um modelo de satélite constituído de um corpo rígido e dois painéis flexíveis. O Regulador Linear Quadrático (LQR), Regulador Linear Gaussiano (LQG) e Controle H Infini
Publicado em: 2008
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17. A estrutura sintática das chamadas construções resultativas em PB / The syntactic structure of the so-called BP resultative constructions
In this work, we take up again the discussion of whether resultative constructions exist in Brazilian Portuguese (BP), as discussed in the works of Foltran (1999), Marcelino (2000) and Lobato (2004), inter alia, presenting theoretical and empirical evidence against the claim that there are resultative constructions in BP that are syntactically or semanticall
Publicado em: 2008
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18. Análise de discurso crítica e etnografia : o movimento nacional de meninos e meninas de rua, sua crise e o protagonismo juvenil
This thesis is the result of a research study aimed at investigating the crisis in the National Street Childrens Movement in the Federal District. This crisis as well as its consequences on juvenile protagonism, the Movements main focus, were proven empirically and confirmed in ethnographic data. In conducting this study, ethnographic methods were used to ge
Publicado em: 2008
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19. Jeitos de ver, formas de narrar : itinerários fotográficos no Riacho Fundo II
The present study deals with the representation of the social world which is built by photographic repertoire and orality. It analyses, through a photography workshop carried out with the dwellers of Riacho Fundo II, satellite city of the Federal District, the manner in which every participant photographs elements of his/her daily life. From such images, the
Publicado em: 2007
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20. Avaliação do Sistema Nacional de Desenvolvimento das Atividades Espaciais
An accident with Brazilian Satellite Launching Vehicle (SLV-1 V03) third prototype in August, 2003 at Alcântara Base, in the State of Maranhão, dramatically exposed accumulated deficiencies affecting Brazilian space sector. A report regarding this accident published by Ministry of Defense recognized the relevance of organizational dimension for the success
Publicado em: 2007
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21. Estudo de frentes mesosféricas na região equatorial / Study of mesospheric fronts in the equatorial region
An extensive study on mesospheric fronts was carried out by means of mesospheric airglow image observation at at São João do Cariri, PB (7,4oS; 36,5oW) from July 2004 to December 2005. All sky airglow images, meteor radar wind and TIMED/SABER satellite temperature data were used in order to investigate physical scenario of the mesospheric front. Three diff
Publicado em: 2007
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22. Regional features of the onshore portion of the Cabo Frio High and its continuation towards the Campos and Santos Basin. / Feições regionais da região emersa do Alto de Cabo Frio e sua continuação para as Bacias de Campos e Santos.
The present work presents the results of a geological and geophysical study that used several tools and methods (particularly gravimetric data, magnetic data, and field work) in the attempt to identify the megastructures in the Cabo Frio High province, and their possible continuation towards the Campos and Santos coastal basins. The same tools were also used
Publicado em: 2006
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23. Influência da flexibilidade no desempenho do sistema de controle de atitude de um satélite rígido/flexível / Influence of the flexibility in the performance of a attitude control system of a RIGID/FLEXIBLE SATELLITE
Este trabalho tem como principal objetivo investigar a influencia da flexibilidade no desempenho do sistema de controle de atitude de um satélite Rígido/Flexível. Para isso é desenvolvido um modelo de um satélite constituído por uma estrutura rígida central à qual estao ligados dois apendices flexíveis. A lei de controle com o melhor desempenho é p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2005
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24. Uma nova arquitetura para a representação das regras de negócio em modelos de objetos dinâmicos / An new architecture for representing business rules in dynamic object models
The Ground System Development Division (DSS) at INPE has always developed satellite control systems with architectures that may be used as much as possible by future satellites. The present challenge is to build an Adaptive Satellite Control System, using the technology of the Dynamic Object Model, so as to comply with later requirements without having to ma
Publicado em: 2005