Výsledky vyhledávání - "Rocha, Hélio Henrique Barbosa"

Dissertation/ Thesis

Ressoadores e guias dielétricos cilíndricos operando em micro-ondas e óptica: antenas dielétricas e acopladores refletores de Bragg a fibra

Autor: Rocha, Hélio Henrique Barbosa

Publikováno v: Repositório Institucional da UFCUniversidade Federal do CearáUFC.

ROCHA, H. H. B. Ressoadores e guias dielétricos cilíndricos operando em micro-ondas e óptica: antenas dielétricas e acopladores refletores de Bragg a fibra. 2010. 150 f. Tese (Doutorado em Engenharia de Teleinformática) - Centro de Tecnologia, U

Externí odkaz: http://www.repositorio.ufc.br/handle/riufc/2115

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Dissertation/ Thesis

Estudo das propriedades estruturais e de transporte dos compósitos magneto-dielétricos : [(Fe5/8Cr3/8)2O3]X-[(Fe1/4Cu3/8Ti3/8)2O3]100-X

Autor: Rocha, Hélio Henrique Barbosa

Publikováno v: Repositório Institucional da UFCUniversidade Federal do CearáUFC.

ROCHA, H. H. B. Estudo das propriedades estruturais e de transporte dos compósitos magneto-dielétricos: [(Fe5/8Cr3/8)2O3]X-[(Fe1/4Cu3/8Ti3/8)2O3]100-X. 2006. 92 f. Dissertação (Mestrado em Engenharia e Ciência de Materiais) - Centro de Tecnologi

Externí odkaz: http://www.repositorio.ufc.br/handle/riufc/2114

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The thermal stability of (CaTiO3)1−x (Cr3/4Fe5/4O3)x ceramic composites in the microwave region

Autor: Freire, Francisco Nivaldo Aguiar, Santos, Manoel Roberval Pimentel, Rocha, Hélio Henrique Barbosa, Almeida, Ana Fabíola Leite, Sales, Antônio Jefferson Mangueira, Sombra, Antônio Sérgio Bezerra

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

The thermal stability, structural and dielectric properties of the (CaTiO3)1−x(Cr3/4Fe5/4O3)x ceramic composites with x = 0, 0.1, 0.5, 0.9 and 1 have been examined in microwave region. The samples were produced via the solid-state reaction. The ort

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::a6cfac619e0712e22cc5adac5b4fb8e4
http://www.repositorio.ufc.br/handle/riufc/44494

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k–ω SST (shear stress transport) turbulence model calibration: A case study on a small scale horizontal axis wind turbine

Autor: Rocha, Paulo Alexandre Costa, Rocha, Hélio Henrique Barbosa, Carneiro, Francisco Olimpio Moura, Silva, Maria Eugênia Vieira da, Bueno, André Valente

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

This work deals with a computational investigation emphasized on the calibration of a turbulence model regarding to the operational capability of a SS-HAWT (small-scale horizontal axis wind turbine). Experimental field tests were carried out to colle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::1e2d5e4d62675e4e764b35edb9a0b2eb
http://www.repositorio.ufc.br/handle/riufc/61945

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Study of structural and transport properties of composite magneto-dielectric : [(Fe5/8Cr3/8)2O3]X-[(Fe1/4Cu3/8Ti3/8)2O3]100-X

Autor: Rocha, Hélio Henrique Barbosa

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

The processing in laboratorial scale of solid solutions, derived from Fe2O3/CuO/TiO2 and Fe2O3/Cr2O3 systems, of their composites, and the study of the structural and transport properties establish the main theme of the work. The ferrimagnetic garnet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::d79e2e20b27d4108d0f8623a49f28375
http://www.repositorio.ufc.br/handle/riufc/2114

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