D.B. Freitas - Telecommunication Engineering Department, Federal University of Ceará

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论文共 15 篇作者统计合作学者相似作者

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Improved Temperature Sensitivity of the Microwave and Radiofrequency Properties of the Ceramic Matrix Li2LaNbTiO7

Kaio Jonathas Alencar Gurgel, Francisco Enilton Alves Nogueira,Daniel Barros de Freitas,Joao Paulo Costa do Nascimento,Tallison Oliveira Abreu, Paulo Maria de Oliveira Silva,Felipe Felix do Carmo,Marcelo Antonio Santos da Silva,Ronaldo Santos da Silva,Antonio Sergio Bezerra Sombra

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE (2024)

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Improving the microwave dielectric properties of BiCu₃Ti₃FeO₁₂ with the addition of Bi₂O₃

D. da M. Colares,R. F. Abreu, F. R. Silva,T. O. Abreu,F. A. C. Nobrega,D. B. Freitas,J. P. C. do Nascimento,F. G. S. Oliveira,I. F. Vasconcelos,A. Ghosh,S. J. T. Vasconcelos,J. C. Sales,

Journal of Electromagnetic Waves and Applications（2021）

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Improving the Microwave Dielectric Properties of BiCu3Ti3FeO12 with the Addition of Bi2O3

D. da M. Colares,R. F. Abreu,F. R. Silva,T. O. Abreu,F. A. C. Nobrega,D. B. Freitas,J. P. C. do Nascimento,F. G. S. Oliveira,I. F. Vasconcelos,A. Ghosh,S. J. T. Vasconcelos,J. C. Sales,

Journal of electromagnetic waves and applications（2021）

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Structural Characterization of Brazilian Niobium Pentoxide and Treatment to Obtain the Single Phase (H-Nb2o5)

J. A. da Cruz,E. A. Volnistem,R. F. Ferreira,D. B. Freitas,A. J. M. Sales,L. C. Costa,M. P. F. Graca

Thermal Science and Engineering Progress (2021)

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Enhancing the Electrical Properties of Bi4Ti3O12 (bit) Matrix by Special Alloying and Sintering

Bessa V. L.,De Morais J. E. V.,Oliveira R. G. M.,Freitas D. B., State University Valley of Acaraú, UVA, Federal University of Ceara, UFC,Silva M. A. S.,Gouveia D. X.,Sombra A. S. B.

Journal of materials science Materials in electronics（2020）

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Effects of TiO 2 Addition on the Radio-Frequency Properties of the Sr 2 CoNbO 6 Matrix

J. E. V. de Morais,R. G. M. Oliveira,V. L. Bessa,D. B. Freitas,J. C. Sales,F. F. do Carmo,D. X. Gouveia,M. A. S. Silva,A. S. B. Sombra

Journal of Elec Materi（2020）

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Cálculo da frequência natural de fundações superficiais de aerogeradores

José Régis Vieira Coutinho,Ingryd Cândido Melo,Brígida Miola Rocha,Daniel Barros de Freitas,Francisco de Assis Leandro Filho

Revista Tecnologiano. 2 (2019)

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Dielectrical and Structural Studies of Composite Matrix BiVO 4 –catio 3 and Temperature Effects by Impedance Spectroscopy

R. G. M. Oliveira,D. B. Freitas,G. S. Batista,J. E. V. de Morais,V. C. Martins,M. M. Costa,M. A. S. Silva, D. X. Gouvêa,C. Singh,A. S. B. Sombra

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS（2018）

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The Effects of TiO2 Addition on the Dielectric and Microwave Properties in the Ceramic Matrix BiVO4

R. G. M. Oliveira, J. E. Morais,D. B. Freitas,G. S. Batista,M. A. S. Silva,C. Singh,A. S. B. Sombra

International Conference on Information, Communications and Signal Processingpp.461-464, (2018)

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Análise numérica de um perfil aerodinâmico utilizando a Plataforma OpenFOAM

João de Sousa Bomfim Neto, Luana Sousa Silva,Francisco de Assis Leandro Filho,Brígida Miola Rocha,Daniel Barros de Freitas

Revista Tecnologiano. 2 (2018)

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